mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-12-27 03:31:50 +01:00
a417745817
- Fix GameCube build - Add PowerPC specific Blargg makefile flags - Add LTO to Makefile.gc
932 lines
19 KiB
C++
932 lines
19 KiB
C++
/****************************************************************************
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* Snes9x Nintendo Wii/Gamecube Port
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*
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* softdev July 2006
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* crunchy2 May 2007
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* Michniewski 2008
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* Tantric 2008-2010
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*
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* fileop.cpp
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*
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* File operations
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***************************************************************************/
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#include <gccore.h>
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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 <ogcsys.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <zlib.h>
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#include <malloc.h>
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#include <sdcard/wiisd_io.h>
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#include <sdcard/gcsd.h>
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#include <ogc/usbstorage.h>
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#include <di/di.h>
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#include <ogc/dvd.h>
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#include <iso9660.h>
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#include "snes9xgx.h"
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#include "fileop.h"
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#include "networkop.h"
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#include "gcunzip.h"
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#include "menu.h"
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#include "filebrowser.h"
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#include "gui/gui.h"
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#define THREAD_SLEEP 100
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unsigned char *savebuffer = NULL;
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static mutex_t bufferLock = LWP_MUTEX_NULL;
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FILE * file; // file pointer - the only one we should ever use!
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bool unmountRequired[7] = { false, false, false, false, false, false, false };
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bool isMounted[7] = { false, false, false, false, false, false, false };
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#ifdef HW_RVL
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const DISC_INTERFACE* sd = &__io_wiisd;
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const DISC_INTERFACE* usb = &__io_usbstorage;
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const DISC_INTERFACE* dvd = &__io_wiidvd;
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#else
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const DISC_INTERFACE* carda = &__io_gcsda;
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const DISC_INTERFACE* cardb = &__io_gcsdb;
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const DISC_INTERFACE* dvd = &__io_gcdvd;
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#endif
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// folder parsing thread
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static lwp_t parsethread = LWP_THREAD_NULL;
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static DIR *dir = NULL;
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static bool parseHalt = true;
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static bool parseFilter = true;
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static bool ParseDirEntries();
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int selectLoadedFile = 0;
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// device thread
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static lwp_t devicethread = LWP_THREAD_NULL;
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static bool deviceHalt = true;
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/****************************************************************************
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* ResumeDeviceThread
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*
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* Signals the device thread to start, and resumes the thread.
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***************************************************************************/
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void
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ResumeDeviceThread()
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{
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deviceHalt = false;
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LWP_ResumeThread(devicethread);
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}
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/****************************************************************************
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* HaltGui
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*
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* Signals the device thread to stop.
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***************************************************************************/
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void
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HaltDeviceThread()
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{
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#ifdef HW_RVL
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deviceHalt = true;
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// wait for thread to finish
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while(!LWP_ThreadIsSuspended(devicethread))
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usleep(THREAD_SLEEP);
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#endif
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}
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/****************************************************************************
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* HaltParseThread
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*
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* Signals the parse thread to stop.
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***************************************************************************/
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void
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HaltParseThread()
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{
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parseHalt = true;
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while(!LWP_ThreadIsSuspended(parsethread))
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usleep(THREAD_SLEEP);
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}
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/****************************************************************************
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* devicecallback
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*
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* This checks our devices for changes (SD/USB/DVD removed)
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***************************************************************************/
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#ifdef HW_RVL
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static int devsleep;
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static void *
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devicecallback (void *arg)
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{
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while (1)
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{
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if(isMounted[DEVICE_SD])
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{
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if(!sd->isInserted()) // check if the device was removed
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{
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unmountRequired[DEVICE_SD] = true;
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isMounted[DEVICE_SD] = false;
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}
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}
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if(isMounted[DEVICE_USB])
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{
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if(!usb->isInserted()) // check if the device was removed
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{
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unmountRequired[DEVICE_USB] = true;
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isMounted[DEVICE_USB] = false;
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}
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}
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if(isMounted[DEVICE_DVD])
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{
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if(!dvd->isInserted()) // check if the device was removed
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{
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unmountRequired[DEVICE_DVD] = true;
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isMounted[DEVICE_DVD] = false;
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}
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}
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devsleep = 1000*1000; // 1 sec
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while(devsleep > 0)
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{
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if(deviceHalt)
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LWP_SuspendThread(devicethread);
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usleep(THREAD_SLEEP);
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devsleep -= THREAD_SLEEP;
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}
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UpdateCheck();
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}
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return NULL;
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}
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#endif
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static void *
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parsecallback (void *arg)
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{
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while(1)
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{
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while(ParseDirEntries())
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usleep(THREAD_SLEEP);
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LWP_SuspendThread(parsethread);
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}
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return NULL;
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}
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/****************************************************************************
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* InitDeviceThread
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*
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* libOGC provides a nice wrapper for LWP access.
