57720c384a
Instead of using glTex{Sub}Image2D() to refresh the textures, we're using an EGLImageKHR object
backed up by a gralloc buffer. The data is updated using memcpy(). This is faster than
glTex{Sub}Image2D() because the texture is not swizzled. It also uses less memory because
EGLImageKHW is not limited to power-of-two dimensions.
135 lines
4.2 KiB
C++
135 lines
4.2 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_H
|
|
#define ANDROID_LAYER_H
|
|
|
|
#include <stdint.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <ui/GraphicBuffer.h>
|
|
#include <ui/PixelFormat.h>
|
|
#include <pixelflinger/pixelflinger.h>
|
|
|
|
#include <EGL/egl.h>
|
|
#include <EGL/eglext.h>
|
|
#include <GLES/gl.h>
|
|
#include <GLES/glext.h>
|
|
|
|
#include "LayerBase.h"
|
|
#include "Transform.h"
|
|
|
|
namespace android {
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class Client;
|
|
class FreezeLock;
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
const size_t NUM_BUFFERS = 2;
|
|
|
|
class Layer : 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; }
|
|
|
|
Layer(SurfaceFlinger* flinger, DisplayID display,
|
|
const sp<Client>& client, int32_t i);
|
|
|
|
virtual ~Layer();
|
|
|
|
status_t setBuffers(uint32_t w, uint32_t h,
|
|
PixelFormat format, uint32_t flags=0);
|
|
|
|
void setDrawingSize(uint32_t w, uint32_t h);
|
|
|
|
virtual void onDraw(const Region& clip) const;
|
|
virtual uint32_t doTransaction(uint32_t transactionFlags);
|
|
virtual void lockPageFlip(bool& recomputeVisibleRegions);
|
|
virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion);
|
|
virtual void finishPageFlip();
|
|
virtual bool needsBlending() const { return mNeedsBlending; }
|
|
virtual bool needsDithering() const { return mNeedsDithering; }
|
|
virtual bool isSecure() const { return mSecure; }
|
|
virtual sp<Surface> createSurface() const;
|
|
virtual status_t ditch();
|
|
|
|
// only for debugging
|
|
inline sp<GraphicBuffer> getBuffer(int i) { return mBuffers[i]; }
|
|
// only for debugging
|
|
inline const sp<FreezeLock>& getFreezeLock() const { return mFreezeLock; }
|
|
// only for debugging
|
|
inline PixelFormat pixelFormat() const { return mFormat; }
|
|
|
|
private:
|
|
inline sp<GraphicBuffer> getFrontBufferLocked() {
|
|
return mBuffers[mFrontBufferIndex];
|
|
}
|
|
|
|
void reloadTexture(const Region& dirty);
|
|
status_t initializeEglImageLocked(
|
|
const sp<GraphicBuffer>& buffer, Texture* texture);
|
|
|
|
uint32_t getEffectiveUsage(uint32_t usage) const;
|
|
|
|
sp<GraphicBuffer> requestBuffer(int index, int usage);
|
|
void destroy();
|
|
|
|
class SurfaceLayer : public LayerBaseClient::Surface {
|
|
public:
|
|
SurfaceLayer(const sp<SurfaceFlinger>& flinger,
|
|
SurfaceID id, const sp<Layer>& owner);
|
|
~SurfaceLayer();
|
|
private:
|
|
virtual sp<GraphicBuffer> requestBuffer(int index, int usage);
|
|
sp<Layer> getOwner() const {
|
|
return static_cast<Layer*>(Surface::getOwner().get());
|
|
}
|
|
};
|
|
friend class SurfaceLayer;
|
|
|
|
sp<Surface> mSurface;
|
|
|
|
bool mSecure;
|
|
bool mNoEGLImageForSwBuffers;
|
|
int32_t mFrontBufferIndex;
|
|
bool mNeedsBlending;
|
|
bool mNeedsDithering;
|
|
Region mPostedDirtyRegion;
|
|
sp<FreezeLock> mFreezeLock;
|
|
PixelFormat mFormat;
|
|
|
|
// protected by mLock
|
|
sp<GraphicBuffer> mBuffers[NUM_BUFFERS];
|
|
Texture mTextures[NUM_BUFFERS];
|
|
sp<GraphicBuffer> mHybridBuffer;
|
|
uint32_t mWidth;
|
|
uint32_t mHeight;
|
|
|
|
mutable Mutex mLock;
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|
|
|
|
#endif // ANDROID_LAYER_H
|