+++ /dev/null
-/* xscreensaver, Copyright (c) 2006-2013 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"
- library. In xscreensaver terminology, this is the replacement for
- the "screenhack.c" module.
- */
-
-#import <QuartzCore/QuartzCore.h>
-#import <zlib.h>
-#import "XScreenSaverView.h"
-#import "XScreenSaverConfigSheet.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.
- */
-#ifndef MAC_OS_X_VERSION_10_6
-# define MAC_OS_X_VERSION_10_6 1060 /* undefined in 10.4 SDK, grr */
-#endif
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6 /* 10.6 SDK */
-# import <objc/objc-auto.h>
-# define DO_GC_HACKERY
-#endif
-
-extern struct xscreensaver_function_table *xscreensaver_function_table;
-
-/* Global variables used by the screen savers
- */
-const char *progname;
-const char *progclass;
-int mono_p = 0;
-
-
-# ifdef USE_IPHONE
-
-extern NSDictionary *make_function_table_dict(void); // ios-function-table.m
-
-/* Stub definition of the superclass, for iPhone.
- */
-@implementation ScreenSaverView
-{
- NSTimeInterval anim_interval;
- Bool animating_p;
- NSTimer *anim_timer;
-}
-
-- (id)initWithFrame:(NSRect)frame isPreview:(BOOL)isPreview {
- self = [super initWithFrame:frame];
- if (! self) return 0;
- anim_interval = 1.0/30;
- return self;
-}
-- (NSTimeInterval)animationTimeInterval { return anim_interval; }
-- (void)setAnimationTimeInterval:(NSTimeInterval)i { anim_interval = i; }
-- (BOOL)hasConfigureSheet { return NO; }
-- (NSWindow *)configureSheet { return nil; }
-- (NSView *)configureView { return nil; }
-- (BOOL)isPreview { return NO; }
-- (BOOL)isAnimating { return animating_p; }
-- (void)animateOneFrame { }
-
-- (void)startAnimation {
- if (animating_p) return;
- animating_p = YES;
- anim_timer = [NSTimer scheduledTimerWithTimeInterval: anim_interval
- target:self
- selector:@selector(animateOneFrame)
- userInfo:nil
- repeats:YES];
-}
-
-- (void)stopAnimation {
- if (anim_timer) {
- [anim_timer invalidate];
- anim_timer = 0;
- }
- animating_p = NO;
-}
-@end
-
-# endif // !USE_IPHONE
-
-
-
-@interface XScreenSaverView (Private)
-- (void) stopAndClose:(Bool)relaunch;
-@end
-
-@implementation XScreenSaverView
-
-// Given a lower-cased saver name, returns the function table for it.
-// If no name, guess the name from the class's bundle name.
-//
-- (struct xscreensaver_function_table *) findFunctionTable:(NSString *)name
-{
- NSBundle *nsb = [NSBundle bundleForClass:[self class]];
- NSAssert1 (nsb, @"no bundle for class %@", [self class]);
-
- NSString *path = [nsb bundlePath];
- CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
- (CFStringRef) path,
- kCFURLPOSIXPathStyle,
- true);
- 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];
-
- 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
- // Remember: any time you add a new saver to the iOS app,
- // manually run "make ios-function-table.m"!
- 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;
-}
-
-
-// Add the "Contents/Resources/" subdirectory of this screen saver's .bundle
-// to $PATH for the benefit of savers that include helper shell scripts.
-//
-- (void) setShellPath
-{
- NSBundle *nsb = [NSBundle bundleForClass:[self class]];
- NSAssert1 (nsb, @"no bundle for class %@", [self class]);
-
- NSString *nsdir = [nsb resourcePath];
- NSAssert1 (nsdir, @"no resourcePath for class %@", [self class]);
- const char *dir = [nsdir cStringUsingEncoding:NSUTF8StringEncoding];
- const char *opath = getenv ("PATH");
- if (!opath) opath = "/bin"; // $PATH is unset when running under Shark!
- char *npath = (char *) malloc (strlen (opath) + strlen (dir) + 30);
- strcpy (npath, "PATH=");
- strcat (npath, dir);
- strcat (npath, ":");
- strcat (npath, opath);
- if (putenv (npath)) {
- perror ("putenv");
- NSAssert1 (0, @"putenv \"%s\" failed", npath);
- }
-
- /* Don't free (npath) -- MacOS's putenv() does not copy it. */
-}
-
-
-// set an $XSCREENSAVER_CLASSPATH variable so that included shell scripts
-// (e.g., "xscreensaver-text") know how to look up resources.
-//
-- (void) setResourcesEnv:(NSString *) name
-{
- NSBundle *nsb = [NSBundle bundleForClass:[self class]];
- NSAssert1 (nsb, @"no bundle for class %@", [self class]);
-
- const char *s = [name cStringUsingEncoding:NSUTF8StringEncoding];
- char *env = (char *) malloc (strlen (s) + 40);
- strcpy (env, "XSCREENSAVER_CLASSPATH=");
- strcat (env, s);
- if (putenv (env)) {
- perror ("putenv");
- NSAssert1 (0, @"putenv \"%s\" failed", env);
- }
- /* Don't free (env) -- MacOS's putenv() does not copy it. */
-}
-
-
-static void
-add_default_options (const XrmOptionDescRec *opts,
- const char * const *defs,
- XrmOptionDescRec **opts_ret,
- const char ***defs_ret)
-{
- /* These aren't "real" command-line options (there are no actual command-line
- options in the Cocoa version); but this is the somewhat kludgey way that
- the <xscreensaver-text /> and <xscreensaver-image /> tags in the
- ../hacks/config/\*.xml files communicate with the preferences database.
