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
20 // skia headers
21 #include "SkBitmap.h"
22 #include "SkPath.h"
23 #include "SkPoint.h"
24 #include "SkRegion.h"
25 #include "SkClipStack.h"
26
27 ////////////////////////////////////////////////////////////////////////////////
28 // Sk to Gr Type conversions
29
30 GR_STATIC_ASSERT((int)kZero_GrBlendCoeff == (int)SkXfermode::kZero_Coeff);
31 GR_STATIC_ASSERT((int)kOne_GrBlendCoeff == (int)SkXfermode::kOne_Coeff);
32 GR_STATIC_ASSERT((int)kSC_GrBlendCoeff == (int)SkXfermode::kSC_Coeff);
33 GR_STATIC_ASSERT((int)kISC_GrBlendCoeff == (int)SkXfermode::kISC_Coeff);
34 GR_STATIC_ASSERT((int)kDC_GrBlendCoeff == (int)SkXfermode::kDC_Coeff);
35 GR_STATIC_ASSERT((int)kIDC_GrBlendCoeff == (int)SkXfermode::kIDC_Coeff);
36 GR_STATIC_ASSERT((int)kSA_GrBlendCoeff == (int)SkXfermode::kSA_Coeff);
37 GR_STATIC_ASSERT((int)kISA_GrBlendCoeff == (int)SkXfermode::kISA_Coeff);
38 GR_STATIC_ASSERT((int)kDA_GrBlendCoeff == (int)SkXfermode::kDA_Coeff);
39 GR_STATIC_ASSERT((int)kIDA_GrBlendCoeff == (int)SkXfermode::kIDA_Coeff);
40
41 #define sk_blend_to_grblend(X) ((GrBlendCoeff)(X))
42
43 ///////////////////////////////////////////////////////////////////////////////
44
45 #include "SkColorPriv.h"
46
47 GrPixelConfig SkImageInfo2GrPixelConfig(SkColorType, SkAlphaType, SkColorProfileType);
48
SkImageInfo2GrPixelConfig(const SkImageInfo & info)49 static inline GrPixelConfig SkImageInfo2GrPixelConfig(const SkImageInfo& info) {
50 return SkImageInfo2GrPixelConfig(info.colorType(), info.alphaType(), info.profileType());
51 }
52
53 bool GrPixelConfig2ColorAndProfileType(GrPixelConfig, SkColorType*, SkColorProfileType*);
54
SkColor2GrColor(SkColor c)55 static inline GrColor SkColor2GrColor(SkColor c) {
56 SkPMColor pm = SkPreMultiplyColor(c);
57 unsigned r = SkGetPackedR32(pm);
58 unsigned g = SkGetPackedG32(pm);
59 unsigned b = SkGetPackedB32(pm);
60 unsigned a = SkGetPackedA32(pm);
61 return GrColorPackRGBA(r, g, b, a);
62 }
63
SkColor2GrColorJustAlpha(SkColor c)64 static inline GrColor SkColor2GrColorJustAlpha(SkColor c) {
65 U8CPU a = SkColorGetA(c);
66 return GrColorPackRGBA(a, a, a, a);
67 }
68
69 ////////////////////////////////////////////////////////////////////////////////
70
71 bool GrIsBitmapInCache(const GrContext*, const SkBitmap&, const GrTextureParams*);
72
73 GrTexture* GrRefCachedBitmapTexture(GrContext*, const SkBitmap&, const GrTextureParams*);
74
75 ////////////////////////////////////////////////////////////////////////////////
76
77 // Converts a SkPaint to a GrPaint, ignoring the SkPaint's shader.
78 // Sets the color of GrPaint to the value of the parameter paintColor
79 // Callers may subsequently modify the GrPaint. Setting constantColor indicates
80 // that the final paint will draw the same color at every pixel. This allows
81 // an optimization where the color filter can be applied to the SkPaint's
82 // color once while converting to GrPaint and then ignored. TODO: Remove this
83 // bool and use the invariant info to automatically apply the color filter.
84 bool SkPaint2GrPaintNoShader(GrContext* context, GrRenderTarget*, const SkPaint& skPaint,
85 GrColor paintColor, bool constantColor, GrPaint* grPaint);
86
87 // This function is similar to skPaint2GrPaintNoShader but also converts
88 // skPaint's shader to a GrFragmentProcessor if possible.
89 // constantColor has the same meaning as in skPaint2GrPaintNoShader.
90 bool SkPaint2GrPaint(GrContext* context, GrRenderTarget*, const SkPaint& skPaint,
91 const SkMatrix& viewM, bool constantColor, GrPaint* grPaint);
92
93
94 SkImageInfo GrMakeInfoFromTexture(GrTexture* tex, int w, int h, bool isOpaque);
95
96 // Using the dreaded SkGrPixelRef ...
97 void GrWrapTextureInBitmap(GrTexture* src, int w, int h, bool isOpaque, SkBitmap* dst);
98
99 ////////////////////////////////////////////////////////////////////////////////
100 // Classes
101
102 class SkGlyphCache;
103
104 ////////////////////////////////////////////////////////////////////////////////
105
106 #endif
107