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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 #ifndef SkGlyph_DEFINED | 8 #ifndef SkGlyph_DEFINED |
| 9 #define SkGlyph_DEFINED | 9 #define SkGlyph_DEFINED |
| 10 | 10 |
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| 46 int8_t fForceBW; | 46 int8_t fForceBW; |
| 47 | 47 |
| 48 void initWithGlyphID(uint32_t glyph_id) { | 48 void initWithGlyphID(uint32_t glyph_id) { |
| 49 this->initCommon(MakeID(glyph_id)); | 49 this->initCommon(MakeID(glyph_id)); |
| 50 } | 50 } |
| 51 | 51 |
| 52 void initGlyphIdFrom(const SkGlyph& glyph) { | 52 void initGlyphIdFrom(const SkGlyph& glyph) { |
| 53 this->initCommon(glyph.fID); | 53 this->initCommon(glyph.fID); |
| 54 } | 54 } |
| 55 | 55 |
| 56 void initGlyphFromCombinedID(uint32_t combined_id) { |
| 57 this->initCommon(combined_id); |
| 58 } |
| 59 |
| 56 /** | 60 /** |
| 57 * Compute the rowbytes for the specified width and mask-format. | 61 * Compute the rowbytes for the specified width and mask-format. |
| 58 */ | 62 */ |
| 59 static unsigned ComputeRowBytes(unsigned width, SkMask::Format format) { | 63 static unsigned ComputeRowBytes(unsigned width, SkMask::Format format) { |
| 60 unsigned rb = width; | 64 unsigned rb = width; |
| 61 if (SkMask::kBW_Format == format) { | 65 if (SkMask::kBW_Format == format) { |
| 62 rb = (rb + 7) >> 3; | 66 rb = (rb + 7) >> 3; |
| 63 } else if (SkMask::kARGB32_Format == format) { | 67 } else if (SkMask::kARGB32_Format == format) { |
| 64 rb <<= 2; | 68 rb <<= 2; |
| 65 } else if (SkMask::kLCD16_Format == format) { | 69 } else if (SkMask::kLCD16_Format == format) { |
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| 99 } | 103 } |
| 100 | 104 |
| 101 size_t computeImageSize() const; | 105 size_t computeImageSize() const; |
| 102 | 106 |
| 103 /** Call this to set all of the metrics fields to 0 (e.g. if the scaler | 107 /** Call this to set all of the metrics fields to 0 (e.g. if the scaler |
| 104 encounters an error measuring a glyph). Note: this does not alter the | 108 encounters an error measuring a glyph). Note: this does not alter the |
| 105 fImage, fPath, fID, fMaskFormat fields. | 109 fImage, fPath, fID, fMaskFormat fields. |
| 106 */ | 110 */ |
| 107 void zeroMetrics(); | 111 void zeroMetrics(); |
| 108 | 112 |
| 109 | |
| 110 void toMask(SkMask* mask) const; | 113 void toMask(SkMask* mask) const; |
| 111 | 114 |
| 112 private: | 115 private: |
| 113 // TODO(herb) remove friend statement after SkGlyphCache cleanup. | 116 // TODO(herb) remove friend statement after SkGlyphCache cleanup. |
| 114 friend class SkGlyphCache; | 117 friend class SkGlyphCache; |
| 115 | 118 |
| 116 void initCommon(uint32_t id) { | 119 void initCommon(uint32_t id) { |
| 117 fID = id; | 120 fID = id; |
| 118 fImage = NULL; | 121 fImage = NULL; |
| 119 fPath = NULL; | 122 fPath = NULL; |
| 120 fMaskFormat = MASK_FORMAT_UNKNOWN; | 123 fMaskFormat = MASK_FORMAT_UNKNOWN; |
| 121 fForceBW = 0; | 124 fForceBW = 0; |
| 122 } | 125 } |
| 126 |
| 123 static unsigned ID2Code(uint32_t id) { | 127 static unsigned ID2Code(uint32_t id) { |
| 124 return (id & kCodeMask); | 128 return id & kCodeMask; |
| 125 } | 129 } |
| 126 | 130 |
| 127 static unsigned ID2SubX(uint32_t id) { | 131 static unsigned ID2SubX(uint32_t id) { |
| 128 return id >> (kSubShift + kSubShiftX); | 132 return id >> (kSubShift + kSubShiftX); |
| 129 } | 133 } |
| 130 | 134 |
| 131 static unsigned ID2SubY(uint32_t id) { | 135 static unsigned ID2SubY(uint32_t id) { |
| 132 return (id >> (kSubShift + kSubShiftY)) & kSubMask; | 136 return (id >> (kSubShift + kSubShiftY)) & kSubMask; |
| 133 } | 137 } |
| 134 | 138 |
| 135 static unsigned FixedToSub(SkFixed n) { | 139 static unsigned FixedToSub(SkFixed n) { |
| 136 return (n >> (16 - kSubBits)) & kSubMask; | 140 return (n >> (16 - kSubBits)) & kSubMask; |
| 137 } | 141 } |
| 138 | 142 |
| 139 static SkFixed SubToFixed(unsigned sub) { | 143 static SkFixed SubToFixed(unsigned sub) { |
| 140 SkASSERT(sub <= kSubMask); | 144 SkASSERT(sub <= kSubMask); |
| 141 return sub << (16 - kSubBits); | 145 return sub << (16 - kSubBits); |
| 142 } | 146 } |
| 143 | 147 |
| 144 static uint32_t MakeID(unsigned code) { | 148 static uint32_t MakeID(unsigned code) { |
| 149 SkASSERT(code <= kCodeMask); |
| 145 return code; | 150 return code; |
| 146 } | 151 } |
| 147 | 152 |
| 148 static uint32_t MakeID(unsigned code, SkFixed x, SkFixed y) { | 153 static uint32_t MakeID(unsigned code, SkFixed x, SkFixed y) { |
| 149 SkASSERT(code <= kCodeMask); | 154 SkASSERT(code <= kCodeMask); |
| 150 x = FixedToSub(x); | 155 x = FixedToSub(x); |
| 151 y = FixedToSub(y); | 156 y = FixedToSub(y); |
| 152 return (x << (kSubShift + kSubShiftX)) | | 157 return (x << (kSubShift + kSubShiftX)) | |
| 153 (y << (kSubShift + kSubShiftY)) | | 158 (y << (kSubShift + kSubShiftY)) | |
| 154 code; | 159 code; |
| 155 } | 160 } |
| 156 | 161 |
| 157 // FIXME - This is needed because the Android frame work directly | 162 // FIXME - This is needed because the Android frame work directly |
| 158 // accesses fID. Remove when fID accesses are cleaned up. | 163 // accesses fID. Remove when fID accesses are cleaned up. |
| 159 #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK | 164 #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK |
| 160 public: | 165 public: |
| 161 #endif | 166 #endif |
| 162 uint32_t fID; | 167 uint32_t fID; |
| 163 }; | 168 }; |
| 164 | 169 |
| 165 #endif | 170 #endif |
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