void DepthBuffer::CreateDerivedViews( ID3D12Device* Device, DXGI_FORMAT Format )
{
ID3D12Resource* Resource = m_pResource.Get();
D3D12_DEPTH_STENCIL_VIEW_DESC DSVDesc;
DSVDesc.Format = GetDSVFormat( Format );
DSVDesc.ViewDimension = D3D12_DSV_DIMENSION_TEXTURE2D;
DSVDesc.Texture2D.MipSlice = 0;
if (m_DSVHandle[0].ptr == ~0ull)
{
m_DSVHandle[0] = Graphics::g_pDSVDescriptorHeap->Append().GetCPUHandle();
m_DSVHandle[1] = Graphics::g_pDSVDescriptorHeap->Append().GetCPUHandle();
}
DSVDesc.Flags = D3D12_DSV_FLAG_NONE;
Device->CreateDepthStencilView( Resource, &DSVDesc, m_DSVHandle[0] );
DSVDesc.Flags = D3D12_DSV_FLAG_READ_ONLY_DEPTH;
Device->CreateDepthStencilView( Resource, &DSVDesc, m_DSVHandle[1] );
DXGI_FORMAT stencilReadFormat = GetStencilFormat( Format );
if (stencilReadFormat != DXGI_FORMAT_UNKNOWN)
{
if (m_DSVHandle[2].ptr == ~0ull)
{
m_DSVHandle[2] = Graphics::g_pDSVDescriptorHeap->Append().GetCPUHandle();
m_DSVHandle[3] = Graphics::g_pDSVDescriptorHeap->Append().GetCPUHandle();
}
DSVDesc.Flags = D3D12_DSV_FLAG_READ_ONLY_STENCIL;
Device->CreateDepthStencilView( Resource, &DSVDesc, m_DSVHandle[2] );
DSVDesc.Flags = D3D12_DSV_FLAG_READ_ONLY_DEPTH | D3D12_DSV_FLAG_READ_ONLY_STENCIL;
Device->CreateDepthStencilView( Resource, &DSVDesc, m_DSVHandle[3] );
}
else
{
m_DSVHandle[2] = m_DSVHandle[0];
m_DSVHandle[3] = m_DSVHandle[1];
}
if (m_DepthSRVHandle.ptr == ~0ull)
m_DepthSRVHandle = Graphics::g_pCSUDescriptorHeap->Append().GetCPUHandle();
D3D12_SHADER_RESOURCE_VIEW_DESC SRVDesc = {};
SRVDesc.Format = GetDepthFormat( Format );
SRVDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
SRVDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
SRVDesc.Texture2D.MipLevels = 1;
Device->CreateShaderResourceView( Resource, &SRVDesc, m_DepthSRVHandle );
if (stencilReadFormat != DXGI_FORMAT_UNKNOWN)
{
if (m_StencilSRVHandle.ptr == ~0ull)
{
m_StencilSRVHandle = Graphics::g_pCSUDescriptorHeap->Append().GetCPUHandle();
}
SRVDesc.Format = stencilReadFormat;
Device->CreateShaderResourceView( Resource, &SRVDesc, m_StencilSRVHandle );
}
}
void DepthBuffer::CreateDerivedViews(ID3D12Device * pDevice, DXGI_FORMAT format)
{
ID3D12Resource* resource = m_resource.Get();
D3D12_DEPTH_STENCIL_VIEW_DESC dsvDesc = {};
dsvDesc.Format = GetDSVFormat(format);
dsvDesc.ViewDimension = D3D12_DSV_DIMENSION_TEXTURE2D;
dsvDesc.Texture2D.MipSlice = 0;
if (m_hDSV[0].ptr == ~0ull)
{
m_hDSV[0] = graphics::AllocateDescriptor(D3D12_DESCRIPTOR_HEAP_TYPE_DSV);
m_hDSV[1] = graphics::AllocateDescriptor(D3D12_DESCRIPTOR_HEAP_TYPE_DSV);
}
dsvDesc.Flags = D3D12_DSV_FLAG_NONE;
pDevice->CreateDepthStencilView(resource, &dsvDesc, m_hDSV[0]);
dsvDesc.Flags = D3D12_DSV_FLAG_READ_ONLY_DEPTH;
pDevice->CreateDepthStencilView(resource, &dsvDesc, m_hDSV[1]);
DXGI_FORMAT stencilReadFormat = GetStencilFormat(format);
if (stencilReadFormat != DXGI_FORMAT_UNKNOWN)
{
if (m_hDSV[2].ptr == ~0ull)
{
m_hDSV[2] = graphics::AllocateDescriptor(D3D12_DESCRIPTOR_HEAP_TYPE_DSV);
m_hDSV[3] = graphics::AllocateDescriptor(D3D12_DESCRIPTOR_HEAP_TYPE_DSV);
}
dsvDesc.Flags = D3D12_DSV_FLAG_READ_ONLY_STENCIL;
pDevice->CreateDepthStencilView(resource, &dsvDesc, m_hDSV[2]);
dsvDesc.Flags = D3D12_DSV_FLAG_READ_ONLY_DEPTH | D3D12_DSV_FLAG_READ_ONLY_STENCIL;
pDevice->CreateDepthStencilView(resource, &dsvDesc, m_hDSV[3]);
}
else
{
m_hDSV[2] = m_hDSV[0];
m_hDSV[3] = m_hDSV[1];
}
if (m_hDepthSRV.ptr == ~0ull)
{
m_hDepthSRV = graphics::AllocateDescriptor(D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
}
D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
srvDesc.Format = GetDepthFormat(format);
srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
srvDesc.Texture2D.MipLevels = 1;
pDevice->CreateShaderResourceView(resource, &srvDesc, m_hDepthSRV);
if (stencilReadFormat != DXGI_FORMAT_UNKNOWN)
{
if (m_hStencilSRV.ptr == ~0ull)
{
m_hStencilSRV = graphics::AllocateDescriptor(D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
}
srvDesc.Format = stencilReadFormat;
pDevice->CreateShaderResourceView(resource, &srvDesc, m_hStencilSRV);
}
}