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Unified Diff: third_party/harfbuzz/src/harfbuzz-myanmar.c

Issue 384503008: Delete third_party/harfbuzz (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: remove public header Created 6 years, 5 months ago
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Index: third_party/harfbuzz/src/harfbuzz-myanmar.c
diff --git a/third_party/harfbuzz/src/harfbuzz-myanmar.c b/third_party/harfbuzz/src/harfbuzz-myanmar.c
deleted file mode 100644
index 7cd82bb1e6371e7bc8a4dc0e31bddd6864689f02..0000000000000000000000000000000000000000
--- a/third_party/harfbuzz/src/harfbuzz-myanmar.c
+++ /dev/null
@@ -1,542 +0,0 @@
-/*
- * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
- *
- * 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>
-#include <stdio.h>
-
-enum MymrCharClassValues
-{
- Mymr_CC_RESERVED = 0,
- Mymr_CC_CONSONANT = 1, /* Consonant of type 1, that has subscript form */
- Mymr_CC_CONSONANT2 = 2, /* Consonant of type 2, that has no subscript form */
- Mymr_CC_NGA = 3, /* Consonant NGA */
- Mymr_CC_YA = 4, /* Consonant YA */
- Mymr_CC_RA = 5, /* Consonant RA */
- Mymr_CC_WA = 6, /* Consonant WA */
- Mymr_CC_HA = 7, /* Consonant HA */
- Mymr_CC_IND_VOWEL = 8, /* Independent vowel */
- Mymr_CC_ZERO_WIDTH_NJ_MARK = 9, /* Zero Width non joiner character (0x200C) */
- Mymr_CC_VIRAMA = 10, /* Subscript consonant combining character */
- Mymr_CC_PRE_VOWEL = 11, /* Dependent vowel, prebase (Vowel e) */
- Mymr_CC_BELOW_VOWEL = 12, /* Dependent vowel, prebase (Vowel u, uu) */
- Mymr_CC_ABOVE_VOWEL = 13, /* Dependent vowel, prebase (Vowel i, ii, ai) */
- Mymr_CC_POST_VOWEL = 14, /* Dependent vowel, prebase (Vowel aa) */
- Mymr_CC_SIGN_ABOVE = 15,
- Mymr_CC_SIGN_BELOW = 16,
- Mymr_CC_SIGN_AFTER = 17,
- Mymr_CC_ZERO_WIDTH_J_MARK = 18, /* Zero width joiner character */
- Mymr_CC_COUNT = 19 /* This is the number of character classes */
-};
-
-enum MymrCharClassFlags
-{
- Mymr_CF_CLASS_MASK = 0x0000FFFF,
-
- Mymr_CF_CONSONANT = 0x01000000, /* flag to speed up comparing */
- Mymr_CF_MEDIAL = 0x02000000, /* flag to speed up comparing */
- Mymr_CF_IND_VOWEL = 0x04000000, /* flag to speed up comparing */
- Mymr_CF_DEP_VOWEL = 0x08000000, /* flag to speed up comparing */
- Mymr_CF_DOTTED_CIRCLE = 0x10000000, /* add a dotted circle if a character with this flag is the first in a syllable */
- Mymr_CF_VIRAMA = 0x20000000, /* flag to speed up comparing */
-
- /* position flags */
- Mymr_CF_POS_BEFORE = 0x00080000,
- Mymr_CF_POS_BELOW = 0x00040000,
- Mymr_CF_POS_ABOVE = 0x00020000,
- Mymr_CF_POS_AFTER = 0x00010000,
- Mymr_CF_POS_MASK = 0x000f0000,
-
- Mymr_CF_AFTER_KINZI = 0x00100000
-};
-
-/* Characters that get refrered to by name */
-enum MymrChar
-{
- Mymr_C_SIGN_ZWNJ = 0x200C,
- Mymr_C_SIGN_ZWJ = 0x200D,
- Mymr_C_DOTTED_CIRCLE = 0x25CC,
- Mymr_C_RA = 0x101B,
- Mymr_C_YA = 0x101A,
- Mymr_C_NGA = 0x1004,
- Mymr_C_VOWEL_E = 0x1031,
- Mymr_C_VIRAMA = 0x1039
-};
-
-enum
-{
- Mymr_xx = Mymr_CC_RESERVED,
- Mymr_c1 = Mymr_CC_CONSONANT | Mymr_CF_CONSONANT | Mymr_CF_POS_BELOW,
- Mymr_c2 = Mymr_CC_CONSONANT2 | Mymr_CF_CONSONANT,
- Mymr_ng = Mymr_CC_NGA | Mymr_CF_CONSONANT | Mymr_CF_POS_ABOVE,
