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annotate src/wsys_ios.m @ 36:af9d2e895594

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started work on ios module
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 24 Feb 2012 08:49:29 +0200
parents
children b3374e30361c
rev   line source
nuclear@36 1 #include <assert.h>
nuclear@36 2 #import <UIKit/UIKit.h>
nuclear@36 3 #include <OpenGLES/ES2/gl.h>
nuclear@36 4 #include <OpenGLES/ES2/glext.h>
nuclear@36 5
nuclear@36 6 @interface GLView : UIView {
nuclear@36 7 @private
nuclear@36 8 BOOL active;
nuclear@36 9 BOOL use_disp_link;
nuclear@36 10 NSInteger frame_interval;
nuclear@36 11 id disp_link;
nuclear@36 12 NSTimer *anim_timer;
nuclear@36 13 EAGLContext *ctx;
nuclear@36 14 unsigned int fbo, rbuf_color, rbuf_depth;
nuclear@36 15 }
nuclear@36 16
nuclear@36 17 -(void)start_anim;
nuclear@36 18 -(void)stop_anim;
nuclear@36 19 -(void)draw: (id)sender;
nuclear@36 20 @end
nuclear@36 21
nuclear@36 22 @interface SGLDelegate : NSObject <UIApplicationDelegate> {
nuclear@36 23 UIWindow *win;
nuclear@36 24 GLView *view;
nuclear@36 25 }
nuclear@36 26 @end
nuclear@36 27
nuclear@36 28
nuclear@36 29
nuclear@36 30 @implementation GLView
nuclear@36 31
nuclear@36 32 @synthesize animating;
nuclear@36 33 @dynamic frame_interval;
nuclear@36 34
nuclear@36 35 +(Class)layerClass
nuclear@36 36 {
nuclear@36 37 return [CAEAGLLayer class];
nuclear@36 38 }
nuclear@36 39
nuclear@36 40 //The EAGL view is stored in the nib file. When it's unarchived it's sent -initWithCoder:
nuclear@36 41 -(id)initWithCoder: (NSCoder*)coder
nuclear@36 42 {
nuclear@36 43 if((self = [super initWithCoder: coder])) {
nuclear@36 44 // Get the layer
nuclear@36 45 CAEAGLLayer *layer = (CAEAGLLayer*)self.layer;
nuclear@36 46
nuclear@36 47 //self.contentScaleFactor = 2.0;
nuclear@36 48
nuclear@36 49 layer.opaque = TRUE;
nuclear@36 50 layer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
nuclear@36 51 [NSNumber numberWithBool: FALSE],
nuclear@36 52 kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8,
nuclear@36 53 kEAGLDrawablePropertyColorFormat,
nuclear@36 54 nil];
nuclear@36 55
nuclear@36 56 ctx = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2];
nuclear@36 57 if(!ctx || ![EAGLContext setCurrentContext: ctx]) {
nuclear@36 58 [self release];
nuclear@36 59 return nil;
nuclear@36 60 }
nuclear@36 61
nuclear@36 62 // initialize fbos etc...
nuclear@36 63 glGenFramebuffers(1, &fbo);
nuclear@36 64 glBindFramebuffer(GL_FRAMEBUFFER, fbo);
nuclear@36 65
nuclear@36 66 glGenRenderbuffers(1, &rbuf_color);
nuclear@36 67 glBindRenderbuffer(GL_RENDERBUFFER, rbuf_color);
nuclear@36 68 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbuf_color);
nuclear@36 69
nuclear@36 70 glGenRenderbuffers(1, &rbuf_depth);
nuclear@36 71 glBindRenderbuffer(GL_RENDERBUFFER, rbuf_depth);
nuclear@36 72 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rbuf_depth);
nuclear@36 73 assert(glGetError() == GL_NO_ERROR);
nuclear@36 74
nuclear@36 75 animating = FALSE;
nuclear@36 76 use_disp_link = FALSE;
nuclear@36 77 frame_interval = 1;
nuclear@36 78 disp_link = nil;
nuclear@36 79 anim_timer = nil;
nuclear@36 80
nuclear@36 81 // A system version of 3.1 or greater is required to use CADisplayLink. The NSTimer
nuclear@36 82 // class is used as fallback when it isn't available.
nuclear@36 83 NSString *req_ver = @"3.1";
nuclear@36 84 NSString *cur_ver = [[UIDevice currentDevice] systemVersion];
nuclear@36 85 if([curr_ver compare: req_ver options: NSNumericSearch] != NSOrderedAscending) {
nuclear@36 86 use_disp_link = TRUE;
nuclear@36 87 }
nuclear@36 88
nuclear@36 89 //self.multipleTouchEnabled = 1;
nuclear@36 90
nuclear@36 91 // TODO call user init ?
