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libretro: update to latest libretro.h, add RETRO_MEMORY_VIDEO_RAM

This commit is contained in:
OV2 2012-04-26 13:16:58 +02:00
parent b0233de08e
commit 87c1717ac6
2 changed files with 93 additions and 28 deletions
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8
libretro/libretro.cpp
View File

@ -90,7 +90,7 @@ void retro_get_system_av_info(struct retro_system_av_info *info)
info->geometry.base_height = SNES_HEIGHT;
info->geometry.max_width = MAX_SNES_WIDTH;
info->geometry.max_height = MAX_SNES_HEIGHT;
info->geometry.aspect_ratio = 4.0 / 3.0;
info->geometry.aspect_ratio = 4.0f / 3.0f;
info->timing.sample_rate = 32040.5;
info->timing.fps = retro_get_region() == RETRO_REGION_NTSC ? 21477272.0 / 357366.0 : 21281370.0 / 425568.0;
}
@ -511,6 +511,9 @@ void* retro_get_memory_data(unsigned type)
case RETRO_MEMORY_SYSTEM_RAM:
data = Memory.RAM;
break;
case RETRO_MEMORY_VIDEO_RAM:
data = Memory.VRAM;
break;
default:
data = NULL;
break;
@ -544,6 +547,9 @@ size_t retro_get_memory_size(unsigned type)
case RETRO_MEMORY_SYSTEM_RAM:
size = 128 * 1024;
break;
case RETRO_MEMORY_VIDEO_RAM:
size = 64 * 1024;
break;
default:
size = 0;
break;

