author | prr |
Thu, 21 Jun 2018 12:54:30 -0700 | |
changeset 50826 | f5b95be8b6e2 |
parent 50352 | 25db2c8f3cf8 |
child 51303 | 0eeff620cdf5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright © 2009,2010 Red Hat, Inc. |
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* Copyright © 2010,2011,2012 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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* Red Hat Author(s): Behdad Esfahbod |
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* Google Author(s): Behdad Esfahbod |
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*/ |
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|
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#define HB_SHAPER ot |
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#define hb_ot_shaper_face_data_t hb_ot_layout_t |
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#define hb_ot_shaper_shape_plan_data_t hb_ot_shape_plan_t |
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#include "hb-shaper-impl-private.hh" |
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|
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#include "hb-ot-shape-private.hh" |
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#include "hb-ot-shape-complex-private.hh" |
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#include "hb-ot-shape-fallback-private.hh" |
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#include "hb-ot-shape-normalize-private.hh" |
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#include "hb-ot-layout-private.hh" |
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#include "hb-unicode-private.hh" |
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#include "hb-set-private.hh" |
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#include "hb-ot-layout-gsubgpos-private.hh" |
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//#include "hb-aat-layout-private.hh" |
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static hb_tag_t common_features[] = { |
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HB_TAG('c','c','m','p'), |
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HB_TAG('l','o','c','l'), |
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HB_TAG('m','a','r','k'), |
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HB_TAG('m','k','m','k'), |
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HB_TAG('r','l','i','g'), |
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}; |
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static hb_tag_t horizontal_features[] = { |
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HB_TAG('c','a','l','t'), |
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HB_TAG('c','l','i','g'), |
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HB_TAG('c','u','r','s'), |
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HB_TAG('k','e','r','n'), |
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HB_TAG('l','i','g','a'), |
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HB_TAG('r','c','l','t'), |
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}; |
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static void |
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hb_ot_shape_collect_features (hb_ot_shape_planner_t *planner, |
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const hb_segment_properties_t *props, |
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const hb_feature_t *user_features, |
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unsigned int num_user_features) |
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{ |
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hb_ot_map_builder_t *map = &planner->map; |
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map->add_global_bool_feature (HB_TAG('r','v','r','n')); |
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map->add_gsub_pause (nullptr); |
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switch (props->direction) { |
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case HB_DIRECTION_LTR: |
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map->add_global_bool_feature (HB_TAG ('l','t','r','a')); |
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map->add_global_bool_feature (HB_TAG ('l','t','r','m')); |
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break; |
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case HB_DIRECTION_RTL: |
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map->add_global_bool_feature (HB_TAG ('r','t','l','a')); |
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map->add_feature (HB_TAG ('r','t','l','m'), 1, F_NONE); |
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break; |
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case HB_DIRECTION_TTB: |
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case HB_DIRECTION_BTT: |
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case HB_DIRECTION_INVALID: |
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default: |
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break; |
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} |
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map->add_feature (HB_TAG ('f','r','a','c'), 1, F_NONE); |
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map->add_feature (HB_TAG ('n','u','m','r'), 1, F_NONE); |
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map->add_feature (HB_TAG ('d','n','o','m'), 1, F_NONE); |
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if (planner->shaper->collect_features) |
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planner->shaper->collect_features (planner); |
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for (unsigned int i = 0; i < ARRAY_LENGTH (common_features); i++) |
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map->add_global_bool_feature (common_features[i]); |
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if (HB_DIRECTION_IS_HORIZONTAL (props->direction)) |
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for (unsigned int i = 0; i < ARRAY_LENGTH (horizontal_features); i++) |
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map->add_feature (horizontal_features[i], 1, F_GLOBAL | |
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(horizontal_features[i] == HB_TAG('k','e','r','n') ? |
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F_HAS_FALLBACK : F_NONE)); |
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else |
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{ |
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/* We really want to find a 'vert' feature if there's any in the font, no |
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* matter which script/langsys it is listed (or not) under. |
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* See various bugs referenced from: |
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* https://github.com/harfbuzz/harfbuzz/issues/63 */ |
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map->add_feature (HB_TAG ('v','e','r','t'), 1, F_GLOBAL | F_GLOBAL_SEARCH); |
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} |
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if (planner->shaper->override_features) |
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planner->shaper->override_features (planner); |
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for (unsigned int i = 0; i < num_user_features; i++) { |
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const hb_feature_t *feature = &user_features[i]; |
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map->add_feature (feature->tag, feature->value, |
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(feature->start == 0 && feature->end == (unsigned int) -1) ? |
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F_GLOBAL : F_NONE); |
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125 |
} |
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126 |
} |
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127 |
|
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128 |
|
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129 |
/* |
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130 |
* shaper face data |
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131 |
*/ |
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132 |
|
48274 | 133 |
HB_SHAPER_DATA_ENSURE_DEFINE(ot, face) |
134 |
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135 |
hb_ot_shaper_face_data_t * |
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136 |
