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/*
* Copyright © 2009 Chris Wilson
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Chris Wilson not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Chris Wilson makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairo-test.h"
#if CAIRO_HAS_XCB_SURFACE
#include <cairo-xcb.h>
#endif
#include "surface-source.c"
#if CAIRO_HAS_XCB_SURFACE
static cairo_user_data_key_t closure_key;
struct closure {
cairo_device_t *device;
xcb_connection_t *connection;
xcb_pixmap_t pixmap;
};
static void
cleanup (void *data)
{
struct closure *arg = data;
cairo_device_finish (arg->device);
cairo_device_destroy (arg->device);
xcb_free_pixmap (arg->connection, arg->pixmap);
xcb_disconnect (arg->connection);
free (arg);
}
static xcb_render_pictforminfo_t *
find_depth (xcb_connection_t *connection, int depth, void **formats_out)
{
xcb_render_query_pict_formats_reply_t *formats;
xcb_render_query_pict_formats_cookie_t cookie;
xcb_render_pictforminfo_iterator_t i;
cookie = xcb_render_query_pict_formats (connection);
xcb_flush (connection);
formats = xcb_render_query_pict_formats_reply (connection, cookie, 0);
if (formats == NULL)
return NULL;
for (i = xcb_render_query_pict_formats_formats_iterator (formats);
i.rem;
xcb_render_pictforminfo_next (&i))
{
if (XCB_RENDER_PICT_TYPE_DIRECT != i.data->type)
continue;
if (depth != i.data->depth)
continue;
*formats_out = formats;
return i.data;
}
free (formats);
return NULL;
}
#endif
static cairo_surface_t *
create_source_surface (int size)
{
#if CAIRO_HAS_XCB_SURFACE
xcb_connection_t *connection;
xcb_render_pictforminfo_t *render_format;
struct closure *data;
cairo_surface_t *surface;
xcb_screen_t *root;
xcb_void_cookie_t cookie;
void *formats;
connection = xcb_connect (NULL, NULL);
if (connection == NULL)
return NULL;
data = xmalloc (sizeof (struct closure));
data->connection = connection;
render_format = find_depth (connection, 32, &formats);
if (render_format == NULL) {
xcb_disconnect (connection);
free (data);
return NULL;
}
root = xcb_setup_roots_iterator (xcb_get_setup (connection)).data;
data->pixmap = xcb_generate_id (connection);
cookie = xcb_create_pixmap_checked (connection, 32,
data->pixmap, root->root, size, size);
/* slow, but sure */
if (xcb_request_check (connection, cookie) != NULL) {
free (formats);
xcb_disconnect (connection);
free (data);
return NULL;
}
surface = cairo_xcb_surface_create_with_xrender_format (connection,
root,
data->pixmap,
render_format,
size, size);
free (formats);
data->device = cairo_device_reference (cairo_surface_get_device (surface));
cairo_surface_set_user_data (surface, &closure_key, data, cleanup);
return surface;
#else
return NULL;
#endif
}
CAIRO_TEST (xcb_surface_source,
"Test using a XCB surface as the source",
"source", /* keywords */
NULL, /* requirements */
SIZE, SIZE,
preamble, draw)
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