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Added a hint for alternate OpenGL NV12 data format

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This commit is contained in:
Sam Lantinga 2021-10-21 20:48:05 -07:00
parent 6c134cf148
commit b360965d0d
3 changed files with 106 additions and 55 deletions
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100
src/render/opengl/SDL_render_gl.c
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@ -123,6 +123,7 @@ typedef struct
GLfloat texh;
GLenum format;
GLenum formattype;
GL_Shader shader;
void *pixels;
int pitch;
SDL_Rect locked_rect;
@ -630,6 +631,57 @@ GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
}
#endif
if (texture->format == SDL_PIXELFORMAT_ABGR8888 || texture->format == SDL_PIXELFORMAT_ARGB8888) {
data->shader = SHADER_RGBA;
} else {
data->shader = SHADER_RGB;
}
#if SDL_HAVE_YUV
if (data->yuv || data->nv12) {
switch (SDL_GetYUVConversionModeForResolution(texture->w, texture->h)) {
case SDL_YUV_CONVERSION_JPEG:
if (data->yuv) {
data->shader = SHADER_YUV_JPEG;
} else if (texture->format == SDL_PIXELFORMAT_NV12) {
data->shader = SHADER_NV12_JPEG;
} else {
data->shader = SHADER_NV21_JPEG;
}
break;
case SDL_YUV_CONVERSION_BT601:
if (data->yuv) {
data->shader = SHADER_YUV_BT601;
} else if (texture->format == SDL_PIXELFORMAT_NV12) {
if (SDL_GetHintBoolean("SDL_RENDER_OPENGL_NV12_RG_SHADER", SDL_FALSE)) {
data->shader = SHADER_NV12_RG_BT601;
} else {
data->shader = SHADER_NV12_RA_BT601;
}
} else {
data->shader = SHADER_NV21_BT601;
}
break;
case SDL_YUV_CONVERSION_BT709:
if (data->yuv) {
data->shader = SHADER_YUV_BT709;
} else if (texture->format == SDL_PIXELFORMAT_NV12) {
if (SDL_GetHintBoolean("SDL_RENDER_OPENGL_NV12_RG_SHADER", SDL_FALSE)) {
data->shader = SHADER_NV12_RG_BT709;
} else {
data->shader = SHADER_NV12_RA_BT709;
}
} else {
data->shader = SHADER_NV21_BT709;
}
break;
default:
SDL_assert(!"unsupported YUV conversion mode");
break;
}
}
#endif /* SDL_HAVE_YUV */
return GL_CheckError("", renderer);
}
@ -1186,54 +1238,8 @@ SetCopyState(GL_RenderData *data, const SDL_RenderCommand *cmd)
{
SDL_Texture *texture = cmd->data.draw.texture;
const GL_TextureData *texturedata = (GL_TextureData *) texture->driverdata;
GL_Shader shader;
if (texture->format == SDL_PIXELFORMAT_ABGR8888 || texture->format == SDL_PIXELFORMAT_ARGB8888) {
shader = SHADER_RGBA;
} else {
shader = SHADER_RGB;
}
#if SDL_HAVE_YUV
if (data->shaders) {
if (texturedata->yuv || texturedata->nv12) {
switch (SDL_GetYUVConversionModeForResolution(texture->w, texture->h)) {
case SDL_YUV_CONVERSION_JPEG:
if (texturedata->yuv) {
shader = SHADER_YUV_JPEG;
} else if (texture->format == SDL_PIXELFORMAT_NV12) {
shader = SHADER_NV12_JPEG;
} else {
shader = SHADER_NV21_JPEG;
}
break;
case SDL_YUV_CONVERSION_BT601:
if (texturedata->yuv) {
shader = SHADER_YUV_BT601;
} else if (texture->format == SDL_PIXELFORMAT_NV12) {
shader = SHADER_NV12_BT601;
} else {
shader = SHADER_NV21_BT601;
}
break;
case SDL_YUV_CONVERSION_BT709:
if (texturedata->yuv) {
shader = SHADER_YUV_BT709;
} else if (texture->format == SDL_PIXELFORMAT_NV12) {
shader = SHADER_NV12_BT709;
} else {
shader = SHADER_NV21_BT709;
}
break;
default:
SDL_assert(!"unsupported YUV conversion mode");
break;
}
}
}
#endif
SetDrawState(data, cmd, shader);
SetDrawState(data, cmd, texturedata->shader);
if (texture != data->drawstate.texture) {
const GLenum textype = data->textype;