diff --git a/src/Program.h b/src/Program.h
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+++ b/src/Program.h
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+/*
+ * Copyright 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 SCREENRECORD_PROGRAM_H
+#define SCREENRECORD_PROGRAM_H
+
+#include <utils/Errors.h>
+
+#include <EGL/egl.h>
+#include <GLES2/gl2.h>
+
+namespace android {
+
+/*
+ * Utility class for GLES rendering.
+ *
+ * Not thread-safe.
+ */
+class Program {
+public:
+    enum ProgramType { PROGRAM_UNKNOWN=0, PROGRAM_EXTERNAL_TEXTURE,
+            PROGRAM_TEXTURE_2D };
+
+    Program() :
+        mProgramType(PROGRAM_UNKNOWN),
+        mProgram(0),
+        maPositionLoc(0),
+        maTextureCoordLoc(0),
+        muMVPMatrixLoc(0),
+        muGLCMatrixLoc(0),
+        muTextureLoc(0)
+        {}
+    ~Program() { release(); }
+
+    // Initialize the program for use with the specified texture type.
+    status_t setup(ProgramType type);
+
+    // Release the program and associated resources.
+    void release();
+
+    // Blit the specified texture to { x, y, x+w, y+h }.  Inverts the
+    // content if "invert" is set.
+    status_t blit(GLuint texName, const float* texMatrix,
+            int32_t x, int32_t y, int32_t w, int32_t h,
+            bool invert = false) const;
+
+    // Draw a number of triangles.
+    status_t drawTriangles(GLuint texName, const float* texMatrix,
+            const float* vertices, const float* texes, size_t count) const;
+
+    static const float kIdentity[];
+
+private:
+    Program(const Program&);
+    Program& operator=(const Program&);
+
+    // Common code for draw functions.
+    status_t beforeDraw(GLuint texName, const float* texMatrix,
+            const float* vertices, const float* texes, bool invert) const;
+    status_t afterDraw() const;
+
+    // GLES 2 shader utilities.
+    status_t createProgram(GLuint* outPgm, const char* vertexShader,
+            const char* fragmentShader);
+    static status_t compileShader(GLenum shaderType, const char* src,
+            GLuint* outShader);
+    static status_t linkShaderProgram(GLuint vs, GLuint fs, GLuint* outPgm);
+
+    ProgramType mProgramType;
+    GLuint mProgram;
+
+    GLint maPositionLoc;
+    GLint maTextureCoordLoc;
+    GLint muMVPMatrixLoc;
+    GLint muGLCMatrixLoc;
+    GLint muTextureLoc;
+};
+
+}; // namespace android
+
+#endif /*SCREENRECORD_PROGRAM_H*/