mirror of
https://github.com/dborth/snes9xgx.git
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645 lines
15 KiB
C++
645 lines
15 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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* svpe June 2007
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* crunchy2 May-July 2007
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* Michniewski 2008
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* Tantric 2008-2010
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*
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* filebrowser.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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#include <di/di.h>
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#endif
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#include "snes9x.h"
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#include "memmap.h"
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#include "cheats.h"
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#include "filebrowser.h"
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#include "snes9xGX.h"
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#include "menu.h"
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#include "video.h"
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#include "networkop.h"
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#include "fileop.h"
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#include "input.h"
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#include "gcunzip.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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static char szpath[MAXPATHLEN];
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static bool inSz = false;
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unsigned long SNESROMSize = 0;
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bool loadingFile = false;
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/****************************************************************************
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* autoLoadMethod()
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* Auto-determines and sets the load device
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* Returns device set
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****************************************************************************/
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int autoLoadMethod()
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{
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ShowAction ("Attempting to determine load device...");
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int device = DEVICE_AUTO;
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if(ChangeInterface(DEVICE_SD, SILENT))
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device = DEVICE_SD;
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else if(ChangeInterface(DEVICE_USB, SILENT))
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device = DEVICE_USB;
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else if(ChangeInterface(DEVICE_DVD, SILENT))
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device = DEVICE_DVD;
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else if(ChangeInterface(DEVICE_SMB, SILENT))
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device = DEVICE_SMB;
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else
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ErrorPrompt("Unable to locate a load device!");
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if(GCSettings.LoadMethod == DEVICE_AUTO)
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GCSettings.LoadMethod = device; // save device found for later use
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CancelAction();
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return device;
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}
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/****************************************************************************
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* autoSaveMethod()
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* Auto-determines and sets the save device
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* Returns device 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 device...");
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int device = DEVICE_AUTO;
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if(ChangeInterface(DEVICE_SD, SILENT))
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device = DEVICE_SD;
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else if(ChangeInterface(DEVICE_USB, SILENT))
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device = DEVICE_USB;
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else if(ChangeInterface(DEVICE_SMB, SILENT))
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device = DEVICE_SMB;
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else if(!silent)
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ErrorPrompt("Unable to locate a save device!");
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if(GCSettings.SaveMethod == DEVICE_AUTO)
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GCSettings.SaveMethod = device; // save device found for later use
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CancelAction();
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return device;
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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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browser.size = 1;
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}
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bool AddBrowserEntry()
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{
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BROWSERENTRY * newBrowserList = (BROWSERENTRY *)realloc(browserList, (browser.size+1) * sizeof(BROWSERENTRY));
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if(!newBrowserList) // failed to allocate required memory
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{
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ResetBrowser();
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ErrorPrompt("Out of memory: too many files!");
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return false;
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}
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else
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{
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browserList = newBrowserList;
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}
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memset(&(browserList[browser.size]), 0, sizeof(BROWSERENTRY)); // clear the new entry
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browser.size++;
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return true;
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}
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/****************************************************************************
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* CleanupPath()
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* Cleans up the filepath, removing double // and replacing \ with /
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***************************************************************************/
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static void CleanupPath(char * path)
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{
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if(!path || path[0] == 0)
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return;
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int pathlen = strlen(path);
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int j = 0;
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for(int i=0; i < pathlen && i < MAXPATHLEN; i++)
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{
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if(path[i] == '\\')
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path[i] = '/';
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if(j == 0 || !(path[j-1] == '/' && path[i] == '/'))
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path[j++] = path[i];
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}
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path[j] = 0;
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}
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bool IsDeviceRoot(char * path)
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{
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if(path == NULL || path[0] == 0)
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return false;
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if(strcmp(path, "sd:/") == 0 ||
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strcmp(path, "usb:/") == 0 ||
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strcmp(path, "dvd:/") == 0 ||
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strcmp(path, "smb:/") == 0)
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{
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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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* UpdateDirName()
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* Update curent directory name for file browser
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***************************************************************************/
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int UpdateDirName()
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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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int device = 0;
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if(browser.numEntries == 0)
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return 1;
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FindDevice(browser.dir, &device);
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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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// already at the top level
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if(IsDeviceRoot(browser.dir))
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{
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browser.dir[0] = 0; // remove device - we are going to the device listing screen
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}
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else
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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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}
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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, 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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if(GCSettings.SaveMethod == DEVICE_AUTO)
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GCSettings.SaveMethod = autoSaveMethod(SILENT);
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if(GCSettings.SaveMethod == DEVICE_AUTO)
