diff --git a/include/gui/GLConsumer.h b/include/gui/GLConsumer.h
new file mode 100644
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--- /dev/null
+++ b/include/gui/GLConsumer.h
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+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef ANDROID_GUI_CONSUMER_H
+#define ANDROID_GUI_CONSUMER_H
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/BufferQueue.h>
+#include <gui/ConsumerBase.h>
+
+#include <ui/GraphicBuffer.h>
+
+#include <utils/String8.h>
+#include <utils/Vector.h>
+#include <utils/threads.h>
+
+#define ANDROID_GRAPHICS_SURFACETEXTURE_JNI_ID "mSurfaceTexture"
+#define ANDROID_GRAPHICS_FRAMEAVAILABLELISTENER_JNI_ID \
+                                         "mFrameAvailableListener"
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+
+class String8;
+
+/*
+ * GLConsumer consumes buffers of graphics data from a BufferQueue,
+ * and makes them available to OpenGL as a texture.
+ *
+ * A typical usage pattern is to set up the GLConsumer with the
+ * desired options, and call updateTexImage() when a new frame is desired.
+ * If a new frame is available, the texture will be updated.  If not,
+ * the previous contents are retained.
+ *
+ * By default, the texture is attached to the GL_TEXTURE_EXTERNAL_OES
+ * texture target, in the EGL context of the first thread that calls
+ * updateTexImage().
+ *
+ * This class was previously called SurfaceTexture.
+ */
+class GLConsumer : public ConsumerBase {
+public:
+    typedef ConsumerBase::FrameAvailableListener FrameAvailableListener;
+
+    // GLConsumer constructs a new GLConsumer object. tex indicates the
+    // name of the OpenGL ES texture to which images are to be streamed.
+    // allowSynchronousMode specifies whether or not synchronous mode can be
+    // enabled. texTarget specifies the OpenGL ES texture target to which the
+    // texture will be bound in updateTexImage. useFenceSync specifies whether
+    // fences should be used to synchronize access to buffers if that behavior
+    // is enabled at compile-time. A custom bufferQueue can be specified
+    // if behavior for queue/dequeue/connect etc needs to be customized.
+    // Otherwise a default BufferQueue will be created and used.
+    //
+    // For legacy reasons, the GLConsumer is created in a state where it is
+    // considered attached to an OpenGL ES context for the purposes of the
+    // attachToContext and detachFromContext methods. However, despite being
+    // considered "attached" to a context, the specific OpenGL ES context
+    // doesn't get latched until the first call to updateTexImage. After that
+    // point, all calls to updateTexImage must be made with the same OpenGL ES
+    // context current.
+    //
+    // A GLConsumer may be detached from one OpenGL ES context and then
+    // attached to a different context using the detachFromContext and
+    // attachToContext methods, respectively. The intention of these methods is
+    // purely to allow a GLConsumer to be transferred from one consumer
+    // context to another. If such a transfer is not needed there is no
+    // requirement that either of these methods be called.
+    GLConsumer(GLuint tex, bool allowSynchronousMode = true,
+            GLenum texTarget = GL_TEXTURE_EXTERNAL_OES, bool useFenceSync = true,
+            const sp<BufferQueue> &bufferQueue = 0);
+
+    // updateTexImage acquires the most recently queued buffer, and sets the
+    // image contents of the target texture to it.
+    //
+    // This call may only be made while the OpenGL ES context to which the
+    // target texture belongs is bound to the calling thread.
+    //
+    // This calls doGLFenceWait to ensure proper synchronization.
+    status_t updateTexImage();
+
+    // setReleaseFence stores a fence file descriptor that will signal when the
+    // current buffer is no longer being read. This fence will be returned to
+    // the producer when the current buffer is released by updateTexImage().
+    // Multiple fences can be set for a given buffer; they will be merged into
+    // a single union fence. The GLConsumer will close the file descriptor
+    // when finished with it.
+    void setReleaseFence(int fenceFd);
+
+    // setDefaultMaxBufferCount sets the default limit on the maximum number
+    // of buffers that will be allocated at one time. The image producer may
+    // override the limit.
+    status_t setDefaultMaxBufferCount(int bufferCount);
+
+    // getTransformMatrix retrieves the 4x4 texture coordinate transform matrix
+    // associated with the texture image set by the most recent call to
+    // updateTexImage.
+    //
+    // This transform matrix maps 2D homogeneous texture coordinates of the form
+    // (s, t, 0, 1) with s and t in the inclusive range [0, 1] to the texture
+    // coordinate that should be used to sample that location from the texture.
+    // Sampling the texture outside of the range of this transform is undefined.
+    //
+    // This transform is necessary to compensate for transforms that the stream
+    // content producer may implicitly apply to the content. By forcing users of
+    // a GLConsumer to apply this transform we avoid performing an extra
+    // copy of the data that would be needed to hide the transform from the
+    // user.
