kolibrios/programs/network/vncc/vncc.asm

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                                 ;;
;; 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                                ;;
;;                                                                 ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

format binary as ""

__DEBUG__       = 1
__DEBUG_LEVEL__ = 2

BITS_PER_PIXEL  = 32            ; 8, 16, 24 or 32
SERVERADDRLEN   = 4096

use32

        org     0x0

        db      "MENUET01"      ; 8 byte id
        dd      0x01            ; header version
        dd      START           ; start of code
        dd      I_END           ; size of image
        dd      IM_END          ; memory for app
        dd      IM_END          ; esp
        dd      serveraddr, 0x0 ; I_Param , I_Path

include "../../macros.inc"
include "../../debug-fdo.inc"
include "../../proc32.inc"
include "../../dll.inc"
include "../../struct.inc"
include "../../develop/libraries/box_lib/trunk/box_lib.mac"
include "../../network.inc"

struct  PixelFormat
        bpp             db ?
        depth           db ?
        big_endian      db ?
        true_color      db ?
        red_max         dw ?
        green_max       dw ?
        blue_max        dw ?
        red_shift       db ?
        green_shift     db ?
        blue_shift      db ?
        padding         rb 3
ends

struct  ServerInit
        width           dw ?
        height          dw ?
        pixelformat     PixelFormat
        name_length     dd ?
        name            db ?
ends

xpos                    = 4
ypos                    = 21

TIMEOUT                 = 5             ; timeout in seconds

RECEIVE_BUFFER_SIZE     = 8*1024*1024   ; 8 Mib

STATUS_CONNECT          = 0
STATUS_CONNECTING       = 1
STATUS_REQ_LOGIN        = 2
STATUS_LOGIN            = 3
STATUS_CONNECTED        = 4
STATUS_CLOSED           = 5

STATUS_DISCONNECTED     = 10
STATUS_DNS_ERR          = 11
STATUS_SOCK_ERR         = 12
STATUS_CONNECT_ERR      = 13
STATUS_PROTO_ERR        = 14
STATUS_SECURITY_ERR     = 15
STATUS_LIB_ERR          = 16
STATUS_THREAD_ERR       = 17
STATUS_LOGIN_FAILED     = 18
STATUS_SECURITY_ERR_C   = 19

WORK_FRAMEBUFFER        = 1 shl 0
WORK_CURSOR             = 1 shl 1
WORK_GUI                = 1 shl 2

BYTES_PER_PIXEL = (BITS_PER_PIXEL + 7) / 8

if BITS_PER_PIXEL = 32
        BYTES_PER_CPIXEL= 3
else
        BYTES_PER_CPIXEL= BYTES_PER_PIXEL
end if

include "keymap.inc"
include "gui.inc"
include "network.inc"
include "raw.inc"
include "copyrect.inc"
include "rre.inc"
include "trle.inc"
include "zrle.inc"
include "cursor.inc"
include "des.inc"


if BITS_PER_PIXEL = 8
create_lut:
        mov     edi, lut_8bpp   ; 332 format
        xor     eax, eax
        call    green
        add     eax, 0x240000
        call    green
        add     eax, 0x250000
        call    green
        add     eax, 0x240000
        call    green
        add     eax, 0x250000
        call    green
        add     eax, 0x240000
        call    green
        add     eax, 0x250000
        call    green
        add     eax, 0x240000
        call    green
        ret

green:
        mov     ah, 0
        call    blue
        mov     ah, 36
        call    blue
        add     ah, 37
        call    blue
        add     ah, 36
        call    blue
        add     ah, 37
        call    blue
        add     ah, 36
        call    blue
        add     ah, 37
        call    blue
        add     ah, 36
        call    blue
        ret

blue:
        mov     al, 0
        stosd
        mov     al, 85
        stosd
        mov     al, 170
        stosd
        mov     al, 255
        stosd
        ret
end if


START:

        mcall   68, 11                  ; init heap

; Load libraries
        stdcall dll.Load, @IMPORT
        test    eax, eax
        jz      @f
        mov     [status], STATUS_LIB_ERR
        jmp     draw_gui.first_time
  @@:

; When using 8BPP, create lookup table
if BITS_PER_PIXEL = 8
        call    create_lut
end if

