-/* xscreensaver, Copyright (c) 2006-2012 Jamie Zawinski <jwz@jwz.org>
-*
-* Permission to use, copy, modify, distribute, and sell this software and its
-* documentation for any purpose is hereby granted without fee, provided that
-* the above copyright notice appear in all copies and that both that
-* copyright notice and this permission notice appear in supporting
-* documentation. No representations are made about the suitability of this
-* software for any purpose. It is provided "as is" without express or
-* implied warranty.
-*/
+/* xscreensaver, Copyright (c) 2006-2014 Jamie Zawinski <jwz@jwz.org>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation. No representations are made about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ */
/* This is a subclass of Apple's ScreenSaverView that knows how to run
xscreensaver programs without X11 via the dark magic of the "jwxyz"
*/
#import <QuartzCore/QuartzCore.h>
+#import <zlib.h>
#import "XScreenSaverView.h"
#import "XScreenSaverConfigSheet.h"
+#import "Updater.h"
#import "screenhackI.h"
#import "xlockmoreI.h"
#import "jwxyz-timers.h"
+
/* Garbage collection only exists if we are being compiled against the
10.6 SDK or newer, not if we are building against the 10.4 SDK.
*/
# ifdef USE_IPHONE
+# define NSSizeToCGSize(x) (x)
+
+extern NSDictionary *make_function_table_dict(void); // ios-function-table.m
+
/* Stub definition of the superclass, for iPhone.
*/
@implementation ScreenSaverView
+@interface XScreenSaverView (Private)
+- (void) stopAndClose:(Bool)relaunch;
+@end
+
@implementation XScreenSaverView
// Given a lower-cased saver name, returns the function table for it.
CFBundleRef cfb = CFBundleCreate (kCFAllocatorDefault, url);
CFRelease (url);
NSAssert1 (cfb, @"no CFBundle for \"%@\"", path);
+ // #### Analyze says "Potential leak of an object stored into cfb"
if (! name)
name = [[path lastPathComponent] stringByDeletingPathExtension];
- NSString *table_name = [[name lowercaseString]
- stringByAppendingString:
- @"_xscreensaver_function_table"];
+ name = [[name lowercaseString]
+ stringByReplacingOccurrencesOfString:@" "
+ withString:@""];
+
+# ifndef USE_IPHONE
+ // CFBundleGetDataPointerForName doesn't work in "Archive" builds.
+ // I'm guessing that symbol-stripping is mandatory. Fuck.
+ NSString *table_name = [name stringByAppendingString:
+ @"_xscreensaver_function_table"];
void *addr = CFBundleGetDataPointerForName (cfb, (CFStringRef) table_name);
CFRelease (cfb);
if (! addr)
NSLog (@"no symbol \"%@\" for \"%@\"", table_name, path);
+# else // USE_IPHONE
+ // Depends on the auto-generated "ios-function-table.m" being up to date.
+ if (! function_tables)
+ function_tables = [make_function_table_dict() retain];
+ NSValue *v = [function_tables objectForKey: name];
+ void *addr = v ? [v pointerValue] : 0;
+# endif // USE_IPHONE
+
return (struct xscreensaver_function_table *) addr;
}
strcat (npath, opath);
if (putenv (npath)) {
perror ("putenv");
- abort();
+ NSAssert1 (0, @"putenv \"%s\" failed", npath);
}
/* Don't free (npath) -- MacOS's putenv() does not copy it. */
strcat (env, s);
if (putenv (env)) {
perror ("putenv");
- abort();
+ NSAssert1 (0, @"putenv \"%s\" failed", env);
}
/* Don't free (env) -- MacOS's putenv() does not copy it. */
}
{ "-image-directory", ".imageDirectory", XrmoptionSepArg, 0 },
{ "-fps", ".doFPS", XrmoptionNoArg, "True" },
{ "-no-fps", ".doFPS", XrmoptionNoArg, "False"},
+ { "-foreground", ".foreground", XrmoptionSepArg, 0 },
+ { "-fg", ".foreground", XrmoptionSepArg, 0 },
+ { "-background", ".background", XrmoptionSepArg, 0 },
+ { "-bg", ".background", XrmoptionSepArg, 0 },
+
+# ifndef USE_IPHONE
+ // <xscreensaver-updater />
+ { "-" SUSUEnableAutomaticChecksKey,
+ "." SUSUEnableAutomaticChecksKey, XrmoptionNoArg, "True" },
+ { "-no-" SUSUEnableAutomaticChecksKey,
+ "." SUSUEnableAutomaticChecksKey, XrmoptionNoArg, "False" },
+ { "-" SUAutomaticallyUpdateKey,
+ "." SUAutomaticallyUpdateKey, XrmoptionNoArg, "True" },
+ { "-no-" SUAutomaticallyUpdateKey,
+ "." SUAutomaticallyUpdateKey, XrmoptionNoArg, "False" },
+ { "-" SUSendProfileInfoKey,
+ "." SUSendProfileInfoKey, XrmoptionNoArg,"True" },
+ { "-no-" SUSendProfileInfoKey,
+ "." SUSendProfileInfoKey, XrmoptionNoArg,"False"},
+ { "-" SUScheduledCheckIntervalKey,
+ "." SUScheduledCheckIntervalKey, XrmoptionSepArg, 0 },
+# endif // !USE_IPHONE
+
{ 0, 0, 0, 0 }
};
static const char *default_defaults [] = {
# endif
// ".textLiteral: ",
// ".textFile: ",
- ".textURL: http://twitter.com/statuses/public_timeline.atom",
+ ".textURL: http://en.wikipedia.org/w/index.php?title=Special:NewPages&feed=rss",
// ".textProgram: ",
".grabDesktopImages: yes",
+# ifndef USE_IPHONE
".chooseRandomImages: no",
+# else
+ ".chooseRandomImages: yes",
+# endif
".imageDirectory: ~/Pictures",
".relaunchDelay: 2",
+ ".texFontCacheSize: 30",
+
+# ifndef USE_IPHONE
+# define STR1(S) #S
+# define STR(S) STR1(S)
+# define __objc_yes Yes
+# define __objc_no No
+ "." SUSUEnableAutomaticChecksKey ": " STR(SUSUEnableAutomaticChecksDef),
+ "." SUAutomaticallyUpdateKey ": " STR(SUAutomaticallyUpdateDef),
+ "." SUSendProfileInfoKey ": " STR(SUSendProfileInfoDef),
+ "." SUScheduledCheckIntervalKey ": " STR(SUScheduledCheckIntervalDef),
+# undef __objc_yes
+# undef __objc_no
+# undef STR1
+# undef STR
+# endif // USE_IPHONE
0
};
}
#endif // USE_IPHONE
+#if TARGET_IPHONE_SIMULATOR
+static const char *
+orientname(unsigned long o)
+{
+ switch (o) {
+ case UIDeviceOrientationUnknown: return "Unknown";
+ case UIDeviceOrientationPortrait: return "Portrait";
+ case UIDeviceOrientationPortraitUpsideDown: return "PortraitUpsideDown";
+ case UIDeviceOrientationLandscapeLeft: return "LandscapeLeft";
+ case UIDeviceOrientationLandscapeRight: return "LandscapeRight";
+ case UIDeviceOrientationFaceUp: return "FaceUp";
+ case UIDeviceOrientationFaceDown: return "FaceDown";
+ default: return "ERROR";
+ }
+}
+#endif // TARGET_IPHONE_SIMULATOR
+
- (id) initWithFrame:(NSRect)frame
saverName:(NSString *)saverName
isPreview:(BOOL)isPreview
{
-# ifdef USE_IPHONE
- rot_current_size = frame.size; // needs to be early, because
- rot_from = rot_current_size; // [self setFrame] is called by
- rot_to = rot_current_size; // [super initWithFrame].
- rotation_ratio = -1;
-# endif
-
if (! (self = [super initWithFrame:frame isPreview:isPreview]))
return 0;
[self setShellPath];
-# ifdef USE_IPHONE
- [self setMultipleTouchEnabled:YES];
- orientation = UIDeviceOrientationUnknown;
- [self didRotate:nil];
-# endif // USE_IPHONE
-
setup_p = YES;
if (xsft->setup_cb)
xsft->setup_cb (xsft, xsft->setup_arg);
"org.jwz.xscreensaver.<SAVERNAME>.<NUMBERS>.plist"
*/
NSString *name = [NSString stringWithCString:xsft->progclass
- encoding:NSUTF8StringEncoding];
+ encoding:NSISOLatin1StringEncoding];
name = [@"org.jwz.xscreensaver." stringByAppendingString:name];
[self setResourcesEnv:name];
progname = progclass = xsft->progclass;
next_frame_time = 0;
-
+
# ifdef USE_IPHONE
- [self createBackbuffer];
+ double s = [self hackedContentScaleFactor];
+# else
+ double s = 1;
+# endif
+
+ CGSize bb_size; // pixels, not points
+ bb_size.width = s * frame.size.width;
+ bb_size.height = s * frame.size.height;
+
+# ifdef USE_IPHONE
+ initial_bounds = rot_current_size = rot_from = rot_to = bb_size;
+ rotation_ratio = -1;
+
+ orientation = UIDeviceOrientationUnknown;
+ [self didRotate:nil];
+ [self initGestures];
// So we can tell when we're docked.
