BQ: get rid of async in producer interface

- Get rid of the async flag in dequeueBuffer, allocateBuffers,
  waitForFreeSlotThenRelock, and QueueBufferInput.
- Instead use the persistent flags mDequeueBufferCannotBlock and
  mAsyncMode to determine whether to use the async behavior.

Bug 13174928

Change-Id: Ie6f7b9e46ee3844ee77b102003c84dddf1bcafdd

1 files changed, 4 insertions, 2 deletions

diff --git a/libs/gui/BufferQueueConsumer.cpp b/libs/gui/BufferQueueConsumer.cpp
index 950a07400b..d52b47f3b0 100644
--- a/libs/gui/BufferQueueConsumer.cpp
+++ b/libs/gui/BufferQueueConsumer.cpp
@@ -527,11 +527,13 @@ status_t BufferQueueConsumer::setMaxAcquiredBufferCount(
     }
 
     if ((maxAcquiredBuffers + mCore->mMaxDequeuedBufferCount +
-            (mCore->mAsyncMode ? 1 : 0)) > mCore->mMaxBufferCount) {
+            (mCore->mAsyncMode || mCore->mDequeueBufferCannotBlock ? 1 : 0)) >
+            mCore->mMaxBufferCount) {
         BQ_LOGE("setMaxAcquiredBufferCount: %d acquired buffers would exceed "
                 "the maxBufferCount (%d) (maxDequeued %d async %d)",
                 maxAcquiredBuffers, mCore->mMaxBufferCount,
-                mCore->mMaxDequeuedBufferCount, mCore->mAsyncMode);
+                mCore->mMaxDequeuedBufferCount, mCore->mAsyncMode ||
+                mCore->mDequeueBufferCannotBlock);
         return BAD_VALUE;
     }