103
libretro/libretro.h
View File

@ -7,8 +7,14 @@
#ifdef __cplusplus
extern "C" {
#else
#if defined(_MSC_VER) && !defined(__cplusplus)
#define bool unsigned char
#define true 1
#define false 0
#else
#include <stdbool.h>
#endif
#endif
#define RETRO_API_VERSION 1
@ -57,6 +63,7 @@ extern "C" {
#define RETRO_MEMORY_SAVE_RAM 0
#define RETRO_MEMORY_RTC 1
#define RETRO_MEMORY_SYSTEM_RAM 2
#define RETRO_MEMORY_VIDEO_RAM 3
#define RETRO_MEMORY_SNES_BSX_RAM ((1 << 8) | RETRO_MEMORY_SAVE_RAM)
#define RETRO_MEMORY_SNES_BSX_PRAM ((2 << 8) | RETRO_MEMORY_SAVE_RAM)
@ -82,7 +89,7 @@ extern "C" {
// Boolean value whether or not the implementation should use overscan, or crop away overscan.
//
#define RETRO_ENVIRONMENT_GET_CAN_DUPE 3 // bool * --
// Boolean value whether or not SSNES supports frame duping,
// Boolean value whether or not RetroArch supports frame duping,
// passing NULL to video frame callback.
//
#define RETRO_ENVIRONMENT_GET_VARIABLE 4 // struct retro_variable * --
@ -99,20 +106,31 @@ extern "C" {
//
#define RETRO_ENVIRONMENT_SET_MESSAGE 6 // const struct retro_message * --
// Sets a message to be displayed in implementation-specific manner for a certain amount of 'frames'.
// Should not be used for trivial messages, which should simply be logged to stderr.
struct retro_message
{
const char *msg;
unsigned frames;
const char *msg; // Message to be displayed.
unsigned frames; // Duration in frames of message.
};
struct retro_system_info
{
const char *library_name;
const char *library_version;
const char *valid_extensions;
bool need_fullpath;
bool block_extract;
const char *library_name; // Descriptive name of library. Should not contain any version numbers, etc.
const char *library_version; // Descriptive version of core.
const char *valid_extensions; // A string listing probably rom extensions the core will be able to load, separated with pipe.
// I.e. "bin|rom|iso".
// Typically used for a GUI to filter out extensions.
bool need_fullpath; // If true, retro_load_game() is guaranteed to provide a valid pathname in retro_game_info::path.
// ::data and ::size are both invalid.
// If false, ::data and ::size are guaranteed to be valid, but ::path might not be valid.
// This is typically set to true for libretro implementations that must load from file.
// Implementations should strive for setting this to false, as it allows the frontend to perform patching, etc.
bool block_extract; // If true, the frontend is not allowed to extract any archives before loading the real ROM.
// Necessary for certain libretro implementations that load games from zipped archives.
};
struct retro_game_geometry
@ -152,32 +170,39 @@ struct retro_game_info
{
const char *path; // Path to game, UTF-8 encoded. Usually used as a reference.
// May be NULL if rom was loaded from stdin or similar.
// SET_NEED_FULLPATH path guaranteed that this path is valid.
const void *data; // Memory buffer of loaded game.
// If the game is too big to load in one go.
// SET_NEED_FULLPATH should be used.
// In this case, data and size will be 0,
// and game can be loaded from path.
// retro_system_info::need_fullpath guaranteed that this path is valid.
const void *data; // Memory buffer of loaded game. Will be NULL if need_fullpath was set.
size_t size; // Size of memory buffer.
const char *meta; // String of implementation specific meta-data.
};
// Callbacks
//
// Environment callback. Gives implementations a way of performing uncommon tasks. Extensible.
typedef bool (*retro_environment_t)(unsigned cmd, void *data);
// Render a frame. Pixel format is 15-bit XRGB1555 native endian.
// Width and height specify dimensions of buffer.
// Pitch specifices length in bytes between two lines in buffer.
typedef void (*retro_video_refresh_t)(const void *data, unsigned width, unsigned height, size_t pitch);
// Renders a single audio frame. Should only be used if implementation generates a single sample at a time.
// Format is signed 16-bit native endian.
typedef void (*retro_audio_sample_t)(int16_t left, int16_t right);
// Renders multiple audio frames in one go. One frame is defined as a sample of left and right channels, interleaved.
// I.e. int16_t buf[4] = { l, r, l, r }; would be 2 frames.
// Only one of the audio callbacks must ever be used.
typedef size_t (*retro_audio_sample_batch_t)(const int16_t *data, size_t frames);
// Polls input.
typedef void (*retro_input_poll_t)(void);
// Queries for input for player 'port'. device will be masked with RETRO_DEVICE_MASK.
// Specialization of devices such as RETRO_DEVICE_JOYPAD_MULTITAP that have been set with retro_set_controller_port_device()
// will still use the higher level RETRO_DEVICE_JOYPAD to request input.
typedef int16_t (*retro_input_state_t)(unsigned port, unsigned device, unsigned index, unsigned id);
void retro_init(void);
void retro_deinit(void);
unsigned retro_api_version(void);
void retro_get_system_info(struct retro_system_info *info);
void retro_get_system_av_info(struct retro_system_av_info *info);
// Sets callbacks. retro_set_environment() is guaranteed to be called before retro_init().
// The rest of the set_* functions are guaranteed to have been called before the first call to retro_run() is made.
void retro_set_environment(retro_environment_t);
void retro_set_video_refresh(retro_video_refresh_t);
void retro_set_audio_sample(retro_audio_sample_t);
@ -185,29 +210,63 @@ void retro_set_audio_sample_batch(retro_audio_sample_batch_t);
void retro_set_input_poll(retro_input_poll_t);
void retro_set_input_state(retro_input_state_t);
// Library global initialization/deinitialization.
void retro_init(void);
void retro_deinit(void);
// Must return RETRO_API_VERSION. Used to validate ABI compatibility when the API is revised.
unsigned retro_api_version(void);
// Gets statically known system info. Pointers provided in *info must be statically allocated.
// Can be called at any time, even before retro_init().
void retro_get_system_info(struct retro_system_info *info);
// Gets information about system audio/video timings and geometry.
// Can be called only after retro_load_game() has successfully completed.
void retro_get_system_av_info(struct retro_system_av_info *info);
// Sets device to be used for player 'port'.
void retro_set_controller_port_device(unsigned port, unsigned device);
// Resets the current game.
void retro_reset(void);
// Runs the game for one video frame.
// During retro_run(), input_poll callback must be called at least once.
//
// If a frame is not rendered for reasons where a game "dropped" a frame,
// this still counts as a frame, and retro_run() should explicitly dupe a frame if GET_CAN_DUPE returns true.
// In this case, the video callback can take a NULL argument for data.
void retro_run(void);
// Returns the amount of data the implementation requires to serialize internal state (save states).
// Beetween calls to retro_load_game() and retro_unload_game(), the returned size is never allowed to be larger than a previous returned value, to
// ensure that the frontend can allocate a save state buffer once.
size_t retro_serialize_size(void);
// Serializes internal state. If failed, or size is lower than retro_serialize_size(), it should return false, true otherwise.
bool retro_serialize(void *data, size_t size);
bool retro_unserialize(const void *data, size_t size);
void retro_cheat_reset(void);
void retro_cheat_set(unsigned index, bool enabled, const char *code);
// Loads a game.
bool retro_load_game(const struct retro_game_info *game);
// Loads a "special" kind of game. Should not be used except in extreme cases.
bool retro_load_game_special(
unsigned game_type,
const struct retro_game_info *info, size_t num_info
);
// Unloads a currently loaded game.
void retro_unload_game(void);
// Gets region of game.
unsigned retro_get_region(void);
// Gets region of memory.
void *retro_get_memory_data(unsigned id);
size_t retro_get_memory_size(unsigned id);