kc3-lang/harfbuzz/test/api/test-ot-color.c

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• Hash : 5b9c2340
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  Date : 2018-02-27T22:56:17
  

  [CPAL] Refactor and address the reviews
  

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• test/api/test-ot-color.c

• /*
   * Copyright © 2016  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): Sascha Brawer
   */
  
  #include "hb-test.h"
  
  #include <hb-ot.h>
  #include <stdlib.h>
  #include <stdio.h>
  
  /* Unit tests for hb-ot-color.h */
  
  /* Test font with the following CPAL v0 table, as TTX and manual disassembly:
  
    <CPAL>
      <version value="0"/>
      <numPaletteEntries value="2"/>
      <palette index="0">
        <color index="0" value="#000000FF"/>
        <color index="1" value="#66CCFFFF"/>
      </palette>
      <palette index="1">
        <color index="0" value="#000000FF"/>
        <color index="1" value="#800000FF"/>
      </palette>
    </CPAL>
  
     0 | 0000                           # version=0
     2 | 0002                           # numPaletteEntries=2
     4 | 0002                           # numPalettes=2
     6 | 0004                           # numColorRecords=4
     8 | 00000010                       # offsetToFirstColorRecord=16
    12 | 0000 0002                      # colorRecordIndex=[0, 2]
    16 | 000000ff ffcc66ff              # colorRecord #0, #1 (BGRA)
    24 | 000000ff 000080ff              # colorRecord #2, #3 (BGRA)
   */
  static hb_face_t *cpal_v0 = NULL;
  
  /* Test font with the following CPAL v1 table, as TTX and manual disassembly:
  
    <CPAL>
      <version value="1"/>
      <numPaletteEntries value="2"/>
      <palette index="0" label="257" type="2">
        <color index="0" value="#000000FF"/>
        <color index="1" value="#66CCFFFF"/>
      </palette>
      <palette index="1" label="65535" type="1">
        <color index="0" value="#000000FF"/>
        <color index="1" value="#FFCC66FF"/>
      </palette>
      <palette index="2" label="258" type="0">
        <color index="0" value="#000000FF"/>
        <color index="1" value="#800000FF"/>
      </palette>
      <paletteEntryLabels>
        <label index="0" value="65535"/>
        <label index="1" value="256"/>
      </paletteEntryLabels>
    </CPAL>
  
     0 | 0001                           # version=1
     2 | 0002                           # numPaletteEntries=2
     4 | 0003                           # numPalettes=3
     6 | 0006                           # numColorRecords=6
     8 | 0000001e                       # offsetToFirstColorRecord=30
    12 | 0000 0002 0004                 # colorRecordIndex=[0, 2, 4]
    18 | 00000036                       # offsetToPaletteTypeArray=54
    22 | 00000042                       # offsetToPaletteLabelArray=66
    26 | 00000048                       # offsetToPaletteEntryLabelArray=72
    30 | 000000ff ffcc66ff 000000ff     # colorRecord #0, #1, #2 (BGRA)
    42 | 66ccffff 000000ff 000080ff     # colorRecord #3, #4, #5 (BGRA)
    54 | 00000002 00000001 00000000     # paletteFlags=[2, 1, 0]
    66 | 0101 ffff 0102                 # paletteName=[257, 0xffff, 258]
    72 | ffff 0100                      # paletteEntryLabel=[0xffff, 256]
  */
  static hb_face_t *cpal_v1 = NULL;
  
