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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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56 fRsbDelta = 0; | 56 fRsbDelta = 0; |
57 fLsbDelta = 0; | 57 fLsbDelta = 0; |
58 } | 58 } |
59 | 59 |
60 /////////////////////////////////////////////////////////////////////////////// | 60 /////////////////////////////////////////////////////////////////////////////// |
61 | 61 |
62 #ifdef SK_DEBUG | 62 #ifdef SK_DEBUG |
63 #define DUMP_RECx | 63 #define DUMP_RECx |
64 #endif | 64 #endif |
65 | 65 |
66 static SkFlattenable* load_flattenable(const SkDescriptor* desc, uint32_t tag, | 66 static SkFlattenable* load_flattenable(const SkDescriptor* desc, uint32_t tag) { |
67 SkFlattenable::Type ft) { | |
68 SkFlattenable* obj = nullptr; | 67 SkFlattenable* obj = nullptr; |
69 uint32_t len; | 68 uint32_t len; |
70 const void* data = desc->findEntry(tag, &len); | 69 const void* data = desc->findEntry(tag, &len); |
71 | 70 |
72 if (data) { | 71 if (data) { |
73 SkReadBuffer buffer(data, len); | 72 SkReadBuffer buffer(data, len); |
74 obj = buffer.readFlattenable(ft); | 73 obj = buffer.readFlattenable(); |
75 SkASSERT(buffer.offset() == buffer.size()); | 74 SkASSERT(buffer.offset() == buffer.size()); |
76 } | 75 } |
77 return obj; | 76 return obj; |
78 } | 77 } |
79 | 78 |
80 SkScalerContext::SkScalerContext(SkTypeface* typeface, const SkDescriptor* desc) | 79 SkScalerContext::SkScalerContext(SkTypeface* typeface, const SkDescriptor* desc) |
81 : fRec(*static_cast<const Rec*>(desc->findEntry(kRec_SkDescriptorTag, nullpt
r))) | 80 : fRec(*static_cast<const Rec*>(desc->findEntry(kRec_SkDescriptorTag, nullpt
r))) |
82 | 81 |
83 , fTypeface(SkRef(typeface)) | 82 , fTypeface(SkRef(typeface)) |
84 , fPathEffect(static_cast<SkPathEffect*>(load_flattenable(desc, kPathEffect_
SkDescriptorTag, | 83 , fPathEffect(static_cast<SkPathEffect*>(load_flattenable(desc, kPathEffect_
SkDescriptorTag))) |
85 SkFlattenable::kSkPathEffect_Type))
) | 84 , fMaskFilter(static_cast<SkMaskFilter*>(load_flattenable(desc, kMaskFilter_
SkDescriptorTag))) |
86 , fMaskFilter(static_cast<SkMaskFilter*>(load_flattenable(desc, kMaskFilter_
SkDescriptorTag, | 85 , fRasterizer(static_cast<SkRasterizer*>(load_flattenable(desc, kRasterizer_
SkDescriptorTag))) |
87 SkFlattenable::kSkMaskFilter_Type))
) | |
88 , fRasterizer(static_cast<SkRasterizer*>(load_flattenable(desc, kRasterizer_
SkDescriptorTag, | |
89 SkFlattenable::kSkRasterizer_Type))
) | |
90 // Initialize based on our settings. Subclasses can also force this. | 86 // Initialize based on our settings. Subclasses can also force this. |
91 , fGenerateImageFromPath(fRec.fFrameWidth > 0 || fPathEffect != nullptr || f
Rasterizer != nullptr) | 87 , fGenerateImageFromPath(fRec.fFrameWidth > 0 || fPathEffect != nullptr || f
Rasterizer != nullptr) |
92 | 88 |
93 , fPreBlend(fMaskFilter ? SkMaskGamma::PreBlend() : SkScalerContext::GetMask
PreBlend(fRec)) | 89 , fPreBlend(fMaskFilter ? SkMaskGamma::PreBlend() : SkScalerContext::GetMask
PreBlend(fRec)) |
94 , fPreBlendForFilter(fMaskFilter ? SkScalerContext::GetMaskPreBlend(fRec) | 90 , fPreBlendForFilter(fMaskFilter ? SkScalerContext::GetMaskPreBlend(fRec) |
95 : SkMaskGamma::PreBlend()) | 91 : SkMaskGamma::PreBlend()) |
96 { | 92 { |
97 #ifdef DUMP_REC | 93 #ifdef DUMP_REC |
98 desc->assertChecksum(); | 94 desc->assertChecksum(); |
99 SkDebugf("SkScalerContext checksum %x count %d length %d\n", | 95 SkDebugf("SkScalerContext checksum %x count %d length %d\n", |
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881 | 877 |
882 SkScalerContext* SkTypeface::createScalerContext(const SkDescriptor* desc, | 878 SkScalerContext* SkTypeface::createScalerContext(const SkDescriptor* desc, |
883 bool allowFailure) const { | 879 bool allowFailure) const { |
884 SkScalerContext* c = this->onCreateScalerContext(desc); | 880 SkScalerContext* c = this->onCreateScalerContext(desc); |
885 | 881 |
886 if (!c && !allowFailure) { | 882 if (!c && !allowFailure) { |
887 c = new SkScalerContext_Empty(const_cast<SkTypeface*>(this), desc); | 883 c = new SkScalerContext_Empty(const_cast<SkTypeface*>(this), desc); |
888 } | 884 } |
889 return c; | 885 return c; |
890 } | 886 } |
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