18fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod/* 22409d5f8d7dd8b535ce5ea29e933f7db27d33793Behdad Esfahbod * Copyright © 2009 Red Hat, Inc. 32409d5f8d7dd8b535ce5ea29e933f7db27d33793Behdad Esfahbod * Copyright © 2009 Keith Stribley 48fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * 5c755cb3e3ac55156d0d2ec05adea7a650b97cc41Behdad Esfahbod * This is part of HarfBuzz, a text shaping library. 68fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * 78fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * Permission is hereby granted, without written agreement and without 88fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * license or royalty fees, to use, copy, modify, and distribute this 98fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * software and its documentation for any purpose, provided that the 108fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * above copyright notice and the following two paragraphs appear in 118fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * all copies of this software. 128fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * 138fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 148fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 158fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 168fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 178fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * DAMAGE. 188fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * 198fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 208fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 218fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 228fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 238fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 248fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * 258fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod * Red Hat Author(s): Behdad Esfahbod 268fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod */ 278fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 28c57d454accff66e5f2c58006e8fb40bc020b6182Behdad Esfahbod#include "hb-private.hh" 298fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 308fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod#include "hb-ft.h" 318fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 32c57d454accff66e5f2c58006e8fb40bc020b6182Behdad Esfahbod#include "hb-font-private.hh" 338fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 340b7e4d9f20b3ed947d0c441ca59b43c4097cdb0eBehdad Esfahbod#include FT_ADVANCES_H 358fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod#include FT_TRUETYPE_TABLES_H 368fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 37acdba3f90b232fc12fcb200dca2584481b339118Behdad Esfahbod 38acdba3f90b232fc12fcb200dca2584481b339118Behdad Esfahbod 3938b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod#ifndef HB_DEBUG_FT 4038b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod#define HB_DEBUG_FT (HB_DEBUG+0) 4138b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod#endif 4238b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 4338b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 44744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod/* TODO: 45744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * 46744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * In general, this file does a fine job of what it's supposed to do. 47744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * There are, however, things that need more work: 48744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * 49744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * - We don't handle any load_flags. That definitely has API implications. :( 50744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * I believe hb_ft_font_create() should take load_flags input. 510b7e4d9f20b3ed947d0c441ca59b43c4097cdb0eBehdad Esfahbod * In particular, FT_Get_Advance() without the NO_HINTING flag seems to be 520b7e4d9f20b3ed947d0c441ca59b43c4097cdb0eBehdad Esfahbod * buggy. 53744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * 54f34aaba8687a20794835e2dc878c52d1b53e6f85Behdad Esfahbod * FreeType works in 26.6 mode. Clients can decide to use that mode, and everything 55f34aaba8687a20794835e2dc878c52d1b53e6f85Behdad Esfahbod * would work fine. However, we also abuse this API for performing in font-space, 56f34aaba8687a20794835e2dc878c52d1b53e6f85Behdad Esfahbod * but don't pass the correct flags to FreeType. We just abuse the no-hinting mode 57f34aaba8687a20794835e2dc878c52d1b53e6f85Behdad Esfahbod * for that, such that no rounding etc happens. As such, we don't set ppem, and 58f34aaba8687a20794835e2dc878c52d1b53e6f85Behdad Esfahbod * pass NO_HINTING around. This seems to work best, until we go ahead and add a full 59f34aaba8687a20794835e2dc878c52d1b53e6f85Behdad Esfahbod * load_flags API. 60f34aaba8687a20794835e2dc878c52d1b53e6f85Behdad Esfahbod * 61744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * - We don't handle / allow for emboldening / obliqueing. 62744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * 63190e19e6842875c7a487c66235300ee6b42fb5daBehdad Esfahbod * - In the future, we should add constructors to create fonts in font space? 