diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-font.cc')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-font.cc | 339 |
1 files changed, 0 insertions, 339 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-font.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-font.cc deleted file mode 100644 index fae7b5b65af..00000000000 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-font.cc +++ /dev/null @@ -1,339 +0,0 @@ -/* - * Copyright © 2011,2014 Google, Inc. - * - * This is part of HarfBuzz, a text shaping library. - * - * Permission is hereby granted, without written agreement and without - * license or royalty fees, to use, copy, modify, and distribute this - * software and its documentation for any purpose, provided that the - * above copyright notice and the following two paragraphs appear in - * all copies of this software. - * - * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR - * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES - * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN - * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH - * DAMAGE. - * - * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS - * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO - * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. - * - * Google Author(s): Behdad Esfahbod, Roozbeh Pournader - */ - -#include "hb.hh" - -#ifndef HB_NO_OT_FONT - -#include "hb-ot.h" - -#include "hb-font.hh" -#include "hb-machinery.hh" -#include "hb-ot-face.hh" - -#include "hb-ot-cmap-table.hh" -#include "hb-ot-glyf-table.hh" -#include "hb-ot-cff1-table.hh" -#include "hb-ot-cff2-table.hh" -#include "hb-ot-hmtx-table.hh" -#include "hb-ot-os2-table.hh" -#include "hb-ot-post-table.hh" -#include "hb-ot-stat-table.hh" // Just so we compile it; unused otherwise. -#include "hb-ot-vorg-table.hh" -#include "hb-ot-color-cbdt-table.hh" -#include "hb-ot-color-sbix-table.hh" - - -/** - * SECTION:hb-ot-font - * @title: hb-ot-font - * @short_description: OpenType font implementation - * @include: hb-ot.h - * - * Functions for using OpenType fonts with hb_shape(). Note that fonts returned - * by hb_font_create() default to using these functions, so most clients would - * never need to call these functions directly. - **/ - - -static hb_bool_t -hb_ot_get_nominal_glyph (hb_font_t *font HB_UNUSED, - void *font_data, - hb_codepoint_t unicode, - hb_codepoint_t *glyph, - void *user_data HB_UNUSED) -{ - const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data; - return ot_face->cmap->get_nominal_glyph (unicode, glyph); -} - -static unsigned int -hb_ot_get_nominal_glyphs (hb_font_t *font HB_UNUSED, - void *font_data, - unsigned int count, - const hb_codepoint_t *first_unicode, - unsigned int unicode_stride, - hb_codepoint_t *first_glyph, - unsigned int glyph_stride, - void *user_data HB_UNUSED) -{ - const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data; - return ot_face->cmap->get_nominal_glyphs (count, - first_unicode, unicode_stride, - first_glyph, glyph_stride); -} - -static hb_bool_t -hb_ot_get_variation_glyph (hb_font_t *font HB_UNUSED, - void *font_data, - hb_codepoint_t unicode, - hb_codepoint_t variation_selector, - hb_codepoint_t *glyph, - void *user_data HB_UNUSED) -{ - const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data; - return ot_face->cmap->get_variation_glyph (unicode, variation_selector, glyph); -} - -static void -hb_ot_get_glyph_h_advances (hb_font_t* font, void* font_data, - unsigned count, - const hb_codepoint_t *first_glyph, - unsigned glyph_stride, - hb_position_t *first_advance, - unsigned advance_stride, - void *user_data HB_UNUSED) -{ - const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data; - const OT::hmtx_accelerator_t &hmtx = *ot_face->hmtx; - - for (unsigned int i = 0; i < count; i++) - { - *first_advance = font->em_scale_x (hmtx.get_advance (*first_glyph, font)); - first_glyph = &StructAtOffsetUnaligned<hb_codepoint_t> (first_glyph, glyph_stride); - first_advance = &StructAtOffsetUnaligned<hb_position_t> (first_advance, advance_stride); - } -} - -static void -hb_ot_get_glyph_v_advances (hb_font_t* font, void* font_data, - unsigned count, - const hb_codepoint_t *first_glyph, - unsigned glyph_stride, - hb_position_t *first_advance, - unsigned advance_stride, - void *user_data HB_UNUSED) -{ - const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data; - const OT::vmtx_accelerator_t &vmtx = *ot_face->vmtx; - - for (unsigned int i = 0; i < count; i++) - { - *first_advance = font->em_scale_y (-(int) vmtx.get_advance (*first_glyph, font)); - first_glyph = &StructAtOffsetUnaligned<hb_codepoint_t> (first_glyph, glyph_stride); - first_advance = &StructAtOffsetUnaligned<hb_position_t> (first_advance, advance_stride); - } -} - -static hb_bool_t -hb_ot_get_glyph_v_origin (hb_font_t *font, - void *font_data, - hb_codepoint_t glyph, - hb_position_t *x, - hb_position_t *y, - void *user_data HB_UNUSED) -{ - const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data; - - *x = font->get_glyph_h_advance (glyph) / 2; - -#ifndef HB_NO_OT_FONT_CFF - const OT::VORG &VORG = *ot_face->VORG; - if (VORG.has_data ()) - { - *y = font->em_scale_y (VORG.get_y_origin (glyph)); - return true; - } -#endif - - hb_glyph_extents_t extents = {0}; - if (ot_face->glyf->get_extents (font, glyph, &extents)) - { - const OT::vmtx_accelerator_t &vmtx = *ot_face->vmtx; - hb_position_t tsb = vmtx.get_side_bearing (font, glyph); - *y = extents.y_bearing + font->em_scale_y (tsb); - return true; - } - - hb_font_extents_t font_extents; - font->get_h_extents_with_fallback (&font_extents); - *y = font_extents.ascender; - - return true; -} - -static hb_bool_t -hb_ot_get_glyph_extents (hb_font_t *font, - void *font_data, - hb_codepoint_t glyph, - hb_glyph_extents_t *extents, - void *user_data HB_UNUSED) -{ - const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data; - -#if !defined(HB_NO_OT_FONT_BITMAP) && !defined(HB_NO_COLOR) - if (ot_face->sbix->get_extents (font, glyph, extents)) return true; -#endif - if (ot_face->glyf->get_extents (font, glyph, extents)) return true; -#ifndef HB_NO_OT_FONT_CFF - if (ot_face->cff1->get_extents (font, glyph, extents)) return true; - if (ot_face->cff2->get_extents (font, glyph, extents)) return true; -#endif -#if !defined(HB_NO_OT_FONT_BITMAP) && !defined(HB_NO_COLOR) - if (ot_face->CBDT->get_extents (font, glyph, extents)) return true; -#endif - - // TODO Hook up side-bearings variations. - return false; -} - -#ifndef HB_NO_OT_FONT_GLYPH_NAMES -static hb_bool_t -hb_ot_get_glyph_name (hb_font_t *font HB_UNUSED, - void *font_data, - hb_codepoint_t glyph, - char *name, unsigned int size, - void *user_data HB_UNUSED) -{ - const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data; - if (ot_face->post->get_glyph_name (glyph, name, size)) return true; -#ifndef HB_NO_OT_FONT_CFF - if (ot_face->cff1->get_glyph_name (glyph, name, size)) return true; -#endif - return false; -} -static hb_bool_t -hb_ot_get_glyph_from_name (hb_font_t *font HB_UNUSED, - void *font_data, - const char *name, int len, - hb_codepoint_t *glyph, - void *user_data HB_UNUSED) -{ - const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data; - if (ot_face->post->get_glyph_from_name (name, len, glyph)) return true; -#ifndef HB_NO_OT_FONT_CFF - if (ot_face->cff1->get_glyph_from_name (name, len, glyph)) return true; -#endif - return false; -} -#endif - -static hb_bool_t -hb_ot_get_font_h_extents (hb_font_t *font, - void *font_data HB_UNUSED, - hb_font_extents_t *metrics, - void *user_data HB_UNUSED) -{ - return _hb_ot_metrics_get_position_common (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER, &metrics->ascender) && - _hb_ot_metrics_get_position_common (font, HB_OT_METRICS_TAG_HORIZONTAL_DESCENDER, &metrics->descender) && - _hb_ot_metrics_get_position_common (font, HB_OT_METRICS_TAG_HORIZONTAL_LINE_GAP, &metrics->line_gap); -} - -static hb_bool_t -hb_ot_get_font_v_extents (hb_font_t *font, - void *font_data HB_UNUSED, - hb_font_extents_t *metrics, - void *user_data HB_UNUSED) -{ - return _hb_ot_metrics_get_position_common (font, HB_OT_METRICS_TAG_VERTICAL_ASCENDER, &metrics->ascender) && - _hb_ot_metrics_get_position_common (font, HB_OT_METRICS_TAG_VERTICAL_DESCENDER, &metrics->descender) && - _hb_ot_metrics_get_position_common (font, HB_OT_METRICS_TAG_VERTICAL_LINE_GAP, &metrics->line_gap); -} - -#if HB_USE_ATEXIT -static void free_static_ot_funcs (); -#endif - -static struct hb_ot_font_funcs_lazy_loader_t : hb_font_funcs_lazy_loader_t<hb_ot_font_funcs_lazy_loader_t> -{ - static hb_font_funcs_t *create () - { - hb_font_funcs_t *funcs = hb_font_funcs_create (); - - hb_font_funcs_set_font_h_extents_func (funcs, hb_ot_get_font_h_extents, nullptr, nullptr); - hb_font_funcs_set_font_v_extents_func (funcs, hb_ot_get_font_v_extents, nullptr, nullptr); - hb_font_funcs_set_nominal_glyph_func (funcs, hb_ot_get_nominal_glyph, nullptr, nullptr); - hb_font_funcs_set_nominal_glyphs_func (funcs, hb_ot_get_nominal_glyphs, nullptr, nullptr); - hb_font_funcs_set_variation_glyph_func (funcs, hb_ot_get_variation_glyph, nullptr, nullptr); - hb_font_funcs_set_glyph_h_advances_func (funcs, hb_ot_get_glyph_h_advances, nullptr, nullptr); - hb_font_funcs_set_glyph_v_advances_func (funcs, hb_ot_get_glyph_v_advances, nullptr, nullptr); - //hb_font_funcs_set_glyph_h_origin_func (funcs, hb_ot_get_glyph_h_origin, nullptr, nullptr); - hb_font_funcs_set_glyph_v_origin_func (funcs, hb_ot_get_glyph_v_origin, nullptr, nullptr); - hb_font_funcs_set_glyph_extents_func (funcs, hb_ot_get_glyph_extents, nullptr, nullptr); - //hb_font_funcs_set_glyph_contour_point_func (funcs, hb_ot_get_glyph_contour_point, nullptr, nullptr); -#ifndef HB_NO_OT_FONT_GLYPH_NAMES - hb_font_funcs_set_glyph_name_func (funcs, hb_ot_get_glyph_name, nullptr, nullptr); - hb_font_funcs_set_glyph_from_name_func (funcs, hb_ot_get_glyph_from_name, nullptr, nullptr); -#endif - - hb_font_funcs_make_immutable (funcs); - -#if HB_USE_ATEXIT - atexit (free_static_ot_funcs); -#endif - - return funcs; - } -} static_ot_funcs; - -#if HB_USE_ATEXIT -static -void free_static_ot_funcs () -{ - static_ot_funcs.free_instance (); -} -#endif - -static hb_font_funcs_t * -_hb_ot_get_font_funcs () -{ - return static_ot_funcs.get_unconst (); -} - - -/** - * hb_ot_font_set_funcs: - * @font: #hb_font_t to work upon - * - * Sets the font functions to use when working with @font. - * - * Since: 0.9.28 - **/ -void -hb_ot_font_set_funcs (hb_font_t *font) -{ - hb_font_set_funcs (font, - _hb_ot_get_font_funcs (), - &font->face->table, - nullptr); -} - -#ifndef HB_NO_VAR -int -_glyf_get_side_bearing_var (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical) -{ - return font->face->table.glyf->get_side_bearing_var (font, glyph, is_vertical); -} - -unsigned -_glyf_get_advance_var (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical) -{ - return font->face->table.glyf->get_advance_var (font, glyph, is_vertical); -} -#endif - - -#endif |