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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_ORIENTATION_ANIM_H
#define ANDROID_LAYER_ORIENTATION_ANIM_H
#include <stdint.h>
#include <sys/types.h>
#include <utils/threads.h>
#include <utils/Parcel.h>
#include "LayerBase.h"
#include "LayerBitmap.h"
namespace android {
// ---------------------------------------------------------------------------
class OrientationAnimation;
class LayerOrientationAnimBase : public LayerBase
{
public:
LayerOrientationAnimBase(SurfaceFlinger* flinger, DisplayID display)
: LayerBase(flinger, display) {
}
virtual void onOrientationCompleted() = 0;
};
// ---------------------------------------------------------------------------
class LayerOrientationAnim : public LayerOrientationAnimBase
{
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; }
LayerOrientationAnim(SurfaceFlinger* flinger, DisplayID display,
OrientationAnimation* anim,
const LayerBitmap& bitmapIn,
const LayerBitmap& bitmapOut);
virtual ~LayerOrientationAnim();
void onOrientationCompleted();
virtual void onDraw(const Region& clip) const;
virtual Point getPhysicalSize() const;
virtual void validateVisibility(const Transform& globalTransform);
virtual bool needsBlending() const;
virtual bool isSecure() const { return false; }
private:
void drawScaled(float scale, float alphaIn, float alphaOut) const;
class Lerp {
float in;
float outMinusIn;
public:
Lerp() : in(0), outMinusIn(0) { }
Lerp(float in, float out) : in(in), outMinusIn(out-in) { }
float getIn() const { return in; };
float getOut() const { return in + outMinusIn; }
void set(float in, float out) {
this->in = in;
this->outMinusIn = out-in;
}
void setIn(float in) {
this->in = in;
}
void setOut(float out) {
this->outMinusIn = out - this->in;
}
float operator()(float t) const {
return outMinusIn*t + in;
}
};
OrientationAnimation* mAnim;
LayerBitmap mBitmapIn;
LayerBitmap mBitmapOut;
nsecs_t mStartTime;
nsecs_t mFinishTime;
bool mOrientationCompleted;
mutable bool mFirstRedraw;
mutable float mLastNormalizedTime;
mutable GLuint mTextureName;
mutable GLuint mTextureNameIn;
mutable bool mNeedsBlending;
mutable Lerp mAlphaInLerp;
mutable Lerp mAlphaOutLerp;
};
// ---------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_LAYER_ORIENTATION_ANIM_H
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