mirror of
https://github.com/dborth/fceugx.git
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410 lines
8.2 KiB
C++
410 lines
8.2 KiB
C++
/****************************************************************************
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* FCE Ultra
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* Nintendo Wii/Gamecube Port
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*
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* Tantric 2008-2009
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*
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* fceugx.cpp
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*
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* This file controls overall program flow. Most things start and end here!
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****************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <gctypes.h>
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#include <ogc/system.h>
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#include <fat.h>
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#include <wiiuse/wpad.h>
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#include <malloc.h>
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#include <sys/iosupport.h>
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#include "fceugx.h"
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#include "fceuconfig.h"
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#include "fceuload.h"
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#include "fceustate.h"
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#include "fceuram.h"
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#include "fceusupport.h"
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#include "menu.h"
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#include "preferences.h"
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#include "fileop.h"
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#include "filebrowser.h"
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#include "networkop.h"
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#include "gcaudio.h"
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#include "gcvideo.h"
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#include "pad.h"
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#include "filelist.h"
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#include "gui/gui.h"
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#ifdef HW_RVL
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#include <di/di.h>
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#endif
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#include "FreeTypeGX.h"
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#include "types.h"
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void FCEUD_Update(uint8 *XBuf, int32 *Buffer, int Count);
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extern "C" {
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extern void __exception_setreload(int t);
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}
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static int fskipc = 0;
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static int fskip = 0;
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static uint8 *gfx=0;
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static int32 *sound=0;
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static int32 ssize=0;
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int ScreenshotRequested = 0;
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int ConfigRequested = 0;
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int ShutdownRequested = 0;
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int ResetRequested = 0;
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int ExitRequested = 0;
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char appPath[1024] = { 0 };
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int frameskip = 0;
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int turbomode = 0;
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unsigned char * nesrom = NULL;
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/****************************************************************************
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* Shutdown / Reboot / Exit
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***************************************************************************/
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static void ExitCleanup()
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{
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#ifdef HW_RVL
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ShutoffRumble();
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#endif
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ShutdownAudio();
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StopGX();
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HaltDeviceThread();
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UnmountAllFAT();
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#ifdef HW_RVL
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DI_Close();
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#endif
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}
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#ifdef HW_DOL
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#define PSOSDLOADID 0x7c6000a6
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int *psoid = (int *) 0x80001800;
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void (*PSOReload) () = (void (*)()) 0x80001800;
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#endif
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void ExitApp()
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{
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SavePrefs(SILENT);
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if (romLoaded && !ConfigRequested && GCSettings.AutoSave == 1)
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SaveRAMAuto(SILENT);
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ExitCleanup();
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if(ShutdownRequested)
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SYS_ResetSystem(SYS_POWEROFF, 0, 0);
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#ifdef HW_RVL
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if(GCSettings.ExitAction == 0) // Auto
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{
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char * sig = (char *)0x80001804;
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if(
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sig[0] == 'S' &&
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sig[1] == 'T' &&
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sig[2] == 'U' &&
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sig[3] == 'B' &&
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sig[4] == 'H' &&
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sig[5] == 'A' &&
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sig[6] == 'X' &&
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sig[7] == 'X')
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GCSettings.ExitAction = 3; // Exit to HBC
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else
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GCSettings.ExitAction = 1; // HBC not found
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}
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#endif
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if(GCSettings.ExitAction == 1) // Exit to Menu
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{
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#ifdef HW_RVL
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SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
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#else
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#define SOFTRESET_ADR ((volatile u32*)0xCC003024)
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*SOFTRESET_ADR = 0x00000000;
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#endif
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}
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else if(GCSettings.ExitAction == 2) // Shutdown Wii
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{
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SYS_ResetSystem(SYS_POWEROFF, 0, 0);
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}
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else // Exit to Loader
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{
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#ifdef HW_RVL
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exit(0);
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#else
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if (psoid[0] == PSOSDLOADID)
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PSOReload();
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#endif
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}
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}
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#ifdef HW_RVL
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void ShutdownCB()
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{
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ShutdownRequested = 1;
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}
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void ResetCB()
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{
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ResetRequested = 1;
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}
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#endif
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#ifdef HW_DOL
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/****************************************************************************
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* ipl_set_config
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* lowlevel Qoob Modchip disable
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***************************************************************************/
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static void ipl_set_config(unsigned char c)
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{
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volatile unsigned long* exi = (volatile unsigned long*)0xCC006800;
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unsigned long val,addr;
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addr=0xc0000000;
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val = c << 24;
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exi[0] = ((((exi[0]) & 0x405) | 256) | 48); //select IPL
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//write addr of IPL
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exi[0 * 5 + 4] = addr;
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exi[0 * 5 + 3] = ((4 - 1) << 4) | (1 << 2) | 1;
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while (exi[0 * 5 + 3] & 1);
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//write the ipl we want to send
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exi[0 * 5 + 4] = val;
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exi[0 * 5 + 3] = ((4 - 1) << 4) | (1 << 2) | 1;
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while (exi[0 * 5 + 3] & 1);
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exi[0] &= 0x405; //deselect IPL
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}
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#endif
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/****************************************************************************
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* USB Gecko Debugging
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***************************************************************************/
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static bool gecko = false;
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static mutex_t gecko_mutex = 0;
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static ssize_t __out_write(struct _reent *r, int fd, const char *ptr, size_t len)
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{
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u32 level;
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if (!ptr || len <= 0 || !gecko)
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return -1;
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LWP_MutexLock(gecko_mutex);
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level = IRQ_Disable();
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usb_sendbuffer(1, ptr, len);
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IRQ_Restore(level);
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LWP_MutexUnlock(gecko_mutex);
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return len;
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}
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const devoptab_t gecko_out = {
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"stdout", // device name
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0, // size of file structure
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NULL, // device open
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NULL, // device close
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__out_write,// device write
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NULL, // device read
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NULL, // device seek
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NULL, // device fstat
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NULL, // device stat
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NULL, // device link
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NULL, // device unlink
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NULL, // device chdir
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NULL, // device rename
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NULL, // device mkdir
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0, // dirStateSize
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NULL, // device diropen_r
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NULL, // device dirreset_r
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NULL, // device dirnext_r
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NULL, // device dirclose_r
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NULL // device statvfs_r
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};
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void USBGeckoOutput()
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{
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LWP_MutexInit(&gecko_mutex, false);
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gecko = usb_isgeckoalive(1);
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devoptab_list[STD_OUT] = &gecko_out;
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devoptab_list[STD_ERR] = &gecko_out;
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}
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/****************************************************************************
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* main
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* This is where it all happens!
