mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-28 19:20:35 +00:00
Code Issues 1 Projects Releases Wiki Activity

[692/906] window_x11: add XError trapping

Browse source 
some functions in GLX can fail if the implementation does not support
certain features we ask for (i.e. GL 3) bringing down the entire
application
This commit is contained in:
Matthew Waters 2013-06-03 18:15:45 +10:00
parent 7f2770af7c
commit 3af4ce25ff
2 changed files with 59 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

74
gst-libs/gst/gl/x11/gstglwindow_x11.c
View file

@ -45,6 +45,10 @@
#define gst_gl_window_x11_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE (GstGLWindowX11, gst_gl_window_x11, GST_GL_TYPE_WINDOW);
/* X error trap */
static int TrappedErrorCode = 0;
static int (*old_error_handler) (Display *, XErrorEvent *);
enum
{
ARG_0,
@ -607,13 +611,13 @@ gst_gl_window_x11_run (GstGLWindow * window)
if (window_x11->running) {
#if SIZEOF_VOID_P == 8
GstGLWindowCB custom_cb =
(GstGLWindowCB) (((event.xclient.data.
l[0] & 0xffffffff) << 32) | (event.xclient.data.
l[1] & 0xffffffff));
(GstGLWindowCB) (((event.xclient.
data.l[0] & 0xffffffff) << 32) | (event.xclient.
data.l[1] & 0xffffffff));
gpointer custom_data =
(gpointer) (((event.xclient.data.
l[2] & 0xffffffff) << 32) | (event.xclient.data.
l[3] & 0xffffffff));
(gpointer) (((event.xclient.
data.l[2] & 0xffffffff) << 32) | (event.xclient.
data.l[3] & 0xffffffff));
#else
GstGLWindowCB custom_cb = (GstGLWindowCB) event.xclient.data.l[0];
gpointer custom_data = (gpointer) event.xclient.data.l[1];
@ -642,13 +646,13 @@ gst_gl_window_x11_run (GstGLWindow * window)
&& event.xclient.message_type == wm_quit_loop) {
#if SIZEOF_VOID_P == 8
GstGLWindowCB destroy_cb =
(GstGLWindowCB) (((event.xclient.data.
l[0] & 0xffffffff) << 32) | (event.xclient.data.
l[1] & 0xffffffff));
(GstGLWindowCB) (((event.xclient.
data.l[0] & 0xffffffff) << 32) | (event.xclient.
data.l[1] & 0xffffffff));
gpointer destroy_data =
(gpointer) (((event.xclient.data.
l[2] & 0xffffffff) << 32) | (event.xclient.data.
l[3] & 0xffffffff));
(gpointer) (((event.xclient.
data.l[2] & 0xffffffff) << 32) | (event.xclient.
data.l[3] & 0xffffffff));
#else
GstGLWindowCB destroy_cb = (GstGLWindowCB) event.xclient.data.l[0];
gpointer destroy_data = (gpointer) event.xclient.data.l[1];
@ -666,13 +670,13 @@ gst_gl_window_x11_run (GstGLWindow * window)
&pending_event)) {
#if SIZEOF_VOID_P == 8
GstGLWindowCB custom_cb =
(GstGLWindowCB) (((event.xclient.data.
l[0] & 0xffffffff) << 32) | (event.xclient.data.
l[1] & 0xffffffff));
(GstGLWindowCB) (((event.xclient.
data.l[0] & 0xffffffff) << 32) | (event.xclient.
data.l[1] & 0xffffffff));
gpointer custom_data =
(gpointer) (((event.xclient.data.
l[2] & 0xffffffff) << 32) | (event.xclient.data.
l[3] & 0xffffffff));
(gpointer) (((event.xclient.
data.l[2] & 0xffffffff) << 32) | (event.xclient.
data.l[3] & 0xffffffff));
#else
GstGLWindowCB custom_cb = (GstGLWindowCB) event.xclient.data.l[0];
gpointer custom_data = (gpointer) event.xclient.data.l[1];
@ -826,3 +830,37 @@ gst_gl_window_x11_send_message (GstGLWindow * window, GstGLWindowCB callback,
GST_GL_WINDOW_GET_LOCK (window));
}
}
static int
error_handler (Display * xdpy, XErrorEvent * error)
{
TrappedErrorCode = error->error_code;
return 0;
}
/**
* gst_gl_window_x11_trap_x_errors:
*
* Traps every X error until gst_gl_window_x11_untrap_x_errors() is called.
*/
void
gst_gl_window_x11_trap_x_errors (void)
{
TrappedErrorCode = 0;
old_error_handler = XSetErrorHandler (error_handler);
}
/**
* gst_gl_window_x11_untrap_x_errors:
*
* Removes the X error trap and returns the current status.
*
* Return value: the trapped error code, or 0 for success
*/
gint
gst_gl_window_x11_untrap_x_errors (void)
{
XSetErrorHandler (old_error_handler);
return TrappedErrorCode;
}

3
gst-libs/gst/gl/x11/gstglwindow_x11.h
View file

@ -97,6 +97,9 @@ GType gst_gl_window_x11_get_type (void);
GstGLWindowX11 * gst_gl_window_x11_new (void);
void gst_gl_window_x11_trap_x_errors (void);
gint gst_gl_window_x11_untrap_x_errors (void);
G_END_DECLS
#endif /* __GST_GL_WINDOW_X11_H__ */