1 /* 2 * GStreamer 3 * Copyright (C) 2007 David Schleef <ds@schleef.org> 4 * Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com> 5 * Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com> 6 * 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. 11 * 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. 16 * 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., 51 Franklin St, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 #ifndef _GST_GL_BASE_FILTER_H_ 24 #define _GST_GL_BASE_FILTER_H_ 25 26 #include <gst/base/gstbasetransform.h> 27 28 #include <gst/gl/gstgl_fwd.h> 29 30 G_BEGIN_DECLS 31 32 GST_GL_API 33 GType gst_gl_base_filter_get_type(void); 34 #define GST_TYPE_GL_BASE_FILTER (gst_gl_base_filter_get_type()) 35 #define GST_GL_BASE_FILTER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_BASE_FILTER,GstGLBaseFilter)) 36 #define GST_IS_GL_BASE_FILTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_BASE_FILTER)) 37 #define GST_GL_BASE_FILTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_BASE_FILTER,GstGLBaseFilterClass)) 38 #define GST_IS_GL_BASE_FILTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_BASE_FILTER)) 39 #define GST_GL_BASE_FILTER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_BASE_FILTER,GstGLBaseFilterClass)) 40 41 /** 42 * GstGLBaseFilter: 43 * @display: the currently configured #GstGLDisplay 44 * @context: the currently configured #GstGLContext 45 * @in_caps: the currently configured input #GstCaps 46 * @out_caps: the currently configured output #GstCaps 47 * 48 * The parent instance type of a base GStreamer GL Filter. 49 */ 50 struct _GstGLBaseFilter 51 { 52 GstBaseTransform parent; 53 54 /*< public >*/ 55 GstGLDisplay *display; 56 GstGLContext *context; 57 58 GstCaps *in_caps; 59 GstCaps *out_caps; 60 61 /*< private >*/ 62 gpointer _padding[GST_PADDING]; 63 64 GstGLBaseFilterPrivate *priv; 65 }; 66 67 /** 68 * GstGLBaseFilterClass: 69 * @supported_gl_api: the logical-OR of #GstGLAPI's supported by this element 70 * @gl_start: called in the GL thread to setup the element GL state. 71 * @gl_stop: called in the GL thread to setup the element GL state. 72 * @gl_set_caps: called in the GL thread when caps are set on @filter. 73 * Note: this will also be called when changing OpenGL contexts 74 * where #GstBaseTransform::set_caps may not. 75 * 76 * The base class for GStreamer GL Filter. 77 */ 78 struct _GstGLBaseFilterClass 79 { 80 GstBaseTransformClass parent_class; 81 82 /*< public >*/ 83 GstGLAPI supported_gl_api; 84 85 gboolean (*gl_start) (GstGLBaseFilter *filter); 86 void (*gl_stop) (GstGLBaseFilter *filter); 87 gboolean (*gl_set_caps) (GstGLBaseFilter *filter, GstCaps * incaps, GstCaps * outcaps); 88 89 /*< private >*/ 90 gpointer _padding[GST_PADDING]; 91 }; 92 93 GST_GL_API 94 gboolean gst_gl_base_filter_find_gl_context (GstGLBaseFilter * filter); 95 GST_GL_API 96 GstGLContext * gst_gl_base_filter_get_gl_context (GstGLBaseFilter * filter); 97 98 G_END_DECLS 99 100 #endif /* _GST_GL_BASE_FILTER_H_ */ 101