epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 2 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 3 | * Copyright 2011 Google Inc. |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 4 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 9 | |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 10 | #include "SkAdvancedTypefaceMetrics.h" |
| 11 | #include "SkTypes.h" |
| 12 | |
bungeman@google.com | b49d989 | 2012-08-16 17:35:58 +0000 | [diff] [blame] | 13 | #if defined(SK_BUILD_FOR_WIN) |
bungeman@google.com | 4284388 | 2012-10-30 14:15:32 +0000 | [diff] [blame] | 14 | #include <dwrite.h> |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 15 | #endif |
| 16 | |
djsollen@google.com | 856b984 | 2013-04-15 14:37:28 +0000 | [diff] [blame] | 17 | #if defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) |
| 18 | // forward declare structs needed for getAdvanceData() template for freetype |
bungeman | d3ebb48 | 2015-08-05 13:57:49 -0700 | [diff] [blame^] | 19 | struct FT_FaceRec_; |
djsollen@google.com | 856b984 | 2013-04-15 14:37:28 +0000 | [diff] [blame] | 20 | typedef struct FT_FaceRec_* FT_Face; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 21 | #endif |
| 22 | |
caryclark@google.com | ab0ab4a | 2011-06-01 20:15:20 +0000 | [diff] [blame] | 23 | #ifdef SK_BUILD_FOR_MAC |
yangsu@google.com | ccb74ea | 2011-06-21 13:09:32 +0000 | [diff] [blame] | 24 | #import <ApplicationServices/ApplicationServices.h> |
| 25 | #endif |
| 26 | |
| 27 | #ifdef SK_BUILD_FOR_IOS |
| 28 | #include <CoreText/CoreText.h> |
| 29 | #include <CoreGraphics/CoreGraphics.h> |
yangsu@google.com | 900d877 | 2011-06-24 18:56:00 +0000 | [diff] [blame] | 30 | #include <CoreFoundation/CoreFoundation.h> |
caryclark@google.com | ab0ab4a | 2011-06-01 20:15:20 +0000 | [diff] [blame] | 31 | #endif |
| 32 | |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 33 | namespace skia_advanced_typeface_metrics_utils { |
| 34 | |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 35 | const int16_t kInvalidAdvance = SK_MinS16; |
| 36 | const int16_t kDontCareAdvance = SK_MinS16 + 1; |
| 37 | |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 38 | template <typename Data> |
reed@google.com | b42403b | 2011-11-14 13:12:47 +0000 | [diff] [blame] | 39 | void stripUninterestingTrailingAdvancesFromRange( |
| 40 | SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* range) { |
| 41 | SkASSERT(false); |
| 42 | } |
| 43 | |
| 44 | template <> |
| 45 | void stripUninterestingTrailingAdvancesFromRange<int16_t>( |
| 46 | SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>* range) { |
| 47 | SkASSERT(range); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 48 | |
reed@google.com | b42403b | 2011-11-14 13:12:47 +0000 | [diff] [blame] | 49 | int expectedAdvanceCount = range->fEndId - range->fStartId + 1; |
| 50 | if (range->fAdvance.count() < expectedAdvanceCount) { |
| 51 | return; |
| 52 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 53 | |
reed@google.com | b42403b | 2011-11-14 13:12:47 +0000 | [diff] [blame] | 54 | for (int i = expectedAdvanceCount - 1; i >= 0; --i) { |
| 55 | if (range->fAdvance[i] != kDontCareAdvance && |
| 56 | range->fAdvance[i] != kInvalidAdvance && |
| 57 | range->fAdvance[i] != 0) { |
| 58 | range->fEndId = range->fStartId + i; |
| 59 | break; |
| 60 | } |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | template <typename Data> |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 65 | void resetRange(SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* range, |
| 66 | int startId) { |
| 67 | range->fStartId = startId; |
| 68 | range->fAdvance.setCount(0); |
| 69 | } |
| 70 | |
| 71 | template <typename Data> |
| 72 | SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* appendRange( |
commit-bot@chromium.org | e029440 | 2013-08-29 22:14:04 +0000 | [diff] [blame] | 73 | SkAutoTDelete<SkAdvancedTypefaceMetrics::AdvanceMetric<Data> >* nextSlot, |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 74 | int startId) { |
