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#if (GR_DEBUG && defined(SK_RELEASE)) || (GR_RELEASE && defined(SK_DEBUG))
29//    #error "inconsistent GR_DEBUG and SK_DEBUG"
30#endif
31
32////////////////////////////////////////////////////////////////////////////////
33// Sk to Gr Type conversions
34
35GR_STATIC_ASSERT((int)kZero_GrBlendCoeff == (int)SkXfermode::kZero_Coeff);
36GR_STATIC_ASSERT((int)kOne_GrBlendCoeff  == (int)SkXfermode::kOne_Coeff);
37GR_STATIC_ASSERT((int)kSC_GrBlendCoeff   == (int)SkXfermode::kSC_Coeff);
38GR_STATIC_ASSERT((int)kISC_GrBlendCoeff  == (int)SkXfermode::kISC_Coeff);
39GR_STATIC_ASSERT((int)kDC_GrBlendCoeff   == (int)SkXfermode::kDC_Coeff);
40GR_STATIC_ASSERT((int)kIDC_GrBlendCoeff  == (int)SkXfermode::kIDC_Coeff);
41GR_STATIC_ASSERT((int)kSA_GrBlendCoeff   == (int)SkXfermode::kSA_Coeff);
42GR_STATIC_ASSERT((int)kISA_GrBlendCoeff  == (int)SkXfermode::kISA_Coeff);
43GR_STATIC_ASSERT((int)kDA_GrBlendCoeff   == (int)SkXfermode::kDA_Coeff);
44GR_STATIC_ASSERT((int)kIDA_GrBlendCoeff  == (int)SkXfermode::kIDA_Coeff);
45
46#define sk_blend_to_grblend(X) ((GrBlendCoeff)(X))
47
48///////////////////////////////////////////////////////////////////////////////
49
50#include "SkColorPriv.h"
51
52/**
53 *  Convert the SkBitmap::Config to the corresponding PixelConfig, or
54 *  kUnknown_PixelConfig if the conversion cannot be done.
55 */
56GrPixelConfig SkBitmapConfig2GrPixelConfig(SkBitmap::Config);
57
58static inline GrColor SkColor2GrColor(SkColor c) {
59    SkPMColor pm = SkPreMultiplyColor(c);
60    unsigned r = SkGetPackedR32(pm);
61    unsigned g = SkGetPackedG32(pm);
62    unsigned b = SkGetPackedB32(pm);
63    unsigned a = SkGetPackedA32(pm);
64    return GrColorPackRGBA(r, g, b, a);
65}
66
67////////////////////////////////////////////////////////////////////////////////
68
69bool GrIsBitmapInCache(const GrContext*, const SkBitmap&, const GrTextureParams*);
70
71GrTexture* GrLockAndRefCachedBitmapTexture(GrContext*, const SkBitmap&, const GrTextureParams*);
72
73void GrUnlockAndUnrefCachedBitmapTexture(GrTexture*);
74
75////////////////////////////////////////////////////////////////////////////////
76// Classes
77
78class SkGlyphCache;
79
80class SkGrFontScaler : public GrFontScaler {
81public:
82    explicit SkGrFontScaler(SkGlyphCache* strike);
83    virtual ~SkGrFontScaler();
84
85    // overrides
86    virtual const GrKey* getKey();
87    virtual GrMaskFormat getMaskFormat();
88    virtual bool getPackedGlyphBounds(GrGlyph::PackedID, SkIRect* bounds);
89    virtual bool getPackedGlyphImage(GrGlyph::PackedID, int width, int height,
90                                     int rowBytes, void* image);
91    virtual bool getGlyphPath(uint16_t glyphID, SkPath*);
92
93private:
94    SkGlyphCache* fStrike;
95    GrKey*  fKey;
96//    DECLARE_INSTANCE_COUNTER(SkGrFontScaler);
97};
98
99////////////////////////////////////////////////////////////////////////////////
100
101#endif
102