-/* 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) 2006-2015 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 <sys/mman.h>
+#import <zlib.h>
#import "XScreenSaverView.h"
#import "XScreenSaverConfigSheet.h"
+#import "Updater.h"
#import "screenhackI.h"
#import "xlockmoreI.h"
#import "jwxyz-timers.h"
-#ifdef USE_IPHONE
-# include "ios_function_tables.h"
-static NSDictionary *function_tables = 0;
+#ifndef USE_IPHONE
+# import <OpenGL/glu.h>
#endif
-
/* 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.
*/
# define DO_GC_HACKERY
#endif
+/* Duplicated in xlockmoreI.h and XScreenSaverGLView.m. */
+extern void clear_gl_error (void);
+extern void check_gl_error (const char *type);
+
extern struct xscreensaver_function_table *xscreensaver_function_table;
/* Global variables used by the screen savers
# 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;
- (void) stopAndClose:(Bool)relaunch;
@end
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];
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_tables.h"!
+ // Depends on the auto-generated "ios-function-table.m" being up to date.
if (! function_tables)
- function_tables = [make_function_tables_dict() retain];
+ function_tables = [make_function_table_dict() retain];
NSValue *v = [function_tables objectForKey: name];
void *addr = v ? [v pointerValue] : 0;
# endif // USE_IPHONE
{ "-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: https://en.wikipedia.org/w/index.php?title=Special:NewPages&feed=rss",
// ".textProgram: ",
".grabDesktopImages: yes",
# ifndef USE_IPHONE
# 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);
progname = progclass = xsft->progclass;
next_frame_time = 0;
-
-# ifdef USE_BACKBUFFER
- [self createBackbuffer];
- [self initLayer];
+
+# ifndef USE_IPHONE
+ // When the view fills the screen and double buffering is enabled, OS X will
+ // use page flipping for a minor CPU/FPS boost. In windowed mode, double
+ // buffering reduces the frame rate to 1/2 the screen's refresh rate.
+ double_buffered_p = !isPreview;
+# endif
+
+# ifdef USE_IPHONE
+ 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;
+
+ [self setBackgroundColor:[NSColor blackColor]];
+
+ [[NSNotificationCenter defaultCenter]
+ addObserver:self
+ selector:@selector(didRotate:)
+ name:UIDeviceOrientationDidChangeNotification object:nil];
# endif // USE_IPHONE
return self;
}
-- (void) initLayer
+
+#ifdef USE_IPHONE
++ (Class) layerClass
{
-# ifndef USE_IPHONE
- [self setLayer: [CALayer layer]];
- [self setWantsLayer: YES];
-# endif
+ return [CAEAGLLayer class];
}
+#endif
- (id) initWithFrame:(NSRect)frame isPreview:(BOOL)p
- (void) dealloc
{
- NSAssert(![self isAnimating], @"still animating");
+ if ([self isAnimating])
+ [self stopAnimation];
NSAssert(!xdata, @"xdata not yet freed");
- if (xdpy)
- jwxyz_free_display (xdpy);
+ NSAssert(!xdpy, @"xdpy not yet freed");
-# ifdef USE_BACKBUFFER
- if (backbuffer)
- CGContextRelease (backbuffer);
+# ifdef USE_IPHONE
+ [[NSNotificationCenter defaultCenter] removeObserver:self];
# endif
+# ifdef USE_BACKBUFFER
+
+# ifdef BACKBUFFER_OPENGL
+ [ogl_ctx release];
+ // Releasing the OpenGL context should also free any OpenGL objects,
+ // including the backbuffer texture and frame/render/depthbuffers.
+# endif // BACKBUFFER_OPENGL
+
+ if (colorspace)
+ CGColorSpaceRelease (colorspace);
+
+# endif // USE_BACKBUFFER
+
[prefsReader release];
// xsft
{
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 / 240.0];
+
[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
+ {
+ CGSize b = self.bounds.size;
+ double s = [self hackedContentScaleFactor];
+ b.width *= s;
+ b.height *= s;
+ NSAssert (initial_bounds.width == b.width &&
+ initial_bounds.height == b.height,
+ @"bounds changed unexpectedly");
+ }
+
if (crash_timer)
[crash_timer invalidate];
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
-}
+#ifdef BACKBUFFER_OPENGL
+ CGSize new_backbuffer_size;
+
+ {
+# ifndef USE_IPHONE
+ if (!ogl_ctx) {
+
+ NSOpenGLPixelFormat *pixfmt = [self getGLPixelFormat];
+
+ NSAssert (pixfmt, @"unable to create NSOpenGLPixelFormat");
+
+ [pixfmt retain]; // #### ???
+
+ // Fun: On OS X 10.7, the second time an OpenGL context is created, after
+ // the preferences dialog is launched in SaverTester, the context only
+ // lasts until the first full GC. Then it turns black. Solution is to
+ // reuse the OpenGL context after this point.
+ ogl_ctx = [[NSOpenGLContext alloc] initWithFormat:pixfmt
+ shareContext:nil];
+
+ // Sync refreshes to the vertical blanking interval
+ GLint r = 1;
+ [ogl_ctx setValues:&r forParameter:NSOpenGLCPSwapInterval];
+// check_gl_error ("NSOpenGLCPSwapInterval"); // SEGV sometimes. Too early?
+ }
+
+ [ogl_ctx makeCurrentContext];
+ check_gl_error ("makeCurrentContext");
+
+ // NSOpenGLContext logs an 'invalid drawable' when this is called
+ // from initWithFrame.
+ [ogl_ctx setView:self];
+
+ // Clear frame buffer ASAP, else there are bits left over from other apps.
+ glClearColor (0, 0, 0, 1);
+ glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+// glFinish ();
+// glXSwapBuffers (mi->dpy, mi->window);
+
+
+ // Enable multi-threading, if possible. This runs most OpenGL commands
+ // and GPU management on a second CPU.
+ {
+# ifndef kCGLCEMPEngine
+# define kCGLCEMPEngine 313 // Added in MacOS 10.4.8 + XCode 2.4.
