int xl = *x;
int yl = *y;
int planel = *plane;
+ int pixels_per_value = 8/bits_per_plane;
value <<= shift;
d = frame->data[0] + yl * frame->linesize[0];
for (j = 8-bits_per_plane; j >= 0; j -= bits_per_plane) {
d[xl] |= (value >> j) & mask;
xl += 1;
- if (xl == s->width) {
+ while (xl == s->width) {
yl -= 1;
xl = 0;
if (yl < 0) {
mask <<= bits_per_plane;
}
d = frame->data[0] + yl * frame->linesize[0];
+ if (s->nb_planes == 1 &&
+ run*pixels_per_value >= s->width &&
+ pixels_per_value < s->width &&
+ s->width % pixels_per_value == 0
+ ) {
+ for (; xl < pixels_per_value; xl ++) {
+ j = (j < bits_per_plane ? 8 : j) - bits_per_plane;
+ d[xl] |= (value >> j) & mask;
+ }
+ av_memcpy_backptr(d+xl, pixels_per_value, s->width - xl);
+ run -= s->width / pixels_per_value;
+ xl = s->width;
+ }
}
}
run--;