;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; 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 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
pixel_to_24bpp: ; returns in ecx
if BITS_PER_PIXEL = 8
push eax ebx
mov bl, 36
mov al, [esi]
and al, 7
mul bl
mov ch, al ; red
mov al, [esi]
shr al, 3
and al, 7
mul bl
mov cl, al ; green
mov bl, 85
mov al, [esi]
shr al, 6
and al, 3
mul bl
shl ecx, 8
mov cl, al ; blue
inc esi
pop ebx eax
else if BITS_PER_PIXEL = 16
push eax
lodsw
mov cl, ah
and al, 0xf8 ; red
mov cx, ax
shl cx, 5
and ch, 0xfc ; green
shl ecx, 8
mov cl, al
shl cl, 3
and cx, 0x00f8 ; blue
pop eax
else
xor ecx, ecx
mov cx, [esi]
shl ecx, 8
mov cl, [esi+2]
add esi, 3
end if
ret
encoding_RRE:
DEBUGF 1,"RRE\n"
@@:
lea eax, [esi+4+BYTES_PER_PIXEL]
cmp [datapointer], eax
jae @f
call read_data.more
jmp @b
@@:
lodsd
bswap eax
mov [subrectangles], eax
DEBUGF 1, "%u subrectangles\n", eax
; Get background color
call pixel_to_24bpp
; Calculate first pixel pos
movzx eax, [screen.width]
mul [rectangle.y] ; [screen.width]*[rectangle.y]
add eax, [rectangle.x] ; [screen.width]*[rectangle.y]+[rectangle.x]
lea edi, [framebuffer_data+eax*3] ; edi = framebuffer_data+([screen.width]*[rectangle.y]+[rectangle.x])*3
; Calculate offset between two rows of pixels
movzx eax, [screen.width]
sub eax, [rectangle.width]
lea ebp, [eax*3] ; ebp = ([screen.width]-[rectangle.width])*3
; Draw background rectangle
push edi
mov eax, ecx
mov edx, [rectangle.height]
.lineloop:
mov ecx, [rectangle.width]
.pixelloop:
stosw
rol eax, 16
stosb
rol eax, 16
dec ecx
jnz .pixelloop
add edi, ebp
dec edx
jnz .lineloop
pop edi
; Any subrectangles at all?
cmp [subrectangles], 0
je next_rectangle
.subrectangle:
@@:
lea eax, [esi+8+BYTES_PER_PIXEL]
cmp [datapointer], eax
jae @f
call read_data.more
jmp @b
@@:
; Get subrectangle color
call pixel_to_24bpp
; Get coordinates
xor eax, eax
lodsw
xchg al, ah
mov [subrectangle.x], eax
lodsw
xchg al, ah
mov [subrectangle.y], eax
lodsw
xchg al, ah
mov [subrectangle.width], eax
lodsw
xchg al, ah
mov [subrectangle.height], eax
DEBUGF 1, "Subrectangle: x=%u y=%u width=%u height=%u\n", \
[subrectangle.x], [subrectangle.y], [subrectangle.width], [subrectangle.height]
; Calculate pos of first pixel
push edi
movzx eax, [screen.width]
mul [subrectangle.y]
add eax, [subrectangle.x]
lea eax, [eax*3]
add edi, eax
; Calculate offset between two rows of pixels
movzx eax, [screen.width]
sub eax, [subrectangle.width]
lea ebp, [eax*3] ; ebp = ([screen.width]-[rectangle.width])*3
; Draw the subrectangle
mov eax, ecx
mov edx, [subrectangle.height]
.lineloop2:
mov ecx, [subrectangle.width]
.pixelloop2:
stosw
rol eax, 16
stosb
rol eax, 16
dec ecx
jnz .pixelloop2
add edi, ebp
dec edx
jnz .lineloop2
pop edi
dec [subrectangles]
jnz .subrectangle
jmp next_rectangle