void D3D12Fullscreen::LoadSizeDependentResources()
{
UpdatePostViewAndScissor();
// Create frame resources.
{
CD3DX12_CPU_DESCRIPTOR_HANDLE rtvHandle(m_rtvHeap->GetCPUDescriptorHandleForHeapStart());
// Create a RTV for each frame.
for (UINT n = 0; n < FrameCount; n++)
{
ThrowIfFailed(m_swapChain->GetBuffer(n, IID_PPV_ARGS(&m_renderTargets[n])));
m_device->CreateRenderTargetView(m_renderTargets[n].Get(), nullptr, rtvHandle);
rtvHandle.Offset(1, m_rtvDescriptorSize);
NAME_D3D12_OBJECT_INDEXED(m_renderTargets, n);
}
}
// Update resolutions shown in app title.
UpdateTitle();
// This is where you would create/resize intermediate render targets, depth stencils, or other resources
// dependent on the window size.
}
// Set up appropriate views for the intermediate render target.
void D3D12Fullscreen::LoadSceneResolutionDependentResources()
{
// Update resolutions shown in app title.
UpdateTitle();
// Set up the scene viewport and scissor rect to match the current scene rendering resolution.
{
m_sceneViewport.Width = static_cast<float>(m_resolutionOptions[m_resolutionIndex].Width);
m_sceneViewport.Height = static_cast<float>(m_resolutionOptions[m_resolutionIndex].Height);
m_sceneViewport.MaxDepth = 1.0f;
m_sceneScissorRect.right = static_cast<LONG>(m_resolutionOptions[m_resolutionIndex].Width);
m_sceneScissorRect.bottom = static_cast<LONG>(m_resolutionOptions[m_resolutionIndex].Height);
}
// Update post-process viewport and scissor rectangle.
UpdatePostViewAndScissor();
// Create RTV for the intermediate render target.
{
D3D12_RESOURCE_DESC swapChainDesc = m_renderTargets[m_frameIndex]->GetDesc();
const CD3DX12_CLEAR_VALUE clearValue(swapChainDesc.Format, ClearColor);
const CD3DX12_RESOURCE_DESC renderTargetDesc = CD3DX12_RESOURCE_DESC::Tex2D(
swapChainDesc.Format,
m_resolutionOptions[m_resolutionIndex].Width,
m_resolutionOptions[m_resolutionIndex].Height,
1u, 1u,
swapChainDesc.SampleDesc.Count,
swapChainDesc.SampleDesc.Quality,
D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET,
D3D12_TEXTURE_LAYOUT_UNKNOWN, 0u);
CD3DX12_CPU_DESCRIPTOR_HANDLE rtvHandle(m_rtvHeap->GetCPUDescriptorHandleForHeapStart(), FrameCount, m_rtvDescriptorSize);
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT),
D3D12_HEAP_FLAG_NONE,
&renderTargetDesc,
D3D12_RESOURCE_STATE_RENDER_TARGET,
&clearValue,
IID_PPV_ARGS(&m_intermediateRenderTarget)));
m_device->CreateRenderTargetView(m_intermediateRenderTarget.Get(), nullptr, rtvHandle);
NAME_D3D12_OBJECT(m_intermediateRenderTarget);
}
// Create SRV for the intermediate render target.
m_device->CreateShaderResourceView(m_intermediateRenderTarget.Get(), nullptr, m_cbvSrvHeap->GetCPUDescriptorHandleForHeapStart());
}
