1 files changed, 259 insertions, 0 deletions
diff --git a/libsgl/sgl/SkCoreBlitters.h b/libsgl/sgl/SkCoreBlitters.h
new file mode 100644
index 0000000..5b3497e
--- /dev/null
+++ b/libsgl/sgl/SkCoreBlitters.h
@@ -0,0 +1,259 @@
+/* libs/graphics/sgl/SkCoreBlitters.h
+**
+** Copyright 2006, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License"); 
+** you may not use this file except in compliance with the License. 
+** You may obtain a copy of the License at 
+**
+**     http://www.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#ifndef SkCoreBlitters_DEFINED
+#define SkCoreBlitters_DEFINED
+
+#include "SkBlitter.h"
+#include "SkBlitRow.h"
+
+class SkRasterBlitter : public SkBlitter {
+public:
+    SkRasterBlitter(const SkBitmap& device) : fDevice(device) {}
+
+protected:
+    const SkBitmap& fDevice;
+
+private:
+    typedef SkBlitter INHERITED;
+};
+
+class SkShaderBlitter : public SkRasterBlitter {
+public:
+    SkShaderBlitter(const SkBitmap& device, const SkPaint& paint);
+    virtual ~SkShaderBlitter();
+
+protected:
+    SkShader* fShader;
+
+private:
+    // illegal
+    SkShaderBlitter& operator=(const SkShaderBlitter&);
+
+    typedef SkRasterBlitter INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+class SkA8_Blitter : public SkRasterBlitter {
+public:
+    SkA8_Blitter(const SkBitmap& device, const SkPaint& paint);
+    virtual void blitH(int x, int y, int width);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+    virtual void blitV(int x, int y, int height, SkAlpha alpha);
+    virtual void blitRect(int x, int y, int width, int height);
+    virtual void blitMask(const SkMask&, const SkIRect&);
+    virtual const SkBitmap* justAnOpaqueColor(uint32_t*);
+
+private:
+    unsigned fSrcA;
+
+    // illegal
+    SkA8_Blitter& operator=(const SkA8_Blitter&);
+
+    typedef SkRasterBlitter INHERITED;
+};
+
+class SkA8_Shader_Blitter : public SkShaderBlitter {
+public:
+    SkA8_Shader_Blitter(const SkBitmap& device, const SkPaint& paint);
+    virtual ~SkA8_Shader_Blitter();
+    virtual void blitH(int x, int y, int width);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+    virtual void blitMask(const SkMask&, const SkIRect&);
+
+private:
+    SkXfermode* fXfermode;
+    SkPMColor*  fBuffer;
+    uint8_t*    fAAExpand;
+
+    // illegal
+    SkA8_Shader_Blitter& operator=(const SkA8_Shader_Blitter&);
+
+    typedef SkShaderBlitter INHERITED;
+};
+
+////////////////////////////////////////////////////////////////
+
+class SkARGB32_Blitter : public SkRasterBlitter {
+public:
+    SkARGB32_Blitter(const SkBitmap& device, const SkPaint& paint);
+    virtual void blitH(int x, int y, int width);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+    virtual void blitV(int x, int y, int height, SkAlpha alpha);
+    virtual void blitRect(int x, int y, int width, int height);
+    virtual void blitMask(const SkMask&, const SkIRect&);
+    virtual const SkBitmap* justAnOpaqueColor(uint32_t*);
+
+protected:
+    SkColor fPMColor;
+
+private:
+    unsigned fSrcA, fSrcR, fSrcG, fSrcB;
+
+    // illegal
+    SkARGB32_Blitter& operator=(const SkARGB32_Blitter&);
+
+    typedef SkRasterBlitter INHERITED;
+};
+
+class SkARGB32_Black_Blitter : public SkARGB32_Blitter {
+public:
+    SkARGB32_Black_Blitter(const SkBitmap& device, const SkPaint& paint)
+        : SkARGB32_Blitter(device, paint) {}
+    virtual void blitMask(const SkMask&, const SkIRect&);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+    
+private:
+    typedef SkARGB32_Blitter INHERITED;
+};
+
+class SkARGB32_Opaque_Blitter : public SkARGB32_Blitter {
+public:
+    SkARGB32_Opaque_Blitter(const SkBitmap& device, const SkPaint& paint)
+        : SkARGB32_Blitter(device, paint) { SkASSERT(paint.getAlpha() == 0xFF); }
+    virtual void blitMask(const SkMask&, const SkIRect&);
+
+private:
