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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 #include "GrTemplates.h" | 10 #include "GrTemplates.h" |
11 #include "GrFontScaler.h" | 11 #include "GrFontScaler.h" |
12 #include "SkDescriptor.h" | 12 #include "SkDescriptor.h" |
13 #include "SkDistanceFieldGen.h" | 13 #include "SkDistanceFieldGen.h" |
14 #include "SkGlyphCache.h" | 14 #include "SkGlyphCache.h" |
15 | 15 |
16 /////////////////////////////////////////////////////////////////////////////// | 16 /////////////////////////////////////////////////////////////////////////////// |
17 | 17 |
18 GrFontDescKey::GrFontDescKey(const SkDescriptor& desc) : fHash(desc.getChecksum(
)) { | |
19 size_t size = desc.getLength(); | |
20 if (size <= sizeof(fStorage)) { | |
21 fDesc = GrTCast<SkDescriptor*>(fStorage); | |
22 } else { | |
23 fDesc = SkDescriptor::Alloc(size); | |
24 } | |
25 memcpy(fDesc, &desc, size); | |
26 } | |
27 | |
28 GrFontDescKey::~GrFontDescKey() { | |
29 if (fDesc != GrTCast<SkDescriptor*>(fStorage)) { | |
30 SkDescriptor::Free(fDesc); | |
31 } | |
32 } | |
33 | |
34 bool GrFontDescKey::lt(const GrFontDescKey& rh) const { | |
35 const SkDescriptor* srcDesc = (&rh)->fDesc; | |
36 size_t lenLH = fDesc->getLength(); | |
37 size_t lenRH = srcDesc->getLength(); | |
38 int cmp = memcmp(fDesc, srcDesc, SkTMin<size_t>(lenLH, lenRH)); | |
39 if (0 == cmp) { | |
40 return lenLH < lenRH; | |
41 } else { | |
42 return cmp < 0; | |
43 } | |
44 } | |
45 | |
46 bool GrFontDescKey::eq(const GrFontDescKey& rh) const { | |
47 const SkDescriptor* srcDesc = (&rh)->fDesc; | |
48 return fDesc->equals(*srcDesc); | |
49 } | |
50 | |
51 /////////////////////////////////////////////////////////////////////////////// | |
52 | |
53 GrFontScaler::GrFontScaler(SkGlyphCache* strike) { | 18 GrFontScaler::GrFontScaler(SkGlyphCache* strike) { |
54 fStrike = strike; | 19 fStrike = strike; |
55 fKey = NULL; | 20 fKey = NULL; |
56 } | 21 } |
57 | 22 |
58 GrFontScaler::~GrFontScaler() { | 23 GrFontScaler::~GrFontScaler() { |
59 SkSafeUnref(fKey); | 24 SkSafeUnref(fKey); |
60 } | 25 } |
61 | 26 |
62 GrMaskFormat GrFontScaler::getMaskFormat() const { | 27 GrMaskFormat GrFontScaler::getMaskFormat() const { |
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233 bool GrFontScaler::getGlyphPath(uint16_t glyphID, SkPath* path) { | 198 bool GrFontScaler::getGlyphPath(uint16_t glyphID, SkPath* path) { |
234 | 199 |
235 const SkGlyph& glyph = fStrike->getGlyphIDMetrics(glyphID); | 200 const SkGlyph& glyph = fStrike->getGlyphIDMetrics(glyphID); |
236 const SkPath* skPath = fStrike->findPath(glyph); | 201 const SkPath* skPath = fStrike->findPath(glyph); |
237 if (skPath) { | 202 if (skPath) { |
238 *path = *skPath; | 203 *path = *skPath; |
239 return true; | 204 return true; |
240 } | 205 } |
241 return false; | 206 return false; |
242 } | 207 } |
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