146 lines
4.3 KiB
C++
146 lines
4.3 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_LAYER_BUFFER_H
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#define ANDROID_LAYER_BUFFER_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/IMemory.h>
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#include <private/ui/LayerState.h>
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#include <GLES/eglnatives.h>
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#include "LayerBase.h"
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#include "LayerBitmap.h"
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namespace android {
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// ---------------------------------------------------------------------------
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class MemoryDealer;
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class Region;
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class LayerBuffer : public LayerBaseClient
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{
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public:
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static const uint32_t typeInfo;
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static const char* const typeID;
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virtual char const* getTypeID() const { return typeID; }
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virtual uint32_t getTypeInfo() const { return typeInfo; }
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LayerBuffer(SurfaceFlinger* flinger, DisplayID display,
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Client* client, int32_t i);
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virtual ~LayerBuffer();
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virtual bool needsBlending() const;
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virtual sp<LayerBaseClient::Surface> getSurface() const;
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virtual void onDraw(const Region& clip) const;
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virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion);
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status_t registerBuffers(int w, int h, int hstride, int vstride,
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PixelFormat format, const sp<IMemoryHeap>& heap);
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void postBuffer(ssize_t offset);
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void unregisterBuffers();
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void invalidate();
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void invalidateLocked();
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private:
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struct NativeBuffer
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{
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copybit_image_t img;
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copybit_rect_t crop;
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};
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class Buffer
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{
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public:
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Buffer(const sp<IMemoryHeap>& heap, ssize_t offset,
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int w, int h, int hs, int vs, int f);
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inline void incStrong(void*) const {
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android_atomic_inc(&mCount);
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}
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inline void decStrong(void*) const {
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int32_t c = android_atomic_dec(&mCount);
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//LOGE_IF(c<1, "Buffer::decStrong() called too many times");
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if (c == 1) {
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delete this;
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}
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}
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inline status_t getStatus() const {
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return mHeap!=0 ? NO_ERROR : NO_INIT;
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}
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inline const NativeBuffer& getBuffer() const {
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return mNativeBuffer;
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}
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protected:
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Buffer& operator = (const Buffer& rhs);
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Buffer(const Buffer& rhs);
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~Buffer();
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mutable volatile int32_t mCount;
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private:
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sp<IMemoryHeap> mHeap;
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NativeBuffer mNativeBuffer;
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};
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class SurfaceBuffer : public LayerBaseClient::Surface
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{
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public:
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SurfaceBuffer(SurfaceID id, LayerBuffer* owner);
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virtual ~SurfaceBuffer();
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virtual status_t registerBuffers(int w, int h, int hstride, int vstride,
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PixelFormat format, const sp<IMemoryHeap>& heap);
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virtual void postBuffer(ssize_t offset);
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virtual void unregisterBuffers();
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void disown();
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private:
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LayerBuffer* getOwner() const {
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Mutex::Autolock _l(mLock);
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return mOwner;
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}
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mutable Mutex mLock;
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LayerBuffer* mOwner;
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};
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friend class SurfaceFlinger;
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sp<Buffer> getBuffer() const;
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void setBuffer(const sp<Buffer>& buffer);
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sp<SurfaceBuffer> getClientSurface() const;
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mutable Mutex mLock;
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sp<IMemoryHeap> mHeap;
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sp<Buffer> mBuffer;
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int mWidth;
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int mHeight;
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int mHStride;
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int mVStride;
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int mFormat;
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mutable GLuint mTextureName;
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bool mInvalidate;
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bool mNeedsBlending;
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mutable wp<SurfaceBuffer> mClientSurface;
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mutable sp<MemoryDealer> mTemporaryDealer;
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mutable LayerBitmap mTempBitmap;
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_LAYER_BUFFER_H
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