/* * Copyright 2006 The Android Open Source Project * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef SkSpriteBlitter_DEFINED #define SkSpriteBlitter_DEFINED #include "include/core/SkPixmap.h" #include "include/core/SkShader.h" #include "src/core/SkBlitter.h" class SkPaint; // SkSpriteBlitter specializes SkBlitter in a way to move large rectangles of pixels around. // Because of this use, the main primitive shifts from blitH style things to the more efficient // blitRect. class SkSpriteBlitter : public SkBlitter { public: SkSpriteBlitter(const SkPixmap& source); virtual void setup(const SkPixmap& dst, int left, int top, const SkPaint&); // blitH, blitAntiH, blitV and blitMask should not be called on an SkSpriteBlitter. void blitH(int x, int y, int width) override; void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]) override; void blitV(int x, int y, int height, SkAlpha alpha) override; void blitMask(const SkMask&, const SkIRect& clip) override; // A SkSpriteBlitter must implement blitRect. void blitRect(int x, int y, int width, int height) override = 0; static SkSpriteBlitter* ChooseL32(const SkPixmap& source, const SkPaint&, SkArenaAlloc*); static SkSpriteBlitter* ChooseL565(const SkPixmap& source, const SkPaint&, SkArenaAlloc*); static SkSpriteBlitter* ChooseLA8(const SkPixmap& source, const SkPaint&, SkArenaAlloc*); protected: SkPixmap fDst; const SkPixmap fSource; int fLeft, fTop; const SkPaint* fPaint; private: typedef SkBlitter INHERITED; }; #endif