kolibrios/programs/network/vncc/copyrect.inc
hidnplayr 21ae92e9fb VNC client: added CopyRect encoding.
git-svn-id: svn://kolibrios.org@5666 a494cfbc-eb01-0410-851d-a64ba20cac60
2015-08-03 13:13:09 +00:00

80 lines
2.9 KiB
PHP

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; 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 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
encoding_copyrect:
DEBUGF 1,"CopyRect\n"
@@:
lea eax, [esi+4]
cmp [datapointer], eax
jae @f
call read_data.more
jmp @b
@@:
push esi
movzx eax, word[esi+2] ; [src.y]
xchg al, ah
movzx ebx, [screen.width]
mul ebx ; [screen.width]*[src.y]
movzx ebx, word[esi] ; [src.x]
xchg bl, bh
add eax, ebx ; [screen.width]*[src.y]+[src.x]
lea esi, [framebuffer_data+eax*3] ; esi = framebuffer_data+([screen.width]*[src.y]+[src.x])*3
movzx eax, [rectangle.y]
movzx ebx, [screen.width]
mul ebx ; [screen.width]*[rectangle.y]
movzx ebx, [rectangle.x]
add eax, ebx ; [screen.width]*[rectangle.y]+[rectangle.x]
lea edi, [framebuffer_data+eax*3] ; edi = framebuffer_data+([screen.width]*[rectangle.y]+[rectangle.x])*3
movzx eax, [screen.width]
sub ax, [rectangle.width]
lea ebp, [eax*3] ; ebp = ([screen.width]-[rectangle.width])*3
cmp esi, edi
ja .copy
; source pixels come before destination in buffer, copy backwards
movzx eax, [rectangle.height]
movzx edx, [screen.width]
mul edx
lea eax, [eax*3-1]
add esi, eax
add edi, eax
neg ebp
std
.copy:
movzx edx, [rectangle.height]
movzx ecx, [rectangle.width]
lea ecx, [ecx*3]
.lineloop:
push ecx
rep movsb
pop ecx
add esi, ebp
add edi, ebp
dec edx
jnz .lineloop
pop esi
add esi, 4
cld
jmp next_rectangle