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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrDistanceFieldTextureEffect_DEFINED | 8 #ifndef GrDistanceFieldTextureEffect_DEFINED |
9 #define GrDistanceFieldTextureEffect_DEFINED | 9 #define GrDistanceFieldTextureEffect_DEFINED |
10 | 10 |
11 #include "GrEffect.h" | 11 #include "GrEffect.h" |
12 #include "GrVertexEffect.h" | 12 #include "GrVertexEffect.h" |
13 | 13 |
14 class GrGLDistanceFieldTextureEffect; | 14 class GrGLDistanceFieldTextureEffect; |
15 class GrGLDistanceFieldLCDTextureEffect; | 15 class GrGLDistanceFieldLCDTextureEffect; |
16 | 16 |
17 enum GrDistanceFieldEffectFlags { | |
18 kSimilarity_DistanceFieldEffectFlag = 0x01, // ctm is similarity matrix | |
19 kRectToRect_DistanceFieldEffectFlag = 0x02, // ctm maps rects to rects | |
20 kUseLCD_DistanceFieldEffectFlag = 0x04, // use lcd text | |
21 kBGR_DistanceFieldEffectFlag = 0x08, // lcd display has bgr order | |
22 kPortrait_DistanceFieldEffectFlag = 0x10, // lcd display is in portrait mode (not used yet) | |
23 | |
24 kUniformScale_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag | | |
25 kRectToRect_DistanceFieldEffectFlag, | |
robertphillips
2014/07/29 14:01:06
// The subset of the flags relevant to GrDistanceF
jvanverth1
2014/07/29 14:43:42
Done.
| |
26 kNonLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag, | |
robertphillips
2014/07/29 14:01:06
// The subset of the flags relevant to GrDistanceF
jvanverth1
2014/07/29 14:43:41
Done.
| |
27 kLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag | | |
28 kRectToRect_DistanceFieldEffectFlag | | |
29 kUseLCD_DistanceFieldEffectFlag | | |
30 kBGR_DistanceFieldEffectFlag, | |
31 }; | |
32 | |
17 /** | 33 /** |
18 * The output color of this effect is a modulation of the input color and a samp le from a | 34 * The output color of this effect is a modulation of the input color and a samp le from a |
19 * distance field texture (using a smoothed step function near 0.5). | 35 * distance field texture (using a smoothed step function near 0.5). |
20 * It allows explicit specification of the filtering and wrap modes (GrTexturePa rams). The input | 36 * It allows explicit specification of the filtering and wrap modes (GrTexturePa rams). The input |
21 * coords are a custom attribute. Gamma correction is handled via a texture LUT. | 37 * coords are a custom attribute. Gamma correction is handled via a texture LUT. |
22 */ | 38 */ |
23 class GrDistanceFieldTextureEffect : public GrVertexEffect { | 39 class GrDistanceFieldTextureEffect : public GrVertexEffect { |
24 public: | 40 public: |
25 #ifdef SK_GAMMA_APPLY_TO_A8 | 41 #ifdef SK_GAMMA_APPLY_TO_A8 |
26 static GrEffect* Create(GrTexture* tex, const GrTextureParams& params, | 42 static GrEffect* Create(GrTexture* tex, const GrTextureParams& params, |
27 GrTexture* gamma, const GrTextureParams& gammaParams , float lum, | 43 GrTexture* gamma, const GrTextureParams& gammaParams , float lum, |
28 bool similarity) { | 44 uint32_t flags) { |
29 return SkNEW_ARGS(GrDistanceFieldTextureEffect, (tex, params, gamma, gamm aParams, lum, | 45 return SkNEW_ARGS(GrDistanceFieldTextureEffect, (tex, params, gamma, gamm aParams, lum, |
30 similarity)); | 46 flags)); |
31 } | 47 } |
32 #else | 48 #else |
33 static GrEffect* Create(GrTexture* tex, const GrTextureParams& params, | 49 static GrEffect* Create(GrTexture* tex, const GrTextureParams& params, |
34 bool similarity) { | 50 uint32_t flags) { |
35 return SkNEW_ARGS(GrDistanceFieldTextureEffect, (tex, params, similarit y)); | 51 return SkNEW_ARGS(GrDistanceFieldTextureEffect, (tex, params, flags)); |
36 } | 52 } |
37 #endif | 53 #endif |
38 | 54 |
39 virtual ~GrDistanceFieldTextureEffect() {} | 55 virtual ~GrDistanceFieldTextureEffect() {} |
40 | 56 |
41 static const char* Name() { return "DistanceFieldTexture"; } | 57 static const char* Name() { return "DistanceFieldTexture"; } |
42 | 58 |
43 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags ) const SK_OVERRIDE; | 59 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags ) const SK_OVERRIDE; |
44 #ifdef SK_GAMMA_APPLY_TO_A8 | 60 #ifdef SK_GAMMA_APPLY_TO_A8 |
45 float getLuminance() const { return fLuminance; } | 61 float getLuminance() const { return fLuminance; } |
46 #endif | 62 #endif |
47 bool isSimilarity() const { return fIsSimilarity; } | 63 uint32_t getFlags() const { return fFlags; } |
48 | 64 |
49 typedef GrGLDistanceFieldTextureEffect GLEffect; | 65 typedef GrGLDistanceFieldTextureEffect GLEffect; |
50 | 66 |
51 virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; | 67 virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; |
52 | 68 |
53 private: | 69 private: |