_hb_ot_shaper_face_data_create (hb_face_t *face) |
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137 |
{ |
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return _hb_ot_layout_create (face); |
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139 |
} |
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140 |
|
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141 |
void |
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142 |
_hb_ot_shaper_face_data_destroy (hb_ot_shaper_face_data_t *data) |
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143 |
{ |
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144 |
_hb_ot_layout_destroy (data); |
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145 |
} |
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146 |
|
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147 |
|
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148 |
/* |
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149 |
* shaper font data |
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150 |
*/ |
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151 |
|
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HB_SHAPER_DATA_ENSURE_DEFINE(ot, font) |
153 |
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struct hb_ot_shaper_font_data_t {}; |
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155 |
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156 |
hb_ot_shaper_font_data_t * |
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_hb_ot_shaper_font_data_create (hb_font_t *font HB_UNUSED) |
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158 |
{ |
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159 |
return (hb_ot_shaper_font_data_t *) HB_SHAPER_DATA_SUCCEEDED; |
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160 |
} |
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161 |
|
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162 |
void |
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163 |
_hb_ot_shaper_font_data_destroy (hb_ot_shaper_font_data_t *data) |
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164 |
{ |
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165 |
} |
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166 |
|
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167 |
|
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168 |
/* |
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169 |
* shaper shape_plan data |
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170 |
*/ |
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171 |
|
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172 |
hb_ot_shaper_shape_plan_data_t * |
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173 |
_hb_ot_shaper_shape_plan_data_create (hb_shape_plan_t *shape_plan, |
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174 |
const hb_feature_t *user_features, |
43232 | 175 |
unsigned int num_user_features, |
176 |
const int *coords, |
|
177 |
unsigned int num_coords) |
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178 |
{ |
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179 |
hb_ot_shape_plan_t *plan = (hb_ot_shape_plan_t *) calloc (1, sizeof (hb_ot_shape_plan_t)); |
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if (unlikely (!plan)) |
48274 | 181 |
return nullptr; |
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182 |
|
50826 | 183 |
plan->init (); |
184 |
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185 |
hb_ot_shape_planner_t planner (shape_plan); |
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186 |
|
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187 |
planner.shaper = hb_ot_shape_complex_categorize (&planner); |
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188 |
|
43232 | 189 |
hb_ot_shape_collect_features (&planner, &shape_plan->props, |
190 |
user_features, num_user_features); |
|
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191 |
|
43232 | 192 |
planner.compile (*plan, coords, num_coords); |
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193 |
|
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194 |
if (plan->shaper->data_create) { |
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195 |
plan->data = plan->shaper->data_create (plan); |
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196 |
if (unlikely (!plan->data)) |
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return nullptr; |
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198 |
} |
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199 |
|
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200 |
return plan; |
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201 |
} |
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202 |
|
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203 |
void |
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204 |
_hb_ot_shaper_shape_plan_data_destroy (hb_ot_shaper_shape_plan_data_t *plan) |
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205 |
{ |
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206 |
if (plan->shaper->data_destroy) |
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207 |
plan->shaper->data_destroy (const_cast<void *> (plan->data)); |
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208 |
|
50826 | 209 |
plan->fini (); |
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210 |
|
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211 |
free (plan); |
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212 |
} |
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213 |
|
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214 |
|
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215 |
/* |
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216 |
* shaper |
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217 |
*/ |
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218 |
|
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219 |
struct hb_ot_shape_context_t |
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220 |
{ |
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221 |
hb_ot_shape_plan_t *plan; |
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222 |
hb_font_t *font; |
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223 |
hb_face_t *face; |
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224 |
hb_buffer_t *buffer; |
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225 |
const hb_feature_t *user_features; |
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226 |
unsigned int num_user_features; |
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227 |
|
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228 |
/* Transient stuff */ |
43232 | 229 |
bool fallback_positioning; |
230 |
bool fallback_glyph_classes; |
|
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231 |
hb_direction_t target_direction; |
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232 |
}; |
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233 |
|
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234 |
|
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235 |
|
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236 |
/* Main shaper */ |
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237 |
|
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238 |
|
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239 |
/* Prepare */ |
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240 |
|
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241 |
static void |
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242 |
hb_set_unicode_props (hb_buffer_t *buffer) |
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243 |
{ |
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244 |
unsigned int count = buffer->len; |
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245 |
hb_glyph_info_t *info = buffer->info; |
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246 |
for (unsigned int i = 0; i < count; i++) |
40435 | 247 |
_hb_glyph_info_set_unicode_props (&info[i], buffer); |
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248 |
} |
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249 |
|
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250 |
static void |
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251 |
hb_insert_dotted_circle (hb_buffer_t *buffer, hb_font_t *font) |
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252 |
{ |
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253 |
if (!(buffer->flags & HB_BUFFER_FLAG_BOT) || |
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254 |
