media.c2 aidl: No sync fence return from fetchGraphicBlock

    c2_status_t res = _fetchGraphicBlock(

            width, height, format, usage, kBlockingFetchTimeoutNs, &origId, block, &fence);

    if (res == C2_BLOCKING) {

    if (res == C2_TIMED_OUT) {

        // SyncFence waiting timeout.

        // Usually HAL treats C2_TIMED_OUT as an irrecoverable error.

        // We want HAL to re-try.

        return C2_BLOCKING;

    }

    if (res != C2_OK) {

    return res;

}

    // TODO: bundle the fence to the block. Are API changes required?

    res = fence.wait(kSyncFenceWaitNs);

    if (res != C2_OK) {

        bool aidlRet = true;

        ::ndk::ScopedAStatus status = mIgba->deallocate(origId, &aidlRet);

        ALOGE("Waiting a sync fence failed %d aidl(%d: %d)",

              res, status.isOk(), aidlRet);

    }

    return C2_OK;

}

c2_status_t C2IgbaBlockPool::fetchGraphicBlock(

        uint32_t width, uint32_t height, uint32_t format, C2MemoryUsage usage,

        std::shared_ptr<C2GraphicBlock> *block, C2Fence *fence) {

    uint64_t origId;

    return _fetchGraphicBlock(width, height, format, usage, 0LL, &origId, block, fence);

    c2_status_t res = _fetchGraphicBlock(width, height, format, usage, 0LL, &origId, block, fence);

    if (res == C2_TIMED_OUT) {

        *fence = C2Fence();

        return C2_BLOCKING;

    }

    return res;

}

c2_status_t C2IgbaBlockPool::_fetchGraphicBlock(

            }

        }

        *fence = _C2FenceFactory::CreateSyncFence(allocation.fence.release());

        C2Fence syncFence  = _C2FenceFactory::CreateSyncFence(allocation.fence.release());

        AHardwareBuffer *ahwb = allocation.buffer.release(); // This is acquired.

        CHECK(AHardwareBuffer_getId(ahwb, origId) == ::android::OK);

        c2_status_t res = CreateGraphicBlockFromAhwb(ahwb, mAllocator, mIgba, block);

        // We are waiting for SyncFence here for backward compatibility.

        // H/W based Sync Fence could be returned to improve pipeline latency.

        //

        // TODO: Add a component configuration for returning sync fence

        // from fetchGraphicBlock() as the C2Fence output param(b/322283520).

        // In the case C2_OK along with GraphicBlock must be returned together.

        c2_status_t res = syncFence.wait(kSyncFenceWaitNs);

        if (res != C2_OK) {

            AHardwareBuffer_release(ahwb);

            bool aidlRet = true;

            ::ndk::ScopedAStatus status = mIgba->deallocate(*origId, &aidlRet);

            ALOGE("Waiting a sync fence failed %d aidl(%d: %d)",

                  res, status.isOk(), aidlRet);

            return C2_TIMED_OUT;

        }

        res = CreateGraphicBlockFromAhwb(ahwb, mAllocator, mIgba, block);

        AHardwareBuffer_release(ahwb);

        if (res != C2_OK) {

            bool aidlRet = true;