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// Copyright 2014 Intel Corporation All Rights Reserved
//
// Intel makes no representations about the suitability of this software for any purpose.
// THIS SOFTWARE IS PROVIDED ""AS IS."" INTEL SPECIFICALLY DISCLAIMS ALL WARRANTIES,
// EXPRESS OR IMPLIED, AND ALL LIABILITY, INCLUDING CONSEQUENTIAL AND OTHER INDIRECT DAMAGES,
// FOR THE USE OF THIS SOFTWARE, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY
// RIGHTS, AND INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
// Intel does not assume any responsibility for any errors which may appear in this software
// nor any responsibility to update it.
#pragma once
#include <assert.h>
#include <d3d12.h>
#include <algorithm>
#include <vector>
#define CBUFFER_ALIGN __declspec(align(D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT))
#define WIDE_HELPER_2(x) L##x
#define WIDE_HELPER_1(x) WIDE_HELPER_2(x)
#define W__FILE__ WIDE_HELPER_1(__FILE__)
template<typename T>
inline void SafeRelease(T** p)
{
auto q = *p;
if (q != nullptr) {
q->Release();
*p = nullptr;
}
}
inline HRESULT ThrowIfFailed(HRESULT hr)
{
if (FAILED(hr)) throw;
return hr;
}
template <typename T>
inline T Align(T v, T align)
{
return (v + (align-1)) & ~(align-1);
}
struct ResourceBarrier {
std::vector<D3D12_RESOURCE_BARRIER> mDescs;
void AddTransition(
ID3D12Resource* resource,
D3D12_RESOURCE_STATES stateBefore,
D3D12_RESOURCE_STATES stateAfter,
UINT subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES)
{
D3D12_RESOURCE_BARRIER desc = {};
desc.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
desc.Transition.pResource = resource;
desc.Transition.StateBefore = stateBefore;
desc.Transition.StateAfter = stateAfter;
desc.Transition.Subresource = subresource;
mDescs.push_back(desc);
}
void ReverseTransitions()
{
for (auto ii = mDescs.begin(), ie = mDescs.end(); ii != ie; ++ii) {
if (ii->Type == D3D12_RESOURCE_BARRIER_TYPE_TRANSITION) {
std::swap(ii->Transition.StateBefore, ii->Transition.StateAfter);
}
}
}
void Submit(ID3D12GraphicsCommandList* commandList) const
{
assert(mDescs.size() <= UINT_MAX);
commandList->ResourceBarrier((UINT)mDescs.size(), mDescs.data());
}
};
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