buffer->context_len[0] || |
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255 |
_hb_glyph_info_get_general_category (&buffer->info[0]) != |
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256 |
HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK) |
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257 |
return; |
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258 |
|
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259 |
if (!font->has_glyph (0x25CCu)) |
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260 |
return; |
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261 |
|
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262 |
hb_glyph_info_t dottedcircle = {0}; |
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263 |
dottedcircle.codepoint = 0x25CCu; |
40435 | 264 |
_hb_glyph_info_set_unicode_props (&dottedcircle, buffer); |
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265 |
|
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|
266 |
buffer->clear_output (); |
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|
267 |
|
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|
268 |
buffer->idx = 0; |
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|
269 |
hb_glyph_info_t info = dottedcircle; |
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|
270 |
info.cluster = buffer->cur().cluster; |
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|
271 |
info.mask = buffer->cur().mask; |
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|
272 |
buffer->output_info (info); |
50826 | 273 |
while (buffer->idx < buffer->len && buffer->successful) |
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|
274 |
buffer->next_glyph (); |
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|
275 |
|
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|
276 |
buffer->swap_buffers (); |
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|
277 |
} |
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|
278 |
|
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|
279 |
static void |
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|
280 |
hb_form_clusters (hb_buffer_t *buffer) |
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|
281 |
{ |
48274 | 282 |
if (!(buffer->scratch_flags & HB_BUFFER_SCRATCH_FLAG_HAS_NON_ASCII)) |
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|
283 |
return; |
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|
284 |
|
40435 | 285 |
/* Loop duplicated in hb_ensure_native_direction(), and in _hb-coretext.cc */ |
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|
286 |
unsigned int base = 0; |
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|
287 |
unsigned int count = buffer->len; |
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|
288 |
hb_glyph_info_t *info = buffer->info; |
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|
289 |
for (unsigned int i = 1; i < count; i++) |
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|
290 |
{ |
40435 | 291 |
if (likely (!HB_UNICODE_GENERAL_CATEGORY_IS_MARK (_hb_glyph_info_get_general_category (&info[i])) && |
292 |
!_hb_glyph_info_is_joiner (&info[i]))) |
|
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|
293 |
{ |
48274 | 294 |
if (buffer->cluster_level == HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES) |
295 |
buffer->merge_clusters (base, i); |
|
296 |
else |
|
297 |
buffer->unsafe_to_break (base, i); |
|
34414
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|
298 |
base = i; |
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|
299 |
} |
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|
300 |
} |
48274 | 301 |
if (buffer->cluster_level == HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES) |
302 |
buffer->merge_clusters (base, count); |
|
303 |
else |
|
304 |
buffer->unsafe_to_break (base, count); |
|
34414
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|
305 |
} |
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|
306 |
|
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|
307 |
static void |
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changeset
|
308 |
hb_ensure_native_direction (hb_buffer_t *buffer) |
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parents:
diff
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|
309 |
{ |
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changeset
|
310 |
hb_direction_t direction = buffer->props.direction; |
50826 | 311 |
hb_direction_t horiz_dir = hb_script_get_horizontal_direction (buffer->props.script); |
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|
312 |
|
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|
313 |
/* TODO vertical: |
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changeset
|
314 |
* The only BTT vertical script is Ogham, but it's not clear to me whether OpenType |
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parents:
diff
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|
315 |
* Ogham fonts are supposed to be implemented BTT or not. Need to research that |
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diff
changeset
|
316 |
* first. */ |
50826 | 317 |
if ((HB_DIRECTION_IS_HORIZONTAL (direction) && |
318 |
direction != horiz_dir && horiz_dir != HB_DIRECTION_INVALID) || |
|
319 |
(HB_DIRECTION_IS_VERTICAL (direction) && |
|
320 |
direction != HB_DIRECTION_TTB)) |
|
34414
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|
321 |
{ |
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parents:
diff
changeset
|
322 |
/* Same loop as hb_form_clusters(). |
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prr
parents:
diff
changeset
|
323 |
* Since form_clusters() merged clusters already, we don't merge. */ |
e496a8d8fc8a
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parents:
diff
changeset
|
324 |
unsigned int base = 0; |
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parents:
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changeset
|
325 |
unsigned int count = buffer->len; |
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parents:
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changeset
|
326 |
hb_glyph_info_t *info = buffer->info; |
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parents:
diff
changeset
|
327 |
for (unsigned int i = 1; i < count; i++) |
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parents:
diff
changeset
|
328 |
{ |
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parents:
diff
changeset
|
329 |
if (likely (!HB_UNICODE_GENERAL_CATEGORY_IS_MARK (_hb_glyph_info_get_general_category (&info[i])))) |
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prr
parents:
diff
changeset
|
330 |
{ |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
331 |
if (buffer->cluster_level == HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS) |
e496a8d8fc8a
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parents:
diff
changeset
|
332 |
buffer->merge_clusters (base, i); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
333 |
buffer->reverse_range (base, i); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
334 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
335 |
base = i; |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
336 |
} |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
337 |
} |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
338 |
if (buffer->cluster_level == HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS) |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
339 |
buffer->merge_clusters (base, count); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
340 |
buffer->reverse_range (base, count); |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
341 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
342 |
buffer->reverse (); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
343 |
|
e496a8d8fc8a
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prr
parents:
diff
changeset
|
344 |
buffer->props.direction = HB_DIRECTION_REVERSE (buffer->props.direction); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
345 |
} |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
346 |
} |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
347 |
|
e496a8d8fc8a
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prr
parents:
diff
changeset
|
348 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
349 |
/* Substitute */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
350 |
|
e496a8d8fc8a
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prr
parents:
diff
changeset
|
351 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