[UIDevice currentDevice].batteryMonitoringEnabled = YES;
# endif // USE_IPHONE
+# ifdef USE_BACKBUFFER
+ [self createBackbuffer:bb_size];
+ [self initLayer];
+# endif
+
return self;
}
+- (void) initLayer
+{
+# if !defined(USE_IPHONE) && defined(BACKBUFFER_CALAYER)
+ [self setLayer: [CALayer layer]];
+ self.layer.delegate = self;
+ self.layer.opaque = YES;
+ [self setWantsLayer: YES];
+# endif // !USE_IPHONE && BACKBUFFER_CALAYER
+}
+
+
- (id) initWithFrame:(NSRect)frame isPreview:(BOOL)p
{
return [self initWithFrame:frame saverName:0 isPreview:p];
{
NSAssert(![self isAnimating], @"still animating");
NSAssert(!xdata, @"xdata not yet freed");
- if (xdpy)
- jwxyz_free_display (xdpy);
+ NSAssert(!xdpy, @"xdpy not yet freed");
-# ifdef USE_IPHONE
+# ifdef USE_BACKBUFFER
if (backbuffer)
CGContextRelease (backbuffer);
-# endif
+
+ if (colorspace)
+ CGColorSpaceRelease (colorspace);
+
+# ifdef BACKBUFFER_CGCONTEXT
+ if (window_ctx)
+ CGContextRelease (window_ctx);
+# endif // BACKBUFFER_CGCONTEXT
+
+# endif // USE_BACKBUFFER
[prefsReader release];
// xsft
// fpst
- // orientation_timer
[super dealloc];
}
*/
- (void) allSystemsGo: (NSTimer *) timer
{
- NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
- [prefs setBool:YES forKey:@"wasRunning"];
NSAssert (timer == crash_timer, @"crash timer screwed up");
crash_timer = 0;
+
+ NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
+ [prefs setBool:YES forKey:@"wasRunning"];
+ [prefs synchronize];
}
#endif // USE_IPHONE
{
NSAssert(![self isAnimating], @"already animating");
NSAssert(!initted_p && !xdata, @"already initialized");
+
+ // See comment in render_x11() for why this value is important:
+ [self setAnimationTimeInterval: 1.0 / 120.0];
+
[super startAnimation];
/* We can't draw on the window from this method, so we actually do the
initialization of the screen saver (xsft->init_cb) in the first call
# ifdef USE_IPHONE
if (crash_timer)
[crash_timer invalidate];
+
+ NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
+ [prefs removeObjectForKey:@"wasRunning"];
+ [prefs synchronize];
+
crash_timer = [NSTimer scheduledTimerWithTimeInterval: 5
target:self
selector:@selector(allSystemsGo:)
userInfo:nil
repeats:NO];
+
# endif // USE_IPHONE
// Never automatically turn the screen off if we are docked,
# ifdef USE_IPHONE
[UIApplication sharedApplication].idleTimerDisabled =
([UIDevice currentDevice].batteryState != UIDeviceBatteryStateUnplugged);
+ [[UIApplication sharedApplication]
+ setStatusBarHidden:YES withAnimation:UIStatusBarAnimationNone];
# endif
}
xsft->free_cb (xdpy, xwindow, xdata);
[self unlockFocus];
+ // xdpy must be freed before dealloc is called, because xdpy owns a
+ // circular reference to the parent XScreenSaverView.
+ jwxyz_free_display (xdpy);
+ xdpy = NULL;
+ xwindow = NULL;
+
// setup_p = NO; // #### wait, do we need this?
initted_p = NO;
xdata = 0;
crash_timer = 0;
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
[prefs removeObjectForKey:@"wasRunning"];
+ [prefs synchronize];
# endif // USE_IPHONE
[super stopAnimation];
//
# ifdef USE_IPHONE
[UIApplication sharedApplication].idleTimerDisabled = NO;
+ [[UIApplication sharedApplication]
+ setStatusBarHidden:NO withAnimation:UIStatusBarAnimationNone];
# endif
}
fps_draw (fpst);
}
+
#ifdef USE_IPHONE
-/* Create a bitmap context into which we render everything.
+/* On iPhones with Retina displays, we can draw the savers in "real"
+ pixels, and that works great. The 320x480 "point" screen is really
+ a 640x960 *pixel* screen. However, Retina iPads have 768x1024
+ point screens which are 1536x2048 pixels, and apparently that's
+ enough pixels that copying those bits to the screen is slow. Like,
+ drops us from 15fps to 7fps. So, on Retina iPads, we don't draw in
+ real pixels. This will probably make the savers look better
+ anyway, since that's a higher resolution than most desktop monitors
+ have even today. (This is only true for X11 programs, not GL
+ programs. Those are fine at full rez.)
+
+ This method is overridden in XScreenSaverGLView, since this kludge
+ isn't necessary for GL programs, being resolution independent by
+ nature.
*/
-- (void) createBackbuffer
+- (CGFloat) hackedContentScaleFactor
{
- CGContextRef ob = backbuffer;
- NSSize osize = backbuffer_size;
+ NSSize ssize = [[[UIScreen mainScreen] currentMode] size];
+ NSSize bsize = [self bounds].size;
- CGColorSpaceRef cs = CGColorSpaceCreateDeviceRGB();
- double s = self.contentScaleFactor;
- backbuffer_size.width = (int) (s * rot_current_size.width);
- backbuffer_size.height = (int) (s * rot_current_size.height);
- backbuffer = CGBitmapContextCreate (NULL,
- backbuffer_size.width,
- backbuffer_size.height,
- 8,
- backbuffer_size.width * 4,
- cs,
- kCGImageAlphaPremultipliedLast);
- NSAssert (backbuffer, @"unable to allocate back buffer");
- CGColorSpaceRelease (cs);
+ // Ratio of screen size in pixels to view size in points.
+ GLfloat s = ((ssize.width > ssize.height ? ssize.width : ssize.height) /
+ (bsize.width > bsize.height ? bsize.width : bsize.height));
- // Clear it.
- CGContextSetGrayFillColor (backbuffer, 0, 1);
- CGRect r = CGRectZero;
- r.size = backbuffer_size;
- CGContextFillRect (backbuffer, r);
+ if (ssize.width >= 1024 && ssize.height >= 1024)
+ s = 1;
- if (ob) {
- // Restore old bits, as much as possible, to the X11 upper left origin.
- NSRect rect;
- rect.origin.x = 0;
- rect.origin.y = (backbuffer_size.height - osize.height);
- rect.size = osize;
- CGImageRef img = CGBitmapContextCreateImage (ob);
- CGContextDrawImage (backbuffer, rect, img);
- CGImageRelease (img);
- CGContextRelease (ob);
- }
+ return s;
}
+
static GLfloat _global_rot_current_angle_kludge;
double current_device_rotation (void)
double duration = 1/6.0;
rotation_ratio = 1 - ((rot_start_time + duration - now) / duration);
- if (rotation_ratio > 1) { // Done animating.
+ if (rotation_ratio > 1 || ignore_rotation_p) { // Done animating.
orientation = new_orientation;
rot_current_angle = angle_to;
rot_current_size = rot_to;
rotation_ratio = -1;
+# if TARGET_IPHONE_SIMULATOR
+ NSLog (@"rotation ended: %s %d, %d x %d",
+ orientname(orientation), (int) rot_current_angle,
+ (int) rot_current_size.width, (int) rot_current_size.height);
+# endif
+
// Check orientation again in case we rotated again while rotating:
// this is a no-op if nothing has changed.
