drm_hwcomposer: Add out-fence support
Add support for out-fences through the OUT_FENCE_PTR property.
Out-fences signal when their associated buffer may be read by a device.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
diff --git a/drmhwctwo.cpp b/drmhwctwo.cpp
index 8c853f4..00bedd0 100644
--- a/drmhwctwo.cpp
+++ b/drmhwctwo.cpp
@@ -557,19 +557,14 @@
i = overlay_planes.erase(i);
}
+ AddFenceToRetireFence(composition->take_out_fence());
+
ret = compositor_.QueueComposition(std::move(composition));
if (ret) {
ALOGE("Failed to apply the frame composition ret=%d", ret);
return HWC2::Error::BadParameter;
}
- // Now that the release fences have been generated by the compositor, make
- // sure they're managed properly
- for (std::pair<const uint32_t, DrmHwcTwo::HwcLayer *> &l : z_map) {
- l.second->manage_release_fence();
- AddFenceToRetireFence(l.second->release_fence());
- }
-
// The retire fence returned here is for the last frame, so return it and
// promote the next retire fence
*retire_fence = retire_fence_.Release();