+    //
+    // The matrix is stored in column-major order so that it may be passed
+    // directly to OpenGL ES via the glLoadMatrixf or glUniformMatrix4fv
+    // functions.
+    void getTransformMatrix(float mtx[16]);
+
+    // getTimestamp retrieves the timestamp associated with the texture image
+    // set by the most recent call to updateTexImage.
+    //
+    // The timestamp is in nanoseconds, and is monotonically increasing. Its
+    // other semantics (zero point, etc) are source-dependent and should be
+    // documented by the source.
+    int64_t getTimestamp();
+
+    // setDefaultBufferSize is used to set the size of buffers returned by
+    // requestBuffers when a with and height of zero is requested.
+    // A call to setDefaultBufferSize() may trigger requestBuffers() to
+    // be called from the client.
+    // The width and height parameters must be no greater than the minimum of
+    // GL_MAX_VIEWPORT_DIMS and GL_MAX_TEXTURE_SIZE (see: glGetIntegerv).
+    // An error due to invalid dimensions might not be reported until
+    // updateTexImage() is called.
+    status_t setDefaultBufferSize(uint32_t width, uint32_t height);
+
+    // setFilteringEnabled sets whether the transform matrix should be computed
+    // for use with bilinear filtering.
+    void setFilteringEnabled(bool enabled);
+
+    // getCurrentBuffer returns the buffer associated with the current image.
+    sp<GraphicBuffer> getCurrentBuffer() const;
+
+    // getCurrentTextureTarget returns the texture target of the current
+    // texture as returned by updateTexImage().
+    GLenum getCurrentTextureTarget() const;
+
+    // getCurrentCrop returns the cropping rectangle of the current buffer.
+    Rect getCurrentCrop() const;
+
+    // getCurrentTransform returns the transform of the current buffer.
+    uint32_t getCurrentTransform() const;
+
+    // getCurrentScalingMode returns the scaling mode of the current buffer.
+    uint32_t getCurrentScalingMode() const;
+
+    // getCurrentFence returns the fence indicating when the current buffer is
+    // ready to be read from.
+    sp<Fence> getCurrentFence() const;
+
+    // doGLFenceWait inserts a wait command into the OpenGL ES command stream
+    // to ensure that it is safe for future OpenGL ES commands to access the
+    // current texture buffer.
+    status_t doGLFenceWait() const;
+
+    // isSynchronousMode returns whether the GLConsumer is currently in
+    // synchronous mode.
+    bool isSynchronousMode() const;
+
+    // set the name of the GLConsumer that will be used to identify it in
+    // log messages.
+    void setName(const String8& name);
+
+    // These functions call the corresponding BufferQueue implementation
+    // so the refactoring can proceed smoothly
+    status_t setDefaultBufferFormat(uint32_t defaultFormat);
+    status_t setConsumerUsageBits(uint32_t usage);
+    status_t setTransformHint(uint32_t hint);
+    virtual status_t setSynchronousMode(bool enabled);
+
+    // getBufferQueue returns the BufferQueue object to which this
+    // GLConsumer is connected.
+    sp<BufferQueue> getBufferQueue() const {
+        return mBufferQueue;
+    }
+
+    // detachFromContext detaches the GLConsumer from the calling thread's
+    // current OpenGL ES context.  This context must be the same as the context
+    // that was current for previous calls to updateTexImage.
+    //
+    // Detaching a GLConsumer from an OpenGL ES context will result in the
+    // deletion of the OpenGL ES texture object into which the images were being
+    // streamed.  After a GLConsumer has been detached from the OpenGL ES
+    // context calls to updateTexImage will fail returning INVALID_OPERATION
+    // until the GLConsumer is attached to a new OpenGL ES context using the
+    // attachToContext method.
+    status_t detachFromContext();
+
+    // attachToContext attaches a GLConsumer that is currently in the
+    // 'detached' state to the current OpenGL ES context.  A GLConsumer is
+    // in the 'detached' state iff detachFromContext has successfully been
+    // called and no calls to attachToContext have succeeded since the last
+    // detachFromContext call.  Calls to attachToContext made on a
+    // GLConsumer that is not in the 'detached' state will result in an
+    // INVALID_OPERATION error.
+    //
+    // The tex argument specifies the OpenGL ES texture object name in the
+    // new context into which the image contents will be streamed.  A successful
+    // call to attachToContext will result in this texture object being bound to
+    // the texture target and populated with the image contents that were
+    // current at the time of the last call to detachFromContext.
+    status_t attachToContext(GLuint tex);
+
+protected:
+
+    // abandonLocked overrides the ConsumerBase method to clear
+    // mCurrentTextureBuf in addition to the ConsumerBase behavior.
