android/android_hardware_qcom_display
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hwc: qbuf: Add API to unlock all

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Add API to unlock all current and previous buffers.
This is essential in suspend cases.

CRs-fixed: 382332

(cherry picked from commit d24eb9e70480f89561108078f68cbbd9b20e4bb5)

Change-Id: I54fcded7cabc79d991d4b28a248867d860ec6b08
This commit is contained in:
Saurabh Shah 2012-08-16 10:19:07 -07:00 committed by Andrew Sutherland
parent 54cbb6f94f
commit 1be2fcd4f0
2 changed files with 11 additions and 1 deletions
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2
libhwcomposer/hwc.cpp
View File

@ -180,7 +180,7 @@ static int hwc_set(hwc_composer_device_t *dev,
ctx->mExtDisplay->commit();
} else {
ctx->mOverlay->setState(ovutils::OV_CLOSED);
ctx->qbuf->unlockAllPrevious();
ctx->qbuf->unlockAll();
}
if(!ctx->overlayInUse)

10
libhwcomposer/hwc_qbuf.h
View File

@ -33,7 +33,10 @@ class QueuedBufferStore {
}
~QueuedBufferStore() {}
void lockAndAdd(private_handle_t*);
//Unlocks only previous and makes the current as previous
void unlockAllPrevious();
//Unlocks previous as well as current, useful in suspend case
void unlockAll();
private:
QueuedBufferStore& operator=(const QueuedBufferStore&);
@ -70,6 +73,13 @@ inline void QueuedBufferStore::unlockAllPrevious() {
clearCurrent();
}
inline void QueuedBufferStore::unlockAll() {
//Unlocks prev and moves current to prev
unlockAllPrevious();
//Unlocks the newly populated prev if any.
unlockAllPrevious();
}
//Clear currentbuf store
inline void QueuedBufferStore::clearCurrent() {
for(int i = 0; i < MAX_QUEUED_BUFS; i++)