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snes9xgx/source/ngc/filesel.cpp
dborth 65984b9102 [What Was New 004 - August 5, 2008] 
- added: option to disable AA filtering 
         (snes graphics 'crisper', AA now default OFF)
- added: mapped zooming and turbo mode to classic controller
- added: preliminary usb support (loading)
- changed: sram and freezes now saved by filename, not internal romname. 
           If you have multiple versions of the same game, you can now have 
           srams and freezes for each version. A prompt to convert to the 
           new naming is provided for sram only.
- changed: by default, autoload/save sram and freeze enabled
2008-10-16 01:52:18 +00:00

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/****************************************************************************
* Snes9x 1.50
*
* Nintendo Gamecube Filesel - borrowed from GPP
*
* softdev July 2006
* svpe June 2007
* crunchy2 May-July 2007
****************************************************************************/
#include <gccore.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wiiuse/wpad.h>
#include <fat.h>
#include <sys/dir.h>
#include "snes9x.h"
#include "memmap.h"
#include "debug.h"
#include "cpuexec.h"
#include "ppu.h"
#include "apu.h"
#include "display.h"
#include "gfx.h"
#include "soundux.h"
#include "spc700.h"
#include "spc7110.h"
#include "controls.h"
#include "snes9xGx.h"
#include "dvd.h"
#include "ftfont.h"
#include "video.h"
#include "aram.h"
#include "unzip.h"
#include "filesel.h"
#include "smbload.h"
#include "sdload.h"
#include "mcsave.h"
#define PAGESIZE 17
int maxfiles;
int havedir = 0;
int hasloaded = 0;
int loadtype = 0;
int LoadDVDFile (unsigned char *buffer);
bool haveSDdir = 0;
bool haveUSBdir = 0;
extern unsigned long ARAM_ROMSIZE;
extern int screenheight;
extern FILEENTRIES filelist[MAXFILES];
/**
* Showfile screen
*
* Display the file selection to the user
*/
static void
ShowFiles (int offset, int selection)
{
int i, j;
char text[MAXPATHLEN];
int ypos;
int w;
setfontsize(18);
clearscreen ();
ypos = (screenheight - ((PAGESIZE - 1) * 20)) >> 1;
if (screenheight == 480)
ypos += 24;
else
ypos += 10;
j = 0;
for (i = offset; i < (offset + PAGESIZE) && (i < maxfiles); i++)
{
if (filelist[i].flags) // if a dir
{
strcpy (text, "[");
strcat (text, filelist[i].displayname);
strcat (text, "]");
}
else
strcpy (text, filelist[i].displayname);
if (j == (selection - offset))
{
/*** Highlighted text entry ***/
for ( w = 0; w < 20; w++ )
DrawLineFast( 30, 610, ( j * 20 ) + (ypos-16) + w, 0x80, 0x80, 0x80 );
setfontcolour (0x00, 0x00, 0xe0);
DrawText (-1, (j * 20) + ypos, text);
setfontcolour (0x00, 0x00, 0x00);
}
else
{
/*** Normal entry ***/
DrawText (-1, (j * 20) + ypos, text);
}
j++;
}
showscreen ();
}
/**
* SNESROMSOffset
*
* Function to check for and return offset to a directory called SNESROMS, if
* any
*/
int SNESROMSOffset()
{
int i;
for ( i = 0; i < maxfiles; i++ )
if (strcmp(filelist[i].filename, "SNESROMS") == 0)
return i;
return 0;
}
void strip_ext(char* inputstring, char* returnstring)
{
char* loc_dot;
strcpy (returnstring, inputstring);
loc_dot = strrchr(returnstring,'.');
if (loc_dot != NULL)
*loc_dot = '\0'; // strip file extension
return;
}
/**
* FileSelector
*
* Let user select a file from the DVD listing
*/
int offset = 0;
int selection = 0;
#define PADCAL 40
int
FileSelector ()
{
u32 p, wp, ph, wh;
signed char a, c;
int haverom = 0;
int redraw = 1;
int selectit = 0;
float mag = 0;
float mag2 = 0;
u16 ang = 0;
u16 ang2 = 0;
int scroll_delay = 0;
bool move_selection = 0;
#define SCROLL_INITIAL_DELAY 15
#define SCROLL_LOOP_DELAY 4
while (haverom == 0)
{
if (redraw)
ShowFiles (offset, selection);
redraw = 0;
VIDEO_WaitVSync(); // slow things down a bit so we don't overread the pads
p = PAD_ButtonsDown (0);
ph = PAD_ButtonsHeld (0);
