auto import from //depot/cupcake/@135843
diff --git a/libs/surfaceflinger/LayerBuffer.h b/libs/surfaceflinger/LayerBuffer.h
new file mode 100644
index 0000000..2dc77f1
--- /dev/null
+++ b/libs/surfaceflinger/LayerBuffer.h
@@ -0,0 +1,216 @@
+/*
+ * Copyright (C) 2007 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_LAYER_BUFFER_H
+#define ANDROID_LAYER_BUFFER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/IMemory.h>
+#include <private/ui/LayerState.h>
+#include <EGL/eglnatives.h>
+
+#include "LayerBase.h"
+#include "LayerBitmap.h"
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+class MemoryDealer;
+class Region;
+class OverlayRef;
+
+class LayerBuffer : public LayerBaseClient
+{
+ class Source : public LightRefBase<Source> {
+ public:
+ Source(LayerBuffer& layer);
+ virtual ~Source();
+ virtual void onDraw(const Region& clip) const;
+ virtual void onTransaction(uint32_t flags);
+ virtual void onVisibilityResolved(const Transform& planeTransform);
+ virtual void postBuffer(ssize_t offset);
+ virtual void unregisterBuffers();
+ virtual bool transformed() const;
+ protected:
+ LayerBuffer& mLayer;
+ };
+
+
+public:
+ static const uint32_t typeInfo;
+ static const char* const typeID;
+ virtual char const* getTypeID() const { return typeID; }
+ virtual uint32_t getTypeInfo() const { return typeInfo; }
+
+ LayerBuffer(SurfaceFlinger* flinger, DisplayID display,
+ Client* client, int32_t i);
+ virtual ~LayerBuffer();
+
+ virtual bool needsBlending() const;
+
+ virtual sp<LayerBaseClient::Surface> getSurface() const;
+ virtual void onDraw(const Region& clip) const;
+ virtual uint32_t doTransaction(uint32_t flags);
+ virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion);
+ virtual bool transformed() const;
+
+ status_t registerBuffers(const ISurface::BufferHeap& buffers);
+ void postBuffer(ssize_t offset);
+ void unregisterBuffers();
+ sp<OverlayRef> createOverlay(uint32_t w, uint32_t h, int32_t format);
+
+ sp<Source> getSource() const;
+ sp<Source> clearSource();
+ void setNeedsBlending(bool blending);
+ const Rect& getTransformedBounds() const {
+ return mTransformedBounds;
+ }
+
+private:
+ struct NativeBuffer {
+ copybit_image_t img;
+ copybit_rect_t crop;
+ };
+
+ class Buffer : public LightRefBase<Buffer> {
+ public:
+ Buffer(const ISurface::BufferHeap& buffers, ssize_t offset);
+ inline status_t getStatus() const {
+ return mBufferHeap.heap!=0 ? NO_ERROR : NO_INIT;
+ }
+ inline const NativeBuffer& getBuffer() const {
+ return mNativeBuffer;
+ }
+ protected:
+ friend class LightRefBase<Buffer>;
+ Buffer& operator = (const Buffer& rhs);
+ Buffer(const Buffer& rhs);
+ ~Buffer();
+ private:
+ ISurface::BufferHeap mBufferHeap;
+ NativeBuffer mNativeBuffer;
+ };
+
+ class BufferSource : public Source {
+ public:
+ BufferSource(LayerBuffer& layer, const ISurface::BufferHeap& buffers);
+ virtual ~BufferSource();
+
+ status_t getStatus() const { return mStatus; }
+ sp<Buffer> getBuffer() const;
+ void setBuffer(const sp<Buffer>& buffer);
+
+ virtual void onDraw(const Region& clip) const;
+ virtual void postBuffer(ssize_t offset);
+ virtual void unregisterBuffers();
+ virtual bool transformed() const;
+ private:
+ mutable Mutex mLock;
+ sp<Buffer> mBuffer;
+ status_t mStatus;
+ ISurface::BufferHeap mBufferHeap;
+ size_t mBufferSize;
+ mutable sp<MemoryDealer> mTemporaryDealer;
+ mutable LayerBitmap mTempBitmap;
+ mutable GLuint mTextureName;
+ };
+
+ class OverlaySource : public Source {
+ public:
+ OverlaySource(LayerBuffer& layer,
+ sp<OverlayRef>* overlayRef,
+ uint32_t w, uint32_t h, int32_t format);
+ virtual ~OverlaySource();
+ virtual void onTransaction(uint32_t flags);
+ virtual void onVisibilityResolved(const Transform& planeTransform);
+ private:
+ void serverDestroy();
+ void destroyOverlay();
+ class OverlayChannel : public BnOverlay {
+ mutable Mutex mLock;
+ sp<OverlaySource> mSource;
+ virtual void destroy() {
+ sp<OverlaySource> source;
+ { // scope for the lock;
+ Mutex::Autolock _l(mLock);
+ source = mSource;
+ mSource.clear();
+ }
+ if (source != 0) {
+ source->serverDestroy();
+ }
+ }
+ public:
+ OverlayChannel(const sp<OverlaySource>& source)
+ : mSource(source) {
+ }
+ };
+ friend class OverlayChannel;
+ bool mVisibilityChanged;
+
+ overlay_t* mOverlay;
+ overlay_handle_t mOverlayHandle;
+ overlay_control_device_t* mOverlayDevice;
+ uint32_t mWidth;
+ uint32_t mHeight;
+ int32_t mFormat;
+ int32_t mWidthStride;
+ int32_t mHeightStride;
+ mutable Mutex mLock;
+ };
+
+
+ class SurfaceBuffer : public LayerBaseClient::Surface
+ {
+ public:
+ SurfaceBuffer(SurfaceID id, LayerBuffer* owner);
+ virtual ~SurfaceBuffer();
+ virtual status_t onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags);
+ virtual status_t registerBuffers(const ISurface::BufferHeap& buffers);
+ virtual void postBuffer(ssize_t offset);
+ virtual void unregisterBuffers();
+ virtual sp<OverlayRef> createOverlay(
+ uint32_t w, uint32_t h, int32_t format);
+ void disown();
+ private:
+ LayerBuffer* getOwner() const {
+ Mutex::Autolock _l(mLock);
+ return mOwner;
+ }
+ mutable Mutex mLock;
+ LayerBuffer* mOwner;
+ };
+
+ friend class SurfaceFlinger;
+ sp<SurfaceBuffer> getClientSurface() const;
+
+ mutable Mutex mLock;
+ sp<Source> mSource;
+
+ bool mInvalidate;
+ bool mNeedsBlending;
+ mutable wp<SurfaceBuffer> mClientSurface;
+};
+
+// ---------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_LAYER_BUFFER_H