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Wiimote and nJoy > Gamepad changes 

1. Added LiveUpdates, while the configuration window is open nJoy and Wiimote will check for connected/disconnected pads
2. Removed the 'Nintendo RVL-CNT-01' device from the device list, and other SDL devices with no axes/buttons
3. Added SDL (from the current SVN) to get debugging information for SDL.dll
4. Added 'Upright Wiimote' option to emulated Wiimote options

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4534 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
John Peterson 2009-11-12 18:57:35 +00:00
parent b858befba2
commit 71506bc0f7
590 changed files with 197210 additions and 17135 deletions
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128
Externals/SDL/Include/SDL.h vendored
View File

@ -25,50 +25,51 @@
*
* Main include header for the SDL library
*/
/**
* \mainpage Simple DirectMedia Layer (SDL)
http://www.libsdl.org/
*
* http://www.libsdl.org/
*
* \section intro_sec Introduction
This is the Simple DirectMedia Layer, a general API that provides low
level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL,
and 2D framebuffer across multiple platforms.
The current version supports Linux, Windows, Windows CE, BeOS, MacOS,
Mac OS X, FreeBSD, NetBSD, OpenBSD, BSD/OS, Solaris, IRIX, and QNX.
The code contains support for Dreamcast, Atari, AIX, OSF/Tru64,
RISC OS, SymbianOS, and OS/2, but these are not officially supported.
SDL is written in C, but works with C++ natively, and has bindings to
several other languages, including Ada, C#, Eiffel, Erlang, Euphoria,
Guile, Haskell, Java, Lisp, Lua, ML, Objective C, Pascal, Perl, PHP,
Pike, Pliant, Python, Ruby, and Smalltalk.
This library is distributed under GNU LGPL version 2, which can be
found in the file "COPYING". This license allows you to use SDL
freely in commercial programs as long as you link with the dynamic
library.
The best way to learn how to use SDL is to check out the header files in
the "include" subdirectory and the programs in the "test" subdirectory.
The header files and test programs are well commented and always up to date.
More documentation is available in HTML format in "docs/index.html", and
a documentation wiki is available online at:
http://www.libsdl.org/cgi/docwiki.cgi
The test programs in the "test" subdirectory are in the public domain.
Frequently asked questions are answered online:
http://www.libsdl.org/faq.php
If you need help with the library, or just want to discuss SDL related
issues, you can join the developers mailing list:
http://www.libsdl.org/mailing-list.php
Enjoy!
Sam Lantinga (slouken@libsdl.org)
*
* This is the Simple DirectMedia Layer, a general API that provides low
* level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL,
* and 2D framebuffer across multiple platforms.
*
* The current version supports Linux, Windows, Windows CE, BeOS, MacOS,
* Mac OS X, FreeBSD, NetBSD, OpenBSD, BSD/OS, Solaris, IRIX, and QNX.
* The code contains support for AIX, OSF/Tru64, RISC OS, and SymbianOS,
* but these are not officially supported.
*
* SDL is written in C, but works with C++ natively, and has bindings to
* several other languages, including Ada, C#, Eiffel, Erlang, Euphoria,
* Guile, Haskell, Java, Lisp, Lua, ML, Objective C, Pascal, Perl, PHP,
* Pike, Pliant, Python, Ruby, and Smalltalk.
*
* This library is distributed under GNU LGPL version 2, which can be
* found in the file "COPYING". This license allows you to use SDL
* freely in commercial programs as long as you link with the dynamic
* library.
*
* The best way to learn how to use SDL is to check out the header files in
* the "include" subdirectory and the programs in the "test" subdirectory.
* The header files and test programs are well commented and always up to date.
* More documentation is available in HTML format in "docs/index.html", and
* a documentation wiki is available online at:
* http://www.libsdl.org/cgi/docwiki.cgi
*
* The test programs in the "test" subdirectory are in the public domain.
*
* Frequently asked questions are answered online:
* http://www.libsdl.org/faq.php
*
* If you need help with the library, or just want to discuss SDL related
* issues, you can join the developers mailing list:
* http://www.libsdl.org/mailing-list.php
*
* Enjoy!
* Sam Lantinga (slouken@libsdl.org)
*/
#ifndef _SDL_H
@ -76,14 +77,15 @@ Enjoy!
#include "SDL_main.h"
#include "SDL_stdinc.h"
#include "SDL_atomic.h"
#include "SDL_audio.h"
#include "SDL_cdrom.h"
#include "SDL_cpuinfo.h"
#include "SDL_endian.h"
#include "SDL_error.h"
#include "SDL_events.h"
#include "SDL_loadso.h"
#include "SDL_mutex.h"
#include "SDL_power.h"
#include "SDL_rwops.h"
#include "SDL_thread.h"
#include "SDL_timer.h"
@ -101,39 +103,51 @@ extern "C" {
/* As of version 0.5, SDL is loaded dynamically into the application */
/* These are the flags which may be passed to SDL_Init() -- you should
specify the subsystems which you will be using in your application.
/**
* \name SDL_INIT_*
*
* These are the flags which may be passed to SDL_Init(). You should
* specify the subsystems which you will be using in your application.
*/
/*@{*/
#define SDL_INIT_TIMER 0x00000001
#define SDL_INIT_AUDIO 0x00000010
#define SDL_INIT_VIDEO 0x00000020
#define SDL_INIT_CDROM 0x00000100
#define SDL_INIT_JOYSTICK 0x00000200
#define SDL_INIT_HAPTIC 0x00001000
#define SDL_INIT_NOPARACHUTE 0x00100000 /* Don't catch fatal signals */
#define SDL_INIT_EVENTTHREAD 0x01000000 /* Not supported on all OS's */
#define SDL_INIT_NOPARACHUTE 0x00100000 /**< Don't catch fatal signals */
#define SDL_INIT_EVENTTHREAD 0x01000000 /**< Not supported on all OS's */
#define SDL_INIT_EVERYTHING 0x0000FFFF
/*@}*/
/* This function loads the SDL dynamically linked library and initializes
* the subsystems specified by 'flags' (and those satisfying dependencies)
* Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup
* signal handlers for some commonly ignored fatal signals (like SIGSEGV)
/**
* This function loads the SDL dynamically linked library and initializes
* the subsystems specified by \c flags (and those satisfying dependencies).
* Unless the ::SDL_INIT_NOPARACHUTE flag is set, it will install cleanup
* signal handlers for some commonly ignored fatal signals (like SIGSEGV).
*/
extern DECLSPEC int SDLCALL SDL_Init(Uint32 flags);
/* This function initializes specific SDL subsystems */
/**
* This function initializes specific SDL subsystems
*/
extern DECLSPEC int SDLCALL SDL_InitSubSystem(Uint32 flags);
/* This function cleans up specific SDL subsystems */
/**
* This function cleans up specific SDL subsystems
*/
extern DECLSPEC void SDLCALL SDL_QuitSubSystem(Uint32 flags);
/* This function returns mask of the specified subsystems which have
been initialized.
If 'flags' is 0, it returns a mask of all initialized subsystems.
/**
* This function returns mask of the specified subsystems which have
* been initialized.
*
* If \c flags is 0, it returns a mask of all initialized subsystems.
*/
extern DECLSPEC Uint32 SDLCALL SDL_WasInit(Uint32 flags);
/* This function cleans up all initialized subsystems and unloads the
/**
* This function cleans up all initialized subsystems and unloads the
* dynamically linked library. You should call it upon all exit conditions.
*/
extern DECLSPEC void SDLCALL SDL_Quit(void);

312
Externals/SDL/Include/SDL_audio.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_audio.h
*
* Access to the raw audio mixing buffer for the SDL library
* Access to the raw audio mixing buffer for the SDL library.
*/
#ifndef _SDL_audio_h
@ -44,33 +44,13 @@ extern "C" {
/* *INDENT-ON* */
#endif
typedef Uint16 SDL_AudioFormat;
/* The calculated values in this structure are calculated by SDL_OpenAudio() */
typedef struct SDL_AudioSpec
{
int freq; /* DSP frequency -- samples per second */
SDL_AudioFormat format; /* Audio data format */
Uint8 channels; /* Number of channels: 1 mono, 2 stereo */
Uint8 silence; /* Audio buffer silence value (calculated) */
Uint16 samples; /* Audio buffer size in samples (power of 2) */
Uint16 padding; /* Necessary for some compile environments */
Uint32 size; /* Audio buffer size in bytes (calculated) */
/* This function is called when the audio device needs more data.
'stream' is a pointer to the audio data buffer
'len' is the length of that buffer in bytes.
Once the callback returns, the buffer will no longer be valid.
Stereo samples are stored in a LRLRLR ordering.
*/
void (SDLCALL * callback) (void *userdata, Uint8 * stream, int len);
void *userdata;
} SDL_AudioSpec;
/*
These are what the 16 bits in SDL_AudioFormat currently mean...
(Unspecified bits are always zero.)
/**
* \brief Audio format flags.
*
* These are what the 16 bits in SDL_AudioFormat currently mean...
* (Unspecified bits are always zero).
*
* \verbatim
++-----------------------sample is signed if set
||
|| ++-----------sample is bigendian if set
@ -80,9 +60,16 @@ typedef struct SDL_AudioSpec
|| || || +---sample bit size---+
|| || || | |
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
There are macros in SDL 1.3 and later to query these bits.
\endverbatim
*
* There are macros in SDL 1.3 and later to query these bits.
*/
typedef Uint16 SDL_AudioFormat;
/**
* \name Audio flags
*/
/*@{*/
#define SDL_AUDIO_MASK_BITSIZE (0xFF)
#define SDL_AUDIO_MASK_DATATYPE (1<<8)
@ -96,27 +83,48 @@ typedef struct SDL_AudioSpec
#define SDL_AUDIO_ISLITTLEENDIAN(x) (!SDL_AUDIO_ISBIGENDIAN(x))
#define SDL_AUDIO_ISUNSIGNED(x) (!SDL_AUDIO_ISSIGNED(x))
/* Audio format flags (defaults to LSB byte order) */
#define AUDIO_U8 0x0008 /* Unsigned 8-bit samples */
#define AUDIO_S8 0x8008 /* Signed 8-bit samples */
#define AUDIO_U16LSB 0x0010 /* Unsigned 16-bit samples */
#define AUDIO_S16LSB 0x8010 /* Signed 16-bit samples */
#define AUDIO_U16MSB 0x1010 /* As above, but big-endian byte order */
#define AUDIO_S16MSB 0x9010 /* As above, but big-endian byte order */
/**
* \name Audio format flags
*
* Defaults to LSB byte order.
*/
/*@{*/
#define AUDIO_U8 0x0008 /**< Unsigned 8-bit samples */
#define AUDIO_S8 0x8008 /**< Signed 8-bit samples */
#define AUDIO_U16LSB 0x0010 /**< Unsigned 16-bit samples */
#define AUDIO_S16LSB 0x8010 /**< Signed 16-bit samples */
#define AUDIO_U16MSB 0x1010 /**< As above, but big-endian byte order */
#define AUDIO_S16MSB 0x9010 /**< As above, but big-endian byte order */
#define AUDIO_U16 AUDIO_U16LSB
#define AUDIO_S16 AUDIO_S16LSB
/*@}*/
/* int32 support new to SDL 1.3 */
#define AUDIO_S32LSB 0x8020 /* 32-bit integer samples */
#define AUDIO_S32MSB 0x9020 /* As above, but big-endian byte order */
/**
* \name int32 support
*
* New to SDL 1.3.
*/
/*@{*/
#define AUDIO_S32LSB 0x8020 /**< 32-bit integer samples */
#define AUDIO_S32MSB 0x9020 /**< As above, but big-endian byte order */
#define AUDIO_S32 AUDIO_S32LSB
/*@}*/
/* float32 support new to SDL 1.3 */
#define AUDIO_F32LSB 0x8120 /* 32-bit floating point samples */
#define AUDIO_F32MSB 0x9120 /* As above, but big-endian byte order */
/**
* \name float32 support
*
* New to SDL 1.3.
*/
/*@{*/
#define AUDIO_F32LSB 0x8120 /**< 32-bit floating point samples */
#define AUDIO_F32MSB 0x9120 /**< As above, but big-endian byte order */
#define AUDIO_F32 AUDIO_F32LSB
/*@}*/
/* Native audio byte ordering */
/**
* \name Native audio byte ordering
*/
/*@{*/
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define AUDIO_U16SYS AUDIO_U16LSB
#define AUDIO_S16SYS AUDIO_S16LSB
@ -128,91 +136,140 @@ typedef struct SDL_AudioSpec
#define AUDIO_S32SYS AUDIO_S32MSB
#define AUDIO_F32SYS AUDIO_F32MSB
#endif
/*@}*/
/* Which audio format changes are allowed when opening a device */
/**
* \name Allow change flags
*
* Which audio format changes are allowed when opening a device.
*/
/*@{*/
#define SDL_AUDIO_ALLOW_FREQUENCY_CHANGE 0x00000001
#define SDL_AUDIO_ALLOW_FORMAT_CHANGE 0x00000002
#define SDL_AUDIO_ALLOW_CHANNELS_CHANGE 0x00000004
#define SDL_AUDIO_ALLOW_ANY_CHANGE (SDL_AUDIO_ALLOW_FREQUENCY_CHANGE|SDL_AUDIO_ALLOW_FORMAT_CHANGE|SDL_AUDIO_ALLOW_CHANNELS_CHANGE)
/*@}*/
/*@}*//*Audio flags*/
/**
* The calculated values in this structure are calculated by SDL_OpenAudio().
*/
typedef struct SDL_AudioSpec
{
int freq; /**< DSP frequency -- samples per second */
SDL_AudioFormat format; /**< Audio data format */
Uint8 channels; /**< Number of channels: 1 mono, 2 stereo */
Uint8 silence; /**< Audio buffer silence value (calculated) */
Uint16 samples; /**< Audio buffer size in samples (power of 2) */
Uint16 padding; /**< Necessary for some compile environments */
Uint32 size; /**< Audio buffer size in bytes (calculated) */
/**
* This function is called when the audio device needs more data.
*
* \param stream A pointer to the audio data buffer.
* \param len The length of that buffer in bytes.
*
* Once the callback returns, the buffer will no longer be valid.
* Stereo samples are stored in a LRLRLR ordering.
*/
void (SDLCALL * callback) (void *userdata, Uint8 * stream, int len);
void *userdata;
} SDL_AudioSpec;
/* A structure to hold a set of audio conversion filters and buffers */
struct SDL_AudioCVT;
typedef void (SDLCALL * SDL_AudioFilter) (struct SDL_AudioCVT * cvt,
SDL_AudioFormat format);
/**
* A structure to hold a set of audio conversion filters and buffers.
*/
typedef struct SDL_AudioCVT
{
int needed; /* Set to 1 if conversion possible */
SDL_AudioFormat src_format; /* Source audio format */
SDL_AudioFormat dst_format; /* Target audio format */
double rate_incr; /* Rate conversion increment */
Uint8 *buf; /* Buffer to hold entire audio data */
int len; /* Length of original audio buffer */
int len_cvt; /* Length of converted audio buffer */
int len_mult; /* buffer must be len*len_mult big */
double len_ratio; /* Given len, final size is len*len_ratio */
SDL_AudioFilter filters[10]; /* Filter list */
int filter_index; /* Current audio conversion function */
int needed; /**< Set to 1 if conversion possible */
SDL_AudioFormat src_format; /**< Source audio format */
SDL_AudioFormat dst_format; /**< Target audio format */
double rate_incr; /**< Rate conversion increment */
Uint8 *buf; /**< Buffer to hold entire audio data */
int len; /**< Length of original audio buffer */
int len_cvt; /**< Length of converted audio buffer */
int len_mult; /**< buffer must be len*len_mult big */
double len_ratio; /**< Given len, final size is len*len_ratio */
SDL_AudioFilter filters[10]; /**< Filter list */
int filter_index; /**< Current audio conversion function */
} SDL_AudioCVT;
/* Function prototypes */
/* These functions return the list of built in audio drivers, in the
/**
* \name Driver discovery functions
*
* These functions return the list of built in audio drivers, in the
* order that they are normally initialized by default.
*/
/*@{*/
extern DECLSPEC int SDLCALL SDL_GetNumAudioDrivers(void);
extern DECLSPEC const char *SDLCALL SDL_GetAudioDriver(int index);
/*@}*/
/* These functions are used internally, and should not be used unless you
* have a specific need to specify the audio driver you want to use.
* You should normally use SDL_Init() or SDL_InitSubSystem().
/**
* \name Initialization and cleanup
*
* \internal These functions are used internally, and should not be used unless
* you have a specific need to specify the audio driver you want to
* use. You should normally use SDL_Init() or SDL_InitSubSystem().
*/
/*@{*/
extern DECLSPEC int SDLCALL SDL_AudioInit(const char *driver_name);
extern DECLSPEC void SDLCALL SDL_AudioQuit(void);
/*@}*/
/* This function returns the name of the current audio driver, or NULL
/**
* This function returns the name of the current audio driver, or NULL
* if no driver has been initialized.
*/
extern DECLSPEC const char *SDLCALL SDL_GetCurrentAudioDriver(void);
/*
/**
* This function opens the audio device with the desired parameters, and
* returns 0 if successful, placing the actual hardware parameters in the
* structure pointed to by 'obtained'. If 'obtained' is NULL, the audio
* structure pointed to by \c obtained. If \c obtained is NULL, the audio
* data passed to the callback function will be guaranteed to be in the
* requested format, and will be automatically converted to the hardware
* audio format if necessary. This function returns -1 if it failed
* to open the audio device, or couldn't set up the audio thread.
*
* When filling in the desired audio spec structure,
* 'desired->freq' should be the desired audio frequency in samples-per-second.
* 'desired->format' should be the desired audio format.
* 'desired->samples' is the desired size of the audio buffer, in samples.
* This number should be a power of two, and may be adjusted by the audio
* driver to a value more suitable for the hardware. Good values seem to
* range between 512 and 8096 inclusive, depending on the application and
* CPU speed. Smaller values yield faster response time, but can lead
* to underflow if the application is doing heavy processing and cannot
* fill the audio buffer in time. A stereo sample consists of both right
* and left channels in LR ordering.
* - \c desired->freq should be the desired audio frequency in samples-per-
* second.
* - \c desired->format should be the desired audio format.
* - \c desired->samples is the desired size of the audio buffer, in
* samples. This number should be a power of two, and may be adjusted by
* the audio driver to a value more suitable for the hardware. Good values
* seem to range between 512 and 8096 inclusive, depending on the
* application and CPU speed. Smaller values yield faster response time,
* but can lead to underflow if the application is doing heavy processing
* and cannot fill the audio buffer in time. A stereo sample consists of
* both right and left channels in LR ordering.
* Note that the number of samples is directly related to time by the
* following formula: ms = (samples*1000)/freq
* 'desired->size' is the size in bytes of the audio buffer, and is
* following formula: \code ms = (samples*1000)/freq \endcode
* - \c desired->size is the size in bytes of the audio buffer, and is
* calculated by SDL_OpenAudio().
* 'desired->silence' is the value used to set the buffer to silence,
* - \c desired->silence is the value used to set the buffer to silence,
* and is calculated by SDL_OpenAudio().
* 'desired->callback' should be set to a function that will be called
* - \c desired->callback should be set to a function that will be called
* when the audio device is ready for more data. It is passed a pointer
* to the audio buffer, and the length in bytes of the audio buffer.
* This function usually runs in a separate thread, and so you should
* protect data structures that it accesses by calling SDL_LockAudio()
* and SDL_UnlockAudio() in your code.
* 'desired->userdata' is passed as the first parameter to your callback
* - \c desired->userdata is passed as the first parameter to your callback
* function.
*
* The audio device starts out playing silence when it's opened, and should
* be enabled for playing by calling SDL_PauseAudio(0) when you are ready
* be enabled for playing by calling \c SDL_PauseAudio(0) when you are ready
* for your audio callback function to be called. Since the audio driver
* may modify the requested size of the audio buffer, you should allocate
* any local mixing buffers after you open the audio device.
@ -220,8 +277,9 @@ extern DECLSPEC const char *SDLCALL SDL_GetCurrentAudioDriver(void);
extern DECLSPEC int SDLCALL SDL_OpenAudio(SDL_AudioSpec * desired,
SDL_AudioSpec * obtained);
/*
/**
* SDL Audio Device IDs.
*
* A successful call to SDL_OpenAudio() is always device id 1, and legacy
* SDL audio APIs assume you want this device ID. SDL_OpenAudioDevice() calls
* always returns devices >= 2 on success. The legacy calls are good both
@ -230,20 +288,21 @@ extern DECLSPEC int SDLCALL SDL_OpenAudio(SDL_AudioSpec * desired,
*/
typedef Uint32 SDL_AudioDeviceID;
/*
/**
* Get the number of available devices exposed by the current driver.
* Only valid after a successfully initializing the audio subsystem.
* Returns -1 if an explicit list of devices can't be determined; this is
* not an error. For example, if SDL is set up to talk to a remote audio
* server, it can't list every one available on the Internet, but it will
* still allow a specific host to be specified to SDL_OpenAudioDevice().
*
* In many common cases, when this function returns a value <= 0, it can still
* successfully open the default device (NULL for first argument of
* SDL_OpenAudioDevice()).
*/
extern DECLSPEC int SDLCALL SDL_GetNumAudioDevices(int iscapture);
/*
/**
* Get the human-readable name of a specific audio device.
* Must be a value between 0 and (number of audio devices-1).
* Only valid after a successfully initializing the audio subsystem.
@ -260,14 +319,17 @@ extern DECLSPEC const char *SDLCALL SDL_GetAudioDeviceName(int index,
int iscapture);
/*
/**
* Open a specific audio device. Passing in a device name of NULL requests
* the most reasonable default (and is equivalent to calling SDL_OpenAudio()).
* The device name is a UTF-8 string reported by SDL_GetAudioDevice(), but
*
* The device name is a UTF-8 string reported by SDL_GetAudioDeviceName(), but
* some drivers allow arbitrary and driver-specific strings, such as a
* hostname/IP address for a remote audio server, or a filename in the
* diskaudio driver.
* Returns 0 on error, a valid device ID that is >= 2 on success.
*
* \return 0 on error, a valid device ID that is >= 2 on success.
*
* SDL_OpenAudio(), unlike this function, always acts on device ID 1.
*/
extern DECLSPEC SDL_AudioDeviceID SDLCALL SDL_OpenAudioDevice(const char
@ -283,9 +345,12 @@ extern DECLSPEC SDL_AudioDeviceID SDLCALL SDL_OpenAudioDevice(const char
/*
* Get the current audio state:
/**
* \name Audio state
*
* Get the current audio state.
*/
/*@{*/
typedef enum
{
SDL_AUDIO_STOPPED = 0,
@ -296,28 +361,35 @@ extern DECLSPEC SDL_audiostatus SDLCALL SDL_GetAudioStatus(void);
extern DECLSPEC SDL_audiostatus SDLCALL
SDL_GetAudioDeviceStatus(SDL_AudioDeviceID dev);
/*@}*//*Audio State*/
/*
* This function pauses and unpauses the audio callback processing.
* It should be called with a parameter of 0 after opening the audio
/**
* \name Pause audio functions
*
* These functions pause and unpause the audio callback processing.
* They should be called with a parameter of 0 after opening the audio
* device to start playing sound. This is so you can safely initialize
* data for your callback function after opening the audio device.
* Silence will be written to the audio device during the pause.
*/
/*@{*/
extern DECLSPEC void SDLCALL SDL_PauseAudio(int pause_on);
extern DECLSPEC void SDLCALL SDL_PauseAudioDevice(SDL_AudioDeviceID dev,
int pause_on);
/*@}*//*Pause audio functions*/
/*
/**
* This function loads a WAVE from the data source, automatically freeing
* that source if 'freesrc' is non-zero. For example, to load a WAVE file,
* that source if \c freesrc is non-zero. For example, to load a WAVE file,
* you could do:
* \code
* SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...);
* \endcode
*
* If this function succeeds, it returns the given SDL_AudioSpec,
* filled with the audio data format of the wave data, and sets
* 'audio_buf' to a malloc()'d buffer containing the audio data,
* and sets 'audio_len' to the length of that audio buffer, in bytes.
* \c *audio_buf to a malloc()'d buffer containing the audio data,
* and sets \c *audio_len to the length of that audio buffer, in bytes.
* You need to free the audio buffer with SDL_FreeWAV() when you are
* done with it.
*
@ -331,21 +403,25 @@ extern DECLSPEC SDL_AudioSpec *SDLCALL SDL_LoadWAV_RW(SDL_RWops * src,
Uint8 ** audio_buf,
Uint32 * audio_len);
/* Compatibility convenience function -- loads a WAV from a file */
/**
* Loads a WAV from a file.
* Compatibility convenience function.
*/
#define SDL_LoadWAV(file, spec, audio_buf, audio_len) \
SDL_LoadWAV_RW(SDL_RWFromFile(file, "rb"),1, spec,audio_buf,audio_len)
/*
/**
* This function frees data previously allocated with SDL_LoadWAV_RW()
*/
extern DECLSPEC void SDLCALL SDL_FreeWAV(Uint8 * audio_buf);
/*
/**
* This function takes a source format and rate and a destination format
* and rate, and initializes the 'cvt' structure with information needed
* and rate, and initializes the \c cvt structure with information needed
* by SDL_ConvertAudio() to convert a buffer of audio data from one format
* to the other.
* Returns -1 if the format conversion is not supported, 0 if there's
*
* \return -1 if the format conversion is not supported, 0 if there's
* no conversion needed, or 1 if the audio filter is set up.
*/
extern DECLSPEC int SDLCALL SDL_BuildAudioCVT(SDL_AudioCVT * cvt,
@ -356,29 +432,31 @@ extern DECLSPEC int SDLCALL SDL_BuildAudioCVT(SDL_AudioCVT * cvt,
Uint8 dst_channels,
int dst_rate);
/* Once you have initialized the 'cvt' structure using SDL_BuildAudioCVT(),
* created an audio buffer cvt->buf, and filled it with cvt->len bytes of
/**
* Once you have initialized the \c cvt structure using SDL_BuildAudioCVT(),
* created an audio buffer \c cvt->buf, and filled it with \c cvt->len bytes of
* audio data in the source format, this function will convert it in-place
* to the desired format.
*
* The data conversion may expand the size of the audio data, so the buffer
* cvt->buf should be allocated after the cvt structure is initialized by
* SDL_BuildAudioCVT(), and should be cvt->len*cvt->len_mult bytes long.
* \c cvt->buf should be allocated after the \c cvt structure is initialized by
* SDL_BuildAudioCVT(), and should be \c cvt->len*cvt->len_mult bytes long.
*/
extern DECLSPEC int SDLCALL SDL_ConvertAudio(SDL_AudioCVT * cvt);
/*
#define SDL_MIX_MAXVOLUME 128
/**
* This takes two audio buffers of the playing audio format and mixes
* them, performing addition, volume adjustment, and overflow clipping.
* The volume ranges from 0 - 128, and should be set to SDL_MIX_MAXVOLUME
* The volume ranges from 0 - 128, and should be set to ::SDL_MIX_MAXVOLUME
* for full audio volume. Note this does not change hardware volume.
* This is provided for convenience -- you can mix your own audio data.
*/
#define SDL_MIX_MAXVOLUME 128
extern DECLSPEC void SDLCALL SDL_MixAudio(Uint8 * dst, const Uint8 * src,
Uint32 len, int volume);
/*
* This works like SDL_MixAudio, but you specify the audio format instead of
/**
* This works like SDL_MixAudio(), but you specify the audio format instead of
* using the format of audio device 1. Thus it can be used when no audio
* device is open at all.
*/
@ -387,25 +465,29 @@ extern DECLSPEC void SDLCALL SDL_MixAudioFormat(Uint8 * dst,
SDL_AudioFormat format,
Uint32 len, int volume);
/*
/**
* \name Audio lock functions
*
* The lock manipulated by these functions protects the callback function.
* During a LockAudio/UnlockAudio pair, you can be guaranteed that the
* callback function is not running. Do not call these from the callback
* During a SDL_LockAudio()/SDL_UnlockAudio() pair, you can be guaranteed that
* the callback function is not running. Do not call these from the callback
* function or you will cause deadlock.
*/
/*@{*/
extern DECLSPEC void SDLCALL SDL_LockAudio(void);
extern DECLSPEC void SDLCALL SDL_LockAudioDevice(SDL_AudioDeviceID dev);
extern DECLSPEC void SDLCALL SDL_UnlockAudio(void);
extern DECLSPEC void SDLCALL SDL_UnlockAudioDevice(SDL_AudioDeviceID dev);
/*@}*//*Audio lock functions*/
/*
/**
* This function shuts down audio processing and closes the audio device.
*/
extern DECLSPEC void SDLCALL SDL_CloseAudio(void);
extern DECLSPEC void SDLCALL SDL_CloseAudioDevice(SDL_AudioDeviceID dev);
/*
* Returns 1 if audio device is still functioning, zero if not, -1 on error.
/**
* \return 1 if audio device is still functioning, zero if not, -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_AudioDeviceConnected(SDL_AudioDeviceID dev);

135
Externals/SDL/Include/SDL_compat.h vendored
View File

@ -20,7 +20,30 @@
slouken@libsdl.org
*/
/* This file contains functions for backwards compatibility with SDL 1.2 */
/**
* \defgroup Compatibility SDL 1.2 Compatibility API
*/
/*@{*/
/**
* \file SDL_compat.h
*
* This file contains functions for backwards compatibility with SDL 1.2.
*/
/**
* \def SDL_NO_COMPAT
*
* #define SDL_NO_COMPAT to prevent SDL_compat.h from being included.
* SDL_NO_COMPAT is intended to make it easier to covert SDL 1.2 code to
* SDL 1.3/2.0.
*/
/*@}*/
#ifdef SDL_NO_COMPAT
#define _SDL_compat_h
#endif
#ifndef _SDL_compat_h
#define _SDL_compat_h
@ -36,7 +59,16 @@ extern "C" {
/* *INDENT-ON* */
#endif
#define SDL_SWSURFACE 0x00000000 /* Not used */
/**
* \addtogroup Compatibility
*/
/*@{*/
/**
* \name Surface flags
*/
/*@{*/
#define SDL_SWSURFACE 0x00000000 /**< \note Not used */
#define SDL_SRCALPHA 0x00010000
#define SDL_SRCCOLORKEY 0x00020000
#define SDL_ANYFORMAT 0x00100000
@ -46,10 +78,11 @@ extern "C" {
#define SDL_RESIZABLE 0x01000000
#define SDL_NOFRAME 0x02000000
#define SDL_OPENGL 0x04000000
#define SDL_HWSURFACE 0x08000001 /* Not used */
#define SDL_ASYNCBLIT 0x08000000 /* Not used */
#define SDL_RLEACCELOK 0x08000000 /* Not used */
#define SDL_HWACCEL 0x08000000 /* Not used */
#define SDL_HWSURFACE 0x08000001 /**< \note Not used */
#define SDL_ASYNCBLIT 0x08000000 /**< \note Not used */
#define SDL_RLEACCELOK 0x08000000 /**< \note Not used */
#define SDL_HWACCEL 0x08000000 /**< \note Not used */
/*@}*//*Surface flags*/
#define SDL_APPMOUSEFOCUS 0x01
#define SDL_APPINPUTFOCUS 0x02
@ -93,35 +126,51 @@ typedef struct SDL_VideoInfo
int current_h;
} SDL_VideoInfo;
/* The most common video overlay formats.
For an explanation of these pixel formats, see:
http://www.webartz.com/fourcc/indexyuv.htm
For information on the relationship between color spaces, see:
http://www.neuro.sfc.keio.ac.jp/~aly/polygon/info/color-space-faq.html
/**
* \name Overlay formats
*
* The most common video overlay formats.
*
* For an explanation of these pixel formats, see:
* http://www.webartz.com/fourcc/indexyuv.htm
*
* For information on the relationship between color spaces, see:
* http://www.neuro.sfc.keio.ac.jp/~aly/polygon/info/color-space-faq.html
*/
#define SDL_YV12_OVERLAY 0x32315659 /* Planar mode: Y + V + U (3 planes) */
#define SDL_IYUV_OVERLAY 0x56555949 /* Planar mode: Y + U + V (3 planes) */
#define SDL_YUY2_OVERLAY 0x32595559 /* Packed mode: Y0+U0+Y1+V0 (1 plane) */
#define SDL_UYVY_OVERLAY 0x59565955 /* Packed mode: U0+Y0+V0+Y1 (1 plane) */
#define SDL_YVYU_OVERLAY 0x55595659 /* Packed mode: Y0+V0+Y1+U0 (1 plane) */
/*@{*/
#define SDL_YV12_OVERLAY 0x32315659 /**< Planar mode: Y + V + U (3 planes) */
#define SDL_IYUV_OVERLAY 0x56555949 /**< Planar mode: Y + U + V (3 planes) */
#define SDL_YUY2_OVERLAY 0x32595559 /**< Packed mode: Y0+U0+Y1+V0 (1 plane) */
#define SDL_UYVY_OVERLAY 0x59565955 /**< Packed mode: U0+Y0+V0+Y1 (1 plane) */
#define SDL_YVYU_OVERLAY 0x55595659 /**< Packed mode: Y0+V0+Y1+U0 (1 plane) */
/*@}*//*Overlay formats*/
/* The YUV hardware video overlay */
/**
* The YUV hardware video overlay.
*/
typedef struct SDL_Overlay
{
Uint32 format; /* Read-only */
int w, h; /* Read-only */
int planes; /* Read-only */
Uint16 *pitches; /* Read-only */
Uint8 **pixels; /* Read-write */
Uint32 format; /**< Read-only */
int w, h; /**< Read-only */
int planes; /**< Read-only */
Uint16 *pitches; /**< Read-only */
Uint8 **pixels; /**< Read-write */
/* Hardware-specific surface info */
/**
* \name Hardware-specific surface info
*/
/*@{*/
struct private_yuvhwfuncs *hwfuncs;
struct private_yuvhwdata *hwdata;
/*@}*//*Hardware-specific surface info*/
/* Special flags */
Uint32 hw_overlay:1; /* Flag: This overlay hardware accelerated? */
/**
* \name Special flags
*/
/*@{*/
Uint32 hw_overlay:1; /**< Flag: This overlay hardware accelerated? */
Uint32 UnusedBits:31;
/*@}*//*Special flags*/
} SDL_Overlay;
typedef enum
@ -133,9 +182,17 @@ typedef enum
struct SDL_SysWMinfo;
/* Obsolete or renamed key codes */
/**
* \name Obsolete or renamed key codes
*/
/*@{*/
/* These key constants were renamed for clarity or consistency. */
/**
* \name Renamed keys
*
* These key constants were renamed for clarity or consistency.
*/
/*@{*/
#define SDLK_0 '0'
#define SDLK_1 '1'
#define SDLK_2 '2'
@ -204,19 +261,35 @@ struct SDL_SysWMinfo;
#define SDLK_NUMLOCK SDLK_NUMLOCKCLEAR
#define SDLK_SCROLLOCK SDLK_SCROLLLOCK
#define SDLK_PRINT SDLK_PRINTSCREEN
/*@}*//*Renamed keys*/
/* The META modifier is equivalent to the GUI modifier from the USB standard */
/**
* \name META modifier
*
* The META modifier is equivalent to the GUI modifier from the USB standard.
*/
/*@{*/
#define KMOD_LMETA KMOD_LGUI
#define KMOD_RMETA KMOD_RGUI
#define KMOD_META KMOD_GUI
/*@}*//*META modifier*/
/* These keys don't appear in the USB specification (or at least not under those names). I'm unsure if the following assignments make sense or if these codes should be defined as actual additional SDLK_ constants. */
/**
* \name Not in USB
*
* These keys don't appear in the USB specification (or at least not under
* those names). I'm unsure if the following assignments make sense or if these
* codes should be defined as actual additional SDLK_ constants.
*/
/*@{*/
#define SDLK_LSUPER SDLK_LMETA
#define SDLK_RSUPER SDLK_RMETA
#define SDLK_COMPOSE SDLK_APPLICATION
#define SDLK_BREAK SDLK_STOP
#define SDLK_EURO SDLK_2
/*@}*//*Not in USB*/
/*@}*//*Obsolete or renamed key codes*/
#define SDL_SetModuleHandle(x)
#define SDL_AllocSurface SDL_CreateRGBSurface
@ -277,6 +350,8 @@ extern DECLSPEC int SDLCALL SDL_EnableKeyRepeat(int delay, int interval);
extern DECLSPEC void SDLCALL SDL_GetKeyRepeat(int *delay, int *interval);
extern DECLSPEC int SDLCALL SDL_EnableUNICODE(int enable);
/*@}*//*Compatibility*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */

190
Externals/SDL/Include/SDL_config.h vendored
View File

@ -20,26 +20,178 @@
slouken@libsdl.org
*/
#ifndef _SDL_config_h
#define _SDL_config_h
#ifndef _SDL_config_win32_h
#define _SDL_config_win32_h
#include "SDL_platform.h"
/* Add any platform that doesn't build using the configure system */
#if defined(__NINTENDODS__)
#include "SDL_config_nintendods.h"
#elif defined(__DREAMCAST__)
#include "SDL_config_dreamcast.h"
#elif defined(__IPHONEOS__)
#include "SDL_config_iphoneos.h"
#elif defined(__MACOSX__)
#include "SDL_config_macosx.h"
#elif defined(__WIN32__)
#include "SDL_config_win32.h"
#elif defined(__OS2__)
#include "SDL_config_os2.h"
#else
#include "SDL_config_minimal.h"
#endif /* platform config */
/* This is a set of defines to configure the SDL features */
#endif /* _SDL_config_h */
#if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
#if defined(__GNUC__) || defined(__DMC__)
#define HAVE_STDINT_H 1
#elif defined(_MSC_VER)
typedef signed __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef signed __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef signed __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef signed __int64 int64_t;
typedef unsigned __int64 uint64_t;
#ifndef _UINTPTR_T_DEFINED
#ifdef _WIN64
typedef unsigned __int64 uintptr_t;
#else
typedef unsigned int uintptr_t;
#endif
#define _UINTPTR_T_DEFINED
#endif
/* Older Visual C++ headers don't have the Win64-compatible typedefs... */
#if ((_MSC_VER <= 1200) && (!defined(DWORD_PTR)))
#define DWORD_PTR DWORD
#endif
#if ((_MSC_VER <= 1200) && (!defined(LONG_PTR)))
#define LONG_PTR LONG
#endif
#else /* !__GNUC__ && !_MSC_VER */
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef signed long long int64_t;
typedef unsigned long long uint64_t;
#ifndef _SIZE_T_DEFINED_
#define _SIZE_T_DEFINED_
typedef unsigned int size_t;
#endif
typedef unsigned int uintptr_t;
#endif /* __GNUC__ || _MSC_VER */
#endif /* !_STDINT_H_ && !HAVE_STDINT_H */
#ifdef _WIN64
# define SIZEOF_VOIDP 8
#else
# define SIZEOF_VOIDP 4
#endif
#define SDL_HAS_64BIT_TYPE 1
/* Enabled for SDL 1.2 (binary compatibility) */
//#define HAVE_LIBC 1
#ifdef HAVE_LIBC
/* Useful headers */
#define HAVE_STDIO_H 1
#define STDC_HEADERS 1
#define HAVE_STRING_H 1
#define HAVE_CTYPE_H 1
#define HAVE_MATH_H 1
#ifndef _WIN32_WCE
#define HAVE_SIGNAL_H 1
#endif
/* C library functions */
#define HAVE_MALLOC 1
#define HAVE_CALLOC 1
#define HAVE_REALLOC 1
#define HAVE_FREE 1
#define HAVE_ALLOCA 1
#define HAVE_QSORT 1
#define HAVE_ABS 1
#define HAVE_MEMSET 1
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_MEMCMP 1
#define HAVE_STRLEN 1
#define HAVE__STRREV 1
#define HAVE__STRUPR 1
#define HAVE__STRLWR 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1
#define HAVE_ITOA 1
#define HAVE__LTOA 1
#define HAVE__ULTOA 1
#define HAVE_STRTOL 1
#define HAVE_STRTOUL 1
#define HAVE_STRTOLL 1
#define HAVE_STRTOD 1
#define HAVE_ATOI 1
#define HAVE_ATOF 1
#define HAVE_STRCMP 1
#define HAVE_STRNCMP 1
#define HAVE__STRICMP 1
#define HAVE__STRNICMP 1
#define HAVE_SSCANF 1
#define HAVE_M_PI 1
#define HAVE_CEIL 1
#define HAVE_COPYSIGN 1
#define HAVE_COS 1
#define HAVE_COSF 1
#define HAVE_FABS 1
#define HAVE_FLOOR 1
#define HAVE_LOG 1
#define HAVE_POW 1
#define HAVE_SCALBN 1
#define HAVE_SIN 1
#define HAVE_SINF 1
#define HAVE_SQRT 1
#else
#define HAVE_STDARG_H 1
#define HAVE_STDDEF_H 1
#endif
/* Enable various audio drivers */
#ifndef _WIN32_WCE
#define SDL_AUDIO_DRIVER_DSOUND 1
#endif
#define SDL_AUDIO_DRIVER_WINWAVEOUT 1
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable various input drivers */
#ifdef _WIN32_WCE
#define SDL_JOYSTICK_DISABLED 1
#define SDL_HAPTIC_DUMMY 1
#else
#define SDL_JOYSTICK_DINPUT 1
#define SDL_HAPTIC_DINPUT 1
#endif
/* Enable various shared object loading systems */
#define SDL_LOADSO_WIN32 1
/* Enable various threading systems */
#define SDL_THREAD_WIN32 1
/* Enable various timer systems */
#ifdef _WIN32_WCE
#define SDL_TIMER_WINCE 1
#else
#define SDL_TIMER_WIN32 1
#endif
/* Enable various video drivers */
#define SDL_VIDEO_DRIVER_DUMMY 1
#define SDL_VIDEO_DRIVER_WIN32 1
#define SDL_VIDEO_RENDER_D3D 1
#define SDL_VIDEO_RENDER_GDI 1
/* Enable OpenGL support */
#ifndef _WIN32_WCE
#define SDL_VIDEO_OPENGL 1
#define SDL_VIDEO_OPENGL_WGL 1
#define SDL_VIDEO_RENDER_OGL 1
#endif
/* Enable system power support */
#define SDL_POWER_WINDOWS 1
/* Enable assembly routines (Win64 doesn't have inline asm) */
#ifndef _WIN64
#define SDL_ASSEMBLY_ROUTINES 1
#endif
#endif /* _SDL_config_win32_h */

12
Externals/SDL/Include/SDL_config.h.default vendored
View File

@ -25,19 +25,21 @@
#include "SDL_platform.h"
/* Add any platform that doesn't build using the configure system */
/**
* \file SDL_config.h.default
*
* SDL_config.h for any platform that doesn't build using the configure system.
*/
/* Add any platform that doesn't build using the configure system. */
#if defined(__NINTENDODS__)
#include "SDL_config_nintendods.h"
#elif defined(__DREAMCAST__)
#include "SDL_config_dreamcast.h"
#elif defined(__IPHONEOS__)
#include "SDL_config_iphoneos.h"
#elif defined(__MACOSX__)
#include "SDL_config_macosx.h"
#elif defined(__WIN32__)
#include "SDL_config_win32.h"
#elif defined(__OS2__)
#include "SDL_config_os2.h"
#else
#include "SDL_config_minimal.h"
#endif /* platform config */

71
Externals/SDL/Include/SDL_config.h.in vendored
View File

@ -23,7 +23,11 @@
#ifndef _SDL_config_h
#define _SDL_config_h
/* This is a set of defines to configure the SDL features */
/**
* \file SDL_config.h.in
*
* This is a set of defines to configure the SDL features
*/
/* General platform specific identifiers */
#include "SDL_platform.h"
@ -39,6 +43,7 @@
#undef volatile
/* C datatypes */
#if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
#undef size_t
#undef int8_t
#undef uint8_t
@ -49,10 +54,10 @@
#undef int64_t
#undef uint64_t
#undef uintptr_t
#undef SDL_HAS_64BIT_TYPE
#endif /* !_STDINT_H_ && !HAVE_STDINT_H */
/* Endianness */
#undef SDL_BYTEORDER
#undef SIZEOF_VOIDP
#undef SDL_HAS_64BIT_TYPE
/* Comment this if you want to build without any C library requirements */
#undef HAVE_LIBC
@ -146,8 +151,8 @@
#undef HAVE_SETJMP
#undef HAVE_NANOSLEEP
#undef HAVE_CLOCK_GETTIME
#undef HAVE_DLVSYM
#undef HAVE_GETPAGESIZE
#undef HAVE_MPROTECT
#else
/* We may need some replacement for stdarg.h here */
@ -156,7 +161,6 @@
/* Allow disabling of core subsystems */
#undef SDL_AUDIO_DISABLED
#undef SDL_CDROM_DISABLED
#undef SDL_CPUINFO_DISABLED
#undef SDL_EVENTS_DISABLED
#undef SDL_FILE_DISABLED
@ -166,6 +170,7 @@
#undef SDL_THREADS_DISABLED
#undef SDL_TIMERS_DISABLED
#undef SDL_VIDEO_DISABLED
#undef SDL_POWER_DISABLED
/* Enable various audio drivers */
#undef SDL_AUDIO_DRIVER_ALSA
@ -177,15 +182,12 @@
#undef SDL_AUDIO_DRIVER_BEOSAUDIO
#undef SDL_AUDIO_DRIVER_BSD
#undef SDL_AUDIO_DRIVER_COREAUDIO
#undef SDL_AUDIO_DRIVER_DART
#undef SDL_AUDIO_DRIVER_DC
#undef SDL_AUDIO_DRIVER_DISK
#undef SDL_AUDIO_DRIVER_DUMMY
#undef SDL_AUDIO_DRIVER_DMEDIA
#undef SDL_AUDIO_DRIVER_DSOUND
#undef SDL_AUDIO_DRIVER_ESD
#undef SDL_AUDIO_DRIVER_ESD_DYNAMIC
#undef SDL_AUDIO_DRIVER_MINT
#undef SDL_AUDIO_DRIVER_MMEAUDIO
#undef SDL_AUDIO_DRIVER_NAS
#undef SDL_AUDIO_DRIVER_NAS_DYNAMIC
@ -193,41 +195,21 @@
#undef SDL_AUDIO_DRIVER_OSS
#undef SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H
#undef SDL_AUDIO_DRIVER_PAUDIO
#undef SDL_AUDIO_DRIVER_QNXNTO
#undef SDL_AUDIO_DRIVER_SNDMGR
#undef SDL_AUDIO_DRIVER_QSA
#undef SDL_AUDIO_DRIVER_SUNAUDIO
#undef SDL_AUDIO_DRIVER_WINWAVEOUT
#undef SDL_AUDIO_DRIVER_FUSIONSOUND
#undef SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC
/* Enable various cdrom drivers */
#undef SDL_CDROM_AIX
#undef SDL_CDROM_BEOS
#undef SDL_CDROM_BSDI
#undef SDL_CDROM_DC
#undef SDL_CDROM_DUMMY
#undef SDL_CDROM_FREEBSD
#undef SDL_CDROM_LINUX
#undef SDL_CDROM_MACOSX
#undef SDL_CDROM_MINT
#undef SDL_CDROM_OPENBSD
#undef SDL_CDROM_OS2
#undef SDL_CDROM_OSF
#undef SDL_CDROM_QNX
#undef SDL_CDROM_WIN32
/* Enable various input drivers */
#undef SDL_INPUT_LINUXEV
#undef SDL_INPUT_TSLIB
#undef SDL_JOYSTICK_BEOS
#undef SDL_JOYSTICK_DC
#undef SDL_JOYSTICK_DINPUT
#undef SDL_JOYSTICK_DUMMY
#undef SDL_JOYSTICK_IOKIT
#undef SDL_JOYSTICK_LINUX
#undef SDL_JOYSTICK_MINT
#undef SDL_JOYSTICK_NDS
#undef SDL_JOYSTICK_OS2
#undef SDL_JOYSTICK_RISCOS
#undef SDL_JOYSTICK_WINMM
#undef SDL_JOYSTICK_USBHID
@ -243,14 +225,11 @@
#undef SDL_LOADSO_DLOPEN
#undef SDL_LOADSO_DUMMY
#undef SDL_LOADSO_LDG
#undef SDL_LOADSO_OS2
#undef SDL_LOADSO_WIN32
/* Enable various threading systems */
#undef SDL_THREAD_BEOS
#undef SDL_THREAD_DC
#undef SDL_THREAD_NDS
#undef SDL_THREAD_OS2
#undef SDL_THREAD_PTH
#undef SDL_THREAD_PTHREAD
#undef SDL_THREAD_PTHREAD_RECURSIVE_MUTEX
@ -260,11 +239,8 @@
/* Enable various timer systems */
#undef SDL_TIMER_BEOS
#undef SDL_TIMER_DC
#undef SDL_TIMER_DUMMY
#undef SDL_TIMER_MINT
#undef SDL_TIMER_NDS
#undef SDL_TIMER_OS2
#undef SDL_TIMER_RISCOS
#undef SDL_TIMER_UNIX
#undef SDL_TIMER_WIN32
@ -273,24 +249,18 @@
/* Enable various video drivers */
#undef SDL_VIDEO_DRIVER_BWINDOW
#undef SDL_VIDEO_DRIVER_COCOA
#undef SDL_VIDEO_DRIVER_DC
#undef SDL_VIDEO_DRIVER_DIRECTFB
#undef SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC
#undef SDL_VIDEO_DRIVER_DUMMY
#undef SDL_VIDEO_DRIVER_FBCON
#undef SDL_VIDEO_DRIVER_GAPI
#undef SDL_VIDEO_DRIVER_GEM
#undef SDL_VIDEO_DRIVER_IPOD
#undef SDL_VIDEO_DRIVER_NANOX
#undef SDL_VIDEO_DRIVER_NDS
#undef SDL_VIDEO_DRIVER_OS2FS
#undef SDL_VIDEO_DRIVER_PHOTON
#undef SDL_VIDEO_DRIVER_QNXGF
#undef SDL_VIDEO_DRIVER_PS2GS
#undef SDL_VIDEO_DRIVER_PS3
#undef SDL_VIDEO_DRIVER_RISCOS
#undef SDL_VIDEO_DRIVER_SVGALIB
#undef SDL_VIDEO_DRIVER_VGL
#undef SDL_VIDEO_DRIVER_WIN32
#undef SDL_VIDEO_DRIVER_WSCONS
#undef SDL_VIDEO_DRIVER_X11
#undef SDL_VIDEO_DRIVER_X11_DYNAMIC
#undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT
@ -304,15 +274,18 @@
#undef SDL_VIDEO_DRIVER_X11_XINPUT
#undef SDL_VIDEO_DRIVER_X11_SCRNSAVER
#undef SDL_VIDEO_DRIVER_X11_XV
#undef SDL_VIDEO_DRIVER_XBIOS
#undef SDL_VIDEO_RENDER_D3D
#undef SDL_VIDEO_RENDER_GDI
#undef SDL_VIDEO_RENDER_OGL
#undef SDL_VIDEO_RENDER_OGL_ES
#undef SDL_VIDEO_RENDER_X11
#undef SDL_VIDEO_RENDER_GAPI
#undef SDL_VIDEO_RENDER_DDRAW
/* Enable OpenGL support */
#undef SDL_VIDEO_OPENGL
#undef SDL_VIDEO_OPENGL_ES
#undef SDL_VIDEO_OPENGL_BGL
#undef SDL_VIDEO_OPENGL_CGL
#undef SDL_VIDEO_OPENGL_GLX
@ -320,6 +293,14 @@
#undef SDL_VIDEO_OPENGL_OSMESA
#undef SDL_VIDEO_OPENGL_OSMESA_DYNAMIC
/* Enable system power support */
#undef SDL_POWER_LINUX
#undef SDL_POWER_WINDOWS
#undef SDL_POWER_MACOSX
#undef SDL_POWER_BEOS
#undef SDL_POWER_NINTENDODS
#undef SDL_POWER_HARDWIRED
/* Enable assembly routines */
#undef SDL_ASSEMBLY_ROUTINES
#undef SDL_ALTIVEC_BLITTERS

27
Externals/SDL/Include/SDL_config_iphoneos.h vendored
View File

@ -25,6 +25,7 @@
#include "SDL_platform.h"
#if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
@ -32,6 +33,14 @@ typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef unsigned long uintptr_t;
#endif /* !_STDINT_H_ && !HAVE_STDINT_H */
#ifdef __LP64__
#define SIZEOF_VOIDP 8
#else
#define SIZEOF_VOIDP 4
#endif
#define SDL_HAS_64BIT_TYPE 1
#define HAVE_ALLOCA_H 1
@ -82,6 +91,18 @@ typedef unsigned long uintptr_t;
#define HAVE_SSCANF 1
#define HAVE_SNPRINTF 1
#define HAVE_VSNPRINTF 1
#define HAVE_CEIL 1
#define HAVE_COPYSIGN 1
#define HAVE_COS 1
#define HAVE_COSF 1
#define HAVE_FABS 1
#define HAVE_FLOOR 1
#define HAVE_LOG 1
#define HAVE_POW 1
#define HAVE_SCALBN 1
#define HAVE_SIN 1
#define HAVE_SINF 1
#define HAVE_SQRT 1
#define HAVE_SIGACTION 1
#define HAVE_SETJMP 1
#define HAVE_NANOSLEEP 1
@ -91,9 +112,6 @@ typedef unsigned long uintptr_t;
/* Enable the dummy audio driver (src/audio/dummy/\*.c) */
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable the stub cdrom driver (src/cdrom/dummy/\*.c) */
#define SDL_CDROM_DISABLED 1
/* Enable the stub haptic driver (src/haptic/dummy/\*.c) */
#define SDL_HAPTIC_DISABLED 1
@ -119,6 +137,9 @@ typedef unsigned long uintptr_t;
#define SDL_VIDEO_OPENGL_ES 1
#define SDL_VIDEO_RENDER_OGL_ES 1
/* Enable system power support */
#define SDL_POWER_MACOSX 1
/* enable iPhone keyboard support */
#define SDL_IPHONE_KEYBOARD 1

48
Externals/SDL/Include/SDL_config_macosx.h vendored
View File

@ -30,6 +30,12 @@
/* This is a set of defines to configure the SDL features */
#ifdef __LP64__
#define SIZEOF_VOIDP 8
#else
#define SIZEOF_VOIDP 4
#endif
#define SDL_HAS_64BIT_TYPE 1
/* Useful headers */
@ -84,30 +90,33 @@
#define HAVE_SSCANF 1
#define HAVE_SNPRINTF 1
#define HAVE_VSNPRINTF 1
#define HAVE_CEIL 1
#define HAVE_COPYSIGN 1
#define HAVE_COS 1
#define HAVE_COSF 1
#define HAVE_FABS 1
#define HAVE_FLOOR 1
#define HAVE_LOG 1
#define HAVE_POW 1
#define HAVE_SCALBN 1
#define HAVE_SIN 1
#define HAVE_SINF 1
#define HAVE_SQRT 1
#define HAVE_SIGACTION 1
#define HAVE_SETJMP 1
#define HAVE_NANOSLEEP 1
/* Enable various audio drivers */
#define SDL_AUDIO_DRIVER_COREAUDIO 1
#define SDL_AUDIO_DRIVER_SNDMGR 1
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable various cdrom drivers */
#define SDL_CDROM_MACOSX 1
/* Enable various input drivers */
#define SDL_JOYSTICK_IOKIT 1
#define SDL_HAPTIC_IOKIT 1
/* Enable various shared object loading systems */
#ifdef __ppc__
/* For Mac OS X 10.2 compatibility */
#define SDL_LOADSO_DLCOMPAT 1
#else
#define SDL_LOADSO_DLOPEN 1
#endif
/* Enable various threading systems */
#define SDL_THREAD_PTHREAD 1
@ -119,11 +128,30 @@
/* Enable various video drivers */
#define SDL_VIDEO_DRIVER_COCOA 1
#define SDL_VIDEO_DRIVER_DUMMY 1
#define SDL_VIDEO_DRIVER_X11 1
#define SDL_VIDEO_DRIVER_X11_DYNAMIC "/usr/X11R6/lib/libX11.6.dylib"
#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT "/usr/X11R6/lib/libXext.6.dylib"
#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR "/usr/X11R6/lib/libXrandr.2.dylib"
#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRENDER "/usr/X11R6/lib/libXrender.1.dylib"
#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT "/usr/X11R6/lib/libXi.6.dylib"
#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS "/usr/X11R6/lib/libXss.6.dylib"
#define SDL_VIDEO_DRIVER_X11_VIDMODE 1
#define SDL_VIDEO_DRIVER_X11_XINERAMA 1
#define SDL_VIDEO_DRIVER_X11_XRANDR 1
#define SDL_VIDEO_DRIVER_X11_XINPUT 1
#define SDL_VIDEO_DRIVER_X11_SCRNSAVER 1
#define SDL_VIDEO_DRIVER_X11_XV 1
#define SDL_VIDEO_RENDER_OGL 1
#define SDL_VIDEO_RENDER_X11 1
/* Enable OpenGL support */
#define SDL_VIDEO_OPENGL 1
#define SDL_VIDEO_OPENGL_CGL 1
#define SDL_VIDEO_RENDER_OGL 1
#define SDL_VIDEO_OPENGL_GLX 1
/* Enable system power support */
#define SDL_POWER_MACOSX 1
/* Enable assembly routines */
#define SDL_ASSEMBLY_ROUTINES 1