54 GrDistanceFieldTextureEffect(GrTexture* texture, const GrTextureParams& para ms, | 70 GrDistanceFieldTextureEffect(GrTexture* texture, const GrTextureParams& para ms, |
55 #ifdef SK_GAMMA_APPLY_TO_A8 | 71 #ifdef SK_GAMMA_APPLY_TO_A8 |
56 GrTexture* gamma, const GrTextureParams& gammaP arams, float lum, | 72 GrTexture* gamma, const GrTextureParams& gammaP arams, float lum, |
57 #endif | 73 #endif |
58 bool uniformScale); | 74 uint32_t flags); |
59 | 75 |
60 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE; | 76 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE; |
61 | 77 |
62 GrTextureAccess fTextureAccess; | 78 GrTextureAccess fTextureAccess; |
63 #ifdef SK_GAMMA_APPLY_TO_A8 | 79 #ifdef SK_GAMMA_APPLY_TO_A8 |
64 GrTextureAccess fGammaTextureAccess; | 80 GrTextureAccess fGammaTextureAccess; |
65 float fLuminance; | 81 float fLuminance; |
66 #endif | 82 #endif |
67 bool fIsSimilarity; | 83 uint32_t fFlags; |
68 | 84 |
69 GR_DECLARE_EFFECT_TEST; | 85 GR_DECLARE_EFFECT_TEST; |
70 | 86 |
71 typedef GrVertexEffect INHERITED; | 87 typedef GrVertexEffect INHERITED; |
72 }; | 88 }; |
73 | 89 |
74 /** | 90 /** |
75 * The output color of this effect is a modulation of the input color and sample s from a | 91 * The output color of this effect is a modulation of the input color and sample s from a |
76 * distance field texture (using a smoothed step function near 0.5), adjusted fo r LCD displays. | 92 * distance field texture (using a smoothed step function near 0.5), adjusted fo r LCD displays. |
77 * It allows explicit specification of the filtering and wrap modes (GrTexturePa rams). The input | 93 * It allows explicit specification of the filtering and wrap modes (GrTexturePa rams). The input |
78 * coords are a custom attribute. Gamma correction is handled via a texture LUT. | 94 * coords are a custom attribute. Gamma correction is handled via a texture LUT. |
79 */ | 95 */ |
80 class GrDistanceFieldLCDTextureEffect : public GrVertexEffect { | 96 class GrDistanceFieldLCDTextureEffect : public GrVertexEffect { |
81 public: | 97 public: |
82 static GrEffect* Create(GrTexture* tex, const GrTextureParams& params, | 98 static GrEffect* Create(GrTexture* tex, const GrTextureParams& params, |
83 GrTexture* gamma, const GrTextureParams& gammaParams , | 99 GrTexture* gamma, const GrTextureParams& gammaParams , |
84 SkColor textColor, bool uniformScale, bool useBGR) { | 100 SkColor textColor, uint32_t flags) { |
85 return SkNEW_ARGS(GrDistanceFieldLCDTextureEffect, | 101 return SkNEW_ARGS(GrDistanceFieldLCDTextureEffect, |
86 (tex, params, gamma, gammaParams, textColor, uniformSc ale, useBGR)); | 102 (tex, params, gamma, gammaParams, textColor, flags)); |
87 } | 103 } |
88 | 104 |
89 virtual ~GrDistanceFieldLCDTextureEffect() {} | 105 virtual ~GrDistanceFieldLCDTextureEffect() {} |
90 | 106 |
91 static const char* Name() { return "DistanceFieldLCDTexture"; } | 107 static const char* Name() { return "DistanceFieldLCDTexture"; } |
92 | 108 |
93 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags ) const SK_OVERRIDE; | 109 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags ) const SK_OVERRIDE; |
94 GrColor getTextColor() const { return fTextColor; } | 110 GrColor getTextColor() const { return fTextColor; } |
95 bool isUniformScale() const { return fUniformScale; } | 111 uint32_t getFlags() const { return fFlags; } |
96 bool useBGR() const { return fUseBGR; } | |
97 | 112 |
98 typedef GrGLDistanceFieldLCDTextureEffect GLEffect; | 113 typedef GrGLDistanceFieldLCDTextureEffect GLEffect; |
99 | 114 |
100 virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; | 115 virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; |
101 | 116 |
102 private: | 117 private: |
103 GrDistanceFieldLCDTextureEffect(GrTexture* texture, const GrTextureParams& p arams, | 118 GrDistanceFieldLCDTextureEffect(GrTexture* texture, const GrTextureParams& p arams, |
104 GrTexture* gamma, const GrTextureParams& gam maParams, | 119 GrTexture* gamma, const GrTextureParams& gam maParams, |
105 SkColor textColor, | 120 SkColor textColor, |
106 bool uniformScale, bool useBGR); | 121 uint32_t flags); |
107 | 122 |
108 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE; | 123 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE; |
109 | 124 |
110 GrTextureAccess fTextureAccess; | 125 GrTextureAccess fTextureAccess; |
111 GrTextureAccess fGammaTextureAccess; | 126 GrTextureAccess fGammaTextureAccess; |
112 GrColor fTextColor; | 127 GrColor fTextColor; |
113 bool fUniformScale; | 128 uint32_t fFlags; |
114 bool fUseBGR; | |
115 | 129 |
116 GR_DECLARE_EFFECT_TEST; | 130 GR_DECLARE_EFFECT_TEST; |
117 | 131 |
118 typedef GrVertexEffect INHERITED; | 132 typedef GrVertexEffect INHERITED; |
119 }; | 133 }; |
120 | 134 |
121 #endif | 135 #endif |
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