The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/core/SkFontDescriptor.cpp
gfx/skia/trunk/src/core/SkFontDescriptor.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:d85ae06bc22c |
|---|---|
| 1 /* | |
| 2 * Copyright 2012 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 "SkFontDescriptor.h" | |
| 9 #include "SkStream.h" | |
| 10 | |
| 11 enum { | |
| 12 // these must match the sfnt 'name' enums | |
| 13 kFontFamilyName = 0x01, | |
| 14 kFullName = 0x04, | |
| 15 kPostscriptName = 0x06, | |
| 16 | |
| 17 // These count backwards from 0xFF, so as not to collide with the SFNT | |
| 18 // defines for names in its 'name' table. | |
| 19 kFontFileName = 0xFE, | |
| 20 kSentinel = 0xFF, | |
| 21 }; | |
| 22 | |
| 23 SkFontDescriptor::SkFontDescriptor(SkTypeface::Style style) { | |
| 24 fStyle = style; | |
| 25 } | |
| 26 | |
| 27 static void read_string(SkStream* stream, SkString* string) { | |
| 28 const uint32_t length = SkToU32(stream->readPackedUInt()); | |
| 29 if (length > 0) { | |
| 30 string->resize(length); | |
| 31 stream->read(string->writable_str(), length); | |
| 32 } | |
| 33 } | |
| 34 | |
| 35 static void write_string(SkWStream* stream, const SkString& string, | |
| 36 uint32_t id) { | |
| 37 if (!string.isEmpty()) { | |
| 38 stream->writePackedUInt(id); | |
| 39 stream->writePackedUInt(string.size()); | |
| 40 stream->write(string.c_str(), string.size()); | |
| 41 } | |
| 42 } | |
| 43 | |
| 44 SkFontDescriptor::SkFontDescriptor(SkStream* stream) { | |
| 45 fStyle = (SkTypeface::Style)stream->readPackedUInt(); | |
| 46 | |
| 47 for (;;) { | |
| 48 switch (stream->readPackedUInt()) { | |
| 49 case kFontFamilyName: | |
| 50 read_string(stream, &fFamilyName); | |
| 51 break; | |
| 52 case kFullName: | |
| 53 read_string(stream, &fFullName); | |
| 54 break; | |
| 55 case kPostscriptName: | |
| 56 read_string(stream, &fPostscriptName); | |
| 57 break; | |
| 58 case kFontFileName: | |
| 59 read_string(stream, &fFontFileName); | |
| 60 break; | |
| 61 case kSentinel: | |
| 62 return; | |
| 63 default: | |
| 64 SkDEBUGFAIL("Unknown id used by a font descriptor"); | |
| 65 return; | |
| 66 } | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 void SkFontDescriptor::serialize(SkWStream* stream) { | |
| 71 stream->writePackedUInt(fStyle); | |
| 72 | |
| 73 write_string(stream, fFamilyName, kFontFamilyName); | |
| 74 write_string(stream, fFullName, kFullName); | |
| 75 write_string(stream, fPostscriptName, kPostscriptName); | |
| 76 write_string(stream, fFontFileName, kFontFileName); | |
| 77 | |
| 78 stream->writePackedUInt(kSentinel); | |
| 79 } |