64744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod * 65323190c27b80cddc9b3c42d19f1f243e2acb2411Behdad Esfahbod * - FT_Load_Glyph() is exteremely costly. Do something about it? 66744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod */ 67744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 68744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 69b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbodstatic hb_bool_t 70744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbodhb_ft_get_glyph (hb_font_t *font HB_UNUSED, 71744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod void *font_data, 72744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod hb_codepoint_t unicode, 73744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod hb_codepoint_t variation_selector, 74744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod hb_codepoint_t *glyph, 75744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod void *user_data HB_UNUSED) 76744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 778fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod{ 78b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod FT_Face ft_face = (FT_Face) font_data; 793b59306b858d31d97be0ea8c64461de1d0d03572Behdad Esfahbod 80744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod if (unlikely (variation_selector)) { 81744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod *glyph = FT_Face_GetCharVariantIndex (ft_face, unicode, variation_selector); 8279d1007a501fd63c0ba4d51038c513e6b8b94740Behdad Esfahbod return *glyph != 0; 83744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod } 84744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 85744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod *glyph = FT_Get_Char_Index (ft_face, unicode); 86744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod return *glyph != 0; 87744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod} 88744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 892d8ebcb9d089c2cfbefac71ca6350e2703ab13e3Behdad Esfahbodstatic hb_position_t 90744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbodhb_ft_get_glyph_h_advance (hb_font_t *font HB_UNUSED, 91744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod void *font_data, 92744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod hb_codepoint_t glyph, 93744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod void *user_data HB_UNUSED) 94744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod{ 95744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod FT_Face ft_face = (FT_Face) font_data; 960b7e4d9f20b3ed947d0c441ca59b43c4097cdb0eBehdad Esfahbod int load_flags = FT_LOAD_DEFAULT | FT_LOAD_NO_HINTING; 970b7e4d9f20b3ed947d0c441ca59b43c4097cdb0eBehdad Esfahbod FT_Fixed v; 983b59306b858d31d97be0ea8c64461de1d0d03572Behdad Esfahbod 990b7e4d9f20b3ed947d0c441ca59b43c4097cdb0eBehdad Esfahbod if (unlikely (FT_Get_Advance (ft_face, glyph, load_flags, &v))) 1002d8ebcb9d089c2cfbefac71ca6350e2703ab13e3Behdad Esfahbod return 0; 101b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod 102a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod if (font->x_scale < 0) 103a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod v = -v; 104a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod 105755b44cce6dc23376a3cf0212893609231fa4967Behdad Esfahbod return (v + (1<<9)) >> 10; 106744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod} 107b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod 1082d8ebcb9d089c2cfbefac71ca6350e2703ab13e3Behdad Esfahbodstatic hb_position_t 109744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbodhb_ft_get_glyph_v_advance (hb_font_t *font HB_UNUSED, 110744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod void *font_data, 111744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod hb_codepoint_t glyph, 112744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod void *user_data HB_UNUSED) 113744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod{ 114744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod FT_Face ft_face = (FT_Face) font_data; 1150b7e4d9f20b3ed947d0c441ca59b43c4097cdb0eBehdad Esfahbod int load_flags = FT_LOAD_DEFAULT | FT_LOAD_NO_HINTING | FT_LOAD_VERTICAL_LAYOUT; 1160b7e4d9f20b3ed947d0c441ca59b43c4097cdb0eBehdad Esfahbod FT_Fixed v; 117b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod 1180b7e4d9f20b3ed947d0c441ca59b43c4097cdb0eBehdad Esfahbod if (unlikely (FT_Get_Advance (ft_face, glyph, load_flags, &v))) 1192d8ebcb9d089c2cfbefac71ca6350e2703ab13e3Behdad Esfahbod return 0; 120b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod 1218b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod /* Note: FreeType's vertical metrics grows downward while other FreeType coordinates 1228b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod * have a Y growing upward. Hence the extra negation. */ 123755b44cce6dc23376a3cf0212893609231fa4967Behdad Esfahbod return (-v + (1<<9)) >> 10; 1248fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod} 1258fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 126744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbodstatic hb_bool_t 1277e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbodhb_ft_get_glyph_h_origin (hb_font_t *font HB_UNUSED, 1287e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod void *font_data HB_UNUSED, 1297e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod hb_codepoint_t glyph HB_UNUSED, 130190981851fe2bb6479b5c72451279f66fe4f6e23Behdad Esfahbod hb_position_t *x HB_UNUSED, 131190981851fe2bb6479b5c72451279f66fe4f6e23Behdad Esfahbod hb_position_t *y HB_UNUSED, 1327e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod void *user_data HB_UNUSED) 1337e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod{ 1347e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod /* We always work in the horizontal coordinates. */ 1350594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod return true; 1367e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod} 1377e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod 1387e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbodstatic hb_bool_t 139744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbodhb_ft_get_glyph_v_origin (hb_font_t *font HB_UNUSED, 140744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod void *font_data, 