/*

 File: EAGLView.h

 Abstract: The EAGLView class is a UIView subclass that renders OpenGL scene.

 If the current hardware supports OpenGL ES 2.0, it draws using OpenGL ES 2.0;

 otherwise it draws using OpenGL ES 1.1.

 Version: 1.0

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*/

#import <UIKit/UIKit.h>

#import "ESRenderer.h"

// This class wraps the CAEAGLLayer from CoreAnimation into a convenient UIView subclass.

// The view content is basically an EAGL surface you render your OpenGL scene into.

// Note that setting the view non-opaque will only work if the EAGL surface has an alpha channel.

@interface EAGLView : UIView

{    

@private

    id <ESRenderer> renderer;

    BOOL animating;

    BOOL displayLinkSupported;

    NSInteger animationFrameInterval;

    // Use of the CADisplayLink class is the preferred method for controlling your animation timing.

    // CADisplayLink will link to the main display and fire every vsync when added to a given run-loop.

    // The NSTimer class is used only as fallback when running on a pre 3.1 device where CADisplayLink

    // isn't available.

    id displayLink;

    NSTimer *animationTimer;

}

@property (readonly, nonatomic, getter=isAnimating) BOOL animating;

@property (nonatomic) NSInteger animationFrameInterval;

- (void) startAnimation;

- (void) stopAnimation;

- (void) drawView:(id)sender;

@end