/* 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 = xcb_generate_id (connection->xcb_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);
}
#endif /* CAIRO_HAS_XCB_SHM_FUNCTIONS */
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