151 lines
4.3 KiB
C
151 lines
4.3 KiB
C
/*
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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-test.h"
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/* Unit tests for hb-shape.h */
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/*
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* This test provides a framework to test aspects of hb_shape() that are
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* font-independent. Please add tests for any feature that fits that
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* description.
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*/
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/* TODO Make this test data-driven and add some real test data */
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/* TODO Test positions too. And test non-native direction. Test commit 2e18c6dbdfb */
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static const char test_data[] = "test\0data";
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static hb_position_t
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glyph_h_advance_func (hb_font_t *font, void *font_data,
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hb_codepoint_t glyph,
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void *user_data)
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{
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switch (glyph) {
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case 1: return 10;
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case 2: return 6;
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case 3: return 5;
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}
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return 0;
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}
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static hb_bool_t
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glyph_func (hb_font_t *font, void *font_data,
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hb_codepoint_t unicode, hb_codepoint_t variant_selector,
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hb_codepoint_t *glyph,
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void *user_data)
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{
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switch (unicode) {
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case 'T': *glyph = 1; return TRUE;
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case 'e': *glyph = 2; return TRUE;
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case 's': *glyph = 3; return TRUE;
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}
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return FALSE;
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}
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static hb_position_t
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glyph_h_kerning_func (hb_font_t *font, void *font_data,
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hb_codepoint_t left, hb_codepoint_t right,
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void *user_data)
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{
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if (left == 1 && right == 2)
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return -2;
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return 0;
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}
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static const char TesT[] = "TesT";
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static void
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test_shape (void)
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{
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hb_blob_t *blob;
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hb_face_t *face;
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hb_font_funcs_t *ffuncs;
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hb_font_t *font;
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hb_buffer_t *buffer;
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unsigned int len;
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hb_glyph_info_t *glyphs;
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hb_glyph_position_t *positions;
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blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
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face = hb_face_create (blob, 0);
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hb_blob_destroy (blob);
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font = hb_font_create (face);
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hb_face_destroy (face);
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hb_font_set_scale (font, 10, 10);
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ffuncs = hb_font_funcs_create ();
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hb_font_funcs_set_glyph_h_advance_func (ffuncs, glyph_h_advance_func, NULL, NULL);
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hb_font_funcs_set_glyph_func (ffuncs, glyph_func, NULL, NULL);
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hb_font_funcs_set_glyph_h_kerning_func (ffuncs, glyph_h_kerning_func, NULL, NULL);
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hb_font_set_funcs (font, ffuncs, NULL, NULL);
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hb_font_funcs_destroy (ffuncs);
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buffer = hb_buffer_create (0);
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hb_buffer_set_direction (buffer, HB_DIRECTION_LTR);
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hb_buffer_add_utf8 (buffer, TesT, 4, 0, 4);
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hb_shape (font, buffer, NULL, 0);
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len = hb_buffer_get_length (buffer);
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glyphs = hb_buffer_get_glyph_infos (buffer, NULL);
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positions = hb_buffer_get_glyph_positions (buffer, NULL);
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{
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const hb_codepoint_t output_glyphs[] = {1, 2, 3, 1};
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const hb_position_t output_x_advances[] = {9, 5, 5, 10};
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const hb_position_t output_x_offsets[] = {0, -1, 0, 0};
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unsigned int i;
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g_assert_cmpint (len, ==, 4);
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for (i = 0; i < len; i++) {
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g_assert_cmphex (glyphs[i].codepoint, ==, output_glyphs[i]);
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g_assert_cmphex (glyphs[i].cluster, ==, i);
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}
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for (i = 0; i < len; i++) {
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g_assert_cmpint (output_x_advances[i], ==, positions[i].x_advance);
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g_assert_cmpint (output_x_offsets [i], ==, positions[i].x_offset);
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g_assert_cmpint (0, ==, positions[i].y_advance);
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g_assert_cmpint (0, ==, positions[i].y_offset);
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}
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}
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hb_buffer_destroy (buffer);
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hb_font_destroy (font);
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}
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int
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main (int argc, char **argv)
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{
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hb_test_init (&argc, &argv);
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hb_test_add (test_shape);
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return hb_test_run();
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}
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