| // Copyright 2017 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef DAWNNATIVE_D3D12_PIPELINELAYOUTD3D12_H_ |
| #define DAWNNATIVE_D3D12_PIPELINELAYOUTD3D12_H_ |
| |
| #include "dawn/common/Constants.h" |
| #include "dawn/common/ityp_array.h" |
| #include "dawn/native/BindingInfo.h" |
| #include "dawn/native/PipelineLayout.h" |
| #include "dawn/native/d3d12/d3d12_platform.h" |
| |
| namespace dawn::native::d3d12 { |
| |
| class Device; |
| |
| class PipelineLayout final : public PipelineLayoutBase { |
| public: |
| static ResultOrError<Ref<PipelineLayout>> Create( |
| Device* device, |
| const PipelineLayoutDescriptor* descriptor); |
| |
| uint32_t GetCbvUavSrvRootParameterIndex(BindGroupIndex group) const; |
| uint32_t GetSamplerRootParameterIndex(BindGroupIndex group) const; |
| |
| // Returns the index of the root parameter reserved for a dynamic buffer binding |
| uint32_t GetDynamicRootParameterIndex(BindGroupIndex group, |
| BindingIndex bindingIndex) const; |
| |
| uint32_t GetFirstIndexOffsetRegisterSpace() const; |
| uint32_t GetFirstIndexOffsetShaderRegister() const; |
| uint32_t GetFirstIndexOffsetParameterIndex() const; |
| |
| uint32_t GetNumWorkgroupsRegisterSpace() const; |
| uint32_t GetNumWorkgroupsShaderRegister() const; |
| uint32_t GetNumWorkgroupsParameterIndex() const; |
| |
| uint32_t GetDynamicStorageBufferLengthsRegisterSpace() const; |
| uint32_t GetDynamicStorageBufferLengthsShaderRegister() const; |
| uint32_t GetDynamicStorageBufferLengthsParameterIndex() const; |
| |
| ID3D12RootSignature* GetRootSignature() const; |
| |
| ID3D12CommandSignature* GetDispatchIndirectCommandSignatureWithNumWorkgroups(); |
| |
| struct PerBindGroupDynamicStorageBufferLengthInfo { |
| // First register offset for a bind group's dynamic storage buffer lengths. |
| // This is the index into the array of root constants where this bind group's |
| // lengths start. |
| uint32_t firstRegisterOffset; |
| |
| struct BindingAndRegisterOffset { |
| BindingNumber binding; |
| uint32_t registerOffset; |
| }; |
| // Associative list of (BindingNumber,registerOffset) pairs, which is passed into |
| // the shader to map the BindingPoint(thisGroup, BindingNumber) to the registerOffset |
| // into the root constant array which holds the dynamic storage buffer lengths. |
| std::vector<BindingAndRegisterOffset> bindingAndRegisterOffsets; |
| }; |
| |
| // Flat map from bind group index to the list of (BindingNumber,Register) pairs. |
| // Each pair is used in shader translation to |
| using DynamicStorageBufferLengthInfo = |
| ityp::array<BindGroupIndex, PerBindGroupDynamicStorageBufferLengthInfo, kMaxBindGroups>; |
| |
| const DynamicStorageBufferLengthInfo& GetDynamicStorageBufferLengthInfo() const; |
| |
| private: |
| ~PipelineLayout() override = default; |
| using PipelineLayoutBase::PipelineLayoutBase; |
| MaybeError Initialize(); |
| ityp::array<BindGroupIndex, uint32_t, kMaxBindGroups> mCbvUavSrvRootParameterInfo; |
| ityp::array<BindGroupIndex, uint32_t, kMaxBindGroups> mSamplerRootParameterInfo; |
| ityp::array<BindGroupIndex, |
| ityp::array<BindingIndex, uint32_t, kMaxDynamicBuffersPerPipelineLayout>, |
| kMaxBindGroups> |
| mDynamicRootParameterIndices; |
| DynamicStorageBufferLengthInfo mDynamicStorageBufferLengthInfo; |
| uint32_t mFirstIndexOffsetParameterIndex; |
| uint32_t mNumWorkgroupsParameterIndex; |
| uint32_t mDynamicStorageBufferLengthsParameterIndex; |
| ComPtr<ID3D12RootSignature> mRootSignature; |
| ComPtr<ID3D12CommandSignature> mDispatchIndirectCommandSignatureWithNumWorkgroups; |
| }; |
| |
| } // namespace dawn::native::d3d12 |
| |
| #endif // DAWNNATIVE_D3D12_PIPELINELAYOUTD3D12_H_ |