kc3-lang/harfbuzz/test/api/test-directwrite.cc

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• Hash : 8d62ad3b
  Author :
  Date : 2025-03-23T15:27:36
  

  [directwrite] Don’t release IDWriteFace pass to hb_directwrite_font_create
  
  That was a leftover from previous code and is incorrect now as we would
  be double releasing it.
  

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• test/api/test-directwrite.cc

• /*
   * Copyright © 2022 Red Hat, 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.
   *
   * Author: Matthias Clasen
   */
  
  
  #include "hb-test.h"
  
  #include "hb-directwrite.h"
  
  /* Declare object creator for dynamic support of DWRITE */
  typedef HRESULT (WINAPI *t_DWriteCreateFactory)(
    DWRITE_FACTORY_TYPE factoryType,
    REFIID              iid,
    IUnknown            **factory
  );
  
  IDWriteFontFace *
  get_dwfontface (const char *font_path)
  {
    auto *face = hb_test_open_font_file (font_path);
  
    auto *dw_font_face = hb_directwrite_face_get_dw_font_face (face);
  
    dw_font_face->AddRef ();
  
    hb_face_destroy (face);
  
    return dw_font_face;
  }
  
  static void
  test_native_directwrite_basic (void)
  {
    IDWriteFontFace *dwfontface;
    hb_font_t *font;
    IDWriteFontFace *dwfontface2;
  
    dwfontface = get_dwfontface ("fonts/Roboto-Regular.abc.ttf");
    g_assert_nonnull (dwfontface);
  
    font = hb_directwrite_font_create (dwfontface);
  
    dwfontface2 = hb_directwrite_font_get_dw_font_face (font);
  
    g_assert_true (dwfontface2 == dwfontface);
  
    hb_font_destroy (font);
  
    dwfontface->Release ();
  }
  
  
  static void
  test_native_directwrite_variations (void)
  {
    IDWriteFontFace *dw_face;
    IDWriteFontResource *dw_fontresource;
    IDWriteFontFace5 *dw_face5, *dw_facevariations;
    DWRITE_FONT_AXIS_VALUE dw_axisvalues[5];
    hb_font_t *font;
    const float *coords;
    unsigned int length;
  
    dw_face = get_dwfontface ("fonts/AdobeVFPrototype.abc.otf");
    g_assert_nonnull (dw_face);
  
    dw_face->QueryInterface (__uuidof(IDWriteFontFace5), (void **)&dw_face5);
    dw_face->Release ();
    g_assert_nonnull (dw_face5);
  
    // Check that wght axis originally set on the face is different from what we will set.
    if (!dw_face5->HasVariations ())
    {
      g_test_skip ("Font has no variations. Possiply using Wine’s DWrite.dll");
      return;
    }
    g_assert_cmpuint (dw_face5->GetFontAxisValueCount (), ==, 5);
    dw_face5->GetFontAxisValues (dw_axisvalues, 5);
    g_assert_cmpuint (dw_axisvalues[0].axisTag, ==, DWRITE_FONT_AXIS_TAG_WEIGHT);
    g_assert_cmpfloat (dw_axisvalues[0].value, !=, 900.0f);
  
    dw_face5->GetFontResource (&dw_fontresource);
    dw_face5->Release();
    g_assert_nonnull (dw_fontresource);
  
    // Set wght axis to 900.0
    dw_axisvalues[0].value = 900.0f;
    dw_fontresource->CreateFontFace (DWRITE_FONT_SIMULATIONS_NONE, dw_axisvalues, 5, &dw_facevariations);
    dw_fontresource->Release ();
    g_assert_nonnull (dw_facevariations);
  
    // Check that wght axis is now set to 900.0
    g_assert_cmpuint (dw_facevariations->GetFontAxisValueCount (), ==, 5);
    dw_facevariations->GetFontAxisValues (dw_axisvalues, 5);
    g_assert_cmpuint (dw_axisvalues[0].axisTag, ==, DWRITE_FONT_AXIS_TAG_WEIGHT);
    g_assert_cmpfloat (dw_axisvalues[0].value, ==, 900.0f);
  
    font = hb_directwrite_font_create (dw_facevariations);
  
    // Check that wght axis is also set to 900.0 on the hb_font_t
    coords = hb_font_get_var_coords_design(font, &length);
    g_assert_cmpuint (length, ==, 2);
    g_assert_cmpfloat (coords[0], ==, 900.0f);
  
    hb_font_destroy (font);
  
    dw_facevariations->Release ();
  }
  
  
  int
  main (int argc, char **argv)
  {
    hb_test_init (&argc, &argv);
  
    hb_test_add (test_native_directwrite_basic);
    hb_test_add (test_native_directwrite_variations);
  
    return hb_test_run ();
  }
  

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