11
Externals/SDL/Include/SDL_config_minimal.h vendored
View File

@ -25,10 +25,15 @@
#include "SDL_platform.h"
/* This is the minimal configuration that can be used to build SDL */
/**
* \file SDL_config_minimal.h
*
* This is the minimal configuration that can be used to build SDL.
*/
#include <stdarg.h>
#if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
@ -37,13 +42,11 @@ typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef unsigned int size_t;
typedef unsigned long uintptr_t;
#endif /* !_STDINT_H_ && !HAVE_STDINT_H */
/* Enable the dummy audio driver (src/audio/dummy/\*.c) */
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable the stub cdrom driver (src/cdrom/dummy/\*.c) */
#define SDL_CDROM_DISABLED 1
/* Enable the stub joystick driver (src/joystick/dummy/\*.c) */
#define SDL_JOYSTICK_DISABLED 1

9
Externals/SDL/Include/SDL_config_nintendods.h vendored
View File

@ -27,6 +27,7 @@
/* This is a set of defines to configure the SDL features */
#if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
@ -43,7 +44,7 @@ typedef unsigned long uintptr_t;
#else
typedef unsigned __PTRDIFF_TYPE__ uintptr_t;
#endif
#endif /* !_STDINT_H_ && !HAVE_STDINT_H */
#define SDL_HAS_64BIT_TYPE 1
@ -95,9 +96,6 @@ typedef unsigned __PTRDIFF_TYPE__ uintptr_t;
#define SDL_AUDIO_DRIVER_NDS 1
/*#define SDL_AUDIO_DRIVER_DUMMY 1 TODO: uncomment this later*/
/* DS doesn't have optical media */
#define SDL_CDROM_DISABLED 1
/* Enable various input drivers */
#define SDL_JOYSTICK_NDS 1
/*#define SDL_JOYSTICK_DUMMY 1 TODO: uncomment this later*/
@ -116,4 +114,7 @@ typedef unsigned __PTRDIFF_TYPE__ uintptr_t;
#define SDL_VIDEO_DRIVER_NDS 1
/*#define SDL_VIDEO_DRIVER_DUMMY 1 TODO: uncomment this later*/
/* Enable system power support */
#define SDL_POWER_NINTENDODS 1
#endif /* _SDL_config_nintendods_h */

18
Externals/SDL/Include/SDL_config_win32.h vendored
View File

@ -27,6 +27,7 @@
/* This is a set of defines to configure the SDL features */
#if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
#if defined(__GNUC__) || defined(__DMC__)
#define HAVE_STDINT_H 1
#elif defined(_MSC_VER)
@ -68,6 +69,13 @@ typedef unsigned int size_t;
#endif
typedef unsigned int uintptr_t;
#endif /* __GNUC__ || _MSC_VER */
#endif /* !_STDINT_H_ && !HAVE_STDINT_H */
#ifdef _WIN64
# define SIZEOF_VOIDP 8
#else
# define SIZEOF_VOIDP 4
#endif
#define SDL_HAS_64BIT_TYPE 1
/* Enabled for SDL 1.2 (binary compatibility) */
@ -142,13 +150,6 @@ typedef unsigned int uintptr_t;
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable various cdrom drivers */
#ifdef _WIN32_WCE
#define SDL_CDROM_DISABLED 1
#else
#define SDL_CDROM_WIN32 1
#endif
/* Enable various input drivers */
#ifdef _WIN32_WCE
#define SDL_JOYSTICK_DISABLED 1
@ -185,6 +186,9 @@ typedef unsigned int uintptr_t;
#define SDL_VIDEO_RENDER_OGL 1
#endif
/* Enable system power support */
#define SDL_POWER_WINDOWS 1
/* Enable assembly routines (Win64 doesn't have inline asm) */
#ifndef _WIN64
#define SDL_ASSEMBLY_ROUTINES 1

26
Externals/SDL/Include/SDL_cpuinfo.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_cpuinfo.h
*
* CPU feature detection for SDL
* CPU feature detection for SDL.
*/
#ifndef _SDL_cpuinfo_h
@ -39,35 +39,43 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* This function returns true if the CPU has the RDTSC instruction
/**
* This function returns true if the CPU has the RDTSC instruction.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(void);
/* This function returns true if the CPU has MMX features
/**
* This function returns true if the CPU has MMX features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void);
/* This function returns true if the CPU has MMX Ext. features
/**
* This function returns true if the CPU has MMX Ext.\ features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasMMXExt(void);
/* This function returns true if the CPU has 3DNow features
/**
* This function returns true if the CPU has 3DNow!\ features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void);
/* This function returns true if the CPU has 3DNow! Ext. features
/**
* This function returns true if the CPU has 3DNow!\ Ext.\ features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNowExt(void);
/* This function returns true if the CPU has SSE features
/**
* This function returns true if the CPU has SSE features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void);
/* This function returns true if the CPU has SSE2 features
/**
* This function returns true if the CPU has SSE2 features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void);
/* This function returns true if the CPU has AltiVec features
/**
* This function returns true if the CPU has AltiVec features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void);

35
Externals/SDL/Include/SDL_endian.h vendored
View File

@ -31,9 +31,13 @@
#include "SDL_stdinc.h"
/* The two types of endianness */
/**
* \name The two types of endianness
*/
/*@{*/
#define SDL_LIL_ENDIAN 1234
#define SDL_BIG_ENDIAN 4321
/*@}*/
#ifndef SDL_BYTEORDER /* Not defined in SDL_config.h? */
#if defined(__hppa__) || \
@ -56,10 +60,13 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* Use inline functions for compilers that support them, and static
functions for those that do not. Because these functions become
static for compilers that do not support inline functions, this
header should only be included in files that actually use them.
/**
* \file SDL_endian.h
*
* Uses inline functions for compilers that support them, and static
* functions for those that do not. Because these functions become
* static for compilers that do not support inline functions, this
* header should only be included in files that actually use them.
*/
#if defined(__GNUC__) && defined(__i386__) && \
!(__GNUC__ == 2 && __GNUC_MINOR__ == 95 /* broken gcc version */)
@ -174,9 +181,9 @@ SDL_Swap64(Uint64 x)
Uint32 hi, lo;
/* Separate into high and low 32-bit values and swap them */
lo = (Uint32) (x & 0xFFFFFFFF);
lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
x >>= 32;
hi = (Uint32) (x & 0xFFFFFFFF);
hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
x = SDL_Swap32(lo);
x <<= 32;
x |= SDL_Swap32(hi);
@ -184,9 +191,10 @@ SDL_Swap64(Uint64 x)
}
#endif
#else
/* This is mainly to keep compilers from complaining in SDL code.
If there is no real 64-bit datatype, then compilers will complain about
the fake 64-bit datatype that SDL provides when it compiles user code.
/**
* This is mainly to keep compilers from complaining in SDL code.
* If there is no real 64-bit datatype, then compilers will complain about
* the fake 64-bit datatype that SDL provides when it compiles user code.
*/
#define SDL_Swap64(X) (X)
#endif /* SDL_HAS_64BIT_TYPE */
@ -206,7 +214,11 @@ SDL_SwapFloat(float x)
}
/* Byteswap item from the specified endianness to the native endianness */
/**
* \name Swap to native
* Byteswap item from the specified endianness to the native endianness.
*/
/*@{*/
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define SDL_SwapLE16(X) (X)
#define SDL_SwapLE32(X) (X)
@ -226,6 +238,7 @@ SDL_SwapFloat(float x)
#define SDL_SwapBE64(X) (X)
#define SDL_SwapFloatBE(X) (X)
#endif
/*@}*//*Swap to native*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus

13
Externals/SDL/Include/SDL_error.h vendored
View File

@ -22,7 +22,8 @@
/**
* \file SDL_error.h
* Simple error message routines for SDL
*
* Simple error message routines for SDL.
*/
#ifndef _SDL_error_h
@ -43,7 +44,13 @@ extern DECLSPEC void SDLCALL SDL_SetError(const char *fmt, ...);
extern DECLSPEC char *SDLCALL SDL_GetError(void);
extern DECLSPEC void SDLCALL SDL_ClearError(void);
/* Private error message function - used internally */
/**
* \name Internal error functions
*
* \internal
* Private error message function - used internally.
*/
/*@{*/
#define SDL_OutOfMemory() SDL_Error(SDL_ENOMEM)
#define SDL_Unsupported() SDL_Error(SDL_UNSUPPORTED)
typedef enum
@ -56,7 +63,7 @@ typedef enum
SDL_LASTERROR
} SDL_errorcode;
extern DECLSPEC void SDLCALL SDL_Error(SDL_errorcode code);
/*@}*//*Internal error functions*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus

353
Externals/SDL/Include/SDL_events.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_events.h
*
* Include file for SDL event handling
* Include file for SDL event handling.
*/
#ifndef _SDL_events_h
@ -50,9 +50,7 @@ extern "C" {
#define SDL_PRESSED 1
/**
* \enum SDL_EventType
*
* \brief The types of events that can be delivered
* \brief The types of events that can be delivered.
*/
typedef enum
{
@ -60,6 +58,7 @@ typedef enum
SDL_WINDOWEVENT, /**< Window state change */
SDL_KEYDOWN, /**< Keys pressed */
SDL_KEYUP, /**< Keys released */
SDL_TEXTEDITING, /**< Keyboard text editing (composition) */
SDL_TEXTINPUT, /**< Keyboard text input */
SDL_MOUSEMOTION, /**< Mouse moved */
SDL_MOUSEBUTTONDOWN, /**< Mouse button pressed */
@ -75,28 +74,29 @@ typedef enum
SDL_PROXIMITYIN, /**< Proximity In event */
SDL_PROXIMITYOUT, /**< Proximity Out event */
SDL_EVENT_RESERVED1, /**< Reserved for future use... */
SDL_EVENT_RESERVED2,
SDL_EVENT_RESERVED3,
/* Events SDL_USEREVENT through SDL_MAXEVENTS-1 are for your use */
SDL_EVENT_RESERVED2, /**< Reserved for future use... */
SDL_EVENT_RESERVED3, /**< Reserved for future use... */
/** Events ::SDL_USEREVENT through ::SDL_MAXEVENTS-1 are for your use */
SDL_USEREVENT = 24,
/* This last event is only for bounding internal arrays
It is the number of bits in the event mask datatype -- Uint32
/**
* This last event is only for bounding internal arrays
* It is the number of bits in the event mask datatype -- Uint32
*/
SDL_NUMEVENTS = 32
} SDL_EventType;
/*@{*/
#define SDL_EVENTMASK(X) (1<<(X))
/**
* \enum SDL_EventMask
*
* \brief Predefined event masks
*/
#define SDL_EVENTMASK(X) (1<<(X))
typedef enum
{
SDL_WINDOWEVENTMASK = SDL_EVENTMASK(SDL_WINDOWEVENT),
SDL_KEYDOWNMASK = SDL_EVENTMASK(SDL_KEYDOWN),
SDL_KEYUPMASK = SDL_EVENTMASK(SDL_KEYUP),
SDL_KEYEVENTMASK = SDL_EVENTMASK(SDL_KEYDOWN) | SDL_EVENTMASK(SDL_KEYUP),
SDL_TEXTEDITINGMASK = SDL_EVENTMASK(SDL_TEXTEDITING),
SDL_TEXTINPUTMASK = SDL_EVENTMASK(SDL_TEXTINPUT),
SDL_MOUSEMOTIONMASK = SDL_EVENTMASK(SDL_MOUSEMOTION),
SDL_MOUSEBUTTONDOWNMASK = SDL_EVENTMASK(SDL_MOUSEBUTTONDOWN),
@ -119,57 +119,64 @@ typedef enum
SDL_PROXIMITYOUTMASK = SDL_EVENTMASK(SDL_PROXIMITYOUT)
} SDL_EventMask;
#define SDL_ALLEVENTS 0xFFFFFFFF
/*@}*/
/**
* \struct SDL_WindowEvent
*
* \brief Window state change event data (event.window.*)
*/
typedef struct SDL_WindowEvent
{
Uint8 type; /**< SDL_WINDOWEVENT */
Uint8 event; /**< SDL_WindowEventID */
Uint8 type; /**< ::SDL_WINDOWEVENT */
SDL_WindowID windowID; /**< The associated window */
Uint8 event; /**< ::SDL_WindowEventID */
int data1; /**< event dependent data */
int data2; /**< event dependent data */
SDL_WindowID windowID; /**< The associated window */
} SDL_WindowEvent;
/**
* \struct SDL_KeyboardEvent
*
* \brief Keyboard button event structure (event.key.*)
*/
typedef struct SDL_KeyboardEvent
{
Uint8 type; /**< SDL_KEYDOWN or SDL_KEYUP */
Uint8 which; /**< The keyboard device index */
Uint8 state; /**< SDL_PRESSED or SDL_RELEASED */
SDL_keysym keysym; /**< The key that was pressed or released */
Uint8 type; /**< ::SDL_KEYDOWN or ::SDL_KEYUP */
SDL_WindowID windowID; /**< The window with keyboard focus, if any */
Uint8 which; /**< The keyboard device index */
Uint8 state; /**< ::SDL_PRESSED or ::SDL_RELEASED */
SDL_keysym keysym; /**< The key that was pressed or released */
} SDL_KeyboardEvent;
#define SDL_TEXTEDITINGEVENT_TEXT_SIZE (32)
/**
* \brief Keyboard text editing event structure (event.edit.*)
*/
typedef struct SDL_TextEditingEvent
{
Uint8 type; /**< ::SDL_TEXTEDITING */
char text[SDL_TEXTEDITINGEVENT_TEXT_SIZE]; /**< The editing text */
int start; /**< The start cursor of selected editing text */
int length; /**< The length of selected editing text */
} SDL_TextEditingEvent;
#define SDL_TEXTINPUTEVENT_TEXT_SIZE (32)
/**
* \struct SDL_TextInputEvent
*
* \brief Keyboard text input event structure (event.text.*)
*/
#define SDL_TEXTINPUTEVENT_TEXT_SIZE (32)
typedef struct SDL_TextInputEvent
{
Uint8 type; /**< SDL_TEXTINPUT */
Uint8 type; /**< ::SDL_TEXTINPUT */
SDL_WindowID windowID; /**< The window with keyboard focus, if any */
Uint8 which; /**< The keyboard device index */
char text[SDL_TEXTINPUTEVENT_TEXT_SIZE]; /**< The input text */
SDL_WindowID windowID; /**< The window with keyboard focus, if any */
} SDL_TextInputEvent;
/**
* \struct SDL_MouseMotionEvent
*
* \brief Mouse motion event structure (event.motion.*)
*/
typedef struct SDL_MouseMotionEvent
{
Uint8 type; /**< SDL_MOUSEMOTION */
Uint8 type; /**< ::SDL_MOUSEMOTION */
SDL_WindowID windowID; /**< The window with mouse focus, if any */
Uint8 which; /**< The mouse device index */
Uint8 state; /**< The current button state */
int x; /**< X coordinate, relative to window */
@ -183,60 +190,51 @@ typedef struct SDL_MouseMotionEvent
int cursor; /**< The cursor being used in the event */
int xrel; /**< The relative motion in the X direction */
int yrel; /**< The relative motion in the Y direction */
SDL_WindowID windowID; /**< The window with mouse focus, if any */
} SDL_MouseMotionEvent;
/**
* \struct SDL_MouseButtonEvent
*
* \brief Mouse button event structure (event.button.*)
*/
typedef struct SDL_MouseButtonEvent
{
Uint8 type; /**< SDL_MOUSEBUTTONDOWN or SDL_MOUSEBUTTONUP */
Uint8 type; /**< ::SDL_MOUSEBUTTONDOWN or ::SDL_MOUSEBUTTONUP */
SDL_WindowID windowID; /**< The window with mouse focus, if any */
Uint8 which; /**< The mouse device index */
Uint8 button; /**< The mouse button index */
Uint8 state; /**< SDL_PRESSED or SDL_RELEASED */
Uint8 state; /**< ::SDL_PRESSED or ::SDL_RELEASED */
int x; /**< X coordinate, relative to window */
int y; /**< Y coordinate, relative to window */
SDL_WindowID windowID; /**< The window with mouse focus, if any */
} SDL_MouseButtonEvent;
/**
* \struct SDL_MouseWheelEvent
*
* \brief Mouse wheel event structure (event.wheel.*)
*/
typedef struct SDL_MouseWheelEvent
{
Uint8 type; /**< SDL_MOUSEWHEEL */
Uint8 type; /**< ::SDL_MOUSEWHEEL */
SDL_WindowID windowID; /**< The window with mouse focus, if any */
Uint8 which; /**< The mouse device index */
int x; /**< The amount scrolled horizontally */
int y; /**< The amount scrolled vertically */
SDL_WindowID windowID; /**< The window with mouse focus, if any */
} SDL_MouseWheelEvent;
/**
* \struct SDL_JoyAxisEvent
*
* \brief Joystick axis motion event structure (event.jaxis.*)
*/
typedef struct SDL_JoyAxisEvent
{
Uint8 type; /**< SDL_JOYAXISMOTION */
Uint8 type; /**< ::SDL_JOYAXISMOTION */
Uint8 which; /**< The joystick device index */
Uint8 axis; /**< The joystick axis index */
int value; /**< The axis value (range: -32768 to 32767) */
} SDL_JoyAxisEvent;
/**
* \struct SDL_JoyBallEvent
*
* \brief Joystick trackball motion event structure (event.jball.*)
*/
typedef struct SDL_JoyBallEvent
{
Uint8 type; /**< SDL_JOYBALLMOTION */
Uint8 type; /**< ::SDL_JOYBALLMOTION */
Uint8 which; /**< The joystick device index */
Uint8 ball; /**< The joystick trackball index */
int xrel; /**< The relative motion in the X direction */
@ -244,101 +242,106 @@ typedef struct SDL_JoyBallEvent
} SDL_JoyBallEvent;
/**
* \struct SDL_JoyHatEvent
*
* \brief Joystick hat position change event structure (event.jhat.*)
*/
typedef struct SDL_JoyHatEvent
{
Uint8 type; /**< SDL_JOYHATMOTION */
Uint8 type; /**< ::SDL_JOYHATMOTION */
Uint8 which; /**< The joystick device index */
Uint8 hat; /**< The joystick hat index */
Uint8 value; /**< The hat position value:
SDL_HAT_LEFTUP SDL_HAT_UP SDL_HAT_RIGHTUP
SDL_HAT_LEFT SDL_HAT_CENTERED SDL_HAT_RIGHT
SDL_HAT_LEFTDOWN SDL_HAT_DOWN SDL_HAT_RIGHTDOWN
Note that zero means the POV is centered.
Uint8 value; /**< The hat position value.
* \sa ::SDL_HAT_LEFTUP ::SDL_HAT_UP ::SDL_HAT_RIGHTUP
* \sa ::SDL_HAT_LEFT ::SDL_HAT_CENTERED ::SDL_HAT_RIGHT
* \sa ::SDL_HAT_LEFTDOWN ::SDL_HAT_DOWN ::SDL_HAT_RIGHTDOWN
*
* Note that zero means the POV is centered.
*/
} SDL_JoyHatEvent;
/**
* \struct SDL_JoyButtonEvent
*
* \brief Joystick button event structure (event.jbutton.*)
*/
typedef struct SDL_JoyButtonEvent
{
Uint8 type; /**< SDL_JOYBUTTONDOWN or SDL_JOYBUTTONUP */
Uint8 type; /**< ::SDL_JOYBUTTONDOWN or ::SDL_JOYBUTTONUP */
Uint8 which; /**< The joystick device index */
Uint8 button; /**< The joystick button index */
Uint8 state; /**< SDL_PRESSED or SDL_RELEASED */
Uint8 state; /**< ::SDL_PRESSED or ::SDL_RELEASED */
} SDL_JoyButtonEvent;
/**
* \struct SDL_QuitEvent
*
* \brief The "quit requested" event
*/
typedef struct SDL_QuitEvent
{
Uint8 type; /**< SDL_QUIT */
Uint8 type; /**< ::SDL_QUIT */
} SDL_QuitEvent;
/**
* \struct SDL_UserEvent
*
* \brief A user-defined event type (event.user.*)
*/
typedef struct SDL_UserEvent
{
Uint8 type; /**< SDL_USEREVENT through SDL_NUMEVENTS-1 */
Uint8 type; /**< ::SDL_USEREVENT through ::SDL_NUMEVENTS-1 */
SDL_WindowID windowID; /**< The associated window if any*/
int code; /**< User defined event code */
void *data1; /**< User defined data pointer */
void *data2; /**< User defined data pointer */
SDL_WindowID windowID; /**< The associated window if any*/
} SDL_UserEvent;
/**
* \struct SDL_SysWMEvent
*
* \brief A video driver dependent system event (event.syswm.*)
*
* \note If you want to use this event, you should include SDL_syswm.h
*/
struct SDL_SysWMmsg;
typedef struct SDL_SysWMmsg SDL_SysWMmsg;
/**
* \brief A video driver dependent system event (event.syswm.*)
*
* \note If you want to use this event, you should include SDL_syswm.h.
*/
typedef struct SDL_SysWMEvent
{
Uint8 type; /**< SDL_SYSWMEVENT */
Uint8 type; /**< ::SDL_SYSWMEVENT */
SDL_SysWMmsg *msg; /**< driver dependent data, defined in SDL_syswm.h */
} SDL_SysWMEvent;
/* Typedefs for backwards compatibility */
typedef struct SDL_ActiveEvent
{
Uint8 type;
Uint8 gain;
Uint8 state;
} SDL_ActiveEvent;
typedef struct SDL_ResizeEvent
{
Uint8 type;
int w;
int h;
} SDL_ResizeEvent;
typedef struct SDL_ProximityEvent
{
Uint8 type;
SDL_WindowID windowID; /**< The associated window */
Uint8 which;
int cursor;
int x;
int y;
} SDL_ProximityEvent;
#ifndef SDL_NO_COMPAT
/**
* \addtogroup Compatibility
*/
/*@{*/
/**
* \name Typedefs for backwards compatibility
*/
/*@{*/
typedef struct SDL_ActiveEvent
{
Uint8 type;
Uint8 gain;
Uint8 state;
} SDL_ActiveEvent;
typedef struct SDL_ResizeEvent
{
Uint8 type;
int w;
int h;
} SDL_ResizeEvent;
/*@}*/
/*@}*//*Compatibility*/
#endif
/**
* \union SDL_Event
*
* \brief General event structure
*/
typedef union SDL_Event
@ -346,6 +349,7 @@ typedef union SDL_Event
Uint8 type; /**< Event type, shared with all events */
SDL_WindowEvent window; /**< Window event data */
SDL_KeyboardEvent key; /**< Keyboard event data */
SDL_TextEditingEvent edit; /**< Text editing event data */
SDL_TextInputEvent text; /**< Text input event data */
SDL_MouseMotionEvent motion; /**< Mouse motion event data */
SDL_MouseButtonEvent button; /**< Mouse button event data */
@ -359,119 +363,164 @@ typedef union SDL_Event
SDL_SysWMEvent syswm; /**< System dependent window event data */
SDL_ProximityEvent proximity; /**< Proximity In or Out event */
/* Temporarily here for backwards compatibility */
/** Temporarily here for backwards compatibility */
/*@{*/
#ifndef SDL_NO_COMPAT
SDL_ActiveEvent active;
SDL_ResizeEvent resize;
#endif
/*@}*/
} SDL_Event;
/* Function prototypes */
/* Pumps the event loop, gathering events from the input devices.
This function updates the event queue and internal input device state.
This should only be run in the thread that sets the video mode.
/**
* Pumps the event loop, gathering events from the input devices.
*
* This function updates the event queue and internal input device state.
*
* This should only be run in the thread that sets the video mode.
*/
extern DECLSPEC void SDLCALL SDL_PumpEvents(void);
/* Checks the event queue for messages and optionally returns them.
If 'action' is SDL_ADDEVENT, up to 'numevents' events will be added to
the back of the event queue.
If 'action' is SDL_PEEKEVENT, up to 'numevents' events at the front
of the event queue, matching 'mask', will be returned and will not
be removed from the queue.
If 'action' is SDL_GETEVENT, up to 'numevents' events at the front
of the event queue, matching 'mask', will be returned and will be
removed from the queue.
This function returns the number of events actually stored, or -1
if there was an error. This function is thread-safe.
*/
/*@{*/
typedef enum
{
SDL_ADDEVENT,
SDL_PEEKEVENT,
SDL_GETEVENT
} SDL_eventaction;
/* */
/**
* Checks the event queue for messages and optionally returns them.
*
* If \c action is ::SDL_ADDEVENT, up to \c numevents events will be added to
* the back of the event queue.
*
* If \c action is ::SDL_PEEKEVENT, up to \c numevents events at the front
* of the event queue, matching \c mask, will be returned and will not
* be removed from the queue.
*
* If \c action is ::SDL_GETEVENT, up to \c numevents events at the front
* of the event queue, matching \c mask, will be returned and will be
* removed from the queue.
*
* \return The number of events actually stored, or -1 if there was an error.
*
* This function is thread-safe.
*/
extern DECLSPEC int SDLCALL SDL_PeepEvents(SDL_Event * events, int numevents,
SDL_eventaction action,
Uint32 mask);
/*@}*/
/* Checks to see if certain event types are in the event queue.
/**
* Checks to see if certain event types are in the event queue.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasEvent(Uint32 mask);
/* Polls for currently pending events, and returns 1 if there are any pending
events, or 0 if there are none available. If 'event' is not NULL, the next
event is removed from the queue and stored in that area.
/**
* \brief Polls for currently pending events.
*
* \return 1 if there are any pending events, or 0 if there are none available.
*
* \param event If not NULL, the next event is removed from the queue and
* stored in that area.
*/
extern DECLSPEC int SDLCALL SDL_PollEvent(SDL_Event * event);
/* Waits indefinitely for the next available event, returning 1, or 0 if there
was an error while waiting for events. If 'event' is not NULL, the next
event is removed from the queue and stored in that area.
/**
* \brief Waits indefinitely for the next available event.
*
* \return 1, or 0 if there was an error while waiting for events.
*
* \param event If not NULL, the next event is removed from the queue and
* stored in that area.
*/
extern DECLSPEC int SDLCALL SDL_WaitEvent(SDL_Event * event);
/* Add an event to the event queue.
This function returns 1 on success, 0 if the event was filtered,
or -1 if the event queue was full or there was some other error.
/**
* \brief Waits until the specified timeout (in milliseconds) for the next
* available event.
*
* \return 1, or 0 if there was an error while waiting for events.
*
* \param event If not NULL, the next event is removed from the queue and
* stored in that area.
*/
extern DECLSPEC int SDLCALL SDL_WaitEventTimeout(SDL_Event * event,
int timeout);
/**
* \brief Add an event to the event queue.
*
* \return 1 on success, 0 if the event was filtered, or -1 if the event queue
* was full or there was some other error.
*/
extern DECLSPEC int SDLCALL SDL_PushEvent(SDL_Event * event);
/*
This function sets up a filter to process all events before they
change internal state and are posted to the internal event queue.
The filter is protypted as:
*/
typedef int (SDLCALL * SDL_EventFilter) (void *userdata, SDL_Event * event);
/*
If the filter returns 1, then the event will be added to the internal queue.
If it returns 0, then the event will be dropped from the queue, but the
internal state will still be updated. This allows selective filtering of
dynamically arriving events.
WARNING: Be very careful of what you do in the event filter function, as
it may run in a different thread!
There is one caveat when dealing with the SDL_QUITEVENT event type. The
event filter is only called when the window manager desires to close the
application window. If the event filter returns 1, then the window will
be closed, otherwise the window will remain open if possible.
If the quit event is generated by an interrupt signal, it will bypass the
internal queue and be delivered to the application at the next event poll.
/**
* Sets up a filter to process all events before they change internal state and
* are posted to the internal event queue.
*
* The filter is protypted as:
* \code
* int SDL_EventFilter(void *userdata, SDL_Event * event);
* \endcode
*
* If the filter returns 1, then the event will be added to the internal queue.
* If it returns 0, then the event will be dropped from the queue, but the
* internal state will still be updated. This allows selective filtering of
* dynamically arriving events.
*
* \warning Be very careful of what you do in the event filter function, as
* it may run in a different thread!
*
* There is one caveat when dealing with the ::SDL_QUITEVENT event type. The
* event filter is only called when the window manager desires to close the
* application window. If the event filter returns 1, then the window will
* be closed, otherwise the window will remain open if possible.
*
* If the quit event is generated by an interrupt signal, it will bypass the
* internal queue and be delivered to the application at the next event poll.
*/
extern DECLSPEC void SDLCALL SDL_SetEventFilter(SDL_EventFilter filter,
void *userdata);
/*
Return the current event filter - can be used to "chain" filters.
If there is no event filter set, this function returns SDL_FALSE.
/**
* Return the current event filter - can be used to "chain" filters.
* If there is no event filter set, this function returns SDL_FALSE.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_GetEventFilter(SDL_EventFilter * filter,
void **userdata);
/*
Run the filter function on the current event queue, removing any
events for which the filter returns 0.
/**
* Run the filter function on the current event queue, removing any
* events for which the filter returns 0.
*/
extern DECLSPEC void SDLCALL SDL_FilterEvents(SDL_EventFilter filter,
void *userdata);
/*
This function allows you to set the state of processing certain events.
If 'state' is set to SDL_IGNORE, that event will be automatically dropped
from the event queue and will not event be filtered.
If 'state' is set to SDL_ENABLE, that event will be processed normally.
If 'state' is set to SDL_QUERY, SDL_EventState() will return the
current processing state of the specified event.
*/
/*@{*/
#define SDL_QUERY -1
#define SDL_IGNORE 0
#define SDL_DISABLE 0
#define SDL_ENABLE 1
extern DECLSPEC Uint8 SDLCALL SDL_EventState(Uint8 type, int state);
/**
* This function allows you to set the state of processing certain events.
* - If \c state is set to ::SDL_IGNORE, that event will be automatically
* dropped from the event queue and will not event be filtered.
* - If \c state is set to ::SDL_ENABLE, that event will be processed
* normally.
* - If \c state is set to ::SDL_QUERY, SDL_EventState() will return the
* current processing state of the specified event.
*/
extern DECLSPEC Uint8 SDLCALL SDL_EventState(Uint8 type, int state);
/*@}*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus

531
Externals/SDL/Include/SDL_haptic.h vendored
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100
Externals/SDL/Include/SDL_joystick.h vendored
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@ -40,9 +40,12 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* In order to use these functions, SDL_Init() must have been called
with the SDL_INIT_JOYSTICK flag. This causes SDL to scan the system
for joysticks, and load appropriate drivers.
/**
* \file SDL_joystick.h
*
* In order to use these functions, SDL_Init() must have been called
* with the ::SDL_INIT_JOYSTICK flag. This causes SDL to scan the system
* for joysticks, and load appropriate drivers.
*/
/* The joystick structure used to identify an SDL joystick */
@ -51,87 +54,94 @@ typedef struct _SDL_Joystick SDL_Joystick;
/* Function prototypes */
/*
/**
* Count the number of joysticks attached to the system
*/
extern DECLSPEC int SDLCALL SDL_NumJoysticks(void);
/*
/**
* Get the implementation dependent name of a joystick.
* This can be called before any joysticks are opened.
* If no name can be found, this function returns NULL.
*/
extern DECLSPEC const char *SDLCALL SDL_JoystickName(int device_index);
/*
* Open a joystick for use - the index passed as an argument refers to
* the N'th joystick on the system. This index is the value which will
* identify this joystick in future joystick events.
/**
* Open a joystick for use.
* The index passed as an argument refers tothe N'th joystick on the system.
* This index is the value which will identify this joystick in future joystick
* events.
*
* This function returns a joystick identifier, or NULL if an error occurred.
* \return A joystick identifier, or NULL if an error occurred.
*/
extern DECLSPEC SDL_Joystick *SDLCALL SDL_JoystickOpen(int device_index);
/*
/**
* Returns 1 if the joystick has been opened, or 0 if it has not.
*/
extern DECLSPEC int SDLCALL SDL_JoystickOpened(int device_index);
/*
/**
* Get the device index of an opened joystick.
*/
extern DECLSPEC int SDLCALL SDL_JoystickIndex(SDL_Joystick * joystick);
/*
* Get the number of general axis controls on a joystick
/**
* Get the number of general axis controls on a joystick.
*/
extern DECLSPEC int SDLCALL SDL_JoystickNumAxes(SDL_Joystick * joystick);
/*
* Get the number of trackballs on a joystick
/**
* Get the number of trackballs on a joystick.
*
* Joystick trackballs have only relative motion events associated
* with them and their state cannot be polled.
*/
extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick * joystick);
/*
* Get the number of POV hats on a joystick
/**
* Get the number of POV hats on a joystick.
*/
extern DECLSPEC int SDLCALL SDL_JoystickNumHats(SDL_Joystick * joystick);
/*
* Get the number of buttons on a joystick
/**
* Get the number of buttons on a joystick.
*/
extern DECLSPEC int SDLCALL SDL_JoystickNumButtons(SDL_Joystick * joystick);
/*
/**
* Update the current state of the open joysticks.
*
* This is called automatically by the event loop if any joystick
* events are enabled.
*/
extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void);
/*
/**
* Enable/disable joystick event polling.
*
* If joystick events are disabled, you must call SDL_JoystickUpdate()
* yourself and check the state of the joystick when you want joystick
* information.
* The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE.
*
* The state can be one of ::SDL_QUERY, ::SDL_ENABLE or ::SDL_IGNORE.
*/
extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state);
/*
* Get the current state of an axis control on a joystick
/**
* Get the current state of an axis control on a joystick.
*
* The state is a value ranging from -32768 to 32767.
*
* The axis indices start at index 0.
*/
extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick * joystick,
int axis);
/*
* Get the current state of a POV hat on a joystick
* The return value is one of the following positions:
/**
* \name Hat positions
*/
/*@{*/
#define SDL_HAT_CENTERED 0x00
#define SDL_HAT_UP 0x01
#define SDL_HAT_RIGHT 0x02
@ -141,29 +151,47 @@ extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick * joystick,
#define SDL_HAT_RIGHTDOWN (SDL_HAT_RIGHT|SDL_HAT_DOWN)
#define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP)
#define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN)
/*
/*@}*/
/**
* Get the current state of a POV hat on a joystick.
*
* The hat indices start at index 0.
*
* \return The return value is one of the following positions:
* - ::SDL_HAT_CENTERED
* - ::SDL_HAT_UP
* - ::SDL_HAT_RIGHT
* - ::SDL_HAT_DOWN
* - ::SDL_HAT_LEFT
* - ::SDL_HAT_RIGHTUP
* - ::SDL_HAT_RIGHTDOWN
* - ::SDL_HAT_LEFTUP
* - ::SDL_HAT_LEFTDOWN
*/
extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick * joystick,
int hat);
/*
* Get the ball axis change since the last poll
* This returns 0, or -1 if you passed it invalid parameters.
/**
* Get the ball axis change since the last poll.
*
* \return 0, or -1 if you passed it invalid parameters.
*
* The ball indices start at index 0.
*/
extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick * joystick,
int ball, int *dx, int *dy);
/*
* Get the current state of a button on a joystick
/**
* Get the current state of a button on a joystick.
*
* The button indices start at index 0.
*/
extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick * joystick,
int button);
/*
* Close a joystick previously opened with SDL_JoystickOpen()
/**
* Close a joystick previously opened with SDL_JoystickOpen().
*/
extern DECLSPEC void SDLCALL SDL_JoystickClose(SDL_Joystick * joystick);

68
Externals/SDL/Include/SDL_keyboard.h vendored
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@ -42,8 +42,6 @@ extern "C" {
#endif
/**
* \struct SDL_keysym
*
* \brief The SDL keysym structure, used in key events.
*/
typedef struct SDL_keysym
@ -51,14 +49,12 @@ typedef struct SDL_keysym
SDL_scancode scancode; /**< SDL physical key code - see ::SDL_scancode for details */
SDLKey sym; /**< SDL virtual key code - see ::SDLKey for details */
Uint16 mod; /**< current key modifiers */
Uint32 unicode; /**< OBSOLETE, use SDL_TextInputEvent instead */
Uint32 unicode; /**< \deprecated use SDL_TextInputEvent instead */
} SDL_keysym;
/* Function prototypes */
/**
* \fn int SDL_GetNumKeyboards(void)
*
* \brief Get the number of keyboard input devices available.
*
* \sa SDL_SelectKeyboard()
@ -66,8 +62,6 @@ typedef struct SDL_keysym
extern DECLSPEC int SDLCALL SDL_GetNumKeyboards(void);
/**
* \fn int SDL_SelectKeyboard(int index)
*
* \brief Set the index of the currently selected keyboard.
*
* \return The index of the previously selected keyboard.
@ -79,30 +73,28 @@ extern DECLSPEC int SDLCALL SDL_GetNumKeyboards(void);
extern DECLSPEC int SDLCALL SDL_SelectKeyboard(int index);
/**
* \fn Uint8 *SDL_GetKeyboardState(int *numkeys)
*
* \brief Get a snapshot of the current state of the selected keyboard.
*
* \param numkeys if non-NULL, receives the length of the returned array.
*
* \return An array of key states. Indexes into this array are obtained by using ::SDL_scancode values.
*
* Example:
* \b Example:
* \code
* Uint8 *state = SDL_GetKeyboardState(NULL);
* if ( state[SDL_SCANCODE_RETURN)] ) ... <RETURN> is pressed.
* if ( state[SDL_SCANCODE_RETURN] ) {
* printf("<RETURN> is pressed.\n");
* }
* \endcode
*/
extern DECLSPEC Uint8 *SDLCALL SDL_GetKeyboardState(int *numkeys);
/**
* \fn SDLMod SDL_GetModState(void)
*
* \brief Get the current key modifier state for the selected keyboard.
*/
extern DECLSPEC SDLMod SDLCALL SDL_GetModState(void);
/**
* \fn void SDL_SetModState(SDLMod modstate)
*
* \brief Set the current key modifier state for the selected keyboard.
*
* \note This does not change the keyboard state, only the key modifier flags.
@ -110,9 +102,8 @@ extern DECLSPEC SDLMod SDLCALL SDL_GetModState(void);
extern DECLSPEC void SDLCALL SDL_SetModState(SDLMod modstate);
/**
* \fn SDLKey SDL_GetKeyFromScancode(SDL_scancode scancode)
*
* \brief Get the key code corresponding to the given scancode according to the current keyboard layout.
* \brief Get the key code corresponding to the given scancode according to the
* current keyboard layout.
*
* See ::SDLKey for details.
*
@ -121,9 +112,8 @@ extern DECLSPEC void SDLCALL SDL_SetModState(SDLMod modstate);
extern DECLSPEC SDLKey SDLCALL SDL_GetKeyFromScancode(SDL_scancode scancode);
/**
* \fn SDL_scancode SDL_GetScancodeFromKey(SDLKey key)
*
* \brief Get the scancode corresponding to the given key code according to the current keyboard layout.
* \brief Get the scancode corresponding to the given key code according to the
* current keyboard layout.
*
* See ::SDL_scancode for details.
*
@ -132,11 +122,12 @@ extern DECLSPEC SDLKey SDLCALL SDL_GetKeyFromScancode(SDL_scancode scancode);
extern DECLSPEC SDL_scancode SDLCALL SDL_GetScancodeFromKey(SDLKey key);
/**
* \fn const char *SDL_GetScancodeName(SDL_scancode scancode)
*
* \brief Get a human-readable name for a scancode.
*
* \return A pointer to a UTF-8 string that stays valid at least until the next call to this function. If you need it around any longer, you must copy it. If the scancode doesn't have a name, this function returns "".
* \return A pointer to a UTF-8 string that stays valid at least until the next
* call to this function. If you need it around any longer, you must
* copy it. If the scancode doesn't have a name, this function returns
* an empty string ("").
*
* \sa SDL_scancode
*/
@ -144,16 +135,39 @@ extern DECLSPEC const char *SDLCALL SDL_GetScancodeName(SDL_scancode
scancode);
/**
* \fn const char *SDL_GetKeyName(SDLKey key)
*
* \brief Get a human-readable name for a key.
*
* \return A pointer to a UTF-8 string that stays valid at least until the next call to this function. If you need it around any longer, you must copy it. If the key doesn't have a name, this function returns "".
* \return A pointer to a UTF-8 string that stays valid at least until the next
* call to this function. If you need it around any longer, you must
* copy it. If the key doesn't have a name, this function returns an
* empty string ("").
*
* \sa SDLKey
*/
extern DECLSPEC const char *SDLCALL SDL_GetKeyName(SDLKey key);
/**
* \brief Start accepting Unicode text input events.
*
* \sa SDL_StopTextInput()
* \sa SDL_SetTextInputRect()
*/
extern DECLSPEC void SDLCALL SDL_StartTextInput(void);
/**
* \brief Stop receiving any text input events.
*
* \sa SDL_StartTextInput()
*/
extern DECLSPEC void SDLCALL SDL_StopTextInput(void);
/**
* \brief Set the rectangle used to type Unicode text inputs.
*
* \sa SDL_StartTextInput()
*/
extern DECLSPEC void SDLCALL SDL_SetTextInputRect(SDL_Rect *rect);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus

8
Externals/SDL/Include/SDL_keysym.h vendored
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@ -22,6 +22,8 @@
/**
* \file SDL_keysym.h
*
* Defines constants which identify keyboard keys and modifiers.
*/
#ifndef _SDL_keysym_h
@ -31,8 +33,6 @@
#include "SDL_scancode.h"
/**
* \typedef SDLKey
*
* \brief The SDL virtual key representation.
*
* Values of this type are used to represent keyboard keys using the current
@ -246,9 +246,7 @@ enum
};
/**
* \enum SDLMod
*
* \brief Enumeration of valid key mods (possibly OR'd together)
* \brief Enumeration of valid key mods (possibly OR'd together).
*/
typedef enum
{

16
Externals/SDL/Include/SDL_loadso.h vendored
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@ -26,13 +26,13 @@
* System dependent library loading routines
*
* Some things to keep in mind:
* - These functions only work on C function names. Other languages may
* \li These functions only work on C function names. Other languages may
* have name mangling and intrinsic language support that varies from
* compiler to compiler.
* - Make sure you declare your function pointers with the same calling
* \li Make sure you declare your function pointers with the same calling
* convention as the actual library function. Your code will crash
* mysteriously if you do not do this.
* - Avoid namespace collisions. If you load a symbol from the library,
* \li Avoid namespace collisions. If you load a symbol from the library,
* it is not defined whether or not it goes into the global symbol
* namespace for the application. If it does and it conflicts with
* symbols in your code or other shared libraries, you will not get
@ -53,20 +53,24 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* This function dynamically loads a shared object and returns a pointer
/**
* This function dynamically loads a shared object and returns a pointer
* to the object handle (or NULL if there was an error).
* The 'sofile' parameter is a system dependent name of the object file.
*/
extern DECLSPEC void *SDLCALL SDL_LoadObject(const char *sofile);
/* Given an object handle, this function looks up the address of the
/**
* Given an object handle, this function looks up the address of the
* named function in the shared object and returns it. This address
* is no longer valid after calling SDL_UnloadObject().
*/
extern DECLSPEC void *SDLCALL SDL_LoadFunction(void *handle,
const char *name);
/* Unload a shared object from memory */
/**
* Unload a shared object from memory.
*/
extern DECLSPEC void SDLCALL SDL_UnloadObject(void *handle);
/* Ends C function definitions when using C++ */

36
Externals/SDL/Include/SDL_main.h vendored
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@ -25,7 +25,11 @@
#include "SDL_stdinc.h"
/* Redefine main() on some platforms so that it is called by SDL */
/**
* \file SDL_main.h
*
* Redefine main() on some platforms so that it is called by SDL.
*/
#if defined(__WIN32__) || \
(defined(__MWERKS__) && !defined(__BEOS__)) || \
@ -37,18 +41,26 @@
#define C_LINKAGE
#endif /* __cplusplus */
/* The application's main() function must be called with C linkage,
and should be declared like this:
#ifdef __cplusplus
extern "C"
#endif
int main(int argc, char *argv[])
{
}
/**
* \file SDL_main.h
*
* The application's main() function must be called with C linkage,
* and should be declared like this:
* \code
* #ifdef __cplusplus
* extern "C"
* #endif
* int main(int argc, char *argv[])
* {
* }
* \endcode
*/
#define main SDL_main
/* The prototype for the application's main() function */
/**
* The prototype for the application's main() function
*/
extern C_LINKAGE int SDL_main(int argc, char *argv[]);
@ -62,7 +74,9 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* This can be called to set the application class at startup */
/**
* This can be called to set the application class at startup
*/
extern DECLSPEC int SDLCALL SDL_RegisterApp(char *name, Uint32 style,
void *hInst);
extern DECLSPEC void SDLCALL SDL_UnregisterApp(void);

92
Externals/SDL/Include/SDL_mouse.h vendored
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@ -23,7 +23,7 @@
/**
* \file SDL_mouse.h
*
* Include file for SDL mouse event handling
* Include file for SDL mouse event handling.
*/
#ifndef _SDL_mouse_h
@ -46,8 +46,6 @@ typedef struct SDL_Cursor SDL_Cursor; /* Implementation dependent */
/* Function prototypes */
/**
* \fn int SDL_GetNumMice(void)
*
* \brief Get the number of mouse input devices available.
*
* \sa SDL_SelectMouse()
@ -55,8 +53,6 @@ typedef struct SDL_Cursor SDL_Cursor; /* Implementation dependent */
extern DECLSPEC int SDLCALL SDL_GetNumMice(void);
/**
* \fn char* SDL_GetMouseName(int index)
*
* \brief Gets the name of a mouse with the given index.
*
* \param index is the index of the mouse, which name is to be returned.
@ -66,8 +62,6 @@ extern DECLSPEC int SDLCALL SDL_GetNumMice(void);
extern DECLSPEC char *SDLCALL SDL_GetMouseName(int index);
/**
* \fn int SDL_SelectMouse(int index)
*
* \brief Set the index of the currently selected mouse.
*
* \return The index of the previously selected mouse.
@ -79,16 +73,12 @@ extern DECLSPEC char *SDLCALL SDL_GetMouseName(int index);
extern DECLSPEC int SDLCALL SDL_SelectMouse(int index);
/**
* \fn SDL_WindowID SDL_GetMouseFocusWindow(int index)
*
* \brief Get the window which currently has focus for the currently selected mouse.
* \brief Get the window which currently has focus for the specified mouse.
*/
extern DECLSPEC SDL_WindowID SDLCALL SDL_GetMouseFocusWindow(int index);
/**
* \fn int SDL_SetRelativeMouseMode(int index, SDL_bool enabled)
*
* \brief Set relative mouse mode for the currently selected mouse.
* \brief Set relative mouse mode for the specified mouse.
*
* \param enabled Whether or not to enable relative mode
*
@ -107,18 +97,14 @@ extern DECLSPEC int SDLCALL SDL_SetRelativeMouseMode(int index,
SDL_bool enabled);
/**
* \fn SDL_bool SDL_GetRelativeMouseMode(int index)
*
* \brief Query whether relative mouse mode is enabled for the currently selected mouse.
* \brief Query whether relative mouse mode is enabled for the specified mouse.
*
* \sa SDL_SetRelativeMouseMode()
*/
extern DECLSPEC SDL_bool SDLCALL SDL_GetRelativeMouseMode(int index);
/**
* \fn Uint8 SDL_GetMouseState(int index, int *x, int *y)
*
* \brief Retrieve the current state of the currently selected mouse.
* \brief Retrieve the current state of the specified mouse.
*
* The current button state is returned as a button bitmask, which can
* be tested using the SDL_BUTTON(X) macros, and x and y are set to the
@ -128,9 +114,7 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GetRelativeMouseMode(int index);
extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int index, int *x, int *y);
/**
* \fn Uint8 SDL_GetRelativeMouseState(int index, int *x, int *y)
*
* \brief Retrieve the state of the currently selected mouse.
* \brief Retrieve the state of the specified mouse.
*
* The current button state is returned as a button bitmask, which can
* be tested using the SDL_BUTTON(X) macros, and x and y are set to the
@ -140,8 +124,6 @@ extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int index, int *x,
int *y);
/**
* \fn void SDL_WarpMouseInWindow(SDL_WindowID windowID, int x, int y)
*
* \brief Moves the currently selected mouse to the given position within the window.
*
* \param windowID The window to move the mouse into, or 0 for the current mouse focus
@ -154,19 +136,20 @@ extern DECLSPEC void SDLCALL SDL_WarpMouseInWindow(SDL_WindowID windowID,
int x, int y);
/**
* \fn SDL_Cursor *SDL_CreateCursor (const Uint8 * data, const Uint8 * mask, int w, int h, int hot_x, int hot_y)
*
* \brief Create a cursor for the currently selected mouse, using the
* specified bitmap data and mask (in MSB format).
*
* The cursor width must be a multiple of 8 bits.
*
* The cursor is created in black and white according to the following:
* data mask resulting pixel on screen
* 0 1 White
* 1 1 Black
* 0 0 Transparent
* 1 0 Inverted color if possible, black if not.
* <table>
* <tr><td> data </td><td> mask </td><td> resulting pixel on screen </td></tr>
* <tr><td> 0 </td><td> 1 </td><td> White </td></tr>
* <tr><td> 1 </td><td> 1 </td><td> Black </td></tr>
* <tr><td> 0 </td><td> 0 </td><td> Transparent </td></tr>
* <tr><td> 1 </td><td> 0 </td><td> Inverted color if possible, black
if not. </td></tr>
* </table>
*
* \sa SDL_FreeCursor()
*/
@ -176,8 +159,6 @@ extern DECLSPEC SDL_Cursor *SDLCALL SDL_CreateCursor(const Uint8 * data,
int hot_y);
/**
* \fn void SDL_SetCursor(SDL_Cursor * cursor)
*
* \brief Set the active cursor for the currently selected mouse.
*
* \note The cursor must have been created for the selected mouse.
@ -185,15 +166,11 @@ extern DECLSPEC SDL_Cursor *SDLCALL SDL_CreateCursor(const Uint8 * data,
extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor * cursor);
/**
* \fn SDL_Cursor *SDL_GetCursor(void)
*
* \brief Return the active cursor for the currently selected mouse.
*/
extern DECLSPEC SDL_Cursor *SDLCALL SDL_GetCursor(void);
/**
* \fn void SDL_FreeCursor(SDL_Cursor * cursor)
*
* \brief Frees a cursor created with SDL_CreateCursor().
*
* \sa SDL_CreateCursor()
@ -201,53 +178,54 @@ extern DECLSPEC SDL_Cursor *SDLCALL SDL_GetCursor(void);
extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor * cursor);
/**
* \fn int SDL_ShowCursor(int toggle)
* \brief Toggle whether or not the cursor is shown for the currently selected
* mouse.
*
* \brief Toggle whether or not the cursor is shown for the currently selected mouse.
*
* \param toggle 1 to show the cursor, 0 to hide it, -1 to query the current state.
* \param toggle 1 to show the cursor, 0 to hide it, -1 to query the current
* state.
*
* \return 1 if the cursor is shown, or 0 if the cursor is hidden.
*/
extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle);
/* Used as a mask when testing buttons in buttonstate
Button 1: Left mouse button
Button 2: Middle mouse button
Button 3: Right mouse button
*/
/**
* \fn int SDL_GetCursorsNumber(int index)
*
* \brief Gets the number of cursors a pointing device supports.
*
* Useful for tablet users. Useful only under Windows.
*
* \param index is the index of the pointing device, which number of cursors we
* want to receive.
*
* \return the number of cursors supported by the pointing device. On Windows
* if a device is a tablet it returns a number >=1. Normal mice always return 1.
* if a device is a tablet it returns a number >=1. Normal mice always
* return 1.
*
* On Linux every device reports one cursor.
*/
extern DECLSPEC int SDLCALL SDL_GetCursorsNumber(int index);
/**
* \fn int SDL_GetCurrentCursor(int index)
*
* \brief Returns the index of the current cursor used by a specific pointing
* device. Useful only under Windows.
* device.
*
* Useful only under Windows.
*
* \param index is the index of the pointing device, which cursor index we want
* to receive.
*
* \return the index of the cursor currently used by a specific pointing device.
* Always 0 under Linux. On Windows if the device isn't a tablet it returns 0.
* If the device is the tablet it returns the cursor index.
* 0 - stylus, 1 - eraser, 2 - cursor.
* \return the index of the cursor currently used by a specific pointing
* device. Always 0 under Linux. On Windows if the device isn't a
* tablet it returns 0. If the device is the tablet it returns the
* cursor index. 0 - stylus, 1 - eraser, 2 - cursor.
*/
extern DECLSPEC int SDLCALL SDL_GetCurrentCursor(int index);
/**
* Used as a mask when testing buttons in buttonstate.
* - Button 1: Left mouse button
* - Button 2: Middle mouse button
* - Button 3: Right mouse button
*/
#define SDL_BUTTON(X) (1 << ((X)-1))
#define SDL_BUTTON_LEFT 1
#define SDL_BUTTON_MIDDLE 2