| 75 | nextSlot->reset(new SkAdvancedTypefaceMetrics::AdvanceMetric<Data>); |
| 76 | resetRange(nextSlot->get(), startId); |
| 77 | return nextSlot->get(); |
| 78 | } |
| 79 | |
| 80 | template <typename Data> |
reed@google.com | b42403b | 2011-11-14 13:12:47 +0000 | [diff] [blame] | 81 | void zeroWildcardsInRange( |
| 82 | SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* range) { |
| 83 | SkASSERT(false); |
| 84 | } |
| 85 | |
| 86 | template <> |
| 87 | void zeroWildcardsInRange<int16_t>( |
| 88 | SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>* range) { |
| 89 | SkASSERT(range); |
| 90 | if (range->fType != SkAdvancedTypefaceMetrics::WidthRange::kRange) { |
| 91 | return; |
| 92 | } |
| 93 | SkASSERT(range->fAdvance.count() == range->fEndId - range->fStartId + 1); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 94 | |
reed@google.com | b42403b | 2011-11-14 13:12:47 +0000 | [diff] [blame] | 95 | // Zero out wildcards. |
| 96 | for (int i = 0; i < range->fAdvance.count(); ++i) { |
| 97 | if (range->fAdvance[i] == kDontCareAdvance) { |
| 98 | range->fAdvance[i] = 0; |
| 99 | } |
| 100 | } |
| 101 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 102 | |
reed@google.com | b42403b | 2011-11-14 13:12:47 +0000 | [diff] [blame] | 103 | template <typename Data> |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 104 | void finishRange( |
| 105 | SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* range, |
| 106 | int endId, |
| 107 | typename SkAdvancedTypefaceMetrics::AdvanceMetric<Data>::MetricType |
| 108 | type) { |
| 109 | range->fEndId = endId; |
| 110 | range->fType = type; |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 111 | stripUninterestingTrailingAdvancesFromRange(range); |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 112 | int newLength; |
| 113 | if (type == SkAdvancedTypefaceMetrics::AdvanceMetric<Data>::kRange) { |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 114 | newLength = range->fEndId - range->fStartId + 1; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 115 | } else { |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 116 | if (range->fEndId == range->fStartId) { |
| 117 | range->fType = |
| 118 | SkAdvancedTypefaceMetrics::AdvanceMetric<Data>::kRange; |
| 119 | } |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 120 | newLength = 1; |
| 121 | } |
| 122 | SkASSERT(range->fAdvance.count() >= newLength); |
| 123 | range->fAdvance.setCount(newLength); |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 124 | zeroWildcardsInRange(range); |
| 125 | } |
| 126 | |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 127 | template <typename Data, typename FontHandle> |
| 128 | SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* getAdvanceData( |
| 129 | FontHandle fontHandle, |
| 130 | int num_glyphs, |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 131 | const uint32_t* subsetGlyphIDs, |
| 132 | uint32_t subsetGlyphIDsLength, |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 133 | bool (*getAdvance)(FontHandle fontHandle, int gId, Data* data)) { |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 134 | // Assuming that on average, the ASCII representation of an advance plus |
| 135 | // a space is 8 characters and the ASCII representation of a glyph id is 3 |
| 136 | // characters, then the following cut offs for using different range types |
| 137 | // apply: |
| 138 | // The cost of stopping and starting the range is 7 characers |
| 139 | // a. Removing 4 0's or don't care's is a win |
| 140 | // The cost of stopping and starting the range plus a run is 22 |
| 141 | // characters |
| 142 | // b. Removing 3 repeating advances is a win |
| 143 | // c. Removing 2 repeating advances and 3 don't cares is a win |
| 144 | // When not currently in a range the cost of a run over a range is 16 |
