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/* cairo - a vector graphics library with display and print output
*
* Copyright © 2009 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* Contributor(s):
* Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairoint.h"
#if CAIRO_HAS_XCB_SHM_FUNCTIONS
#include "cairo-xcb-private.h"
#include <xcb/xcbext.h>
#include <xcb/shm.h>
uint32_t
_cairo_xcb_connection_shm_attach (cairo_xcb_connection_t *connection,
uint32_t id,
cairo_bool_t readonly)
{
uint32_t segment = _cairo_xcb_connection_get_xid (connection);
assert (connection->flags & CAIRO_XCB_HAS_SHM);
xcb_shm_attach (connection->xcb_connection, segment, id, readonly);
return segment;
}
void
_cairo_xcb_connection_shm_put_image (cairo_xcb_connection_t *connection,
xcb_drawable_t dst,
xcb_gcontext_t gc,
uint16_t total_width,
uint16_t total_height,
int16_t src_x,
int16_t src_y,
uint16_t width,
uint16_t height,
int16_t dst_x,
int16_t dst_y,
uint8_t depth,
uint32_t shm,
uint32_t offset)
{
assert (connection->flags & CAIRO_XCB_HAS_SHM);
xcb_shm_put_image (connection->xcb_connection, dst, gc, total_width, total_height,
src_x, src_y, width, height, dst_x, dst_y, depth,
XCB_IMAGE_FORMAT_Z_PIXMAP, 0, shm, offset);
}
cairo_status_t
_cairo_xcb_connection_shm_get_image (cairo_xcb_connection_t *connection,
xcb_drawable_t src,
int16_t src_x,
int16_t src_y,
uint16_t width,
uint16_t height,
uint32_t shmseg,
uint32_t offset)
{
xcb_shm_get_image_reply_t *reply;
assert (connection->flags & CAIRO_XCB_HAS_SHM);
reply = xcb_shm_get_image_reply (connection->xcb_connection,
xcb_shm_get_image (connection->xcb_connection,
src,
src_x, src_y,
width, height,
(uint32_t) -1,
XCB_IMAGE_FORMAT_Z_PIXMAP,
shmseg, offset),
NULL);
free (reply);
if (!reply) {
/* an error here should be impossible */
return _cairo_error (CAIRO_STATUS_READ_ERROR);
}
return CAIRO_STATUS_SUCCESS;
}
void
_cairo_xcb_connection_shm_detach (cairo_xcb_connection_t *connection,
uint32_t segment)
{
assert (connection->flags & CAIRO_XCB_HAS_SHM);
xcb_shm_detach (connection->xcb_connection, segment);
_cairo_xcb_connection_put_xid (connection, segment);
}
#endif /* CAIRO_HAS_XCB_SHM_FUNCTIONS */