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/*
* Copyright 2018 Google LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrSkSLFPFactoryCache_DEFINED
#define GrSkSLFPFactoryCache_DEFINED
#include "SkRefCnt.h"
#include <vector>
class GrSkSLFPFactory;
// This is a cache used by GrSkSLFP to retain GrSkSLFPFactory instances, so we don't have to
// re-process the SkSL source code every time we create a GrSkSLFP instance.
// For thread safety, it is important that GrSkSLFP only interact with the cache from methods that
// are only called from within the rendering thread, like onCreateGLSLInstance and
// onGetGLSLProcessorKey.
class GrSkSLFPFactoryCache : public SkNVRefCnt<GrSkSLFPFactoryCache> {
public:
// Returns a factory by its numeric index, or null if no such factory exists. Indices are
// allocated by GrSkSLFP::NewIndex().
sk_sp<GrSkSLFPFactory> get(int index);
// Stores a new factory with the given index.
void set(int index, sk_sp<GrSkSLFPFactory> factory);
~GrSkSLFPFactoryCache();
private:
std::vector<GrSkSLFPFactory*> fFactories;
};
#endif
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