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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 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 #include "SkImageInfo.h" | 8 #include "SkImageInfo.h" |
9 #include "SkReadBuffer.h" | 9 #include "SkReadBuffer.h" |
10 #include "SkWriteBuffer.h" | 10 #include "SkWriteBuffer.h" |
11 | 11 |
12 const uint8_t gPrivate_SkColorTypeBytesPerPixel[] = { | |
13 0, // Unknown | |
14 1, // Alpha_8 | |
15 2, // RGB_565 | |
16 2, // ARGB_4444 | |
17 4, // RGBA_8888 | |
18 4, // BGRA_8888 | |
19 1, // kIndex_8 | |
20 1, // kGray_8 | |
21 8, // kRGBA_F16 | |
22 }; | |
23 static_assert(SK_ARRAY_COUNT(gPrivate_SkColorTypeBytesPerPixel) == (size_t)(kLas
tEnum_SkColorType + 1), | |
24 "size_mismatch_with_SkColorType_enum"); | |
25 | |
26 const uint8_t gPrivate_SkColorTypeShiftPerPixel[] = { | |
27 0, // Unknown | |
28 0, // Alpha_8 | |
29 1, // RGB_565 | |
30 1, // ARGB_4444 | |
31 2, // RGBA_8888 | |
32 2, // BGRA_8888 | |
33 0, // kIndex_8 | |
34 0, // kGray_8 | |
35 3, // kRGBA_F16 | |
36 }; | |
37 static_assert(SK_ARRAY_COUNT(gPrivate_SkColorTypeShiftPerPixel) == (size_t)(kLas
tEnum_SkColorType + 1), | |
38 "size_mismatch_with_SkColorType_enum"); | |
39 | |
40 static bool profile_type_is_valid(SkColorProfileType profileType) { | 12 static bool profile_type_is_valid(SkColorProfileType profileType) { |
41 return (profileType >= 0) && (profileType <= kLastEnum_SkColorProfileType); | 13 return (profileType >= 0) && (profileType <= kLastEnum_SkColorProfileType); |
42 } | 14 } |
43 | 15 |
44 static bool alpha_type_is_valid(SkAlphaType alphaType) { | 16 static bool alpha_type_is_valid(SkAlphaType alphaType) { |
45 return (alphaType >= 0) && (alphaType <= kLastEnum_SkAlphaType); | 17 return (alphaType >= 0) && (alphaType <= kLastEnum_SkAlphaType); |
46 } | 18 } |
47 | 19 |
48 static bool color_type_is_valid(SkColorType colorType) { | 20 static bool color_type_is_valid(SkColorType colorType) { |
49 return (colorType >= 0) && (colorType <= kLastEnum_SkColorType); | 21 return (colorType >= 0) && (colorType <= kLastEnum_SkColorType); |
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142 } | 114 } |
143 // here x,y are either 0 or negative | 115 // here x,y are either 0 or negative |
144 fPixels = ((char*)fPixels - y * fRowBytes - x * fInfo.bytesPerPixel()); | 116 fPixels = ((char*)fPixels - y * fRowBytes - x * fInfo.bytesPerPixel()); |
145 // the intersect may have shrunk info's logical size | 117 // the intersect may have shrunk info's logical size |
146 fInfo = fInfo.makeWH(srcR.width(), srcR.height()); | 118 fInfo = fInfo.makeWH(srcR.width(), srcR.height()); |
147 fX = srcR.x(); | 119 fX = srcR.x(); |
148 fY = srcR.y(); | 120 fY = srcR.y(); |
149 | 121 |
150 return true; | 122 return true; |
151 } | 123 } |
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