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https://github.com/python-pillow/Pillow.git
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raqm: avoid declaring variables in for statement for C89 compatibility
This commit is contained in:
nulano
Andrew Murray
parent
c3fce854f2
commit
f2b2d53ca8
127
src/thirdparty/raqm/raqm.c
vendored
127
src/thirdparty/raqm/raqm.c
vendored
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@ -220,6 +220,7 @@ static bool
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_raqm_init_text_info (raqm_t *rq)
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{
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hb_language_t default_lang;
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size_t i;
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if (rq->text_info)
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return true;
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@ -229,7 +230,7 @@ _raqm_init_text_info (raqm_t *rq)
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return false;
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default_lang = hb_language_get_default ();
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for (size_t i = 0; i < rq->text_len; i++)
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for (i = 0; i < rq->text_len; i++)
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{
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rq->text_info[i].ftface = NULL;
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rq->text_info[i].lang = default_lang;
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@ -242,10 +243,12 @@ _raqm_init_text_info (raqm_t *rq)
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static void
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_raqm_free_text_info (raqm_t *rq)
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{
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size_t i;
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if (!rq->text_info)
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return;
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for (size_t i = 0; i < rq->text_len; i++)
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for (i = 0; i < rq->text_len; i++)
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{
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if (rq->text_info[i].ftface)
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FT_Done_Face (rq->text_info[i].ftface);
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@ -551,6 +554,7 @@ raqm_set_language (raqm_t *rq,
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size_t len)
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{
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hb_language_t language;
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size_t i;
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size_t end = start + len;
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if (!rq)
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@ -572,7 +576,7 @@ raqm_set_language (raqm_t *rq,
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return false;
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language = hb_language_from_string (lang, -1);
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for (size_t i = start; i < end; i++)
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for (i = start; i < end; i++)
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{
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rq->text_info[i].lang = language;
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}
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@ -646,6 +650,8 @@ _raqm_set_freetype_face (raqm_t *rq,
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size_t start,
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size_t end)
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{
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size_t i;
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if (!rq)
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return false;
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@ -658,7 +664,7 @@ _raqm_set_freetype_face (raqm_t *rq,
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if (!rq->text_info)
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return false;
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for (size_t i = start; i < end; i++)
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for (i = start; i < end; i++)
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{
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if (rq->text_info[i].ftface)
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FT_Done_Face (rq->text_info[i].ftface);
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@ -832,6 +838,8 @@ _raqm_shape (raqm_t *rq);
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bool
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raqm_layout (raqm_t *rq)
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{
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size_t i;
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if (!rq)
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return false;
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@ -841,7 +849,7 @@ raqm_layout (raqm_t *rq)
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if (!rq->text_info)
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return false;
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for (size_t i = 0; i < rq->text_len; i++)
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for (i = 0; i < rq->text_len; i++)
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{
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if (!rq->text_info[i].ftface)
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return false;
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@ -879,6 +887,9 @@ raqm_glyph_t *
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raqm_get_glyphs (raqm_t *rq,
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size_t *length)
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{
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size_t i;
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raqm_run_t *run;
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size_t count = 0;
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if (!rq || !rq->runs || !length)
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@ -888,7 +899,7 @@ raqm_get_glyphs (raqm_t *rq,
