Posted by sarevok on Jun 02, 2012; 8:44pm
URL: https://forum.jogamp.org/How-to-handle-different-versions-of-OpenGL-in-library-tp4025129.html

Hello,

I want to write crossplatform library which will be compatible with JOGL2 and I stuck in one place.

I dont know how to handle different versions of OpenGL, including GLES ones...

Just look at my code:

public class MySimpleLib {
        private GL gl;

        public MySimpleLib(GL gl) {
                this.gl = gl;
       }

        public void setModelMatrixMode() {
                if (GLProfile.getDefault().isGL2())
                        gl.glMatrixMode(GL2.GL_MODELVIEW); << The method glMatrixMode(int) is undefined for the type GL
                if (GLProfile.getDefault().isGL3())
                        gl.glMatrixMode(GL3.GL_MODELVIEW); << The method glMatrixMode(int) is undefined for the type GL
                if (GLProfile.getDefault().isGLES1())
                        gl.glMatrixMode(GLES1.GL_MODELVIEW); << The method glMatrixMode(int) is undefined for the type GL
        }
}

So I can cast it to gl to this.gl to different GL profiles ((GL2) gl).glMatrixMode(GL2.GL_MODELVIEW); but is that good aproach? It seems not for me...

So whats the correct way to handle different GL versions here, depending from choosen GLProfile? Any advices?