141744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod hb_codepoint_t glyph, 142190981851fe2bb6479b5c72451279f66fe4f6e23Behdad Esfahbod hb_position_t *x, 143190981851fe2bb6479b5c72451279f66fe4f6e23Behdad Esfahbod hb_position_t *y, 144744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod void *user_data HB_UNUSED) 145502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod{ 146b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod FT_Face ft_face = (FT_Face) font_data; 1478afaf096870d7895cf2fffb6438b02c0ad1b6c52Behdad Esfahbod int load_flags = FT_LOAD_DEFAULT | FT_LOAD_NO_HINTING; 148502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod 149744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod if (unlikely (FT_Load_Glyph (ft_face, glyph, load_flags))) 1500594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod return false; 151502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod 1528b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod /* Note: FreeType's vertical metrics grows downward while other FreeType coordinates 1538b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod * have a Y growing upward. Hence the extra negation. */ 1548b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod *x = ft_face->glyph->metrics.horiBearingX - ft_face->glyph->metrics.vertBearingX; 1558b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod *y = ft_face->glyph->metrics.horiBearingY - (-ft_face->glyph->metrics.vertBearingY); 1568b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod 1570594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod return true; 158502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod} 159502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod 1602d8ebcb9d089c2cfbefac71ca6350e2703ab13e3Behdad Esfahbodstatic hb_position_t 161cdf7444505a7ae49d20f9ba6776dea92c1fde2a6Behdad Esfahbodhb_ft_get_glyph_h_kerning (hb_font_t *font, 1627e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod void *font_data, 1637e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod hb_codepoint_t left_glyph, 1647e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod hb_codepoint_t right_glyph, 1657e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod void *user_data HB_UNUSED) 166744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod{ 167744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod FT_Face ft_face = (FT_Face) font_data; 16860fbb36096e344e9af79409ce8cfe3f1f7b0d321Behdad Esfahbod FT_Vector kerningv; 169744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 170cdf7444505a7ae49d20f9ba6776dea92c1fde2a6Behdad Esfahbod FT_Kerning_Mode mode = font->x_ppem ? FT_KERNING_DEFAULT : FT_KERNING_UNFITTED; 171cdf7444505a7ae49d20f9ba6776dea92c1fde2a6Behdad Esfahbod if (FT_Get_Kerning (ft_face, left_glyph, right_glyph, mode, &kerningv)) 1722d8ebcb9d089c2cfbefac71ca6350e2703ab13e3Behdad Esfahbod return 0; 173744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 1742d8ebcb9d089c2cfbefac71ca6350e2703ab13e3Behdad Esfahbod return kerningv.x; 175744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod} 176744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 1772d8ebcb9d089c2cfbefac71ca6350e2703ab13e3Behdad Esfahbodstatic hb_position_t 1787e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbodhb_ft_get_glyph_v_kerning (hb_font_t *font HB_UNUSED, 1797e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod void *font_data HB_UNUSED, 1807e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod hb_codepoint_t top_glyph HB_UNUSED, 1817e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod hb_codepoint_t bottom_glyph HB_UNUSED, 1827e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod void *user_data HB_UNUSED) 183744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod{ 184744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod /* FreeType API doesn't support vertical kerning */ 1852d8ebcb9d089c2cfbefac71ca6350e2703ab13e3Behdad Esfahbod return 0; 186744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod} 187744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 188744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbodstatic hb_bool_t 189502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbodhb_ft_get_glyph_extents (hb_font_t *font HB_UNUSED, 190b46782780690e26a8221e2d63dd224159aebe413Behdad Esfahbod void *font_data, 191502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod hb_codepoint_t glyph, 192b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod hb_glyph_extents_t *extents, 193b46782780690e26a8221e2d63dd224159aebe413Behdad Esfahbod void *user_data HB_UNUSED) 194502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod{ 195b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod FT_Face ft_face = (FT_Face) font_data; 1968afaf096870d7895cf2fffb6438b02c0ad1b6c52Behdad Esfahbod int load_flags = FT_LOAD_DEFAULT | FT_LOAD_NO_HINTING; 197502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod 198744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod if (unlikely (FT_Load_Glyph (ft_face, glyph, load_flags))) 1990594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod return false; 200744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod 201744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod extents->x_bearing = ft_face->glyph->metrics.horiBearingX; 202744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod extents->y_bearing = ft_face->glyph->metrics.horiBearingY; 203744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod extents->width = ft_face->glyph->metrics.width; 20421756934a15e31dc243e2b6d80adec5752477652Behdad Esfahbod extents->height = -ft_face->glyph->metrics.height; 2050594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod return true; 206502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod} 