mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-02 21:37:34 +03:00
85 lines
3.2 KiB
PHP
85 lines
3.2 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2010-2015. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; VNC client for KolibriOS ;;
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;; ;;
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;; Written by hidnplayr@kolibrios.org ;;
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;; ;;
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;; GNU GENERAL PUBLIC LICENSE ;;
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;; Version 2, June 1991 ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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encoding_CopyRect:
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DEBUGF 1,"CopyRect\n"
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@@:
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lea eax, [esi+4]
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cmp [datapointer], eax
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jae @f
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call read_data.more
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jmp @b
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@@:
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push esi
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movzx eax, word[esi+2] ; [src.y]
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xchg al, ah
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movzx ebx, [screen.width]
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mul ebx ; [screen.width]*[src.y]
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movzx ebx, word[esi] ; [src.x]
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xchg bl, bh
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add eax, ebx ; [screen.width]*[src.y]+[src.x]
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lea esi, [framebuffer+eax*3] ; esi = framebuffer_data+([screen.width]*[src.y]+[src.x])*3
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mov eax, [rectangle.y]
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movzx ebx, [screen.width]
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mul ebx ; [screen.width]*[rectangle.y]
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add eax, [rectangle.x] ; [screen.width]*[rectangle.y]+[rectangle.x]
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lea edi, [framebuffer+eax*3] ; edi = framebuffer_data+([screen.width]*[rectangle.y]+[rectangle.x])*3
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movzx eax, [screen.width]
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sub eax, [rectangle.width]
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lea ebp, [eax*3] ; ebp = ([screen.width]-[rectangle.width])*3
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cmp esi, edi
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ja .not_backwards
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; Source pixels come before destination in buffer, copy backwards.
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DEBUGF 1,"backwards\n"
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mov eax, [rectangle.height]
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dec eax
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movzx edx, [screen.width]
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mul edx
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add eax, [rectangle.width]
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lea eax, [eax*3-1] ; eax = (([rectangle.height]-1)*[screen.width]+[rectangle.width])*3-1
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add esi, eax
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add edi, eax
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neg ebp
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std
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.not_backwards:
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; Do the actual copying
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mov eax, [rectangle.width]
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lea eax, [eax*3]
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mov ebx, eax
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and eax, 11b
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shr ebx, 2
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mov edx, [rectangle.height]
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.lineloop:
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mov ecx, eax
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rep movsb
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mov ecx, ebx
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rep movsd
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add esi, ebp
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add edi, ebp
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dec edx
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jnz .lineloop
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pop esi
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add esi, 4
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cld
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jmp next_rectangle |