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/*
* Copyright (c) 2014, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.android.systemui.statusbar.phone;
import android.graphics.PixelFormat;
import android.util.Slog;
import android.view.SurfaceControl;
import android.view.SurfaceSession;
import java.io.PrintWriter;
public class BlurLayer {
private static final String TAG = "BlurLayer";
private static final boolean DEBUG = true;
private SurfaceControl mBlurSurface;
private int mLayer = -1;
private float mAlpha = 0;
private float mBlur = 0;
private int mX, mY;
private int mW, mH;
private boolean mIsShow;
public BlurLayer(SurfaceSession mFxSession, int w, int h, String tag) {
this(mFxSession, 0, 0, w, h, tag);
}
public BlurLayer(SurfaceSession mFxSession, int x, int y, int w, int h, String tag) {
mX = x;
mY = y;
mW = w;
mH = h;
mIsShow = false;
SurfaceControl.openTransaction();
try {
mBlurSurface = new SurfaceControl(mFxSession, TAG+"_"+tag, 16, 16, PixelFormat.OPAQUE,
SurfaceControl.FX_SURFACE_BLUR | SurfaceControl.HIDDEN);
mBlurSurface.setLayerStack(0);
mBlurSurface.setPosition(mX, mY);
mBlurSurface.setSize(mW, mH);
} catch (Exception e) {
Slog.e(TAG, "Exception creating BlurLayer surface", e);
} finally {
SurfaceControl.closeTransaction();
}
}
public void setSize(int w, int h) {
if (mBlurSurface != null && (mW != w || mH != h) ) {
SurfaceControl.openTransaction();
try {
mBlurSurface.setSize(w, h);
mW = w;
mH = h;
} catch (RuntimeException e) {
Slog.w(TAG, "Failure setting setSize immediately", e);
} catch (Exception e) {
Slog.e(TAG, "Exception setSize", e);
} finally {
SurfaceControl.closeTransaction();
}
}
}
public void setPosition(int x, int y) {
if (mBlurSurface != null && (mX != x || mY != y) ) {
SurfaceControl.openTransaction();
try {
mBlurSurface.setPosition(x, y);
mX = x;
mY = y;
} catch (RuntimeException e) {
Slog.w(TAG, "Failure setting setPosition immediately", e);
} catch (Exception e) {
Slog.e(TAG, "Exception setPosition", e);
} finally {
SurfaceControl.closeTransaction();
}
}
}
public void setLayer(int layer) {
if (mBlurSurface != null && mLayer != layer) {
SurfaceControl.openTransaction();
try {
mBlurSurface.setLayer(layer);
mLayer = layer;
} catch (RuntimeException e) {
Slog.w(TAG, "Failure setting setLayer immediately", e);
} catch (Exception e) {
Slog.e(TAG, "Exception setLayer", e);
} finally {
SurfaceControl.closeTransaction();
}
}
}
public void setAlpha(float alpha){
if(mBlurSurface != null && mAlpha != alpha){
SurfaceControl.openTransaction();
try {
mBlurSurface.setAlpha(alpha);
mAlpha = alpha;
} catch (RuntimeException e) {
Slog.w(TAG, "Failure setting alpha immediately", e);
} catch (Exception e) {
Slog.e(TAG, "Exception setAlpha", e);
} finally {
SurfaceControl.closeTransaction();
}
}
}
public void setBlur(float blur){
if(mBlurSurface != null && mBlur != blur ){
SurfaceControl.openTransaction();
try {
mBlurSurface.setBlur(blur);
mBlur = blur;
} catch (RuntimeException e) {
Slog.w(TAG, "Failure setting blur immediately", e);
} catch (Exception e) {
Slog.e(TAG, "Exception setBlur", e);
} finally {
SurfaceControl.closeTransaction();
}
}
}
public void show() {
if(mBlurSurface != null && !mIsShow ){
try {
mBlurSurface.show();
mIsShow = true;
} catch (RuntimeException e) {
Slog.w(TAG, "Failure show()", e);
} catch (Exception e) {
Slog.e(TAG, "Exception show()", e);
} finally {
SurfaceControl.closeTransaction();
}
}
}
public void hide(){
if(mBlurSurface != null && mIsShow ){
try {
mBlurSurface.hide();
mIsShow = false;
} catch (RuntimeException e) {
Slog.w(TAG, "Failure hide()", e);
} catch (Exception e) {
Slog.e(TAG, "Exception hide()", e);
} finally {
SurfaceControl.closeTransaction();
}
}
}
public void destroySurface() {
if (DEBUG) Slog.v(TAG, "destroySurface.");
if (mBlurSurface != null) {
mBlurSurface.destroy();
mBlurSurface = null;
}
}
}
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