/*
* Copyright (C) 2010 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.
*/
package com.android.gallery3d.ui;
import javax.microedition.khronos.opengles.GL11;
// RawTexture is used for texture created by glCopyTexImage2D.
//
// It will throw RuntimeException in onBind() if used with a different GL
// context. It is only used internally by copyTexture() in GLCanvas.
class RawTexture extends BasicTexture {
private RawTexture(GLCanvas canvas, int id) {
super(canvas, id, STATE_LOADED);
}
public static RawTexture newInstance(GLCanvas canvas) {
int[] textureId = new int[1];
GL11 gl = canvas.getGLInstance();
gl.glGenTextures(1, textureId, 0);
return new RawTexture(canvas, textureId[0]);
}
@Override
protected boolean onBind(GLCanvas canvas) {
if (mCanvasRef.get() != canvas) {
throw new RuntimeException("cannot bind to different canvas");
}
return true;
}
public boolean isOpaque() {
return true;
}
@Override
public void yield() {
// we cannot free the texture because we have no backup.
}
}