int SzExtractFile(int i, unsigned char *buffer)
{
// prepare some variables
SzBlockIndex = 0xFFFFFFFF;
SzOffset = 0;
// Unzip the file
SzRes = SzExtract2(
&SzArchiveStream.InStream,
&SzDb,
i, // index of file
&SzBlockIndex, // index of solid block
&buffer,
&SzBufferSize,
&SzOffset, // offset of stream for required file in *outBuffer
&SzOutSizeProcessed, // size of file in *outBuffer
&SzAllocImp,
&SzAllocTempImp);
// close 7Zip archive and free memory
SzClose();
// check for errors
if(SzRes != SZ_OK)
{
// display error message
SzDisplayError(SzRes);
return 0;
}
else
{
return SzOutSizeProcessed;
}
}
int SzParse(char * filepath)
{
if(!filepath)
return 0;
int device;
if(!FindDevice(browser.dir, &device) || !GetFileSize(browser.selIndex))
return 0;
int nbfiles = 0;
// save the length/offset of this file
unsigned int filelen = browserList[browser.selIndex].length;
// setup archive stream
SzArchiveStream.offset = 0;
SzArchiveStream.len = filelen;
SzArchiveStream.pos = 0;
// open file
file = fopen (filepath, "rb");
if(!file)
return 0;
// set szMethod to current chosen load device
szMethod = device;
// set handler functions for reading data from SD/USB/SMB/DVD
SzArchiveStream.InStream.Read = SzFileReadImp;
SzArchiveStream.InStream.Seek = SzFileSeekImp;
// set default 7Zip SDK handlers for allocation and freeing memory
SzAllocImp.Alloc = SzAlloc;
SzAllocImp.Free = SzFree;
SzAllocTempImp.Alloc = SzAllocTemp;
SzAllocTempImp.Free = SzFreeTemp;
// prepare CRC and 7Zip database structures
InitCrcTable();
SzArDbExInit(&SzDb);
// open the archive
SzRes = SzArchiveOpen(&SzArchiveStream.InStream, &SzDb, &SzAllocImp,
&SzAllocTempImp);
if (SzRes != SZ_OK)
{
SzDisplayError(SzRes);
// free memory used by the 7z SDK
SzClose();
}
else // archive opened successfully
{
if(SzDb.Database.NumFiles > 0)
{
// Parses the 7z into a full file listing
HaltParseThread(); // halt parsing
ResetBrowser(); // reset browser
// add '..' folder in case the user wants exit the 7z
AddBrowserEntry();
sprintf(browserList[0].displayname, "Up One Level");
browserList[0].isdir = 1;
browserList[0].length = filelen;
browserList[0].icon = ICON_FOLDER;
// get contents and parse them into file list structure
unsigned int SzI, SzJ;
SzJ = 1;
for (SzI = 0; SzI < SzDb.Database.NumFiles; SzI++)
{
SzF = SzDb.Database.Files + SzI;
// skip directories
if (SzF->IsDirectory)
continue;
if(!AddBrowserEntry())
{
ResetBrowser();
ErrorPrompt("Out of memory: too many files!");
SzClose();
SzJ = 0;
break;
}
// parse information about this file to the file list structure
snprintf(browserList[SzJ].filename, MAXJOLIET, "%s", SzF->Name);
StripExt(browserList[SzJ].displayname, browserList[SzJ].filename);
browserList[SzJ].length = SzF->Size; // filesize
browserList[SzJ].isdir = 0; // only files will be displayed (-> no flags)
browserList[SzJ].filenum = SzI; // the extraction function identifies the file with this number
SzJ++;
}
nbfiles = SzJ;
}
else
{
SzClose();
}
}
CancelAction();
// close file
fclose(file);
return nbfiles;
}
/****************************************************************************