  
  #define assert_color_rgba(colors, i, r, g, b, a) G_STMT_START {	\
    const hb_ot_color_t *_colors = (colors); \
    const size_t _i = (i); \
    const uint8_t red = (r), green = (g), blue = (b), alpha = (a); \
    if (_colors[_i].red != red) { \
      g_assertion_message_cmpnum (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
  				"colors[" #i "].red", _colors[_i].red, "==", red, 'x'); \
    } \
    if (_colors[_i].green != green) { \
      g_assertion_message_cmpnum (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
  				"colors[" #i "].green", _colors[_i].green, "==", green, 'x'); \
    } \
    if (_colors[_i].blue != blue) { \
      g_assertion_message_cmpnum (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
  				"colors[" #i "].blue", colors[i].blue, "==", blue, 'x'); \
    } \
    if (_colors[_i].alpha != alpha) { \
      g_assertion_message_cmpnum (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
  				"colors[" #i "].alpha", _colors[_i].alpha, "==", alpha, 'x'); \
    } \
  } G_STMT_END
  
  
  #if 0
  static void
  test_hb_ot_color_get_palette_count (void)
  {
    g_assert_cmpint (hb_ot_color_get_palette_count (hb_face_get_empty()), ==, 0);
    g_assert_cmpint (hb_ot_color_get_palette_count (cpal_v0), ==, 2);
    g_assert_cmpint (hb_ot_color_get_palette_count (cpal_v1), ==, 3);
  }
  
  
  static void
  test_hb_ot_color_get_palette_name_id_empty (void)
  {
    /* numPalettes=0, so all calls are for out-of-bounds palette indices */
    g_assert_cmpint (hb_ot_color_get_palette_name_id (hb_face_get_empty(), 0), ==, 0xffff);
    g_assert_cmpint (hb_ot_color_get_palette_name_id (hb_face_get_empty(), 1), ==, 0xffff);
  }
  
  
  static void
  test_hb_ot_color_get_palette_name_id_v0 (void)
  {
    g_assert_cmpint (hb_ot_color_get_palette_name_id (cpal_v0, 0), ==, 0xffff);
    g_assert_cmpint (hb_ot_color_get_palette_name_id (cpal_v0, 1), ==, 0xffff);
  
    /* numPalettes=2, so palette #2 is out of bounds */
    g_assert_cmpint (hb_ot_color_get_palette_name_id (cpal_v0, 2), ==, 0xffff);
  }
  
  
  static void
  test_hb_ot_color_get_palette_name_id_v1 (void)
  {
    g_assert_cmpint (hb_ot_color_get_palette_name_id (cpal_v1, 0), ==, 257);
    g_assert_cmpint (hb_ot_color_get_palette_name_id (cpal_v1, 1), ==, 0xffff);
    g_assert_cmpint (hb_ot_color_get_palette_name_id (cpal_v1, 2), ==, 258);
  
    /* numPalettes=3, so palette #3 is out of bounds */
    g_assert_cmpint (hb_ot_color_get_palette_name_id (cpal_v1, 3), ==, 0xffff);
  }
  
  static void
  test_hb_ot_color_get_palette_flags_empty (void)
  {
    /* numPalettes=0, so all calls are for out-of-bounds palette indices */
    g_assert_cmpint (hb_ot_color_get_palette_flags (hb_face_get_empty(), 0), ==, HB_OT_COLOR_PALETTE_FLAG_DEFAULT);
    g_assert_cmpint (hb_ot_color_get_palette_flags (hb_face_get_empty(), 1), ==, HB_OT_COLOR_PALETTE_FLAG_DEFAULT);
  }
  
  
  static void
  test_hb_ot_color_get_palette_flags_v0 (void)
  {
    g_assert_cmpint (hb_ot_color_get_palette_flags (cpal_v0, 0), ==, HB_OT_COLOR_PALETTE_FLAG_DEFAULT);
    g_assert_cmpint (hb_ot_color_get_palette_flags (cpal_v0, 1), ==, HB_OT_COLOR_PALETTE_FLAG_DEFAULT);
  
