sgl

annotate src/wsys_ios.m @ 37:b3374e30361c

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xcode project for uikit version, untested
author John Tsiombikas <nuclear@member.fsf.org>
date Wed, 27 Jun 2012 05:15:50 +0300
parents af9d2e895594
children e1a27aa24956
rev   line source
nuclear@36 1 #include <assert.h>
nuclear@36 2 #import <UIKit/UIKit.h>
nuclear@37 3 #import <QuartzCore/QuartzCore.h>
nuclear@36 4 #include <OpenGLES/ES2/gl.h>
nuclear@36 5 #include <OpenGLES/ES2/glext.h>
nuclear@36 6
nuclear@37 7 @interface SGLView : UIView {
nuclear@36 8 @private
nuclear@36 9 BOOL active;
nuclear@36 10 BOOL use_disp_link;
nuclear@36 11 NSInteger frame_interval;
nuclear@36 12 id disp_link;
nuclear@36 13 NSTimer *anim_timer;
nuclear@36 14 EAGLContext *ctx;
nuclear@36 15 unsigned int fbo, rbuf_color, rbuf_depth;
nuclear@36 16 }
nuclear@36 17
nuclear@37 18 @property (readonly, nonatomic, getter=isAnimating) BOOL active;
nuclear@37 19 @property (nonatomic) NSInteger frame_interval;
nuclear@37 20
nuclear@36 21 -(void)start_anim;
nuclear@36 22 -(void)stop_anim;
nuclear@37 23 -(void)drawView: (id)sender;
nuclear@36 24 @end
nuclear@36 25
nuclear@36 26 @interface SGLDelegate : NSObject <UIApplicationDelegate> {
nuclear@36 27 UIWindow *win;
nuclear@37 28 SGLView *view;
nuclear@36 29 }
nuclear@37 30
nuclear@37 31 @property (nonatomic, retain) IBOutlet UIWindow *win;
nuclear@37 32 @property (nonatomic, retain) IBOutlet SGLView *view;
nuclear@36 33 @end
nuclear@36 34
nuclear@36 35
nuclear@36 36
nuclear@37 37 @implementation SGLView
nuclear@36 38
nuclear@37 39 @synthesize active;
nuclear@36 40 @dynamic frame_interval;
nuclear@36 41
nuclear@36 42 +(Class)layerClass
nuclear@36 43 {
nuclear@36 44 return [CAEAGLLayer class];
nuclear@36 45 }
nuclear@36 46
nuclear@36 47 //The EAGL view is stored in the nib file. When it's unarchived it's sent -initWithCoder:
nuclear@36 48 -(id)initWithCoder: (NSCoder*)coder
nuclear@36 49 {
nuclear@36 50 if((self = [super initWithCoder: coder])) {
nuclear@36 51 // Get the layer
nuclear@36 52 CAEAGLLayer *layer = (CAEAGLLayer*)self.layer;
nuclear@36 53
nuclear@36 54 //self.contentScaleFactor = 2.0;
nuclear@36 55
nuclear@36 56 layer.opaque = TRUE;
nuclear@36 57 layer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
nuclear@36 58 [NSNumber numberWithBool: FALSE],
nuclear@36 59 kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8,
nuclear@36 60 kEAGLDrawablePropertyColorFormat,
nuclear@36 61 nil];
nuclear@36 62
nuclear@36 63 ctx = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2];
nuclear@36 64 if(!ctx || ![EAGLContext setCurrentContext: ctx]) {
nuclear@36 65 [self release];
nuclear@36 66 return nil;
nuclear@36 67 }
nuclear@36 68
nuclear@36 69 // initialize fbos etc...
nuclear@36 70 glGenFramebuffers(1, &fbo);
nuclear@36 71 glBindFramebuffer(GL_FRAMEBUFFER, fbo);
nuclear@36 72
nuclear@36 73 glGenRenderbuffers(1, &rbuf_color);
nuclear@36 74 glBindRenderbuffer(GL_RENDERBUFFER, rbuf_color);
nuclear@36 75 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbuf_color);
nuclear@36 76
nuclear@36 77 glGenRenderbuffers(1, &rbuf_depth);
nuclear@36 78 glBindRenderbuffer(GL_RENDERBUFFER, rbuf_depth);
nuclear@36 79 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rbuf_depth);
nuclear@36 80 assert(glGetError() == GL_NO_ERROR);
nuclear@36 81
nuclear@37 82 active = FALSE;
nuclear@36 83 use_disp_link = FALSE;
nuclear@36 84 frame_interval = 1;
nuclear@36 85 disp_link = nil;
nuclear@36 86 anim_timer = nil;
nuclear@36 87
nuclear@36 88 // A system version of 3.1 or greater is required to use CADisplayLink. The NSTimer
nuclear@36 89 // class is used as fallback when it isn't available.
nuclear@36 90 NSString *req_ver = @"3.1";
nuclear@36 91 NSString *cur_ver = [[UIDevice currentDevice] systemVersion];
nuclear@37 92 if([cur_ver compare: req_ver options: NSNumericSearch] != NSOrderedAscending) {
nuclear@36 93 use_disp_link = TRUE;
nuclear@36 94 }
nuclear@36 95
nuclear@36 96 //self.multipleTouchEnabled = 1;
nuclear@36 97
nuclear@36 98 // TODO call user init ?
