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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2010 Google Inc. | 3 * Copyright 2010 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 | 10 |
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28 #define GrColor_SHIFT_R 0 | 28 #define GrColor_SHIFT_R 0 |
29 #define GrColor_SHIFT_G 8 | 29 #define GrColor_SHIFT_G 8 |
30 #define GrColor_SHIFT_B 16 | 30 #define GrColor_SHIFT_B 16 |
31 #define GrColor_SHIFT_A 24 | 31 #define GrColor_SHIFT_A 24 |
32 | 32 |
33 /** | 33 /** |
34 * Pack 4 components (RGBA) into a GrColor int | 34 * Pack 4 components (RGBA) into a GrColor int |
35 */ | 35 */ |
36 static inline GrColor GrColorPackRGBA(unsigned r, unsigned g, | 36 static inline GrColor GrColorPackRGBA(unsigned r, unsigned g, |
37 unsigned b, unsigned a) { | 37 unsigned b, unsigned a) { |
38 GrAssert((uint8_t)r == r); | 38 SkASSERT((uint8_t)r == r); |
39 GrAssert((uint8_t)g == g); | 39 SkASSERT((uint8_t)g == g); |
40 GrAssert((uint8_t)b == b); | 40 SkASSERT((uint8_t)b == b); |
41 GrAssert((uint8_t)a == a); | 41 SkASSERT((uint8_t)a == a); |
42 return (r << GrColor_SHIFT_R) | | 42 return (r << GrColor_SHIFT_R) | |
43 (g << GrColor_SHIFT_G) | | 43 (g << GrColor_SHIFT_G) | |
44 (b << GrColor_SHIFT_B) | | 44 (b << GrColor_SHIFT_B) | |
45 (a << GrColor_SHIFT_A); | 45 (a << GrColor_SHIFT_A); |
46 } | 46 } |
47 | 47 |
48 // extract a component (byte) from a GrColor int | 48 // extract a component (byte) from a GrColor int |
49 | 49 |
50 #define GrColorUnpackR(color) (((color) >> GrColor_SHIFT_R) & 0xFF) | 50 #define GrColorUnpackR(color) (((color) >> GrColor_SHIFT_R) & 0xFF) |
51 #define GrColorUnpackG(color) (((color) >> GrColor_SHIFT_G) & 0xFF) | 51 #define GrColorUnpackG(color) (((color) >> GrColor_SHIFT_G) & 0xFF) |
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78 kA_GrColorComponentFlag = 1 << (GrColor_SHIFT_A / 8), | 78 kA_GrColorComponentFlag = 1 << (GrColor_SHIFT_A / 8), |
79 | 79 |
80 kRGB_GrColorComponentFlags = (kR_GrColorComponentFlag | kG_GrColorComponentF
lag | | 80 kRGB_GrColorComponentFlags = (kR_GrColorComponentFlag | kG_GrColorComponentF
lag | |
81 kB_GrColorComponentFlag), | 81 kB_GrColorComponentFlag), |
82 | 82 |
83 kRGBA_GrColorComponentFlags = (kR_GrColorComponentFlag | kG_GrColorComponent
Flag | | 83 kRGBA_GrColorComponentFlags = (kR_GrColorComponentFlag | kG_GrColorComponent
Flag | |
84 kB_GrColorComponentFlag | kA_GrColorComponent
Flag) | 84 kB_GrColorComponentFlag | kA_GrColorComponent
Flag) |
85 }; | 85 }; |
86 | 86 |
87 static inline char GrColorComponentFlagToChar(GrColorComponentFlags component) { | 87 static inline char GrColorComponentFlagToChar(GrColorComponentFlags component) { |
88 GrAssert(GrIsPow2(component)); | 88 SkASSERT(GrIsPow2(component)); |
89 switch (component) { | 89 switch (component) { |
