Remove unused SEA shaper
This commit is contained in:
Behdad Esfahbod
parent
db1e9cdd41
commit
21cb08a417
|
|
@ -104,8 +104,6 @@ HBSOURCES += \
|
||||||
hb-ot-shape-complex-indic-table.cc \
|
hb-ot-shape-complex-indic-table.cc \
|
||||||
hb-ot-shape-complex-myanmar.cc \
|
hb-ot-shape-complex-myanmar.cc \
|
||||||
hb-ot-shape-complex-myanmar-machine.hh \
|
hb-ot-shape-complex-myanmar-machine.hh \
|
||||||
hb-ot-shape-complex-sea.cc \
|
|
||||||
hb-ot-shape-complex-sea-machine.hh \
|
|
||||||
hb-ot-shape-complex-thai.cc \
|
hb-ot-shape-complex-thai.cc \
|
||||||
hb-ot-shape-complex-tibetan.cc \
|
hb-ot-shape-complex-tibetan.cc \
|
||||||
hb-ot-shape-complex-use.cc \
|
hb-ot-shape-complex-use.cc \
|
||||||
|
|
@ -307,7 +305,6 @@ RAGEL_GENERATED = \
|
||||||
$(srcdir)/hb-buffer-deserialize-text.hh \
|
$(srcdir)/hb-buffer-deserialize-text.hh \
|
||||||
$(srcdir)/hb-ot-shape-complex-indic-machine.hh \
|
$(srcdir)/hb-ot-shape-complex-indic-machine.hh \
|
||||||
$(srcdir)/hb-ot-shape-complex-myanmar-machine.hh \
|
$(srcdir)/hb-ot-shape-complex-myanmar-machine.hh \
|
||||||
$(srcdir)/hb-ot-shape-complex-sea-machine.hh \
|
|
||||||
$(srcdir)/hb-ot-shape-complex-use-machine.hh \
|
$(srcdir)/hb-ot-shape-complex-use-machine.hh \
|
||||||
$(NULL)
|
$(NULL)
|
||||||
BUILT_SOURCES += $(RAGEL_GENERATED)
|
BUILT_SOURCES += $(RAGEL_GENERATED)
|
||||||
|
|
@ -316,7 +313,6 @@ EXTRA_DIST += \
|
||||||
hb-buffer-deserialize-text.rl \
|
hb-buffer-deserialize-text.rl \
|
||||||
hb-ot-shape-complex-indic-machine.rl \
|
hb-ot-shape-complex-indic-machine.rl \
|
||||||
hb-ot-shape-complex-myanmar-machine.rl \
|
hb-ot-shape-complex-myanmar-machine.rl \
|
||||||
hb-ot-shape-complex-sea-machine.rl \
|
|
||||||
hb-ot-shape-complex-use-machine.rl \
|
hb-ot-shape-complex-use-machine.rl \
|
||||||
$(NULL)
|
$(NULL)
|
||||||
MAINTAINERCLEANFILES += $(RAGEL_GENERATED)
|
MAINTAINERCLEANFILES += $(RAGEL_GENERATED)
|
||||||
|
|
|
||||||
|
|
@ -1,102 +0,0 @@
|
||||||
/*
|
|
||||||
* Copyright © 2011,2012,2013 Google, Inc.
|
|
||||||
*
|
|
||||||
* This is part of HarfBuzz, a text shaping 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.
|
|
||||||
*
|
|
||||||
* Google Author(s): Behdad Esfahbod
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef HB_OT_SHAPE_COMPLEX_SEA_MACHINE_HH
|
|
||||||
#define HB_OT_SHAPE_COMPLEX_SEA_MACHINE_HH
|
|
||||||
|
|
||||||
#include "hb-private.hh"
|
|
||||||
|
|
||||||
%%{
|
|
||||||
machine sea_syllable_machine;
|
|
||||||
alphtype unsigned char;
|
|
||||||
write data;
