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/*
* Copyright 2021 Google LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef skgpu_graphite_GraphicsPipelineDesc_DEFINED
#define skgpu_graphite_GraphicsPipelineDesc_DEFINED
#include "src/gpu/graphite/Renderer.h"
#include "src/gpu/graphite/UniquePaintParamsID.h"
namespace skgpu::graphite {
/**
* GraphicsPipelineDesc represents the state needed to create a backend specific GraphicsPipeline,
* minus the target-specific properties that can be inferred from the DrawPass and RenderPassTask.
*/
class GraphicsPipelineDesc {
public:
GraphicsPipelineDesc(const RenderStep* renderStep, UniquePaintParamsID paintID)
: fRenderStepID(renderStep->uniqueID())
, fPaintID(paintID) {}
bool operator==(const GraphicsPipelineDesc& that) const {
return fRenderStepID == that.fRenderStepID && fPaintID == that.fPaintID;
}
bool operator!=(const GraphicsPipelineDesc& other) const {
return !(*this == other);
}
// Describes the geometric portion of the pipeline's program and the pipeline's fixed state
// (except for renderpass-level state that will never change between draws).
uint32_t renderStepID() const { return fRenderStepID; }
// UniqueID of the required PaintParams
UniquePaintParamsID paintParamsID() const { return fPaintID; }
private:
// Each RenderStep defines a fixed set of attributes and rasterization state, as well as the
// shader fragments that control the geometry and coverage calculations. The RenderStep's shader
// is combined with the rest of the shader generated from the PaintParams. Because each
// RenderStep is fixed, its pointer can be used as a proxy for everything that it specifies in
// the GraphicsPipeline.
uint32_t fRenderStepID;
UniquePaintParamsID fPaintID;
};
} // namespace skgpu::graphite
#endif // skgpu_graphite_GraphicsPipelineDesc_DEFINED
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