1 /* |
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2 * Copyright © 2012 Google, Inc. |
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3 * |
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4 * This is part of HarfBuzz, a text shaping library. |
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5 * |
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6 * Permission is hereby granted, without written agreement and without |
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7 * license or royalty fees, to use, copy, modify, and distribute this |
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8 * software and its documentation for any purpose, provided that the |
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9 * above copyright notice and the following two paragraphs appear in |
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10 * all copies of this software. |
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11 * |
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12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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16 * DAMAGE. |
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17 * |
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18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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23 * |
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24 * Google Author(s): Behdad Esfahbod |
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25 */ |
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26 |
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27 #ifndef HB_OT_SHAPE_NORMALIZE_PRIVATE_HH |
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28 #define HB_OT_SHAPE_NORMALIZE_PRIVATE_HH |
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29 |
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30 #include "hb-private.hh" |
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31 |
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32 |
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33 /* buffer var allocations, used during the normalization process */ |
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34 #define glyph_index() var1.u32 |
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35 |
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36 struct hb_ot_shape_plan_t; |
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37 |
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38 enum hb_ot_shape_normalization_mode_t { |
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39 HB_OT_SHAPE_NORMALIZATION_MODE_NONE, |
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40 HB_OT_SHAPE_NORMALIZATION_MODE_DECOMPOSED, |
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41 HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS, /* never composes base-to-base */ |
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42 HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT, /* always fully decomposes and then recompose back */ |
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43 |
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44 HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT = HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS |
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45 }; |
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46 |
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47 HB_INTERNAL void _hb_ot_shape_normalize (const hb_ot_shape_plan_t *shaper, |
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48 hb_buffer_t *buffer, |
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49 hb_font_t *font); |
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50 |
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51 |
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52 struct hb_ot_shape_normalize_context_t |
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53 { |
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54 const hb_ot_shape_plan_t *plan; |
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55 hb_buffer_t *buffer; |
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56 hb_font_t *font; |
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57 hb_unicode_funcs_t *unicode; |
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58 bool (*decompose) (const hb_ot_shape_normalize_context_t *c, |
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59 hb_codepoint_t ab, |
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60 hb_codepoint_t *a, |
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61 hb_codepoint_t *b); |
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62 bool (*compose) (const hb_ot_shape_normalize_context_t *c, |
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63 hb_codepoint_t a, |
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64 hb_codepoint_t b, |
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65 hb_codepoint_t *ab); |
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66 }; |
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67 |
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68 |
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69 #endif /* HB_OT_SHAPE_NORMALIZE_PRIVATE_HH */ |
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