text: 
  
  #import "ESRenderer.h"
  #import <OpenGLES/ES2/gl.h>
  #import <OpenGLES/ES2/glext.h>
  
  @interface ES2Renderer : NSObject <ESRenderer>
  {
  @private
      EAGLContext *context;
  
      // The pixel dimensions of the CAEAGLLayer
      GLint backingWidth;
      GLint backingHeight;
  
      // The OpenGL ES names for the framebuffer and renderbuffer used to render to this view
      GLuint defaultFramebuffer, colorRenderbuffer;
  
      GLuint program;
  	
  	//settings
  	bool fsaaEnabled;
  	int fsaaSamples;
  	bool depthEnabled;
  	bool retinaEnabled;
  }
  
  - (id)initWithDepth:(bool)depth andAA:(bool)fsaa andFSAASamples:(int)samples andRetina:(bool)retina;
  - (void) startRender;
  - (void) finishRender;
  - (BOOL)resizeFromLayer:(CAEAGLLayer *)layer;
  - (EAGLContext*) context;
  
  - (NSInteger)getWidth;
  - (NSInteger)getHeight;
  
  @end
  
  