| /* |
| * Copyright © 2020 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. |
| * |
| */ |
| #include "hb-ot-var-cvar-table.hh" |
| |
| // cvar table data from Multi-ABC.ttf |
| const char cvar_data[] = "\x0\x1\x0\x0\x0\x2\x0\x14\x0\x51\xa0\x0\xc0\x0\x0\x54\xa0\x0\x40\x0\x2a\x29\x17\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\xd\xff\x0\xfd\x1\x0\xff\x0\xfd\x1\x0\xdb\xdb\xe6\xe6\x82\x0\xfd\x84\x6\xfd\x0\x2\xe3\xe3\xec\xec\x82\x4\x1\xe3\xe3\xec\xec\x82\x0\x1\x2a\x29\x17\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\xd\x1\x0\x5\xfd\x0\x1\x0\x5\xfd\x0\x61\x61\x44\x44\x82\x0\x5\x81\x9\x1\xff\x1\x7\xff\xfb\x49\x49\x35\x35\x82\x4\xff\x49\x49\x35\x35\x82\x0\xff"; |
| |
| static void |
| test_decompile_cvar () |
| { |
| const OT::cvar* cvar_table = reinterpret_cast<const OT::cvar*> (cvar_data); |
| unsigned point_count = 65; |
| unsigned axis_count = 1; |
| |
| hb_tag_t axis_tag = HB_TAG ('w', 'g', 'h', 't'); |
| hb_map_t axis_idx_tag_map; |
| axis_idx_tag_map.set (0, axis_tag); |
| |
| OT::TupleVariationData::tuple_variations_t tuple_variations; |
| hb_vector_t<unsigned> shared_indices; |
| OT::TupleVariationData::tuple_iterator_t iterator; |
| |
| const OT::TupleVariationData* tuple_var_data = reinterpret_cast<const OT::TupleVariationData*> (cvar_data + 4); |
| |
| unsigned len = sizeof (cvar_data); |
| hb_bytes_t var_data_bytes{cvar_data+4, len - 4}; |
| bool result = OT::TupleVariationData::get_tuple_iterator (var_data_bytes, axis_count, cvar_table, |
| shared_indices, &iterator); |
| assert (result); |
| |
| result = tuple_var_data->decompile_tuple_variations (point_count, false, iterator, &axis_idx_tag_map, |
| shared_indices, hb_array<const OT::F2DOT14> (), |
| tuple_variations); |
| |
| assert (result); |
| assert (tuple_variations.tuple_vars.length == 2); |
| for (unsigned i = 0; i < 2; i++) |
| { |
| assert (tuple_variations.tuple_vars[i].axis_tuples.get_population () == 1); |
| assert (!tuple_variations.tuple_vars[i].deltas_y); |
| assert (tuple_variations.tuple_vars[i].indices.length == 65); |
| assert (tuple_variations.tuple_vars[i].indices.length == tuple_variations.tuple_vars[i].deltas_x.length); |
| } |
| assert (tuple_variations.tuple_vars[0].axis_tuples.get (axis_tag) == Triple (-1.f, -1.f, 0.f)); |
| assert (tuple_variations.tuple_vars[1].axis_tuples.get (axis_tag) == Triple (0.f, 1.f, 1.f)); |
| |
| hb_vector_t<float> deltas_1 {0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, -1.f, 0.f, -3.f, 1.f, 0.f, -1.f, 0.f, -3.f, 1.f, 0.f, -37.f, -37.f, -26.f, -26.f, 0.f, 0.f, 0.f, -3.f, 0.f, 0.f, 0.f, 0.f, 0.f, -3.f, 0.f, 2.f, -29.f, -29.f, -20.f, -20.f, 0.f, 0.f, 0.f, 1.f, -29.f, -29.f, -20.f, -20.f, 0.f, 0.f, 0.f, 1.f}; |
| for (unsigned i = 0; i < 65; i++) |
| { |
| if (i < 23) |
| assert (tuple_variations.tuple_vars[0].indices[i] == 0); |
| else |
| { |
| assert (tuple_variations.tuple_vars[0].indices[i] == 1); |
| assert (tuple_variations.tuple_vars[0].deltas_x[i] == deltas_1[i]); |
| } |
| } |
| |
| hb_vector_t<float> deltas_2 {0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 1.f, 0.f, 5.f, -3.f, 0.f, 1.f, 0.f, 5.f, -3.f, 0.f, 97.f, 97.f, 68.f, 68.f, 0.f, 0.f, 0.f, 5.f, 0.f, 0.f, 1.f, -1.f, 1.f, 7.f, -1.f, -5.f, 73.f, 73.f, 53.f, 53.f, 0.f, 0.f, 0.f, -1.f, 73.f, 73.f, 53.f, 53.f, 0.f, 0.f, 0.f, -1.f}; |
| for (unsigned i = 0 ; i < 65; i++) |
| { |
| if (i < 23) |
| assert (tuple_variations.tuple_vars[1].indices[i] == 0); |
| else |
| { |
| assert (tuple_variations.tuple_vars[1].indices[i] == 1); |
| assert (tuple_variations.tuple_vars[1].deltas_x[i] == deltas_2[i]); |
| } |
| } |
| |