+# endif
+ CGLContextObj cctx = CGLGetCurrentContext();
+ CGLError err = CGLEnable (cctx, kCGLCEMPEngine);
+ if (err != kCGLNoError) {
+ NSLog (@"enabling multi-threaded OpenGL failed: %d", err);
+ }
+ }
+
+ new_backbuffer_size = NSSizeToCGSize ([self bounds].size);
+
+# else // USE_IPHONE
+ if (!ogl_ctx) {
+ CAEAGLLayer *eagl_layer = (CAEAGLLayer *) self.layer;
+ eagl_layer.opaque = TRUE;
+ eagl_layer.drawableProperties = [self getGLProperties];
+
+ // Without this, the GL frame buffer is half the screen resolution!
+ eagl_layer.contentsScale = [UIScreen mainScreen].scale;
+
+ ogl_ctx = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1];
+ }
+
+ [EAGLContext setCurrentContext: ogl_ctx];
+
+ CGSize screen_size = [[[UIScreen mainScreen] currentMode] size];
+ // iPad, simulator: 768x1024
+ // iPad, physical: 1024x768
+ if (screen_size.width > screen_size.height) {
+ CGFloat w = screen_size.width;
+ screen_size.width = screen_size.height;
+ screen_size.height = w;
+ }
+
+ if (gl_framebuffer) glDeleteFramebuffersOES (1, &gl_framebuffer);
+ if (gl_renderbuffer) glDeleteRenderbuffersOES (1, &gl_renderbuffer);
+
+ glGenFramebuffersOES (1, &gl_framebuffer);
+ glBindFramebufferOES (GL_FRAMEBUFFER_OES, gl_framebuffer);
+
+ glGenRenderbuffersOES (1, &gl_renderbuffer);
+ glBindRenderbufferOES (GL_RENDERBUFFER_OES, gl_renderbuffer);
+
+// redundant?
+// glRenderbufferStorageOES (GL_RENDERBUFFER_OES, GL_RGBA8_OES,
+// (int)size.width, (int)size.height);
+ [ogl_ctx renderbufferStorage:GL_RENDERBUFFER_OES
+ fromDrawable:(CAEAGLLayer*)self.layer];
+
+ glFramebufferRenderbufferOES (GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES,
+ GL_RENDERBUFFER_OES, gl_renderbuffer);
+
+ [self addExtraRenderbuffers:screen_size];
+
+ int err = glCheckFramebufferStatusOES (GL_FRAMEBUFFER_OES);
+ switch (err) {
+ case GL_FRAMEBUFFER_COMPLETE_OES:
+ break;
+ case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_OES:
+ NSAssert (0, @"framebuffer incomplete attachment");
+ break;
+ case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_OES:
+ NSAssert (0, @"framebuffer incomplete missing attachment");
+ break;
+ case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_OES:
+ NSAssert (0, @"framebuffer incomplete dimensions");
+ break;
+ case GL_FRAMEBUFFER_INCOMPLETE_FORMATS_OES:
+ NSAssert (0, @"framebuffer incomplete formats");
+ break;
+ case GL_FRAMEBUFFER_UNSUPPORTED_OES:
+ NSAssert (0, @"framebuffer unsupported");
+ break;
+/*
+ case GL_FRAMEBUFFER_UNDEFINED:
+ NSAssert (0, @"framebuffer undefined");
+ break;
+ case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER:
+ NSAssert (0, @"framebuffer incomplete draw buffer");
+ break;
+ case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER:
+ NSAssert (0, @"framebuffer incomplete read buffer");
+ break;
+ case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE:
+ NSAssert (0, @"framebuffer incomplete multisample");
+ break;
+ case GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS:
+ NSAssert (0, @"framebuffer incomplete layer targets");
+ break;
+ */
+ default:
+ NSAssert (0, @"framebuffer incomplete, unknown error 0x%04X", err);
+ break;
+ }
+
+ glViewport (0, 0, screen_size.width, screen_size.height);
+
+ new_backbuffer_size = initial_bounds;
+
+# endif // USE_IPHONE
+
+ check_gl_error ("startAnimation");
+
+// NSLog (@"%s / %s / %s\n", glGetString (GL_VENDOR),
+// glGetString (GL_RENDERER), glGetString (GL_VERSION));
+
+ [self enableBackbuffer:new_backbuffer_size];
+ }
+#endif // BACKBUFFER_OPENGL
+
+#ifdef USE_BACKBUFFER
+ [self createBackbuffer:new_backbuffer_size];
+#endif
+}
- (void)stopAnimation
{
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;
//
# ifdef USE_IPHONE
[UIApplication sharedApplication].idleTimerDisabled = NO;
+ [[UIApplication sharedApplication]
+ setStatusBarHidden:NO withAnimation:UIStatusBarAnimationNone];
# endif
-}
+ // Without this, the GL frame stays on screen when switching tabs
+ // in System Preferences.
+ // (Or perhaps it used to. It doesn't seem to matter on 10.9.)
+ //
+# ifndef USE_IPHONE
+ [NSOpenGLContext clearCurrentContext];
+# endif // !USE_IPHONE
-/* Hook for the XScreenSaverGLView subclass
- */
-- (void) prepareContext
-{
+ clear_gl_error(); // This hack is defunct, don't let this linger.
+
+ CGContextRelease (backbuffer);
+ backbuffer = nil;
+
+ if (backbuffer_len)
+ munmap (backbuffer_data, backbuffer_len);
+ backbuffer_data = NULL;
+ backbuffer_len = 0;
}
-/* Hook for the XScreenSaverGLView subclass
- */
-- (void) resizeContext
+
+// #### maybe this could/should just be on 'lockFocus' instead?
