diff --git a/libs/gui/BufferQueueProducer.cpp b/libs/gui/BufferQueueProducer.cpp
new file mode 100644
index 0000000..9d569ad
--- /dev/null
+++ b/libs/gui/BufferQueueProducer.cpp
@@ -0,0 +1,705 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <gui/BufferItem.h>
+#include <gui/BufferQueueCore.h>
+#include <gui/BufferQueueProducer.h>
+#include <gui/IConsumerListener.h>
+#include <gui/IGraphicBufferAlloc.h>
+
+#include <utils/Log.h>
+#include <utils/Trace.h>
+
+namespace android {
+
+BufferQueueProducer::BufferQueueProducer(const sp<BufferQueueCore>& core) :
+    mCore(core),
+    mSlots(core->mSlots),
+    mConsumerName() {}
+
+BufferQueueProducer::~BufferQueueProducer() {}
+
+status_t BufferQueueProducer::requestBuffer(int slot, sp<GraphicBuffer>* buf) {
+    ATRACE_CALL();
+    BQ_LOGV("requestBuffer: slot %d", slot);
+    Mutex::Autolock lock(mCore->mMutex);
+
+    if (mCore->mIsAbandoned) {
+        BQ_LOGE("requestBuffer: BufferQueue has been abandoned");
+        return NO_INIT;
+    }
+
+    if (slot < 0 || slot >= BufferQueueCore::NUM_BUFFER_SLOTS) {
+        BQ_LOGE("requestBuffer: slot index %d out of range [0, %d)",
+                slot, BufferQueueCore::NUM_BUFFER_SLOTS);
+        return BAD_VALUE;
+    } else if (mSlots[slot].mBufferState != BufferSlot::DEQUEUED) {
+        BQ_LOGE("requestBuffer: slot %d is not owned by the producer "
+                "(state = %d)", slot, mSlots[slot].mBufferState);
+        return BAD_VALUE;
+    }
+
+    mSlots[slot].mRequestBufferCalled = true;
+    *buf = mSlots[slot].mGraphicBuffer;
+    return NO_ERROR;
+}
+
+status_t BufferQueueProducer::setBufferCount(int bufferCount) {
+    ATRACE_CALL();
+    BQ_LOGV("setBufferCount: count = %d", bufferCount);
+
+    sp<IConsumerListener> listener;
+    { // Autolock scope
+        Mutex::Autolock lock(mCore->mMutex);
+
+        if (mCore->mIsAbandoned) {
+            BQ_LOGE("setBufferCount: BufferQueue has been abandoned");
+            return NO_INIT;
+        }
+
+        if (bufferCount > BufferQueueCore::NUM_BUFFER_SLOTS) {
+            BQ_LOGE("setBufferCount: bufferCount %d too large (max %d)",
+                    bufferCount, BufferQueueCore::NUM_BUFFER_SLOTS);
+            return BAD_VALUE;
+        }
+
+        // There must be no dequeued buffers when changing the buffer count.
+        for (int s = 0; s < BufferQueueCore::NUM_BUFFER_SLOTS; ++s) {
+            if (mSlots[s].mBufferState == BufferSlot::DEQUEUED) {
+                BQ_LOGE("setBufferCount: buffer owned by producer");
+                return -EINVAL;
+            }
+        }
+
+        if (bufferCount == 0) {
+            mCore->mOverrideMaxBufferCount = 0;
+            mCore->mDequeueCondition.broadcast();
+            return NO_ERROR;
+        }
+
+        const int minBufferSlots = mCore->getMinMaxBufferCountLocked(false);
+        if (bufferCount < minBufferSlots) {
+            BQ_LOGE("setBufferCount: requested buffer count %d is less than "
+                    "minimum %d", bufferCount, minBufferSlots);
+            return BAD_VALUE;
+        }
+
+        // Here we are guaranteed that the producer doesn't have any dequeued
+        // buffers and will release all of its buffer references. We don't
+        // clear the queue, however, so that currently queued buffers still
+        // get displayed.