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return NULL;
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}
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for (raqm_run_t *run = rq->runs; run != NULL; run = run->next)
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for (run = rq->runs; run != NULL; run = run->next)
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count += hb_buffer_get_length (run->buffer);
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*length = count;
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@ -906,7 +917,7 @@ raqm_get_glyphs (raqm_t *rq,
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RAQM_TEST ("Glyph information:\n");
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count = 0;
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for (raqm_run_t *run = rq->runs; run != NULL; run = run->next)
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for (run = rq->runs; run != NULL; run = run->next)
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{
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size_t len;
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hb_glyph_info_t *info;
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@ -916,7 +927,7 @@ raqm_get_glyphs (raqm_t *rq,
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info = hb_buffer_get_glyph_infos (run->buffer, NULL);
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position = hb_buffer_get_glyph_positions (run->buffer, NULL);
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for (size_t i = 0; i < len; i++)
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for (i = 0; i < len; i++)
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{
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rq->glyphs[count + i].index = info[i].codepoint;
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rq->glyphs[count + i].cluster = info[i].cluster;
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@ -939,18 +950,18 @@ raqm_get_glyphs (raqm_t *rq,
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{
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#ifdef RAQM_TESTING
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RAQM_TEST ("\nUTF-32 clusters:");
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for (size_t i = 0; i < count; i++)
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for (i = 0; i < count; i++)
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RAQM_TEST (" %02d", rq->glyphs[i].cluster);
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RAQM_TEST ("\n");
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#endif
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for (size_t i = 0; i < count; i++)
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for (i = 0; i < count; i++)
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rq->glyphs[i].cluster = _raqm_u32_to_u8_index (rq,
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rq->glyphs[i].cluster);
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#ifdef RAQM_TESTING
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RAQM_TEST ("UTF-8 clusters: ");
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for (size_t i = 0; i < count; i++)
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for (i = 0; i < count; i++)
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RAQM_TEST (" %02d", rq->glyphs[i].cluster);
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RAQM_TEST ("\n");
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#endif
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@ -983,9 +994,11 @@ typedef struct {
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static void
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_raqm_reverse_run (_raqm_bidi_run *run, const size_t len)
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{
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size_t i;
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assert (run);
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for (size_t i = 0; i < len / 2; i++)
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for (i = 0; i < len / 2; i++)
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{
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_raqm_bidi_run temp = run[i];
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run[i] = run[len - 1 - i];
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@ -1002,6 +1015,7 @@ _raqm_reorder_runs (const FriBidiCharType *types,
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/* output */
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size_t *run_count)
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{
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size_t i;
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FriBidiLevel level;
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FriBidiLevel last_level = -1;
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FriBidiLevel max_level = 0;
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@ -1021,8 +1035,7 @@ _raqm_reorder_runs (const FriBidiCharType *types,
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/* L1. Reset the embedding levels of some chars:
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4. any sequence of white space characters at the end of the line. */
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for (int i = len - 1;
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i >= 0 && FRIBIDI_IS_EXPLICIT_OR_BN_OR_WS (types[i]); i--)
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for (i = len; i-- > 0 && FRIBIDI_IS_EXPLICIT_OR_BN_OR_WS (types[i]); )
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{
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levels[i] = FRIBIDI_DIR_TO_LEVEL (base_dir);
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}
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@ -1030,13 +1043,13 @@ _raqm_reorder_runs (const FriBidiCharType *types,
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/* Find max_level of the line. We don't reuse the paragraph
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* max_level, both for a cleaner API, and that the line max_level
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* may be far less than paragraph max_level. */
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for (int i = len - 1; i >= 0; i--)
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for (i = len; i-- > 0; )
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{