[self didRotate:nil];
# undef CLAMP180
- double s = self.contentScaleFactor;
- if (((int) backbuffer_size.width != (int) (s * rot_current_size.width) ||
- (int) backbuffer_size.height != (int) (s * rot_current_size.height))
-/* && rotation_ratio == -1*/)
- [self setFrame:[self frame]];
+ CGSize rotsize = ((ignore_rotation_p || ![self reshapeRotatedWindow])
+ ? initial_bounds
+ : rot_current_size);
+ if ((int) backbuffer_size.width != (int) rotsize.width ||
+ (int) backbuffer_size.height != (int) rotsize.height)
+ [self resize_x11];
+}
+
+
+- (void)alertView:(UIAlertView *)av clickedButtonAtIndex:(NSInteger)i
+{
+ if (i == 0) exit (-1); // Cancel
+ [self stopAndClose:NO]; // Keep going
+}
+
+- (void) handleException: (NSException *)e
+{
+ NSLog (@"Caught exception: %@", e);
+ [[[UIAlertView alloc] initWithTitle:
+ [NSString stringWithFormat: @"%s crashed!",
+ xsft->progclass]
+ message:
+ [NSString stringWithFormat:
+ @"The error message was:"
+ "\n\n%@\n\n"
+ "If it keeps crashing, try "
+ "resetting its options.",
+ e]
+ delegate: self
+ cancelButtonTitle: @"Exit"
+ otherButtonTitles: @"Keep going", nil]
+ show];
+ [self stopAnimation];
}
#endif // USE_IPHONE
+#ifdef USE_BACKBUFFER
+
+/* Create a bitmap context into which we render everything.
+ If the desired size has changed, re-created it.
+ new_size is in rotated pixels, not points: the same size
+ and shape as the X11 window as seen by the hacks.
+ */
+- (void) createBackbuffer:(CGSize)new_size
+{
+ // Colorspaces and CGContexts only happen with non-GL hacks.
+ if (colorspace)
+ CGColorSpaceRelease (colorspace);
+# ifdef BACKBUFFER_CGCONTEXT
+ if (window_ctx)
+ CGContextRelease (window_ctx);
+# endif
+
+ NSWindow *window = [self window];
+
+ if (window && xdpy) {
+ [self lockFocus];
+
+# if defined(BACKBUFFER_CGCONTEXT)
+ // TODO: This was borrowed from jwxyz_window_resized, and should
+ // probably be refactored.
+
+ // Figure out which screen the window is currently on.
+ CGDirectDisplayID cgdpy = 0;
+
+ {
+// int wx, wy;
+// TODO: XTranslateCoordinates is returning (0,1200) on my system.
+// Is this right?
+// In any case, those weren't valid coordinates for CGGetDisplaysWithPoint.
+// XTranslateCoordinates (xdpy, xwindow, NULL, 0, 0, &wx, &wy, NULL);
+// p.x = wx;
+// p.y = wy;
+
+ NSPoint p0 = {0, 0};
+ p0 = [window convertBaseToScreen:p0];
+ CGPoint p = {p0.x, p0.y};
+ CGDisplayCount n;
+ CGGetDisplaysWithPoint (p, 1, &cgdpy, &n);
+ NSAssert (cgdpy, @"unable to find CGDisplay");
+ }
+
+ {
+ // Figure out this screen's colorspace, and use that for every CGImage.
+ //
+ CMProfileRef profile = 0;
+
+ // CMGetProfileByAVID is deprecated as of OS X 10.6, but there's no
+ // documented replacement as of OS X 10.9.
+ // http://lists.apple.com/archives/colorsync-dev/2012/Nov/msg00001.html
+ CMGetProfileByAVID ((CMDisplayIDType) cgdpy, &profile);
+ NSAssert (profile, @"unable to find colorspace profile");
+ colorspace = CGColorSpaceCreateWithPlatformColorSpace (profile);
+ NSAssert (colorspace, @"unable to find colorspace");
+ }
+# elif defined(BACKBUFFER_CALAYER)
+ // Was apparently faster until 10.9.
+ colorspace = CGColorSpaceCreateDeviceRGB ();
+# endif // BACKBUFFER_CALAYER
+
+# ifdef BACKBUFFER_CGCONTEXT
+ window_ctx = [[window graphicsContext] graphicsPort];
+ CGContextRetain (window_ctx);
+# endif // BACKBUFFER_CGCONTEXT
+
+ [self unlockFocus];
+ } else {
+# ifdef BACKBUFFER_CGCONTEXT
+ window_ctx = NULL;
+# endif // BACKBUFFER_CGCONTEXT
+ colorspace = CGColorSpaceCreateDeviceRGB();
+ }
+
+ if (backbuffer &&
+ (int)backbuffer_size.width == (int)new_size.width &&
+ (int)backbuffer_size.height == (int)new_size.height)
+ return;
+
+ CGContextRef ob = backbuffer;
+
+ CGSize osize = backbuffer_size; // pixels, not points.
+ backbuffer_size = new_size; // pixels, not points.
+
+# if TARGET_IPHONE_SIMULATOR
+ NSLog(@"backbuffer %.0fx%.0f",
+ backbuffer_size.width, backbuffer_size.height);
+# endif
+
+ backbuffer = CGBitmapContextCreate (NULL,
+ (int)backbuffer_size.width,
+ (int)backbuffer_size.height,
+ 8,
+ (int)backbuffer_size.width * 4,
+ colorspace,
+ // kCGImageAlphaPremultipliedLast
+ (kCGImageAlphaNoneSkipFirst |
+ kCGBitmapByteOrder32Host)
+ );
+ NSAssert (backbuffer, @"unable to allocate back buffer");
+
+ // Clear it.
+ CGRect r;
+ r.origin.x = r.origin.y = 0;
+ r.size = backbuffer_size;
+ CGContextSetGrayFillColor (backbuffer, 0, 1);
+ CGContextFillRect (backbuffer, r);
+
+ if (ob) {
+ // Restore old bits, as much as possible, to the X11 upper left origin.
+
+ CGRect rect; // pixels, not points
+ rect.origin.x = 0;
+ rect.origin.y = (backbuffer_size.height - osize.height);
+ rect.size = osize;
+
+ CGImageRef img = CGBitmapContextCreateImage (ob);
+ CGContextDrawImage (backbuffer, rect, img);
+ CGImageRelease (img);
+ CGContextRelease (ob);
+ }
+}
+
+#endif // USE_BACKBUFFER
+
+
+/* Inform X11 that the size of our window has changed.
+ */
+- (void) resize_x11
+{
+ if (!xwindow) return; // early
+
+ CGSize new_size; // pixels, not points
+
+# ifdef USE_BACKBUFFER
+# ifdef USE_IPHONE
+ CGSize rotsize = ((ignore_rotation_p || ![self reshapeRotatedWindow])
+ ? initial_bounds
+ : rot_current_size);
+ new_size.width = rotsize.width;
+ new_size.height = rotsize.height;
+# else // !USE_IPHONE
+ new_size = NSSizeToCGSize([self bounds].size);
+# endif // !USE_IPHONE
+
+ [self createBackbuffer:new_size];
+ jwxyz_window_resized (xdpy, xwindow, 0, 0, new_size.width, new_size.height,
+ backbuffer);
+# else // !USE_BACKBUFFER
+ new_size = [self bounds].size;
+ jwxyz_window_resized (xdpy, xwindow, 0, 0, new_size.width, new_size.height,
+ 0);
+# endif // !USE_BACKBUFFER
+
+# if TARGET_IPHONE_SIMULATOR
+ NSLog(@"reshape %.0fx%.0f", new_size.width, new_size.height);
+# endif
+
+ // Next time render_x11 is called, run the saver's reshape_cb.
+ resized_p = YES;
+}
+
+
- (void) render_x11
{
# ifdef USE_IPHONE
+ @try {
+
if (orientation == UIDeviceOrientationUnknown)
[self didRotate:nil];
[self hackRotation];
if (!initted_p) {
if (! xdpy) {
-# ifdef USE_IPHONE
+# ifdef USE_BACKBUFFER
NSAssert (backbuffer, @"no back buffer");
xdpy = jwxyz_make_display (self, backbuffer);
# else
xwindow = XRootWindow (xdpy, 0);
# ifdef USE_IPHONE
- jwxyz_window_resized (xdpy, xwindow,
- 0, 0,
- backbuffer_size.width, backbuffer_size.height,
- backbuffer);
-# else
- NSRect r = [self frame];
- jwxyz_window_resized (xdpy, xwindow,
- r.origin.x, r.origin.y,
- r.size.width, r.size.height,
- 0);
-# endif
+ /* Some X11 hacks (fluidballs) want to ignore all rotation events. */
+ ignore_rotation_p =
+ get_boolean_resource (xdpy, "ignoreRotation", "IgnoreRotation");
+# endif // USE_IPHONE
+
+ [self resize_x11];
}
if (!setup_p) {
initted_p = YES;
resized_p = NO;
NSAssert(!xdata, @"xdata already initialized");
-
+
+
# undef ya_rand_init
ya_rand_init (0);
(void *(*) (Display *, Window, void *)) xsft->init_cb;
xdata = init_cb (xdpy, xwindow, xsft->setup_arg);
+ // NSAssert(xdata, @"no xdata from init");
+ if (! xdata) abort();
if (get_boolean_resource (xdpy, "doFPS", "DoFPS")) {
fpst = fps_init (xdpy, xwindow);
if (! xsft->fps_cb) xsft->fps_cb = screenhack_do_fps;
+ } else {
+ fpst = NULL;
+ xsft->fps_cb = 0;
}
+
+ [self checkForUpdates];
}
}
- /* It turns out that [ScreenSaverView setAnimationTimeInterval] does nothing.
