#include <stdint.h>
#include <fb.h>
+#include <crc32.h>
uint32_t checksum_rect_generic32(int x, int y, int width, int height) {
*/
int scanline = fb->curmode.xres * 4;
- uint32_t * lineaddr;
- int i, j;
+ unsigned char * lineaddr;
+ int i;
uint32_t sum = 0;
for (i = 0; i < height; i++) {
- lineaddr = (uint32_t *)(fb->fbaddr + (i + y) * scanline);
+ lineaddr = fb->fbaddr + (i + y) * scanline + (4 * x);
- for (j = 0; j < width; j++) {
- sum += lineaddr[j + x];
- }
+ sum ^= crc32(lineaddr, width * 4);
}
return sum;
for (cy = y; cy < (y + height); cy++)
{
fbuf = (unsigned int *)fb->fbaddr;
- fbuf += y * (fb->curmode.xres) + x;
+ fbuf += cy * (fb->curmode.xres) + x;
for (cx = x; cx < (x + width); cx++)
*(ibuf++) = *(fbuf++);
}