- */
- static const XrmOptionDescRec default_options [] = {
- { "-text-mode", ".textMode", XrmoptionSepArg, 0 },
- { "-text-literal", ".textLiteral", XrmoptionSepArg, 0 },
- { "-text-file", ".textFile", XrmoptionSepArg, 0 },
- { "-text-url", ".textURL", XrmoptionSepArg, 0 },
- { "-text-program", ".textProgram", XrmoptionSepArg, 0 },
- { "-grab-desktop", ".grabDesktopImages", XrmoptionNoArg, "True" },
- { "-no-grab-desktop", ".grabDesktopImages", XrmoptionNoArg, "False"},
- { "-choose-random-images", ".chooseRandomImages",XrmoptionNoArg, "True" },
- { "-no-choose-random-images",".chooseRandomImages",XrmoptionNoArg, "False"},
- { "-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 },
- { 0, 0, 0, 0 }
- };
- static const char *default_defaults [] = {
- ".doFPS: False",
- ".doubleBuffer: True",
- ".multiSample: False",
-# ifndef USE_IPHONE
- ".textMode: date",
-# else
- ".textMode: url",
-# endif
- // ".textLiteral: ",
- // ".textFile: ",
- ".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",
- 0
- };
-
- int count = 0, i, j;
- for (i = 0; default_options[i].option; i++)
- count++;
- for (i = 0; opts[i].option; i++)
- count++;
-
- XrmOptionDescRec *opts2 = (XrmOptionDescRec *)
- calloc (count + 1, sizeof (*opts2));
-
- i = 0;
- j = 0;
- while (default_options[j].option) {
- opts2[i] = default_options[j];
- i++, j++;
- }
- j = 0;
- while (opts[j].option) {
- opts2[i] = opts[j];
- i++, j++;
- }
-
- *opts_ret = opts2;
-
-
- /* now the defaults
- */
- count = 0;
- for (i = 0; default_defaults[i]; i++)
- count++;
- for (i = 0; defs[i]; i++)
- count++;
-
- const char **defs2 = (const char **) calloc (count + 1, sizeof (*defs2));
-
- i = 0;
- j = 0;
- while (default_defaults[j]) {
- defs2[i] = default_defaults[j];
- i++, j++;
- }
- j = 0;
- while (defs[j]) {
- defs2[i] = defs[j];
- i++, j++;
- }
-
- *defs_ret = defs2;
-}
-
-
-#ifdef USE_IPHONE
-/* Returns the current time in seconds as a double.
- */
-static double
-double_time (void)
-{
- struct timeval now;
-# ifdef GETTIMEOFDAY_TWO_ARGS
- struct timezone tzp;
- gettimeofday(&now, &tzp);
-# else
- gettimeofday(&now);
-# endif
-
- return (now.tv_sec + ((double) now.tv_usec * 0.000001));
-}
-#endif // USE_IPHONE
-
-
-- (id) initWithFrame:(NSRect)frame
- saverName:(NSString *)saverName
- isPreview:(BOOL)isPreview
-{
-# ifdef USE_IPHONE
- initial_bounds = frame.size;
- 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;
-
- xsft = [self findFunctionTable: saverName];
- if (! xsft) {
- [self release];
- 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);
-
- /* The plist files for these preferences show up in
- $HOME/Library/Preferences/ByHost/ in a file named like
- "org.jwz.xscreensaver.<SAVERNAME>.<NUMBERS>.plist"
- */
- NSString *name = [NSString stringWithCString:xsft->progclass
- encoding:NSISOLatin1StringEncoding];
- name = [@"org.jwz.xscreensaver." stringByAppendingString:name];
- [self setResourcesEnv:name];
-
-
- XrmOptionDescRec *opts = 0;
- const char **defs = 0;
- add_default_options (xsft->options, xsft->defaults, &opts, &defs);
- prefsReader = [[PrefsReader alloc]
- initWithName:name xrmKeys:opts defaults:defs];
- free (defs);
- // free (opts); // bah, we need these! #### leak!
- xsft->options = opts;
-
- progname = progclass = xsft->progclass;
-
- next_frame_time = 0;
-
-# ifdef USE_BACKBUFFER
- [self createBackbuffer];
- [self initLayer];
-# endif
-
-# ifdef USE_IPHONE
- // So we can tell when we're docked.