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* This function sets up a new local queue and attaches the thread to it.
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***************************************************************************/
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void
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InitDeviceThread()
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{
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#ifdef HW_RVL
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LWP_CreateThread (&devicethread, devicecallback, NULL, NULL, 0, 40);
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#endif
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LWP_CreateThread (&parsethread, parsecallback, NULL, NULL, 0, 80);
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}
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/****************************************************************************
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* UnmountAllFAT
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* Unmounts all FAT devices
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***************************************************************************/
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void UnmountAllFAT()
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{
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#ifdef HW_RVL
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fatUnmount("sd:");
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fatUnmount("usb:");
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#else
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fatUnmount("carda:");
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fatUnmount("cardb:");
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#endif
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}
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/****************************************************************************
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* MountFAT
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* Checks if the device needs to be (re)mounted
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* If so, unmounts the device
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* Attempts to mount the device specified
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* Sets libfat to use the device by default
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***************************************************************************/
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static bool MountFAT(int device, int silent)
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{
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bool mounted = false;
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int retry = 1;
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char name[10], name2[10];
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const DISC_INTERFACE* disc = NULL;
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switch(device)
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{
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#ifdef HW_RVL
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case DEVICE_SD:
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sprintf(name, "sd");
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sprintf(name2, "sd:");
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disc = sd;
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break;
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case DEVICE_USB:
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sprintf(name, "usb");
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sprintf(name2, "usb:");
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disc = usb;
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break;
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#else
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case DEVICE_SD_SLOTA:
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sprintf(name, "carda");
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sprintf(name2, "carda:");
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disc = carda;
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break;
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case DEVICE_SD_SLOTB:
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sprintf(name, "cardb");
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sprintf(name2, "cardb:");
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disc = cardb;
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break;
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#endif
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default:
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return false; // unknown device
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}
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if(unmountRequired[device])
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{
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unmountRequired[device] = false;
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fatUnmount(name2);
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disc->shutdown();
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isMounted[device] = false;
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}
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while(retry)
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{
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if(disc->startup() && fatMountSimple(name, disc))
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mounted = true;
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if(mounted || silent)
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break;
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#ifdef HW_RVL
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if(device == DEVICE_SD)
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retry = ErrorPromptRetry("SD card not found!");
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else
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retry = ErrorPromptRetry("USB drive not found!");
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#else
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retry = ErrorPromptRetry("SD card not found!");
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#endif
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}
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isMounted[device] = mounted;
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return mounted;
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}
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void MountAllFAT()
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{
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#ifdef HW_RVL
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MountFAT(DEVICE_SD, SILENT);
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MountFAT(DEVICE_USB, SILENT);
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#else
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MountFAT(DEVICE_SD_SLOTA, SILENT);
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MountFAT(DEVICE_SD_SLOTB, SILENT);
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#endif
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}
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/****************************************************************************
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* MountDVD()
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*
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* Tests if a ISO9660 DVD is inserted and available, and mounts it
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***************************************************************************/
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bool MountDVD(bool silent)
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{
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bool mounted = false;
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int retry = 1;
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if(unmountRequired[DEVICE_DVD])
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{
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unmountRequired[DEVICE_DVD] = false;
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ISO9660_Unmount("dvd:");
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}
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while(retry)
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{
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ShowAction("Loading DVD...");
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if(!dvd->isInserted())
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{
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if(silent)
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break;
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retry = ErrorPromptRetry("No disc inserted!");
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}
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else if(!ISO9660_Mount("dvd", dvd))
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{
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if(silent)
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break;
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retry = ErrorPromptRetry("Unrecognized DVD format.");
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}
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else
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{
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mounted = true;
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break;
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}
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}
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CancelAction();
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isMounted[DEVICE_DVD] = mounted;
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return mounted;
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}
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bool FindDevice(char * filepath, int * device)
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{
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if(!filepath || filepath[0] == 0)
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return false;
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if(strncmp(filepath, "sd:", 3) == 0)
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{
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*device = DEVICE_SD;
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return true;
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}
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else if(strncmp(filepath, "usb:", 4) == 0)
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{
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*device = DEVICE_USB;
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return true;
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}
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else if(strncmp(filepath, "smb:", 4) == 0)
