ROM Hack Can Xdelta patch iso's?

[godreborn]

While we're on the topic of applying patches, anyone able to save me the trouble and apply the patch file included with the source of this modified FAT module? I'm not sure which app to use to apply the patch or if it even matters for this particular patch file. The file is in the attachment to this post, thanks!
https://gbatemp.net/threads/ciosx-rev21d2x-yet-another-hot-fix.277659/page-163#post-5092147

you just have to replace the FAT library of beta-52. @Cyan showed me this when wiiware wouldn't work with ustealth. it works perfectly now. just replace, then reinstall beta-52. beta-53 doesn't even have a FAT library, which may be why it doesn't work well with wiiware.

 

[Jayro]

Another victim of the awful NKIT format.,., NKIT ruins everything. I'll stick with my perfectly-working .wbfs files, thanks.

 

[godreborn]

@XFlak , don't use it on the wii or on the wii u if you're not using ustealth. I don't know what might happen if you do. you get either a black screen or it returns to usb loader gx if you don't use the patch with wiiware/vc games.

 

[XFlak]

Works just fine. It's currently bundled in a modmii d2x beta along with the most recent fakemote. More info here: https://gbatemp.net/threads/best-wa...s-official-support-thread.207126/post-9740302

And I know we need to replace the fat library, but the provided source is just a patch file iirc, I think you'd need to dif/delta patch it against the original to get the new source for the new fat module. If I can get the patched source I can upload to davebaol's official d2x github

 

[godreborn]

you don't. just replace the FAT library. it's that simple. I've already done it.

 

[XFlak]

So in the rar there's the compiled fat.app binary, and a ff.c.patch with the following code, and nothing else

Spoiler

Index: ff.c =================================================================== --- ff.c(revision 54) +++ ff.c(working copy) @@ -1979,7 +1979,7 @@  {  if (disk_read(fs->drv, fs->win, sect, 1) != RES_OK)/* Load boot record */   return 3; -if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */ +if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55  && LD_WORD(&fs->win[BS_55AA]) != 0xAB55)/* Check record signature (always placed at offset 510 even if the sector size is >512) */   return 2;    if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146)/* Check "FAT" string */ @@ -2133,7 +2133,7 @@    fs->fsi_flag = 0;   fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo);   if (disk_read(fs->drv, fs->win, fs->fsi_sector, 1) == RES_OK && -  LD_WORD(fs->win+BS_55AA) == 0xAA55 && +  (LD_WORD(fs->win+BS_55AA) == 0xAA55 || LD_WORD(fs->win+BS_55AA) == 0xAB55)&&    LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 &&    LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) {     fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);

How is that supposed to directly replace ff.c that's almost 4000 lines saved here
https://github.com/davebaol/d2x-cios/blob/master/source/fat-module/ff.c

I'm not disputing I could be mistaken, but if so I'm definitely missing something

 

[godreborn]

just replace the FAT library. it works as I've tried it or what for @Cyan to chime in. it's meaningless for the wii. it's only for the wii u using ustealth. games either give a black screen or throw you back into the usb loader gx. I think the ff.c is just the modifications made to the original. it says where the changes have been made:

 

[godreborn]

as you can see, it only makes changes to line 1979+, and 2133+, it's not the full ff.c.

 

[godreborn]

here's it working w/ ustealth and emunand:

 

[XFlak]

It's not meaningless for the wii, if someone has a wii and a wiiu, and they have a shared hdd for wii and vWii, and they have ustealth applied to the drive, emunand gamesaves won't work without the modified FAT module on either wii or vwii

Please shoot me over the updated /complete ff.c if u don't mind and have it handy

Edit: or I will look at it later when I'm near my pc, too much effort on mobile, maybe it's the Android text editing apps I'm using but the patch file appears to be missing linebreaks

Edit2: yeah on my mobile it was missing line breaks, I should've just looked at this on PC before troubling you guys so much, apologies and thanks for your patience

 

[godreborn]

I think you're making it too complicated than it needs to be. I'm starting to get agitated, so I'm signing off for the day.