207502f4cba3e0bcd625d31f8fd295b8b18e2d02a5aBehdad Esfahbod 2080fd8c2f1be693616f19f2f1526369874763d6cf6Behdad Esfahbodstatic hb_bool_t 2097e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbodhb_ft_get_glyph_contour_point (hb_font_t *font HB_UNUSED, 2107e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod void *font_data, 2117e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod hb_codepoint_t glyph, 2127e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod unsigned int point_index, 2137e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod hb_position_t *x, 2147e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod hb_position_t *y, 2157e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod void *user_data HB_UNUSED) 216b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod{ 217b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod FT_Face ft_face = (FT_Face) font_data; 218744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod int load_flags = FT_LOAD_DEFAULT; 2198fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 220744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod if (unlikely (FT_Load_Glyph (ft_face, glyph, load_flags))) 2210594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod return false; 2228fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 223744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod if (unlikely (ft_face->glyph->format != FT_GLYPH_FORMAT_OUTLINE)) 2240594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod return false; 2258fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 226744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod if (unlikely (point_index >= (unsigned int) ft_face->glyph->outline.n_points)) 2270594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod return false; 2283b59306b858d31d97be0ea8c64461de1d0d03572Behdad Esfahbod 229744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod *x = ft_face->glyph->outline.points[point_index].x; 230744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod *y = ft_face->glyph->outline.points[point_index].y; 2313b59306b858d31d97be0ea8c64461de1d0d03572Behdad Esfahbod 2320594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod return true; 2338fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod} 2348fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 235bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbodstatic hb_bool_t 236271c8f89075607c689938b4f5e60323d9a1acd70Behdad Esfahbodhb_ft_get_glyph_name (hb_font_t *font HB_UNUSED, 237bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod void *font_data, 238bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod hb_codepoint_t glyph, 239bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod char *name, unsigned int size, 240bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod void *user_data HB_UNUSED) 241bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod{ 242bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod FT_Face ft_face = (FT_Face) font_data; 243bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod 244bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod hb_bool_t ret = !FT_Get_Glyph_Name (ft_face, glyph, name, size); 2455594c2d112c295147ee69215a2ce9dfd99984aa0Behdad Esfahbod if (ret && (size && !*name)) 2465594c2d112c295147ee69215a2ce9dfd99984aa0Behdad Esfahbod ret = false; 247bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod 248bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod return ret; 249bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod} 250bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod 251bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbodstatic hb_bool_t 252271c8f89075607c689938b4f5e60323d9a1acd70Behdad Esfahbodhb_ft_get_glyph_from_name (hb_font_t *font HB_UNUSED, 253bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod void *font_data, 254bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod const char *name, int len, /* -1 means nul-terminated */ 255bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod hb_codepoint_t *glyph, 256bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod void *user_data HB_UNUSED) 257bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod{ 258bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod FT_Face ft_face = (FT_Face) font_data; 259bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod 260bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod if (len < 0) 261bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod *glyph = FT_Get_Name_Index (ft_face, (FT_String *) name); 262bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod else { 263bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod /* Make a nul-terminated version. */ 264bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod char buf[128]; 265bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod len = MIN (len, (int) sizeof (buf) - 1); 266bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod strncpy (buf, name, len); 267bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod buf[len] = '\0'; 268bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod *glyph = FT_Get_Name_Index (ft_face, buf); 269bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod } 270bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod 271e509d35cf1160f1449bc736b9445cdf61ab81d06Behdad Esfahbod if (*glyph == 0) 272e509d35cf1160f1449bc736b9445cdf61ab81d06Behdad Esfahbod { 273e509d35cf1160f1449bc736b9445cdf61ab81d06Behdad Esfahbod /* Check whether the given name was actually the name of glyph 0. */ 274e509d35cf1160f1449bc736b9445cdf61ab81d06Behdad Esfahbod char buf[128]; 275e509d35cf1160f1449bc736b9445cdf61ab81d06Behdad Esfahbod if (!FT_Get_Glyph_Name(ft_face, 0, buf, sizeof (buf)) && 276e509d35cf1160f1449bc736b9445cdf61ab81d06Behdad