- [UIDevice currentDevice].batteryMonitoringEnabled = YES;
-# endif // USE_IPHONE
-
- return self;
-}
-
-- (void) initLayer
-{
-# ifndef USE_IPHONE
- [self setLayer: [CALayer layer]];
- self.layer.delegate = self;
- self.layer.opaque = YES;
- [self setWantsLayer: YES];
-# endif
-}
-
-
-- (id) initWithFrame:(NSRect)frame isPreview:(BOOL)p
-{
- return [self initWithFrame:frame saverName:0 isPreview:p];
-}
-
-
-- (void) dealloc
-{
- NSAssert(![self isAnimating], @"still animating");
- NSAssert(!xdata, @"xdata not yet freed");
- if (xdpy)
- jwxyz_free_display (xdpy);
-
-# ifdef USE_BACKBUFFER
- if (backbuffer)
- CGContextRelease (backbuffer);
-# endif
-
- [prefsReader release];
-
- // xsft
- // fpst
-
- [super dealloc];
-}
-
-- (PrefsReader *) prefsReader
-{
- return prefsReader;
-}
-
-
-#ifdef USE_IPHONE
-- (void) lockFocus { }
-- (void) unlockFocus { }
-#endif // USE_IPHONE
-
-
-
-# ifdef USE_IPHONE
-/* A few seconds after the saver launches, we store the "wasRunning"
- preference. This is so that if the saver is crashing at startup,
- we don't launch it again next time, getting stuck in a crash loop.
- */
-- (void) allSystemsGo: (NSTimer *) timer
-{
- 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
-
-
-- (void) startAnimation
-{
- NSAssert(![self isAnimating], @"already animating");
- NSAssert(!initted_p && !xdata, @"already initialized");
- [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
- to animateOneFrame() instead.
- */
-
-# 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,
- // and an animation is running.
- //
-# ifdef USE_IPHONE
- [UIApplication sharedApplication].idleTimerDisabled =
- ([UIDevice currentDevice].batteryState != UIDeviceBatteryStateUnplugged);
-# endif
-}
-
-
-- (void)stopAnimation
-{
- NSAssert([self isAnimating], @"not animating");
-
- if (initted_p) {
-
- [self lockFocus]; // in case something tries to draw from here
- [self prepareContext];
-
- /* I considered just not even calling the free callback at all...
- But webcollage-cocoa needs it, to kill the inferior webcollage
- processes (since the screen saver framework never generates a
- SIGPIPE for them...) Instead, I turned off the free call in
- xlockmore.c, which is where all of the bogus calls are anyway.
- */
- xsft->free_cb (xdpy, xwindow, xdata);
- [self unlockFocus];
-
-// setup_p = NO; // #### wait, do we need this?
- initted_p = NO;
- xdata = 0;
- }
-
-# ifdef USE_IPHONE
- if (crash_timer)
- [crash_timer invalidate];
- crash_timer = 0;
- NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
- [prefs removeObjectForKey:@"wasRunning"];
- [prefs synchronize];
-# endif // USE_IPHONE
-
- [super stopAnimation];
-
- // When an animation is no longer running (e.g., looking at the list)
- // then it's ok to power off the screen when docked.
- //
-# ifdef USE_IPHONE
- [UIApplication sharedApplication].idleTimerDisabled = NO;
-# endif
-}
-
-
-/* Hook for the XScreenSaverGLView subclass
- */
-- (void) prepareContext
-{
-}
-
-/* Hook for the XScreenSaverGLView subclass
- */
-- (void) resizeContext
-{
-}
-
-
-static void
-screenhack_do_fps (Display *dpy, Window w, fps_state *fpst, void *closure)
-{
- fps_compute (fpst, 0, -1);
- fps_draw (fpst);
-}
-
-
-#ifdef USE_IPHONE
-
-/* 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.
- */
-- (CGFloat) hackedContentScaleFactor
-{
- GLfloat s = [self contentScaleFactor];
- if (initial_bounds.width >= 1024 ||
- initial_bounds.height >= 1024)
- s = 1;
- return s;
-}
-
-
-static GLfloat _global_rot_current_angle_kludge;
-
-double current_device_rotation (void)
-{
- return -_global_rot_current_angle_kludge;
-}
-
-
-- (void) hackRotation
-{
- if (rotation_ratio >= 0) { // in the midst of a rotation animation
-
-# define CLAMP180(N) while (N < 0) N += 360; while (N > 180) N -= 360
- GLfloat f = angle_from;
- GLfloat t = angle_to;
- CLAMP180(f);
- CLAMP180(t);
- GLfloat dist = -(t-f);
- CLAMP180(dist);
-
- // Intermediate angle.
- rot_current_angle = f - rotation_ratio * dist;
-
- // Intermediate frame size.
- rot_current_size.width = rot_from.width +
- rotation_ratio * (rot_to.width - rot_from.width);
- rot_current_size.height = rot_from.height +
- rotation_ratio * (rot_to.height - rot_from.height);
-
- // Tick animation. Complete rotation in 1/6th sec.
- double now = double_time();
- double duration = 1/6.0;
- rotation_ratio = 1 - ((rot_start_time + duration - now) / duration);
-
- if (rotation_ratio > 1) { // Done animating.
- orientation = new_orientation;
- rot_current_angle = angle_to;
- rot_current_size = rot_to;
- rotation_ratio = -1;
-
- // Check orientation again in case we rotated again while rotating:
- // this is a no-op if nothing has changed.
- [self didRotate:nil];
- }
- } else { // Not animating a rotation.
- rot_current_angle = angle_to;
- rot_current_size = rot_to;
- }
-
- CLAMP180(rot_current_angle);
- _global_rot_current_angle_kludge = rot_current_angle;
-
-# undef CLAMP180
-
- double s = [self hackedContentScaleFactor];
- if (!ignore_rotation_p &&
- /* rotation_ratio && */
- ((int) backbuffer_size.width != (int) (s * rot_current_size.width) ||
- (int) backbuffer_size.height != (int) (s * rot_current_size.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.
