Homebrew Homebrew Development

[delsky]

When compiling freetype,

Spoiler: Error

configure: error: cannot find native C compiler
make[1]: *** [setup] Error 1
make[1]: Leaving directory '/c/devkitPro/3ds_portlibs/freetype-2.5.4'
make: *** [freetype] Error 2

Fix?

You may try to use MSys but you have to move your files at least to \devkitpro\msys\ (\devkitpro\msys\home\<username>\ is better to keep your folder clean).

 

[YugamiSekai]

Also, after compiling the portlibs,
I have a problem when compiling homebrew used by the 3DS Portlibs (Cyanogen3DS, sftdlib, sfillib):

Spoiler: Error

.../arm-none-eabi/bin/ld.exe error:

*.elf uses VFP register arguments, (freetype lib, png lib, libz).o does not

ld.exe: Failed to merge target specific data of file (libfreetype, libpng, libz).o

It does this for every (or most) .o files used in freetype, libpng, and whatever libz is. Also, I think it does it with libjpeg-turbo but most likely not.

I'm on Windows 8.1 using make.

Any fix on this?

 

[MasterFeizz]

Also, after compiling the portlibs,
I have a problem when compiling homebrew used by the 3DS Portlibs (Cyanogen3DS, sftdlib, sfillib):

Spoiler: Error

.../arm-none-eabi/bin/ld.exe error:

*.elf uses VFP register arguments, (freetype lib, png lib, libz).o does not

ld.exe: Failed to merge target specific data of file (libfreetype, libpng, libz).o

It does this for every (or most) .o files used in freetype, libpng, and whatever libz is. Also, I think it does it with libjpeg-turbo but most likely not.

I'm on Windows 8.1 using make.

Any fix on this?

Thats being caused by a floating-point ABI mismatch, you have to use the same one for the libraries and the main application. If you are using the example makefile, make sure you are passing this flag when compiling your libraries: -mfloat-abi=hard

 

[MRJPGames]

Does anyone know how to extract the romfs from a .3dsx homebrew? I recently lost a lot of my files due to a HDD failure, including some stuff for my homebrew. Though the code will have to be remade I would love it if I could extract the assets from the 3dsx that is still on my 3ds!

 

[darkxex]

Hi, sorry, like me now how import 3d models with animations, some example? thanks, i wait response.

 

[randomdev]

Hello, can anyone tell me how to make a very simple file manager (or at least redirect me to an existing homebrew)? thanks!

 

[darkxex]

download Fbi source code.

 

[RocketRobz]

How do I read profile settings from a 3DS system?

 

[Aeth-r]

Is there any work being done towards porting mugen or osu to 3ds homebrew?

 

[Tjessx]

Not sure if this thread is OK for arm9 development, please let me know if doesn't belong here.

I have a function to clear the top screen in an a9lh bin, just uses a memset to clear it directly:

void clear_main_lcd(void)
{
     memset(fb->top_left, 0, 0x46500);
}

It works, but you can see it progress from left to right, not so clean. Anybody have code to use double buffering in an a9lh bin, so I can zero the memory in a buffer and then flip it to what the LCD uses in a fast way so it looks clean?

i'm not 100% sure about this, but you could create a new u8 array (u8 screenBuffer[screenwidth * screen height * 3] and use that to write your changes to, then just change the pointer from your current screen buffer to this one? or something like that

 

[Tjessx]

Is there a simple file reading and writing example in c++?
I've been looking online for a working 3ds example,
I can get the file size, but the buffer stays empty.

 

[Joel16]

Is there a simple file reading and writing example in c++?
I've been looking online for a working 3ds example,
I can get the file size, but the buffer stays empty.

You can simply use the standard C functions. At least that's what I do.

 

[Tjessx]

You can simply use the standard C functions. At least that's what I do.

Could you post an example? for some reason it doesn't work.
(at least not in citra)

 

[Joel16]

Could you post an example? for some reason it doesn't work.
(at least not in citra)

File Reading:

void readFromFile(char * filePath, char data[])
{
    FILE * temp = fopen(filePath, "r");
    fscanf(temp, "%s", data);
    fclose(temp);
}

File Writing:

void writeToFile(char * filePath)
{
    FILE * temp = fopen(filePath, "w");// file path should be something like "/file.txt" - which would a file called 'file.txt' on the root of your memory stick
    fprintf(temp , "random file writing sample");
    fclose(temp );
}

so you'd have something like:

char str[256];
writeToFile("/file.txt");
readFromFile("/file.txt", str);

Then you can print the contents of str using printf, or whatever.

Edit: This should definitely work on a 3DS, don't know about Citra though.

 

[Tjessx]

What is the correct method to check the time? i've tried to use osGetTime(), but it doesn't return a correct value (3 times slower)
EDIT: only on citra

 

[darkxex]

stable payload for 11.0.0-33?

 

[YugamiSekai]

Anyone know if audio/video is possible with C? I want to make a PoC rhythm game.

 

[elhobbs]

Anyone know if audio/video is possible with C? I want to make a PoC rhythm game.

Yes, homebrew is possible with C.

 

[randomdev]

Does devkitarm r45 support c++11?

 

[elhobbs]

Does devkitarm r45 support c++11?

Yes, devkitarm is gcc version 5.3.0
https://gcc.gnu.org/projects/cxx-status.html