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if (levels[i] > max_level)
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max_level = levels[i];
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}
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for (size_t i = 0; i < len; i++)
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for (i = 0; i < len; i++)
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{
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if (levels[i] != last_level)
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count++;
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@ -1064,14 +1077,16 @@ _raqm_reorder_runs (const FriBidiCharType *types,
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/* L2. Reorder. */
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for (level = max_level; level > 0; level--)
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{
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for (int i = count - 1; i >= 0; i--)
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for (i = count; i-- > 0; )
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{
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if (runs[i].level >= level)
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{
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int end = i;
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for (i--; (i >= 0 && runs[i].level >= level); i--)
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for (; (i > 0 && runs[i - 1].level >= level); i--)
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;
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_raqm_reverse_run (runs + i + 1, end - i);
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_raqm_reverse_run (runs + i, end - i + 1);
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if (i-- == 0)
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break;
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}
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}
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}
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@ -1083,6 +1098,8 @@ _raqm_reorder_runs (const FriBidiCharType *types,
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static bool
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_raqm_itemize (raqm_t *rq)
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{
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size_t i, j;
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raqm_run_t *run;
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FriBidiParType par_type = FRIBIDI_PAR_ON;
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FriBidiCharType *types;
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#ifdef USE_FRIBIDI_EX_API
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@ -1185,7 +1202,7 @@ _raqm_itemize (raqm_t *rq)
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RAQM_TEST ("Number of runs before script itemization: %zu\n\n", run_count);
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RAQM_TEST ("Fribidi Runs:\n");
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for (size_t i = 0; i < run_count; i++)
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for (i = 0; i < run_count; i++)
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{
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RAQM_TEST ("run[%zu]:\t start: %zu\tlength: %zu\tlevel: %d\n",
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i, runs[i].pos, runs[i].len, runs[i].level);
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@ -1194,7 +1211,7 @@ _raqm_itemize (raqm_t *rq)
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#endif
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last = NULL;
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for (size_t i = 0; i < run_count; i++)
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for (i = 0; i < run_count; i++)
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{
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raqm_run_t *run = calloc (1, sizeof (raqm_run_t));
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if (!run)
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@ -1216,7 +1233,7 @@ _raqm_itemize (raqm_t *rq)
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run->pos = runs[i].pos + runs[i].len - 1;
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run->script = rq->text_info[run->pos].script;
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run->font = _raqm_create_hb_font (rq, rq->text_info[run->pos].ftface);
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for (int j = runs[i].len - 1; j >= 0; j--)
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for (j = runs[i].len; j-- > 0; )
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{
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_raqm_text_info info = rq->text_info[runs[i].pos + j];
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if (!_raqm_compare_text_info (rq->text_info[run->pos], info))
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@ -1247,7 +1264,7 @@ _raqm_itemize (raqm_t *rq)
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run->pos = runs[i].pos;
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run->script = rq->text_info[run->pos].script;
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run->font = _raqm_create_hb_font (rq, rq->text_info[run->pos].ftface);
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for (size_t j = 0; j < runs[i].len; j++)
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for (j = 0; j < runs[i].len; j++)
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{
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_raqm_text_info info = rq->text_info[runs[i].pos + j];
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if (!_raqm_compare_text_info (rq->text_info[run->pos], info))
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@ -1277,13 +1294,13 @@ _raqm_itemize (raqm_t *rq)
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#ifdef RAQM_TESTING
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run_count = 0;
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for (raqm_run_t *run = rq->runs; run != NULL; run = run->next)
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for (run = rq->runs; run != NULL; run = run->next)
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run_count++;
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RAQM_TEST ("Number of runs after script itemization: %zu\n\n", run_count);