Esfahbod len < 0 ? !strcmp (buf, name) : !strncmp (buf, name, len)) 277e509d35cf1160f1449bc736b9445cdf61ab81d06Behdad Esfahbod return true; 278e509d35cf1160f1449bc736b9445cdf61ab81d06Behdad Esfahbod } 279e509d35cf1160f1449bc736b9445cdf61ab81d06Behdad Esfahbod 280bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod return *glyph != 0; 281bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod} 282bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod 283bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod 284f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbodstatic hb_font_funcs_t * 285f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod_hb_ft_get_font_funcs (void) 286f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod{ 287f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod static const hb_font_funcs_t ft_ffuncs = { 288f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod HB_OBJECT_HEADER_STATIC, 289fca368c4682624346a0aaee690e1ad6ed4c0b337Behdad Esfahbod 2900594a2448440208efa0acac9a5d8d52d43108289Behdad Esfahbod true, /* immutable */ 291b9d975b931d6310f25fab5ac280f523cdc27bf94Behdad Esfahbod 292f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod { 293bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod#define HB_FONT_FUNC_IMPLEMENT(name) hb_ft_get_##name, 294f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod HB_FONT_FUNCS_IMPLEMENT_CALLBACKS 295bce095524b3e69a47f8e88a2fb02d6ab537f9b0aBehdad Esfahbod#undef HB_FONT_FUNC_IMPLEMENT 296f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod } 297f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod }; 2988fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 299f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod return const_cast<hb_font_funcs_t *> (&ft_ffuncs); 3008fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod} 3018fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 3028fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 3038fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbodstatic hb_blob_t * 304e715784be35f0846c0e084b7c53c7556ce933a45Behdad Esfahbodreference_table (hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data) 3058fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod{ 3068fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod FT_Face ft_face = (FT_Face) user_data; 3078fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod FT_Byte *buffer; 3088fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod FT_ULong length = 0; 3098fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod FT_Error error; 3108fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 3113897335c7620c37e9a0224b0c42ade0dfdce4053Behdad Esfahbod /* Note: FreeType like HarfBuzz uses the NONE tag for fetching the entire blob */ 3122cd1ea4411d0808559a942ff3fa4e637f9c9a9c8Behdad Esfahbod 3138fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod error = FT_Load_Sfnt_Table (ft_face, tag, 0, NULL, &length); 3148fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod if (error) 315750a2294553d252e28875b605fe61fd9d6696e0fBehdad Esfahbod return NULL; 3168fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 31722da7fd94d6318c52df69d70470a85464ffc533dBehdad Esfahbod buffer = (FT_Byte *) malloc (length); 3188fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod if (buffer == NULL) 319d6b3c83a90f60bedb4049750ffb351161710980dBehdad Esfahbod return NULL; 3208fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 3218fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod error = FT_Load_Sfnt_Table (ft_face, tag, 0, buffer, &length); 3228fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod if (error) 323750a2294553d252e28875b605fe61fd9d6696e0fBehdad Esfahbod return NULL; 3248fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 3258fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod return hb_blob_create ((const char *) buffer, length, 3268fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod HB_MEMORY_MODE_WRITABLE, 3275668189c12c264e8d2caf0d12dac918363ef6f80Behdad Esfahbod buffer, free); 3288fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod} 3298fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 330ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod/** 331ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * hb_ft_face_create: 332ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * @ft_face: (destroy destroy) (scope notified): 333ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * @destroy: 334ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * 335ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * 336ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * 337ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * Return value: (transfer full): 338ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * Since: 1.0 339ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod **/ 3408fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbodhb_face_t * 3418fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbodhb_ft_face_create (FT_Face ft_face, 3428fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod hb_destroy_func_t destroy) 3438fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod{ 3448fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod hb_face_t *face; 3458fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 346e48ed72230a83499dabbd02af2ac63340220a353Behdad Esfahbod if (ft_face->stream->read == NULL) { 3478fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod hb_blob_t *blob; 3488fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 3498fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod blob = hb_blob_create ((const char *) ft_face->stream->base, 3508fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod (unsigned int) ft_face->stream->size, 