nuclear@36 92 }
nuclear@36 93
nuclear@36 94 return self;
nuclear@36 95 }
nuclear@36 96
nuclear@36 97 -(void)drawView: (id)sender
nuclear@36 98 {
nuclear@36 99 // TODO call display
nuclear@36 100 }
nuclear@36 101
nuclear@36 102 -(void)layoutSubviews
nuclear@36 103 {
nuclear@36 104 // TODO call reshape
nuclear@36 105 // XXX originally call to renderer resizeFromLayer
nuclear@36 106 // XXX originally call to [self drawView: nil]
nuclear@36 107 }
nuclear@36 108
nuclear@36 109 -(void)setAnimationFrameInterval: (NSInteger)interval
nuclear@36 110 {
nuclear@36 111 /* Frame interval defines how many display frames must pass
nuclear@36 112 * between each time the display link fires. The display
nuclear@36 113 * link will only fire 30 times a second when the frame
nuclear@36 114 * internal is two on a display that refreshes 60 times a
nuclear@36 115 * second. The default frame interval setting of one will
nuclear@36 116 * fire 60 times a second when the display refreshes at 60
nuclear@36 117 * times a second. A frame interval setting of less than
nuclear@36 118 * one results in undefined behavior.
nuclear@36 119 */
nuclear@36 120 if(interval >= 1) {
nuclear@36 121 frame_interval = frame_interval;
nuclear@36 122
nuclear@36 123 if(active)
nuclear@36 124 {
nuclear@36 125 [self stopAnimation];
nuclear@36 126 [self startAnimation];
nuclear@36 127 }
nuclear@36 128 }
nuclear@36 129 }
nuclear@36 130
nuclear@36 131 -(void)startAnimation
nuclear@36 132 {
nuclear@36 133 if(!active) {
nuclear@36 134 if(use_disp_link) {
nuclear@36 135 // CADisplayLink is API new to iPhone SDK 3.1. Compiling against earlier versions will result in a warning, but can be dismissed
nuclear@36 136 // if the system version runtime check for CADisplayLink exists in -initWithCoder:. The runtime check ensures this code will
nuclear@36 137 // not be called in system versions earlier than 3.1.
nuclear@36 138
nuclear@36 139 disp_link = [NSClassFromString(@"CADisplayLink") displayLinkWithTarget: self
nuclear@36 140 selector: @selector(drawView:)];
nuclear@36 141 [displayLink setFrameInterval: frame_interval];
nuclear@36 142 [displayLink addToRunLoop: [NSRunLoop currentRunLoop] forMode: NSDefaultRunLoopMode];
nuclear@36 143 } else {
nuclear@36 144 anim_timer = [NSTimer scheduledTimerWithTimeInterval: (NSTimeInterval)((1.0 / 60.0) * frame_interval)
nuclear@36 145 target: self selector: @selector(drawView:) userInfo: nil
nuclear@36 146 repeats: TRUE];
nuclear@36 147 }
nuclear@36 148
nuclear@36 149 active = TRUE;
nuclear@36 150 }
nuclear@36 151 }
nuclear@36 152
nuclear@36 153 - (void)stopAnimation
nuclear@36 154 {
nuclear@36 155 if(active) {
nuclear@36 156 if(use_disp_link) {
nuclear@36 157 [disp_link invalidate];
nuclear@36 158 disp_link = nil;
nuclear@36 159 } else {
nuclear@36 160 [anim_timer invalidate];
nuclear@36 161 anim_timer = nil;
nuclear@36 162 }
nuclear@36 163
nuclear@36 164 active = FALSE;
nuclear@36 165 }
nuclear@36 166 }
nuclear@36 167
nuclear@36 168 -(void)dealloc
nuclear@36 169 {
nuclear@36 170 // XXX originally [renderer release];
nuclear@36 171 [super dealloc];
nuclear@36 172 }
nuclear@36 173 @end
nuclear@36 174
nuclear@36 175 @implementation SGLDelegate
nuclear@36 176
nuclear@36 177 @synthesize win;
nuclear@36 178 @synthesize view;
nuclear@36 179
nuclear@36 180 -(BOOL)application: (UIApplication*)app didFinishLaunchingWithOptions: (NSDictionary*)opt
nuclear@36 181 {
nuclear@36 182 [view startAnimation];
nuclear@36 183 return YES;
nuclear@36 184 }
nuclear@36 185
nuclear@36 186 -(void)applicationWillResignActive: (UIApplication*)app
nuclear@36 187 {
nuclear@36 188 [view stopAnimation];
nuclear@36 189 }
nuclear@36 190
nuclear@36 191 -(void)applicationDidBecomeActive: (UIApplication*)app
nuclear@36 192 {
nuclear@36 193 [view startAnimation];
nuclear@36 194 }
nuclear@36 195
nuclear@36 196 -(void)applicationWillTerminate: (UIApplication*)app
nuclear@36 197 {
nuclear@36 198 [view stopAnimation];
nuclear@36 199 }
nuclear@36 200
nuclear@36 201 -(void)dealloc
nuclear@36 202 {
nuclear@36 203 [win release];
nuclear@36 204 [view release];
nuclear@36 205 [super dealloc];
nuclear@36 206 }
nuclear@36 207 @end