352 |
hb_ot_mirror_chars (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
353 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
354 |
if (HB_DIRECTION_IS_FORWARD (c->target_direction)) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
355 |
return; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
356 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
357 |
hb_buffer_t *buffer = c->buffer; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
358 |
hb_unicode_funcs_t *unicode = buffer->unicode; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
359 |
hb_mask_t rtlm_mask = c->plan->rtlm_mask; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
360 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
361 |
unsigned int count = buffer->len; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
362 |
hb_glyph_info_t *info = buffer->info; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
363 |
for (unsigned int i = 0; i < count; i++) { |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
364 |
hb_codepoint_t codepoint = unicode->mirroring (info[i].codepoint); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
365 |
if (likely (codepoint == info[i].codepoint || !c->font->has_glyph (codepoint))) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
366 |
info[i].mask |= rtlm_mask; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
367 |
else |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
368 |
info[i].codepoint = codepoint; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
369 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
370 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
371 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
372 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
373 |
hb_ot_shape_setup_masks_fraction (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
374 |
{ |
40435 | 375 |
if (!(c->buffer->scratch_flags & HB_BUFFER_SCRATCH_FLAG_HAS_NON_ASCII) || |
376 |
!c->plan->has_frac) |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
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parents:
diff
changeset
|
377 |
return; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
378 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
379 |
hb_buffer_t *buffer = c->buffer; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
380 |
|
48274 | 381 |
hb_mask_t pre_mask, post_mask; |
382 |
if (HB_DIRECTION_IS_FORWARD (buffer->props.direction)) |
|
383 |
{ |
|
384 |
pre_mask = c->plan->numr_mask | c->plan->frac_mask; |
|
385 |
post_mask = c->plan->frac_mask | c->plan->dnom_mask; |
|
386 |
} |
|
387 |
else |
|
388 |
{ |
|
389 |
pre_mask = c->plan->frac_mask | c->plan->dnom_mask; |
|
390 |
post_mask = c->plan->numr_mask | c->plan->frac_mask; |
|
391 |
} |
|
392 |
||
34414
e496a8d8fc8a
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prr
parents:
diff
changeset
|
393 |
unsigned int count = buffer->len; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
394 |
hb_glyph_info_t *info = buffer->info; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
395 |
for (unsigned int i = 0; i < count; i++) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
396 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
397 |
if (info[i].codepoint == 0x2044u) /* FRACTION SLASH */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
398 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
399 |
unsigned int start = i, end = i + 1; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
400 |
while (start && |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
401 |
_hb_glyph_info_get_general_category (&info[start - 1]) == |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
402 |
HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
403 |
start--; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
404 |
while (end < count && |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
405 |
_hb_glyph_info_get_general_category (&info[end]) == |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
406 |
HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
407 |
end++; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
408 |
|
48274 | 409 |
buffer->unsafe_to_break (start, end); |
410 |
||
34414
e496a8d8fc8a
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prr
parents:
diff
changeset
|
411 |
for (unsigned int j = start; j < i; j++) |
48274 | 412 |
info[j].mask |= pre_mask; |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
413 |
info[i].mask |= c->plan->frac_mask; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
414 |
for (unsigned int j = i + 1; j < end; j++) |
48274 | 415 |
info[j].mask |= post_mask; |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
416 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
417 |
i = end - 1; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
418 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
419 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
420 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
421 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
422 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
423 |
hb_ot_shape_initialize_masks (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
424 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
425 |
hb_ot_map_t *map = &c->plan->map; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
426 |
hb_buffer_t *buffer = c->buffer; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
427 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
428 |
hb_mask_t global_mask = map->get_global_mask (); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
429 |
buffer->reset_masks (global_mask); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
430 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
431 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
432 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
433 |
hb_ot_shape_setup_masks (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
434 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
435 |
hb_ot_map_t *map = &c->plan->map; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
436 |
hb_buffer_t *buffer = c->buffer; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
437 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
438 |
hb_ot_shape_setup_masks_fraction (c); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
439 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
440 |
if (c->plan->shaper->setup_masks) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
441 |
c->plan->shaper->setup_masks (c->plan, buffer, c->font); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
442 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
443 |
for (unsigned int i = 0; i < c->num_user_features; i++) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
444 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
445 |
const hb_feature_t *feature = &c->user_features[i]; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
446 |
if (!(feature->start == 0 && feature->end == (unsigned int)-1)) { |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
447 |
unsigned int shift; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
448 |
hb_mask_t mask = map->get_mask (feature->tag, &shift); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
449 |
buffer->set_masks (feature->value << shift, mask, feature->start, feature->end); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
450 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
451 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
452 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
453 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
454 |
static void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
455 |
hb_ot_zero_width_default_ignorables (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
456 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
457 |
hb_buffer_t *buffer = c->buffer; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
458 |
|
40435 | 459 |
if (!(buffer->scratch_flags & HB_BUFFER_SCRATCH_FLAG_HAS_DEFAULT_IGNORABLES) || |
50352 | 460 |
(buffer->flags & HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES) || |
461 |
(buffer->flags & HB_BUFFER_FLAG_REMOVE_DEFAULT_IGNORABLES)) |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
462 |
return; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
463 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
464 |
unsigned int count = buffer->len; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
465 |
hb_glyph_info_t *info = buffer->info; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
466 |
