loading exr files to a texture

I’m going to implement a paper about env. mapping and I have prefiltered env maps. they are in a power of 2 format (1024*1024). the X-axis is the phi and the Y-axis is my theta from spherical coordinates.

Now, my problem is: what’s the best way to load those .exr files? Atm I have this code. (nvm the ‘data’ stuff)

void initEnvData(){

	Header header;
	Array<Rgba>	pixels;
	const Imf::Rgba *	_rawPixels;
	loadImage("0_175.exr", header, pixels);
	_rawPixels = pixels;
	cout<<"Image loaded" <<endl;

	float* data1 = (float*)malloc(48*sizeof(float));
	float* data2 = (float*)malloc(48*sizeof(float));

	//insert loop to read data from file
	//placeholder
	for (int i=0; i<96; i++){
        data1[i] = i+1.0;
	}
	//placeholder

	glGenTextures(1, &dataTexture1);
	glGenTextures(2, &dataTexture2);
	glGenTextures(3, &envMapTexture);

	glBindTexture( GL_TEXTURE_2D, dataTexture1);
	glTexImage2D(GL_TEXTURE_2D,0,GL_RGB16F_ARB, 4, 4 ,0,GL_RGB16F_ARB,GL_FLOAT,data1);

	glBindTexture( GL_TEXTURE_2D, dataTexture2);
	glTexImage2D(GL_TEXTURE_2D,0,GL_RGB16F_ARB, 4, 4 ,0,GL_RGB16F_ARB,GL_FLOAT,data2);

	glBindTexture (GL_TEXTURE_2D, envMapTexture);
	glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA16F_ARB, 1024, 1024, 0, GL_RGBA, GL_FLOAT, _rawPixels);
}

But _rawpixels is a 1D array of RGBA stucts, so I’m guessing that won’t work right? Do I need to convert to a 102410244 array thing or something like that ?

I’ve never tried to load an EXR by hand but you might want to use a library… http://www.openexr.com/downloads.html

Yep, I use that library but that makes a 1D array of RGBA structs.

So now I’m wondering how I should manipulate it to make it fit in GL_TEXTURE_2D and which other params I should use.