- This is bad, because some of the screen hacks want to delay for long
- periods (like 5 seconds or a minute!) between frames, and running them
- all at 60 FPS is no good.
-
- So, we don't use setAnimationTimeInterval, and just let the framework call
- us whenever. But, we only invoke the screen hack's "draw frame" method
- when enough time has expired.
+ /* It turns out that on some systems (possibly only 10.5 and older?)
+ [ScreenSaverView setAnimationTimeInterval] does nothing. This means
+ that we cannot rely on it.
+
+ Some of the screen hacks want to delay for long periods, and letting the
+ framework run the update function at 30 FPS when it really wanted half a
+ minute between frames would be bad. So instead, we assume that the
+ framework's animation timer might fire whenever, but we only invoke the
+ screen hack's "draw frame" method when enough time has expired.
This means two extra calls to gettimeofday() per frame. For fast-cycling
screen savers, that might actually slow them down. Oh well.
- #### Also, we do not run the draw callback faster than the system's
- animationTimeInterval, so if any savers are pickier about timing
- than that, this may slow them down too much. If that's a problem,
- then we could call draw_cb in a loop here (with usleep) until the
- next call would put us past animationTimeInterval... But a better
- approach would probably be to just change the saver to not do that.
+ A side-effect of this is that it's not possible for a saver to request
+ an animation interval that is faster than animationTimeInterval.
+
+ HOWEVER! On modern systems where setAnimationTimeInterval is *not*
+ ignored, it's important that it be faster than 30 FPS. 120 FPS is good.
+
+ An NSTimer won't fire if the timer is already running the invocation
+ function from a previous firing. So, if we use a 30 FPS
+ animationTimeInterval (33333 µs) and a screenhack takes 40000 µs for a
+ frame, there will be a 26666 µs delay until the next frame, 66666 µs
+ after the beginning of the current frame. In other words, 25 FPS
+ becomes 15 FPS.
+
+ Frame rates tend to snap to values of 30/N, where N is a positive
+ integer, i.e. 30 FPS, 15 FPS, 10, 7.5, 6. And the 'snapped' frame rate
+ is rounded down from what it would normally be.
+
+ So if we set animationTimeInterval to 1/120 instead of 1/30, frame rates
+ become values of 60/N, 120/N, or 240/N, with coarser or finer frame rate
+ steps for higher or lower animation time intervals respectively.
*/
struct timeval tv;
gettimeofday (&tv, 0);
// Xlib drawing takes place under the animation timer.
[self resizeContext];
NSRect r;
-# ifndef USE_IPHONE
- r = [self frame];
-# else // USE_IPHONE
+# ifndef USE_BACKBUFFER
+ r = [self bounds];
+# else // USE_BACKBUFFER
r.origin.x = 0;
r.origin.y = 0;
r.size.width = backbuffer_size.width;
r.size.height = backbuffer_size.height;
-# endif // USE_IPHONE
+# endif // USE_BACKBUFFER
xsft->reshape_cb (xdpy, xwindow, xdata, r.size.width, r.size.height);
resized_p = NO;
}
-
// Run any XtAppAddInput callbacks now.
// (Note that XtAppAddTimeOut callbacks have already been run by
// the Cocoa event loop.)
# ifndef USE_IPHONE
NSDisableScreenUpdates();
# endif
+ // NSAssert(xdata, @"no xdata when drawing");
+ if (! xdata) abort();
unsigned long delay = xsft->draw_cb (xdpy, xwindow, xdata);
if (fpst) xsft->fps_cb (xdpy, xwindow, fpst, xdata);
# ifndef USE_IPHONE
}
}
# endif // DO_GC_HACKERY
+
+# ifdef USE_IPHONE
+ }
+ @catch (NSException *e) {
+ [self handleException: e];
+ }
+# endif // USE_IPHONE
}
-/* On MacOS: drawRect does nothing, and animateOneFrame renders.
- On iOS GL: drawRect does nothing, and animateOneFrame renders.
- On iOS X11: drawRect renders, and animateOneFrame marks the view dirty.
+/* drawRect always does nothing, and animateOneFrame renders bits to the
+ screen. This is (now) true of both X11 and GL on both MacOS and iOS.
*/
-#ifndef USE_IPHONE
- (void)drawRect:(NSRect)rect
{
[super drawRect:rect]; // early: black.
}
+
+#ifndef USE_BACKBUFFER
+
- (void) animateOneFrame
{
[self render_x11];
+ jwxyz_flush_context(xdpy);
}
-#else // USE_IPHONE
+#else // USE_BACKBUFFER
-- (void)drawRect:(NSRect)rect
+- (void) animateOneFrame
{
// Render X11 into the backing store bitmap...
NSAssert (backbuffer, @"no back buffer");
+
+# ifdef USE_IPHONE
UIGraphicsPushContext (backbuffer);
- [self render_x11];
- UIGraphicsPopContext();
+# endif
- // Then copy that bitmap to the screen.
+ [self render_x11];
- CGContextRef cgc = UIGraphicsGetCurrentContext();
+# ifdef USE_IPHONE
+ UIGraphicsPopContext();
+# endif
- // Mask it to only update the parts that are exposed.
-// CGContextClipToRect (cgc, rect);
+# ifdef USE_IPHONE
+ // The rotation origin for layer.affineTransform is in the center already.
+ CGAffineTransform t = ignore_rotation_p ?
+ CGAffineTransformIdentity :
+ CGAffineTransformMakeRotation (rot_current_angle / (180.0 / M_PI));
+
+ // Ratio of backbuffer size in pixels to layer size in points.
+ CGSize ssize = backbuffer_size;
+ CGSize bsize = [self bounds].size;
+ GLfloat s = ((ssize.width > ssize.height ? ssize.width : ssize.height) /
+ (bsize.width > bsize.height ? bsize.width : bsize.height));
+
+ self.layer.contentsScale = s;
+ self.layer.affineTransform = t;
+
+ /* Setting the layer's bounds also sets the view's bounds.
+ The view's bounds must be in points, not pixels, and it
+ must be rotated to the current orientation.
+ */
+ CGRect bounds;
+ bounds.origin.x = 0;
+ bounds.origin.y = 0;
+ bounds.size.width = ssize.width / s;
+ bounds.size.height = ssize.height / s;
+ self.layer.bounds = bounds;
- double s = self.contentScaleFactor;
- CGRect frame = [self frame];
+# endif // USE_IPHONE
+
+# if defined(BACKBUFFER_CALAYER)
+ [self.layer setNeedsDisplay];
+# elif defined(BACKBUFFER_CGCONTEXT)
+ size_t
+ w = CGBitmapContextGetWidth (backbuffer),
+ h = CGBitmapContextGetHeight (backbuffer);
+
+ size_t bpl = CGBitmapContextGetBytesPerRow (backbuffer);
+ CGDataProviderRef prov = CGDataProviderCreateWithData (NULL,
+ CGBitmapContextGetData(backbuffer),
+ bpl * h,
+ NULL);
+
+
+ CGImageRef img = CGImageCreate (w, h,
+ 8, 32,
+ CGBitmapContextGetBytesPerRow(backbuffer),
+ colorspace,
+ CGBitmapContextGetBitmapInfo(backbuffer),
+ prov, NULL, NO,
+ kCGRenderingIntentDefault);
+
+ CGDataProviderRelease (prov);
+
+ CGRect rect;
+ rect.origin.x = 0;
+ rect.origin.y = 0;
+ rect.size = backbuffer_size;
+ CGContextDrawImage (window_ctx, rect, img);
+
+ CGImageRelease (img);
- NSRect target;
- target.size.width = backbuffer_size.width;
- target.size.height = backbuffer_size.height;
- target.origin.x = (s * frame.size.width - target.size.width) / 2;
- target.origin.y = (s * frame.size.height - target.size.height) / 2;
+ CGContextFlush (window_ctx);
+# endif // BACKBUFFER_CGCONTEXT
+}
- target.origin.x /= s;
- target.origin.y /= s;
- target.size.width /= s;
- target.size.height /= s;
+# ifdef BACKBUFFER_CALAYER
- CGAffineTransform t = CGAffineTransformIdentity;
+- (void) drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx
+{
+ // This "isn't safe" if NULL is passed to CGBitmapCreateContext before iOS 4.
+ char *dest_data = (char *)CGBitmapContextGetData (ctx);
+
+ // The CGContext here is normally upside-down on iOS.