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run_count = 0;
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RAQM_TEST ("Final Runs:\n");
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for (raqm_run_t *run = rq->runs; run != NULL; run = run->next)
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for (run = rq->runs; run != NULL; run = run->next)
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{
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SCRIPT_TO_STRING (run->script);
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RAQM_TEST ("run[%zu]:\t start: %d\tlength: %d\tdirection: %s\tscript: %s\tfont: %s\n",
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@ -1448,18 +1465,19 @@ _get_pair_index (const FriBidiChar ch)
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static bool
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_raqm_resolve_scripts (raqm_t *rq)
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{
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int last_script_index = -1;
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int last_set_index = -1;
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size_t i, j;
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size_t next_script_index = 0;
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size_t next_set_index = 0;
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hb_script_t last_script = HB_SCRIPT_INVALID;
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_raqm_stack_t *stack = NULL;
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hb_unicode_funcs_t* unicode_funcs = hb_unicode_funcs_get_default ();
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for (size_t i = 0; i < rq->text_len; ++i)
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for (i = 0; i < rq->text_len; ++i)
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rq->text_info[i].script = hb_unicode_script (unicode_funcs, rq->text[i]);
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#ifdef RAQM_TESTING
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RAQM_TEST ("Before script detection:\n");
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for (size_t i = 0; i < rq->text_len; ++i)
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for (i = 0; i < rq->text_len; ++i)
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{
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SCRIPT_TO_STRING (rq->text_info[i].script);
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RAQM_TEST ("script for ch[%zu]\t%s\n", i, buff);
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@ -1471,9 +1489,9 @@ _raqm_resolve_scripts (raqm_t *rq)
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if (!stack)
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return false;
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for (int i = 0; i < (int) rq->text_len; i++)
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for (i = 0; i < rq->text_len; i++)
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{
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if (rq->text_info[i].script == HB_SCRIPT_COMMON && last_script_index != -1)
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if (rq->text_info[i].script == HB_SCRIPT_COMMON && next_script_index != 0)
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{
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int pair_index = _get_pair_index (rq->text[i]);
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if (pair_index >= 0)
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@ -1482,7 +1500,7 @@ _raqm_resolve_scripts (raqm_t *rq)
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{
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/* is a paired character */
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rq->text_info[i].script = last_script;
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last_set_index = i;
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next_set_index = i + 1;
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_raqm_stack_push (stack, rq->text_info[i].script, pair_index);
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}
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else
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@ -1499,34 +1517,34 @@ _raqm_resolve_scripts (raqm_t *rq)
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{
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rq->text_info[i].script = _raqm_stack_top (stack);
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last_script = rq->text_info[i].script;
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last_set_index = i;
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next_set_index = i + 1;
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}
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else
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{
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rq->text_info[i].script = last_script;
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last_set_index = i;
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next_set_index = i + 1;
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}
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}
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}
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else
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{
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rq->text_info[i].script = last_script;
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last_set_index = i;
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next_set_index = i + 1;
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}
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}
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else if (rq->text_info[i].script == HB_SCRIPT_INHERITED &&
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last_script_index != -1)
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next_script_index != 0)
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{
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rq->text_info[i].script = last_script;
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last_set_index = i;
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next_set_index = i + 1;
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}
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else