|
|
||||||
}%%
|
|
||||||
|
|
||||||
%%{
|
|
||||||
|
|
||||||
# Same order as enum sea_category_t. Not sure how to avoid duplication.
|
|
||||||
C = 1;
|
|
||||||
GB = 12; # Generic Base
|
|
||||||
H = 4; # Halant
|
|
||||||
IV = 2; # Independent Vowel
|
|
||||||
MR = 22; # Medial Ra
|
|
||||||
CM = 17; # Consonant Medial
|
|
||||||
VAbv = 26;
|
|
||||||
VBlw = 27;
|
|
||||||
VPre = 28;
|
|
||||||
VPst = 29;
|
|
||||||
T = 3; # Tone Marks
|
|
||||||
A = 10; # Anusvara
|
|
||||||
|
|
||||||
syllable_tail = (VPre|VAbv|VBlw|VPst|H.C|CM|MR|T|A)*;
|
|
||||||
|
|
||||||
consonant_syllable = (C|IV|GB) syllable_tail;
|
|
||||||
broken_cluster = syllable_tail;
|
|
||||||
other = any;
|
|
||||||
|
|
||||||
main := |*
|
|
||||||
consonant_syllable => { found_syllable (consonant_syllable); };
|
|
||||||
broken_cluster => { found_syllable (broken_cluster); };
|
|
||||||
other => { found_syllable (non_sea_cluster); };
|
|
||||||
*|;
|
|
||||||
|
|
||||||
|
|
||||||
}%%
|
|
||||||
|
|
||||||
#define found_syllable(syllable_type) \
|
|
||||||
HB_STMT_START { \
|
|
||||||
if (0) fprintf (stderr, "syllable %d..%d %s\n", last, p+1, #syllable_type); \
|
|
||||||
for (unsigned int i = last; i < p+1; i++) \
|
|
||||||
info[i].syllable() = (syllable_serial << 4) | syllable_type; \
|
|
||||||
last = p+1; \
|
|
||||||
syllable_serial++; \
|
|
||||||
if (unlikely (syllable_serial == 16)) syllable_serial = 1; \
|
|
||||||
} HB_STMT_END
|
|
||||||
|
|
||||||
static void
|
|
||||||
find_syllables (hb_buffer_t *buffer)
|
|
||||||
{
|
|
||||||
unsigned int p, pe, eof, ts HB_UNUSED, te HB_UNUSED, act HB_UNUSED;
|
|
||||||
int cs;
|
|
||||||
hb_glyph_info_t *info = buffer->info;
|
|
||||||
%%{
|
|
||||||
write init;
|
|
||||||
getkey info[p].sea_category();
|
|
||||||
}%%
|
|
||||||
|
|
||||||
p = 0;
|
|
||||||
pe = eof = buffer->len;
|
|
||||||
|
|
||||||
unsigned int last = 0;
|
|
||||||
unsigned int syllable_serial = 1;
|
|
||||||
%%{
|
|
||||||
write exec;
|
|
||||||
}%%
|
|
||||||
}
|
|
||||||
|
|
||||||
#undef found_syllable
|
|
||||||
|
|
||||||
#endif /* HB_OT_SHAPE_COMPLEX_SEA_MACHINE_HH */
|
|
||||||
|
|
@ -1,380 +0,0 @@
|
||||||
/*
|
|
||||||
* Copyright © 2011,2012,2013 Google, Inc.
|
|
||||||
*
|
|
||||||
* This is part of HarfBuzz, a text shaping 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.
|
|
||||||
*
|
|
||||||
* Google Author(s): Behdad Esfahbod
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include "hb-ot-shape-complex-indic-private.hh"
|
|
||||||
|
|
||||||
/* buffer var allocations */
|
|
||||||
#define sea_category() complex_var_u8_0() /* indic_category_t */
|
|
||||||
#define sea_position() complex_var_u8_1() /* indic_position_t */
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* South-East Asian shaper.
|
|
||||||
* Loosely based on the Myanmar spec / shaper.
|
|
||||||
* There is no OpenType spec for this.
|
|
||||||
*/
|
|
||||||
|
|
||||||
static const hb_tag_t
|
|
||||||
basic_features[] =
|
|
||||||
{
|
|
||||||
/*
|
|
||||||
* Basic features.