* BrowserChangeFolder
*
* Update current directory and set new entry list if directory has changed
***************************************************************************/
int BrowserChangeFolder()
{
int device = 0;
FindDevice(browser.dir, &device);
if(inSz && browser.selIndex == 0) // inside a 7z, requesting to leave
{
inSz = false;
SzClose();
}
if(!UpdateDirName())
return -1;
HaltParseThread();
CleanupPath(browser.dir);
ResetBrowser();
if(browser.dir[0] != 0)
{
if(strstr(browser.dir, ".7z"))
{
BrowserLoadSz();
}
else
{
ParseDirectory(true, true);
}
FindAndSelectLastLoadedFile();
}
if(browser.numEntries == 0)
{
browser.dir[0] = 0;
int i=0;
#ifdef HW_RVL
AddBrowserEntry();
sprintf(browserList[i].filename, "sd:/");
sprintf(browserList[i].displayname, "SD Card");
browserList[i].length = 0;
browserList[i].isdir = 1;
browserList[i].icon = ICON_SD;
i++;
AddBrowserEntry();
sprintf(browserList[i].filename, "usb:/");
sprintf(browserList[i].displayname, "USB Mass Storage");
browserList[i].length = 0;
browserList[i].isdir = 1;
browserList[i].icon = ICON_USB;
i++;
#else
AddBrowserEntry();
sprintf(browserList[i].filename, "carda:/");
sprintf(browserList[i].displayname, "SD Gecko Slot A");
browserList[i].length = 0;
browserList[i].isdir = 1;
browserList[i].icon = ICON_SD;
i++;
AddBrowserEntry();
sprintf(browserList[i].filename, "cardb:/");
sprintf(browserList[i].displayname, "SD Gecko Slot B");
browserList[i].length = 0;
browserList[i].isdir = 1;
browserList[i].icon = ICON_SD;
i++;
#endif
AddBrowserEntry();
sprintf(browserList[i].filename, "smb:/");
sprintf(browserList[i].displayname, "Network Share");
browserList[i].length = 0;
browserList[i].isdir = 1;
browserList[i].icon = ICON_SMB;
i++;
AddBrowserEntry();
sprintf(browserList[i].filename, "dvd:/");
sprintf(browserList[i].displayname, "Data DVD");
browserList[i].length = 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;
}
/****************************************************************************
* FileSelector
*
* Let user select a file from the listing
***************************************************************************/
int FileSelector (int method)
{
u32 p = 0;
u32 wp = 0;
u32 ph = 0;
u32 wh = 0;
signed char gc_ay = 0;
signed char gc_sx = 0;
signed char wm_ay = 0;
signed char wm_sx = 0;
int haverom = 0;
int redraw = 1;
int selectit = 0;
int scroll_delay = 0;
bool move_selection = 0;
#define SCROLL_INITIAL_DELAY 15
#define SCROLL_LOOP_DELAY 2
while (haverom == 0)
{
if (redraw)
ShowFiles (filelist, maxfiles, offset, selection);
redraw = 0;
VIDEO_WaitVSync(); // slow things down a bit so we don't overread the pads
gc_ay = PAD_StickY (0);
gc_sx = PAD_SubStickX (0);
p = PAD_ButtonsDown (0);
ph = PAD_ButtonsHeld (0);
#ifdef HW_RVL
wm_ay = WPAD_Stick (0, 0, 0);
wm_sx = WPAD_Stick (0, 1, 1);
wp = WPAD_ButtonsDown (0);
wh = WPAD_ButtonsHeld (0);
#endif
/*** Check for exit combo ***/
if ( (gc_sx < -70) || (wm_sx < -70) || (wp & WPAD_BUTTON_HOME) || (wp & WPAD_CLASSIC_BUTTON_HOME) )
return 0;
/*** Check buttons, perform actions ***/
if ( (p & PAD_BUTTON_A) || selectit || (wp & (WPAD_BUTTON_A | WPAD_CLASSIC_BUTTON_A)) )
