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Fixed updating NV12 and YV12 textures on the direct3d11 renderer

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Fixes https://github.com/libsdl-org/SDL/issues/9928
This commit is contained in:
Sam Lantinga
2024-05-30 14:19:34 -07:00
parent 8604847214
commit fb2287dd47
1 changed files with 26 additions and 23 deletions
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49
src/render/direct3d11/SDL_render_d3d11.c
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@@ -1626,7 +1626,11 @@ static int D3D11_UpdateTexture(SDL_Renderer *renderer, SDL_Texture *texture,
const Uint8 *Uplane = Yplane + rect->h * Ypitch;
const Uint8 *Vplane = Uplane + ((rect->h + 1) / 2) * UVpitch;
return D3D11_UpdateTextureYUV(renderer, texture, rect, Yplane, Ypitch, Uplane, UVpitch, Vplane, UVpitch);
if (texture->format == SDL_PIXELFORMAT_YV12) {
return D3D11_UpdateTextureYUV(renderer, texture, rect, Yplane, Ypitch, Vplane, UVpitch, Uplane, UVpitch);
} else {
return D3D11_UpdateTextureYUV(renderer, texture, rect, Yplane, Ypitch, Uplane, UVpitch, Vplane, UVpitch);
}
}
#endif
@@ -1653,10 +1657,10 @@ static int D3D11_UpdateTextureYUV(SDL_Renderer *renderer, SDL_Texture *texture,
if (D3D11_UpdateTextureInternal(rendererData, textureData->mainTexture, SDL_BYTESPERPIXEL(texture->format), rect->x, rect->y, rect->w, rect->h, Yplane, Ypitch) < 0) {
return -1;
}
if (D3D11_UpdateTextureInternal(rendererData, textureData->mainTextureU, SDL_BYTESPERPIXEL(texture->format), rect->x / 2, rect->y / 2, rect->w / 2, rect->h / 2, Uplane, Upitch) < 0) {
if (D3D11_UpdateTextureInternal(rendererData, textureData->mainTextureU, SDL_BYTESPERPIXEL(texture->format), rect->x / 2, rect->y / 2, (rect->w + 1) / 2, (rect->h + 1) / 2, Uplane, Upitch) < 0) {
return -1;
}
if (D3D11_UpdateTextureInternal(rendererData, textureData->mainTextureV, SDL_BYTESPERPIXEL(texture->format), rect->x / 2, rect->y / 2, rect->w / 2, rect->h / 2, Vplane, Vpitch) < 0) {
if (D3D11_UpdateTextureInternal(rendererData, textureData->mainTextureV, SDL_BYTESPERPIXEL(texture->format), rect->x / 2, rect->y / 2, (rect->w + 1) / 2, (rect->h + 1) / 2, Vplane, Vpitch) < 0) {
return -1;
}
return 0;
@@ -1693,6 +1697,11 @@ static int D3D11_UpdateTextureNV(SDL_Renderer *renderer, SDL_Texture *texture,
stagingTextureDesc.MiscFlags = 0;
stagingTextureDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
stagingTextureDesc.Usage = D3D11_USAGE_STAGING;
if (stagingTextureDesc.Format == DXGI_FORMAT_NV12 ||
stagingTextureDesc.Format == DXGI_FORMAT_P010) {
stagingTextureDesc.Width = (stagingTextureDesc.Width + 1) & ~1;
stagingTextureDesc.Height = (stagingTextureDesc.Height + 1) & ~1;
}
result = ID3D11Device_CreateTexture2D(rendererData->d3dDevice,
&stagingTextureDesc,
NULL,
@@ -1714,11 +1723,10 @@ static int D3D11_UpdateTextureNV(SDL_Renderer *renderer, SDL_Texture *texture,
}
src = Yplane;
dst = textureMemory.pData;
dst = (Uint8 *)textureMemory.pData;
length = w;
if (length == (UINT)Ypitch && length == textureMemory.RowPitch) {
SDL_memcpy(dst, src, (size_t)length * rect->h);
dst += length * rect->h;
SDL_memcpy(dst, src, (size_t)length * h);
} else {
if (length > (UINT)Ypitch) {
length = Ypitch;
@@ -1733,26 +1741,21 @@ static int D3D11_UpdateTextureNV(SDL_Renderer *renderer, SDL_Texture *texture,
}
}
/* Adjust dimensions for the UV plane */
w = ((w + 1) / 2) * 2;
h = ((h + 1) / 2);
src = UVplane;
length = w;
if (length == (UINT)UVpitch && length == textureMemory.RowPitch) {
SDL_memcpy(dst, src, (size_t)length * h);
h = (h + 1) / 2;
if (stagingTextureDesc.Format == DXGI_FORMAT_P010) {
length = (length + 3) & ~3;
UVpitch = (UVpitch + 3) & ~3;
} else {
if (length > (UINT)UVpitch) {
length = UVpitch;
}
if (length > textureMemory.RowPitch) {
length = textureMemory.RowPitch;
}
for (row = 0; row < h; ++row) {
SDL_memcpy(dst, src, length);
src += UVpitch;
dst += textureMemory.RowPitch;
}
length = (length + 1) & ~1;
UVpitch = (UVpitch + 1) & ~1;
}
dst = (Uint8 *)textureMemory.pData + stagingTextureDesc.Height * textureMemory.RowPitch;
for (row = 0; row < h; ++row) {
SDL_memcpy(dst, src, length);
src += UVpitch;
dst += textureMemory.RowPitch;
}
/* Commit the pixel buffer's changes back to the staging texture: */