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Basic implementation of cache for the list of games to improve loading times for large directories. #1000

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Basic implementation of cache for the list of games to improve loading times for large directories. #1000

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62b0321
As requested by issue 701 [https://github.com/FIX94/Nintendont/issues…
jberron May 2, 2022
67fe980
Cache to speed up loading list of games
jberron May 3, 2022
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82 changes: 76 additions & 6 deletions loader/source/menu.c
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Original file line number Diff line number Diff line change
Expand Up @@ -305,6 +305,38 @@ static DevState LoadGameList(gameinfo *gi, u32 sz, u32 *pGameCount)
char filename[MAXPATHLEN]; // Current filename.
u8 buf[0x100]; // Disc header.
int gamecount = 0; // Current game count.
u32 i;
FIL f;
UINT wrote;

snprintf(filename, sizeof(filename), "%s:/gamecache.bin", GetRootDevice());
if (f_open_char(&f, filename, FA_OPEN_EXISTING | FA_READ) == FR_OK) {
f_read(&f, &gamecount, sizeof(gamecount), &wrote);
}
if (gamecount > 0)
{
for (i = 0; i < gamecount; ++i) {
uint8_t Revision;
uint8_t Flags;
char Name[255];
char Path[255];
char ID[6];
f_read(&f, &ID, 6, &wrote);
f_read(&f, &Name, 255, &wrote);
f_read(&f, &Revision, 1, &wrote);
f_read(&f, &Flags, 1, &wrote);
f_read(&f, &Path, 255, &wrote);
gi[i].Revision = Revision;
gi[i].Flags = Flags;
gi[i].Name = strdup((const char*)&Name);
memcpy(gi[i].ID, ID, 6);
gi[i].Path = strdup(Path);
}
f_close(&f);
if (pGameCount)
*pGameCount = gamecount;
return DEV_OK;
}

if( isWiiVC )
{
Expand Down Expand Up @@ -515,6 +547,24 @@ static DevState LoadGameList(gameinfo *gi, u32 sz, u32 *pGameCount)
if(gamecount == 0)
return DEV_NO_TITLES;

snprintf(filename, sizeof(filename), "%s:/gamecache.bin", GetRootDevice());
if (f_open_char(&f, filename, FA_WRITE | FA_CREATE_ALWAYS) == FR_OK) {
f_write(&f, &gamecount, sizeof(gamecount), &wrote);
for (i = 0; i < gamecount; ++i) {
const void *Revision = &gi[i].Revision;
const void *Flags = &gi[i].Flags;
const char Name[255] = "";
strcpy(Name, gi[i].Name);
const char Path[255] = "";
strcpy(Path, gi[i].Path);
f_write(&f, gi[i].ID, 6, &wrote);
f_write(&f, Name, 255, &wrote);
f_write(&f, Revision, 1, &wrote);
f_write(&f, Flags, 1, &wrote);
f_write(&f, Path, 255, &wrote);
}
f_close(&f);
}
return DEV_OK;
}

Expand Down Expand Up @@ -596,7 +646,7 @@ static bool UpdateGameSelectMenu(MenuCtx *ctx)
if (FPAD_Down_Repeat(ctx))
{
// Down: Move the cursor down by 1 entry.

// Remove the current arrow.
PrintFormat(DEFAULT_SIZE, BLACK, MENU_POS_X+51*6-8, MENU_POS_Y + 20*6 + ctx->games.posX * 20, " " );

Expand Down Expand Up @@ -773,7 +823,7 @@ static bool UpdateGameSelectMenu(MenuCtx *ctx)
}
}

if(ctx->games.gamecount && (ctx->games.scrollX + ctx->games.posX) >= 0
if(ctx->games.gamecount && (ctx->games.scrollX + ctx->games.posX) >= 0
&& (ctx->games.scrollX + ctx->games.posX) < ctx->games.gamecount)
{
ctx->games.canBeBooted = true;
Expand Down Expand Up @@ -1152,7 +1202,7 @@ static bool UpdateSettingsMenu(MenuCtx *ctx)
ctx->settings.posX = 0;
ctx->settings.settingPart ^= 1;
}

ctx->redraw = true;