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{
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*device = DEVICE_SMB;
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return true;
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}
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else if(strncmp(filepath, "carda:", 6) == 0)
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{
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*device = DEVICE_SD_SLOTA;
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return true;
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}
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else if(strncmp(filepath, "cardb:", 6) == 0)
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{
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*device = DEVICE_SD_SLOTB;
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return true;
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}
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else if(strncmp(filepath, "dvd:", 4) == 0)
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{
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*device = DEVICE_DVD;
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return true;
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}
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return false;
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}
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char * StripDevice(char * path)
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{
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if(path == NULL)
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return NULL;
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char * newpath = strchr(path,'/');
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if(newpath != NULL)
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newpath++;
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return newpath;
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}
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/****************************************************************************
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* ChangeInterface
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* Attempts to mount/configure the device specified
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***************************************************************************/
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bool ChangeInterface(int device, bool silent)
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{
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if(isMounted[device])
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return true;
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bool mounted = false;
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switch(device)
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{
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#ifdef HW_RVL
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case DEVICE_SD:
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case DEVICE_USB:
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#else
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case DEVICE_SD_SLOTA:
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case DEVICE_SD_SLOTB:
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#endif
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mounted = MountFAT(device, silent);
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break;
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case DEVICE_DVD:
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mounted = MountDVD(silent);
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break;
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case DEVICE_SMB:
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mounted = ConnectShare(silent);
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break;
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}
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return mounted;
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}
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bool ChangeInterface(char * filepath, bool silent)
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{
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int device = -1;
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if(!FindDevice(filepath, &device))
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return false;
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return ChangeInterface(device, silent);
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}
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void CreateAppPath(char * origpath)
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{
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if(!origpath || origpath[0] == 0)
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return;
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char * path = strdup(origpath); // make a copy so we don't mess up original
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if(!path)
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return;
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char * loc = strrchr(path,'/');
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if (loc != NULL)
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*loc = 0; // strip file name
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int pos = 0;
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// replace fat:/ with sd:/
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if(strncmp(path, "fat:/", 5) == 0)
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{
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pos++;
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path[1] = 's';
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path[2] = 'd';
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}
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if(ChangeInterface(&path[pos], SILENT))
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snprintf(appPath, MAXPATHLEN-1, "%s", &path[pos]);
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free(path);
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}
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static char *GetExt(char *file)
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{
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if(!file)
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return NULL;
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char *ext = strrchr(file,'.');
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if(ext != NULL)
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{
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ext++;
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int extlen = strlen(ext);
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if(extlen > 5)
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return NULL;
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}
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return ext;
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}
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bool GetFileSize(int i)
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{
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if(browserList[i].length > 0)
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return true;
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struct stat filestat;
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char path[MAXPATHLEN+1];
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snprintf(path, MAXPATHLEN, "%s%s", browser.dir, browserList[i].filename);
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if(stat(path, &filestat) < 0)
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return false;
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browserList[i].length = filestat.st_size;
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return true;
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}
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void FindAndSelectLastLoadedFile ()
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{
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int indexFound = -1;
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for(int j=1; j < browser.numEntries; j++)
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{
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if(strcmp(browserList[j].filename, GCSettings.LastFileLoaded) == 0)
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{
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indexFound = j;
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break;
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}
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}
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// move to this file
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if(indexFound > 0)
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{
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if(indexFound >= FILE_PAGESIZE)
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{
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int newIndex = (floor(indexFound/(float)FILE_PAGESIZE)) * FILE_PAGESIZE;
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if(newIndex + FILE_PAGESIZE > browser.numEntries)
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newIndex = browser.numEntries - FILE_PAGESIZE;
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if(newIndex < 0)
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newIndex = 0;
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browser.pageIndex = newIndex;
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}
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browser.selIndex = indexFound;
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}
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selectLoadedFile = 2; // selecting done
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}
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|
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static bool ParseDirEntries()
|
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{
|
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if(!dir)
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return false;
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|
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char *ext;
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struct dirent *entry = NULL;
|
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int isdir;
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int i = 0;
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while(i < 20 && !parseHalt)
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{
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entry = readdir(dir);
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|
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if(entry == NULL)
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break;
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if(entry->d_name[0] == '.' && entry->d_name[1] != '.')