+        mCore->freeAllBuffersLocked();
+        mCore->mOverrideMaxBufferCount = bufferCount;
+        mCore->mDequeueCondition.broadcast();
+        listener = mCore->mConsumerListener;
+    } // Autolock scope
+
+    // Call back without lock held
+    if (listener != NULL) {
+        listener->onBuffersReleased();
+    }
+
+    return NO_ERROR;
+}
+
+status_t BufferQueueProducer::dequeueBuffer(int *outSlot,
+        sp<android::Fence> *outFence, bool async,
+        uint32_t width, uint32_t height, uint32_t format, uint32_t usage) {
+    ATRACE_CALL();
+    { // Autolock scope
+        Mutex::Autolock lock(mCore->mMutex);
+        mConsumerName = mCore->mConsumerName;
+    } // Autolock scope
+
+    BQ_LOGV("dequeueBuffer: async=%s w=%u h=%u format=%#x, usage=%#x",
+            async ? "true" : "false", width, height, format, usage);
+
+    if ((width && !height) || (!width && height)) {
+        BQ_LOGE("dequeueBuffer: invalid size: w=%u h=%u", width, height);
+        return BAD_VALUE;
+    }
+
+    status_t returnFlags = NO_ERROR;
+    EGLDisplay eglDisplay = EGL_NO_DISPLAY;
+    EGLSyncKHR eglFence = EGL_NO_SYNC_KHR;
+
+    { // Autolock scope
+        Mutex::Autolock lock(mCore->mMutex);
+
+        if (format == 0) {
+            format = mCore->mDefaultBufferFormat;
+        }
+
+        // Enable the usage bits the consumer requested
+        usage |= mCore->mConsumerUsageBits;
+
+        int found = -1;
+        bool tryAgain = true;
+        while (tryAgain) {
+            if (mCore->mIsAbandoned) {
+                BQ_LOGE("dequeueBuffer: BufferQueue has been abandoned");
+                return NO_INIT;
+            }
+
+            const int maxBufferCount = mCore->getMaxBufferCountLocked(async);
+            if (async && mCore->mOverrideMaxBufferCount) {
+                // FIXME: Some drivers are manually setting the buffer count
+                // (which they shouldn't), so we do this extra test here to
+                // handle that case. This is TEMPORARY until we get this fixed.
+                if (mCore->mOverrideMaxBufferCount < maxBufferCount) {
+                    BQ_LOGE("dequeueBuffer: async mode is invalid with "
+                            "buffer count override");
+                    return BAD_VALUE;
+                }
+            }
+
+            // Free up any buffers that are in slots beyond the max buffer count
+            for (int s = maxBufferCount; s < BufferQueueCore::NUM_BUFFER_SLOTS; ++s) {
+                assert(mSlots[s].mBufferState == BufferSlot::FREE);
+                if (mSlots[s].mGraphicBuffer != NULL) {
+                    mCore->freeBufferLocked(s);
+                    returnFlags |= RELEASE_ALL_BUFFERS;
+                }
+            }
+
+            // Look for a free buffer to give to the client
+            found = BufferQueueCore::INVALID_BUFFER_SLOT;
+            int dequeuedCount = 0;
+            int acquiredCount = 0;
+            for (int s = 0; s < maxBufferCount; ++s) {
+                switch (mSlots[s].mBufferState) {
+                    case BufferSlot::DEQUEUED:
+                        ++dequeuedCount;
+                        break;
+                    case BufferSlot::ACQUIRED:
+                        ++acquiredCount;
+                        break;
+                    case BufferSlot::FREE:
+                        // We return the oldest of the free buffers to avoid
+                        // stalling the producer if possible, since the consumer
+                        // may still have pending reads of in-flight buffers
+                        if (found == BufferQueueCore::INVALID_BUFFER_SLOT ||
+                                mSlots[s].mFrameNumber < mSlots[found].mFrameNumber) {
+                            found = s;
+                        }
+                        break;
+                    default:
+                        break;
+                }
+            }
+
+            // Producers are not allowed to dequeue more than one buffer if they
+            // did not set a buffer count
+            if (!mCore->mOverrideMaxBufferCount && dequeuedCount) {
+                BQ_LOGE("dequeueBuffer: can't dequeue multiple buffers "
+                        "without setting the buffer count");
+                return -EINVAL;
+            }
+
+            // See whether a buffer has been queued since the last
+            // setBufferCount so we know whether to perform the min undequeued
+            // buffers check below
+            if (mCore->mBufferHasBeenQueued) {
+                // Make sure the producer is not trying to dequeue more buffers
