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-rw-r--r--src/3rdparty/harfbuzz/src/harfbuzz-tibetan.c277
1 files changed, 0 insertions, 277 deletions
diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-tibetan.c b/src/3rdparty/harfbuzz/src/harfbuzz-tibetan.c
deleted file mode 100644
index e39fd0e1f2..0000000000
--- a/src/3rdparty/harfbuzz/src/harfbuzz-tibetan.c
+++ /dev/null
@@ -1,277 +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>
-
-/*
- tibetan syllables are of the form:
- head position consonant
- first sub-joined consonant
- ....intermediate sub-joined consonants (if any)
- last sub-joined consonant
- sub-joined vowel (a-chung U+0F71)
- standard or compound vowel sign (or 'virama' for devanagari transliteration)
-*/
-
-typedef enum {
- TibetanOther,
- TibetanHeadConsonant,
- TibetanSubjoinedConsonant,
- TibetanSubjoinedVowel,
- TibetanVowel
-} TibetanForm;
-
-/* this table starts at U+0f40 */
-static const unsigned char tibetanForm[0x80] = {
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
-
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
-
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
- TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant, TibetanHeadConsonant,
- TibetanOther, TibetanOther, TibetanOther, TibetanOther,
-
- TibetanOther, TibetanVowel, TibetanVowel, TibetanVowel,
- TibetanVowel, TibetanVowel, TibetanVowel, TibetanVowel,
- TibetanVowel, TibetanVowel, TibetanVowel, TibetanVowel,
- TibetanVowel, TibetanVowel, TibetanVowel, TibetanVowel,
-
- TibetanVowel, TibetanVowel, TibetanVowel, TibetanVowel,
- TibetanVowel, TibetanVowel, TibetanVowel, TibetanVowel,
- TibetanOther, TibetanOther, TibetanOther, TibetanOther,
- TibetanOther, TibetanOther, TibetanOther, TibetanOther,
-
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
-
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
-
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
- TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant, TibetanSubjoinedConsonant,
- TibetanSubjoinedConsonant, TibetanOther, TibetanOther, TibetanOther
-};
-
-
-#define tibetan_form(c) \
- ((c) >= 0x0f40 && (c) < 0x0fc0 ? (TibetanForm)tibetanForm[(c) - 0x0f40] : TibetanOther)
-
-#ifndef NO_OPENTYPE
-static const HB_OpenTypeFeature tibetan_features[] = {
- { HB_MAKE_TAG('c', 'c', 'm', 'p'), CcmpProperty },
- { HB_MAKE_TAG('a', 'b', 'v', 's'), AboveSubstProperty },
- { HB_MAKE_TAG('b', 'l', 'w', 's'), BelowSubstProperty },
- { HB_MAKE_TAG('c', 'a', 'l', 't'), CaltProperty },
- {0, 0}
-};
-#endif
-
-static HB_Bool tibetan_shape_syllable(HB_Bool openType, HB_ShaperItem *item, HB_Bool invalid)
-{
- hb_uint32 i;
- const HB_UChar16 *str = item->string + item->item.pos;
- int len = item->item.length;
-#ifndef NO_OPENTYPE
- const int availableGlyphs = item->num_glyphs;
-#endif
- HB_Bool haveGlyphs;
- HB_STACKARRAY(HB_UChar16, reordered, len + 4);
-
- if (item->num_glyphs < item->item.length + 4) {
- item->num_glyphs = item->item.length + 4;
- HB_FREE_STACKARRAY(reordered);
- return FALSE;
- }
-
- if (invalid) {
- *reordered = 0x25cc;
- memcpy(reordered+1, str, len*sizeof(HB_UChar16));
- len++;
- str = reordered;
- }
-
- haveGlyphs = item->font->klass->convertStringToGlyphIndices(item->font,
- str, len,
- item->glyphs, &item->num_glyphs,
- item->item.bidiLevel % 2);
-
- HB_FREE_STACKARRAY(reordered);
-
- if (!haveGlyphs)
- return FALSE;
-
- for (i = 0; i < item->item.length; i++) {
- item->attributes[i].mark = FALSE;