#ifdef HW_RVL
wp = WPAD_ButtonsDown (0);
wh = WPAD_ButtonsHeld (0);
wpad_get_analogues(0, &mag, &ang, &mag2, &ang2); // get joystick info from wii expansions
#else
wp = 0;
wh = 0;
#endif
a = PAD_StickY (0);
c = PAD_SubStickX (0);
/*** Check for exit combo ***/
if ( (c < -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 ***/
{
if (loadtype == LOAD_SDC || loadtype == LOAD_USB)
{
/* memorize last entries list, actual root directory and selection for next access */
if (loadtype == LOAD_SDC)
haveSDdir = 1;
else
haveUSBdir = 1;
/* update current directory and set new entry list if directory has changed */
int status = updateFATdirname();
if (status == 1) // ok, open directory
{
maxfiles = parseFATdirectory();
if (!maxfiles)
{
WaitPrompt ((char*) "Error reading directory !");
haverom = 1; // quit SD menu
if (loadtype == LOAD_SDC) // reset everything at next access
haveSDdir = 0;
else
haveUSBdir = 0;
}
}
else if (status == -1) // directory name too long
{
haverom = 1; // quit SD menu
if (loadtype == LOAD_SDC) // reset everything at next access
haveSDdir = 0;
else
haveUSBdir = 0;
}
}
else
{
if ( (strcmp (filelist[selection].filename, "..") == 0)
&& ((unsigned int)rootdir == filelist[selection].offset) )
return 0;
else
{
rootdir = filelist[selection].offset;
rootdirlength = filelist[selection].length;
offset = selection = 0;
maxfiles = parsedirectory ();
}
}
}
else // this is a file
{
rootdir = filelist[selection].offset;
rootdirlength = filelist[selection].length;
/*** store the filename (used for sram/freeze naming) ***/
strip_ext(filelist[selection].filename, Memory.ROMFilename); // store stripped filename in Memory.ROMFilename
switch (loadtype)
{
case LOAD_DVD:
/*** Now load the DVD file to it's offset ***/
ARAM_ROMSIZE = LoadDVDFile (Memory.ROM);
break;
case LOAD_SMB:
/*** Load from SMB ***/
ARAM_ROMSIZE = LoadSMBFile (filelist[selection].filename,
filelist[selection].length);
break;
case LOAD_USB:
case LOAD_SDC:
/*** Load from SD Card ***/
/* memorize last entries list, actual root directory and selection for next access */
haveSDdir = 1;
ARAM_ROMSIZE = LoadSDFile (filelist[selection].filename,
filelist[selection].length);
break;
}
if (ARAM_ROMSIZE > 0)
{
hasloaded = 1;
Memory.LoadROM ("BLANK.SMC");
Memory.LoadSRAM ("BLANK");
haverom = 1;
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[1].filename,"..") == 0) && (strlen (filelist[0].filename) != 0))
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)) || (a < -PADCAL) || (mag>JOY_THRESHOLD && (ang>130 && ang<230)) )
{
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)) || (a > PADCAL) || (mag>JOY_THRESHOLD && (ang>300 || ang<50)) )
{
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;
}
/**
* OpenDVD
*
* Function to load a DVD directory and display to user.
*/
int
OpenDVD ()
{
int romsdiroffset = 0;
loadtype = LOAD_DVD;
if (!getpvd())
{
ShowAction((char*) "Mounting DVD ... Wait");
DVD_Mount(); /* mount the DVD unit again */
havedir = 0; /* this may be a new DVD: content need to be parsed again */
if (!getpvd())
return 0; /* no correct ISO9660 DVD */
}
if (havedir == 0)
{
offset = selection = 0; /* reset file selector */
haveSDdir = 0; /* prevent conflicts with SDCARD, USB file selector */
haveUSBdir = 0;
if ((maxfiles = parsedirectory ()))
{
if ( romsdiroffset = SNESROMSOffset() )
{
rootdir = filelist[romsdiroffset].offset;
rootdirlength = filelist[romsdiroffset].length;
offset = selection = 0;
maxfiles = parsedirectory ();
}
int ret = FileSelector ();
havedir = 1;
return ret;
}
}
else
return FileSelector ();
return 0;
}
/**
* OpenSMB
*
* Function to load from an SMB share
*/
int
OpenSMB ()
{
loadtype = LOAD_SMB;
if ((maxfiles = parseSMBDirectory ()))
{
char txt[80];
sprintf(txt,"maxfiles = %d", maxfiles);
return FileSelector ();
}
return 0;
}
// is_mounted
//
// to check whether FAT media are detected.
