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| 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vdmx.h" | 5 #include "vdmx.h" |
| 6 | 6 |
| 7 // VDMX - Vertical Device Metrics | 7 // VDMX - Vertical Device Metrics |
| 8 // http://www.microsoft.com/typography/otspec/vdmx.htm | 8 // http://www.microsoft.com/typography/otspec/vdmx.htm |
| 9 | 9 |
| 10 #define TABLE_NAME "VDMX" | 10 #define TABLE_NAME "VDMX" |
| 11 | 11 |
| 12 #define DROP_THIS_TABLE(...) \ | 12 #define DROP_THIS_TABLE(...) \ |
| 13 do { \ | 13 do { \ |
| 14 OTS_FAILURE_MSG_(file, TABLE_NAME ": " __VA_ARGS__); \ | 14 OTS_FAILURE_MSG_(font->file, TABLE_NAME ": " __VA_ARGS__); \ |
| 15 OTS_FAILURE_MSG("Table discarded"); \ | 15 OTS_FAILURE_MSG("Table discarded"); \ |
| 16 delete file->vdmx; \ | 16 delete font->vdmx; \ |
| 17 file->vdmx = 0; \ | 17 font->vdmx = 0; \ |
| 18 } while (0) | 18 } while (0) |
| 19 | 19 |
| 20 namespace ots { | 20 namespace ots { |
| 21 | 21 |
| 22 bool ots_vdmx_parse(OpenTypeFile *file, const uint8_t *data, size_t length) { | 22 bool ots_vdmx_parse(Font *font, const uint8_t *data, size_t length) { |
| 23 Buffer table(data, length); | 23 Buffer table(data, length); |
| 24 file->vdmx = new OpenTypeVDMX; | 24 font->vdmx = new OpenTypeVDMX; |
| 25 OpenTypeVDMX * const vdmx = file->vdmx; | 25 OpenTypeVDMX * const vdmx = font->vdmx; |
| 26 | 26 |
| 27 if (!table.ReadU16(&vdmx->version) || | 27 if (!table.ReadU16(&vdmx->version) || |
| 28 !table.ReadU16(&vdmx->num_recs) || | 28 !table.ReadU16(&vdmx->num_recs) || |
| 29 !table.ReadU16(&vdmx->num_ratios)) { | 29 !table.ReadU16(&vdmx->num_ratios)) { |
| 30 return OTS_FAILURE_MSG("Failed to read table header"); | 30 return OTS_FAILURE_MSG("Failed to read table header"); |
| 31 } | 31 } |
| 32 | 32 |
| 33 if (vdmx->version > 1) { | 33 if (vdmx->version > 1) { |
| 34 DROP_THIS_TABLE("bad version: %u", vdmx->version); | 34 DROP_THIS_TABLE("bad version: %u", vdmx->version); |
| 35 return true; // continue transcoding | 35 return true; // continue transcoding |
| (...skipping 78 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 114 } | 114 } |
| 115 | 115 |
| 116 group.entries.push_back(vt); | 116 group.entries.push_back(vt); |
| 117 } | 117 } |
| 118 vdmx->groups.push_back(group); | 118 vdmx->groups.push_back(group); |
| 119 } | 119 } |
| 120 | 120 |
| 121 return true; | 121 return true; |
| 122 } | 122 } |
| 123 | 123 |
| 124 bool ots_vdmx_should_serialise(OpenTypeFile *file) { | 124 bool ots_vdmx_should_serialise(Font *font) { |
| 125 if (!file->glyf) return false; // this table is not for CFF fonts. | 125 if (!font->glyf) return false; // this table is not for CFF fonts. |
| 126 return file->vdmx != NULL; | 126 return font->vdmx != NULL; |
| 127 } | 127 } |
| 128 | 128 |
| 129 bool ots_vdmx_serialise(OTSStream *out, OpenTypeFile *file) { | 129 bool ots_vdmx_serialise(OTSStream *out, Font *font) { |
| 130 OpenTypeVDMX * const vdmx = file->vdmx; | 130 OpenTypeVDMX * const vdmx = font->vdmx; |
| 131 | 131 |
| 132 if (!out->WriteU16(vdmx->version) || | 132 if (!out->WriteU16(vdmx->version) || |
| 133 !out->WriteU16(vdmx->num_recs) || | 133 !out->WriteU16(vdmx->num_recs) || |
| 134 !out->WriteU16(vdmx->num_ratios)) { | 134 !out->WriteU16(vdmx->num_ratios)) { |
| 135 return OTS_FAILURE_MSG("Failed to write table header"); | 135 return OTS_FAILURE_MSG("Failed to write table header"); |
| 136 } | 136 } |
| 137 | 137 |
| 138 for (unsigned i = 0; i < vdmx->rat_ranges.size(); ++i) { | 138 for (unsigned i = 0; i < vdmx->rat_ranges.size(); ++i) { |
| 139 const OpenTypeVDMXRatioRecord& rec = vdmx->rat_ranges[i]; | 139 const OpenTypeVDMXRatioRecord& rec = vdmx->rat_ranges[i]; |
| 140 if (!out->Write(&rec.charset, 1) || | 140 if (!out->Write(&rec.charset, 1) || |
| (...skipping 23 matching lines...) Expand all Loading... |
| 164 !out->WriteS16(vt.y_max) || | 164 !out->WriteS16(vt.y_max) || |
| 165 !out->WriteS16(vt.y_min)) { | 165 !out->WriteS16(vt.y_min)) { |
| 166 return OTS_FAILURE_MSG("Failed to write group %d entry %d", i, j); | 166 return OTS_FAILURE_MSG("Failed to write group %d entry %d", i, j); |
| 167 } | 167 } |
| 168 } | 168 } |
| 169 } | 169 } |
| 170 | 170 |
| 171 return true; | 171 return true; |
| 172 } | 172 } |
| 173 | 173 |
| 174 void ots_vdmx_free(OpenTypeFile *file) { | 174 void ots_vdmx_reuse(Font *font, Font *other) { |
| 175 delete file->vdmx; | 175 font->vdmx = other->vdmx; |
| 176 font->vdmx_reused = true; |
| 177 } |
| 178 |
| 179 void ots_vdmx_free(Font *font) { |
| 180 delete font->vdmx; |
| 176 } | 181 } |
| 177 | 182 |
| 178 } // namespace ots | 183 } // namespace ots |
| 179 | 184 |
| 180 #undef TABLE_NAME | 185 #undef TABLE_NAME |
| 181 #undef DROP_THIS_TABLE | 186 #undef DROP_THIS_TABLE |
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