| /* 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" |
| |
| #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); |
| 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) |
| { |
| 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; |
| xcb_generic_error_t *error; |
| |
| 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), |
| &error); |
| free (reply); |
| |
| if (error) { |
| /* an error here should be impossible */ |
| free (error); |
| 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) |
| { |
| xcb_shm_detach (connection->xcb_connection, segment); |
| _cairo_xcb_connection_put_xid (connection, segment); |
| } |