add GLTextureAtlas

Author: Darcy Liu

GLTextureAtlas.zip

@@ -0,0 +1,100 @@
+/*
+     File: EAGLView.h
+ Abstract: 
+  Version: 1.5
+ 
+ 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) 2010 Apple Inc. All Rights Reserved.
+ 
+ */
+
+#import <UIKit/UIKit.h>
+#import <OpenGLES/EAGL.h>
+#import <OpenGLES/ES1/gl.h>
+#import <OpenGLES/ES1/glext.h>
+
+#import "PVRTexture.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
+    /* The pixel dimensions of the backbuffer */
+    GLint backingWidth;
+    GLint backingHeight;
+    
+    EAGLContext *context;
+    
+    /* OpenGL names for the renderbuffer and framebuffers used to render to this view */
+    GLuint viewRenderbuffer, viewFramebuffer;
+    
+    /* OpenGL name for the depth buffer that is attached to viewFramebuffer, if it exists (0 if it does not exist) */
+    GLuint depthRenderbuffer;
+	
+	GLint widthScaleIndex, frameCount; //to simulate the fly effect
+	
+	GLuint textureAtlas;
+	PVRTexture *pvrTextureAtlas;
+	
+	Boolean init;
+    
+	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;
+
+@end