151
Externals/SDL/Include/SDL_mutex.h vendored
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@ -26,7 +26,7 @@
/**
* \file SDL_mutex.h
*
* Functions to provide thread synchronization primitives
* Functions to provide thread synchronization primitives.
*/
#include "SDL_stdinc.h"
@ -40,123 +40,176 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* Synchronization functions which can time out return this value
if they time out.
/**
* Synchronization functions which can time out return this value
* if they time out.
*/
#define SDL_MUTEX_TIMEDOUT 1
/* This is the timeout value which corresponds to never time out */
/**
* This is the timeout value which corresponds to never time out.
*/
#define SDL_MUTEX_MAXWAIT (~(Uint32)0)
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* Mutex functions */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**
* \name Mutex functions
*/
/*@{*/
/* The SDL mutex structure, defined in SDL_mutex.c */
struct SDL_mutex;
typedef struct SDL_mutex SDL_mutex;
/* Create a mutex, initialized unlocked */
/**
* Create a mutex, initialized unlocked.
*/
extern DECLSPEC SDL_mutex *SDLCALL SDL_CreateMutex(void);
/* Lock the mutex (Returns 0, or -1 on error) */
/**
* Lock the mutex.
*
* \return 0, or -1 on error.
*/
#define SDL_LockMutex(m) SDL_mutexP(m)
extern DECLSPEC int SDLCALL SDL_mutexP(SDL_mutex * mutex);
/* Unlock the mutex (Returns 0, or -1 on error)
It is an error to unlock a mutex that has not been locked by
the current thread, and doing so results in undefined behavior.
/**
* Unlock the mutex.
*
* \return 0, or -1 on error.
*
* \warning It is an error to unlock a mutex that has not been locked by
* the current thread, and doing so results in undefined behavior.
*/
#define SDL_UnlockMutex(m) SDL_mutexV(m)
extern DECLSPEC int SDLCALL SDL_mutexV(SDL_mutex * mutex);
/* Destroy a mutex */
/**
* Destroy a mutex.
*/
extern DECLSPEC void SDLCALL SDL_DestroyMutex(SDL_mutex * mutex);
/*@}*//*Mutex functions*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* Semaphore functions */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**
* \name Semaphore functions
*/
/*@{*/
/* The SDL semaphore structure, defined in SDL_sem.c */
struct SDL_semaphore;
typedef struct SDL_semaphore SDL_sem;
/* Create a semaphore, initialized with value, returns NULL on failure. */
/**
* Create a semaphore, initialized with value, returns NULL on failure.
*/
extern DECLSPEC SDL_sem *SDLCALL SDL_CreateSemaphore(Uint32 initial_value);
/* Destroy a semaphore */
/**
* Destroy a semaphore.
*/
extern DECLSPEC void SDLCALL SDL_DestroySemaphore(SDL_sem * sem);
/* This function suspends the calling thread until the semaphore pointed
* to by sem has a positive count. It then atomically decreases the semaphore
* count.
/**
* This function suspends the calling thread until the semaphore pointed
* to by \c sem has a positive count. It then atomically decreases the
* semaphore count.
*/
extern DECLSPEC int SDLCALL SDL_SemWait(SDL_sem * sem);
/* Non-blocking variant of SDL_SemWait(), returns 0 if the wait succeeds,
SDL_MUTEX_TIMEDOUT if the wait would block, and -1 on error.
/**
* Non-blocking variant of SDL_SemWait().
*
* \return 0 if the wait succeeds, ::SDL_MUTEX_TIMEDOUT if the wait would
* block, and -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_SemTryWait(SDL_sem * sem);
/* Variant of SDL_SemWait() with a timeout in milliseconds, returns 0 if
the wait succeeds, SDL_MUTEX_TIMEDOUT if the wait does not succeed in
the allotted time, and -1 on error.
On some platforms this function is implemented by looping with a delay
of 1 ms, and so should be avoided if possible.
/**
* Variant of SDL_SemWait() with a timeout in milliseconds.
*
* \return 0 if the wait succeeds, ::SDL_MUTEX_TIMEDOUT if the wait does not
* succeed in the allotted time, and -1 on error.
*
* \warning On some platforms this function is implemented by looping with a
* delay of 1 ms, and so should be avoided if possible.
*/
extern DECLSPEC int SDLCALL SDL_SemWaitTimeout(SDL_sem * sem, Uint32 ms);
/* Atomically increases the semaphore's count (not blocking), returns 0,
or -1 on error.
/**
* Atomically increases the semaphore's count (not blocking).
*
* \return 0, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_SemPost(SDL_sem * sem);
/* Returns the current count of the semaphore */
/**
* Returns the current count of the semaphore.
*/
extern DECLSPEC Uint32 SDLCALL SDL_SemValue(SDL_sem * sem);
/*@}*//*Semaphore functions*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* Condition variable functions */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**
* \name Condition variable functions
*/
/*@{*/
/* The SDL condition variable structure, defined in SDL_cond.c */
struct SDL_cond;
typedef struct SDL_cond SDL_cond;
/* Create a condition variable */
/**
* Create a condition variable.
*/
extern DECLSPEC SDL_cond *SDLCALL SDL_CreateCond(void);
/* Destroy a condition variable */
/**
* Destroy a condition variable.
*/
extern DECLSPEC void SDLCALL SDL_DestroyCond(SDL_cond * cond);
/* Restart one of the threads that are waiting on the condition variable,
returns 0 or -1 on error.
/**
* Restart one of the threads that are waiting on the condition variable.
*
* \return 0 or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_CondSignal(SDL_cond * cond);
/* Restart all threads that are waiting on the condition variable,
returns 0 or -1 on error.
/**
* Restart all threads that are waiting on the condition variable.
* \return 0 or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_CondBroadcast(SDL_cond * cond);
/* Wait on the condition variable, unlocking the provided mutex.
The mutex must be locked before entering this function!
The mutex is re-locked once the condition variable is signaled.
Returns 0 when it is signaled, or -1 on error.
/**
* Wait on the condition variable, unlocking the provided mutex.
*
* \warning The mutex must be locked before entering this function!
*
* The mutex is re-locked once the condition variable is signaled.
*
* \return 0 when it is signaled, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_CondWait(SDL_cond * cond, SDL_mutex * mut);
/* Waits for at most 'ms' milliseconds, and returns 0 if the condition
variable is signaled, SDL_MUTEX_TIMEDOUT if the condition is not
signaled in the allotted time, and -1 on error.
On some platforms this function is implemented by looping with a delay
of 1 ms, and so should be avoided if possible.
/**
* Waits for at most \c ms milliseconds, and returns 0 if the condition
* variable is signaled, ::SDL_MUTEX_TIMEDOUT if the condition is not
* signaled in the allotted time, and -1 on error.
*
* \warning On some platforms this function is implemented by looping with a
* delay of 1 ms, and so should be avoided if possible.
*/
extern DECLSPEC int SDLCALL SDL_CondWaitTimeout(SDL_cond * cond,
SDL_mutex * mutex, Uint32 ms);
/*@}*//*Condition variable functions*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */

1140
Externals/SDL/Include/SDL_opengl.h vendored
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File diff suppressed because it is too large Load Diff

99
Externals/SDL/Include/SDL_opengles.h vendored
View File

@ -20,10 +20,13 @@
slouken@libsdl.org
*/
/*
This is a simple file to encapsulate the OpenGL ES API headers.
Headers copied from The Kronos Group website.
http://www.khronos.org/opengles/
/**
* \file SDL_opengles.h
*
* This is a simple file to encapsulate the OpenGL ES API headers.
*
* Headers copied from The Kronos Group website.
* http://www.khronos.org/opengles/
*/
#ifndef __gles_h_
@ -48,6 +51,9 @@ extern "C"
#define GL_APIENTRY
#endif
#ifndef GL_API
#define GL_API
#endif /* GL_API */
/*
** License Applicability. Except to the extent portions of this file are
@ -341,6 +347,14 @@ extern "C"
#define GL_SAMPLE_COVERAGE_VALUE 0x80AA
#define GL_SAMPLE_COVERAGE_INVERT 0x80AB
/* OpenGL ES 1.0 defines, they gone in 1.1 and 2.0 */
#ifndef GL_MAX_ELEMENTS_VERTICES
#define GL_MAX_ELEMENTS_VERTICES 0x80E8
#endif /* GL_MAX_ELEMENTS_VERTICES */
#ifndef GL_MAX_ELEMENTS_INDICES
#define GL_MAX_ELEMENTS_INDICES 0x80E9
#endif /* GL_MAX_ELEMENTS_INDICES */
/* GetTextureParameter */
/* GL_TEXTURE_MAG_FILTER */
/* GL_TEXTURE_MIN_FILTER */
@ -655,6 +669,29 @@ extern "C"
#define GL_COORD_REPLACE_OES 0x8862
#endif
/* GL_OES_draw_texture */
#ifndef GL_OES_draw_texture
#define GL_TEXTURE_CROP_RECT_OES 0x8B9D
#endif /* GL_OES_draw_texture */
/* GL_OES_vertex_buffer_object */
#ifndef GL_OES_vertex_buffer_object
#define GL_ARRAY_BUFFER_OES 0x8892
#define GL_ELEMENT_ARRAY_BUFFER_OES 0x8893
#define GL_ARRAY_BUFFER_BINDING_OES 0x8894
#define GL_ELEMENT_ARRAY_BUFFER_BINDING_OES 0x8895
#define GL_VERTEX_ARRAY_BUFFER_BINDING_OES 0x8896
#define GL_NORMAL_ARRAY_BUFFER_BINDING_OES 0x8897
#define GL_COLOR_ARRAY_BUFFER_BINDING_OES 0x8898
#define GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_OES 0x889A
#define GL_STATIC_DRAW_OES 0x88E4
#define GL_DYNAMIC_DRAW_OES 0x88E8
#define GL_WRITE_ONLY_OES 0x88B9
#define GL_BUFFER_SIZE_OES 0x8764
#define GL_BUFFER_USAGE_OES 0x8765
#define GL_BUFFER_ACCESS_OES 0x88BB
#endif /* GL_OES_vertex_buffer_object */
/*************************************************************/
/* Available only in Common profile */
@ -936,11 +973,65 @@ extern "C"
const GLvoid * pointer);
#endif
/* GL_OES_query_matrix */
#ifndef GL_OES_query_matrix
#define GL_OES_query_matrix 1
GL_API GLbitfield GL_APIENTRY glQueryMatrixxOES(GLfixed mantissa[16],
GLint exponent[16]);
#endif /* GL_OES_query_matrix */
/* GL_OES_point_sprite */
#ifndef GL_OES_point_sprite
#define GL_OES_point_sprite 1
#endif
/* GL_OES_draw_texture */
#ifndef GL_OES_draw_texture
#define GL_OES_draw_texture 1
GL_API void GL_APIENTRY glDrawTexsOES(GLshort x, GLshort y, GLshort z,
GLshort width, GLshort height);
GL_API void GL_APIENTRY glDrawTexiOES(GLint x, GLint y, GLint z,
GLint width, GLint height);
GL_API void GL_APIENTRY glDrawTexxOES(GLfixed x, GLfixed y, GLfixed z,
GLfixed width, GLfixed height);
GL_API void GL_APIENTRY glDrawTexsvOES(const GLshort * coords);
GL_API void GL_APIENTRY glDrawTexivOES(const GLint * coords);
GL_API void GL_APIENTRY glDrawTexxvOES(const GLfixed * coords);
GL_API void GL_APIENTRY glDrawTexfOES(GLfloat x, GLfloat y, GLfloat z,
GLfloat width, GLfloat height);
GL_API void GL_APIENTRY glDrawTexfvOES(const GLfloat * coords);
#endif /* GL_OES_draw_texture */
/* GL_OES_single_precision */
#ifndef GL_OES_single_precision
#define GL_OES_single_precision 1
GL_API void GL_APIENTRY glDepthRangefOES(GLclampf zNear, GLclampf zFar);
GL_API void GL_APIENTRY glFrustumfOES(GLfloat left, GLfloat right,
GLfloat bottom, GLfloat top,
GLfloat zNear, GLfloat zFar);
GL_API void GL_APIENTRY glOrthofOES(GLfloat left, GLfloat right,
GLfloat bottom, GLfloat top,
GLfloat zNear, GLfloat zFar);
GL_API void GL_APIENTRY glClipPlanefOES(GLenum plane,
const GLfloat * equation);
GL_API void GL_APIENTRY glGetClipPlanefOES(GLenum pname, GLfloat eqn[4]);
GL_API void GL_APIENTRY glClearDepthfOES(GLclampf depth);
#endif /* GL_OES_single_precision */
/* GL_OES_vertex_buffer_object */
#ifndef GL_OES_vertex_buffer_object
#define GL_OES_vertex_buffer_object 1
GL_API void APIENTRY glBindBufferOES(GLenum, GLuint);
GL_API void APIENTRY glDeleteBuffersOES(GLsizei, const GLuint *);
GL_API void APIENTRY glGenBuffersOES(GLsizei, GLuint *);
GL_API GLboolean APIENTRY glIsBufferOES(GLuint);
GL_API void APIENTRY glBufferDataOES(GLenum, GLsizeiptr, const GLvoid *,
GLenum);
GL_API void APIENTRY glBufferSubDataOES(GLenum, GLintptr, GLsizeiptr,
const GLvoid *);
GL_API void APIENTRY glGetBufferParameterivOES(GLenum, GLenum, GLint *);
#endif /* GL_OES_vertex_buffer_object */
#ifdef __cplusplus
}
#endif

114
Externals/SDL/Include/SDL_pixels.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_pixels.h
*
* Header for the enumerated pixel format definitions
* Header for the enumerated pixel format definitions.
*/
#ifndef _SDL_pixels_h
@ -37,12 +37,19 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* Transparency definitions: These define alpha as the opacity of a surface */
/**
* \name Transparency definitions
*
* These define alpha as the opacity of a surface.
*/
/*@{*/
#define SDL_ALPHA_OPAQUE 255
#define SDL_ALPHA_TRANSPARENT 0
/*@}*/
/** Pixel type. */
enum
{ /* Pixel type */
{
SDL_PIXELTYPE_UNKNOWN,
SDL_PIXELTYPE_INDEX1,
SDL_PIXELTYPE_INDEX4,
@ -57,14 +64,17 @@ enum
SDL_PIXELTYPE_ARRAYF32
};
/** Bitmap pixel order, high bit -> low bit. */
enum
{ /* bitmap pixel order, high bit -> low bit */
{
SDL_BITMAPORDER_NONE,
SDL_BITMAPORDER_4321,
SDL_BITMAPORDER_1234
};
/** Packed component order, high bit -> low bit. */
enum
{ /* packed component order, high bit -> low bit */
{
SDL_PACKEDORDER_NONE,
SDL_PACKEDORDER_XRGB,
SDL_PACKEDORDER_RGBX,
@ -75,8 +85,10 @@ enum
SDL_PACKEDORDER_ABGR,
SDL_PACKEDORDER_BGRA
};
/** Array component order, low byte -> high byte. */
enum
{ /* array component order, low byte -> high byte */
{
SDL_ARRAYORDER_NONE,
SDL_ARRAYORDER_RGB,
SDL_ARRAYORDER_RGBA,
@ -86,8 +98,9 @@ enum
SDL_ARRAYORDER_ABGR
};
/** Packed component layout. */
enum
{ /* Packed component layout */
{
SDL_PACKEDLAYOUT_NONE,
SDL_PACKEDLAYOUT_332,
SDL_PACKEDLAYOUT_4444,
@ -117,6 +130,12 @@ enum
(SDL_PIXELTYPE(format) == SDL_PIXELTYPE_INDEX4) || \
(SDL_PIXELTYPE(format) == SDL_PIXELTYPE_INDEX8))
#define SDL_ISPIXELFORMAT_ALPHA(format) \
((SDL_PIXELORDER(format) == SDL_PACKEDORDER_ARGB) || \
(SDL_PIXELORDER(format) == SDL_PACKEDORDER_RGBA) || \
(SDL_PIXELORDER(format) == SDL_PACKEDORDER_ABGR) || \
(SDL_PIXELORDER(format) == SDL_PACKEDORDER_BGRA))
#define SDL_ISPIXELFORMAT_FOURCC(format) \
((format) && !((format) & 0x80000000))
@ -131,10 +150,10 @@ enum
1, 0),
SDL_PIXELFORMAT_INDEX4LSB =
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_INDEX4, SDL_BITMAPORDER_1234, 0,
2, 0),
4, 0),
SDL_PIXELFORMAT_INDEX4MSB =
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_INDEX4, SDL_BITMAPORDER_4321, 0,
2, 0),
4, 0),
SDL_PIXELFORMAT_INDEX8 =
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_INDEX8, 0, 0, 8, 1),
SDL_PIXELFORMAT_RGB332 =
@ -152,6 +171,9 @@ enum
SDL_PIXELFORMAT_ARGB4444 =
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_ARGB,
SDL_PACKEDLAYOUT_4444, 16, 2),
SDL_PIXELFORMAT_ABGR4444 =
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_ABGR,
SDL_PACKEDLAYOUT_4444, 16, 2),
SDL_PIXELFORMAT_ARGB1555 =
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_ARGB,
SDL_PACKEDLAYOUT_1555, 16, 2),
@ -161,6 +183,9 @@ enum
SDL_PIXELFORMAT_RGB565 =
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_XRGB,
SDL_PACKEDLAYOUT_565, 16, 2),
SDL_PIXELFORMAT_BGR565 =
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_XBGR,
SDL_PACKEDLAYOUT_565, 16, 2),
SDL_PIXELFORMAT_RGB24 =
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_ARRAYU8, SDL_ARRAYORDER_RGB, 0,
24, 3),
@ -189,15 +214,15 @@ enum
SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_ARGB,
SDL_PACKEDLAYOUT_2101010, 32, 4),
SDL_PIXELFORMAT_YV12 = /* Planar mode: Y + V + U (3 planes) */
SDL_PIXELFORMAT_YV12 = /**< Planar mode: Y + V + U (3 planes) */
SDL_DEFINE_PIXELFOURCC('Y', 'V', '1', '2'),
SDL_PIXELFORMAT_IYUV = /* Planar mode: Y + U + V (3 planes) */
SDL_PIXELFORMAT_IYUV = /**< Planar mode: Y + U + V (3 planes) */
SDL_DEFINE_PIXELFOURCC('I', 'Y', 'U', 'V'),
SDL_PIXELFORMAT_YUY2 = /* Packed mode: Y0+U0+Y1+V0 (1 plane) */
SDL_PIXELFORMAT_YUY2 = /**< Packed mode: Y0+U0+Y1+V0 (1 plane) */
SDL_DEFINE_PIXELFOURCC('Y', 'U', 'Y', '2'),
SDL_PIXELFORMAT_UYVY = /* Packed mode: U0+Y0+V0+Y1 (1 plane) */
SDL_PIXELFORMAT_UYVY = /**< Packed mode: U0+Y0+V0+Y1 (1 plane) */
SDL_DEFINE_PIXELFOURCC('U', 'Y', 'V', 'Y'),
SDL_PIXELFORMAT_YVYU = /* Packed mode: Y0+V0+Y1+U0 (1 plane) */
SDL_PIXELFORMAT_YVYU = /**< Packed mode: Y0+V0+Y1+U0 (1 plane) */
SDL_DEFINE_PIXELFOURCC('Y', 'V', 'Y', 'U')
};
@ -229,7 +254,9 @@ struct SDL_Palette
SDL_PaletteWatch *watch;
};
/* Everything in the pixel format structure is read-only */
/**
* \note Everything in the pixel format structure is read-only.
*/
typedef struct SDL_PixelFormat
{
SDL_Palette *palette;
@ -250,8 +277,6 @@ typedef struct SDL_PixelFormat
} SDL_PixelFormat;
/**
* \fn SDL_bool SDL_PixelFormatEnumToMasks(Uint32 format, int *bpp, Uint32 * Rmask, Uint32 * Gmask, Uint32 * Bmask, Uint32 * Amask)
*
* \brief Convert one of the enumerated pixel formats to a bpp and RGBA masks.
*
* \return SDL_TRUE, or SDL_FALSE if the conversion wasn't possible.
@ -266,11 +291,10 @@ extern DECLSPEC SDL_bool SDLCALL SDL_PixelFormatEnumToMasks(Uint32 format,
Uint32 * Amask);
/**
* \fn Uint32 SDL_MasksToPixelFormatEnum(int bpp, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
*
* \brief Convert a bpp and RGBA masks to an enumerated pixel format.
*
* \return The pixel format, or SDL_PixelFormat_Unknown if the conversion wasn't possible.
* \return The pixel format, or ::SDL_PIXELFORMAT_UNKNOWN if the conversion
* wasn't possible.
*
* \sa SDL_PixelFormatEnumToMasks()
*/
@ -281,11 +305,10 @@ extern DECLSPEC Uint32 SDLCALL SDL_MasksToPixelFormatEnum(int bpp,
Uint32 Amask);
/**
* \fn SDL_Palette *SDL_AllocPalette(int ncolors)
* \brief Create a palette structure with the specified number of color
* entries.
*
* \brief Create a palette structure with the specified number of color entries.
*
* \return A new palette, or NULL if there wasn't enough memory
* \return A new palette, or NULL if there wasn't enough memory.
*
* \note The palette entries are initialized to white.
*
@ -294,8 +317,6 @@ extern DECLSPEC Uint32 SDLCALL SDL_MasksToPixelFormatEnum(int bpp,
extern DECLSPEC SDL_Palette *SDLCALL SDL_AllocPalette(int ncolors);
/**
* \fn int SDL_AddPaletteWatch(SDL_Palette *palette, SDL_PaletteChangedFunc callback, void *userdata)
*
* \brief Add a callback function which is called when the palette changes.
*
* \sa SDL_DelPaletteWatch()
@ -305,9 +326,8 @@ extern DECLSPEC int SDLCALL SDL_AddPaletteWatch(SDL_Palette * palette,
callback, void *userdata);
/**
* \fn void SDL_DelPaletteWatch(SDL_Palette *palette, SDL_PaletteChangedFunc callback, void *userdata)
*
* \brief Remove a callback function previously added with SDL_AddPaletteWatch()
* \brief Remove a callback function previously added with
* SDL_AddPaletteWatch().
*
* \sa SDL_AddPaletteWatch()
*/
@ -316,35 +336,28 @@ extern DECLSPEC void SDLCALL SDL_DelPaletteWatch(SDL_Palette * palette,
callback, void *userdata);
/**
* \fn int SDL_SetPaletteColors(SDL_Palette *palette, const SDL_Colors *colors, int firstcolor, int numcolors)
*
* \brief Set a range of colors in a palette.
*
* \param palette The palette to modify
* \param colors An array of colors to copy into the palette
* \param firstcolor The index of the first palette entry to modify
* \param ncolors The number of entries to modify
* \param palette The palette to modify.
* \param colors An array of colors to copy into the palette.
* \param firstcolor The index of the first palette entry to modify.
* \param ncolors The number of entries to modify.
*
* \return 0 on success, or -1 if not all of the colors could be set
* \return 0 on success, or -1 if not all of the colors could be set.
*/
extern DECLSPEC int SDLCALL SDL_SetPaletteColors(SDL_Palette * palette,
const SDL_Color * colors,
int firstcolor, int ncolors);
/**
* \fn void SDL_FreePalette(SDL_Palette *palette)
*
* \brief Free a palette created with SDL_AllocPalette()
* \brief Free a palette created with SDL_AllocPalette().
*
* \sa SDL_AllocPalette()
*/
extern DECLSPEC void SDLCALL SDL_FreePalette(SDL_Palette * palette);
/**
* \fn Uint32 SDL_MapRGB(const SDL_PixelFormat *format,
* Uint8 r, Uint8 g, Uint8 b)
*
* \brief Maps an RGB triple to an opaque pixel value for a given pixel format
* \brief Maps an RGB triple to an opaque pixel value for a given pixel format.
*
* \sa SDL_MapRGBA
*/
@ -352,10 +365,7 @@ extern DECLSPEC Uint32 SDLCALL SDL_MapRGB(const SDL_PixelFormat * format,
Uint8 r, Uint8 g, Uint8 b);
/**
* \fn Uint32 SDL_MapRGBA(const SDL_PixelFormat *fmt,
* Uint8 r, Uint8 g, Uint8 b, Uint8 a)
*
* \brief Maps an RGBA quadruple to a pixel value for a given pixel format
* \brief Maps an RGBA quadruple to a pixel value for a given pixel format.
*
* \sa SDL_MapRGB
*/
@ -364,10 +374,7 @@ extern DECLSPEC Uint32 SDLCALL SDL_MapRGBA(const SDL_PixelFormat * format,
Uint8 a);
/**
* \fn void SDL_GetRGB(Uint32 pixel, const SDL_PixelFormat * format,
* Uint8 * r, Uint8 * g, Uint8 * b)
*
* \brief Maps a pixel value into the RGB components for a given pixel format
* \brief Maps a pixel value into the RGB components for a given pixel format.
*
* \sa SDL_GetRGBA
*/
@ -376,10 +383,7 @@ extern DECLSPEC void SDLCALL SDL_GetRGB(Uint32 pixel,
Uint8 * r, Uint8 * g, Uint8 * b);
/**
* \fn void SDL_GetRGBA(Uint32 pixel, const SDL_PixelFormat * format,
* Uint8 * r, Uint8 * g, Uint8 * b, Uint8 * a)
*
* \brief Maps a pixel value into the RGBA components for a given pixel format
* \brief Maps a pixel value into the RGBA components for a given pixel format.
*
* \sa SDL_GetRGB
*/

36
Externals/SDL/Include/SDL_platform.h vendored
View File

@ -20,7 +20,11 @@
slouken@libsdl.org
*/
/* Try to get a standard set of platform defines */
/**
* \file SDL_platform.h
*
* Try to get a standard set of platform defines.
*/
#ifndef _SDL_platform_h
#define _SDL_platform_h
@ -33,6 +37,10 @@
#undef __BEOS__
#define __BEOS__ 1
#endif
#if defined(__HAIKU__)
#undef __HAIKU__
#define __HAIKU__ 1
#endif
#if defined(bsdi) || defined(__bsdi) || defined(__bsdi__)
#undef __BSDI__
#define __BSDI__ 1
@ -41,7 +49,7 @@
#undef __DREAMCAST__
#define __DREAMCAST__ 1
#endif
#if defined(__FreeBSD__) || defined(__DragonFly__)
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
#undef __FREEBSD__
#define __FREEBSD__ 1
#endif
@ -119,4 +127,28 @@
#define __NINTENDODS__ 1
#endif
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
extern "C" {
/* *INDENT-ON* */
#endif
/**
* \brief Gets the name of the platform.
*/
extern DECLSPEC const char * SDLCALL SDL_GetPlatform (void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
}
/* *INDENT-ON* */
#endif
#include "close_code.h"
#endif /* _SDL_platform_h */
/* vi: set ts=4 sw=4 expandtab: */

33
Externals/SDL/Include/SDL_quit.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_quit.h
*
* Include file for SDL quit event handling
* Include file for SDL quit event handling.
*/
#ifndef _SDL_quit_h
@ -32,22 +32,27 @@
#include "SDL_stdinc.h"
#include "SDL_error.h"
/*
An SDL_QUITEVENT is generated when the user tries to close the application
window. If it is ignored or filtered out, the window will remain open.
If it is not ignored or filtered, it is queued normally and the window
is allowed to close. When the window is closed, screen updates will
complete, but have no effect.
SDL_Init() installs signal handlers for SIGINT (keyboard interrupt)
and SIGTERM (system termination request), if handlers do not already
exist, that generate SDL_QUITEVENT events as well. There is no way
to determine the cause of an SDL_QUITEVENT, but setting a signal
handler in your application will override the default generation of
quit events for that signal.
/**
* \file SDL_quit.h
*
* An ::SDL_QUIT event is generated when the user tries to close the application
* window. If it is ignored or filtered out, the window will remain open.
* If it is not ignored or filtered, it is queued normally and the window
* is allowed to close. When the window is closed, screen updates will
* complete, but have no effect.
*
* SDL_Init() installs signal handlers for SIGINT (keyboard interrupt)
* and SIGTERM (system termination request), if handlers do not already
* exist, that generate ::SDL_QUIT events as well. There is no way
* to determine the cause of an ::SDL_QUIT event, but setting a signal
* handler in your application will override the default generation of
* quit events for that signal.
*
* \sa SDL_Quit()
*/
/* There are no functions directly affecting the quit event */
#define SDL_QuitRequested() \
(SDL_PumpEvents(), SDL_PeepEvents(NULL,0,SDL_PEEKEVENT,SDL_QUITMASK))

18
Externals/SDL/Include/SDL_rect.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_rect.h
*
* Header file for SDL_rect definition and management functions
* Header file for SDL_rect definition and management functions.
*/
#ifndef _SDL_rect_h
@ -43,8 +43,6 @@ extern "C" {
#endif
/**
* \struct SDL_Rect
*
* \brief A rectangle, with the origin at the upper left.
*
* \sa SDL_RectEmpty
@ -60,23 +58,17 @@ typedef struct SDL_Rect
} SDL_Rect;
/**
* \def SDL_RectEmpty()
*
* \brief Returns true if the rectangle has no area.
*/
#define SDL_RectEmpty(X) (((X)->w <= 0) || ((X)->h <= 0))
/**
* \def SDL_RectEquals()
*
* \brief Returns true if the two rectangles are equal.
*/
#define SDL_RectEquals(A, B) (((A)->x == (B)->x) && ((A)->y == (B)->y) && \
((A)->w == (B)->w) && ((A)->h == (B)->h))
/**
* \fn SDL_bool SDL_HasIntersection(const SDL_Rect * A, const SDL_Rect * B);
*
* \brief Determine whether two rectangles intersect.
*
* \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
@ -85,8 +77,6 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasIntersection(const SDL_Rect * A,
const SDL_Rect * B);
/**
* \fn SDL_bool SDL_IntersectRect(const SDL_Rect * A, const SDL_Rect * B, SDL_Rect * result)
*
* \brief Calculate the intersection of two rectangles.
*
* \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
@ -96,17 +86,13 @@ extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRect(const SDL_Rect * A,
SDL_Rect * result);
/**
* \fn void SDL_UnionRect(const SDL_Rect * A, const SDL_Rect * B, SDL_Rect * result)
*
* \brief Calculate the union of two rectangles
* \brief Calculate the union of two rectangles.
*/
extern DECLSPEC void SDLCALL SDL_UnionRect(const SDL_Rect * A,
const SDL_Rect * B,
SDL_Rect * result);
/**
* \fn SDL_bool SDL_IntersectRectAndLine(const SDL_Rect *rect, int *X1, int *Y1, int *X2, int *Y2)
*
* \brief Calculate the intersection of a rectangle and line segment.
*
* \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.

2
Externals/SDL/Include/SDL_revision.h vendored
View File

@ -1 +1 @@
#define SDL_REVISION 4404
#define SDL_REVISION 0

91
Externals/SDL/Include/SDL_rwops.h vendored
View File

@ -41,33 +41,42 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* This is the read/write operation structure -- very basic */
/**
* This is the read/write operation structure -- very basic.
*/
typedef struct SDL_RWops
{
/* Seek to 'offset' relative to whence, one of stdio's whence values:
RW_SEEK_SET, RW_SEEK_CUR, RW_SEEK_END
Returns the final offset in the data source.
/**
* Seek to \c offset relative to \c whence, one of stdio's whence values:
* RW_SEEK_SET, RW_SEEK_CUR, RW_SEEK_END
*
* \return the final offset in the data source.
*/
long (SDLCALL * seek) (struct SDL_RWops * context, long offset,
int whence);
/* Read up to 'num' objects each of size 'objsize' from the data
source to the area pointed at by 'ptr'.
Returns the number of objects read, or 0 at error or end of file.
/**
* Read up to \c num objects each of size \c objsize from the data
* source to the area pointed at by \c ptr.
*
* \return the number of objects read, or 0 at error or end of file.
*/
size_t(SDLCALL * read) (struct SDL_RWops * context, void *ptr,
size_t size, size_t maxnum);
/* Write exactly 'num' objects each of size 'objsize' from the area
pointed at by 'ptr' to data source.
Returns the number of objects written, or 0 at error or end of file.
/**
* Write exactly \c num objects each of size \c objsize from the area
* pointed at by \c ptr to data source.
*
* \return the number of objects written, or 0 at error or end of file.
*/
size_t(SDLCALL * write) (struct SDL_RWops * context, const void *ptr,
size_t size, size_t num);
/* Close and free an allocated SDL_RWops structure.
Returns 0 if successful or -1 on write error when flushing data.
/**
* Close and free an allocated SDL_RWops structure.
*
* \return 0 if successful or -1 on write error when flushing data.
*/
int (SDLCALL * close) (struct SDL_RWops * context);
@ -82,8 +91,8 @@ typedef struct SDL_RWops
struct
{
void *data;
int size;
int left;
size_t size;
size_t left;
} buffer;
} win32io;
#endif
@ -109,7 +118,12 @@ typedef struct SDL_RWops
} SDL_RWops;
/* Functions to create SDL_RWops structures from various data sources */
/**
* \name RWFrom functions
*
* Functions to create SDL_RWops structures from various data sources.
*/
/*@{*/
extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromFile(const char *file,
const char *mode);
@ -123,36 +137,57 @@ extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromMem(void *mem, int size);
extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromConstMem(const void *mem,
int size);
/*@}*//*RWFrom functions*/
extern DECLSPEC SDL_RWops *SDLCALL SDL_AllocRW(void);
extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops * area);
#define RW_SEEK_SET 0 /* Seek from the beginning of data */
#define RW_SEEK_CUR 1 /* Seek relative to current read point */
#define RW_SEEK_END 2 /* Seek relative to the end of data */
#define RW_SEEK_SET 0 /**< Seek from the beginning of data */
#define RW_SEEK_CUR 1 /**< Seek relative to current read point */
#define RW_SEEK_END 2 /**< Seek relative to the end of data */
/* Macros to easily read and write from an SDL_RWops structure */
/**
* \name Read/write macros
*
* Macros to easily read and write from an SDL_RWops structure.
*/
/*@{*/
#define SDL_RWseek(ctx, offset, whence) (ctx)->seek(ctx, offset, whence)
#define SDL_RWtell(ctx) (ctx)->seek(ctx, 0, RW_SEEK_CUR)
#define SDL_RWread(ctx, ptr, size, n) (ctx)->read(ctx, ptr, size, n)
#define SDL_RWwrite(ctx, ptr, size, n) (ctx)->write(ctx, ptr, size, n)
#define SDL_RWclose(ctx) (ctx)->close(ctx)
/*@}*//*Read/write macros*/
/* Read an item of the specified endianness and return in native format */
/**
* \name Read endian functions
*
* Read an item of the specified endianness and return in native format.
*/
/*@{*/
extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops * src);
extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops * src);
extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops * src);
extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops * src);
extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops * src);
extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops * src);
/*@}*//*Read endian functions*/
/* Write an item of native format to the specified endianness */
extern DECLSPEC int SDLCALL SDL_WriteLE16(SDL_RWops * dst, Uint16 value);
extern DECLSPEC int SDLCALL SDL_WriteBE16(SDL_RWops * dst, Uint16 value);
extern DECLSPEC int SDLCALL SDL_WriteLE32(SDL_RWops * dst, Uint32 value);
extern DECLSPEC int SDLCALL SDL_WriteBE32(SDL_RWops * dst, Uint32 value);
extern DECLSPEC int SDLCALL SDL_WriteLE64(SDL_RWops * dst, Uint64 value);
extern DECLSPEC int SDLCALL SDL_WriteBE64(SDL_RWops * dst, Uint64 value);
/**
* \name Write endian functions
*
* Write an item of native format to the specified endianness.
*/
/*@{*/
extern DECLSPEC size_t SDLCALL SDL_WriteLE16(SDL_RWops * dst, Uint16 value);
extern DECLSPEC size_t SDLCALL SDL_WriteBE16(SDL_RWops * dst, Uint16 value);
extern DECLSPEC size_t SDLCALL SDL_WriteLE32(SDL_RWops * dst, Uint32 value);
extern DECLSPEC size_t SDLCALL SDL_WriteBE32(SDL_RWops * dst, Uint32 value);
extern DECLSPEC size_t SDLCALL SDL_WriteLE64(SDL_RWops * dst, Uint64 value);
extern DECLSPEC size_t SDLCALL SDL_WriteBE64(SDL_RWops * dst, Uint64 value);
/*@}*//*Write endian functions*/
/* Ends C function definitions when using C++ */

116
Externals/SDL/Include/SDL_scancode.h vendored
View File

@ -22,6 +22,8 @@
/**
* \file SDL_scancode.h
*
* Defines keyboard scancodes.
*/
#ifndef _SDL_scancode_h
@ -30,8 +32,6 @@
#include "SDL_stdinc.h"
/**
* \enum SDL_scancode
*
* \brief The SDL keyboard scancode representation.
*
* Values of this type are used to represent keyboard keys, among other places
@ -45,7 +45,12 @@ typedef enum
{
SDL_SCANCODE_UNKNOWN = 0,
/* These values are from usage page 0x07 (USB keyboard page) */
/**
* \name Usage page 0x07
*
* These values are from usage page 0x07 (USB keyboard page).
*/
/*@{*/
SDL_SCANCODE_A = 4,
SDL_SCANCODE_B = 5,
@ -95,11 +100,51 @@ typedef enum
SDL_SCANCODE_EQUALS = 46,
SDL_SCANCODE_LEFTBRACKET = 47,
SDL_SCANCODE_RIGHTBRACKET = 48,
SDL_SCANCODE_BACKSLASH = 49, /**< Located at the lower left of the return key on ISO keyboards and at the right end of the QWERTY row on ANSI keyboards. Produces REVERSE SOLIDUS (backslash) and VERTICAL LINE in a US layout, REVERSE SOLIDUS and VERTICAL LINE in a UK Mac layout, NUMBER SIGN and TILDE in a UK Windows layout, DOLLAR SIGN and POUND SIGN in a Swiss German layout, NUMBER SIGN and APOSTROPHE in a German layout, GRAVE ACCENT and POUND SIGN in a French Mac layout, and ASTERISK and MICRO SIGN in a French Windows layout. */
SDL_SCANCODE_NONUSHASH = 50, /**< ISO USB keyboards actually use this code instead of 49 for the same key, but all OSes I've seen treat the two codes identically. So, as an implementor, unless your keyboard generates both of those codes and your OS treats them differently, you should generate SDL_SCANCODE_BACKSLASH instead of this code. As a user, you should not rely on this code because SDL will never generate it with most (all?) keyboards. */
SDL_SCANCODE_BACKSLASH = 49, /**< Located at the lower left of the return
* key on ISO keyboards and at the right end
* of the QWERTY row on ANSI keyboards.
* Produces REVERSE SOLIDUS (backslash) and
* VERTICAL LINE in a US layout, REVERSE
* SOLIDUS and VERTICAL LINE in a UK Mac
* layout, NUMBER SIGN and TILDE in a UK
* Windows layout, DOLLAR SIGN and POUND SIGN
* in a Swiss German layout, NUMBER SIGN and
* APOSTROPHE in a German layout, GRAVE
* ACCENT and POUND SIGN in a French Mac
* layout, and ASTERISK and MICRO SIGN in a
* French Windows layout.
*/
SDL_SCANCODE_NONUSHASH = 50, /**< ISO USB keyboards actually use this code
* instead of 49 for the same key, but all
* OSes I've seen treat the two codes
* identically. So, as an implementor, unless
* your keyboard generates both of those
* codes and your OS treats them differently,
* you should generate SDL_SCANCODE_BACKSLASH
* instead of this code. As a user, you
* should not rely on this code because SDL
* will never generate it with most (all?)
* keyboards.
*/
SDL_SCANCODE_SEMICOLON = 51,
SDL_SCANCODE_APOSTROPHE = 52,
SDL_SCANCODE_GRAVE = 53, /**< Located in the top left corner (on both ANSI and ISO keyboards). Produces GRAVE ACCENT and TILDE in a US Windows layout and in US and UK Mac layouts on ANSI keyboards, GRAVE ACCENT and NOT SIGN in a UK Windows layout, SECTION SIGN and PLUS-MINUS SIGN in US and UK Mac layouts on ISO keyboards, SECTION SIGN and DEGREE SIGN in a Swiss German layout (Mac: only on ISO keyboards), CIRCUMFLEX ACCENT and DEGREE SIGN in a German layout (Mac: only on ISO keyboards), SUPERSCRIPT TWO and TILDE in a French Windows layout, COMMERCIAL AT and NUMBER SIGN in a French Mac layout on ISO keyboards, and LESS-THAN SIGN and GREATER-THAN SIGN in a Swiss German, German, or French Mac layout on ANSI keyboards. */
SDL_SCANCODE_GRAVE = 53, /**< Located in the top left corner (on both ANSI
* and ISO keyboards). Produces GRAVE ACCENT and
* TILDE in a US Windows layout and in US and UK
* Mac layouts on ANSI keyboards, GRAVE ACCENT
* and NOT SIGN in a UK Windows layout, SECTION
* SIGN and PLUS-MINUS SIGN in US and UK Mac
* layouts on ISO keyboards, SECTION SIGN and
* DEGREE SIGN in a Swiss German layout (Mac:
* only on ISO keyboards), CIRCUMFLEX ACCENT and
* DEGREE SIGN in a German layout (Mac: only on
* ISO keyboards), SUPERSCRIPT TWO and TILDE in a
* French Windows layout, COMMERCIAL AT and
* NUMBER SIGN in a French Mac layout on ISO
* keyboards, and LESS-THAN SIGN and GREATER-THAN
* SIGN in a Swiss German, German, or French Mac
* layout on ANSI keyboards.
*/
SDL_SCANCODE_COMMA = 54,
SDL_SCANCODE_PERIOD = 55,
SDL_SCANCODE_SLASH = 56,
@ -122,7 +167,8 @@ typedef enum
SDL_SCANCODE_PRINTSCREEN = 70,
SDL_SCANCODE_SCROLLLOCK = 71,
SDL_SCANCODE_PAUSE = 72,
SDL_SCANCODE_INSERT = 73, /**< insert on PC, help on some Mac keyboards (but does send code 73, not 117) */
SDL_SCANCODE_INSERT = 73, /**< insert on PC, help on some Mac keyboards (but
does send code 73, not 117) */
SDL_SCANCODE_HOME = 74,
SDL_SCANCODE_PAGEUP = 75,
SDL_SCANCODE_DELETE = 76,
@ -133,7 +179,8 @@ typedef enum
SDL_SCANCODE_DOWN = 81,
SDL_SCANCODE_UP = 82,
SDL_SCANCODE_NUMLOCKCLEAR = 83, /**< num lock on PC, clear on Mac keyboards */
SDL_SCANCODE_NUMLOCKCLEAR = 83, /**< num lock on PC, clear on Mac keyboards
*/
SDL_SCANCODE_KP_DIVIDE = 84,
SDL_SCANCODE_KP_MULTIPLY = 85,
SDL_SCANCODE_KP_MINUS = 86,
@ -151,9 +198,20 @@ typedef enum
SDL_SCANCODE_KP_0 = 98,
SDL_SCANCODE_KP_PERIOD = 99,
SDL_SCANCODE_NONUSBACKSLASH = 100, /**< This is the additional key that ISO keyboards have over ANSI ones, located between left shift and Y. Produces GRAVE ACCENT and TILDE in a US or UK Mac layout, REVERSE SOLIDUS (backslash) and VERTICAL LINE in a US or UK Windows layout, and LESS-THAN SIGN and GREATER-THAN SIGN in a Swiss German, German, or French layout. */
SDL_SCANCODE_NONUSBACKSLASH = 100, /**< This is the additional key that ISO
* keyboards have over ANSI ones,
* located between left shift and Y.
* Produces GRAVE ACCENT and TILDE in a
* US or UK Mac layout, REVERSE SOLIDUS
* (backslash) and VERTICAL LINE in a
* US or UK Windows layout, and
* LESS-THAN SIGN and GREATER-THAN SIGN
* in a Swiss German, German, or French
* layout. */
SDL_SCANCODE_APPLICATION = 101, /**< windows contextual menu, compose */
SDL_SCANCODE_POWER = 102, /**< The USB document says this is a status flag, not a physical key - but some Mac keyboards do have a power key. */
SDL_SCANCODE_POWER = 102, /**< The USB document says this is a status flag,
* not a physical key - but some Mac keyboards
* do have a power key. */
SDL_SCANCODE_KP_EQUALS = 103,
SDL_SCANCODE_F13 = 104,
SDL_SCANCODE_F14 = 105,
@ -172,7 +230,7 @@ typedef enum
SDL_SCANCODE_MENU = 118,
SDL_SCANCODE_SELECT = 119,
SDL_SCANCODE_STOP = 120,
SDL_SCANCODE_AGAIN = 121, /*!< redo */
SDL_SCANCODE_AGAIN = 121, /**< redo */
SDL_SCANCODE_UNDO = 122,
SDL_SCANCODE_CUT = 123,
SDL_SCANCODE_COPY = 124,
@ -188,7 +246,8 @@ typedef enum
SDL_SCANCODE_KP_COMMA = 133,
SDL_SCANCODE_KP_EQUALSAS400 = 134,
SDL_SCANCODE_INTERNATIONAL1 = 135, /**< used on Asian keyboards, see footnotes in USB doc */
SDL_SCANCODE_INTERNATIONAL1 = 135, /**< used on Asian keyboards, see
footnotes in USB doc */
SDL_SCANCODE_INTERNATIONAL2 = 136,
SDL_SCANCODE_INTERNATIONAL3 = 137, /**< Yen */
SDL_SCANCODE_INTERNATIONAL4 = 138,
@ -276,9 +335,19 @@ typedef enum
SDL_SCANCODE_RALT = 230, /**< alt gr, option */
SDL_SCANCODE_RGUI = 231, /**< windows, command (apple), meta */
SDL_SCANCODE_MODE = 257, /* I'm not sure if this is really not covered by any of the above, but since there's a special KMOD_MODE for it I'm adding it here */
SDL_SCANCODE_MODE = 257, /**< I'm not sure if this is really not covered
* by any of the above, but since there's a
* special KMOD_MODE for it I'm adding it here
*/
/* These values are mapped from usage page 0x0C (USB consumer page) */
/*@}*//*Usage page 0x07*/
/**
* \name Usage page 0x0C
*
* These values are mapped from usage page 0x0C (USB consumer page).
*/
/*@{*/
SDL_SCANCODE_AUDIONEXT = 258,
SDL_SCANCODE_AUDIOPREV = 259,
@ -298,20 +367,31 @@ typedef enum
SDL_SCANCODE_AC_REFRESH = 273,
SDL_SCANCODE_AC_BOOKMARKS = 274,
/* These are values that Christian Walther added (for mac keyboard?) */
/*@}*//*Usage page 0x0C*/
/**
* \name Walther keys
*
* These are values that Christian Walther added (for mac keyboard?).
*/
/*@{*/
SDL_SCANCODE_BRIGHTNESSDOWN = 275,
SDL_SCANCODE_BRIGHTNESSUP = 276,
SDL_SCANCODE_DISPLAYSWITCH = 277, /**< display mirroring/dual display switch, video mode switch */
SDL_SCANCODE_DISPLAYSWITCH = 277, /**< display mirroring/dual display
switch, video mode switch */
SDL_SCANCODE_KBDILLUMTOGGLE = 278,
SDL_SCANCODE_KBDILLUMDOWN = 279,
SDL_SCANCODE_KBDILLUMUP = 280,
SDL_SCANCODE_EJECT = 281,
SDL_SCANCODE_SLEEP = 282,
/* Add any other keys here */
/*@}*//*Walther keys*/
SDL_NUM_SCANCODES = 512 /**< (not a key, just marks the number of scancodes for array bounds) */
/* Add any other keys here. */
SDL_NUM_SCANCODES = 512 /**< not a key, just marks the number of scancodes
for array bounds */
} SDL_scancode;
#endif /* _SDL_scancode_h */

70
Externals/SDL/Include/SDL_stdinc.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_stdinc.h
*
* This is a general header that includes C language support
* This is a general header that includes C language support.
*/
#ifndef _SDL_stdinc_h
@ -75,61 +75,75 @@
#ifdef HAVE_MATH_H
# include <math.h>
#endif
#ifdef HAVE_ICONV_H
#if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
# include <iconv.h>
#endif
/* The number of elements in an array */
/**
* The number of elements in an array.
*/
#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
#define SDL_TABLESIZE(table) SDL_arraysize(table)
/* Basic data types */
typedef enum SDL_bool
/**
* \name Cast operators
*
* Use proper C++ casts when compiled as C++ to be compatible with the option
* -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
*/
/*@{*/
#ifdef __cplusplus
#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
#define SDL_static_cast(type, expression) static_cast<type>(expression)
#else
#define SDL_reinterpret_cast(type, expression) ((type)(expression))
#define SDL_static_cast(type, expression) ((type)(expression))
#endif
/*@}*//*Cast operators*/
/**
* \name Basic data types
*/
/*@{*/
typedef enum
{
SDL_FALSE = 0,
SDL_TRUE = 1
} SDL_bool;
/**
* \typedef Sint8
* \brief A signed 8-bit integer type.
*/
typedef int8_t Sint8;
/**
* \typedef Uint8
* \brief An unsigned 8-bit integer type.
*/
typedef uint8_t Uint8;
/**
* \typedef Sint16
* \brief A signed 16-bit integer type.
*/
typedef int16_t Sint16;
/**
* \typedef Uint16
* \brief An unsigned 16-bit integer type.
*/
typedef uint16_t Uint16;
/**
* \typedef Sint32
* \brief A signed 32-bit integer type.
*/
typedef int32_t Sint32;
/**
* \typedef Uint32
* \brief An unsigned 32-bit integer type.
*/
typedef uint32_t Uint32;
#ifdef SDL_HAS_64BIT_TYPE
/**
* \typedef Sint64
* \brief A signed 64-bit integer type.
* \warning On platforms without any sort of 64-bit datatype, this is equivalent to Sint32!
*/
typedef int64_t Sint64;
/**
* \typedef Uint64
* \brief An unsigned 64-bit integer type.
* \warning On platforms without any sort of 64-bit datatype, this is equivalent to Uint32!
*/
@ -140,9 +154,12 @@ typedef Sint32 Sint64;
typedef Uint32 Uint64;
#endif
/* Make sure the types really have the right sizes */
/*@}*//*Basic data types*/
#define SDL_COMPILE_TIME_ASSERT(name, x) \
typedef int SDL_dummy_ ## name[(x) * 2 - 1]
/** \cond */
#ifndef DOXYGEN_SHOULD_IGNORE_THIS
SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
@ -157,6 +174,7 @@ SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
#endif
#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
/** \endcond */
/* Check to make sure enums are the size of ints, for structure packing.
For both Watcom C/C++ and Borland C/C++ the compiler option that makes
@ -168,6 +186,7 @@ SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
#pragma enumsalwaysint on
#endif
/** \cond */
#ifndef DOXYGEN_SHOULD_IGNORE_THIS
#ifndef __NINTENDODS__ /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
typedef enum
@ -178,6 +197,7 @@ typedef enum
SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
#endif
#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
/** \endcond */
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
@ -298,7 +318,7 @@ do { \
"cld\n\t" \
"rep ; stosl\n\t" \
: "=&D" (u0), "=&a" (u1), "=&c" (u2) \
: "0" (dst), "1" (val), "2" ((Uint32)(len)) \
: "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, len)) \
: "memory" ); \
} while(0)
#endif
@ -307,8 +327,9 @@ do { \
do { \
unsigned _count = (len); \
unsigned _n = (_count + 3) / 4; \
Uint32 *_p = (Uint32 *)(dst); \
Uint32 *_p = SDL_static_cast(Uint32 *, dst); \
Uint32 _val = (val); \
if (len == 0) break; \
switch (_count % 4) { \
case 0: do { *_p++ = _val; \
case 3: *_p++ = _val; \
@ -337,7 +358,7 @@ do { \
"movsb\n" \
"2:" \
: "=&c" (u0), "=&D" (u1), "=&S" (u2) \
: "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
: "0" (SDL_static_cast(unsigned, len)/4), "q" (len), "1" (dst),"2" (src) \
: "memory" ); \
} while(0)
#endif
@ -363,7 +384,7 @@ do { \
"cld\n\t" \
"rep ; movsl" \
: "=&c" (ecx), "=&D" (edi), "=&S" (esi) \
: "0" ((unsigned)(len)), "1" (dst), "2" (src) \
: "0" (SDL_static_cast(unsigned, len)), "1" (dst), "2" (src) \
: "memory" ); \
} while(0)
#endif
@ -375,8 +396,8 @@ do { \
#define SDL_revcpy(dst, src, len) \
do { \
int u0, u1, u2; \
char *dstp = (char *)(dst); \
char *srcp = (char *)(src); \
char *dstp = SDL_static_cast(char *, dst); \
char *srcp = SDL_static_cast(char *, src); \
int n = (len); \
if ( n >= 4 ) { \
__asm__ __volatile__ ( \
@ -642,7 +663,7 @@ extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen,
const char *fmt, va_list ap);
#endif
#ifndef M_PI
#ifndef HAVE_M_PI
#define M_PI 3.14159265358979323846264338327950288 /* pi */
#endif
@ -724,7 +745,7 @@ extern DECLSPEC double SDLCALL SDL_sqrt(double x);
#define SDL_ICONV_EILSEQ (size_t)-3
#define SDL_ICONV_EINVAL (size_t)-4
#ifdef HAVE_ICONV
#if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
#define SDL_iconv_t iconv_t
#define SDL_iconv_open iconv_open
#define SDL_iconv_close iconv_close
@ -737,8 +758,9 @@ extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
size_t * inbytesleft, char **outbuf,
size_t * outbytesleft);
/* This function converts a string between encodings in one pass, returning a
string that must be freed with SDL_free() or NULL on error.
/**
* This function converts a string between encodings in one pass, returning a
* string that must be freed with SDL_free() or NULL on error.
*/
extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
const char *fromcode,

411
Externals/SDL/Include/SDL_surface.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_surface.h
*
* Header file for SDL_surface definition and management functions
* Header file for ::SDL_surface definition and management functions.
*/
#ifndef _SDL_surface_h
@ -42,20 +42,28 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* These are the currently supported flags for the SDL_surface */
/* Used internally (read-only) */
#define SDL_PREALLOC 0x00000001 /* Surface uses preallocated memory */
#define SDL_RLEACCEL 0x00000002 /* Surface is RLE encoded */
/**
* \name Surface flags
*
* These are the currently supported flags for the ::SDL_surface.
*
* \internal
* Used internally (read-only).
*/
/*@{*/
#define SDL_PREALLOC 0x00000001 /**< Surface uses preallocated memory */
#define SDL_RLEACCEL 0x00000002 /**< Surface is RLE encoded */
/*@}*//*Surface flags*/
/* Evaluates to true if the surface needs to be locked before access */
/**
* Evaluates to true if the surface needs to be locked before access.
*/
#define SDL_MUSTLOCK(S) (((S)->flags & SDL_RLEACCEL) != 0)
/**
* \struct SDL_Surface
* \brief A collection of pixels used in software blitting.
*
* \brief A collection of pixels used in software blitting
*
* \note This structure should be treated as read-only, except for 'pixels',
* \note This structure should be treated as read-only, except for \c pixels,
* which, if not NULL, contains the raw pixel data for the surface.
*/
typedef struct SDL_Surface
@ -66,42 +74,42 @@ typedef struct SDL_Surface
int pitch; /**< Read-only */
void *pixels; /**< Read-write */
/* Application data associated with the surfade */
/** Application data associated with the surfade */
void *userdata; /**< Read-write */
/* information needed for surfaces requiring locks */
/** information needed for surfaces requiring locks */
int locked; /**< Read-only */
void *lock_data; /**< Read-only */
/* clipping information */
/** clipping information */
SDL_Rect clip_rect; /**< Read-only */
/* info for fast blit mapping to other surfaces */
/** info for fast blit mapping to other surfaces */
struct SDL_BlitMap *map; /**< Private */
/* format version, bumped at every change to invalidate blit maps */
/** format version, bumped at every change to invalidate blit maps */
unsigned int format_version; /**< Private */
/* Reference count -- used when freeing surface */
/** Reference count -- used when freeing surface */
int refcount; /**< Read-mostly */
} SDL_Surface;
/**
* \typedef SDL_blit
*
* \brief The type of function used for surface blitting functions
* \brief The type of function used for surface blitting functions.
*/
typedef int (*SDL_blit) (struct SDL_Surface * src, SDL_Rect * srcrect,
struct SDL_Surface * dst, SDL_Rect * dstrect);
/*
* Allocate and free an RGB surface (must be called after SDL_SetVideoMode)
/**
* Allocate and free an RGB surface (must be called after SDL_SetVideoMode).
*
* If the depth is 4 or 8 bits, an empty palette is allocated for the surface.
* If the depth is greater than 8 bits, the pixel format is set using the
* flags '[RGB]mask'.
*
* If the function runs out of memory, it will return NULL.
*
* The 'flags' are obsolete and should be set to 0.
* \param flags The \c flags are obsolete and should be set to 0.
*/
extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurface
(Uint32 flags, int width, int height, int depth,
@ -118,8 +126,6 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceFrom(void *pixels,
extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface * surface);
/**
* \fn int SDL_SetSurfacePalette(SDL_Surface *surface, SDL_Palette *palette)
*
* \brief Set the palette used by a surface.
*
* \return 0, or -1 if the surface format doesn't use a palette.
@ -129,11 +135,12 @@ extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface * surface);
extern DECLSPEC int SDLCALL SDL_SetSurfacePalette(SDL_Surface * surface,
SDL_Palette * palette);
/*
* SDL_LockSurface() sets up a surface for directly accessing the pixels.
/**
* \brief Sets up a surface for directly accessing the pixels.
*
* Between calls to SDL_LockSurface() / SDL_UnlockSurface(), you can write
* to and read from 'surface->pixels', using the pixel format stored in
* 'surface->format'. Once you are done accessing the surface, you should
* to and read from \c surface->pixels, using the pixel format stored in
* \c surface->format. Once you are done accessing the surface, you should
* use SDL_UnlockSurface() to release it.
*
* Not all surfaces require locking. If SDL_MUSTLOCK(surface) evaluates
@ -144,37 +151,51 @@ extern DECLSPEC int SDLCALL SDL_SetSurfacePalette(SDL_Surface * surface,
* pairs, as critical system locks may be held during this time.
*
* SDL_LockSurface() returns 0, or -1 if the surface couldn't be locked.
*
* \sa SDL_UnlockSurface()
*/
extern DECLSPEC int SDLCALL SDL_LockSurface(SDL_Surface * surface);
/** \sa SDL_LockSurface() */
extern DECLSPEC void SDLCALL SDL_UnlockSurface(SDL_Surface * surface);
/*
* Load a surface from a seekable SDL data source (memory or file.)
* If 'freesrc' is non-zero, the source will be closed after being read.
* Returns the new surface, or NULL if there was an error.
/**
* Load a surface from a seekable SDL data source (memory or file).
*
* If \c freesrc is non-zero, the source will be closed after being read.
*
* The new surface should be freed with SDL_FreeSurface().
*
* \return the new surface, or NULL if there was an error.
*/
extern DECLSPEC SDL_Surface *SDLCALL SDL_LoadBMP_RW(SDL_RWops * src,
int freesrc);
/* Convenience macro -- load a surface from a file */
/**
* Load a surface from a file.
*
* Convenience macro.
*/
#define SDL_LoadBMP(file) SDL_LoadBMP_RW(SDL_RWFromFile(file, "rb"), 1)
/*
* Save a surface to a seekable SDL data source (memory or file.)
* If 'freedst' is non-zero, the source will be closed after being written.
* Returns 0 if successful or -1 if there was an error.
/**
* Save a surface to a seekable SDL data source (memory or file).
*
* If \c freedst is non-zero, the source will be closed after being written.
*
* \return 0 if successful or -1 if there was an error.
*/
extern DECLSPEC int SDLCALL SDL_SaveBMP_RW
(SDL_Surface * surface, SDL_RWops * dst, int freedst);
/* Convenience macro -- save a surface to a file */
/**
* Save a surface to a file.
*
* Convenience macro.
*/
#define SDL_SaveBMP(surface, file) \
SDL_SaveBMP_RW(surface, SDL_RWFromFile(file, "wb"), 1)
/*
* \fn int SDL_SetSurfaceRLE(SDL_Surface *surface, int flag)
*
/**
* \brief Sets the RLE acceleration hint for a surface.
*
* \return 0 on success, or -1 if the surface is not valid
@ -185,9 +206,7 @@ extern DECLSPEC int SDLCALL SDL_SaveBMP_RW
extern DECLSPEC int SDLCALL SDL_SetSurfaceRLE(SDL_Surface * surface,
int flag);
/*
* \fn int SDL_SetColorKey(SDL_Surface *surface, Uint32 flag, Uint32 key)
*
/**
* \brief Sets the color key (transparent pixel) in a blittable surface.
*
* \param surface The surface to update
@ -200,16 +219,27 @@ extern DECLSPEC int SDLCALL SDL_SetColorKey(SDL_Surface * surface,
Uint32 flag, Uint32 key);
/**
* \fn int SDL_SetSurfaceColorMod(SDL_Surface *surface, Uint8 r, Uint8 g, Uint8 b)
*
* \brief Set an additional color value used in blit operations
* \brief Sets the color key (transparent pixel) in a blittable surface.
*
* \param surface The surface to update
* \param r The red source color value multiplied into blit operations
* \param g The green source color value multiplied into blit operations
* \param b The blue source color value multiplied into blit operations
* \param key A pointer filled in with the transparent pixel in the native
* surface format
*
* \return 0 on success, or -1 if the surface is not valid
* \return 0 on success, or -1 if the surface is not valid or colorkey is not
* enabled.
*/
extern DECLSPEC int SDLCALL SDL_GetColorKey(SDL_Surface * surface,
Uint32 * key);
/**
* \brief Set an additional color value used in blit operations.
*
* \param surface The surface to update.
* \param r The red source color value multiplied into blit operations.
* \param g The green source color value multiplied into blit operations.
* \param b The blue source color value multiplied into blit operations.
*
* \return 0 on success, or -1 if the surface is not valid.
*
* \sa SDL_GetSurfaceColorMod()
*/
@ -218,16 +248,14 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceColorMod(SDL_Surface * surface,
/**
* \fn int SDL_GetSurfaceColorMod(SDL_Surface *surface, Uint8 *r, Uint8 *g, Uint8 *b)
* \brief Get the additional color value used in blit operations.
*
* \brief Get the additional color value used in blit operations
* \param surface The surface to query.
* \param r A pointer filled in with the source red color value.
* \param g A pointer filled in with the source green color value.
* \param b A pointer filled in with the source blue color value.
*
* \param surface The surface to query
* \param r A pointer filled in with the source red color value
* \param g A pointer filled in with the source green color value
* \param b A pointer filled in with the source blue color value
*
* \return 0 on success, or -1 if the surface is not valid
* \return 0 on success, or -1 if the surface is not valid.
*
* \sa SDL_SetSurfaceColorMod()
*/
@ -236,14 +264,12 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceColorMod(SDL_Surface * surface,
Uint8 * b);
/**
* \fn int SDL_SetSurfaceAlphaMod(SDL_Surface *surface, Uint8 alpha)
* \brief Set an additional alpha value used in blit operations.
*
* \brief Set an additional alpha value used in blit operations
*
* \param surface The surface to update
* \param surface The surface to update.
* \param alpha The source alpha value multiplied into blit operations.
*
* \return 0 on success, or -1 if the surface is not valid
* \return 0 on success, or -1 if the surface is not valid.
*
* \sa SDL_GetSurfaceAlphaMod()
*/
@ -251,14 +277,12 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceAlphaMod(SDL_Surface * surface,
Uint8 alpha);
/**
* \fn int SDL_GetSurfaceAlphaMod(SDL_Surface *surface, Uint8 *alpha)
* \brief Get the additional alpha value used in blit operations.
*
* \brief Get the additional alpha value used in blit operations
* \param surface The surface to query.
* \param alpha A pointer filled in with the source alpha value.
*
* \param surface The surface to query
* \param alpha A pointer filled in with the source alpha value
*
* \return 0 on success, or -1 if the surface is not valid
* \return 0 on success, or -1 if the surface is not valid.
*
* \sa SDL_SetSurfaceAlphaMod()
*/
@ -266,14 +290,12 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceAlphaMod(SDL_Surface * surface,
Uint8 * alpha);
/**
* \fn int SDL_SetSurfaceBlendMode(SDL_Surface *surface, int blendMode)
* \brief Set the blend mode used for blit operations.
*
* \brief Set the blend mode used for blit operations
* \param surface The surface to update.
* \param blendMode ::SDL_BlendMode to use for blit blending.
*
* \param surface The surface to update
* \param blendMode SDL_TextureBlendMode to use for blit blending
*
* \return 0 on success, or -1 if the parameters are not valid
* \return 0 on success, or -1 if the parameters are not valid.
*
* \sa SDL_GetSurfaceBlendMode()
*/
@ -281,14 +303,12 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceBlendMode(SDL_Surface * surface,
int blendMode);
/**
* \fn int SDL_GetSurfaceBlendMode(SDL_Surface *surface, int *blendMode)
* \brief Get the blend mode used for blit operations.
*
* \brief Get the blend mode used for blit operations
* \param surface The surface to query.
* \param blendMode A pointer filled in with the current blend mode.
*
* \param surface The surface to query
* \param blendMode A pointer filled in with the current blend mode
*
* \return 0 on success, or -1 if the surface is not valid
* \return 0 on success, or -1 if the surface is not valid.
*
* \sa SDL_SetSurfaceBlendMode()
*/
@ -296,16 +316,17 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceBlendMode(SDL_Surface * surface,
int *blendMode);
/**
* \fn int SDL_SetSurfaceScaleMode(SDL_Surface *surface, int scaleMode)
* \brief Set the scale mode used for blit operations.
*
* \brief Set the scale mode used for blit operations
* \param surface The surface to update.
* \param scaleMode ::SDL_TextureScaleMode to use for blit scaling.
*
* \param surface The surface to update
* \param scaleMode SDL_TextureScaleMode to use for blit scaling
* \return 0 on success, or -1 if the surface is not valid or the scale mode is
* not supported.
*
* \return 0 on success, or -1 if the surface is not valid or the scale mode is not supported
*
* \note If the scale mode is not supported, the closest supported mode is chosen. Currently only SDL_TEXTURESCALEMODE_FAST is supported on surfaces.
* \note If the scale mode is not supported, the closest supported mode is
* chosen. Currently only ::SDL_TEXTURESCALEMODE_FAST is supported on
* surfaces.
*
* \sa SDL_GetSurfaceScaleMode()
*/
@ -313,24 +334,23 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceScaleMode(SDL_Surface * surface,
int scaleMode);
/**
* \fn int SDL_GetSurfaceScaleMode(SDL_Surface *surface, int *scaleMode)
* \brief Get the scale mode used for blit operations.
*
* \brief Get the scale mode used for blit operations
* \param surface The surface to query.
* \param scaleMode A pointer filled in with the current scale mode.
*
* \param surface The surface to query
* \param scaleMode A pointer filled in with the current scale mode
*
* \return 0 on success, or -1 if the surface is not valid
* \return 0 on success, or -1 if the surface is not valid.
*
* \sa SDL_SetSurfaceScaleMode()
*/
extern DECLSPEC int SDLCALL SDL_GetSurfaceScaleMode(SDL_Surface * surface,
int *scaleMode);
/*
/**
* Sets the clipping rectangle for the destination surface in a blit.
*
* If the clip rectangle is NULL, clipping will be disabled.
*
* If the clip rectangle doesn't intersect the surface, the function will
* return SDL_FALSE and blits will be completely clipped. Otherwise the
* function returns SDL_TRUE and blits to the surface will be clipped to
@ -342,21 +362,22 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceScaleMode(SDL_Surface * surface,
extern DECLSPEC SDL_bool SDLCALL SDL_SetClipRect(SDL_Surface * surface,
const SDL_Rect * rect);
/*
/**
* Gets the clipping rectangle for the destination surface in a blit.
* 'rect' must be a pointer to a valid rectangle which will be filled
*
* \c rect must be a pointer to a valid rectangle which will be filled
* with the correct values.
*/
extern DECLSPEC void SDLCALL SDL_GetClipRect(SDL_Surface * surface,
SDL_Rect * rect);
/*
/**
* Creates a new surface of the specified format, and then copies and maps
* the given surface to it so the blit of the converted surface will be as
* fast as possible. If this function fails, it returns NULL.
*
* The 'flags' parameter is passed to SDL_CreateRGBSurface() and has those
* semantics. You can also pass SDL_RLEACCEL in the flags parameter and
* The \c flags parameter is passed to SDL_CreateRGBSurface() and has those
* semantics. You can also pass ::SDL_RLEACCEL in the flags parameter and
* SDL will try to RLE accelerate colorkey and alpha blits in the resulting
* surface.
*
@ -365,153 +386,175 @@ extern DECLSPEC void SDLCALL SDL_GetClipRect(SDL_Surface * surface,
extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurface
(SDL_Surface * src, SDL_PixelFormat * fmt, Uint32 flags);
/*
* This function draws a point with 'color'
/**
* Draws a point with \c color.
*
* The color should be a pixel of the format used by the surface, and
* can be generated by the SDL_MapRGB() function.
* This function returns 0 on success, or -1 on error.
*
* \return 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_DrawPoint
(SDL_Surface * dst, int x, int y, Uint32 color);
/*
* This function blends a point with an RGBA value
/**
* Blends a point with an RGBA value.
*
* The color should be a pixel of the format used by the surface, and
* can be generated by the SDL_MapRGB() function.
* This function returns 0 on success, or -1 on error.
*
* \return 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_BlendPoint
(SDL_Surface * dst, int x, int y, int blendMode,
Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/*
* This function draws a line with 'color'
/**
* Draws a line with \c color.
*
* The color should be a pixel of the format used by the surface, and
* can be generated by the SDL_MapRGB() function.
* This function returns 0 on success, or -1 on error.
*
* \return 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_DrawLine
(SDL_Surface * dst, int x1, int y1, int x2, int y2, Uint32 color);
/*
* This function blends an RGBA value along a line
* This function returns 0 on success, or -1 on error.
/**
* Blends an RGBA value along a line.
*
* \return 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_BlendLine
(SDL_Surface * dst, int x1, int y1, int x2, int y2, int blendMode,
Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/*
* This function performs a fast fill of the given rectangle with 'color'
/**
* Performs a fast fill of the given rectangle with \c color.
*
* The given rectangle is clipped to the destination surface clip area
* and the final fill rectangle is saved in the passed in pointer.
* If 'dstrect' is NULL, the whole surface will be filled with 'color'
*
* If \c dstrect is NULL, the whole surface will be filled with \c color.
*
* The color should be a pixel of the format used by the surface, and
* can be generated by the SDL_MapRGB() function.
* This function returns 0 on success, or -1 on error.
*
* \return 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_FillRect
(SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color);
/*
* This function blends an RGBA value into the given rectangle.
/**
* Blends an RGBA value into the given rectangle.
*
* The given rectangle is clipped to the destination surface clip area
* and the final fill rectangle is saved in the passed in pointer.
* If 'dstrect' is NULL, the whole surface will be filled with 'color'
* This function returns 0 on success, or -1 on error.
*
* If \c dstrect is NULL, the whole surface will be filled with \c color.
*
* \return This function returns 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_BlendRect
(SDL_Surface * dst, SDL_Rect * dstrect, int blendMode, Uint8 r, Uint8 g,
Uint8 b, Uint8 a);
/*
* This performs a fast blit from the source surface to the destination
* surface. It assumes that the source and destination rectangles are
* the same size. If either 'srcrect' or 'dstrect' are NULL, the entire
* surface (src or dst) is copied. The final blit rectangles are saved
* in 'srcrect' and 'dstrect' after all clipping is performed.
* If the blit is successful, it returns 0, otherwise it returns -1.
/**
* Performs a fast blit from the source surface to the destination surface.
*
* This assumes that the source and destination rectangles are
* the same size. If either \c srcrect or \c dstrect are NULL, the entire
* surface (\c src or \c dst) is copied. The final blit rectangles are saved
* in \c srcrect and \c dstrect after all clipping is performed.
*
* \return If the blit is successful, it returns 0, otherwise it returns -1.
*
* The blit function should not be called on a locked surface.
*
* The blit semantics for surfaces with and without alpha and colorkey
* are defined as follows:
*
* RGBA->RGB:
* SDL_SRCALPHA set:
* alpha-blend (using alpha-channel).
* SDL_SRCCOLORKEY ignored.
* SDL_SRCALPHA not set:
* copy RGB.
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* RGB values of the source colour key, ignoring alpha in the
* comparison.
*
* RGB->RGBA:
* SDL_SRCALPHA set:
* alpha-blend (using the source per-surface alpha value);
* set destination alpha to opaque.
* SDL_SRCALPHA not set:
* copy RGB, set destination alpha to source per-surface alpha value.
* both:
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* source colour key.
*
* RGBA->RGBA:
* SDL_SRCALPHA set:
* alpha-blend (using the source alpha channel) the RGB values;
* leave destination alpha untouched. [Note: is this correct?]
* SDL_SRCCOLORKEY ignored.
* SDL_SRCALPHA not set:
* copy all of RGBA to the destination.
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* RGB values of the source colour key, ignoring alpha in the
* comparison.
*
* RGB->RGB:
* SDL_SRCALPHA set:
* alpha-blend (using the source per-surface alpha value).
* SDL_SRCALPHA not set:
* copy RGB.
* both:
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* source colour key.
* \verbatim
RGBA->RGB:
SDL_SRCALPHA set:
alpha-blend (using alpha-channel).
SDL_SRCCOLORKEY ignored.
SDL_SRCALPHA not set:
copy RGB.
if SDL_SRCCOLORKEY set, only copy the pixels matching the
RGB values of the source colour key, ignoring alpha in the
comparison.
RGB->RGBA:
SDL_SRCALPHA set:
alpha-blend (using the source per-surface alpha value);
set destination alpha to opaque.
SDL_SRCALPHA not set:
copy RGB, set destination alpha to source per-surface alpha value.
both:
if SDL_SRCCOLORKEY set, only copy the pixels matching the
source colour key.
RGBA->RGBA:
SDL_SRCALPHA set:
alpha-blend (using the source alpha channel) the RGB values;
leave destination alpha untouched. [Note: is this correct?]
SDL_SRCCOLORKEY ignored.
SDL_SRCALPHA not set:
copy all of RGBA to the destination.
if SDL_SRCCOLORKEY set, only copy the pixels matching the
RGB values of the source colour key, ignoring alpha in the
comparison.
RGB->RGB:
SDL_SRCALPHA set:
alpha-blend (using the source per-surface alpha value).
SDL_SRCALPHA not set:
copy RGB.
both:
if SDL_SRCCOLORKEY set, only copy the pixels matching the
source colour key.
\endverbatim
*
* If either of the surfaces were in video memory, and the blit returns -2,
* the video memory was lost, so it should be reloaded with artwork and
* re-blitted:
while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) {
while ( SDL_LockSurface(image) < 0 )
Sleep(10);
-- Write image pixels to image->pixels --
SDL_UnlockSurface(image);
}
* @code
* while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) {
* while ( SDL_LockSurface(image) < 0 )
* Sleep(10);
* -- Write image pixels to image->pixels --
* SDL_UnlockSurface(image);
* }
* @endcode
*
* This happens under DirectX 5.0 when the system switches away from your
* fullscreen application. The lock will also fail until you have access
* to the video memory again.
*/
/* You should call SDL_BlitSurface() unless you know exactly how SDL
blitting works internally and how to use the other blit functions.
*
* You should call SDL_BlitSurface() unless you know exactly how SDL
* blitting works internally and how to use the other blit functions.
*/
#define SDL_BlitSurface SDL_UpperBlit
/* This is the public blit function, SDL_BlitSurface(), and it performs
rectangle validation and clipping before passing it to SDL_LowerBlit()
/**
* This is the public blit function, SDL_BlitSurface(), and it performs
* rectangle validation and clipping before passing it to SDL_LowerBlit()
*/
extern DECLSPEC int SDLCALL SDL_UpperBlit
(SDL_Surface * src, SDL_Rect * srcrect,
SDL_Surface * dst, SDL_Rect * dstrect);
/* This is a semi-private blit function and it performs low-level surface
blitting only.
/**
* This is a semi-private blit function and it performs low-level surface
* blitting only.
*/
extern DECLSPEC int SDLCALL SDL_LowerBlit
(SDL_Surface * src, SDL_Rect * srcrect,
SDL_Surface * dst, SDL_Rect * dstrect);
/**
* \fn int SDL_SoftStretch(SDL_Surface * src, const SDL_Rect * srcrect, SDL_Surface * dst, const SDL_Rect * dstrect)
*
* \brief Perform a fast, low quality, stretch blit between two surfaces of the same pixel format.
* \brief Perform a fast, low quality, stretch blit between two surfaces of the
* same pixel format.
*
* \note This function uses a static buffer, and is not thread-safe.
*/

134
Externals/SDL/Include/SDL_syswm.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_syswm.h
*
* Include file for SDL custom system window manager hooks
* Include file for SDL custom system window manager hooks.
*/
#ifndef _SDL_syswm_h
@ -42,10 +42,13 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* Your application has access to a special type of event 'SDL_SYSWMEVENT',
which contains window-manager specific information and arrives whenever
an unhandled window event occurs. This event is ignored by default, but
you can enable it with SDL_EventState()
/**
* \file SDL_syswm.h
*
* Your application has access to a special type of event ::SDL_SYSWMEVENT,
* which contains window-manager specific information and arrives whenever
* an unhandled window event occurs. This event is ignored by default, but
* you can enable it with SDL_EventState().
*/
#ifdef SDL_PROTOTYPES_ONLY
struct SDL_SysWMinfo;
@ -66,13 +69,17 @@ struct SDL_SysWMinfo;
#undef Cursor
#endif
/* These are the various supported subsystems under UNIX */
/**
* These are the various supported subsystems under UNIX.
*/
typedef enum
{
SDL_SYSWM_X11
} SDL_SYSWM_TYPE;
/* The UNIX custom event structure */
/**
* The UNIX custom event structure.
*/
struct SDL_SysWMmsg
{
SDL_version version;
@ -83,9 +90,11 @@ struct SDL_SysWMmsg
} event;
};
/* The UNIX custom window manager information structure.
When this structure is returned, it holds information about which
low level system it is using, and will be one of SDL_SYSWM_TYPE.
/**
* The UNIX custom window manager information structure.
*
* When this structure is returned, it holds information about which
* low level system it is using, and will be one of SDL_SYSWM_TYPE.
*/
struct SDL_SysWMinfo
{
@ -95,92 +104,97 @@ struct SDL_SysWMinfo
{
struct
{
Display *display; /* The X11 display */
Window window; /* The X11 display window */
/* These locking functions should be called around
any X11 functions using the display variable.
They lock the event thread, so should not be
called around event functions or from event filters.
Display *display; /**< The X11 display */
Window window; /**< The X11 display window */
/**
* These locking functions should be called around
* any X11 functions using the display variable.
* They lock the event thread, so should not be
* called around event functions or from event filters.
*/
/*@{*/
void (*lock_func) (void);
void (*unlock_func) (void);
/*@}*/
/* Introduced in SDL 1.0.2 */
Window fswindow; /* The X11 fullscreen window */
Window wmwindow; /* The X11 managed input window */
/**
* Introduced in SDL 1.0.2.
*/
/*@{*/
Window fswindow; /**< The X11 fullscreen window */
Window wmwindow; /**< The X11 managed input window */
/*@}*/
} x11;
} info;
};
#elif defined(SDL_VIDEO_DRIVER_NANOX)
#include <microwin/nano-X.h>
/* The generic custom event structure */
struct SDL_SysWMmsg
{
SDL_version version;
int data;
};
/* The windows custom window manager information structure */
struct SDL_SysWMinfo
{
SDL_version version;
GR_WINDOW_ID window; /* The display window */
};
#elif defined(SDL_VIDEO_DRIVER_WIN32)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
/* The windows custom event structure */
/**
* The windows custom event structure.
*/
struct SDL_SysWMmsg
{
SDL_version version;
HWND hwnd; /* The window for the message */
UINT msg; /* The type of message */
WPARAM wParam; /* WORD message parameter */
LPARAM lParam; /* LONG message parameter */
HWND hwnd; /**< The window for the message */
UINT msg; /**< The type of message */
WPARAM wParam; /**< WORD message parameter */
LPARAM lParam; /**< LONG message parameter */
};
/* The windows custom window manager information structure */
/**
* The windows custom window manager information structure.
*/
struct SDL_SysWMinfo
{
SDL_version version;
HWND window; /* The Win32 display window */
HWND window; /**< The Win32 display window */
};
#elif defined(SDL_VIDEO_DRIVER_RISCOS)
/* RISC OS custom event structure */
/**
* RISC OS custom event structure.
*/
struct SDL_SysWMmsg
{
SDL_version version;
int eventCode; /* The window for the message */
int eventCode; /**< The window for the message */
int pollBlock[64];
};
/* The RISC OS custom window manager information structure */
/**
* The RISC OS custom window manager information structure.
*/
struct SDL_SysWMinfo
{
SDL_version version;
int wimpVersion; /* Wimp version running under */
int taskHandle; /* The RISC OS task handle */
int window; /* The RISC OS display window */
int wimpVersion; /**< Wimp version running under */
int taskHandle; /**< The RISC OS task handle */
int window; /**< The RISC OS display window */
};
#elif defined(SDL_VIDEO_DRIVER_PHOTON)
#elif defined(SDL_VIDEO_DRIVER_PHOTON) || defined(SDL_VIDEO_DRIVER_QNXGF)
#include <sys/neutrino.h>
#if defined(SDL_VIDEO_OPENGL_ES)
#include <gf/gf.h>
#endif /* SDL_VIDEO_OPENGL_ES */
#include <Ph.h>
/* The QNX custom event structure */
/**
* The QNX custom event structure.
*/
struct SDL_SysWMmsg
{
SDL_version version;
int data;
};
/* The QNX custom window manager information structure */
/**
* The QNX Photon custom window manager information structure.
*/
struct SDL_SysWMinfo
{
SDL_version version;
@ -189,14 +203,18 @@ struct SDL_SysWMinfo
#else
/* The generic custom event structure */
/**
* The generic custom event structure.
*/
struct SDL_SysWMmsg
{
SDL_version version;
int data;
};
/* The generic custom window manager information structure */
/**
* The generic custom window manager information structure.
*/
struct SDL_SysWMinfo
{
SDL_version version;
@ -211,14 +229,14 @@ typedef struct SDL_SysWMinfo SDL_SysWMinfo;
/* Function prototypes */
/**
* \fn SDL_bool SDL_GetWindowWMInfo (SDL_WindowID windowID, SDL_SysWMinfo * info)
*
* \brief This function allows access to driver-dependent window information.
*
* \param windowID The window about which information is being requested
* \param info This structure must be initialized with the SDL version, and is then filled in with information about the given window.
* \param info This structure must be initialized with the SDL version, and is
* then filled in with information about the given window.
*
* \return SDL_TRUE if the function is implemented and the version member of the 'info' struct is valid, SDL_FALSE otherwise.
* \return SDL_TRUE if the function is implemented and the version member of
* the \c info struct is valid, SDL_FALSE otherwise.
*
* You typically use this function like this:
* \code

94
Externals/SDL/Include/SDL_thread.h vendored
View File

@ -26,7 +26,7 @@
/**
* \file SDL_thread.h
*
* Header for the SDL thread management routines
* Header for the SDL thread management routines.
*/
#include "SDL_stdinc.h"
@ -47,31 +47,33 @@ extern "C" {
struct SDL_Thread;
typedef struct SDL_Thread SDL_Thread;
/* Create a thread */
#if (defined(__WIN32__) && !defined(HAVE_LIBC)) || defined(__OS2__)
/*
We compile SDL into a DLL on OS/2. This means, that it's the DLL which
creates a new thread for the calling process with the SDL_CreateThread()
API. There is a problem with this, that only the RTL of the SDL.DLL will
be initialized for those threads, and not the RTL of the calling application!
To solve this, we make a little hack here.
We'll always use the caller's _beginthread() and _endthread() APIs to
start a new thread. This way, if it's the SDL.DLL which uses this API,
then the RTL of SDL.DLL will be used to create the new thread, and if it's
the application, then the RTL of the application will be used.
So, in short:
Always use the _beginthread() and _endthread() of the calling runtime library!
#if defined(__WIN32__) && !defined(HAVE_LIBC)
/**
* \file SDL_thread.h
*
* We compile SDL into a DLL. This means, that it's the DLL which
* creates a new thread for the calling process with the SDL_CreateThread()
* API. There is a problem with this, that only the RTL of the SDL.DLL will
* be initialized for those threads, and not the RTL of the calling
* application!
*
* To solve this, we make a little hack here.
*
* We'll always use the caller's _beginthread() and _endthread() APIs to
* start a new thread. This way, if it's the SDL.DLL which uses this API,
* then the RTL of SDL.DLL will be used to create the new thread, and if it's
* the application, then the RTL of the application will be used.
*
* So, in short:
* Always use the _beginthread() and _endthread() of the calling runtime
* library!
*/
#define SDL_PASSED_BEGINTHREAD_ENDTHREAD
#ifndef _WIN32_WCE
#include <process.h> /* This has _beginthread() and _endthread() defined! */
#endif
#ifdef __OS2__
typedef int (*pfnSDL_CurrentBeginThread) (void (*func) (void *), void *,
unsigned, void *arg);
typedef void (*pfnSDL_CurrentEndThread) (void);
#elif __GNUC__
#ifdef __GNUC__
typedef unsigned long (__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned,
unsigned
(__stdcall *
@ -91,42 +93,66 @@ typedef uintptr_t(__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned,
typedef void (__cdecl * pfnSDL_CurrentEndThread) (unsigned code);
#endif
/**
* Create a thread.
*/
extern DECLSPEC SDL_Thread *SDLCALL
SDL_CreateThread(int (SDLCALL * f) (void *), void *data,
pfnSDL_CurrentBeginThread pfnBeginThread,
pfnSDL_CurrentEndThread pfnEndThread);
#ifdef __OS2__
#define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthread, _endthread)
#elif defined(_WIN32_WCE)
#if defined(_WIN32_WCE)
/**
* Create a thread.
*/
#define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, NULL, NULL)
#else
/**
* Create a thread.
*/
#define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthreadex, _endthreadex)
#endif
#else
/**
* Create a thread.
*/
extern DECLSPEC SDL_Thread *SDLCALL
SDL_CreateThread(int (SDLCALL * fn) (void *), void *data);
#endif
/* Get the 32-bit thread identifier for the current thread */
/**
* Get the 32-bit thread identifier for the current thread.
*/
extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void);
/* Get the 32-bit thread identifier for the specified thread,
equivalent to SDL_ThreadID() if the specified thread is NULL.
/**
* Get the 32-bit thread identifier for the specified thread.
*
* Equivalent to SDL_ThreadID() if the specified thread is NULL.
*/
extern DECLSPEC Uint32 SDLCALL SDL_GetThreadID(SDL_Thread * thread);
/* Wait for a thread to finish.
The return code for the thread function is placed in the area
pointed to by 'status', if 'status' is not NULL.
/**
* Wait for a thread to finish.
*
* The return code for the thread function is placed in the area
* pointed to by \c status, if \c status is not NULL.
*/
extern DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread * thread, int *status);
/* This function is here for binary compatibility with legacy apps, but
in SDL 1.3 and later, it's a no-op. You cannot forcibly kill a thread
in a safe manner on many platforms. You should instead find a way to
alert your thread that it is time to terminate, and then have it gracefully
exit on its own. Do not ever call this function!
/**
* \deprecated This function is here for binary compatibility with legacy apps,
* but in SDL 1.3 and later, it's a no-op.
*
* You cannot forcibly kill a thread in a safe manner on many platforms. You
* should instead find a way to alert your thread that it is time to terminate,
* and then have it gracefully exit on its own. Do not ever call this function!
*/
extern DECLSPEC void SDLCALL SDL_KillThread(SDL_Thread * thread);

61
Externals/SDL/Include/SDL_timer.h vendored
View File

@ -26,7 +26,7 @@
/**
* \file SDL_timer.h
*
* Header for the SDL time management routines
* Header for the SDL time management routines.
*/
#include "SDL_stdinc.h"
@ -40,31 +40,43 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* This is the OS scheduler timeslice, in milliseconds */
/**
* This is the OS scheduler timeslice, in milliseconds.
*/
#define SDL_TIMESLICE 10
/* This is the maximum resolution of the SDL timer on all platforms */
#define TIMER_RESOLUTION 10 /* Experimentally determined */
/**
* This is the maximum resolution of the SDL timer on all platforms.
*/
#define TIMER_RESOLUTION 10 /**< Experimentally determined */
/* Get the number of milliseconds since the SDL library initialization.
/**
* Get the number of milliseconds since the SDL library initialization.
*
* Note that this value wraps if the program runs for more than ~49 days.
*/
extern DECLSPEC Uint32 SDLCALL SDL_GetTicks(void);
/* Wait a specified number of milliseconds before returning */
/**
* Wait a specified number of milliseconds before returning.
*/
extern DECLSPEC void SDLCALL SDL_Delay(Uint32 ms);
/* Function prototype for the timer callback function */
/**
* Function prototype for the timer callback function.
*/
typedef Uint32(SDLCALL * SDL_TimerCallback) (Uint32 interval);
/* Set a callback to run after the specified number of milliseconds has
/**
* Set a callback to run after the specified number of milliseconds has
* elapsed. The callback function is passed the current timer interval
* and returns the next timer interval. If the returned value is the
* same as the one passed in, the periodic alarm continues, otherwise a
* new alarm is scheduled. If the callback returns 0, the periodic alarm
* is cancelled.
*
* To cancel a currently running timer, call SDL_SetTimer(0, NULL);
* To cancel a currently running timer, call
* \code SDL_SetTimer(0, NULL); \endcode
*
* The timer callback function may run in a different thread than your
* main code, and so shouldn't call any functions from within itself.
@ -74,25 +86,32 @@ typedef Uint32(SDLCALL * SDL_TimerCallback) (Uint32 interval);
* later on an unloaded system. If you wanted to set a flag signaling
* a frame update at 30 frames per second (every 33 ms), you might set a
* timer for 30 ms:
* \code
* SDL_SetTimer((33/10)*10, flag_update);
* \endcode
*
* If you use this function, you need to pass SDL_INIT_TIMER to SDL_Init().
* If you use this function, you need to pass ::SDL_INIT_TIMER to SDL_Init().
*
* Under UNIX, you should not use raise or use SIGALRM and this function
* in the same program, as it is implemented using setitimer(). You also
* should not use this function in multi-threaded applications as signals
* to multi-threaded apps have undefined behavior in some implementations.
*
* This function returns 0 if successful, or -1 if there was an error.
* \return 0 if successful, or -1 if there was an error.
*/
extern DECLSPEC int SDLCALL SDL_SetTimer(Uint32 interval,
SDL_TimerCallback callback);
/* New timer API, supports multiple timers
/**
* \name Peter timers
* New timer API, supports multiple timers
* Written by Stephane Peter <megastep@lokigames.com>
*/
/*@{*/
/* Function prototype for the new timer callback function.
/**
* Function prototype for the new timer callback function.
*
* The callback function is passed the current timer interval and returns
* the next timer interval. If the returned value is the same as the one
* passed in, the periodic alarm continues, otherwise a new alarm is
@ -100,21 +119,27 @@ extern DECLSPEC int SDLCALL SDL_SetTimer(Uint32 interval,
*/
typedef Uint32(SDLCALL * SDL_NewTimerCallback) (Uint32 interval, void *param);
/* Definition of the timer ID type */
/**
* Definition of the timer ID type.
*/
typedef struct _SDL_TimerID *SDL_TimerID;
/* Add a new timer to the pool of timers already running.
Returns a timer ID, or NULL when an error occurs.
/**
* Add a new timer to the pool of timers already running.
* \return A timer ID, or NULL when an error occurs.
*/
extern DECLSPEC SDL_TimerID SDLCALL SDL_AddTimer(Uint32 interval,
SDL_NewTimerCallback
callback, void *param);
/* Remove one of the multiple timers knowing its ID.
* Returns a boolean value indicating success.
/**
* Remove one of the multiple timers knowing its ID.
* \return A boolean value indicating success or failure.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_RemoveTimer(SDL_TimerID t);
/*@}*//*Peter timers*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */

6
Externals/SDL/Include/SDL_types.h vendored
View File

@ -20,5 +20,11 @@
slouken@libsdl.org
*/
/**
* \file SDL_types.h
*
* \deprecated
*/
/* DEPRECATED */
#include "SDL_stdinc.h"

26
Externals/SDL/Include/SDL_version.h vendored
View File

@ -23,7 +23,7 @@
/**
* \file SDL_version.h
*
* This header defines the current SDL version
* This header defines the current SDL version.
*/
#ifndef _SDL_version_h
@ -41,7 +41,6 @@ extern "C" {
#endif
/**
* \struct SDL_version
* \brief Information the version of SDL in use.
*
* Represents the library's version as three levels: major revision
@ -67,14 +66,13 @@ typedef struct SDL_version
#define SDL_PATCHLEVEL 0
/**
* \def SDL_VERSION(x)
* \brief Macro to determine SDL version program was compiled against.
*
* This macro fills in a SDL_version structure with the version of the
* library you compiled against. This is determined by what header the
* compiler uses. Note that if you dynamically linked the library, you might
* have a slightly newer or older version at runtime. That version can be
* determined with SDL_GetVersion(), which, unlike SDL_VERSION,
* determined with SDL_GetVersion(), which, unlike SDL_VERSION(),
* is not a macro.
*
* \param x A pointer to a SDL_version struct to initialize.
@ -89,29 +87,36 @@ typedef struct SDL_version
(x)->patch = SDL_PATCHLEVEL; \
}
/* This macro turns the version numbers into a numeric value:
/**
* This macro turns the version numbers into a numeric value:
* \verbatim
(1,2,3) -> (1203)
This assumes that there will never be more than 100 patchlevels
\endverbatim
*
* This assumes that there will never be more than 100 patchlevels.
*/
#define SDL_VERSIONNUM(X, Y, Z) \
((X)*1000 + (Y)*100 + (Z))
/* This is the version number macro for the current SDL version */
/**
* This is the version number macro for the current SDL version.
*/
#define SDL_COMPILEDVERSION \
SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL)
/* This macro will evaluate to true if compiled with SDL at least X.Y.Z */
/**
* This macro will evaluate to true if compiled with SDL at least X.Y.Z.
*/
#define SDL_VERSION_ATLEAST(X, Y, Z) \
(SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z))
/**
* \fn void SDL_GetVersion(SDL_version *ver)
* \brief Get the version of SDL that is linked against your program.
*
* If you are using a shared library (DLL) version of SDL, then it is
* possible that it will be different than the version you compiled against.
*
* This is a real function; the macro SDL_VERSION tells you what version
* This is a real function; the macro SDL_VERSION() tells you what version
* of SDL you compiled against:
*
* \code
@ -133,7 +138,6 @@ typedef struct SDL_version
extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver);
/**
* \fn int SDL_GetRevision(void)
* \brief Get the code revision of SDL that is linked against your program.
*/
extern DECLSPEC int SDLCALL SDL_GetRevision(void);

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27
Externals/SDL/Include/begin_code.h vendored
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@ -20,9 +20,12 @@
slouken@libsdl.org
*/
/* This file sets things up for C dynamic library function definitions,
static inlined functions, and structures aligned at 4-byte alignment.
If you don't like ugly C preprocessor code, don't look at this file. :)
/**
* \file begin_code.h
*
* This file sets things up for C dynamic library function definitions,
* static inlined functions, and structures aligned at 4-byte alignment.
* If you don't like ugly C preprocessor code, don't look at this file. :)
*/
/* This shouldn't be nested -- included it around code only. */
@ -33,7 +36,7 @@
/* Some compilers use a special export keyword */
#ifndef DECLSPEC
# if defined(__BEOS__)
# if defined(__BEOS__) || defined(__HAIKU__)
# if defined(__GNUC__)
# define DECLSPEC __declspec(dllexport)
# else
@ -49,16 +52,6 @@
# else
# define DECLSPEC __declspec(dllexport)
# endif
# elif defined(__OS2__)
# ifdef __WATCOMC__
# ifdef BUILD_SDL
# define DECLSPEC __declspec(dllexport)
# else
# define DECLSPEC
# endif
# else
# define DECLSPEC
# endif
# else
# if defined(__GNUC__) && __GNUC__ >= 4
# define DECLSPEC __attribute__ ((visibility("default")))
@ -73,14 +66,8 @@
#if defined(__WIN32__) && !defined(__GNUC__)
#define SDLCALL __cdecl
#else
#ifdef __OS2__
/* But on OS/2, we use the _System calling convention */
/* to be compatible with every compiler */
#define SDLCALL _System
#else
#define SDLCALL
#endif
#endif
#endif /* SDLCALL */
/* Removed DECLSPEC on Symbian OS because SDL cannot be a DLL in EPOC */

7
Externals/SDL/Include/close_code.h vendored
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@ -20,8 +20,11 @@
slouken@libsdl.org
*/
/* This file reverses the effects of begin_code.h and should be included
after you finish any function and structure declarations in your headers
/**
* \file close_code.h
*
* This file reverses the effects of begin_code.h and should be included
* after you finish any function and structure declarations in your headers
*/
#undef _begin_code_h

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Externals/SDL/src/SDL.c vendored Normal file
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@ -0,0 +1,360 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Initialization code for SDL */
#include "SDL.h"
#include "SDL_fatal.h"
#if !SDL_VIDEO_DISABLED
#include "video/SDL_leaks.h"
#endif
#if SDL_THREAD_PTH
#include <pth.h>
#endif
/* Initialization/Cleanup routines */
#if !SDL_JOYSTICK_DISABLED
extern int SDL_JoystickInit(void);
extern void SDL_JoystickQuit(void);
#endif
#if !SDL_HAPTIC_DISABLED
extern int SDL_HapticInit(void);
extern int SDL_HapticQuit(void);
#endif
#if !SDL_TIMERS_DISABLED
extern void SDL_StartTicks(void);
extern int SDL_TimerInit(void);
extern void SDL_TimerQuit(void);
#endif
#if defined(__WIN32__)
extern int SDL_HelperWindowCreate(void);
extern int SDL_HelperWindowDestroy(void);
#endif
/* The initialized subsystems */
static Uint32 SDL_initialized = 0;
static Uint32 ticks_started = 0;
#ifdef CHECK_LEAKS
int surfaces_allocated = 0;
#endif
int
SDL_InitSubSystem(Uint32 flags)
{
#if !SDL_VIDEO_DISABLED
/* Initialize the video/event subsystem */
if ((flags & SDL_INIT_VIDEO) && !(SDL_initialized & SDL_INIT_VIDEO)) {
if (SDL_VideoInit(NULL, (flags & SDL_INIT_EVENTTHREAD)) < 0) {
return (-1);
}
SDL_initialized |= SDL_INIT_VIDEO;
}
#else
if (flags & SDL_INIT_VIDEO) {
SDL_SetError("SDL not built with video support");
return (-1);
}
#endif
#if !SDL_AUDIO_DISABLED
/* Initialize the audio subsystem */
if ((flags & SDL_INIT_AUDIO) && !(SDL_initialized & SDL_INIT_AUDIO)) {
if (SDL_AudioInit(NULL) < 0) {
return (-1);
}
SDL_initialized |= SDL_INIT_AUDIO;
}
#else
if (flags & SDL_INIT_AUDIO) {
SDL_SetError("SDL not built with audio support");
return (-1);
}
#endif
#if !SDL_TIMERS_DISABLED
/* Initialize the timer subsystem */
if (!ticks_started) {
SDL_StartTicks();
ticks_started = 1;
}
if ((flags & SDL_INIT_TIMER) && !(SDL_initialized & SDL_INIT_TIMER)) {
if (SDL_TimerInit() < 0) {
return (-1);
}
SDL_initialized |= SDL_INIT_TIMER;
}
#else
if (flags & SDL_INIT_TIMER) {
SDL_SetError("SDL not built with timer support");
return (-1);
}
#endif
#if !SDL_JOYSTICK_DISABLED
/* Initialize the joystick subsystem */
if ((flags & SDL_INIT_JOYSTICK) && !(SDL_initialized & SDL_INIT_JOYSTICK)) {
if (SDL_JoystickInit() < 0) {
return (-1);
}
SDL_initialized |= SDL_INIT_JOYSTICK;
}
#else
if (flags & SDL_INIT_JOYSTICK) {
SDL_SetError("SDL not built with joystick support");
return (-1);
}
#endif
#if !SDL_HAPTIC_DISABLED
/* Initialize the haptic subsystem */
if ((flags & SDL_INIT_HAPTIC) && !(SDL_initialized & SDL_INIT_HAPTIC)) {
if (SDL_HapticInit() < 0) {
return (-1);
}
SDL_initialized |= SDL_INIT_HAPTIC;
}
#else
if (flags & SDL_INIT_HAPTIC) {
SDL_SetError("SDL not built with haptic (force feedback) support");
return (-1);
}
#endif
return (0);
}
int
SDL_Init(Uint32 flags)
{
#if !SDL_THREADS_DISABLED && SDL_THREAD_PTH
if (!pth_init()) {
return -1;
}
#endif
/* Clear the error message */
SDL_ClearError();
#if defined(__WIN32__)
if (SDL_HelperWindowCreate() < 0) {
return -1;
}
#endif
/* Initialize the desired subsystems */
if (SDL_InitSubSystem(flags) < 0) {
return (-1);
}
/* Everything is initialized */
if (!(flags & SDL_INIT_NOPARACHUTE)) {
SDL_InstallParachute();
}
return (0);
}
void
SDL_QuitSubSystem(Uint32 flags)
{
/* Shut down requested initialized subsystems */
#if !SDL_JOYSTICK_DISABLED
if ((flags & SDL_initialized & SDL_INIT_JOYSTICK)) {
SDL_JoystickQuit();
SDL_initialized &= ~SDL_INIT_JOYSTICK;
}
#endif
#if !SDL_HAPTIC_DISABLED
if ((flags & SDL_initialized & SDL_INIT_HAPTIC)) {
SDL_HapticQuit();
SDL_initialized &= ~SDL_INIT_HAPTIC;
}
#endif
#if !SDL_TIMERS_DISABLED
if ((flags & SDL_initialized & SDL_INIT_TIMER)) {
SDL_TimerQuit();
SDL_initialized &= ~SDL_INIT_TIMER;
}
#endif
#if !SDL_AUDIO_DISABLED
if ((flags & SDL_initialized & SDL_INIT_AUDIO)) {
SDL_AudioQuit();
SDL_initialized &= ~SDL_INIT_AUDIO;
}
#endif
#if !SDL_VIDEO_DISABLED
if ((flags & SDL_initialized & SDL_INIT_VIDEO)) {
SDL_VideoQuit();
SDL_initialized &= ~SDL_INIT_VIDEO;
}
#endif
}
Uint32
SDL_WasInit(Uint32 flags)
{
if (!flags) {
flags = SDL_INIT_EVERYTHING;
}
return (SDL_initialized & flags);
}
void
SDL_Quit(void)
{
/* Quit all subsystems */
#ifdef DEBUG_BUILD
printf("[SDL_Quit] : Enter! Calling QuitSubSystem()\n");
fflush(stdout);
#endif
#if defined(__WIN32__)
SDL_HelperWindowDestroy();
#endif
SDL_QuitSubSystem(SDL_INIT_EVERYTHING);
#ifdef CHECK_LEAKS
#ifdef DEBUG_BUILD
printf("[SDL_Quit] : CHECK_LEAKS\n");
fflush(stdout);
#endif
/* Print the number of surfaces not freed */
if (surfaces_allocated != 0) {
fprintf(stderr, "SDL Warning: %d SDL surfaces extant\n",
surfaces_allocated);
}
#endif
#ifdef DEBUG_BUILD
printf("[SDL_Quit] : SDL_UninstallParachute()\n");
fflush(stdout);
#endif
/* Uninstall any parachute signal handlers */
SDL_UninstallParachute();
#if !SDL_THREADS_DISABLED && SDL_THREAD_PTH
pth_kill();
#endif
#ifdef DEBUG_BUILD
printf("[SDL_Quit] : Returning!\n");
fflush(stdout);
#endif
}
/* Get the library version number */
void
SDL_GetVersion(SDL_version * ver)
{
SDL_VERSION(ver);
}
/* Get the library source revision */
int
SDL_GetRevision(void)
{
return SDL_REVISION;
}
/* Get the name of the platform */
const char *
SDL_GetPlatform()
{
#if __AIX__
return "AIX";
#elif __HAIKU__
/* Haiku must appear here before BeOS, since it also defines __BEOS__ */
return "Haiku";
#elif __BEOS__
return "BeOS";
#elif __BSDI__
return "BSDI";
#elif __DREAMCAST__
return "Dreamcast";
#elif __FREEBSD__
return "FreeBSD";
#elif __HPUX__
return "HP-UX";
#elif __IRIX__
return "Irix";
#elif __LINUX__
return "Linux";
#elif __MINT__
return "Atari MiNT";
#elif __MACOS__
return "MacOS Classic";
#elif __MACOSX__
return "Mac OS X";
#elif __NETBSD__
return "NetBSD";
#elif __OPENBSD__
return "OpenBSD";
#elif __OS2__
return "OS/2";
#elif __OSF__
return "OSF/1";
#elif __QNXNTO__
return "QNX Neutrino";
#elif __RISCOS__
return "RISC OS";
#elif __SOLARIS__
return "Solaris";
#elif __WIN32__
#ifdef _WIN32_WCE
return "Windows CE";
#else
return "Windows";
#endif
#elif __IPHONEOS__
return "iPhone OS";
#else
return "Unknown (see SDL_platform.h)";
#endif
}
#if defined(__WIN32__)
#if !defined(HAVE_LIBC) || (defined(__WATCOMC__) && defined(BUILD_DLL))
/* Need to include DllMain() on Watcom C for some reason.. */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
BOOL APIENTRY
_DllMainCRTStartup(HANDLE hModule,
DWORD ul_reason_for_call, LPVOID lpReserved)
{
switch (ul_reason_for_call) {
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
#endif /* building DLL with Watcom C */
#endif /* __WIN32__ */
/* vi: set ts=4 sw=4 expandtab: */

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259
Externals/SDL/src/SDL_error.c vendored Normal file
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@ -0,0 +1,259 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Simple error handling in SDL */
#include "SDL_error.h"
#include "SDL_error_c.h"
/* Routine to get the thread-specific error variable */
#if SDL_THREADS_DISABLED
/* !!! FIXME: what does this comment mean? Victim of Search and Replace? */
/* The SDL_arraysize(The ),default (non-thread-safe) global error variable */
static SDL_error SDL_global_error;
#define SDL_GetErrBuf() (&SDL_global_error)
#else
extern SDL_error *SDL_GetErrBuf(void);
#endif /* SDL_THREADS_DISABLED */
#define SDL_ERRBUFIZE 1024
/* Private functions */
static const char *
SDL_LookupString(const char *key)
{
/* FIXME: Add code to lookup key in language string hash-table */
return key;
}
/* Public functions */
void
SDL_SetError(const char *fmt, ...)
{
va_list ap;
SDL_error *error;
/* Copy in the key, mark error as valid */
error = SDL_GetErrBuf();
error->error = 1;
SDL_strlcpy((char *) error->key, fmt, sizeof(error->key));
va_start(ap, fmt);
error->argc = 0;
while (*fmt) {
if (*fmt++ == '%') {
while (*fmt == '.' || (*fmt >= '0' && *fmt <= '9')) {
++fmt;
}
switch (*fmt++) {
case 0: /* Malformed format string.. */
--fmt;
break;
case 'c':
case 'i':
case 'd':
case 'u':
case 'o':
case 'x':
case 'X':
error->args[error->argc++].value_i = va_arg(ap, int);
break;
case 'f':
error->args[error->argc++].value_f = va_arg(ap, double);
break;
case 'p':
error->args[error->argc++].value_ptr = va_arg(ap, void *);
break;
case 's':
{
int i = error->argc;
const char *str = va_arg(ap, const char *);
if (str == NULL)
str = "(null)";
SDL_strlcpy((char *) error->args[i].buf, str,
ERR_MAX_STRLEN);
error->argc++;
}
break;
default:
break;
}
if (error->argc >= ERR_MAX_ARGS) {
break;
}
}
}
va_end(ap);
/* If we are in debug mode, print out an error message */
#ifdef DEBUG_ERROR
fprintf(stderr, "SDL_SetError: %s\n", SDL_GetError());
#endif
}
/* This function has a bit more overhead than most error functions
so that it supports internationalization and thread-safe errors.
*/
char *
SDL_GetErrorMsg(char *errstr, unsigned int maxlen)
{
SDL_error *error;
/* Clear the error string */
*errstr = '\0';
--maxlen;
/* Get the thread-safe error, and print it out */
error = SDL_GetErrBuf();
if (error->error) {
const char *fmt;
char *msg = errstr;
int len;
int argi;
fmt = SDL_LookupString(error->key);
argi = 0;
while (*fmt && (maxlen > 0)) {
if (*fmt == '%') {
char tmp[32], *spot = tmp;
*spot++ = *fmt++;
while ((*fmt == '.' || (*fmt >= '0' && *fmt <= '9'))
&& spot < (tmp + SDL_arraysize(tmp) - 2)) {
*spot++ = *fmt++;
}
*spot++ = *fmt++;
*spot++ = '\0';
switch (spot[-2]) {
case '%':
*msg++ = '%';
maxlen -= 1;
break;
case 'c':
case 'i':
case 'd':
case 'u':
case 'o':
case 'x':
case 'X':
len =
SDL_snprintf(msg, maxlen, tmp,
error->args[argi++].value_i);
msg += len;
maxlen -= len;
break;
case 'f':
len =
SDL_snprintf(msg, maxlen, tmp,
error->args[argi++].value_f);
msg += len;
maxlen -= len;
break;
case 'p':
len =
SDL_snprintf(msg, maxlen, tmp,
error->args[argi++].value_ptr);
msg += len;
maxlen -= len;
break;
case 's':
len =
SDL_snprintf(msg, maxlen, tmp,
SDL_LookupString(error->args[argi++].
buf));
msg += len;
maxlen -= len;
break;
}
} else {
*msg++ = *fmt++;
maxlen -= 1;
}
}
*msg = 0; /* NULL terminate the string */
}
return (errstr);
}
/* Available for backwards compatibility */
char *
SDL_GetError(void)
{
static char errmsg[SDL_ERRBUFIZE];
return ((char *) SDL_GetErrorMsg(errmsg, SDL_ERRBUFIZE));
}
void
SDL_ClearError(void)
{
SDL_error *error;
error = SDL_GetErrBuf();
error->error = 0;
}
/* Very common errors go here */
void
SDL_Error(SDL_errorcode code)
{
switch (code) {
case SDL_ENOMEM:
SDL_SetError("Out of memory");
break;
case SDL_EFREAD:
SDL_SetError("Error reading from datastream");
break;
case SDL_EFWRITE:
SDL_SetError("Error writing to datastream");
break;
case SDL_EFSEEK:
SDL_SetError("Error seeking in datastream");
break;
case SDL_UNSUPPORTED:
SDL_SetError("That operation is not supported");
break;
default:
SDL_SetError("Unknown SDL error");
break;
}
}
#ifdef TEST_ERROR
int
main(int argc, char *argv[])
{
char buffer[BUFSIZ + 1];
SDL_SetError("Hi there!");
printf("Error 1: %s\n", SDL_GetError());
SDL_ClearError();
SDL_memset(buffer, '1', BUFSIZ);
buffer[BUFSIZ] = 0;
SDL_SetError("This is the error: %s (%f)", buffer, 1.0);
printf("Error 2: %s\n", SDL_GetError());
exit(0);
}
#endif
/* vi: set ts=4 sw=4 expandtab: */

61
Externals/SDL/src/SDL_error_c.h vendored Normal file
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@ -0,0 +1,61 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* This file defines a structure that carries language-independent
error messages
*/
#ifndef _SDL_error_c_h
#define _SDL_error_c_h
#define ERR_MAX_STRLEN 128
#define ERR_MAX_ARGS 5
typedef struct SDL_error
{
/* This is a numeric value corresponding to the current error */
int error;
/* This is a key used to index into a language hashtable containing
internationalized versions of the SDL error messages. If the key
is not in the hashtable, or no hashtable is available, the key is
used directly as an error message format string.
*/
char key[ERR_MAX_STRLEN];
/* These are the arguments for the error functions */
int argc;
union
{
void *value_ptr;
#if 0 /* What is a character anyway? (UNICODE issues) */
unsigned char value_c;
#endif
int value_i;
double value_f;
char buf[ERR_MAX_STRLEN];
} args[ERR_MAX_ARGS];
} SDL_error;
#endif /* _SDL_error_c_h */
/* vi: set ts=4 sw=4 expandtab: */

