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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkAutoBlitterChoose_DEFINED
#define SkAutoBlitterChoose_DEFINED
#include "SkArenaAlloc.h"
#include "SkBlitter.h"
class SkMatrix;
class SkPaint;
class SkPixmap;
class SkAutoBlitterChoose : SkNoncopyable {
public:
SkAutoBlitterChoose() {
fBlitter = nullptr;
}
SkAutoBlitterChoose(const SkPixmap& dst, const SkMatrix& matrix,
const SkPaint& paint, bool drawCoverage = false) {
fBlitter = SkBlitter::Choose(dst, matrix, paint, &fAlloc, drawCoverage);
}
SkBlitter* operator->() { return fBlitter; }
SkBlitter* get() const { return fBlitter; }
void choose(const SkPixmap& dst, const SkMatrix& matrix,
const SkPaint& paint, bool drawCoverage = false) {
SkASSERT(!fBlitter);
fBlitter = SkBlitter::Choose(dst, matrix, paint, &fAlloc, drawCoverage);
}
private:
// Owned by fAlloc, which will handle the delete.
SkBlitter* fBlitter;
SkSTArenaAlloc<kSkBlitterContextSize> fAlloc;
};
#define SkAutoBlitterChoose(...) SK_REQUIRE_LOCAL_VAR(SkAutoBlitterChoose)
#endif
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