cirrdevicemacosx.mm

game engine, which is useful for everyone who is interested in it. I hope you can enjoy it.

// Copyright (C) 2005 Etienne Petitjean
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in Irrlicht.h

#ifdef MACOSX

#import <Cocoa/Cocoa.h>
#import <OpenGL/gl.h>

#include "CIrrDeviceMacOSX.h"
#include "IEventReceiver.h"
#include "irrList.h"
#include "os.h"
#include "CTimer.h"
#include "irrString.h"
#include "Keycodes.h"
#include <stdio.h>
#include <sys/utsname.h>
#include "COSOperator.h"
#include "irrlicht.h"
#import <wchar.h>
#import "AppDelegate.h"

namespace irr
{
	namespace video
	{
		IVideoDriver* createOpenGLDriver(const core::dimension2d<s32>& screenSize, CIrrDeviceMacOSX *device, bool fullscreen, bool stencilBuffer, io::IFileSystem* io, bool vsync, bool antiAlias);
	}
} // end namespace irr

static	bool	firstLaunch = true;

namespace irr
{
//! constructor
CIrrDeviceMacOSX::CIrrDeviceMacOSX(video::E_DRIVER_TYPE driverType, 
				 const core::dimension2d<s32>& windowSize,
				 u32 bits, bool fullscreen,
				 bool sbuffer, bool vsync, 
				 bool antiAlias, IEventReceiver* receiver,
				 const char* version)
 : CIrrDeviceStub(version, receiver), DriverType(driverType), stencilbuffer(sbuffer)
{
	struct	utsname	name;
	NSString		*path;
	
	#ifdef _DEBUG
	setDebugName("CIrrDeviceMacOSX");
	#endif

	if (firstLaunch)
	{
		firstLaunch = false;

		[[NSAutoreleasePool alloc] init];
		[NSApplication sharedApplication];
		[NSApp setDelegate:[[[AppDelegate alloc] initWithDevice:this] autorelease]];
		[NSBundle loadNibNamed:@"MainMenu" owner:[NSApp delegate]];
		[NSApp finishLaunching];

		path = [[[NSBundle mainBundle] bundlePath] stringByDeletingLastPathComponent];
		chdir([path cString]);
	}
	
	_window = NULL;
	_active = true;
	_oglcontext = NULL;
	_cglcontext = NULL;

	uname(&name);
	Operator = new COSOperator(name.version);
	os::Printer::log(name.version,ELL_INFORMATION);

	initKeycodes();
	if (driverType != video::EDT_NULL) createWindow(windowSize,bits,fullscreen,vsync,stencilbuffer);
	CursorControl = new CCursorControl(windowSize, this);
	createDriver(driverType,windowSize,bits,fullscreen,stencilbuffer, antiAlias);
	createGUIAndScene();
}

CIrrDeviceMacOSX::~CIrrDeviceMacOSX()
{
	closeDevice();
}

void	CIrrDeviceMacOSX::closeDevice()
{
	if (_window != NULL)
	{
		[_window setIsVisible:FALSE];

		if (_oglcontext != NULL)
		{
			[_oglcontext clearDrawable];
			[_oglcontext release];
			_oglcontext = NULL;
		}

		[_window setReleasedWhenClosed:TRUE];
		[_window release];
		_window = NULL;
	}
	else
	{
		if (_cglcontext != NULL)
		{
			CGLSetCurrentContext(NULL);
			CGLClearDrawable(_cglcontext);
			CGLDestroyContext(_cglcontext);
		}
	}		

	_active = FALSE;
	_cglcontext = NULL;
}

bool	CIrrDeviceMacOSX::createWindow(const irr::core::dimension2d<irr::s32>& windowSize, irr::u32 bits, bool fullscreen, bool vsync, bool stencilBuffer)
{
	int				index;
	CGDisplayErr			error;
	bool				result;
	NSOpenGLPixelFormat		*format;
	CGDirectDisplayID		display;
	CGLPixelFormatObj		pixelFormat;
	CGRect				displayRect;
	CGLPixelFormatAttribute		fullattribs[32];
	NSOpenGLPixelFormatAttribute	windowattribs[32];
	CFDictionaryRef			displaymode,olddisplaymode;
	long				numPixelFormats,newSwapInterval;
	
	result = false;
	display = CGMainDisplayID();
	_screenWidth = (int) CGDisplayPixelsWide(display);
	_screenHeight = (int) CGDisplayPixelsHigh(display);

	if (!fullscreen)
	{
		_window = [[NSWindow alloc] initWithContentRect:NSMakeRect(0,0,windowSize.Width,windowSize.Height) styleMask:NSTitledWindowMask+NSClosableWindowMask+NSResizableWindowMask backing:NSBackingStoreBuffered defer:FALSE];
		if (_window != NULL)
		{
			index = 0;
			windowattribs[index++] = NSOpenGLPFANoRecovery;	
			windowattribs[index++] = NSOpenGLPFADoubleBuffer;
			windowattribs[index++] = NSOpenGLPFAAccelerated;
			windowattribs[index++] = NSOpenGLPFADepthSize;
			windowattribs[index++] = (NSOpenGLPixelFormatAttribute)16;
			windowattribs[index++] = NSOpenGLPFAColorSize;
			windowattribs[index++] = (NSOpenGLPixelFormatAttribute)bits;