- Mymr_ya = Mymr_CC_YA | Mymr_CF_CONSONANT | Mymr_CF_MEDIAL | Mymr_CF_POS_AFTER | Mymr_CF_AFTER_KINZI,
- Mymr_ra = Mymr_CC_RA | Mymr_CF_CONSONANT | Mymr_CF_MEDIAL | Mymr_CF_POS_BEFORE,
- Mymr_wa = Mymr_CC_WA | Mymr_CF_CONSONANT | Mymr_CF_MEDIAL | Mymr_CF_POS_BELOW,
- Mymr_ha = Mymr_CC_HA | Mymr_CF_CONSONANT | Mymr_CF_MEDIAL | Mymr_CF_POS_BELOW,
- Mymr_id = Mymr_CC_IND_VOWEL | Mymr_CF_IND_VOWEL,
- Mymr_vi = Mymr_CC_VIRAMA | Mymr_CF_VIRAMA | Mymr_CF_POS_ABOVE | Mymr_CF_DOTTED_CIRCLE,
- Mymr_dl = Mymr_CC_PRE_VOWEL | Mymr_CF_DEP_VOWEL | Mymr_CF_POS_BEFORE | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI,
- Mymr_db = Mymr_CC_BELOW_VOWEL | Mymr_CF_DEP_VOWEL | Mymr_CF_POS_BELOW | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI,
- Mymr_da = Mymr_CC_ABOVE_VOWEL | Mymr_CF_DEP_VOWEL | Mymr_CF_POS_ABOVE | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI,
- Mymr_dr = Mymr_CC_POST_VOWEL | Mymr_CF_DEP_VOWEL | Mymr_CF_POS_AFTER | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI,
- Mymr_sa = Mymr_CC_SIGN_ABOVE | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_POS_ABOVE | Mymr_CF_AFTER_KINZI,
- Mymr_sb = Mymr_CC_SIGN_BELOW | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_POS_BELOW | Mymr_CF_AFTER_KINZI,
- Mymr_sp = Mymr_CC_SIGN_AFTER | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI
-};
-
-
-typedef int MymrCharClass;
-
-
-static const MymrCharClass mymrCharClasses[] =
-{
- Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_ng, Mymr_c1, Mymr_c1, Mymr_c1,
- Mymr_c1, Mymr_c1, Mymr_c2, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, /* 1000 - 100F */
- Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1,
- Mymr_c1, Mymr_c1, Mymr_ya, Mymr_ra, Mymr_c1, Mymr_wa, Mymr_c1, Mymr_ha, /* 1010 - 101F */
- Mymr_c2, Mymr_c2, Mymr_xx, Mymr_id, Mymr_id, Mymr_id, Mymr_id, Mymr_id,
- Mymr_xx, Mymr_id, Mymr_id, Mymr_xx, Mymr_dr, Mymr_da, Mymr_da, Mymr_db, /* 1020 - 102F */
- Mymr_db, Mymr_dl, Mymr_da, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_sa, Mymr_sb,
- Mymr_sp, Mymr_vi, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, /* 1030 - 103F */
- Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx,
- Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, /* 1040 - 104F */
- Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx,
- Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, /* 1050 - 105F */
-};
-
-static MymrCharClass
-getMyanmarCharClass (HB_UChar16 ch)
-{
- if (ch == Mymr_C_SIGN_ZWJ)
- return Mymr_CC_ZERO_WIDTH_J_MARK;
-
- if (ch == Mymr_C_SIGN_ZWNJ)
- return Mymr_CC_ZERO_WIDTH_NJ_MARK;
-
- if (ch < 0x1000 || ch > 0x105f)
- return Mymr_CC_RESERVED;
-
- return mymrCharClasses[ch - 0x1000];
-}
-
-static const signed char mymrStateTable[][Mymr_CC_COUNT] =
-{
-/* xx c1, c2 ng ya ra wa ha id zwnj vi dl db da dr sa sb sp zwj */
- { 1, 4, 4, 2, 4, 4, 4, 4, 24, 1, 27, 17, 18, 19, 20, 21, 1, 1, 4}, /* 0 - ground state */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 1 - exit state (or sp to the right of the syllable) */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 3, 17, 18, 19, 20, 21, -1, -1, 4}, /* 2 - NGA */