| 145 | // characaters, so: |
| 146 | // d. Removing a leading 0/don't cares is a win because it is omitted |
| 147 | // e. Removing 2 repeating advances is a win |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 148 | |
commit-bot@chromium.org | e029440 | 2013-08-29 22:14:04 +0000 | [diff] [blame] | 149 | SkAutoTDelete<SkAdvancedTypefaceMetrics::AdvanceMetric<Data> > result; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 150 | SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* curRange; |
vandebo@chromium.org | 34dae87 | 2011-05-10 23:25:03 +0000 | [diff] [blame] | 151 | SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* prevRange = NULL; |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 152 | Data lastAdvance = kInvalidAdvance; |
| 153 | int repeatedAdvances = 0; |
| 154 | int wildCardsInRun = 0; |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 155 | int trailingWildCards = 0; |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 156 | uint32_t subsetIndex = 0; |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 157 | |
| 158 | // Limit the loop count to glyph id ranges provided. |
| 159 | int firstIndex = 0; |
| 160 | int lastIndex = num_glyphs; |
| 161 | if (subsetGlyphIDs) { |
| 162 | firstIndex = static_cast<int>(subsetGlyphIDs[0]); |
| 163 | lastIndex = |
| 164 | static_cast<int>(subsetGlyphIDs[subsetGlyphIDsLength - 1]) + 1; |
| 165 | } |
| 166 | curRange = appendRange(&result, firstIndex); |
| 167 | |
| 168 | for (int gId = firstIndex; gId <= lastIndex; gId++) { |
| 169 | Data advance = kInvalidAdvance; |
| 170 | if (gId < lastIndex) { |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 171 | // Get glyph id only when subset is NULL, or the id is in subset. |
commit-bot@chromium.org | 4da3bfc | 2013-12-11 23:54:31 +0000 | [diff] [blame] | 172 | SkASSERT(!subsetGlyphIDs || (subsetIndex < subsetGlyphIDsLength && |
| 173 | static_cast<uint32_t>(gId) <= subsetGlyphIDs[subsetIndex])); |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 174 | if (!subsetGlyphIDs || |
| 175 | (subsetIndex < subsetGlyphIDsLength && |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 176 | static_cast<uint32_t>(gId) == subsetGlyphIDs[subsetIndex])) { |
edisonn@google.com | f91c63e | 2013-01-23 20:12:31 +0000 | [diff] [blame] | 177 | SkAssertResult(getAdvance(fontHandle, gId, &advance)); |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 178 | ++subsetIndex; |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 179 | } else { |
| 180 | advance = kDontCareAdvance; |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 181 | } |
vandebo@chromium.org | 34dae87 | 2011-05-10 23:25:03 +0000 | [diff] [blame] | 182 | } |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 183 | if (advance == lastAdvance) { |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 184 | repeatedAdvances++; |
| 185 | trailingWildCards = 0; |
| 186 | } else if (advance == kDontCareAdvance) { |
| 187 | wildCardsInRun++; |
| 188 | trailingWildCards++; |
| 189 | } else if (curRange->fAdvance.count() == |
| 190 | repeatedAdvances + 1 + wildCardsInRun) { // All in run. |
| 191 | if (lastAdvance == 0) { |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 192 | resetRange(curRange, gId); |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 193 | trailingWildCards = 0; |
| 194 | } else if (repeatedAdvances + 1 >= 2 || trailingWildCards >= 4) { |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 195 | finishRange(curRange, gId - 1, |
| 196 | SkAdvancedTypefaceMetrics::WidthRange::kRun); |
vandebo@chromium.org | 34dae87 | 2011-05-10 23:25:03 +0000 | [diff] [blame] | 197 | prevRange = curRange; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 198 | curRange = appendRange(&curRange->fNext, gId); |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 199 | trailingWildCards = 0; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 200 | } |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 201 | repeatedAdvances = 0; |