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***************************************************************************/
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int main(int argc, char *argv[])
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{
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//USBGeckoOutput(); // uncomment to enable USB gecko output
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__exception_setreload(8);
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#ifdef HW_DOL
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ipl_set_config(6); // disable Qoob modchip
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#endif
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#ifdef HW_RVL
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DI_Close(); // fixes some black screen issues
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DI_Init(); // first
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#endif
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InitDeviceThread();
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VIDEO_Init();
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PAD_Init();
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#ifdef HW_RVL
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WPAD_Init();
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#endif
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InitGCVideo (); // Initialise video
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ResetVideo_Menu (); // change to menu video mode
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#ifdef HW_RVL
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// read wiimote accelerometer and IR data
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WPAD_SetDataFormat(WPAD_CHAN_ALL,WPAD_FMT_BTNS_ACC_IR);
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WPAD_SetVRes(WPAD_CHAN_ALL, screenwidth, screenheight);
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// Wii Power/Reset buttons
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WPAD_SetPowerButtonCallback((WPADShutdownCallback)ShutdownCB);
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SYS_SetPowerCallback(ShutdownCB);
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SYS_SetResetCallback(ResetCB);
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#endif
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// Initialize DVD subsystem (GameCube only)
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#ifdef HW_DOL
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DVD_Init ();
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#endif
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// store path app was loaded from
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#ifdef HW_RVL
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if(argc > 0 && argv[0] != NULL)
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CreateAppPath(argv[0]);
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#endif
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MountAllFAT(); // Initialize libFAT for SD and USB
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DefaultSettings(); // Set defaults
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// Audio
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InitialiseAudio();
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// Initialize font system
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InitFreeType((u8*)font_ttf, font_ttf_size);
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InitGUIThreads();
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// allocate memory to store rom
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nesrom = (unsigned char *)memalign(32,1024*1024*3); // 3 MB should be plenty
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/*** Minimal Emulation Loop ***/
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if (!FCEUI_Initialize())
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ExitApp();
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FCEUI_SetGameGenie(1); // 0 - OFF, 1 - ON
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memset(FDSBIOS, 0, sizeof(FDSBIOS)); // clear FDS BIOS memory
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FCEUI_SetSoundQuality(1); // 0 - low, 1 - high, 2 - high (alt.)
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int currentTiming = 0;
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while (1) // main loop
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{
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// go back to checking if devices were inserted/removed
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// since we're entering the menu
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ResumeDeviceThread();
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SwitchAudioMode(1);
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if(!romLoaded)
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MainMenu(MENU_GAMESELECTION);
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else
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MainMenu(MENU_GAME);
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if(currentTiming != GCSettings.timing)
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FCEUI_SetVidSystem(GCSettings.timing); // causes a small 'pop' in the audio
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currentTiming = GCSettings.timing;
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ConfigRequested = 0;
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ScreenshotRequested = 0;
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SwitchAudioMode(0);
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// stop checking if devices were removed/inserted
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// since we're starting emulation again
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HaltDeviceThread();
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ResetVideo_Emu();
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SetControllers();
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setFrameTimer(); // set frametimer method before emulation
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SetPalette();
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FCEUI_DisableSpriteLimitation(GCSettings.spritelimit ^ 1);
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fskip=0;
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fskipc=0;
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frameskip=0;
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while(1) // emulation loop
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{
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fskip = 0;
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if(turbomode)
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{
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fskip = 1;
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if(fskipc >= 18)
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{
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fskipc = 0;
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fskip = 0;
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}
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else
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{
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fskipc++;
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}
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}
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else if(frameskip > 0)
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{
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fskip = 1;
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if(fskipc >= frameskip)
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{
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fskipc = 0;
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fskip = 0;
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}
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else
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{
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fskipc++;
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}
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}
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FCEUI_Emulate(&gfx, &sound, &ssize, fskip);
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FCEUD_Update(gfx, sound, ssize);
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SyncSpeed();
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if(ResetRequested)
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{
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PowerNES(); // reset game
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ResetRequested = 0;
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}
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if(ConfigRequested)
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{
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ConfigRequested = 0;
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ResetVideo_Menu();
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break;
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}
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#ifdef HW_RVL
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if(ShutdownRequested)
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ExitApp();
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#endif
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} // emulation loop
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} // main loop
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}
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