forked from KolibriOS/kolibrios
199 lines
5.4 KiB
PHP
199 lines
5.4 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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load_pixel_rre: ; returns in ecx
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push eax
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@@:
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lea eax, [esi+BYTES_PER_PIXEL]
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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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if BITS_PER_PIXEL = 8
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push ebx
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mov bl, 36
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mov al, [esi]
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and al, 7
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mul bl
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mov ch, al ; red
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mov al, [esi]
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shr al, 3
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and al, 7
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mul bl
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mov cl, al ; green
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mov bl, 85
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mov al, [esi]
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shr al, 6
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and al, 3
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mul bl
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shl ecx, 8
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mov cl, al ; blue
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inc esi
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pop ebx
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else if BITS_PER_PIXEL = 16
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lodsw
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mov cl, ah
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and al, 0xf8 ; red
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mov cx, ax
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shl cx, 5
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and ch, 0xfc ; green
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shl ecx, 8
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mov cl, al
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shl cl, 3
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and cx, 0x00f8 ; blue
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else if BITS_PER_PIXEL = 24
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mov ecx, [esi]
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and ecx, 0x00ffffff
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add esi, 3
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else if BITS_PER_PIXEL = 32
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mov ecx, [esi]
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and ecx, 0x00ffffff
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add esi, 4
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end if
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pop eax
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ret
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encoding_RRE:
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DEBUGF 1,"RRE\n"
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@@:
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lea eax, [esi+4+BYTES_PER_PIXEL]
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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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lodsd
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bswap eax
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mov [subrectangles], eax
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DEBUGF 1, "%u subrectangles\n", eax
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; Get background color
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call load_pixel_rre
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; Calculate first pixel pos
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movzx eax, [screen.width]
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mul [rectangle.y] ; [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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; Calculate offset between two rows of pixels
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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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; Draw background rectangle
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push edi
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mov eax, ecx
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mov edx, [rectangle.height]
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.lineloop:
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mov ecx, [rectangle.width]
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.pixelloop:
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stosw
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rol eax, 16
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stosb
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rol eax, 16
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dec ecx
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jnz .pixelloop
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add edi, ebp
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dec edx
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jnz .lineloop
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pop edi
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; Any subrectangles at all?
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cmp [subrectangles], 0
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je next_rectangle
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.subrectangle:
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@@:
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lea eax, [esi+8+BYTES_PER_PIXEL]
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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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; Get subrectangle color
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call load_pixel_rre
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; Get coordinates
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xor eax, eax
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lodsw
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xchg al, ah
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mov [subrectangle.x], eax
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lodsw
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xchg al, ah
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mov [subrectangle.y], eax
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lodsw
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xchg al, ah
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mov [subrectangle.width], eax
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lodsw
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xchg al, ah
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mov [subrectangle.height], eax
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DEBUGF 1, "Subrectangle: x=%u y=%u width=%u height=%u\n", \
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[subrectangle.x], [subrectangle.y], [subrectangle.width], [subrectangle.height]
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; Calculate pos of first pixel
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push edi
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movzx eax, [screen.width]
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mul [subrectangle.y]
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add eax, [subrectangle.x]
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lea eax, [eax*3]
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add edi, eax
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; Calculate offset between two rows of pixels
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movzx eax, [screen.width]
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sub eax, [subrectangle.width]
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lea ebp, [eax*3] ; ebp = ([screen.width]-[rectangle.width])*3
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; Draw the subrectangle
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mov eax, ecx
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mov edx, [subrectangle.height]
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.lineloop2:
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mov ecx, [subrectangle.width]
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.pixelloop2:
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stosw
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rol eax, 16
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stosb
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rol eax, 16
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dec ecx
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jnz .pixelloop2
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add edi, ebp
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dec edx
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jnz .lineloop2
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pop edi
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dec [subrectangles]
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jnz .subrectangle
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jmp next_rectangle |