1 /* 2 * GStreamer 3 * Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with this library; if not, write to the 17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21 #ifndef _GST_GL_OVERLAY_H_ 22 #define _GST_GL_OVERLAY_H_ 23 24 #include <gst/gl/gstglfilter.h> 25 #include <gst/gl/gstglfuncs.h> 26 27 G_BEGIN_DECLS 28 29 #define GST_TYPE_GL_OVERLAY (gst_gl_overlay_get_type()) 30 #define GST_GL_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_GL_OVERLAY,GstGLOverlay)) 31 #define GST_IS_GL_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_GL_OVERLAY)) 32 #define GST_GL_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) , GST_TYPE_GL_OVERLAY,GstGLOverlayClass)) 33 #define GST_IS_GL_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) , GST_TYPE_GL_OVERLAY)) 34 #define GST_GL_OVERLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) , GST_TYPE_GL_OVERLAY,GstGLOverlayClass)) 35 36 typedef struct _GstGLOverlay GstGLOverlay; 37 typedef struct _GstGLOverlayClass GstGLOverlayClass; 38 39 struct _GstGLOverlay 40 { 41 GstGLFilter filter; 42 43 /* properties */ 44 gchar *location; 45 gint offset_x; 46 gint offset_y; 47 48 gdouble relative_x; 49 gdouble relative_y; 50 51 gint overlay_width; 52 gint overlay_height; 53 54 gdouble alpha; 55 56 /* <private> */ 57 GstGLShader *shader; 58 GstGLMemory *image_memory; 59 60 gboolean location_has_changed; 61 gint window_width, window_height; 62 gint image_width, image_height; 63 64 gboolean geometry_change; 65 66 GLuint vao; 67 GLuint overlay_vao; 68 GLuint vbo; 69 GLuint overlay_vbo; 70 GLuint vbo_indices; 71 GLuint attr_position; 72 GLuint attr_texture; 73 }; 74 75 struct _GstGLOverlayClass 76 { 77 GstGLFilterClass filter_class; 78 }; 79 80 GType gst_gl_overlay_get_type (void); 81 82 G_END_DECLS 83 84 #endif /* _GST_GL_OVERLAY_H_ */ 85