src/third_party/skia/include/gpu/SkGr.h

   1
   2 /*
   3  * Copyright 2010 Google Inc.
   4  *
   5  * Use of this source code is governed by a BSD-style license that can be
   6  * found in the LICENSE file.
   7  */
   8
   9
  10
  11 #ifndef SkGr_DEFINED
  12 #define SkGr_DEFINED
  13
  14 #include <stddef.h>
  15
  16 // Gr headers
  17 #include "GrTypes.h"
  18 #include "GrContext.h"
  19 #include "GrFontScaler.h"
  20
  21 // skia headers
  22 #include "SkBitmap.h"
  23 #include "SkPath.h"
  24 #include "SkPoint.h"
  25 #include "SkRegion.h"
  26 #include "SkClipStack.h"
  27
  28 ////////////////////////////////////////////////////////////////////////////////
  29 // Sk to Gr Type conversions
  30
  31 GR_STATIC_ASSERT((int)kZero_GrBlendCoeff == (int)SkXfermode::kZero_Coeff);
  32 GR_STATIC_ASSERT((int)kOne_GrBlendCoeff  == (int)SkXfermode::kOne_Coeff);
  33 GR_STATIC_ASSERT((int)kSC_GrBlendCoeff   == (int)SkXfermode::kSC_Coeff);
  34 GR_STATIC_ASSERT((int)kISC_GrBlendCoeff  == (int)SkXfermode::kISC_Coeff);
  35 GR_STATIC_ASSERT((int)kDC_GrBlendCoeff   == (int)SkXfermode::kDC_Coeff);
  36 GR_STATIC_ASSERT((int)kIDC_GrBlendCoeff  == (int)SkXfermode::kIDC_Coeff);
  37 GR_STATIC_ASSERT((int)kSA_GrBlendCoeff   == (int)SkXfermode::kSA_Coeff);
  38 GR_STATIC_ASSERT((int)kISA_GrBlendCoeff  == (int)SkXfermode::kISA_Coeff);
  39 GR_STATIC_ASSERT((int)kDA_GrBlendCoeff   == (int)SkXfermode::kDA_Coeff);
  40 GR_STATIC_ASSERT((int)kIDA_GrBlendCoeff  == (int)SkXfermode::kIDA_Coeff);
  41
  42 #define sk_blend_to_grblend(X) ((GrBlendCoeff)(X))
  43
  44 ///////////////////////////////////////////////////////////////////////////////
  45
  46 #include "SkColorPriv.h"
  47
  48 /**
  49  *  Convert the SkBitmap::Config to the corresponding PixelConfig, or
  50  *  kUnknown_PixelConfig if the conversion cannot be done.
  51  */
  52 GrPixelConfig SkBitmapConfig2GrPixelConfig(SkBitmap::Config);
  53 GrPixelConfig SkImageInfo2GrPixelConfig(SkColorType, SkAlphaType);
  54
  55 static inline GrPixelConfig SkImageInfo2GrPixelConfig(const SkImageInfo& info) {
  56     return SkImageInfo2GrPixelConfig(info.colorType(), info.alphaType());
  57 }
  58
  59 bool GrPixelConfig2ColorType(GrPixelConfig, SkColorType*);
  60
  61 static inline GrColor SkColor2GrColor(SkColor c) {
  62     SkPMColor pm = SkPreMultiplyColor(c);
  63     unsigned r = SkGetPackedR32(pm);
  64     unsigned g = SkGetPackedG32(pm);
  65     unsigned b = SkGetPackedB32(pm);
  66     unsigned a = SkGetPackedA32(pm);
  67     return GrColorPackRGBA(r, g, b, a);
  68 }
  69
  70 ////////////////////////////////////////////////////////////////////////////////
  71
  72 bool GrIsBitmapInCache(const GrContext*, const SkBitmap&, const GrTextureParams*);
  73
  74 GrTexture* GrLockAndRefCachedBitmapTexture(GrContext*, const SkBitmap&, const GrTextureParams*);
  75
  76 void GrUnlockAndUnrefCachedBitmapTexture(GrTexture*);
  77
  78 ////////////////////////////////////////////////////////////////////////////////
  79 // Classes
  80
  81 class SkGlyphCache;
  82
  83 class SkGrFontScaler : public GrFontScaler {
  84 public:
  85     explicit SkGrFontScaler(SkGlyphCache* strike);
  86     virtual ~SkGrFontScaler();
  87
  88     // overrides
  89     virtual const GrKey* getKey();
  90     virtual GrMaskFormat getMaskFormat();
  91     virtual bool getPackedGlyphBounds(GrGlyph::PackedID, SkIRect* bounds) SK_OVERRIDE;
  92     virtual bool getPackedGlyphImage(GrGlyph::PackedID, int width, int height,
  93                                      int rowBytes, void* image) SK_OVERRIDE;
  94     virtual bool getPackedGlyphDFBounds(GrGlyph::PackedID, SkIRect* bounds) SK_OVERRIDE;
  95     virtual bool getPackedGlyphDFImage(GrGlyph::PackedID, int width, int height,
  96                                        void* image) SK_OVERRIDE;
  97     virtual bool getGlyphPath(uint16_t glyphID, SkPath*);
  98
  99 private:
 100     SkGlyphCache* fStrike;
 101     GrKey*  fKey;
 102 //    DECLARE_INSTANCE_COUNTER(SkGrFontScaler);
 103 };
 104
 105 ////////////////////////////////////////////////////////////////////////////////
 106
 107 #endif