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Added SDL_GetTextureDXGIResource() to get the DXGI resource associated with a render texture.

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Also switched the D3D11 and D3D12 renderers to use real NV12 textures for NV12 data.

The combination of these two changes allows us to implement 0-copy video decode and playback for D3D11 in testffmpeg without any access to the renderer internals.
This commit is contained in:
Sam Lantinga 2023-10-10 00:04:45 -07:00
parent a842446f62
commit 2bd478ae65
10 changed files with 336 additions and 265 deletions
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13
src/render/SDL_render.c
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@ -4186,6 +4186,19 @@ void *SDL_GetRenderMetalCommandEncoder(SDL_Renderer *renderer)
return NULL;
}
IDXGIResource *SDL_GetTextureDXGIResource(SDL_Texture *texture)
{
SDL_Renderer *renderer;
CHECK_TEXTURE_MAGIC(texture, NULL);
renderer = texture->renderer;
if (renderer && renderer->GetTextureDXGIResource) {
return renderer->GetTextureDXGIResource(texture);
}
SDL_Unsupported();
return NULL;
}
static SDL_BlendMode SDL_GetShortBlendMode(SDL_BlendMode blendMode)
{
if (blendMode == SDL_BLENDMODE_NONE_FULL) {