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/*
* Copyright 2022 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_KeyContext_DEFINED
#define skgpu_graphite_KeyContext_DEFINED
#include "include/core/SkImageInfo.h"
#include "include/core/SkM44.h"
#include "include/core/SkMatrix.h"
namespace skgpu::graphite {
class Recorder;
class RuntimeEffectDictionary;
class ShaderCodeDictionary;
// The key context must always be able to provide a valid ShaderCodeDictionary and
// SkRuntimeEffectDictionary. Depending on the calling context it can also supply a
// backend-specific resource providing object (e.g., a Recorder).
class KeyContext {
public:
// Constructor for the pre-compile code path (i.e., no Recorder)
KeyContext(ShaderCodeDictionary* dict,
RuntimeEffectDictionary* rtEffectDict,
const SkColorInfo& dstColorInfo)
: fDictionary(dict)
, fRTEffectDict(rtEffectDict)
, fDstColorInfo(dstColorInfo) {
}
// Constructor for the ExtractPaintData code path (i.e., with a Recorder)
KeyContext(Recorder*, const SkM44& local2Dev, const SkColorInfo&);
KeyContext(const KeyContext&);
Recorder* recorder() const { return fRecorder; }
const SkM44& local2Dev() const { return fLocal2Dev; }
const SkMatrix* localMatrix() const { return fLocalMatrix; }
ShaderCodeDictionary* dict() const { return fDictionary; }
RuntimeEffectDictionary* rtEffectDict() const { return fRTEffectDict; }
const SkColorInfo& dstColorInfo() const { return fDstColorInfo; }
protected:
Recorder* fRecorder = nullptr;
SkM44 fLocal2Dev;
SkMatrix* fLocalMatrix = nullptr;
ShaderCodeDictionary* fDictionary;
RuntimeEffectDictionary* fRTEffectDict;
SkColorInfo fDstColorInfo;
};
class KeyContextWithLocalMatrix : public KeyContext {
public:
KeyContextWithLocalMatrix(const KeyContext& other, const SkMatrix& childLM)
: KeyContext(other) {
if (fLocalMatrix) {
fStorage = SkMatrix::Concat(childLM, *fLocalMatrix);
} else {
fStorage = childLM;
}
fLocalMatrix = &fStorage;
}
private:
KeyContextWithLocalMatrix(const KeyContextWithLocalMatrix&) = delete;
KeyContextWithLocalMatrix& operator=(const KeyContextWithLocalMatrix&) = delete;
SkMatrix fStorage;
};
} // namespace skgpu::graphite
#endif // skgpu_graphite_KeyContext_DEFINED