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https://github.com/encounter/dawn-cmake.git
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19b21c5b85
Returning COM for getters needlessly refcounts which wastes CPU cycles in critial sections and floods PIX traces with [Add/Release]Ref. BUG=dawn:212 Change-Id: Ifa853f2d5f78a450fdb7ffb9492f0d08dfbcdd37 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/21364 Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
77 lines
3.1 KiB
C++
77 lines
3.1 KiB
C++
// Copyright 2017 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "dawn_native/d3d12/ComputePipelineD3D12.h"
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#include "common/Assert.h"
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#include "dawn_native/d3d12/DeviceD3D12.h"
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#include "dawn_native/d3d12/PipelineLayoutD3D12.h"
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#include "dawn_native/d3d12/PlatformFunctions.h"
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#include "dawn_native/d3d12/ShaderModuleD3D12.h"
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namespace dawn_native { namespace d3d12 {
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ResultOrError<ComputePipeline*> ComputePipeline::Create(
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Device* device,
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const ComputePipelineDescriptor* descriptor) {
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Ref<ComputePipeline> pipeline = AcquireRef(new ComputePipeline(device, descriptor));
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DAWN_TRY(pipeline->Initialize(descriptor));
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return pipeline.Detach();
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}
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MaybeError ComputePipeline::Initialize(const ComputePipelineDescriptor* descriptor) {
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Device* device = ToBackend(GetDevice());
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uint32_t compileFlags = 0;
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#if defined(_DEBUG)
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// Enable better shader debugging with the graphics debugging tools.
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compileFlags |= D3DCOMPILE_DEBUG | D3DCOMPILE_SKIP_OPTIMIZATION;
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#endif
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// SPRIV-cross does matrix multiplication expecting row major matrices
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compileFlags |= D3DCOMPILE_PACK_MATRIX_ROW_MAJOR;
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ShaderModule* module = ToBackend(descriptor->computeStage.module);
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std::string hlslSource;
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DAWN_TRY_ASSIGN(hlslSource, module->GetHLSLSource(ToBackend(GetLayout())));
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ComPtr<ID3DBlob> compiledShader;
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ComPtr<ID3DBlob> errors;
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const PlatformFunctions* functions = device->GetFunctions();
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if (FAILED(functions->d3dCompile(hlslSource.c_str(), hlslSource.length(), nullptr, nullptr,
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nullptr, descriptor->computeStage.entryPoint, "cs_5_1",
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compileFlags, 0, &compiledShader, &errors))) {
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printf("%s\n", reinterpret_cast<char*>(errors->GetBufferPointer()));
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ASSERT(false);
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}
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D3D12_COMPUTE_PIPELINE_STATE_DESC d3dDesc = {};
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d3dDesc.pRootSignature = ToBackend(GetLayout())->GetRootSignature();
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d3dDesc.CS.pShaderBytecode = compiledShader->GetBufferPointer();
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d3dDesc.CS.BytecodeLength = compiledShader->GetBufferSize();
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device->GetD3D12Device()->CreateComputePipelineState(&d3dDesc,
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IID_PPV_ARGS(&mPipelineState));
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return {};
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}
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ComputePipeline::~ComputePipeline() {
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ToBackend(GetDevice())->ReferenceUntilUnused(mPipelineState);
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}
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ID3D12PipelineState* ComputePipeline::GetPipelineState() const {
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return mPipelineState.Get();
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}
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}} // namespace dawn_native::d3d12
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