+- (void) prepareContext
{
+ if (ogl_ctx) {
+#ifdef USE_IPHONE
+ [EAGLContext setCurrentContext:ogl_ctx];
+#else // !USE_IPHONE
+ [ogl_ctx makeCurrentContext];
+// check_gl_error ("makeCurrentContext");
+#endif // !USE_IPHONE
+ }
}
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];
- CGRect frame = [self bounds];
- if (frame.size.width >= 1024 ||
- frame.size.height >= 1024)
- s = 1;
- return s;
+ NSSize ssize = [[[UIScreen mainScreen] currentMode] size];
+ NSSize bsize = [self bounds].size;
+
+ CGFloat
+ max_ssize = ssize.width > ssize.height ? ssize.width : ssize.height,
+ max_bsize = bsize.width > bsize.height ? bsize.width : bsize.height;
+
+ // Ratio of screen size in pixels to view size in points.
+ CGFloat s = max_ssize / max_bsize;
+
+ // Two constraints:
+
+ // 1. Don't exceed -- let's say 1280 pixels in either direction.
+ // (Otherwise the frame rate gets bad.)
+ CGFloat mag0 = ceil(max_ssize / 1280);
+
+ // 2. Don't let the pixel size get too small.
+ // (Otherwise pixels in IFS and similar are too fine.)
+ // So don't let the result be > 2 pixels per point.
+ CGFloat mag1 = ceil(s / 2);
+
+ // As of iPhone 6, mag0 is always >= mag1. This may not be true in the future.
+ // (desired scale factor) = s / (desired magnification factor)
+ return s / (mag0 > mag1 ? mag0 : mag1);
}
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);
+ rot_current_size.width = floor(rot_from.width +
+ rotation_ratio * (rot_to.width - rot_from.width));
+ rot_current_size.height = floor(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.
+ 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 hackedContentScaleFactor];
- if (((int) backbuffer_size.width != (int) (s * rot_current_size.width) ||
- (int) backbuffer_size.height != (int) (s * rot_current_size.height))
-/* && rotation_ratio == -1*/)
+ 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]; // Keep going
+ [self stopAndClose:NO]; // Keep going
}
- (void) handleException: (NSException *)e
#ifdef USE_BACKBUFFER
-/* Create a bitmap context into which we render everything.
- If the desired size has changed, re-created it.
- */
-- (void) createBackbuffer
+# ifndef USE_IPHONE
+
+struct gl_version
{
+ // iOS always uses OpenGL ES 1.1.
+ unsigned major;
+ unsigned minor;
+};
+
+static GLboolean
+gl_check_ver (const struct gl_version *caps,
+ unsigned gl_major,
+ unsigned gl_minor)
+{
+ return caps->major > gl_major ||
+ (caps->major == gl_major && caps->minor >= gl_minor);
+}
+
+# else
+
+static GLboolean
+gluCheckExtension (const GLubyte *ext_name, const GLubyte *ext_string)
+{
+ size_t ext_len = strlen ((const char *)ext_name);
+
+ for (;;) {
+ const GLubyte *found = (const GLubyte *)strstr ((const char *)ext_string,
+ (const char *)ext_name);
+ if (!found)
+ break;
+
+ char last_ch = found[ext_len];
+ if ((found == ext_string || found[-1] == ' ') &&
+ (last_ch == ' ' || !last_ch)) {
+ return GL_TRUE;
+ }
+
+ ext_string = found + ext_len;
+ }
+
+ return GL_FALSE;
+}
+
+# endif
+
+/* Called during startAnimation before the first call to createBackbuffer. */
+- (void) enableBackbuffer:(CGSize)new_backbuffer_size
+{
+# ifndef USE_IPHONE
+ struct gl_version version;
+
+ {
+ const char *version_str = (const char *)glGetString (GL_VERSION);
+
+ /* iPhone is always OpenGL ES 1.1. */
+ if (sscanf ((const char *)version_str, "%u.%u",
+ &version.major, &version.minor) < 2)
+ {
+ version.major = 1;
+ version.minor = 1;
+ }
+ }
+# endif
+
+ // The OpenGL extensions in use in here are pretty are pretty much ubiquitous
+ // on OS X, but it's still good form to check.
+ const GLubyte *extensions = glGetString (GL_EXTENSIONS);
+
+ glGenTextures (1, &backbuffer_texture);
+
+ // On really old systems, it would make sense to split the texture
+ // into subsections
+# ifndef USE_IPHONE
+ gl_texture_target = (gluCheckExtension ((const GLubyte *)
+ "GL_ARB_texture_rectangle",
+ extensions)
+ ? GL_TEXTURE_RECTANGLE_EXT : GL_TEXTURE_2D);
+# else
+ // OES_texture_npot also provides this, but iOS never provides it.
+ gl_limited_npot_p = gluCheckExtension ((const GLubyte *)
+ "GL_APPLE_texture_2D_limited_npot",
+ extensions);
+ gl_texture_target = GL_TEXTURE_2D;
+# endif
+
+ glBindTexture (gl_texture_target, &backbuffer_texture);
+ glTexParameteri (gl_texture_target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ // GL_LINEAR might make sense on Retina iPads.
+ glTexParameteri (gl_texture_target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameteri (gl_texture_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri (gl_texture_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+# ifndef USE_IPHONE
+ // There isn't much sense in supporting one of these if the other
+ // isn't present.
+ gl_apple_client_storage_p =
+ gluCheckExtension ((const GLubyte *)"GL_APPLE_client_storage",
+ extensions) &&
+ gluCheckExtension ((const GLubyte *)"GL_APPLE_texture_range", extensions);
+
+ if (gl_apple_client_storage_p) {
+ glTexParameteri (gl_texture_target, GL_TEXTURE_STORAGE_HINT_APPLE,
+ GL_STORAGE_SHARED_APPLE);
+ glPixelStorei (GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
+ }
+# endif
+
+ // If a video adapter suports BGRA textures, then that's probably as fast as
+ // you're gonna get for getting a texture onto the screen.
# ifdef USE_IPHONE
- double s = [self hackedContentScaleFactor];
- int new_w = s * rot_current_size.width;
- int new_h = s * rot_current_size.height;
+ gl_pixel_format =
+ gluCheckExtension ((const GLubyte *)"GL_APPLE_texture_format_BGRA8888",
+ extensions) ? GL_BGRA : GL_RGBA;
+ gl_pixel_type = GL_UNSIGNED_BYTE;
+ // See also OES_read_format.
