72 lines
2.7 KiB
C++
72 lines
2.7 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_D3D12_BINDGROUPLAYOUTD3D12_H_
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#define DAWNNATIVE_D3D12_BINDGROUPLAYOUTD3D12_H_
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#include "dawn_native/BindGroupLayout.h"
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#include "common/SlabAllocator.h"
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#include "common/ityp_stack_vec.h"
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#include "dawn_native/d3d12/d3d12_platform.h"
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namespace dawn_native { namespace d3d12 {
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class BindGroup;
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class CPUDescriptorHeapAllocation;
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class Device;
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class StagingDescriptorAllocator;
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class BindGroupLayout final : public BindGroupLayoutBase {
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public:
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static Ref<BindGroupLayout> Create(Device* device,
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const BindGroupLayoutDescriptor* descriptor);
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ResultOrError<Ref<BindGroup>> AllocateBindGroup(Device* device,
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const BindGroupDescriptor* descriptor);
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void DeallocateBindGroup(BindGroup* bindGroup, CPUDescriptorHeapAllocation* viewAllocation);
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enum DescriptorType {
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CBV,
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UAV,
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SRV,
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Sampler,
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Count,
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};
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ityp::span<BindingIndex, const uint32_t> GetBindingOffsets() const;
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uint32_t GetCbvUavSrvDescriptorTableSize() const;
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uint32_t GetSamplerDescriptorTableSize() const;
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uint32_t GetCbvUavSrvDescriptorCount() const;
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uint32_t GetSamplerDescriptorCount() const;
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const D3D12_DESCRIPTOR_RANGE* GetCbvUavSrvDescriptorRanges() const;
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const D3D12_DESCRIPTOR_RANGE* GetSamplerDescriptorRanges() const;
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private:
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BindGroupLayout(Device* device, const BindGroupLayoutDescriptor* descriptor);
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~BindGroupLayout() override = default;
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ityp::stack_vec<BindingIndex, uint32_t, kMaxOptimalBindingsPerGroup> mBindingOffsets;
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std::array<uint32_t, DescriptorType::Count> mDescriptorCounts;
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D3D12_DESCRIPTOR_RANGE mRanges[DescriptorType::Count];
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SlabAllocator<BindGroup> mBindGroupAllocator;
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StagingDescriptorAllocator* mSamplerAllocator = nullptr;
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StagingDescriptorAllocator* mViewAllocator = nullptr;
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};
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}} // namespace dawn_native::d3d12
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#endif // DAWNNATIVE_D3D12_BINDGROUPLAYOUTD3D12_H_
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