351affacf2f37db767ab8df7f2db6cd9e0e9b0a2b8aBehdad Esfahbod HB_MEMORY_MODE_READONLY, 3525668189c12c264e8d2caf0d12dac918363ef6f80Behdad Esfahbod ft_face, destroy); 3539a14688e40e926b9453fcb75891f27bff1e45c49Behdad Esfahbod face = hb_face_create (blob, ft_face->face_index); 3548fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod hb_blob_destroy (blob); 3558fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod } else { 356e715784be35f0846c0e084b7c53c7556ce933a45Behdad Esfahbod face = hb_face_create_for_tables (reference_table, ft_face, destroy); 3578fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod } 3588fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 359de1e1cf9bccfd116d495804e230dc2e12b733a2dBehdad Esfahbod hb_face_set_index (face, ft_face->face_index); 360de1e1cf9bccfd116d495804e230dc2e12b733a2dBehdad Esfahbod hb_face_set_upem (face, ft_face->units_per_EM); 361de1e1cf9bccfd116d495804e230dc2e12b733a2dBehdad Esfahbod 3628fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod return face; 3638fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod} 3648fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 365350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod/** 366350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * hb_ft_face_create_referenced: 367350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * @ft_face: 368350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * 369350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * 370350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * 371350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * Return value: (transfer full): 372350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * Since: 1.0 373350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod **/ 374350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbodhb_face_t * 375350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbodhb_ft_face_create_referenced (FT_Face ft_face) 376350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod{ 377350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod FT_Reference_Face (ft_face); 378350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod return hb_ft_face_create (ft_face, (hb_destroy_func_t) FT_Done_Face); 379350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod} 380350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod 3813648bdf5b221adfe01ad99714de420b49964921eBehdad Esfahbodstatic void 3823648bdf5b221adfe01ad99714de420b49964921eBehdad Esfahbodhb_ft_face_finalize (FT_Face ft_face) 3833648bdf5b221adfe01ad99714de420b49964921eBehdad Esfahbod{ 38422da7fd94d6318c52df69d70470a85464ffc533dBehdad Esfahbod hb_face_destroy ((hb_face_t *) ft_face->generic.data); 3853648bdf5b221adfe01ad99714de420b49964921eBehdad Esfahbod} 3863648bdf5b221adfe01ad99714de420b49964921eBehdad Esfahbod 387ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod/** 388ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * hb_ft_face_create_cached: 389ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * @ft_face: 390ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * 391ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * 392ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * 393ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * Return value: (transfer full): 394ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * Since: 1.0 395ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod **/ 3966358ff45ae8cfc0b58b4976619319e3dde43add2Behdad Esfahbodhb_face_t * 3976358ff45ae8cfc0b58b4976619319e3dde43add2Behdad Esfahbodhb_ft_face_create_cached (FT_Face ft_face) 3986358ff45ae8cfc0b58b4976619319e3dde43add2Behdad Esfahbod{ 39964d3fc8d0dada673245cc8c0b1c12cd849b30997Behdad Esfahbod if (unlikely (!ft_face->generic.data || ft_face->generic.finalizer != (FT_Generic_Finalizer) hb_ft_face_finalize)) 400f4281e0a92a40746fa630fb15b877adaf3ff15b1Behdad Esfahbod { 401f4281e0a92a40746fa630fb15b877adaf3ff15b1Behdad Esfahbod if (ft_face->generic.finalizer) 402edb54e9aeca25f4120a69ed3d5562cbb68fdb348Behdad Esfahbod ft_face->generic.finalizer (ft_face); 4036358ff45ae8cfc0b58b4976619319e3dde43add2Behdad Esfahbod 404f4281e0a92a40746fa630fb15b877adaf3ff15b1Behdad Esfahbod ft_face->generic.data = hb_ft_face_create (ft_face, NULL); 4053648bdf5b221adfe01ad99714de420b49964921eBehdad Esfahbod ft_face->generic.finalizer = (FT_Generic_Finalizer) hb_ft_face_finalize; 406f4281e0a92a40746fa630fb15b877adaf3ff15b1Behdad Esfahbod } 4076358ff45ae8cfc0b58b4976619319e3dde43add2Behdad Esfahbod 40822da7fd94d6318c52df69d70470a85464ffc533dBehdad Esfahbod return hb_face_reference ((hb_face_t *) ft_face->generic.data); 4096358ff45ae8cfc0b58b4976619319e3dde43add2Behdad Esfahbod} 4106358ff45ae8cfc0b58b4976619319e3dde43add2Behdad Esfahbod 411553bc3de82cfda8d83db26a93205e0d39440cbd1Behdad Esfahbodstatic void 41201ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod_do_nothing (void) 41301ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod{ 41401ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod} 41501ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod 4168fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 417ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod/** 418ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * hb_ft_font_create: 419ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * @ft_face: (destroy destroy) (scope notified): 420ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * @destroy: 421ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * 422ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * 423ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * 424ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * Return value: (transfer full): 425ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod * Since: 1.0 