Mesa (staging/20.1): loader/dri3: Add dri3_wait_for_event_locked full_sequence out parameter
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Mon Jun 29 19:14:58 UTC 2020
Module: Mesa
Branch: staging/20.1
Commit: a7c5c9836b36a7ee2e10079ed76a4fd14cd4b587
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a7c5c9836b36a7ee2e10079ed76a4fd14cd4b587
Author: Michel Dänzer <mdaenzer at redhat.com>
Date: Fri Jun 5 18:12:33 2020 +0200
loader/dri3: Add dri3_wait_for_event_locked full_sequence out parameter
Preparation for the next commit, no functional change intended.
Cc: mesa-stable
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5368>
(cherry picked from commit ee77951714ff4373261befde6e84f592cc1c769c)
---
.pick_status.json | 2 +-
src/loader/loader_dri3_helper.c | 12 +++++++++---
src/loader/loader_dri3_helper.h | 1 +
3 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/.pick_status.json b/.pick_status.json
index 86d4cc8f446..9d1f8b75207 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -22,7 +22,7 @@
"description": "loader/dri3: Add dri3_wait_for_event_locked full_sequence out parameter",
"nominated": true,
"nomination_type": 0,
- "resolution": 0,
+ "resolution": 1,
"master_sha": null,
"because_sha": null
},
diff --git a/src/loader/loader_dri3_helper.c b/src/loader/loader_dri3_helper.c
index 2e1603c3fe2..a2c0f6cc817 100644
--- a/src/loader/loader_dri3_helper.c
+++ b/src/loader/loader_dri3_helper.c
@@ -526,7 +526,8 @@ dri3_handle_present_event(struct loader_dri3_drawable *draw,
}
static bool
-dri3_wait_for_event_locked(struct loader_dri3_drawable *draw)
+dri3_wait_for_event_locked(struct loader_dri3_drawable *draw,
+ unsigned *full_sequence)
{
xcb_generic_event_t *ev;
xcb_present_generic_event_t *ge;
@@ -536,6 +537,8 @@ dri3_wait_for_event_locked(struct loader_dri3_drawable *draw)
/* Only have one thread waiting for events at a time */
if (draw->has_event_waiter) {
cnd_wait(&draw->event_cnd, &draw->mtx);
+ if (full_sequence)
+ *full_sequence = draw->last_special_event_sequence;
/* Another thread has updated the protected info, so retest. */
return true;
} else {
@@ -549,6 +552,9 @@ dri3_wait_for_event_locked(struct loader_dri3_drawable *draw)
}
if (!ev)
return false;
+ draw->last_special_event_sequence = ev->full_sequence;
+ if (full_sequence)
+ *full_sequence = ev->full_sequence;
ge = (void *) ev;
dri3_handle_present_event(draw, ge);
return true;
@@ -619,7 +625,7 @@ loader_dri3_wait_for_sbc(struct loader_dri3_drawable *draw,
target_sbc = draw->send_sbc;
while (draw->recv_sbc < target_sbc) {
- if (!dri3_wait_for_event_locked(draw)) {
+ if (!dri3_wait_for_event_locked(draw, NULL)) {
mtx_unlock(&draw->mtx);
return 0;
}
@@ -667,7 +673,7 @@ dri3_find_back(struct loader_dri3_drawable *draw)
return id;
}
}
- if (!dri3_wait_for_event_locked(draw)) {
+ if (!dri3_wait_for_event_locked(draw, NULL)) {
mtx_unlock(&draw->mtx);
return -1;
}
diff --git a/src/loader/loader_dri3_helper.h b/src/loader/loader_dri3_helper.h
index 663ce3c0e2f..c314e4c5a9d 100644
--- a/src/loader/loader_dri3_helper.h
+++ b/src/loader/loader_dri3_helper.h
@@ -174,6 +174,7 @@ struct loader_dri3_drawable {
*/
mtx_t mtx;
cnd_t event_cnd;
+ unsigned last_special_event_sequence;
bool has_event_waiter;
};
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