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
30GR_STATIC_ASSERT((int)kZero_GrBlendCoeff == (int)SkXfermode::kZero_Coeff);
31GR_STATIC_ASSERT((int)kOne_GrBlendCoeff  == (int)SkXfermode::kOne_Coeff);
32GR_STATIC_ASSERT((int)kSC_GrBlendCoeff   == (int)SkXfermode::kSC_Coeff);
33GR_STATIC_ASSERT((int)kISC_GrBlendCoeff  == (int)SkXfermode::kISC_Coeff);
34GR_STATIC_ASSERT((int)kDC_GrBlendCoeff   == (int)SkXfermode::kDC_Coeff);
35GR_STATIC_ASSERT((int)kIDC_GrBlendCoeff  == (int)SkXfermode::kIDC_Coeff);
36GR_STATIC_ASSERT((int)kSA_GrBlendCoeff   == (int)SkXfermode::kSA_Coeff);
37GR_STATIC_ASSERT((int)kISA_GrBlendCoeff  == (int)SkXfermode::kISA_Coeff);
38GR_STATIC_ASSERT((int)kDA_GrBlendCoeff   == (int)SkXfermode::kDA_Coeff);
39GR_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
47GrPixelConfig SkImageInfo2GrPixelConfig(SkColorType, SkAlphaType, SkColorProfileType);
48
49static inline GrPixelConfig SkImageInfo2GrPixelConfig(const SkImageInfo& info) {
50    return SkImageInfo2GrPixelConfig(info.colorType(), info.alphaType(), info.profileType());
51}
52
53bool GrPixelConfig2ColorAndProfileType(GrPixelConfig, SkColorType*, SkColorProfileType*);
54
55static 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
64static inline GrColor SkColor2GrColorJustAlpha(SkColor c) {
65    U8CPU a = SkColorGetA(c);
66    return GrColorPackRGBA(a, a, a, a);
67}
68
69////////////////////////////////////////////////////////////////////////////////
70
71bool GrIsBitmapInCache(const GrContext*, const SkBitmap&, const GrTextureParams*);
72
73GrTexture* 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.
84bool 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.
90bool SkPaint2GrPaint(GrContext* context, GrRenderTarget*, const SkPaint& skPaint,
91                     const SkMatrix& viewM, bool constantColor, GrPaint* grPaint);
92
93
94SkImageInfo GrMakeInfoFromTexture(GrTexture* tex, int w, int h, bool isOpaque);
95
96// Using the dreaded SkGrPixelRef ...
97void GrWrapTextureInBitmap(GrTexture* src, int w, int h, bool isOpaque, SkBitmap* dst);
98
99////////////////////////////////////////////////////////////////////////////////
100// Classes
101
102class SkGlyphCache;
103
104////////////////////////////////////////////////////////////////////////////////
105
106#endif
107