+                // than allowed
+                const int newUndequeuedCount =
+                        maxBufferCount - (dequeuedCount + 1);
+                const int minUndequeuedCount =
+                        mCore->getMinUndequeuedBufferCountLocked(async);
+                if (newUndequeuedCount < minUndequeuedCount) {
+                    BQ_LOGE("dequeueBuffer: min undequeued buffer count (%d) "
+                            "exceeded (dequeued=%d undequeued=%d)",
+                            minUndequeuedCount, dequeuedCount,
+                            newUndequeuedCount);
+                    return -EBUSY;
+                }
+            }
+
+            // If no buffer is found, wait for a buffer to be released or for
+            // the max buffer count to change
+            tryAgain = (found == BufferQueueCore::INVALID_BUFFER_SLOT);
+            if (tryAgain) {
+                // Return an error if we're in non-blocking mode (producer and
+                // consumer are controlled by the application).
+                // However, the consumer is allowed to briefly acquire an extra
+                // buffer (which could cause us to have to wait here), which is
+                // okay, since it is only used to implement an atomic acquire +
+                // release (e.g., in GLConsumer::updateTexImage())
+                if (mCore->mDequeueBufferCannotBlock &&
+                        (acquiredCount <= mCore->mMaxAcquiredBufferCount)) {
+                    return WOULD_BLOCK;
+                }
+                mCore->mDequeueCondition.wait(mCore->mMutex);
+            }
+        } // while (tryAgain)
+
+        // This should not happen
+        if (found == BufferQueueCore::INVALID_BUFFER_SLOT) {
+            BQ_LOGE("dequeueBuffer: no available buffer slots");
+            return -EBUSY;
+        }
+
+        *outSlot = found;
+        ATRACE_BUFFER_INDEX(found);
+
+        const bool useDefaultSize = !width && !height;
+        if (useDefaultSize) {
+            width = mCore->mDefaultWidth;
+            height = mCore->mDefaultHeight;
+        }
+
+        mSlots[found].mBufferState = BufferSlot::DEQUEUED;
+
+        const sp<GraphicBuffer>& buffer(mSlots[found].mGraphicBuffer);
+        if ((buffer == NULL) ||
+                (static_cast<uint32_t>(buffer->width) != width) ||
+                (static_cast<uint32_t>(buffer->height) != height) ||
+                (static_cast<uint32_t>(buffer->format) != format) ||
+                ((static_cast<uint32_t>(buffer->usage) & usage) != usage))
+        {
+            mSlots[found].mAcquireCalled = false;
+            mSlots[found].mGraphicBuffer = NULL;
+            mSlots[found].mRequestBufferCalled = false;
+            mSlots[found].mEglDisplay = EGL_NO_DISPLAY;
+            mSlots[found].mEglFence = EGL_NO_SYNC_KHR;
+            mSlots[found].mFence = Fence::NO_FENCE;
+
+            returnFlags |= BUFFER_NEEDS_REALLOCATION;
+        }
+
+        if (CC_UNLIKELY(mSlots[found].mFence == NULL)) {
+            BQ_LOGE("dequeueBuffer: about to return a NULL fence - "
+                    "slot=%d w=%d h=%d format=%u",
+                    found, buffer->width, buffer->height, buffer->format);
+        }
+
+        eglDisplay = mSlots[found].mEglDisplay;
+        eglFence = mSlots[found].mEglFence;
+        *outFence = mSlots[found].mFence;
+        mSlots[found].mEglFence = EGL_NO_SYNC_KHR;
+        mSlots[found].mFence = Fence::NO_FENCE;
+    } // Autolock scope
+
+    if (returnFlags & BUFFER_NEEDS_REALLOCATION) {
+        status_t error;
+        sp<GraphicBuffer> graphicBuffer(mCore->mAllocator->createGraphicBuffer(
+                    width, height, format, usage, &error));
+        if (graphicBuffer == NULL) {
+            BQ_LOGE("dequeueBuffer: createGraphicBuffer failed");
+            return error;
+        }
+
+        { // Autolock scope
+            Mutex::Autolock lock(mCore->mMutex);
+
+            if (mCore->mIsAbandoned) {
+                BQ_LOGE("dequeueBuffer: BufferQueue has been abandoned");
+                return NO_INIT;
+            }
+
+            mSlots[*outSlot].mFrameNumber = ~0;
+            mSlots[*outSlot].mGraphicBuffer = graphicBuffer;
+        } // Autolock scope
+    }
+
+    if (eglFence != EGL_NO_SYNC_KHR) {
+        EGLint result = eglClientWaitSyncKHR(eglDisplay, eglFence, 0,
+                1000000000);
+        // If something goes wrong, log the error, but return the buffer without
+        // synchronizing access to it. It's too late at this point to abort the
+        // dequeue operation.