- {-1, 4, 4, 4, 4, 4, 4, 4, -1, 23, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 3 - Virama after NGA */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 17, 18, 19, 20, 21, 1, 1, -1}, /* 4 - Base consonant */
- {-2, 6, -2, -2, 7, 8, 9, 10, -2, 23, -2, -2, -2, -2, -2, -2, -2, -2, -2}, /* 5 - First virama */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 25, 17, 18, 19, 20, 21, -1, -1, -1}, /* 6 - c1 after virama */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 12, 17, 18, 19, 20, 21, -1, -1, -1}, /* 7 - ya after virama */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 12, 17, 18, 19, 20, 21, -1, -1, -1}, /* 8 - ra after virama */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 12, 17, 18, 19, 20, 21, -1, -1, -1}, /* 9 - wa after virama */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 17, 18, 19, 20, 21, -1, -1, -1}, /* 10 - ha after virama */
- {-1, -1, -1, -1, 7, 8, 9, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 11 - Virama after NGA+zwj */
- {-2, -2, -2, -2, -2, -2, 13, 14, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2}, /* 12 - Second virama */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 15, 17, 18, 19, 20, 21, -1, -1, -1}, /* 13 - wa after virama */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 17, 18, 19, 20, 21, -1, -1, -1}, /* 14 - ha after virama */
- {-2, -2, -2, -2, -2, -2, -2, 16, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2}, /* 15 - Third virama */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 17, 18, 19, 20, 21, -1, -1, -1}, /* 16 - ha after virama */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 20, 21, 1, 1, -1}, /* 17 - dl, Dependent vowel e */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 19, -1, 21, 1, 1, -1}, /* 18 - db, Dependent vowel u,uu */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, 1, -1}, /* 19 - da, Dependent vowel i,ii,ai */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 22, -1, -1, -1, -1, -1, 1, 1, -1}, /* 20 - dr, Dependent vowel aa */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1}, /* 21 - sa, Sign anusvara */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, 23, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 22 - atha */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1}, /* 23 - zwnj for atha */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1}, /* 24 - Independent vowel */
- {-2, -2, -2, -2, 26, 26, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2}, /* 25 - Virama after subscript consonant */
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 12, 17, 18, 19, 20, 21, -1, 1, -1}, /* 26 - ra/ya after subscript consonant + virama */
- {-1, 6, -1, -1, 7, 8, 9, 10, -1, 23, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 - Virama after ground state */
-/* exit state -2 is for invalid order of medials and combination of invalids
- with virama where virama should treat as start of next syllable
- */
-};
-
-
-
-/*#define MYANMAR_DEBUG */
-#ifdef MYANMAR_DEBUG
-#define MMDEBUG qDebug
-#else
-#define MMDEBUG if(0) printf
-#endif
-
-/*
-// Given an input string of characters and a location in which to start looking
-// calculate, using the state table, which one is the last character of the syllable
-// that starts in the starting position.
