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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.gfx;
import android.opengl.GLES20;
import android.util.Log;
import java.util.ArrayList;
/**
* Manages a list of dead tiles, so we don't leak resources.
*/
public class TextureReaper {
private static TextureReaper sSharedInstance;
private ArrayList<Integer> mDeadTextureIDs = new ArrayList<Integer>();
private static final String LOGTAG = TextureReaper.class.getSimpleName();
private TextureReaper() {
}
public static TextureReaper get() {
if (sSharedInstance == null) {
sSharedInstance = new TextureReaper();
}
return sSharedInstance;
}
public void add(int[] textureIDs) {
for (int textureID : textureIDs) {
add(textureID);
}
}
public synchronized void add(int textureID) {
mDeadTextureIDs.add(textureID);
}
public synchronized void reap() {
int numTextures = mDeadTextureIDs.size();
// Adreno 200 will generate INVALID_VALUE if len == 0 is passed to glDeleteTextures,
// even though it's not supposed to.
if (numTextures == 0)
return;
int[] deadTextureIDs = new int[numTextures];
for (int i = 0; i < numTextures; i++) {
Integer id = mDeadTextureIDs.get(i);
if (id == null) {
deadTextureIDs[i] = 0;
Log.e(LOGTAG, "Dead texture id is null");
} else {
deadTextureIDs[i] = mDeadTextureIDs.get(i);
}
}
mDeadTextureIDs.clear();
GLES20.glDeleteTextures(deadTextureIDs.length, deadTextureIDs, 0);
}
}
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