# else
- int new_w = [self bounds].size.width;
- int new_h = [self bounds].size.height;
+ if (gl_check_ver (&version, 1, 2) ||
+ (gluCheckExtension ((const GLubyte *)"GL_EXT_bgra", extensions) &&
+ gluCheckExtension ((const GLubyte *)"GL_APPLE_packed_pixels",
+ extensions))) {
+ gl_pixel_format = GL_BGRA;
+ // Both Intel and PowerPC-era docs say to use GL_UNSIGNED_INT_8_8_8_8_REV.
+ gl_pixel_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+ } else {
+ gl_pixel_format = GL_RGBA;
+ gl_pixel_type = GL_UNSIGNED_BYTE;
+ }
+ // GL_ABGR_EXT/GL_UNSIGNED_BYTE is another possibilty that may have made more
+ // sense on PowerPC.
# endif
+ glEnable (gl_texture_target);
+ glEnableClientState (GL_VERTEX_ARRAY);
+ glEnableClientState (GL_TEXTURE_COORD_ARRAY);
+
+# ifdef USE_IPHONE
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity();
+ NSAssert (new_backbuffer_size.width != 0 && new_backbuffer_size.height != 0,
+ @"initial_bounds never got set");
+ // This is pretty similar to the glOrtho in createBackbuffer for OS X.
+ glOrthof (-new_backbuffer_size.width, new_backbuffer_size.width,
+ -new_backbuffer_size.height, new_backbuffer_size.height, -1, 1);
+# endif // USE_IPHONE
+
+ check_gl_error ("enableBackbuffer");
+}
+
+
+static GLsizei
+to_pow2 (size_t x)
+{
+ if (x <= 1)
+ return 1;
+
+ size_t mask = (size_t)-1;
+ unsigned bits = sizeof(x) * CHAR_BIT;
+ unsigned log2 = bits;
+
+ --x;
+ while (bits) {
+ if (!(x & mask)) {
+ log2 -= bits;
+ x <<= bits;
+ }
+
+ bits >>= 1;
+ mask <<= bits;
+ }
+
+ return 1 << log2;
+}
+
+
+/* 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_OPENGL
+ NSAssert ([NSOpenGLContext currentContext] ==
+ ogl_ctx, @"invalid GL context");
+
+ // This almost isn't necessary, except for the ugly aliasing artifacts.
+# ifndef USE_IPHONE
+ glViewport (0, 0, new_size.width, new_size.height);
+
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity();
+ // This is pretty similar to the glOrthof in enableBackbuffer for iPhone.
+ glOrtho (-new_size.width, new_size.width, -new_size.height, new_size.height,
+ -1, 1);
+# endif // !USE_IPHONE
+# endif // BACKBUFFER_OPENGL
+
+ NSWindow *window = [self window];
+
+ if (window && xdpy) {
+ [self lockFocus];
+
+# ifdef BACKBUFFER_OPENGL
+ // Was apparently faster until 10.9.
+ colorspace = CGColorSpaceCreateDeviceRGB ();
+# endif // BACKBUFFER_OPENGL
+
+ [self unlockFocus];
+ } else {
+ colorspace = CGColorSpaceCreateDeviceRGB();
+ }
+
if (backbuffer &&
- backbuffer_size.width == new_w &&
- backbuffer_size.height == new_h)
+ (int)backbuffer_size.width == (int)new_size.width &&
+ (int)backbuffer_size.height == (int)new_size.height)
return;
- CGSize osize = backbuffer_size;
CGContextRef ob = backbuffer;
+ void *odata = backbuffer_data;
+ size_t olen = backbuffer_len;
+
+ 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
+
+ /* OS X uses APPLE_client_storage and APPLE_texture_range, as described in
+ <https://developer.apple.com/library/mac/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_texturedata/opengl_texturedata.html>.
+
+ iOS uses bog-standard glTexImage2D (for now).
+
+ glMapBuffer is the standard way to get data from system RAM to video
+ memory asynchronously and without a memcpy, but support for
+ APPLE_client_storage is ubiquitous on OS X (not so for glMapBuffer),
+ and on iOS GL_PIXEL_UNPACK_BUFFER is only available on OpenGL ES 3
+ (iPhone 5S or newer). Plus, glMapBuffer doesn't work well with
+ CGBitmapContext: glMapBuffer can return a different pointer on each
+ call, but a CGBitmapContext doesn't allow its data pointer to be
+ changed -- and recreating the context for a new pointer can be
+ expensive (glyph caches get dumped, for instance).
+
+ glMapBufferRange has MAP_FLUSH_EXPLICIT_BIT and MAP_UNSYNCHRONIZED_BIT,
+ and these seem to allow mapping the buffer and leaving it where it is
+ in client address space while OpenGL works with the buffer, but it
+ requires OpenGL 3 Core profile on OS X (and ES 3 on iOS for
+ GL_PIXEL_UNPACK_BUFFER), so point goes to APPLE_client_storage.
+
+ AMD_pinned_buffer provides the same advantage as glMapBufferRange, but
+ Apple never implemented that one for OS X.
+ */
+
+ backbuffer_data = NULL;
+ gl_texture_w = (int)backbuffer_size.width;
+ gl_texture_h = (int)backbuffer_size.height;
+
+ NSAssert (gl_texture_target == GL_TEXTURE_2D
+# ifndef USE_IPHONE
+ || gl_texture_target == GL_TEXTURE_RECTANGLE_EXT
+# endif
+ , @"unexpected GL texture target");
+
+# ifndef USE_IPHONE
+ if (gl_texture_target != GL_TEXTURE_RECTANGLE_EXT)
+# else
+ if (!gl_limited_npot_p)
+# endif
+ {
+ gl_texture_w = to_pow2 (gl_texture_w);
+ gl_texture_h = to_pow2 (gl_texture_h);
+ }
+
+ size_t bytes_per_row = gl_texture_w * 4;
+
+# if defined(BACKBUFFER_OPENGL) && !defined(USE_IPHONE)
+ // APPLE_client_storage requires texture width to be aligned to 32 bytes, or
+ // it will fall back to a memcpy.