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@ -0,0 +1,140 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* General fatal signal handling code for SDL */
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#include "SDL_stdinc.h"
#include "SDL_fatal.h"
/* This installs some signal handlers for the more common fatal signals,
so that if the programmer is lazy, the app doesn't die so horribly if
the program crashes.
*/
static void
SDL_Parachute(int sig)
{
signal(sig, SIG_DFL);
SDL_Quit();
raise(sig);
}
static const int SDL_fatal_signals[] = {
SIGSEGV,
#ifdef SIGBUS
SIGBUS,
#endif
#ifdef SIGFPE
SIGFPE,
#endif
#ifdef SIGQUIT
SIGQUIT,
#endif
0
};
void
SDL_InstallParachute(void)
{
/* Set a handler for any fatal signal not already handled */
int i;
#ifdef HAVE_SIGACTION
struct sigaction action;
for (i = 0; SDL_fatal_signals[i]; ++i) {
sigaction(SDL_fatal_signals[i], NULL, &action);
if (action.sa_handler == SIG_DFL) {
action.sa_handler = SDL_Parachute;
sigaction(SDL_fatal_signals[i], &action, NULL);
}
}
#ifdef SIGALRM
/* Set SIGALRM to be ignored -- necessary on Solaris */
sigaction(SIGALRM, NULL, &action);
if (action.sa_handler == SIG_DFL) {
action.sa_handler = SIG_IGN;
sigaction(SIGALRM, &action, NULL);
}
#endif
#else
void (*ohandler) (int);
for (i = 0; SDL_fatal_signals[i]; ++i) {
ohandler = signal(SDL_fatal_signals[i], SDL_Parachute);
if (ohandler != SIG_DFL) {
signal(SDL_fatal_signals[i], ohandler);
}
}
#endif /* HAVE_SIGACTION */
return;
}
void
SDL_UninstallParachute(void)
{
/* Remove a handler for any fatal signal handled */
int i;
#ifdef HAVE_SIGACTION
struct sigaction action;
for (i = 0; SDL_fatal_signals[i]; ++i) {
sigaction(SDL_fatal_signals[i], NULL, &action);
if (action.sa_handler == SDL_Parachute) {
action.sa_handler = SIG_DFL;
sigaction(SDL_fatal_signals[i], &action, NULL);
}
}
#else
void (*ohandler) (int);
for (i = 0; SDL_fatal_signals[i]; ++i) {
ohandler = signal(SDL_fatal_signals[i], SIG_DFL);
if (ohandler != SDL_Parachute) {
signal(SDL_fatal_signals[i], ohandler);
}
}
#endif /* HAVE_SIGACTION */
}
#else
/* No signals on this platform, nothing to do.. */
void
SDL_InstallParachute(void)
{
return;
}
void
SDL_UninstallParachute(void)
{
return;
}
#endif /* HAVE_SIGNAL_H */
/* vi: set ts=4 sw=4 expandtab: */

28
Externals/SDL/src/SDL_fatal.h vendored Normal file
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@ -0,0 +1,28 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* General fatal signal handling code for SDL */
extern void SDL_InstallParachute(void);
extern void SDL_UninstallParachute(void);
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
Contributed by Bob Pendleton, bob@pendleton.com
*/
#include "SDL_stdinc.h"
#include "SDL_atomic.h"
#include "SDL_error.h"
/*
This file provides 32, and 64 bit atomic operations. If the
operations are provided by the native hardware and operating system
they are used. If they are not then the operations are emulated
using the SDL spin lock operations. If spin lock can not be
implemented then these functions must fail.
*/
/*
DUMMY VERSION.
This version of the code assumes there is no support for atomic
operations. Therefore, every function sets the SDL error
message. Oddly enough, if you only have one thread then this
version actuallys works.
*/
/*
Native spinlock routines. Because this is the dummy implementation
these will always call SDL_SetError() and do nothing.
*/
void
SDL_AtomicLock(SDL_SpinLock *lock)
{
SDL_SetError("SDL_atomic.c: is not implemented on this platform");
}
void
SDL_AtomicUnlock(SDL_SpinLock *lock)
{
SDL_SetError("SDL_atomic.c: is not implemented on this platform");
}
/*
Note that platform specific versions can be built from this version
by changing the #undefs to #defines and adding platform specific
code.
*/
#undef nativeTestThenSet32
#undef nativeClear32
#undef nativeFetchThenIncrement32
#undef nativeFetchThenDecrement32
#undef nativeFetchThenAdd32
#undef nativeFetchThenSubtract32
#undef nativeIncrementThenFetch32
#undef nativeDecrementThenFetch32
#undef nativeAddThenFetch32
#undef nativeSubtractThenFetch32
#undef nativeTestThenSet64
#undef nativeClear64
#undef nativeFetchThenIncrement64
#undef nativeFetchThenDecrement64
#undef nativeFetchThenAdd64
#undef nativeFetchThenSubtract64
#undef nativeIncrementThenFetch64
#undef nativeDecrementThenFetch64
#undef nativeAddThenFetch64
#undef nativeSubtractThenFetch64
/*
If any of the operations are not provided then we must emulate some
of them. That means we need a nice implementation of spin locks
that avoids the "one big lock" problem. We use a vector of spin
locks and pick which one to use based on the address of the operand
of the function.
To generate the index of the lock we first shift by 3 bits to get
rid on the zero bits that result from 32 and 64 bit allignment of
data. We then mask off all but 5 bits and use those 5 bits as an
index into the table.
Picking the lock this way insures that accesses to the same data at
the same time will go to the same lock. OTOH, accesses to different
data have only a 1/32 chance of hitting the same lock. That should
pretty much eliminate the chances of several atomic operations on
different data from waiting on the same "big lock". If it isn't
then the table of locks can be expanded to a new size so long as
the new size is a power of two.
*/
static SDL_SpinLock locks[32] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
static __inline__ void
privateWaitLock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif
SDL_AtomicLock(&locks[index]);
}
static __inline__ void
privateUnlock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif
SDL_AtomicUnlock(&locks[index]);
}
/* 32 bit atomic operations */
SDL_bool
SDL_AtomicTestThenSet32(volatile Uint32 * ptr)
{
#ifdef nativeTestThenSet32
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif
}
void
SDL_AtomicClear32(volatile Uint32 * ptr)
{
#ifdef nativeClear32
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif
}
Uint32
SDL_AtomicFetchThenIncrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenIncrement32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenDecrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenDecrement32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenAdd32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenAdd32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenSubtract32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenSubtract32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicIncrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeIncrementThenFetch32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicDecrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeDecrementThenFetch32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicAddThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeAddThenFetch32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicSubtractThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeSubtractThenFetch32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
/* 64 bit atomic operations */
#ifdef SDL_HAS_64BIT_TYPE
SDL_bool
SDL_AtomicTestThenSet64(volatile Uint64 * ptr)
{
#ifdef nativeTestThenSet64
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif
}
void
SDL_AtomicClear64(volatile Uint64 * ptr)
{
#ifdef nativeClear64
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif
}
Uint64
SDL_AtomicFetchThenIncrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenIncrement64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenDecrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenDecrement64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenAdd64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenAdd64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenSubtract64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenSubtract64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicIncrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeIncrementThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicDecrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeDecrementThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicAddThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeAddThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicSubtractThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeSubtractThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
#endif

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
Contributed by Bob Pendleton, bob@pendleton.com
*/
#include "SDL_stdinc.h"
#include "SDL_atomic.h"
#include "SDL_error.h"
/*
This file provides 32, and 64 bit atomic operations. If the
operations are provided by the native hardware and operating system
they are used. If they are not then the operations are emulated
using the SDL spin lock operations. If spin lock can not be
implemented then these functions must fail.
*/
/*
LINUX/GCC VERSION.
This version of the code assumes support of the atomic builtins as
documented at gcc.gnu.org/onlinedocs/gcc/Atomic-Builtins.html This
code should work on any modern x86 or other processor supported by
GCC.
Some processors will only support some of these operations so
#ifdefs will have to be added as incompatibilities are discovered
*/
/*
Native spinlock routines.
*/
void
SDL_AtomicLock(SDL_SpinLock *lock)
{
while (0 != __sync_lock_test_and_set(lock, 1))
{
}
}
void
SDL_AtomicUnlock(SDL_SpinLock *lock)
{
__sync_lock_test_and_set(lock, 0);
}
/*
Note that platform specific versions can be built from this version
by changing the #undefs to #defines and adding platform specific
code.
*/
#define nativeTestThenSet32
#define nativeClear32
#define nativeFetchThenIncrement32
#define nativeFetchThenDecrement32
#define nativeFetchThenAdd32
#define nativeFetchThenSubtract32
#define nativeIncrementThenFetch32
#define nativeDecrementThenFetch32
#define nativeAddThenFetch32
#define nativeSubtractThenFetch32
#ifdef SDL_HAS_64BIT_TYPE
#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
#define nativeTestThenSet64
#define nativeClear64
#define nativeFetchThenIncrement64
#define nativeFetchThenDecrement64
#define nativeFetchThenAdd64
#define nativeFetchThenSubtract64
#define nativeIncrementThenFetch64
#define nativeDecrementThenFetch64
#define nativeAddThenFetch64
#define nativeSubtractThenFetch64
#else
#undef nativeTestThenSet64
#undef nativeClear64
#undef nativeFetchThenIncrement64
#undef nativeFetchThenDecrement64
#undef nativeFetchThenAdd64
#undef nativeFetchThenSubtract64
#undef nativeIncrementThenFetch64
#undef nativeDecrementThenFetch64
#undef nativeAddThenFetch64
#undef nativeSubtractThenFetch64
#endif /* __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 */
#endif /* SDL_HAS_64BIT_TYPE */
/*
If any of the operations are not provided then we must emulate some
of them. That means we need a nice implementation of spin locks
that avoids the "one big lock" problem. We use a vector of spin
locks and pick which one to use based on the address of the operand
of the function.
To generate the index of the lock we first shift by 3 bits to get
rid on the zero bits that result from 32 and 64 bit allignment of
data. We then mask off all but 5 bits and use those 5 bits as an
index into the table.
Picking the lock this way insures that accesses to the same data at
the same time will go to the same lock. OTOH, accesses to different
data have only a 1/32 chance of hitting the same lock. That should
pretty much eliminate the chances of several atomic operations on
different data from waiting on the same "big lock". If it isn't
then the table of locks can be expanded to a new size so long as
the new size is a power of two.
*/
static SDL_SpinLock locks[32] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
static __inline__ void
privateWaitLock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif
SDL_AtomicLock(&locks[index]);
}
static __inline__ void
privateUnlock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif
SDL_AtomicUnlock(&locks[index]);
}
/* 32 bit atomic operations */
SDL_bool
SDL_AtomicTestThenSet32(volatile Uint32 * ptr)
{
#ifdef nativeTestThenSet32
return 0 == __sync_lock_test_and_set(ptr, 1);
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif
}
void
SDL_AtomicClear32(volatile Uint32 * ptr)
{
#ifdef nativeClear32
__sync_lock_test_and_set(ptr, 0);
return;
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif
}
Uint32
SDL_AtomicFetchThenIncrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenIncrement32
return __sync_fetch_and_add(ptr, 1);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenDecrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenDecrement32
return __sync_fetch_and_sub(ptr, 1);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenAdd32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenAdd32
return __sync_fetch_and_add(ptr, value);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenSubtract32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenSubtract32
return __sync_fetch_and_sub(ptr, value);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicIncrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeIncrementThenFetch32
return __sync_add_and_fetch(ptr, 1);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicDecrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeDecrementThenFetch32
return __sync_sub_and_fetch(ptr, 1);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicAddThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeAddThenFetch32
return __sync_add_and_fetch(ptr, value);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicSubtractThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeSubtractThenFetch32
return __sync_sub_and_fetch(ptr, value);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
/* 64 bit atomic operations */
#ifdef SDL_HAS_64BIT_TYPE
SDL_bool
SDL_AtomicTestThenSet64(volatile Uint64 * ptr)
{
#ifdef nativeTestThenSet64
return 0 == __sync_lock_test_and_set(ptr, 1);
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif
}
void
SDL_AtomicClear64(volatile Uint64 * ptr)
{
#ifdef nativeClear64
__sync_lock_test_and_set(ptr, 0);
return;
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif
}
Uint64
SDL_AtomicFetchThenIncrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenIncrement64
return __sync_fetch_and_add(ptr, 1);
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenDecrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenDecrement64
return __sync_fetch_and_sub(ptr, 1);
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenAdd64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenAdd64
return __sync_fetch_and_add(ptr, value);
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenSubtract64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenSubtract64
return __sync_fetch_and_sub(ptr, value);
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicIncrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeIncrementThenFetch64
return __sync_add_and_fetch(ptr, 1);
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicDecrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeDecrementThenFetch64
return __sync_sub_and_fetch(ptr, 1);
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicAddThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeAddThenFetch64
return __sync_add_and_fetch(ptr, value);
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicSubtractThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeSubtractThenFetch64
return __sync_sub_and_fetch(ptr, value);
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
#endif /* SDL_HAS_64BIT_TYPE */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
Contributed by Bob Pendleton, bob@pendleton.com
*/
#include "SDL_stdinc.h"
#include "SDL_atomic.h"
#include "SDL_error.h"
/*
This file provides 32, and 64 bit atomic operations. If the
operations are provided by the native hardware and operating system
they are used. If they are not then the operations are emulated
using the SDL spin lock operations. If spin lock can not be
implemented then these functions must fail.
*/
/*
DUMMY VERSION.
This version of the code assumes there is no support for atomic
operations. Therefore, every function sets the SDL error
message. Oddly enough, if you only have one thread then this
version actuallys works.
*/
/*
Native spinlock routines. Because this is the dummy implementation
these will always call SDL_SetError() and do nothing.
*/
void
SDL_AtomicLock(SDL_SpinLock *lock)
{
SDL_SetError("SDL_atomic.c: is not implemented on this platform");
}
void
SDL_AtomicUnlock(SDL_SpinLock *lock)
{
SDL_SetError("SDL_atomic.c: is not implemented on this platform");
}
/*
Note that platform specific versions can be built from this version
by changing the #undefs to #defines and adding platform specific
code.
*/
#undef nativeTestThenSet32
#undef nativeClear32
#undef nativeFetchThenIncrement32
#undef nativeFetchThenDecrement32
#undef nativeFetchThenAdd32
#undef nativeFetchThenSubtract32
#undef nativeIncrementThenFetch32
#undef nativeDecrementThenFetch32
#undef nativeAddThenFetch32
#undef nativeSubtractThenFetch32
#undef nativeTestThenSet64
#undef nativeClear64
#undef nativeFetchThenIncrement64
#undef nativeFetchThenDecrement64
#undef nativeFetchThenAdd64
#undef nativeFetchThenSubtract64
#undef nativeIncrementThenFetch64
#undef nativeDecrementThenFetch64
#undef nativeAddThenFetch64
#undef nativeSubtractThenFetch64
/*
If any of the operations are not provided then we must emulate some
of them. That means we need a nice implementation of spin locks
that avoids the "one big lock" problem. We use a vector of spin
locks and pick which one to use based on the address of the operand
of the function.
To generate the index of the lock we first shift by 3 bits to get
rid on the zero bits that result from 32 and 64 bit allignment of
data. We then mask off all but 5 bits and use those 5 bits as an
index into the table.
Picking the lock this way insures that accesses to the same data at
the same time will go to the same lock. OTOH, accesses to different
data have only a 1/32 chance of hitting the same lock. That should
pretty much eliminate the chances of several atomic operations on
different data from waiting on the same "big lock". If it isn't
then the table of locks can be expanded to a new size so long as
the new size is a power of two.
*/
static SDL_SpinLock locks[32] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
static __inline__ void
privateWaitLock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif
SDL_AtomicLock(&locks[index]);
}
static __inline__ void
privateUnlock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif
SDL_AtomicUnlock(&locks[index]);
}
/* 32 bit atomic operations */
SDL_bool
SDL_AtomicTestThenSet32(volatile Uint32 * ptr)
{
#ifdef nativeTestThenSet32
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif
}
void
SDL_AtomicClear32(volatile Uint32 * ptr)
{
#ifdef nativeClear32
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif
}
Uint32
SDL_AtomicFetchThenIncrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenIncrement32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenDecrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenDecrement32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenAdd32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenAdd32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenSubtract32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenSubtract32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicIncrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeIncrementThenFetch32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicDecrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeDecrementThenFetch32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicAddThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeAddThenFetch32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicSubtractThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeSubtractThenFetch32
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
/* 64 bit atomic operations */
#ifdef SDL_HAS_64BIT_TYPE
SDL_bool
SDL_AtomicTestThenSet64(volatile Uint64 * ptr)
{
#ifdef nativeTestThenSet64
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif
}
void
SDL_AtomicClear64(volatile Uint64 * ptr)
{
#ifdef nativeClear64
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif
}
Uint64
SDL_AtomicFetchThenIncrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenIncrement64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenDecrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenDecrement64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenAdd64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenAdd64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenSubtract64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenSubtract64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicIncrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeIncrementThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicDecrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeDecrementThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicAddThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeAddThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicSubtractThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeSubtractThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
#endif

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
QNX native atomic operations
Copyright (C) 2009 Mike Gorchak
(mike@malva.ua, lestat@i.com.ua)
*/
#include "SDL_stdinc.h"
#include "SDL_atomic.h"
#include "SDL_error.h"
#include <atomic.h>
/* SMP Exchange for PPC platform */
#ifdef __PPC__
#include <ppc/smpxchg.h>
#endif /* __PPC__ */
/* SMP Exchange for ARM platform */
#ifdef __ARM__
#include <arm/smpxchg.h>
#endif /* __ARM__ */
/* SMP Exchange for MIPS platform */
#if defined (__MIPSEB__) || defined(__MIPSEL__)
#include <mips/smpxchg.h>
#endif /* __MIPSEB__ || __MIPSEL__ */
/* SMP Exchange for SH platform */
#ifdef __SH__
#include <sh/smpxchg.h>
#endif /* __SH__ */
/* SMP Exchange for x86 platform */
#ifdef __X86__
#include <x86/smpxchg.h>
#endif /* __X86__ */
/*
This file provides 32, and 64 bit atomic operations. If the
operations are provided by the native hardware and operating system
they are used. If they are not then the operations are emulated
using the SDL spin lock operations. If spin lock can not be
implemented then these functions must fail.
*/
void
SDL_AtomicLock(SDL_SpinLock *lock)
{
unsigned volatile* l = (unsigned volatile*)lock;
Uint32 oldval = 0;
Uint32 newval = 1;
oldval = _smp_xchg(l, newval);
while(1 == oldval)
{
oldval = _smp_xchg(l, newval);
}
}
void
SDL_AtomicUnlock(SDL_SpinLock *lock)
{
unsigned volatile* l = (unsigned volatile*)lock;
Uint32 newval = 0;
_smp_xchg(l, newval);
}
/*
QNX 6.4.1 supports only 32 bit atomic access
*/
#undef nativeTestThenSet32
#define nativeClear32
#define nativeFetchThenIncrement32
#define nativeFetchThenDecrement32
#define nativeFetchThenAdd32
#define nativeFetchThenSubtract32
#define nativeIncrementThenFetch32
#define nativeDecrementThenFetch32
#define nativeAddThenFetch32
#define nativeSubtractThenFetch32
#undef nativeTestThenSet64
#undef nativeClear64
#undef nativeFetchThenIncrement64
#undef nativeFetchThenDecrement64
#undef nativeFetchThenAdd64
#undef nativeFetchThenSubtract64
#undef nativeIncrementThenFetch64
#undef nativeDecrementThenFetch64
#undef nativeAddThenFetch64
#undef nativeSubtractThenFetch64
/*
If any of the operations are not provided then we must emulate some
of them. That means we need a nice implementation of spin locks
that avoids the "one big lock" problem. We use a vector of spin
locks and pick which one to use based on the address of the operand
of the function.
To generate the index of the lock we first shift by 3 bits to get
rid on the zero bits that result from 32 and 64 bit allignment of
data. We then mask off all but 5 bits and use those 5 bits as an
index into the table.
Picking the lock this way insures that accesses to the same data at
the same time will go to the same lock. OTOH, accesses to different
data have only a 1/32 chance of hitting the same lock. That should
pretty much eliminate the chances of several atomic operations on
different data from waiting on the same "big lock". If it isn't
then the table of locks can be expanded to a new size so long as
the new size is a power of two.
*/
static SDL_SpinLock locks[32] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
static __inline__ void
privateWaitLock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif /* SIZEOF_VOIDP */
SDL_AtomicLock(&locks[index]);
}
static __inline__ void
privateUnlock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif /* SIZEOF_VOIDP */
SDL_AtomicUnlock(&locks[index]);
}
/* 32 bit atomic operations */
SDL_bool
SDL_AtomicTestThenSet32(volatile Uint32 * ptr)
{
#ifdef nativeTestThenSet32
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif /* nativeTestThenSet32 */
}
void
SDL_AtomicClear32(volatile Uint32 * ptr)
{
#ifdef nativeClear32
atomic_clr(ptr, 0xFFFFFFFF);
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif /* nativeClear32 */
}
Uint32
SDL_AtomicFetchThenIncrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenIncrement32
return atomic_add_value(ptr, 0x00000001);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif /* nativeFetchThenIncrement32 */
}
Uint32
SDL_AtomicFetchThenDecrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenDecrement32
return atomic_sub_value(ptr, 0x00000001);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif /* nativeFetchThenDecrement32 */
}
Uint32
SDL_AtomicFetchThenAdd32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenAdd32
return atomic_add_value(ptr, value);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif /* nativeFetchThenAdd32 */
}
Uint32
SDL_AtomicFetchThenSubtract32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenSubtract32
return atomic_sub_value(ptr, value);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif /* nativeFetchThenSubtract32 */
}
Uint32
SDL_AtomicIncrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeIncrementThenFetch32
atomic_add(ptr, 0x00000001);
return atomic_add_value(ptr, 0x00000000);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif /* nativeIncrementThenFetch32 */
}
Uint32
SDL_AtomicDecrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeDecrementThenFetch32
atomic_sub(ptr, 0x00000001);
return atomic_sub_value(ptr, 0x00000000);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif /* nativeDecrementThenFetch32 */
}
Uint32
SDL_AtomicAddThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeAddThenFetch32
atomic_add(ptr, value);
return atomic_add_value(ptr, 0x00000000);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif /* nativeAddThenFetch32 */
}
Uint32
SDL_AtomicSubtractThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeSubtractThenFetch32
atomic_sub(ptr, value);
return atomic_sub_value(ptr, 0x00000000);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif /* nativeSubtractThenFetch32 */
}
/* 64 bit atomic operations */
#ifdef SDL_HAS_64BIT_TYPE
SDL_bool
SDL_AtomicTestThenSet64(volatile Uint64 * ptr)
{
#ifdef nativeTestThenSet64
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif /* nativeTestThenSet64 */
}
void
SDL_AtomicClear64(volatile Uint64 * ptr)
{
#ifdef nativeClear64
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif /* nativeClear64 */
}
Uint64
SDL_AtomicFetchThenIncrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenIncrement64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif /* nativeFetchThenIncrement64 */
}
Uint64
SDL_AtomicFetchThenDecrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenDecrement64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif /* nativeFetchThenDecrement64 */
}
Uint64
SDL_AtomicFetchThenAdd64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenAdd64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif /* nativeFetchThenAdd64 */
}
Uint64
SDL_AtomicFetchThenSubtract64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenSubtract64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif /* nativeFetchThenSubtract64 */
}
Uint64
SDL_AtomicIncrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeIncrementThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif /* nativeIncrementThenFetch64 */
}
Uint64
SDL_AtomicDecrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeDecrementThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif /* nativeDecrementThenFetch64 */
}
Uint64
SDL_AtomicAddThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeAddThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif /* nativeAddThenFetch64 */
}
Uint64
SDL_AtomicSubtractThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeSubtractThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif /* nativeSubtractThenFetch64 */
}
#endif /* SDL_HAS_64BIT_TYPE */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
Contributed by Bob Pendleton, bob@pendleton.com
*/
#include "SDL_stdinc.h"
#include "SDL_atomic.h"
#include "SDL_error.h"
#include "Windows.h"
/*
This file provides 32, and 64 bit atomic operations. If the
operations are provided by the native hardware and operating system
they are used. If they are not then the operations are emulated
using the SDL spin lock operations. If spin lock can not be
implemented then these functions must fail.
*/
/*
WIN32 VERSION.
This makes use of native Windows atomic operations.
*/
/*
Native spinlock routines. Because this is the dummy implementation
these will always call SDL_SetError() and do nothing.
*/
void
SDL_AtomicLock(SDL_SpinLock *lock)
{
long volatile * l = (long volatile *)lock;
Uint32 old = 0;
Uint32 new = 1;
old = InterlockedExchange(l, new);
while(1 == old)
{
old = InterlockedExchange(l, new);
}
}
void
SDL_AtomicUnlock(SDL_SpinLock *lock)
{
long volatile * l = (long volatile *)lock;
Uint32 new = 0;
InterlockedExchange(l, new);
}
/*
Note that platform specific versions can be built from this version
by changing the #undefs to #defines and adding platform specific
code.
*/
#define nativeTestThenSet32
#define nativeClear32
#define nativeFetchThenIncrement32
#define nativeFetchThenDecrement32
#define nativeFetchThenAdd32
#define nativeFetchThenSubtract32
#define nativeIncrementThenFetch32
#define nativeDecrementThenFetch32
#define nativeAddThenFetch32
#define nativeSubtractThenFetch32
#undef nativeTestThenSet64
#undef nativeClear64
#undef nativeFetchThenIncrement64
#undef nativeFetchThenDecrement64
#undef nativeFetchThenAdd64
#undef nativeFetchThenSubtract64
#undef nativeIncrementThenFetch64
#undef nativeDecrementThenFetch64
#undef nativeAddThenFetch64
#undef nativeSubtractThenFetch64
/*
If any of the operations are not provided then we must emulate some
of them. That means we need a nice implementation of spin locks
that avoids the "one big lock" problem. We use a vector of spin
locks and pick which one to use based on the address of the operand
of the function.
To generate the index of the lock we first shift by 3 bits to get
rid on the zero bits that result from 32 and 64 bit allignment of
data. We then mask off all but 5 bits and use those 5 bits as an
index into the table.
Picking the lock this way insures that accesses to the same data at
the same time will go to the same lock. OTOH, accesses to different
data have only a 1/32 chance of hitting the same lock. That should
pretty much eliminate the chances of several atomic operations on
different data from waiting on the same "big lock". If it isn't
then the table of locks can be expanded to a new size so long as
the new size is a power of two.
*/
static SDL_SpinLock locks[32] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
static __inline__ void
privateWaitLock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif
SDL_AtomicLock(&locks[index]);
}
static __inline__ void
privateUnlock(volatile void *ptr)
{
#if SIZEOF_VOIDP == 4
Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
#elif SIZEOF_VOIDP == 8
Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
#endif
SDL_AtomicUnlock(&locks[index]);
}
/* 32 bit atomic operations */
SDL_bool
SDL_AtomicTestThenSet32(volatile Uint32 * ptr)
{
#ifdef nativeTestThenSet32
long volatile * p = (long volatile *)ptr;
Uint32 new = 1;
return 0 == InterlockedExchange(p, new);
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif
}
void
SDL_AtomicClear32(volatile Uint32 * ptr)
{
#ifdef nativeClear32
long volatile * p = (long volatile *)ptr;
Uint32 new = 0;
InterlockedExchange(p, new);
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif
}
Uint32
SDL_AtomicFetchThenIncrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenIncrement32
long volatile * p = (long volatile *)ptr;
return InterlockedExchangeAdd(p, 1);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenDecrement32(volatile Uint32 * ptr)
{
#ifdef nativeFetchThenDecrement32
long volatile * p = (long volatile *)ptr;
return InterlockedExchangeAdd(p, -1);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenAdd32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenAdd32
long volatile * p = (long volatile *)ptr;
return InterlockedExchangeAdd(p, value);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicFetchThenSubtract32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeFetchThenSubtract32
long volatile * p = (long volatile *)ptr;
return InterlockedExchangeAdd(p, (0 - value));
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicIncrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeIncrementThenFetch32
long volatile * p = (LONG volatile *)ptr;
return InterlockedIncrement(p);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicDecrementThenFetch32(volatile Uint32 * ptr)
{
#ifdef nativeDecrementThenFetch32
long volatile * p = (LONG volatile *)ptr;
return InterlockedDecrement(p);
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicAddThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeAddThenFetch32
long volatile * p = (long volatile *)ptr;
return InterlockedExchangeAdd(p, value) + value;
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint32
SDL_AtomicSubtractThenFetch32(volatile Uint32 * ptr, Uint32 value)
{
#ifdef nativeSubtractThenFetch32
long volatile * p = (long volatile *)ptr;
return InterlockedExchangeAdd(p, (0 - value)) - value;
#else
Uint32 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
/* 64 bit atomic operations */
#ifdef SDL_HAS_64BIT_TYPE
SDL_bool
SDL_AtomicTestThenSet64(volatile Uint64 * ptr)
{
#ifdef nativeTestThenSet64
#else
SDL_bool result = SDL_FALSE;
privateWaitLock(ptr);
result = (*ptr == 0);
if (result)
{
*ptr = 1;
}
privateUnlock(ptr);
return result;
#endif
}
void
SDL_AtomicClear64(volatile Uint64 * ptr)
{
#ifdef nativeClear64
#else
privateWaitLock(ptr);
*ptr = 0;
privateUnlock(ptr);
return;
#endif
}
Uint64
SDL_AtomicFetchThenIncrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenIncrement64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenDecrement64(volatile Uint64 * ptr)
{
#ifdef nativeFetchThenDecrement64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr) -= 1;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenAdd64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenAdd64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)+= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicFetchThenSubtract64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeFetchThenSubtract64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
tmp = *ptr;
(*ptr)-= value;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicIncrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeIncrementThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicDecrementThenFetch64(volatile Uint64 * ptr)
{
#ifdef nativeDecrementThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= 1;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicAddThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeAddThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)+= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
Uint64
SDL_AtomicSubtractThenFetch64(volatile Uint64 * ptr, Uint64 value)
{
#ifdef nativeSubtractThenFetch64
#else
Uint64 tmp = 0;
privateWaitLock(ptr);
(*ptr)-= value;
tmp = *ptr;
privateUnlock(ptr);
return tmp;
#endif
}
#endif

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Functions and variables exported from SDL_audio.c for SDL_sysaudio.c */
/* Functions to get a list of "close" audio formats */
extern SDL_AudioFormat SDL_FirstAudioFormat(SDL_AudioFormat format);
extern SDL_AudioFormat SDL_NextAudioFormat(void);
/* Function to calculate the size and silence for a SDL_AudioSpec */
extern void SDL_CalculateAudioSpec(SDL_AudioSpec * spec);
/* The actual mixing thread function */
extern int SDLCALL SDL_RunAudio(void *audiop);
/* this is used internally to access some autogenerated code. */
typedef struct
{
SDL_AudioFormat src_fmt;
SDL_AudioFormat dst_fmt;
SDL_AudioFilter filter;
} SDL_AudioTypeFilters;
extern const SDL_AudioTypeFilters sdl_audio_type_filters[];
/* this is used internally to access some autogenerated code. */
typedef struct
{
SDL_AudioFormat fmt;
int channels;
int upsample;
int multiple;
SDL_AudioFilter filter;
} SDL_AudioRateFilters;
extern const SDL_AudioRateFilters sdl_audio_rate_filters[];
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Get the name of the audio device we use for output */
#if SDL_AUDIO_DRIVER_BSD || SDL_AUDIO_DRIVER_OSS || SDL_AUDIO_DRIVER_SUNAUDIO
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "SDL_stdinc.h"
#include "SDL_audiodev_c.h"
#ifndef _PATH_DEV_DSP
#if defined(__NETBSD__) || defined(__OPENBSD__)
#define _PATH_DEV_DSP "/dev/audio"
#else
#define _PATH_DEV_DSP "/dev/dsp"
#endif
#endif
#ifndef _PATH_DEV_DSP24
#define _PATH_DEV_DSP24 "/dev/sound/dsp"
#endif
#ifndef _PATH_DEV_AUDIO
#define _PATH_DEV_AUDIO "/dev/audio"
#endif
static inline void
test_device(const char *fname, int flags, int (*test) (int fd),
char ***devices, int *devCount)
{
struct stat sb;
if ((stat(fname, &sb) == 0) && (S_ISCHR(sb.st_mode))) {
int audio_fd = open(fname, flags, 0);
if ((audio_fd >= 0) && (test(audio_fd))) {
void *p =
SDL_realloc(*devices, ((*devCount) + 1) * sizeof(char *));
if (p != NULL) {
size_t len = strlen(fname) + 1;
char *str = (char *) SDL_malloc(len);
*devices = (char **) p;
if (str != NULL) {
SDL_strlcpy(str, fname, len);
(*devices)[(*devCount)++] = str;
}
}
close(audio_fd);
}
}
}
void
SDL_FreeUnixAudioDevices(char ***devices, int *devCount)
{
int i = *devCount;
if ((i > 0) && (*devices != NULL)) {
while (i--) {
SDL_free((*devices)[i]);
}
}
if (*devices != NULL) {
SDL_free(*devices);
}
*devices = NULL;
*devCount = 0;
}
static int
test_stub(int fd)
{
return 1;
}
void
SDL_EnumUnixAudioDevices(int flags, int classic, int (*test) (int fd),
char ***devices, int *devCount)
{
const char *audiodev;
char audiopath[1024];
if (test == NULL)
test = test_stub;
/* Figure out what our audio device is */
if (((audiodev = SDL_getenv("SDL_PATH_DSP")) == NULL) &&
((audiodev = SDL_getenv("AUDIODEV")) == NULL)) {
if (classic) {
audiodev = _PATH_DEV_AUDIO;
} else {
struct stat sb;
/* Added support for /dev/sound/\* in Linux 2.4 */
if (((stat("/dev/sound", &sb) == 0) && S_ISDIR(sb.st_mode))
&& ((stat(_PATH_DEV_DSP24, &sb) == 0)
&& S_ISCHR(sb.st_mode))) {
audiodev = _PATH_DEV_DSP24;
} else {
audiodev = _PATH_DEV_DSP;
}
}
}
test_device(audiodev, flags, test, devices, devCount);
if (SDL_strlen(audiodev) < (sizeof(audiopath) - 3)) {
int instance = 0;
while (instance++ <= 64) {
SDL_snprintf(audiopath, SDL_arraysize(audiopath),
"%s%d", audiodev, instance);
test_device(audiopath, flags, test, devices, devCount);
}
}
}
#endif /* Audio driver selection */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
void SDL_EnumUnixAudioDevices(int flags, int classic, int (*test) (int fd),
char ***devs, int *count);
void SDL_FreeUnixAudioDevices(char ***devices, int *devCount);
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#define SDL_AllocAudioMem SDL_malloc
#define SDL_FreeAudioMem SDL_free
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* This provides the default mixing callback for the SDL audio routines */
#include "SDL_cpuinfo.h"
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "SDL_sysaudio.h"
#include "SDL_mixer_MMX.h"
#include "SDL_mixer_MMX_VC.h"
#include "SDL_mixer_m68k.h"
/* This table is used to add two sound values together and pin
* the value to avoid overflow. (used with permission from ARDI)
* Changed to use 0xFE instead of 0xFF for better sound quality.
*/
static const Uint8 mix8[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24,
0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A,
0x3B, 0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45,
0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B,
0x5C, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71,
0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C,
0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92,
0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D,
0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,
0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3,
0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE,
0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9,
0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4,
0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA,
0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5,
0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE
};
/* The volume ranges from 0 - 128 */
#define ADJUST_VOLUME(s, v) (s = (s*v)/SDL_MIX_MAXVOLUME)
#define ADJUST_VOLUME_U8(s, v) (s = (((s-128)*v)/SDL_MIX_MAXVOLUME)+128)
void
SDL_MixAudioFormat(Uint8 * dst, const Uint8 * src, SDL_AudioFormat format,
Uint32 len, int volume)
{
if (volume == 0) {
return;
}
switch (format) {
case AUDIO_U8:
{
#if defined(__GNUC__) && defined(__M68000__) && defined(SDL_ASSEMBLY_ROUTINES)
SDL_MixAudio_m68k_U8((char *) dst, (char *) src,
(unsigned long) len, (long) volume,
(char *) mix8);
#else
Uint8 src_sample;
while (len--) {
src_sample = *src;
ADJUST_VOLUME_U8(src_sample, volume);
*dst = mix8[*dst + src_sample];
++dst;
++src;
}
#endif
}
break;
case AUDIO_S8:
{
#if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
if (SDL_HasMMX()) {
SDL_MixAudio_MMX_S8((char *) dst, (char *) src,
(unsigned int) len, (int) volume);
} else
#elif ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
if (SDL_HasMMX()) {
SDL_MixAudio_MMX_S8_VC((char *) dst, (char *) src,
(unsigned int) len, (int) volume);
} else
#endif
#if defined(__GNUC__) && defined(__M68000__) && defined(SDL_ASSEMBLY_ROUTINES)
SDL_MixAudio_m68k_S8((char *) dst, (char *) src,
(unsigned long) len, (long) volume);
#else
{
Sint8 *dst8, *src8;
Sint8 src_sample;
int dst_sample;
const int max_audioval = ((1 << (8 - 1)) - 1);
const int min_audioval = -(1 << (8 - 1));
src8 = (Sint8 *) src;
dst8 = (Sint8 *) dst;
while (len--) {
src_sample = *src8;
ADJUST_VOLUME(src_sample, volume);
dst_sample = *dst8 + src_sample;
if (dst_sample > max_audioval) {
*dst8 = max_audioval;
} else if (dst_sample < min_audioval) {
*dst8 = min_audioval;
} else {
*dst8 = dst_sample;
}
++dst8;
++src8;
}
}
#endif
}
break;
case AUDIO_S16LSB:
{
#if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
if (SDL_HasMMX()) {
SDL_MixAudio_MMX_S16((char *) dst, (char *) src,
(unsigned int) len, (int) volume);
} else
#elif ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
if (SDL_HasMMX()) {
SDL_MixAudio_MMX_S16_VC((char *) dst, (char *) src,
(unsigned int) len, (int) volume);
} else
#endif
#if defined(__GNUC__) && defined(__M68000__) && defined(SDL_ASSEMBLY_ROUTINES)
SDL_MixAudio_m68k_S16LSB((short *) dst, (short *) src,
(unsigned long) len, (long) volume);
#else
{
Sint16 src1, src2;
int dst_sample;
const int max_audioval = ((1 << (16 - 1)) - 1);
const int min_audioval = -(1 << (16 - 1));
len /= 2;
while (len--) {
src1 = ((src[1]) << 8 | src[0]);
ADJUST_VOLUME(src1, volume);
src2 = ((dst[1]) << 8 | dst[0]);
src += 2;
dst_sample = src1 + src2;
if (dst_sample > max_audioval) {
dst_sample = max_audioval;
} else if (dst_sample < min_audioval) {
dst_sample = min_audioval;
}
dst[0] = dst_sample & 0xFF;
dst_sample >>= 8;
dst[1] = dst_sample & 0xFF;
dst += 2;
}
}
#endif
}
break;
case AUDIO_S16MSB:
{
#if defined(__GNUC__) && defined(__M68000__) && defined(SDL_ASSEMBLY_ROUTINES)
SDL_MixAudio_m68k_S16MSB((short *) dst, (short *) src,
(unsigned long) len, (long) volume);
#else
Sint16 src1, src2;
int dst_sample;
const int max_audioval = ((1 << (16 - 1)) - 1);
const int min_audioval = -(1 << (16 - 1));
len /= 2;
while (len--) {
src1 = ((src[0]) << 8 | src[1]);
ADJUST_VOLUME(src1, volume);
src2 = ((dst[0]) << 8 | dst[1]);
src += 2;
dst_sample = src1 + src2;
if (dst_sample > max_audioval) {
dst_sample = max_audioval;
} else if (dst_sample < min_audioval) {
dst_sample = min_audioval;
}
dst[1] = dst_sample & 0xFF;
dst_sample >>= 8;
dst[0] = dst_sample & 0xFF;
dst += 2;
}
#endif
}
break;
case AUDIO_S32LSB:
{
const Uint32 *src32 = (Uint32 *) src;
Uint32 *dst32 = (Uint32 *) dst;
Sint64 src1, src2;
Sint64 dst_sample;
const Sint64 max_audioval = ((((Sint64) 1) << (32 - 1)) - 1);
const Sint64 min_audioval = -(((Sint64) 1) << (32 - 1));
len /= 4;
while (len--) {
src1 = (Sint64) ((Sint32) SDL_SwapLE32(*src32));
src32++;
ADJUST_VOLUME(src1, volume);
src2 = (Sint64) ((Sint32) SDL_SwapLE32(*dst32));
dst_sample = src1 + src2;
if (dst_sample > max_audioval) {
dst_sample = max_audioval;
} else if (dst_sample < min_audioval) {
dst_sample = min_audioval;
}
*(dst32++) = SDL_SwapLE32((Uint32) ((Sint32) dst_sample));
}
}
break;
case AUDIO_S32MSB:
{
const Uint32 *src32 = (Uint32 *) src;
Uint32 *dst32 = (Uint32 *) dst;
Sint64 src1, src2;
Sint64 dst_sample;
const Sint64 max_audioval = ((((Sint64) 1) << (32 - 1)) - 1);
const Sint64 min_audioval = -(((Sint64) 1) << (32 - 1));
len /= 4;
while (len--) {
src1 = (Sint64) ((Sint32) SDL_SwapBE32(*src32));
src32++;
ADJUST_VOLUME(src1, volume);
src2 = (Sint64) ((Sint32) SDL_SwapBE32(*dst32));
dst_sample = src1 + src2;
if (dst_sample > max_audioval) {
dst_sample = max_audioval;
} else if (dst_sample < min_audioval) {
dst_sample = min_audioval;
}
*(dst32++) = SDL_SwapBE32((Uint32) ((Sint32) dst_sample));
}
}
break;
case AUDIO_F32LSB:
{
const float fmaxvolume = 1.0f / ((float) SDL_MIX_MAXVOLUME);
const float fvolume = (float) volume;
const float *src32 = (float *) src;
float *dst32 = (float *) dst;
float src1, src2;
double dst_sample;
/* !!! FIXME: are these right? */
const double max_audioval = 3.402823466e+38F;
const double min_audioval = -3.402823466e+38F;
len /= 4;
while (len--) {
src1 = ((SDL_SwapFloatLE(*src32) * fvolume) * fmaxvolume);
src2 = SDL_SwapFloatLE(*dst32);
src32++;
dst_sample = ((double) src1) + ((double) src2);
if (dst_sample > max_audioval) {
dst_sample = max_audioval;
} else if (dst_sample < min_audioval) {
dst_sample = min_audioval;
}
*(dst32++) = SDL_SwapFloatLE((float) dst_sample);
}
}
break;
case AUDIO_F32MSB:
{
const float fmaxvolume = 1.0f / ((float) SDL_MIX_MAXVOLUME);
const float fvolume = (float) volume;
const float *src32 = (float *) src;
float *dst32 = (float *) dst;
float src1, src2;
double dst_sample;
/* !!! FIXME: are these right? */
const double max_audioval = 3.402823466e+38F;
const double min_audioval = -3.402823466e+38F;
len /= 4;
while (len--) {
src1 = ((SDL_SwapFloatBE(*src32) * fvolume) * fmaxvolume);
src2 = SDL_SwapFloatBE(*dst32);
src32++;
dst_sample = ((double) src1) + ((double) src2);
if (dst_sample > max_audioval) {
dst_sample = max_audioval;
} else if (dst_sample < min_audioval) {
dst_sample = min_audioval;
}
*(dst32++) = SDL_SwapFloatBE((float) dst_sample);
}
}
break;
default: /* If this happens... FIXME! */
SDL_SetError("SDL_MixAudio(): unknown audio format");
return;
}
}
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/*
MMX assembler version of SDL_MixAudio for signed little endian 16 bit samples and signed 8 bit samples
Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
This code is licensed under the LGPL (see COPYING for details)
Assumes buffer size in bytes is a multiple of 16
Assumes SDL_MIX_MAXVOLUME = 128
*/
/***********************************************
* Mixing for 16 bit signed buffers
***********************************************/
#if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
void
SDL_MixAudio_MMX_S16(char *dst, char *src, unsigned int size, int volume)
{
__asm__ __volatile__(" movl %3,%%eax\n" /* eax = volume */
" movl %2,%%edx\n" /* edx = size */
" shrl $4,%%edx\n" /* process 16 bytes per iteration = 8 samples */
" jz .endS16\n" " pxor %%mm0,%%mm0\n" " movd %%eax,%%mm0\n" " movq %%mm0,%%mm1\n" " psllq $16,%%mm0\n" " por %%mm1,%%mm0\n" " psllq $16,%%mm0\n" " por %%mm1,%%mm0\n" " psllq $16,%%mm0\n" " por %%mm1,%%mm0\n" /* mm0 = vol|vol|vol|vol */
".align 8\n" " .mixloopS16:\n" " movq (%1),%%mm1\n" /* mm1 = a|b|c|d */
" movq %%mm1,%%mm2\n" /* mm2 = a|b|c|d */
" movq 8(%1),%%mm4\n" /* mm4 = e|f|g|h */
/* pré charger le buffer dst dans mm7 */
" movq (%0),%%mm7\n" /* mm7 = dst[0] */
/* multiplier par le volume */
" pmullw %%mm0,%%mm1\n" /* mm1 = l(a*v)|l(b*v)|l(c*v)|l(d*v) */
" pmulhw %%mm0,%%mm2\n" /* mm2 = h(a*v)|h(b*v)|h(c*v)|h(d*v) */
" movq %%mm4,%%mm5\n" /* mm5 = e|f|g|h */
" pmullw %%mm0,%%mm4\n" /* mm4 = l(e*v)|l(f*v)|l(g*v)|l(h*v) */
" pmulhw %%mm0,%%mm5\n" /* mm5 = h(e*v)|h(f*v)|h(g*v)|h(h*v) */
" movq %%mm1,%%mm3\n" /* mm3 = l(a*v)|l(b*v)|l(c*v)|l(d*v) */
" punpckhwd %%mm2,%%mm1\n" /* mm1 = a*v|b*v */
" movq %%mm4,%%mm6\n" /* mm6 = l(e*v)|l(f*v)|l(g*v)|l(h*v) */
" punpcklwd %%mm2,%%mm3\n" /* mm3 = c*v|d*v */
" punpckhwd %%mm5,%%mm4\n" /* mm4 = e*f|f*v */
" punpcklwd %%mm5,%%mm6\n" /* mm6 = g*v|h*v */
/* pré charger le buffer dst dans mm5 */
" movq 8(%0),%%mm5\n" /* mm5 = dst[1] */
/* diviser par 128 */
" psrad $7,%%mm1\n" /* mm1 = a*v/128|b*v/128 , 128 = SDL_MIX_MAXVOLUME */
" add $16,%1\n" " psrad $7,%%mm3\n" /* mm3 = c*v/128|d*v/128 */
" psrad $7,%%mm4\n" /* mm4 = e*v/128|f*v/128 */
/* mm1 = le sample avec le volume modifié */
" packssdw %%mm1,%%mm3\n" /* mm3 = s(a*v|b*v|c*v|d*v) */
" psrad $7,%%mm6\n" /* mm6= g*v/128|h*v/128 */
" paddsw %%mm7,%%mm3\n" /* mm3 = adjust_volume(src)+dst */
/* mm4 = le sample avec le volume modifié */
" packssdw %%mm4,%%mm6\n" /* mm6 = s(e*v|f*v|g*v|h*v) */
" movq %%mm3,(%0)\n" " paddsw %%mm5,%%mm6\n" /* mm6 = adjust_volume(src)+dst */
" movq %%mm6,8(%0)\n"
" add $16,%0\n"
" dec %%edx\n"
" jnz .mixloopS16\n"
" emms\n"
".endS16:\n"::"r"(dst), "r"(src),
"m"(size), "m"(volume):"eax", "edx", "memory");
}
/*////////////////////////////////////////////// */
/* Mixing for 8 bit signed buffers */
/*////////////////////////////////////////////// */
void
SDL_MixAudio_MMX_S8(char *dst, char *src, unsigned int size, int volume)
{
__asm__ __volatile__(" movl %3,%%eax\n" /* eax = volume */
" movd %%eax,%%mm0\n" " movq %%mm0,%%mm1\n" " psllq $16,%%mm0\n" " por %%mm1,%%mm0\n" " psllq $16,%%mm0\n" " por %%mm1,%%mm0\n" " psllq $16,%%mm0\n" " por %%mm1,%%mm0\n" " movl %2,%%edx\n" /* edx = size */
" shr $3,%%edx\n" /* process 8 bytes per iteration = 8 samples */
" cmp $0,%%edx\n" " je .endS8\n" ".align 8\n" " .mixloopS8:\n" " pxor %%mm2,%%mm2\n" /* mm2 = 0 */
" movq (%1),%%mm1\n" /* mm1 = a|b|c|d|e|f|g|h */
" movq %%mm1,%%mm3\n" /* mm3 = a|b|c|d|e|f|g|h */
/* on va faire le "sign extension" en faisant un cmp avec 0 qui retourne 1 si <0, 0 si >0 */
" pcmpgtb %%mm1,%%mm2\n" /* mm2 = 11111111|00000000|00000000.... */
" punpckhbw %%mm2,%%mm1\n" /* mm1 = 0|a|0|b|0|c|0|d */
" punpcklbw %%mm2,%%mm3\n" /* mm3 = 0|e|0|f|0|g|0|h */
" movq (%0),%%mm2\n" /* mm2 = destination */
" pmullw %%mm0,%%mm1\n" /* mm1 = v*a|v*b|v*c|v*d */
" add $8,%1\n" " pmullw %%mm0,%%mm3\n" /* mm3 = v*e|v*f|v*g|v*h */
" psraw $7,%%mm1\n" /* mm1 = v*a/128|v*b/128|v*c/128|v*d/128 */
" psraw $7,%%mm3\n" /* mm3 = v*e/128|v*f/128|v*g/128|v*h/128 */
" packsswb %%mm1,%%mm3\n" /* mm1 = v*a/128|v*b/128|v*c/128|v*d/128|v*e/128|v*f/128|v*g/128|v*h/128 */
" paddsb %%mm2,%%mm3\n" /* add to destination buffer */
" movq %%mm3,(%0)\n" /* store back to ram */
" add $8,%0\n"
" dec %%edx\n"
" jnz .mixloopS8\n"
".endS8:\n"
" emms\n"::"r"(dst), "r"(src), "m"(size),
"m"(volume):"eax", "edx", "memory");
}
#endif
/* vi: set ts=4 sw=4 expandtab: */

