148 lines
5.8 KiB
C++
148 lines
5.8 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 SRC_DAWN_NATIVE_RENDERPIPELINE_H_
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#define SRC_DAWN_NATIVE_RENDERPIPELINE_H_
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#include <array>
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#include <bitset>
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#include "dawn/common/TypedInteger.h"
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#include "dawn/native/AttachmentState.h"
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#include "dawn/native/Forward.h"
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#include "dawn/native/IntegerTypes.h"
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#include "dawn/native/Pipeline.h"
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#include "dawn/native/dawn_platform.h"
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namespace dawn::native {
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class DeviceBase;
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MaybeError ValidateRenderPipelineDescriptor(DeviceBase* device,
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const RenderPipelineDescriptor* descriptor);
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std::vector<StageAndDescriptor> GetRenderStagesAndSetPlaceholderShader(
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DeviceBase* device,
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const RenderPipelineDescriptor* descriptor);
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size_t IndexFormatSize(wgpu::IndexFormat format);
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bool IsStripPrimitiveTopology(wgpu::PrimitiveTopology primitiveTopology);
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bool StencilTestEnabled(const DepthStencilState* depthStencil);
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struct VertexAttributeInfo {
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wgpu::VertexFormat format;
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uint64_t offset;
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VertexAttributeLocation shaderLocation;
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VertexBufferSlot vertexBufferSlot;
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};
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struct VertexBufferInfo {
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uint64_t arrayStride;
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wgpu::VertexStepMode stepMode;
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uint16_t usedBytesInStride;
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// As indicated in the spec, the lastStride is max(attribute.offset +
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// sizeof(attribute.format)) for each attribute in the buffer[slot]
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uint64_t lastStride;
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};
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class RenderPipelineBase : public PipelineBase {
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public:
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RenderPipelineBase(DeviceBase* device, const RenderPipelineDescriptor* descriptor);
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~RenderPipelineBase() override;
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static RenderPipelineBase* MakeError(DeviceBase* device);
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ObjectType GetType() const override;
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const ityp::bitset<VertexAttributeLocation, kMaxVertexAttributes>&
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GetAttributeLocationsUsed() const;
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const VertexAttributeInfo& GetAttribute(VertexAttributeLocation location) const;
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const ityp::bitset<VertexBufferSlot, kMaxVertexBuffers>& GetVertexBufferSlotsUsed() const;
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const ityp::bitset<VertexBufferSlot, kMaxVertexBuffers>&
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GetVertexBufferSlotsUsedAsVertexBuffer() const;
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const ityp::bitset<VertexBufferSlot, kMaxVertexBuffers>&
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GetVertexBufferSlotsUsedAsInstanceBuffer() const;
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const VertexBufferInfo& GetVertexBuffer(VertexBufferSlot slot) const;
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uint32_t GetVertexBufferCount() const;
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const ColorTargetState* GetColorTargetState(ColorAttachmentIndex attachmentSlot) const;
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const DepthStencilState* GetDepthStencilState() const;
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wgpu::PrimitiveTopology GetPrimitiveTopology() const;
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wgpu::IndexFormat GetStripIndexFormat() const;
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wgpu::CullMode GetCullMode() const;
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wgpu::FrontFace GetFrontFace() const;
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bool IsDepthBiasEnabled() const;
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int32_t GetDepthBias() const;
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float GetDepthBiasSlopeScale() const;
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float GetDepthBiasClamp() const;
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bool ShouldClampDepth() const;
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ityp::bitset<ColorAttachmentIndex, kMaxColorAttachments> GetColorAttachmentsMask() const;
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bool HasDepthStencilAttachment() const;
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wgpu::TextureFormat GetColorAttachmentFormat(ColorAttachmentIndex attachment) const;
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wgpu::TextureFormat GetDepthStencilFormat() const;
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uint32_t GetSampleCount() const;
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uint32_t GetSampleMask() const;
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bool IsAlphaToCoverageEnabled() const;
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bool WritesDepth() const;
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bool WritesStencil() const;
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const AttachmentState* GetAttachmentState() const;
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// Functions necessary for the unordered_set<RenderPipelineBase*>-based cache.
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size_t ComputeContentHash() override;
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struct EqualityFunc {
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bool operator()(const RenderPipelineBase* a, const RenderPipelineBase* b) const;
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};
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protected:
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// Constructor used only for mocking and testing.
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explicit RenderPipelineBase(DeviceBase* device);
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void DestroyImpl() override;
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private:
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RenderPipelineBase(DeviceBase* device, ObjectBase::ErrorTag tag);
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// Vertex state
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uint32_t mVertexBufferCount;
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ityp::bitset<VertexAttributeLocation, kMaxVertexAttributes> mAttributeLocationsUsed;
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ityp::array<VertexAttributeLocation, VertexAttributeInfo, kMaxVertexAttributes>
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mAttributeInfos;
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ityp::bitset<VertexBufferSlot, kMaxVertexBuffers> mVertexBufferSlotsUsed;
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ityp::bitset<VertexBufferSlot, kMaxVertexBuffers> mVertexBufferSlotsUsedAsVertexBuffer;
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ityp::bitset<VertexBufferSlot, kMaxVertexBuffers> mVertexBufferSlotsUsedAsInstanceBuffer;
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ityp::array<VertexBufferSlot, VertexBufferInfo, kMaxVertexBuffers> mVertexBufferInfos;
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// Attachments
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Ref<AttachmentState> mAttachmentState;
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ityp::array<ColorAttachmentIndex, ColorTargetState, kMaxColorAttachments> mTargets;
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ityp::array<ColorAttachmentIndex, BlendState, kMaxColorAttachments> mTargetBlend;
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// Other state
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PrimitiveState mPrimitive;
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DepthStencilState mDepthStencil;
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MultisampleState mMultisample;
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bool mClampDepth = false;
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bool mWritesDepth = false;
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bool mWritesStencil = false;
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};
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} // namespace dawn::native
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#endif // SRC_DAWN_NATIVE_RENDERPIPELINE_H_
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