92 lines
3.2 KiB
C++
92 lines
3.2 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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#ifndef DAWNNATIVE_PIPELINELAYOUT_H_
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#define DAWNNATIVE_PIPELINELAYOUT_H_
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#include "common/Constants.h"
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#include "common/ityp_array.h"
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#include "common/ityp_bitset.h"
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#include "dawn_native/BindingInfo.h"
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#include "dawn_native/CachedObject.h"
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#include "dawn_native/Error.h"
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#include "dawn_native/Forward.h"
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#include "dawn_native/ObjectBase.h"
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#include "dawn_native/dawn_platform.h"
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#include <array>
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#include <bitset>
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namespace dawn_native {
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MaybeError ValidatePipelineLayoutDescriptor(
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DeviceBase*,
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const PipelineLayoutDescriptor* descriptor,
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PipelineCompatibilityToken pipelineCompatibilityToken = PipelineCompatibilityToken(0));
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using BindGroupLayoutArray =
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ityp::array<BindGroupIndex, Ref<BindGroupLayoutBase>, kMaxBindGroups>;
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using BindGroupLayoutMask = ityp::bitset<BindGroupIndex, kMaxBindGroups>;
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struct StageAndDescriptor {
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SingleShaderStage shaderStage;
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ShaderModuleBase* module;
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std::string entryPoint;
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uint32_t constantCount = 0u;
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ConstantEntry const* constants = nullptr;
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};
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class PipelineLayoutBase : public ApiObjectBase, public CachedObject {
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public:
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PipelineLayoutBase(DeviceBase* device, const PipelineLayoutDescriptor* descriptor);
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~PipelineLayoutBase() override;
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static PipelineLayoutBase* MakeError(DeviceBase* device);
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static ResultOrError<Ref<PipelineLayoutBase>> CreateDefault(
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DeviceBase* device,
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std::vector<StageAndDescriptor> stages);
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ObjectType GetType() const override;
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const BindGroupLayoutBase* GetBindGroupLayout(BindGroupIndex group) const;
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BindGroupLayoutBase* GetBindGroupLayout(BindGroupIndex group);
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const BindGroupLayoutMask& GetBindGroupLayoutsMask() const;
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// Utility functions to compute inherited bind groups.
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// Returns the inherited bind groups as a mask.
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BindGroupLayoutMask InheritedGroupsMask(const PipelineLayoutBase* other) const;
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// Returns the index of the first incompatible bind group in the range
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// [0, kMaxBindGroups]
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BindGroupIndex GroupsInheritUpTo(const PipelineLayoutBase* other) const;
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// Functions necessary for the unordered_set<PipelineLayoutBase*>-based cache.
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size_t ComputeContentHash() override;
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struct EqualityFunc {
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bool operator()(const PipelineLayoutBase* a, const PipelineLayoutBase* b) const;
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};
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protected:
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PipelineLayoutBase(DeviceBase* device, ObjectBase::ErrorTag tag);
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BindGroupLayoutArray mBindGroupLayouts;
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BindGroupLayoutMask mMask;
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};
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} // namespace dawn_native
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#endif // DAWNNATIVE_PIPELINELAYOUT_H_
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