michael@0: /* michael@0: * Copyright 2006 The Android Open Source Project michael@0: * michael@0: * Use of this source code is governed by a BSD-style license that can be michael@0: * found in the LICENSE file. michael@0: */ michael@0: michael@0: #ifndef SkCoreBlitters_DEFINED michael@0: #define SkCoreBlitters_DEFINED michael@0: michael@0: #include "SkBitmapProcShader.h" michael@0: #include "SkBlitter.h" michael@0: #include "SkBlitRow.h" michael@0: #include "SkShader.h" michael@0: #include "SkSmallAllocator.h" michael@0: michael@0: class SkRasterBlitter : public SkBlitter { michael@0: public: michael@0: SkRasterBlitter(const SkBitmap& device) : fDevice(device) {} michael@0: michael@0: protected: michael@0: const SkBitmap& fDevice; michael@0: michael@0: private: michael@0: typedef SkBlitter INHERITED; michael@0: }; michael@0: michael@0: class SkShaderBlitter : public SkRasterBlitter { michael@0: public: michael@0: SkShaderBlitter(const SkBitmap& device, const SkPaint& paint); michael@0: virtual ~SkShaderBlitter(); michael@0: michael@0: protected: michael@0: uint32_t fShaderFlags; michael@0: SkShader* fShader; michael@0: michael@0: private: michael@0: // illegal michael@0: SkShaderBlitter& operator=(const SkShaderBlitter&); michael@0: michael@0: typedef SkRasterBlitter INHERITED; michael@0: }; michael@0: michael@0: /////////////////////////////////////////////////////////////////////////////// michael@0: michael@0: class SkA8_Coverage_Blitter : public SkRasterBlitter { michael@0: public: michael@0: SkA8_Coverage_Blitter(const SkBitmap& device, const SkPaint& paint); michael@0: virtual void blitH(int x, int y, int width) SK_OVERRIDE; michael@0: virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]) SK_OVERRIDE; michael@0: virtual void blitV(int x, int y, int height, SkAlpha alpha) SK_OVERRIDE; michael@0: virtual void blitRect(int x, int y, int width, int height) SK_OVERRIDE; michael@0: virtual void blitMask(const SkMask&, const SkIRect&) SK_OVERRIDE; michael@0: virtual const SkBitmap* justAnOpaqueColor(uint32_t*) SK_OVERRIDE; michael@0: }; michael@0: michael@0: class SkA8_Blitter : public SkRasterBlitter { michael@0: public: michael@0: SkA8_Blitter(const SkBitmap& device, const SkPaint& paint); michael@0: virtual void blitH(int x, int y, int width); michael@0: virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]); michael@0: virtual void blitV(int x, int y, int height, SkAlpha alpha); michael@0: virtual void blitRect(int x, int y, int width, int height); michael@0: virtual void blitMask(const SkMask&, const SkIRect&); michael@0: virtual const SkBitmap* justAnOpaqueColor(uint32_t*); michael@0: michael@0: private: michael@0: unsigned fSrcA; michael@0: michael@0: // illegal michael@0: SkA8_Blitter& operator=(const SkA8_Blitter&); michael@0: michael@0: typedef SkRasterBlitter INHERITED; michael@0: }; michael@0: michael@0: class SkA8_Shader_Blitter : public SkShaderBlitter { michael@0: public: michael@0: SkA8_Shader_Blitter(const SkBitmap& device, const SkPaint& paint); michael@0: virtual ~SkA8_Shader_Blitter(); michael@0: virtual void blitH(int x, int y, int width); michael@0: virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]); michael@0: virtual void blitMask(const SkMask&, const SkIRect&); michael@0: michael@0: private: michael@0: SkXfermode* fXfermode; michael@0: SkPMColor* fBuffer; michael@0: uint8_t* fAAExpand; michael@0: michael@0: // illegal michael@0: SkA8_Shader_Blitter& operator=(const SkA8_Shader_Blitter&); michael@0: michael@0: typedef SkShaderBlitter INHERITED; michael@0: }; michael@0: michael@0: //////////////////////////////////////////////////////////////// michael@0: michael@0: class SkARGB32_Blitter : public SkRasterBlitter { michael@0: public: michael@0: SkARGB32_Blitter(const SkBitmap& device, const SkPaint& paint); michael@0: virtual void blitH(int x, int y, int width); michael@0: virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]); michael@0: virtual void blitV(int x, int y, int height, SkAlpha alpha); michael@0: virtual void blitRect(int x, int y, int width, int height); michael@0: virtual void blitMask(const SkMask&, const SkIRect&); michael@0: virtual const SkBitmap* justAnOpaqueColor(uint32_t*); michael@0: michael@0: protected: michael@0: SkColor fColor; michael@0: SkPMColor fPMColor; michael@0: SkBlitRow::ColorProc fColor32Proc; michael@0: SkBlitRow::ColorRectProc fColorRect32Proc; michael@0: michael@0: private: michael@0: unsigned fSrcA, fSrcR, fSrcG, fSrcB; michael@0: michael@0: // illegal michael@0: SkARGB32_Blitter& operator=(const SkARGB32_Blitter&); michael@0: michael@0: typedef SkRasterBlitter INHERITED; michael@0: }; michael@0: michael@0: class SkARGB32_Opaque_Blitter : public SkARGB32_Blitter { michael@0: public: michael@0: SkARGB32_Opaque_Blitter(const SkBitmap& device, const SkPaint& paint) michael@0: : INHERITED(device, paint) { SkASSERT(paint.getAlpha() == 0xFF); } michael@0: virtual void blitMask(const SkMask&, const SkIRect&); michael@0: michael@0: private: michael@0: typedef SkARGB32_Blitter INHERITED; michael@0: }; michael@0: michael@0: class SkARGB32_Black_Blitter : public SkARGB32_Opaque_Blitter { michael@0: public: michael@0: SkARGB32_Black_Blitter(const SkBitmap& device, const SkPaint& paint) michael@0: : INHERITED(device, paint) {} michael@0: virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]); michael@0: michael@0: private: michael@0: typedef SkARGB32_Opaque_Blitter INHERITED; michael@0: }; michael@0: michael@0: class SkARGB32_Shader_Blitter : public SkShaderBlitter { michael@0: public: michael@0: SkARGB32_Shader_Blitter(const SkBitmap& device, const SkPaint& paint); michael@0: virtual ~SkARGB32_Shader_Blitter(); michael@0: virtual void blitH(int x, int y, int width) SK_OVERRIDE; michael@0: virtual void blitV(int x, int y, int height, SkAlpha alpha) SK_OVERRIDE; michael@0: virtual void blitRect(int x, int y, int width, int height) SK_OVERRIDE; michael@0: virtual void blitAntiH(int x, int y, const SkAlpha[], const int16_t[]) SK_OVERRIDE; michael@0: virtual void blitMask(const SkMask&, const SkIRect&) SK_OVERRIDE; michael@0: michael@0: private: michael@0: SkXfermode* fXfermode; michael@0: SkPMColor* fBuffer; michael@0: SkBlitRow::Proc32 fProc32; michael@0: SkBlitRow::Proc32 fProc32Blend; michael@0: bool fShadeDirectlyIntoDevice; michael@0: bool fConstInY; michael@0: michael@0: // illegal michael@0: SkARGB32_Shader_Blitter& operator=(const SkARGB32_Shader_Blitter&); michael@0: michael@0: typedef SkShaderBlitter INHERITED; michael@0: }; michael@0: michael@0: /////////////////////////////////////////////////////////////////////////////// michael@0: michael@0: /* These return the correct subclass of blitter for their device config. michael@0: michael@0: Currently, they make the following assumptions about the state of the michael@0: paint: michael@0: michael@0: 1. If there is an xfermode, there will also be a shader michael@0: 2. If there is a colorfilter, there will be a shader that itself handles michael@0: calling the filter, so the blitter can always ignore the colorfilter obj michael@0: michael@0: These pre-conditions must be handled by the caller, in our case michael@0: SkBlitter::Choose(...) michael@0: */ michael@0: michael@0: SkBlitter* SkBlitter_ChooseD565(const SkBitmap& device, const SkPaint& paint, michael@0: SkTBlitterAllocator* allocator); michael@0: michael@0: #endif