{
if ( selectit )
selectit = 0;
if (filelist[selection].flags) // This is directory
{
/* update current directory and set new entry list if directory has changed */
int status;
if(inSz && selection == 0) // inside a 7z, requesting to leave
{
if(method == METHOD_DVD)
{
// go to directory the 7z was in
dvddir = filelist[0].offset;
dvddirlength = filelist[0].length;
}
inSz = false;
status = 1;
SzClose();
}
else
{
status = UpdateDirName(method);
}
if (status == 1) // ok, open directory
{
switch (method)
{
case METHOD_SD:
case METHOD_USB:
maxfiles = ParseFATdirectory(method);
break;
case METHOD_DVD:
maxfiles = ParseDVDdirectory();
break;
case METHOD_SMB:
maxfiles = ParseSMBdirectory();
break;
}
if (!maxfiles)
{
WaitPrompt ((char*) "Error reading directory !");
haverom = 1; // quit menu
}
}
else if (status == -1) // directory name too long
{
haverom = 1; // quit menu
}
}
else // this is a file
{
// 7z file - let's open it up to select a file inside
if(IsSz())
{
// we'll store the 7z filepath for extraction later
if(!MakeROMPath(szpath, method))
{
WaitPrompt((char*) "Maximum filepath length reached!");
return -1;
}
int szfiles = SzParse(szpath, method);
if(szfiles)
{
maxfiles = szfiles;
inSz = true;
}
else
WaitPrompt((char*) "Error opening archive!");
}
else
{
// store the filename (w/o ext) - used for sram/freeze naming
StripExt(ROMFilename, filelist[selection].filename);
ShowAction ((char *)"Loading...");
ROMLoaded = LoadVBAROM(method);
inSz = false;
if (ROMLoaded)
{
return 1;
}
else
{
WaitPrompt((char*) "Error loading ROM!");
}
}
}
redraw = 1;
} // End of A
if ( (p & PAD_BUTTON_B) || (wp & (WPAD_BUTTON_B | WPAD_CLASSIC_BUTTON_B)) )
{
while ( (PAD_ButtonsDown(0) & PAD_BUTTON_B)
#ifdef HW_RVL
|| (WPAD_ButtonsDown(0) & (WPAD_BUTTON_B | WPAD_CLASSIC_BUTTON_B))
#endif
)
VIDEO_WaitVSync();
if ( strcmp(filelist[0].filename,"..") == 0 )
{
selection = 0;
selectit = 1;
}
else if ( strcmp(filelist[1].filename,"..") == 0 )
{
selection = selectit = 1;
} else {
return 0;
}
} // End of B
if ( ((p | ph) & PAD_BUTTON_DOWN) || ((wp | wh) & (WPAD_BUTTON_DOWN | WPAD_CLASSIC_BUTTON_DOWN)) || (gc_ay < -PADCAL) || (wm_ay < -PADCAL) )
{
if ( (p & PAD_BUTTON_DOWN) || (wp & (WPAD_BUTTON_DOWN | WPAD_CLASSIC_BUTTON_DOWN)) ) { /*** Button just pressed ***/
scroll_delay = SCROLL_INITIAL_DELAY; // reset scroll delay.
move_selection = 1; //continue (move selection)
}
else if (scroll_delay == 0) { /*** Button is held ***/
scroll_delay = SCROLL_LOOP_DELAY;
move_selection = 1; //continue (move selection)
} else {
scroll_delay--; // wait
}
if (move_selection)
{
selection++;
if (selection == maxfiles)
selection = offset = 0;
if ((selection - offset) >= PAGESIZE)
offset += PAGESIZE;
redraw = 1;
move_selection = 0;
}
} // End of down
if ( ((p | ph) & PAD_BUTTON_UP) || ((wp | wh) & (WPAD_BUTTON_UP | WPAD_CLASSIC_BUTTON_UP)) || (gc_ay > PADCAL) || (wm_ay > PADCAL) )
{
if ( (p & PAD_BUTTON_UP) || (wp & (WPAD_BUTTON_UP | WPAD_CLASSIC_BUTTON_UP)) ) { /*** Button just pressed***/
scroll_delay = SCROLL_INITIAL_DELAY; // reset scroll delay.
