void TextureManager::ProcessGeneration(GenerateTextureInfo &generationInfo, RenderPassDescriptorHeap *srvHeap)
{
ComputeContext *computeContext = mDirect3DManager->GetContextManager()->GetComputeContext();
computeContext->SetDescriptorHeap(D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV, srvHeap->GetHeap());
computeContext->SetPipelineState(generationInfo.GenerationShader);
computeContext->SetRootSignature(generationInfo.GenerationShader->GetRootSignature());
DescriptorHeapHandle generateTargetHandle = srvHeap->GetHeapHandleBlock(1);
mDirect3DManager->GetDevice()->CopyDescriptorsSimple(1, generateTargetHandle.GetCPUHandle(), generationInfo.GenerateTarget->GetUnorderedAccessViewHandle().GetCPUHandle(), D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
computeContext->SetDescriptorTable(0, generateTargetHandle.GetGPUHandle());
computeContext->Dispatch(generationInfo.GenerateTarget->GetWidth() / 8, generationInfo.GenerateTarget->GetHeight() / 8, 1);
generationInfo.GenerationFence = computeContext->Flush(mDirect3DManager->GetContextManager()->GetQueueManager());
}
void TextureManager::ProcessCubeMapFiltering(CubeMapFilterInfo &cubeMapFilterInfo, RenderPassDescriptorHeap *srvHeap, RenderPassDescriptorHeap *samplerHeap)
{
Application::Assert(cubeMapFilterInfo.CubeMapToFilter->GetIsReady());
Vector4 targets[6] =
{
Vector4(1.0f, 0.0f, 0.0f, 0.0f), // +X
Vector4(-1.0f, 0.0f, 0.0f, 0.0f), // -X
Vector4(0.0f, 1.0f, 0.0f, 0.0f), // +Y
Vector4(0.0f, -1.0f, 0.0f, 0.0f), // -Y
Vector4(0.0f, 0.0f, 1.0f, 0.0f), // +Z
Vector4(0.0f, 0.0f, -1.0f, 0.0f) // -Z
};
Vector4 ups[6] =
{
Vector4(0.0f, 1.0f, 0.0f, 0.0f), // +X
Vector4(0.0f, 1.0f, 0.0f, 0.0f), // -X
Vector4(0.0f, 0.0f, -1.0f, 0.0f), // +Y
Vector4(0.0f, 0.0f, 1.0f, 0.0f), // -Y
Vector4(0.0f, 1.0f, 0.0f, 0.0f), // +Z
Vector4(0.0f, 1.0f, 0.0f, 0.0f) // -Z
};
ComputeContext *computeContext = mDirect3DManager->GetContextManager()->GetComputeContext();
computeContext->SetDescriptorHeap(D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV, srvHeap->GetHeap());
computeContext->SetDescriptorHeap(D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER, samplerHeap->GetHeap());
computeContext->SetPipelineState(cubeMapFilterInfo.EnvironmentFilterShader);
computeContext->SetRootSignature(cubeMapFilterInfo.EnvironmentFilterShader->GetRootSignature());
DescriptorHeapHandle envMapHandle = srvHeap->GetHeapHandleBlock(1);
DescriptorHeapHandle envMapSamplerHandle = samplerHeap->GetHeapHandleBlock(1);
mDirect3DManager->GetDevice()->CopyDescriptorsSimple(1, envMapHandle.GetCPUHandle(), cubeMapFilterInfo.CubeMapToFilter->GetTextureResource()->GetShaderResourceViewHandle().GetCPUHandle(), D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
mDirect3DManager->GetDevice()->CopyDescriptorsSimple(1, envMapSamplerHandle.GetCPUHandle(), cubeMapFilterInfo.EnvironmentSampler->GetSamplerHandle().GetCPUHandle(), D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER);
computeContext->SetDescriptorTable(0, envMapHandle.GetGPUHandle());
computeContext->SetDescriptorTable(1, envMapSamplerHandle.GetGPUHandle());
EnvironmentMapFilterTextureBuffer filterInfo;
filterInfo.mipCount = (float)cubeMapFilterInfo.NumMips;
for (uint32 cubeSideIndex = 0; cubeSideIndex < 6; cubeSideIndex++)
{
filterInfo.forwardDir = targets[cubeSideIndex];
filterInfo.upDir = ups[cubeSideIndex];
filterInfo.sourceDimensions = Vector2((float)cubeMapFilterInfo.DimensionSize, (float)cubeMapFilterInfo.DimensionSize);
for (uint32 mipIndex = 0; mipIndex < cubeMapFilterInfo.NumMips; mipIndex++)
{
filterInfo.mipLevel = (float)(cubeMapFilterInfo.NumMips - mipIndex);
DescriptorHeapHandle filterTargetHandle = srvHeap->GetHeapHandleBlock(1);
mDirect3DManager->GetDevice()->CopyDescriptorsSimple(1, filterTargetHandle.GetCPUHandle(), cubeMapFilterInfo.FilterTarget->GetUnorderedAccessViewHandle(mipIndex, cubeSideIndex).GetCPUHandle(), D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
computeContext->SetDescriptorTable(2, filterTargetHandle.GetGPUHandle());
computeContext->SetConstants(3, 12, &filterInfo);
computeContext->Dispatch((uint32)filterInfo.sourceDimensions.X / 8, (uint32)filterInfo.sourceDimensions.Y / 8, 1);
filterInfo.sourceDimensions = Vector2(filterInfo.sourceDimensions.X / 2, filterInfo.sourceDimensions.Y / 2);
}
}
cubeMapFilterInfo.FilterTarget->SetComputeFence(computeContext->Flush(mDirect3DManager->GetContextManager()->GetQueueManager()));
}