hb_glyph_position_t *pos = buffer->pos; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
467 |
unsigned int i = 0; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
468 |
for (i = 0; i < count; i++) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
469 |
if (unlikely (_hb_glyph_info_is_default_ignorable (&info[i]))) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
470 |
pos[i].x_advance = pos[i].y_advance = pos[i].x_offset = pos[i].y_offset = 0; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
471 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
472 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
473 |
static void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
474 |
hb_ot_hide_default_ignorables (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
475 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
476 |
hb_buffer_t *buffer = c->buffer; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
477 |
|
40435 | 478 |
if (!(buffer->scratch_flags & HB_BUFFER_SCRATCH_FLAG_HAS_DEFAULT_IGNORABLES) || |
479 |
(buffer->flags & HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES)) |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
480 |
return; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
481 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
482 |
unsigned int count = buffer->len; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
483 |
hb_glyph_info_t *info = buffer->info; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
484 |
hb_glyph_position_t *pos = buffer->pos; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
485 |
unsigned int i = 0; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
486 |
for (i = 0; i < count; i++) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
487 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
488 |
if (unlikely (_hb_glyph_info_is_default_ignorable (&info[i]))) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
489 |
break; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
490 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
491 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
492 |
/* No default-ignorables found; return. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
493 |
if (i == count) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
494 |
return; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
495 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
496 |
hb_codepoint_t space; |
50352 | 497 |
if (!(buffer->flags & HB_BUFFER_FLAG_REMOVE_DEFAULT_IGNORABLES) && |
498 |
c->font->get_nominal_glyph (' ', &space)) |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
499 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
500 |
/* Replace default-ignorables with a zero-advance space glyph. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
501 |
for (/*continue*/; i < count; i++) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
502 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
503 |
if (_hb_glyph_info_is_default_ignorable (&info[i])) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
504 |
info[i].codepoint = space; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
505 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
506 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
507 |
else |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
508 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
509 |
/* Merge clusters and delete default-ignorables. |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
510 |
* NOTE! We can't use out-buffer as we have positioning data. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
511 |
unsigned int j = i; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
512 |
for (; i < count; i++) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
513 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
514 |
if (_hb_glyph_info_is_default_ignorable (&info[i])) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
515 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
516 |
/* Merge clusters. |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
517 |
* Same logic as buffer->delete_glyph(), but for in-place removal. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
518 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
519 |
unsigned int cluster = info[i].cluster; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
520 |
if (i + 1 < count && cluster == info[i + 1].cluster) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
521 |
continue; /* Cluster survives; do nothing. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
522 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
523 |
if (j) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
524 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
525 |
/* Merge cluster backward. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
526 |
if (cluster < info[j - 1].cluster) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
527 |
{ |
48274 | 528 |
unsigned int mask = info[i].mask; |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
529 |
unsigned int old_cluster = info[j - 1].cluster; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
530 |
for (unsigned k = j; k && info[k - 1].cluster == old_cluster; k--) |
48274 | 531 |
buffer->set_cluster (info[k - 1], cluster, mask); |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
532 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
533 |
continue; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
534 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
535 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
536 |
if (i + 1 < count) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
537 |
buffer->merge_clusters (i, i + 2); /* Merge cluster forward. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
538 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
539 |
continue; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
540 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
541 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
542 |
if (j != i) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
543 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
544 |
info[j] = info[i]; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
545 |
pos[j] = pos[i]; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
546 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
547 |
j++; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
548 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
549 |
buffer->len = j; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
550 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
551 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
552 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
553 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
554 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
555 |
hb_ot_map_glyphs_fast (hb_buffer_t *buffer) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
556 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
557 |
/* Normalization process sets up glyph_index(), we just copy it. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
558 |
unsigned int count = buffer->len; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
559 |
hb_glyph_info_t *info = buffer->info; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
560 |
for (unsigned int i = 0; i < count; i++) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
561 |
info[i].codepoint = info[i].glyph_index(); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
562 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
563 |
buffer->content_type = HB_BUFFER_CONTENT_TYPE_GLYPHS; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
564 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
565 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
566 |
static inline void |
43232 | 567 |
hb_synthesize_glyph_classes (hb_ot_shape_context_t *c) |
568 |
{ |
|
569 |
unsigned int count = c->buffer->len; |
|
570 |
hb_glyph_info_t *info = c->buffer->info; |
|
571 |
for (unsigned int i = 0; i < count; i++) |
|
572 |
{ |
|
573 |
hb_ot_layout_glyph_props_flags_t klass; |
|
574 |
||
575 |
/* Never mark default-ignorables as marks. |
|
576 |
* They won't get in the way of lookups anyway, |
|
577 |
* but having them as mark will cause them to be skipped |
|
578 |
* over if the lookup-flag says so, but at least for the |
|
579 |
* Mongolian variation selectors, looks like Uniscribe |
|
580 |
* marks them as non-mark. Some Mongolian fonts without |
|
581 |
* GDEF rely on this. Another notable character that |
|
582 |
