guacamole-spice-protocol/src/protocols/vnc/default_pointer.c

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-vnc.
*
* The Initial Developer of the Original Code is
* Michael Jumper.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* James Muehlner
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include <cairo/cairo.h>
#include <guacamole/client.h>
#include <guacamole/protocol.h>
#include <guacamole/socket.h>
/* Macros for prettying up the embedded image. */
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#define X 0x00,0x00,0x00,0xFF
#define O 0xFF,0xFF,0xFF,0xFF
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#define _ 0x00,0x00,0x00,0x00
/* Dimensions */
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const int guac_vnc_default_pointer_width = 5;
const int guac_vnc_default_pointer_height = 5;
/* Format */
const cairo_format_t guac_vnc_default_pointer_format = CAIRO_FORMAT_ARGB32;
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const int guac_vnc_default_pointer_stride = 20;
/* Embedded pointer graphic */
unsigned char guac_vnc_default_pointer[] = {
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_,O,O,O,_,
O,X,X,X,O,
O,X,X,X,O,
O,X,X,X,O,
_,O,O,O,_
};
void guac_vnc_set_default_pointer(guac_client* client) {
guac_socket* socket = client->socket;
/* Draw to buffer */
guac_layer* cursor = guac_client_alloc_buffer(client);
cairo_surface_t* graphic = cairo_image_surface_create_for_data(
guac_vnc_default_pointer,
guac_vnc_default_pointer_format,
guac_vnc_default_pointer_width,
guac_vnc_default_pointer_height,
guac_vnc_default_pointer_stride);
guac_protocol_send_png(socket, GUAC_COMP_SRC, cursor, 0, 0, graphic);
cairo_surface_destroy(graphic);
/* Set cursor */
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guac_protocol_send_cursor(socket, 2, 2, cursor,
0, 0,
guac_vnc_default_pointer_width,
guac_vnc_default_pointer_height);
/* Free buffer */
guac_client_free_buffer(client, cursor);
}