1 files changed, 53 insertions, 0 deletions
diff --git a/android/source/src/java/org/mozilla/gecko/gfx/TextureReaper.java b/android/source/src/java/org/mozilla/gecko/gfx/TextureReaper.java
new file mode 100644
index 000000000000..3063e5bf8412
--- /dev/null
+++ b/android/source/src/java/org/mozilla/gecko/gfx/TextureReaper.java
@@ -0,0 +1,53 @@
+/* -*- 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 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;
+
+    private TextureReaper() {
+        mDeadTextureIDs = new ArrayList<Integer>();
+    }
+
+    public static TextureReaper get() {
+        if (sSharedInstance == null)
+            sSharedInstance = new TextureReaper();
+        return sSharedInstance;
+    }
+
+    public void add(int[] textureIDs) {
+        for (int textureID : textureIDs)
+            add(textureID);
+    }
+
+    public void add(int textureID) {
+        mDeadTextureIDs.add(textureID);
+    }
+
+    public 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++) {
+            deadTextureIDs[i] = mDeadTextureIDs.get(i);
+        }
+        mDeadTextureIDs.clear();
+
+        GLES20.glDeleteTextures(deadTextureIDs.length, deadTextureIDs, 0);
+    }
+}
+\ No newline at end of file