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

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/*
* Copyright (C) 2013 Glyptodon LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
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#include "config.h"
#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);
}