|
|
||||||
* These features are applied in order, one at a time, after initial_reordering.
|
|
||||||
*/
|
|
||||||
HB_TAG('p','r','e','f'),
|
|
||||||
HB_TAG('a','b','v','f'),
|
|
||||||
HB_TAG('b','l','w','f'),
|
|
||||||
HB_TAG('p','s','t','f'),
|
|
||||||
};
|
|
||||||
static const hb_tag_t
|
|
||||||
other_features[] =
|
|
||||||
{
|
|
||||||
/*
|
|
||||||
* Other features.
|
|
||||||
* These features are applied all at once, after final_reordering.
|
|
||||||
*/
|
|
||||||
HB_TAG('p','r','e','s'),
|
|
||||||
HB_TAG('a','b','v','s'),
|
|
||||||
HB_TAG('b','l','w','s'),
|
|
||||||
HB_TAG('p','s','t','s'),
|
|
||||||
/* Positioning features, though we don't care about the types. */
|
|
||||||
HB_TAG('d','i','s','t'),
|
|
||||||
};
|
|
||||||
|
|
||||||
static void
|
|
||||||
setup_syllables (const hb_ot_shape_plan_t *plan,
|
|
||||||
hb_font_t *font,
|
|
||||||
hb_buffer_t *buffer);
|
|
||||||
static void
|
|
||||||
initial_reordering (const hb_ot_shape_plan_t *plan,
|
|
||||||
hb_font_t *font,
|
|
||||||
hb_buffer_t *buffer);
|
|
||||||
static void
|
|
||||||
final_reordering (const hb_ot_shape_plan_t *plan,
|
|
||||||
hb_font_t *font,
|
|
||||||
hb_buffer_t *buffer);
|
|
||||||
|
|
||||||
static void
|
|
||||||
collect_features_sea (hb_ot_shape_planner_t *plan)
|
|
||||||
{
|
|
||||||
hb_ot_map_builder_t *map = &plan->map;
|
|
||||||
|
|
||||||
/* Do this before any lookups have been applied. */
|
|
||||||
map->add_gsub_pause (setup_syllables);
|
|
||||||
|
|
||||||
map->add_global_bool_feature (HB_TAG('l','o','c','l'));
|
|
||||||
/* The Indic specs do not require ccmp, but we apply it here since if
|
|
||||||
* there is a use of it, it's typically at the beginning. */
|
|
||||||
map->add_global_bool_feature (HB_TAG('c','c','m','p'));
|
|
||||||
|
|
||||||
map->add_gsub_pause (initial_reordering);
|
|
||||||
for (unsigned int i = 0; i < ARRAY_LENGTH (basic_features); i++)
|
|
||||||
{
|
|
||||||
map->add_feature (basic_features[i], 1, F_GLOBAL | F_MANUAL_ZWJ);
|
|
||||||
map->add_gsub_pause (NULL);
|
|
||||||
}
|
|
||||||
map->add_gsub_pause (final_reordering);
|
|
||||||
for (unsigned int i = 0; i < ARRAY_LENGTH (other_features); i++)
|
|
||||||
map->add_feature (other_features[i], 1, F_GLOBAL | F_MANUAL_ZWJ);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
override_features_sea (hb_ot_shape_planner_t *plan)
|
|
||||||
{
|
|
||||||
plan->map.add_feature (HB_TAG('l','i','g','a'), 0, F_GLOBAL);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
enum syllable_type_t {
|
|
||||||
consonant_syllable,
|
|
||||||
broken_cluster,
|
|
||||||
non_sea_cluster,
|
|
||||||
};
|
|
||||||
|
|
||||||
#include "hb-ot-shape-complex-sea-machine.hh"
|
|
||||||
|
|
||||||
|
|
||||||
/* Note: This enum is duplicated in the -machine.rl source file.
