/* * Copyright (c) 2001, Adam Dunkels. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote * products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This file is part of the uIP TCP/IP stack. * * */ #ifndef VNC_SERVER_H_ #define VNC_SERVER_H_ /*struct vnc_server_updatearea { uint8_t active; uint8_t x, y; uint8_t w, h; };*/ struct vnc_server_update { struct vnc_server_update *next; #define VNC_SERVER_UPDATE_NONE 0 #define VNC_SERVER_UPDATE_PARTS 1 #define VNC_SERVER_UPDATE_FULL 2 uint8_t type; uint8_t x, y; uint8_t w, h; }; struct vnc_server_state { uint16_t counter; uint8_t type; uint8_t state; uint16_t height, width; uint8_t update_requested; /* Variables used when sending screen updates. */ uint8_t x, y, x1, y1, x2, y2; uint8_t w, h; uint16_t readlen; uint8_t sendmsg; uint8_t button; struct vnc_server_update *updates_current; struct vnc_server_update *updates_pending; struct vnc_server_update *updates_free; #define VNC_SERVER_MAX_UPDATES 8 struct vnc_server_update updates_pool[VNC_SERVER_MAX_UPDATES]; }; struct vnc_server_update * vnc_server_update_alloc(struct vnc_server_state *vs); void vnc_server_update_free(struct vnc_server_state *vs, struct vnc_server_update *a); void vnc_server_update_remove(struct vnc_server_state *vs, struct vnc_server_update *a); void vnc_server_update_add(struct vnc_server_state *vs, struct vnc_server_update *a); struct vnc_server_update * vnc_server_update_dequeue(struct vnc_server_state *vs); void vnc_server_init(void); void vnc_server_appcall(struct vnc_server_state *state); extern struct vnc_server_state *vs; enum { VNC_DEALLOCATED, VNC_VERSION, VNC_VERSION2, VNC_AUTH, VNC_AUTH2, VNC_INIT, VNC_INIT2, VNC_RUNNING }; /* Sendmsg */ enum { SEND_NONE, SEND_BLANK, SENT_BLANK, SEND_SCREEN, SEND_UPDATE }; /* Definitions of the RFB (Remote Frame Buffer) protocol structures and constants. */ #include "contiki-net.h" void vnc_server_send_data(struct vnc_server_state *vs); uint8_t vnc_server_draw_rect(uint8_t *ptr, uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint8_t c); /* Generic rectangle - x, y coordinates, width and height. */ struct rfb_rect { uint16_t x; uint16_t y; uint16_t w; uint16_t h; }; /* Pixel format definition. */ struct rfb_pixel_format { uint8_t bps; /* Bits per pixel: 8, 16 or 32. */ uint8_t depth; /* Color depth: 8-32 */ uint8_t endian; /* 1 - big endian (motorola), 0 - little endian (x86) */ uint8_t truecolor; /* 1 - true color is used, 0 - true color is not used. */ /* The following fields are only used if true color is used. */ uint16_t red_max, green_max, blue_max; uint8_t red_shift, green_shift, blue_shift; uint8_t pad1; uint16_t pad2; }; /* RFB authentication constants. */ #define RFB_AUTH_FAILED 0 #define RFB_AUTH_NONE 1 #define RFB_AUTH_VNC 2 #define RFB_VNC_AUTH_OK 0 #define RFB_VNC_AUTH_FAILED 1 #define RFB_VNC_AUTH_TOOMANY 2 /* RFB message types. */ /* From server to client: */ #define RFB_FB_UPDATE 0 #define RFB_SET_COLORMAP_ENTRIES 1 #define RFB_BELL 2 #define RFB_SERVER_CUT_TEXT 3 /* From client to server. */ #define RFB_SET_PIXEL_FORMAT 0 #define RFB_FIX_COLORMAP_ENTRIES 1 #define RFB_SET_ENCODINGS 2 #define RFB_FB_UPDATE_REQ 3 #define RFB_KEY_EVENT 4 #define RFB_POINTER_EVENT 5 #define RFB_CLIENT_CUT_TEXT 6 /* Encoding types. */ #define RFB_ENC_RAW 0 #define RFB_ENC_COPYRECT 1 #define RFB_ENC_RRE 2 #define RFB_ENC_CORRE 3 #define RFB_ENC_HEXTILE 4 /* Message definitions. */ /* Server to client messages. */ struct rfb_server_init { uint16_t width; uint16_t height; struct rfb_pixel_format format; uint8_t namelength[4]; /* Followed by name. */ }; struct rfb_fb_update { uint8_t type; uint8_t pad; uint16_t rects; /* Number of rectanges (struct rfb_fb_update_rect_hdr + data) that follows. */ }; struct rfb_fb_update_rect_hdr { struct rfb_rect rect; uint8_t encoding[4]; }; struct rfb_copy_rect { uint16_t srcx; uint16_t srcy; }; struct rfb_rre_hdr { uint16_t subrects[2]; /* Number of subrectangles (struct rfb_rre_subrect) to follow. */ uint8_t bgpixel; }; struct rfb_rre_subrect { uint8_t pixel; struct rfb_rect rect; }; struct rfb_corre_rect { uint8_t x; uint8_t y; uint8_t w; uint8_t h; }; /* Client to server messages. */ struct rfb_set_pixel_format { uint8_t type; uint8_t pad; uint16_t pad2; struct rfb_pixel_format format; }; struct rfb_fix_colormap_entries { uint8_t type; uint8_t pad; uint16_t firstcolor; uint16_t colors; }; struct rfb_set_encoding { uint8_t type; uint8_t pad; uint16_t encodings; }; struct rfb_fb_update_request { uint8_t type; uint8_t incremental; uint16_t x; uint16_t y; uint16_t w; uint16_t h; }; struct rfb_key_event { uint8_t type; uint8_t down; uint16_t pad; uint8_t key[4]; }; #define RFB_BUTTON_MASK1 1 #define RFB_BUTTON_MASK2 2 #define RFB_BUTTON_MASK3 4 struct rfb_pointer_event { uint8_t type; uint8_t buttonmask; uint16_t x; uint16_t y; }; struct rfb_client_cut_text { uint8_t type; uint8_t pad[3]; uint8_t len[4]; }; #endif /* VNC_SERVER_H_ */