* this applies to is COMBINING GRAPHEME JOINER. */ |
|
583 |
klass = (_hb_glyph_info_get_general_category (&info[i]) != |
|
584 |
HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK || |
|
585 |
_hb_glyph_info_is_default_ignorable (&info[i])) ? |
|
586 |
HB_OT_LAYOUT_GLYPH_PROPS_BASE_GLYPH : |
|
587 |
HB_OT_LAYOUT_GLYPH_PROPS_MARK; |
|
588 |
_hb_glyph_info_set_glyph_props (&info[i], klass); |
|
589 |
} |
|
590 |
} |
|
591 |
||
592 |
static inline void |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
593 |
hb_ot_substitute_default (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
594 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
595 |
hb_buffer_t *buffer = c->buffer; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
596 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
597 |
hb_ot_mirror_chars (c); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
598 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
599 |
HB_BUFFER_ALLOCATE_VAR (buffer, glyph_index); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
600 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
601 |
_hb_ot_shape_normalize (c->plan, buffer, c->font); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
602 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
603 |
hb_ot_shape_setup_masks (c); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
604 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
605 |
/* This is unfortunate to go here, but necessary... */ |
43232 | 606 |
if (c->fallback_positioning) |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
607 |
_hb_ot_shape_fallback_position_recategorize_marks (c->plan, c->font, buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
608 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
609 |
hb_ot_map_glyphs_fast (buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
610 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
611 |
HB_BUFFER_DEALLOCATE_VAR (buffer, glyph_index); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
612 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
613 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
614 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
615 |
hb_ot_substitute_complex (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
616 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
617 |
hb_buffer_t *buffer = c->buffer; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
618 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
619 |
hb_ot_layout_substitute_start (c->font, buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
620 |
|
43232 | 621 |
if (!hb_ot_layout_has_glyph_classes (c->face)) |
622 |
hb_synthesize_glyph_classes (c); |
|
623 |
||
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
624 |
c->plan->substitute (c->font, buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
625 |
|
50352 | 626 |
/* XXX Call morx instead. */ |
627 |
//hb_aat_layout_substitute (c->font, c->buffer); |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
628 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
629 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
630 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
631 |
hb_ot_substitute (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
632 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
633 |
hb_ot_substitute_default (c); |
40435 | 634 |
|
635 |
_hb_buffer_allocate_gsubgpos_vars (c->buffer); |
|
636 |
||
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
637 |
hb_ot_substitute_complex (c); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
638 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
639 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
640 |
/* Position */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
641 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
642 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
643 |
adjust_mark_offsets (hb_glyph_position_t *pos) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
644 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
645 |
pos->x_offset -= pos->x_advance; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
646 |
pos->y_offset -= pos->y_advance; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
647 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
648 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
649 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
650 |
zero_mark_width (hb_glyph_position_t *pos) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
651 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
652 |
pos->x_advance = 0; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
653 |
pos->y_advance = 0; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
654 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
655 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
656 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
657 |
zero_mark_widths_by_gdef (hb_buffer_t *buffer, bool adjust_offsets) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
658 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
659 |
unsigned int count = buffer->len; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
660 |
hb_glyph_info_t *info = buffer->info; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
661 |
for (unsigned int i = 0; i < count; i++) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
662 |
if (_hb_glyph_info_is_mark (&info[i])) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
663 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
664 |
if (adjust_offsets) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
665 |
adjust_mark_offsets (&buffer->pos[i]); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
666 |
zero_mark_width (&buffer->pos[i]); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
667 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
668 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
669 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
670 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
671 |
hb_ot_position_default (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
672 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
673 |
hb_direction_t direction = c->buffer->props.direction; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
674 |
unsigned int count = c->buffer->len; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
675 |
hb_glyph_info_t *info = c->buffer->info; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
676 |
hb_glyph_position_t *pos = c->buffer->pos; |
40435 | 677 |
|
678 |
if (HB_DIRECTION_IS_HORIZONTAL (direction)) |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
679 |
{ |
40435 | 680 |
for (unsigned int i = 0; i < count; i++) |
681 |
pos[i].x_advance = c->font->get_glyph_h_advance (info[i].codepoint); |
|
682 |
/* The nil glyph_h_origin() func returns 0, so no need to apply it. */ |
|
683 |
if (c->font->has_glyph_h_origin_func ()) |
|
684 |
for (unsigned int i = 0; i < count; i++) |
|
685 |
c->font->subtract_glyph_h_origin (info[i].codepoint, |
|
686 |
&pos[i].x_offset, |
|
687 |
&pos[i].y_offset); |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
688 |
} |
40435 | 689 |
else |
690 |
{ |
|
691 |
for (unsigned int i = 0; i < count; i++) |
|
692 |
{ |
|
693 |
pos[i].y_advance = c->font->get_glyph_v_advance (info[i].codepoint); |
|
694 |
c->font->subtract_glyph_v_origin (info[i].codepoint, |
|
695 |
&pos[i].x_offset, |
|
696 |
&pos[i].y_offset); |
|
697 |
} |
|
698 |
} |
|
699 |
if (c->buffer->scratch_flags & HB_BUFFER_SCRATCH_FLAG_HAS_SPACE_FALLBACK) |
|
700 |
_hb_ot_shape_fallback_spaces (c->plan, c->font, c->buffer); |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
701 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
702 |
|
43232 | 703 |
static inline void |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
704 |
hb_ot_position_complex (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
705 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
706 |
unsigned int count = c->buffer->len; |
48274 | 707 |
hb_glyph_info_t *info = c->buffer->info; |
708 |
hb_glyph_position_t *pos = c->buffer->pos; |
|
40435 | 709 |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
710 |
/* If the font has no GPOS, AND, no fallback positioning will |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
711 |
* happen, AND, direction is forward, then when zeroing mark |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
712 |
* widths, we shift the mark with it, such that the mark |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
713 |
