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1 /*
2  * Copyright 2022 Google LLC
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #ifndef skgpu_graphite_DawnGraphicsPipeline_DEFINED
9 #define skgpu_graphite_DawnGraphicsPipeline_DEFINED
10 
11 #include "include/core/SkRefCnt.h"
12 #include "include/core/SkSpan.h"
13 #include "include/ports/SkCFObject.h"
14 #include "src/gpu/graphite/DrawTypes.h"
15 #include "src/gpu/graphite/GraphicsPipeline.h"
16 #include "src/gpu/graphite/dawn/DawnAsyncWait.h"
17 
18 #include "webgpu/webgpu_cpp.h"  // NO_G3_REWRITE
19 
20 class SkUniform;
21 
22 namespace SkSL {
23     class Compiler;
24 }
25 namespace skgpu {
26 struct BlendInfo;
27 }
28 
29 namespace skgpu::graphite {
30 
31 class Attribute;
32 class Context;
33 class GraphicsPipelineDesc;
34 class DawnResourceProvider;
35 class DawnSharedContext;
36 struct DepthStencilSettings;
37 struct RenderPassDesc;
38 class RuntimeEffectDictionary;
39 
40 class DawnGraphicsPipeline final : public GraphicsPipeline {
41 public:
42     inline static constexpr unsigned int kUniformBufferBindGroupIndex = 0;
43     inline static constexpr unsigned int kTextureBindGroupIndex = 1;
44     inline static constexpr unsigned int kBindGroupCount = 2;
45 
46     inline static constexpr unsigned int kIntrinsicUniformBufferIndex = 0;
47     inline static constexpr unsigned int kRenderStepUniformBufferIndex = 1;
48     inline static constexpr unsigned int kPaintUniformBufferIndex = 2;
49     inline static constexpr unsigned int kGradientBufferIndex = 3;
50     inline static constexpr unsigned int kNumUniformBuffers = 4;
51 
52     inline static constexpr unsigned int kVertexBufferIndex = 0;
53     inline static constexpr unsigned int kInstanceBufferIndex = 1;
54     inline static constexpr unsigned int kNumVertexBuffers = 2;
55 
56     static sk_sp<DawnGraphicsPipeline> Make(const DawnSharedContext* sharedContext,
57                                             DawnResourceProvider* resourceProvider,
58                                             const RuntimeEffectDictionary* runtimeDict,
59                                             const GraphicsPipelineDesc& pipelineDesc,
60                                             const RenderPassDesc& renderPassDesc);
61 
62     ~DawnGraphicsPipeline() override;
63 
stencilReferenceValue()64     uint32_t stencilReferenceValue() const { return fStencilReferenceValue; }
primitiveType()65     PrimitiveType primitiveType() const { return fPrimitiveType; }
hasStepUniforms()66     bool hasStepUniforms() const { return fHasStepUniforms; }
hasPaintUniforms()67     bool hasPaintUniforms() const { return fHasPaintUniforms; }
hasGradientBuffer()68     bool hasGradientBuffer() const { return fHasGradientBuffer; }
numTexturesAndSamplers()69     int numTexturesAndSamplers() const { return fNumFragmentTexturesAndSamplers; }
70     const wgpu::RenderPipeline& dawnRenderPipeline() const;
71 
72     using BindGroupLayouts = std::array<wgpu::BindGroupLayout, kBindGroupCount>;
dawnGroupLayouts()73     const BindGroupLayouts& dawnGroupLayouts() const { return fGroupLayouts; }
74 
75 private:
76     struct AsyncPipelineCreation;
77 
78     DawnGraphicsPipeline(const skgpu::graphite::SharedContext* sharedContext,
79                          PipelineInfo* pipelineInfo,
80                          std::unique_ptr<AsyncPipelineCreation> pipelineCreationInfo,
81                          BindGroupLayouts groupLayouts,
82                          PrimitiveType primitiveType,
83                          uint32_t refValue,
84                          bool hasStepUniforms,
85                          bool hasPaintUniforms,
86                          bool hasGradientBuffer,
87                          int numFragmentTexturesAndSamplers);
88 
89     void freeGpuData() override;
90 
91     std::unique_ptr<AsyncPipelineCreation> fAsyncPipelineCreation;
92     BindGroupLayouts fGroupLayouts;
93     const PrimitiveType fPrimitiveType;
94     const uint32_t fStencilReferenceValue;
95     const bool fHasStepUniforms;
96     const bool fHasPaintUniforms;
97     const bool fHasGradientBuffer;
98     const int fNumFragmentTexturesAndSamplers;
99 };
100 
101 } // namespace skgpu::graphite
102 
103 #endif // skgpu_graphite_DawnGraphicsPipeline_DEFINED
104