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Added support for decoding MJPG into NV12 textures

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This commit is contained in:
Sam Lantinga 2025-02-20 01:11:43 -08:00
parent 06602f4e80
commit 2e89c53ebc
3 changed files with 232 additions and 129 deletions
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19
src/render/SDL_render.c
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@ -1282,7 +1282,12 @@ static SDL_PixelFormat GetClosestSupportedFormat(SDL_Renderer *renderer, SDL_Pix
int i;
if (format == SDL_PIXELFORMAT_MJPG) {
// We'll decode to SDL_PIXELFORMAT_RGBA32
// We'll decode to SDL_PIXELFORMAT_NV12 or SDL_PIXELFORMAT_RGBA32
for (i = 0; i < renderer->num_texture_formats; ++i) {
if (renderer->texture_formats[i] == SDL_PIXELFORMAT_NV12) {
return renderer->texture_formats[i];
}
}
for (i = 0; i < renderer->num_texture_formats; ++i) {
if (renderer->texture_formats[i] == SDL_PIXELFORMAT_RGBA32) {
return renderer->texture_formats[i];
@ -1417,11 +1422,15 @@ SDL_Texture *SDL_CreateTextureWithProperties(SDL_Renderer *renderer, SDL_Propert
closest_format = renderer->texture_formats[0];
}
default_colorspace = SDL_GetDefaultColorspaceForFormat(closest_format);
if (SDL_COLORSPACETYPE(texture->colorspace) == SDL_COLORSPACETYPE(default_colorspace)) {
SDL_SetNumberProperty(native_props, SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER, texture->colorspace);
if (format == SDL_PIXELFORMAT_MJPG && closest_format == SDL_PIXELFORMAT_NV12) {
SDL_SetNumberProperty(native_props, SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER, SDL_COLORSPACE_JPEG);
} else {
SDL_SetNumberProperty(native_props, SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER, default_colorspace);
default_colorspace = SDL_GetDefaultColorspaceForFormat(closest_format);
if (SDL_COLORSPACETYPE(texture->colorspace) == SDL_COLORSPACETYPE(default_colorspace)) {
SDL_SetNumberProperty(native_props, SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER, texture->colorspace);
} else {
SDL_SetNumberProperty(native_props, SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER, default_colorspace);
}
}
SDL_SetNumberProperty(native_props, SDL_PROP_TEXTURE_CREATE_FORMAT_NUMBER, closest_format);
SDL_SetNumberProperty(native_props, SDL_PROP_TEXTURE_CREATE_ACCESS_NUMBER, texture->access);