diff --git a/libs/hwui/Caches.cpp b/libs/hwui/Caches.cpp
index 74aeddb..31b0f6a 100644
--- a/libs/hwui/Caches.cpp
+++ b/libs/hwui/Caches.cpp
@@ -145,7 +145,7 @@
     gpuPixelBuffersEnabled = false;
 
     // OpenGL ES 3.0+ specific features
-    if (mExtensions.getMajorGlVersion() >= 3) {
+    if (mExtensions.hasPixelBufferObjects()) {
         char property[PROPERTY_VALUE_MAX];
         if (property_get(PROPERTY_ENABLE_GPU_PIXEL_BUFFERS, property, "true") > 0) {
             gpuPixelBuffersEnabled = !strcmp(property, "true");
diff --git a/libs/hwui/Dither.cpp b/libs/hwui/Dither.cpp
index 649a7bc..77006a4 100644
--- a/libs/hwui/Dither.cpp
+++ b/libs/hwui/Dither.cpp
@@ -29,7 +29,7 @@
 
 void Dither::bindDitherTexture() {
     if (!mInitialized) {
-        bool useFloatTexture = Extensions::getInstance().getMajorGlVersion() >= 3;
+        bool useFloatTexture = Extensions::getInstance().hasFloatTextures();
 
         glGenTextures(1, &mDitherTexture);
         mCaches->bindTexture(mDitherTexture);
diff --git a/libs/hwui/Extensions.h b/libs/hwui/Extensions.h
index 3112244..5e574a6 100644
--- a/libs/hwui/Extensions.h
+++ b/libs/hwui/Extensions.h
@@ -42,6 +42,10 @@
     inline bool has4BitStencil() const { return mHas4BitStencil; }
     inline bool hasNvSystemTime() const { return mHasNvSystemTime; }
 
+    inline bool hasPixelBufferObjects() const { return mVersionMajor >= 3; }
+    inline bool hasOcclusionQueries() const { return mVersionMajor >= 3; }
+    inline bool hasFloatTextures() const { return mVersionMajor >= 3; }
+
     inline int getMajorGlVersion() const { return mVersionMajor; }
     inline int getMinorGlVersion() const { return mVersionMinor; }
 
diff --git a/libs/hwui/GradientCache.cpp b/libs/hwui/GradientCache.cpp
index 1815bff..0916942 100644
--- a/libs/hwui/GradientCache.cpp
+++ b/libs/hwui/GradientCache.cpp
@@ -78,7 +78,7 @@
     mCache.setOnEntryRemovedListener(this);
 
     const Extensions& extensions = Extensions::getInstance();
-    mUseFloatTexture = extensions.getMajorGlVersion() >= 3;
+    mUseFloatTexture = extensions.hasFloatTextures();
     mHasNpot = extensions.hasNPot();
 }
 
diff --git a/libs/hwui/Query.h b/libs/hwui/Query.h
new file mode 100644
index 0000000..e25b16b
--- /dev/null
+++ b/libs/hwui/Query.h
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef ANDROID_HWUI_QUERY_H
+#define ANDROID_HWUI_QUERY_H
+
+#include <GLES3/gl3.h>
+
+#include "Extensions.h"
+
+namespace android {
+namespace uirenderer {
+
+/**
+ * A Query instance can be used to perform occlusion queries. If the device
+ * does not support occlusion queries, the result of a query will always be
+ * 0 and the result will always be marked available.
+ *
+ * To run an occlusion query successfully, you must start end end the query:
+ *
+ * Query query;
+ * query.begin();
+ * // execute OpenGL calls
+ * query.end();
+ * GLuint result = query.getResult();
+ */
+class Query {
+public:
+    /**
+     * Possible query targets.
+     */
+    enum Target {
+        /**
+         * Indicates if any sample passed the depth & stencil tests.
+         */
+        kTargetSamples = GL_ANY_SAMPLES_PASSED,
+        /**
+         * Indicates if any sample passed the depth & stencil tests.
+         * The implementation may choose to use a less precise version
+         * of the test, potentially resulting in false positives.
+         */
+        kTargetConservativeSamples = GL_ANY_SAMPLES_PASSED_CONSERVATIVE,
+    };
+
+    /**
+     * Creates a new query with the specified target. The default
+     * target is kTargetSamples (of GL_ANY_SAMPLES_PASSED in OpenGL.)
+     */
+    Query(Target target = kTargetSamples): mActive(false), mTarget(target),
+            mCanQuery(Extensions::getInstance().hasOcclusionQueries()),
+            mQuery(0) {
+    }
+
+    ~Query() {
+        if (mQuery) {
+            glDeleteQueries(1, &mQuery);
+        }
+    }
+
+    /**
+     * Begins the query. If the query has already begun or if the device
+     * does not support occlusion queries, calling this method as no effect.
+     * After calling this method successfully, the query is marked active.
+     */
+    void begin() {
+        if (!mActive && mCanQuery) {
+            if (!mQuery) {
+                glGenQueries(1, &mQuery);
+            }
+
+            glBeginQuery(mTarget, mQuery);
+            mActive = true;
+        }
+    }
+
+    /**
+     * Ends the query. If the query has already begun or if the device
+     * does not support occlusion queries, calling this method as no effect.
+     * After calling this method successfully, the query is marked inactive.
+     */
+    void end() {
+        if (mQuery && mActive) {
+            glEndQuery(mTarget);
+            mActive = false;
+        }
+    }
+
+    /**
+     * Returns true if the query is active, false otherwise.
+     */
+    bool isActive() {
+        return mActive;
+    }
+
+    /**
+     * Returns true if the result of the query is available,
+     * false otherwise. Calling getResult() before the result
+     * is available may result in the calling thread being blocked.
+     * If the device does not support queries, this method always
+     * returns true.
+     */
+    bool isResultAvailable() {
+        if (!mQuery) return true;
+
+        GLuint result;
+        glGetQueryObjectuiv(mQuery, GL_QUERY_RESULT_AVAILABLE, &result);
+        return result == GL_TRUE;
+    }
+
+    /**
+     * Returns the result of the query. If the device does not
+     * support queries this method will return 0.
+     *
+     * Calling this method implicitely calls end() if the query
+     * is currently active.
+     */
+    GLuint getResult() {
+        if (!mQuery) return 0;
+
+        end();
+
+        GLuint result;
+        glGetQueryObjectuiv(mQuery, GL_QUERY_RESULT, &result);
+        return result;
+    }
+
+
+private:
+    bool mActive;
+    GLenum mTarget;
+    bool mCanQuery;
+    GLuint mQuery;
+
+}; // class Query
+
+}; // namespace uirenderer
+}; // namespace android
+
+#endif // ANDROID_HWUI_QUERY_H