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author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
commit | 7c1b96a165f970a09ed239bb4fb3f1b0d8f2a407 (patch) | |
tree | df5a6539447324de36e95b057d6b9f0361b7a250 /libs/surfaceflinger/LayerBuffer.h | |
download | frameworks_native-7c1b96a165f970a09ed239bb4fb3f1b0d8f2a407.zip frameworks_native-7c1b96a165f970a09ed239bb4fb3f1b0d8f2a407.tar.gz frameworks_native-7c1b96a165f970a09ed239bb4fb3f1b0d8f2a407.tar.bz2 |
Initial Contribution
Diffstat (limited to 'libs/surfaceflinger/LayerBuffer.h')
-rw-r--r-- | libs/surfaceflinger/LayerBuffer.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/libs/surfaceflinger/LayerBuffer.h b/libs/surfaceflinger/LayerBuffer.h new file mode 100644 index 0000000..ef473dd --- /dev/null +++ b/libs/surfaceflinger/LayerBuffer.h @@ -0,0 +1,145 @@ +/* + * 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 <GLES/eglnatives.h> + +#include "LayerBase.h" +#include "LayerBitmap.h" + +namespace android { + +// --------------------------------------------------------------------------- + +class MemoryDealer; +class Region; + +class LayerBuffer : public LayerBaseClient +{ +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 void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion); + + status_t registerBuffers(int w, int h, int hstride, int vstride, + PixelFormat format, const sp<IMemoryHeap>& heap); + void postBuffer(ssize_t offset); + void unregisterBuffers(); + void invalidate(); + void invalidateLocked(); + +private: + + struct NativeBuffer + { + copybit_image_t img; + copybit_rect_t crop; + }; + + class Buffer + { + public: + Buffer(const sp<IMemoryHeap>& heap, ssize_t offset, + int w, int h, int hs, int vs, int f); + inline void incStrong(void*) const { + android_atomic_inc(&mCount); + } + inline void decStrong(void*) const { + int32_t c = android_atomic_dec(&mCount); + //LOGE_IF(c<1, "Buffer::decStrong() called too many times"); + if (c == 1) { + delete this; + } + } + inline status_t getStatus() const { + return mHeap!=0 ? NO_ERROR : NO_INIT; + } + inline const NativeBuffer& getBuffer() const { + return mNativeBuffer; + } + protected: + Buffer& operator = (const Buffer& rhs); + Buffer(const Buffer& rhs); + ~Buffer(); + mutable volatile int32_t mCount; + private: + sp<IMemoryHeap> mHeap; + NativeBuffer mNativeBuffer; + }; + + class SurfaceBuffer : public LayerBaseClient::Surface + { + public: + SurfaceBuffer(SurfaceID id, LayerBuffer* owner); + virtual ~SurfaceBuffer(); + virtual status_t registerBuffers(int w, int h, int hstride, int vstride, + PixelFormat format, const sp<IMemoryHeap>& heap); + virtual void postBuffer(ssize_t offset); + virtual void unregisterBuffers(); + void disown(); + private: + LayerBuffer* getOwner() const { + Mutex::Autolock _l(mLock); + return mOwner; + } + mutable Mutex mLock; + LayerBuffer* mOwner; + }; + + friend class SurfaceFlinger; + sp<Buffer> getBuffer() const; + void setBuffer(const sp<Buffer>& buffer); + sp<SurfaceBuffer> getClientSurface() const; + + mutable Mutex mLock; + sp<IMemoryHeap> mHeap; + sp<Buffer> mBuffer; + int mWidth; + int mHeight; + int mHStride; + int mVStride; + int mFormat; + mutable GLuint mTextureName; + bool mInvalidate; + bool mNeedsBlending; + mutable wp<SurfaceBuffer> mClientSurface; + mutable sp<MemoryDealer> mTemporaryDealer; + mutable LayerBitmap mTempBitmap; +}; + +// --------------------------------------------------------------------------- + +}; // namespace android + +#endif // ANDROID_LAYER_BUFFER_H |