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/*
headers for MMX assembler version of SDL_MixAudio
Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
This code is licensed under the LGPL (see COPYING for details)
Assumes buffer size in bytes is a multiple of 16
Assumes SDL_MIX_MAXVOLUME = 128
*/
#include "SDL_config.h"
#if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
void SDL_MixAudio_MMX_S16(char *, char *, unsigned int, int);
void SDL_MixAudio_MMX_S8(char *, char *, unsigned int, int);
#endif
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#include "SDL_mixer_MMX_VC.h"
#if ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
// MMX assembler version of SDL_MixAudio for signed little endian 16 bit samples and signed 8 bit samples
// Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
// Converted to Intel ASM notation by Cth
// This code is licensed under the LGPL (see COPYING for details)
//
// Assumes buffer size in bytes is a multiple of 16
// Assumes SDL_MIX_MAXVOLUME = 128
////////////////////////////////////////////////
// Mixing for 16 bit signed buffers
////////////////////////////////////////////////
void
SDL_MixAudio_MMX_S16_VC(char *dst, char *src, unsigned int nSize, int volume)
{
/* *INDENT-OFF* */
__asm
{
push edi
push esi
push ebx
mov edi, dst // edi = dst
mov esi, src // esi = src
mov eax, volume // eax = volume
mov ebx, nSize // ebx = size
shr ebx, 4 // process 16 bytes per iteration = 8 samples
jz endS16
pxor mm0, mm0
movd mm0, eax //%%eax,%%mm0
movq mm1, mm0 //%%mm0,%%mm1
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0 // mm0 = vol|vol|vol|vol
#ifndef __WATCOMC__
align 16
#endif
mixloopS16:
movq mm1, [esi] //(%%esi),%%mm1\n" // mm1 = a|b|c|d
movq mm2, mm1 //%%mm1,%%mm2\n" // mm2 = a|b|c|d
movq mm4, [esi + 8] //8(%%esi),%%mm4\n" // mm4 = e|f|g|h
// pre charger le buffer dst dans mm7
movq mm7, [edi] //(%%edi),%%mm7\n" // mm7 = dst[0]"
// multiplier par le volume
pmullw mm1, mm0 //%%mm0,%%mm1\n" // mm1 = l(a*v)|l(b*v)|l(c*v)|l(d*v)
pmulhw mm2, mm0 //%%mm0,%%mm2\n" // mm2 = h(a*v)|h(b*v)|h(c*v)|h(d*v)
movq mm5, mm4 //%%mm4,%%mm5\n" // mm5 = e|f|g|h
pmullw mm4, mm0 //%%mm0,%%mm4\n" // mm4 = l(e*v)|l(f*v)|l(g*v)|l(h*v)
pmulhw mm5, mm0 //%%mm0,%%mm5\n" // mm5 = h(e*v)|h(f*v)|h(g*v)|h(h*v)
movq mm3, mm1 //%%mm1,%%mm3\n" // mm3 = l(a*v)|l(b*v)|l(c*v)|l(d*v)
punpckhwd mm1, mm2 //%%mm2,%%mm1\n" // mm1 = a*v|b*v
movq mm6, mm4 //%%mm4,%%mm6\n" // mm6 = l(e*v)|l(f*v)|l(g*v)|l(h*v)
punpcklwd mm3, mm2 //%%mm2,%%mm3\n" // mm3 = c*v|d*v
punpckhwd mm4, mm5 //%%mm5,%%mm4\n" // mm4 = e*f|f*v
punpcklwd mm6, mm5 //%%mm5,%%mm6\n" // mm6 = g*v|h*v
// pre charger le buffer dst dans mm5
movq mm5, [edi + 8] //8(%%edi),%%mm5\n" // mm5 = dst[1]
// diviser par 128
psrad mm1, 7 //$7,%%mm1\n" // mm1 = a*v/128|b*v/128 , 128 = SDL_MIX_MAXVOLUME
add esi, 16 //$16,%%esi\n"
psrad mm3, 7 //$7,%%mm3\n" // mm3 = c*v/128|d*v/128
psrad mm4, 7 //$7,%%mm4\n" // mm4 = e*v/128|f*v/128
// mm1 = le sample avec le volume modifie
packssdw mm3, mm1 //%%mm1,%%mm3\n" // mm3 = s(a*v|b*v|c*v|d*v)
psrad mm6, 7 //$7,%%mm6\n" // mm6= g*v/128|h*v/128
paddsw mm3, mm7 //%%mm7,%%mm3\n" // mm3 = adjust_volume(src)+dst
// mm4 = le sample avec le volume modifie
packssdw mm6, mm4 //%%mm4,%%mm6\n" // mm6 = s(e*v|f*v|g*v|h*v)
movq [edi], mm3 //%%mm3,(%%edi)\n"
paddsw mm6, mm5 //%%mm5,%%mm6\n" // mm6 = adjust_volume(src)+dst
movq [edi + 8], mm6 //%%mm6,8(%%edi)\n"
add edi, 16 //$16,%%edi\n"
dec ebx //%%ebx\n"
jnz mixloopS16
endS16:
emms
pop ebx
pop esi
pop edi
}
/* *INDENT-ON* */
}
////////////////////////////////////////////////
// Mixing for 8 bit signed buffers
////////////////////////////////////////////////
void
SDL_MixAudio_MMX_S8_VC(char *dst, char *src, unsigned int nSize, int volume)
{
/* *INDENT-OFF* */
_asm
{
push edi
push esi
push ebx
mov edi, dst //movl %0,%%edi // edi = dst
mov esi, src //%1,%%esi // esi = src
mov eax, volume //%3,%%eax // eax = volume
movd mm0, eax //%%eax,%%mm0
movq mm1, mm0 //%%mm0,%%mm1
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
mov ebx, nSize //%2,%%ebx // ebx = size
shr ebx, 3 //$3,%%ebx // process 8 bytes per iteration = 8 samples
cmp ebx, 0 //$0,%%ebx
je endS8
#ifndef __WATCOMC__
align 16
#endif
mixloopS8:
pxor mm2, mm2 //%%mm2,%%mm2 // mm2 = 0
movq mm1, [esi] //(%%esi),%%mm1 // mm1 = a|b|c|d|e|f|g|h
movq mm3, mm1 //%%mm1,%%mm3 // mm3 = a|b|c|d|e|f|g|h
// on va faire le "sign extension" en faisant un cmp avec 0 qui retourne 1 si <0, 0 si >0
pcmpgtb mm2, mm1 //%%mm1,%%mm2 // mm2 = 11111111|00000000|00000000....
punpckhbw mm1, mm2 //%%mm2,%%mm1 // mm1 = 0|a|0|b|0|c|0|d
punpcklbw mm3, mm2 //%%mm2,%%mm3 // mm3 = 0|e|0|f|0|g|0|h
movq mm2, [edi] //(%%edi),%%mm2 // mm2 = destination
pmullw mm1, mm0 //%%mm0,%%mm1 // mm1 = v*a|v*b|v*c|v*d
add esi, 8 //$8,%%esi
pmullw mm3, mm0 //%%mm0,%%mm3 // mm3 = v*e|v*f|v*g|v*h
psraw mm1, 7 //$7,%%mm1 // mm1 = v*a/128|v*b/128|v*c/128|v*d/128
psraw mm3, 7 //$7,%%mm3 // mm3 = v*e/128|v*f/128|v*g/128|v*h/128
packsswb mm3, mm1 //%%mm1,%%mm3 // mm1 = v*a/128|v*b/128|v*c/128|v*d/128|v*e/128|v*f/128|v*g/128|v*h/128
paddsb mm3, mm2 //%%mm2,%%mm3 // add to destination buffer
movq [edi], mm3 //%%mm3,(%%edi) // store back to ram
add edi, 8 //$8,%%edi
dec ebx //%%ebx
jnz mixloopS8
endS8:
emms
pop ebx
pop esi
pop edi
}
/* *INDENT-ON* */
}
#endif /* SDL_ASSEMBLY_ROUTINES */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#if ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
/* headers for MMX assembler version of SDL_MixAudio
Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
Converted to Intel ASM notation by Cth
This code is licensed under the LGPL (see COPYING for details)
Assumes buffer size in bytes is a multiple of 16
Assumes SDL_MIX_MAXVOLUME = 128
*/
void SDL_MixAudio_MMX_S16_VC(char *, char *, unsigned int, int);
void SDL_MixAudio_MMX_S8_VC(char *, char *, unsigned int, int);
#endif
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/*
m68k assembly mix routines
Patrice Mandin
*/
#if defined(__M68000__) && defined(__GNUC__)
void
SDL_MixAudio_m68k_U8(char *dst, char *src, long len, long volume, char *mix8)
{
__asm__ __volatile__("tstl %2\n" " beqs stoploop_u8\n" "mixloop_u8:\n"
/* Mix a sample */
" moveq #0,%%d0\n" " moveq #0,%%d1\n" " moveb %1@+,%%d0\n" /* d0 = *src++ */
" sub #128,%%d0\n" /* d0 -= 128 */
" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
" moveb %0@,%%d1\n" /* d1 = *dst */
" asr #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
" add #128,%%d0\n" /* d0 += 128 */
" add %%d1,%%d0\n"
" moveb %4@(%%d0:w),%0@+\n"
/* Loop till done */
" subql #1,%2\n" " bhis mixloop_u8\n" "stoploop_u8:\n": /* no return value */
: /* input */
"a"(dst), "a"(src), "d"(len), "d"(volume), "a"(mix8): /* clobbered registers */
"d0", "d1", "cc", "memory");
}
void
SDL_MixAudio_m68k_S8(char *dst, char *src, long len, long volume)
{
__asm__ __volatile__("tstl %2\n"
" beqs stoploop_s8\n"
" moveq #-128,%%d2\n"
" moveq #127,%%d3\n" "mixloop_s8:\n"
/* Mix a sample */
" moveq #0,%%d0\n" " moveq #0,%%d1\n" " moveb %1@+,%%d0\n" /* d0 = *src++ */
" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
" moveb %0@,%%d1\n" /* d1 = *dst */
" asr #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
" add %%d1,%%d0\n"
" cmp %%d2,%%d0\n"
" bges lower_limit_s8\n"
" move %%d2,%%d0\n"
"lower_limit_s8:\n"
" cmp %%d3,%%d0\n"
" bles upper_limit_s8\n"
" move %%d3,%%d0\n"
"upper_limit_s8:\n" " moveb %%d0,%0@+\n"
/* Loop till done */
" subql #1,%2\n" " bhis mixloop_s8\n" "stoploop_s8:\n": /* no return value */
: /* input */
"a"(dst), "a"(src), "d"(len), "d"(volume): /* clobbered registers */
"d0", "d1", "d2", "d3", "cc", "memory");
}
void
SDL_MixAudio_m68k_S16MSB(short *dst, short *src, long len, long volume)
{
__asm__ __volatile__("tstl %2\n"
" beqs stoploop_s16msb\n"
" movel #-32768,%%d2\n"
" movel #32767,%%d3\n"
" lsrl #1,%2\n" "mixloop_s16msb:\n"
/* Mix a sample */
" move %1@+,%%d0\n" /* d0 = *src++ */
" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
" move %0@,%%d1\n" /* d1 = *dst */
" extl %%d1\n" /* extend d1 to 32 bits */
" asrl #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
" addl %%d1,%%d0\n"
" cmpl %%d2,%%d0\n"
" bges lower_limit_s16msb\n"
" move %%d2,%%d0\n"
"lower_limit_s16msb:\n"
" cmpl %%d3,%%d0\n"
" bles upper_limit_s16msb\n"
" move %%d3,%%d0\n"
"upper_limit_s16msb:\n" " move %%d0,%0@+\n"
/* Loop till done */
" subql #1,%2\n" " bhis mixloop_s16msb\n" "stoploop_s16msb:\n": /* no return value */
: /* input */
"a"(dst), "a"(src), "d"(len), "d"(volume): /* clobbered registers */
"d0", "d1", "d2", "d3", "cc", "memory");
}
void
SDL_MixAudio_m68k_S16LSB(short *dst, short *src, long len, long volume)
{
__asm__ __volatile__("tstl %2\n"
" beqs stoploop_s16lsb\n"
" movel #-32768,%%d2\n"
" movel #32767,%%d3\n"
" lsrl #1,%2\n" "mixloop_s16lsb:\n"
/* Mix a sample */
" move %1@+,%%d0\n" /* d0 = *src++ */
" rorw #8,%%d0\n" " muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
" move %0@,%%d1\n" /* d1 = *dst */
" rorw #8,%%d1\n" " extl %%d1\n" /* extend d1 to 32 bits */
" asrl #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
" addl %%d1,%%d0\n"
" cmpl %%d2,%%d0\n"
" bges lower_limit_s16lsb\n"
" move %%d2,%%d0\n"
"lower_limit_s16lsb:\n"
" cmpl %%d3,%%d0\n"
" bles upper_limit_s16lsb\n"
" move %%d3,%%d0\n"
"upper_limit_s16lsb:\n"
" rorw #8,%%d0\n" " move %%d0,%0@+\n"
/* Loop till done */
" subql #1,%2\n" " bhis mixloop_s16lsb\n" "stoploop_s16lsb:\n": /* no return value */
: /* input */
"a"(dst), "a"(src), "d"(len), "d"(volume): /* clobbered registers */
"d0", "d1", "d2", "d3", "cc", "memory");
}
#endif
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/*
m68k assembly mix routines
Patrice Mandin
*/
#if defined(__M68000__) && defined(__GNUC__)
void SDL_MixAudio_m68k_U8(char *dst, char *src, long len, long volume,
char *mix8);
void SDL_MixAudio_m68k_S8(char *dst, char *src, long len, long volume);
void SDL_MixAudio_m68k_S16MSB(short *dst, short *src, long len, long volume);
void SDL_MixAudio_m68k_S16LSB(short *dst, short *src, long len, long volume);
#endif
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is SDL_free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_sysaudio_h
#define _SDL_sysaudio_h
#include "SDL_mutex.h"
#include "SDL_thread.h"
/* The SDL audio driver */
typedef struct SDL_AudioDevice SDL_AudioDevice;
#define _THIS SDL_AudioDevice *_this
typedef struct SDL_AudioDriverImpl
{
int (*DetectDevices) (int iscapture);
const char *(*GetDeviceName) (int index, int iscapture);
int (*OpenDevice) (_THIS, const char *devname, int iscapture);
void (*ThreadInit) (_THIS); /* Called by audio thread at start */
void (*WaitDevice) (_THIS);
void (*PlayDevice) (_THIS);
Uint8 *(*GetDeviceBuf) (_THIS);
void (*WaitDone) (_THIS);
void (*CloseDevice) (_THIS);
void (*LockDevice) (_THIS);
void (*UnlockDevice) (_THIS);
void (*Deinitialize) (void);
/* Some flags to push duplicate code into the core and reduce #ifdefs. */
int ProvidesOwnCallbackThread:1;
int SkipMixerLock:1;
int HasCaptureSupport:1;
int OnlyHasDefaultOutputDevice:1;
int OnlyHasDefaultInputDevice:1;
} SDL_AudioDriverImpl;
typedef struct SDL_AudioDriver
{
/* * * */
/* The name of this audio driver */
const char *name;
/* * * */
/* The description of this audio driver */
const char *desc;
SDL_AudioDriverImpl impl;
} SDL_AudioDriver;
/* Streamer */
typedef struct
{
Uint8 *buffer;
int max_len; /* the maximum length in bytes */
int read_pos, write_pos; /* the position of the write and read heads in bytes */
} SDL_AudioStreamer;
/* Define the SDL audio driver structure */
struct SDL_AudioDevice
{
/* * * */
/* Data common to all devices */
/* The current audio specification (shared with audio thread) */
SDL_AudioSpec spec;
/* An audio conversion block for audio format emulation */
SDL_AudioCVT convert;
/* The streamer, if sample rate conversion necessitates it */
int use_streamer;
SDL_AudioStreamer streamer;
/* Current state flags */
int iscapture;
int enabled;
int paused;
int opened;
/* Fake audio buffer for when the audio hardware is busy */
Uint8 *fake_stream;
/* A semaphore for locking the mixing buffers */
SDL_mutex *mixer_lock;
/* A thread to feed the audio device */
SDL_Thread *thread;
Uint32 threadid;
/* * * */
/* Data private to this driver */
struct SDL_PrivateAudioData *hidden;
};
#undef _THIS
typedef struct AudioBootStrap
{
const char *name;
const char *desc;
int (*init) (SDL_AudioDriverImpl * impl);
int demand_only:1; /* 1==request explicitly, or it won't be available. */
} AudioBootStrap;
#endif /* _SDL_sysaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

633
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Microsoft WAVE file loading routines */
#include "SDL_audio.h"
#include "SDL_wave.h"
static int ReadChunk(SDL_RWops * src, Chunk * chunk);
struct MS_ADPCM_decodestate
{
Uint8 hPredictor;
Uint16 iDelta;
Sint16 iSamp1;
Sint16 iSamp2;
};
static struct MS_ADPCM_decoder
{
WaveFMT wavefmt;
Uint16 wSamplesPerBlock;
Uint16 wNumCoef;
Sint16 aCoeff[7][2];
/* * * */
struct MS_ADPCM_decodestate state[2];
} MS_ADPCM_state;
static int
InitMS_ADPCM(WaveFMT * format)
{
Uint8 *rogue_feel;
Uint16 extra_info;
int i;
/* Set the rogue pointer to the MS_ADPCM specific data */
MS_ADPCM_state.wavefmt.encoding = SDL_SwapLE16(format->encoding);
MS_ADPCM_state.wavefmt.channels = SDL_SwapLE16(format->channels);
MS_ADPCM_state.wavefmt.frequency = SDL_SwapLE32(format->frequency);
MS_ADPCM_state.wavefmt.byterate = SDL_SwapLE32(format->byterate);
MS_ADPCM_state.wavefmt.blockalign = SDL_SwapLE16(format->blockalign);
MS_ADPCM_state.wavefmt.bitspersample =
SDL_SwapLE16(format->bitspersample);
rogue_feel = (Uint8 *) format + sizeof(*format);
if (sizeof(*format) == 16) {
extra_info = ((rogue_feel[1] << 8) | rogue_feel[0]);
rogue_feel += sizeof(Uint16);
}
MS_ADPCM_state.wSamplesPerBlock = ((rogue_feel[1] << 8) | rogue_feel[0]);
rogue_feel += sizeof(Uint16);
MS_ADPCM_state.wNumCoef = ((rogue_feel[1] << 8) | rogue_feel[0]);
rogue_feel += sizeof(Uint16);
if (MS_ADPCM_state.wNumCoef != 7) {
SDL_SetError("Unknown set of MS_ADPCM coefficients");
return (-1);
}
for (i = 0; i < MS_ADPCM_state.wNumCoef; ++i) {
MS_ADPCM_state.aCoeff[i][0] = ((rogue_feel[1] << 8) | rogue_feel[0]);
rogue_feel += sizeof(Uint16);
MS_ADPCM_state.aCoeff[i][1] = ((rogue_feel[1] << 8) | rogue_feel[0]);
rogue_feel += sizeof(Uint16);
}
return (0);
}
static Sint32
MS_ADPCM_nibble(struct MS_ADPCM_decodestate *state,
Uint8 nybble, Sint16 * coeff)
{
const Sint32 max_audioval = ((1 << (16 - 1)) - 1);
const Sint32 min_audioval = -(1 << (16 - 1));
const Sint32 adaptive[] = {
230, 230, 230, 230, 307, 409, 512, 614,
768, 614, 512, 409, 307, 230, 230, 230
};
Sint32 new_sample, delta;
new_sample = ((state->iSamp1 * coeff[0]) +
(state->iSamp2 * coeff[1])) / 256;
if (nybble & 0x08) {
new_sample += state->iDelta * (nybble - 0x10);
} else {
new_sample += state->iDelta * nybble;
}
if (new_sample < min_audioval) {
new_sample = min_audioval;
} else if (new_sample > max_audioval) {
new_sample = max_audioval;
}
delta = ((Sint32) state->iDelta * adaptive[nybble]) / 256;
if (delta < 16) {
delta = 16;
}
state->iDelta = (Uint16) delta;
state->iSamp2 = state->iSamp1;
state->iSamp1 = (Sint16) new_sample;
return (new_sample);
}
static int
MS_ADPCM_decode(Uint8 ** audio_buf, Uint32 * audio_len)
{
struct MS_ADPCM_decodestate *state[2];
Uint8 *freeable, *encoded, *decoded;
Sint32 encoded_len, samplesleft;
Sint8 nybble, stereo;
Sint16 *coeff[2];
Sint32 new_sample;
/* Allocate the proper sized output buffer */
encoded_len = *audio_len;
encoded = *audio_buf;
freeable = *audio_buf;
*audio_len = (encoded_len / MS_ADPCM_state.wavefmt.blockalign) *
MS_ADPCM_state.wSamplesPerBlock *
MS_ADPCM_state.wavefmt.channels * sizeof(Sint16);
*audio_buf = (Uint8 *) SDL_malloc(*audio_len);
if (*audio_buf == NULL) {
SDL_Error(SDL_ENOMEM);
return (-1);
}
decoded = *audio_buf;
/* Get ready... Go! */
stereo = (MS_ADPCM_state.wavefmt.channels == 2);
state[0] = &MS_ADPCM_state.state[0];
state[1] = &MS_ADPCM_state.state[stereo];
while (encoded_len >= MS_ADPCM_state.wavefmt.blockalign) {
/* Grab the initial information for this block */
state[0]->hPredictor = *encoded++;
if (stereo) {
state[1]->hPredictor = *encoded++;
}
state[0]->iDelta = ((encoded[1] << 8) | encoded[0]);
encoded += sizeof(Sint16);
if (stereo) {
state[1]->iDelta = ((encoded[1] << 8) | encoded[0]);
encoded += sizeof(Sint16);
}
state[0]->iSamp1 = ((encoded[1] << 8) | encoded[0]);
encoded += sizeof(Sint16);
if (stereo) {
state[1]->iSamp1 = ((encoded[1] << 8) | encoded[0]);
encoded += sizeof(Sint16);
}
state[0]->iSamp2 = ((encoded[1] << 8) | encoded[0]);
encoded += sizeof(Sint16);
if (stereo) {
state[1]->iSamp2 = ((encoded[1] << 8) | encoded[0]);
encoded += sizeof(Sint16);
}
coeff[0] = MS_ADPCM_state.aCoeff[state[0]->hPredictor];
coeff[1] = MS_ADPCM_state.aCoeff[state[1]->hPredictor];
/* Store the two initial samples we start with */
decoded[0] = state[0]->iSamp2 & 0xFF;
decoded[1] = state[0]->iSamp2 >> 8;
decoded += 2;
if (stereo) {
decoded[0] = state[1]->iSamp2 & 0xFF;
decoded[1] = state[1]->iSamp2 >> 8;
decoded += 2;
}
decoded[0] = state[0]->iSamp1 & 0xFF;
decoded[1] = state[0]->iSamp1 >> 8;
decoded += 2;
if (stereo) {
decoded[0] = state[1]->iSamp1 & 0xFF;
decoded[1] = state[1]->iSamp1 >> 8;
decoded += 2;
}
/* Decode and store the other samples in this block */
samplesleft = (MS_ADPCM_state.wSamplesPerBlock - 2) *
MS_ADPCM_state.wavefmt.channels;
while (samplesleft > 0) {
nybble = (*encoded) >> 4;
new_sample = MS_ADPCM_nibble(state[0], nybble, coeff[0]);
decoded[0] = new_sample & 0xFF;
new_sample >>= 8;
decoded[1] = new_sample & 0xFF;
decoded += 2;
nybble = (*encoded) & 0x0F;
new_sample = MS_ADPCM_nibble(state[1], nybble, coeff[1]);
decoded[0] = new_sample & 0xFF;
new_sample >>= 8;
decoded[1] = new_sample & 0xFF;
decoded += 2;
++encoded;
samplesleft -= 2;
}
encoded_len -= MS_ADPCM_state.wavefmt.blockalign;
}
SDL_free(freeable);
return (0);
}
struct IMA_ADPCM_decodestate
{
Sint32 sample;
Sint8 index;
};
static struct IMA_ADPCM_decoder
{
WaveFMT wavefmt;
Uint16 wSamplesPerBlock;
/* * * */
struct IMA_ADPCM_decodestate state[2];
} IMA_ADPCM_state;
static int
InitIMA_ADPCM(WaveFMT * format)
{
Uint8 *rogue_feel;
Uint16 extra_info;
/* Set the rogue pointer to the IMA_ADPCM specific data */
IMA_ADPCM_state.wavefmt.encoding = SDL_SwapLE16(format->encoding);
IMA_ADPCM_state.wavefmt.channels = SDL_SwapLE16(format->channels);
IMA_ADPCM_state.wavefmt.frequency = SDL_SwapLE32(format->frequency);
IMA_ADPCM_state.wavefmt.byterate = SDL_SwapLE32(format->byterate);
IMA_ADPCM_state.wavefmt.blockalign = SDL_SwapLE16(format->blockalign);
IMA_ADPCM_state.wavefmt.bitspersample =
SDL_SwapLE16(format->bitspersample);
rogue_feel = (Uint8 *) format + sizeof(*format);
if (sizeof(*format) == 16) {
extra_info = ((rogue_feel[1] << 8) | rogue_feel[0]);
rogue_feel += sizeof(Uint16);
}
IMA_ADPCM_state.wSamplesPerBlock = ((rogue_feel[1] << 8) | rogue_feel[0]);
return (0);
}
static Sint32
IMA_ADPCM_nibble(struct IMA_ADPCM_decodestate *state, Uint8 nybble)
{
const Sint32 max_audioval = ((1 << (16 - 1)) - 1);
const Sint32 min_audioval = -(1 << (16 - 1));
const int index_table[16] = {
-1, -1, -1, -1,
2, 4, 6, 8,
-1, -1, -1, -1,
2, 4, 6, 8
};
const Sint32 step_table[89] = {
7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 19, 21, 23, 25, 28, 31,
34, 37, 41, 45, 50, 55, 60, 66, 73, 80, 88, 97, 107, 118, 130,
143, 157, 173, 190, 209, 230, 253, 279, 307, 337, 371, 408,
449, 494, 544, 598, 658, 724, 796, 876, 963, 1060, 1166, 1282,
1411, 1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024, 3327,
3660, 4026, 4428, 4871, 5358, 5894, 6484, 7132, 7845, 8630,
9493, 10442, 11487, 12635, 13899, 15289, 16818, 18500, 20350,
22385, 24623, 27086, 29794, 32767
};
Sint32 delta, step;
/* Compute difference and new sample value */
step = step_table[state->index];
delta = step >> 3;
if (nybble & 0x04)
delta += step;
if (nybble & 0x02)
delta += (step >> 1);
if (nybble & 0x01)
delta += (step >> 2);
if (nybble & 0x08)
delta = -delta;
state->sample += delta;
/* Update index value */
state->index += index_table[nybble];
if (state->index > 88) {
state->index = 88;
} else if (state->index < 0) {
state->index = 0;
}
/* Clamp output sample */
if (state->sample > max_audioval) {
state->sample = max_audioval;
} else if (state->sample < min_audioval) {
state->sample = min_audioval;
}
return (state->sample);
}
/* Fill the decode buffer with a channel block of data (8 samples) */
static void
Fill_IMA_ADPCM_block(Uint8 * decoded, Uint8 * encoded,
int channel, int numchannels,
struct IMA_ADPCM_decodestate *state)
{
int i;
Sint8 nybble;
Sint32 new_sample;
decoded += (channel * 2);
for (i = 0; i < 4; ++i) {
nybble = (*encoded) & 0x0F;
new_sample = IMA_ADPCM_nibble(state, nybble);
decoded[0] = new_sample & 0xFF;
new_sample >>= 8;
decoded[1] = new_sample & 0xFF;
decoded += 2 * numchannels;
nybble = (*encoded) >> 4;
new_sample = IMA_ADPCM_nibble(state, nybble);
decoded[0] = new_sample & 0xFF;
new_sample >>= 8;
decoded[1] = new_sample & 0xFF;
decoded += 2 * numchannels;
++encoded;
}
}
static int
IMA_ADPCM_decode(Uint8 ** audio_buf, Uint32 * audio_len)
{
struct IMA_ADPCM_decodestate *state;
Uint8 *freeable, *encoded, *decoded;
Sint32 encoded_len, samplesleft;
unsigned int c, channels;
/* Check to make sure we have enough variables in the state array */
channels = IMA_ADPCM_state.wavefmt.channels;
if (channels > SDL_arraysize(IMA_ADPCM_state.state)) {
SDL_SetError("IMA ADPCM decoder can only handle %d channels",
SDL_arraysize(IMA_ADPCM_state.state));
return (-1);
}
state = IMA_ADPCM_state.state;
/* Allocate the proper sized output buffer */
encoded_len = *audio_len;
encoded = *audio_buf;
freeable = *audio_buf;
*audio_len = (encoded_len / IMA_ADPCM_state.wavefmt.blockalign) *
IMA_ADPCM_state.wSamplesPerBlock *
IMA_ADPCM_state.wavefmt.channels * sizeof(Sint16);
*audio_buf = (Uint8 *) SDL_malloc(*audio_len);
if (*audio_buf == NULL) {
SDL_Error(SDL_ENOMEM);
return (-1);
}
decoded = *audio_buf;
/* Get ready... Go! */
while (encoded_len >= IMA_ADPCM_state.wavefmt.blockalign) {
/* Grab the initial information for this block */
for (c = 0; c < channels; ++c) {
/* Fill the state information for this block */
state[c].sample = ((encoded[1] << 8) | encoded[0]);
encoded += 2;
if (state[c].sample & 0x8000) {
state[c].sample -= 0x10000;
}
state[c].index = *encoded++;
/* Reserved byte in buffer header, should be 0 */
if (*encoded++ != 0) {
/* Uh oh, corrupt data? Buggy code? */ ;
}
/* Store the initial sample we start with */
decoded[0] = (Uint8) (state[c].sample & 0xFF);
decoded[1] = (Uint8) (state[c].sample >> 8);
decoded += 2;
}
/* Decode and store the other samples in this block */
samplesleft = (IMA_ADPCM_state.wSamplesPerBlock - 1) * channels;
while (samplesleft > 0) {
for (c = 0; c < channels; ++c) {
Fill_IMA_ADPCM_block(decoded, encoded,
c, channels, &state[c]);
encoded += 4;
samplesleft -= 8;
}
decoded += (channels * 8 * 2);
}
encoded_len -= IMA_ADPCM_state.wavefmt.blockalign;
}
SDL_free(freeable);
return (0);
}
SDL_AudioSpec *
SDL_LoadWAV_RW(SDL_RWops * src, int freesrc,
SDL_AudioSpec * spec, Uint8 ** audio_buf, Uint32 * audio_len)
{
int was_error;
Chunk chunk;
int lenread;
int IEEE_float_encoded, MS_ADPCM_encoded, IMA_ADPCM_encoded;
int samplesize;
/* WAV magic header */
Uint32 RIFFchunk;
Uint32 wavelen = 0;
Uint32 WAVEmagic;
Uint32 headerDiff = 0;
/* FMT chunk */
WaveFMT *format = NULL;
/* Make sure we are passed a valid data source */
was_error = 0;
if (src == NULL) {
was_error = 1;
goto done;
}
/* Check the magic header */
RIFFchunk = SDL_ReadLE32(src);
wavelen = SDL_ReadLE32(src);
if (wavelen == WAVE) { /* The RIFFchunk has already been read */
WAVEmagic = wavelen;
wavelen = RIFFchunk;
RIFFchunk = RIFF;
} else {
WAVEmagic = SDL_ReadLE32(src);
}
if ((RIFFchunk != RIFF) || (WAVEmagic != WAVE)) {
SDL_SetError("Unrecognized file type (not WAVE)");
was_error = 1;
goto done;
}
headerDiff += sizeof(Uint32); /* for WAVE */
/* Read the audio data format chunk */
chunk.data = NULL;
do {
if (chunk.data != NULL) {
SDL_free(chunk.data);
}
lenread = ReadChunk(src, &chunk);
if (lenread < 0) {
was_error = 1;
goto done;
}
/* 2 Uint32's for chunk header+len, plus the lenread */
headerDiff += lenread + 2 * sizeof(Uint32);
} while ((chunk.magic == FACT) || (chunk.magic == LIST));
/* Decode the audio data format */
format = (WaveFMT *) chunk.data;
if (chunk.magic != FMT) {
SDL_SetError("Complex WAVE files not supported");
was_error = 1;
goto done;
}
IEEE_float_encoded = MS_ADPCM_encoded = IMA_ADPCM_encoded = 0;
switch (SDL_SwapLE16(format->encoding)) {
case PCM_CODE:
/* We can understand this */
break;
case IEEE_FLOAT_CODE:
IEEE_float_encoded = 1;
/* We can understand this */
break;
case MS_ADPCM_CODE:
/* Try to understand this */
if (InitMS_ADPCM(format) < 0) {
was_error = 1;
goto done;
}
MS_ADPCM_encoded = 1;
break;
case IMA_ADPCM_CODE:
/* Try to understand this */
if (InitIMA_ADPCM(format) < 0) {
was_error = 1;
goto done;
}
IMA_ADPCM_encoded = 1;
break;
case MP3_CODE:
SDL_SetError("MPEG Layer 3 data not supported",
SDL_SwapLE16(format->encoding));
was_error = 1;
goto done;
default:
SDL_SetError("Unknown WAVE data format: 0x%.4x",
SDL_SwapLE16(format->encoding));
was_error = 1;
goto done;
}
SDL_memset(spec, 0, (sizeof *spec));
spec->freq = SDL_SwapLE32(format->frequency);
if (IEEE_float_encoded) {
if ((SDL_SwapLE16(format->bitspersample)) != 32) {
was_error = 1;
} else {
spec->format = AUDIO_F32;
}
} else {
switch (SDL_SwapLE16(format->bitspersample)) {
case 4:
if (MS_ADPCM_encoded || IMA_ADPCM_encoded) {
spec->format = AUDIO_S16;
} else {
was_error = 1;
}
break;
case 8:
spec->format = AUDIO_U8;
break;
case 16:
spec->format = AUDIO_S16;
break;
case 32:
spec->format = AUDIO_S32;
break;
default:
was_error = 1;
break;
}
}
if (was_error) {
SDL_SetError("Unknown %d-bit PCM data format",
SDL_SwapLE16(format->bitspersample));
goto done;
}
spec->channels = (Uint8) SDL_SwapLE16(format->channels);
spec->samples = 4096; /* Good default buffer size */
/* Read the audio data chunk */
*audio_buf = NULL;
do {
if (*audio_buf != NULL) {
SDL_free(*audio_buf);
}
lenread = ReadChunk(src, &chunk);
if (lenread < 0) {
was_error = 1;
goto done;
}
*audio_len = lenread;
*audio_buf = chunk.data;
if (chunk.magic != DATA)
headerDiff += lenread + 2 * sizeof(Uint32);
} while (chunk.magic != DATA);
headerDiff += 2 * sizeof(Uint32); /* for the data chunk and len */
if (MS_ADPCM_encoded) {
if (MS_ADPCM_decode(audio_buf, audio_len) < 0) {
was_error = 1;
goto done;
}
}
if (IMA_ADPCM_encoded) {
if (IMA_ADPCM_decode(audio_buf, audio_len) < 0) {
was_error = 1;
goto done;
}
}
/* Don't return a buffer that isn't a multiple of samplesize */
samplesize = ((SDL_AUDIO_BITSIZE(spec->format)) / 8) * spec->channels;
*audio_len &= ~(samplesize - 1);
done:
if (format != NULL) {
SDL_free(format);
}
if (src) {
if (freesrc) {
SDL_RWclose(src);
} else {
/* seek to the end of the file (given by the RIFF chunk) */
SDL_RWseek(src, wavelen - chunk.length - headerDiff, RW_SEEK_CUR);
}
}
if (was_error) {
spec = NULL;
}
return (spec);
}
/* Since the WAV memory is allocated in the shared library, it must also
be freed here. (Necessary under Win32, VC++)
*/
void
SDL_FreeWAV(Uint8 * audio_buf)
{
if (audio_buf != NULL) {
SDL_free(audio_buf);
}
}
static int
ReadChunk(SDL_RWops * src, Chunk * chunk)
{
chunk->magic = SDL_ReadLE32(src);
chunk->length = SDL_ReadLE32(src);
chunk->data = (Uint8 *) SDL_malloc(chunk->length);
if (chunk->data == NULL) {
SDL_Error(SDL_ENOMEM);
return (-1);
}
if (SDL_RWread(src, chunk->data, chunk->length, 1) != 1) {
SDL_Error(SDL_EFREAD);
SDL_free(chunk->data);
return (-1);
}
return (chunk->length);
}
/* vi: set ts=4 sw=4 expandtab: */

65
Externals/SDL/src/audio/SDL_wave.h vendored Normal file
View File

@ -0,0 +1,65 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is SDL_free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* WAVE files are little-endian */
/*******************************************/
/* Define values for Microsoft WAVE format */
/*******************************************/
#define RIFF 0x46464952 /* "RIFF" */
#define WAVE 0x45564157 /* "WAVE" */
#define FACT 0x74636166 /* "fact" */
#define LIST 0x5453494c /* "LIST" */
#define FMT 0x20746D66 /* "fmt " */
#define DATA 0x61746164 /* "data" */
#define PCM_CODE 0x0001
#define MS_ADPCM_CODE 0x0002
#define IEEE_FLOAT_CODE 0x0003
#define IMA_ADPCM_CODE 0x0011
#define MP3_CODE 0x0055
#define WAVE_MONO 1
#define WAVE_STEREO 2
/* Normally, these three chunks come consecutively in a WAVE file */
typedef struct WaveFMT
{
/* Not saved in the chunk we read:
Uint32 FMTchunk;
Uint32 fmtlen;
*/
Uint16 encoding;
Uint16 channels; /* 1 = mono, 2 = stereo */
Uint32 frequency; /* One of 11025, 22050, or 44100 Hz */
Uint32 byterate; /* Average bytes per second */
Uint16 blockalign; /* Bytes per sample block */
Uint16 bitspersample; /* One of 8, 12, 16, or 4 for ADPCM */
} WaveFMT;
/* The general chunk found in the WAVE file */
typedef struct Chunk
{
Uint32 magic;
Uint32 length;
Uint8 *data;
} Chunk;
/* vi: set ts=4 sw=4 expandtab: */

