mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-11-24 11:39:21 +01:00
555 lines
13 KiB
C++
555 lines
13 KiB
C++
/****************************************************************************
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* Snes9x 1.51 Nintendo Wii/Gamecube Port
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*
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* softdev July 2006
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* svpe June 2007
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* crunchy2 May-July 2007
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* Michniewski 2008
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* Tantric 2008-2009
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*
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* filesel.cpp
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*
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* Generic file routines - reading, writing, browsing
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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 <wiiuse/wpad.h>
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#include <sys/dir.h>
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#include <malloc.h>
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#ifdef HW_RVL
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extern "C" {
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#include <di/di.h>
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}
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#endif
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#include "snes9x.h"
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#include "memmap.h"
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#include "filebrowser.h"
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#include "snes9xGX.h"
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#include "dvd.h"
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#include "menu.h"
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#include "video.h"
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#include "aram.h"
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#include "networkop.h"
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#include "fileop.h"
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#include "memcardop.h"
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#include "input.h"
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#include "gcunzip.h"
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#include "cheatmgr.h"
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#include "patch.h"
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#include "freeze.h"
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#include "sram.h"
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BROWSERINFO browser;
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BROWSERENTRY * browserList = NULL; // list of files/folders in browser
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char rootdir[10];
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static char szpath[MAXPATHLEN];
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static bool inSz = false;
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unsigned long SNESROMSize = 0;
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/****************************************************************************
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* autoLoadMethod()
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* Auto-determines and sets the load method
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* Returns method set
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****************************************************************************/
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int autoLoadMethod()
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{
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ShowAction ("Attempting to determine load method...");
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int method = METHOD_AUTO;
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if(ChangeInterface(METHOD_SD, SILENT))
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method = METHOD_SD;
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else if(ChangeInterface(METHOD_USB, SILENT))
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method = METHOD_USB;
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else if(ChangeInterface(METHOD_DVD, SILENT))
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method = METHOD_DVD;
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else if(ChangeInterface(METHOD_SMB, SILENT))
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method = METHOD_SMB;
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else
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ErrorPrompt("Unable to auto-determine load method!");
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if(GCSettings.LoadMethod == METHOD_AUTO)
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GCSettings.LoadMethod = method; // save method found for later use
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CancelAction();
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return method;
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}
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/****************************************************************************
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* autoSaveMethod()
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* Auto-determines and sets the save method
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* Returns method set
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****************************************************************************/
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int autoSaveMethod(bool silent)
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{
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if(!silent)
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ShowAction ("Attempting to determine save method...");
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int method = METHOD_AUTO;
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if(ChangeInterface(METHOD_SD, SILENT))
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method = METHOD_SD;
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else if(ChangeInterface(METHOD_USB, SILENT))
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method = METHOD_USB;
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else if(ChangeInterface(METHOD_MC_SLOTA, SILENT))
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method = METHOD_MC_SLOTA;
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else if(ChangeInterface(METHOD_MC_SLOTB, SILENT))
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method = METHOD_MC_SLOTB;
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else if(ChangeInterface(METHOD_SMB, SILENT))
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method = METHOD_SMB;
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else if(!silent)
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ErrorPrompt("Unable to auto-determine save method!");
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if(GCSettings.SaveMethod == METHOD_AUTO)
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GCSettings.SaveMethod = method; // save method found for later use
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CancelAction();
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return method;
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}
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/****************************************************************************
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* ResetBrowser()
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* Clears the file browser memory, and allocates one initial entry
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***************************************************************************/
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void ResetBrowser()
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{
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browser.numEntries = 0;
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browser.selIndex = 0;
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browser.pageIndex = 0;
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// Clear any existing values
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if(browserList != NULL)
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{
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free(browserList);
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browserList = NULL;
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}
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// set aside space for 1 entry
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browserList = (BROWSERENTRY *)malloc(sizeof(BROWSERENTRY));
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memset(browserList, 0, sizeof(BROWSERENTRY));
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}
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/****************************************************************************
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* UpdateDirName()
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* Update curent directory name for file browser
