Re: [ros-dev] [ros-diffs] [tkreuzer] 42353: asm version of DIB_32BPP_ColorFill: - Add frame pointer - Get rid of algin_draw, 32bpp surfaces must be DWORD aligned - Optimize the loop - Add comments

[Jose Catena]

A correction of my previous msg:

In asm I would write the loop as:
        mov eax, iColor 
        mov ebx, pulLine
        mov edx, cy
L1:
        mov edi, ebx
        mov ecx, _cx
        rep stosd
        add ebx, lDelta
        dec edx
        jnz l1

It is not possible to optimize the loop further AFAIK, and this only saves a
cmp and jnz in the outer loop, a tiny gain.

Jose Catena
DIGIWAVES S.L.



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