- */
-- (void) createBackbuffer
-{
-# ifdef USE_IPHONE
- double s = [self hackedContentScaleFactor];
- CGSize rotsize = ignore_rotation_p ? initial_bounds : rot_current_size;
- int new_w = s * rotsize.width;
- int new_h = s * rotsize.height;
-# else
- int new_w = [self bounds].size.width;
- int new_h = [self bounds].size.height;
-# endif
-
- if (backbuffer &&
- backbuffer_size.width == new_w &&
- backbuffer_size.height == new_h)
- return;
-
- CGSize osize = backbuffer_size;
- CGContextRef ob = backbuffer;
-
- backbuffer_size.width = new_w;
- backbuffer_size.height = new_h;
-
- CGColorSpaceRef cs = CGColorSpaceCreateDeviceRGB();
- backbuffer = CGBitmapContextCreate (NULL,
- backbuffer_size.width,
- backbuffer_size.height,
- 8,
- backbuffer_size.width * 4,
- cs,
- // kCGImageAlphaPremultipliedLast
- (kCGImageAlphaNoneSkipFirst |
- kCGBitmapByteOrder32Host)
- );
- CGColorSpaceRelease (cs);
- 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;
- 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
-
-# ifdef USE_BACKBUFFER
- [self createBackbuffer];
- jwxyz_window_resized (xdpy, xwindow,
- 0, 0,
- backbuffer_size.width, backbuffer_size.height,
- backbuffer);
-# else // !USE_BACKBUFFER
- NSRect r = [self frame]; // ignoring rotation is closer
- r.size = [self bounds].size; // to what XGetGeometry expects.
- jwxyz_window_resized (xdpy, xwindow,
- r.origin.x, r.origin.y,
- r.size.width, r.size.height,
- 0);
-# endif // !USE_BACKBUFFER
-
- // 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];
-# endif
-
- if (!initted_p) {
-
- if (! xdpy) {
-# ifdef USE_BACKBUFFER
- NSAssert (backbuffer, @"no back buffer");
- xdpy = jwxyz_make_display (self, backbuffer);
-# else
- xdpy = jwxyz_make_display (self, 0);
-# endif
- xwindow = XRootWindow (xdpy, 0);
-
-# ifdef USE_IPHONE
- /* 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) {
- setup_p = YES;
- if (xsft->setup_cb)
- xsft->setup_cb (xsft, xsft->setup_arg);
- }
- initted_p = YES;
- resized_p = NO;
- NSAssert(!xdata, @"xdata already initialized");
-
-
-# undef ya_rand_init
- ya_rand_init (0);
-
- XSetWindowBackground (xdpy, xwindow,
- get_pixel_resource (xdpy, 0,
- "background", "Background"));
- XClearWindow (xdpy, xwindow);
-
-# ifndef USE_IPHONE
- [[self window] setAcceptsMouseMovedEvents:YES];
-# endif
-
- /* In MacOS 10.5, this enables "QuartzGL", meaning that the Quartz
- drawing primitives will run on the GPU instead of the CPU.
- It seems like it might make things worse rather than better,
- though... Plus it makes us binary-incompatible with 10.4.
-
-# if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
- [[self window] setPreferredBackingLocation:
- NSWindowBackingLocationVideoMemory];
-# endif
- */
-
- /* Kludge: even though the init_cb functions are declared to take 2 args,
- actually call them with 3, for the benefit of xlockmore_init() and
- xlockmore_setup().
- */
- void *(*init_cb) (Display *, Window, void *) =
- (void *(*) (Display *, Window, void *)) xsft->init_cb;
-
- xdata = init_cb (xdpy, xwindow, xsft->setup_arg);
-
- if (get_boolean_resource (xdpy, "doFPS", "DoFPS")) {
- fpst = fps_init (xdpy, xwindow);
- if (! xsft->fps_cb) xsft->fps_cb = screenhack_do_fps;
- }
- }
-
-
- /* I don't understand why we have to do this *every frame*, but we do,
- or else the cursor comes back on.
- */
-# ifndef USE_IPHONE
- if (![self isPreview])
- [NSCursor setHiddenUntilMouseMoves:YES];
-# endif
-
-
- if (fpst)
- {
- /* This is just a guess, but the -fps code wants to know how long
- we were sleeping between frames.
- */
- long usecs = 1000000 * [self animationTimeInterval];
- usecs -= 200; // caller apparently sleeps for slightly less sometimes...
- if (usecs < 0) usecs = 0;
- fps_slept (fpst, usecs);
- }
-
-
- /* 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.
-
- 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.
- */
- struct timeval tv;
- gettimeofday (&tv, 0);
- double now = tv.tv_sec + (tv.tv_usec / 1000000.0);
- if (now < next_frame_time) return;
-
- [self prepareContext];
-
- if (resized_p) {
- // We do this here instead of in setFrame so that all the
- // Xlib drawing takes place under the animation timer.
- [self resizeContext];
- NSRect r;
-# 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_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.)