+ // https://developer.apple.com/library/mac/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_texturedata/opengl_texturedata.html#//apple_ref/doc/uid/TP40001987-CH407-SW24
+ bytes_per_row = (bytes_per_row + 31) & ~31;
+# endif // BACKBUFFER_OPENGL && !USE_IPHONE
+
+ backbuffer_len = bytes_per_row * gl_texture_h;
+ if (backbuffer_len) // mmap requires this to be non-zero.
+ backbuffer_data = mmap (NULL, backbuffer_len,
+ PROT_READ | PROT_WRITE, MAP_ANON | MAP_SHARED,
+ -1, 0);
+
+ BOOL alpha_first_p, order_little_p;
+
+ if (gl_pixel_format == GL_BGRA) {
+ alpha_first_p = YES;
+ order_little_p = YES;
+/*
+ } else if (gl_pixel_format == GL_ABGR_EXT) {
+ alpha_first_p = NO;
+ order_little_p = YES; */
+ } else {
+ NSAssert (gl_pixel_format == GL_RGBA, @"unknown GL pixel format");
+ alpha_first_p = NO;
+ order_little_p = NO;
+ }
+
+#ifdef USE_IPHONE
+ NSAssert (gl_pixel_type == GL_UNSIGNED_BYTE, @"unknown GL pixel type");
+#else
+ NSAssert (gl_pixel_type == GL_UNSIGNED_INT_8_8_8_8 ||
+ gl_pixel_type == GL_UNSIGNED_INT_8_8_8_8_REV ||
+ gl_pixel_type == GL_UNSIGNED_BYTE,
+ @"unknown GL pixel type");
+
+#if defined __LITTLE_ENDIAN__
+ const GLenum backwards_pixel_type = GL_UNSIGNED_INT_8_8_8_8;
+#elif defined __BIG_ENDIAN__
+ const GLenum backwards_pixel_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+#else
+# error Unknown byte order.
+#endif
+
+ if (gl_pixel_type == backwards_pixel_type)
+ order_little_p ^= YES;
+#endif
- 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);
- CGColorSpaceRelease (cs);
+ CGBitmapInfo bitmap_info =
+ (alpha_first_p ? kCGImageAlphaNoneSkipFirst : kCGImageAlphaNoneSkipLast) |
+ (order_little_p ? kCGBitmapByteOrder32Little : kCGBitmapByteOrder32Big);
+
+ backbuffer = CGBitmapContextCreate (backbuffer_data,
+ (int)backbuffer_size.width,
+ (int)backbuffer_size.height,
+ 8,
+ bytes_per_row,
+ colorspace,
+ bitmap_info);
NSAssert (backbuffer, @"unable to allocate back buffer");
// Clear it.
CGContextSetGrayFillColor (backbuffer, 0, 1);
CGContextFillRect (backbuffer, r);
+# if defined(BACKBUFFER_OPENGL) && !defined(USE_IPHONE)
+ if (gl_apple_client_storage_p)
+ glTextureRangeAPPLE (gl_texture_target, backbuffer_len, backbuffer_data);
+# endif // BACKBUFFER_OPENGL && !USE_IPHONE
+
if (ob) {
// Restore old bits, as much as possible, to the X11 upper left origin.
- CGRect rect;
+
+ CGRect rect; // pixels, not points
rect.origin.x = 0;
rect.origin.y = (backbuffer_size.height - osize.height);
- rect.size = osize;
+ rect.size = osize;
+
CGImageRef img = CGBitmapContextCreateImage (ob);
CGContextDrawImage (backbuffer, rect, img);
CGImageRelease (img);
CGContextRelease (ob);
+
+ if (olen)
+ // munmap should round len up to the nearest page.
+ munmap (odata, olen);
}
+
+ check_gl_error ("createBackbuffer");
}
+
+- (void) drawBackbuffer
+{
+# ifdef BACKBUFFER_OPENGL
+
+ NSAssert ([ogl_ctx isKindOfClass:[NSOpenGLContext class]],
+ @"ogl_ctx is not an NSOpenGLContext");
+
+ NSAssert (! (CGBitmapContextGetBytesPerRow (backbuffer) % 4),
+ @"improperly-aligned backbuffer");
+
+ // This gets width and height from the backbuffer in case
+ // APPLE_client_storage is in use. See the note in createBackbuffer.
+ // This still has to happen every frame even when APPLE_client_storage has
+ // the video adapter pulling texture data straight from
+ // XScreenSaverView-owned memory.
+ glTexImage2D (gl_texture_target, 0, GL_RGBA,
+ (GLsizei)(CGBitmapContextGetBytesPerRow (backbuffer) / 4),
+ gl_texture_h, 0, gl_pixel_format, gl_pixel_type,
+ backbuffer_data);
+
+ GLfloat vertices[4][2] =
+ {
+ {-backbuffer_size.width, backbuffer_size.height},
+ { backbuffer_size.width, backbuffer_size.height},
+ { backbuffer_size.width, -backbuffer_size.height},
+ {-backbuffer_size.width, -backbuffer_size.height}
+ };
+
+ GLfloat tex_coords[4][2];
+
+# ifndef USE_IPHONE
+ if (gl_texture_target == GL_TEXTURE_RECTANGLE_EXT) {
+ tex_coords[0][0] = 0;
+ tex_coords[0][1] = 0;
+ tex_coords[1][0] = backbuffer_size.width;
+ tex_coords[1][1] = 0;
+ tex_coords[2][0] = backbuffer_size.width;
+ tex_coords[2][1] = backbuffer_size.height;
+ tex_coords[3][0] = 0;
+ tex_coords[3][1] = backbuffer_size.height;
+ } else
+# endif // USE_IPHONE
+ {
+ GLfloat x = backbuffer_size.width / gl_texture_w;
+ GLfloat y = backbuffer_size.height / gl_texture_h;
+ tex_coords[0][0] = 0;
+ tex_coords[0][1] = 0;
+ tex_coords[1][0] = x;
+ tex_coords[1][1] = 0;
+ tex_coords[2][0] = x;
+ tex_coords[2][1] = y;
+ tex_coords[3][0] = 0;
+ tex_coords[3][1] = y;
+ }
+
+# ifdef USE_IPHONE
+ if (!ignore_rotation_p) {
+ glMatrixMode (GL_MODELVIEW);
+ glLoadIdentity();
+ glRotatef (rot_current_angle, 0, 0, -1);
+
+ if (rotation_ratio >= 0)
+ glClear (GL_COLOR_BUFFER_BIT);
+ }
+# endif // USE_IPHONE
+
+ glVertexPointer (2, GL_FLOAT, 0, vertices);
+ glTexCoordPointer (2, GL_FLOAT, 0, tex_coords);
+ glDrawArrays (GL_TRIANGLE_FAN, 0, 4);
+
+# if !defined __OPTIMIZE__ || TARGET_IPHONE_SIMULATOR
+ check_gl_error ("drawBackbuffer");
+# endif
+
+ // This can also happen near the beginning of render_x11.
