replicant-frameworks_native/libs/surfaceflinger/LayerBuffer.h
Mathias Agopian c5e181f8b3 fix [2315900] Monochrome camera preview screen after launching camera
this was introduced by a recent change. when we try to figure out the size of
the yuv->rgb temporary buffer, the output resolution has not been computed yet
and an invalid buffer size is used. most of the time the allocation fails
and the system reverts to "standard" GL will uses onle the Y plane.

the allocation of the temporary buffer is moved to onDraw(), the first
time it is called, by that time, the window is positioned properly.
2009-12-09 15:26:29 -08:00

218 lines
6.8 KiB
C++

/*
* 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 "LayerBase.h"
struct copybit_device_t;
namespace android {
// ---------------------------------------------------------------------------
class Buffer;
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;
virtual void destroy() { }
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,
const sp<Client>& client, int32_t i);
virtual ~LayerBuffer();
virtual void onFirstRef();
virtual bool needsBlending() const;
virtual sp<LayerBaseClient::Surface> createSurface() const;
virtual status_t ditch();
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);
Rect getTransformedBounds() const {
return mTransformedBounds;
}
void serverDestroy();
private:
struct NativeBuffer {
copybit_image_t img;
copybit_rect_t crop;
};
static gralloc_module_t const* sGrallocModule;
static gralloc_module_t const* getGrallocModule() {
return sGrallocModule;
}
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;
virtual void destroy() { }
private:
status_t initTempBuffer() const;
mutable Mutex mBufferSourceLock;
sp<Buffer> mBuffer;
status_t mStatus;
ISurface::BufferHeap mBufferHeap;
size_t mBufferSize;
mutable LayerBase::Texture mTexture;
mutable NativeBuffer mTempBuffer;
mutable sp<GraphicBuffer> mTempGraphicBuffer;
};
class OverlaySource : public Source {
public:
OverlaySource(LayerBuffer& layer,
sp<OverlayRef>* overlayRef,
uint32_t w, uint32_t h, int32_t format);
virtual ~OverlaySource();
virtual void onDraw(const Region& clip) const;
virtual void onTransaction(uint32_t flags);
virtual void onVisibilityResolved(const Transform& planeTransform);
virtual void destroy();
private:
class OverlayChannel : public BnOverlay {
wp<LayerBuffer> mLayer;
virtual void destroy() {
sp<LayerBuffer> layer(mLayer.promote());
if (layer != 0) {
layer->serverDestroy();
}
}
public:
OverlayChannel(const sp<LayerBuffer>& layer)
: mLayer(layer) {
}
};
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 mOverlaySourceLock;
bool mInitialized;
};
class SurfaceLayerBuffer : public LayerBaseClient::Surface
{
public:
SurfaceLayerBuffer(const sp<SurfaceFlinger>& flinger,
SurfaceID id, const sp<LayerBuffer>& owner);
virtual ~SurfaceLayerBuffer();
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);
private:
sp<LayerBuffer> getOwner() const {
return static_cast<LayerBuffer*>(Surface::getOwner().get());
}
};
mutable Mutex mLock;
sp<Source> mSource;
sp<Surface> mSurface;
bool mInvalidate;
bool mNeedsBlending;
copybit_device_t* mBlitEngine;
};
// ---------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_LAYER_BUFFER_H