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diff --git a/ndk/sources/android/helper/shader.h b/ndk/sources/android/helper/shader.h
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+++ b/ndk/sources/android/helper/shader.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 SHADER_H_
+#define SHADER_H_
+
+#include <jni.h>
+#include <errno.h>
+
+#include <vector>
+#include <map>
+#include <string>
+
+#include <EGL/egl.h>
+#include <GLES/gl.h>
+
+#include <android/sensor.h>
+#include <android/log.h>
+#include <android_native_app_glue.h>
+#include <android/native_window_jni.h>
+#include <cpu-features.h>
+
+#include "JNIHelper.h"
+
+/******************************************************************
+ * Shader compiler helper
+ *
+ * compileShader() with std::map helps patching on a shader on the fly.
+ * For a example,
+ * map : %KEY% -> %VALUE% replaces all %KEY% entries in the given shader code to %VALUE"
+ *
+ */
+class shader {
+public:
+    static bool    compileShader(GLuint *shader, const GLenum type,
+            std::vector<uint8_t>& data);
+    static bool    compileShader(GLuint *shader, const GLenum type,
+            const GLchar *source, const int32_t iSize);
+    static bool compileShader(GLuint *shader, const GLenum type,
+            const char *strFileName);
+    static bool compileShader(GLuint *shader, const GLenum type,
+            const char *strFileName, const std::map<std::string, std::string>& mapParameters);
+    static bool linkProgram(const GLuint prog);
+    static bool validateProgram(const GLuint prog);
+};
+
+
+
+
+#endif /* SHADER_H_ */