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
35 GR_STATIC_ASSERT((int)kZero_GrBlendCoeff == (int)SkXfermode::kZero_Coeff);
36 GR_STATIC_ASSERT((int)kOne_GrBlendCoeff == (int)SkXfermode::kOne_Coeff);
37 GR_STATIC_ASSERT((int)kSC_GrBlendCoeff == (int)SkXfermode::kSC_Coeff);
38 GR_STATIC_ASSERT((int)kISC_GrBlendCoeff == (int)SkXfermode::kISC_Coeff);
39 GR_STATIC_ASSERT((int)kDC_GrBlendCoeff == (int)SkXfermode::kDC_Coeff);
40 GR_STATIC_ASSERT((int)kIDC_GrBlendCoeff == (int)SkXfermode::kIDC_Coeff);
41 GR_STATIC_ASSERT((int)kSA_GrBlendCoeff == (int)SkXfermode::kSA_Coeff);
42 GR_STATIC_ASSERT((int)kISA_GrBlendCoeff == (int)SkXfermode::kISA_Coeff);
43 GR_STATIC_ASSERT((int)kDA_GrBlendCoeff == (int)SkXfermode::kDA_Coeff);
44 GR_STATIC_ASSERT((int)kIDA_GrBlendCoeff == (int)SkXfermode::kIDA_Coeff);
45
46 #define sk_blend_to_grblend(X) ((GrBlendCoeff)(X))
47
48 GR_STATIC_ASSERT((int)SkPath::kMove_Verb == (int)kMove_PathCmd);
49 GR_STATIC_ASSERT((int)SkPath::kLine_Verb == (int)kLine_PathCmd);
50 GR_STATIC_ASSERT((int)SkPath::kQuad_Verb == (int)kQuadratic_PathCmd);
51 GR_STATIC_ASSERT((int)SkPath::kCubic_Verb == (int)kCubic_PathCmd);
52 GR_STATIC_ASSERT((int)SkPath::kClose_Verb == (int)kClose_PathCmd);
53 GR_STATIC_ASSERT((int)SkPath::kDone_Verb == (int)kEnd_PathCmd);
54
55 #define sk_path_verb_to_gr_path_command(X) ((GrPathCmd)(X))
56
57 ///////////////////////////////////////////////////////////////////////////////
58
59 #include "SkColorPriv.h"
60
61 /**
62 * Convert the SkBitmap::Config to the corresponding PixelConfig, or
63 * kUnknown_PixelConfig if the conversion cannot be done.
64 */
65 GrPixelConfig SkBitmapConfig2GrPixelConfig(SkBitmap::Config);
66
SkColor2GrColor(SkColor c)67 static inline GrColor SkColor2GrColor(SkColor c) {
68 SkPMColor pm = SkPreMultiplyColor(c);
69 unsigned r = SkGetPackedR32(pm);
70 unsigned g = SkGetPackedG32(pm);
71 unsigned b = SkGetPackedB32(pm);
72 unsigned a = SkGetPackedA32(pm);
73 return GrColorPackRGBA(r, g, b, a);
74 }
75
76 ////////////////////////////////////////////////////////////////////////////////
77
78 bool GrIsBitmapInCache(const GrContext*, const SkBitmap&, const GrTextureParams*);
79
80 GrTexture* GrLockAndRefCachedBitmapTexture(GrContext*, const SkBitmap&, const GrTextureParams*);
81
82 void GrUnlockAndUnrefCachedBitmapTexture(GrTexture*);
83
84 ////////////////////////////////////////////////////////////////////////////////
85 // Classes
86
87 class SkGlyphCache;
88
89 class SkGrFontScaler : public GrFontScaler {
90 public:
91 explicit SkGrFontScaler(SkGlyphCache* strike);
92 virtual ~SkGrFontScaler();
93
94 // overrides
95 virtual const GrKey* getKey();
96 virtual GrMaskFormat getMaskFormat();
97 virtual bool getPackedGlyphBounds(GrGlyph::PackedID, GrIRect* bounds);
98 virtual bool getPackedGlyphImage(GrGlyph::PackedID, int width, int height,
99 int rowBytes, void* image);
100 virtual bool getGlyphPath(uint16_t glyphID, SkPath*);
101
102 private:
103 SkGlyphCache* fStrike;
104 GrKey* fKey;
105 // DECLARE_INSTANCE_COUNTER(SkGrFontScaler);
106 };
107
108 ////////////////////////////////////////////////////////////////////////////////
109
110 #endif
111