+        if (result == EGL_FALSE) {
+            BQ_LOGE("dequeueBuffer: error %#x waiting for fence",
+                    eglGetError());
+        } else if (result == EGL_TIMEOUT_EXPIRED_KHR) {
+            BQ_LOGE("dequeueBuffer: timeout waiting for fence");
+        }
+        eglDestroySyncKHR(eglDisplay, eglFence);
+    }
+
+    BQ_LOGV("dequeueBuffer: returning slot=%d/%llu buf=%p flags=%#x", *outSlot,
+            mSlots[*outSlot].mFrameNumber,
+            mSlots[*outSlot].mGraphicBuffer->handle, returnFlags);
+
+    return returnFlags;
+}
+
+status_t BufferQueueProducer::queueBuffer(int slot,
+        const QueueBufferInput &input, QueueBufferOutput *output) {
+    ATRACE_CALL();
+    ATRACE_BUFFER_INDEX(slot);
+
+    int64_t timestamp;
+    bool isAutoTimestamp;
+    Rect crop;
+    int scalingMode;
+    uint32_t transform;
+    bool async;
+    sp<Fence> fence;
+    input.deflate(&timestamp, &isAutoTimestamp, &crop, &scalingMode, &transform,
+            &async, &fence);
+
+    if (fence == NULL) {
+        BQ_LOGE("queueBuffer: fence is NULL");
+        return BAD_VALUE;
+    }
+
+    switch (scalingMode) {
+        case NATIVE_WINDOW_SCALING_MODE_FREEZE:
+        case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW:
+        case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP:
+        case NATIVE_WINDOW_SCALING_MODE_NO_SCALE_CROP:
+            break;
+        default:
+            BQ_LOGE("queueBuffer: unknown scaling mode %d", scalingMode);
+            return -EINVAL;
+    }
+
+    sp<IConsumerListener> listener;
+    { // Autolock scope
+        Mutex::Autolock lock(mCore->mMutex);
+
+        if (mCore->mIsAbandoned) {
+            BQ_LOGE("queueBuffer: BufferQueue has been abandoned");
+            return NO_INIT;
+        }
+
+        const int maxBufferCount = mCore->getMaxBufferCountLocked(async);
+        if (async && mCore->mOverrideMaxBufferCount) {
+            // FIXME: Some drivers are manually setting the buffer count
+            // (which they shouldn't), so we do this extra test here to
+            // handle that case. This is TEMPORARY until we get this fixed.