|
|
||||||
* Not sure how to avoid duplication. */
|
|
||||||
enum sea_category_t {
|
|
||||||
// OT_C = 1,
|
|
||||||
OT_GB = 12, /* Generic Base XXX DOTTED CIRCLE only for now */
|
|
||||||
// OT_H = 4, /* Halant */
|
|
||||||
OT_IV = 2, /* Independent Vowel */
|
|
||||||
OT_MR = 22, /* Medial Ra */
|
|
||||||
// OT_CM = 17, /* Consonant Medial */
|
|
||||||
OT_VAbv = 26,
|
|
||||||
OT_VBlw = 27,
|
|
||||||
OT_VPre = 28,
|
|
||||||
OT_VPst = 29,
|
|
||||||
OT_T = 3, /* Tone Marks */
|
|
||||||
// OT_A = 10, /* Anusvara */
|
|
||||||
};
|
|
||||||
|
|
||||||
static inline void
|
|
||||||
set_sea_properties (hb_glyph_info_t &info)
|
|
||||||
{
|
|
||||||
hb_codepoint_t u = info.codepoint;
|
|
||||||
unsigned int type = hb_indic_get_categories (u);
|
|
||||||
indic_category_t cat = (indic_category_t) (type & 0x7Fu);
|
|
||||||
indic_position_t pos = (indic_position_t) (type >> 8);
|
|
||||||
|
|
||||||
/* Medial Ra */
|
|
||||||
if (u == 0x1A55u || u == 0xAA34u)
|
|
||||||
cat = (indic_category_t) OT_MR;
|
|
||||||
|
|
||||||
if (cat == OT_M)
|
|
||||||
{
|
|
||||||
switch ((int) pos)
|
|
||||||
{
|
|
||||||
case POS_PRE_C: cat = (indic_category_t) OT_VPre; break;
|
|
||||||
case POS_ABOVE_C: cat = (indic_category_t) OT_VAbv; break;
|
|
||||||
case POS_BELOW_C: cat = (indic_category_t) OT_VBlw; break;
|
|
||||||
case POS_POST_C: cat = (indic_category_t) OT_VPst; break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
info.sea_category() = (sea_category_t) cat;
|
|
||||||
info.sea_position() = pos;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
setup_masks_sea (const hb_ot_shape_plan_t *plan HB_UNUSED,
|
|
||||||
hb_buffer_t *buffer,
|
|
||||||
hb_font_t *font HB_UNUSED)
|
|
||||||
{
|
|
||||||
HB_BUFFER_ALLOCATE_VAR (buffer, sea_category);
|
|
||||||
HB_BUFFER_ALLOCATE_VAR (buffer, sea_position);
|
|
||||||
|
|
||||||
/* We cannot setup masks here. We save information about characters
|
|
||||||
* and setup masks later on in a pause-callback. */
|
|
||||||
|
|
||||||
unsigned int count = buffer->len;
|
|
||||||
hb_glyph_info_t *info = buffer->info;
|
|
||||||
for (unsigned int i = 0; i < count; i++)
|
|
||||||
set_sea_properties (info[i]);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
setup_syllables (const hb_ot_shape_plan_t *plan HB_UNUSED,
|
|
||||||
hb_font_t *font HB_UNUSED,
|
|
||||||
hb_buffer_t *buffer)
|
|
||||||
{
|
|
||||||
find_syllables (buffer);
|
|
||||||
}
|
|
||||||
|
|
||||||
static int
|
|
||||||
compare_sea_order (const hb_glyph_info_t *pa, const hb_glyph_info_t *pb)
|
|
||||||
{
|
|
||||||
int a = pa->sea_position();
|
|
||||||
int b = pb->sea_position();
|
|
||||||
|
|
||||||
return a < b ? -1 : a == b ? 0 : +1;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
initial_reordering_consonant_syllable (const hb_ot_shape_plan_t *plan,
|
|
||||||
hb_face_t *face,
|
|
||||||
hb_buffer_t *buffer,
|
|
||||||
unsigned int start, unsigned int end)
|
|
||||||
{
|
|
||||||
hb_glyph_info_t *info = buffer->info;
|
|
||||||
unsigned int base = start;
|
|
||||||
|
|
||||||
/* Reorder! */
|
|
||||||
unsigned int i = start;
|
|
||||||
for (; i < base; i++)
|
|