; Check if we got a server address through parameters
        cmp     byte[serveraddr], 0
        je      @f
        xor     al, al
        mov     edi, serveraddr
        mov     ecx, SERVERADDRLEN
        repne scasb
        sub     edi, serveraddr+1
        mov     [URLbox.size], edi
        mov     [URLbox.pos], edi
        call    open_connection
  @@:

; Present the user with the GUI and wait for network connection
        jmp     draw_gui.first_time

; Create main window
connected:
        mcall   71, 1, name             ; reset window caption (add server name)

        mov     edx, dword[screen]
        movzx   esi, dx
        shr     edx, 16
        add     edx, 2*xpos
        add     esi, ypos+xpos
        mcall   67, 10, 10              ; resize the window

        mcall   40, EVM_CURSOR_FILTER + EVM_MOUSE_FILTER + EVM_MOUSE + EVM_KEY + EVM_REDRAW + EVM_BUTTON

        mcall   66, 1, 1                ; Switch keyboard to scancode mode

        call    generate_keymap

redraw:
        mcall   12, 1

        mov     ebx, dword[screen]
        movzx   ecx, bx
        shr     ebx, 16
        mov     edx, 0x74ffffff
        mov     edi, name
        mcall   0                       ; draw window

        mcall   12, 2

draw_framebuffer:
        DEBUGF  1, "Drawing framebuffer\n"
        mcall   7, framebuffer, dword[screen], 0
        and     [work], not WORK_FRAMEBUFFER

mainloop:
        cmp     [status], STATUS_CONNECTED
        jne     draw_gui
        test    [work], WORK_FRAMEBUFFER
        jnz     draw_framebuffer
        test    [work], WORK_CURSOR
        jnz     update_cursor

        mcall   23, 10          ; Check for event with 0,1s timeout

        dec     eax
        jz      redraw
        dec     eax
        jz      key
        dec     eax
        jz      button
        sub     eax, 3
        jz      mouse
        jmp     mainloop

key:
        mcall   66, 3
        mov     ebx, eax        ; get modifier keys

        mcall   2               ; get key scancode
        cmp     ah, 224         ; extended keycode?
        je      .extended

        xor     al, al
        test    ah, 0x80        ; key up?
        jnz     @f
        inc     al
        and     ah, 0x7f
  @@:
        mov     byte[KeyEvent.down], al

        movzx   eax, ah

        test    ebx, 100000b    ; alt?
        jz      .no_alt
        mov     ax, [keymap_alt+eax*2]
        jmp     .key
  .no_alt:

        test    ebx, 11b        ; shift?
        jz      .no_shift
        mov     ax, [keymap_shift+eax*2]
        jmp     .key
  .no_shift:

        test    ebx, 10000000b  ; numlock ?
        jz      .no_numlock
        cmp     al, 71
        jb      .no_numlock
        cmp     al, 83
        ja      .no_numlock
        mov     ah, [keymap_numlock+eax-71]
        xor     al, al
        jmp     .key

  .extended:                    ; extended keys always use regular keymap
        mcall   2
        shr     eax, 8
        jz      mainloop

        xor     ah, ah
        test    al, 0x80        ; key up?
        jnz     @f
        inc     ah
  @@:
        mov     byte[KeyEvent.down], ah
        and     ax, 0x007f
  .no_numlock:
        mov     ax, [keymap+eax*2]
  .key:
        test    ax, ax
        jz      mainloop
        mov     word[KeyEvent.key+2], ax
        DEBUGF  1, "Sending key: 0x%x\n", ax
        mcall   send, [socketnum], KeyEvent, 8, 0
        jmp     mainloop



mouse:
;        DEBUGF  1, "Sending pointer event\n"

        mcall   37, 1           ; get mouse pos
        bswap   eax
        mov     [PointerEvent.x], ax
        shr     eax, 16
        mov     [PointerEvent.y], ax

        mcall   37, 2           ; get mouse buttons
        test    al, 00000010b   ; test if right button was pressed  (bit 1 in kolibri)
        jz      @f
        add     al, 00000010b   ; in RFB protocol it is bit 2, so if we add bit 2 again, we"ll get bit 3 and bit 1 will remain the same
      @@:
        mov     [PointerEvent.mask], al

        mcall   send, [socketnum], PointerEvent, 6, 0
        jmp     mainloop

button:
        mcall   17              ; get id
        mov     [status], STATUS_CLOSED
        mcall   close, [socketnum]
        mcall   -1


update_cursor:

