The Tor Browser: mobile/android/base/gfx/TextureReaper.java@fc2d59ddac77

     1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 package org.mozilla.gecko.gfx;

     8 import android.opengl.GLES20;

    10 import java.util.ArrayList;

    12 /** Manages a list of dead tiles, so we don't leak resources. */

    13 public class TextureReaper {

    14     private static TextureReaper sSharedInstance;

    15     private ArrayList<Integer> mDeadTextureIDs;

    17     private TextureReaper() { mDeadTextureIDs = new ArrayList<Integer>(); }

    19     public static TextureReaper get() {

    20         if (sSharedInstance == null)

    21             sSharedInstance = new TextureReaper();

    22         return sSharedInstance;

    23     }

    25     public void add(int[] textureIDs) {

    26         for (int textureID : textureIDs)

    27             add(textureID);

    28     }

    30     public void add(int textureID) {

    31         mDeadTextureIDs.add(textureID);

    32     }

    34     public void reap() {

    35         int numTextures = mDeadTextureIDs.size();

    36         // Adreno 200 will generate INVALID_VALUE if len == 0 is passed to glDeleteTextures,

    37         // even though it's not supposed to.

    38         if (numTextures == 0)

    39             return;

    41         int[] deadTextureIDs = new int[numTextures];

    42         for (int i = 0; i < numTextures; i++) {

    43             deadTextureIDs[i] = mDeadTextureIDs.get(i);

    44         }

    45         mDeadTextureIDs.clear();

    47         GLES20.glDeleteTextures(deadTextureIDs.length, deadTextureIDs, 0);

    48     }

    49 }

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