}
Expand Down Expand Up @@ -1612,14 +1662,14 @@ static bool UpdateSettingsMenu(MenuCtx *ctx)
"%-18s:%-4s", "Network Profile", netProfile);
ListLoopIndex++;


// Controller slot for the Wii U gamepad.
if (ncfg->WiiUGamepadSlot < NIN_CFG_MAXPAD) {
PrintFormat(MENU_SIZE, (IsWiiU() ? BLACK : DARK_GRAY), MENU_POS_X+320, SettingY(ListLoopIndex),
"%-18s:%d", "WiiU Gamepad Slot", (ncfg->WiiUGamepadSlot + 1));
} else {
PrintFormat(MENU_SIZE, (IsWiiU() ? BLACK : DARK_GRAY), MENU_POS_X+320, SettingY(ListLoopIndex),
"%-18s:%-4s", "WiiU Gamepad Slot", "None");
"%-18s:%-4s", "WiiU Gamepad Slot", "None");
}
ListLoopIndex++;

Expand Down Expand Up @@ -1870,6 +1920,7 @@ static int SelectGame(void)
*/
bool SelectDevAndGame(void)
{
char filename[MAXPATHLEN]; // Current filename.
// Select the source device. (SD or USB)
bool SaveSettings = false;
bool redraw = true; // Need to draw the menu the first time.
Expand All @@ -1884,7 +1935,7 @@ bool SelectDevAndGame(void)
{
UseSD = (ncfg->Config & NIN_CFG_USB) == 0;
PrintInfo();
PrintButtonActions("Exit", "Select", NULL, NULL);
PrintButtonActions("Exit", "Select", NULL, "Clear Cache");
PrintFormat(DEFAULT_SIZE, BLACK, MENU_POS_X + 53 * 6 - 8, MENU_POS_Y + 20 * 6, UseSD ? ARROW_LEFT : "");
PrintFormat(DEFAULT_SIZE, BLACK, MENU_POS_X + 53 * 6 - 8, MENU_POS_Y + 20 * 7, UseSD ? "" : ARROW_LEFT);
PrintFormat(DEFAULT_SIZE, BLACK, MENU_POS_X + 47 * 6 - 8, MENU_POS_Y + 20 * 6, " SD ");
Expand Down Expand Up @@ -1919,6 +1970,25 @@ bool SelectDevAndGame(void)
ncfg->Config = ncfg->Config & ~NIN_CFG_USB;
redraw = true;
}
else if (FPAD_X(0))
{
PrintFormat(DEFAULT_SIZE, BLACK, MENU_POS_X + 47 * 6 - 8, MENU_POS_Y + 20 * 9, "Clearing Cache");
FIL f;
UINT wrote;
int zeroValue = 0;
static const char* const SdStr = "sd";
static const char* const UsbStr = "usb";
snprintf(filename, sizeof(filename), "%s:/gamecache.bin", SdStr);
if (f_unlink(filename) != 0)
if (f_open_char(&f, filename, FA_WRITE | FA_CREATE_ALWAYS) == FR_OK)
{f_write(&f, &zeroValue, sizeof(zeroValue), &wrote); f_close(&f);}
snprintf(filename, sizeof(filename), "%s:/gamecache.bin", UsbStr);
if (f_unlink(filename) != 0)
if (f_open_char(&f, filename, FA_WRITE | FA_CREATE_ALWAYS) == FR_OK)
{f_write(&f, &zeroValue, sizeof(zeroValue), &wrote);f_close(&f);}
PrintFormat(DEFAULT_SIZE, BLACK, MENU_POS_X + 47 * 6 - 8, MENU_POS_Y + 20 * 10, "Done");
redraw = true;
}
}

return SaveSettings;
Expand Down