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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
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 "SkScalerContext.h" | 10 #include "SkScalerContext.h" |
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60 fLsbDelta = 0; | 60 fLsbDelta = 0; |
61 } | 61 } |
62 | 62 |
63 /////////////////////////////////////////////////////////////////////////////// | 63 /////////////////////////////////////////////////////////////////////////////// |
64 | 64 |
65 #ifdef SK_DEBUG | 65 #ifdef SK_DEBUG |
66 #define DUMP_RECx | 66 #define DUMP_RECx |
67 #endif | 67 #endif |
68 | 68 |
69 static SkFlattenable* load_flattenable(const SkDescriptor* desc, uint32_t tag, | 69 static SkFlattenable* load_flattenable(const SkDescriptor* desc, uint32_t tag, |
70 SkEffectType et) { | 70 SkFlattenable::Type ft) { |
71 SkFlattenable* obj = NULL; | 71 SkFlattenable* obj = NULL; |
72 uint32_t len; | 72 uint32_t len; |
73 const void* data = desc->findEntry(tag, &len); | 73 const void* data = desc->findEntry(tag, &len); |
74 | 74 |
75 if (data) { | 75 if (data) { |
76 SkOrderedReadBuffer buffer(data, len); | 76 SkOrderedReadBuffer buffer(data, len); |
77 obj = buffer.readFlattenable(et); | 77 obj = buffer.readFlattenable(ft); |
78 SkASSERT(buffer.offset() == buffer.size()); | 78 SkASSERT(buffer.offset() == buffer.size()); |
79 } | 79 } |
80 return obj; | 80 return obj; |
81 } | 81 } |
82 | 82 |
83 SkScalerContext::SkScalerContext(SkTypeface* typeface, const SkDescriptor* desc) | 83 SkScalerContext::SkScalerContext(SkTypeface* typeface, const SkDescriptor* desc) |
84 : fRec(*static_cast<const Rec*>(desc->findEntry(kRec_SkDescriptorTag, NULL))
) | 84 : fRec(*static_cast<const Rec*>(desc->findEntry(kRec_SkDescriptorTag, NULL))
) |
85 | 85 |
86 , fBaseGlyphCount(0) | 86 , fBaseGlyphCount(0) |
87 , fTypeface(SkRef(typeface)) | 87 , fTypeface(SkRef(typeface)) |
88 , fPathEffect(static_cast<SkPathEffect*>(load_flattenable(desc, kPathEffect_
SkDescriptorTag, kPathEffect_SkEffectType))) | 88 , fPathEffect(static_cast<SkPathEffect*>(load_flattenable(desc, kPathEffect_
SkDescriptorTag, |
89 , fMaskFilter(static_cast<SkMaskFilter*>(load_flattenable(desc, kMaskFilter_
SkDescriptorTag, kMaskFilter_SkEffectType))) | 89 SkFlattenable::kSkPathEffect_Type))
) |
90 , fRasterizer(static_cast<SkRasterizer*>(load_flattenable(desc, kRasterizer_
SkDescriptorTag, kRasterizer_SkEffectType))) | 90 , fMaskFilter(static_cast<SkMaskFilter*>(load_flattenable(desc, kMaskFilter_
SkDescriptorTag, |
91 | 91 SkFlattenable::kSkMaskFilter_Type))
) |
| 92 , fRasterizer(static_cast<SkRasterizer*>(load_flattenable(desc, kRasterizer_
SkDescriptorTag, |
| 93 SkFlattenable::kSkRasterizer_Type))
) |
92 // Initialize based on our settings. Subclasses can also force this. | 94 // Initialize based on our settings. Subclasses can also force this. |
93 , fGenerateImageFromPath(fRec.fFrameWidth > 0 || fPathEffect != NULL || fRas
terizer != NULL) | 95 , fGenerateImageFromPath(fRec.fFrameWidth > 0 || fPathEffect != NULL || fRas
terizer != NULL) |
94 | 96 |
95 , fNextContext(NULL) | 97 , fNextContext(NULL) |
96 | 98 |
97 , fPreBlend(fMaskFilter ? SkMaskGamma::PreBlend() : SkScalerContext::GetMask
PreBlend(fRec)) | 99 , fPreBlend(fMaskFilter ? SkMaskGamma::PreBlend() : SkScalerContext::GetMask
PreBlend(fRec)) |
98 , fPreBlendForFilter(fMaskFilter ? SkScalerContext::GetMaskPreBlend(fRec) | 100 , fPreBlendForFilter(fMaskFilter ? SkScalerContext::GetMaskPreBlend(fRec) |
99 : SkMaskGamma::PreBlend()) | 101 : SkMaskGamma::PreBlend()) |
100 { | 102 { |
101 #ifdef DUMP_REC | 103 #ifdef DUMP_REC |
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933 SkScalerContext* SkTypeface::createScalerContext(const SkDescriptor* desc, | 935 SkScalerContext* SkTypeface::createScalerContext(const SkDescriptor* desc, |
934 bool allowFailure) const { | 936 bool allowFailure) const { |
935 SkScalerContext* c = this->onCreateScalerContext(desc); | 937 SkScalerContext* c = this->onCreateScalerContext(desc); |
936 | 938 |
937 if (!c && !allowFailure) { | 939 if (!c && !allowFailure) { |
938 c = SkNEW_ARGS(SkScalerContext_Empty, | 940 c = SkNEW_ARGS(SkScalerContext_Empty, |
939 (const_cast<SkTypeface*>(this), desc)); | 941 (const_cast<SkTypeface*>(this), desc)); |
940 } | 942 } |
941 return c; | 943 return c; |
942 } | 944 } |
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