426ace5c7eb4c2302a6a7eb3576e6dbc3bc026e569cBehdad Esfahbod **/ 4278fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbodhb_font_t * 4288fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbodhb_ft_font_create (FT_Face ft_face, 4298fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod hb_destroy_func_t destroy) 4308fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod{ 4318fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod hb_font_t *font; 432d292885893395dcb345dce1010e5c8628a715ef4Behdad Esfahbod hb_face_t *face; 4338fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 434d292885893395dcb345dce1010e5c8628a715ef4Behdad Esfahbod face = hb_ft_face_create (ft_face, destroy); 435d292885893395dcb345dce1010e5c8628a715ef4Behdad Esfahbod font = hb_font_create (face); 436d292885893395dcb345dce1010e5c8628a715ef4Behdad Esfahbod hb_face_destroy (face); 4378fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod hb_font_set_funcs (font, 43838b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod _hb_ft_get_font_funcs (), 43901ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod ft_face, (hb_destroy_func_t) _do_nothing); 4408fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod hb_font_set_scale (font, 44183408cf804a6908873c41b70bb7c43448e66ddd2Behdad Esfahbod (int) (((uint64_t) ft_face->size->metrics.x_scale * (uint64_t) ft_face->units_per_EM + (1<<15)) >> 16), 44283408cf804a6908873c41b70bb7c43448e66ddd2Behdad Esfahbod (int) (((uint64_t) ft_face->size->metrics.y_scale * (uint64_t) ft_face->units_per_EM + (1<<15)) >> 16)); 443f34aaba8687a20794835e2dc878c52d1b53e6f85Behdad Esfahbod#if 0 /* hb-ft works in no-hinting model */ 4448fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod hb_font_set_ppem (font, 4458fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod ft_face->size->metrics.x_ppem, 4468fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod ft_face->size->metrics.y_ppem); 447f34aaba8687a20794835e2dc878c52d1b53e6f85Behdad Esfahbod#endif 4488fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod 4498fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod return font; 4508fb3d1aa4e613cdf965a83bd650c668884c58ad8Behdad Esfahbod} 451acdba3f90b232fc12fcb200dca2584481b339118Behdad Esfahbod 452350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod/** 453350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * hb_ft_font_create_referenced: 454350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * @ft_face: 455350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * 456350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * 457350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * 458350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * Return value: (transfer full): 459350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod * Since: 1.0 460350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod **/ 461350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbodhb_font_t * 462350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbodhb_ft_font_create_referenced (FT_Face ft_face) 463350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod{ 464350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod FT_Reference_Face (ft_face); 465350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod return hb_ft_font_create (ft_face, (hb_destroy_func_t) FT_Done_Face); 466350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod} 467350f3a02ce225e5d78db8ac96de1351ff9f96dd5Behdad Esfahbod 468acdba3f90b232fc12fcb200dca2584481b339118Behdad Esfahbod 469f64b2ebf82c5f355cd95806478cd30c00b1a2731Behdad Esfahbod/* Thread-safe, lock-free, FT_Library */ 470f64b2ebf82c5f355cd95806478cd30c00b1a2731Behdad Esfahbod 47104aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbodstatic FT_Library ft_library; 47204aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod 473fb85d618f5883458bacf0ecb0894772291a2d738Chris Peterson#ifdef HB_USE_ATEXIT 474fb85d618f5883458bacf0ecb0894772291a2d738Chris Petersonstatic 47504aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbodvoid free_ft_library (void) 47604aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod{ 47704aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod FT_Done_FreeType (ft_library); 47804aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod} 479fb85d618f5883458bacf0ecb0894772291a2d738Chris Peterson#endif 48004aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod 48138b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbodstatic FT_Library 48204aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbodget_ft_library (void) 48338b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod{ 48404aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbodretry: 48504aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod FT_Library library = (FT_Library) hb_atomic_ptr_get (&ft_library); 48604aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod 48704aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod if (unlikely (!library)) 488f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod { 48904aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod /* Not found; allocate one. */ 49004aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod if (FT_Init_FreeType (&library)) 49104aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod return NULL; 49204aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod 49304aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod if (!hb_atomic_ptr_cmpexch (&ft_library, NULL, library)) { 49404aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod FT_Done_FreeType (library); 49504aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod goto retry; 496f06ab8a4262c759b4723614fd28f55ee77aa8466Behdad Esfahbod } 49738b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 