74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
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/*
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* Copyright © 2019 Ebrahim Byagowi
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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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#include "hb.hh"
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#ifdef HAVE_GDI
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#include "hb-gdi.h"
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static hb_blob_t *
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_hb_gdi_reference_table (hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data)
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{
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char *buffer = nullptr;
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DWORD length = 0;
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HDC hdc = GetDC (nullptr);
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if (unlikely (!SelectObject (hdc, (HFONT) user_data))) goto fail;
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length = GetFontData (hdc, hb_uint32_swap (tag), 0, buffer, length);
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if (unlikely (length == GDI_ERROR)) goto fail_with_releasedc;
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buffer = (char *) malloc (length);
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if (unlikely (!buffer)) goto fail_with_releasedc;
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length = GetFontData (hdc, hb_uint32_swap (tag), 0, buffer, length);
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if (unlikely (length == GDI_ERROR)) goto fail_with_releasedc_and_free;
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ReleaseDC (nullptr, hdc);
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return hb_blob_create ((const char *) buffer, length, HB_MEMORY_MODE_WRITABLE, buffer, free);
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fail_with_releasedc_and_free:
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free (buffer);
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fail_with_releasedc:
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ReleaseDC (nullptr, hdc);
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fail:
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return hb_blob_get_empty ();
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}
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/**
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* hb_gdi_face_create:
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* @hfont: a HFONT object.
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*
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* Return value: #hb_face_t object corresponding to the given input
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*
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* Since: 2.6.0
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**/
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hb_face_t *
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hb_gdi_face_create (HFONT hfont)
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{
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return hb_face_create_for_tables (_hb_gdi_reference_table, (void *) hfont, nullptr);
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}
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#endif
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