+    typedef SkARGB32_Blitter INHERITED;
+};
+
+class SkARGB32_Shader_Blitter : public SkShaderBlitter {
+public:
+    SkARGB32_Shader_Blitter(const SkBitmap& device, const SkPaint& paint);
+    virtual ~SkARGB32_Shader_Blitter();
+    virtual void blitH(int x, int y, int width);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+
+private:
+    SkXfermode* fXfermode;
+    SkPMColor*  fBuffer;
+
+    // illegal
+    SkARGB32_Shader_Blitter& operator=(const SkARGB32_Shader_Blitter&);
+
+    typedef SkShaderBlitter INHERITED;
+};
+
+////////////////////////////////////////////////////////////////
+
+class SkRGB16_Blitter : public SkRasterBlitter {
+public:
+    SkRGB16_Blitter(const SkBitmap& device, const SkPaint& paint);
+    virtual void blitH(int x, int y, int width);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+    virtual void blitV(int x, int y, int height, SkAlpha alpha);
+    virtual void blitRect(int x, int y, int width, int height);
+    virtual void blitMask(const SkMask&, const SkIRect&);
+    virtual const SkBitmap* justAnOpaqueColor(uint32_t*);
+
+private:
+    SkPMColor   fSrcColor32;
+    unsigned    fScale;
+    uint16_t    fColor16;       // already scaled by fScale
+    uint16_t    fRawColor16;    // unscaled
+    uint16_t    fRawDither16;   // unscaled
+    SkBool8     fDoDither;
+
+    // illegal
+    SkRGB16_Blitter& operator=(const SkRGB16_Blitter&);
+
+    typedef SkRasterBlitter INHERITED;
+};
+
+class SkRGB16_Black_Blitter : public SkRGB16_Blitter {
+public:
+    SkRGB16_Black_Blitter(const SkBitmap& device, const SkPaint& paint);
+
+    virtual void blitMask(const SkMask&, const SkIRect&);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+
+private:
+    typedef SkRGB16_Blitter INHERITED;
+};
+
+class SkRGB16_Shader_Blitter : public SkShaderBlitter {
+public:
+    SkRGB16_Shader_Blitter(const SkBitmap& device, const SkPaint& paint);
+    virtual ~SkRGB16_Shader_Blitter();
+    virtual void blitH(int x, int y, int width);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+    
+protected:
+    SkPMColor*      fBuffer;
+    SkBlitRow::Proc fOpaqueProc;
+    SkBlitRow::Proc fAlphaProc;
+    
+private:
+    // illegal
+    SkRGB16_Shader_Blitter& operator=(const SkRGB16_Shader_Blitter&);
+
+    typedef SkShaderBlitter INHERITED;
+};
+
+// used only if the shader can perform shadSpan16
+class SkRGB16_Shader16_Blitter : public SkRGB16_Shader_Blitter {
+public:
+    SkRGB16_Shader16_Blitter(const SkBitmap& device, const SkPaint& paint);
+    virtual void blitH(int x, int y, int width);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+    
+private:
+    typedef SkRGB16_Shader_Blitter INHERITED;
+};
+
+class SkRGB16_Shader_Xfermode_Blitter : public SkShaderBlitter {
+public:
+    SkRGB16_Shader_Xfermode_Blitter(const SkBitmap& device, const SkPaint& paint);
+    virtual ~SkRGB16_Shader_Xfermode_Blitter();
+    virtual void blitH(int x, int y, int width);
+    virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
+
+private:
+    SkXfermode* fXfermode;
+    SkPMColor*  fBuffer;
+    uint8_t*    fAAExpand;
+
+    // illegal
+    SkRGB16_Shader_Xfermode_Blitter& operator=(const SkRGB16_Shader_Xfermode_Blitter&);
+
+    typedef SkShaderBlitter INHERITED;
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+class SkA1_Blitter : public SkRasterBlitter {
+public:
+    SkA1_Blitter(const SkBitmap& device, const SkPaint& paint);
+    virtual void blitH(int x, int y, int width);
+
+private:
+    uint8_t fSrcA;
+
+    // illegal
+    SkA1_Blitter& operator=(const SkA1_Blitter&);
+    
+    typedef SkRasterBlitter INHERITED;
+};
+
+
+extern SkBlitter* SkBlitter_ChooseD4444(const SkBitmap& device,
+                                        const SkPaint& paint,
+                                        void* storage, size_t storageSize);
+
+#endif
+