2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2004,2005 Wim Taymans <wim@fluendo.com>
5 * gstconfig.h: GST_DISABLE_* macros for build configuration
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
24 * @short_description: Build configuration options
26 * This describes the configuration options for GStreamer. When building
27 * GStreamer there are a lot of parts (known internally as "subsystems" ) that
28 * can be disabled for various reasons. The most common reasons are speed and
29 * size, which is important because GStreamer is designed to run on embedded
32 * If a subsystem is disabled, most of this changes are done in an API
33 * compatible way, so you don't need to adapt your code in most cases. It is
34 * never done in an ABI compatible way though. So if you want to disable a
35 * suybsystem, you have to rebuild all programs depending on GStreamer, too.
37 * If a subsystem is disabled in GStreamer, a value is defined in
38 * <gst/gst.h>. You can check this if you do subsystem-specific stuff.
40 * <title>Doing subsystem specific things</title>
42 * &hash;ifndef GST_DISABLE_GST_DEBUG
43 * // do stuff specific to the debugging subsystem
44 * &hash;endif // GST_DISABLE_GST_DEBUG
49 #ifndef __GST_CONFIG_H__
50 #define __GST_CONFIG_H__
52 /*** trick gtk-doc into believing these symbols are defined (yes, it's ugly) */
55 #define GST_DISABLE_LOADSAVE_REGISTRY 1
56 #define GST_DISABLE_GST_DEBUG 1
57 #define GST_DISABLE_LOADSAVE 1
58 #define GST_DISABLE_PARSE 1
59 #define GST_DISABLE_TRACE 1
60 #define GST_DISABLE_ALLOC_TRACE 1
61 #define GST_DISABLE_REGISTRY 1
62 #define GST_DISABLE_PLUGIN 1
63 #define GST_HAVE_GLIB_2_8 1
66 /***** default padding of structures *****/
68 #define GST_PADDING_INIT {0}
70 /***** padding for very extensible base classes *****/
71 #define GST_PADDING_LARGE 20
74 /***** disabling of subsystems *****/
76 /* wether or not the debugging subsystem is enabled */
77 /* #undef GST_DISABLE_GST_DEBUG */
80 /* #undef GST_DISABLE_LOADSAVE */
83 /* #undef GST_DISABLE_PARSE */
86 /* #undef GST_DISABLE_TRACE */
89 /* #undef GST_DISABLE_ALLOC_TRACE */
92 /* #undef GST_DISABLE_REGISTRY */
95 /* #undef GST_DISABLE_PLUGIN */
97 /* printf extension format */
101 * printf format type used to debug GStreamer types.
102 * This can only be used on types whose size is >= sizeof(gpointer).
104 #define GST_PTR_FORMAT "p"
107 * GST_SEGMENT_FORMAT:
109 * printf format type used to debug GStreamer segments.
110 * This can only be used on pointers to GstSegment structures.
114 #define GST_SEGMENT_FORMAT "p"
116 /* whether or not GST_PTR_FORMAT or GST_SEGMENT_FORMAT are using
117 * the printf extension mechanism. This is for internal use in our
118 * header files so we know whether we can use G_GNUC_PRINTF or not */
119 #undef GST_USING_PRINTF_EXTENSION
121 /* whether or not the CPU supports unaligned access */
122 #define GST_HAVE_UNALIGNED_ACCESS 1
124 /* whether or not we are using glib 2.8 api, e.g. atomic gobject
126 #define GST_HAVE_GLIB_2_8 1
128 /***** Deal with XML stuff, we have to handle both loadsave and registry *****/
130 #if (! (defined(GST_DISABLE_LOADSAVE) && defined(GST_DISABLE_REGISTRY)) )
131 # include <libxml/parser.h>
133 # define GST_DISABLE_LOADSAVE_REGISTRY
139 * Export the given variable from the built shared object.
141 * On Windows, this exports the variable from the DLL.
142 * On other platforms, this gets defined to "extern".
147 * Export the plugin's definition.
149 * On Windows, this exports the plugin definition from the DLL.
150 * On other platforms, this gets defined as a no-op.
152 #if defined(WIN32) && (!defined(__MINGW32__))
153 #define GST_PLUGIN_EXPORT __declspec(dllexport) extern
155 #define GST_EXPORT __declspec(dllexport) extern
157 #define GST_EXPORT __declspec(dllimport) extern
159 #else /* not WIN32 */
160 #define GST_PLUGIN_EXPORT
161 #define GST_EXPORT extern
164 #endif /* __GST_CONFIG_H__ */