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/*
* 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
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