- item->attributes[i].clusterStart = FALSE;
- item->attributes[i].justification = 0;
- item->attributes[i].zeroWidth = FALSE;
-/* IDEBUG(" %d: %4x", i, str[i]); */
- }
-
- /* now we have the syllable in the right order, and can start running it through open type. */
-
-#ifndef NO_OPENTYPE
- if (openType) {
- HB_OpenTypeShape(item, /*properties*/0);
- if (!HB_OpenTypePosition(item, availableGlyphs, /*doLogClusters*/FALSE))
- return FALSE;
- } else {
- HB_HeuristicPosition(item);
- }
-#endif
-
- item->attributes[0].clusterStart = TRUE;
- return TRUE;
-}
-
-
-static int tibetan_nextSyllableBoundary(const HB_UChar16 *s, int start, int end, HB_Bool *invalid)
-{
- const HB_UChar16 *uc = s + start;
-
- int pos = 0;
- TibetanForm state = tibetan_form(*uc);
-
-/* qDebug("state[%d]=%d (uc=%4x)", pos, state, uc[pos]);*/
- pos++;
-
- if (state != TibetanHeadConsonant) {
- if (state != TibetanOther)
- *invalid = TRUE;
- goto finish;
- }
-
- while (pos < end - start) {
- TibetanForm newState = tibetan_form(uc[pos]);
- switch(newState) {
- case TibetanSubjoinedConsonant:
- case TibetanSubjoinedVowel:
- if (state != TibetanHeadConsonant &&
- state != TibetanSubjoinedConsonant)
- goto finish;
- state = newState;
- break;
- case TibetanVowel:
- if (state != TibetanHeadConsonant &&
- state != TibetanSubjoinedConsonant &&
- state != TibetanSubjoinedVowel)
- goto finish;
- break;
- case TibetanOther:
- case TibetanHeadConsonant:
- goto finish;
- }
- pos++;
- }
-
-finish:
- *invalid = FALSE;
- return start+pos;
-}
-
-HB_Bool HB_TibetanShape(HB_ShaperItem *item)
-{
-
- HB_Bool openType = FALSE;
- unsigned short *logClusters = item->log_clusters;
-
- HB_ShaperItem syllable = *item;
- int first_glyph = 0;
-
- int sstart = item->item.pos;
- int end = sstart + item->item.length;
-
- assert(item->item.script == HB_Script_Tibetan);
-
-#ifndef NO_OPENTYPE
- openType = HB_SelectScript(item, tibetan_features);
-#endif
-
- while (sstart < end) {
- HB_Bool invalid;
- int i;
- int send = tibetan_nextSyllableBoundary(item->string, sstart, end, &invalid);
-/* IDEBUG("syllable from %d, length %d, invalid=%s", sstart, send-sstart,
- invalid ? "TRUE" : "FALSE"); */
- syllable.item.pos = sstart;
- syllable.item.length = send-sstart;
- syllable.glyphs = item->glyphs + first_glyph;
- syllable.attributes = item->attributes + first_glyph;
- syllable.offsets = item->offsets + first_glyph;
- syllable.advances = item->advances + first_glyph;
- syllable.num_glyphs = item->num_glyphs - first_glyph;
- if (!tibetan_shape_syllable(openType, &syllable, invalid)) {
- item->num_glyphs += syllable.num_glyphs;
- return FALSE;
- }
- /* fix logcluster array */
- for (i = sstart; i < send; ++i)
- logClusters[i-item->item.pos] = first_glyph;
- sstart = send;
- first_glyph += syllable.num_glyphs;
- }
- item->num_glyphs = first_glyph;
- return TRUE;
-}
-
-void HB_TibetanAttributes(HB_Script script, const HB_UChar16 *text, hb_uint32 from, hb_uint32 len, HB_CharAttributes *attributes)
-{
- int end = from + len;
- const HB_UChar16 *uc = text + from;
- hb_uint32 i = 0;
- HB_UNUSED(script);
- attributes += from;
- while (i < len) {
- HB_Bool invalid;
- hb_uint32 boundary = tibetan_nextSyllableBoundary(text, from+i, end, &invalid) - from;
-
- attributes[i].graphemeBoundary = TRUE;
-
- if (boundary > len-1) boundary = len;
- i++;
- while (i < boundary) {
- attributes[i].graphemeBoundary = FALSE;
- ++uc;
- ++i;
- }
- assert(i == boundary);
- }
-}
-
-