+            if (mCore->mOverrideMaxBufferCount < maxBufferCount) {
+                BQ_LOGE("queueBuffer: async mode is invalid with "
+                        "buffer count override");
+                return BAD_VALUE;
+            }
+        }
+
+        if (slot < 0 || slot >= maxBufferCount) {
+            BQ_LOGE("queueBuffer: slot index %d out of range [0, %d)",
+                    slot, maxBufferCount);
+            return -EINVAL;
+        } else if (mSlots[slot].mBufferState != BufferSlot::DEQUEUED) {
+            BQ_LOGE("queueBuffer: slot %d is not owned by the producer "
+                    "(state = %d)", slot, mSlots[slot].mBufferState);
+            return -EINVAL;
+        } else if (!mSlots[slot].mRequestBufferCalled) {
+            BQ_LOGE("queueBuffer: slot %d was queued without requesting "
+                    "a buffer", slot);
+            return -EINVAL;
+        }
+
+        BQ_LOGV("queueBuffer: slot=%d/%llu time=%llu crop=[%d,%d,%d,%d] "
+                "transform=%#x scale=%s",
+                slot, mCore->mFrameCounter + 1, timestamp,
+                crop.left, crop.top, crop.right, crop.bottom,
+                transform, BufferItem::scalingModeName(scalingMode));
+
+        const sp<GraphicBuffer>& graphicBuffer(mSlots[slot].mGraphicBuffer);
+        Rect bufferRect(graphicBuffer->getWidth(), graphicBuffer->getHeight());
+        Rect croppedRect;
+        crop.intersect(bufferRect, &croppedRect);
+        if (croppedRect != crop) {
+            BQ_LOGE("queueBuffer: crop rect is not contained within the "
+                    "buffer in slot %d", slot);
+            return -EINVAL;
+        }
+
+        mSlots[slot].mFence = fence;
+        mSlots[slot].mBufferState = BufferSlot::QUEUED;
+        ++mCore->mFrameCounter;
+        mSlots[slot].mFrameNumber = mCore->mFrameCounter;
+
+        BufferItem item;
+        item.mAcquireCalled = mSlots[slot].mAcquireCalled;
+        item.mGraphicBuffer = mSlots[slot].mGraphicBuffer;
+        item.mCrop = crop;
+        item.mTransform = transform & ~NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY;
+        item.mTransformToDisplayInverse =
+                bool(transform & NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY);
+        item.mScalingMode = scalingMode;
+        item.mTimestamp = timestamp;
+        item.mIsAutoTimestamp = isAutoTimestamp;
+        item.mFrameNumber = mCore->mFrameCounter;
+        item.mSlot = slot;
+        item.mFence = fence;
+        item.mIsDroppable = mCore->mDequeueBufferCannotBlock || async;
+
+        if (mCore->mQueue.empty()) {
+            // When the queue is empty, we can ignore mDequeueBufferCannotBlock
+            // and simply queue this buffer
+            mCore->mQueue.push_back(item);
+            listener = mCore->mConsumerListener;
+        } else {
+            // When the queue is not empty, we need to look at the front buffer
+            // state to see if we need to replace it
+            BufferQueueCore::Fifo::iterator front(mCore->mQueue.begin());
+            if (front->mIsDroppable) {
+                // If the front queued buffer is still being tracked, we first
+                // mark it as freed
+                if (mCore->stillTracking(front)) {
+                    mSlots[front->mSlot].mBufferState = BufferSlot::FREE;
+                    // Reset the frame number of the freed buffer so that it is
+                    // the first in line to be dequeued again
+                    mSlots[front->mSlot].mFrameNumber = 0;
+                }
+                // Overwrite the droppable buffer with the incoming one
+                *front = item;
+            } else {
+                mCore->mQueue.push_back(item);
+                listener = mCore->mConsumerListener;
+            }
+        }
+
+        mCore->mBufferHasBeenQueued = true;
+        mCore->mDequeueCondition.broadcast();
+
+        output->inflate(mCore->mDefaultWidth, mCore->mDefaultHeight,
+                mCore->mTransformHint, mCore->mQueue.size());
+
+        ATRACE_INT(mCore->mConsumerName.string(), mCore->mQueue.size());