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continue;
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if(strcmp(entry->d_name, "..") == 0)
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{
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isdir = 1;
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}
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else
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{
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if(entry->d_type==DT_DIR)
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isdir = 1;
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else
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isdir = 0;
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|
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// don't show the file if it's not a valid ROM
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if(parseFilter && !isdir)
|
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{
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ext = GetExt(entry->d_name);
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|
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if(ext == NULL)
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continue;
|
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|
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if( strcasecmp(ext, "smc") != 0 && strcasecmp(ext, "fig") != 0 &&
|
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strcasecmp(ext, "sfc") != 0 && strcasecmp(ext, "swc") != 0 &&
|
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strcasecmp(ext, "zip") != 0 && strcasecmp(ext, "7z") != 0)
|
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continue;
|
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}
|
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}
|
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|
|
if(!AddBrowserEntry())
|
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{
|
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parseHalt = true;
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break;
|
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}
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|
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snprintf(browserList[browser.numEntries+i].filename, MAXJOLIET, "%s", entry->d_name);
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browserList[browser.numEntries+i].isdir = isdir; // flag this as a dir
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|
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if(isdir)
|
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{
|
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if(strcmp(entry->d_name, "..") == 0)
|
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sprintf(browserList[browser.numEntries+i].displayname, "Up One Level");
|
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else
|
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snprintf(browserList[browser.numEntries+i].displayname, MAXJOLIET, "%s", browserList[browser.numEntries+i].filename);
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browserList[browser.numEntries+i].icon = ICON_FOLDER;
|
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}
|
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else
|
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{
|
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StripExt(browserList[browser.numEntries+i].displayname, browserList[browser.numEntries+i].filename); // hide file extension
|
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}
|
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i++;
|
|
}
|
|
|
|
if(!parseHalt)
|
|
{
|
|
// Sort the file list
|
|
if(i >= 0)
