for(j=0; j<xsz; j++) {
int val = src[j];
if(val > threshold) {
for(j=0; j<xsz; j++) {
int val = src[j];
if(val > threshold) {
- *dest++ = col[0];
- *dest++ = col[1];
+ *dest++ = col[1];
+ *dest++ = col[0];
*dest++ = col[3];
} else {
dest += 4;
*dest++ = col[3];
} else {
dest += 4;