+ if (dest_data &&
+ CGBitmapContextGetBitmapInfo (ctx) ==
+ (kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Host)
+# ifdef USE_IPHONE
+ && CGContextGetCTM (ctx).d < 0
+# endif // USE_IPHONE
+ )
+ {
+ size_t dest_height = CGBitmapContextGetHeight (ctx);
+ size_t dest_bpr = CGBitmapContextGetBytesPerRow (ctx);
+ size_t src_height = CGBitmapContextGetHeight (backbuffer);
+ size_t src_bpr = CGBitmapContextGetBytesPerRow (backbuffer);
+ char *src_data = (char *)CGBitmapContextGetData (backbuffer);
- // Rotate around center
- float cx = frame.size.width / 2;
- float cy = frame.size.height / 2;
- t = CGAffineTransformTranslate (t, cx, cy);
- t = CGAffineTransformRotate (t, -rot_current_angle / (180.0 / M_PI));
- t = CGAffineTransformTranslate (t, -cx, -cy);
+ size_t height = src_height < dest_height ? src_height : dest_height;
+
+ if (src_bpr == dest_bpr) {
+ // iPad 1: 4.0 ms, iPad 2: 6.7 ms
+ memcpy (dest_data, src_data, src_bpr * height);
+ } else {
+ // iPad 1: 4.6 ms, iPad 2: 7.2 ms
+ size_t bpr = src_bpr < dest_bpr ? src_bpr : dest_bpr;
+ while (height) {
+ memcpy (dest_data, src_data, bpr);
+ --height;
+ src_data += src_bpr;
+ dest_data += dest_bpr;
+ }
+ }
+ } else {
- // Flip Y axis
- t = CGAffineTransformConcat (t,
- CGAffineTransformMake ( 1, 0, 0,
- -1, 0, frame.size.height));
+ // iPad 1: 9.6 ms, iPad 2: 12.1 ms
- // Clear background (visible in corners of screen during rotation)
- if (rotation_ratio != -1) {
- CGContextSetGrayFillColor (cgc, 0, 1);
- CGContextFillRect (cgc, frame);
+# ifdef USE_IPHONE
+ CGContextScaleCTM (ctx, 1, -1);
+ CGFloat s = [self contentScaleFactor];
+ CGFloat hs = [self hackedContentScaleFactor];
+ CGContextTranslateCTM (ctx, 0, -backbuffer_size.height * hs / s);
+# endif // USE_IPHONE
+
+ CGImageRef img = CGBitmapContextCreateImage (backbuffer);
+ CGContextDrawImage (ctx, self.layer.bounds, img);
+ CGImageRelease (img);
}
-
- CGContextConcatCTM (cgc, t);
-
- // Copy the backbuffer to the screen.
- // Note that CGContextDrawImage measures in "points", not "pixels".
- CGImageRef img = CGBitmapContextCreateImage (backbuffer);
- CGContextDrawImage (cgc, target, img);
- CGImageRelease (img);
-}
-
-- (void) animateOneFrame
-{
- [self setNeedsDisplay];
}
+# endif // BACKBUFFER_CALAYER
-#endif // !USE_IPHONE
+#endif // USE_BACKBUFFER
{
[super setFrame:newRect];
-# ifdef USE_IPHONE
- [self createBackbuffer];
-# endif
-
- resized_p = YES; // The reshape_cb runs in render_x11
- if (xwindow) { // inform Xlib that the window has changed now.
-# ifdef USE_IPHONE
- NSAssert (backbuffer, @"no back buffer");
- // The backbuffer is the rotated size, and so is the xwindow.
- jwxyz_window_resized (xdpy, xwindow,
- 0, 0,
- backbuffer_size.width, backbuffer_size.height,
- backbuffer);
-# else
- jwxyz_window_resized (xdpy, xwindow,
- newRect.origin.x, newRect.origin.y,
- newRect.size.width, newRect.size.height,
- 0);
-# endif
- }
+ if (xwindow) // inform Xlib that the window has changed now.
+ [self resize_x11];
}
- (void) setFrameSize:(NSSize) newSize
{
[super setFrameSize:newSize];
- resized_p = YES;
if (xwindow)
- jwxyz_window_resized (xdpy, xwindow,
- [self frame].origin.x,
- [self frame].origin.y,
- newSize.width, newSize.height,
- 0); // backbuffer only on iPhone
+ [self resize_x11];
}
# endif // !USE_IPHONE
return YES;
}
++ (NSString *) decompressXML: (NSData *)data
+{
+ if (! data) return 0;
+ BOOL compressed_p = !!strncmp ((const char *) data.bytes, "<?xml", 5);
+
+ // If it's not already XML, decompress it.
+ NSAssert (compressed_p, @"xml isn't compressed");
+ if (compressed_p) {
+ NSMutableData *data2 = 0;
+ int ret = -1;
+ z_stream zs;
+ memset (&zs, 0, sizeof(zs));
+ ret = inflateInit2 (&zs, 16 + MAX_WBITS);
+ if (ret == Z_OK) {
+ UInt32 usize = * (UInt32 *) (data.bytes + data.length - 4);
+ data2 = [NSMutableData dataWithLength: usize];
+ zs.next_in = (Bytef *) data.bytes;
+ zs.avail_in = (uint) data.length;
+ zs.next_out = (Bytef *) data2.bytes;
+ zs.avail_out = (uint) data2.length;
+ ret = inflate (&zs, Z_FINISH);
+ inflateEnd (&zs);
+ }
+ if (ret == Z_OK || ret == Z_STREAM_END)
+ data = data2;
+ else
+ NSAssert2 (0, @"gunzip error: %d: %s",
+ ret, (zs.msg ? zs.msg : "<null>"));
+ }
+
+ return [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+}
+
+
#ifndef USE_IPHONE
- (NSWindow *) configureSheet
#else
{
NSBundle *bundle = [NSBundle bundleForClass:[self class]];
NSString *file = [NSString stringWithCString:xsft->progclass
- encoding:NSUTF8StringEncoding];
+ encoding:NSISOLatin1StringEncoding];
file = [file lowercaseString];
NSString *path = [bundle pathForResource:file ofType:@"xml"];
if (!path) {
NSWindow *sheet;
# endif // !USE_IPHONE
+ NSData *xmld = [NSData dataWithContentsOfFile:path];
+ NSString *xml = [[self class] decompressXML: xmld];
sheet = [[XScreenSaverConfigSheet alloc]
- initWithXMLFile:path
- options:xsft->options
- controller:[prefsReader userDefaultsController]
- defaults:[prefsReader defaultOptions]];
+ initWithXML:[xml dataUsingEncoding:NSUTF8StringEncoding]
+ options:xsft->options
+ controller:[prefsReader userDefaultsController]
+ globalController:[prefsReader globalDefaultsController]
+ defaults:[prefsReader defaultOptions]];
// #### am I expected to retain this, or not? wtf.
// I thought not, but if I don't do this, we (sometimes) crash.
- [sheet retain];
+ // #### Analyze says "potential leak of an object stored into sheet"
+ // [sheet retain];
return sheet;
}
/* Announce our willingness to accept keyboard input.
-*/
+ */
- (BOOL)acceptsFirstResponder
{
return YES;
}
+- (void) beep
+{
+# ifndef USE_IPHONE
+ NSBeep();
+# else // USE_IPHONE
+
+ // There's no way to play a standard system alert sound!
+ // We'd have to include our own WAV for that.
+ //
+ // Or we could vibrate:
+ // #import <AudioToolbox/AudioToolbox.h>
+ // AudioServicesPlaySystemSound (kSystemSoundID_Vibrate);
+ //
+ // Instead, just flash the screen white, then fade.
+ //
+ UIView *v = [[UIView alloc] initWithFrame: [self frame]];
+ [v setBackgroundColor: [UIColor whiteColor]];
+ [[self window] addSubview:v];
+ [UIView animateWithDuration: 0.1
+ animations:^{ [v setAlpha: 0.0]; }
+ completion:^(BOOL finished) { [v removeFromSuperview]; } ];
+
+# endif // USE_IPHONE
+}
+
+
+/* Send an XEvent to the hack. Returns YES if it was handled.
+ */
+- (BOOL) sendEvent: (XEvent *) e
+{
+ if (!initted_p || ![self isAnimating]) // no event handling unless running.
+ return NO;
+
+ [self lockFocus];
+ [self prepareContext];
+ BOOL result = xsft->event_cb (xdpy, xwindow, xdata, e);
+ [self unlockFocus];
+ return result;
+}
+
+
#ifndef USE_IPHONE
/* Convert an NSEvent into an XEvent, and pass it along.
Returns YES if it was handled.
*/
-- (BOOL) doEvent: (NSEvent *) e
+- (BOOL) convertEvent: (NSEvent *) e
type: (int) type
{
- if (![self isPreview] || // no event handling if actually screen-saving!