49838fb30d7420a4b01f99cee31baa8c3990a1d1c5fBehdad Esfahbod#ifdef HB_USE_ATEXIT 49904aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod atexit (free_ft_library); /* First person registers atexit() callback. */ 50004aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod#endif 50104aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod } 50204aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod 50304aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod return library; 50438b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod} 50538b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 50638b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbodstatic void 50738b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod_release_blob (FT_Face ft_face) 50838b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod{ 50938b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod hb_blob_destroy ((hb_blob_t *) ft_face->generic.data); 51038b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod} 51138b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 51238b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbodvoid 51338b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbodhb_ft_font_set_funcs (hb_font_t *font) 51438b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod{ 51538b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod hb_blob_t *blob = hb_face_reference_blob (font->face); 51638b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod unsigned int blob_length; 51738b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod const char *blob_data = hb_blob_get_data (blob, &blob_length); 51838b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod if (unlikely (!blob_length)) 51938b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod DEBUG_MSG (FT, font, "Font face has empty blob"); 52038b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 52138b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod FT_Face ft_face = NULL; 52204aed572f112b96a6033cd6c3df7bdba5e29e93cBehdad Esfahbod FT_Error err = FT_New_Memory_Face (get_ft_library (), 52338b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod (const FT_Byte *) blob_data, 52438b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod blob_length, 52538b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod hb_face_get_index (font->face), 52638b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod &ft_face); 52738b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 52838b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod if (unlikely (err)) { 52938b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod hb_blob_destroy (blob); 53038b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod DEBUG_MSG (FT, font, "Font face FT_New_Memory_Face() failed"); 53138b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod return; 53238b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod } 53338b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 534254142bb67a5c520a304142301479eb5292592d1Behdad Esfahbod FT_Select_Charmap (ft_face, FT_ENCODING_UNICODE); 535254142bb67a5c520a304142301479eb5292592d1Behdad Esfahbod 53638b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod FT_Set_Char_Size (ft_face, 537a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod abs (font->x_scale), abs (font->y_scale), 5382023e2b54d91924dddfd228ffdbb46021135b068Behdad Esfahbod 0, 0); 5392023e2b54d91924dddfd228ffdbb46021135b068Behdad Esfahbod#if 0 54038b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod font->x_ppem * 72 * 64 / font->x_scale, 54138b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod font->y_ppem * 72 * 64 / font->y_scale); 5422023e2b54d91924dddfd228ffdbb46021135b068Behdad Esfahbod#endif 543a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod if (font->x_scale < 0 || font->y_scale < 0) 544a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod { 545a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod FT_Matrix matrix = { font->x_scale < 0 ? -1 : +1, 0, 546a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod 0, font->y_scale < 0 ? -1 : +1}; 547a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod FT_Set_Transform (ft_face, &matrix, NULL); 548a319d0777b746a2bbe5cd5a206172f1580da3379Behdad Esfahbod } 54938b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 55038b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod ft_face->generic.data = blob; 55138b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod ft_face->generic.finalizer = (FT_Generic_Finalizer) _release_blob; 55238b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod 55338b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod hb_font_set_funcs (font, 55438b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod _hb_ft_get_font_funcs (), 55538b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod ft_face, 55638b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod (hb_destroy_func_t) FT_Done_Face); 55738b2118724600521c6ad1e49df0667dcdf863634Behdad Esfahbod} 55801ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod 55901ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad EsfahbodFT_Face 56001ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbodhb_ft_font_get_face (hb_font_t *font) 56101ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod{ 56201ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod if (font->destroy == (hb_destroy_func_t) FT_Done_Face || 56301ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod font->destroy == (hb_destroy_func_t) _do_nothing) 56401ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod return (FT_Face) font->user_data; 5659527fb200ffbbd839334e99b51d9671752d393dbBehdad Esfahbod 5669527fb200ffbbd839334e99b51d9671752d393dbBehdad Esfahbod return NULL; 56701ec13a1d9ae380305b593e1c52cebb0e8327cb6Behdad Esfahbod} 568