+ [self flushBackbuffer];
+
+# endif // BACKBUFFER_OPENGL
+}
+
+
+- (void)flushBackbuffer
+{
+# ifndef USE_IPHONE
+ // The OpenGL pipeline is not automatically synchronized with the contents
+ // of the backbuffer, so without glFinish, OpenGL can start rendering from
+ // the backbuffer texture at the same time that JWXYZ is clearing and
+ // drawing the next frame in the backing store for the backbuffer texture.
+ glFinish();
+
+ if (double_buffered_p)
+ [ogl_ctx flushBuffer]; // despite name, this actually swaps
+# else
+ glBindRenderbufferOES (GL_RENDERBUFFER_OES, gl_renderbuffer);
+ [ogl_ctx presentRenderbuffer:GL_RENDERBUFFER_OES];
+# endif
+
+# if !defined __OPTIMIZE__ || TARGET_IPHONE_SIMULATOR
+ // glGetError waits for the OpenGL command pipe to flush, so skip it in
+ // release builds.
+ // OpenGL Programming Guide for Mac -> OpenGL Application Design
+ // Strategies -> Allow OpenGL to Manage Your Resources
+ // https://developer.apple.com/library/mac/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_designstrategies/opengl_designstrategies.html#//apple_ref/doc/uid/TP40001987-CH2-SW7
+ check_gl_error ("flushBackbuffer");
+# endif
+}
+
+
#endif // USE_BACKBUFFER
{
if (!xwindow) return; // early
+ CGSize new_size; // pixels, not points
+
# ifdef USE_BACKBUFFER
- [self createBackbuffer];
- jwxyz_window_resized (xdpy, xwindow,
- 0, 0,
- backbuffer_size.width, backbuffer_size.height,
+
+ [self prepareContext];
+
+# if defined(BACKBUFFER_OPENGL) && !defined(USE_IPHONE)
+ [ogl_ctx update];
+# endif // BACKBUFFER_OPENGL && !USE_IPHONE
+
+# 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
- 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,
+ 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;
}
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];
}
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. 240 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 1/240 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);
double now = tv.tv_sec + (tv.tv_usec / 1000000.0);
if (now < next_frame_time) return;
-
- [self prepareContext];
+
+ [self prepareContext]; // resize_x11 also calls this.
+ // [self flushBackbuffer];
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];
+
+# ifndef USE_IPHONE
+ if (ogl_ctx)
+ [ogl_ctx setView:self];
+# endif // !USE_IPHONE
+
NSRect r;
# ifndef USE_BACKBUFFER
r = [self bounds];
// And finally:
//
-# 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
- NSEnableScreenUpdates();
-# endif
+ if (fpst && xsft->fps_cb)
+ xsft->fps_cb (xdpy, xwindow, fpst, xdata);
gettimeofday (&tv, 0);
now = tv.tv_sec + (tv.tv_usec / 1000000.0);
next_frame_time = now + (delay / 1000000.0);
+ [self drawBackbuffer];
+
# ifdef USE_IPHONE // Allow savers on the iPhone to run full-tilt.
if (delay < [self animationTimeInterval])
[self setAnimationTimeInterval:(delay / 1000000.0)];
}
-/* 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];
+ jwxyz_flush_context(xdpy);
}
#else // USE_BACKBUFFER
[self render_x11];
-# ifdef USE_IPHONE
+# if defined USE_IPHONE && defined USE_BACKBUFFER
UIGraphicsPopContext();
# endif
-
-# ifdef USE_IPHONE
- // Then compute the transformations for rotation.
-
- // The rotation origin for layer.affineTransform is in the center already.
- CGAffineTransform t =
- CGAffineTransformMakeRotation (rot_current_angle / (180.0 / M_PI));
-
- // Correct the aspect ratio.
- CGRect frame = [self bounds];
- double s = [self hackedContentScaleFactor];
- t = CGAffineTransformScale(t,
- backbuffer_size.width / (s * frame.size.width),
- backbuffer_size.height / (s * frame.size.height));
-
- self.layer.affineTransform = t;
-# endif // USE_IPHONE
-
- // Then copy that bitmap to the screen, by just stuffing it into
- // the layer. The superclass drawRect method will handle the rest.