- //
- jwxyz_sources_run (display_sources_data (xdpy));
-
-
- // And finally:
- //
-# ifndef USE_IPHONE
- NSDisableScreenUpdates();
-# endif
- unsigned long delay = xsft->draw_cb (xdpy, xwindow, xdata);
- if (fpst) xsft->fps_cb (xdpy, xwindow, fpst, xdata);
-# ifndef USE_IPHONE
- NSEnableScreenUpdates();
-# endif
-
- gettimeofday (&tv, 0);
- now = tv.tv_sec + (tv.tv_usec / 1000000.0);
- next_frame_time = now + (delay / 1000000.0);
-
-# ifdef USE_IPHONE // Allow savers on the iPhone to run full-tilt.
- if (delay < [self animationTimeInterval])
- [self setAnimationTimeInterval:(delay / 1000000.0)];
-# endif
-
-# ifdef DO_GC_HACKERY
- /* Current theory is that the 10.6 garbage collector sucks in the
- following way:
-
- It only does a collection when a threshold of outstanding
- collectable allocations has been surpassed. However, CoreGraphics
- creates lots of small collectable allocations that contain pointers
- to very large non-collectable allocations: a small CG object that's
- collectable referencing large malloc'd allocations (non-collectable)
- containing bitmap data. So the large allocation doesn't get freed
- until GC collects the small allocation, which triggers its finalizer
- to run which frees the large allocation. So GC is deciding that it
- doesn't really need to run, even though the process has gotten
- enormous. GC eventually runs once pageouts have happened, but by
- then it's too late, and the machine's resident set has been
- sodomized.
-
- So, we force an exhaustive garbage collection in this process
- approximately every 5 seconds whether the system thinks it needs
- one or not.
- */
- {
- static int tick = 0;
- if (++tick > 5*30) {
- tick = 0;
- objc_collect (OBJC_EXHAUSTIVE_COLLECTION);
- }
- }
-# endif // DO_GC_HACKERY
-
-# ifdef USE_IPHONE
- }
- @catch (NSException *e) {
- [self handleException: e];
- }
-# endif // USE_IPHONE
-}
-
-
-/* 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.
- */
-
-- (void)drawRect:(NSRect)rect
-{
- if (xwindow) // clear to the X window's bg color, not necessarily black.
- XClearWindow (xdpy, xwindow);
- else
- [super drawRect:rect]; // early: black.
-}
-
-
-#ifndef USE_BACKBUFFER
-
-- (void) animateOneFrame
-{
- [self render_x11];
-}
-
-#else // USE_BACKBUFFER
-
-- (void) animateOneFrame
-{
- // Render X11 into the backing store bitmap...
-
- NSAssert (backbuffer, @"no back buffer");
-
-# ifdef USE_IPHONE
- UIGraphicsPushContext (backbuffer);
-# endif
-
- [self render_x11];
-
-# ifdef USE_IPHONE
- UIGraphicsPopContext();
-# endif
-
-# ifdef USE_IPHONE
- // Then compute the transformations for rotation.
- double hs = [self hackedContentScaleFactor];
- double s = [self contentScaleFactor];
-
- // 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));
-
- CGFloat f = s / hs;
- self.layer.affineTransform = CGAffineTransformScale(t, f, f);
-
- CGRect bounds;
- bounds.origin.x = 0;
- bounds.origin.y = 0;
- bounds.size.width = backbuffer_size.width / s;
- bounds.size.height = backbuffer_size.height / s;
- self.layer.bounds = bounds;
-# endif // USE_IPHONE
-
- [self.layer setNeedsDisplay];
-}
-
-- (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
- )
- {
- 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);
-
- 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 {
-
- // iPad 1: 9.6 ms, iPad 2: 12.1 ms
-
-#ifdef USE_IPHONE
- CGContextScaleCTM (ctx, 1, -1);
- CGFloat s = [self contentScaleFactor];
- CGFloat hs = [self hackedContentScaleFactor];
- CGContextTranslateCTM (ctx, 0, -backbuffer_size.height * hs / s);
-#endif
-
- CGImageRef img = CGBitmapContextCreateImage (backbuffer);
- CGContextDrawImage (ctx, self.layer.bounds, img);
- CGImageRelease (img);
- }
-}
-
-#endif // !USE_BACKBUFFER
-
-
-
-- (void) setFrame:(NSRect) newRect
-{
- [super setFrame:newRect];
-
- if (xwindow) // inform Xlib that the window has changed now.
- [self resize_x11];
-}
-
-
-# ifndef USE_IPHONE // Doesn't exist on iOS
-- (void) setFrameSize:(NSSize) newSize
-{
- [super setFrameSize:newSize];
- if (xwindow)
- [self resize_x11];
-}
-# endif // !USE_IPHONE
-
-
-+(BOOL) performGammaFade
-{
- return YES;
-}
-
-- (BOOL) hasConfigureSheet
-{
- 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 = data.length;
- zs.next_out = (Bytef *) data2.bytes;
- zs.avail_out = 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
-- (UIViewController *) configureView
-#endif
-{
- NSBundle *bundle = [NSBundle bundleForClass:[self class]];
- NSString *file = [NSString stringWithCString:xsft->progclass
- encoding:NSISOLatin1StringEncoding];
- file = [file lowercaseString];
- NSString *path = [bundle pathForResource:file ofType:@"xml"];
- if (!path) {
- NSLog (@"%@.xml does not exist in the application bundle: %@/",
- file, [bundle resourcePath]);
- return nil;
- }
-
-# ifdef USE_IPHONE
- UIViewController *sheet;
-# else // !USE_IPHONE
- NSWindow *sheet;
-# endif // !USE_IPHONE
-
- NSData *xmld = [NSData dataWithContentsOfFile:path];
- NSString *xml = [[self class] decompressXML: xmld];
- sheet = [[XScreenSaverConfigSheet alloc]
- initWithXML:[xml dataUsingEncoding:NSUTF8StringEncoding]
- options:xsft->options
- controller:[prefsReader userDefaultsController]
- 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.