* is positioned hanging over the previous glyph. When |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
714 |
* direction is backward we don't shift and it will end up |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
715 |
* hanging over the next glyph after the final reordering. |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
716 |
* If fallback positinoing happens or GPOS is present, we don't |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
717 |
* care. |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
718 |
*/ |
43232 | 719 |
bool adjust_offsets_when_zeroing = c->fallback_positioning && |
720 |
!c->plan->shaper->fallback_position && |
|
721 |
HB_DIRECTION_IS_FORWARD (c->buffer->props.direction); |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
722 |
|
48274 | 723 |
/* We change glyph origin to what GPOS expects (horizontal), apply GPOS, change it back. */ |
724 |
||
725 |
/* The nil glyph_h_origin() func returns 0, so no need to apply it. */ |
|
726 |
if (c->font->has_glyph_h_origin_func ()) |
|
727 |
for (unsigned int i = 0; i < count; i++) |
|
728 |
c->font->add_glyph_h_origin (info[i].codepoint, |
|
729 |
&pos[i].x_offset, |
|
730 |
&pos[i].y_offset); |
|
731 |
||
732 |
hb_ot_layout_position_start (c->font, c->buffer); |
|
733 |
||
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
734 |
switch (c->plan->shaper->zero_width_marks) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
735 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
736 |
case HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
737 |
zero_mark_widths_by_gdef (c->buffer, adjust_offsets_when_zeroing); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
738 |
break; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
739 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
740 |
default: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
741 |
case HB_OT_SHAPE_ZERO_WIDTH_MARKS_NONE: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
742 |
case HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_LATE: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
743 |
break; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
744 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
745 |
|
43232 | 746 |
if (likely (!c->fallback_positioning)) |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
747 |
c->plan->position (c->font, c->buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
748 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
749 |
switch (c->plan->shaper->zero_width_marks) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
750 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
751 |
case HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_LATE: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
752 |
zero_mark_widths_by_gdef (c->buffer, adjust_offsets_when_zeroing); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
753 |
break; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
754 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
755 |
default: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
756 |
case HB_OT_SHAPE_ZERO_WIDTH_MARKS_NONE: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
757 |
case HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
758 |
break; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
759 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
760 |
|
40435 | 761 |
/* Finishing off GPOS has to follow a certain order. */ |
762 |
hb_ot_layout_position_finish_advances (c->font, c->buffer); |
|
763 |
hb_ot_zero_width_default_ignorables (c); |
|
764 |
hb_ot_layout_position_finish_offsets (c->font, c->buffer); |
|
48274 | 765 |
|
766 |
/* The nil glyph_h_origin() func returns 0, so no need to apply it. */ |
|
767 |
if (c->font->has_glyph_h_origin_func ()) |
|
768 |
for (unsigned int i = 0; i < count; i++) |
|
769 |
c->font->subtract_glyph_h_origin (info[i].codepoint, |
|
770 |
&pos[i].x_offset, |
|
771 |
&pos[i].y_offset); |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
772 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
773 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
774 |
static inline void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
775 |
hb_ot_position (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
776 |
{ |
40435 | 777 |
c->buffer->clear_positions (); |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
778 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
779 |
hb_ot_position_default (c); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
780 |
|
43232 | 781 |
hb_ot_position_complex (c); |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
782 |
|
43232 | 783 |
if (c->fallback_positioning && c->plan->shaper->fallback_position) |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
784 |
_hb_ot_shape_fallback_position (c->plan, c->font, c->buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
785 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
786 |
if (HB_DIRECTION_IS_BACKWARD (c->buffer->props.direction)) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
787 |
hb_buffer_reverse (c->buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
788 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
789 |
/* Visual fallback goes here. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
790 |
|
43232 | 791 |
if (c->fallback_positioning) |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
792 |
_hb_ot_shape_fallback_kern (c->plan, c->font, c->buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
793 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
794 |
_hb_buffer_deallocate_gsubgpos_vars (c->buffer); |
50352 | 795 |
|
796 |
//hb_aat_layout_position (c->font, c->buffer); |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
797 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
798 |
|
48274 | 799 |
static inline void |
800 |
hb_propagate_flags (hb_buffer_t *buffer) |
|
801 |
{ |
|
802 |
/* Propagate cluster-level glyph flags to be the same on all cluster glyphs. |
|
803 |
* Simplifies using them. */ |
|
804 |
||
805 |
if (!(buffer->scratch_flags & HB_BUFFER_SCRATCH_FLAG_HAS_UNSAFE_TO_BREAK)) |
|
806 |
return; |
|
807 |
||
808 |
hb_glyph_info_t *info = buffer->info; |
|
809 |
||
810 |
foreach_cluster (buffer, start, end) |
|
811 |
{ |
|
812 |
unsigned int mask = 0; |
|
813 |
for (unsigned int i = start; i < end; i++) |
|
814 |
if (info[i].mask & HB_GLYPH_FLAG_UNSAFE_TO_BREAK) |
|
815 |
{ |
|
816 |
mask = HB_GLYPH_FLAG_UNSAFE_TO_BREAK; |
|
817 |
break; |
|
818 |
} |
|
819 |
if (mask) |
|
820 |
for (unsigned int i = start; i < end; i++) |
|
821 |
info[i].mask |= mask; |
|
822 |
} |
|
823 |
} |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
824 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
825 |
/* Pull it all together! */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
826 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
827 |
static void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
828 |
hb_ot_shape_internal (hb_ot_shape_context_t *c) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
829 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
830 |
c->buffer->deallocate_var_all (); |
40435 | 831 |
c->buffer->scratch_flags = HB_BUFFER_SCRATCH_FLAG_DEFAULT; |
50352 | 832 |
if (likely (!_hb_unsigned_int_mul_overflows (c->buffer->len, HB_BUFFER_MAX_LEN_FACTOR))) |
40435 | 833 |
{ |
50352 | 834 |
c->buffer->max_len = MAX (c->buffer->len * HB_BUFFER_MAX_LEN_FACTOR, |
40435 | 835 |
(unsigned) HB_BUFFER_MAX_LEN_MIN); |
836 |
} |
|
50352 | 837 |
if (likely (!_hb_unsigned_int_mul_overflows (c->buffer->len, HB_BUFFER_MAX_OPS_FACTOR))) |
838 |
{ |
|
839 |
c->buffer->max_ops = MAX (c->buffer->len * HB_BUFFER_MAX_OPS_FACTOR, |
|
840 |
(unsigned) HB_BUFFER_MAX_OPS_MIN); |
|
841 |
} |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
842 |
|
43232 | 843 |
bool disable_otl = c->plan->shaper->disable_otl && c->plan->shaper->disable_otl (c->plan); |
844 |
//c->fallback_substitute = disable_otl || !hb_ot_layout_has_substitution (c->face); |
|
845 |
c->fallback_positioning = disable_otl || !hb_ot_layout_has_positioning (c->face); |
|
846 |
c->fallback_glyph_classes = disable_otl || !hb_ot_layout_has_glyph_classes (c->face); |
|
847 |
||
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
848 |
/* Save the original direction, we use it later. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
849 |
c->target_direction = c->buffer->props.direction; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
850 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
851 |
_hb_buffer_allocate_unicode_vars (c->buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