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***************************************************************************/
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int UpdateDirName(int method)
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{
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int size=0;
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char * test;
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char temp[1024];
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// update DVD directory
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if(method == METHOD_DVD)
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SetDVDdirectory(browserList[browser.selIndex].offset, browserList[browser.selIndex].length);
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/* current directory doesn't change */
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if (strcmp(browserList[browser.selIndex].filename,".") == 0)
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{
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return 0;
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}
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/* go up to parent directory */
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else if (strcmp(browserList[browser.selIndex].filename,"..") == 0)
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{
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/* determine last subdirectory namelength */
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sprintf(temp,"%s",browser.dir);
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test = strtok(temp,"/");
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while (test != NULL)
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{
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size = strlen(test);
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test = strtok(NULL,"/");
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}
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/* remove last subdirectory name */
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size = strlen(browser.dir) - size - 1;
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browser.dir[size] = 0;
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return 1;
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}
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/* Open a directory */
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else
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{
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/* test new directory namelength */
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if ((strlen(browser.dir)+1+strlen(browserList[browser.selIndex].filename)) < MAXPATHLEN)
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{
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/* update current directory name */
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sprintf(browser.dir, "%s/%s",browser.dir, browserList[browser.selIndex].filename);
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return 1;
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}
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else
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{
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ErrorPrompt("Directory name is too long!");
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return -1;
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}
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}
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}
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bool MakeFilePath(char filepath[], int type, int method, char * filename, int filenum)
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{
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char file[512];
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char folder[1024];
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char ext[4];
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char temppath[MAXPATHLEN];
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if(type == FILE_ROM)
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{
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// Check path length
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if ((strlen(browser.dir)+1+strlen(browserList[browser.selIndex].filename)) >= MAXPATHLEN)
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{
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ErrorPrompt("Maximum filepath length reached!");
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filepath[0] = 0;
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return false;
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}
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else
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{
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sprintf(temppath, "%s/%s",browser.dir,browserList[browser.selIndex].filename);
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}
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}
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else
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{
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switch(type)
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{
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case FILE_SRAM:
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case FILE_SNAPSHOT:
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sprintf(folder, GCSettings.SaveFolder);
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if(type == FILE_SRAM) sprintf(ext, "srm");
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else sprintf(ext, "frz");
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if(filenum >= 0)
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{
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if(method == METHOD_MC_SLOTA || method == METHOD_MC_SLOTB)
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{
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filename[26] = 0; // truncate filename
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sprintf(file, "%s%i.%s", filename, filenum, ext);
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}
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else
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{
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if(filenum == 0)
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sprintf(file, "%s Auto.%s", filename, ext);
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else
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sprintf(file, "%s %i.%s", filename, filenum, ext);
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}
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}
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else
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{
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sprintf(file, "%s", filename);
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}
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break;
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case FILE_CHEAT:
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sprintf(folder, GCSettings.CheatFolder);
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sprintf(file, "%s.cht", Memory.ROMFilename);
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break;
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case FILE_PREF:
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sprintf(folder, appPath);
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sprintf(file, "%s", PREF_FILE_NAME);
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break;
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case FILE_SCREEN:
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sprintf(folder, GCSettings.SaveFolder);
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sprintf(file, "%s.png", Memory.ROMFilename);
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break;
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}
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switch(method)
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{
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case METHOD_MC_SLOTA:
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case METHOD_MC_SLOTB:
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sprintf (temppath, "%s", file);
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temppath[31] = 0; // truncate filename
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break;
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default:
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sprintf (temppath, "%s/%s", folder, file);
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break;
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}
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}
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strncpy(filepath, temppath, MAXPATHLEN);
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return true;
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}
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/****************************************************************************
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* FileSortCallback
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*
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* Quick sort callback to sort file entries with the following order:
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* .
