1  /*
       2   * Copyright © 2022  Behdad Esfahbod
       3   *
       4   *  This is part of HarfBuzz, a text shaping library.
       5   *
       6   * Permission is hereby granted, without written agreement and without
       7   * license or royalty fees, to use, copy, modify, and distribute this
       8   * software and its documentation for any purpose, provided that the
       9   * above copyright notice and the following two paragraphs appear in
      10   * all copies of this software.
      11   *
      12   * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
      13   * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
      14   * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
      15   * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
      16   * DAMAGE.
      17   *
      18   * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
      19   * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
      20   * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
      21   * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
      22   * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
      23   */
      24  
      25  #include "hb-test.h"
      26  
      27  #include <hb.h>
      28  
      29  static void
      30  test_maxp_and_hmtx (void)
      31  {
      32    hb_face_t *face;
      33    hb_font_t *font;
      34  
      35    const char maxp_data[] = "\x00\x00\x50\x00" // version
      36  			   "\x00\x05" // numGlyphs
      37  			   ;
      38    const char loca_data[18] = "";
      39    const char hhea_data[36] =
      40      "\x00\x01\x00\x00" /* FixedVersion<>version;	 * 0x00010000u for version 1.0. */
      41      "\x02\x00" /* FWORD		ascender;	 * Typographic ascent. */
      42      "\x00\x10" /* FWORD		descender;	 * Typographic descent. */
      43      "\x00\x00" /* FWORD		lineGap;	 * Typographic line gap. */
      44      "\x00\x00" /* UFWORD	advanceMax;	 * Maximum advance width/height value in metrics table. */
      45      "\x00\x00" /* FWORD		minLeadingBearing;  * Minimum left/top sidebearing value in metrics table. */
      46      "\x00\x00" /* FWORD		minTrailingBearing;  * Minimum right/bottom sidebearing value; */
      47      "\x01\x00" /* FWORD		maxExtent;	 * horizontal: Max(lsb + (xMax - xMin)), */
      48      "\x00\x00" /* HBINT16	caretSlopeRise;	 * Used to calculate the slope of the,*/
      49      "\x00\x00" /* HBINT16	caretSlopeRun;	 * 0 for vertical caret, 1 for horizontal. */
      50      "\x00\x00" /* HBINT16	caretOffset;	 * The amount by which a slanted */
      51      "\x00\x00" /* HBINT16	reserved1;	 * Set to 0. */
      52      "\x00\x00" /* HBINT16	reserved2;	 * Set to 0. */
      53      "\x00\x00" /* HBINT16	reserved3;	 * Set to 0. */
      54      "\x00\x00" /* HBINT16	reserved4;	 * Set to 0. */
      55      "\x00\x00" /* HBINT16	metricDataFormat; * 0 for current format. */
      56      "\x00\x02" /* HBUINT16	numberOfLongMetrics;  * Number of LongMetric entries in metric table. */
      57      ;
      58    const char hmtx_data[18] =
      59      "\x00\x01\x00\x02"	/* glyph 0 advance lsb */
      60      "\x00\x03\x00\x04"	/* glyph 1 advance lsb */
      61      "\x00\x05"		/* glyph 2         lsb */
      62      "\x00\x06"		/* glyph 3         lsb */
      63      "\x00\x07"		/* glyph 4         lsb */
      64      "\x00\x08"		/* glyph 5 advance */
      65      "\x00\x09"		/* glyph 6 advance */
      66      ;
      67  
      68    face = hb_face_builder_create ();
      69    HB_FACE_ADD_TABLE (face, "maxp", maxp_data);
      70    HB_FACE_ADD_TABLE (face, "loca", loca_data);
      71    HB_FACE_ADD_TABLE (face, "hhea", hhea_data);
      72    HB_FACE_ADD_TABLE (face, "hmtx", hmtx_data);
      73    font = hb_font_create (face);
      74    hb_face_destroy (face);
      75    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 0), ==, 1);
      76    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 1), ==, 3);
      77    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 2), ==, 3);
      78    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 3), ==, 3);
      79    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 4), ==, 3);
      80  #ifndef HB_NO_BEYOND_64K
      81    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 5), ==, 8);
      82    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 6), ==, 9);
      83    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 7), ==, 9);
      84  #endif
      85    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 8), ==, 0);
      86    g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 9), ==, 0);
      87    g_assert_cmpuint (hb_font_get_glyph_h_advance (font,10), ==, 0);
      88    g_assert_cmpuint (hb_font_get_glyph_h_advance (font,11), ==, 0);
      89    hb_font_destroy (font);
      90  }
      91  
      92  
      93  int
      94  main (int argc, char **argv)
      95  {
      96    hb_test_init (&argc, &argv);
      97  
      98    hb_test_add (test_maxp_and_hmtx);
      99  
     100    return hb_test_run();
     101  }