Databases
StackOverflow2013
Postsdbo
POmaking a GLView from a View in a nib
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POmaking a GLView from a View in a nib
    primarykey
    data
    text
    <p>I m trying to use one of the views in my nib file as a <code>GLView</code>.</p> <p>In my <code>iphoneDisplay.nib</code> file I have a view set as the custom class to <code>GLView</code> (Code at the bottom) with an outlet set in my app delegate. The View i set changes to a black background color and NSLogs show that it is drawing from both the <code>GLView</code> and from my <code>GLViewController</code> but i dont see anything :/. Anyone know what im doing wrong?</p> <p>My app delegate:</p> <pre><code>#import "HBAppDelegate.h" #import "GLViewController.h" #import "GLView.h" #import "TestFlight.h" @implementation HBAppDelegate @synthesize window=_window; @synthesize viewController=_controller; @synthesize glViewFromNib; - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. self.viewController = [[GLViewController alloc] initWithNibName:@"iPhoneDisplay" bundle:nil]; self.window.rootViewController = self.viewController; glViewFromNib = [[GLView alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; glViewFromNib.controller = self.window.rootViewController; glViewFromNib.animationInterval = 1.0 / kRenderingFrequency; [glViewFromNib startAnimation]; [glViewFromNib setUserInteractionEnabled:false]; [self.window makeKeyAndVisible]; return YES; } @end </code></pre> <p>My <code>GLView</code> (boilerplate code from Jeff LaMarche):</p> <pre><code>// // GLView.m // Part6Project // // Created by jeff on 5/31/09. // Copyright Jeff LaMarche 2009. All rights reserved. // #import &lt;QuartzCore/QuartzCore.h&gt; #import &lt;OpenGLES/EAGLDrawable.h&gt; #import "GLView.h" #import "GLViewController.h" @interface GLView (private) - (id)initGLES; - (BOOL)createFramebuffer; - (void)destroyFramebuffer; @end @implementation GLView @synthesize animationInterval; + (Class) layerClass { return [CAEAGLLayer class]; } -(id)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if(self != nil) { NSLog(@"init with frame"); self = [self initGLES]; } return self; } - (id)initWithCoder:(NSCoder*)coder { if((self = [super initWithCoder:coder])) { self = [self initGLES]; } return self; } -(id)initGLES { NSLog(@"init GLES"); CAEAGLLayer *eaglLayer = (CAEAGLLayer*) self.layer; if ([self respondsToSelector:@selector(contentScaleFactor)]) { self.contentScaleFactor = [[UIScreen mainScreen] scale]; // scale value should be 1.0 on 3G and 3GS, and 2.0 on iPhone 4. self.contentMode = UIViewContentModeScaleToFill; } // Configure it so that it is opaque, does not retain the contents of the backbuffer when displayed, and uses RGBA8888 color. eaglLayer.opaque = YES; eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool:FALSE], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil]; // Create our EAGLContext, and if successful make it current and create our framebuffer. context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1]; if(!context || ![EAGLContext setCurrentContext:context] || ![self createFramebuffer]) { [self release]; return nil; } // Default the animation interval to 1/60th of a second. animationInterval = 1.0 / kRenderingFrequency; return self; } -(GLViewController *)controller { return controller; } -(void)setController:(GLViewController *)d { controller = d; controllerSetup = ![controller respondsToSelector:@selector(setupView:)]; } // If our view is resized, we'll be asked to layout subviews. // This is the perfect opportunity to also update the framebuffer so that it is // the same size as our display area. -(void)layoutSubviews { [EAGLContext setCurrentContext:context]; [self destroyFramebuffer]; [self createFramebuffer]; [self drawView]; } - (BOOL)createFramebuffer { NSLog(@"about to make FB"); // Generate IDs for a framebuffer object and a color renderbuffer glGenFramebuffersOES(1, &amp;viewFramebuffer); glGenRenderbuffersOES(1, &amp;viewRenderbuffer); glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer); glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer); // This call associates the storage for the current render buffer with the EAGLDrawable (our CAEAGLLayer) // allowing us to draw into a buffer that will later be rendered to screen whereever the layer is (which corresponds with our view). [context renderbufferStorage:GL_RENDERBUFFER_OES fromDrawable:(id&lt;EAGLDrawable&gt;)self.layer]; glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, viewRenderbuffer); glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &amp;backingWidth); glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &amp;backingHeight); // For this sample, we also need a depth buffer, so we'll create and attach one via another renderbuffer. glGenRenderbuffersOES(1, &amp;depthRenderbuffer); glBindRenderbufferOES(GL_RENDERBUFFER_OES, depthRenderbuffer); glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_DEPTH_COMPONENT16_OES, backingWidth, backingHeight); glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_DEPTH_ATTACHMENT_OES, GL_RENDERBUFFER_OES, depthRenderbuffer); if(glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES) != GL_FRAMEBUFFER_COMPLETE_OES) { NSLog(@"failed to make complete framebuffer object %x", glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES)); return NO; } return YES; } // Clean up any buffers we have allocated. - (void)destroyFramebuffer { glDeleteFramebuffersOES(1, &amp;viewFramebuffer); viewFramebuffer = 0; glDeleteRenderbuffersOES(1, &amp;viewRenderbuffer); viewRenderbuffer = 0; if(depthRenderbuffer) { glDeleteRenderbuffersOES(1, &amp;depthRenderbuffer); depthRenderbuffer = 0; } } - (void)startAnimation { animationTimer = [NSTimer scheduledTimerWithTimeInterval:animationInterval target:self selector:@selector(drawView) userInfo:nil repeats:YES]; NSLog(@"starting animation"); } - (void)stopAnimation { [animationTimer invalidate]; animationTimer = nil; NSLog(@"stopping animation"); } - (void)setAnimationInterval:(NSTimeInterval)interval { animationInterval = interval; if(animationTimer) { [self stopAnimation]; [self startAnimation]; } } // Updates the OpenGL view when the timer fires - (void)drawView { NSLog(@"draw"); // Make sure that you are drawing to the current context [EAGLContext setCurrentContext:context]; // If our drawing delegate needs to have the view setup, then call -setupView: and flag that it won't need to be called again. if(!controllerSetup) { [controller setupView:self]; controllerSetup = YES; } glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer); [controller drawView:self]; glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer); [context presentRenderbuffer:GL_RENDERBUFFER_OES]; GLenum err = glGetError(); if(err) NSLog(@"%x error", err); } // Stop animating and release resources when they are no longer needed. - (void)dealloc { [self stopAnimation]; if([EAGLContext currentContext] == context) { [EAGLContext setCurrentContext:nil]; } [context release]; context = nil; [super dealloc]; } @end </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USrishi
    1. USjfisk
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POmaking a GLView from a View in a nib
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POmaking a GLView from a View in a nib
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POmaking a GLView from a View in a nib
      1. This table or related slice is empty.
      1. VTUpMod
    1. COShow the view controller's "drawView:" methode
      singulars
      1. POmaking a GLView from a View in a nib
      1. USMatic Oblak
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload