gl::Error Image11::copyWithoutConversion(const gl::Offset &destOffset,
const gl::Box &sourceArea,
const TextureHelper11 &textureHelper,
UINT sourceSubResource)
{
// No conversion needed-- use copyback fastpath
const TextureHelper11 *stagingTexture = nullptr;
unsigned int stagingSubresourceIndex = 0;
ANGLE_TRY(getStagingTexture(&stagingTexture, &stagingSubresourceIndex));
ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext();
const gl::Extents &extents = textureHelper.getExtents();
D3D11_BOX srcBox;
srcBox.left = sourceArea.x;
srcBox.right = sourceArea.x + sourceArea.width;
srcBox.top = sourceArea.y;
srcBox.bottom = sourceArea.y + sourceArea.height;
srcBox.front = sourceArea.z;
srcBox.back = sourceArea.z + sourceArea.depth;
if (textureHelper.is2D() && textureHelper.getSampleCount() > 1)
{
D3D11_TEXTURE2D_DESC resolveDesc;
resolveDesc.Width = extents.width;
resolveDesc.Height = extents.height;
resolveDesc.MipLevels = 1;
resolveDesc.ArraySize = 1;
resolveDesc.Format = textureHelper.getFormat();
resolveDesc.SampleDesc.Count = 1;
resolveDesc.SampleDesc.Quality = 0;
resolveDesc.Usage = D3D11_USAGE_DEFAULT;
resolveDesc.BindFlags = 0;
resolveDesc.CPUAccessFlags = 0;
resolveDesc.MiscFlags = 0;
d3d11::Texture2D resolveTex;
ANGLE_TRY(mRenderer->allocateResource(resolveDesc, &resolveTex));
deviceContext->ResolveSubresource(resolveTex.get(), 0, textureHelper.get(),
sourceSubResource, textureHelper.getFormat());
deviceContext->CopySubresourceRegion(stagingTexture->get(), stagingSubresourceIndex,
destOffset.x, destOffset.y, destOffset.z,
resolveTex.get(), 0, &srcBox);
}
else
{
deviceContext->CopySubresourceRegion(stagingTexture->get(), stagingSubresourceIndex,
destOffset.x, destOffset.y, destOffset.z,
textureHelper.get(), sourceSubResource, &srcBox);
}
mDirty = true;
return gl::NoError();
}
gl::Error Image11::copyWithoutConversion(const gl::Offset &destOffset,
const gl::Box &sourceArea,
const TextureHelper11 &textureHelper,
UINT sourceSubResource)
{
// No conversion needed-- use copyback fastpath
ID3D11Resource *stagingTexture = nullptr;
unsigned int stagingSubresourceIndex = 0;
gl::Error error = getStagingTexture(&stagingTexture, &stagingSubresourceIndex);
if (error.isError())
{
return error;
}
ID3D11Device *device = mRenderer->getDevice();
ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext();
UINT subresourceAfterResolve = sourceSubResource;
ID3D11Resource *srcTex = nullptr;
const gl::Extents &extents = textureHelper.getExtents();
bool needResolve =
(textureHelper.getTextureType() == GL_TEXTURE_2D && textureHelper.getSampleCount() > 1);
if (needResolve)
{
D3D11_TEXTURE2D_DESC resolveDesc;
resolveDesc.Width = extents.width;
resolveDesc.Height = extents.height;
resolveDesc.MipLevels = 1;
resolveDesc.ArraySize = 1;
resolveDesc.Format = textureHelper.getFormat();
resolveDesc.SampleDesc.Count = 1;
resolveDesc.SampleDesc.Quality = 0;
resolveDesc.Usage = D3D11_USAGE_DEFAULT;
resolveDesc.BindFlags = 0;
resolveDesc.CPUAccessFlags = 0;
resolveDesc.MiscFlags = 0;
ID3D11Texture2D *srcTex2D = NULL;
HRESULT result = device->CreateTexture2D(&resolveDesc, NULL, &srcTex2D);
if (FAILED(result))
{
return gl::Error(GL_OUT_OF_MEMORY,
"Failed to create resolve texture for Image11::copy, HRESULT: 0x%X.",
result);
}
srcTex = srcTex2D;
deviceContext->ResolveSubresource(srcTex, 0, textureHelper.getTexture2D(),
sourceSubResource, textureHelper.getFormat());
subresourceAfterResolve = 0;
}
else
{
srcTex = textureHelper.getResource();
}
D3D11_BOX srcBox;
srcBox.left = sourceArea.x;
srcBox.right = sourceArea.x + sourceArea.width;
srcBox.top = sourceArea.y;
srcBox.bottom = sourceArea.y + sourceArea.height;
srcBox.front = sourceArea.z;
srcBox.back = sourceArea.z + sourceArea.depth;
deviceContext->CopySubresourceRegion(stagingTexture, stagingSubresourceIndex, destOffset.x,
destOffset.y, destOffset.z, srcTex,
subresourceAfterResolve, &srcBox);
if (needResolve)
{
SafeRelease(srcTex);
}
mDirty = true;
return gl::Error(GL_NO_ERROR);
}