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[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 486: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 486: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 486: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
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PocketMatrix • View topic - duplicating images
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duplicating images


duplicating images

Postby Nic-Gun » Apr 10, 2008 @ 11:02am

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Postby edge » Apr 10, 2008 @ 7:05pm

Last edited by edge on Apr 11, 2008 @ 9:12pm, edited 1 time in total.
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Postby Nic-Gun » Apr 11, 2008 @ 10:59am

i tried the sample but i got an error at line :
ClassEMemory::Copy(dst, src, info.realheight * info.realpitch * info.realwidth * (info.bitwidth / 8));

where it lead to MEMCPY.asm at line :
;
; Copy down to avoid propogation in overlapping buffers.
;
align @WordSize
CopyDown:
lea esi,[esi+ecx-4] ;U - point to 4 bytes before src buffer end
lea edi,[edi+ecx-4] ;V - point to 4 bytes before dest buffer end
;
; See if the destination start is dword aligned
;

test edi,11b ;U - test if dword aligned
jnz short CopyLeadDown ;V - if not, jump

shr ecx,2 ;U - shift down to dword count
and edx,11b ;V - trailing byte count

cmp ecx,8 ;U - test if small enough for unwind copy
jb short CopyUnwindDown ;V - if so, then jump

std ;N - set direction flag
rep movsd ;N - move all of our dwords
cld ;N - clear direction flag back

jmp dword ptr TrailDownVec[edx*4] ;N - process trailing bytes

align @WordSize


any suggestion?
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Postby edge » Apr 11, 2008 @ 9:10pm

Hi Nic-Gun,

Sorry, I was lazy :p

I've modified the sample in the original post. It was copying too many bytes.
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Postby Nic-Gun » Apr 14, 2008 @ 5:04am

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