			if (stencilBuffer)
			{
				windowattribs[index++] = NSOpenGLPFAStencilSize;
				windowattribs[index++] = (NSOpenGLPixelFormatAttribute)1;
			}
			
			windowattribs[index++] = (NSOpenGLPixelFormatAttribute)NULL;

			format = [[NSOpenGLPixelFormat alloc] initWithAttributes:windowattribs];
			if (format != NULL)
			{
				_oglcontext = [[NSOpenGLContext alloc] initWithFormat:format shareContext:NULL];
				[format release];
			}
			
			if (_oglcontext != NULL)
			{
				[_window center];
				[_window setDelegate:[NSApp delegate]];
				[_oglcontext setView:[_window contentView]];
				[_window setAcceptsMouseMovedEvents:TRUE];
				[_window setIsVisible:TRUE];
				[_window makeKeyAndOrderFront:nil];

				_cglcontext = (CGLContextObj) [_oglcontext CGLContextObj];
				_width = windowSize.Width;
				_height = windowSize.Height;
				result = true;
			}
		}
	}
	else
	{
		displaymode = CGDisplayBestModeForParameters(display,bits,windowSize.Width,windowSize.Height,NULL);
		if (displaymode != NULL)
		{
			olddisplaymode = CGDisplayCurrentMode(display);
			error = CGCaptureAllDisplays();
			if (error == CGDisplayNoErr)
			{
				error = CGDisplaySwitchToMode(display,displaymode);
				if (error == CGDisplayNoErr)
				{
					pixelFormat = NULL;
					numPixelFormats = 0;

					index = 0;
					fullattribs[index++] = kCGLPFAFullScreen;	
					fullattribs[index++] = kCGLPFADisplayMask;
					fullattribs[index++] = (CGLPixelFormatAttribute)CGDisplayIDToOpenGLDisplayMask(display);
					fullattribs[index++] = kCGLPFADoubleBuffer;
					fullattribs[index++] = kCGLPFAAccelerated;
					fullattribs[index++] = kCGLPFADepthSize;
					fullattribs[index++] = (CGLPixelFormatAttribute)16;
					fullattribs[index++] = kCGLPFAColorSize;
					fullattribs[index++] = (CGLPixelFormatAttribute)bits;

					if (stencilBuffer)
					{
						fullattribs[index++] = kCGLPFAStencilSize;
						fullattribs[index++] = (CGLPixelFormatAttribute)1;
					}
					
					fullattribs[index++] = (CGLPixelFormatAttribute)NULL;
					CGLChoosePixelFormat(fullattribs,&pixelFormat,&numPixelFormats);
 
					if (pixelFormat != NULL)
					{
						CGLCreateContext(pixelFormat,NULL,&_cglcontext);
						CGLDestroyPixelFormat(pixelFormat);
					}
				
					if (_cglcontext != NULL)
					{
						CGLSetFullScreen(_cglcontext);
						displayRect = CGDisplayBounds(display);
						_width = (int)displayRect.size.width;
						_height = (int)displayRect.size.height;
						result = true;
					}
				}
			}
		}
	}

	if (result)
	{
		CGLSetCurrentContext(_cglcontext);
		newSwapInterval = (vsync) ? 1 : 0;
		CGLSetParameter(_cglcontext,kCGLCPSwapInterval,&newSwapInterval);
		glViewport(0,0,_width,_height);
		glMatrixMode(GL_PROJECTION);
		glLoadIdentity();
		glMatrixMode(GL_MODELVIEW);
		glLoadIdentity();
	}

	return (result);
}

void	CIrrDeviceMacOSX::setResize(int width,int height)
{
	_width = width;
	_height = height;
	[_oglcontext update];
	getVideoDriver()->OnResize(core::dimension2d<s32>(width, height));
}

void	CIrrDeviceMacOSX::createDriver(video::E_DRIVER_TYPE driverType,const core::dimension2d<s32>& windowSize,u32 bits,bool fullscreen,bool stencilbuffer, bool antiAlias)
{
	switch (driverType)
	{
		case video::EDT_SOFTWARE:
			VideoDriver = video::createSoftwareDriver(windowSize, fullscreen, FileSystem, this);
			break;
		
		case video::EDT_SOFTWARE2:
			VideoDriver = video::createSoftwareDriver2(windowSize, fullscreen, FileSystem, this);
			break;

		case video::EDT_OPENGL:
		#ifdef _IRR_COMPILE_WITH_OPENGL_
			VideoDriver = video::createOpenGLDriver(windowSize, this, fullscreen, stencilbuffer, FileSystem, false, antiAlias);
		#endif
			break;

		case video::EDT_NULL:
			VideoDriver = video::createNullDriver(FileSystem, windowSize);
			break;

		default:
			os::Printer::log("This driver is not available in Linux. Trying OpenGL.", ELL_WARNING);
	}
}

void	CIrrDeviceMacOSX::flush()
{
	if (_cglcontext != NULL)
	{
		glFinish();
		CGLFlushDrawable(_cglcontext);
	}
}