adding cmake based android scripts and a reusable android library - samples to follow - haven't tested yet completely

android/android-jni/jni/glcamera.h

@@ -0,0 +1,40 @@
+#ifndef GLCAMERA_H_
+#define GLCAMERA_H_
+#include <opencv2/core/core.hpp>
+
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include "image_pool.h"
+class glcamera {
+	Mat nimg;
+	bool newimage;
+	GLuint textureID;
+
+	GLuint gProgram;
+	GLuint gvPositionHandle;
+
+	GLuint gvTexCoordHandle;
+	GLuint gvSamplerHandle;
+
+public:
+
+	glcamera();
+	~glcamera();
+	void init(int width, int height);
+	void step();
+
+	void drawMatToGL(int idx, image_pool* pool);
+	void setTextureImage(Ptr<Mat> img);
+
+private:
+	GLuint createSimpleTexture2D(GLuint _textureid, GLubyte* pixels, int width,
+			int height, int channels);
+	GLuint loadShader(GLenum shaderType, const char* pSource);
+	GLuint
+			createProgram(const char* pVertexSource,
+					const char* pFragmentSource);
+	bool setupGraphics(int w, int h);
+	void renderFrame();
+};
+#endif