GL sink plugin. (Bug #147302)

Original commit message from CVS:
Patch from Gernot Ziegler <gz@lysator.liu.se> rewriting the
GL sink plugin.  (Bug #147302)
* configure.ac: Test for OpenGL
* sys/Makefile.am: Use test for OpenGL
* sys/glsink/Makefile.am:
* sys/glsink/glimagesink.c: rewrite
* sys/glsink/glimagesink.h: rewrite

1 files changed, 137 insertions, 0 deletions

diff --git a/sys/glsink/glimagesink.h b/sys/glsink/glimagesink.h
new file mode 100644
index 00000000..15e866de
--- /dev/null
+++ b/sys/glsink/glimagesink.h
@@ -0,0 +1,137 @@
+/* GStreamer
+ * Copyright (C) <2003> Julien Moutte <julien@moutte.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+ 
+#ifndef __GST_GLIMAGESINK_H__
+#define __GST_GLIMAGESINK_H__
+
+#include <gst/video/videosink.h>
+
+#include <X11/Xlib.h>
+#include <GL/glx.h>
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#include <string.h>
+#include <math.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_GLIMAGESINK \
+  (gst_glimagesink_get_type())
+#define GST_GLIMAGESINK(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_GLIMAGESINK, GstGLImageSink))
+#define GST_GLIMAGESINK_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_GLIMAGESINK, GstGLImageSink))
+#define GST_IS_GLIMAGESINK(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_GLIMAGESINK))
+#define GST_IS_GLIMAGESINK_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_GLIMAGESINK))
+
+typedef struct _GstXContext GstXContext;
+typedef struct _GstGLWindow GstGLWindow;
+typedef struct _GstGLImage GstGLImage;
+
+typedef struct _GstGLImageSink GstGLImageSink;
+typedef struct _GstGLImageSinkClass GstGLImageSinkClass;
+
+/* Global X Context stuff */
+struct _GstXContext {
+  Display *disp;
+  
+  Screen *screen;
+  gint screen_num;
+  
+  Visual *visual;
+  XVisualInfo *visualinfo;
+  
+  Window root;
+  GLXContext glx;
+  
+  gulong white, black;
+  
+  gint depth;
+  gint bpp;
+  gint endianness;
+  
+  gboolean use_xshm;
+  
+  GstCaps *caps;
+};
+
+/* XWindow stuff */
+struct _GstGLWindow {
+  XSetWindowAttributes attr;
+  Window win;
+  gint width, height;
+  gboolean internal;
+};
+
+/* XImage stuff */
+struct _GstGLImage {
+  /* Reference to the ximagesink we belong to */
+  GstGLImageSink *glimagesink;
+  
+  GLuint texid; 
+  
+  char *data;
+  gint width, height, size;
+};
+
+struct _GstGLImageSink {
+  /* Our element stuff */
+  GstVideoSink videosink;
+
+  char *display_name;
+  
+  GstXContext *xcontext;
+  GstGLWindow *window;
+  GstGLImage *glimage;
+  GstGLImage *cur_image;
+  
+  gdouble framerate;
+  GMutex *x_lock;
+  
+  gint pixel_width, pixel_height;  /* Unused */
+ 
+  GstClockTime time;
+  
+  GMutex *pool_lock;
+  GSList *image_pool;
+
+  guint pointer_x, pointer_y;
+  gboolean pointer_moved;
+  gboolean pointer_button[5];
+
+  gboolean synchronous;
+  gboolean signal_handoffs;  
+};
+
+struct _GstGLImageSinkClass {
+  GstVideoSinkClass parent_class;
+
+  /* signals */
+  void (*handoff) (GstElement *element, GstBuffer *buf, GstPad *pad);
+  void (*bufferalloc) (GstElement *element, GstBuffer *buf, GstPad *pad);
+};
+
+GType gst_glimagesink_get_type(void);
+
+G_END_DECLS
+
+#endif /* __GST_GLIMAGESINK_H__ */