|
|
qsort(browserList, browser.numEntries+i, sizeof(BROWSERENTRY), FileSortCallback);
|
|
|
|
browser.numEntries += i;
|
|
}
|
|
|
|
if(entry == NULL || parseHalt)
|
|
{
|
|
closedir(dir); // close directory
|
|
dir = NULL;
|
|
|
|
return false; // no more entries
|
|
}
|
|
return true; // more entries
|
|
}
|
|
|
|
/***************************************************************************
|
|
* Browse subdirectories
|
|
**************************************************************************/
|
|
int
|
|
ParseDirectory(bool waitParse, bool filter)
|
|
{
|
|
int retry = 1;
|
|
bool mounted = false;
|
|
parseFilter = filter;
|
|
|
|
ResetBrowser(); // reset browser
|
|
|
|
// add trailing slash
|
|
if(browser.dir[strlen(browser.dir)-1] != '/')
|
|
strcat(browser.dir, "/");
|
|
|
|
// open the directory
|
|
while(dir == NULL && retry == 1)
|
|
{
|
|
mounted = ChangeInterface(browser.dir, NOTSILENT);
|
|
|
|
if(mounted)
|
|
dir = opendir(browser.dir);
|
|
else
|
|
return -1;
|
|
|
|
if(dir == NULL)
|
|
{
|
|
retry = ErrorPromptRetry("Error opening directory!");
|
|
}
|
|
}
|
|
|
|
// if we can't open the dir, try higher levels
|
|
if (dir == NULL)
|
|
{
|
|
char * devEnd = strrchr(browser.dir, '/');
|
|
|
|
while(!IsDeviceRoot(browser.dir))
|
|
{
|
|
devEnd[0] = 0; // strip slash
|
|
devEnd = strrchr(browser.dir, '/');
|
|
|
|
if(devEnd == NULL)
|
|
break;
|
|
|
|
devEnd[1] = 0; // strip remaining file listing
|
|
dir = opendir(browser.dir);
|
|
if (dir)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(dir == NULL)
|
|
return -1;
|
|
|
|
if(IsDeviceRoot(browser.dir))
|
|
{
|
|
AddBrowserEntry();
|
|
sprintf(browserList[0].filename, "..");
|
|
sprintf(browserList[0].displayname, "Up One Level");
|
|
browserList[0].length = 0;
|
|
browserList[0].isdir = 1; // flag this as a dir
|
|
browserList[0].icon = ICON_FOLDER;
|
|
browser.numEntries++;
|
|
}
|
|
|
|
parseHalt = false;
|
|
ParseDirEntries(); // index first 20 entries
|
|
|
|
LWP_ResumeThread(parsethread); // index remaining entries
|
|
|
|
if(waitParse) // wait for complete parsing
|
|
{
|
|
ShowAction("Loading...");
|
|
|
|
while(!LWP_ThreadIsSuspended(parsethread))
|
|
usleep(THREAD_SLEEP);
|
|
|
|
CancelAction();
|
|
}
|
|
|
|
return browser.numEntries;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* AllocSaveBuffer ()
|
|
* Clear and allocate the savebuffer
|
|
***************************************************************************/
|
|
void
|
|
AllocSaveBuffer ()
|
|
{
|
|
if(bufferLock == LWP_MUTEX_NULL)
|
|
LWP_MutexInit(&bufferLock, false);
|
|
|
|
if(bufferLock != LWP_MUTEX_NULL)
|
|
LWP_MutexLock(bufferLock);
|
|
memset (savebuffer, 0, SAVEBUFFERSIZE);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* FreeSaveBuffer ()
|
|
* Free the savebuffer memory
|
|
***************************************************************************/
|
|
void
|
|
FreeSaveBuffer ()
|
|
{
|
|
if(bufferLock != LWP_MUTEX_NULL)
|
|
LWP_MutexUnlock(bufferLock);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* LoadSzFile
|
|
* Loads the selected file # from the specified 7z into rbuffer
|
|
* Returns file size
|
|
***************************************************************************/
|
|
size_t
|
|
LoadSzFile(char * filepath, unsigned char * rbuffer)
|
|
{
|
|
size_t size = 0;
|
|
|
|
// stop checking if devices were removed/inserted
|
|
// since we're loading a file
|
|
HaltDeviceThread();
|
|
|
|
// halt parsing
|
|
HaltParseThread();
|
|
|
|
file = fopen (filepath, "rb");
|
|
if (file > 0)
|
|
{
|
|
size = SzExtractFile(browserList[browser.selIndex].filenum, rbuffer);
|
|
fclose (file);
|
|
}
|
|
else
|
|
{
|
|
ErrorPrompt("Error opening file!");
|
|
}
|
|
|
|
// go back to checking if devices were inserted/removed
|
|
ResumeDeviceThread();
