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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 "include/private/base/SkTArray.h"
15 #include "src/gpu/graphite/DrawTypes.h"
16 #include "src/gpu/graphite/GraphicsPipeline.h"
17 #include "src/gpu/graphite/dawn/DawnAsyncWait.h"
18 #include "src/gpu/graphite/dawn/DawnSampler.h"
19 
20 #include "webgpu/webgpu_cpp.h"  // NO_G3_REWRITE
21 
22 class SkUniform;
23 
24 namespace SkSL {
25     class Compiler;
26 }
27 namespace skgpu {
28 struct BlendInfo;
29 }
30 
31 namespace skgpu::graphite {
32 
33 class Attribute;
34 class Context;
35 class GraphicsPipelineDesc;
36 class DawnResourceProvider;
37 class DawnSharedContext;
38 struct DepthStencilSettings;
39 struct RenderPassDesc;
40 class RuntimeEffectDictionary;
41 
42 class DawnGraphicsPipeline final : public GraphicsPipeline {
43 public:
44     inline static constexpr unsigned int kUniformBufferBindGroupIndex = 0;
45     inline static constexpr unsigned int kTextureBindGroupIndex = 1;
46     inline static constexpr unsigned int kBindGroupCount = 2;
47 
48     inline static constexpr unsigned int kIntrinsicUniformBufferIndex = 0;
49     inline static constexpr unsigned int kRenderStepUniformBufferIndex = 1;
50     inline static constexpr unsigned int kPaintUniformBufferIndex = 2;
51     inline static constexpr unsigned int kGradientBufferIndex = 3;
52     inline static constexpr unsigned int kNumUniformBuffers = 4;
53 
54     inline static constexpr unsigned int kVertexBufferIndex = 0;
55     inline static constexpr unsigned int kInstanceBufferIndex = 1;
56     inline static constexpr unsigned int kNumVertexBuffers = 2;
57 
58     static sk_sp<DawnGraphicsPipeline> Make(const DawnSharedContext* sharedContext,
59                                             DawnResourceProvider* resourceProvider,
60                                             const RuntimeEffectDictionary* runtimeDict,
61                                             const UniqueKey& pipelineKey,
62                                             const GraphicsPipelineDesc& pipelineDesc,
63                                             const RenderPassDesc& renderPassDesc,
64                                             SkEnumBitMask<PipelineCreationFlags>,
65                                             uint32_t compilationID);
66 
67     ~DawnGraphicsPipeline() override;
68 
stencilReferenceValue()69     uint32_t stencilReferenceValue() const { return fStencilReferenceValue; }
primitiveType()70     PrimitiveType primitiveType() const { return fPrimitiveType; }
71 
72     const wgpu::RenderPipeline& dawnRenderPipeline() const;
73 
74     using BindGroupLayouts = std::array<wgpu::BindGroupLayout, kBindGroupCount>;
dawnGroupLayouts()75     const BindGroupLayouts& dawnGroupLayouts() const { return fGroupLayouts; }
76 
77 private:
78     struct AsyncPipelineCreation;
79 
80     DawnGraphicsPipeline(const skgpu::graphite::SharedContext* sharedContext,
81                          const PipelineInfo& pipelineInfo,
82                          std::unique_ptr<AsyncPipelineCreation> pipelineCreationInfo,
83                          BindGroupLayouts groupLayouts,
84                          PrimitiveType primitiveType,
85                          uint32_t refValue,
86                          skia_private::TArray<sk_sp<DawnSampler>> immutableSamplers);
87 
88     void freeGpuData() override;
89 
90     std::unique_ptr<AsyncPipelineCreation> fAsyncPipelineCreation;
91     BindGroupLayouts fGroupLayouts;
92     const PrimitiveType fPrimitiveType;
93     const uint32_t fStencilReferenceValue;
94 
95     // Hold a ref to immutable samplers used such that their lifetime is properly managed.
96     const skia_private::TArray<sk_sp<DawnSampler>> fImmutableSamplers;
97 };
98 
99 } // namespace skgpu::graphite
100 
101 #endif // skgpu_graphite_DawnGraphicsPipeline_DEFINED
102