Add pointer cursor.

This commit is contained in:
Michael Jumper 2014-01-02 12:17:08 -08:00
parent c4518c7781
commit 7643d61c7e
3 changed files with 158 additions and 0 deletions

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@ -32,6 +32,7 @@ libguac_client_vnc_la_SOURCES = \
convert.c \
dot_cursor.c \
guac_handlers.c \
pointer_cursor.c \
vnc_handlers.c
noinst_HEADERS = \
@ -39,6 +40,7 @@ noinst_HEADERS = \
convert.h \
dot_cursor.h \
guac_handlers.h \
pointer_cursor.h \
vnc_handlers.h
# Optional PulseAudio support

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@ -0,0 +1,92 @@
/*
* 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.
*/
#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. */
#define X 0x00,0x00,0x00,0xFF
#define O 0xFF,0xFF,0xFF,0xFF
#define _ 0x00,0x00,0x00,0x00
/* Dimensions */
const int guac_vnc_pointer_cursor_width = 11;
const int guac_vnc_pointer_cursor_height = 16;
/* Format */
const cairo_format_t guac_vnc_pointer_cursor_format = CAIRO_FORMAT_ARGB32;
const int guac_vnc_pointer_cursor_stride = 44;
/* Embedded pointer graphic */
unsigned char guac_vnc_pointer_cursor[] = {
O,_,_,_,_,_,_,_,_,_,_,
O,O,_,_,_,_,_,_,_,_,_,
O,X,O,_,_,_,_,_,_,_,_,
O,X,X,O,_,_,_,_,_,_,_,
O,X,X,X,O,_,_,_,_,_,_,
O,X,X,X,X,O,_,_,_,_,_,
O,X,X,X,X,X,O,_,_,_,_,
O,X,X,X,X,X,X,O,_,_,_,
O,X,X,X,X,X,X,X,O,_,_,
O,X,X,X,X,X,X,X,X,O,_,
O,X,X,X,X,X,O,O,O,O,O,
O,X,X,O,X,X,O,_,_,_,_,
O,X,O,_,O,X,X,O,_,_,_,
O,O,_,_,O,X,X,O,_,_,_,
O,_,_,_,_,O,X,X,O,_,_,
_,_,_,_,_,O,O,O,O,_,_
};
void guac_vnc_set_pointer_cursor(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_pointer_cursor,
guac_vnc_pointer_cursor_format,
guac_vnc_pointer_cursor_width,
guac_vnc_pointer_cursor_height,
guac_vnc_pointer_cursor_stride);
guac_protocol_send_png(socket, GUAC_COMP_SRC, cursor, 0, 0, graphic);
cairo_surface_destroy(graphic);
/* Set cursor */
guac_protocol_send_cursor(socket, 0, 0, cursor,
0, 0,
guac_vnc_pointer_cursor_width,
guac_vnc_pointer_cursor_height);
/* Free buffer */
guac_client_free_buffer(client, cursor);
}

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@ -0,0 +1,64 @@
/*
* 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.
*/
#ifndef _GUAC_VNC_POINTER_CURSOR_H
#define _GUAC_VNC_POINTER_CURSOR_H
#include "config.h"
#include <cairo/cairo.h>
#include <guacamole/client.h>
/**
* Width of the embedded mouse cursor graphic.
*/
extern const int guac_vnc_pointer_cursor_width;
/**
* Height of the embedded mouse cursor graphic.
*/
extern const int guac_vnc_pointer_cursor_height;
/**
* Number of bytes in each row of the embedded mouse cursor graphic.
*/
extern const int guac_vnc_pointer_cursor_stride;
/**
* The Cairo grapic format of the mouse cursor graphic.
*/
extern const cairo_format_t guac_vnc_pointer_cursor_format;
/**
* Embedded mouse cursor graphic.
*/
extern unsigned char guac_vnc_pointer_cursor[];
/**
* Set the cursor of the remote display to the embedded cursor graphic.
*
* @param client The guac_client to send the cursor to.
*/
void guac_vnc_set_pointer_cursor(guac_client* client);
#endif