- // #### Analyze says "potential leak of an object stored into sheet"
- [sheet retain];
-
- return sheet;
-}
-
-
-- (NSUserDefaultsController *) userDefaultsController
-{
- return [prefsReader userDefaultsController];
-}
-
-
-/* Announce our willingness to accept keyboard input.
-*/
-- (BOOL)acceptsFirstResponder
-{
- return YES;
-}
-
-
-#ifndef USE_IPHONE
-
-/* Convert an NSEvent into an XEvent, and pass it along.
- Returns YES if it was handled.
- */
-- (BOOL) doEvent: (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));
-
- int state = 0;
-
- int flags = [e modifierFlags];
- if (flags & NSAlphaShiftKeyMask) state |= LockMask;
- if (flags & NSShiftKeyMask) state |= ShiftMask;
- if (flags & NSControlKeyMask) state |= ControlMask;
- if (flags & NSAlternateKeyMask) state |= Mod1Mask;
- if (flags & NSCommandKeyMask) state |= Mod2Mask;
-
- NSPoint p = [[[e window] contentView] convertPoint:[e locationInWindow]
- toView:self];
-# ifdef USE_IPHONE
- double s = [self hackedContentScaleFactor];
-# else
- int s = 1;
-# endif
- int x = s * p.x;
- int y = s * ([self bounds].size.height - p.y);
-
- xe.xany.type = type;
- switch (type) {
- case ButtonPress:
- case ButtonRelease:
- xe.xbutton.x = x;
- xe.xbutton.y = y;
- xe.xbutton.state = state;
- if ([e type] == NSScrollWheel)
- xe.xbutton.button = ([e deltaY] > 0 ? Button4 :
- [e deltaY] < 0 ? Button5 :
- [e deltaX] > 0 ? Button6 :
- [e deltaX] < 0 ? Button7 :
- 0);
- else
- xe.xbutton.button = [e buttonNumber] + 1;
- break;
- case MotionNotify:
- xe.xmotion.x = x;
- xe.xmotion.y = y;
- xe.xmotion.state = state;
- break;
- case KeyPress:
- case KeyRelease:
- {
- NSString *ns = (([e type] == NSFlagsChanged) ? 0 :
- [e charactersIgnoringModifiers]);
- KeySym k = 0;
-
- if (!ns || [ns length] == 0) // dead key
- {
- // Cocoa hides the difference between left and right keys.
- // Also we only get KeyPress events for these, no KeyRelease
- // (unless we hack the mod state manually. Bleh.)
- //
- if (flags & NSAlphaShiftKeyMask) k = XK_Caps_Lock;
- else if (flags & NSShiftKeyMask) k = XK_Shift_L;
- else if (flags & NSControlKeyMask) k = XK_Control_L;
- else if (flags & NSAlternateKeyMask) k = XK_Alt_L;
- else if (flags & NSCommandKeyMask) k = XK_Meta_L;
- }
- else if ([ns length] == 1) // real key
- {
- switch ([ns characterAtIndex:0]) {
- case NSLeftArrowFunctionKey: k = XK_Left; break;
- case NSRightArrowFunctionKey: k = XK_Right; break;
- case NSUpArrowFunctionKey: k = XK_Up; break;
- case NSDownArrowFunctionKey: k = XK_Down; break;
- case NSPageUpFunctionKey: k = XK_Page_Up; break;
- case NSPageDownFunctionKey: k = XK_Page_Down; break;
- case NSHomeFunctionKey: k = XK_Home; break;
- case NSPrevFunctionKey: k = XK_Prior; break;
- case NSNextFunctionKey: k = XK_Next; break;
- case NSBeginFunctionKey: k = XK_Begin; break;
- case NSEndFunctionKey: k = XK_End; break;
- default:
- {
- const char *s =
- [ns cStringUsingEncoding:NSISOLatin1StringEncoding];
- k = (s && *s ? *s : 0);
- }
- break;
- }
- }
-
- if (! k) return YES; // E.g., "KeyRelease XK_Shift_L"
-
- xe.xkey.keycode = k;
- xe.xkey.state = state;
- break;
- }
- default:
- 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;
-}
-
-
-- (void) mouseDown: (NSEvent *) e
-{
- if (! [self doEvent:e type:ButtonPress])
- [super mouseDown:e];
-}
-
-- (void) mouseUp: (NSEvent *) e
-{
- if (! [self doEvent:e type:ButtonRelease])
- [super mouseUp:e];
-}
-
-- (void) otherMouseDown: (NSEvent *) e
-{
- if (! [self doEvent:e type:ButtonPress])
- [super otherMouseDown:e];
-}
-
-- (void) otherMouseUp: (NSEvent *) e
-{
- if (! [self doEvent:e type:ButtonRelease])
- [super otherMouseUp:e];
-}
-
-- (void) mouseMoved: (NSEvent *) e
-{
- if (! [self doEvent:e type:MotionNotify])
- [super mouseMoved:e];
-}
-
-- (void) mouseDragged: (NSEvent *) e
-{
- if (! [self doEvent:e type:MotionNotify])
- [super mouseDragged:e];
-}
-
-- (void) otherMouseDragged: (NSEvent *) e
-{
- if (! [self doEvent:e type:MotionNotify])
- [super otherMouseDragged:e];
-}
-
-- (void) scrollWheel: (NSEvent *) e
-{
- if (! [self doEvent:e type:ButtonPress])
- [super scrollWheel:e];
-}
-
-- (void) keyDown: (NSEvent *) e
-{
- if (! [self doEvent:e type:KeyPress])
- [super keyDown:e];
-}
-
-- (void) keyUp: (NSEvent *) e
-{
- if (! [self doEvent:e type:KeyRelease])
- [super keyUp:e];
-}
-
-- (void) flagsChanged: (NSEvent *) e
-{
- if (! [self doEvent: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];
- }
-
- UIView *fader = [self superview]; // the "backgroundView" view is our parent
-
- if (relaunch_p) { // Fake a shake on the SaverListController.
