diff options
Diffstat (limited to 'src/3rdparty/harfbuzz/src/harfbuzz-hebrew.c')
| -rw-r--r-- | src/3rdparty/harfbuzz/src/harfbuzz-hebrew.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-hebrew.c b/src/3rdparty/harfbuzz/src/harfbuzz-hebrew.c deleted file mode 100644 index a96ab39285..0000000000 --- a/src/3rdparty/harfbuzz/src/harfbuzz-hebrew.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * Copyright (C) 2015 The Qt Company Ltd - * - * This is part of HarfBuzz, an OpenType Layout engine library. - * - * Permission is hereby granted, without written agreement and without - * license or royalty fees, to use, copy, modify, and distribute this - * software and its documentation for any purpose, provided that the - * above copyright notice and the following two paragraphs appear in - * all copies of this software. - * - * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR - * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES - * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN - * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH - * DAMAGE. - * - * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS - * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO - * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. - */ - -#include "harfbuzz-shaper.h" -#include "harfbuzz-shaper-private.h" -#include <assert.h> - -/* -// Uniscribe also defines dlig for Hebrew, but we leave this out for now, as it's mostly -// ligatures one does not want in modern Hebrew (as lam-alef ligatures). -*/ -#ifndef NO_OPENTYPE -static const HB_OpenTypeFeature hebrew_features[] = { - { HB_MAKE_TAG('c', 'c', 'm', 'p'), CcmpProperty }, - {0, 0} -}; -#endif - -/* Hebrew shaping. In the non opentype case we try to use the - presentation forms specified for Hebrew. Especially for the - ligatures with Dagesh this gives much better results than we could - achieve manually. -*/ -HB_Bool HB_HebrewShape(HB_ShaperItem *shaper_item) -{ - enum { - Dagesh = 0x5bc, - ShinDot = 0x5c1, - SinDot = 0x5c2, - Patah = 0x5b7, - Qamats = 0x5b8, - Holam = 0x5b9, - Rafe = 0x5bf - }; - - assert(shaper_item->item.script == HB_Script_Hebrew); - -#ifndef NO_OPENTYPE - if (HB_SelectScript(shaper_item, hebrew_features)) { - - const int availableGlyphs = shaper_item->num_glyphs; - if (!HB_ConvertStringToGlyphIndices(shaper_item)) - return FALSE; - - HB_HeuristicSetGlyphAttributes(shaper_item); - HB_OpenTypeShape(shaper_item, /*properties*/0); - return HB_OpenTypePosition(shaper_item, availableGlyphs, /*doLogClusters*/TRUE); - } -#endif - - { - const HB_UChar16 *uc = shaper_item->string + shaper_item->item.pos; - unsigned short *logClusters = shaper_item->log_clusters; - HB_GlyphAttributes *attributes = shaper_item->attributes; - - HB_Bool haveGlyphs; - int slen = 1; - int cluster_start = 0; - hb_uint32 i; - - HB_STACKARRAY(HB_UChar16, shapedChars, 2 * shaper_item->item.length); - *shapedChars = *uc; - logClusters[0] = 0; - - for (i = 1; i < shaper_item->item.length; ++i) { - hb_uint16 base = shapedChars[cluster_start]; - hb_uint16 shaped = 0; - HB_Bool invalid = FALSE; - if (uc[i] == Dagesh) { - if (base >= 0x5d0 - && base <= 0x5ea - && base != 0x5d7 - && base != 0x5dd - && base != 0x5df - && base != 0x5e2 - && base != 0x5e5) { - shaped = base - 0x5d0 + 0xfb30; - } else if (base == 0xfb2a || base == 0xfb2b /* Shin with Shin or Sin dot */) { - shaped = base + 2; - } else { - invalid = TRUE; - } - } else if (uc[i] == ShinDot) { - if (base == 0x05e9) - shaped = 0xfb2a; - else if (base == 0xfb49) - shaped = 0xfb2c; - else - invalid = TRUE; - } else if (uc[i] == SinDot) { - if (base == 0x05e9) - shaped = 0xfb2b; - else if (base == 0xfb49) - shaped = 0xfb2d; - else - invalid = TRUE; - } else if (uc[i] == Patah) { - if (base == 0x5d0) - shaped = 0xfb2e; - } else if (uc[i] == Qamats) { - if (base == 0x5d0) - shaped = 0xfb2f; - } else if (uc[i] == Holam) { - if (base == 0x5d5) - shaped = 0xfb4b; - } else if (uc[i] == Rafe) { - if (base == 0x5d1) - shaped = 0xfb4c; - else if (base == 0x5db) - shaped = 0xfb4d; - else if (base == 0x5e4) - shaped = 0xfb4e; - } - - if (invalid) { - shapedChars[slen] = 0x25cc; - attributes[slen].clusterStart = TRUE; - attributes[slen].mark = FALSE; - attributes[slen].combiningClass = 0; - cluster_start = slen; - ++slen; - } - if (shaped) { - if (shaper_item->font->klass->canRender(shaper_item->font, (HB_UChar16 *)&shaped, 1)) { - shapedChars[cluster_start] = shaped; - } else - shaped = 0; - } - if (!shaped) { - HB_CharCategory category; - int cmb; - shapedChars[slen] = uc[i]; - HB_GetUnicodeCharProperties(uc[i], &category, &cmb); - if (category != HB_Mark_NonSpacing) { - attributes[slen].clusterStart = TRUE; - attributes[slen].mark = FALSE; - attributes[slen].combiningClass = 0; - attributes[slen].dontPrint = HB_IsControlChar(uc[i]); - cluster_start = slen; - } else { - attributes[slen].clusterStart = FALSE; - attributes[slen].mark = TRUE; - attributes[slen].combiningClass = cmb; - } - ++slen; - } - logClusters[i] = cluster_start; - } - - haveGlyphs = shaper_item->font->klass - ->convertStringToGlyphIndices(shaper_item->font, - shapedChars, slen, - shaper_item->glyphs, &shaper_item->num_glyphs, - shaper_item->item.bidiLevel % 2); - - HB_FREE_STACKARRAY(shapedChars); - - if (!haveGlyphs) - return FALSE; - - HB_HeuristicPosition(shaper_item); - } - - return TRUE; -} - |