/Users/sjg/iPhone/WhirlyGlobe/WhirlyGlobeSrc/WhirlyGlobeLib/include/SceneRendererES1.h

/*
 *  SceneRendererES1.h
 *  WhirlyGlobeLib
 *
 *  Created by Steve Gifford on 1/13/11.
 *  Copyright 2011 mousebird consulting
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

#import "ESRenderer.h"

#import <OpenGLES/ES1/gl.h>
#import <OpenGLES/ES1/glext.h>

#import "GlobeView.h"
#import "GlobeScene.h"

@class SceneRendererES1;

@interface RendererFrameInfo : NSObject
{
    SceneRendererES1 *sceneRenderer;
    
    WhirlyGlobeView *globeView;
    
    WhirlyGlobe::GlobeScene *scene;
    
    Vector3f eyeVec;

    float frameLen;
    
    NSTimeInterval currentTime;
}

@property (nonatomic,assign) SceneRendererES1 *sceneRenderer;
@property (nonatomic,assign) WhirlyGlobeView *globeView;
@property (nonatomic,assign) WhirlyGlobe::GlobeScene *scene;
@property (nonatomic,assign) float frameLen;
@property (nonatomic,assign) NSTimeInterval currentTime;
@property (nonatomic,assign) Vector3f eyeVec;

@end

@protocol SceneRendererDelegate

@optional
- (void)lightingSetup:(SceneRendererES1 *)sceneRenderer;

- (void)preFrame:(SceneRendererES1 *)sceneRenderer;

- (void)postFrame:(SceneRendererES1 *)sceneRenderer;
@end

static const unsigned int RenderFrameCount = 25;

@interface SceneRendererES1 : NSObject <ESRenderer>
{
        EAGLContext *context;

        WhirlyGlobe::GlobeScene *scene;
        WhirlyGlobeView *view;

    GLint framebufferWidth;
    GLint framebufferHeight;

    GLuint defaultFramebuffer;
    GLuint colorRenderbuffer;
    GLuint depthRenderbuffer;   
        
        float framesPerSec;
        unsigned int frameCount;
        NSDate *frameCountStart;
        
        unsigned int numDrawables;
    
    id<SceneRendererDelegate> delegate;

    WhirlyGlobe::RGBAColor clearColor;
}

@property (nonatomic,assign) WhirlyGlobe::GlobeScene *scene;
@property (nonatomic,assign) WhirlyGlobeView *view;

@property (nonatomic,readonly) GLint framebufferWidth,framebufferHeight;

@property (nonatomic,readonly) float framesPerSec;
@property (nonatomic,readonly) unsigned int numDrawables;

@property (nonatomic,assign) id<SceneRendererDelegate> delegate;

- (void) render:(CFTimeInterval)duration;

- (BOOL) resizeFromLayer:(CAEAGLLayer *)layer;

- (void) setClearColor:(UIColor *)color;

- (void)useContext;

@end