90 case kR_GrColorComponentFlag: | 90 case kR_GrColorComponentFlag: |
91 return 'r'; | 91 return 'r'; |
92 case kG_GrColorComponentFlag: | 92 case kG_GrColorComponentFlag: |
93 return 'g'; | 93 return 'g'; |
94 case kB_GrColorComponentFlag: | 94 case kB_GrColorComponentFlag: |
95 return 'b'; | 95 return 'b'; |
96 case kA_GrColorComponentFlag: | 96 case kA_GrColorComponentFlag: |
97 return 'a'; | 97 return 'a'; |
98 default: | 98 default: |
99 GrCrash("Invalid color component flag."); | 99 GrCrash("Invalid color component flag."); |
100 return '\0'; | 100 return '\0'; |
101 } | 101 } |
102 } | 102 } |
103 | 103 |
104 static inline uint32_t GrPixelConfigComponentMask(GrPixelConfig config) { | 104 static inline uint32_t GrPixelConfigComponentMask(GrPixelConfig config) { |
105 GrAssert(config >= 0 && config < kGrPixelConfigCnt); | 105 SkASSERT(config >= 0 && config < kGrPixelConfigCnt); |
106 static const uint32_t kFlags[] = { | 106 static const uint32_t kFlags[] = { |
107 0, // kUnknown_GrPixelConfig | 107 0, // kUnknown_GrPixelConfig |
108 kA_GrColorComponentFlag, // kAlpha_8_GrPixelConfig | 108 kA_GrColorComponentFlag, // kAlpha_8_GrPixelConfig |
109 kRGBA_GrColorComponentFlags, // kIndex_8_GrPixelConfig | 109 kRGBA_GrColorComponentFlags, // kIndex_8_GrPixelConfig |
110 kRGB_GrColorComponentFlags, // kRGB_565_GrPixelConfig | 110 kRGB_GrColorComponentFlags, // kRGB_565_GrPixelConfig |
111 kRGBA_GrColorComponentFlags, // kRGBA_4444_GrPixelConfig | 111 kRGBA_GrColorComponentFlags, // kRGBA_4444_GrPixelConfig |
112 kRGBA_GrColorComponentFlags, // kRGBA_8888_GrPixelConfig | 112 kRGBA_GrColorComponentFlags, // kRGBA_8888_GrPixelConfig |
113 kRGBA_GrColorComponentFlags, // kBGRA_8888_GrPixelConfig | 113 kRGBA_GrColorComponentFlags, // kBGRA_8888_GrPixelConfig |
114 }; | 114 }; |
115 return kFlags[config]; | 115 return kFlags[config]; |
116 | 116 |
117 GR_STATIC_ASSERT(0 == kUnknown_GrPixelConfig); | 117 GR_STATIC_ASSERT(0 == kUnknown_GrPixelConfig); |
118 GR_STATIC_ASSERT(1 == kAlpha_8_GrPixelConfig); | 118 GR_STATIC_ASSERT(1 == kAlpha_8_GrPixelConfig); |
119 GR_STATIC_ASSERT(2 == kIndex_8_GrPixelConfig); | 119 GR_STATIC_ASSERT(2 == kIndex_8_GrPixelConfig); |
120 GR_STATIC_ASSERT(3 == kRGB_565_GrPixelConfig); | 120 GR_STATIC_ASSERT(3 == kRGB_565_GrPixelConfig); |
121 GR_STATIC_ASSERT(4 == kRGBA_4444_GrPixelConfig); | 121 GR_STATIC_ASSERT(4 == kRGBA_4444_GrPixelConfig); |
122 GR_STATIC_ASSERT(5 == kRGBA_8888_GrPixelConfig); | 122 GR_STATIC_ASSERT(5 == kRGBA_8888_GrPixelConfig); |
123 GR_STATIC_ASSERT(6 == kBGRA_8888_GrPixelConfig); | 123 GR_STATIC_ASSERT(6 == kBGRA_8888_GrPixelConfig); |
124 GR_STATIC_ASSERT(SK_ARRAY_COUNT(kFlags) == kGrPixelConfigCnt); | 124 GR_STATIC_ASSERT(SK_ARRAY_COUNT(kFlags) == kGrPixelConfigCnt); |
125 } | 125 } |
126 | 126 |
127 #endif | 127 #endif |
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