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* ..
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* <dirs>
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* <files>
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***************************************************************************/
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int FileSortCallback(const void *f1, const void *f2)
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{
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/* Special case for implicit directories */
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if(((BROWSERENTRY *)f1)->filename[0] == '.' || ((BROWSERENTRY *)f2)->filename[0] == '.')
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{
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if(strcmp(((BROWSERENTRY *)f1)->filename, ".") == 0) { return -1; }
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if(strcmp(((BROWSERENTRY *)f2)->filename, ".") == 0) { return 1; }
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if(strcmp(((BROWSERENTRY *)f1)->filename, "..") == 0) { return -1; }
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if(strcmp(((BROWSERENTRY *)f2)->filename, "..") == 0) { return 1; }
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}
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/* If one is a file and one is a directory the directory is first. */
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if(((BROWSERENTRY *)f1)->isdir && !(((BROWSERENTRY *)f2)->isdir)) return -1;
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if(!(((BROWSERENTRY *)f1)->isdir) && ((BROWSERENTRY *)f2)->isdir) return 1;
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return stricmp(((BROWSERENTRY *)f1)->filename, ((BROWSERENTRY *)f2)->filename);
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}
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/****************************************************************************
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* IsValidROM
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*
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* Checks if the specified file is a valid ROM
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* For now we will just check the file extension and file size
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* If the file is a zip, we will check the file extension / file size of the
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* first file inside
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***************************************************************************/
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static bool IsValidROM(int method)
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{
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// file size should be between 96K and 8MB
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if(browserList[browser.selIndex].length < (1024*96) ||
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browserList[browser.selIndex].length > Memory.MAX_ROM_SIZE)
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{
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ErrorPrompt("Invalid file size!");
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return false;
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}
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if (strlen(browserList[browser.selIndex].filename) > 4)
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{
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char * p = strrchr(browserList[browser.selIndex].filename, '.');
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if (p != NULL)
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{
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if(stricmp(p, ".zip") == 0 && !inSz)
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{
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// we need to check the file extension of the first file in the archive
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char * zippedFilename = GetFirstZipFilename (method);
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if(zippedFilename == NULL) // we don't want to run strlen on NULL
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p = NULL;
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else if(strlen(zippedFilename) > 4)
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p = strrchr(zippedFilename, '.');
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else
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p = NULL;
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}
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if(p != NULL)
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{
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if (stricmp(p, ".smc") == 0 ||
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stricmp(p, ".fig") == 0 ||
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stricmp(p, ".sfc") == 0 ||
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stricmp(p, ".swc") == 0)
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{
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return true;
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}
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}
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}
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}
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ErrorPrompt("Unknown file type!");
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return false;
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}
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/****************************************************************************
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* IsSz
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*
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* Checks if the specified file is a 7z
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***************************************************************************/
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bool IsSz()
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{
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if (strlen(browserList[browser.selIndex].filename) > 4)
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{
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char * p = strrchr(browserList[browser.selIndex].filename, '.');
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if (p != NULL)
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if(stricmp(p, ".7z") == 0)
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return true;
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}
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return false;
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}
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/****************************************************************************
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* StripExt
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*
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* Strips an extension from a filename
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***************************************************************************/
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void StripExt(char* returnstring, char * inputstring)
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{
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char* loc_dot;
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strncpy (returnstring, inputstring, 255);
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if(inputstring == NULL || strlen(inputstring) < 4)
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return;
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loc_dot = strrchr(returnstring,'.');
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if (loc_dot != NULL)
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*loc_dot = 0; // strip file extension
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}
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// 7z file - let's open it up to select a file inside
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int BrowserLoadSz(int method)
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{
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char filepath[MAXPATHLEN];
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memset(filepath, 0, MAXPATHLEN);
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// we'll store the 7z filepath for extraction later
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if(!MakeFilePath(szpath, FILE_ROM, method))
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return 0;
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// add device to filepath
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sprintf(filepath, "%s%s", rootdir, szpath);
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memcpy(szpath, filepath, MAXPATHLEN);
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int szfiles = SzParse(szpath, method);
