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// d3d12-command-buffer.cpp
#include "d3d12-command-buffer.h"
#include "d3d12-transient-heap.h"
namespace gfx
{
namespace d3d12
{
using namespace Slang;
// There are a pair of cyclic references between a `TransientResourceHeap` and
// a `CommandBuffer` created from the heap. We need to break the cycle upon
// the public reference count of a command buffer dropping to 0.
ICommandBufferD3D12* CommandBufferImpl::getInterface(const Guid& guid)
{
if (guid == GfxGUID::IID_ISlangUnknown || guid == GfxGUID::IID_ICommandBuffer ||
guid == GfxGUID::IID_ICommandBufferD3D12)
return static_cast<ICommandBufferD3D12*>(this);
return nullptr;
}
Result CommandBufferImpl::getNativeHandle(InteropHandle* handle)
{
handle->api = InteropHandleAPI::D3D12;
handle->handleValue = (uint64_t)m_cmdList.get();
return SLANG_OK;
}
void CommandBufferImpl::bindDescriptorHeaps()
{
if (!m_descriptorHeapsBound)
{
ID3D12DescriptorHeap* heaps[] = {
m_transientHeap->getCurrentViewHeap().getHeap(),
m_transientHeap->getCurrentSamplerHeap().getHeap(),
};
m_cmdList->SetDescriptorHeaps(SLANG_COUNT_OF(heaps), heaps);
m_descriptorHeapsBound = true;
}
}
void CommandBufferImpl::reinit()
{
invalidateDescriptorHeapBinding();
m_rootShaderObject.init(m_renderer);
}
void CommandBufferImpl::init(
DeviceImpl* renderer,
ID3D12GraphicsCommandList* d3dCommandList,
TransientResourceHeapImpl* transientHeap)
{
m_transientHeap = transientHeap;
m_renderer = renderer;
m_cmdList = d3dCommandList;
reinit();
m_cmdList->QueryInterface<ID3D12GraphicsCommandList6>(m_cmdList6.writeRef());
if (m_cmdList6)
{
m_cmdList4 = m_cmdList6;
m_cmdList1 = m_cmdList6;
return;
}
#if SLANG_GFX_HAS_DXR_SUPPORT
m_cmdList->QueryInterface<ID3D12GraphicsCommandList4>(m_cmdList4.writeRef());
if (m_cmdList4)
{
m_cmdList1 = m_cmdList4;
return;
}
#endif
m_cmdList->QueryInterface<ID3D12GraphicsCommandList1>(m_cmdList1.writeRef());
}
void CommandBufferImpl::encodeResourceCommands(IResourceCommandEncoder** outEncoder)
{
m_resourceCommandEncoder.init(this);
*outEncoder = &m_resourceCommandEncoder;
}
void CommandBufferImpl::encodeRenderCommands(
IRenderPassLayout* renderPass,
IFramebuffer* framebuffer,
IRenderCommandEncoder** outEncoder)
{
m_renderCommandEncoder.init(
m_renderer,
m_transientHeap,
this,
static_cast<RenderPassLayoutImpl*>(renderPass),
static_cast<FramebufferImpl*>(framebuffer));
*outEncoder = &m_renderCommandEncoder;
}
void CommandBufferImpl::encodeComputeCommands(IComputeCommandEncoder** outEncoder)
{
m_computeCommandEncoder.init(m_renderer, m_transientHeap, this);
*outEncoder = &m_computeCommandEncoder;
}
void CommandBufferImpl::encodeRayTracingCommands(IRayTracingCommandEncoder** outEncoder)
{
#if SLANG_GFX_HAS_DXR_SUPPORT
m_rayTracingCommandEncoder.init(this);
*outEncoder = &m_rayTracingCommandEncoder;
#else
*outEncoder = nullptr;
#endif
}
void CommandBufferImpl::close()
{
m_cmdList->Close();
}
} // namespace d3d12
} // namespace gfx
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