move_selection = 1; //continue (move selection)
}
else if (scroll_delay == 0) { /*** Button is held ***/
scroll_delay = SCROLL_LOOP_DELAY;
move_selection = 1; //continue (move selection)
} else {
scroll_delay--; // wait
}
if (move_selection)
{
selection--;
if (selection < 0) {
selection = maxfiles - 1;
offset = selection - PAGESIZE + 1;
}
if (selection < offset)
offset -= PAGESIZE;
if (offset < 0)
offset = 0;
redraw = 1;
move_selection = 0;
}
} // End of Up
if ( (p & PAD_BUTTON_LEFT) || (wp & (WPAD_BUTTON_LEFT | WPAD_CLASSIC_BUTTON_LEFT)) )
{
/*** Go back a page ***/
selection -= PAGESIZE;
if (selection < 0)
{
selection = maxfiles - 1;
offset = selection - PAGESIZE + 1;
}
if (selection < offset)
offset -= PAGESIZE;
if (offset < 0)
offset = 0;
redraw = 1;
}
if ( (p & PAD_BUTTON_RIGHT) || (wp & (WPAD_BUTTON_RIGHT | WPAD_CLASSIC_BUTTON_RIGHT)) )
{
/*** Go forward a page ***/
selection += PAGESIZE;
if (selection > maxfiles - 1)
selection = offset = 0;
if ((selection - offset) >= PAGESIZE)
offset += PAGESIZE;
redraw = 1;
}
}
return 0;
}
int SzParse(char * filepath, int method)
{
int nbfiles = 0;
// save the offset and the length of this file inside the archive stream structure
SzArchiveStream.offset = filelist[selection].offset;
SzArchiveStream.len = filelist[selection].length;
SzArchiveStream.pos = 0;
// open file
switch (method)
{
case METHOD_SD:
case METHOD_USB:
fatfile = fopen (filepath, "rb");
if(!fatfile)
return 0;
break;
case METHOD_SMB:
smbfile = OpenSMBFile(filepath);
if(!smbfile)
return 0;
break;
}
// set szMethod to current chosen load method
szMethod = method;
// set handler functions for reading data from FAT/SMB/DVD
SzArchiveStream.InStream.Read = SzFileReadImp;
SzArchiveStream.InStream.Seek = SzFileSeekImp;
// set default 7Zip SDK handlers for allocation and freeing memory
SzAllocImp.Alloc = SzAlloc;
SzAllocImp.Free = SzFree;
SzAllocTempImp.Alloc = SzAllocTemp;
SzAllocTempImp.Free = SzFreeTemp;
// prepare CRC and 7Zip database structures
InitCrcTable();
SzArDbExInit(&SzDb);
// open the archive
SzRes = SzArchiveOpen(&SzArchiveStream.InStream, &SzDb, &SzAllocImp,
&SzAllocTempImp);
if (SzRes != SZ_OK)
{
SzDisplayError(SzRes);
// free memory used by the 7z SDK
SzClose();
}
else // archive opened successfully
{
if(SzDb.Database.NumFiles > 0)
{
// Parses the 7z into a full file listing
// erase all previous entries
memset(&filelist, 0, sizeof(FILEENTRIES) * MAXFILES);
// add '..' folder in case the user wants exit the 7z
strncpy(filelist[0].displayname, "..", 2);
filelist[0].flags = 1;
filelist[0].offset = dvddir;
filelist[0].length = dvddirlength;
// get contents and parse them into file list structure
unsigned int SzI, SzJ;
SzJ = 1;
for (SzI = 0; SzI < SzDb.Database.NumFiles; SzI++)
{
SzF = SzDb.Database.Files + SzI;
// skip directories
if (SzF->IsDirectory)
continue;
// do not exceed MAXFILES to avoid possible buffer overflows
if (SzJ == (MAXFILES - 1))
break;
// parse information about this file to the dvd file list structure
strncpy(filelist[SzJ].filename, SzF->Name, MAXJOLIET); // copy joliet name (useless...)