- ![self isAnimating] ||
- !initted_p)
- return NO;
-
XEvent xe;
memset (&xe, 0, sizeof(xe));
NSPoint p = [[[e window] contentView] convertPoint:[e locationInWindow]
toView:self];
# ifdef USE_IPHONE
- double s = self.contentScaleFactor;
+ double s = [self hackedContentScaleFactor];
# else
int s = 1;
# endif
int x = s * p.x;
- int y = s * ([self frame].size.height - p.y);
+ int y = s * ([self bounds].size.height - p.y);
xe.xany.type = type;
switch (type) {
}
}
+ if (! k) return YES; // E.g., "KeyRelease XK_Shift_L"
+
xe.xkey.keycode = k;
xe.xkey.state = state;
break;
}
default:
- abort();
+ NSAssert1 (0, @"unknown X11 event type: %d", type);
+ break;
}
- [self lockFocus];
- [self prepareContext];
- BOOL result = xsft->event_cb (xdpy, xwindow, xdata, &xe);
- [self unlockFocus];
- return result;
+ return [self sendEvent: &xe];
}
- (void) mouseDown: (NSEvent *) e
{
- if (! [self doEvent:e type:ButtonPress])
+ if (! [self convertEvent:e type:ButtonPress])
[super mouseDown:e];
}
- (void) mouseUp: (NSEvent *) e
{
- if (! [self doEvent:e type:ButtonRelease])
+ if (! [self convertEvent:e type:ButtonRelease])
[super mouseUp:e];
}
- (void) otherMouseDown: (NSEvent *) e
{
- if (! [self doEvent:e type:ButtonPress])
+ if (! [self convertEvent:e type:ButtonPress])
[super otherMouseDown:e];
}
- (void) otherMouseUp: (NSEvent *) e
{
- if (! [self doEvent:e type:ButtonRelease])
+ if (! [self convertEvent:e type:ButtonRelease])
[super otherMouseUp:e];
}
- (void) mouseMoved: (NSEvent *) e
{
- if (! [self doEvent:e type:MotionNotify])
+ if (! [self convertEvent:e type:MotionNotify])
[super mouseMoved:e];
}
- (void) mouseDragged: (NSEvent *) e
{
- if (! [self doEvent:e type:MotionNotify])
+ if (! [self convertEvent:e type:MotionNotify])
[super mouseDragged:e];
}
- (void) otherMouseDragged: (NSEvent *) e
{
- if (! [self doEvent:e type:MotionNotify])
+ if (! [self convertEvent:e type:MotionNotify])
[super otherMouseDragged:e];
}
- (void) scrollWheel: (NSEvent *) e
{
- if (! [self doEvent:e type:ButtonPress])
+ if (! [self convertEvent:e type:ButtonPress])
[super scrollWheel:e];
}
- (void) keyDown: (NSEvent *) e
{
- if (! [self doEvent:e type:KeyPress])
+ if (! [self convertEvent:e type:KeyPress])
[super keyDown:e];
}
- (void) keyUp: (NSEvent *) e
{
- if (! [self doEvent:e type:KeyRelease])
+ if (! [self convertEvent:e type:KeyRelease])
[super keyUp:e];
}
- (void) flagsChanged: (NSEvent *) e
{
- if (! [self doEvent:e type:KeyPress])
+ if (! [self convertEvent:e type:KeyPress])
[super flagsChanged:e];
}
#else // USE_IPHONE
+- (void) stopAndClose:(Bool)relaunch_p
+{
+ if ([self isAnimating])
+ [self stopAnimation];
+
+ /* Need to make the SaverListController be the firstResponder again
+ so that it can continue to receive its own shake events. I
+ suppose that this abstraction-breakage means that I'm adding
+ XScreenSaverView to the UINavigationController wrong...
+ */
+// UIViewController *v = [[self window] rootViewController];
+// if ([v isKindOfClass: [UINavigationController class]]) {
+// UINavigationController *n = (UINavigationController *) v;
+// [[n topViewController] becomeFirstResponder];
+// }
+ [self resignFirstResponder];
+
+ // Find SaverRunner.window (as opposed to SaverRunner.saverWindow)
+ UIWindow *listWindow = 0;
+ for (UIWindow *w in [[UIApplication sharedApplication] windows]) {
+ if (w != [self window]) {
+ listWindow = w;
+ break;
+ }
+ }
+
+ UIView *fader = [self superview]; // the "backgroundView" view is our parent
+
+ if (relaunch_p) { // Fake a shake on the SaverListController.
+ UIViewController *v = [listWindow rootViewController];
+ if ([v isKindOfClass: [UINavigationController class]]) {
+# if TARGET_IPHONE_SIMULATOR
+ NSLog (@"simulating shake on saver list");
+# endif
+ UINavigationController *n = (UINavigationController *) v;
+ [[n topViewController] motionEnded: UIEventSubtypeMotionShake
+ withEvent: nil];
+ }
+ } else { // Not launching another, animate our return to the list.
+# if TARGET_IPHONE_SIMULATOR
+ NSLog (@"fading back to saver list");
+# endif
+ UIWindow *saverWindow = [self window]; // not SaverRunner.window
+ [listWindow setHidden:NO];
+ [UIView animateWithDuration: 0.5
+ animations:^{ fader.alpha = 0.0; }
+ completion:^(BOOL finished) {
+ [fader removeFromSuperview];
+ fader.alpha = 1.0;
+ [saverWindow setHidden:YES];
+ [listWindow makeKeyAndVisible];
+ [[[listWindow rootViewController] view] becomeFirstResponder];
+ }];
+ }
+}
+
+
+/* Whether the shape of the X11 Window should be changed to HxW when the
+ device is in a landscape orientation. X11 hacks want this, but OpenGL
+ hacks do not.
+ */
+- (BOOL)reshapeRotatedWindow
+{
+ return YES;
+}
+
+
/* Called after the device's orientation has changed.
+
+ Rotation is complicated: the UI, X11 and OpenGL work in 3 different ways.
- Note: we could include a subclass of UIViewController which
- contains a shouldAutorotateToInterfaceOrientation method that
- returns YES, in which case Core Animation would auto-rotate our
- View for us in response to rotation events... but, that interacts
- badly with the EAGLContext -- if you introduce Core Animation into
- the path, the OpenGL pipeline probably falls back on software
- rendering and performance goes to hell. Also, the scaling and
- rotation that Core Animation does interacts incorrectly with the GL
- context anyway.
-
- So, we have to hack the rotation animation manually, in the GL world.
-
- Possibly XScreenSaverView should use Core Animation, and
- XScreenSaverGLView should override that.
-*/
+ The UI (list of savers, preferences panels) is rotated by the system,
+ because its UIWindow is under a UINavigationController that does
+ automatic rotation, using Core Animation.
+
+ The savers are under a different UIWindow and a UINavigationController
+ that does not do automatic rotation.
+
+ We have to do it this way for OpenGL savers because using Core Animation
+ on an EAGLContext causes the OpenGL pipeline to fall back on software
+ rendering and performance goes to hell.
+
+ For X11-only savers, we could just use Core Animation and let the system
+ handle it, but (maybe) it's simpler to do it the same way for X11 and GL.
+
+ During and after rotation, the size/shape of the X11 window changes,
+ and ConfigureNotify events are generated.
+
+ X11 code (jwxyz) continues to draw into the (reshaped) backbuffer, which
+ rotated at the last minute via a CGAffineTransformMakeRotation when it is
+ copied to the display hardware.
+
+ GL code always recieves a portrait-oriented X11 Window whose size never
+ changes. The GL COLOR_BUFFER is displayed on the hardware directly and
+ unrotated, so the GL hacks themselves are responsible for rotating the
+ GL scene to match current_device_rotation().
+
+ Touch events are converted to mouse clicks, and those XEvent coordinates
+ are reported in the coordinate system currently in use by the X11 window.
+ Again, GL must convert those.
+ */
- (void)didRotate:(NSNotification *)notification
{
UIDeviceOrientation current = [[UIDevice currentDevice] orientation];
case UIInterfaceOrientationPortraitUpsideDown:
current = UIDeviceOrientationPortraitUpsideDown;
break;
- case UIInterfaceOrientationLandscapeLeft: // It's opposite day
+ /* It's opposite day, "because rotating the device to the left requires
+ rotating the content to the right" */
+ case UIInterfaceOrientationLandscapeLeft:
current = UIDeviceOrientationLandscapeRight;
break;
case UIInterfaceOrientationLandscapeRight:
if (rotation_ratio >= 0) return; // in the midst of rotation animation
if (orientation == current) return; // no change
+ // When transitioning to FaceUp or FaceDown, pretend there was no change.
