Homebrew Homebrew Development

[zombigrn]

Noob here, are there any tutorials using builds as example? I see there is also programming via lua possible on the 3ds as well. Is lua a good place to start?

 

[ShinobuMeahera]

Can 3ds connect to wifi even if it doesn't have internet connection? (i mean using homebrew luncher)
I need to connect 3ds to ESP8266 and recive/send info.
Is it even possible?
I did connected to wifi network without internet using nintendo browser and some http server on my phone, but that is all.

 

[CuriousTommy]

I see there is also programming via lua possible on the 3ds as well. Is lua a good place to start?

It probably would be better to learn C or C++. Most 3DS code is in C. There might be certain things that you can't do in Lua that you can do in C or C++. Plus C (or C++) is more supported with other libraries than Lua.

Noob here, are there any tutorials using builds as example?

There is a guide on 3dbrew.

 

[RocketRobz]

How would I get my CIA to run in extended memory mode?

 

[zombigrn]

It probably would be better to learn C or C++. Most 3DS code is in C. There might be certain things that you can't do in Lua that you can do in C or C++. Plus C (or C++) is more supported with other libraries than Lua.


There is a guide on 3dbrew.

Nice. Thanks for the info, going to have to do a lot of reading on programming in c.
Wish I could just use game maker's drag and drop lol

 

[darkxex]

How can I call the video player of the new 3ds? or call the webbrowser for open a url?

 

[OctoNezd]

How do I download file? I tried everything, here is mine current code(server is currently down):

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <inttypes.h>

#include <3ds.h>

Result http_download(httpcContext *context)//This error handling needs updated with proper text printing once ctrulib itself supports that.
{
    Result ret=0;
    u8* framebuf_top;
    u32 statuscode=0;
    u32 size=0, contentsize=0;
    u8 *buf;

    ret = httpcBeginRequest(context);
    if(ret!=0)return ret;

    ret = httpcGetResponseStatusCode(context, &statuscode, 0);
    if(ret!=0)return ret;

    if(statuscode!=200)return -2;

    ret=httpcGetDownloadSizeState(context, NULL, &contentsize);
    if(ret!=0)return ret;

    printf("size: %"PRId32"\n",contentsize);
    gfxFlushBuffers();

    buf = (u8*)malloc(contentsize);
    //if(buf==NULL)return -1;
    ret = httpcDownloadData(context, buf, contentsize, NULL);
    return buf;
}

int main()
{
    Result ret=0;
    httpcContext context;
    FILE* file1 = fopen("test1.txt","wb");
    FILE* file2 = fopen("test2.txt","w");
    gfxInitDefault();
    httpcInit();

    consoleInit(GFX_BOTTOM,NULL);

    //Change this to your own URL.
    char *url = "http://194.87.95.146/test.txt";

    printf("Downloading %s\n",url);
    gfxFlushBuffers();

    ret = httpcOpenContext(&context, url, 1);
    printf("return from httpcOpenContext: %"PRId32"\n",ret);
    gfxFlushBuffers();

    if(ret==0)
    {
        ret=http_download(&context);
        printf("http_download %\n"PRId32, ret);
        printf("writing test1...");
        fprintf(file1, "%",ret);
        fclose(file1);
        printf("done\n");
        printf("writing test2...");
        fprintf(file2, "%s",ret);
        fclose(file2);
        printf("done\n");
        printf("validating test1...");
        FILE* file = fopen("test1.txt", "r");
        char* valid;
        fgets(valid,255,file);
        if (valid == "12345"){
            printf(":)\n");
        }
        else{
            printf(":(\n");
        }
        fclose(file);
        FILE* file1 = fopen("test2.txt", "r");
        char* valid1;
        fgets(valid1,255,file1);
        if (valid1 == "12345"){
            printf(":)\n");
        }
        else{
            printf(":(\n");
        }
        fclose(file1);
        printf("%s:%s", valid, valid1);
        gfxFlushBuffers();
        httpcCloseContext(&context);
    }

    // Main loop
    while (aptMainLoop())
    {
        gspWaitForVBlank();
        hidScanInput();

        // Your code goes here

        u32 kDown = hidKeysDown();
        if (kDown & KEY_START)
            break; // break in order to return to hbmenu

        // Flush and swap framebuffers
        gfxFlushBuffers();
        gfxSwapBuffers();
    }

    // Exit services
    httpcExit();
    gfxExit();
    return 0;
}

 

[YugamiSekai]

Does anyone know if it's possible to use Nintendo's model/animation format in homebrew? If so is it documented anywhere?