filelist[SzJ].filename[MAXJOLIET] = 0; // terminate string
strncpy(filelist[SzJ].displayname, SzF->Name, MAXDISPLAY+1); // crop name for display
filelist[SzJ].length = SzF->Size; // filesize
filelist[SzJ].offset = SzI; // the extraction function identifies the file with this number
filelist[SzJ].flags = 0; // only files will be displayed (-> no flags)
SzJ++;
}
// update maxfiles and select the first entry
offset = selection = 0;
nbfiles = SzJ;
}
else
{
SzArDbExFree(&SzDb, SzAllocImp.Free);
}
}
// close file
switch (method)
{
case METHOD_SD:
case METHOD_USB:
fclose(fatfile);
break;
case METHOD_SMB:
SMB_CloseFile (smbfile);
break;
}
return nbfiles;
}
int SzParse(char * filepath, int method)
{
if(!filepath)
return 0;
int nbfiles = 0;
// save the length/offset of this file
unsigned int filelen = browserList[browser.selIndex].length;
u64 fileoff = browserList[browser.selIndex].offset;
// setup archive stream
SzArchiveStream.offset = 0;
SzArchiveStream.len = filelen;
SzArchiveStream.pos = 0;
// open file
switch (method)
{
case METHOD_SD:
case METHOD_USB:
case METHOD_SMB:
file = fopen (filepath, "rb");
if(!file)
return 0;
break;
case METHOD_DVD:
SwitchDVDFolder(filepath);
break;
}
// set szMethod to current chosen load method
szMethod = method;
// set handler functions for reading data from SD/USB/SMB/DVD
SzArchiveStream.InStream.Read = SzFileReadImp;
SzArchiveStream.InStream.Seek = SzFileSeekImp;
// set default 7Zip SDK handlers for allocation and freeing memory
SzAllocImp.Alloc = SzAlloc;
SzAllocImp.Free = SzFree;
SzAllocTempImp.Alloc = SzAllocTemp;
SzAllocTempImp.Free = SzFreeTemp;
// prepare CRC and 7Zip database structures
InitCrcTable();
SzArDbExInit(&SzDb);
// open the archive
SzRes = SzArchiveOpen(&SzArchiveStream.InStream, &SzDb, &SzAllocImp,
&SzAllocTempImp);
if (SzRes != SZ_OK)
{
SzDisplayError(SzRes);
// free memory used by the 7z SDK
SzClose();
}
else // archive opened successfully
{
if(SzDb.Database.NumFiles > 0)
{
// Parses the 7z into a full file listing
// reset browser
ResetBrowser();
// add '..' folder in case the user wants exit the 7z
strncpy(browserList[0].displayname, "..", 2);
browserList[0].isdir = 1;
browserList[0].offset = fileoff;
browserList[0].length = filelen;
// get contents and parse them into file list structure
unsigned int SzI, SzJ;
SzJ = 1;
for (SzI = 0; SzI < SzDb.Database.NumFiles; SzI++)
{
SzF = SzDb.Database.Files + SzI;
// skip directories
if (SzF->IsDirectory)
continue;
BROWSERENTRY * newBrowserList = (BROWSERENTRY *)realloc(browserList, (SzJ+1) * sizeof(BROWSERENTRY));
if(!newBrowserList) // failed to allocate required memory
{
ResetBrowser();
WaitPrompt("Out of memory: too many files!");
nbfiles = 0;
break;
}
else
{
browserList = newBrowserList;
}
memset(&(browserList[SzJ]), 0, sizeof(BROWSERENTRY)); // clear the new entry
// parse information about this file to the dvd file list structure
strncpy(browserList[SzJ].filename, SzF->Name, MAXJOLIET); // copy joliet name (useless...)
strncpy(browserList[SzJ].displayname, SzF->Name, MAXDISPLAY); // crop name for display
browserList[SzJ].length = SzF->Size; // filesize
browserList[SzJ].offset = SzI; // the extraction function identifies the file with this number
browserList[SzJ].isdir = 0; // only files will be displayed (-> no flags)
SzJ++;
}
nbfiles = SzJ;
}
else
{
SzArDbExFree(&SzDb, SzAllocImp.Free);
}
}
// close file
switch (method)
{
case METHOD_SD:
case METHOD_USB:
case METHOD_SMB:
fclose(file);
break;
}
return nbfiles;
}