852 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
853 |
c->buffer->clear_output (); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
854 |
|
48274 | 855 |
hb_ot_shape_initialize_masks (c); |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
856 |
hb_set_unicode_props (c->buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
857 |
hb_insert_dotted_circle (c->buffer, c->font); |
48274 | 858 |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
859 |
hb_form_clusters (c->buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
860 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
861 |
hb_ensure_native_direction (c->buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
862 |
|
40435 | 863 |
if (c->plan->shaper->preprocess_text) |
864 |
c->plan->shaper->preprocess_text (c->plan, c->buffer, c->font); |
|
865 |
||
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
866 |
hb_ot_substitute (c); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
867 |
hb_ot_position (c); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
868 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
869 |
hb_ot_hide_default_ignorables (c); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
870 |
|
40435 | 871 |
if (c->plan->shaper->postprocess_glyphs) |
872 |
c->plan->shaper->postprocess_glyphs (c->plan, c->buffer, c->font); |
|
873 |
||
48274 | 874 |
hb_propagate_flags (c->buffer); |
875 |
||
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
876 |
_hb_buffer_deallocate_unicode_vars (c->buffer); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
877 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
878 |
c->buffer->props.direction = c->target_direction; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
879 |
|
40435 | 880 |
c->buffer->max_len = HB_BUFFER_MAX_LEN_DEFAULT; |
50352 | 881 |
c->buffer->max_ops = HB_BUFFER_MAX_OPS_DEFAULT; |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
882 |
c->buffer->deallocate_var_all (); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
883 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
884 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
885 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
886 |
hb_bool_t |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
887 |
_hb_ot_shape (hb_shape_plan_t *shape_plan, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
888 |
hb_font_t *font, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
889 |
hb_buffer_t *buffer, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
890 |
const hb_feature_t *features, |
e496a8d8fc8a
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parents:
diff
changeset
|
891 |
unsigned int num_features) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
892 |
{ |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
893 |
hb_ot_shape_context_t c = {HB_SHAPER_DATA_GET (shape_plan), font, font->face, buffer, features, num_features}; |
e496a8d8fc8a
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parents:
diff
changeset
|
894 |
hb_ot_shape_internal (&c); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
895 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
896 |
return true; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
897 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
898 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
899 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
900 |
/** |
40435 | 901 |
* hb_ot_shape_plan_collect_lookups: |
902 |
* |
|
34414
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prr
parents:
diff
changeset
|
903 |
* Since: 0.9.7 |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
904 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
905 |
void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
906 |
hb_ot_shape_plan_collect_lookups (hb_shape_plan_t *shape_plan, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
907 |
hb_tag_t table_tag, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
908 |
hb_set_t *lookup_indexes /* OUT */) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
909 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
910 |
/* XXX Does the first part always succeed? */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
911 |
HB_SHAPER_DATA_GET (shape_plan)->collect_lookups (table_tag, lookup_indexes); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
912 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
913 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
914 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
915 |
/* TODO Move this to hb-ot-shape-normalize, make it do decompose, and make it public. */ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
916 |
static void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
917 |
add_char (hb_font_t *font, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
918 |
hb_unicode_funcs_t *unicode, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
919 |
hb_bool_t mirror, |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
920 |
hb_codepoint_t u, |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
921 |
hb_set_t *glyphs) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
922 |
{ |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
923 |
hb_codepoint_t glyph; |
40435 | 924 |
if (font->get_nominal_glyph (u, &glyph)) |
34414
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prr
parents:
diff
changeset
|
925 |
glyphs->add (glyph); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
926 |
if (mirror) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
927 |
{ |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
928 |
hb_codepoint_t m = unicode->mirroring (u); |
40435 | 929 |
if (m != u && font->get_nominal_glyph (m, &glyph)) |
34414
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prr
parents:
diff
changeset
|
930 |
glyphs->add (glyph); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
931 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
932 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
933 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
934 |
|
e496a8d8fc8a
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prr
parents:
diff
changeset
|
935 |
/** |
40435 | 936 |
* hb_ot_shape_glyphs_closure: |
937 |
* |
|
34414
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prr
parents:
diff
changeset
|
938 |
* Since: 0.9.2 |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
939 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
940 |
void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
941 |
hb_ot_shape_glyphs_closure (hb_font_t *font, |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
942 |
hb_buffer_t *buffer, |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
943 |
const hb_feature_t *features, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
944 |
unsigned int num_features, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
945 |
hb_set_t *glyphs) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
946 |
{ |
48274 | 947 |
const char *shapers[] = {"ot", nullptr}; |
34414
e496a8d8fc8a
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prr
parents:
diff
changeset
|
948 |
hb_shape_plan_t *shape_plan = hb_shape_plan_create_cached (font->face, &buffer->props, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
949 |
features, num_features, shapers); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
950 |
|
e496a8d8fc8a
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prr
parents:
diff
changeset
|
951 |
bool mirror = hb_script_get_horizontal_direction (buffer->props.script) == HB_DIRECTION_RTL; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
952 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
953 |
unsigned int count = buffer->len; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
954 |
hb_glyph_info_t *info = buffer->info; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
955 |
for (unsigned int i = 0; i < count; i++) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
956 |
add_char (font, buffer->unicode, mirror, info[i].codepoint, glyphs); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
957 |
|
48274 | 958 |
hb_set_t *lookups = hb_set_create (); |
959 |
hb_ot_shape_plan_collect_lookups (shape_plan, HB_OT_TAG_GSUB, lookups); |
|
50826 | 960 |
hb_ot_layout_lookups_substitute_closure (font->face, lookups, glyphs); |
48274 | 961 |
|
962 |
hb_set_destroy (lookups); |
|
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
963 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
964 |
hb_shape_plan_destroy (shape_plan); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
965 |
} |