+ if (current == UIDeviceOrientationFaceUp ||
+ current == UIDeviceOrientationFaceDown)
+ return;
+
new_orientation = current; // current animation target
rotation_ratio = 0; // start animating
rot_start_time = double_time();
switch (orientation) {
- case UIInterfaceOrientationLandscapeRight: angle_from = 90; break;
- case UIInterfaceOrientationLandscapeLeft: angle_from = 270; break;
- case UIInterfaceOrientationPortraitUpsideDown: angle_from = 180; break;
- default: angle_from = 0; break;
+ case UIDeviceOrientationLandscapeLeft: angle_from = 90; break;
+ case UIDeviceOrientationLandscapeRight: angle_from = 270; break;
+ case UIDeviceOrientationPortraitUpsideDown: angle_from = 180; break;
+ default: angle_from = 0; break;
}
switch (new_orientation) {
- case UIInterfaceOrientationLandscapeRight: angle_to = 90; break;
- case UIInterfaceOrientationLandscapeLeft: angle_to = 270; break;
- case UIInterfaceOrientationPortraitUpsideDown: angle_to = 180; break;
- default: angle_to = 0; break;
+ case UIDeviceOrientationLandscapeLeft: angle_to = 90; break;
+ case UIDeviceOrientationLandscapeRight: angle_to = 270; break;
+ case UIDeviceOrientationPortraitUpsideDown: angle_to = 180; break;
+ default: angle_to = 0; break;
}
- NSRect ff = [self frame];
-
switch (orientation) {
- case UIInterfaceOrientationLandscapeLeft: // from landscape
- case UIInterfaceOrientationLandscapeRight:
- rot_from.width = ff.size.height;
- rot_from.height = ff.size.width;
+ case UIDeviceOrientationLandscapeRight: // from landscape
+ case UIDeviceOrientationLandscapeLeft:
+ rot_from.width = initial_bounds.height;
+ rot_from.height = initial_bounds.width;
break;
default: // from portrait
- rot_from.width = ff.size.width;
- rot_from.height = ff.size.height;
+ rot_from.width = initial_bounds.width;
+ rot_from.height = initial_bounds.height;
break;
}
switch (new_orientation) {
- case UIInterfaceOrientationLandscapeLeft: // to landscape
- case UIInterfaceOrientationLandscapeRight:
- rot_to.width = ff.size.height;
- rot_to.height = ff.size.width;
+ case UIDeviceOrientationLandscapeRight: // to landscape
+ case UIDeviceOrientationLandscapeLeft:
+ rot_to.width = initial_bounds.height;
+ rot_to.height = initial_bounds.width;
break;
default: // to portrait
- rot_to.width = ff.size.width;
- rot_to.height = ff.size.height;
+ rot_to.width = initial_bounds.width;
+ rot_to.height = initial_bounds.height;
break;
}
+# if TARGET_IPHONE_SIMULATOR
+ NSLog (@"rotation begun: %s %d -> %s %d; %d x %d",
+ orientname(orientation), (int) rot_current_angle,
+ orientname(new_orientation), (int) angle_to,
+ (int) rot_current_size.width, (int) rot_current_size.height);
+# endif
+
if (! initted_p) {
// If we've done a rotation but the saver hasn't been initialized yet,
// don't bother going through an X11 resize, but just do it now.
}
-/* In the simulator, multi-touch sequences look like this:
+/* We distinguish between taps and drags.
- touchesBegan [touchA, touchB]
- touchesEnd [touchA, touchB]
+ - Drags/pans (down, motion, up) are sent to the saver to handle.
+ - Single-taps exit the saver.
+ - Double-taps are sent to the saver as a "Space" keypress.
+ - Swipes (really, two-finger drags/pans) send Up/Down/Left/RightArrow keys.
- But on real devices, sometimes you get that, but sometimes you get:
+ This means a saver cannot respond to a single-tap. Only a few try to.
+ */
- touchesBegan [touchA, touchB]
- touchesEnd [touchB]
- touchesEnd [touchA]
+- (void)initGestures
+{
+ UITapGestureRecognizer *dtap = [[UITapGestureRecognizer alloc]
+ initWithTarget:self
+ action:@selector(handleDoubleTap)];
+ dtap.numberOfTapsRequired = 2;
+ dtap.numberOfTouchesRequired = 1;
+
+ UITapGestureRecognizer *stap = [[UITapGestureRecognizer alloc]
+ initWithTarget:self
+ action:@selector(handleTap)];
+ stap.numberOfTapsRequired = 1;
+ stap.numberOfTouchesRequired = 1;
+
+ UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc]
+ initWithTarget:self
+ action:@selector(handlePan:)];
+ pan.maximumNumberOfTouches = 1;
+ pan.minimumNumberOfTouches = 1;
+
+ // I couldn't get Swipe to work, but using a second Pan recognizer works.
+ UIPanGestureRecognizer *pan2 = [[UIPanGestureRecognizer alloc]
+ initWithTarget:self
+ action:@selector(handlePan2:)];
+ pan2.maximumNumberOfTouches = 2;
+ pan2.minimumNumberOfTouches = 2;
+
+ // Also handle long-touch, and treat that the same as Pan.
+ // Without this, panning doesn't start until there's motion, so the trick
+ // of holding down your finger to freeze the scene doesn't work.
+ //
+ UILongPressGestureRecognizer *hold = [[UILongPressGestureRecognizer alloc]
+ initWithTarget:self
+ action:@selector(handleLongPress:)];
+ hold.numberOfTapsRequired = 0;
+ hold.numberOfTouchesRequired = 1;
+ hold.minimumPressDuration = 0.25; /* 1/4th second */
+
+ [stap requireGestureRecognizerToFail: dtap];
+ [stap requireGestureRecognizerToFail: hold];
+ [dtap requireGestureRecognizerToFail: hold];
+ [pan requireGestureRecognizerToFail: hold];
- Or even
+ [self setMultipleTouchEnabled:YES];
- touchesBegan [touchA]
- touchesBegan [touchB]
- touchesEnd [touchA]
- touchesEnd [touchB]
+ [self addGestureRecognizer: dtap];
+ [self addGestureRecognizer: stap];
+ [self addGestureRecognizer: pan];
+ [self addGestureRecognizer: pan2];
+ [self addGestureRecognizer: hold];
+
+ [dtap release];
+ [stap release];
+ [pan release];
+ [pan2 release];
+ [hold release];
+}
- So the only way to properly detect a "pinch" gesture is to remember
- the start-point of each touch as it comes in; and the end-point of
- each touch as those come in; and only process the gesture once the
- number of touchEnds matches the number of touchBegins.
- */
-static void
-rotate_mouse (int *x, int *y, int w, int h, int rot)
-{
- int ox = *x, oy = *y;
- if (rot > 45 && rot < 135) { *x = oy; *y = w-ox; }
- else if (rot < -45 && rot > -135) { *x = h-oy; *y = ox; }
- else if (rot > 135 || rot < -135) { *x = w-ox; *y = h-oy; }
-}
-
-
-- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
-{
- if (xsft->event_cb && xwindow) {
- double s = self.contentScaleFactor;
- XEvent xe;
- memset (&xe, 0, sizeof(xe));
- int i = 0;
- int w = s * [self frame].size.width;
- int h = s * [self frame].size.height;
- for (UITouch *touch in touches) {
- CGPoint p = [touch locationInView:self];
- xe.xany.type = ButtonPress;
- xe.xbutton.button = i + 1;
- xe.xbutton.button = i + 1;
- xe.xbutton.x = s * p.x;
- xe.xbutton.y = s * p.y;
- rotate_mouse (&xe.xbutton.x, &xe.xbutton.y, w, h, rot_current_angle);
- jwxyz_mouse_moved (xdpy, xwindow, xe.xbutton.x, xe.xbutton.y);
- xsft->event_cb (xdpy, xwindow, xdata, &xe);
- i++;
+/* Given a mouse (touch) coordinate in unrotated, unscaled view coordinates,
+ convert it to what X11 and OpenGL expect.
+ */
+- (void) convertMouse:(int)rot x:(int*)x y:(int *)y
+{
+ int w = [self frame].size.width;
+ int h = [self frame].size.height;
+ int xx = *x, yy = *y;
+ int swap;
+
+ if (ignore_rotation_p) {
+ // We need to rotate the coordinates to match the unrotated X11 window.
+ switch (orientation) {
+ case UIDeviceOrientationLandscapeRight:
+ swap = xx; xx = h-yy; yy = swap;
+ break;
+ case UIDeviceOrientationLandscapeLeft:
+ swap = xx; xx = yy; yy = w-swap;
+ break;
+ case UIDeviceOrientationPortraitUpsideDown:
+ xx = w-xx; yy = h-yy;
+ default:
+ break;
}
}
+
+ double s = [self contentScaleFactor];
+ *x = xx * s;
+ *y = yy * s;
+
+# if TARGET_IPHONE_SIMULATOR
+ NSLog (@"touch %4d, %-4d in %4d x %-4d %d %d\n",
+ *x, *y, (int)(w*s), (int)(h*s),
+ ignore_rotation_p, [self reshapeRotatedWindow]);
+# endif
}
-- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
+/* Single click exits saver.