|
|
|
|
return size;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* LoadFile
|
|
***************************************************************************/
|
|
size_t
|
|
LoadFile (char * rbuffer, char *filepath, size_t length, bool silent)
|
|
{
|
|
char zipbuffer[2048];
|
|
size_t size = 0, offset = 0, readsize = 0;
|
|
int retry = 1;
|
|
int device;
|
|
|
|
if(!FindDevice(filepath, &device))
|
|
return 0;
|
|
|
|
// stop checking if devices were removed/inserted
|
|
// since we're loading a file
|
|
HaltDeviceThread();
|
|
|
|
// halt parsing
|
|
HaltParseThread();
|
|
|
|
// open the file
|
|
while(retry)
|
|
{
|
|
if(!ChangeInterface(device, silent))
|
|
break;
|
|
|
|
file = fopen (filepath, "rb");
|
|
|
|
if(!file)
|
|
{
|
|
if(silent)
|
|
break;
|
|
|
|
retry = ErrorPromptRetry("Error opening file!");
|
|
continue;
|
|
}
|
|
|
|
if(length > 0 && length <= 2048) // do a partial read (eg: to check file header)
|
|
{
|
|
size = fread (rbuffer, 1, length, file);
|
|
}
|
|
else // load whole file
|
|
{
|
|
readsize = fread (zipbuffer, 1, 32, file);
|
|
|
|
if(!readsize)
|
|
{
|
|
unmountRequired[device] = true;
|
|
retry = ErrorPromptRetry("Error reading file!");
|
|
fclose (file);
|
|
continue;
|
|
}
|
|
|
|
if (IsZipFile (zipbuffer))
|
|
{
|
|
size = UnZipBuffer ((unsigned char *)rbuffer); // unzip
|
|
}
|
|
else
|
|
{
|
|
fseeko(file,0,SEEK_END);
|
|
size = ftello(file);
|
|
fseeko(file,0,SEEK_SET);
|
|
|
|
while(!feof(file))
|
|
{
|
|
ShowProgress ("Loading...", offset, size);
|
|
readsize = fread (rbuffer + offset, 1, 4096, file); // read in next chunk
|
|
|
|
if(readsize <= 0)
|
|
break; // reading finished (or failed)
|
|
|
|
offset += readsize;
|
|
}
|
|
size = offset;
|
|
CancelAction();
|
|
}
|
|
}
|
|
retry = 0;
|
|
fclose (file);
|
|
}
|
|
|
|
// go back to checking if devices were inserted/removed
|
|
ResumeDeviceThread();
|
|
CancelAction();
|
|
return size;
|
|
}
|
|
|
|
size_t LoadFile(char * filepath, bool silent)
|
|
{
|
|
return LoadFile((char *)savebuffer, filepath, 0, silent);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* SaveFile
|
|
* Write buffer to file
|
|
***************************************************************************/
|
|
size_t
|
|
SaveFile (char * buffer, char *filepath, size_t datasize, bool silent)
|
|
{
|
|
size_t written = 0;
|
|
size_t writesize, nextwrite;
|
|
int retry = 1;
|
|
int device;
|
|
|
|
if(!FindDevice(filepath, &device))
|
|
return 0;
|
|
|
|
if(datasize == 0)
|
|
return 0;
|
|
|
|
// stop checking if devices were removed/inserted
|
|
// since we're saving a file
|
|
HaltDeviceThread();
|
|
|
|
// halt parsing
|
|
HaltParseThread();
|
|
|
|
if(!silent)
|
|
ShowAction("Saving...");
|
|
|
|
while(!written && retry == 1)
|
|
{
|
|
if(!ChangeInterface(device, silent))
|
|
break;
|
|
|
|
file = fopen (filepath, "wb");
|
|
|
|
if(!file)
|
|
{
|
|
if(silent)
|
|
break;
|
|
|
|
retry = ErrorPromptRetry("Error creating file!");
|
|
continue;
|
|
}
|
|
|
|
while(written < datasize)
|
|
{
|
|
if(datasize - written > 4096) nextwrite=4096;
|
|
else nextwrite = datasize-written;
|
|
writesize = fwrite (buffer+written, 1, nextwrite, file);
|
|
if(writesize != nextwrite) break; // write failure
|
|
written += writesize;
|
|
}
|
|
fclose (file);
|
|
|
|
if(written != datasize) written = 0;
|
|
|
|
if(!written)
|
|
{
|
|
unmountRequired[device] = true;
|
|
if(silent) break;
|
|
retry = ErrorPromptRetry("Error saving file!");
|
|
}
|
|
}
|
|
|
|
// go back to checking if devices were inserted/removed
|
|
ResumeDeviceThread();
|
|
|
|
if(!silent)
|
|
CancelAction();
|
|
return written;
|
|
}
|
|
|
|
size_t SaveFile(char * filepath, size_t datasize, bool silent)
|
|
{
|
|
return SaveFile((char *)savebuffer, filepath, datasize, silent);
|
|
}
|