IntRect
DeprecatedTextureHostShmemD3D11::GetTileRect(uint32_t aID) const
{
uint32_t maxSize = GetMaxTextureSizeForFeatureLevel(mDevice->GetFeatureLevel());
uint32_t horizontalTiles = GetRequiredTiles(mSize.width, maxSize);
uint32_t verticalTiles = GetRequiredTiles(mSize.height, maxSize);
uint32_t verticalTile = aID / horizontalTiles;
uint32_t horizontalTile = aID % horizontalTiles;
return IntRect(horizontalTile * maxSize,
verticalTile * maxSize,
horizontalTile < (horizontalTiles - 1) ? maxSize : mSize.width % maxSize,
verticalTile < (verticalTiles - 1) ? maxSize : mSize.height % maxSize);
}
void
DeprecatedTextureHostShmemD3D11::UpdateImpl(const SurfaceDescriptor& aImage,
nsIntRegion* aRegion,
nsIntPoint* aOffset)
{
MOZ_ASSERT(aImage.type() == SurfaceDescriptor::TShmem ||
aImage.type() == SurfaceDescriptor::TMemoryImage);
AutoOpenSurface openSurf(OPEN_READ_ONLY, aImage);
nsRefPtr<gfxImageSurface> surf = openSurf.GetAsImage();
gfxIntSize size = surf->GetSize();
uint32_t bpp = 0;
DXGI_FORMAT dxgiFormat;
switch (surf->Format()) {
case gfxImageSurface::ImageFormatRGB24:
mFormat = FORMAT_B8G8R8X8;
dxgiFormat = DXGI_FORMAT_B8G8R8A8_UNORM;
bpp = 4;
break;
case gfxImageSurface::ImageFormatARGB32:
mFormat = FORMAT_B8G8R8A8;
dxgiFormat = DXGI_FORMAT_B8G8R8A8_UNORM;
bpp = 4;
break;
case gfxImageSurface::ImageFormatA8:
mFormat = FORMAT_A8;
dxgiFormat = DXGI_FORMAT_A8_UNORM;
bpp = 1;
break;
}
mSize = IntSize(size.width, size.height);
CD3D11_TEXTURE2D_DESC desc(dxgiFormat, size.width, size.height,
1, 1, D3D11_BIND_SHADER_RESOURCE,
D3D11_USAGE_IMMUTABLE);
int32_t maxSize = GetMaxTextureSizeForFeatureLevel(mDevice->GetFeatureLevel());
if (size.width <= maxSize && size.height <= maxSize) {
D3D11_SUBRESOURCE_DATA initData;
initData.pSysMem = surf->Data();
initData.SysMemPitch = surf->Stride();
mDevice->CreateTexture2D(&desc, &initData, byRef(mTextures[0]));
mIsTiled = false;
} else {
mIsTiled = true;
uint32_t tileCount = GetRequiredTiles(size.width, maxSize) *
GetRequiredTiles(size.height, maxSize);
mTileTextures.resize(tileCount);
for (uint32_t i = 0; i < tileCount; i++) {
IntRect tileRect = GetTileRect(i);
desc.Width = tileRect.width;
desc.Height = tileRect.height;
D3D11_SUBRESOURCE_DATA initData;
initData.pSysMem = surf->Data() +
tileRect.y * surf->Stride() +
tileRect.x * bpp;
initData.SysMemPitch = surf->Stride();
mDevice->CreateTexture2D(&desc, &initData, byRef(mTileTextures[i]));
}
}
}
int32_t
CompositorD3D11::GetMaxTextureSize() const
{
return GetMaxTextureSizeForFeatureLevel(mFeatureLevel);
}