| 202 | wildCardsInRun = trailingWildCards; |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 203 | trailingWildCards = 0; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 204 | } else { |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 205 | if (lastAdvance == 0 && |
| 206 | repeatedAdvances + 1 + wildCardsInRun >= 4) { |
| 207 | finishRange(curRange, |
| 208 | gId - repeatedAdvances - wildCardsInRun - 2, |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 209 | SkAdvancedTypefaceMetrics::WidthRange::kRange); |
vandebo@chromium.org | 34dae87 | 2011-05-10 23:25:03 +0000 | [diff] [blame] | 210 | prevRange = curRange; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 211 | curRange = appendRange(&curRange->fNext, gId); |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 212 | trailingWildCards = 0; |
| 213 | } else if (trailingWildCards >= 4 && repeatedAdvances + 1 < 2) { |
| 214 | finishRange(curRange, |
| 215 | gId - trailingWildCards - 1, |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 216 | SkAdvancedTypefaceMetrics::WidthRange::kRange); |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 217 | prevRange = curRange; |
| 218 | curRange = appendRange(&curRange->fNext, gId); |
| 219 | trailingWildCards = 0; |
| 220 | } else if (lastAdvance != 0 && |
| 221 | (repeatedAdvances + 1 >= 3 || |
| 222 | (repeatedAdvances + 1 >= 2 && wildCardsInRun >= 3))) { |
| 223 | finishRange(curRange, |
| 224 | gId - repeatedAdvances - wildCardsInRun - 2, |
| 225 | SkAdvancedTypefaceMetrics::WidthRange::kRange); |
| 226 | curRange = |
| 227 | appendRange(&curRange->fNext, |
| 228 | gId - repeatedAdvances - wildCardsInRun - 1); |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 229 | curRange->fAdvance.append(1, &lastAdvance); |
| 230 | finishRange(curRange, gId - 1, |
| 231 | SkAdvancedTypefaceMetrics::WidthRange::kRun); |
vandebo@chromium.org | 34dae87 | 2011-05-10 23:25:03 +0000 | [diff] [blame] | 232 | prevRange = curRange; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 233 | curRange = appendRange(&curRange->fNext, gId); |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 234 | trailingWildCards = 0; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 235 | } |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 236 | repeatedAdvances = 0; |
| 237 | wildCardsInRun = trailingWildCards; |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 238 | trailingWildCards = 0; |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 239 | } |
| 240 | curRange->fAdvance.append(1, &advance); |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 241 | if (advance != kDontCareAdvance) { |
| 242 | lastAdvance = advance; |
| 243 | } |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 244 | } |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 245 | if (curRange->fStartId == lastIndex) { |
vandebo@chromium.org | 34dae87 | 2011-05-10 23:25:03 +0000 | [diff] [blame] | 246 | SkASSERT(prevRange); |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 247 | SkASSERT(prevRange->fNext->fStartId == lastIndex); |
commit-bot@chromium.org | e029440 | 2013-08-29 22:14:04 +0000 | [diff] [blame] | 248 | prevRange->fNext.free(); |
vandebo@chromium.org | 34dae87 | 2011-05-10 23:25:03 +0000 | [diff] [blame] | 249 | } else { |
vandebo@chromium.org | beb7fe1 | 2011-11-11 19:38:54 +0000 | [diff] [blame] | 250 | finishRange(curRange, lastIndex - 1, |
vandebo@chromium.org | 34dae87 | 2011-05-10 23:25:03 +0000 | [diff] [blame] | 251 | SkAdvancedTypefaceMetrics::WidthRange::kRange); |
| 252 | } |
commit-bot@chromium.org | e029440 | 2013-08-29 22:14:04 +0000 | [diff] [blame] | 253 | return result.detach(); |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | // Make AdvanceMetric template functions available for linking with typename |
| 257 | // WidthRange and VerticalAdvanceRange. |