-
- CGImageRef img = CGBitmapContextCreateImage (backbuffer);
- self.layer.contents = (id)img;
- CGImageRelease (img);
}
-#endif // !USE_BACKBUFFER
+#endif // USE_BACKBUFFER
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
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));
case NSNextFunctionKey: k = XK_Next; break;
case NSBeginFunctionKey: k = XK_Begin; break;
case NSEndFunctionKey: k = XK_End; break;
+ case NSF1FunctionKey: k = XK_F1; break;
+ case NSF2FunctionKey: k = XK_F2; break;
+ case NSF3FunctionKey: k = XK_F3; break;
+ case NSF4FunctionKey: k = XK_F4; break;
+ case NSF5FunctionKey: k = XK_F5; break;
+ case NSF6FunctionKey: k = XK_F6; break;
+ case NSF7FunctionKey: k = XK_F7; break;
+ case NSF8FunctionKey: k = XK_F8; break;
+ case NSF9FunctionKey: k = XK_F9; break;
+ case NSF10FunctionKey: k = XK_F10; break;
+ case NSF11FunctionKey: k = XK_F11; break;
+ case NSF12FunctionKey: k = XK_F12; break;
default:
{
const char *s =
break;
}
default:
- NSAssert (0, @"unknown X11 event type: %d", type);
+ 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];
}
+
+- (NSOpenGLPixelFormat *) getGLPixelFormat
+{
+ NSAssert (prefsReader, @"no prefsReader for getGLPixelFormat");
+
+ NSOpenGLPixelFormatAttribute attrs[40];
+ int i = 0;
+ attrs[i++] = NSOpenGLPFAColorSize; attrs[i++] = 24;
+
+ if (double_buffered_p)
+ attrs[i++] = NSOpenGLPFADoubleBuffer;
+
+ attrs[i] = 0;
+
+ return [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs];
+}
+
#else // USE_IPHONE
-- (void) stopAndClose
+- (void) stopAndClose:(Bool)relaunch_p
{
if ([self isAnimating])
[self stopAnimation];
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];
- }
+// UIViewController *v = [[self window] rootViewController];
+// if ([v isKindOfClass: [UINavigationController class]]) {
+// UINavigationController *n = (UINavigationController *) v;
+// [[n topViewController] becomeFirstResponder];
+// }
+ [self resignFirstResponder];
- UIView *fader = [self superview]; // the "backgroundView" view is our parent
- [UIView animateWithDuration: 0.5
- animations:^{ fader.alpha = 0.0; }
- completion:^(BOOL finished) {
- [fader removeFromSuperview];
- fader.alpha = 1.0;
- }];
+ if (relaunch_p) { // Fake a shake on the SaverListController.
+ [_delegate didShake:self];
+ } else { // Not launching another, animate our return to the list.
+# if TARGET_IPHONE_SIMULATOR
+ NSLog (@"fading back to saver list");
+# endif
+ [_delegate wantsFadeOut:self];
+ }
}
-- (void) stopAndClose:(Bool)relaunch_p
+/* 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
{
- [self stopAndClose];
-
- if (relaunch_p) { // Fake a shake on the SaverListController.
- UIViewController *v = [[self window] rootViewController];
- if ([v isKindOfClass: [UINavigationController class]]) {
- UINavigationController *n = (UINavigationController *) v;
- [[n topViewController] motionEnded: UIEventSubtypeMotionShake
- withEvent: nil];
- }
- }
+ return YES;
}
/* Called after the device's orientation has changed.
+
+ Rotation is complicated: the UI, X11 and OpenGL work in 3 different ways.
+
+ 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 because using Core Animation on an EAGLContext
+ causes the OpenGL pipeline used on both X11 and GL savers to fall back on
+ software rendering and performance goes to hell.
+
+ 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 is
+ rendered onto a rotating OpenGL quad.
+
+ 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().
- 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.
-*/
+ 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];
- /* 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.
+ /* Sometimes UIDevice doesn't know the proper orientation, or the device is
+ face up/face down, so in those cases fall back to the status bar
+ orientation. The SaverViewController tries to set the status bar to the
+ proper orientation before it creates the XScreenSaverView; see
+ _storedOrientation in SaverViewController.
*/
- 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;
- }
+ if (current == UIDeviceOrientationUnknown ||
+ current == UIDeviceOrientationFaceUp ||
+ current == UIDeviceOrientationFaceDown) {
+ /* Mind the differences between UIInterfaceOrientation and
+ UIDeviceOrientaiton:
+ 1. UIInterfaceOrientation does not include FaceUp and FaceDown.
+ 2. LandscapeLeft and LandscapeRight are swapped between the two. But
+ converting between device and interface orientation doesn't need to
+ take this into account, because (from the UIInterfaceOrientation
+ description): "rotating the device requires rotating the content in
+ the opposite direction."
+ */
+ current = [UIApplication sharedApplication].statusBarOrientation;
}
/* On the iPad (but not iPhone 3GS, or the simulator) sometimes we get
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();
default: angle_to = 0; break;
}
- NSRect ff = [self bounds];
-
switch (orientation) {
case UIDeviceOrientationLandscapeRight: // from landscape
case UIDeviceOrientationLandscapeLeft:
- rot_from.width = ff.size.height;
- rot_from.height = ff.size.width;
+ 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 UIDeviceOrientationLandscapeRight: // to landscape
case UIDeviceOrientationLandscapeLeft:
- rot_to.width = ff.size.height;
- rot_to.height = ff.size.width;
+ 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 (@"%srotation begun: %s %d -> %s %d; %d x %d",
+ initted_p ? "" : "initial ",
+ orientname(orientation), (int) rot_current_angle,
+ orientname(new_orientation), (int) angle_to,
+ (int) rot_current_size.width, (int) rot_current_size.height);
+# endif
+
+ // Even though the status bar isn't on the screen, this still does two things:
+ // 1. It fixes the orientation of the iOS simulator.
+ // 2. It places the iOS notification center on the expected edge.
+ // 3. It prevents the notification center from causing rotation events.
+ [[UIApplication sharedApplication] setStatusBarOrientation:new_orientation
+ animated:NO];
+
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.
}
-/* I believe we can't use UIGestureRecognizer for tracking touches
- because UIPanGestureRecognizer doesn't give us enough detail in its
- callbacks.
+/* We distinguish between taps and drags.
- Currently we don't handle multi-touches (just the first touch) but
- I'm leaving this comment here for future reference:
+ - 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.
+
+ This means a saver cannot respond to a single-tap. Only a few try to.
