341 lines
8.2 KiB
Objective-C

//
// AppDelegate.m
// RootlessForEmulators
//
// Created by Uli Kusterer on 08/03/15.
// Copyright (c) 2015 Uli Kusterer. All rights reserved.
//
#import "AppDelegate.h"
#import "RootlessForEmulators.h"
@interface AppDelegate ()
@property (nonatomic, strong) NSImage* backBuffer;
@property (strong) NSMutableArray* windows;
@property (strong) NSMutableArray* events;
@end
@interface RootlessWindowContentView : NSView
@end
@implementation RootlessWindowContentView
-(void) drawRect:(NSRect)dirtyRect
{
NSImage *bb = [(id)NSApplication.sharedApplication.delegate backBuffer];
NSRect myBox = [self.window contentRectForFrameRect: self.window.frame];
[bb drawAtPoint: NSZeroPoint fromRect: myBox operation: NSCompositeCopy fraction: 1.0];
}
-(void) mouseDown:(NSEvent *)theEvent
{
[(id)NSApplication.sharedApplication.delegate addEvent: theEvent];
}
-(void) mouseDragged:(NSEvent *)theEvent
{
[(id)NSApplication.sharedApplication.delegate addEvent: theEvent];
}
-(void) mouseUp:(NSEvent *)theEvent
{
[(id)NSApplication.sharedApplication.delegate addEvent: theEvent];
}
-(void) rightMouseDown:(NSEvent *)theEvent
{
[(id)NSApplication.sharedApplication.delegate addEvent: theEvent];
}
-(void) rightMouseDragged:(NSEvent *)theEvent
{
[(id)NSApplication.sharedApplication.delegate addEvent: theEvent];
}
-(void) rightMouseUp:(NSEvent *)theEvent
{
[(id)NSApplication.sharedApplication.delegate addEvent: theEvent];
}
-(void) otherMouseDown:(NSEvent *)theEvent
{
[(id)NSApplication.sharedApplication.delegate addEvent: theEvent];
}
-(void) otherMouseDragged:(NSEvent *)theEvent
{
[(id)NSApplication.sharedApplication.delegate addEvent: theEvent];
}
-(void) otherMouseUp:(NSEvent *)theEvent
{
[(id)NSApplication.sharedApplication.delegate addEvent: theEvent];
}
-(void) windowDidMove: (NSNotification*)notif
{
[self setNeedsDisplay: YES];
}
-(void) viewDidMoveToWindow
{
[[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(windowDidMove:) name: NSWindowDidMoveNotification object: self.window];
}
@end
@interface RootlessWindowAndFrame : NSObject
{
NSRect mFrame;
NSWindow* mWindow;
}
-(id) initWithWindow: (NSWindow*)wd frame: (NSRect)box;
-(NSRect) frame;
-(NSWindow*) window;
-(void) setWindow: (NSWindow*)wd;
@end
@implementation RootlessWindowAndFrame
-(id) initWithWindow: (NSWindow*)wd frame: (NSRect)box
{
self = [super init];
if( self )
{
mWindow = wd;
mFrame = box;
}
return self;
}
-(NSRect) frame
{
return mFrame;
}
-(NSWindow*) window
{
return mWindow;
}
-(void) setWindow: (NSWindow*)wd
{
mWindow = wd;
}
@end
@implementation AppDelegate
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
NSRect backBufferBox = { NSZeroPoint, [NSScreen.screens.firstObject frame].size };
self.backBuffer = [[NSImage alloc] initWithSize: backBufferBox.size];
[self.backBuffer lockFocus];
[NSColor.blackColor set];
NSRectFillUsingOperation( backBufferBox, NSCompositeCopy );
[self.backBuffer unlockFocus];
self.windows = [[NSMutableArray alloc] init];
self.events = [[NSMutableArray alloc] init];
[NSApplication.sharedApplication setPresentationOptions: NSApplicationPresentationAutoHideDock | NSApplicationPresentationAutoHideMenuBar];
[NSThread detachNewThreadSelector: @selector(emulatorMain) toTarget: self withObject: nil];
}
- (void)applicationWillTerminate:(NSNotification *)aNotification
{
// Insert code here to tear down your application
}
-(void) emulatorMain
{
NSArray* args = [NSProcessInfo processInfo].arguments;
NSInteger numArgs = args.count;
char* emulatorArgs[numArgs];
// First build a buffer with all C strings in it and
// fill the array with their *offsets* in the data as
// the pointers could change every time we append more data.