| /* partial instancing wght=300:800 */ |
| hb_hashmap_t<hb_tag_t, Triple> normalized_axes_location; |
| normalized_axes_location.set (axis_tag, Triple (-0.512817f, 0.f, 0.700012f)); |
| |
| hb_hashmap_t<hb_tag_t, TripleDistances> axes_triple_distances; |
| axes_triple_distances.set (axis_tag, TripleDistances (1.f, 1.f)); |
| |
| tuple_variations.instantiate (normalized_axes_location, axes_triple_distances); |
| |
| assert (tuple_variations.tuple_vars[0].indices.length == 65); |
| assert (tuple_variations.tuple_vars[1].indices.length == 65); |
| assert (!tuple_variations.tuple_vars[0].deltas_y); |
| assert (!tuple_variations.tuple_vars[1].deltas_y); |
| assert (tuple_variations.tuple_vars[0].axis_tuples.get (axis_tag) == Triple (-1.f, -1.f, 0.f)); |
| assert (tuple_variations.tuple_vars[1].axis_tuples.get (axis_tag) == Triple (0.f, 1.f, 1.f)); |
| |
| hb_vector_t<float> rounded_deltas_1 {0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, -1, 0.f, -2, 1, 0.f, -1, 0.f, -2, 1, 0.f, -19, -19, -13, -13, 0.f, 0.f, 0.f, -2, 0.f, 0.f, 0.f, 0.f, 0.f, -2, 0.f, 1, -15, -15, -10.f, -10.f, 0.f, 0.f, 0.f, 1, -15, -15, -10.f, -10.f, 0.f, 0.f, 0.f, 1}; |
| |
| hb_vector_t<float> rounded_deltas_2 {0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 1, 0.f, 4, -2, 0.f, 1, 0.f, 4, -2, 0.f, 68, 68, 48, 48, 0.f, 0.f, 0.f, 4, 0.f, 0.f, 1, -1, 1, 5, -1, -4, 51, 51, 37, 37, 0.f, 0.f, 0.f, -1, 51, 51, 37, 37, 0.f, 0.f, 0.f, -1}; |
| |
| for (unsigned i = 0; i < 65; i++) |
| { |
| if (i < 23) |
| { |
| assert (tuple_variations.tuple_vars[0].indices[i] == 0); |
| assert (tuple_variations.tuple_vars[1].indices[i] == 0); |
| } |
| else |
| { |
| assert (tuple_variations.tuple_vars[0].indices[i] == 1); |
| assert (tuple_variations.tuple_vars[1].indices[i] == 1); |
| assert (roundf (tuple_variations.tuple_vars[0].deltas_x[i]) == rounded_deltas_1[i]); |
| assert (roundf (tuple_variations.tuple_vars[1].deltas_x[i]) == rounded_deltas_2[i]); |
| } |
| } |
| |
| hb_map_t axes_index_map; |
| axes_index_map.set (0, 0); |
| bool res = tuple_variations.compile_bytes (axes_index_map, axis_idx_tag_map, false); |
| assert (res); |
| assert (tuple_variations.tuple_vars[0].compiled_tuple_header.length == 6); |
| const char tuple_var_header_1[] = "\x0\x51\xa0\x0\xc0\x0"; |
| for (unsigned i = 0; i < 6; i++) |
| assert(tuple_variations.tuple_vars[0].compiled_tuple_header.arrayZ[i] == tuple_var_header_1[i]); |
| |
| assert (tuple_variations.tuple_vars[1].compiled_tuple_header.length == 6); |
| const char tuple_var_header_2[] = "\x0\x54\xa0\x0\x40\x0"; |
| for (unsigned i = 0; i < 6; i++) |
| assert(tuple_variations.tuple_vars[1].compiled_tuple_header.arrayZ[i] == tuple_var_header_2[i]); |
| |
| assert (tuple_variations.tuple_vars[0].compiled_deltas.length == 37); |
| assert (tuple_variations.tuple_vars[1].compiled_deltas.length == 40); |
| const char compiled_deltas_1[] = "\x0d\xff\x00\xfe\x01\x00\xff\x00\xfe\x01\x00\xed\xed\xf3\xf3\x82\x00\xfe\x84\x06\xfe\x00\x01\xf1\xf1\xf6\xf6\x82\x04\x01\xf1\xf1\xf6\xf6\x82\x00\x01"; |
| for (unsigned i = 0; i < 37; i++) |
| assert (tuple_variations.tuple_vars[0].compiled_deltas.arrayZ[i] == compiled_deltas_1[i]); |
| |
| const char compiled_deltas_2[] = "\x0d\x01\x00\x04\xfe\x00\x01\x00\x04\xfe\x00\x44\x44\x30\x30\x82\x00\x04\x81\x09\x01\xff\x01\x05\xff\xfc\x33\x33\x25\x25\x82\x04\xff\x33\x33\x25\x25\x82\x00\xff"; |
| for (unsigned i = 0; i < 40; i++) |
| assert (tuple_variations.tuple_vars[1].compiled_deltas.arrayZ[i] == compiled_deltas_2[i]); |
| } |
| |
| int |
| main (int argc, char **argv) |
| { |
| test_decompile_cvar (); |
| } |
