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comparison mupdf-source/thirdparty/harfbuzz/src/hb-gdi.cc @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*
2 * Copyright © 2019 Ebrahim Byagowi
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.hh"
26
27 #ifdef HAVE_GDI
28
29 #include "hb-gdi.h"
30
31
32 /**
33 * SECTION:hb-gdi
34 * @title: hb-gdi
35 * @short_description: GDI integration
36 * @include: hb-gdi.h
37 *
38 * Functions for using HarfBuzz with GDI fonts.
39 **/
40
41 static hb_blob_t *
42 _hb_gdi_reference_table (hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data)
43 {
44 char *buffer = nullptr;
45 DWORD length = 0;
46
47 HDC hdc = GetDC (nullptr);
48 if (unlikely (!SelectObject (hdc, (HFONT) user_data))) goto fail;
49
50 length = GetFontData (hdc, hb_uint32_swap (tag), 0, buffer, length);
51 if (unlikely (length == GDI_ERROR)) goto fail_with_releasedc;
52
53 buffer = (char *) hb_malloc (length);
54 if (unlikely (!buffer)) goto fail_with_releasedc;
55 length = GetFontData (hdc, hb_uint32_swap (tag), 0, buffer, length);
56 if (unlikely (length == GDI_ERROR)) goto fail_with_releasedc_and_free;
57 ReleaseDC (nullptr, hdc);
58
59 return hb_blob_create ((const char *) buffer, length, HB_MEMORY_MODE_WRITABLE, buffer, hb_free);
60
61 fail_with_releasedc_and_free:
62 hb_free (buffer);
63 fail_with_releasedc:
64 ReleaseDC (nullptr, hdc);
65 fail:
66 return hb_blob_get_empty ();
67 }
68
69 /**
70 * hb_gdi_face_create:
71 * @hfont: a HFONT object.
72 *
73 * Constructs a new face object from the specified GDI HFONT.
74 *
75 * Return value: #hb_face_t object corresponding to the given input
76 *
77 * Since: 2.6.0
78 **/
79 hb_face_t *
80 hb_gdi_face_create (HFONT hfont)
81 {
82 return hb_face_create_for_tables (_hb_gdi_reference_table, (void *) hfont, nullptr);
83 }
84
85 #endif