13ce0e3709
* clutter/clutter-stage.c:
* clutter/clutter-stage.h:
Add clutter_stage_set_xwindow_foreign() call
* clutter/clutter-util.c:
* clutter/clutter-util.h:
Add some X error traps
* examples/super-oh.c:
Toy with us of new clutter_stage_set_xwindow_foreign() for
optional screensaver functionality.
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/*
|
|
* Clutter.
|
|
*
|
|
* An OpenGL based 'interactive canvas' library.
|
|
*
|
|
* Authored By Matthew Allum <mallum@openedhand.com>
|
|
*
|
|
* Copyright (C) 2006 OpenedHand
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser 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.
|
|
*/
|
|
|
|
#include "clutter-util.h"
|
|
#include "clutter-main.h"
|
|
|
|
static int TrappedErrorCode = 0;
|
|
static int (*old_error_handler) (Display *, XErrorEvent *);
|
|
|
|
static int
|
|
error_handler(Display *xdpy,
|
|
XErrorEvent *error)
|
|
{
|
|
TrappedErrorCode = error->error_code;
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
clutter_util_trap_x_errors(void)
|
|
{
|
|
TrappedErrorCode = 0;
|
|
old_error_handler = XSetErrorHandler(error_handler);
|
|
}
|
|
|
|
int
|
|
clutter_util_untrap_x_errors(void)
|
|
{
|
|
XSetErrorHandler(old_error_handler);
|
|
return TrappedErrorCode;
|
|
}
|
|
|
|
int
|
|
clutter_util_next_p2 (int a)
|
|
{
|
|
int rval=1;
|
|
|
|
while(rval < a)
|
|
rval <<= 1;
|
|
|
|
return rval;
|
|
}
|
|
|
|
#if 0
|
|
gboolean
|
|
clutter_util_can_create_texture (int width, int height)
|
|
{
|
|
GLint new_width;
|
|
|
|
glTexImage2D (GL_PROXY_VIDEO_TEXTURE_2D, 0, GL_RGBA,
|
|
width, height, 0 /* border */,
|
|
GL_RGBA, PIXEL_TYPE, NULL);
|
|
|
|
glGetTexLevelParameteriv (GL_PROXY_VIDEO_TEXTURE_2D, 0,
|
|
GL_VIDEO_TEXTURE_WIDTH, &new_width);
|
|
|
|
return new_width != 0;
|
|
}
|
|
#endif
|