; load cursor
        mov     dx, word[cursor.y]
        shl     edx, 16
        mov     dx, 2
        mcall   37, 4, cursor.image
        test    eax, eax
        jz      .fail

; set cursor
        mov     ecx, eax
        mcall   37, 5

; delete previously set cursor
        mov     ecx, eax
        mcall   37, 6

.fail:
        and     [work], not WORK_CURSOR
        jmp     mainloop


; DATA AREA

include_debug_strings

keymap_numlock:
        db      '7', '8', '9', '-'
        db      '4', '5', '6', '+'
        db      '1', '2', '3'
        db      '0', '.'

HandShake               db "RFB 003.003", 10

ClientInit              db 0            ; not shared

if BITS_PER_PIXEL = 32

SetPixelFormat          db 0            ; setPixelformat
                        db 0, 0, 0      ; padding
.bpp                    db 32           ; bits per pixel
.depth                  db 24           ; depth
.big_endian             db 0            ; big-endian flag
.true_color             db 1            ; true-colour flag
.red_max                db 0, 255       ; red-max
.green_max              db 0, 255       ; green-max
.blue_max               db 0, 255       ; blue-max
.red_shift              db 16           ; red-shift
.green_shift            db 8            ; green-shift
.blue_shift             db 0            ; blue-shift
                        db 0, 0, 0      ; padding

else if BITS_PER_PIXEL = 24

SetPixelFormat          db 0            ; setPixelformat
                        db 0, 0, 0      ; padding
.bpp                    db 24           ; bits per pixel
.depth                  db 24           ; depth
.big_endian             db 0            ; big-endian flag
.true_color             db 1            ; true-colour flag
.red_max                db 0, 255       ; red-max
.green_max              db 0, 255       ; green-max
.blue_max               db 0, 255       ; blue-max
.red_shift              db 16           ; red-shift
.green_shift            db 8            ; green-shift
.blue_shift             db 0            ; blue-shift
                        db 0, 0, 0      ; padding

else if BITS_PER_PIXEL = 16

SetPixelFormat          db 0            ; setPixelformat
                        db 0, 0, 0      ; padding
.bpp                    db 16           ; bits per pixel
.depth                  db 16           ; depth
.big_endian             db 0            ; big-endian flag
.true_color             db 1            ; true-colour flag
.red_max                db 0, 31        ; red-max
.green_max              db 0, 63        ; green-max
.blue_max               db 0, 31        ; blue-max
.red_shift              db 11           ; red-shift
.green_shift            db 5            ; green-shift
.blue_shift             db 0            ; blue-shift
                        db 0, 0, 0      ; padding

else if BITS_PER_PIXEL = 8

SetPixelFormat          db 0            ; setPixelformat
                        db 0, 0, 0      ; padding
.bpp                    db 8            ; bits per pixel
.depth                  db 8            ; depth
.big_endian             db 0            ; big-endian flag
.true_color             db 1            ; true-colour flag
.red_max                db 0, 7         ; red-max
.green_max              db 0, 7         ; green-max
.blue_max               db 0, 3         ; blue-max
.red_shift              db 5            ; red-shift
.green_shift            db 2            ; green-shift
.blue_shift             db 0            ; blue-shift
                        db 0, 0, 0      ; padding

end if

SetEncodings            db 2            ; setEncodings
                        db 0            ; padding
                        db 0, 5         ; number of encodings
;                        db 0, 0, 0, 16  ; ZRLE
                        db 0, 0, 0, 15  ; TRLE
                        db 0, 0, 0, 2   ; RRE
                        db 0, 0, 0, 1   ; Copyrect encoding
                        db 0xff, 0xff, 0xff, 0x11       ; Cursor pseudo encoding
                        db 0, 0, 0, 0   ; raw encoding
  .length = $ - SetEncodings

FramebufferUpdateRequest        db 3
.inc                            db 0    ; incremental
.x                              dw 0
.y                              dw 0
.width                          dw 0
.height                         dw 0

KeyEvent                db 4            ; keyevent
.down                   db 0            ; down-flag
                        dw 0            ; padding
.key                    dd 0            ; key

PointerEvent            db 5            ; pointerevent
.mask                   db 0            ; button-mask
.x                      dw 0            ; x-position
.y                      dw 0            ; y-position


sockaddr1:
                dw AF_INET4
.port           dw 0x0c17               ; 5900
.ip             dd 0
                rb 10

beep            db 0x85, 0x25, 0x85, 0x40, 0

status                  dd STATUS_CONNECT
work                    dd 0
mouse_dd                dd 0
thread_id               dd 0

deflate_buffer          dd 0
deflate_length          dd ?
deflate_str             dd ?

