uint32_t sum = 0;
for (i = 0; i < height; i++) {
- lineaddr = fb->fbaddr + (i + y) * scanline;
+ lineaddr = fb->fbaddr + (i + y) * scanline + (4 * x);
- sum ^= crc32(lineaddr, width * 4);
+ sum = crc32(lineaddr, width * 4, sum);
}
return sum;
int cx, cy;
unsigned int *ibuf = (unsigned int *)buf;
unsigned int *fbuf;
- for (cy = y; cy < (y + height); cy++)
+ for (cy = 0; cy < height; cy++)
{
fbuf = (unsigned int *)fb->fbaddr;
- fbuf += cy * (fb->curmode.xres) + x;
- for (cx = x; cx < (x + width); cx++)
+ fbuf += (cy + y) * (fb->curmode.xres) + x;
+ for (cx = 0; cx < width; cx++)
*(ibuf++) = *(fbuf++);
}
}