Mercurial > sdl-ios-xcode
view src/video/uikit/SDL_uikitopenglview.h @ 3473:7bdc10624cba
This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 21 Nov 2009 07:14:21 +0000 |
parents | 99210400e8b9 |
children | f7b03b6838cb |
line wrap: on
line source
/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #import <UIKit/UIKit.h> #import <OpenGLES/EAGL.h> #import <OpenGLES/ES1/gl.h> #import <OpenGLES/ES1/glext.h> #import "SDL_uikitview.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. */ /* *INDENT-OFF* */ @interface SDL_uikitopenglview : SDL_uikitview { @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; } @property (nonatomic, retain, readonly) EAGLContext *context; - (void)swapBuffers; - (void)setCurrentContext; - (id)initWithFrame:(CGRect)frame retainBacking:(BOOL)retained \ rBits:(int)rBits \ gBits:(int)gBits \ bBits:(int)bBits \ aBits:(int)aBits \ depthBits:(int)depthBits; @end /* *INDENT-ON* */