1 /*

     2     SDL - Simple DirectMedia Layer

     3     Copyright (C) 1997-2010 Sam Lantinga

     4 

     5     This library is free software; you can redistribute it and/or

     6     modify it under the terms of the GNU Lesser General Public

     7     License as published by the Free Software Foundation; either

     8     version 2.1 of the License, or (at your option) any later version.

     9 

    10     This library is distributed in the hope that it will be useful,

    11     but WITHOUT ANY WARRANTY; without even the implied warranty of

    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13     Lesser General Public License for more details.

    14 

    15     You should have received a copy of the GNU Lesser General Public

    16     License along with this library; if not, write to the Free Software

    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    18 

    19     Sam Lantinga

    20     slouken@libsdl.org

    21 */

    22 

    23 #import <UIKit/UIKit.h>

    24 #import <OpenGLES/EAGL.h>

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

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

    27 #import "SDL_uikitview.h"

    28 /*

    29 	This class wraps the CAEAGLLayer from CoreAnimation into a convenient UIView subclass.

    30 	The view content is basically an EAGL surface you render your OpenGL scene into.

    31 	Note that setting the view non-opaque will only work if the EAGL surface has an alpha channel.

    32  */

    33 /* *INDENT-OFF* */

    34 @interface SDL_uikitopenglview : SDL_uikitview {

    35 	

    36 @private

    37 	/* The pixel dimensions of the backbuffer */

    38 	GLint backingWidth;

    39 	GLint backingHeight;

    40 	

    41 	EAGLContext *context;

    42 	

    43 	/* OpenGL names for the renderbuffer and framebuffers used to render to this view */

    44 	GLuint viewRenderbuffer, viewFramebuffer;

    45 	

    46 	/* OpenGL name for the depth buffer that is attached to viewFramebuffer, if it exists (0 if it does not exist) */

    47 	GLuint depthRenderbuffer;

    48 	

    49 }

    50 

    51 @property (nonatomic, retain, readonly) EAGLContext *context;

    52 

    53 - (void)swapBuffers;

    54 - (void)setCurrentContext;

    55 

    56 - (id)initWithFrame:(CGRect)frame

    57 	retainBacking:(BOOL)retained \

    58 	rBits:(int)rBits \

    59 	gBits:(int)gBits \

    60 	bBits:(int)bBits \

    61 	aBits:(int)aBits \

    62 	depthBits:(int)depthBits;

    63 

    64 @end

    65 /* *INDENT-ON* */