    /* numPalettes=2, so palette #2 is out of bounds */
    g_assert_cmpint (hb_ot_color_get_palette_flags (cpal_v0, 2), ==, HB_OT_COLOR_PALETTE_FLAG_DEFAULT);
  }
  
  
  static void
  test_hb_ot_color_get_palette_flags_v1 (void)
  {
    g_assert_cmpint (hb_ot_color_get_palette_flags (cpal_v1, 0), ==, HB_OT_COLOR_PALETTE_FLAG_FOR_DARK_BACKGROUND);
    g_assert_cmpint (hb_ot_color_get_palette_flags (cpal_v1, 1), ==, HB_OT_COLOR_PALETTE_FLAG_FOR_LIGHT_BACKGROUND);
    g_assert_cmpint (hb_ot_color_get_palette_flags (cpal_v0, 2), ==, HB_OT_COLOR_PALETTE_FLAG_DEFAULT);
  
    /* numPalettes=3, so palette #3 is out of bounds */
    g_assert_cmpint (hb_ot_color_get_palette_flags (cpal_v0, 3), ==, HB_OT_COLOR_PALETTE_FLAG_DEFAULT);
  }
  
  
  static void
  test_hb_ot_color_get_palette_colors_empty (void)
  {
    hb_face_t *empty = hb_face_get_empty ();
    g_assert_cmpint (hb_ot_color_get_palette_colors (empty, 0, 0, NULL, NULL), ==, 0);
  }
  
  
  static void
  test_hb_ot_color_get_palette_colors_v0 (void)
  {
    unsigned int num_colors = hb_ot_color_get_palette_colors (cpal_v0, 0, 0, NULL, NULL);
    hb_ot_color_t *colors = (hb_ot_color_t*) alloca (num_colors * sizeof (hb_ot_color_t));
    size_t colors_size = num_colors * sizeof(*colors);
    g_assert_cmpint (num_colors, ==, 2);
  
    /* Palette #0, start_index=0 */
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v0, 0, 0, &num_colors, colors), ==, 2);
    g_assert_cmpint (num_colors, ==, 2);
    assert_color_rgba (colors, 0, 0x00, 0x00, 0x00, 0xff);
    assert_color_rgba (colors, 1, 0x66, 0xcc, 0xff, 0xff);
  
    /* Palette #1, start_index=0 */
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v0, 1, 0, &num_colors, colors), ==, 2);
    g_assert_cmpint (num_colors, ==, 2);
    assert_color_rgba (colors, 0, 0x00, 0x00, 0x00, 0xff);
    assert_color_rgba (colors, 1, 0x80, 0x00, 0x00, 0xff);
  
    /* Palette #2 (there are only #0 and #1 in the font, so this is out of bounds) */
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v0, 2, 0, &num_colors, colors), ==, 0);
  
    /* Palette #0, start_index=1 */
    memset(colors, 0x33, colors_size);
    num_colors = 2;
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v0, 0, 1, &num_colors, colors), ==, 2);
    g_assert_cmpint (num_colors, ==, 1);
    assert_color_rgba (colors, 0, 0x66, 0xcc, 0xff, 0xff);
    assert_color_rgba (colors, 1, 0x33, 0x33, 0x33, 0x33);  /* untouched */
  
    /* Palette #0, start_index=0, pretend that we have only allocated space for 1 color */
    memset(colors, 0x44, colors_size);
    num_colors = 1;
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v0, 0, 0, &num_colors, colors), ==, 2);
    g_assert_cmpint (num_colors, ==, 1);
    assert_color_rgba (colors, 0, 0x00, 0x00, 0x00, 0xff);
    assert_color_rgba (colors, 1, 0x44, 0x44, 0x44, 0x44);  /* untouched */
  
    /* start_index > numPaletteEntries */
    memset(colors, 0x44, colors_size);
    num_colors = 2;
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v0, 0, 9876, &num_colors, colors), ==, 2);
    g_assert_cmpint (num_colors, ==, 0);
    assert_color_rgba (colors, 0, 0x44, 0x44, 0x44, 0x44);  /* untouched */
    assert_color_rgba (colors, 1, 0x44, 0x44, 0x44, 0x44);  /* untouched */
  }
  
  
  static void
  test_hb_ot_color_get_palette_colors_v1 (void)
  {
    hb_ot_color_t colors[3];
    unsigned int num_colors = hb_ot_color_get_palette_colors (cpal_v1, 0, 0, NULL, NULL);
    size_t colors_size = 3 * sizeof(*colors);
    g_assert_cmpint (num_colors, ==, 2);
  