||||||
info[i].sea_position() = POS_PRE_C;
|
|
||||||
if (i < end)
|
|
||||||
{
|
|
||||||
info[i].sea_position() = POS_BASE_C;
|
|
||||||
i++;
|
|
||||||
}
|
|
||||||
for (; i < end; i++)
|
|
||||||
{
|
|
||||||
if (info[i].sea_category() == OT_MR) /* Pre-base reordering */
|
|
||||||
{
|
|
||||||
info[i].sea_position() = POS_PRE_C;
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
if (info[i].sea_category() == OT_VPre) /* Left matra */
|
|
||||||
{
|
|
||||||
info[i].sea_position() = POS_PRE_M;
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
|
|
||||||
info[i].sea_position() = POS_AFTER_MAIN;
|
|
||||||
}
|
|
||||||
|
|
||||||
buffer->merge_clusters (start, end);
|
|
||||||
/* Sit tight, rock 'n roll! */
|
|
||||||
hb_bubble_sort (info + start, end - start, compare_sea_order);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
initial_reordering_broken_cluster (const hb_ot_shape_plan_t *plan,
|
|
||||||
hb_face_t *face,
|
|
||||||
hb_buffer_t *buffer,
|
|
||||||
unsigned int start, unsigned int end)
|
|
||||||
{
|
|
||||||
/* We already inserted dotted-circles, so just call the consonant_syllable. */
|
|
||||||
initial_reordering_consonant_syllable (plan, face, buffer, start, end);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
initial_reordering_non_sea_cluster (const hb_ot_shape_plan_t *plan HB_UNUSED,
|
|
||||||
hb_face_t *face HB_UNUSED,
|
|
||||||
hb_buffer_t *buffer HB_UNUSED,
|
|
||||||
unsigned int start HB_UNUSED, unsigned int end HB_UNUSED)
|
|
||||||
{
|
|
||||||
/* Nothing to do right now. If we ever switch to using the output
|
|
||||||
* buffer in the reordering process, we'd need to next_glyph() here. */
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
initial_reordering_syllable (const hb_ot_shape_plan_t *plan,
|
|
||||||
hb_face_t *face,
|
|
||||||
hb_buffer_t *buffer,
|
|
||||||
unsigned int start, unsigned int end)
|
|
||||||
{
|
|
||||||
syllable_type_t syllable_type = (syllable_type_t) (buffer->info[start].syllable() & 0x0F);
|
|
||||||
switch (syllable_type) {
|
|
||||||
case consonant_syllable: initial_reordering_consonant_syllable (plan, face, buffer, start, end); return;
|
|
||||||
case broken_cluster: initial_reordering_broken_cluster (plan, face, buffer, start, end); return;
|
|
||||||
case non_sea_cluster: initial_reordering_non_sea_cluster (plan, face, buffer, start, end); return;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline void
|
|
||||||
insert_dotted_circles (const hb_ot_shape_plan_t *plan HB_UNUSED,
|
|
||||||
hb_font_t *font,
|
|
||||||
hb_buffer_t *buffer)
|
|
||||||
{
|
|
||||||
/* Note: This loop is extra overhead, but should not be measurable. */
|
|
||||||
bool has_broken_syllables = false;
|
|
||||||
unsigned int count = buffer->len;
|
|
||||||
hb_glyph_info_t *info = buffer->info;
|
|
||||||
for (unsigned int i = 0; i < count; i++)
|
|
||||||
if ((info[i].syllable() & 0x0F) == broken_cluster)
|
|
||||||
{
|
|
||||||
has_broken_syllables = true;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
if (likely (!has_broken_syllables))
|
|
||||||
return;
|
|
||||||
|
|
||||||
|
|
||||||
hb_codepoint_t dottedcircle_glyph;
