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Regard whitespace Rev 3137 → Rev 3138

/programs/develop/libraries/buf2d/trunk/buf2d.asm
3451,7 → 3451,7
ret
endp
 
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align 4
proc buf_filter_dither, buffer:dword, algor:dword
pushad
3464,7 → 3464,7
;edi - pointer to 24bit bitmap
;edx - x size
;esi - y size
lea edx,[edx*3]
lea edx,[edx+edx*2]
imul esi,edx
 
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3478,8 → 3478,18
call dither_1
jmp .dither_end
@@:
cmp dword[algor],2
jne @f
call dither_2
jmp .dither_end
@@:
cmp dword[algor],3
jne @f
call dither_3
jmp .dither_end
@@:
call dither_4
jmp .dither_end
.error:
stdcall print_err,sz_buf2d_filter_dither,txt_err_n24b
.dither_end:
3488,7 → 3498,7
endp
 
align 16
dither_0: ; Sierra Filter Lite algoritm
dither_0: ; Sierra Filter Lite algorithm
newp_0: ; Dithering cycle
xor ebx,ebx ; At first threshold
movzx ecx,byte[edi]
3551,7 → 3561,7
ret
 
align 16
dither_1: ; Floyd-Steinberg algoritm
dither_1: ; Floyd-Steinberg algorithm
newp_1: ; Dithering cycle
xor ebx,ebx ; At first threshold
movzx ecx,byte[edi]
3629,7 → 3639,7
ret
 
align 16
dither_2: ; Burkers algoritm
dither_2: ; Burkes algorithm
newp_2: ; Dithering cycle
xor ebx,ebx ; At first threshold
movsx ecx,byte[edi]
3742,7 → 3752,162
ret
 
 
align 16
dither_3: ; Heavyiron_mod algorithm
newp_3: ; Dithering cycle
xor ebx,ebx ; At first threshold
movzx ecx,byte[edi]
cmp cl,255
je .next
test cl,cl
jz .next
jns @f
dec ebx
sub ecx,255
@@:
mov [edi],bl ; putpixel
 
sar ecx,2 ; error/4
 
movzx eax,byte[edi+3] ; pixel (x+1;y)
add eax,ecx ; add error/4 to (x+1;y)
jge @f ; check_overflow
xor eax,eax
jmp .ok
@@:
cmp eax,255
jle .ok
or al,255
.ok:
mov [edi+3],al ; putpixel
 
movzx eax,byte[edi+edx-3] ; pixel (x-1;y+1)
add eax,ecx ; add error/4 to (x-1;y+1)
jge @f ; check_overflow
xor eax,eax
jmp .ok1
@@:
cmp eax,255
jle .ok1
or al,255
.ok1:
mov [edi+edx-3],al ; putpixel
 
movzx eax,byte[edi+edx] ; pixel (x;y+1)
add eax,ecx ; add error/4 to (x;y+1)
jge @f ; check_overflow
xor eax,eax
jmp .ok2
@@:
cmp eax,255
jle .ok2
or al,255
.ok2:
mov [edi+edx],al ; putpixel
 
.next:
inc edi
dec esi
jnz newp_3
ret
 
align 16
dither_4: ; Atkinson algorithm
newp_4: ; Dithering cycle
 
xor ebx,ebx ; At first threshold
movsx ecx,byte[edi]
cmp cl,255
je .next
test cl,cl
jz .next
jns @f
dec ebx
@@:
mov [edi],bl ; putpixel
 
sar ecx,3 ; error/8
 
movzx eax,byte[edi+3] ; pixel (x+1;y)
add eax,ecx ; add error/8 to (x+1;y)
jge @f ; check_overflow
xor eax,eax
jmp .ok
@@:
cmp eax,255
jle .ok
or al,255
.ok:
mov [edi+3],al ; putpixel
 
movzx eax,byte[edi+edx] ; pixel (x;y+1)
add eax,ecx ; add error/8 to (x;y+1)
jge @f ; check_overflow
xor eax,eax
jmp .ok1
@@:
cmp eax,255
jle .ok1
or al,255
.ok1:
mov [edi+edx],al ; putpixel
 
movzx eax,byte[edi+6] ; pixel (x+2;y)
add eax,ecx ; add error/8 to (x+2;y)
jge @f ; check_overflow
xor eax,eax
jmp .ok2
@@:
cmp eax,255
jle .ok2
or al,255
.ok2:
mov [edi+6],al ; putpixel
 
movzx eax,byte[edi+edx-3] ; pixel (x-1;y+1)
add eax,ecx ; add error/8 to (x-1;y+1)
jge @f ; check_overflow
xor eax,eax
jmp .ok3
@@:
cmp eax,255
jle .ok3
or al,255
.ok3:
mov [edi+edx-3],al ; putpixel
 
movzx eax,byte[edi+edx+3] ; pixel (x+1;y+1)
add eax,ecx ; add error/8 to (x+1;y+1)
jge @f ; check_overflow
xor eax,eax
jmp .ok4
@@:
cmp eax,255
jle .ok4
or al,255
.ok4:
mov [edi+edx+3],al ; putpixel
 
 
movzx eax,byte[edi+edx+edx] ; pixel (x;y+2)
add eax,ecx ; add error/8 to (x;y+2)
jge @f ; check_overflow
xor eax,eax
jmp .ok5
@@:
cmp eax,255
jle .ok5
or al,255
.ok5:
mov [edi+edx+edx],al ; putpixel
 
.next:
inc edi
dec esi
jnz newp_4
ret
 
 
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