+ */
- In the simulator, multi-touch sequences look like this:
+- (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];
+
+ [self setMultipleTouchEnabled:YES];
- touchesBegan [touchA, touchB]
- touchesEnd [touchA, 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];
+}
+
+
+/* Given a mouse (touch) coordinate in unrotated, unscaled view coordinates,
+ convert it to what X11 and OpenGL expect.
+
+ Getting this crap right is tricky, given the confusion of the various
+ scale factors, so here's a checklist that I think covers all of the X11
+ and OpenGL cases. For each of these: rotate to all 4 orientations;
+ ensure the mouse tracks properly to all 4 corners.
+
+ Test it in Xcode 6, because Xcode 5.0.2 can't run the iPhone6+ simulator.
+
+ Test hacks must cover:
+ X11 ignoreRotation = true
+ X11 ignoreRotation = false
+ OpenGL (rotation is handled manually, so they never ignoreRotation)
+
+ Test devices must cover:
+ contentScaleFactor = 1, hackedContentScaleFactor = 1 (iPad 2)
+ contentScaleFactor = 2, hackedContentScaleFactor = 1 (iPad Retina Air)
+ contentScaleFactor = 2, hackedContentScaleFactor = 2 (iPhone 5 5s 6 6+)
+
+ iPad 2: 768x1024 / 1 = 768x1024
+ iPad Air: 1536x2048 / 2 = 768x1024 (iPad Retina is identical)
+ iPhone 4s: 640x960 / 2 = 320x480
+ iPhone 5: 640x1136 / 2 = 320x568 (iPhone 5s and iPhone 6 are identical)
+ iPhone 6+: 640x1136 / 2 = 320x568 (nativeBounds 960x1704 nativeScale 3)
+
+ Tests:
+ iPad2 iPadAir iPhone4s iPhone5 iPhone6+
+ Attraction X yes Y Y Y Y Y
+ Fireworkx X no Y Y Y Y Y
+ Carousel GL yes Y Y Y Y Y
+ Voronoi GL no Y Y Y Y Y
+ */
+- (void) convertMouse:(int)rot x:(int*)x y:(int *)y
+{
+ int xx = *x, yy = *y;
- But on real devices, sometimes you get that, but sometimes you get:
+# if TARGET_IPHONE_SIMULATOR
+ {
+ XWindowAttributes xgwa;
+ XGetWindowAttributes (xdpy, xwindow, &xgwa);
+ NSLog (@"TOUCH %4d, %-4d in %4d x %-4d ig=%d rr=%d cs=%.0f hcs=%.0f\n",
+ *x, *y,
+ xgwa.width, xgwa.height,
+ ignore_rotation_p, [self reshapeRotatedWindow],
+ [self contentScaleFactor],
+ [self hackedContentScaleFactor]);
+ }
+# endif // TARGET_IPHONE_SIMULATOR
+
+ if (!ignore_rotation_p && [self reshapeRotatedWindow]) {
+ //
+ // For X11 hacks with ignoreRotation == false, we need to rotate the
+ // coordinates to match the unrotated X11 window. We do not do this
+ // for GL hacks, or for X11 hacks with ignoreRotation == true.
+ //
+ int w = [self frame].size.width;
+ int h = [self frame].size.height;
+ int swap;
+ 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;
+ }
+ }
- touchesBegan [touchA, touchB]
- touchesEnd [touchB]
- touchesEnd [touchA]
+ double s = [self hackedContentScaleFactor];
+ *x = xx * s;
+ *y = yy * s;
- Or even
+# if TARGET_IPHONE_SIMULATOR || !defined __OPTIMIZE__
+ {
+ XWindowAttributes xgwa;
+ XGetWindowAttributes (xdpy, xwindow, &xgwa);
+ NSLog (@"touch %4d, %-4d in %4d x %-4d ig=%d rr=%d cs=%.0f hcs=%.0f\n",
+ *x, *y,
+ xgwa.width, xgwa.height,
+ ignore_rotation_p, [self reshapeRotatedWindow],
+ [self contentScaleFactor],
+ [self hackedContentScaleFactor]);
+ if (*x < 0 || *y < 0 || *x > xgwa.width || *y > xgwa.height)
+ abort();
+ }
+# endif // TARGET_IPHONE_SIMULATOR
+}
- 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.
+/* Single click exits saver.
*/
-
-- (void) rotateMouse:(int)rot x:(int*)x y:(int *)y w:(int)w h:(int)h
+- (void) handleTap
{
- CGRect frame = [self bounds]; // Correct aspect ratio and scale.
- double s = [self hackedContentScaleFactor];
- *x *= (backbuffer_size.width / frame.size.width) / s;
- *y *= (backbuffer_size.height / frame.size.height) / s;
+ [self stopAndClose:NO];
}
-#if 0 // AudioToolbox/AudioToolbox.h
-- (void) beep
+/* Double click sends Space KeyPress.
+ */
+- (void) handleDoubleTap
{
- // 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
+ 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];
}
-#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.
+/* Drag with one finger down: send MotionNotify.
*/
-
-- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
+- (void) handlePan:(UIGestureRecognizer *)sender
{
- tap_time = 0;
+ if (!xsft->event_cb || !xwindow) 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 = 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.
- }
+ 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];
}
-- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
+/* Hold one finger down: assume we're about to start dragging.
+ Treat the same as Pan.
+ */
+- (void) handleLongPress:(UIGestureRecognizer *)sender
{
- 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];
- 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.
- }
- }
+ [self handlePan:sender];
}
-- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
+
+/* Drag with 2 fingers down: send arrow keys.
+ */
+- (void) handlePan2:(UIPanGestureRecognizer *)sender
{
- 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.
- }
- }
+ 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];
}
}
}
+- (NSDictionary *)getGLProperties
+{
+ return [NSDictionary dictionaryWithObjectsAndKeys:
+ kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat,
+ nil];
+}
+
+- (void)addExtraRenderbuffers:(CGSize)size
+{
+ // No extra renderbuffers are needed for 2D screenhacks.
+}
#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...
projects / xscreensaver / blobdiff