+    } // Autolock scope
+
+    // Call back without lock held
+    if (listener != NULL) {
+        listener->onFrameAvailable();
+    }
+
+    return NO_ERROR;
+}
+
+void BufferQueueProducer::cancelBuffer(int slot, const sp<Fence>& fence) {
+    ATRACE_CALL();
+    BQ_LOGV("cancelBuffer: slot %d", slot);
+    Mutex::Autolock lock(mCore->mMutex);
+
+    if (mCore->mIsAbandoned) {
+        BQ_LOGE("cancelBuffer: BufferQueue has been abandoned");
+        return;
+    }
+
+    if (slot < 0 || slot >= BufferQueueCore::NUM_BUFFER_SLOTS) {
+        BQ_LOGE("cancelBuffer: slot index %d out of range [0, %d)",
+                slot, BufferQueueCore::NUM_BUFFER_SLOTS);
+        return;
+    } else if (mSlots[slot].mBufferState != BufferSlot::DEQUEUED) {
+        BQ_LOGE("cancelBuffer: slot %d is not owned by the producer "
+                "(state = %d)", slot, mSlots[slot].mBufferState);
+        return;
+    } else if (fence == NULL) {
+        BQ_LOGE("cancelBuffer: fence is NULL");
+        return;
+    }
+
+    mSlots[slot].mBufferState = BufferSlot::FREE;
+    mSlots[slot].mFrameNumber = 0;
+    mSlots[slot].mFence = fence;
+    mCore->mDequeueCondition.broadcast();
+}
+
+int BufferQueueProducer::query(int what, int *outValue) {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mCore->mMutex);
+
+    if (outValue == NULL) {
+        BQ_LOGE("query: outValue was NULL");
+        return BAD_VALUE;
+    }
+
+    if (mCore->mIsAbandoned) {
+        BQ_LOGE("query: BufferQueue has been abandoned");
+        return NO_INIT;
+    }
+
+    int value;
+    switch (what) {
+        case NATIVE_WINDOW_WIDTH:
+            value = mCore->mDefaultWidth;
+            break;
+        case NATIVE_WINDOW_HEIGHT:
+            value = mCore->mDefaultHeight;
+            break;
+        case NATIVE_WINDOW_FORMAT:
+            value = mCore->mDefaultBufferFormat;
+            break;
+        case NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS:
+            value = mCore->getMinUndequeuedBufferCountLocked(false);
+            break;
+        case NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND:
+            value = (mCore->mQueue.size() > 1);
+            break;
+        case NATIVE_WINDOW_CONSUMER_USAGE_BITS:
+            value = mCore->mConsumerUsageBits;
+            break;
+        default:
+            return BAD_VALUE;
+    }
+
+    BQ_LOGV("query: %d? %d", what, value);
+    *outValue = value;
+    return NO_ERROR;
+}
+
+status_t BufferQueueProducer::connect(const sp<android::IBinder> &token,
+        int api, bool producerControlledByApp, QueueBufferOutput *output) {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mCore->mMutex);
+    mConsumerName = mCore->mConsumerName;
+    BQ_LOGV("connect(P): api=%d producerControlledByApp=%s", api,
+            producerControlledByApp ? "true" : "false");
+
+    // If we disconnect and reconnect quickly, we can be in a state where our
+    // slots are empty but we have many buffers in the queue. This can cause us
+    // to run out of memory if we outrun the consumer. Wait here if it looks
+    // like we have too many buffers queued up.
+    while (true) {
+        if (mCore->mIsAbandoned) {
+            BQ_LOGE("connect(P): BufferQueue has been abandoned");
+            return NO_INIT;
+        }
+
+        if (mCore->mConsumerListener == NULL) {
+            BQ_LOGE("connect(P): BufferQueue has no consumer");
+            return NO_INIT;
+        }
+
+        if (output == NULL) {
+            BQ_LOGE("connect(P): output was NULL");
+            return BAD_VALUE;
+        }
+
+        if (mCore->mConnectedApi != BufferQueueCore::NO_CONNECTED_API) {
+            BQ_LOGE("connect(P): already connected (cur=%d req=%d)",
+                    mCore->mConnectedApi, api);
+            return BAD_VALUE;
+        }
+
+        size_t maxBufferCount = mCore->getMaxBufferCountLocked(false);
+        if (mCore->mQueue.size() <= maxBufferCount) {
+            // The queue size seems small enough to proceed
+            // TODO: Make this bound tighter?