- // Why is [self window] sometimes null here?
- UIWindow *w = [[UIApplication sharedApplication] keyWindow];
- UIViewController *v = [w rootViewController];
- if ([v isKindOfClass: [UINavigationController class]]) {
- UINavigationController *n = (UINavigationController *) v;
- [[n topViewController] motionEnded: UIEventSubtypeMotionShake
- withEvent: nil];
- }
- } else { // Not launching another, animate our return to the list.
- [UIView animateWithDuration: 0.5
- animations:^{ fader.alpha = 0.0; }
- completion:^(BOOL finished) {
- [fader removeFromSuperview];
- fader.alpha = 1.0;
- }];
- }
-}
-
-
-/* Called after the device's orientation has changed.
-
- 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.
-*/
-- (void)didRotate:(NSNotification *)notification
-{
- UIDeviceOrientation current = [[UIDevice currentDevice] orientation];
-
- /* If the simulator starts up in the rotated position, sometimes
- the UIDevice says we're in Portrait when we're not -- but it
- turns out that the UINavigationController knows what's up!
- So get it from there.
- */
- if (current == UIDeviceOrientationUnknown) {
- switch ([[[self window] rootViewController] interfaceOrientation]) {
- case UIInterfaceOrientationPortrait:
- current = UIDeviceOrientationPortrait;
- break;
- case UIInterfaceOrientationPortraitUpsideDown:
- current = UIDeviceOrientationPortraitUpsideDown;
- break;
- case UIInterfaceOrientationLandscapeLeft: // It's opposite day
- current = UIDeviceOrientationLandscapeRight;
- break;
- case UIInterfaceOrientationLandscapeRight:
- current = UIDeviceOrientationLandscapeLeft;
- break;
- default:
- break;
- }
- }
-
- /* On the iPad (but not iPhone 3GS, or the simulator) sometimes we get
- an orientation change event with an unknown orientation. Those seem
- to always be immediately followed by another orientation change with
- a *real* orientation change, so let's try just ignoring those bogus
- ones and hoping that the real one comes in shortly...
- */
- if (current == UIDeviceOrientationUnknown)
- return;
-
- 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 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 UIDeviceOrientationLandscapeLeft: angle_to = 90; break;
- case UIDeviceOrientationLandscapeRight: angle_to = 270; break;
- case UIDeviceOrientationPortraitUpsideDown: angle_to = 180; break;
- default: angle_to = 0; break;
- }
-
- switch (orientation) {
- 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 = initial_bounds.width;
- rot_from.height = initial_bounds.height;
- break;
- }
-
- switch (new_orientation) {
- 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 = initial_bounds.width;
- rot_to.height = initial_bounds.height;
- break;
- }
-
- 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.
- rot_start_time = 0; // dawn of time
- [self hackRotation];
- }
-}
-
-
-/* I believe we can't use UIGestureRecognizer for tracking touches
- because UIPanGestureRecognizer doesn't give us enough detail in its
- callbacks.
-
- Currently we don't handle multi-touches (just the first touch) but
- I'm leaving this comment here for future reference:
-
- In the simulator, multi-touch sequences look like this:
-
- touchesBegan [touchA, touchB]
- touchesEnd [touchA, touchB]
-
- But on real devices, sometimes you get that, but sometimes you get:
-
- touchesBegan [touchA, touchB]
- touchesEnd [touchB]
- touchesEnd [touchA]
-
- Or even
-
- touchesBegan [touchA]
- touchesBegan [touchB]
- touchesEnd [touchA]
- touchesEnd [touchB]
-
- 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.
- */
-
-- (void) rotateMouse:(int)rot x:(int*)x y:(int *)y w:(int)w h:(int)h
-{
- // This is a no-op unless contentScaleFactor != hackedContentScaleFactor.
- // Currently, this is the iPad Retina only.
- CGRect frame = [self bounds]; // Scale.
- double s = [self hackedContentScaleFactor];
- *x *= (backbuffer_size.width / frame.size.width) / s;
- *y *= (backbuffer_size.height / frame.size.height) / s;
-}
-
-
-#if 0 // AudioToolbox/AudioToolbox.h
-- (void) beep
-{
- // There's no way to play a standard system alert sound!
- // We'd have to include our own WAV for that. Eh, fuck it.
- AudioServicesPlaySystemSound (kSystemSoundID_Vibrate);
-# if TARGET_IPHONE_SIMULATOR
- NSLog(@"BEEP"); // The sim doesn't vibrate.
-# endif
-}
-#endif
-
-
-/* We distinguish between taps and drags.
- - Drags (down, motion, up) are sent to the saver to handle.
- - Single-taps exit the saver.
- This means a saver cannot respond to a single-tap. Only a few try to.
- */
-
-- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
-{
- // If they are trying to pinch, just do nothing.
- if ([[event allTouches] count] > 1)
- return;
-
- tap_time = 0;
-
- if (xsft->event_cb && xwindow) {
- double s = [self hackedContentScaleFactor];
- XEvent xe;
- memset (&xe, 0, sizeof(xe));
- int i = 0;
- // #### 'frame' here or 'bounds'?
- 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;
- [self rotateMouse: rot_current_angle
- x: &xe.xbutton.x y: &xe.xbutton.y w: w h: h];
- jwxyz_mouse_moved (xdpy, xwindow, xe.xbutton.x, xe.xbutton.y);
-
- // Ignore return code: don't care whether the hack handled it.
- xsft->event_cb (xdpy, xwindow, xdata, &xe);
-
- // Remember when/where this was, to determine tap versus drag or hold.
- tap_time = double_time();
- tap_point = p;
-
- i++;
- break; // No pinches: only look at the first touch.
- }
- }
-}
-
-
-- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
-{
- // If they are trying to pinch, just do nothing.
- if ([[event allTouches] count] > 1)
- return;
-
- if (xsft->event_cb && xwindow) {
- double s = [self hackedContentScaleFactor];
- XEvent xe;
- memset (&xe, 0, sizeof(xe));
- int i = 0;
- // #### 'frame' here or 'bounds'?
- int w = s * [self frame].size.width;
- int h = s * [self frame].size.height;
- for (UITouch *touch in touches) {
- CGPoint p = [touch locationInView:self];
-
- // If the ButtonRelease came less than half a second after ButtonPress,
- // and didn't move far, then this was a tap, not a drag or a hold.
- // Interpret it as "exit".
- //
- double dist = sqrt (((p.x - tap_point.x) * (p.x - tap_point.x)) +
- ((p.y - tap_point.y) * (p.y - tap_point.y)));
- if (tap_time + 0.5 >= double_time() && dist < 20) {
- [self stopAndClose:NO];
- return;
- }
-
- xe.xany.type = ButtonRelease;
- xe.xbutton.button = i + 1;
- xe.xbutton.x = s * p.x;
- xe.xbutton.y = s * p.y;
- [self rotateMouse: rot_current_angle
- x: &xe.xbutton.x y: &xe.xbutton.y w: w h: h];
- jwxyz_mouse_moved (xdpy, xwindow, xe.xbutton.x, xe.xbutton.y);
- xsft->event_cb (xdpy, xwindow, xdata, &xe);
- i++;
- break; // No pinches: only look at the first touch.
- }
- }
-}
-
-
-- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
-{
- // If they are trying to pinch, just do nothing.
- if ([[event allTouches] count] > 1)
- return;
-
- if (xsft->event_cb && xwindow) {
- double s = [self hackedContentScaleFactor];
- XEvent xe;
- memset (&xe, 0, sizeof(xe));
- int i = 0;
- // #### 'frame' here or 'bounds'?
- 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;
- [self rotateMouse: rot_current_angle
- x: &xe.xbutton.x y: &xe.xbutton.y w: w h: h];
- jwxyz_mouse_moved (xdpy, xwindow, xe.xmotion.x, xe.xmotion.y);
- xsft->event_cb (xdpy, xwindow, xdata, &xe);
- i++;
- break; // No pinches: only look at the first touch.
- }
- }
-}
-
-
-/* We need this to respond to "shake" gestures
- */
-- (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
-{
- if (screenLocked == locked) return;
- screenLocked = locked;
- if (locked) {
- if ([self isAnimating])
- [self stopAnimation];
- } else {
- if (! [self isAnimating])
- [self startAnimation];
- }
-}
-
-
-#endif // USE_IPHONE
-
-
-@end
-
-/* Utility functions...
- */
-
-static PrefsReader *
-get_prefsReader (Display *dpy)
-{
- XScreenSaverView *view = jwxyz_window_view (XRootWindow (dpy, 0));
- if (!view) return 0;
- return [view prefsReader];
-}
-
-
-char *
-get_string_resource (Display *dpy, char *name, char *class)
-{
- return [get_prefsReader(dpy) getStringResource:name];
-}
-
-Bool
-get_boolean_resource (Display *dpy, char *name, char *class)
-{
- return [get_prefsReader(dpy) getBooleanResource:name];
-}
-
-int
-get_integer_resource (Display *dpy, char *name, char *class)
-{
- return [get_prefsReader(dpy) getIntegerResource:name];
-}
-
-double
-get_float_resource (Display *dpy, char *name, char *class)
-{
- return [get_prefsReader(dpy) getFloatResource:name];
-}
projects / xscreensaver / blobdiff