The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/core/SkImageInfo.cpp
gfx/skia/trunk/src/core/SkImageInfo.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
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| -1:000000000000 | 0:53bf1cbaaae9 |
|---|---|
| 1 /* | |
| 2 * Copyright 2010 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #include "SkImageInfo.h" | |
| 9 #include "SkReadBuffer.h" | |
| 10 #include "SkWriteBuffer.h" | |
| 11 | |
| 12 static bool alpha_type_is_valid(SkAlphaType alphaType) { | |
| 13 return (alphaType >= 0) && (alphaType <= kLastEnum_SkAlphaType); | |
| 14 } | |
| 15 | |
| 16 static bool color_type_is_valid(SkColorType colorType) { | |
| 17 return (colorType >= 0) && (colorType <= kLastEnum_SkColorType); | |
| 18 } | |
| 19 | |
| 20 void SkImageInfo::unflatten(SkReadBuffer& buffer) { | |
| 21 fWidth = buffer.read32(); | |
| 22 fHeight = buffer.read32(); | |
| 23 | |
| 24 uint32_t packed = buffer.read32(); | |
| 25 SkASSERT(0 == (packed >> 16)); | |
| 26 fAlphaType = (SkAlphaType)((packed >> 8) & 0xFF); | |
| 27 fColorType = (SkColorType)((packed >> 0) & 0xFF); | |
| 28 buffer.validate(alpha_type_is_valid(fAlphaType) && | |
| 29 color_type_is_valid(fColorType)); | |
| 30 } | |
| 31 | |
| 32 void SkImageInfo::flatten(SkWriteBuffer& buffer) const { | |
| 33 buffer.write32(fWidth); | |
| 34 buffer.write32(fHeight); | |
| 35 | |
| 36 SkASSERT(0 == (fAlphaType & ~0xFF)); | |
| 37 SkASSERT(0 == (fColorType & ~0xFF)); | |
| 38 uint32_t packed = (fAlphaType << 8) | fColorType; | |
| 39 buffer.write32(packed); | |
| 40 } |