-*/
-static int myanmar_nextSyllableBoundary(const HB_UChar16 *s, int start, int end, HB_Bool *invalid)
-{
- const HB_UChar16 *uc = s + start;
- int state = 0;
- int pos = start;
- *invalid = FALSE;
-
- while (pos < end) {
- MymrCharClass charClass = getMyanmarCharClass(*uc);
- state = mymrStateTable[state][charClass & Mymr_CF_CLASS_MASK];
- if (pos == start)
- *invalid = (HB_Bool)(charClass & Mymr_CF_DOTTED_CIRCLE);
-
- MMDEBUG("state[%d]=%d class=%8x (uc=%4x)", pos - start, state, charClass, *uc);
-
- if (state < 0) {
- if (state < -1)
- --pos;
- break;
- }
- ++uc;
- ++pos;
- }
- return pos;
-}
-
-#ifndef NO_OPENTYPE
-/* ###### might have to change order of above and below forms and substitutions,
- but according to Unicode below comes before above */
-static const HB_OpenTypeFeature myanmar_features[] = {
- { HB_MAKE_TAG('p', 'r', 'e', 'f'), PreFormProperty },
- { HB_MAKE_TAG('b', 'l', 'w', 'f'), BelowFormProperty },
- { HB_MAKE_TAG('a', 'b', 'v', 'f'), AboveFormProperty },
- { HB_MAKE_TAG('p', 's', 't', 'f'), PostFormProperty },
- { HB_MAKE_TAG('p', 'r', 'e', 's'), PreSubstProperty },
- { HB_MAKE_TAG('b', 'l', 'w', 's'), BelowSubstProperty },
- { HB_MAKE_TAG('a', 'b', 'v', 's'), AboveSubstProperty },
- { HB_MAKE_TAG('p', 's', 't', 's'), PostSubstProperty },
- { HB_MAKE_TAG('r', 'l', 'i', 'g'), CligProperty }, /* Myanmar1 uses this instead of the other features */
- { 0, 0 }
-};
-#endif
-
-
-/*
-// Visual order before shaping should be:
-//
-// [Vowel Mark E]
-// [Virama + Medial Ra]
-// [Base]
-// [Virama + Consonant]
-// [Nga + Virama] (Kinzi) ### should probably come before post forms (medial ya)
-// [Vowels]
-// [Marks]
-//
-// This means that we can keep the logical order apart from having to
-// move the pre vowel, medial ra and kinzi
-*/
-
-static HB_Bool myanmar_shape_syllable(HB_Bool openType, HB_ShaperItem *item, HB_Bool invalid)
-{
- /*
-// MMDEBUG("\nsyllable from %d len %d, str='%s'", item->item.pos, item->item.length,
-// item->string->mid(item->from, item->length).toUtf8().data());
- */
-
-#ifndef NO_OPENTYPE
- const int availableGlyphs = item->num_glyphs;
-#endif
- const HB_UChar16 *uc = item->string + item->item.pos;
- int vowel_e = -1;
- int kinzi = -1;
- int medial_ra = -1;
- int base = -1;
- int i;
- int len = 0;
- unsigned short reordered[32];
- unsigned char properties[32];
- enum {
- AboveForm = 0x01,
- PreForm = 0x02,
- PostForm = 0x04,
- BelowForm = 0x08
- };
- HB_Bool lastWasVirama = FALSE;
- int basePos = -1;
-
- memset(properties, 0, 32*sizeof(unsigned char));
-
- /* according to the table the max length of a syllable should be around 14 chars */
- assert(item->item.length < 32);
-
-#ifdef MYANMAR_DEBUG
- printf("original:");
- for (i = 0; i < (int)item->item.length; i++) {
- printf(" %d: %4x", i, uc[i]);
- }
-#endif
- for (i = 0; i < (int)item->item.length; ++i) {
- HB_UChar16 chr = uc[i];
-
