Remove extra glFlush from handleMessageRefresh().
For BufferQueueLayers, the GL flush fence was already passed to
BufferLayerConsumer::addReleaseFence during post composition for buffer
synchronization when releasing a buffer, so passing the same fence isn't
necessary.
For BufferStateLayers, this fence shouldn't be necessary for merging
with the buffer's acquire fence in latchBuffer, since buffer readiness
for the current buffer shouldn't depend on whether the prior buffer was
finished being used in gpu composition.
So, the fence returned by the extra glFlush call isn't necessary, so we
can just remove the call + plumbing entirely.
Bug: 117103118
Change-Id: Iafeb33dab46213f711ee2ecb59731d003263a551
Test: apct tests, go/wm-smoke, cts
Test: chrome debug apk
diff --git a/services/surfaceflinger/BufferLayerConsumer.cpp b/services/surfaceflinger/BufferLayerConsumer.cpp
index 7ed8184..6866e5c 100644
--- a/services/surfaceflinger/BufferLayerConsumer.cpp
+++ b/services/surfaceflinger/BufferLayerConsumer.cpp
@@ -100,8 +100,7 @@
status_t BufferLayerConsumer::updateTexImage(BufferRejecter* rejecter, nsecs_t expectedPresentTime,
bool* autoRefresh, bool* queuedBuffer,
- uint64_t maxFrameNumber,
- const sp<Fence>& releaseFence) {
+ uint64_t maxFrameNumber) {
ATRACE_CALL();
BLC_LOGV("updateTexImage");
Mutex::Autolock lock(mMutex);
@@ -146,7 +145,7 @@
}
// Release the previous buffer.
- err = updateAndReleaseLocked(item, &mPendingRelease, releaseFence);
+ err = updateAndReleaseLocked(item, &mPendingRelease);
if (err != NO_ERROR) {
return err;
}
@@ -224,25 +223,11 @@
}
status_t BufferLayerConsumer::updateAndReleaseLocked(const BufferItem& item,
- PendingRelease* pendingRelease,
- const sp<Fence>& releaseFence) {
+ PendingRelease* pendingRelease) {
status_t err = NO_ERROR;
int slot = item.mSlot;
- // Do whatever sync ops we need to do before releasing the old slot.
- if (slot != mCurrentTexture) {
- err = syncForReleaseLocked(releaseFence);
- if (err != NO_ERROR) {
- // Release the buffer we just acquired. It's not safe to
- // release the old buffer, so instead we just drop the new frame.
- // As we are still under lock since acquireBuffer, it is safe to
- // release by slot.
- releaseBufferLocked(slot, mSlots[slot].mGraphicBuffer);
- return err;
- }
- }
-
BLC_LOGV("updateAndRelease: (slot=%d buf=%p) -> (slot=%d buf=%p)", mCurrentTexture,
mCurrentTextureBuffer != nullptr ? mCurrentTextureBuffer->handle : 0, slot,
mSlots[slot].mGraphicBuffer->handle);
@@ -298,30 +283,6 @@
return mRE.bindExternalTextureBuffer(mTexName, mCurrentTextureBuffer, mCurrentFence, false);
}
-status_t BufferLayerConsumer::syncForReleaseLocked(const sp<Fence>& releaseFence) {
- BLC_LOGV("syncForReleaseLocked");
-
- if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
- if (mRE.useNativeFenceSync() && releaseFence != Fence::NO_FENCE) {
- // TODO(alecmouri): fail further upstream if the fence is invalid
- if (!releaseFence->isValid()) {
- BLC_LOGE("syncForReleaseLocked: failed to flush RenderEngine");
- return UNKNOWN_ERROR;
- }
- status_t err =
- addReleaseFenceLocked(mCurrentTexture, mCurrentTextureBuffer, releaseFence);
- if (err != OK) {
- BLC_LOGE("syncForReleaseLocked: error adding release fence: "
- "%s (%d)",
- strerror(-err), err);
- return err;
- }
- }
- }
-
- return OK;
-}
-
void BufferLayerConsumer::getTransformMatrix(float mtx[16]) {
Mutex::Autolock lock(mMutex);
memcpy(mtx, mCurrentTransformMatrix, sizeof(mCurrentTransformMatrix));