/* ===== 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. */ #import #import #import #import #import #import #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 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