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{
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for (int j = last_set_index + 1; j < i; ++j)
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for (j = next_set_index; j < i; ++j)
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rq->text_info[j].script = rq->text_info[i].script;
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last_script = rq->text_info[i].script;
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last_script_index = i;
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last_set_index = i;
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next_script_index = i + 1;
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next_set_index = i + 1;
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}
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}
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@ -1534,7 +1552,7 @@ _raqm_resolve_scripts (raqm_t *rq)
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* take the script if the next character.
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* https://github.com/HOST-Oman/libraqm/issues/95
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*/
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for (int i = rq->text_len - 2; i >= 0; --i)
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for (i = rq->text_len - 1; i-- > 0; )
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{
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if (rq->text_info[i].script == HB_SCRIPT_INHERITED ||
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rq->text_info[i].script == HB_SCRIPT_COMMON)
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@ -1543,7 +1561,7 @@ _raqm_resolve_scripts (raqm_t *rq)
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#ifdef RAQM_TESTING
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RAQM_TEST ("After script detection:\n");
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for (size_t i = 0; i < rq->text_len; ++i)
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for (i = 0; i < rq->text_len; ++i)
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{
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SCRIPT_TO_STRING (rq->text_info[i].script);
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RAQM_TEST ("script for ch[%zu]\t%s\n", i, buff);
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@ -1559,6 +1577,7 @@ _raqm_resolve_scripts (raqm_t *rq)
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static bool
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_raqm_shape (raqm_t *rq)
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{
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raqm_run_t *run;
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hb_buffer_flags_t hb_buffer_flags = HB_BUFFER_FLAG_BOT | HB_BUFFER_FLAG_EOT;
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#if defined(HAVE_DECL_HB_BUFFER_FLAG_REMOVE_DEFAULT_IGNORABLES) && \
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@ -1567,7 +1586,7 @@ _raqm_shape (raqm_t *rq)
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hb_buffer_flags |= HB_BUFFER_FLAG_REMOVE_DEFAULT_IGNORABLES;
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#endif
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|
||||
for (raqm_run_t *run = rq->runs; run != NULL; run = run->next)
|
||||
for (run = rq->runs; run != NULL; run = run->next)
|
||||
{
|
||||
run->buffer = hb_buffer_create ();
|
||||
|
||||
|
|
@ -1653,6 +1672,8 @@ raqm_index_to_position (raqm_t *rq,
|
|||
int *x,
|
||||
int *y)
|
||||
{
|
||||
size_t i, j;
|
||||
raqm_run_t *run;
|
||||
/* We don't currently support multiline, so y is always 0 */
|
||||
*y = 0;
|
||||
*x = 0;
|
||||
|
|
@ -1676,7 +1697,7 @@ raqm_index_to_position (raqm_t *rq,
|
|||
++*index;
|
||||
}
|
||||
|
||||
for (raqm_run_t *run = rq->runs; run != NULL; run = run->next)
|
||||
for (run = rq->runs; run != NULL; run = run->next)
|
||||
{
|
||||
size_t len;
|
||||
hb_glyph_info_t *info;
|
||||
|
|
@ -1685,7 +1706,7 @@ raqm_index_to_position (raqm_t *rq,
|
|||
info = hb_buffer_get_glyph_infos (run->buffer, NULL);
|
||||
position = hb_buffer_get_glyph_positions (run->buffer, NULL);
|
||||
|
||||
for (size_t i = 0; i < len; i++)
|
||||
for (i = 0; i < len; i++)
|
||||
{
|
||||
uint32_t curr_cluster = info[i].cluster;
|
||||
uint32_t next_cluster = curr_cluster;
|
||||
|
|
@ -1693,13 +1714,12 @@ raqm_index_to_position (raqm_t *rq,
|
|||
|
||||
if (run->direction == HB_DIRECTION_LTR)
|
||||
{
|
||||
for (size_t j = i + 1; j < len && next_cluster == curr_cluster; j++)
|
||||
for (j = i + 1; j < len && next_cluster == curr_cluster; j++)
|
||||
next_cluster = info[j].cluster;
|
||||
}
|
||||
else
|
||||
{
|
||||
for (int j = i - 1; i != 0 && j >= 0 && next_cluster == curr_cluster;
|
||||
j--)
|
||||
for (j = i; i != 0 && j-- > 0 && next_cluster == curr_cluster; )
|
||||
next_cluster = info[j].cluster;
|
||||
}
|
||||
|
||||
|
|
@ -1745,6 +1765,8 @@ raqm_position_to_index (raqm_t *rq,
|
|||
int y,
|
||||
size_t *index)
|
||||
{
|
||||
size_t i, j;
|
||||
raqm_run_t *run;
|
||||
int delta_x = 0, current_x = 0;
|
||||
(void)y;
|
||||
|
||||
|
|
@ -1762,7 +1784,7 @@ raqm_position_to_index (raqm_t *rq,
|
|||
|
||||
RAQM_TEST ("\n");
|
||||
|
||||
for (raqm_run_t *run = rq->runs; run != NULL; run = run->next)
|
||||
for (run = rq->runs; run != NULL; run = run->next)
|
||||
{
|
||||
size_t len;
|
||||
hb_glyph_info_t *info;
|
||||
|
|
@ -1771,7 +1793,7 @@ raqm_position_to_index (raqm_t *rq,
|
|||
info = hb_buffer_get_glyph_infos (run->buffer, NULL);
|
||||
position = hb_buffer_get_glyph_positions (run->buffer, NULL);
|
||||
|
||||
for (size_t i = 0; i < len; i++)
|
||||
for (i = 0; i < len; i++)
|
||||
{
|
||||
delta_x = position[i].x_advance;
|
||||
if (x < (current_x + delta_x))
|
||||
|
|
@ -1789,11 +1811,10 @@ raqm_position_to_index (raqm_t *rq,
|
|||
uint32_t curr_cluster = info[i].cluster;
|
||||
uint32_t next_cluster = curr_cluster;
|
||||
if (run->direction == HB_DIRECTION_LTR)
|
||||
for (size_t j = i + 1; j < len && next_cluster == curr_cluster; j++)
|
||||
for (j = i + 1; j < len && next_cluster == curr_cluster; j++)
|
||||
next_cluster = info[j].cluster;
|
||||
else
|
||||
for (int j = i - 1; i != 0 && j >= 0 && next_cluster == curr_cluster;
|
||||
j--)
|
||||
for (j = i; i != 0 && j-- > 0 && next_cluster == curr_cluster; )
|
||||
next_cluster = info[j].cluster;
|
||||
|
||||
if (next_cluster == curr_cluster)
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user