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render/dmabuf: add wlr_dmabuf_attributes_copy

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Simon Ser 2019-04-29 22:32:35 +03:00 committed by Drew DeVault
parent 5c78f1b0d5
commit 6dbdf5db34
2 changed files with 25 additions and 1 deletions
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6
include/wlr/render/dmabuf.h
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@ -9,6 +9,7 @@
#ifndef WLR_RENDER_DMABUF_H
#define WLR_RENDER_DMABUF_H
#include <stdbool.h>
#include <stdint.h>
#define WLR_DMABUF_MAX_PLANES 4
@ -35,5 +36,10 @@ struct wlr_dmabuf_attributes {
* Closes all file descriptors in the DMA-BUF attributes.
*/
void wlr_dmabuf_attributes_finish(struct wlr_dmabuf_attributes *attribs);
/**
* Clones the DMA-BUF attributes.
*/
bool wlr_dmabuf_attributes_copy(struct wlr_dmabuf_attributes *dst,
struct wlr_dmabuf_attributes *src);
#endif

18
render/dmabuf.c
View file

@ -1,5 +1,8 @@
#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) {
@ -8,3 +11,18 @@ void wlr_dmabuf_attributes_finish( struct wlr_dmabuf_attributes *attribs) {
}
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));
for (int 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");
return false;
}
}
return true;
}