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export-dmabuf: export DMA-BUF on output commit 

We were previously exporting DMA-BUFs when receiving the capture_output
request, and sending a done event on wlr_output.events.precommit. Instead,
export and send done on wlr_output.events.commit.
This commit is contained in:
Simon Ser 2020-11-04 14:38:56 +01:00
parent 8c8164c4a6
commit f0945e112f
2 changed files with 35 additions and 37 deletions
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3
include/wlr/types/wlr_export_dmabuf_v1.h
View File

@ -29,12 +29,11 @@ struct wlr_export_dmabuf_frame_v1 {
struct wlr_export_dmabuf_manager_v1 *manager;
struct wl_list link; // wlr_export_dmabuf_manager_v1::frames
struct wlr_dmabuf_attributes attribs;
struct wlr_output *output;
bool cursor_locked;
struct wl_listener output_precommit;
struct wl_listener output_commit;
};
struct wlr_export_dmabuf_manager_v1 *wlr_export_dmabuf_manager_v1_create(

69
types/wlr_export_dmabuf_v1.c
View File

@ -41,8 +41,7 @@ static void frame_destroy(struct wlr_export_dmabuf_frame_v1 *frame) {
}
}
wl_list_remove(&frame->link);
wl_list_remove(&frame->output_precommit.link);
wlr_dmabuf_attributes_finish(&frame->attribs);
wl_list_remove(&frame->output_commit.link);
// Make the frame resource inert
wl_resource_set_user_data(frame->resource, NULL);
free(frame);
@ -53,18 +52,41 @@ static void frame_handle_resource_destroy(struct wl_resource *resource) {
frame_destroy(frame);
}
static void frame_output_handle_precommit(struct wl_listener *listener,
static void frame_output_handle_commit(struct wl_listener *listener,
void *data) {
struct wlr_export_dmabuf_frame_v1 *frame =
wl_container_of(listener, frame, output_precommit);
struct wlr_output_event_precommit *event = data;
wl_container_of(listener, frame, output_commit);
struct wlr_output_event_commit *event = data;
if (!(event->output->pending.committed & WLR_OUTPUT_STATE_BUFFER)) {
if (!(event->committed & WLR_OUTPUT_STATE_BUFFER)) {
return;
}
wl_list_remove(&frame->output_precommit.link);
wl_list_init(&frame->output_precommit.link);
wl_list_remove(&frame->output_commit.link);
wl_list_init(&frame->output_commit.link);
struct wlr_dmabuf_attributes attribs = {0};
if (!wlr_output_export_dmabuf(frame->output, &attribs)) {
zwlr_export_dmabuf_frame_v1_send_cancel(frame->resource,
ZWLR_EXPORT_DMABUF_FRAME_V1_CANCEL_REASON_TEMPORARY);
frame_destroy(frame);
return;
}
uint32_t frame_flags = ZWLR_EXPORT_DMABUF_FRAME_V1_FLAGS_TRANSIENT;
uint32_t mod_high = attribs.modifier >> 32;
uint32_t mod_low = attribs.modifier & 0xFFFFFFFF;
zwlr_export_dmabuf_frame_v1_send_frame(frame->resource,
attribs.width, attribs.height, 0, 0, attribs.flags, frame_flags,
attribs.format, mod_high, mod_low, attribs.n_planes);
for (int i = 0; i < attribs.n_planes; ++i) {
off_t size = lseek(attribs.fd[i], 0, SEEK_END);
zwlr_export_dmabuf_frame_v1_send_object(frame->resource, i,
attribs.fd[i], size, attribs.offset[i], attribs.stride[i], i);
}
wlr_dmabuf_attributes_finish(&attribs);
time_t tv_sec = event->when->tv_sec;
uint32_t tv_sec_hi = (sizeof(tv_sec) > 4) ? tv_sec >> 32 : 0;
@ -98,7 +120,7 @@ static void manager_handle_capture_output(struct wl_client *client,
return;
}
frame->manager = manager;
wl_list_init(&frame->output_precommit.link);
wl_list_init(&frame->output_commit.link);
uint32_t version = wl_resource_get_version(manager_resource);
frame->resource = wl_resource_create(client,
@ -120,14 +142,6 @@ static void manager_handle_capture_output(struct wl_client *client,
return;
}
struct wlr_dmabuf_attributes *attribs = &frame->attribs;
if (!wlr_output_export_dmabuf(output, attribs)) {
zwlr_export_dmabuf_frame_v1_send_cancel(frame->resource,
ZWLR_EXPORT_DMABUF_FRAME_V1_CANCEL_REASON_TEMPORARY);
frame_destroy(frame);
return;
}
frame->output = output;
wlr_output_lock_attach_render(frame->output, true);
@ -136,26 +150,11 @@ static void manager_handle_capture_output(struct wl_client *client,
frame->cursor_locked = true;
}
uint32_t frame_flags = ZWLR_EXPORT_DMABUF_FRAME_V1_FLAGS_TRANSIENT;
uint32_t mod_high = attribs->modifier >> 32;
uint32_t mod_low = attribs->modifier & 0xFFFFFFFF;
zwlr_export_dmabuf_frame_v1_send_frame(frame->resource,
output->width, output->height, 0, 0, attribs->flags, frame_flags,
attribs->format, mod_high, mod_low, attribs->n_planes);
for (int i = 0; i < attribs->n_planes; ++i) {
off_t size = lseek(attribs->fd[i], 0, SEEK_END);
zwlr_export_dmabuf_frame_v1_send_object(frame->resource, i,
attribs->fd[i], size, attribs->offset[i], attribs->stride[i], i);
}
wl_list_remove(&frame->output_commit.link);
wl_signal_add(&output->events.commit, &frame->output_commit);
frame->output_commit.notify = frame_output_handle_commit;
wlr_output_schedule_frame(output);
wl_list_remove(&frame->output_precommit.link);
wl_signal_add(&output->events.precommit, &frame->output_precommit);
frame->output_precommit.notify = frame_output_handle_precommit;
}
static void manager_handle_destroy(struct wl_client *client,