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if(szfiles)
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{
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browser.numEntries = szfiles;
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inSz = true;
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}
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else
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ErrorPrompt("Error opening archive!");
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return szfiles;
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}
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int BrowserLoadFile(int method)
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{
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char filepath[1024];
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int loaded = 0;
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// check that this is a valid ROM
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if(!IsValidROM(method))
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goto done;
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// store the filename (w/o ext) - used for sram/freeze naming
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StripExt(Memory.ROMFilename, browserList[browser.selIndex].filename);
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SNESROMSize = 0;
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if(!inSz)
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{
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if(!MakeFilePath(filepath, FILE_ROM, method))
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goto done;
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SNESROMSize = LoadFile ((char *)Memory.ROM, filepath, browserList[browser.selIndex].length, method, NOTSILENT);
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}
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else
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{
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switch (method)
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{
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case METHOD_DVD:
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SNESROMSize = SzExtractFile(browserList[browser.selIndex].offset, (unsigned char *)Memory.ROM);
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break;
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default:
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SNESROMSize = LoadSzFile(szpath, (unsigned char *)Memory.ROM);
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break;
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}
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}
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inSz = false;
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if (SNESROMSize <= 0)
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{
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ErrorPrompt("Error loading ROM!");
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}
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else
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{
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// load UPS/IPS/PPF patch
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LoadPatch(GCSettings.LoadMethod);
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Memory.LoadROM ("BLANK.SMC");
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Memory.LoadSRAM ("BLANK");
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// load SRAM or snapshot
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if (GCSettings.AutoLoad == 1)
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LoadSRAMAuto(GCSettings.SaveMethod, SILENT);
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else if (GCSettings.AutoLoad == 2)
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NGCUnfreezeGameAuto(GCSettings.SaveMethod, SILENT);
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// setup cheats
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if(GCSettings.SaveMethod != METHOD_MC_SLOTA &&
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GCSettings.SaveMethod != METHOD_MC_SLOTB)
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SetupCheats();
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ResetBrowser();
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loaded = 1;
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}
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done:
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CancelAction();
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return loaded;
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}
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/* update current directory and set new entry list if directory has changed */
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int BrowserChangeFolder(int method)
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{
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if(inSz && browser.selIndex == 0) // inside a 7z, requesting to leave
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{
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if(method == METHOD_DVD)
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SetDVDdirectory(browserList[0].offset, browserList[0].length);
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inSz = false;
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SzClose();
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}
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if(!UpdateDirName(method))
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return -1;
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switch (method)
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{
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case METHOD_DVD:
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ParseDVDdirectory();
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break;
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default:
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ParseDirectory();
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break;
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}
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if (!browser.numEntries)
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{
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ErrorPrompt("Error reading directory!");
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}
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return browser.numEntries;
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}
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/****************************************************************************
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* OpenROM
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* Displays a list of ROMS on load device
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***************************************************************************/
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int
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OpenGameList ()
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{
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int method = GCSettings.LoadMethod;
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if(method == METHOD_AUTO)
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method = autoLoadMethod();
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if(ChangeInterface(method, NOTSILENT))
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{
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// change current dir to roms directory
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switch(method)
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{
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case METHOD_DVD:
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browser.dir[0] = 0;
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ParseDVDdirectory(); // Parse root directory
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SwitchDVDFolder(GCSettings.LoadFolder); // switch to ROM folder
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break;
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default:
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sprintf(browser.dir, "/%s", GCSettings.LoadFolder);
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ParseDirectory(); // Parse root directory
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break;
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}
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}
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else
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{
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ResetBrowser();
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}
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return browser.numEntries;
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}
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