- if (chr == Mymr_C_VOWEL_E) {
- vowel_e = i;
- continue;
- }
- if (i == 0
- && chr == Mymr_C_NGA
- && i + 2 < (int)item->item.length
- && uc[i+1] == Mymr_C_VIRAMA) {
- int mc = getMyanmarCharClass(uc[i+2]);
- /*MMDEBUG("maybe kinzi: mc=%x", mc);*/
- if ((mc & Mymr_CF_CONSONANT) == Mymr_CF_CONSONANT) {
- kinzi = i;
- continue;
- }
- }
- if (base >= 0
- && chr == Mymr_C_VIRAMA
- && i + 1 < (int)item->item.length
- && uc[i+1] == Mymr_C_RA) {
- medial_ra = i;
- continue;
- }
- if (base < 0)
- base = i;
- }
-
- MMDEBUG("\n base=%d, vowel_e=%d, kinzi=%d, medial_ra=%d", base, vowel_e, kinzi, medial_ra);
- /* write vowel_e if found */
- if (vowel_e >= 0) {
- reordered[0] = Mymr_C_VOWEL_E;
- len = 1;
- }
- /* write medial_ra */
- if (medial_ra >= 0) {
- reordered[len] = Mymr_C_VIRAMA;
- reordered[len+1] = Mymr_C_RA;
- properties[len] = PreForm;
- properties[len+1] = PreForm;
- len += 2;
- }
-
- /* shall we add a dotted circle?
- If in the position in which the base should be (first char in the string) there is
- a character that has the Dotted circle flag (a character that cannot be a base)
- then write a dotted circle */
- if (invalid) {
- reordered[len] = C_DOTTED_CIRCLE;
- ++len;
- }
-
- /* copy the rest of the syllable to the output, inserting the kinzi
- at the correct place */
- for (i = 0; i < (int)item->item.length; ++i) {
- hb_uint16 chr = uc[i];
- MymrCharClass cc;
- if (i == vowel_e)
- continue;
- if (i == medial_ra || i == kinzi) {
- ++i;
- continue;
- }
-
- cc = getMyanmarCharClass(uc[i]);
- if (kinzi >= 0 && i > base && (cc & Mymr_CF_AFTER_KINZI)) {
- reordered[len] = Mymr_C_NGA;
- reordered[len+1] = Mymr_C_VIRAMA;
- properties[len-1] = AboveForm;
- properties[len] = AboveForm;
- len += 2;
- kinzi = -1;
- }
-
- if (lastWasVirama) {
- int prop = 0;
- switch(cc & Mymr_CF_POS_MASK) {
- case Mymr_CF_POS_BEFORE:
- prop = PreForm;
- break;
- case Mymr_CF_POS_BELOW:
- prop = BelowForm;
- break;
- case Mymr_CF_POS_ABOVE:
- prop = AboveForm;
- break;
- case Mymr_CF_POS_AFTER:
- prop = PostForm;
- break;
- default:
- break;
- }
- properties[len-1] = prop;
- properties[len] = prop;
- if(basePos >= 0 && basePos == len-2)
- properties[len-2] = prop;
- }
- lastWasVirama = (chr == Mymr_C_VIRAMA);
- if(i == base)
- basePos = len;
-
- if ((chr != Mymr_C_SIGN_ZWNJ && chr != Mymr_C_SIGN_ZWJ) || !len) {
- reordered[len] = chr;
- ++len;
- }
- }
- if (kinzi >= 0) {
- reordered[len] = Mymr_C_NGA;
- reordered[len+1] = Mymr_C_VIRAMA;
- properties[len] = AboveForm;
- properties[len+1] = AboveForm;
- len += 2;
- }
-
- if (!item->font->klass->convertStringToGlyphIndices(item->font,
- reordered, len,
- item->glyphs, &item->num_glyphs,
- item->item.bidiLevel % 2))
- return FALSE;
-
- MMDEBUG("after shaping: len=%d", len);
- for (i = 0; i < len; i++) {
- item->attributes[i].mark = FALSE;
- item->attributes[i].clusterStart = FALSE;
