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Handle failed requestBuffer after successful dequeueBuffer

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If the virtual display consumer disconnects after the
VirtualDisplaySurface dequeues a buffer but before it requests it, the
request will fail. Previously the error was ignored, and the caller
would get a success result but a NULL buffer. Now the dequeued buffer
is cancelled and the error propagated to the caller.

Bug: 14140551
Change-Id: I91547885c2cf6063dc7a8f02d97f2df282cdde2c
This commit is contained in:
Jesse Hall 2014-04-29 16:14:14 -07:00
parent 5d112a7dd6
commit 0b63cd105c
1 changed files with 6 additions and 1 deletions
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7
services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
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@ -302,7 +302,12 @@ status_t VirtualDisplaySurface::dequeueBuffer(Source source,
}
}
if (result & BUFFER_NEEDS_REALLOCATION) {
mSource[source]->requestBuffer(*sslot, &mProducerBuffers[pslot]);
result = mSource[source]->requestBuffer(*sslot, &mProducerBuffers[pslot]);
if (result < 0) {
mProducerBuffers[pslot].clear();
mSource[source]->cancelBuffer(*sslot, *fence);
return result;
}
VDS_LOGV("dequeueBuffer(%s): buffers[%d]=%p fmt=%d usage=%#x",
dbgSourceStr(source), pslot, mProducerBuffers[pslot].get(),
mProducerBuffers[pslot]->getPixelFormat(),