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74 lines
2.6 KiB
Java
74 lines
2.6 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Android code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009-2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* James Willcox <jwillcox@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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package org.mozilla.gecko.gfx;
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import android.opengl.GLES10;
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import java.util.Stack;
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public class TextureGenerator {
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private static final int MIN_TEXTURES = 5;
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private static TextureGenerator sSharedInstance;
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private Stack<Integer> mTextureIds;
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private TextureGenerator() { mTextureIds = new Stack<Integer>(); }
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public static TextureGenerator get() {
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if (sSharedInstance == null)
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sSharedInstance = new TextureGenerator();
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return sSharedInstance;
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}
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public synchronized int take() {
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if (mTextureIds.empty())
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return 0;
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return (int)mTextureIds.pop();
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}
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public synchronized void fill() {
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int[] textures = new int[1];
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while (mTextureIds.size() < MIN_TEXTURES) {
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GLES10.glGenTextures(1, textures, 0);
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mTextureIds.push(textures[0]);
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}
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}
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}
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