Blast: Use a unique id to track buffers
When buffer queue is configured in shared buffer mode, the client
can queue the same buffer over and over again and the consumer
can acquire the same buffer repeatedly. BBQ tracks acquired buffers
by graphic buffer id and SCC tracks release buffer callbacks by
graphic buffer ids. This breaks if a buffer is reused before release.
Fix this by using graphic buffer id and framenumber to track acquired
buffers and buffer release callbacks.
Test: atest CtsDeqpTestCases:dEQP-VK.wsi.android.shared_presentable_image.scale_none.identity.inherit.demand CtsDeqpTestCases:dEQP-VK.wsi.android.colorspace#basic
Bug: 191220669
Change-Id: Ibd54df9fa6780c26cd8de769bf9e43163abbed5a
diff --git a/services/surfaceflinger/BufferStateLayer.cpp b/services/surfaceflinger/BufferStateLayer.cpp
index 6b5cf04..8cf0d66 100644
--- a/services/surfaceflinger/BufferStateLayer.cpp
+++ b/services/surfaceflinger/BufferStateLayer.cpp
@@ -44,25 +44,18 @@
using PresentState = frametimeline::SurfaceFrame::PresentState;
namespace {
void callReleaseBufferCallback(const sp<ITransactionCompletedListener>& listener,
- const sp<GraphicBuffer>& buffer, const sp<Fence>& releaseFence,
- uint32_t transformHint, uint32_t currentMaxAcquiredBufferCount) {
+ const sp<GraphicBuffer>& buffer, uint64_t framenumber,
+ const sp<Fence>& releaseFence, uint32_t transformHint,
+ uint32_t currentMaxAcquiredBufferCount) {
if (!listener) {
return;
}
- listener->onReleaseBuffer(buffer->getId(), releaseFence ? releaseFence : Fence::NO_FENCE,
- transformHint, currentMaxAcquiredBufferCount);
+ listener->onReleaseBuffer({buffer->getId(), framenumber},
+ releaseFence ? releaseFence : Fence::NO_FENCE, transformHint,
+ currentMaxAcquiredBufferCount);
}
} // namespace
-// clang-format off
-const std::array<float, 16> BufferStateLayer::IDENTITY_MATRIX{
- 1, 0, 0, 0,
- 0, 1, 0, 0,
- 0, 0, 1, 0,
- 0, 0, 0, 1
-};
-// clang-format on
-
BufferStateLayer::BufferStateLayer(const LayerCreationArgs& args)
: BufferLayer(args), mHwcSlotGenerator(new HwcSlotGenerator()) {
mDrawingState.dataspace = ui::Dataspace::V0_SRGB;
@@ -75,8 +68,8 @@
// issue with the clone layer trying to use the texture.
if (mBufferInfo.mBuffer != nullptr && !isClone()) {
callReleaseBufferCallback(mDrawingState.releaseBufferListener,
- mBufferInfo.mBuffer->getBuffer(), mBufferInfo.mFence,
- mTransformHint,
+ mBufferInfo.mBuffer->getBuffer(), mBufferInfo.mFrameNumber,
+ mBufferInfo.mFence, mTransformHint,
mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(
mOwnerUid));
}
@@ -87,7 +80,7 @@
if (ch == nullptr) {
return OK;
}
- ch->previousBufferId = mPreviousBufferId;
+ ch->previousReleaseCallbackId = mPreviousReleaseCallbackId;
if (!ch->previousReleaseFence.get()) {
ch->previousReleaseFence = fence;
return OK;
@@ -214,7 +207,7 @@
// see BufferStateLayer::onLayerDisplayed.
for (auto& handle : mDrawingState.callbackHandles) {
if (handle->releasePreviousBuffer) {
- handle->previousBufferId = mPreviousBufferId;
+ handle->previousReleaseCallbackId = mPreviousReleaseCallbackId;
break;
}
}
@@ -438,8 +431,8 @@
// dropped and we should decrement the pending buffer count and
// call any release buffer callbacks if set.
callReleaseBufferCallback(mDrawingState.releaseBufferListener,
- mDrawingState.buffer->getBuffer(), mDrawingState.acquireFence,
- mTransformHint,
+ mDrawingState.buffer->getBuffer(), mDrawingState.frameNumber,
+ mDrawingState.acquireFence, mTransformHint,
mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(
mOwnerUid));
decrementPendingBufferCount();
@@ -684,7 +677,7 @@
* DeferTransactionUntil -> frameNumber = 2
* Random other stuff
* }
- * Now imagine getHeadFrameNumber returned mDrawingState.mFrameNumber (or mCurrentFrameNumber).
+ * Now imagine mFrameNumber returned mDrawingState.frameNumber (or mCurrentFrameNumber).
* Prior to doTransaction SurfaceFlinger will call notifyAvailableFrames, but because we
* haven't swapped mDrawingState to mDrawingState yet we will think the sync point
* is not ready. So we will return false from applyPendingState and not swap
@@ -792,9 +785,10 @@
decrementPendingBufferCount();
}
- mPreviousBufferId = getCurrentBufferId();
+ mPreviousReleaseCallbackId = {getCurrentBufferId(), mBufferInfo.mFrameNumber};
mBufferInfo.mBuffer = s.buffer;
mBufferInfo.mFence = s.acquireFence;
+ mBufferInfo.mFrameNumber = s.frameNumber;
return NO_ERROR;
}
@@ -969,8 +963,8 @@
// then we will drop a buffer and should decrement the pending buffer count and
// call any release buffer callbacks if set.
callReleaseBufferCallback(mDrawingState.releaseBufferListener,
- mDrawingState.buffer->getBuffer(), mDrawingState.acquireFence,
- mTransformHint,
+ mDrawingState.buffer->getBuffer(), mDrawingState.frameNumber,
+ mDrawingState.acquireFence, mTransformHint,
mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(
mOwnerUid));
decrementPendingBufferCount();