NSMutableData* stringData = [NSMutableData data];
NSInteger idx = 0;
NSInteger offset = 0;
for( NSString* currArg in args )
{
uint8_t zeroByte = 0;
emulatorArgs[idx] = (char*)offset;
NSData* currCStr = [currArg dataUsingEncoding: NSUTF8StringEncoding];
[stringData appendBytes: currCStr.bytes length: currCStr.length];
[stringData appendBytes: &zeroByte length: 1];
offset += currCStr.length +1;
idx++;
}
// Now that the strings array is stable, turn the offsets into pointers:
char* firstPointer = (char*)[stringData bytes];
for( int x = 0; x < numArgs; x++ )
{
emulatorArgs[x] += (intptr_t)firstPointer;
}
EmulatorMain( numArgs, emulatorArgs );
[NSApplication.sharedApplication performSelectorOnMainThread: @selector(terminate:) withObject: nil waitUntilDone: NO];
}
-(void) addWindow: (RootlessWindowAndFrame*)waf
{
NSWindow* theWindow = [[NSWindow alloc] initWithContentRect: waf.frame styleMask: NSBorderlessWindowMask backing: NSBackingStoreBuffered defer: NO];
theWindow.releasedWhenClosed = NO;
theWindow.opaque = NO;
[theWindow setContentView: [[RootlessWindowContentView alloc] initWithFrame: NSMakeRect(0, 0, 100, 100)]];
[self.windows addObject: theWindow];
[theWindow makeKeyAndOrderFront: self];
waf.window = theWindow;
}
-(void) moveWindow: (RootlessWindowAndFrame*)waf
{
[waf.window setFrame: [waf.window frameRectForContentRect: waf.frame] display: YES];
}
-(void) removeWindow: (NSWindow*)theWindow
{
[theWindow close];
[self.windows removeObject: theWindow];
}
-(void) setBackBuffer: (NSImage *)backBuffer
{
self->_backBuffer = backBuffer;
for( NSWindow* aWindow in self.windows )
[aWindow.contentView setNeedsDisplay: YES];
}
-(void) addEvent: (NSEvent*)evt
{
@synchronized( self )
{
[self.events addObject: evt];
}
}
-(NSEvent*) dequeueNextEvent
{
NSEvent* evt = nil;
@synchronized( self )
{
evt = self.events.firstObject;
if( evt )
[self.events removeObjectAtIndex: 0];
}
return evt;
}
@end
RootlessWindow CreateWindowWithRect( int x, int y, int width, int height )
{
RootlessWindowAndFrame * waf = [[RootlessWindowAndFrame alloc] initWithWindow: nil frame: NSMakeRect(x, y, width, height)];
[(id)NSApplication.sharedApplication.delegate performSelectorOnMainThread: @selector(addWindow:) withObject: waf waitUntilDone: YES];
return (__bridge RootlessWindow)waf.window;
}
void SetWindowRect( RootlessWindow win, int x, int y, int width, int height )
{
RootlessWindowAndFrame * waf = [[RootlessWindowAndFrame alloc] initWithWindow: (__bridge NSWindow*)win frame: NSMakeRect(x, y, width, height)];
[(id)NSApplication.sharedApplication.delegate performSelectorOnMainThread: @selector(moveWindow:) withObject: waf waitUntilDone: YES];
}
void FreeWindow( RootlessWindow win )
{
[(id)NSApplication.sharedApplication.delegate performSelectorOnMainThread: @selector(removeWindow:) withObject: (__bridge NSWindow*)win waitUntilDone: YES];
}
void BackBufferChanged( void* data, int rowBytes, int width, int height )
{
NSImage* newBackBuffer = [[NSImage alloc] initWithSize: NSMakeSize(width, height)];
unsigned char* pixels[4] = { data, NULL, NULL, NULL };
NSBitmapImageRep* bir = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes: pixels pixelsWide:width pixelsHigh: height bitsPerSample: 8 samplesPerPixel: 4 hasAlpha: YES isPlanar: NO colorSpaceName:NSCalibratedRGBColorSpace bitmapFormat: NS32BitLittleEndianBitmapFormat bytesPerRow: rowBytes bitsPerPixel: 32];
[newBackBuffer addRepresentation: bir];
[(id)NSApplication.sharedApplication.delegate performSelectorOnMainThread: @selector(setBackBuffer:) withObject: newBackBuffer waitUntilDone: YES];
}
bool QueryInputDevices( int *outButtonDown, int *outX, int *outY )
{
NSEvent* evt = [(id)NSApplication.sharedApplication.delegate dequeueNextEvent];
if( !evt )
{
return false;
}
if( evt.type == NSLeftMouseDown || evt.type == NSLeftMouseUp || evt.type == NSLeftMouseDragged
|| evt.type == NSRightMouseDown || evt.type == NSRightMouseUp || evt.type == NSRightMouseDragged
|| evt.type == NSOtherMouseDown || evt.type == NSOtherMouseUp || evt.type == NSOtherMouseDragged )
{
*outButtonDown = (int)evt.buttonNumber;
NSPoint pos = evt.locationInWindow;
pos.x += evt.window.frame.origin.x;
pos.y += evt.window.frame.origin.y;
*outX = pos.x;
*outY = pos.y;
}
return true;
}
void GetScreenSize( int *outWidth, int *outHeight )
{
NSScreen* currScreen = NSScreen.screens.firstObject;
*outWidth = currScreen.frame.size.width;
*outHeight = currScreen.frame.size.height;
}