;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2010-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; VNC client for KolibriOS ;;
;; ;;
;; Written by hidnplayr@kolibrios.org ;;
;; ;;
;; GNU GENERAL PUBLIC LICENSE ;;
;; Version 2, June 1991 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
thread_start:
DEBUGF 1, "I am the thread!\n"
mcall 40, 0 ; disable all events
; resolve name
push esp ; reserve stack place
invoke getaddrinfo, serveraddr, 0, 0, esp
pop esi
; test for error
test eax, eax
jnz exit
mov eax, [esi+addrinfo.ai_addr]
mov eax, [eax+sockaddr_in.sin_addr]
mov [sockaddr1.ip], eax
DEBUGF 1, "Connecting to %u.%u.%u.%u:%u\n", \
[sockaddr1.ip]:1, [sockaddr1.ip+1]:1, \
[sockaddr1.ip+2]:1, [sockaddr1.ip+3]:1, \
[sockaddr1.port]:2
mcall socket, AF_INET4, SOCK_STREAM, 0
test eax, eax
jz exit
;;; invoke freeaddrinfo, ??
mov [socketnum], eax
mcall connect, [socketnum], sockaddr1, 18
;;; test eax, eax
; TODO: implement timeout
call wait_for_data
cmp dword[receive_buffer], "RFB "
jne no_rfb
DEBUGF 1, "received: %s\n", receive_buffer
mcall send, [socketnum], handshake, 12, 0
DEBUGF 1, "Sending handshake: protocol version\n"
call wait_for_data
cmp dword[receive_buffer], 0x00000000
je invalid_security
cmp dword[receive_buffer], 0x01000000
je no_security
cmp dword[receive_buffer], 0x02000000
je vnc_security
DEBUGF 1, "Unknown security type\n"
jmp exit
vnc_security:
mov byte[mode], 1
call logon
no_security:
mcall send, [socketnum], ClientInit, 1, 0
DEBUGF 1, "ClientInit sent\n"
call wait_for_data ; now the server should send init message
DEBUGF 1, "Serverinit: bpp: %u depth: %u bigendian: %u truecolor: %u\n", \
[receive_buffer+framebuffer.pixelformat.bpp]:1, \
[receive_buffer+framebuffer.pixelformat.depth]:1, \
[receive_buffer+framebuffer.pixelformat.big_endian]:1, \
[receive_buffer+framebuffer.pixelformat.true_color]:1
mov eax, dword[receive_buffer+framebuffer.width]
mov dword[fbur.width], eax
bswap eax
mov dword[screen], eax
DEBUGF 1, "Screen width=%u, height=%u\n", [screen.width]:2, [screen.height]:2
mcall send, [socketnum], pixel_format8, 20, 0
DEBUGF 1, "Sending pixel format\n"
mcall send, [socketnum], encodings, 12, 0
DEBUGF 1, "Sending encoding info\n"
mov [thread_ready], 1
; Request initial update
mov [fbur.inc], 0
request_fbu:
DEBUGF 1, "Requesting framebuffer update\n"
mcall send, [socketnum], fbur, 10, 0
mov [fbur.inc], 1
thread_loop:
call read_data ; Read the data into the buffer
lodsb
cmp al, 0
je framebufferupdate
cmp al, 1
je setcolourmapentries
cmp al, 2
je bell
cmp al, 3
je servercuttext
DEBUGF 1, "Unknown server command: %u\n", al
jmp thread_loop
framebufferupdate:
@@:
lea eax, [esi+6]
cmp [datapointer], eax
jae @f
call read_data.more
jmp @b
@@:
inc esi ; padding
lodsw
xchg al, ah
mov [rectangles], ax
DEBUGF 1, "Framebufferupdate: %u rectangles\n", ax
rectangle_loop:
@@:
lea eax, [esi+12]
cmp [datapointer], eax
jae @f
call read_data.more
jmp @b
@@:
lodsd ; position
bswap eax
mov [rectangle.y], ax
shr eax, 16
mov [rectangle.x], ax
lodsd ; size
bswap eax
mov [rectangle.height], ax
shr eax, 16
mov [rectangle.width], ax
lodsd ; encoding
DEBUGF 1, "rectangle: width=%u height=%u x=%u y=%u encoding: ",\
[rectangle.width]:2, [rectangle.height]:2, [rectangle.x]:2, [rectangle.y]:2
cmp eax, 0
je encoding_raw
cmp eax, 1
je encoding_copyrect
; cmp eax, 2
; je encoding_RRE
; cmp eax, 5
; je encoding_hextile
; cmp eax, 15
; je encoding_TRLE
; cmp eax, 16
; je encoding_ZRLE
DEBUGF 1, "\nunknown encoding: %u\n", eax
jmp thread_loop
;; jmp rectangle_loop
next_rectangle:
push esi
call drawbuffer
pop esi
dec [rectangles]
jnz rectangle_loop
jmp request_fbu
setcolourmapentries:
DEBUGF 1, "Server sent SetColourMapEntries message\n"
; TODO
jmp thread_loop
bell:
mcall 55, 55, , , beep
jmp thread_loop
servercuttext:
DEBUGF 1, "Server cut text\n"
@@:
lea eax, [esi+7]
cmp [datapointer], eax
jae @f
call read_data.more
jmp @b
@@:
add esi, 3
lodsd
bswap eax
mov ecx, eax
@@:
lea eax, [esi+ecx]
cmp [datapointer], eax
jae @f
call read_data.more
jmp @b
@@:
; TODO: paste text to clipboard
DEBUGF 1, "%u bytes of text\n", ecx
add esi, ecx
jmp thread_loop
read_data:
mov [datapointer], receive_buffer
mov esi, receive_buffer
.more:
push ebx ecx edx esi edi
mcall recv, [socketnum], [datapointer], 4096, 0
pop edi esi edx ecx ebx
cmp eax, -1
je .error
add [datapointer], eax ; TODO: check for buffer overflow
cmp eax, 4096
je .more
ret
.error:
DEBUGF 1, "Socket error!\n"
mcall -1
ret
wait_for_data: ; FIXME: add timeout
mcall recv, [socketnum], receive_buffer, 4096, 0
cmp eax, -1
je .error
test eax, eax
jz wait_for_data
ret
.error:
DEBUGF 1, "Socket error!\n"
mcall -1
ret