621
Externals/SDL/src/audio/alsa/SDL_alsa_audio.c vendored Normal file
View File

@ -0,0 +1,621 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#include <sys/types.h>
#include <signal.h> /* For kill() */
#include <errno.h>
#include <string.h>
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "SDL_alsa_audio.h"
#ifdef SDL_AUDIO_DRIVER_ALSA_DYNAMIC
#include "SDL_loadso.h"
#endif
/* The tag name used by ALSA audio */
#define DRIVER_NAME "alsa"
/* The default ALSA audio driver */
#define DEFAULT_DEVICE "default"
static int (*ALSA_snd_pcm_open)
(snd_pcm_t **, const char *, snd_pcm_stream_t, int);
static int (*ALSA_snd_pcm_close) (snd_pcm_t * pcm);
static snd_pcm_sframes_t(*ALSA_snd_pcm_writei)
(snd_pcm_t *, const void *, snd_pcm_uframes_t);
static int (*ALSA_snd_pcm_resume) (snd_pcm_t *);
static int (*ALSA_snd_pcm_prepare) (snd_pcm_t *);
static int (*ALSA_snd_pcm_drain) (snd_pcm_t *);
static const char *(*ALSA_snd_strerror) (int);
static size_t(*ALSA_snd_pcm_hw_params_sizeof) (void);
static size_t(*ALSA_snd_pcm_sw_params_sizeof) (void);
static int (*ALSA_snd_pcm_hw_params_any) (snd_pcm_t *, snd_pcm_hw_params_t *);
static int (*ALSA_snd_pcm_hw_params_set_access)
(snd_pcm_t *, snd_pcm_hw_params_t *, snd_pcm_access_t);
static int (*ALSA_snd_pcm_hw_params_set_format)
(snd_pcm_t *, snd_pcm_hw_params_t *, snd_pcm_format_t);
static int (*ALSA_snd_pcm_hw_params_set_channels)
(snd_pcm_t *, snd_pcm_hw_params_t *, unsigned int);
static int (*ALSA_snd_pcm_hw_params_set_rate_near)
(snd_pcm_t *, snd_pcm_hw_params_t *, unsigned int *, int *);
static int (*ALSA_snd_pcm_hw_params_set_period_size_near)
(snd_pcm_t *, snd_pcm_hw_params_t *, snd_pcm_uframes_t *, int *);
static int (*ALSA_snd_pcm_hw_params_get_channels)
(const snd_pcm_hw_params_t *, unsigned int *);
static snd_pcm_sframes_t(*ALSA_snd_pcm_hw_params_get_period_size)
(const snd_pcm_hw_params_t *);
static int (*ALSA_snd_pcm_hw_params_set_periods_near)
(snd_pcm_t *, snd_pcm_hw_params_t *, unsigned int *, int *);
static int (*ALSA_snd_pcm_hw_params_get_periods) (snd_pcm_hw_params_t *);
static int (*ALSA_snd_pcm_hw_params) (snd_pcm_t *, snd_pcm_hw_params_t *);
static int (*ALSA_snd_pcm_sw_params_current) (snd_pcm_t *,
snd_pcm_sw_params_t *);
static int (*ALSA_snd_pcm_sw_params_set_start_threshold)
(snd_pcm_t *, snd_pcm_sw_params_t *, snd_pcm_uframes_t);
static int (*ALSA_snd_pcm_sw_params_set_avail_min)
(snd_pcm_t *, snd_pcm_sw_params_t *, snd_pcm_uframes_t);
static int (*ALSA_snd_pcm_sw_params) (snd_pcm_t *, snd_pcm_sw_params_t *);
static int (*ALSA_snd_pcm_nonblock) (snd_pcm_t *, int);
#define snd_pcm_hw_params_sizeof ALSA_snd_pcm_hw_params_sizeof
#define snd_pcm_sw_params_sizeof ALSA_snd_pcm_sw_params_sizeof
#ifdef SDL_AUDIO_DRIVER_ALSA_DYNAMIC
static const char *alsa_library = SDL_AUDIO_DRIVER_ALSA_DYNAMIC;
static void *alsa_handle = NULL;
static int
load_alsa_sym(const char *fn, void **addr)
{
*addr = SDL_LoadFunction(alsa_handle, fn);
if (*addr == NULL) {
/* Don't call SDL_SetError(): SDL_LoadFunction already did. */
return 0;
}
return 1;
}
/* cast funcs to char* first, to please GCC's strict aliasing rules. */
#define SDL_ALSA_SYM(x) \
if (!load_alsa_sym(#x, (void **) (char *) &ALSA_##x)) return -1
#else
#define SDL_ALSA_SYM(x) ALSA_##x = x
#endif
static int
load_alsa_syms(void)
{
SDL_ALSA_SYM(snd_pcm_open);
SDL_ALSA_SYM(snd_pcm_close);
SDL_ALSA_SYM(snd_pcm_writei);
SDL_ALSA_SYM(snd_pcm_resume);
SDL_ALSA_SYM(snd_pcm_prepare);
SDL_ALSA_SYM(snd_pcm_drain);
SDL_ALSA_SYM(snd_strerror);
SDL_ALSA_SYM(snd_pcm_hw_params_sizeof);
SDL_ALSA_SYM(snd_pcm_sw_params_sizeof);
SDL_ALSA_SYM(snd_pcm_hw_params_any);
SDL_ALSA_SYM(snd_pcm_hw_params_set_access);
SDL_ALSA_SYM(snd_pcm_hw_params_set_format);
SDL_ALSA_SYM(snd_pcm_hw_params_set_channels);
SDL_ALSA_SYM(snd_pcm_hw_params_get_channels);
SDL_ALSA_SYM(snd_pcm_hw_params_set_rate_near);
SDL_ALSA_SYM(snd_pcm_hw_params_set_period_size_near);
SDL_ALSA_SYM(snd_pcm_hw_params_get_period_size);
SDL_ALSA_SYM(snd_pcm_hw_params_set_periods_near);
SDL_ALSA_SYM(snd_pcm_hw_params_get_periods);
SDL_ALSA_SYM(snd_pcm_hw_params);
SDL_ALSA_SYM(snd_pcm_sw_params_current);
SDL_ALSA_SYM(snd_pcm_sw_params_set_start_threshold);
SDL_ALSA_SYM(snd_pcm_sw_params_set_avail_min);
SDL_ALSA_SYM(snd_pcm_sw_params);
SDL_ALSA_SYM(snd_pcm_nonblock);
return 0;
}
#undef SDL_ALSA_SYM
#ifdef SDL_AUDIO_DRIVER_ALSA_DYNAMIC
static void
UnloadALSALibrary(void)
{
if (alsa_handle != NULL) {
SDL_UnloadObject(alsa_handle);
alsa_handle = NULL;
}
}
static int
LoadALSALibrary(void)
{
int retval = 0;
if (alsa_handle == NULL) {
alsa_handle = SDL_LoadObject(alsa_library);
if (alsa_handle == NULL) {
retval = -1;
/* Don't call SDL_SetError(): SDL_LoadObject already did. */
} else {
retval = load_alsa_syms();
if (retval < 0) {
UnloadALSALibrary();
}
}
}
return retval;
}
#else
static void
UnloadALSALibrary(void)
{
}
static int
LoadALSALibrary(void)
{
load_alsa_syms();
return 0;
}
#endif /* SDL_AUDIO_DRIVER_ALSA_DYNAMIC */
static const char *
get_audio_device(int channels)
{
const char *device;
device = SDL_getenv("AUDIODEV"); /* Is there a standard variable name? */
if (device == NULL) {
if (channels == 6)
device = "surround51";
else if (channels == 4)
device = "surround40";
else
device = DEFAULT_DEVICE;
}
return device;
}
/* This function waits until it is possible to write a full sound buffer */
static void
ALSA_WaitDevice(_THIS)
{
/* Check to see if the thread-parent process is still alive */
{
static int cnt = 0;
/* Note that this only works with thread implementations
that use a different process id for each thread.
*/
/* Check every 10 loops */
if (this->hidden->parent && (((++cnt) % 10) == 0)) {
if (kill(this->hidden->parent, 0) < 0 && errno == ESRCH) {
this->enabled = 0;
}
}
}
}
/* !!! FIXME: is there a channel swizzler in alsalib instead? */
/*
* http://bugzilla.libsdl.org/show_bug.cgi?id=110
* "For Linux ALSA, this is FL-FR-RL-RR-C-LFE
* and for Windows DirectX [and CoreAudio], this is FL-FR-C-LFE-RL-RR"
*/
#define SWIZ6(T) \
T *ptr = (T *) this->hidden->mixbuf; \
const Uint32 count = (this->spec.samples / 6); \
Uint32 i; \
for (i = 0; i < count; i++, ptr += 6) { \
T tmp; \
tmp = ptr[2]; ptr[2] = ptr[4]; ptr[4] = tmp; \
tmp = ptr[3]; ptr[3] = ptr[5]; ptr[5] = tmp; \
}
static __inline__ void
swizzle_alsa_channels_6_64bit(_THIS)
{
SWIZ6(Uint64);
}
static __inline__ void
swizzle_alsa_channels_6_32bit(_THIS)
{
SWIZ6(Uint32);
}
static __inline__ void
swizzle_alsa_channels_6_16bit(_THIS)
{
SWIZ6(Uint16);
}
static __inline__ void
swizzle_alsa_channels_6_8bit(_THIS)
{
SWIZ6(Uint8);
}
#undef SWIZ6
/*
* Called right before feeding this->hidden->mixbuf to the hardware. Swizzle
* channels from Windows/Mac order to the format alsalib will want.
*/
static __inline__ void
swizzle_alsa_channels(_THIS)
{
if (this->spec.channels == 6) {
const Uint16 fmtsize = (this->spec.format & 0xFF); /* bits/channel. */
if (fmtsize == 16)
swizzle_alsa_channels_6_16bit(this);
else if (fmtsize == 8)
swizzle_alsa_channels_6_8bit(this);
else if (fmtsize == 32)
swizzle_alsa_channels_6_32bit(this);
else if (fmtsize == 64)
swizzle_alsa_channels_6_64bit(this);
}
/* !!! FIXME: update this for 7.1 if needed, later. */
}
static void
ALSA_PlayDevice(_THIS)
{
int status;
int sample_len;
signed short *sample_buf;
swizzle_alsa_channels(this);
sample_len = this->spec.samples;
sample_buf = (signed short *) this->hidden->mixbuf;
while (sample_len > 0) {
status = ALSA_snd_pcm_writei(this->hidden->pcm_handle,
sample_buf, sample_len);
if (status < 0) {
if (status == -EAGAIN) {
SDL_Delay(1);
continue;
}
if (status == -ESTRPIPE) {
do {
SDL_Delay(1);
status = ALSA_snd_pcm_resume(this->hidden->pcm_handle);
} while (status == -EAGAIN);
}
if (status < 0) {
status = ALSA_snd_pcm_prepare(this->hidden->pcm_handle);
}
if (status < 0) {
/* Hmm, not much we can do - abort */
this->enabled = 0;
return;
}
continue;
}
sample_buf += status * this->spec.channels;
sample_len -= status;
}
}
static Uint8 *
ALSA_GetDeviceBuf(_THIS)
{
return (this->hidden->mixbuf);
}
static void
ALSA_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->mixbuf != NULL) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if (this->hidden->pcm_handle) {
ALSA_snd_pcm_drain(this->hidden->pcm_handle);
ALSA_snd_pcm_close(this->hidden->pcm_handle);
this->hidden->pcm_handle = NULL;
}
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static int
ALSA_OpenDevice(_THIS, const char *devname, int iscapture)
{
int status = 0;
snd_pcm_t *pcm_handle = NULL;
snd_pcm_hw_params_t *hwparams = NULL;
snd_pcm_sw_params_t *swparams = NULL;
snd_pcm_format_t format = 0;
snd_pcm_uframes_t frames = 0;
SDL_AudioFormat test_format = 0;
unsigned int rate = 0;
unsigned int periods = 0;
unsigned int channels = 0;
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Open the audio device */
/* Name of device should depend on # channels in spec */
status = ALSA_snd_pcm_open(&pcm_handle,
get_audio_device(this->spec.channels),
SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't open audio device: %s",
ALSA_snd_strerror(status));
return 0;
}
this->hidden->pcm_handle = pcm_handle;
/* Figure out what the hardware is capable of */
snd_pcm_hw_params_alloca(&hwparams);
status = ALSA_snd_pcm_hw_params_any(pcm_handle, hwparams);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't get hardware config: %s",
ALSA_snd_strerror(status));
return 0;
}
/* SDL only uses interleaved sample output */
status = ALSA_snd_pcm_hw_params_set_access(pcm_handle, hwparams,
SND_PCM_ACCESS_RW_INTERLEAVED);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't set interleaved access: %s",
ALSA_snd_strerror(status));
return 0;
}
/* Try for a closest match on audio format */
status = -1;
for (test_format = SDL_FirstAudioFormat(this->spec.format);
test_format && (status < 0);) {
status = 0; /* if we can't support a format, it'll become -1. */
switch (test_format) {
case AUDIO_U8:
format = SND_PCM_FORMAT_U8;
break;
case AUDIO_S8:
format = SND_PCM_FORMAT_S8;
break;
case AUDIO_S16LSB:
format = SND_PCM_FORMAT_S16_LE;
break;
case AUDIO_S16MSB:
format = SND_PCM_FORMAT_S16_BE;
break;
case AUDIO_U16LSB:
format = SND_PCM_FORMAT_U16_LE;
break;
case AUDIO_U16MSB:
format = SND_PCM_FORMAT_U16_BE;
break;
case AUDIO_S32LSB:
format = SND_PCM_FORMAT_S32_LE;
break;
case AUDIO_S32MSB:
format = SND_PCM_FORMAT_S32_BE;
break;
case AUDIO_F32LSB:
format = SND_PCM_FORMAT_FLOAT_LE;
break;
case AUDIO_F32MSB:
format = SND_PCM_FORMAT_FLOAT_BE;
break;
default:
status = -1;
break;
}
if (status >= 0) {
status = ALSA_snd_pcm_hw_params_set_format(pcm_handle,
hwparams, format);
}
if (status < 0) {
test_format = SDL_NextAudioFormat();
}
}
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't find any hardware audio formats");
return 0;
}
this->spec.format = test_format;
/* Set the number of channels */
status = ALSA_snd_pcm_hw_params_set_channels(pcm_handle, hwparams,
this->spec.channels);
channels = this->spec.channels;
if (status < 0) {
status = ALSA_snd_pcm_hw_params_get_channels(hwparams, &channels);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't set audio channels");
return 0;
}
this->spec.channels = channels;
}
/* Set the audio rate */
rate = this->spec.freq;
status = ALSA_snd_pcm_hw_params_set_rate_near(pcm_handle, hwparams,
&rate, NULL);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't set audio frequency: %s",
ALSA_snd_strerror(status));
return 0;
}
this->spec.freq = rate;
/* Set the buffer size, in samples */
frames = this->spec.samples;
status = ALSA_snd_pcm_hw_params_set_period_size_near(pcm_handle, hwparams,
&frames, NULL);
if ( status < 0 ) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't set audio frequency: %s",
ALSA_snd_strerror(status));
return(-1);
}
this->spec.samples = frames;
periods = 2;
ALSA_snd_pcm_hw_params_set_periods_near(pcm_handle, hwparams,
&periods, NULL);
/* "set" the hardware with the desired parameters */
status = ALSA_snd_pcm_hw_params(pcm_handle, hwparams);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't set hardware audio parameters: %s",
ALSA_snd_strerror(status));
return 0;
}
#if AUDIO_DEBUG
{
snd_pcm_sframes_t bufsize;
int fragments;
bufsize = ALSA_snd_pcm_hw_params_get_period_size(hwparams);
fragments = ALSA_snd_pcm_hw_params_get_periods(hwparams);
fprintf(stderr, "ALSA: bufsize = %ld, fragments = %d\n", bufsize,
fragments);
}
#endif
/* Set the software parameters */
snd_pcm_sw_params_alloca(&swparams);
status = ALSA_snd_pcm_sw_params_current(pcm_handle, swparams);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't get software config: %s",
ALSA_snd_strerror(status));
return 0;
}
status =
ALSA_snd_pcm_sw_params_set_start_threshold(pcm_handle, swparams, 0);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("ALSA: Couldn't set start threshold: %s",
ALSA_snd_strerror(status));
return 0;
}
status =
ALSA_snd_pcm_sw_params_set_avail_min(pcm_handle, swparams, frames);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("Couldn't set avail min: %s", ALSA_snd_strerror(status));
return 0;
}
status = ALSA_snd_pcm_sw_params(pcm_handle, swparams);
if (status < 0) {
ALSA_CloseDevice(this);
SDL_SetError("Couldn't set software audio parameters: %s",
ALSA_snd_strerror(status));
return 0;
}
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
/* Allocate mixing buffer */
this->hidden->mixlen = this->spec.size;
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if (this->hidden->mixbuf == NULL) {
ALSA_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
/* Get the parent process id (we're the parent of the audio thread) */
this->hidden->parent = getpid();
/* Switch to blocking mode for playback */
ALSA_snd_pcm_nonblock(pcm_handle, 0);
/* We're ready to rock and roll. :-) */
return 1;
}
static void
ALSA_Deinitialize(void)
{
UnloadALSALibrary();
}
static int
ALSA_Init(SDL_AudioDriverImpl * impl)
{
if (LoadALSALibrary() < 0) {
return 0;
}
/* Set the function pointers */
impl->OpenDevice = ALSA_OpenDevice;
impl->WaitDevice = ALSA_WaitDevice;
impl->GetDeviceBuf = ALSA_GetDeviceBuf;
impl->PlayDevice = ALSA_PlayDevice;
impl->CloseDevice = ALSA_CloseDevice;
impl->Deinitialize = ALSA_Deinitialize;
impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: Add device enum! */
return 1; /* !!! FIXME: return 2 once device enum is implemented. */
}
AudioBootStrap ALSA_bootstrap = {
DRIVER_NAME, "ALSA 0.9 PCM audio", ALSA_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _ALSA_PCM_audio_h
#define _ALSA_PCM_audio_h
#include <alsa/asoundlib.h>
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* The audio device handle */
snd_pcm_t *pcm_handle;
/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
};
#endif /* _ALSA_PCM_audio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#include <unistd.h>
#include <errno.h>
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "SDL_artsaudio.h"
#ifdef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
#include "SDL_name.h"
#include "SDL_loadso.h"
#else
#define SDL_NAME(X) X
#endif
/* The tag name used by artsc audio */
#define ARTS_DRIVER_NAME "arts"
#ifdef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
static const char *arts_library = SDL_AUDIO_DRIVER_ARTS_DYNAMIC;
static void *arts_handle = NULL;
/* !!! FIXME: I hate this SDL_NAME clutter...it makes everything so messy! */
static int (*SDL_NAME(arts_init)) (void);
static void (*SDL_NAME(arts_free)) (void);
static arts_stream_t(*SDL_NAME(arts_play_stream)) (int rate, int bits,
int channels,
const char *name);
static int (*SDL_NAME(arts_stream_set)) (arts_stream_t s,
arts_parameter_t param, int value);
static int (*SDL_NAME(arts_stream_get)) (arts_stream_t s,
arts_parameter_t param);
static int (*SDL_NAME(arts_write)) (arts_stream_t s, const void *buffer,
int count);
static void (*SDL_NAME(arts_close_stream)) (arts_stream_t s);
static int (*SDL_NAME(arts_suspended)) (void);
static const char *(*SDL_NAME(arts_error_text)) (int errorcode);
#define SDL_ARTS_SYM(x) { #x, (void **) (char *) &SDL_NAME(x) }
static struct
{
const char *name;
void **func;
} arts_functions[] = {
/* *INDENT-OFF* */
SDL_ARTS_SYM(arts_init),
SDL_ARTS_SYM(arts_free),
SDL_ARTS_SYM(arts_play_stream),
SDL_ARTS_SYM(arts_stream_set),
SDL_ARTS_SYM(arts_stream_get),
SDL_ARTS_SYM(arts_write),
SDL_ARTS_SYM(arts_close_stream),
SDL_ARTS_SYM(arts_suspended),
SDL_ARTS_SYM(arts_error_text),
/* *INDENT-ON* */
};
#undef SDL_ARTS_SYM
static void
UnloadARTSLibrary()
{
if (arts_handle != NULL) {
SDL_UnloadObject(arts_handle);
arts_handle = NULL;
}
}
static int
LoadARTSLibrary(void)
{
int i, retval = -1;
if (arts_handle == NULL) {
arts_handle = SDL_LoadObject(arts_library);
if (arts_handle != NULL) {
retval = 0;
for (i = 0; i < SDL_arraysize(arts_functions); ++i) {
*arts_functions[i].func =
SDL_LoadFunction(arts_handle, arts_functions[i].name);
if (!*arts_functions[i].func) {
retval = -1;
UnloadARTSLibrary();
break;
}
}
}
}
return retval;
}
#else
static void
UnloadARTSLibrary()
{
return;
}
static int
LoadARTSLibrary(void)
{
return 0;
}
#endif /* SDL_AUDIO_DRIVER_ARTS_DYNAMIC */
/* This function waits until it is possible to write a full sound buffer */
static void
ARTS_WaitDevice(_THIS)
{
Sint32 ticks;
/* Check to see if the thread-parent process is still alive */
{
static int cnt = 0;
/* Note that this only works with thread implementations
that use a different process id for each thread.
*/
/* Check every 10 loops */
if (this->hidden->parent && (((++cnt) % 10) == 0)) {
if (kill(this->hidden->parent, 0) < 0 && errno == ESRCH) {
this->enabled = 0;
}
}
}
/* Use timer for general audio synchronization */
ticks =
((Sint32) (this->hidden->next_frame - SDL_GetTicks())) - FUDGE_TICKS;
if (ticks > 0) {
SDL_Delay(ticks);
}
}
static void
ARTS_PlayDevice(_THIS)
{
/* Write the audio data */
int written = SDL_NAME(arts_write) (this->hidden->stream,
this->hidden->mixbuf,
this->hidden->mixlen);
/* If timer synchronization is enabled, set the next write frame */
if (this->hidden->frame_ticks) {
this->hidden->next_frame += this->hidden->frame_ticks;
}
/* If we couldn't write, assume fatal error for now */
if (written < 0) {
this->enabled = 0;
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", written);
#endif
}
static void
ARTS_WaitDone(_THIS)
{
/* !!! FIXME: camp here until buffer drains... SDL_Delay(???); */
}
static Uint8 *
ARTS_GetDeviceBuf(_THIS)
{
return (this->hidden->mixbuf);
}
static void
ARTS_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->mixbuf != NULL) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if (this->hidden->stream) {
SDL_NAME(arts_close_stream) (this->hidden->stream);
this->hidden->stream = 0;
}
SDL_NAME(arts_free) ();
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static int
ARTS_OpenDevice(_THIS, const char *devname, int iscapture)
{
int rc = 0;
int bits = 0, frag_spec = 0;
SDL_AudioFormat test_format = 0, format = 0;
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Try for a closest match on audio format */
for (test_format = SDL_FirstAudioFormat(this->spec.format);
!format && test_format;) {
#ifdef DEBUG_AUDIO
fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
#endif
switch (test_format) {
case AUDIO_U8:
bits = 8;
format = 1;
break;
case AUDIO_S16LSB:
bits = 16;
format = 1;
break;
default:
format = 0;
break;
}
if (!format) {
test_format = SDL_NextAudioFormat();
}
}
if (format == 0) {
ARTS_CloseDevice(this);
SDL_SetError("Couldn't find any hardware audio formats");
return 0;
}
this->spec.format = test_format;
if ((rc = SDL_NAME(arts_init) ()) != 0) {
ARTS_CloseDevice(this);
SDL_SetError("Unable to initialize ARTS: %s",
SDL_NAME(arts_error_text) (rc));
return 0;
}
if (!SDL_NAME(arts_suspended) ()) {
ARTS_CloseDevice(this);
SDL_SetError("ARTS can not open audio device");
return 0;
}
this->hidden->stream = SDL_NAME(arts_play_stream) (this->spec.freq,
bits,
this->spec.channels,
"SDL");
/* Play nothing so we have at least one write (server bug workaround). */
SDL_NAME(arts_write) (this->hidden->stream, "", 0);
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
/* Determine the power of two of the fragment size */
for (frag_spec = 0; (0x01 << frag_spec) < this->spec.size; ++frag_spec);
if ((0x01 << frag_spec) != this->spec.size) {
ARTS_CloseDevice(this);
SDL_SetError("Fragment size must be a power of two");
return 0;
}
frag_spec |= 0x00020000; /* two fragments, for low latency */
#ifdef ARTS_P_PACKET_SETTINGS
SDL_NAME(arts_stream_set) (this->hidden->stream,
ARTS_P_PACKET_SETTINGS, frag_spec);
#else
SDL_NAME(arts_stream_set) (this->hidden->stream, ARTS_P_PACKET_SIZE,
frag_spec & 0xffff);
SDL_NAME(arts_stream_set) (this->hidden->stream, ARTS_P_PACKET_COUNT,
frag_spec >> 16);
#endif
this->spec.size = SDL_NAME(arts_stream_get) (this->hidden->stream,
ARTS_P_PACKET_SIZE);
/* Allocate mixing buffer */
this->hidden->mixlen = this->spec.size;
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if (this->hidden->mixbuf == NULL) {
ARTS_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
/* Get the parent process id (we're the parent of the audio thread) */
this->hidden->parent = getpid();
/* We're ready to rock and roll. :-) */
return 1;
}
static void
ARTS_Deinitialize(void)
{
UnloadARTSLibrary();
}
static int
ARTS_Init(SDL_AudioDriverImpl * impl)
{
if (LoadARTSLibrary() < 0) {
return 0;
} else {
if (SDL_NAME(arts_init) () != 0) {
UnloadARTSLibrary();
SDL_SetError("ARTS: arts_init failed (no audio server?)");
return 0;
}
/* Play a stream so aRts doesn't crash */
if (SDL_NAME(arts_suspended) ()) {
arts_stream_t stream;
stream = SDL_NAME(arts_play_stream) (44100, 16, 2, "SDL");
SDL_NAME(arts_write) (stream, "", 0);
SDL_NAME(arts_close_stream) (stream);
}
SDL_NAME(arts_free) ();
}
/* Set the function pointers */
impl->OpenDevice = ARTS_OpenDevice;
impl->PlayDevice = ARTS_PlayDevice;
impl->WaitDevice = ARTS_WaitDevice;
impl->GetDeviceBuf = ARTS_GetDeviceBuf;
impl->CloseDevice = ARTS_CloseDevice;
impl->WaitDone = ARTS_WaitDone;
impl->Deinitialize = ARTS_Deinitialize;
impl->OnlyHasDefaultOutputDevice = 1;
return 1;
}
AudioBootStrap ARTS_bootstrap = {
ARTS_DRIVER_NAME, "Analog RealTime Synthesizer", ARTS_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_artscaudio_h
#define _SDL_artscaudio_h
#include <artsc.h>
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* The stream descriptor for the audio device */
arts_stream_t stream;
/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
/* Support for audio timing using a timer, in addition to select() */
float frame_ticks;
float next_frame;
};
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
#endif /* _SDL_artscaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to the audio stream on BeOS */
#include <SoundPlayer.h>
#include "../../main/beos/SDL_BeApp.h"
extern "C"
{
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "../SDL_sysaudio.h"
#include "../../thread/beos/SDL_systhread_c.h"
#include "SDL_beaudio.h"
}
/* !!! FIXME: have the callback call the higher level to avoid code dupe. */
/* The BeOS callback for handling the audio buffer */
static void
FillSound(void *device, void *stream, size_t len,
const media_raw_audio_format & format)
{
SDL_AudioDevice *audio = (SDL_AudioDevice *) device;
/* Silence the buffer, since it's ours */
SDL_memset(stream, audio->spec.silence, len);
/* Only do soemthing if audio is enabled */
if (!audio->enabled)
return;
if (!audio->paused) {
if (audio->convert.needed) {
SDL_mutexP(audio->mixer_lock);
(*audio->spec.callback) (audio->spec.userdata,
(Uint8 *) audio->convert.buf,
audio->convert.len);
SDL_mutexV(audio->mixer_lock);
SDL_ConvertAudio(&audio->convert);
SDL_memcpy(stream, audio->convert.buf, audio->convert.len_cvt);
} else {
SDL_mutexP(audio->mixer_lock);
(*audio->spec.callback) (audio->spec.userdata,
(Uint8 *) stream, len);
SDL_mutexV(audio->mixer_lock);
}
}
}
static void
BEOSAUDIO_CloseDevice(_THIS)
{
if (_this->hidden != NULL) {
if (_this->hidden->audio_obj) {
_this->hidden->audio_obj->Stop();
delete _this->hidden->audio_obj;
_this->hidden->audio_obj = NULL;
}
delete _this->hidden;
_this->hidden = NULL;
}
}
static int
BEOSAUDIO_OpenDevice(_THIS, const char *devname, int iscapture)
{
int valid_datatype = 0;
media_raw_audio_format format;
SDL_AudioFormat test_format = SDL_FirstAudioFormat(_this->spec.format);
/* Initialize all variables that we clean on shutdown */
_this->hidden = new SDL_PrivateAudioData;
if (_this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(_this->hidden, 0, (sizeof *_this->hidden));
/* Parse the audio format and fill the Be raw audio format */
SDL_memset(&format, '\0', sizeof(media_raw_audio_format));
format.byte_order = B_MEDIA_LITTLE_ENDIAN;
format.frame_rate = (float) _this->spec.freq;
format.channel_count = _this->spec.channels; /* !!! FIXME: support > 2? */
while ((!valid_datatype) && (test_format)) {
valid_datatype = 1;
_this->spec.format = test_format;
switch (test_format) {
case AUDIO_S8:
format.format = media_raw_audio_format::B_AUDIO_CHAR;
break;
case AUDIO_U8:
format.format = media_raw_audio_format::B_AUDIO_UCHAR;
break;
case AUDIO_S16LSB:
format.format = media_raw_audio_format::B_AUDIO_SHORT;
break;
case AUDIO_S16MSB:
format.format = media_raw_audio_format::B_AUDIO_SHORT;
format.byte_order = B_MEDIA_BIG_ENDIAN;
break;
case AUDIO_S32LSB:
format.format = media_raw_audio_format::B_AUDIO_INT;
break;
case AUDIO_S32MSB:
format.format = media_raw_audio_format::B_AUDIO_INT;
format.byte_order = B_MEDIA_BIG_ENDIAN;
break;
case AUDIO_F32LSB:
format.format = media_raw_audio_format::B_AUDIO_FLOAT;
break;
case AUDIO_F32MSB:
format.format = media_raw_audio_format::B_AUDIO_FLOAT;
format.byte_order = B_MEDIA_BIG_ENDIAN;
break;
default:
valid_datatype = 0;
test_format = SDL_NextAudioFormat();
break;
}
}
format.buffer_size = _this->spec.samples;
if (!valid_datatype) { /* shouldn't happen, but just in case... */
BEOSAUDIO_CloseDevice(_this);
SDL_SetError("Unsupported audio format");
return 0;
}
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&_this->spec);
/* Subscribe to the audio stream (creates a new thread) */
sigset_t omask;
SDL_MaskSignals(&omask);
_this->hidden->audio_obj = new BSoundPlayer(&format, "SDL Audio",
FillSound, NULL, _this);
SDL_UnmaskSignals(&omask);
if (_this->hidden->audio_obj->Start() == B_NO_ERROR) {
_this->hidden->audio_obj->SetHasData(true);
} else {
BEOSAUDIO_CloseDevice(_this);
SDL_SetError("Unable to start Be audio");
return 0;
}
/* We're running! */
return 1;
}
static void
BEOSAUDIO_Deinitialize(void)
{
SDL_QuitBeApp();
}
static int
BEOSAUDIO_Init(SDL_AudioDriverImpl * impl)
{
/* Initialize the Be Application, if it's not already started */
if (SDL_InitBeApp() < 0) {
return 0;
}
/* Set the function pointers */
impl->OpenDevice = BEOSAUDIO_OpenDevice;
impl->CloseDevice = BEOSAUDIO_CloseDevice;
impl->Deinitialize = BEOSAUDIO_Deinitialize;
impl->ProvidesOwnCallbackThread = 1;
impl->OnlyHasDefaultOutputDevice = 1;
return 1;
}
extern "C"
{
extern AudioBootStrap BEOSAUDIO_bootstrap;
}
AudioBootStrap BEOSAUDIO_bootstrap = {
"baudio", "BeOS BSoundPlayer", BEOSAUDIO_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_beaudio_h
#define _SDL_beaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *_this
struct SDL_PrivateAudioData
{
BSoundPlayer *audio_obj;
};
#endif /* _SDL_beaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/*
* Driver for native OpenBSD/NetBSD audio(4).
* vedge@vedge.com.ar.
*/
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/audioio.h>
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "../SDL_audiodev_c.h"
#include "SDL_bsdaudio.h"
/* The tag name used by NetBSD/OpenBSD audio */
#ifdef __NetBSD__
#define BSD_AUDIO_DRIVER_NAME "netbsd"
#define BSD_AUDIO_DRIVER_DESC "Native NetBSD audio"
#else
#define BSD_AUDIO_DRIVER_NAME "openbsd"
#define BSD_AUDIO_DRIVER_DESC "Native OpenBSD audio"
#endif
/* Open the audio device for playback, and don't block if busy */
/* #define USE_BLOCKING_WRITES */
/* Use timer for synchronization */
/* #define USE_TIMER_SYNC */
/* #define DEBUG_AUDIO */
/* #define DEBUG_AUDIO_STREAM */
#ifdef USE_BLOCKING_WRITES
#define OPEN_FLAGS_OUTPUT O_WRONLY
#define OPEN_FLAGS_INPUT O_RDONLY
#else
#define OPEN_FLAGS_OUTPUT (O_WRONLY|O_NONBLOCK)
#define OPEN_FLAGS_INPUT (O_RDONLY|O_NONBLOCK)
#endif
/* !!! FIXME: so much cut and paste with dsp/dma drivers... */
static char **outputDevices = NULL;
static int outputDeviceCount = 0;
static char **inputDevices = NULL;
static int inputDeviceCount = 0;
static inline void
free_device_list(char ***devs, int *count)
{
SDL_FreeUnixAudioDevices(devs, count);
}
static inline void
build_device_list(int iscapture, char ***devs, int *count)
{
const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
free_device_list(devs, count);
SDL_EnumUnixAudioDevices(flags, 0, NULL, devs, count);
}
static inline void
build_device_lists(void)
{
build_device_list(0, &outputDevices, &outputDeviceCount);
build_device_list(1, &inputDevices, &inputDeviceCount);
}
static inline void
free_device_lists(void)
{
free_device_list(&outputDevices, &outputDeviceCount);
free_device_list(&inputDevices, &inputDeviceCount);
}
static void
BSDAUDIO_Deinitialize(void)
{
free_device_lists();
}
static int
BSDAUDIO_DetectDevices(int iscapture)
{
if (iscapture) {
build_device_list(1, &inputDevices, &inputDeviceCount);
return inputDeviceCount;
} else {
build_device_list(0, &outputDevices, &outputDeviceCount);
return outputDeviceCount;
}
return 0; /* shouldn't ever hit this. */
}
static const char *
BSDAUDIO_GetDeviceName(int index, int iscapture)
{
if ((iscapture) && (index < inputDeviceCount)) {
return inputDevices[index];
} else if ((!iscapture) && (index < outputDeviceCount)) {
return outputDevices[index];
}
SDL_SetError("No such device");
return NULL;
}
static void
BSDAUDIO_Status(_THIS)
{
#ifdef DEBUG_AUDIO
/* *INDENT-OFF* */
audio_info_t info;
if (ioctl(this->hidden->audio_fd, AUDIO_GETINFO, &info) < 0) {
fprintf(stderr, "AUDIO_GETINFO failed.\n");
return;
}
fprintf(stderr, "\n"
"[play/record info]\n"
"buffer size : %d bytes\n"
"sample rate : %i Hz\n"
"channels : %i\n"
"precision : %i-bit\n"
"encoding : 0x%x\n"
"seek : %i\n"
"sample count : %i\n"
"EOF count : %i\n"
"paused : %s\n"
"error occured : %s\n"
"waiting : %s\n"
"active : %s\n"
"",
info.play.buffer_size,
info.play.sample_rate,
info.play.channels,
info.play.precision,
info.play.encoding,
info.play.seek,
info.play.samples,
info.play.eof,
info.play.pause ? "yes" : "no",
info.play.error ? "yes" : "no",
info.play.waiting ? "yes" : "no",
info.play.active ? "yes" : "no");
fprintf(stderr, "\n"
"[audio info]\n"
"monitor_gain : %i\n"
"hw block size : %d bytes\n"
"hi watermark : %i\n"
"lo watermark : %i\n"
"audio mode : %s\n"
"",
info.monitor_gain,
info.blocksize,
info.hiwat, info.lowat,
(info.mode == AUMODE_PLAY) ? "PLAY"
: (info.mode = AUMODE_RECORD) ? "RECORD"
: (info.mode == AUMODE_PLAY_ALL ? "PLAY_ALL" : "?"));
/* *INDENT-ON* */
#endif /* DEBUG_AUDIO */
}
/* This function waits until it is possible to write a full sound buffer */
static void
BSDAUDIO_WaitDevice(_THIS)
{
#ifndef USE_BLOCKING_WRITES /* Not necessary when using blocking writes */
/* See if we need to use timed audio synchronization */
if (this->hidden->frame_ticks) {
/* Use timer for general audio synchronization */
Sint32 ticks;
ticks =
((Sint32) (this->hidden->next_frame - SDL_GetTicks())) -
FUDGE_TICKS;
if (ticks > 0) {
SDL_Delay(ticks);
}
} else {
/* Use select() for audio synchronization */
fd_set fdset;
struct timeval timeout;
FD_ZERO(&fdset);
FD_SET(this->hidden->audio_fd, &fdset);
timeout.tv_sec = 10;
timeout.tv_usec = 0;
#ifdef DEBUG_AUDIO
fprintf(stderr, "Waiting for audio to get ready\n");
#endif
if (select(this->hidden->audio_fd + 1, NULL, &fdset, NULL, &timeout)
<= 0) {
const char *message =
"Audio timeout - buggy audio driver? (disabled)";
/* In general we should never print to the screen,
but in this case we have no other way of letting
the user know what happened.
*/
fprintf(stderr, "SDL: %s\n", message);
this->enabled = 0;
/* Don't try to close - may hang */
this->hidden->audio_fd = -1;
#ifdef DEBUG_AUDIO
fprintf(stderr, "Done disabling audio\n");
#endif
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Ready!\n");
#endif
}
#endif /* !USE_BLOCKING_WRITES */
}
static void
BSDAUDIO_PlayDevice(_THIS)
{
int written, p = 0;
/* Write the audio data, checking for EAGAIN on broken audio drivers */
do {
written = write(this->hidden->audio_fd,
&this->hidden->mixbuf[p], this->hidden->mixlen - p);
if (written > 0)
p += written;
if (written == -1 && errno != 0 && errno != EAGAIN && errno != EINTR) {
/* Non recoverable error has occurred. It should be reported!!! */
perror("audio");
break;
}
if (p < written
|| ((written < 0) && ((errno == 0) || (errno == EAGAIN)))) {
SDL_Delay(1); /* Let a little CPU time go by */
}
} while (p < written);
/* If timer synchronization is enabled, set the next write frame */
if (this->hidden->frame_ticks) {
this->hidden->next_frame += this->hidden->frame_ticks;
}
/* If we couldn't write, assume fatal error for now */
if (written < 0) {
this->enabled = 0;
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", written);
#endif
}
static Uint8 *
BSDAUDIO_GetDeviceBuf(_THIS)
{
return (this->hidden->mixbuf);
}
static void
BSDAUDIO_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->mixbuf != NULL) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if (this->hidden->audio_fd >= 0) {
close(this->hidden->audio_fd);
this->hidden->audio_fd = -1;
}
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static int
BSDAUDIO_OpenDevice(_THIS, const char *devname, int iscapture)
{
const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
SDL_AudioFormat format = 0;
audio_info_t info;
/* We don't care what the devname is...we'll try to open anything. */
/* ...but default to first name in the list... */
if (devname == NULL) {
if (((iscapture) && (inputDeviceCount == 0)) ||
((!iscapture) && (outputDeviceCount == 0))) {
SDL_SetError("No such audio device");
return 0;
}
devname = ((iscapture) ? inputDevices[0] : outputDevices[0]);
}
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Open the audio device */
this->hidden->audio_fd = open(devname, flags, 0);
if (this->hidden->audio_fd < 0) {
SDL_SetError("Couldn't open %s: %s", devname, strerror(errno));
return 0;
}
AUDIO_INITINFO(&info);
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
/* Set to play mode */
info.mode = AUMODE_PLAY;
if (ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info) < 0) {
BSDAUDIO_CloseDevice(this);
SDL_SetError("Couldn't put device into play mode");
return 0;
}
AUDIO_INITINFO(&info);
for (format = SDL_FirstAudioFormat(this->spec.format);
format; format = SDL_NextAudioFormat()) {
switch (format) {
case AUDIO_U8:
info.play.encoding = AUDIO_ENCODING_ULINEAR;
info.play.precision = 8;
break;
case AUDIO_S8:
info.play.encoding = AUDIO_ENCODING_SLINEAR;
info.play.precision = 8;
break;
case AUDIO_S16LSB:
info.play.encoding = AUDIO_ENCODING_SLINEAR_LE;
info.play.precision = 16;
break;
case AUDIO_S16MSB:
info.play.encoding = AUDIO_ENCODING_SLINEAR_BE;
info.play.precision = 16;
break;
case AUDIO_U16LSB:
info.play.encoding = AUDIO_ENCODING_ULINEAR_LE;
info.play.precision = 16;
break;
case AUDIO_U16MSB:
info.play.encoding = AUDIO_ENCODING_ULINEAR_BE;
info.play.precision = 16;
break;
default:
continue;
}
if (ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info) == 0) {
break;
}
}
if (!format) {
BSDAUDIO_CloseDevice(this);
SDL_SetError("No supported encoding for 0x%x", this->spec.format);
return 0;
}
this->spec.format = format;
AUDIO_INITINFO(&info);
info.play.channels = this->spec.channels;
if (ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info) == -1) {
this->spec.channels = 1;
}
AUDIO_INITINFO(&info);
info.play.sample_rate = this->spec.freq;
info.blocksize = this->spec.size;
info.hiwat = 5;
info.lowat = 3;
(void) ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info);
(void) ioctl(this->hidden->audio_fd, AUDIO_GETINFO, &info);
this->spec.freq = info.play.sample_rate;
/* Allocate mixing buffer */
this->hidden->mixlen = this->spec.size;
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if (this->hidden->mixbuf == NULL) {
BSDAUDIO_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
BSDAUDIO_Status(this);
/* We're ready to rock and roll. :-) */
return (0);
}
static int
BSDAUDIO_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->DetectDevices = BSDAUDIO_DetectDevices;
impl->GetDeviceName = BSDAUDIO_GetDeviceName;
impl->OpenDevice = BSDAUDIO_OpenDevice;
impl->PlayDevice = BSDAUDIO_PlayDevice;
impl->WaitDevice = BSDAUDIO_WaitDevice;
impl->GetDeviceBuf = BSDAUDIO_GetDeviceBuf;
impl->CloseDevice = BSDAUDIO_CloseDevice;
impl->Deinitialize = BSDAUDIO_Deinitialize;
build_device_lists();
return (outputDeviceCount > 0) ? 2 : 1;
}
AudioBootStrap BSD_AUDIO_bootstrap = {
BSD_AUDIO_DRIVER_NAME, BSD_AUDIO_DRIVER_DESC, BSDAUDIO_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_bsdaudio_h
#define _SDL_bsdaudio_h
#include "../SDL_sysaudio.h"
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* The file descriptor for the audio device */
int audio_fd;
/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
/* Support for audio timing using a timer, in addition to select() */
float frame_ticks;
float next_frame;
};
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
#endif /* _SDL_bsdaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
This file written by Ryan C. Gordon (icculus@icculus.org)
*/
#include "SDL_config.h"
/* Output raw audio data to a file. */
#if HAVE_STDIO_H
#include <stdio.h>
#endif
#include "SDL_rwops.h"
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "SDL_diskaudio.h"
/* The tag name used by DISK audio */
#define DISKAUD_DRIVER_NAME "disk"
/* environment variables and defaults. */
#define DISKENVR_OUTFILE "SDL_DISKAUDIOFILE"
#define DISKDEFAULT_OUTFILE "sdlaudio.raw"
#define DISKENVR_WRITEDELAY "SDL_DISKAUDIODELAY"
#define DISKDEFAULT_WRITEDELAY 150
static const char *
DISKAUD_GetOutputFilename(const char *devname)
{
if (devname == NULL) {
devname = SDL_getenv(DISKENVR_OUTFILE);
if (devname == NULL) {
devname = DISKDEFAULT_OUTFILE;
}
}
return devname;
}
/* This function waits until it is possible to write a full sound buffer */
static void
DISKAUD_WaitDevice(_THIS)
{
SDL_Delay(this->hidden->write_delay);
}
static void
DISKAUD_PlayDevice(_THIS)
{
size_t written;
/* Write the audio data */
written = SDL_RWwrite(this->hidden->output,
this->hidden->mixbuf, 1, this->hidden->mixlen);
/* If we couldn't write, assume fatal error for now */
if (written != this->hidden->mixlen) {
this->enabled = 0;
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", written);
#endif
}
static Uint8 *
DISKAUD_GetDeviceBuf(_THIS)
{
return (this->hidden->mixbuf);
}
static void
DISKAUD_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->mixbuf != NULL) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if (this->hidden->output != NULL) {
SDL_RWclose(this->hidden->output);
this->hidden->output = NULL;
}
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static int
DISKAUD_OpenDevice(_THIS, const char *devname, int iscapture)
{
const char *envr = SDL_getenv(DISKENVR_WRITEDELAY);
const char *fname = DISKAUD_GetOutputFilename(devname);
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc(sizeof(*this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, sizeof(*this->hidden));
/* Open the audio device */
this->hidden->output = SDL_RWFromFile(fname, "wb");
if (this->hidden->output == NULL) {
DISKAUD_CloseDevice(this);
return 0;
}
/* Allocate mixing buffer */
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if (this->hidden->mixbuf == NULL) {
DISKAUD_CloseDevice(this);
return 0;
}
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
this->hidden->mixlen = this->spec.size;
this->hidden->write_delay =
(envr) ? SDL_atoi(envr) : DISKDEFAULT_WRITEDELAY;
#if HAVE_STDIO_H
fprintf(stderr,
"WARNING: You are using the SDL disk writer audio driver!\n"
" Writing to file [%s].\n", fname);
#endif
/* We're ready to rock and roll. :-) */
return 1;
}
static int
DISKAUD_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->OpenDevice = DISKAUD_OpenDevice;
impl->WaitDevice = DISKAUD_WaitDevice;
impl->PlayDevice = DISKAUD_PlayDevice;
impl->GetDeviceBuf = DISKAUD_GetDeviceBuf;
impl->CloseDevice = DISKAUD_CloseDevice;
return 1;
}
AudioBootStrap DISKAUD_bootstrap = {
DISKAUD_DRIVER_NAME, "direct-to-disk audio", DISKAUD_Init, 1
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_diskaudio_h
#define _SDL_diskaudio_h
#include "SDL_rwops.h"
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* The file descriptor for the audio device */
SDL_RWops *output;
Uint8 *mixbuf;
Uint32 mixlen;
Uint32 write_delay;
};
#endif /* _SDL_diskaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* !!! FIXME: merge this driver with "dsp". */
/* Allow access to a raw mixing buffer */
#include <stdio.h>
#include <string.h> /* For strerror() */
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/mman.h>
#if SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H
/* This is installed on some systems */
#include <soundcard.h>
#else
/* This is recommended by OSS */
#include <sys/soundcard.h>
#endif
#ifndef MAP_FAILED
#define MAP_FAILED ((Uint8 *)-1)
#endif
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "../SDL_audiodev_c.h"
#include "SDL_dmaaudio.h"
/* The tag name used by DMA audio */
#define DMA_DRIVER_NAME "dma"
/* Open the audio device for playback, and don't block if busy */
#define OPEN_FLAGS_INPUT (O_RDWR|O_NONBLOCK)
#define OPEN_FLAGS_OUTPUT (O_RDWR|O_NONBLOCK)
static char **outputDevices = NULL;
static int outputDeviceCount = 0;
static char **inputDevices = NULL;
static int inputDeviceCount = 0;
static int
test_for_mmap(int fd)
{
int caps = 0;
struct audio_buf_info info;
if ((ioctl(fd, SNDCTL_DSP_GETCAPS, &caps) == 0) &&
(caps & DSP_CAP_TRIGGER) && (caps & DSP_CAP_MMAP) &&
(ioctl(fd, SNDCTL_DSP_GETOSPACE, &info) == 0)) {
size_t len = info.fragstotal * info.fragsize;
Uint8 *buf = (Uint8 *) mmap(NULL, len, PROT_WRITE, MAP_SHARED, fd, 0);
if (buf != MAP_FAILED) {
munmap(buf, len);
return 1;
}
}
return 0;
}
static inline void
free_device_list(char ***devs, int *count)
{
SDL_FreeUnixAudioDevices(devs, count);
}
static inline void
build_device_list(int iscapture, char ***devs, int *count)
{
const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
free_device_list(devs, count);
SDL_EnumUnixAudioDevices(flags, 0, test_for_mmap, devs, count);
}
static inline void
build_device_lists(void)
{
build_device_list(0, &outputDevices, &outputDeviceCount);
build_device_list(1, &inputDevices, &inputDeviceCount);
}
static inline void
free_device_lists(void)
{
free_device_list(&outputDevices, &outputDeviceCount);
free_device_list(&inputDevices, &inputDeviceCount);
}
static void
DMA_Deinitialize(void)
{
free_device_lists();
}
static int
DMA_DetectDevices(int iscapture)
{
if (iscapture) {
build_device_list(1, &inputDevices, &inputDeviceCount);
return inputDeviceCount;
} else {
build_device_list(0, &outputDevices, &outputDeviceCount);
return outputDeviceCount;
}
return 0; /* shouldn't ever hit this. */
}
static const char *
DMA_GetDeviceName(int index, int iscapture)
{
if ((iscapture) && (index < inputDeviceCount)) {
return inputDevices[index];
} else if ((!iscapture) && (index < outputDeviceCount)) {
return outputDevices[index];
}
SDL_SetError("No such device");
return NULL;
}
static int
DMA_ReopenAudio(_THIS, const char *audiodev, int format, int stereo)
{
int frag_spec;
int value;
/* Close and then reopen the audio device */
close(audio_fd);
audio_fd = open(audiodev, O_RDWR, 0);
if (audio_fd < 0) {
SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno));
return (-1);
}
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
/* Determine the power of two of the fragment size */
for (frag_spec = 0; (0x01 << frag_spec) < this->spec.size; ++frag_spec);
if ((0x01 << frag_spec) != this->spec.size) {
SDL_SetError("Fragment size must be a power of two");
return (-1);
}
/* Set the audio buffering parameters */
if (ioctl(audio_fd, SNDCTL_DSP_SETFRAGMENT, &frag_spec) < 0) {
SDL_SetError("Couldn't set audio fragment spec");
return (-1);
}
/* Set the audio format */
value = format;
if ((ioctl(audio_fd, SNDCTL_DSP_SETFMT, &value) < 0) || (value != format)) {
SDL_SetError("Couldn't set audio format");
return (-1);
}
/* Set mono or stereo audio */
value = (this->spec.channels > 1);
if ((ioctl(audio_fd, SNDCTL_DSP_STEREO, &stereo) < 0) ||
(value != stereo)) {
SDL_SetError("Couldn't set audio channels");
return (-1);
}
/* Set the DSP frequency */
value = this->spec.freq;
if (ioctl(audio_fd, SNDCTL_DSP_SPEED, &value) < 0) {
SDL_SetError("Couldn't set audio frequency");
return (-1);
}
this->spec.freq = value;
/* We successfully re-opened the audio */
return (0);
}
static void
DMA_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (dma_buf != NULL) {
munmap(dma_buf, dma_len);
dma_buf = NULL;
}
if (audio_fd >= 0) {
close(audio_fd);
audio_fd = -1;
}
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static int
DMA_OpenDevice(_THIS, const char *devname, int iscapture)
{
const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
int format;
int stereo;
int value;
SDL_AudioFormat test_format;
struct audio_buf_info info;
/* We don't care what the devname is...we'll try to open anything. */
/* ...but default to first name in the list... */
if (devname == NULL) {
if (((iscapture) && (inputDeviceCount == 0)) ||
((!iscapture) && (outputDeviceCount == 0))) {
SDL_SetError("No such audio device");
return 0;
}
devname = ((iscapture) ? inputDevices[0] : outputDevices[0]);
}
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Open the audio device */
audio_fd = open(devname, flags, 0);
if (audio_fd < 0) {
DMA_CloseDevice(this);
SDL_SetError("Couldn't open %s: %s", devname, strerror(errno));
return 0;
}
dma_buf = NULL;
ioctl(audio_fd, SNDCTL_DSP_RESET, 0);
/* Get a list of supported hardware formats */
if (ioctl(audio_fd, SNDCTL_DSP_GETFMTS, &value) < 0) {
DMA_CloseDevice(this);
SDL_SetError("Couldn't get audio format list");
return 0;
}
/* Try for a closest match on audio format */
format = 0;
for (test_format = SDL_FirstAudioFormat(this->spec.format);
!format && test_format;) {
#ifdef DEBUG_AUDIO
fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
#endif
switch (test_format) {
case AUDIO_U8:
if (value & AFMT_U8) {
format = AFMT_U8;
}
break;
case AUDIO_S8:
if (value & AFMT_S8) {
format = AFMT_S8;
}
break;
case AUDIO_S16LSB:
if (value & AFMT_S16_LE) {
format = AFMT_S16_LE;
}
break;
case AUDIO_S16MSB:
if (value & AFMT_S16_BE) {
format = AFMT_S16_BE;
}
break;
case AUDIO_U16LSB:
if (value & AFMT_U16_LE) {
format = AFMT_U16_LE;
}
break;
case AUDIO_U16MSB:
if (value & AFMT_U16_BE) {
format = AFMT_U16_BE;
}
break;
default:
format = 0;
break;
}
if (!format) {
test_format = SDL_NextAudioFormat();
}
}
if (format == 0) {
DMA_CloseDevice(this);
SDL_SetError("Couldn't find any hardware audio formats");
return 0;
}
this->spec.format = test_format;
/* Set the audio format */
value = format;
if ((ioctl(audio_fd, SNDCTL_DSP_SETFMT, &value) < 0) || (value != format)) {
DMA_CloseDevice(this);
SDL_SetError("Couldn't set audio format");
return 0;
}
/* Set mono or stereo audio (currently only two channels supported) */
stereo = (this->spec.channels > 1);
ioctl(audio_fd, SNDCTL_DSP_STEREO, &stereo);
if (stereo) {
this->spec.channels = 2;
} else {
this->spec.channels = 1;
}
/* Because some drivers don't allow setting the buffer size
after setting the format, we must re-open the audio device
once we know what format and channels are supported
*/
if (DMA_ReopenAudio(this, devname, format, stereo) < 0) {
DMA_CloseDevice(this);
/* Error is set by DMA_ReopenAudio() */
return 0;
}
/* Memory map the audio buffer */
if (ioctl(audio_fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
DMA_CloseDevice(this);
SDL_SetError("Couldn't get OSPACE parameters");
return 0;
}
this->spec.size = info.fragsize;
this->spec.samples = this->spec.size / ((this->spec.format & 0xFF) / 8);
this->spec.samples /= this->spec.channels;
num_buffers = info.fragstotal;
dma_len = num_buffers * this->spec.size;
dma_buf = (Uint8 *) mmap(NULL, dma_len, PROT_WRITE, MAP_SHARED,
audio_fd, 0);
if (dma_buf == MAP_FAILED) {
DMA_CloseDevice(this);
SDL_SetError("DMA memory map failed");
dma_buf = NULL;
return 0;
}
SDL_memset(dma_buf, this->spec.silence, dma_len);
/* Check to see if we need to use select() workaround */
{
char *workaround;
workaround = SDL_getenv("SDL_DSP_NOSELECT");
if (workaround) {
frame_ticks =
(float) (this->spec.samples * 1000) / this->spec.freq;
next_frame = SDL_GetTicks() + frame_ticks;
}
}
/* Trigger audio playback */
value = 0;
ioctl(audio_fd, SNDCTL_DSP_SETTRIGGER, &value);
value = PCM_ENABLE_OUTPUT;
if (ioctl(audio_fd, SNDCTL_DSP_SETTRIGGER, &value) < 0) {
DMA_CloseDevice(this);
SDL_SetError("Couldn't trigger audio output");
return 0;
}
/* Get the parent process id (we're the parent of the audio thread) */
parent = getpid();
/* We're ready to rock and roll. :-) */
return 1;
}
/* This function waits until it is possible to write a full sound buffer */
static void
DMA_WaitDevice(_THIS)
{
fd_set fdset;
/* Check to see if the thread-parent process is still alive */
{
static int cnt = 0;
/* Note that this only works with thread implementations
that use a different process id for each thread.
*/
if (parent && (((++cnt) % 10) == 0)) { /* Check every 10 loops */
if (kill(parent, 0) < 0 && errno == ESRCH) {
this->enabled = 0;
}
}
}
/* See if we need to use timed audio synchronization */
if (frame_ticks) {
/* Use timer for general audio synchronization */
Sint32 ticks;
ticks = ((Sint32) (next_frame - SDL_GetTicks())) - FUDGE_TICKS;
if (ticks > 0) {
SDL_Delay(ticks);
}
} else {
/* Use select() for audio synchronization */
struct timeval timeout;
FD_ZERO(&fdset);
FD_SET(audio_fd, &fdset);
timeout.tv_sec = 10;
timeout.tv_usec = 0;
#ifdef DEBUG_AUDIO
fprintf(stderr, "Waiting for audio to get ready\n");
#endif
if (select(audio_fd + 1, NULL, &fdset, NULL, &timeout) <= 0) {
const char *message =
#ifdef AUDIO_OSPACE_HACK
"Audio timeout - buggy audio driver? (trying ospace)";
#else
"Audio timeout - buggy audio driver? (disabled)";
#endif
/* In general we should never print to the screen,
but in this case we have no other way of letting
the user know what happened.
*/
fprintf(stderr, "SDL: %s\n", message);
#ifdef AUDIO_OSPACE_HACK
/* We may be able to use GET_OSPACE trick */
frame_ticks = (float) (this->spec.samples * 1000) /
this->spec.freq;
next_frame = SDL_GetTicks() + frame_ticks;
#else
this->enabled = 0;
/* Don't try to close - may hang */
audio_fd = -1;
#ifdef DEBUG_AUDIO
fprintf(stderr, "Done disabling audio\n");
#endif
#endif /* AUDIO_OSPACE_HACK */
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Ready!\n");
#endif
}
}
static void
DMA_PlayDevice(_THIS)
{
/* If timer synchronization is enabled, set the next write frame */
if (frame_ticks) {
next_frame += frame_ticks;
}
return;
}
static Uint8 *
DMA_GetDeviceBuf(_THIS)
{
count_info info;
int playing;
int filling;
/* Get number of blocks, looping if we're not using select() */
do {
if (ioctl(audio_fd, SNDCTL_DSP_GETOPTR, &info) < 0) {
/* Uh oh... */
this->enabled = 0;
return (NULL);
}
} while (frame_ticks && (info.blocks < 1));
#ifdef DEBUG_AUDIO
if (info.blocks > 1) {
printf("Warning: audio underflow (%d frags)\n", info.blocks - 1);
}
#endif
playing = info.ptr / this->spec.size;
filling = (playing + 1) % num_buffers;
return (dma_buf + (filling * this->spec.size));
}
static int
DMA_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->DetectDevices = DMA_DetectDevices;
impl->GetDeviceName = DMA_GetDeviceName;
impl->OpenDevice = DMA_OpenDevice;
impl->WaitDevice = DMA_WaitDevice;
impl->PlayDevice = DMA_PlayDevice;
impl->GetDeviceBuf = DMA_GetDeviceBuf;
impl->CloseDevice = DMA_CloseDevice;
impl->Deinitialize = DMA_Deinitialize;
build_device_lists();
return (outputDeviceCount > 0) ? 2 : 1;
}
AudioBootStrap DMA_bootstrap = {
DMA_DRIVER_NAME, "OSS /dev/dsp DMA audio", DMA_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_dmaaudio_h
#define _SDL_dmaaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* The file descriptor for the audio device */
int audio_fd;
/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
Uint8 *dma_buf;
int dma_len;
int num_buffers;
/* Support for audio timing using a timer, in addition to select() */
float frame_ticks;
float next_frame;
};
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
/* Old variable names */
/* !!! FIXME: remove these. */
#define audio_fd (this->hidden->audio_fd)
#define parent (this->hidden->parent)
#define dma_buf (this->hidden->dma_buf)
#define dma_len (this->hidden->dma_len)
#define num_buffers (this->hidden->num_buffers)
#define frame_ticks (this->hidden->frame_ticks)
#define next_frame (this->hidden->next_frame)
#endif /* _SDL_dmaaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include <errno.h>
#include "SDL_config.h"
/* Allow access to a raw mixing buffer (For IRIX 6.5 and higher) */
/* patch for IRIX 5 by Georg Schwarz 18/07/2004 */
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "SDL_irixaudio.h"
#ifndef AL_RESOURCE /* as a test whether we use the old IRIX audio libraries */
#define OLD_IRIX_AUDIO
#define alClosePort(x) ALcloseport(x)
#define alFreeConfig(x) ALfreeconfig(x)
#define alGetFillable(x) ALgetfillable(x)
#define alNewConfig() ALnewconfig()
#define alOpenPort(x,y,z) ALopenport(x,y,z)
#define alSetChannels(x,y) ALsetchannels(x,y)
#define alSetQueueSize(x,y) ALsetqueuesize(x,y)
#define alSetSampFmt(x,y) ALsetsampfmt(x,y)
#define alSetWidth(x,y) ALsetwidth(x,y)
#endif
void static
IRIXAUDIO_WaitDevice(_THIS)
{
Sint32 timeleft;
timeleft = this->spec.samples - alGetFillable(this->hidden->audio_port);
if (timeleft > 0) {
timeleft /= (this->spec.freq / 1000);
SDL_Delay((Uint32) timeleft);
}
}
static void
IRIXAUDIO_PlayDevice(_THIS)
{
/* Write the audio data out */
ALport port = this->hidden->audio_port;
Uint8 *mixbuf = this->hidden->mixbuf;
if (alWriteFrames(port, mixbuf, this->spec.samples) < 0) {
/* Assume fatal error, for now */
this->enabled = 0;
}
}
static Uint8 *
IRIXAUDIO_GetDeviceBuf(_THIS)
{
return (this->hidden->mixbuf);
}
static void
IRIXAUDIO_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->mixbuf != NULL) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if (this->hidden->audio_port != NULL) {
alClosePort(this->hidden->audio_port);
this->hidden->audio_port = NULL;
}
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static int
IRIXAUDIO_OpenDevice(_THIS, const char *devname, int iscapture)
{
SDL_AudioFormat test_format = SDL_FirstAudioFormat(this->spec.format);
long width = 0;
long fmt = 0;
int valid = 0;
/* !!! FIXME: Handle multiple devices and capture? */
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
#ifdef OLD_IRIX_AUDIO
{
long audio_param[2];
audio_param[0] = AL_OUTPUT_RATE;
audio_param[1] = this->spec.freq;
valid = (ALsetparams(AL_DEFAULT_DEVICE, audio_param, 2) < 0);
}
#else
{
ALpv audio_param;
audio_param.param = AL_RATE;
audio_param.value.i = this->spec.freq;
valid = (alSetParams(AL_DEFAULT_OUTPUT, &audio_param, 1) < 0);
}
#endif
while ((!valid) && (test_format)) {
valid = 1;
this->spec.format = test_format;
switch (test_format) {
case AUDIO_S8:
width = AL_SAMPLE_8;
fmt = AL_SAMPFMT_TWOSCOMP;
break;
case AUDIO_S16SYS:
width = AL_SAMPLE_16;
fmt = AL_SAMPFMT_TWOSCOMP;
break;
case AUDIO_F32SYS:
width = 0; /* not used here... */
fmt = AL_SAMPFMT_FLOAT;
break;
/* Docs say there is int24, but not int32.... */
default:
valid = 0;
test_format = SDL_NextAudioFormat();
break;
}
if (valid) {
ALconfig audio_config = alNewConfig();
valid = 0;
if (audio_config) {
if (alSetChannels(audio_config, this->spec.channels) < 0) {
if (this->spec.channels > 2) { /* can't handle > stereo? */
this->spec.channels = 2; /* try again below. */
}
}
if ((alSetSampFmt(audio_config, fmt) >= 0) &&
((!width) || (alSetWidth(audio_config, width) >= 0)) &&
(alSetQueueSize(audio_config, this->spec.samples * 2) >=
0)
&& (alSetChannels(audio_config, this->spec.channels) >=
0)) {
this->hidden->audio_port = alOpenPort("SDL audio", "w",
audio_config);
if (this->hidden->audio_port == NULL) {
/* docs say AL_BAD_CHANNELS happens here, too. */
int err = oserror();
if (err == AL_BAD_CHANNELS) {
this->spec.channels = 2;
alSetChannels(audio_config, this->spec.channels);
this->hidden->audio_port =
alOpenPort("SDL audio", "w", audio_config);
}
}
if (this->hidden->audio_port != NULL) {
valid = 1;
}
}
alFreeConfig(audio_config);
}
}
}
if (!valid) {
IRIXAUDIO_CloseDevice(this);
SDL_SetError("Unsupported audio format");
return 0;
}
/* Update the fragment size as size in bytes */
SDL_CalculateAudioSpec(&this->spec);
/* Allocate mixing buffer */
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->spec.size);
if (this->hidden->mixbuf == NULL) {
IRIXAUDIO_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
/* We're ready to rock and roll. :-) */
return 1;
}
static int
IRIXAUDIO_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->OpenDevice = DSP_OpenDevice;
impl->PlayDevice = DSP_PlayDevice;
impl->WaitDevice = DSP_WaitDevice;
impl->GetDeviceBuf = DSP_GetDeviceBuf;
impl->CloseDevice = DSP_CloseDevice;
impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: not true, I think. */
return 1;
}
AudioBootStrap IRIXAUDIO_bootstrap = {
"AL", "IRIX DMedia audio", IRIXAUDIO_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_irixaudio_h
#define _SDL_irixaudio_h
#include <dmedia/audio.h>
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
ALport audio_port; /* The handle for the audio device */
Uint8 *mixbuf; /* The app mixing buffer */
};
#endif /* _SDL_irixaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
Modified in Oct 2004 by Hannu Savolainen
hannu@opensound.com
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#include <stdio.h> /* For perror() */
#include <string.h> /* For strerror() */
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#if SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H
/* This is installed on some systems */
#include <soundcard.h>
#else
/* This is recommended by OSS */
#include <sys/soundcard.h>
#endif
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "../SDL_audiodev_c.h"
#include "SDL_dspaudio.h"
/* The tag name used by DSP audio */
#define DSP_DRIVER_NAME "dsp"
/* Open the audio device for playback, and don't block if busy */
#define OPEN_FLAGS_OUTPUT (O_WRONLY|O_NONBLOCK)
#define OPEN_FLAGS_INPUT (O_RDONLY|O_NONBLOCK)
static char **outputDevices = NULL;
static int outputDeviceCount = 0;
static char **inputDevices = NULL;
static int inputDeviceCount = 0;
static inline void
free_device_list(char ***devs, int *count)
{
SDL_FreeUnixAudioDevices(devs, count);
}
static inline void
build_device_list(int iscapture, char ***devs, int *count)
{
const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
free_device_list(devs, count);
SDL_EnumUnixAudioDevices(flags, 0, NULL, devs, count);
}
static inline void
build_device_lists(void)
{
build_device_list(0, &outputDevices, &outputDeviceCount);
build_device_list(1, &inputDevices, &inputDeviceCount);
}
static inline void
free_device_lists(void)
{
free_device_list(&outputDevices, &outputDeviceCount);
free_device_list(&inputDevices, &inputDeviceCount);
}
static void
DSP_Deinitialize(void)
{
free_device_lists();
}
static int
DSP_DetectDevices(int iscapture)
{
if (iscapture) {
build_device_list(1, &inputDevices, &inputDeviceCount);
return inputDeviceCount;