URLbox          edit_box 235, 70, 20, 0xffffff, 0x6f9480, 0, 0, 0, SERVERADDRLEN, serveraddr, mouse_dd, ed_focus, 0, 0
USERbox         edit_box 215, 90, 10, 0xffffff, 0x6f9480, 0, 0, 0, 127, username, mouse_dd, ed_focus, 0, 0
PASSbox         edit_box 215, 90, 30, 0xffffff, 0x6f9480, 0, 0, 0, 127, password, mouse_dd, ed_pass, 0, 0

serverstr       db "server:"
userstr         db "username:"
passstr         db "password:"
connectstr      db "Connect"
loginstr        db "Log in"
cancelstr       db "Cancel"
okstr           db "OK"
okstr_e:

sz_err_disconnected     db "The server has closed the connection unexpectedly.", 0
sz_err_dns              db "Could not resolve hostname.", 0
sz_err_sock             db "Could not open socket.", 0
sz_err_connect          db "Could not connect to the server.", 0
sz_err_proto            db "A protocol error has occured.", 0
sz_err_security         db "An authentication problem has occured.", 0
sz_err_library          db "Could not load needed libraries.", 0
sz_err_thread           db "Could not create thread.", 0
sz_err_login_failed     db "Login failed.", 0

err_msg         dd sz_err_disconnected
                dd sz_err_dns
                dd sz_err_sock
                dd sz_err_connect
                dd sz_err_proto
                dd sz_err_security
                dd sz_err_library
                dd sz_err_thread
                dd sz_err_login_failed
                dd sz_err_security_c

; import
align 4
@IMPORT:

library network,                "network.obj",\
        box_lib,                "box_lib.obj",\
        archiver,               "archiver.obj"

import  network,\
        getaddrinfo,            "getaddrinfo",  \
        freeaddrinfo,           "freeaddrinfo", \
        inet_ntoa,              "inet_ntoa"

import  box_lib,\
        edit_box_draw,          "edit_box",\
        edit_box_key,           "edit_box_key",\
        edit_box_mouse,         "edit_box_mouse",\
        scrollbar_v_draw,       "scrollbar_v_draw",\
        scrollbar_v_mouse,      "scrollbar_v_mouse",\
        scrollbar_h_draw,       "scrollbar_h_draw",\
        scrollbar_h_mouse,      "scrollbar_h_mouse"

import  archiver,\
        deflate_unpack2,        "deflate_unpack2"

name                    db "VNC viewer "
.dash                   db 0, " "

I_END:

servername              rb 64+1

serveraddr              db 0
                        rb SERVERADDRLEN

socketnum               dd ?
datapointer             dd ?

rectangles              dw ?

rectangle:
.x                      dd ?
.y                      dd ?
.width                  dd ?
.height                 dd ?

subrectangles           dd ?

subrectangle:
.x                      dd ?
.y                      dd ?
.width                  dd ?
.height                 dd ?

screen:                 ; Remote screen resolution
.height                 dw ?
.width                  dw ?

palette                 rd 128  ; TRLE/ZRLE
palettesize             db ?    ; TRLE/ZRLE

keymap                  rw 128
keymap_shift            rw 128
keymap_alt              rw 128
username                rb 128
password                rb 128
keys                    rd 32*2 ; DES keys for VNC authentication

cursor:
.y                      db ?
.x                      db ?
.image                  rd 32*32

align 4
if BITS_PER_PIXEL = 8
lut_8bpp                rd 256
end if

sz_err_security_c       rb 512+1

receive_buffer          rb RECEIVE_BUFFER_SIZE
framebuffer             rb 1280*1024*3  ; framebuffer

                        rb 0x1000
thread_stack:
                        rb 0x1000
IM_END: