ebiten/cmd/ebitenmobile/_files/EbitenSurfaceView.java

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Java
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// Copyright 2022 The Ebitengine Authors
//
// 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.
package {{.JavaPkg}}.{{.PrefixLower}};
import android.content.Context;
import android.opengl.GLSurfaceView;
import android.os.Handler;
import android.os.Looper;
import android.util.AttributeSet;
import android.util.Log;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
import {{.JavaPkg}}.ebitenmobileview.Ebitenmobileview;
import {{.JavaPkg}}.ebitenmobileview.RenderRequester;
import {{.JavaPkg}}.{{.PrefixLower}}.EbitenView;
class EbitenSurfaceView extends GLSurfaceView implements RenderRequester {
private class EbitenRenderer implements GLSurfaceView.Renderer {
private boolean errored_ = false;
private boolean onceSurfaceCreated_ = false;
private boolean contextLost_ = false;
@Override
public void onDrawFrame(GL10 gl) {
if (errored_) {
return;
}
if (contextLost_) {
return;
}
try {
Ebitenmobileview.update();
} catch (final Exception e) {
new Handler(Looper.getMainLooper()).post(new Runnable() {
@Override
public void run() {
onErrorOnGameUpdate(e);
}
});
errored_ = true;
}
}
@Override
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
if (!onceSurfaceCreated_) {
onceSurfaceCreated_ = true;
return;
}
contextLost_ = true;
new Handler(Looper.getMainLooper()).post(new Runnable() {
@Override
public void run() {
onContextLost();
}
});
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
}
}
public EbitenSurfaceView(Context context) {
super(context);
initialize();
}
public EbitenSurfaceView(Context context, AttributeSet attrs) {
super(context, attrs);
initialize();
}
private void initialize() {
setEGLContextClientVersion(3);
setEGLConfigChooser(8, 8, 8, 8, 0, 0);
setRenderer(new EbitenRenderer());
setPreserveEGLContextOnPause(true);
Ebitenmobileview.setRenderRequester(this);
}
private void onErrorOnGameUpdate(Exception e) {
((EbitenView)getParent()).onErrorOnGameUpdate(e);
}
private void onContextLost() {
Log.v("Go", "Kill the application due to a context lost");
// TODO: Relaunch this application for better UX (#805).
Runtime.getRuntime().exit(0);
}
@Override
public synchronized void setExplicitRenderingMode(boolean explicitRendering) {
if (explicitRendering) {
setRenderMode(RENDERMODE_WHEN_DIRTY);
} else {
setRenderMode(RENDERMODE_CONTINUOUSLY);
}
}
@Override
public synchronized void requestRenderIfNeeded() {
if (getRenderMode() == RENDERMODE_WHEN_DIRTY) {
requestRender();
}
}
}