 

[fledge68]

It's not meaningless for the wii, if someone has a wii and a wiiu, and they have a shared hdd for wii and vWii, and they have ustealth applied to the drive, emunand gamesaves won't work without the modified FAT module on either wii or vwii

Please shoot me over the updated /complete ff.c if u don't mind and have it handy

Edit: or I will look at it later when I'm near my pc, too much effort on mobile, maybe it's the Android text editing apps I'm using but the patch file appears to be missing linebreaks

hey buddy do you have notepad++? if so just download ff.c and open it in notepad++. then change the 2 lines noted in the patch file (line #1982 and #2136) and save .

https://github.com/davebaol/d2x-cios/blob/master/source/fat-module/ff.c

 

[XFlak]

Will do, thx

 

[XFlak]

I think you're making it too complicated than it needs to be. I'm starting to get agitated, so I'm signing off for the day.

Yeah you're probably right, lol, sorry about that

Edit: yeah on my mobile it was missing line breaks, I should've just looked at this on PC before troubling you guys so much, apologies and thanks for your patience

 

[XFlak]

hey buddy do you have notepad++? if so just download ff.c and open it in notepad++. then change the 2 lines noted in the patch file (line #1982 and #2136) and save .

https://github.com/davebaol/d2x-cios/blob/master/source/fat-module/ff.c

I think I did it correctly, do you mind telling me if this looks right?
https://github.com/davebaol/d2x-cios/compare/master@{1day}...master

 

[godreborn]

Yeah you're probably right, lol, sorry about that

Edit: yeah on my mobile it was missing line breaks, I should've just looked at this on PC before troubling you guys so much, apologies and thanks for your patience

haha, I was worried about that post, didn't sleep right. I thought it came off wrong. I wasn't agitated with you, just get agitated for no real reason at times. that's usually when I don't post anymore that day and lie down, wait for dinner.

 

[Cyan]

This is not a xdelta binary patch, it's a text patch.
the .patch file is a SVN file format, you need SVN program or TortoiseSVN installed to "apply" the change to the ff.c sources. (put the patch in the root of the project, right click the patch file, choose tortoise, choose apply, or double-click on it it, or use a command line to apply the patch)
or just open the patch in notepad, read what you see. it contains the line number to change, the old version and the new version.

There's only 2 lines to update, and then you need to recompile cIOS d2x FAT library if you want to get the fat.app binary file yourself.
or just use the one provided in the package.


You are right for the fact that Wii owners might benefit from it too, in case their drive(s) are Ustealth'd too.

 

[godreborn]

This is not a xdelta binary patch, it's a text patch.
the .patch file is a SVN file format, you need SVN program or TortoiseSVN installed to "apply" the change to the ff.c sources. (put the patch in the root of the project, right click the patch file, choose tortoise, choose apply, or double-click on it it, or use a command line to apply the patch)
or just open the patch in notepad, read what you see. it contains the line number to change, the old version and the new version.

There's only 2 lines to update, and then you need to recompile cIOS d2x FAT library if you want to get the fat.app binary file yourself.
or just use the one provided in the package.

yeah, that's where I was confused. sorry @XFlak , I was trying to get you to use the FAT library provided, because it's not necessary to patch the file yourself unless you really want to. I installed TortoiseSVN quite some time ago, like when I got my laptop, but I was mainly using it to download git or other download links/checkout. I didn't realize it could add a patch like the one provided.

 

[Cyan]

the patch is for sources, you need to recompile the project after that (which would require old version of devkitpro ARMv32 for IOS compilation project if I remember correctly)

 

[godreborn]

the patch is for sources, you need to recompile the project after that (which would require old version of devkitpro ARMv32 for IOS compilation project if I remember correctly)

that I was aware of, but I didn't think about needing an old version of devkitpro. they suggest not using older versions, but it's the only way to compile some older projects, same with visual studio. it's a pita, had to put vs 2015 and 2019, both on the pc. not sure if you can have more than one devkitpro due to the environmental variables.