bungeman@google.com | b49d989 | 2012-08-16 17:35:58 +0000 | [diff] [blame] | 258 | #if defined(SK_BUILD_FOR_WIN) |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 259 | template SkAdvancedTypefaceMetrics::WidthRange* getAdvanceData( |
| 260 | HDC hdc, |
| 261 | int num_glyphs, |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 262 | const uint32_t* subsetGlyphIDs, |
| 263 | uint32_t subsetGlyphIDsLength, |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 264 | bool (*getAdvance)(HDC hdc, int gId, int16_t* data)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 265 | template SkAdvancedTypefaceMetrics::WidthRange* getAdvanceData( |
| 266 | IDWriteFontFace* fontFace, |
| 267 | int num_glyphs, |
| 268 | const uint32_t* subsetGlyphIDs, |
| 269 | uint32_t subsetGlyphIDsLength, |
| 270 | bool (*getAdvance)(IDWriteFontFace* fontFace, int gId, int16_t* data)); |
djsollen@google.com | da95772 | 2011-11-16 17:00:46 +0000 | [diff] [blame] | 271 | #elif defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 272 | template SkAdvancedTypefaceMetrics::WidthRange* getAdvanceData( |
| 273 | FT_Face face, |
| 274 | int num_glyphs, |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 275 | const uint32_t* subsetGlyphIDs, |
| 276 | uint32_t subsetGlyphIDsLength, |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 277 | bool (*getAdvance)(FT_Face face, int gId, int16_t* data)); |
yangsu@google.com | ccb74ea | 2011-06-21 13:09:32 +0000 | [diff] [blame] | 278 | #elif defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS) |
caryclark@google.com | ab0ab4a | 2011-06-01 20:15:20 +0000 | [diff] [blame] | 279 | template SkAdvancedTypefaceMetrics::WidthRange* getAdvanceData( |
| 280 | CTFontRef ctFont, |
| 281 | int num_glyphs, |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 282 | const uint32_t* subsetGlyphIDs, |
| 283 | uint32_t subsetGlyphIDsLength, |
caryclark@google.com | ab0ab4a | 2011-06-01 20:15:20 +0000 | [diff] [blame] | 284 | bool (*getAdvance)(CTFontRef ctFont, int gId, int16_t* data)); |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 285 | #endif |
| 286 | template void resetRange( |
| 287 | SkAdvancedTypefaceMetrics::WidthRange* range, |
| 288 | int startId); |
| 289 | template SkAdvancedTypefaceMetrics::WidthRange* appendRange( |
commit-bot@chromium.org | e029440 | 2013-08-29 22:14:04 +0000 | [diff] [blame] | 290 | SkAutoTDelete<SkAdvancedTypefaceMetrics::WidthRange >* nextSlot, |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 291 | int startId); |
| 292 | template void finishRange<int16_t>( |
| 293 | SkAdvancedTypefaceMetrics::WidthRange* range, |
| 294 | int endId, |
| 295 | SkAdvancedTypefaceMetrics::WidthRange::MetricType type); |
| 296 | |
| 297 | template void resetRange( |
| 298 | SkAdvancedTypefaceMetrics::VerticalAdvanceRange* range, |
| 299 | int startId); |
| 300 | template SkAdvancedTypefaceMetrics::VerticalAdvanceRange* appendRange( |
commit-bot@chromium.org | e029440 | 2013-08-29 22:14:04 +0000 | [diff] [blame] | 301 | SkAutoTDelete<SkAdvancedTypefaceMetrics::VerticalAdvanceRange >* |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 302 | nextSlot, |
| 303 | int startId); |
| 304 | template void finishRange<SkAdvancedTypefaceMetrics::VerticalMetric>( |
| 305 | SkAdvancedTypefaceMetrics::VerticalAdvanceRange* range, |
| 306 | int endId, |
| 307 | SkAdvancedTypefaceMetrics::VerticalAdvanceRange::MetricType type); |
| 308 | |
djsollen@google.com | edae141 | 2012-06-25 17:01:46 +0000 | [diff] [blame] | 309 | // additional declaration needed for testing with a face of an unknown type |
| 310 | template SkAdvancedTypefaceMetrics::WidthRange* getAdvanceData( |
| 311 | void* fontData, |
| 312 | int num_glyphs, |
| 313 | const uint32_t* subsetGlyphIDs, |
| 314 | uint32_t subsetGlyphIDsLength, |
| 315 | bool (*getAdvance)(void* fontData, int gId, int16_t* data)); |
| 316 | |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 317 | } // namespace skia_advanced_typeface_metrics_utils |