cairo/test/xlib-surface-source.c

   1 /*
   2  * Copyright © 2008 Chris Wilson
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software
   5  * and its documentation for any purpose is hereby granted without
   6  * fee, provided that the above copyright notice appear in all copies
   7  * and that both that copyright notice and this permission notice
   8  * appear in supporting documentation, and that the name of
   9  * Chris Wilson not be used in advertising or publicity pertaining to
  10  * distribution of the software without specific, written prior
  11  * permission. Chris Wilson makes no representations about the
  12  * suitability of this software for any purpose.  It is provided "as
  13  * is" without express or implied warranty.
  14  *
  15  * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
  16  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  17  * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
  18  * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  19  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  20  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
  21  * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  22  *
  23  * Author: Chris Wilson <chris@chris-wilson.co.uk>
  24  */
  25
  26 #include "cairo-test.h"
  27 #include <cairo-xlib.h>
  28 #if CAIRO_HAS_XLIB_XRENDER_SURFACE
  29 #include <cairo-xlib-xrender.h>
  30 #endif
  31
  32 #define NAME "xlib"
  33 #include "surface-source.c"
  34
  35 static cairo_user_data_key_t closure_key;
  36
  37 struct closure {
  38     Display *dpy;
  39     Pixmap pix;
  40 };
  41
  42 static void
  43 cleanup (void *data)
  44 {
  45     struct closure *arg = data;
  46
  47     XFreePixmap (arg->dpy, arg->pix);
  48     XCloseDisplay (arg->dpy);
  49
  50     free (arg);
  51 }
  52
  53 static cairo_surface_t *
  54 create_source_surface (int size)
  55 {
  56 #if CAIRO_HAS_XLIB_XRENDER_SURFACE
  57     XRenderPictFormat *xrender_format;
  58     struct closure *data;
  59     cairo_surface_t *surface;
  60
  61     data = xmalloc (sizeof (struct closure));
  62
  63     data->dpy = XOpenDisplay (NULL);
  64     if (!data->dpy) {
  65         return NULL;
  66     }
  67
  68     xrender_format = XRenderFindStandardFormat (data->dpy, PictStandardARGB32);
  69
  70     data->pix = XCreatePixmap (data->dpy, DefaultRootWindow (data->dpy),
  71                                size, size, xrender_format->depth);
  72
  73     surface = cairo_xlib_surface_create_with_xrender_format (data->dpy,
  74                                                              data->pix,
  75                                                              DefaultScreenOfDisplay (data->dpy),
  76                                                              xrender_format,
  77                                                              size, size);
  78     cairo_surface_set_user_data (surface, &closure_key, data, cleanup);
  79
  80     return surface;
  81 #else
  82     return NULL;
  83 #endif
  84 }