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Commit c219b1ef authored by Dave Sparks's avatar Dave Sparks Committed by Android Git Automerger
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am 7ab900ed: Merge change Ic8093c11 into eclair 

Merge commit '7ab900edd69324e5eeb2c6b01ef3ef5e836689a3' into eclair-mr2

* commit '7ab900edd69324e5eeb2c6b01ef3ef5e836689a3':
  Hold a lock while we access the preview heap.
parents b26ee59c ead5bb7e

camera/libcameraservice/CameraService.cpp

+14 −7
Original line number Diff line number Diff line
@@ -1215,20 +1215,27 @@ void CameraService::Client::copyFrameAndPostCopiedFrame(const sp<ICameraClient>& 
    // the callback. For efficiency, reuse the same MemoryHeapBase

    // provided it's big enough. Don't allocate the memory or

    // perform the copy if there's no callback.



    // hold the lock while we grab a reference to the preview buffer

    sp<MemoryHeapBase> previewBuffer;

    {

        Mutex::Autolock lock(mLock);

        if (mPreviewBuffer == 0) {

            mPreviewBuffer = new MemoryHeapBase(size, 0, NULL);

        } else if (size > mPreviewBuffer->virtualSize()) {

            mPreviewBuffer.clear();

            mPreviewBuffer = new MemoryHeapBase(size, 0, NULL);

        }

        if (mPreviewBuffer == 0) {

            LOGE("failed to allocate space for preview buffer");

            return;

        }

        previewBuffer = mPreviewBuffer;

    }

    memcpy(mPreviewBuffer->base(),

    memcpy(previewBuffer->base(),

           (uint8_t *)heap->base() + offset, size);



    sp<MemoryBase> frame = new MemoryBase(mPreviewBuffer, 0, size);

    sp<MemoryBase> frame = new MemoryBase(previewBuffer, 0, size);

    if (frame == 0) {

        LOGE("failed to allocate space for frame callback");

        return;