- item->attributes[i].justification = 0;
- item->attributes[i].zeroWidth = FALSE;
- MMDEBUG(" %d: %4x property=%x", i, reordered[i], properties[i]);
- }
-
- /* now we have the syllable in the right order, and can start running it through open type. */
-
-#ifndef NO_OPENTYPE
- if (openType) {
- unsigned short logClusters[32];
- hb_uint32 where[32];
-
- for (i = 0; i < len; ++i)
- logClusters[i] = i;
-
- for (i = 0; i < len; ++i) {
- where[i] = ~(PreSubstProperty
- | BelowSubstProperty
- | AboveSubstProperty
- | PostSubstProperty
- | CligProperty
- | PositioningProperties);
- if (properties[i] & PreForm)
- where[i] &= ~PreFormProperty;
- if (properties[i] & BelowForm)
- where[i] &= ~BelowFormProperty;
- if (properties[i] & AboveForm)
- where[i] &= ~AboveFormProperty;
- if (properties[i] & PostForm)
- where[i] &= ~PostFormProperty;
- }
-
- HB_OpenTypeShape(item, where);
- if (!HB_OpenTypePosition(item, availableGlyphs, /*doLogClusters*/FALSE))
- return FALSE;
- } else
-#endif
- {
- MMDEBUG("Not using openType");
- HB_HeuristicPosition(item);
- }
-
- item->attributes[0].clusterStart = TRUE;
- return TRUE;
-}
-
-HB_Bool HB_MyanmarShape(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;
- int i = 0;
-
- assert(item->item.script == HB_Script_Myanmar);
-#ifndef NO_OPENTYPE
- openType = HB_SelectScript(item, myanmar_features);
-#endif
-
- MMDEBUG("myanmar_shape: from %d length %d", item->item.pos, item->item.length);
- while (sstart < end) {
- HB_Bool invalid;
- int send = myanmar_nextSyllableBoundary(item->string, sstart, end, &invalid);
- MMDEBUG("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.advances = item->advances + first_glyph;
- syllable.offsets = item->offsets + first_glyph;
- syllable.num_glyphs = item->num_glyphs - first_glyph;
- if (!myanmar_shape_syllable(openType, &syllable, invalid)) {
- MMDEBUG("syllable shaping failed, syllable requests %d glyphs", syllable.num_glyphs);
- item->num_glyphs += syllable.num_glyphs;
- return FALSE;
- }
-
- /* fix logcluster array */
- MMDEBUG("syllable:");
- for (i = first_glyph; i < first_glyph + (int)syllable.num_glyphs; ++i)
- MMDEBUG(" %d -> glyph %x", i, item->glyphs[i]);
- MMDEBUG(" logclusters:");
- for (i = sstart; i < send; ++i) {
- MMDEBUG(" %d -> glyph %d", i, first_glyph);
- logClusters[i-item->item.pos] = first_glyph;
- }
- sstart = send;
- first_glyph += syllable.num_glyphs;
- }
- item->num_glyphs = first_glyph;
- return TRUE;
-}
-
-void HB_MyanmarAttributes(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 = myanmar_nextSyllableBoundary(text, from+i, end, &invalid) - from;
-
- attributes[i].charStop = TRUE;
- if (i)
- attributes[i-1].lineBreakType = HB_Break;
-
- if (boundary > len-1)
- boundary = len;
- i++;
- while (i < boundary) {
- attributes[i].charStop = FALSE;
- ++uc;
- ++i;
- }
- assert(i == boundary);
- }
-}
-
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