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return false;
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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 >= -1)
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{
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if(filenum == -1)
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sprintf(file, "%s.%s", filename, ext);
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else 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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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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}
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sprintf (temppath, "%s%s/%s", pathPrefix[GCSettings.SaveMethod], folder, file);
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}
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CleanupPath(temppath); // cleanup path
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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()
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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 ();
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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, MAXJOLIET);
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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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/****************************************************************************
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* BrowserLoadSz
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*
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* Opens the selected 7z file, and parses a listing of the files within
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***************************************************************************/
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int BrowserLoadSz()
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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))
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return 0;
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int szfiles = SzParse(szpath);
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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 WiiFileLoader()
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{
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int size;
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char filepath[1024];
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memset(Memory.NSRTHeader, 0, sizeof(Memory.NSRTHeader));
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Memory.HeaderCount = 0;
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loadingFile = true;
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if(!inSz)
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{
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if(!MakeFilePath(filepath, FILE_ROM))
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return 0;
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size = LoadFile ((char *)Memory.ROM, filepath, browserList[browser.selIndex].length, NOTSILENT);
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}
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else
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{
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size = LoadSzFile(szpath, (unsigned char *)Memory.ROM);
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if(size <= 0)
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{
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browser.selIndex = 0;
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BrowserChangeFolder();
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}
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}
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loadingFile = false;
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if(size <= 0)
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return 0;
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SNESROMSize = Memory.HeaderRemove(size, Memory.HeaderCount, Memory.ROM);
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return SNESROMSize;
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}
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/****************************************************************************
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* BrowserLoadFile
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*
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* Loads the selected ROM
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***************************************************************************/
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int BrowserLoadFile()
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{
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int loaded = 0;
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int device;
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if(!FindDevice(browser.dir, &device))
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return 0;
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// check that this is a valid ROM
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if(!IsValidROM())
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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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S9xDeleteCheats();
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Memory.LoadROM("ROM");
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if (SNESROMSize <= 0)
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{
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ErrorPrompt("Error loading game!");
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}
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else
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{
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// load SRAM or snapshot
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if (GCSettings.AutoLoad == 1)
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LoadSRAMAuto(SILENT);
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else if (GCSettings.AutoLoad == 2)
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LoadSnapshotAuto(SILENT);
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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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/****************************************************************************
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* BrowserChangeFolder
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*
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* Update current directory and set new entry list if directory has changed
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***************************************************************************/
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int BrowserChangeFolder()
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{
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int device = 0;
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FindDevice(browser.dir, &device);
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if(inSz && browser.selIndex == 0) // inside a 7z, requesting to leave
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{
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inSz = false;
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SzClose();
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}
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if(!UpdateDirName())
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return -1;
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CleanupPath(browser.dir);
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HaltParseThread(); // halt parsing
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ResetBrowser(); // reset browser
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if(browser.dir[0] != 0)
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ParseDirectory();
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if(browser.numEntries == 0)
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{
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browser.dir[0] = 0;
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int i=0;
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AddBrowserEntry();
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sprintf(browserList[i].filename, "sd:/");
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sprintf(browserList[i].displayname, "SD Card");
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browserList[i].length = 0;
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browserList[i].mtime = 0;
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browserList[i].isdir = 1;
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browserList[i].icon = ICON_SD;
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i++;
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AddBrowserEntry();
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sprintf(browserList[i].filename, "usb:/");
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sprintf(browserList[i].displayname, "USB Mass Storage");
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browserList[i].length = 0;
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browserList[i].mtime = 0;
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browserList[i].isdir = 1;
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browserList[i].icon = ICON_USB;
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i++;
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#ifdef HW_RVL
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AddBrowserEntry();
|
|
sprintf(browserList[i].filename, "smb:/");
|
|
sprintf(browserList[i].displayname, "Network Share");
|
|
browserList[i].length = 0;
|
|
browserList[i].mtime = 0;
|
|
browserList[i].isdir = 1;
|
|
browserList[i].icon = ICON_SMB;
|
|
i++;
|
|
#endif
|
|
|
|
AddBrowserEntry();
|
|
sprintf(browserList[i].filename, "dvd:/");
|
|
sprintf(browserList[i].displayname, "Data DVD");
|
|
browserList[i].length = 0;
|
|
browserList[i].mtime = 0;
|
|
browserList[i].isdir = 1;
|
|
browserList[i].icon = ICON_DVD;
|
|
i++;
|
|
|
|
browser.numEntries += i;
|
|
}
|
|
|
|
if(browser.dir[0] == 0)
|
|
{
|
|
GCSettings.LoadFolder[0] = 0;
|
|
GCSettings.LoadMethod = 0;
|
|
}
|
|
else
|
|
{
|
|
char * path = StripDevice(browser.dir);
|
|
if(path != NULL)
|
|
strcpy(GCSettings.LoadFolder, path);
|
|
FindDevice(browser.dir, &GCSettings.LoadMethod);
|
|
}
|
|
|
|
return browser.numEntries;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* OpenROM
|
|
* Displays a list of ROMS on load device
|
|
***************************************************************************/
|
|
int
|
|
OpenGameList ()
|
|
{
|
|
int device = GCSettings.LoadMethod;
|
|
|
|
if(device == DEVICE_AUTO && strlen(GCSettings.LoadFolder) > 0)
|
|
device = autoLoadMethod();
|
|
|
|
// change current dir to roms directory
|
|
if(device > 0)
|
|
sprintf(browser.dir, "%s%s/", pathPrefix[device], GCSettings.LoadFolder);
|
|
else
|
|
browser.dir[0] = 0;
|
|
|
|
BrowserChangeFolder();
|
|
return browser.numEntries;
|
|
}
|