nuclear@36 99 }
nuclear@36 100
nuclear@36 101 return self;
nuclear@36 102 }
nuclear@36 103
nuclear@36 104 -(void)drawView: (id)sender
nuclear@36 105 {
nuclear@36 106 // TODO call display
nuclear@36 107 }
nuclear@36 108
nuclear@36 109 -(void)layoutSubviews
nuclear@36 110 {
nuclear@36 111 // TODO call reshape
nuclear@36 112 // XXX originally call to renderer resizeFromLayer
nuclear@36 113 // XXX originally call to [self drawView: nil]
nuclear@36 114 }
nuclear@36 115
nuclear@36 116 -(void)setAnimationFrameInterval: (NSInteger)interval
nuclear@36 117 {
nuclear@36 118 /* Frame interval defines how many display frames must pass
nuclear@36 119 * between each time the display link fires. The display
nuclear@36 120 * link will only fire 30 times a second when the frame
nuclear@36 121 * internal is two on a display that refreshes 60 times a
nuclear@36 122 * second. The default frame interval setting of one will
nuclear@36 123 * fire 60 times a second when the display refreshes at 60
nuclear@36 124 * times a second. A frame interval setting of less than
nuclear@36 125 * one results in undefined behavior.
nuclear@36 126 */
nuclear@36 127 if(interval >= 1) {
nuclear@36 128 frame_interval = frame_interval;
nuclear@36 129
nuclear@36 130 if(active)
nuclear@36 131 {
nuclear@37 132 [self stop_anim];
nuclear@37 133 [self start_anim];
nuclear@36 134 }
nuclear@36 135 }
nuclear@36 136 }
nuclear@36 137
nuclear@37 138 -(void)start_anim
nuclear@36 139 {
nuclear@36 140 if(!active) {
nuclear@36 141 if(use_disp_link) {
nuclear@36 142 // CADisplayLink is API new to iPhone SDK 3.1. Compiling against earlier versions will result in a warning, but can be dismissed
nuclear@36 143 // if the system version runtime check for CADisplayLink exists in -initWithCoder:. The runtime check ensures this code will
nuclear@36 144 // not be called in system versions earlier than 3.1.
nuclear@36 145
nuclear@36 146 disp_link = [NSClassFromString(@"CADisplayLink") displayLinkWithTarget: self
nuclear@36 147 selector: @selector(drawView:)];
nuclear@37 148 [disp_link setFrameInterval: frame_interval];
nuclear@37 149 [disp_link addToRunLoop: [NSRunLoop currentRunLoop] forMode: NSDefaultRunLoopMode];
nuclear@36 150 } else {
nuclear@36 151 anim_timer = [NSTimer scheduledTimerWithTimeInterval: (NSTimeInterval)((1.0 / 60.0) * frame_interval)
nuclear@36 152 target: self selector: @selector(drawView:) userInfo: nil
nuclear@36 153 repeats: TRUE];
nuclear@36 154 }
nuclear@36 155
nuclear@36 156 active = TRUE;
nuclear@36 157 }
nuclear@36 158 }
nuclear@36 159
nuclear@37 160 - (void)stop_anim
nuclear@36 161 {
nuclear@36 162 if(active) {
nuclear@36 163 if(use_disp_link) {
nuclear@36 164 [disp_link invalidate];
nuclear@36 165 disp_link = nil;
nuclear@36 166 } else {
nuclear@36 167 [anim_timer invalidate];
nuclear@36 168 anim_timer = nil;
nuclear@36 169 }
nuclear@36 170
nuclear@36 171 active = FALSE;
nuclear@36 172 }
nuclear@36 173 }
nuclear@36 174
nuclear@36 175 -(void)dealloc
nuclear@36 176 {
nuclear@36 177 // XXX originally [renderer release];
nuclear@36 178 [super dealloc];
nuclear@36 179 }
nuclear@36 180 @end
nuclear@36 181
nuclear@36 182 @implementation SGLDelegate
nuclear@36 183
nuclear@36 184 @synthesize win;
nuclear@36 185 @synthesize view;
nuclear@36 186
nuclear@36 187 -(BOOL)application: (UIApplication*)app didFinishLaunchingWithOptions: (NSDictionary*)opt
nuclear@36 188 {
nuclear@37 189 [view start_anim];
nuclear@36 190 return YES;
nuclear@36 191 }
nuclear@36 192
nuclear@36 193 -(void)applicationWillResignActive: (UIApplication*)app
nuclear@36 194 {
nuclear@37 195 [view stop_anim];
nuclear@36 196 }
nuclear@36 197
nuclear@36 198 -(void)applicationDidBecomeActive: (UIApplication*)app
nuclear@36 199 {
nuclear@37 200 [view start_anim];
nuclear@36 201 }
nuclear@36 202
nuclear@36 203 -(void)applicationWillTerminate: (UIApplication*)app
nuclear@36 204 {
nuclear@37 205 [view stop_anim];
nuclear@36 206 }
nuclear@36 207
nuclear@36 208 -(void)dealloc
nuclear@36 209 {
nuclear@36 210 [win release];
nuclear@36 211 [view release];
nuclear@36 212 [super dealloc];
nuclear@36 213 }
nuclear@36 214 @end