on iPad retina @2x loads properly, but -hd loads at half-size even though images are identical

Question

The @2x images are completely identical to the -hd images, other than the suffix. Including both @2x and -hd allows the program to run on all devices properly, but obviously I'd like to get rid of one set to decrease the filesize.

When using [sharedFileUtils setiPadSuffix:@"@2x"], iPad uses the @2x images and everything is great. Loads at correct content scale and everything.

When using [sharedFileUtils setiPadSuffix:@"-hd"], the iPad does use the -hd images (checked with [sharedFileUtils fullPathForFilename:@"image.png"]. However, everything is suddenly loading at 50% size.

(I'm running Cocos2d 3.4.3 and Xcode 6.1.1)

Why is it doing this?

Sorry, it's from CCFileUtils. It lets me overwrite the default suffix for loading images (ie ipad would usually look for -ipad before falling back on -hd). I'm not sure why adding the @2x suffix would allow images to load properly, honestly. — grasshopper, May 18 '15 at 05:58
I am using a single set of textures for all devices. While implementing that i found that the `contentScaleForKey` method in `CCFileUtils` returns a bum value. I found no other way than doctoring that in cocos' distribution. Works on all devices now, with the caveat that i must be extra careful if i want to update cocos2d (NEVER mid-project in my bit factory). — YvesLeBorg, May 18 '15 at 15:04
related question http://stackoverflow.com/questions/29853468/cocos2d-swift-v3-x-in-ipad-iphone-sd-images-are-used-ipad-suffix-ignored/29919806#29919806 — Guru, May 22 '15 at 16:13
@YvesLeBorg if you add this as an answer I'll accept it! seems to be the best solution for now! — grasshopper, Jun 30 '15 at 00:08

score 0 · Accepted Answer · answered Jun 30 '15 at 00:27

warning : not for the faint of heart.

I am using a single set of textures for all devices (the -hd variant). While implementing that i found that the contentScaleForKey method in CCFileUtils returns a bum value. I found no other way than doctoring that in cocos' distribution, as follows :

-(CGFloat) contentScaleForKey:(NSString*)k inDictionary:(NSDictionary *)dictionary
{
    // XXX XXX Super Slow
    // ylb fix for single set of textures
    return 2.0f;
    // ylb : super fast now :)
}

I set this up as follows in AppDelegate (version 3.2.1) :

@implementation AppDelegate

NSString *kCCFileUtilsSuffixDefault   = @"default";
NSString *kCCFileUtilsSuffixiPad      = @"ipad";
NSString *kCCFileUtilsSuffixiPadHD    = @"ipadhd";
NSString *kCCFileUtilsSuffixiPhone    = @"iphone";
NSString *kCCFileUtilsSuffixiPhoneHD  = @"iphonehd";
NSString *kCCFileUtilsSuffixiPhone5   = @"iphone5";
NSString *kCCFileUtilsSuffixiPhone5HD = @"iphone5hd";

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // This is the only app delegate method you need to implement when inheriting from CCAppDelegate.
    // This method is a good place to add one time setup code that only runs when your app is first launched.

    // Setup Cocos2D with reasonable defaults for everything.
    // There are a number of simple options you can change.
    // If you want more flexibility, you can configure Cocos2D yourself instead of calling setupCocos2dWithOptions:.
   //    [[CCFileUtils sharedFileUtils] setEnableiPhoneResourcesOniPad:YES];

    [GEFileUtil initializeWithProductDirectoryName:@"battles" andMaximumGames:4];
    TRACE(@"Setting up cocos2d in fixed screen mode");
    [GERuntimeConstants setDeviceType:CCScreenModeFixedSize];
    NSDictionary *dic = [CCFileUtils sharedFileUtils].suffixesDict;
    [dic setValue:@"-hd" forKey:kCCFileUtilsSuffixDefault];
    [dic setValue:@"-hd" forKey:kCCFileUtilsSuffixiPhone];
    [dic setValue:@"-hd" forKey:kCCFileUtilsSuffixiPad];
    [dic setValue:@"-hd" forKey:kCCFileUtilsSuffixiPadHD];
    [dic setValue:@"-hd" forKey:kCCFileUtilsSuffixiPhoneHD];
    [dic setValue:@"-hd" forKey:kCCFileUtilsSuffixiPhone5];
    [dic setValue:@"-hd" forKey:kCCFileUtilsSuffixiPhone5HD];

    [self setupCocos2dWithOptions:@{
        // Show the FPS and draw call label.
        CCSetupShowDebugStats : @(YES),

        // More examples of options you might want to fiddle with:
        // (See CCAppDelegate.h for more information)
        // Use a 16 bit color buffer:
        // CCSetupPixelFormat: kEAGLColorFormatRGB565,

        // Use a simplified coordinate system that is shared across devices.
        CCSetupScreenMode : CCScreenModeFixed,

        // Run in landscape mode.
        CCSetupScreenOrientation : CCScreenOrientationLandscape,

        // Run at a reduced framerate. Prefer that to 'dang' jitter
        CCSetupAnimationInterval : @(1.0 / 30.0),

        // Run the fixed timestep extra fast.
        CCSetupFixedUpdateInterval : @(1.0 / 60.0),

        // clipping with stensil
        CCSetupDepthFormat : [NSNumber numberWithUnsignedInt:GL_DEPTH24_STENCIL8_OES],
        // Make iPad's act like they run at a 2x content scale. (iPad retina 4x)
        //      CCSetupTabletScale2X: @(YES),
    }];

Works on all devices now, with the caveat that i must be extra careful if i want to update cocos2d (NEVER mid-project in my bit factory).

on iPad retina @2x loads properly, but -hd loads at half-size even though images are identical

1 Answers1