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1 /* | 1 /* |
2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 | 8 |
9 #include "SkScalerContext.h" | 9 #include "SkScalerContext.h" |
10 #include "SkAutoPixmapStorage.h" | 10 #include "SkAutoPixmapStorage.h" |
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55 fRsbDelta = 0; | 55 fRsbDelta = 0; |
56 fLsbDelta = 0; | 56 fLsbDelta = 0; |
57 } | 57 } |
58 | 58 |
59 /////////////////////////////////////////////////////////////////////////////// | 59 /////////////////////////////////////////////////////////////////////////////// |
60 | 60 |
61 #ifdef SK_DEBUG | 61 #ifdef SK_DEBUG |
62 #define DUMP_RECx | 62 #define DUMP_RECx |
63 #endif | 63 #endif |
64 | 64 |
65 static SkFlattenable* load_flattenable(const SkDescriptor* desc, uint32_t tag, | 65 static SkFlattenable* load_flattenable(const SkDescriptor* desc, uint32_t tag) { |
66 SkFlattenable::Type ft) { | |
67 SkFlattenable* obj = nullptr; | 66 SkFlattenable* obj = nullptr; |
68 uint32_t len; | 67 uint32_t len; |
69 const void* data = desc->findEntry(tag, &len); | 68 const void* data = desc->findEntry(tag, &len); |
70 | 69 |
71 if (data) { | 70 if (data) { |
72 SkReadBuffer buffer(data, len); | 71 SkReadBuffer buffer(data, len); |
73 obj = buffer.readFlattenable(ft); | 72 obj = buffer.readFlattenable(); |
74 SkASSERT(buffer.offset() == buffer.size()); | 73 SkASSERT(buffer.offset() == buffer.size()); |
75 } | 74 } |
76 return obj; | 75 return obj; |
77 } | 76 } |
78 | 77 |
79 SkScalerContext::SkScalerContext(SkTypeface* typeface, const SkDescriptor* desc) | 78 SkScalerContext::SkScalerContext(SkTypeface* typeface, const SkDescriptor* desc) |
80 : fRec(*static_cast<const Rec*>(desc->findEntry(kRec_SkDescriptorTag, nullpt
r))) | 79 : fRec(*static_cast<const Rec*>(desc->findEntry(kRec_SkDescriptorTag, nullpt
r))) |
81 | 80 |
82 , fTypeface(SkRef(typeface)) | 81 , fTypeface(SkRef(typeface)) |
83 , fPathEffect(static_cast<SkPathEffect*>(load_flattenable(desc, kPathEffect_
SkDescriptorTag, | 82 , fPathEffect(static_cast<SkPathEffect*>(load_flattenable(desc, kPathEffect_
SkDescriptorTag))) |
84 SkFlattenable::kSkPathEffect_Type))
) | 83 , fMaskFilter(static_cast<SkMaskFilter*>(load_flattenable(desc, kMaskFilter_
SkDescriptorTag))) |
85 , fMaskFilter(static_cast<SkMaskFilter*>(load_flattenable(desc, kMaskFilter_
SkDescriptorTag, | 84 , fRasterizer(static_cast<SkRasterizer*>(load_flattenable(desc, kRasterizer_
SkDescriptorTag))) |
86 SkFlattenable::kSkMaskFilter_Type))
) | |
87 , fRasterizer(static_cast<SkRasterizer*>(load_flattenable(desc, kRasterizer_
SkDescriptorTag, | |
88 SkFlattenable::kSkRasterizer_Type))
) | |
89 // Initialize based on our settings. Subclasses can also force this. | 85 // Initialize based on our settings. Subclasses can also force this. |
90 , fGenerateImageFromPath(fRec.fFrameWidth > 0 || fPathEffect != nullptr || f
Rasterizer != nullptr) | 86 , fGenerateImageFromPath(fRec.fFrameWidth > 0 || fPathEffect != nullptr || f
Rasterizer != nullptr) |
91 | 87 |
92 , fPreBlend(fMaskFilter ? SkMaskGamma::PreBlend() : SkScalerContext::GetMask
PreBlend(fRec)) | 88 , fPreBlend(fMaskFilter ? SkMaskGamma::PreBlend() : SkScalerContext::GetMask
PreBlend(fRec)) |
93 , fPreBlendForFilter(fMaskFilter ? SkScalerContext::GetMaskPreBlend(fRec) | 89 , fPreBlendForFilter(fMaskFilter ? SkScalerContext::GetMaskPreBlend(fRec) |
94 : SkMaskGamma::PreBlend()) | 90 : SkMaskGamma::PreBlend()) |
95 { | 91 { |
96 #ifdef DUMP_REC | 92 #ifdef DUMP_REC |
97 desc->assertChecksum(); | 93 desc->assertChecksum(); |
98 SkDebugf("SkScalerContext checksum %x count %d length %d\n", | 94 SkDebugf("SkScalerContext checksum %x count %d length %d\n", |
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880 | 876 |
881 SkScalerContext* SkTypeface::createScalerContext(const SkDescriptor* desc, | 877 SkScalerContext* SkTypeface::createScalerContext(const SkDescriptor* desc, |
882 bool allowFailure) const { | 878 bool allowFailure) const { |
883 SkScalerContext* c = this->onCreateScalerContext(desc); | 879 SkScalerContext* c = this->onCreateScalerContext(desc); |
884 | 880 |
885 if (!c && !allowFailure) { | 881 if (!c && !allowFailure) { |
886 c = new SkScalerContext_Empty(const_cast<SkTypeface*>(this), desc); | 882 c = new SkScalerContext_Empty(const_cast<SkTypeface*>(this), desc); |
887 } | 883 } |
888 return c; | 884 return c; |
889 } | 885 } |
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