mirror of https://github.com/stella-emu/stella.git
Added Mac Specific Classes
git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@446 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
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markgrebe
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//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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//
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// Copyright (c) 1995-1999 by Bradford W. Mott
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//
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// See the file "license" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//
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// $Id: OSystemMACOSX.cxx,v 1.1 2005-05-28 01:28:36 markgrebe Exp $
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//============================================================================
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#include <cstdlib>
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#include <sstream>
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#include <fstream>
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#include <string>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "bspf.hxx"
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#include "OSystem.hxx"
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#include "OSystemMACOSX.hxx"
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#ifdef HAVE_GETTIMEOFDAY
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#include <time.h>
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#include <sys/time.h>
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#endif
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extern "C" {
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void macOpenConsole(char *romname);
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}
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// Pointer to the main parent osystem object or the null pointer
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extern OSystem* theOSystem;
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static double Atari_time(void);
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// Allow the SDL main object to pass request to open cartridges from
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// the OS into the application.
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void macOpenConsole(char *romname)
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{
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theOSystem->createConsole(romname);
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}
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/**
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Each derived class is responsible for calling the following methods
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in its constructor:
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setBaseDir()
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setStateDir()
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setPropertiesFiles()
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setConfigFiles()
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setCacheFile()
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See OSystem.hxx for a further explanation
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*/
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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OSystemMACOSX::OSystemMACOSX()
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{
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// First set variables that the OSystem needs
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string basedir = string(getenv("HOME")) + "/.stella";
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setBaseDir(basedir);
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string statedir = basedir + "/state";
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setStateDir(statedir);
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string userPropertiesFile = basedir + "/stella.pro";
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string systemPropertiesFile = "/etc/stella.pro";
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setPropertiesFiles(userPropertiesFile, systemPropertiesFile);
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string userConfigFile = basedir + "/stellarc";
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string systemConfigFile = "/etc/stellarc";
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setConfigFiles(userConfigFile, systemConfigFile);
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string cacheFile = basedir + "/stella.cache";
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setCacheFile(cacheFile);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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OSystemMACOSX::~OSystemMACOSX()
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{
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void OSystemMACOSX::mainLoop()
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{
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#if 0
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double lasttime = Atari_time();
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double lastcurtime = 0;
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double curtime, delaytime;
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double timePerFrame = 1.0 / 60.0;
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// Main game loop
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for(;;)
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{
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// Exit if the user wants to quit
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if(myEventHandler->doQuit())
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break;
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myEventHandler->poll();
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myFrameBuffer->update();
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if (timePerFrame > 0.0)
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{
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curtime = Atari_time();
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delaytime = lasttime + timePerFrame - curtime;
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if (delaytime > 0)
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usleep((int) (delaytime * 1e6));
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curtime = Atari_time();
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lastcurtime = curtime;
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lasttime += timePerFrame;
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if ((lasttime + timePerFrame) < curtime)
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lasttime = curtime;
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}
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}
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#else
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// These variables are common to both timing options
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// and are needed to calculate the overall frames per second.
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uInt32 frameTime = 0, numberOfFrames = 0;
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// Set up less accurate timing stuff
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uInt32 startTime, virtualTime, currentTime;
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// Set the base for the timers
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virtualTime = getTicks();
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frameTime = 0;
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// Main game loop
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for(;;)
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{
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// Exit if the user wants to quit
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if(myEventHandler->doQuit())
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break;
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startTime = getTicks();
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myEventHandler->poll(startTime);
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myFrameBuffer->update();
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currentTime = getTicks();
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virtualTime += myTimePerFrame;
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if(currentTime < virtualTime)
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{
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SDL_Delay((virtualTime - currentTime)/1000);
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}
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currentTime = getTicks() - startTime;
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frameTime += currentTime;
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++numberOfFrames;
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}
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#endif
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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uInt32 OSystemMACOSX::getTicks()
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{
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#ifdef HAVE_GETTIMEOFDAY
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timeval now;
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gettimeofday(&now, 0);
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return (uInt32) (now.tv_sec * 1000000 + now.tv_usec);
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#else
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return (uInt32) SDL_GetTicks() * 1000;
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#endif
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}
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static double Atari_time(void)
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{
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struct timeval tp;
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gettimeofday(&tp, NULL);
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return tp.tv_sec + 1e-6 * tp.tv_usec;
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}
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@ -0,0 +1,61 @@
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//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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//
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// Copyright (c) 1995-1999 by Bradford W. Mott
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//
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// See the file "license" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//
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// $Id: OSystemMACOSX.hxx,v 1.1 2005-05-28 01:28:36 markgrebe Exp $
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//============================================================================
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#ifndef OSYSTEM_MACOSX_HXX
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#define OSYSTEM_MACOSX_HXX
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#include "bspf.hxx"
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/**
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This class defines UNIX-like OS's (Linux) system specific settings.
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@author Mark Grebe
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@version $Id: OSystemMACOSX.hxx,v 1.1 2005-05-28 01:28:36 markgrebe Exp $
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*/
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class OSystemMACOSX : public OSystem
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{
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public:
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/**
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Create a new UNIX-specific operating system object
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*/
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OSystemMACOSX();
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/**
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Destructor
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*/
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virtual ~OSystemMACOSX();
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public:
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/**
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This method runs the main loop. Since different platforms
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may use different timing methods and/or algorithms, this method has
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been abstracted to each platform.
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*/
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virtual void mainLoop();
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/**
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This method returns number of ticks in microseconds.
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@return Current time in microseconds.
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*/
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virtual uInt32 getTicks();
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};
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#endif
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