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/* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited. */
#include <NvCoDx12HelperUtil.h>
#include <external/D3D12/include/d3dx12.h>
#include "bufferD3D12.h"
#include <vector>
namespace FlexSample {
int IndexBufferD3D12::init(const RenderStateD3D12& state, int stride, ptrdiff_t numIndices, const void* sysMem)
{
assert(sysMem);
assert(stride == 4);
const size_t bufferSize = stride * numIndices;
{
ComPtr<ID3D12Resource> resource;
CD3DX12_HEAP_PROPERTIES defaultHeapProps(D3D12_HEAP_TYPE_DEFAULT);
D3D12_RESOURCE_DESC resourceDesc(CD3DX12_RESOURCE_DESC::Buffer(bufferSize));
if (sysMem)
{
NV_RETURN_ON_FAIL(state.m_device->CreateCommittedResource(&defaultHeapProps, D3D12_HEAP_FLAG_NONE, &resourceDesc, D3D12_RESOURCE_STATE_COPY_DEST, nullptr,
IID_PPV_ARGS(&resource)));
NV_RETURN_ON_FAIL(state.m_scopeManager->upload(state.m_commandList, sysMem, resource.Get(), D3D12_RESOURCE_STATE_COMMON));
}
else
{
NV_RETURN_ON_FAIL(state.m_device->CreateCommittedResource(&defaultHeapProps, D3D12_HEAP_FLAG_NONE, &resourceDesc, D3D12_RESOURCE_STATE_COMMON, nullptr,
IID_PPV_ARGS(&resource)));
}
setResource(resource.Get(), D3D12_RESOURCE_STATE_COMMON);
}
memset(&m_indexBufferView, 0, sizeof(m_indexBufferView));
m_indexBufferView.BufferLocation = m_resource->GetGPUVirtualAddress();
m_indexBufferView.SizeInBytes = UINT(bufferSize);
m_indexBufferView.Format = DXGI_FORMAT_R32_UINT;
return NV_OK;
}
int VertexBufferD3D12::init(const RenderStateD3D12& state, int stride, ptrdiff_t numElements, const void* sysMem, D3D12_RESOURCE_FLAGS resourceFlags)
{
if (!sysMem)
{
memset(&m_vertexBufferView, 0, sizeof(m_vertexBufferView));
return NV_OK;
}
size_t bufferSize = size_t(numElements * stride);
{
CD3DX12_HEAP_PROPERTIES defaultHeapProps(D3D12_HEAP_TYPE_DEFAULT);
D3D12_RESOURCE_DESC resourceDesc(CD3DX12_RESOURCE_DESC::Buffer(bufferSize, resourceFlags));
ComPtr<ID3D12Resource> resource;
if (sysMem)
{
NV_RETURN_ON_FAIL(state.m_device->CreateCommittedResource(&defaultHeapProps, D3D12_HEAP_FLAG_NONE, &resourceDesc, D3D12_RESOURCE_STATE_COPY_DEST, nullptr,
IID_PPV_ARGS(&resource)));
NV_RETURN_ON_FAIL(state.m_scopeManager->upload(state.m_commandList, sysMem, resource.Get(), D3D12_RESOURCE_STATE_COMMON));
}
else
{
NV_RETURN_ON_FAIL(state.m_device->CreateCommittedResource(&defaultHeapProps, D3D12_HEAP_FLAG_NONE, &resourceDesc, D3D12_RESOURCE_STATE_COMMON, nullptr,
IID_PPV_ARGS(&resource)));
}
setResource(resource.Get(), D3D12_RESOURCE_STATE_COMMON);
}
{
memset(&m_vertexBufferView, 0, sizeof(m_vertexBufferView));
m_vertexBufferView.BufferLocation = m_resource->GetGPUVirtualAddress();
m_vertexBufferView.SizeInBytes = UINT(bufferSize);
m_vertexBufferView.StrideInBytes = stride;
}
return NV_OK;
}
int VertexBufferD3D12::init(const RenderStateD3D12& state, int srcStride, int dstStride, ptrdiff_t numElements, const void* sysMem, D3D12_RESOURCE_FLAGS resourceFlags)
{
if (srcStride == dstStride || sysMem == nullptr)
{
return init(state, dstStride, numElements, sysMem, resourceFlags);
}
else
{
if (srcStride == 4 * 4 && dstStride == 4 * 3)
{
std::vector<uint32_t> buf(numElements * 3);
uint32_t* dst = &buf.front();
const uint32_t* src = (const uint32_t*)sysMem;
for (ptrdiff_t i = 0; i < numElements; i++, dst += 3, src += 4)
{
dst[0] = src[0];
dst[1] = src[1];
dst[2] = src[2];
}
return init(state, dstStride, numElements, &buf.front(), resourceFlags);
}
}
assert(!"Unhandled conversion");
return NV_FAIL;
}
} // namespace FlexSample
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