rowbytes are assumed about hqx HOT 4 CLOSED

figured it out:

at the top of hq4x do this:

HQX_API void HQX_CALLCONV hq4x_32_rb( uint32_t * sp, uint32_t srb, uint32_t * 
dp, uint32_t drb, int Xres, int Yres )
{
    int         i, j, k;
    int         prevline, nextline;
    uint32_t        w[10];
    int         dpL = (drb >> 2);
    uint8_t     *sRowP = (uint8_t *)sp;
    uint8_t     *dRowP = (uint8_t *)dp;

    for (j=0; j<Yres; j++) {
        if (j>0)      prevline = -(int)(srb >> 2); else prevline = 0;
        if (j<Yres-1) nextline =  (srb >> 2); else nextline = 0;
---------------
at the bottom:
---------------
            sp++;
            dp += 4;
        }

    sRowP += srb;
    sp = (uint32_t *)sRowP;

    dRowP += drb * 4;
    dp = (uint32_t *)dRowP;
    }

for backward compatibility:

HQX_API void HQX_CALLCONV hq4x_32( uint32_t * sp, uint32_t * dp, int Xres, int 
Yres )
{
    uint32_t        rowBytesL = Xres * 4;

    hq4x_32_rb(sp, rowBytesL, dp, rowBytesL * 4, Xres, Yres);
}

I'll incorporate this when I get the chance.

Have integrated this change for all versions of the scale function.