axmol/cocos2dx/platform/iphone/EAGLView.h

/*

===== IMPORTANT =====

This is sample code demonstrating API, technology or techniques in development.
Although this sample code has been reviewed for technical accuracy, it is not
final. Apple is supplying this information to help you plan for the adoption of
the technologies and programming interfaces described herein. This information
is subject to change, and software implemented based on this sample code should
be tested with final operating system software and final documentation. Newer
versions of this sample code may be provided with future seeds of the API or
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documentation, view the New & Updated sidebars in subsequent documentation
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=====================

File: EAGLView.h
Abstract: Convenience class that wraps the CAEAGLLayer from CoreAnimation into a
UIView subclass.

Version: 1.3

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*/

#import <UIKit/UIKit.h>
#import <OpenGLES/EAGL.h>
#import <OpenGLES/EAGLDrawable.h>
#import <OpenGLES/ES1/gl.h>
#import <OpenGLES/ES1/glext.h>
#import <CoreFoundation/CoreFoundation.h>

#import "ESRenderer.h"

//CLASS INTERFACE:

/** EAGLView Class.
 * 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
{
    id						<ESRenderer> renderer_;	
	EAGLContext				*context_; // weak ref

	NSString				*pixelformat_;
	GLuint					depthFormat_;

	CGSize					size_;
	BOOL					discardFramebufferSupported_;
@private
        CFMutableDictionaryRef    touchesIntergerDict;
        unsigned int                           indexBitsUsed;
}

/** creates an initializes an EAGLView with a frame and 0-bit depth buffer, and a RGB565 color buffer */
+ (id) viewWithFrame:(CGRect)frame;
/** creates an initializes an EAGLView with a frame, a color buffer format, and 0-bit depth buffer */
+ (id) viewWithFrame:(CGRect)frame pixelFormat:(NSString*)format;
/** creates an initializes an EAGLView with a frame, a color buffer format, and a depth buffer format */
+ (id) viewWithFrame:(CGRect)frame pixelFormat:(NSString*)format depthFormat:(GLuint)depth preserveBackbuffer:(BOOL)retained;
// get the view object
+(id) sharedEGLView;

/** Initializes an EAGLView with a frame and 0-bit depth buffer, and a RGB565 color buffer */
- (id) initWithFrame:(CGRect)frame; //These also set the current context
/** Initializes an EAGLView with a frame, a color buffer format, and 0-bit depth buffer */
- (id) initWithFrame:(CGRect)frame pixelFormat:(NSString*)format;
/** Initializes an EAGLView with a frame, a color buffer format, and a depth buffer format */
- (id) initWithFrame:(CGRect)frame pixelFormat:(NSString*)format depthFormat:(GLuint)depth preserveBackbuffer:(BOOL)retained;

/** pixel format: it could be RGBA8 (32-bit) or RGB565 (16-bit) */
@property(nonatomic,readonly) NSString* pixelFormat;
/** depth format of the render buffer: 0, 16 or 24 bits*/
@property(nonatomic,readonly) GLuint depthFormat;

/** returns surface size in pixels */
@property(nonatomic,readonly) CGSize surfaceSize;

/** OpenGL context */
@property(nonatomic,readonly) EAGLContext *context;

@property(readonly) CFMutableDictionaryRef touchesIntergerDict;
@property(readwrite) unsigned int indexBitsUsed;

/** EAGLView uses double-buffer. This method swaps the buffers */
-(void) swapBuffers;

- (CGRect) convertRectFromViewToSurface:(CGRect)rect;
- (CGPoint) convertPointFromViewToSurface:(CGPoint)point;
- (id) init;

-(int) getWidth;
-(int) getHeight;
-(int) getUnUsedIndex;
-(void) removeUsedIndexBit:(int) index;
@end