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+/*
+
+===== 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
+technology. For information about updates to this and other developer
+documentation, view the New & Updated sidebars in subsequent documentation
+seeds.
+
+=====================
+
+File: EAGLView.h
+Abstract: Convenience class that wraps the CAEAGLLayer from CoreAnimation into a
+UIView subclass.
+
+Version: 1.3
+
+Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Inc.
+("Apple") in consideration of your agreement to the following terms, and your
+use, installation, modification or redistribution of this Apple software
+constitutes acceptance of these terms.  If you do not agree with these terms,
+please do not use, install, modify or redistribute this Apple software.
+
+In consideration of your agreement to abide by the following terms, and subject
+to these terms, Apple grants you a personal, non-exclusive license, under
+Apple's copyrights in this original Apple software (the "Apple Software"), to
+use, reproduce, modify and redistribute the Apple Software, with or without
+modifications, in source and/or binary forms; provided that if you redistribute
+the Apple Software in its entirety and without modifications, you must retain
+this notice and the following text and disclaimers in all such redistributions
+of the Apple Software.
+Neither the name, trademarks, service marks or logos of Apple Inc. may be used
+to endorse or promote products derived from the Apple Software without specific
+prior written permission from Apple.  Except as expressly stated in this notice,
+no other rights or licenses, express or implied, are granted by Apple herein,
+including but not limited to any patent rights that may be infringed by your
+derivative works or by other works in which the Apple Software may be
+incorporated.
+
+The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO
+WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
+WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
+COMBINATION WITH YOUR PRODUCTS.
+
+IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR
+DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF
+CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF
+APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Copyright (C) 2008 Apple Inc. All Rights Reserved.
+
+*/
+
+// Only compile this code on iOS. These files should NOT be included on your Mac project.
+// But in case they are included, it won't be compiled.
+#import <Availability.h>
+#ifdef __IPHONE_OS_VERSION_MAX_ALLOWED
+
+#import <UIKit/UIKit.h>
+#import <OpenGLES/EAGL.h>
+#import <OpenGLES/EAGLDrawable.h>
+#import <OpenGLES/ES1/gl.h>
+#import <OpenGLES/ES1/glext.h>
+
+#import "ESRenderer.h"
+
+//CLASSES:
+
+@class EAGLView;
+@class EAGLSharegroup;
+
+//PROTOCOLS:
+
+@protocol EAGLTouchDelegate <NSObject>
+- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event;
+- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event;
+- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event;
+- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event;
+@end
+
+//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_;
+        BOOL                                    preserveBackbuffer_;
+
+        CGSize                                  size_;
+        BOOL                                    discardFramebufferSupported_;
+        id<EAGLTouchDelegate>   touchDelegate_;
+
+        //fsaa addition
+        BOOL                                    multisampling_;
+        unsigned int                    requestedSamples_;
+}
+
+/** 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. */
++ (id) viewWithFrame:(CGRect)frame pixelFormat:(NSString*)format depthFormat:(GLuint)depth;
+/** creates an initializes an EAGLView with a frame, a color buffer format, a depth buffer format, a sharegroup, and multisamping */
++ (id) viewWithFrame:(CGRect)frame pixelFormat:(NSString*)format depthFormat:(GLuint)depth preserveBackbuffer:(BOOL)retained sharegroup:(EAGLSharegroup*)sharegroup multiSampling:(BOOL)multisampling numberOfSamples:(unsigned int)samples;
+
+/** 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, a depth buffer format, a sharegroup and multisampling support */
+- (id) initWithFrame:(CGRect)frame pixelFormat:(NSString*)format depthFormat:(GLuint)depth preserveBackbuffer:(BOOL)retained sharegroup:(EAGLSharegroup*)sharegroup multiSampling:(BOOL)sampling numberOfSamples:(unsigned int)nSamples;
+
+/** 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(nonatomic,readwrite) BOOL multiSampling;
+
+/** touch delegate */
+@property(nonatomic,readwrite,assign) id<EAGLTouchDelegate> touchDelegate;
+
+/** EAGLView uses double-buffer. This method swaps the buffers */
+-(void) swapBuffers;
+
+- (CGPoint) convertPointFromViewToSurface:(CGPoint)point;
+- (CGRect) convertRectFromViewToSurface:(CGRect)rect;
+@end
+
+#endif // __IPHONE_OS_VERSION_MAX_ALLOWED