+    virtual void abandonLocked();
+
+    // dumpLocked overrides the ConsumerBase method to dump GLConsumer-
+    // specific info in addition to the ConsumerBase behavior.
+    virtual void dumpLocked(String8& result, const char* prefix, char* buffer,
+           size_t size) const;
+
+    // acquireBufferLocked overrides the ConsumerBase method to update the
+    // mEglSlots array in addition to the ConsumerBase behavior.
+    virtual status_t acquireBufferLocked(BufferQueue::BufferItem *item);
+
+    // releaseBufferLocked overrides the ConsumerBase method to update the
+    // mEglSlots array in addition to the ConsumerBase.
+    virtual status_t releaseBufferLocked(int buf, EGLDisplay display,
+           EGLSyncKHR eglFence);
+
+    status_t releaseBufferLocked(int buf, EGLSyncKHR eglFence) {
+        return releaseBufferLocked(buf, mEglDisplay, eglFence);
+    }
+
+    static bool isExternalFormat(uint32_t format);
+
+    // This releases the buffer in the slot referenced by mCurrentTexture,
+    // then updates state to refer to the BufferItem, which must be a
+    // newly-acquired buffer.
+    status_t releaseAndUpdateLocked(const BufferQueue::BufferItem& item);
+
+    // Binds mTexName and the current buffer to mTexTarget.  Uses
+    // mCurrentTexture if it's set, mCurrentTextureBuf if not.  If the
+    // bind succeeds, this calls doGLFenceWait.
+    status_t bindTextureImageLocked();
+
+    // Gets the current EGLDisplay and EGLContext values, and compares them
+    // to mEglDisplay and mEglContext.  If the fields have been previously
+    // set, the values must match; if not, the fields are set to the current
+    // values.
+    status_t checkAndUpdateEglStateLocked();
+
+    // If set, GLConsumer will use the EGL_ANDROID_native_fence_sync
+    // extension to create Android native fences for GLES activity.
+    static const bool sUseNativeFenceSync;
+
+private:
+    // createImage creates a new EGLImage from a GraphicBuffer.
+    EGLImageKHR createImage(EGLDisplay dpy,
+            const sp<GraphicBuffer>& graphicBuffer);
+
+    // freeBufferLocked frees up the given buffer slot.  If the slot has been
+    // initialized this will release the reference to the GraphicBuffer in that
+    // slot and destroy the EGLImage in that slot.  Otherwise it has no effect.
+    //
+    // This method must be called with mMutex locked.
+    virtual void freeBufferLocked(int slotIndex);
+
+    // computeCurrentTransformMatrixLocked computes the transform matrix for the
+    // current texture.  It uses mCurrentTransform and the current GraphicBuffer
+    // to compute this matrix and stores it in mCurrentTransformMatrix.
+    // mCurrentTextureBuf must not be NULL.
+    void computeCurrentTransformMatrixLocked();
+
+    // doGLFenceWaitLocked inserts a wait command into the OpenGL ES command
+    // stream to ensure that it is safe for future OpenGL ES commands to
+    // access the current texture buffer.
+    status_t doGLFenceWaitLocked() const;
+
+    // syncForReleaseLocked performs the synchronization needed to release the
+    // current slot from an OpenGL ES context.  If needed it will set the
+    // current slot's fence to guard against a producer accessing the buffer
+    // before the outstanding accesses have completed.
+    status_t syncForReleaseLocked(EGLDisplay dpy);
+
+    // Normally, when we bind a buffer to a texture target, we bind a buffer
+    // that is referenced by an entry in mEglSlots.  In some situations we
+    // have a buffer in mCurrentTextureBuf, but no corresponding entry for
+    // it in our slot array.  bindUnslottedBuffer handles that situation by
+    // binding the buffer without touching the EglSlots.
+    status_t bindUnslottedBufferLocked(EGLDisplay dpy);
+
+    // The default consumer usage flags that GLConsumer always sets on its
+    // BufferQueue instance; these will be OR:d with any additional flags passed
+    // from the GLConsumer user. In particular, GLConsumer will always
+    // consume buffers as hardware textures.
+    static const uint32_t DEFAULT_USAGE_FLAGS = GraphicBuffer::USAGE_HW_TEXTURE;
+
+    // mCurrentTextureBuf is the graphic buffer of the current texture. It's
+    // possible that this buffer is not associated with any buffer slot, so we
+    // must track it separately in order to support the getCurrentBuffer method.
+    sp<GraphicBuffer> mCurrentTextureBuf;
+
+    // mCurrentCrop is the crop rectangle that applies to the current texture.
+    // It gets set each time updateTexImage is called.
+    Rect mCurrentCrop;
+
+    // mCurrentTransform is the transform identifier for the current texture. It
+    // gets set each time updateTexImage is called.
