mirror of https://github.com/snes9xgit/snes9x.git
libretro: use RGB565 if available
This commit is contained in:
parent
b43623fa7a
commit
d7e3fa64a2
|
@ -84,6 +84,17 @@ void retro_get_system_info(struct retro_system_info *info)
|
|||
|
||||
void retro_get_system_av_info(struct retro_system_av_info *info)
|
||||
{
|
||||
int pixel_format = RGB555;
|
||||
if(environ_cb) {
|
||||
pixel_format = RGB565;
|
||||
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
|
||||
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
|
||||
pixel_format = RGB555;
|
||||
}
|
||||
S9xGraphicsDeinit();
|
||||
S9xSetRenderPixelFormat(pixel_format);
|
||||
S9xGraphicsInit();
|
||||
|
||||
memset(info,0,sizeof(retro_system_av_info));
|
||||
|
||||
info->geometry.base_width = SNES_WIDTH;
|
||||
|
@ -275,7 +286,6 @@ void retro_init()
|
|||
S9xSetSoundMute(FALSE);
|
||||
S9xSetSamplesAvailableCallback(S9xAudioCallback, NULL);
|
||||
|
||||
S9xSetRenderPixelFormat(RGB555);
|
||||
GFX.Pitch = MAX_SNES_WIDTH * sizeof(uint16);
|
||||
GFX.Screen = (uint16*) calloc(1, GFX.Pitch * MAX_SNES_HEIGHT);
|
||||
S9xGraphicsInit();
|
||||
|
|
|
@ -3,6 +3,7 @@
|
|||
|
||||
#include "snes9x.h"
|
||||
#include <stddef.h>
|
||||
#include <limits.h>
|
||||
|
||||
// Hack applied for MSVC when compiling in C89 mode as it isn't C99 compliant.
|
||||
#ifdef __cplusplus
|
||||
|
@ -298,7 +299,7 @@ enum retro_key
|
|||
// 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 RetroArch supports frame duping,
|
||||
// Boolean value whether or not frontend supports frame duping,
|
||||
// passing NULL to video frame callback.
|
||||
//
|
||||
#define RETRO_ENVIRONMENT_GET_VARIABLE 4 // struct retro_variable * --
|
||||
|
@ -354,14 +355,36 @@ enum retro_key
|
|||
#define RETRO_ENVIRONMENT_SET_PIXEL_FORMAT 10
|
||||
// const enum retro_pixel_format * --
|
||||
// Sets the internal pixel format used by the implementation.
|
||||
// The default pixel format is RETRO_PIXEL_FORMAT_XRGB1555.
|
||||
// The default pixel format is RETRO_PIXEL_FORMAT_0RGB1555.
|
||||
// This pixel format however, is deprecated (see enum retro_pixel_format).
|
||||
// If the call returns false, the frontend does not support this pixel format.
|
||||
// This function should be called inside retro_load_game() or retro_get_system_av_info().
|
||||
//
|
||||
#define RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS 11
|
||||
// const struct retro_input_descriptor * --
|
||||
// Sets an array of retro_input_descriptors.
|
||||
// It is up to the frontend to present this in a usable way.
|
||||
// The array is terminated by retro_input_descriptor::description being set to NULL.
|
||||
// This function can be called at any time, but it is recommended to call it as early as possible.
|
||||
|
||||
|
||||
enum retro_pixel_format
|
||||
{
|
||||
RETRO_PIXEL_FORMAT_0RGB1555 = 0, // 0RGB1555, native endian. 0 bit must be set to 0.
|
||||
RETRO_PIXEL_FORMAT_XRGB8888 // XRGB8888, native endian. X bits are ignored.
|
||||
// 0RGB1555, native endian. 0 bit must be set to 0.
|
||||
// This pixel format is default for compatibility concerns only.
|
||||
// If a 15/16-bit pixel format is desired, consider using RGB565.
|
||||
RETRO_PIXEL_FORMAT_0RGB1555 = 0,
|
||||
|
||||
// XRGB8888, native endian. X bits are ignored.
|
||||
RETRO_PIXEL_FORMAT_XRGB8888 = 1,
|
||||
|
||||
// RGB565, native endian. This pixel format is the recommended format to use if a 15/16-bit format is desired
|
||||
// as it is the pixel format that is typically available on a wide range of low-power devices.
|
||||
// It is also natively supported in APIs like OpenGL ES.
|
||||
RETRO_PIXEL_FORMAT_RGB565 = 2,
|
||||
|
||||
// Ensure sizeof() == sizeof(int).
|
||||
RETRO_PIXEL_FORMAT_UNKNOWN = INT_MAX
|
||||
};
|
||||
|
||||
struct retro_message
|
||||
|
@ -370,8 +393,25 @@ struct retro_message
|
|||
unsigned frames; // Duration in frames of message.
|
||||
};
|
||||
|
||||
// Describes how the libretro implementation maps a libretro input bind
|
||||
// to its internal input system through a human readable string.
|
||||
// This string can be used to better let a user configure input.
|
||||
struct retro_input_descriptor
|
||||
{
|
||||
// Associates given parameters with a description.
|
||||
unsigned port;
|
||||
unsigned device;
|
||||
unsigned index;
|
||||
unsigned id;
|
||||
|
||||
const char *description; // Human readable description for parameters.
|
||||
// The pointer must remain valid until retro_unload_game() is called.
|
||||
};
|
||||
|
||||
struct retro_system_info
|
||||
{
|
||||
// All pointers are owned by libretro implementation, and pointers must remain valid until retro_deinit() is called.
|
||||
|
||||
const char *library_name; // Descriptive name of library. Should not contain any version numbers, etc.
|
||||
const char *library_version; // Descriptive version of core.
|
||||
|
||||
|
@ -440,6 +480,8 @@ typedef bool (*retro_environment_t)(unsigned cmd, void *data);
|
|||
// Render a frame. Pixel format is 15-bit 0RGB1555 native endian unless changed (see RETRO_ENVIRONMENT_SET_PIXEL_FORMAT).
|
||||
// Width and height specify dimensions of buffer.
|
||||
// Pitch specifices length in bytes between two lines in buffer.
|
||||
// For performance reasons, it is highly recommended to have a frame that is packed in memory, i.e. pitch == width * byte_per_pixel.
|
||||
// Certain graphic APIs, such as OpenGL ES, do not like textures that are not packed in memory.
|
||||
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.
|
||||
|
@ -479,6 +521,8 @@ 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.
|
||||
// NOTE: The implementation of this function might not initialize every variable if needed.
|
||||
// E.g. geom.aspect_ratio might not be initialized if core doesn't desire a particular aspect ratio.
|
||||
void retro_get_system_av_info(struct retro_system_av_info *info);
|
||||
|
||||
// Sets device to be used for player 'port'.
|
||||
|
|
Loading…
Reference in New Issue