+            break;
+        }
+
+        BQ_LOGV("connect(P): queue size is %d, waiting", mCore->mQueue.size());
+        mCore->mDequeueCondition.wait(mCore->mMutex);
+    }
+
+    int status = NO_ERROR;
+    switch (api) {
+        case NATIVE_WINDOW_API_EGL:
+        case NATIVE_WINDOW_API_CPU:
+        case NATIVE_WINDOW_API_MEDIA:
+        case NATIVE_WINDOW_API_CAMERA:
+            mCore->mConnectedApi = api;
+            output->inflate(mCore->mDefaultWidth, mCore->mDefaultHeight,
+                    mCore->mTransformHint, mCore->mQueue.size());
+
+            // Set up a death notification so that we can disconnect
+            // automatically if the remote producer dies
+            if (token != NULL && token->remoteBinder() != NULL) {
+                status = token->linkToDeath(
+                        static_cast<IBinder::DeathRecipient*>(this));
+                if (status == NO_ERROR) {
+                    mCore->mConnectedProducerToken = token;
+                } else {
+                    BQ_LOGE("connect(P): linkToDeath failed: %s (%d)",
+                            strerror(-status), status);
+                }
+            }
+            break;
+        default:
+            BQ_LOGE("connect(P): unknown API %d", api);
+            status = BAD_VALUE;
+            break;
+    }
+
+    mCore->mBufferHasBeenQueued = false;
+    mCore->mDequeueBufferCannotBlock =
+            mCore->mConsumerControlledByApp && producerControlledByApp;
+
+    return status;
+}
+
+status_t BufferQueueProducer::disconnect(int api) {
+    ATRACE_CALL();
+    BQ_LOGV("disconnect(P): api %d", api);
+
+    int status = NO_ERROR;
+    sp<IConsumerListener> listener;
+    { // Autolock scope
+        Mutex::Autolock lock(mCore->mMutex);
+
+        if (mCore->mIsAbandoned) {
+            // It's not really an error to disconnect after the surface has
+            // been abandoned; it should just be a no-op.
+            return NO_ERROR;
+        }
+
+        switch (api) {
+            case NATIVE_WINDOW_API_EGL:
+            case NATIVE_WINDOW_API_CPU:
+            case NATIVE_WINDOW_API_MEDIA:
+            case NATIVE_WINDOW_API_CAMERA:
+                if (mCore->mConnectedApi == api) {
+                    mCore->freeAllBuffersLocked();
+
+                    // Remove our death notification callback if we have one
+                    sp<IBinder> token = mCore->mConnectedProducerToken;
+                    if (token != NULL) {
+                        // This can fail if we're here because of the death
+                        // notification, but we just ignore it
+                        token->unlinkToDeath(
+                                static_cast<IBinder::DeathRecipient*>(this));
+                    }
+                    mCore->mConnectedProducerToken = NULL;
+                    mCore->mConnectedApi = BufferQueueCore::NO_CONNECTED_API;
+                    mCore->mDequeueCondition.broadcast();
+                    listener = mCore->mConsumerListener;
+                } else {
+                    BQ_LOGE("disconnect(P): connected to another API "
+                            "(cur=%d req=%d)", mCore->mConnectedApi, api);
+                    status = -EINVAL;
+                }
+                break;
+            default:
+                BQ_LOGE("disconnect(P): unknown API %d", api);
+                status = -EINVAL;
+                break;
+        }
+    } // Autolock scope
+
+    // Call back without lock held
+    if (listener != NULL) {
+        listener->onBuffersReleased();
+    }
+
+    return status;
+}
+
+void BufferQueueProducer::binderDied(const wp<android::IBinder>& /* who */) {
+    // If we're here, it means that a producer we were connected to died.
+    // We're guaranteed that we are still connected to it because we remove
+    // this callback upon disconnect. It's therefore safe to read mConnectedApi
+    // without synchronization here.
+    int api = mCore->mConnectedApi;
+    disconnect(api);
+}
+
+} // namespace android