+ */
+- (void) handleTap
{
+ [self stopAndClose:NO];
+}
- // Double-tap means "exit" and return to selection menu.
- //
- for (UITouch *touch in touches) {
- if ([touch tapCount] >= 2) {
- if ([self isAnimating])
- [self stopAnimation];
- [self removeFromSuperview];
- return;
- }
- }
- if (xsft->event_cb && xwindow) {
- double s = self.contentScaleFactor;
- XEvent xe;
- memset (&xe, 0, sizeof(xe));
- int i = 0;
- int w = s * [self frame].size.width;
- int h = s * [self frame].size.height;
- for (UITouch *touch in touches) {
- CGPoint p = [touch locationInView:self];
- xe.xany.type = ButtonRelease;
- xe.xbutton.button = i + 1;
- xe.xbutton.x = s * p.x;
- xe.xbutton.y = s * p.y;
- rotate_mouse (&xe.xbutton.x, &xe.xbutton.y, w, h, rot_current_angle);
- jwxyz_mouse_moved (xdpy, xwindow, xe.xbutton.x, xe.xbutton.y);
- xsft->event_cb (xdpy, xwindow, xdata, &xe);
- i++;
- }
- }
+/* Double click sends Space KeyPress.
+ */
+- (void) handleDoubleTap
+{
+ if (!xsft->event_cb || !xwindow) return;
+
+ XEvent xe;
+ memset (&xe, 0, sizeof(xe));
+ xe.xkey.keycode = ' ';
+ xe.xany.type = KeyPress;
+ BOOL ok1 = [self sendEvent: &xe];
+ xe.xany.type = KeyRelease;
+ BOOL ok2 = [self sendEvent: &xe];
+ if (!(ok1 || ok2))
+ [self beep];
}
-- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
-{
- if (xsft->event_cb && xwindow) {
- double s = self.contentScaleFactor;
- XEvent xe;
- memset (&xe, 0, sizeof(xe));
- int i = 0;
- int w = s * [self frame].size.width;
- int h = s * [self frame].size.height;
- for (UITouch *touch in touches) {
- CGPoint p = [touch locationInView:self];
- xe.xany.type = MotionNotify;
- xe.xmotion.x = s * p.x;
- xe.xmotion.y = s * p.y;
- rotate_mouse (&xe.xbutton.x, &xe.xbutton.y, w, h, rot_current_angle);
- jwxyz_mouse_moved (xdpy, xwindow, xe.xmotion.x, xe.xmotion.y);
- xsft->event_cb (xdpy, xwindow, xdata, &xe);
- i++;
- }
+/* Drag with one finger down: send MotionNotify.
+ */
+- (void) handlePan:(UIGestureRecognizer *)sender
+{
+ if (!xsft->event_cb || !xwindow) return;
+
+ XEvent xe;
+ memset (&xe, 0, sizeof(xe));
+
+ CGPoint p = [sender locationInView:self]; // this is in points, not pixels
+ int x = p.x;
+ int y = p.y;
+ [self convertMouse: rot_current_angle x:&x y:&y];
+ jwxyz_mouse_moved (xdpy, xwindow, x, y);
+
+ switch (sender.state) {
+ case UIGestureRecognizerStateBegan:
+ xe.xany.type = ButtonPress;
+ xe.xbutton.button = 1;
+ xe.xbutton.x = x;
+ xe.xbutton.y = y;
+ break;
+
+ case UIGestureRecognizerStateEnded:
+ xe.xany.type = ButtonRelease;
+ xe.xbutton.button = 1;
+ xe.xbutton.x = x;
+ xe.xbutton.y = y;
+ break;
+
+ case UIGestureRecognizerStateChanged:
+ xe.xany.type = MotionNotify;
+ xe.xmotion.x = x;
+ xe.xmotion.y = y;
+ break;
+
+ default:
+ break;
}
+
+ BOOL ok = [self sendEvent: &xe];
+ if (!ok && xe.xany.type == ButtonRelease)
+ [self beep];
+}
+
+
+/* Hold one finger down: assume we're about to start dragging.
+ Treat the same as Pan.
+ */
+- (void) handleLongPress:(UIGestureRecognizer *)sender
+{
+ [self handlePan:sender];
+}
+
+
+
+/* Drag with 2 fingers down: send arrow keys.
+ */
+- (void) handlePan2:(UIPanGestureRecognizer *)sender
+{
+ if (!xsft->event_cb || !xwindow) return;
+
+ if (sender.state != UIGestureRecognizerStateEnded)
+ return;
+
+ XEvent xe;
+ memset (&xe, 0, sizeof(xe));
+
+ CGPoint p = [sender locationInView:self]; // this is in points, not pixels
+ int x = p.x;
+ int y = p.y;
+ [self convertMouse: rot_current_angle x:&x y:&y];
+
+ if (abs(x) > abs(y))
+ xe.xkey.keycode = (x > 0 ? XK_Right : XK_Left);
+ else
+ xe.xkey.keycode = (y > 0 ? XK_Down : XK_Up);
+
+ BOOL ok1 = [self sendEvent: &xe];
+ xe.xany.type = KeyRelease;
+ BOOL ok2 = [self sendEvent: &xe];
+ if (!(ok1 || ok2))
+ [self beep];
}
/* We need this to respond to "shake" gestures
*/
-- (BOOL)canBecomeFirstResponder {
+- (BOOL)canBecomeFirstResponder
+{
return YES;
}
+- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event
+{
+}
+
+
+- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event
+{
+}
+
+/* Shake means exit and launch a new saver.
+ */
+- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
+{
+ [self stopAndClose:YES];
+}
+
- (void)setScreenLocked:(BOOL)locked
{
}
}
-
#endif // USE_IPHONE
+- (void) checkForUpdates
+{
+# ifndef USE_IPHONE
+ // We only check once at startup, even if there are multiple screens,
+ // and even if this saver is running for many days.
+ // (Uh, except this doesn't work because this static isn't shared,
+ // even if we make it an exported global. Not sure why. Oh well.)
+ static BOOL checked_p = NO;
+ if (checked_p) return;
+ checked_p = YES;
+
+ // If it's off, don't bother running the updater. Otherwise, the
+ // updater will decide if it's time to hit the network.
+ if (! get_boolean_resource (xdpy,
+ SUSUEnableAutomaticChecksKey,
+ SUSUEnableAutomaticChecksKey))
+ return;
+
+ NSString *updater = @"XScreenSaverUpdater.app";
+
+ // There may be multiple copies of the updater: e.g., one in /Applications
+ // and one in the mounted installer DMG! It's important that we run the
+ // one from the disk and not the DMG, so search for the right one.
+ //
+ NSWorkspace *workspace = [NSWorkspace sharedWorkspace];
+ NSBundle *bundle = [NSBundle bundleForClass:[self class]];
+ NSArray *search =
+ @[[[bundle bundlePath] stringByDeletingLastPathComponent],
+ [@"~/Library/Screen Savers" stringByExpandingTildeInPath],
+ @"/Library/Screen Savers",
+ @"/System/Library/Screen Savers",
+ @"/Applications",
+ @"/Applications/Utilities"];
+ NSString *app_path = nil;
+ for (NSString *dir in search) {
+ NSString *p = [dir stringByAppendingPathComponent:updater];
+ if ([[NSFileManager defaultManager] fileExistsAtPath:p]) {
+ app_path = p;
+ break;
+ }
+ }
+
+ if (! app_path)
+ app_path = [workspace fullPathForApplication:updater];
+
+ if (app_path && [app_path hasPrefix:@"/Volumes/XScreenSaver "])
+ app_path = 0; // The DMG version will not do.
+
+ if (!app_path) {
+ NSLog(@"Unable to find %@", updater);
+ return;
+ }
+
+ NSError *err = nil;
+ if (! [workspace launchApplicationAtURL:[NSURL fileURLWithPath:app_path]
+ options:(NSWorkspaceLaunchWithoutAddingToRecents |
+ NSWorkspaceLaunchWithoutActivation |
+ NSWorkspaceLaunchAndHide)
+ configuration:nil
+ error:&err]) {
+ NSLog(@"Unable to launch %@: %@", app_path, err);
+ }
+
+# endif // !USE_IPHONE
+}
+
+
@end
/* Utility functions...
get_prefsReader (Display *dpy)
{
XScreenSaverView *view = jwxyz_window_view (XRootWindow (dpy, 0));
- if (!view) abort();
+ if (!view) return 0;
return [view prefsReader];
}
projects / xscreensaver / blobdiff