Homebrew Homebrew Development

[zoogie]

So, I didnt know where to post this at so I'm asking my question here, is there a guide on how to MAKE Homebrew? not just being able to compile it/Collection of tools...... Sorry if this is in a wrong section

First learn C through one of many tutorials online. Then learn the specific 3ds functions/API by playing around with the examples included in ctrulib.
https://github.com/smealum/ctrulib/tree/master/examples

 

[Clydefrosch]

hey there, not sure if this is the right topic (its probably not but you guys most likely know) but I didn't want to make a new one just for this question
i'm on 9.9.0-26 E on an old 3ds with theme and tubehax working.
is there a reason for me not to update atm? cause there's some games that want patches from the eshop but i cant go there without updating and all

 

[Rinnegatamante]

Nevermidn, that isn't it since it hangs somewhere in this code:

int dim;
             char* query;
             if (totalSongs == 0){
               query = malloc(2);
               query[0] = ':';
               query[1] = 0;
               dim = 1;
             }else{
               query = parseSongs(songList, totalSongs);
               dim = 128*totalSongs;
             }

Which is extremely weird

I found something really weird in the code. It seems the send after the failed printf is correctly working, in fact, my 3DS socket receive the data normally.
What should happened?

 

[Tjessx]

It could be possible that the
sleep(1); isn't long enough for the text to print before the sockets takes over.
But that's pretty unlikely.

 

[Rinnegatamante]

It could be possible that the
sleep(1); isn't long enough for the text to print before the sockets takes over.
But that's pretty unlikely.

When i'll get the 3DS side working i'll try to increase the sleep value.
Stucked with 3DS side with the soc:U random initialization fail...

http://pastebin.com/M4erXPNb This code works fine.
If i de-comment the graphic related code (the 4 lines in the else clause), soc:U fails to initialize (and this code is never executed if soc:U fails to start.

 

[Rinnegatamante]

It could be possible that the
sleep(1); isn't long enough for the text to print before the sockets takes over.
But that's pretty unlikely.

Solved that strange problem by replacing all the printf calls with write syscalls (it should be what implicitly printf does but it seems it's a bit confused about sockets and stdout).

 

[rafalince]

Can I Install Homebrew in my 9.9 3ds ?

 

[rafalince]

How i do it, its possible without any game ? Where i find a tutorial ?

 

[Rinnegatamante]

How i do it, its possible without any game ? Where i find a tutorial ?

Maybe if you open link Tjessx posted...

 

[rafalince]

Oh , sorry and thanks. It did not Appeared in my pc. But Now i can see the link. Can i use that to do a downgrade and install CFW RXTOOLS to access the homebrew offline in future ?

 

[Tjessx]

Oh , sorry and thanks. It did not Appeared in my pc. But Now i can see the link. Can i use that to do a downgrade and install CFW RXTOOLS to access the homebrew offline in future ?

Nope, that's not possible with the current exploits we know

 

[rafalince]

Nope, that's not possible with the current exploits we know

OK, i tryied do the BrowserHax, but not occour when i start the browser.

 

[Rinnegatamante]

Is there something strange in this piece of code?

// Sending command to client
   char cmd[10];
   sprintf(cmd, "exec1:%i", idx);
   cmd[9] = 0;
   socketSend(Client, cmd);
  
   // Getting file info
   while (pkg == NULL) pkg = socketRecv(Client, 64);
   infoPacket = (char*)pkg->message;
   Songlist* song = getSong(idx);
  
   u64 fileSize = atoi(infoPacket);
   socketSend(Client, "OK");

First socketSend works correctly but 3DS crashes before sending the second ones.

(pkg is a Packet struct containing an array of char (nam), an u8* (message) allocated with linearAlloc and a u32 (size)).

What socketRecv should receive is the size of a file sent with this piece of code:

char info[64];
memset(&info, 0, 64);
sprintf(info, "%i", size);
write(my_socket->sock, info, 64);

 

[Rinnegatamante]

Is there some limitations about packet size for socketing?

It seems trying to receive something about 500 KB as packet corrupt it.

Here's my 3DS code (Receiver):

while (pkg == NULL) pkg = socketRecv(Client, 16384);
         u32 processedBytes = 0;
         songFile->audiobuf = (u8*)linearAlloc(songFile->mem_size);
         while (processedBytes < songFile->mem_size){
           if (pkg == NULL) break;
           memcpy(&songFile->audiobuf[processedBytes], pkg->message, pkg->size);
           processedBytes = processedBytes + pkg->size;
           linearFree(pkg->message);
           free(pkg);
           pkg = socketRecv(Client, 16384);         
         }

And here's PC ones (Sender):

char* buffer = malloc(STREAM_SIZE);
                 fread(buffer, STREAM_SIZE, 1, currentSong);
                 print("\nGET_SONG: Sending first block...");
                 write(my_socket->sock, buffer, STREAM_SIZE);
                 print(" Done!");

 

[Tjessx]

Is there some limitations about packet size for socketing?

No, else you wouldn't be able to use ftpservers for files bigger then 500KB as well.
I can't see anything wring with the code you've shown.
Maybe it's a problem with another part of the code.
Are you trying to stream a song? i might try that out tonight, will let you know if i can get it to work.

 

[Trinitro21]

Can someone point me to instructions on how to use the GPU functions in ctrulib? The examples don't help me.

 

[Tjessx]

Can someone point me to instructions on how to use the GPU functions in ctrulib? The examples don't help me.

You could take a look at the sf2d library

 

[Trinitro21]

You could take a look at the sf2d library

Alright, I'll look at it, but I'm interested in using the GPU functions in my programs. Specifically 3D stuff, which I'm pretty sure sf2dlib doesn't do. But the source code might be helpful since there are descriptions of what each function does.

 

[Tjessx]

Alright, I'll look at it, but I'm interested in using the GPU functions in my programs. Specifically 3D stuff, which I'm pretty sure sf2dlib doesn't do. But the source code might be helpful since there are descriptions of what each function does.

portal3DS in that case,
here is its source:
https://github.com/smealum/portal3DS

 

[Trinitro21]

portal3DS in that case,
here is its source:
https://github.com/smealum/portal3DS

Thanks! I'll see what I can get from that. I'm not very good at reading other people's code, especially when it's all over the place in different files like in C.