+    uint32_t mCurrentTransform;
+
+    // mCurrentScalingMode is the scaling mode for the current texture. It gets
+    // set to each time updateTexImage is called.
+    uint32_t mCurrentScalingMode;
+
+    // mCurrentFence is the fence received from BufferQueue in updateTexImage.
+    sp<Fence> mCurrentFence;
+
+    // mCurrentTransformMatrix is the transform matrix for the current texture.
+    // It gets computed by computeTransformMatrix each time updateTexImage is
+    // called.
+    float mCurrentTransformMatrix[16];
+
+    // mCurrentTimestamp is the timestamp for the current texture. It
+    // gets set each time updateTexImage is called.
+    int64_t mCurrentTimestamp;
+
+    uint32_t mDefaultWidth, mDefaultHeight;
+
+    // mFilteringEnabled indicates whether the transform matrix is computed for
+    // use with bilinear filtering. It defaults to true and is changed by
+    // setFilteringEnabled().
+    bool mFilteringEnabled;
+
+    // mTexName is the name of the OpenGL texture to which streamed images will
+    // be bound when updateTexImage is called. It is set at construction time
+    // and can be changed with a call to attachToContext.
+    GLuint mTexName;
+
+    // mUseFenceSync indicates whether creation of the EGL_KHR_fence_sync
+    // extension should be used to prevent buffers from being dequeued before
+    // it's safe for them to be written. It gets set at construction time and
+    // never changes.
+    const bool mUseFenceSync;
+
+    // mTexTarget is the GL texture target with which the GL texture object is
+    // associated.  It is set in the constructor and never changed.  It is
+    // almost always GL_TEXTURE_EXTERNAL_OES except for one use case in Android
+    // Browser.  In that case it is set to GL_TEXTURE_2D to allow
+    // glCopyTexSubImage to read from the texture.  This is a hack to work
+    // around a GL driver limitation on the number of FBO attachments, which the
+    // browser's tile cache exceeds.
+    const GLenum mTexTarget;
+
+    // EGLSlot contains the information and object references that
+    // GLConsumer maintains about a BufferQueue buffer slot.
+    struct EglSlot {
+        EglSlot()
+        : mEglImage(EGL_NO_IMAGE_KHR),
+          mEglFence(EGL_NO_SYNC_KHR) {
+        }
+
+        // mEglImage is the EGLImage created from mGraphicBuffer.
+        EGLImageKHR mEglImage;
+
+        // mFence is the EGL sync object that must signal before the buffer
+        // associated with this buffer slot may be dequeued. It is initialized
+        // to EGL_NO_SYNC_KHR when the buffer is created and (optionally, based
+        // on a compile-time option) set to a new sync object in updateTexImage.
+        EGLSyncKHR mEglFence;
+    };
+
+    // mEglDisplay is the EGLDisplay with which this GLConsumer is currently
+    // associated.  It is intialized to EGL_NO_DISPLAY and gets set to the
+    // current display when updateTexImage is called for the first time and when
+    // attachToContext is called.
+    EGLDisplay mEglDisplay;
+
+    // mEglContext is the OpenGL ES context with which this GLConsumer is
+    // currently associated.  It is initialized to EGL_NO_CONTEXT and gets set
+    // to the current GL context when updateTexImage is called for the first
+    // time and when attachToContext is called.
+    EGLContext mEglContext;
+
+    // mEGLSlots stores the buffers that have been allocated by the BufferQueue
+    // for each buffer slot.  It is initialized to null pointers, and gets
+    // filled in with the result of BufferQueue::acquire when the
+    // client dequeues a buffer from a
+    // slot that has not yet been used. The buffer allocated to a slot will also
+    // be replaced if the requested buffer usage or geometry differs from that
+    // of the buffer allocated to a slot.
+    EglSlot mEglSlots[BufferQueue::NUM_BUFFER_SLOTS];
+
+    // mCurrentTexture is the buffer slot index of the buffer that is currently
+    // bound to the OpenGL texture. It is initialized to INVALID_BUFFER_SLOT,
+    // indicating that no buffer slot is currently bound to the texture. Note,
+    // however, that a value of INVALID_BUFFER_SLOT does not necessarily mean
+    // that no buffer is bound to the texture. A call to setBufferCount will
+    // reset mCurrentTexture to INVALID_BUFFER_SLOT.
+    int mCurrentTexture;
+
+    // mAttached indicates whether the ConsumerBase is currently attached to
+    // an OpenGL ES context.  For legacy reasons, this is initialized to true,
+    // indicating that the ConsumerBase is considered to be attached to
+    // whatever context is current at the time of the first updateTexImage call.
+    // It is set to false by detachFromContext, and then set to true again by
+    // attachToContext.
+    bool mAttached;
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_CONSUMER_H
