OLD | NEW |
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 |
(...skipping 23 matching lines...) Expand all Loading... |
34 #else | 34 #else |
35 #define GrColor_SHIFT_R 0 | 35 #define GrColor_SHIFT_R 0 |
36 #define GrColor_SHIFT_G 8 | 36 #define GrColor_SHIFT_G 8 |
37 #define GrColor_SHIFT_B 16 | 37 #define GrColor_SHIFT_B 16 |
38 #define GrColor_SHIFT_A 24 | 38 #define GrColor_SHIFT_A 24 |
39 #endif | 39 #endif |
40 | 40 |
41 /** | 41 /** |
42 * Pack 4 components (RGBA) into a GrColor int | 42 * Pack 4 components (RGBA) into a GrColor int |
43 */ | 43 */ |
44 static inline GrColor GrColorPackRGBA(unsigned r, unsigned g, | 44 static inline GrColor GrColorPackRGBA(unsigned r, unsigned g, unsigned b, unsign
ed a) { |
45 unsigned b, unsigned a) { | |
46 SkASSERT((uint8_t)r == r); | 45 SkASSERT((uint8_t)r == r); |
47 SkASSERT((uint8_t)g == g); | 46 SkASSERT((uint8_t)g == g); |
48 SkASSERT((uint8_t)b == b); | 47 SkASSERT((uint8_t)b == b); |
49 SkASSERT((uint8_t)a == a); | 48 SkASSERT((uint8_t)a == a); |
50 return (r << GrColor_SHIFT_R) | | 49 return (r << GrColor_SHIFT_R) | |
51 (g << GrColor_SHIFT_G) | | 50 (g << GrColor_SHIFT_G) | |
52 (b << GrColor_SHIFT_B) | | 51 (b << GrColor_SHIFT_B) | |
53 (a << GrColor_SHIFT_A); | 52 (a << GrColor_SHIFT_A); |
54 } | 53 } |
55 | 54 |
| 55 /** |
| 56 * Packs a color with an alpha channel replicated across all four channels. |
| 57 */ |
| 58 static inline GrColor GrColorPackA4(unsigned a) { |
| 59 SkASSERT((uint8_t)a == a); |
| 60 return (a << GrColor_SHIFT_R) | |
| 61 (a << GrColor_SHIFT_G) | |
| 62 (a << GrColor_SHIFT_B) | |
| 63 (a << GrColor_SHIFT_A); |
| 64 } |
| 65 |
56 // extract a component (byte) from a GrColor int | 66 // extract a component (byte) from a GrColor int |
57 | 67 |
58 #define GrColorUnpackR(color) (((color) >> GrColor_SHIFT_R) & 0xFF) | 68 #define GrColorUnpackR(color) (((color) >> GrColor_SHIFT_R) & 0xFF) |
59 #define GrColorUnpackG(color) (((color) >> GrColor_SHIFT_G) & 0xFF) | 69 #define GrColorUnpackG(color) (((color) >> GrColor_SHIFT_G) & 0xFF) |
60 #define GrColorUnpackB(color) (((color) >> GrColor_SHIFT_B) & 0xFF) | 70 #define GrColorUnpackB(color) (((color) >> GrColor_SHIFT_B) & 0xFF) |
61 #define GrColorUnpackA(color) (((color) >> GrColor_SHIFT_A) & 0xFF) | 71 #define GrColorUnpackA(color) (((color) >> GrColor_SHIFT_A) & 0xFF) |
62 | 72 |
63 /** | 73 /** |
64 * Since premultiplied means that alpha >= color, we construct a color with | 74 * Since premultiplied means that alpha >= color, we construct a color with |
65 * each component==255 and alpha == 0 to be "illegal" | 75 * each component==255 and alpha == 0 to be "illegal" |
(...skipping 121 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
187 GR_STATIC_ASSERT(8 == kETC1_GrPixelConfig); | 197 GR_STATIC_ASSERT(8 == kETC1_GrPixelConfig); |
188 GR_STATIC_ASSERT(9 == kLATC_GrPixelConfig); | 198 GR_STATIC_ASSERT(9 == kLATC_GrPixelConfig); |
189 GR_STATIC_ASSERT(10 == kR11_EAC_GrPixelConfig); | 199 GR_STATIC_ASSERT(10 == kR11_EAC_GrPixelConfig); |
190 GR_STATIC_ASSERT(11 == kASTC_12x12_GrPixelConfig); | 200 GR_STATIC_ASSERT(11 == kASTC_12x12_GrPixelConfig); |
191 GR_STATIC_ASSERT(12 == kRGBA_float_GrPixelConfig); | 201 GR_STATIC_ASSERT(12 == kRGBA_float_GrPixelConfig); |
192 GR_STATIC_ASSERT(13 == kAlpha_half_GrPixelConfig); | 202 GR_STATIC_ASSERT(13 == kAlpha_half_GrPixelConfig); |
193 GR_STATIC_ASSERT(SK_ARRAY_COUNT(kFlags) == kGrPixelConfigCnt); | 203 GR_STATIC_ASSERT(SK_ARRAY_COUNT(kFlags) == kGrPixelConfigCnt); |
194 } | 204 } |
195 | 205 |
196 #endif | 206 #endif |
OLD | NEW |