pandory500/SDL-mirror
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Updated SDL's YUV support, many thanks to Adrien Descamps

Browse source 
New functions get and set the YUV colorspace conversion mode:
	SDL_SetYUVConversionMode()
	SDL_GetYUVConversionMode()
	SDL_GetYUVConversionModeForResolution()

SDL_ConvertPixels() converts between all supported RGB and YUV formats, with SSE acceleration for converting from planar YUV formats (YV12, NV12, etc) to common RGB/RGBA formats.

Added a new test program, testyuv, to verify correctness and speed of YUV conversion functionality.
This commit is contained in:
Sam Lantinga 2017-11-12 22:51:12 -08:00
parent e7cc03e0bd
commit 145d2469ae
60 changed files with 8368 additions and 4310 deletions
Download patch file Download diff file Expand all files Collapse all files

53
src/render/opengles2/SDL_render_gles2.c
View file

@ -950,7 +950,7 @@ static void GLES2_EvictShader(SDL_Renderer *renderer, GLES2_ShaderCacheEntry *en
static GLES2_ProgramCacheEntry *GLES2_CacheProgram(SDL_Renderer *renderer,
GLES2_ShaderCacheEntry *vertex,
GLES2_ShaderCacheEntry *fragment);
static int GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source);
static int GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source, int w, int h);
static GLES2_ProgramCacheEntry *
GLES2_CacheProgram(SDL_Renderer *renderer, GLES2_ShaderCacheEntry *vertex,
@ -1189,7 +1189,7 @@ GLES2_EvictShader(SDL_Renderer *renderer, GLES2_ShaderCacheEntry *entry)
}
static int
GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source)
GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source, int w, int h)
{
GLES2_DriverContext *data = (GLES2_DriverContext *)renderer->driverdata;
GLES2_ShaderCacheEntry *vertex = NULL;
@ -1216,13 +1216,52 @@ GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source)
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_BGR_SRC;
break;
case GLES2_IMAGESOURCE_TEXTURE_YUV:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_YUV_SRC;
switch (SDL_GetYUVConversionModeForResolution(w, h)) {
case SDL_YUV_CONVERSION_JPEG:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_YUV_JPEG_SRC;
break;
case SDL_YUV_CONVERSION_BT601:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT601_SRC;
break;
case SDL_YUV_CONVERSION_BT709:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT709_SRC;
break;
default:
SDL_SetError("Unsupported YUV conversion mode: %d\n", SDL_GetYUVConversionModeForResolution(w, h));
goto fault;
}
break;
case GLES2_IMAGESOURCE_TEXTURE_NV12:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV12_SRC;
switch (SDL_GetYUVConversionModeForResolution(w, h)) {
case SDL_YUV_CONVERSION_JPEG:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV12_JPEG_SRC;
break;
case SDL_YUV_CONVERSION_BT601:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV12_BT601_SRC;
break;
case SDL_YUV_CONVERSION_BT709:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV12_BT709_SRC;
break;
default:
SDL_SetError("Unsupported YUV conversion mode: %d\n", SDL_GetYUVConversionModeForResolution(w, h));
goto fault;
}
break;
case GLES2_IMAGESOURCE_TEXTURE_NV21:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV21_SRC;
switch (SDL_GetYUVConversionModeForResolution(w, h)) {
case SDL_YUV_CONVERSION_JPEG:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV21_JPEG_SRC;
break;
case SDL_YUV_CONVERSION_BT601:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT601_SRC;
break;
case SDL_YUV_CONVERSION_BT709:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT709_SRC;
break;
default:
SDL_SetError("Unsupported YUV conversion mode: %d\n", SDL_GetYUVConversionModeForResolution(w, h));
goto fault;
}
break;
default:
goto fault;
@ -1445,7 +1484,7 @@ GLES2_SetDrawingState(SDL_Renderer * renderer)
GLES2_SetTexCoords(data, SDL_FALSE);
/* Activate an appropriate shader and set the projection matrix */
if (GLES2_SelectProgram(renderer, GLES2_IMAGESOURCE_SOLID) < 0) {
if (GLES2_SelectProgram(renderer, GLES2_IMAGESOURCE_SOLID, 0, 0) < 0) {
return -1;
}
@ -1707,7 +1746,7 @@ GLES2_SetupCopy(SDL_Renderer *renderer, SDL_Texture *texture)
}
}
if (GLES2_SelectProgram(renderer, sourceType) < 0) {
if (GLES2_SelectProgram(renderer, sourceType, texture->w, texture->h) < 0) {
return -1;
}