Converting OpenCV Mat to OpenGL texture

cvgltexture.cpp

// don't forget to include related head files
void BindCVMat2GLTexture(cv::Mat& image, GLuint& imageTexture)
{
   if(image.empty()){
      std::cout << "image empty" << std::endl;
  }else{
      //glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
      glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
      glGenTextures(1, &imageTexture1);
      glBindTexture(GL_TEXTURE_2D, imageTexture1);

      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

        // Set texture clamping method
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);

      cv::cvtColor(image, image, CV_RGB2BGR);

      glTexImage2D(GL_TEXTURE_2D,         // Type of texture
                     	0,                   // Pyramid level (for mip-mapping) - 0 is the top level
			GL_RGB,              // Internal colour format to convert to
                     	image.cols,          // Image width  i.e. 640 for Kinect in standard mode
                     	image.rows,          // Image height i.e. 480 for Kinect in standard mode
                     	0,                   // Border width in pixels (can either be 1 or 0)
			GL_RGB,              // Input image format (i.e. GL_RGB, GL_RGBA, GL_BGR etc.)
			GL_UNSIGNED_BYTE,    // Image data type
			image.ptr());        // The actual image data itself
	}
} 

very good thank you

does anyone know the java equivalent of image.ptr() ?

Most probably there will be ByteBuffer.wrap(image.data) for java

Thank you for your code.

HI,
how to use this function?