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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3959 | Serge | 1 | /* cairo - a vector graphics library with display and print output |
| 2 | * |
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| 3 | * Copyright © 2009 Intel Corporation |
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| 4 | * |
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| 5 | * This library is free software; you can redistribute it and/or |
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| 6 | * modify it either under the terms of the GNU Lesser General Public |
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| 7 | * License version 2.1 as published by the Free Software Foundation |
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| 8 | * (the "LGPL") or, at your option, under the terms of the Mozilla |
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| 9 | * Public License Version 1.1 (the "MPL"). If you do not alter this |
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| 10 | * notice, a recipient may use your version of this file under either |
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| 11 | * the MPL or the LGPL. |
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| 12 | * |
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| 13 | * You should have received a copy of the LGPL along with this library |
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| 14 | * in the file COPYING-LGPL-2.1; if not, write to the Free Software |
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| 15 | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA |
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| 16 | * You should have received a copy of the MPL along with this library |
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| 17 | * in the file COPYING-MPL-1.1 |
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| 18 | * |
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| 19 | * The contents of this file are subject to the Mozilla Public License |
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| 20 | * Version 1.1 (the "License"); you may not use this file except in |
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| 21 | * compliance with the License. You may obtain a copy of the License at |
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| 22 | * http://www.mozilla.org/MPL/ |
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| 23 | * |
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| 24 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY |
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| 25 | * OF ANY KIND, either express or implied. See the LGPL or the MPL for |
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| 26 | * the specific language governing rights and limitations. |
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| 27 | * |
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| 28 | * Contributor(s): |
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| 29 | * Chris Wilson |
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| 30 | */ |
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| 31 | |||
| 32 | #include "cairoint.h" |
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| 33 | |||
| 34 | #if CAIRO_HAS_XCB_SHM_FUNCTIONS |
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| 35 | |||
| 36 | #include "cairo-xcb-private.h" |
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| 37 | |||
| 38 | #include |
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| 39 | #include |
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| 40 | |||
| 41 | uint32_t |
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| 42 | _cairo_xcb_connection_shm_attach (cairo_xcb_connection_t *connection, |
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| 43 | uint32_t id, |
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| 44 | cairo_bool_t readonly) |
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| 45 | { |
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| 46 | uint32_t segment = _cairo_xcb_connection_get_xid (connection); |
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| 47 | assert (connection->flags & CAIRO_XCB_HAS_SHM); |
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| 48 | xcb_shm_attach (connection->xcb_connection, segment, id, readonly); |
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| 49 | return segment; |
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| 50 | } |
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| 51 | |||
| 52 | void |
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| 53 | _cairo_xcb_connection_shm_put_image (cairo_xcb_connection_t *connection, |
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| 54 | xcb_drawable_t dst, |
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| 55 | xcb_gcontext_t gc, |
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| 56 | uint16_t total_width, |
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| 57 | uint16_t total_height, |
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| 58 | int16_t src_x, |
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| 59 | int16_t src_y, |
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| 60 | uint16_t width, |
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| 61 | uint16_t height, |
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| 62 | int16_t dst_x, |
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| 63 | int16_t dst_y, |
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| 64 | uint8_t depth, |
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| 65 | uint32_t shm, |
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| 66 | uint32_t offset) |
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| 67 | { |
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| 68 | assert (connection->flags & CAIRO_XCB_HAS_SHM); |
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| 69 | xcb_shm_put_image (connection->xcb_connection, dst, gc, total_width, total_height, |
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| 70 | src_x, src_y, width, height, dst_x, dst_y, depth, |
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| 71 | XCB_IMAGE_FORMAT_Z_PIXMAP, 0, shm, offset); |
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| 72 | } |
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| 73 | |||
| 74 | cairo_status_t |
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| 75 | _cairo_xcb_connection_shm_get_image (cairo_xcb_connection_t *connection, |
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| 76 | xcb_drawable_t src, |
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| 77 | int16_t src_x, |
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| 78 | int16_t src_y, |
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| 79 | uint16_t width, |
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| 80 | uint16_t height, |
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| 81 | uint32_t shmseg, |
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| 82 | uint32_t offset) |
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| 83 | { |
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| 84 | xcb_shm_get_image_reply_t *reply; |
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| 85 | xcb_generic_error_t *error; |
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| 86 | |||
| 87 | assert (connection->flags & CAIRO_XCB_HAS_SHM); |
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| 88 | reply = xcb_shm_get_image_reply (connection->xcb_connection, |
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| 89 | xcb_shm_get_image (connection->xcb_connection, |
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| 90 | src, |
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| 91 | src_x, src_y, |
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| 92 | width, height, |
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| 93 | (uint32_t) -1, |
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| 94 | XCB_IMAGE_FORMAT_Z_PIXMAP, |
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| 95 | shmseg, offset), |
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| 96 | &error); |
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| 97 | free (reply); |
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| 98 | |||
| 99 | if (error) { |
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| 100 | /* an error here should be impossible */ |
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| 101 | free (error); |
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| 102 | return _cairo_error (CAIRO_STATUS_READ_ERROR); |
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| 103 | } |
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| 104 | |||
| 105 | return CAIRO_STATUS_SUCCESS; |
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| 106 | } |
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| 107 | |||
| 108 | void |
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| 109 | _cairo_xcb_connection_shm_detach (cairo_xcb_connection_t *connection, |
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| 110 | uint32_t segment) |
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| 111 | { |
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| 112 | assert (connection->flags & CAIRO_XCB_HAS_SHM); |
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| 113 | xcb_shm_detach (connection->xcb_connection, segment); |
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| 114 | _cairo_xcb_connection_put_xid (connection, segment); |
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| 115 | } |
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| 116 | |||
| 117 | #endif /* CAIRO_HAS_XCB_SHM_FUNCTIONS */ |