bool fat_is_mounted(PARTITION_INTERFACE partition) {
char prefix[] = "fatX:/";
prefix[3] = partition + '0';
DIR_ITER *dir = diropen(prefix);
if (dir) {
dirclose(dir);
return true;
}
return false;
}
void fat_enable_readahead_all() {
int i;
for (i=1; i <= 4; ++i) {
if (fat_is_mounted((PARTITION_INTERFACE)i)) fatEnableReadAhead((PARTITION_INTERFACE)i, 64, 128);
}
}
bool fat_remount(PARTITION_INTERFACE partition) {
//ShowAction("remounting...");
/* // removed to make usb work...
if (fat_is_mounted(partition))
{
fatUnmount(partition);
}
*/
fatMountNormalInterface(partition, 8);
fatSetDefaultInterface(partition);
//fatEnableReadAhead(partition, 64, 128);
if (fat_is_mounted(partition))
{
//ShowAction("remount successful.");
sleep(1);
return 1;
} else {
ShowAction("FAT mount failed.");
sleep(1);
return 0;
}
}
/**
* OpenSD
*
* Function to load from an SD Card
*/
int
OpenSD ()
{
char msg[80];
char buf[50] = "";
loadtype = LOAD_SDC;
/*
fatUnmount(PI_INTERNAL_SD);
fatMountNormalInterface(PI_INTERNAL_SD,8);
//fatEnableReadAhead(PI_INTERNAL_SD, 64, 128);
fatSetDefaultInterface(PI_INTERNAL_SD);
//chdir("fat0:/");
*/
#ifdef HW_RVL
// only remount on wii
if (!fat_remount (PI_INTERNAL_SD))
return 0;
#endif
if (haveSDdir == 0)
{
/* don't mess with DVD entries */
havedir = 0;
haveUSBdir = 0;
/* change current dir to snes roms directory */
sprintf ( currSDdir, "%s/%s", ROOTSDDIR, SNESROMDIR );
/* Parse initial root directory and get entries list */
if ((maxfiles = parseFATdirectory ()))
{
/* Select an entry */
return FileSelector ();
}
else
{
/* no entries found */
sprintf (msg, "No Files Found!");
WaitPrompt (msg);
return 0;
}
}
/* Retrieve previous entries list and made a new selection */
else
return FileSelector ();
return 0;
}
/**
* OpenUSB
*
* Function to load from a USB device (wii only)
*/
int
OpenUSB ()
{
char msg[80];
char buf[50] = "";
/*
//fatUnmount(PI_USBSTORAGE);
fatUnmount(PI_INTERNAL_SD);
//if(!fatMountNormalInterface(PI_USBSTORAGE,8))
// return 0;
//fatEnableReadAhead(PI_USBSTORAGE, 64, 128);
fatSetDefaultInterface(PI_USBSTORAGE);
*/
#ifdef HW_RVL
// make compiler happy
if (!fat_remount (PI_USBSTORAGE))
return 0;
#endif
loadtype = LOAD_USB;
if (haveUSBdir == 0)
{
/* don't mess with DVD, SDCARD entries */
havedir = 0;
haveSDdir = 0;
/* change current dir to snes roms directory */
sprintf ( currSDdir, "%s/%s", ROOTSDDIR, SNESROMDIR );
/* Parse initial root directory and get entries list */
if ((maxfiles = parseFATdirectory ()))
{
/* Select an entry */
return FileSelector ();
}
else
{
/* no entries found */
sprintf (msg, "No Files Found!");
WaitPrompt (msg);
return 0;
}
}
/* Retrieve previous entries list and made a new selection */
else
return FileSelector ();
return 0;
}
/**
* LoadDVDFile
*
* This function will load a file from DVD, in BIN, SMD or ZIP format.
* The values for offset and length are inherited from rootdir and
* rootdirlength.
*
* The buffer parameter should re-use the initial ROM buffer.
*/
int
LoadDVDFile (unsigned char *buffer)
{
int offset;
int blocks;
int i;
u64 discoffset;
char readbuffer[2048];
/*** SDCard Addition ***/
if (rootdirlength == 0)
return 0;
/*** How many 2k blocks to read ***/
blocks = rootdirlength / 2048;
offset = 0;
discoffset = rootdir;
ShowAction ((char*) "Loading ... Wait");
dvd_read (readbuffer, 2048, discoffset);
if (!IsZipFile (readbuffer))
{
for (i = 0; i < blocks; i++)
{
dvd_read (readbuffer, 2048, discoffset);
memcpy (buffer + offset, readbuffer, 2048);
offset += 2048;
discoffset += 2048;
}
/*** And final cleanup ***/
if (rootdirlength % 2048)
{
i = rootdirlength % 2048;
dvd_read (readbuffer, 2048, discoffset);
memcpy (buffer + offset, readbuffer, i);
}
}
else
{
return UnZipBuffer (buffer, discoffset, 1, NULL); // unzip from dvd
}
return rootdirlength;
}
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