[wasm] Add wasm shaper skeleton
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04a47932a3
commit
425fc7f3ee
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@ -229,6 +229,8 @@ if chafa_dep.found()
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conf.set('HAVE_CHAFA', 1)
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conf.set('HAVE_CHAFA', 1)
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endif
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endif
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conf.set('HAVE_WASM', 1)
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if graphite2_dep.found() or graphite_dep.found()
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if graphite2_dep.found() or graphite_dep.found()
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conf.set('HAVE_GRAPHITE2', 1)
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conf.set('HAVE_GRAPHITE2', 1)
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endif
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endif
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@ -255,6 +255,7 @@ HB_BASE_sources = \
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hb-unicode.hh \
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hb-unicode.hh \
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hb-utf.hh \
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hb-utf.hh \
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hb-vector.hh \
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hb-vector.hh \
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hb-wasm-shape.cc \
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hb-priority-queue.hh \
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hb-priority-queue.hh \
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hb.hh \
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hb.hh \
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$(NULL)
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$(NULL)
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@ -60,3 +60,4 @@
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#include "hb-subset.cc"
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#include "hb-subset.cc"
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#include "hb-ucd.cc"
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#include "hb-ucd.cc"
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#include "hb-unicode.cc"
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#include "hb-unicode.cc"
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#include "hb-wasm-shape.cc"
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@ -58,3 +58,4 @@
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#include "hb-ucd.cc"
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#include "hb-ucd.cc"
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#include "hb-unicode.cc"
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#include "hb-unicode.cc"
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#include "hb-uniscribe.cc"
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#include "hb-uniscribe.cc"
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#include "hb-wasm-shape.cc"
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@ -33,6 +33,11 @@
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/* v--- Add new shapers in the right place here. */
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/* v--- Add new shapers in the right place here. */
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#ifdef HAVE_WASM
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/* Only picks up fonts that have a "Wasm" table. */
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HB_SHAPER_IMPLEMENT (wasm)
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#endif
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#ifdef HAVE_GRAPHITE2
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#ifdef HAVE_GRAPHITE2
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/* Only picks up fonts that have a "Silf" table. */
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/* Only picks up fonts that have a "Silf" table. */
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HB_SHAPER_IMPLEMENT (graphite2)
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HB_SHAPER_IMPLEMENT (graphite2)
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@ -0,0 +1,100 @@
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/*
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* Copyright © 2011 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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* Google Author(s): Behdad Esfahbod
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*/
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#include "hb-shaper-impl.hh"
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#ifdef HAVE_WASM
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/*
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* shaper face data
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*/
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#define HB_WASM_TAG_WASM HB_TAG('W','a','s','m')
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struct hb_wasm_face_data_t {
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hb_blob_t *blob;
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};
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hb_wasm_face_data_t *
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_hb_wasm_shaper_face_data_create (hb_face_t *face)
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{
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hb_blob_t *wasm_blob = hb_face_reference_table (face, HB_WASM_TAG_WASM);
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if (!hb_blob_get_length (wasm_blob))
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{
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hb_blob_destroy (wasm_blob);
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return nullptr;
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}
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hb_wasm_face_data_t *data = (hb_wasm_face_data_t *) hb_calloc (1, sizeof (hb_wasm_face_data_t));
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if (unlikely (!data))
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return nullptr;
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data->blob = wasm_blob;
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return data;
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}
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void
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_hb_wasm_shaper_face_data_destroy (hb_wasm_face_data_t *data)
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{
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hb_blob_destroy (data->blob);
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hb_free (data);
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}
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/*
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* shaper font data
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*/
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struct hb_wasm_font_data_t {};
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hb_wasm_font_data_t *
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_hb_wasm_shaper_font_data_create (hb_font_t *font HB_UNUSED)
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{
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return (hb_wasm_font_data_t *) HB_SHAPER_DATA_SUCCEEDED;
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}
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void
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_hb_wasm_shaper_font_data_destroy (hb_wasm_font_data_t *data HB_UNUSED)
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{
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}
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/*
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* shaper
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*/
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hb_bool_t
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_hb_wasm_shape (hb_shape_plan_t *shape_plan,
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hb_font_t *font,
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hb_buffer_t *buffer,
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const hb_feature_t *features,
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unsigned int num_features)
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{
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return false;
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}
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#endif
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@ -256,6 +256,7 @@ hb_base_sources = files(
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'hb-unicode.hh',
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'hb-unicode.hh',
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'hb-utf.hh',
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'hb-utf.hh',
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'hb-vector.hh',
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'hb-vector.hh',
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'hb-wasm-shape.cc',
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'hb.hh',
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'hb.hh',
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)
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)
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