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/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
/*
* Copyright © 2004,2006 Red Hat, Inc.
*
* 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
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org>
*/
#include "cairo-boilerplate-private.h"
#include <cairo-xcb-xrender.h>
#include <xcb/xcb_renderutil.h>
static const cairo_user_data_key_t xcb_closure_key;
typedef struct _xcb_target_closure {
xcb_connection_t *c;
xcb_pixmap_t pixmap;
} xcb_target_closure_t;
static void
_cairo_boilerplate_xcb_cleanup (void *closure)
{
xcb_target_closure_t *xtc = closure;
xcb_free_pixmap (xtc->c, xtc->pixmap);
xcb_disconnect (xtc->c);
free (xtc);
}
static void
_cairo_boilerplate_xcb_synchronize (void *closure)
{
xcb_target_closure_t *xtc = closure;
free (xcb_get_image_reply (xtc->c,
xcb_get_image (xtc->c, XCB_IMAGE_FORMAT_Z_PIXMAP,
xtc->pixmap, 0, 0, 1, 1, /* AllPlanes */ ~0UL),
0));
}
static cairo_surface_t *
_cairo_boilerplate_xcb_create_surface (const char *name,
cairo_content_t content,
double width,
double height,
double max_width,
double max_height,
cairo_boilerplate_mode_t mode,
int id,
void **closure)
{
xcb_screen_t *root;
xcb_target_closure_t *xtc;
xcb_connection_t *c;
xcb_render_pictforminfo_t *render_format;
xcb_pict_standard_t format;
cairo_surface_t *surface;
cairo_status_t status;
*closure = xtc = xmalloc (sizeof (xcb_target_closure_t));
if (width == 0)
width = 1;
if (height == 0)
height = 1;
xtc->c = c = xcb_connect(NULL,NULL);
if (xcb_connection_has_error(c)) {
fprintf (stderr, "Failed to connect to X server through XCB\n");
return NULL;
}
root = xcb_setup_roots_iterator(xcb_get_setup(c)).data;
xtc->pixmap = xcb_generate_id (c);
xcb_create_pixmap (c, 32, xtc->pixmap, root->root,
width, height);
switch (content) {
case CAIRO_CONTENT_COLOR:
format = XCB_PICT_STANDARD_RGB_24;
break;
case CAIRO_CONTENT_COLOR_ALPHA:
format = XCB_PICT_STANDARD_ARGB_32;
break;
case CAIRO_CONTENT_ALPHA: /* would be XCB_PICT_STANDARD_A_8 */
default:
fprintf (stderr, "Invalid content for XCB test: %d\n", content);
return NULL;
}
render_format = xcb_render_util_find_standard_format (xcb_render_util_query_formats (c), format);
if (render_format->id == 0)
return NULL;
surface = cairo_xcb_surface_create_with_xrender_format (c, xtc->pixmap, root,
render_format,
width, height);
status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL);
if (status == CAIRO_STATUS_SUCCESS)
return surface;
cairo_surface_destroy (surface);
surface = cairo_boilerplate_surface_create_in_error (status);
_cairo_boilerplate_xcb_cleanup (xtc);
return surface;
}
static cairo_status_t
_cairo_boilerplate_xcb_finish_surface (cairo_surface_t *surface)
{
xcb_target_closure_t *xtc = cairo_surface_get_user_data (surface,
&xcb_closure_key);
xcb_generic_event_t *ev;
cairo_surface_flush (surface);
if (cairo_surface_status (surface))
return cairo_surface_status (surface);
while ((ev = xcb_poll_for_event (xtc->c)) != NULL) {
if (ev->response_type == 0 /* trust me! */) {
xcb_generic_error_t *error = (xcb_generic_error_t *) ev;
fprintf (stderr, "Detected error during xcb run: %d major=%d, minor=%d\n",
error->error_code, error->major_code, error->minor_code);
return CAIRO_STATUS_WRITE_ERROR;
}
}
if (xcb_connection_has_error (xtc->c))
return CAIRO_STATUS_WRITE_ERROR;
return CAIRO_STATUS_SUCCESS;
}
static const cairo_boilerplate_target_t targets[] = {
/* Acceleration architectures may make the results differ by a
* bit, so we set the error tolerance to 1. */
{
"xcb", "xlib", NULL, NULL,
CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR_ALPHA, 1,
"cairo_xcb_surface_create_with_xrender_format",
_cairo_boilerplate_xcb_create_surface,
NULL,
_cairo_boilerplate_xcb_finish_surface,
_cairo_boilerplate_get_image_surface,
cairo_surface_write_to_png,
_cairo_boilerplate_xcb_cleanup,
_cairo_boilerplate_xcb_synchronize
},
{
"xcb", "xlib", NULL, NULL,
CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1,
"cairo_xcb_surface_create_with_xrender_format",
_cairo_boilerplate_xcb_create_surface,
NULL,
_cairo_boilerplate_xcb_finish_surface,
_cairo_boilerplate_get_image_surface,
cairo_surface_write_to_png,
_cairo_boilerplate_xcb_cleanup,
_cairo_boilerplate_xcb_synchronize
},
};
CAIRO_BOILERPLATE (xcb, targets)
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