wlroots-hyprland/render/dmabuf.c

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#define _POSIX_C_SOURCE 200809L
#include <fcntl.h>
#include <unistd.h>
#include <wlr/render/dmabuf.h>
#include <wlr/util/log.h>
void wlr_dmabuf_attributes_finish(struct wlr_dmabuf_attributes *attribs) {
for (int i = 0; i < attribs->n_planes; ++i) {
close(attribs->fd[i]);
attribs->fd[i] = -1;
}
attribs->n_planes = 0;
}
bool wlr_dmabuf_attributes_copy(struct wlr_dmabuf_attributes *dst,
struct wlr_dmabuf_attributes *src) {
memcpy(dst, src, sizeof(struct wlr_dmabuf_attributes));
int i;
for (i = 0; i < src->n_planes; ++i) {
dst->fd[i] = fcntl(src->fd[i], F_DUPFD_CLOEXEC, 0);
if (dst->fd[i] < 0) {
wlr_log_errno(WLR_ERROR, "fcntl(F_DUPFD_CLOEXEC) failed");
goto error;
}
}
return true;
error:
for (int j = 0; j < i; j++) {
close(dst->fd[i]);
dst->fd[j] = -1;
}
dst->n_planes = 0;
return false;
}