|
|
||||||
if (!font->get_glyph (0x25CCu, 0, &dottedcircle_glyph))
|
|
||||||
return;
|
|
||||||
|
|
||||||
hb_glyph_info_t dottedcircle = {0};
|
|
||||||
dottedcircle.codepoint = 0x25CCu;
|
|
||||||
set_sea_properties (dottedcircle);
|
|
||||||
dottedcircle.codepoint = dottedcircle_glyph;
|
|
||||||
|
|
||||||
buffer->clear_output ();
|
|
||||||
|
|
||||||
buffer->idx = 0;
|
|
||||||
unsigned int last_syllable = 0;
|
|
||||||
while (buffer->idx < buffer->len)
|
|
||||||
{
|
|
||||||
unsigned int syllable = buffer->cur().syllable();
|
|
||||||
syllable_type_t syllable_type = (syllable_type_t) (syllable & 0x0F);
|
|
||||||
if (unlikely (last_syllable != syllable && syllable_type == broken_cluster))
|
|
||||||
{
|
|
||||||
last_syllable = syllable;
|
|
||||||
|
|
||||||
hb_glyph_info_t info = dottedcircle;
|
|
||||||
info.cluster = buffer->cur().cluster;
|
|
||||||
info.mask = buffer->cur().mask;
|
|
||||||
info.syllable() = buffer->cur().syllable();
|
|
||||||
|
|
||||||
buffer->output_info (info);
|
|
||||||
}
|
|
||||||
else
|
|
||||||
buffer->next_glyph ();
|
|
||||||
}
|
|
||||||
|
|
||||||
buffer->swap_buffers ();
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
initial_reordering (const hb_ot_shape_plan_t *plan,
|
|
||||||
hb_font_t *font,
|
|
||||||
hb_buffer_t *buffer)
|
|
||||||
{
|
|
||||||
insert_dotted_circles (plan, font, buffer);
|
|
||||||
|
|
||||||
hb_glyph_info_t *info = buffer->info;
|
|
||||||
unsigned int count = buffer->len;
|
|
||||||
if (unlikely (!count)) return;
|
|
||||||
unsigned int last = 0;
|
|
||||||
unsigned int last_syllable = info[0].syllable();
|
|
||||||
for (unsigned int i = 1; i < count; i++)
|
|
||||||
if (last_syllable != info[i].syllable()) {
|
|
||||||
initial_reordering_syllable (plan, font->face, buffer, last, i);
|
|
||||||
last = i;
|
|
||||||
last_syllable = info[last].syllable();
|
|
||||||
}
|
|
||||||
initial_reordering_syllable (plan, font->face, buffer, last, count);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
final_reordering (const hb_ot_shape_plan_t *plan,
|
|
||||||
hb_font_t *font HB_UNUSED,
|
|
||||||
hb_buffer_t *buffer)
|
|
||||||
{
|
|
||||||
hb_glyph_info_t *info = buffer->info;
|
|
||||||
unsigned int count = buffer->len;
|
|
||||||
|
|
||||||
/* Zero syllables now... */
|
|
||||||
for (unsigned int i = 0; i < count; i++)
|
|
||||||
info[i].syllable() = 0;
|
|
||||||
|
|
||||||
HB_BUFFER_DEALLOCATE_VAR (buffer, sea_category);
|
|
||||||
HB_BUFFER_DEALLOCATE_VAR (buffer, sea_position);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
const hb_ot_complex_shaper_t _hb_ot_complex_shaper_sea =
|
|
||||||
{
|
|
||||||
"sea",
|
|
||||||
collect_features_sea,
|
|
||||||
override_features_sea,
|
|
||||||
NULL, /* data_create */
|
|
||||||
NULL, /* data_destroy */
|
|
||||||
NULL, /* preprocess_text */
|
|
||||||
HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT,
|
|
||||||
NULL, /* decompose */
|
|
||||||
NULL, /* compose */
|
|
||||||
setup_masks_sea,
|
|
||||||
HB_OT_SHAPE_ZERO_WIDTH_MARKS_NONE,
|
|
||||||
false, /* fallback_position */
|
|
||||||
};
|
|
||||||
Loading…
Reference in New Issue