    /* Palette #0, start_index=0 */
    memset(colors, 0x77, colors_size);
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v1, 0, 0, &num_colors, colors), ==, 2);
    g_assert_cmpint (num_colors, ==, 2);
    assert_color_rgba (colors, 0, 0x00, 0x00, 0x00, 0xff);
    assert_color_rgba (colors, 1, 0x66, 0xcc, 0xff, 0xff);
    assert_color_rgba (colors, 2, 0x77, 0x77, 0x77, 0x77);  /* untouched */
  
    /* Palette #1, start_index=0 */
    memset(colors, 0x77, colors_size);
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v1, 1, 0, &num_colors, colors), ==, 2);
    g_assert_cmpint (num_colors, ==, 2);
    assert_color_rgba (colors, 0, 0x00, 0x00, 0x00, 0xff);
    assert_color_rgba (colors, 1, 0xff, 0xcc, 0x66, 0xff);
    assert_color_rgba (colors, 2, 0x77, 0x77, 0x77, 0x77);  /* untouched */
  
    /* Palette #2, start_index=0 */
    memset(colors, 0x77, colors_size);
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v1, 2, 0, &num_colors, colors), ==, 2);
    g_assert_cmpint (num_colors, ==, 2);
    assert_color_rgba (colors, 0, 0x00, 0x00, 0x00, 0xff);
    assert_color_rgba (colors, 1, 0x80, 0x00, 0x00, 0xff);
    assert_color_rgba (colors, 2, 0x77, 0x77, 0x77, 0x77);  /* untouched */
  
    /* Palette #3 (out of bounds), start_index=0 */
    memset(colors, 0x77, colors_size);
    g_assert_cmpint (hb_ot_color_get_palette_colors (cpal_v1, 3, 0, &num_colors, colors), ==, 0);
    g_assert_cmpint (num_colors, ==, 0);
    assert_color_rgba (colors, 0, 0x77, 0x77, 0x77, 0x77);  /* untouched */
    assert_color_rgba (colors, 1, 0x77, 0x77, 0x77, 0x77);  /* untouched */
    assert_color_rgba (colors, 2, 0x77, 0x77, 0x77, 0x77);  /* untouched */
  }
  #endif
  
  int
  main (int argc, char **argv)
  {
    int status = 0;
  
    hb_test_init (&argc, &argv);
    // cpal_v0 = hb_test_load_face ("../shaping/data/in-house/fonts/e90374e5e439e00725b4fe7a8d73db57c5a97f82.ttf");
    // cpal_v1 = hb_test_load_face ("../shaping/data/in-house/fonts/319f5d7ebffbefc5c5e6569f8cea73444d7a7268.ttf");
    // hb_test_add (test_hb_ot_color_get_palette_count);
    // hb_test_add (test_hb_ot_color_get_palette_name_id_empty);
    // hb_test_add (test_hb_ot_color_get_palette_name_id_v0);
    // hb_test_add (test_hb_ot_color_get_palette_name_id_v1);
    // hb_test_add (test_hb_ot_color_get_palette_flags_empty);
    // hb_test_add (test_hb_ot_color_get_palette_flags_v0);
    // hb_test_add (test_hb_ot_color_get_palette_flags_v1);
    // hb_test_add (test_hb_ot_color_get_palette_colors_empty);
    // hb_test_add (test_hb_ot_color_get_palette_colors_v0);
    // hb_test_add (test_hb_ot_color_get_palette_colors_v1);
    status = hb_test_run();
    hb_face_destroy (cpal_v0);
    hb_face_destroy (cpal_v1);
    return status;
  }
  

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