Grcov report - xcb-surface-source.c

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/*

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 * Copyright © 2009 Chris Wilson

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 * Permission to use, copy, modify, distribute, and sell this software

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 * and its documentation for any purpose is hereby granted without

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 * fee, provided that the above copyright notice appear in all copies

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 * and that both that copyright notice and this permission notice

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 * appear in supporting documentation, and that the name of

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 * Chris Wilson not be used in advertising or publicity pertaining to

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 * distribution of the software without specific, written prior

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 * permission. Chris Wilson makes no representations about the

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 * suitability of this software for any purpose.  It is provided "as

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 * is" without express or implied warranty.

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 * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS

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 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND

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 * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,

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 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER

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 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION

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 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR

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 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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 * Author: Chris Wilson <chris@chris-wilson.co.uk>

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*/

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#include "cairo-test.h"

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#if CAIRO_HAS_XCB_SURFACE

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#include <cairo-xcb.h>

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#endif

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#include "surface-source.c"

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#if CAIRO_HAS_XCB_SURFACE

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static cairo_user_data_key_t closure_key;

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struct closure {

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    cairo_device_t *device;

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    xcb_connection_t *connection;

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    xcb_pixmap_t pixmap;

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};

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static void

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cleanup (void *data)

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    struct closure *arg = data;

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    cairo_device_finish (arg->device);

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    cairo_device_destroy (arg->device);

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    xcb_free_pixmap (arg->connection, arg->pixmap);

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    xcb_disconnect (arg->connection);

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    free (arg);

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4

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static xcb_render_pictforminfo_t *

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find_depth (xcb_connection_t *connection, int depth, void **formats_out)

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    xcb_render_query_pict_formats_reply_t	*formats;

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    xcb_render_query_pict_formats_cookie_t cookie;

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    xcb_render_pictforminfo_iterator_t i;

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    cookie = xcb_render_query_pict_formats (connection);

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    xcb_flush (connection);

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    formats = xcb_render_query_pict_formats_reply (connection, cookie, 0);

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    if (formats == NULL)

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	return NULL;

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    for (i = xcb_render_query_pict_formats_formats_iterator (formats);

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	 i.rem;

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	 xcb_render_pictforminfo_next (&i))

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	if (XCB_RENDER_PICT_TYPE_DIRECT != i.data->type)

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	    continue;

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	if (depth != i.data->depth)

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	    continue;

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	*formats_out = formats;

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	return i.data;

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    free (formats);

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    return NULL;

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#endif

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static cairo_surface_t *

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create_source_surface (int size)

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#if CAIRO_HAS_XCB_SURFACE

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    xcb_connection_t *connection;

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    xcb_render_pictforminfo_t *render_format;

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    struct closure *data;

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    cairo_surface_t *surface;

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    xcb_screen_t *root;

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    xcb_void_cookie_t cookie;

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    void *formats;

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    connection = xcb_connect (NULL, NULL);

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    if (connection == NULL)

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	return NULL;

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    data = xmalloc (sizeof (struct closure));

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    data->connection = connection;

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    render_format = find_depth (connection, 32, &formats);

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    if (render_format == NULL) {

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	xcb_disconnect (connection);

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	free (data);

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	return NULL;

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    root = xcb_setup_roots_iterator (xcb_get_setup (connection)).data;

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    data->pixmap = xcb_generate_id (connection);

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    cookie = xcb_create_pixmap_checked (connection, 32,

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					data->pixmap, root->root, size, size);

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    /* slow, but sure */

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    if (xcb_request_check (connection, cookie) != NULL) {

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	free (formats);

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	xcb_disconnect (connection);

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	free (data);

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	return NULL;

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    surface = cairo_xcb_surface_create_with_xrender_format (connection,

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							    root,

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							    data->pixmap,

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							    render_format,

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							    size, size);

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    free (formats);

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    data->device = cairo_device_reference (cairo_surface_get_device (surface));

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    cairo_surface_set_user_data (surface, &closure_key, data, cleanup);

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    return surface;

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#else

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    return NULL;

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#endif

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CAIRO_TEST (xcb_surface_source,

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	    "Test using a XCB surface as the source",

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	    "source", /* keywords */

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	    NULL, /* requirements */

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	    SIZE, SIZE,

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	    preamble, draw)