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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" |
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31 SkASSERT(0 == (packed >> 24)); | 31 SkASSERT(0 == (packed >> 24)); |
32 fProfileType = (SkColorProfileType)((packed >> 16) & 0xFF); | 32 fProfileType = (SkColorProfileType)((packed >> 16) & 0xFF); |
33 fAlphaType = (SkAlphaType)((packed >> 8) & 0xFF); | 33 fAlphaType = (SkAlphaType)((packed >> 8) & 0xFF); |
34 fColorType = (SkColorType)((packed >> 0) & 0xFF); | 34 fColorType = (SkColorType)((packed >> 0) & 0xFF); |
35 buffer.validate(profile_type_is_valid(fProfileType) && | 35 buffer.validate(profile_type_is_valid(fProfileType) && |
36 alpha_type_is_valid(fAlphaType) && | 36 alpha_type_is_valid(fAlphaType) && |
37 color_type_is_valid(fColorType)); | 37 color_type_is_valid(fColorType)); |
38 } | 38 } |
39 | 39 |
40 void SkImageInfo::flatten(SkWriteBuffer& buffer) const { | 40 void SkImageInfo::flatten(SkWriteBuffer& buffer) const { |
41 buffer.write32(fWidth); | 41 buffer.write32("fWidth", fWidth); |
42 buffer.write32(fHeight); | 42 buffer.write32("fHeight", fHeight); |
43 | 43 |
44 SkASSERT(0 == (fProfileType & ~0xFF)); | 44 SkASSERT(0 == (fProfileType & ~0xFF)); |
45 SkASSERT(0 == (fAlphaType & ~0xFF)); | 45 SkASSERT(0 == (fAlphaType & ~0xFF)); |
46 SkASSERT(0 == (fColorType & ~0xFF)); | 46 SkASSERT(0 == (fColorType & ~0xFF)); |
47 uint32_t packed = (fProfileType << 16) | (fAlphaType << 8) | fColorType; | 47 uint32_t packed = (fProfileType << 16) | (fAlphaType << 8) | fColorType; |
48 buffer.write32(packed); | 48 buffer.write32("packed", packed); |
49 } | 49 } |
50 | 50 |
51 bool SkColorTypeValidateAlphaType(SkColorType colorType, SkAlphaType alphaType, | 51 bool SkColorTypeValidateAlphaType(SkColorType colorType, SkAlphaType alphaType, |
52 SkAlphaType* canonical) { | 52 SkAlphaType* canonical) { |
53 switch (colorType) { | 53 switch (colorType) { |
54 case kUnknown_SkColorType: | 54 case kUnknown_SkColorType: |
55 alphaType = kUnknown_SkAlphaType; | 55 alphaType = kUnknown_SkAlphaType; |
56 break; | 56 break; |
57 case kAlpha_8_SkColorType: | 57 case kAlpha_8_SkColorType: |
58 if (kUnpremul_SkAlphaType == alphaType) { | 58 if (kUnpremul_SkAlphaType == alphaType) { |
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116 } | 116 } |
117 // here x,y are either 0 or negative | 117 // here x,y are either 0 or negative |
118 fPixels = ((char*)fPixels - y * fRowBytes - x * fInfo.bytesPerPixel()); | 118 fPixels = ((char*)fPixels - y * fRowBytes - x * fInfo.bytesPerPixel()); |
119 // the intersect may have shrunk info's logical size | 119 // the intersect may have shrunk info's logical size |
120 fInfo = fInfo.makeWH(srcR.width(), srcR.height()); | 120 fInfo = fInfo.makeWH(srcR.width(), srcR.height()); |
121 fX = srcR.x(); | 121 fX = srcR.x(); |
122 fY = srcR.y(); | 122 fY = srcR.y(); |
123 | 123 |
124 return true; | 124 return true; |
125 } | 125 } |
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