} else {
build_device_list(0, &outputDevices, &outputDeviceCount);
return outputDeviceCount;
}
return 0; /* shouldn't ever hit this. */
}
static const char *
DSP_GetDeviceName(int index, int iscapture)
{
if ((iscapture) && (index < inputDeviceCount)) {
return inputDevices[index];
} else if ((!iscapture) && (index < outputDeviceCount)) {
return outputDevices[index];
}
SDL_SetError("No such device");
return NULL;
}
static void
DSP_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->mixbuf != NULL) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if (this->hidden->audio_fd >= 0) {
close(this->hidden->audio_fd);
this->hidden->audio_fd = -1;
}
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static int
DSP_OpenDevice(_THIS, const char *devname, int iscapture)
{
const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
int format;
int value;
int frag_spec;
SDL_AudioFormat test_format;
/* We don't care what the devname is...we'll try to open anything. */
/* ...but default to first name in the list... */
if (devname == NULL) {
if (((iscapture) && (inputDeviceCount == 0)) ||
((!iscapture) && (outputDeviceCount == 0))) {
SDL_SetError("No such audio device");
return 0;
}
devname = ((iscapture) ? inputDevices[0] : outputDevices[0]);
}
/* Make sure fragment size stays a power of 2, or OSS fails. */
/* I don't know which of these are actually legal values, though... */
if (this->spec.channels > 8)
this->spec.channels = 8;
else if (this->spec.channels > 4)
this->spec.channels = 4;
else if (this->spec.channels > 2)
this->spec.channels = 2;
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Open the audio device */
this->hidden->audio_fd = open(devname, flags, 0);
if (this->hidden->audio_fd < 0) {
DSP_CloseDevice(this);
SDL_SetError("Couldn't open %s: %s", devname, strerror(errno));
return 0;
}
this->hidden->mixbuf = NULL;
/* Make the file descriptor use blocking writes with fcntl() */
{
long ctlflags;
ctlflags = fcntl(this->hidden->audio_fd, F_GETFL);
ctlflags &= ~O_NONBLOCK;
if (fcntl(this->hidden->audio_fd, F_SETFL, ctlflags) < 0) {
DSP_CloseDevice(this);
SDL_SetError("Couldn't set audio blocking mode");
return 0;
}
}
/* Get a list of supported hardware formats */
if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_GETFMTS, &value) < 0) {
perror("SNDCTL_DSP_GETFMTS");
DSP_CloseDevice(this);
SDL_SetError("Couldn't get audio format list");
return 0;
}
/* Try for a closest match on audio format */
format = 0;
for (test_format = SDL_FirstAudioFormat(this->spec.format);
!format && test_format;) {
#ifdef DEBUG_AUDIO
fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
#endif
switch (test_format) {
case AUDIO_U8:
if (value & AFMT_U8) {
format = AFMT_U8;
}
break;
case AUDIO_S16LSB:
if (value & AFMT_S16_LE) {
format = AFMT_S16_LE;
}
break;
case AUDIO_S16MSB:
if (value & AFMT_S16_BE) {
format = AFMT_S16_BE;
}
break;
#if 0
/*
* These formats are not used by any real life systems so they are not
* needed here.
*/
case AUDIO_S8:
if (value & AFMT_S8) {
format = AFMT_S8;
}
break;
case AUDIO_U16LSB:
if (value & AFMT_U16_LE) {
format = AFMT_U16_LE;
}
break;
case AUDIO_U16MSB:
if (value & AFMT_U16_BE) {
format = AFMT_U16_BE;
}
break;
#endif
default:
format = 0;
break;
}
if (!format) {
test_format = SDL_NextAudioFormat();
}
}
if (format == 0) {
DSP_CloseDevice(this);
SDL_SetError("Couldn't find any hardware audio formats");
return 0;
}
this->spec.format = test_format;
/* Set the audio format */
value = format;
if ((ioctl(this->hidden->audio_fd, SNDCTL_DSP_SETFMT, &value) < 0) ||
(value != format)) {
perror("SNDCTL_DSP_SETFMT");
DSP_CloseDevice(this);
SDL_SetError("Couldn't set audio format");
return 0;
}
/* Set the number of channels of output */
value = this->spec.channels;
if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_CHANNELS, &value) < 0) {
perror("SNDCTL_DSP_CHANNELS");
DSP_CloseDevice(this);
SDL_SetError("Cannot set the number of channels");
return 0;
}
this->spec.channels = value;
/* Set the DSP frequency */
value = this->spec.freq;
if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_SPEED, &value) < 0) {
perror("SNDCTL_DSP_SPEED");
DSP_CloseDevice(this);
SDL_SetError("Couldn't set audio frequency");
return 0;
}
this->spec.freq = value;
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
/* Determine the power of two of the fragment size */
for (frag_spec = 0; (0x01U << frag_spec) < this->spec.size; ++frag_spec);
if ((0x01U << frag_spec) != this->spec.size) {
DSP_CloseDevice(this);
SDL_SetError("Fragment size must be a power of two");
return 0;
}
frag_spec |= 0x00020000; /* two fragments, for low latency */
/* Set the audio buffering parameters */
#ifdef DEBUG_AUDIO
fprintf(stderr, "Requesting %d fragments of size %d\n",
(frag_spec >> 16), 1 << (frag_spec & 0xFFFF));
#endif
if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_SETFRAGMENT, &frag_spec) < 0) {
perror("SNDCTL_DSP_SETFRAGMENT");
}
#ifdef DEBUG_AUDIO
{
audio_buf_info info;
ioctl(this->hidden->audio_fd, SNDCTL_DSP_GETOSPACE, &info);
fprintf(stderr, "fragments = %d\n", info.fragments);
fprintf(stderr, "fragstotal = %d\n", info.fragstotal);
fprintf(stderr, "fragsize = %d\n", info.fragsize);
fprintf(stderr, "bytes = %d\n", info.bytes);
}
#endif
/* Allocate mixing buffer */
this->hidden->mixlen = this->spec.size;
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if (this->hidden->mixbuf == NULL) {
DSP_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
/* We're ready to rock and roll. :-) */
return 1;
}
static void
DSP_PlayDevice(_THIS)
{
const Uint8 *mixbuf = this->hidden->mixbuf;
const int mixlen = this->hidden->mixlen;
if (write(this->hidden->audio_fd, mixbuf, mixlen) == -1) {
perror("Audio write");
this->enabled = 0;
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", mixlen);
#endif
}
static Uint8 *
DSP_GetDeviceBuf(_THIS)
{
return (this->hidden->mixbuf);
}
static int
DSP_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->DetectDevices = DSP_DetectDevices;
impl->GetDeviceName = DSP_GetDeviceName;
impl->OpenDevice = DSP_OpenDevice;
impl->PlayDevice = DSP_PlayDevice;
impl->GetDeviceBuf = DSP_GetDeviceBuf;
impl->CloseDevice = DSP_CloseDevice;
impl->Deinitialize = DSP_Deinitialize;
build_device_lists();
return (outputDeviceCount > 0) ? 2 : 1;
}
AudioBootStrap DSP_bootstrap = {
DSP_DRIVER_NAME, "OSS /dev/dsp standard audio", DSP_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_dspaudio_h
#define _SDL_dspaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* The file descriptor for the audio device */
int audio_fd;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
};
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
#endif /* _SDL_dspaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
This file written by Ryan C. Gordon (icculus@icculus.org)
*/
#include "SDL_config.h"
/* Output audio to nowhere... */
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "SDL_dummyaudio.h"
static int
DUMMYAUD_OpenDevice(_THIS, const char *devname, int iscapture)
{
return 1; /* always succeeds. */
}
static int
DUMMYAUD_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->OpenDevice = DUMMYAUD_OpenDevice;
impl->OnlyHasDefaultOutputDevice = 1;
return 1;
}
AudioBootStrap DUMMYAUD_bootstrap = {
"dummy", "SDL dummy audio driver", DUMMYAUD_Init, 1
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_dummyaudio_h
#define _SDL_dummyaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* The file descriptor for the audio device */
Uint8 *mixbuf;
Uint32 mixlen;
Uint32 write_delay;
Uint32 initial_calls;
};
#endif /* _SDL_dummyaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to an ESD network stream mixing buffer */
#include <sys/types.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <esd.h>
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "SDL_esdaudio.h"
#ifdef SDL_AUDIO_DRIVER_ESD_DYNAMIC
#include "SDL_name.h"
#include "SDL_loadso.h"
#else
#define SDL_NAME(X) X
#endif
/* The tag name used by ESD audio */
#define ESD_DRIVER_NAME "esd"
#ifdef SDL_AUDIO_DRIVER_ESD_DYNAMIC
static const char *esd_library = SDL_AUDIO_DRIVER_ESD_DYNAMIC;
static void *esd_handle = NULL;
static int (*SDL_NAME(esd_open_sound)) (const char *host);
static int (*SDL_NAME(esd_close)) (int esd);
static int (*SDL_NAME(esd_play_stream)) (esd_format_t format, int rate,
const char *host, const char *name);
#define SDL_ESD_SYM(x) { #x, (void **) (char *) &SDL_NAME(x) }
static struct
{
const char *name;
void **func;
} const esd_functions[] = {
SDL_ESD_SYM(esd_open_sound),
SDL_ESD_SYM(esd_close), SDL_ESD_SYM(esd_play_stream),
};
#undef SDL_ESD_SYM
static void
UnloadESDLibrary()
{
if (esd_handle != NULL) {
SDL_UnloadObject(esd_handle);
esd_handle = NULL;
}
}
static int
LoadESDLibrary(void)
{
int i, retval = -1;
if (esd_handle == NULL) {
esd_handle = SDL_LoadObject(esd_library);
if (esd_handle) {
retval = 0;
for (i = 0; i < SDL_arraysize(esd_functions); ++i) {
*esd_functions[i].func =
SDL_LoadFunction(esd_handle, esd_functions[i].name);
if (!*esd_functions[i].func) {
retval = -1;
UnloadESDLibrary();
break;
}
}
}
}
return retval;
}
#else
static void
UnloadESDLibrary()
{
return;
}
static int
LoadESDLibrary(void)
{
return 0;
}
#endif /* SDL_AUDIO_DRIVER_ESD_DYNAMIC */
/* This function waits until it is possible to write a full sound buffer */
static void
ESD_WaitDevice(_THIS)
{
Sint32 ticks;
/* Check to see if the thread-parent process is still alive */
{
static int cnt = 0;
/* Note that this only works with thread implementations
that use a different process id for each thread.
*/
/* Check every 10 loops */
if (this->hidden->parent && (((++cnt) % 10) == 0)) {
if (kill(this->hidden->parent, 0) < 0 && errno == ESRCH) {
this->enabled = 0;
}
}
}
/* Use timer for general audio synchronization */
ticks =
((Sint32) (this->hidden->next_frame - SDL_GetTicks())) - FUDGE_TICKS;
if (ticks > 0) {
SDL_Delay(ticks);
}
}
static void
ESD_PlayDevice(_THIS)
{
int written = 0;
/* Write the audio data, checking for EAGAIN on broken audio drivers */
do {
written = write(this->hidden->audio_fd,
this->hidden->mixbuf, this->hidden->mixlen);
if ((written < 0) && ((errno == 0) || (errno == EAGAIN))) {
SDL_Delay(1); /* Let a little CPU time go by */
}
} while ((written < 0) &&
((errno == 0) || (errno == EAGAIN) || (errno == EINTR)));
/* Set the next write frame */
this->hidden->next_frame += this->hidden->frame_ticks;
/* If we couldn't write, assume fatal error for now */
if (written < 0) {
this->enabled = 0;
}
}
static Uint8 *
ESD_GetDeviceBuf(_THIS)
{
return (this->hidden->mixbuf);
}
static void
ESD_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->mixbuf != NULL) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if (this->hidden->audio_fd >= 0) {
SDL_NAME(esd_close) (this->hidden->audio_fd);
this->hidden->audio_fd = -1;
}
SDL_free(this->hidden);
this->hidden = NULL;
}
}
/* Try to get the name of the program */
static char *
get_progname(void)
{
char *progname = NULL;
#ifdef __LINUX__
FILE *fp;
static char temp[BUFSIZ];
SDL_snprintf(temp, SDL_arraysize(temp), "/proc/%d/cmdline", getpid());
fp = fopen(temp, "r");
if (fp != NULL) {
if (fgets(temp, sizeof(temp) - 1, fp)) {
progname = SDL_strrchr(temp, '/');
if (progname == NULL) {
progname = temp;
} else {
progname = progname + 1;
}
}
fclose(fp);
}
#endif
return (progname);
}
static int
ESD_OpenDevice(_THIS, const char *devname, int iscapture)
{
esd_format_t format = (ESD_STREAM | ESD_PLAY);
SDL_AudioFormat test_format = 0;
int found = 0;
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
this->hidden->audio_fd = -1;
/* Convert audio spec to the ESD audio format */
/* Try for a closest match on audio format */
for (test_format = SDL_FirstAudioFormat(this->spec.format);
!found && test_format; test_format = SDL_NextAudioFormat()) {
#ifdef DEBUG_AUDIO
fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
#endif
found = 1;
switch (test_format) {
case AUDIO_U8:
format |= ESD_BITS8;
break;
case AUDIO_S16SYS:
format |= ESD_BITS16;
break;
default:
found = 0;
break;
}
}
if (!found) {
ESD_CloseDevice(this);
SDL_SetError("Couldn't find any hardware audio formats");
return 0;
}
if (this->spec.channels == 1) {
format |= ESD_MONO;
} else {
format |= ESD_STEREO;
}
#if 0
this->spec.samples = ESD_BUF_SIZE; /* Darn, no way to change this yet */
#endif
/* Open a connection to the ESD audio server */
this->hidden->audio_fd =
SDL_NAME(esd_play_stream) (format, this->spec.freq, NULL,
get_progname());
if (this->hidden->audio_fd < 0) {
ESD_CloseDevice(this);
SDL_SetError("Couldn't open ESD connection");
return 0;
}
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
this->hidden->frame_ticks =
(float) (this->spec.samples * 1000) / this->spec.freq;
this->hidden->next_frame = SDL_GetTicks() + this->hidden->frame_ticks;
/* Allocate mixing buffer */
this->hidden->mixlen = this->spec.size;
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if (this->hidden->mixbuf == NULL) {
ESD_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
/* Get the parent process id (we're the parent of the audio thread) */
this->hidden->parent = getpid();
/* We're ready to rock and roll. :-) */
return 1;
}
static void
ESD_Deinitialize(void)
{
UnloadESDLibrary();
}
static int
ESD_Init(SDL_AudioDriverImpl * impl)
{
if (LoadESDLibrary() < 0) {
return 0;
} else {
int connection = 0;
/* Don't start ESD if it's not running */
if (SDL_getenv("ESD_NO_SPAWN") == NULL) {
SDL_putenv("ESD_NO_SPAWN=1");
}
connection = SDL_NAME(esd_open_sound) (NULL);
if (connection < 0) {
UnloadESDLibrary();
SDL_SetError("ESD: esd_open_sound failed (no audio server?)");
return 0;
}
SDL_NAME(esd_close) (connection);
}
/* Set the function pointers */
impl->OpenDevice = ESD_OpenDevice;
impl->PlayDevice = ESD_PlayDevice;
impl->WaitDevice = ESD_WaitDevice;
impl->GetDeviceBuf = ESD_GetDeviceBuf;
impl->CloseDevice = ESD_CloseDevice;
impl->Deinitialize = ESD_Deinitialize;
impl->OnlyHasDefaultOutputDevice = 1;
return 2; /* return 2 (definitely have a "device"). */
}
AudioBootStrap ESD_bootstrap = {
ESD_DRIVER_NAME, "Enlightened Sound Daemon", ESD_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_esdaudio_h
#define _SDL_esdaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* The file descriptor for the audio device */
int audio_fd;
/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
/* Support for audio timing using a timer */
float frame_ticks;
float next_frame;
};
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
#endif /* _SDL_esdaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#include <unistd.h>
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "SDL_fsaudio.h"
#include <fusionsound/fusionsound_version.h>
//#define SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC "libfusionsound.so"
#ifdef SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC
#include "SDL_name.h"
#include "SDL_loadso.h"
#else
#define SDL_NAME(X) X
#endif
#if (FUSIONSOUND_MAJOR_VERSION == 1) && (FUSIONSOUND_MINOR_VERSION < 1)
typedef DFBResult DirectResult;
#endif
/* The tag name used by fusionsoundc audio */
#define SDL_FS_DRIVER_NAME "fusionsound"
/* Buffers to use - more than 2 gives a lot of latency */
#define FUSION_BUFFERS (2)
#ifdef SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC
static const char *fs_library = SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC;
static void *fs_handle = NULL;
static DirectResult (*SDL_NAME(FusionSoundInit)) (int *argc, char *(*argv[]));
static DirectResult (*SDL_NAME(FusionSoundCreate)) (IFusionSound **
ret_interface);
#define SDL_FS_SYM(x) { #x, (void **) (char *) &SDL_NAME(x) }
static struct
{
const char *name;
void **func;
} fs_functions[] = {
/* *INDENT-OFF* */
SDL_FS_SYM(FusionSoundInit),
SDL_FS_SYM(FusionSoundCreate),
/* *INDENT-ON* */
};
#undef SDL_FS_SYM
static void
UnloadFusionSoundLibrary()
{
if (fs_handle != NULL) {
SDL_UnloadObject(fs_handle);
fs_handle = NULL;
}
}
static int
LoadFusionSoundLibrary(void)
{
int i, retval = -1;
if (fs_handle == NULL) {
fs_handle = SDL_LoadObject(fs_library);
if (fs_handle != NULL) {
retval = 0;
for (i = 0; i < SDL_arraysize(fs_functions); ++i) {
*fs_functions[i].func =
SDL_LoadFunction(fs_handle, fs_functions[i].name);
if (!*fs_functions[i].func) {
retval = -1;
UnloadFusionSoundLibrary();
break;
}
}
}
}
return retval;
}
#else
static void
UnloadFusionSoundLibrary()
{
return;
}
static int
LoadFusionSoundLibrary(void)
{
return 0;
}
#endif /* SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC */
/* This function waits until it is possible to write a full sound buffer */
static void
SDL_FS_WaitDevice(_THIS)
{
this->hidden->stream->Wait(this->hidden->stream,
this->hidden->mixsamples);
}
static void
SDL_FS_PlayDevice(_THIS)
{
DirectResult ret;
ret = this->hidden->stream->Write(this->hidden->stream,
this->hidden->mixbuf,
this->hidden->mixsamples);
/* If we couldn't write, assume fatal error for now */
if (ret) {
this->enabled = 0;
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", this->hidden->mixlen);
#endif
}
static void
SDL_FS_WaitDone(_THIS)
{
this->hidden->stream->Wait(this->hidden->stream,
this->hidden->mixsamples * FUSION_BUFFERS);
}
static Uint8 *
SDL_FS_GetDeviceBuf(_THIS)
{
return (this->hidden->mixbuf);
}
static void
SDL_FS_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->mixbuf != NULL) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if (this->hidden->stream) {
this->hidden->stream->Release(this->hidden->stream);
this->hidden->stream = NULL;
}
if (this->hidden->fs) {
this->hidden->fs->Release(this->hidden->fs);
this->hidden->fs = NULL;
}
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static int
SDL_FS_OpenDevice(_THIS, const char *devname, int iscapture)
{
int bytes;
SDL_AudioFormat test_format = 0, format = 0;
FSSampleFormat fs_format;
FSStreamDescription desc;
DirectResult ret;
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Try for a closest match on audio format */
for (test_format = SDL_FirstAudioFormat(this->spec.format);
!format && test_format;) {
#ifdef DEBUG_AUDIO
fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
#endif
switch (test_format) {
case AUDIO_U8:
fs_format = FSSF_U8;
bytes = 1;
format = 1;
break;
case AUDIO_S16SYS:
fs_format = FSSF_S16;
bytes = 2;
format = 1;
break;
case AUDIO_S32SYS:
fs_format = FSSF_S32;
bytes = 4;
format = 1;
break;
case AUDIO_F32SYS:
fs_format = FSSF_FLOAT;
bytes = 4;
format = 1;
break;
default:
format = 0;
break;
}
if (!format) {
test_format = SDL_NextAudioFormat();
}
}
if (format == 0) {
SDL_FS_CloseDevice(this);
SDL_SetError("Couldn't find any hardware audio formats");
return 0;
}
this->spec.format = test_format;
/* Retrieve the main sound interface. */
ret = SDL_NAME(FusionSoundCreate) (&this->hidden->fs);
if (ret) {
SDL_FS_CloseDevice(this);
SDL_SetError("Unable to initialize FusionSound: %d", ret);
return 0;
}
this->hidden->mixsamples = this->spec.size / bytes / this->spec.channels;
/* Fill stream description. */
desc.flags = FSSDF_SAMPLERATE | FSSDF_BUFFERSIZE |
FSSDF_CHANNELS | FSSDF_SAMPLEFORMAT | FSSDF_PREBUFFER;
desc.samplerate = this->spec.freq;
desc.buffersize = this->spec.size * FUSION_BUFFERS;
desc.channels = this->spec.channels;
desc.prebuffer = 10;
desc.sampleformat = fs_format;
ret =
this->hidden->fs->CreateStream(this->hidden->fs, &desc,
&this->hidden->stream);
if (ret) {
SDL_FS_CloseDevice(this);
SDL_SetError("Unable to create FusionSoundStream: %d", ret);
return 0;
}
/* See what we got */
desc.flags = FSSDF_SAMPLERATE | FSSDF_BUFFERSIZE |
FSSDF_CHANNELS | FSSDF_SAMPLEFORMAT;
ret = this->hidden->stream->GetDescription(this->hidden->stream, &desc);
this->spec.freq = desc.samplerate;
this->spec.size =
desc.buffersize / FUSION_BUFFERS * bytes * desc.channels;
this->spec.channels = desc.channels;
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
/* Allocate mixing buffer */
this->hidden->mixlen = this->spec.size;
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if (this->hidden->mixbuf == NULL) {
SDL_FS_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
/* We're ready to rock and roll. :-) */
return 1;
}
static void
SDL_FS_Deinitialize(void)
{
UnloadFusionSoundLibrary();
}
static int
SDL_FS_Init(SDL_AudioDriverImpl * impl)
{
if (LoadFusionSoundLibrary() < 0) {
return 0;
} else {
DirectResult ret;
ret = SDL_NAME(FusionSoundInit) (NULL, NULL);
if (ret) {
UnloadFusionSoundLibrary();
SDL_SetError
("FusionSound: SDL_FS_init failed (FusionSoundInit: %d)",
ret);
return 0;
}
}
/* Set the function pointers */
impl->OpenDevice = SDL_FS_OpenDevice;
impl->PlayDevice = SDL_FS_PlayDevice;
impl->WaitDevice = SDL_FS_WaitDevice;
impl->GetDeviceBuf = SDL_FS_GetDeviceBuf;
impl->CloseDevice = SDL_FS_CloseDevice;
impl->WaitDone = SDL_FS_WaitDone;
impl->Deinitialize = SDL_FS_Deinitialize;
impl->OnlyHasDefaultOutputDevice = 1;
return 1;
}
AudioBootStrap FUSIONSOUND_bootstrap = {
SDL_FS_DRIVER_NAME, "FusionSound", SDL_FS_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_fsaudio_h
#define _SDL_fsaudio_h
#include <fusionsound/fusionsound.h>
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* Interface */
IFusionSound *fs;
/* The stream interface for the audio device */
IFusionSoundStream *stream;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
int mixsamples;
};
#endif /* _SDL_fsaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#include <AudioUnit/AudioUnit.h>
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "../SDL_sysaudio.h"
#include "SDL_coreaudio_iphone.h"
#define DEBUG_COREAUDIO 0
static void
COREAUDIO_Deinitialize(void)
{
}
/* The CoreAudio callback */
static OSStatus
outputCallback(void *inRefCon,
AudioUnitRenderActionFlags * ioActionFlags,
const AudioTimeStamp * inTimeStamp,
UInt32 inBusNumber, UInt32 inNumberFrames,
AudioBufferList * ioDataList)
{
SDL_AudioDevice *this = (SDL_AudioDevice *) inRefCon;
AudioBuffer *ioData = &ioDataList->mBuffers[0];
UInt32 remaining, len;
void *ptr;
/* Is there ever more than one buffer, and what do you do with it? */
if (ioDataList->mNumberBuffers != 1) {
return noErr;
}
/* Only do anything if audio is enabled and not paused */
if (!this->enabled || this->paused) {
SDL_memset(ioData->mData, this->spec.silence, ioData->mDataByteSize);
return 0;
}
/* No SDL conversion should be needed here, ever, since we accept
any input format in OpenAudio, and leave the conversion to CoreAudio.
*/
/*
assert(!this->convert.needed);
assert(this->spec.channels == ioData->mNumberChannels);
*/
remaining = ioData->mDataByteSize;
ptr = ioData->mData;
while (remaining > 0) {
if (this->hidden->bufferOffset >= this->hidden->bufferSize) {
/* Generate the data */
SDL_memset(this->hidden->buffer, this->spec.silence,
this->hidden->bufferSize);
SDL_mutexP(this->mixer_lock);
(*this->spec.callback) (this->spec.userdata, this->hidden->buffer,
this->hidden->bufferSize);
SDL_mutexV(this->mixer_lock);
this->hidden->bufferOffset = 0;
}
len = this->hidden->bufferSize - this->hidden->bufferOffset;
if (len > remaining)
len = remaining;
SDL_memcpy(ptr,
(char *) this->hidden->buffer + this->hidden->bufferOffset,
len);
ptr = (char *) ptr + len;
remaining -= len;
this->hidden->bufferOffset += len;
}
return 0;
}
static OSStatus
inputCallback(void *inRefCon,
AudioUnitRenderActionFlags * ioActionFlags,
const AudioTimeStamp * inTimeStamp,
UInt32 inBusNumber, UInt32 inNumberFrames,
AudioBufferList * ioData)
{
//err = AudioUnitRender(afr->fAudioUnit, ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, afr->fAudioBuffer);
// !!! FIXME: write me!
return noErr;
}
static void
COREAUDIO_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->audioUnitOpened) {
OSStatus result = noErr;
AURenderCallbackStruct callback;
const AudioUnitElement output_bus = 0;
const AudioUnitElement input_bus = 1;
const int iscapture = this->iscapture;
const AudioUnitElement bus =
((iscapture) ? input_bus : output_bus);
const AudioUnitScope scope =
((iscapture) ? kAudioUnitScope_Output :
kAudioUnitScope_Input);
/* stop processing the audio unit */
result = AudioOutputUnitStop(this->hidden->audioUnit);
/* Remove the input callback */
SDL_memset(&callback, '\0', sizeof(AURenderCallbackStruct));
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioUnitProperty_SetRenderCallback,
scope, bus, &callback,
sizeof(callback));
//CloseComponent(this->hidden->audioUnit);
this->hidden->audioUnitOpened = 0;
}
SDL_free(this->hidden->buffer);
SDL_free(this->hidden);
this->hidden = NULL;
}
}
#define CHECK_RESULT(msg) \
if (result != noErr) { \
COREAUDIO_CloseDevice(this); \
SDL_SetError("CoreAudio error (%s): %d", msg, result); \
return 0; \
}
static int
prepare_audiounit(_THIS, const char *devname, int iscapture,
const AudioStreamBasicDescription * strdesc)
{
OSStatus result = noErr;
AURenderCallbackStruct callback;
AudioComponentDescription desc;
AudioComponent comp = NULL;
UInt32 enableIO = 0;
const AudioUnitElement output_bus = 0;
const AudioUnitElement input_bus = 1;
const AudioUnitElement bus = ((iscapture) ? input_bus : output_bus);
const AudioUnitScope scope = ((iscapture) ? kAudioUnitScope_Output :
kAudioUnitScope_Input);
SDL_memset(&desc, '\0', sizeof(AudioComponentDescription));
desc.componentType = kAudioUnitType_Output;
desc.componentSubType = kAudioUnitSubType_RemoteIO;
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
comp = AudioComponentFindNext(NULL, &desc);
if (comp == NULL) {
SDL_SetError("Couldn't find requested CoreAudio component");
return 0;
}
/* Open & initialize the audio unit */
/*
AudioComponentInstanceNew only available on iPhone OS 2.0 and Mac OS X 10.6
We can't use OpenAComponent on iPhone because it is not present
*/
result = AudioComponentInstanceNew(comp, &this->hidden->audioUnit);
CHECK_RESULT("AudioComponentInstanceNew");
this->hidden->audioUnitOpened = 1;
// !!! FIXME: this is wrong?
enableIO = ((iscapture) ? 1 : 0);
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Input, input_bus,
&enableIO, sizeof(enableIO));
CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_EnableIO input)");
// !!! FIXME: this is wrong?
enableIO = ((iscapture) ? 0 : 1);
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Output, output_bus,
&enableIO, sizeof(enableIO));
CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_EnableIO output)");
/*result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global, 0,
&this->hidden->deviceID,
sizeof(AudioDeviceID));
CHECK_RESULT("AudioUnitSetProperty (kAudioOutputUnitProperty_CurrentDevice)"); */
/* Set the data format of the audio unit. */
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioUnitProperty_StreamFormat,
scope, bus, strdesc, sizeof(*strdesc));
CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_StreamFormat)");
/* Set the audio callback */
SDL_memset(&callback, '\0', sizeof(AURenderCallbackStruct));
callback.inputProc = ((iscapture) ? inputCallback : outputCallback);
callback.inputProcRefCon = this;
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioUnitProperty_SetRenderCallback,
scope, bus, &callback, sizeof(callback));
CHECK_RESULT
("AudioUnitSetProperty (kAudioUnitProperty_SetInputCallback)");
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
/* Allocate a sample buffer */
this->hidden->bufferOffset = this->hidden->bufferSize = this->spec.size;
this->hidden->buffer = SDL_malloc(this->hidden->bufferSize);
result = AudioUnitInitialize(this->hidden->audioUnit);
CHECK_RESULT("AudioUnitInitialize");
/* Finally, start processing of the audio unit */
result = AudioOutputUnitStart(this->hidden->audioUnit);
CHECK_RESULT("AudioOutputUnitStart");
/* We're running! */
return 1;
}
static int
COREAUDIO_OpenDevice(_THIS, const char *devname, int iscapture)
{
AudioStreamBasicDescription strdesc;
SDL_AudioFormat test_format = SDL_FirstAudioFormat(this->spec.format);
int valid_datatype = 0;
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return (0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Setup a AudioStreamBasicDescription with the requested format */
SDL_memset(&strdesc, '\0', sizeof(AudioStreamBasicDescription));
strdesc.mFormatID = kAudioFormatLinearPCM;
strdesc.mFormatFlags = kLinearPCMFormatFlagIsPacked;
strdesc.mChannelsPerFrame = this->spec.channels;
strdesc.mSampleRate = this->spec.freq;
strdesc.mFramesPerPacket = 1;
while ((!valid_datatype) && (test_format)) {
this->spec.format = test_format;
/* Just a list of valid SDL formats, so people don't pass junk here. */
switch (test_format) {
case AUDIO_U8:
case AUDIO_S8:
case AUDIO_U16LSB:
case AUDIO_S16LSB:
case AUDIO_U16MSB:
case AUDIO_S16MSB:
case AUDIO_S32LSB:
case AUDIO_S32MSB:
case AUDIO_F32LSB:
case AUDIO_F32MSB:
valid_datatype = 1;
strdesc.mBitsPerChannel = SDL_AUDIO_BITSIZE(this->spec.format);
if (SDL_AUDIO_ISBIGENDIAN(this->spec.format))
strdesc.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian;
if (SDL_AUDIO_ISFLOAT(this->spec.format))
strdesc.mFormatFlags |= kLinearPCMFormatFlagIsFloat;
else if (SDL_AUDIO_ISSIGNED(this->spec.format))
strdesc.mFormatFlags |= kLinearPCMFormatFlagIsSignedInteger;
break;
}
}
if (!valid_datatype) { /* shouldn't happen, but just in case... */
COREAUDIO_CloseDevice(this);
SDL_SetError("Unsupported audio format");
return 0;
}
strdesc.mBytesPerFrame =
strdesc.mBitsPerChannel * strdesc.mChannelsPerFrame / 8;
strdesc.mBytesPerPacket =
strdesc.mBytesPerFrame * strdesc.mFramesPerPacket;
if (!prepare_audiounit(this, devname, iscapture, &strdesc)) {
COREAUDIO_CloseDevice(this);
return 0; /* prepare_audiounit() will call SDL_SetError()... */
}
return 1; /* good to go. */
}
static int
COREAUDIO_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->OpenDevice = COREAUDIO_OpenDevice;
impl->CloseDevice = COREAUDIO_CloseDevice;
impl->Deinitialize = COREAUDIO_Deinitialize;
impl->ProvidesOwnCallbackThread = 1;
/* added for iPhone */
impl->OnlyHasDefaultInputDevice = 1;
impl->OnlyHasDefaultOutputDevice = 1;
impl->HasCaptureSupport = 0; /* still needs to be written */
return 2; /* defitely have an audio device. */
}
AudioBootStrap COREAUDIOIPHONE_bootstrap = {
"coreaudio-iphoneos", "SDL CoreAudio (iPhone OS) audio driver",
COREAUDIO_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_coreaudio_h
#define _SDL_coreaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
AudioUnit audioUnit;
int audioUnitOpened;
void *buffer;
UInt32 bufferOffset;
UInt32 bufferSize;
// AudioDeviceID deviceID;
};
#endif /* _SDL_coreaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#include <CoreAudio/CoreAudio.h>
#include <CoreServices/CoreServices.h>
#include <AudioUnit/AudioUnit.h>
#if MAC_OS_X_VERSION_MAX_ALLOWED == 1050
#include <AudioUnit/AUNTComponent.h>
#endif
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "../SDL_sysaudio.h"
#include "SDL_coreaudio.h"
#define DEBUG_COREAUDIO 0
typedef struct COREAUDIO_DeviceList
{
AudioDeviceID id;
const char *name;
} COREAUDIO_DeviceList;
static COREAUDIO_DeviceList *inputDevices = NULL;
static int inputDeviceCount = 0;
static COREAUDIO_DeviceList *outputDevices = NULL;
static int outputDeviceCount = 0;
static void
free_device_list(COREAUDIO_DeviceList ** devices, int *devCount)
{
if (*devices) {
int i = *devCount;
while (i--)
SDL_free((void *) (*devices)[i].name);
SDL_free(*devices);
*devices = NULL;
}
*devCount = 0;
}
static void
build_device_list(int iscapture, COREAUDIO_DeviceList ** devices,
int *devCount)
{
Boolean outWritable = 0;
OSStatus result = noErr;
UInt32 size = 0;
AudioDeviceID *devs = NULL;
UInt32 i = 0;
UInt32 max = 0;
free_device_list(devices, devCount);
result = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices,
&size, &outWritable);
if (result != kAudioHardwareNoError)
return;
devs = (AudioDeviceID *) alloca(size);
if (devs == NULL)
return;
max = size / sizeof(AudioDeviceID);
*devices = (COREAUDIO_DeviceList *) SDL_malloc(max * sizeof(**devices));
if (*devices == NULL)
return;
result = AudioHardwareGetProperty(kAudioHardwarePropertyDevices,
&size, devs);
if (result != kAudioHardwareNoError)
return;
for (i = 0; i < max; i++) {
CFStringRef cfstr = NULL;
char *ptr = NULL;
AudioDeviceID dev = devs[i];
AudioBufferList *buflist = NULL;
int usable = 0;
CFIndex len = 0;
result = AudioDeviceGetPropertyInfo(dev, 0, iscapture,
kAudioDevicePropertyStreamConfiguration,
&size, &outWritable);
if (result != noErr)
continue;
buflist = (AudioBufferList *) SDL_malloc(size);
if (buflist == NULL)
continue;
result = AudioDeviceGetProperty(dev, 0, iscapture,
kAudioDevicePropertyStreamConfiguration,
&size, buflist);
if (result == noErr) {
UInt32 j;
for (j = 0; j < buflist->mNumberBuffers; j++) {
if (buflist->mBuffers[j].mNumberChannels > 0) {
usable = 1;
break;
}
}
}
SDL_free(buflist);
if (!usable)
continue;
size = sizeof(CFStringRef);
result = AudioDeviceGetProperty(dev, 0, iscapture,
kAudioDevicePropertyDeviceNameCFString,
&size, &cfstr);
if (result != kAudioHardwareNoError)
continue;
len = CFStringGetMaximumSizeForEncoding(CFStringGetLength(cfstr),
kCFStringEncodingUTF8);
ptr = (char *) SDL_malloc(len + 1);
usable = ((ptr != NULL) &&
(CFStringGetCString
(cfstr, ptr, len + 1, kCFStringEncodingUTF8)));
CFRelease(cfstr);
if (usable) {
len = strlen(ptr);
/* Some devices have whitespace at the end...trim it. */
while ((len > 0) && (ptr[len - 1] == ' ')) {
len--;
}
usable = (len > 0);
}
if (!usable) {
SDL_free(ptr);
} else {
ptr[len] = '\0';
#if DEBUG_COREAUDIO
printf("COREAUDIO: Found %s device #%d: '%s' (devid %d)\n",
((iscapture) ? "capture" : "output"),
(int) *devCount, ptr, (int) dev);
#endif
(*devices)[*devCount].id = dev;
(*devices)[*devCount].name = ptr;
(*devCount)++;
}
}
}
static inline void
build_device_lists(void)
{
build_device_list(0, &outputDevices, &outputDeviceCount);
build_device_list(1, &inputDevices, &inputDeviceCount);
}
static inline void
free_device_lists(void)
{
free_device_list(&outputDevices, &outputDeviceCount);
free_device_list(&inputDevices, &inputDeviceCount);
}
static int
find_device_id(const char *devname, int iscapture, AudioDeviceID * id)
{
int i = ((iscapture) ? inputDeviceCount : outputDeviceCount);
COREAUDIO_DeviceList *devs = ((iscapture) ? inputDevices : outputDevices);
while (i--) {
if (SDL_strcmp(devname, devs->name) == 0) {
*id = devs->id;
return 1;
}
devs++;
}
return 0;
}
static int
COREAUDIO_DetectDevices(int iscapture)
{
if (iscapture) {
build_device_list(1, &inputDevices, &inputDeviceCount);
return inputDeviceCount;
} else {
build_device_list(0, &outputDevices, &outputDeviceCount);
return outputDeviceCount;
}
return 0; /* shouldn't ever hit this. */
}
static const char *
COREAUDIO_GetDeviceName(int index, int iscapture)
{
if ((iscapture) && (index < inputDeviceCount)) {
return inputDevices[index].name;
} else if ((!iscapture) && (index < outputDeviceCount)) {
return outputDevices[index].name;
}
SDL_SetError("No such device");
return NULL;
}
static void
COREAUDIO_Deinitialize(void)
{
free_device_lists();
}
/* The CoreAudio callback */
static OSStatus
outputCallback(void *inRefCon,
AudioUnitRenderActionFlags * ioActionFlags,
const AudioTimeStamp * inTimeStamp,
UInt32 inBusNumber, UInt32 inNumberFrames,
AudioBufferList * ioDataList)
{
SDL_AudioDevice *this = (SDL_AudioDevice *) inRefCon;
AudioBuffer *ioData = &ioDataList->mBuffers[0];
UInt32 remaining, len;
void *ptr;
/* Is there ever more than one buffer, and what do you do with it? */
if (ioDataList->mNumberBuffers != 1) {
return noErr;
}
/* Only do anything if audio is enabled and not paused */
if (!this->enabled || this->paused) {
SDL_memset(ioData->mData, this->spec.silence, ioData->mDataByteSize);
return 0;
}
/* No SDL conversion should be needed here, ever, since we accept
any input format in OpenAudio, and leave the conversion to CoreAudio.
*/
/*
assert(!this->convert.needed);
assert(this->spec.channels == ioData->mNumberChannels);
*/
remaining = ioData->mDataByteSize;
ptr = ioData->mData;
while (remaining > 0) {
if (this->hidden->bufferOffset >= this->hidden->bufferSize) {
/* Generate the data */
SDL_memset(this->hidden->buffer, this->spec.silence,
this->hidden->bufferSize);
SDL_mutexP(this->mixer_lock);
(*this->spec.callback) (this->spec.userdata, this->hidden->buffer,
this->hidden->bufferSize);
SDL_mutexV(this->mixer_lock);
this->hidden->bufferOffset = 0;
}
len = this->hidden->bufferSize - this->hidden->bufferOffset;
if (len > remaining)
len = remaining;
SDL_memcpy(ptr,
(char *) this->hidden->buffer + this->hidden->bufferOffset,
len);
ptr = (char *) ptr + len;
remaining -= len;
this->hidden->bufferOffset += len;
}
return 0;
}
static OSStatus
inputCallback(void *inRefCon,
AudioUnitRenderActionFlags * ioActionFlags,
const AudioTimeStamp * inTimeStamp,
UInt32 inBusNumber, UInt32 inNumberFrames,
AudioBufferList * ioData)
{
//err = AudioUnitRender(afr->fAudioUnit, ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, afr->fAudioBuffer);
// !!! FIXME: write me!
return noErr;
}
static void
COREAUDIO_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->audioUnitOpened) {
OSStatus result = noErr;
AURenderCallbackStruct callback;
const AudioUnitElement output_bus = 0;
const AudioUnitElement input_bus = 1;
const int iscapture = this->iscapture;
const AudioUnitElement bus =
((iscapture) ? input_bus : output_bus);
const AudioUnitScope scope =
((iscapture) ? kAudioUnitScope_Output :
kAudioUnitScope_Input);
/* stop processing the audio unit */
result = AudioOutputUnitStop(this->hidden->audioUnit);
/* Remove the input callback */
SDL_memset(&callback, '\0', sizeof(AURenderCallbackStruct));
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioUnitProperty_SetRenderCallback,
scope, bus, &callback,
sizeof(callback));
CloseComponent(this->hidden->audioUnit);
this->hidden->audioUnitOpened = 0;
}
SDL_free(this->hidden->buffer);
SDL_free(this->hidden);
this->hidden = NULL;
}
}
#define CHECK_RESULT(msg) \
if (result != noErr) { \
COREAUDIO_CloseDevice(this); \
SDL_SetError("CoreAudio error (%s): %d", msg, (int) result); \
return 0; \
}
static int
find_device_by_name(_THIS, const char *devname, int iscapture)
{
AudioDeviceID devid = 0;
OSStatus result = noErr;
UInt32 size = 0;
UInt32 alive = 0;
pid_t pid = 0;
if (devname == NULL) {
size = sizeof(AudioDeviceID);
const AudioHardwarePropertyID propid =
((iscapture) ? kAudioHardwarePropertyDefaultInputDevice :
kAudioHardwarePropertyDefaultOutputDevice);
result = AudioHardwareGetProperty(propid, &size, &devid);
CHECK_RESULT("AudioHardwareGetProperty (default device)");
} else {
if (!find_device_id(devname, iscapture, &devid)) {
SDL_SetError("CoreAudio: No such audio device.");
return 0;
}
}
size = sizeof(alive);
result = AudioDeviceGetProperty(devid, 0, iscapture,
kAudioDevicePropertyDeviceIsAlive,
&size, &alive);
CHECK_RESULT
("AudioDeviceGetProperty (kAudioDevicePropertyDeviceIsAlive)");
if (!alive) {
SDL_SetError("CoreAudio: requested device exists, but isn't alive.");
return 0;
}
size = sizeof(pid);
result = AudioDeviceGetProperty(devid, 0, iscapture,
kAudioDevicePropertyHogMode, &size, &pid);
/* some devices don't support this property, so errors are fine here. */
if ((result == noErr) && (pid != -1)) {
SDL_SetError("CoreAudio: requested device is being hogged.");
return 0;
}
this->hidden->deviceID = devid;
return 1;
}
static int
prepare_audiounit(_THIS, const char *devname, int iscapture,
const AudioStreamBasicDescription * strdesc)
{
OSStatus result = noErr;
AURenderCallbackStruct callback;
ComponentDescription desc;
Component comp = NULL;
UInt32 enableIO = 0;
const AudioUnitElement output_bus = 0;
const AudioUnitElement input_bus = 1;
const AudioUnitElement bus = ((iscapture) ? input_bus : output_bus);
const AudioUnitScope scope = ((iscapture) ? kAudioUnitScope_Output :
kAudioUnitScope_Input);
if (!find_device_by_name(this, devname, iscapture)) {
SDL_SetError("Couldn't find requested CoreAudio device");
return 0;
}
SDL_memset(&desc, '\0', sizeof(ComponentDescription));
desc.componentType = kAudioUnitType_Output;
desc.componentSubType = kAudioUnitSubType_HALOutput;
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
comp = FindNextComponent(NULL, &desc);
if (comp == NULL) {
SDL_SetError("Couldn't find requested CoreAudio component");
return 0;
}
/* Open & initialize the audio unit */
result = OpenAComponent(comp, &this->hidden->audioUnit);
CHECK_RESULT("OpenAComponent");
this->hidden->audioUnitOpened = 1;
// !!! FIXME: this is wrong?
enableIO = ((iscapture) ? 1 : 0);
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Input, input_bus,
&enableIO, sizeof(enableIO));
CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_EnableIO input)");
// !!! FIXME: this is wrong?
enableIO = ((iscapture) ? 0 : 1);
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Output, output_bus,
&enableIO, sizeof(enableIO));
CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_EnableIO output)");
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global, 0,
&this->hidden->deviceID,
sizeof(AudioDeviceID));
CHECK_RESULT
("AudioUnitSetProperty (kAudioOutputUnitProperty_CurrentDevice)");
/* Set the data format of the audio unit. */
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioUnitProperty_StreamFormat,
scope, bus, strdesc, sizeof(*strdesc));
CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_StreamFormat)");
/* Set the audio callback */
SDL_memset(&callback, '\0', sizeof(AURenderCallbackStruct));
callback.inputProc = ((iscapture) ? inputCallback : outputCallback);
callback.inputProcRefCon = this;
result = AudioUnitSetProperty(this->hidden->audioUnit,
kAudioUnitProperty_SetRenderCallback,
scope, bus, &callback, sizeof(callback));
CHECK_RESULT
("AudioUnitSetProperty (kAudioUnitProperty_SetInputCallback)");
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
/* Allocate a sample buffer */
this->hidden->bufferOffset = this->hidden->bufferSize = this->spec.size;
this->hidden->buffer = SDL_malloc(this->hidden->bufferSize);
result = AudioUnitInitialize(this->hidden->audioUnit);
CHECK_RESULT("AudioUnitInitialize");
/* Finally, start processing of the audio unit */
result = AudioOutputUnitStart(this->hidden->audioUnit);
CHECK_RESULT("AudioOutputUnitStart");
/* We're running! */
return 1;
}
static int
COREAUDIO_OpenDevice(_THIS, const char *devname, int iscapture)
{
AudioStreamBasicDescription strdesc;
SDL_AudioFormat test_format = SDL_FirstAudioFormat(this->spec.format);
int valid_datatype = 0;
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return (0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Setup a AudioStreamBasicDescription with the requested format */
SDL_memset(&strdesc, '\0', sizeof(AudioStreamBasicDescription));
strdesc.mFormatID = kAudioFormatLinearPCM;
strdesc.mFormatFlags = kLinearPCMFormatFlagIsPacked;
strdesc.mChannelsPerFrame = this->spec.channels;
strdesc.mSampleRate = this->spec.freq;
strdesc.mFramesPerPacket = 1;
while ((!valid_datatype) && (test_format)) {
this->spec.format = test_format;
/* Just a list of valid SDL formats, so people don't pass junk here. */
switch (test_format) {
case AUDIO_U8:
case AUDIO_S8:
case AUDIO_U16LSB:
case AUDIO_S16LSB:
case AUDIO_U16MSB:
case AUDIO_S16MSB:
case AUDIO_S32LSB:
case AUDIO_S32MSB:
case AUDIO_F32LSB:
case AUDIO_F32MSB:
valid_datatype = 1;
strdesc.mBitsPerChannel = SDL_AUDIO_BITSIZE(this->spec.format);
if (SDL_AUDIO_ISBIGENDIAN(this->spec.format))
strdesc.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian;
if (SDL_AUDIO_ISFLOAT(this->spec.format))
strdesc.mFormatFlags |= kLinearPCMFormatFlagIsFloat;
else if (SDL_AUDIO_ISSIGNED(this->spec.format))
strdesc.mFormatFlags |= kLinearPCMFormatFlagIsSignedInteger;
break;
}
}
if (!valid_datatype) { /* shouldn't happen, but just in case... */
COREAUDIO_CloseDevice(this);
SDL_SetError("Unsupported audio format");
return 0;
}
strdesc.mBytesPerFrame =
strdesc.mBitsPerChannel * strdesc.mChannelsPerFrame / 8;
strdesc.mBytesPerPacket =
strdesc.mBytesPerFrame * strdesc.mFramesPerPacket;
if (!prepare_audiounit(this, devname, iscapture, &strdesc)) {
COREAUDIO_CloseDevice(this);
return 0; /* prepare_audiounit() will call SDL_SetError()... */
}
return 1; /* good to go. */
}
static int
COREAUDIO_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->DetectDevices = COREAUDIO_DetectDevices;
impl->GetDeviceName = COREAUDIO_GetDeviceName;
impl->OpenDevice = COREAUDIO_OpenDevice;
impl->CloseDevice = COREAUDIO_CloseDevice;
impl->Deinitialize = COREAUDIO_Deinitialize;
impl->ProvidesOwnCallbackThread = 1;
build_device_lists(); /* do an initial check for devices... */
return (outputDeviceCount > 0) ? 2 : 1;
}
AudioBootStrap COREAUDIO_bootstrap = {
"coreaudio", "Mac OS X CoreAudio", COREAUDIO_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_coreaudio_h
#define _SDL_coreaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
AudioUnit audioUnit;
int audioUnitOpened;
void *buffer;
UInt32 bufferOffset;
UInt32 bufferSize;
AudioDeviceID deviceID;
};
#endif /* _SDL_coreaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Tru64 UNIX MME support */
#include <mme_api.h>
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "SDL_mmeaudio.h"
static BOOL inUse[NUM_BUFFERS];
static void
SetMMerror(char *function, MMRESULT code)
{
int len;
char errbuf[MAXERRORLENGTH];
SDL_snprintf(errbuf, SDL_arraysize(errbuf), "%s: ", function);
len = SDL_strlen(errbuf);
waveOutGetErrorText(code, errbuf + len, MAXERRORLENGTH - len);
SDL_SetError("%s", errbuf);
}
static void CALLBACK
MME_Callback(HWAVEOUT hwo,
UINT uMsg, DWORD dwInstance, LPARAM dwParam1, LPARAM dwParam2)
{
WAVEHDR *wp = (WAVEHDR *) dwParam1;
if (uMsg == WOM_DONE)
inUse[wp->dwUser] = FALSE;
}
static int
MME_OpenDevice(_THIS, const char *devname, int iscapture)
{
int valid_format = 0;
MMRESULT result;
Uint8 *mixbuf = NULL;
int i;
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Set basic WAVE format parameters */
this->hidden->shm = mmeAllocMem(sizeof(*this->hidden->shm));
if (this->hidden->shm == NULL) {
MME_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden->shm, '\0', sizeof(*this->hidden->shm));
this->hidden->shm->sound = 0;
this->hidden->shm->wFmt.wf.wFormatTag = WAVE_FORMAT_PCM;
/* Determine the audio parameters from the AudioSpec */
/* Try for a closest match on audio format */
for (test_format = SDL_FirstAudioFormat(this->spec.format);
!valid_format && test_format;) {
valid_format = 1;
switch (test_format) {
case AUDIO_U8:
case AUDIO_S16:
case AUDIO_S32:
break;
default:
valid_format = 0;
test_format = SDL_NextAudioFormat();
}
}
if (!valid_format) {
MME_CloseDevice(this);
SDL_SetError("Unsupported audio format");
return 0;
}
this->spec.format = test_format;
this->hidden->shm->wFmt.wBitsPerSample = SDL_AUDIO_BITSIZE(test_format);
/* !!! FIXME: Can this handle more than stereo? */
this->hidden->shm->wFmt.wf.nChannels = this->spec.channels;
this->hidden->shm->wFmt.wf.nSamplesPerSec = this->spec.freq;
this->hidden->shm->wFmt.wf.nBlockAlign =
this->hidden->shm->wFmt.wf.nChannels *
this->hidden->shm->wFmt.wBitsPerSample / 8;
this->hidden->shm->wFmt.wf.nAvgBytesPerSec =
this->hidden->shm->wFmt.wf.nSamplesPerSec *
this->hidden->shm->wFmt.wf.nBlockAlign;
/* Check the buffer size -- minimum of 1/4 second (word aligned) */
if (this->spec.samples < (this->spec.freq / 4))
this->spec.samples = ((this->spec.freq / 4) + 3) & ~3;
/* Update the fragment size as size in bytes */
SDL_CalculateAudioSpec(&this->spec);
/* Open the audio device */
result = waveOutOpen(&(this->hidden->shm->sound),
WAVE_MAPPER,
&(this->hidden->shm->wFmt.wf),
MME_Callback,
NULL, (CALLBACK_FUNCTION | WAVE_OPEN_SHAREABLE));
if (result != MMSYSERR_NOERROR) {
MME_CloseDevice(this);
SetMMerror("waveOutOpen()", result);
return 0;
}
/* Create the sound buffers */
mixbuf = (Uint8 *) mmeAllocBuffer(NUM_BUFFERS * (this->spec.size));
if (mixbuf == NULL) {
MME_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
this->hidden->mixbuf = mixbuf;
for (i = 0; i < NUM_BUFFERS; i++) {
this->hidden->shm->wHdr[i].lpData = &mixbuf[i * (this->spec.size)];
this->hidden->shm->wHdr[i].dwBufferLength = this->spec.size;
this->hidden->shm->wHdr[i].dwFlags = 0;
this->hidden->shm->wHdr[i].dwUser = i;
this->hidden->shm->wHdr[i].dwLoops = 0; /* loop control counter */
this->hidden->shm->wHdr[i].lpNext = NULL; /* reserved for driver */
this->hidden->shm->wHdr[i].reserved = 0;
inUse[i] = FALSE;
}
this->hidden->next_buffer = 0;
return 1;
}
static void
MME_WaitDevice(_THIS)
{
while (inUse[this->hidden->next_buffer]) {
mmeWaitForCallbacks();
mmeProcessCallbacks();
}
}
static Uint8 *
MME_GetDeviceBuf(_THIS)
{
void *retval = this->hidden->shm->wHdr[this->hidden->next_buffer].lpData;
inUse[this->hidden->next_buffer] = TRUE;
return (Uint8 *) retval;
}
static void
MME_PlayDevice(_THIS)
{
/* Queue it up */
waveOutWrite(this->hidden->shm->sound,
&(this->hidden->shm->wHdr[this->hidden->next_buffer]),
sizeof(WAVEHDR));
this->hidden->next_buffer = (this->hidden->next_buffer + 1) % NUM_BUFFERS;
}
static void
MME_WaitDone(_THIS)
{
MMRESULT result;
int i;
if (this->hidden->shm->sound) {
for (i = 0; i < NUM_BUFFERS; i++)
while (inUse[i]) {
mmeWaitForCallbacks();
mmeProcessCallbacks();
}
result = waveOutReset(this->hidden->shm->sound);
if (result != MMSYSERR_NOERROR)
SetMMerror("waveOutReset()", result);
mmeProcessCallbacks();
}
}
static void
MME_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
MMRESULT result;
if (this->hidden->mixbuf) {
result = mmeFreeBuffer(this->hidden->mixbuf);
if (result != MMSYSERR_NOERROR)
SetMMerror("mmeFreeBuffer", result);
this->hidden->mixbuf = NULL;
}
if (this->hidden->shm) {
if (this->hidden->shm->sound) {
result = waveOutClose(this->hidden->shm->sound);
if (result != MMSYSERR_NOERROR)
SetMMerror("waveOutClose()", result);
mmeProcessCallbacks();
}
result = mmeFreeMem(this->hidden->shm);
if (result != MMSYSERR_NOERROR)
SetMMerror("mmeFreeMem()", result);
this->hidden->shm = NULL;
}
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static int
MME_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->OpenDevice = MME_OpenDevice;
impl->WaitDevice = MME_WaitDevice;
impl->WaitDone = MME_WaitDone;
impl->PlayDevice = MME_PlayDevice;
impl->GetDeviceBuf = MME_GetDeviceBuf;
impl->CloseDevice = MME_CloseDevice;
impl->OnlyHasDefaultOutputDevice = 1;
return 1;
}
/* !!! FIXME: Windows "windib" driver is called waveout, too */
AudioBootStrap MMEAUDIO_bootstrap = {
"waveout", "Tru64 MME WaveOut", MME_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#ifndef _SDL_mmeaudio_h
#define _SDL_mmeaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
#define NUM_BUFFERS 2
struct SharedMem
{
HWAVEOUT sound;
WAVEHDR wHdr[NUM_BUFFERS];
PCMWAVEFORMAT wFmt;
};
struct SDL_PrivateAudioData
{
Uint8 *mixbuf; /* The raw allocated mixing buffer */
struct SharedMem *shm;
int next_buffer;
};
#endif /* _SDL_mmeaudio_h */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
This driver was written by:
Erik Inge Bolsø
knan@mo.himolde.no
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#include <signal.h>
#include <unistd.h>
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "SDL_loadso.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "SDL_nasaudio.h"
/* The tag name used by nas audio */
#define NAS_DRIVER_NAME "nas"
static struct SDL_PrivateAudioData *this2 = NULL;
static void (*NAS_AuCloseServer) (AuServer *);
static void (*NAS_AuNextEvent) (AuServer *, AuBool, AuEvent *);
static AuBool(*NAS_AuDispatchEvent) (AuServer *, AuEvent *);
static AuFlowID(*NAS_AuCreateFlow) (AuServer *, AuStatus *);
static void (*NAS_AuStartFlow) (AuServer *, AuFlowID, AuStatus *);
static void (*NAS_AuSetElements)
(AuServer *, AuFlowID, AuBool, int, AuElement *, AuStatus *);
static void (*NAS_AuWriteElement)
(AuServer *, AuFlowID, int, AuUint32, AuPointer, AuBool, AuStatus *);
static AuServer *(*NAS_AuOpenServer)
(_AuConst char *, int, _AuConst char *, int, _AuConst char *, char **);
static AuEventHandlerRec *(*NAS_AuRegisterEventHandler)
(AuServer *, AuMask, int, AuID, AuEventHandlerCallback, AuPointer);
#ifdef SDL_AUDIO_DRIVER_NAS_DYNAMIC
static const char *nas_library = SDL_AUDIO_DRIVER_NAS_DYNAMIC;
static void *nas_handle = NULL;
static int
load_nas_sym(const char *fn, void **addr)
{
*addr = SDL_LoadFunction(nas_handle, fn);
if (*addr == NULL) {
return 0;
}
return 1;
}
/* cast funcs to char* first, to please GCC's strict aliasing rules. */
#define SDL_NAS_SYM(x) \
if (!load_nas_sym(#x, (void **) (char *) &NAS_##x)) return -1
#else
#define SDL_NAS_SYM(x) NAS_##x = x
#endif
static int
load_nas_syms(void)
{
SDL_NAS_SYM(AuCloseServer);
SDL_NAS_SYM(AuNextEvent);
SDL_NAS_SYM(AuDispatchEvent);
SDL_NAS_SYM(AuCreateFlow);
SDL_NAS_SYM(AuStartFlow);
SDL_NAS_SYM(AuSetElements);
SDL_NAS_SYM(AuWriteElement);
SDL_NAS_SYM(AuOpenServer);
SDL_NAS_SYM(AuRegisterEventHandler);
return 0;
}
#undef SDL_NAS_SYM
#ifdef SDL_AUDIO_DRIVER_NAS_DYNAMIC
static void
UnloadNASLibrary(void)
{
if (nas_handle != NULL) {
SDL_UnloadObject(nas_handle);
nas_handle = NULL;
}
}
static int
LoadNASLibrary(void)
{
int retval = 0;
if (nas_handle == NULL) {
nas_handle = SDL_LoadObject(nas_library);
if (nas_handle == NULL) {
/* Copy error string so we can use it in a new SDL_SetError(). */
char *origerr = SDL_GetError();
size_t len = SDL_strlen(origerr) + 1;
char *err = (char *) alloca(len);
SDL_strlcpy(err, origerr, len);
retval = -1;
SDL_SetError("NAS: SDL_LoadObject('%s') failed: %s\n",
nas_library, err);
} else {
retval = load_nas_syms();
if (retval < 0) {
UnloadNASLibrary();
}
}
}
return retval;
}
#else
static void
UnloadNASLibrary(void)
{
}
static int
LoadNASLibrary(void)
{
load_nas_syms();
return 0;
}
#endif /* SDL_AUDIO_DRIVER_NAS_DYNAMIC */
/* This function waits until it is possible to write a full sound buffer */
static void
NAS_WaitDevice(_THIS)
{
while (this->hidden->buf_free < this->hidden->mixlen) {
AuEvent ev;
NAS_AuNextEvent(this->hidden->aud, AuTrue, &ev);
NAS_AuDispatchEvent(this->hidden->aud, &ev);
}
}
static void
NAS_PlayDevice(_THIS)
{
while (this->hidden->mixlen > this->hidden->buf_free) {
/*
* We think the buffer is full? Yikes! Ask the server for events,
* in the hope that some of them is LowWater events telling us more
* of the buffer is free now than what we think.
*/
AuEvent ev;
NAS_AuNextEvent(this->hidden->aud, AuTrue, &ev);
NAS_AuDispatchEvent(this->hidden->aud, &ev);
}
this->hidden->buf_free -= this->hidden->mixlen;
/* Write the audio data */
NAS_AuWriteElement(this->hidden->aud, this->hidden->flow, 0,
this->hidden->mixlen, this->hidden->mixbuf, AuFalse,
NULL);
this->hidden->written += this->hidden->mixlen;
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", this->hidden->mixlen);
#endif
}
static Uint8 *
NAS_GetDeviceBuf(_THIS)
{
return (this->hidden->mixbuf);
}
static void
NAS_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->mixbuf != NULL) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if (this->hidden->aud) {
NAS_AuCloseServer(this->hidden->aud);
this->hidden->aud = 0;
}
SDL_free(this->hidden);
this2 = this->hidden = NULL;
}
}
static unsigned char
sdlformat_to_auformat(unsigned int fmt)
{
switch (fmt) {
case AUDIO_U8:
return AuFormatLinearUnsigned8;
case AUDIO_S8:
return AuFormatLinearSigned8;
case AUDIO_U16LSB:
return AuFormatLinearUnsigned16LSB;
case AUDIO_U16MSB:
return AuFormatLinearUnsigned16MSB;
case AUDIO_S16LSB:
return AuFormatLinearSigned16LSB;
case AUDIO_S16MSB:
return AuFormatLinearSigned16MSB;
}
return AuNone;
}
static AuBool
event_handler(AuServer * aud, AuEvent * ev, AuEventHandlerRec * hnd)
{
switch (ev->type) {
case AuEventTypeElementNotify:
{
AuElementNotifyEvent *event = (AuElementNotifyEvent *) ev;
switch (event->kind) {
case AuElementNotifyKindLowWater:
if (this2->buf_free >= 0) {
this2->really += event->num_bytes;
gettimeofday(&this2->last_tv, 0);
this2->buf_free += event->num_bytes;
} else {
this2->buf_free = event->num_bytes;
}
break;
case AuElementNotifyKindState:
switch (event->cur_state) {
case AuStatePause:
if (event->reason != AuReasonUser) {
if (this2->buf_free >= 0) {
this2->really += event->num_bytes;
gettimeofday(&this2->last_tv, 0);
this2->buf_free += event->num_bytes;
} else {
this2->buf_free = event->num_bytes;
}
}
break;
}
}
}
}
return AuTrue;
}
static AuDeviceID
find_device(_THIS, int nch)
{
/* These "Au" things are all macros, not functions... */
int i;
for (i = 0; i < AuServerNumDevices(this->hidden->aud); i++) {
if ((AuDeviceKind(AuServerDevice(this->hidden->aud, i)) ==
AuComponentKindPhysicalOutput) &&
AuDeviceNumTracks(AuServerDevice(this->hidden->aud, i)) == nch) {
return AuDeviceIdentifier(AuServerDevice(this->hidden->aud, i));
}
}
return AuNone;
}
static int
NAS_OpenDevice(_THIS, const char *devname, int iscapture)
{
AuElement elms[3];
int buffer_size;
SDL_AudioFormat test_format, format;
/* Initialize all variables that we clean on shutdown */
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
if (this->hidden == NULL) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Try for a closest match on audio format */
format = 0;
for (test_format = SDL_FirstAudioFormat(this->spec.format);
!format && test_format;) {
format = sdlformat_to_auformat(test_format);
if (format == AuNone) {
test_format = SDL_NextAudioFormat();
}
}
if (format == 0) {
NAS_CloseDevice(this);
SDL_SetError("NAS: Couldn't find any hardware audio formats");
return 0;
}
this->spec.format = test_format;
this->hidden->aud = NAS_AuOpenServer("", 0, NULL, 0, NULL, NULL);
if (this->hidden->aud == 0) {
NAS_CloseDevice(this);
SDL_SetError("NAS: Couldn't open connection to NAS server");
return 0;
}
this->hidden->dev = find_device(this, this->spec.channels);
if ((this->hidden->dev == AuNone)
|| (!(this->hidden->flow = NAS_AuCreateFlow(this->hidden->aud, 0)))) {
NAS_CloseDevice(this);
SDL_SetError("NAS: Couldn't find a fitting device on NAS server");
return 0;
}
buffer_size = this->spec.freq;
if (buffer_size < 4096)
buffer_size = 4096;
if (buffer_size > 32768)
buffer_size = 32768; /* So that the buffer won't get unmanageably big. */
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
this2 = this->hidden;
AuMakeElementImportClient(elms, this->spec.freq, format,
this->spec.channels, AuTrue, buffer_size,
buffer_size / 4, 0, NULL);
AuMakeElementExportDevice(elms + 1, 0, this->hidden->dev, this->spec.freq,
AuUnlimitedSamples, 0, NULL);
NAS_AuSetElements(this->hidden->aud, this->hidden->flow, AuTrue, 2, elms,
NULL);
NAS_AuRegisterEventHandler(this->hidden->aud, AuEventHandlerIDMask, 0,
this->hidden->flow, event_handler,
(AuPointer) NULL);
NAS_AuStartFlow(this->hidden->aud, this->hidden->flow, NULL);
/* Allocate mixing buffer */
this->hidden->mixlen = this->spec.size;
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if (this->hidden->mixbuf == NULL) {
NAS_CloseDevice(this);
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
/* We're ready to rock and roll. :-) */
return 1;
}
static void
NAS_Deinitialize(void)
{
UnloadNASLibrary();
}
static int
NAS_Init(SDL_AudioDriverImpl * impl)
{
if (LoadNASLibrary() < 0) {
return 0;
} else {
AuServer *aud = NAS_AuOpenServer("", 0, NULL, 0, NULL, NULL);
if (aud == NULL) {
SDL_SetError("NAS: AuOpenServer() failed (no audio server?)");
return 0;
}
NAS_AuCloseServer(aud);
}
/* Set the function pointers */
impl->OpenDevice = NAS_OpenDevice;
impl->PlayDevice = NAS_PlayDevice;
impl->WaitDevice = NAS_WaitDevice;
impl->GetDeviceBuf = NAS_GetDeviceBuf;
impl->CloseDevice = NAS_CloseDevice;
impl->Deinitialize = NAS_Deinitialize;
impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: is this true? */
return 2; /* 2 == definitely has an audio device. */
}
AudioBootStrap NAS_bootstrap = {
NAS_DRIVER_NAME, "Network Audio System", NAS_Init, 0
};
/* vi: set ts=4 sw=4 expandtab: */

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