1 /* 2 * GStreamer 3 * Copyright (C) 2015 Lubosz Sarnecki <lubosz.sarnecki@collabora.co.uk> 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_COMPOSITOR_H__ 22 #define __GST_GL_OVERLAY_COMPOSITOR_H__ 23 24 #include <gst/video/video.h> 25 #include <gst/gl/gstgl_fwd.h> 26 27 #define GST_TYPE_GL_OVERLAY_COMPOSITOR (gst_gl_overlay_compositor_get_type()) 28 #define GST_GL_OVERLAY_COMPOSITOR(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_OVERLAY_COMPOSITOR,GstGLOverlayCompositor)) 29 #define GST_GL_OVERLAY_COMPOSITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_OVERLAY_COMPOSITOR,GstGLOverlayCompositorClass)) 30 #define GST_IS_GL_OVERLAY_COMPOSITOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_OVERLAY_COMPOSITOR)) 31 #define GST_IS_GL_OVERLAY_COMPOSITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_OVERLAY_COMPOSITOR)) 32 #define GST_GL_OVERLAY_COMPOSITOR_CAST(obj) ((GstGLOverlayCompositor*)(obj)) 33 34 G_BEGIN_DECLS 35 36 GST_GL_API 37 GType gst_gl_overlay_compositor_get_type (void); 38 39 /** 40 * GstGLOverlayCompositor: 41 * 42 * Opaque #GstGLOverlayCompositor object 43 */ 44 struct _GstGLOverlayCompositor 45 { 46 /* <private> */ 47 GstObject parent; 48 49 GstGLContext *context; 50 51 guint last_window_width; 52 guint last_window_height; 53 54 GList * overlays; 55 56 GstGLShader *shader; 57 gint position_attrib; 58 gint texcoord_attrib; 59 60 gpointer _padding[GST_PADDING]; 61 }; 62 63 /** 64 * GstGLOverlayCompositorClass: 65 * 66 */ 67 struct _GstGLOverlayCompositorClass 68 { 69 GstObjectClass object_class; 70 71 /* <private> */ 72 gpointer _padding[GST_PADDING]; 73 }; 74 75 GST_GL_API 76 GstGLOverlayCompositor *gst_gl_overlay_compositor_new (GstGLContext * context); 77 78 GST_GL_API 79 void gst_gl_overlay_compositor_free_overlays (GstGLOverlayCompositor * compositor); 80 81 GST_GL_API 82 void gst_gl_overlay_compositor_upload_overlays (GstGLOverlayCompositor * compositor, 83 GstBuffer * buf); 84 85 GST_GL_API 86 void gst_gl_overlay_compositor_draw_overlays (GstGLOverlayCompositor * compositor); 87 88 GST_GL_API 89 GstCaps * gst_gl_overlay_compositor_add_caps(GstCaps * caps); 90 91 G_END_DECLS 92 #endif /* __GST_GL_OVERLAY_COMPOSITOR_H__ */ 93