Coder's Guild Mailing List

High Resolution Pixel Plotting

Posted by Kspansel@xxx.xxx on 1999-04-04

Hello..
    I have a slight problem plotting a pixel in a super vga mode.  Would 
someone be so kind as to explain to me how to find the offset and bank for 
the pixel?  What I have is this:

long offset = (long)(y *modeInfo->HorizontalResolution + x);
short bank = (bank >> (16 - 4));
offset = offset - (bank << (16 - 4));

I use 16-4 because my card has a granularity of 4k and not 64k.  For some 
reason this won't work for me, and just can't figure out why.  Any help at 
all is greatly appreciated.  Thanks.

                                        
                    Kory Spansel

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