ID3D12DescriptorHeap::GetCPUDescriptorHandleForHeapStart method

Gets the CPU descriptor handle that represents the start of the heap.

Syntax


D3D12_CPU_DESCRIPTOR_HANDLE GetCPUDescriptorHandleForHeapStart();

Parameters

This method has no parameters.

Return value

Type: D3D12_CPU_DESCRIPTOR_HANDLE

Returns the CPU descriptor handle that represents the start of the heap.

Examples

The D3D12nBodyGravity sample uses ID3D12DescriptorHeap::GetCPUDescriptorHandleForHeapStart as follows:

C++


D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
srvDesc.Format = DXGI_FORMAT_UNKNOWN;
srvDesc.ViewDimension = D3D12_SRV_DIMENSION_BUFFER;
srvDesc.Buffer.FirstElement = 0;
srvDesc.Buffer.NumElements = ParticleCount;
srvDesc.Buffer.StructureByteStride = sizeof(Particle);
srvDesc.Buffer.Flags = D3D12_BUFFER_SRV_FLAG_NONE;

CD3DX12_CPU_DESCRIPTOR_HANDLE srvHandle0(m_srvUavHeap->GetCPUDescriptorHandleForHeapStart(), SrvParticlePosVelo0 + index, m_srvUavDescriptorSize);
CD3DX12_CPU_DESCRIPTOR_HANDLE srvHandle1(m_srvUavHeap->GetCPUDescriptorHandleForHeapStart(), SrvParticlePosVelo1 + index, m_srvUavDescriptorSize);
m_device->CreateShaderResourceView(m_particleBuffer0[index].Get(), &srvDesc, srvHandle0);
m_device->CreateShaderResourceView(m_particleBuffer1[index].Get(), &srvDesc, srvHandle1);

Refer to the Example Code in the D3D12 Reference.

Requirements

Header	D3D12.h
Library	D3D12.lib
DLL	D3D12.dll