OpenShot Library | libopenshot  0.2.6
MagickUtilities.h
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1 /**
2  * @file
3  * @brief Header file for MagickUtilities (IM6/IM7 compatibility overlay)
4  * @author Jonathan Thomas <jonathan@openshot.org>
5  * @author FeRD (Frank Dana) <ferdnyc@gmail.com>
6  */
7 
8 /* LICENSE
9  *
10  * Copyright (c) 2008-2019 OpenShot Studios, LLC
11  * <http://www.openshotstudios.com/>. This file is part of
12  * OpenShot Library (libopenshot), an open-source project dedicated to
13  * delivering high quality video editing and animation solutions to the
14  * world. For more information visit <http://www.openshot.org/>.
15  *
16  * OpenShot Library (libopenshot) is free software: you can redistribute it
17  * and/or modify it under the terms of the GNU Lesser General Public License
18  * as published by the Free Software Foundation, either version 3 of the
19  * License, or (at your option) any later version.
20  *
21  * OpenShot Library (libopenshot) is distributed in the hope that it will be
22  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24  * GNU Lesser General Public License for more details.
25  *
26  * You should have received a copy of the GNU Lesser General Public License
27  * along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
28  */
29 
30 #ifndef OPENSHOT_MAGICK_UTILITIES_H
31 #define OPENSHOT_MAGICK_UTILITIES_H
32 
33 #ifdef USE_IMAGEMAGICK
34 
35 // Exclude a warning message with IM6 headers
36 #pragma GCC diagnostic push
37 #pragma GCC diagnostic ignored "-Wignored-qualifiers"
38  #include "Magick++.h"
39 #pragma GCC diagnostic pop
40 
41  // Determine ImageMagick version, as IM7 isn't fully
42  // backwards compatible
43  #ifndef NEW_MAGICK
44  #define NEW_MAGICK (MagickLibVersion >= 0x700)
45  #endif
46 
47  // IM7: <Magick::Image>->alpha(bool)
48  // IM6: <Magick::Image>->matte(bool)
49  #if NEW_MAGICK
50  #define MAGICK_IMAGE_ALPHA(im, a) im->alpha((a))
51  #else
52  #define MAGICK_IMAGE_ALPHA(im, a) im->matte((a))
53  #endif
54 
55  // IM7: vector<Magick::Drawable>
56  // IM6: list<Magick::Drawable>
57  // (both have the push_back() method which is all we use)
58  #if NEW_MAGICK
59  #define MAGICK_DRAWABLE std::vector<Magick::Drawable>
60  #else
61  #define MAGICK_DRAWABLE std::list<Magick::Drawable>
62  #endif
63 
64 #endif
65 #endif