| // 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_PIPELINELAYOUT_H_ |
| #define DAWNNATIVE_PIPELINELAYOUT_H_ |
| |
| #include "common/Constants.h" |
| #include "dawn_native/Error.h" |
| #include "dawn_native/Forward.h" |
| #include "dawn_native/ObjectBase.h" |
| |
| #include "dawn_native/dawn_platform.h" |
| |
| #include <array> |
| #include <bitset> |
| |
| namespace dawn_native { |
| |
| MaybeError ValidatePipelineLayoutDescriptor(DeviceBase*, |
| const PipelineLayoutDescriptor* descriptor); |
| |
| using BindGroupLayoutArray = std::array<Ref<BindGroupLayoutBase>, kMaxBindGroups>; |
| |
| class PipelineLayoutBase : public ObjectBase { |
| public: |
| PipelineLayoutBase(DeviceBase* device, const PipelineLayoutDescriptor* descriptor); |
| |
| const BindGroupLayoutBase* GetBindGroupLayout(size_t group) const; |
| const std::bitset<kMaxBindGroups> GetBindGroupLayoutsMask() const; |
| |
| // Utility functions to compute inherited bind groups. |
| // Returns the inherited bind groups as a mask. |
| std::bitset<kMaxBindGroups> InheritedGroupsMask(const PipelineLayoutBase* other) const; |
| |
| // Returns the index of the first incompatible bind group in the range |
| // [1, kMaxBindGroups + 1] |
| uint32_t GroupsInheritUpTo(const PipelineLayoutBase* other) const; |
| |
| protected: |
| BindGroupLayoutArray mBindGroupLayouts; |
| std::bitset<kMaxBindGroups> mMask; |
| }; |
| |
| } // namespace dawn_native |
| |
| #endif // DAWNNATIVE_PIPELINELAYOUT_H_ |