 

[GabeCello]

I'm really new to homebrew development and I've been following this tutorial, and I'm kind of having trouble getting my program to run properly
I'm at part 1.3, the application is supposed to launch, print "Hello world!", wait 10 seconds, then close, which my 3DS sort of does
The problem is though, that the "Hello world!" text is missing a big bunch of its pixels to the point where it's practically unreadable
What could be causing this?

Here's a picture I whipped up in Paint: (left is what should be coming out, right is what is actually being printed out)

 

[kasai07]

Yes Finish!!

 

[Sengoh]

So I've recently started learning C++, and managed to make some simple programs that display text and use button inputs. Right now I'm trying to make a program with an interface, and using the GUI Template as reference (although my code is pretty much just copy-paste from it at the moment). However, I get error when trying to use sftd. It builds fine, but when trying to launch the .3dsx with Citra, I get an endless error and it doesn't display the text. It does show texture, colors and rectangles from sf2d though. If try to run it on my 3ds, I just get a black screen and I have to turn it off. If I remove the sftd codes, I don't get any error, and it runs fine on both Citra and 3ds. I get the same errors after building the GUI Template, while the premade .3dsx runs fine. I feel like it has to be my libraries or something. Any ideas? I have download link to my project (my code may be a little messy). I’m using Visual Studio.
Not sure if I'm supposed to make a new thread or not, so I posted it here.

Download

 

[darkxex]

your freetype precompiled is wrong in windows...

 

[kasai07]

https://github.com/kasai07/EasyCTR9/releases/tag/EasyCTR9_200117

 

[Slimfr01]

Hello,
I have an issue for using Threads on a homebrew app.
When a create a new thread, with a loop in it, every other threads frooze ( including system ones ).

I create the thread with this :

ThreadFunc nfcEntry;
nfcEntry = (*nfcLoop)();

NFCThread = threadCreate(nfcEntry,0,1000,63,0,1);

( the complete file is availble here : https://github.com/Slimfr01/amiibo-Collection/blob/master/source/main.cpp )

Does anyone know how to fix the issue ?
Thank you.

 

[nop90]

Hello,
I have an issue for using Threads on a homebrew app.
When a create a new thread, with a loop in it, every other threads frooze ( including system ones ).

I create the thread with this :

ThreadFunc nfcEntry;
nfcEntry = (*nfcLoop)();

NFCThread = threadCreate(nfcEntry,0,1000,63,0,1);

( the complete file is availble here : https://github.com/Slimfr01/amiibo-Collection/blob/master/source/main.cpp )

Does anyone know how to fix the issue ?
Thank you.

3ds isn't really multithread: every thread has a priority and when higher priority threads are sleeping the first one eith lower priority can run, so use svcSleepThread(nanoseconds) in every thread loop. It's to you to calculate ne nanoseconds every thread has to sleep at every loop.

 

[Slimfr01]

3ds isn't really multithread: every thread has a priority and when higher priority threads are sleeping the first one eith lower priority can run, so use svcSleepThread(nanoseconds) in every thread loop. It's to you to calculate ne nanoseconds every thread has to sleep at every loop.

Thank's but apparently there is a problem elsewhere too. When I create a Thread, regardless of the priority ( 0x18 or 0x3F ) and the sleeping time ( even at 10 seconds ), system threads ( including home button and off button ) and the main application thread doesn't seem to respond during the sleep time.

 

[Canzah]

I'm having a problem compiling SNES9x, supposedly due to changes implemented in ctrulib 1.2.0 that came out few days ago.

Problem is that the devkitpro has also been update alongside it and now it's impossible to compile ctrulib 1.1.0 and there's only source available on the git https://github.com/smealum/ctrulib/releases

Could anyone provide me with compiled binaries of ctrulib 1.1.0?

 

[drafael0220]

ty

 

[Manurocker95]

Yo! I'm having troubles with sftd as I dunno why.

First I'm loading a font using

sftd_font* font = sftd_load_font_file(<Path to the .ttf>);

But whenever I want to draw a text with sftd_draw_text, it simply does nothing (Except slowing soooo much the program). In Citra I can see the error message Failed to get a handle for file, so what kind of fonts can I use, as it seems it cannot use .ttf? Or how do I do it?

 

[cheuble]

Yo! I'm having troubles with sftd as I dunno why.

First I'm loading a font using

sftd_font* font = sftd_load_font_file(<Path to the .ttf>);

But whenever I want to draw a text with sftd_draw_text, it simply does nothing (Except slowing soooo much the program). In Citra I can see the error message Failed to get a handle for file, so what kind of fonts can I use, as it seems it cannot use .ttf? Or how do I do it?

Looks like I'm not the only one who noticed the issue. There seems to be a problem while loading the file from the SD Card. The conflict comes from the newest ctrulib. I found a quick fix for this: load the font file from a buffer.