Grrlib examples for the Gamecube

[shazz]

Hi there!
I modified the examples to work on the gamecube but for some that's just a black screen and I cannot find why.
The culprits:

• bitmap_fx: black screen
• funsin: black screen
• unlimited3d (red flashing screen, buggy cubes) => memory issue ?

the ports are available here!

[Crayon2000]

Hello @shazz, I tried to generate those projects in the gamecube-examples branch and tested it in Dolphin. The 3 examples you are mentioning seems to works in the emulator. I don't own a GameCube, would it be possible to test what was generated by the GitHub Actions: https://github.com/GRRLIB/GRRLIB/suites/6533673204/artifacts/243639879

Look into the /gamecube folder. Try the .dol files (or .elf files if not working). Thanks 😀

[shazz]

Salut @Crayon2000 :)
Interesting... your funsin works! I'll check why as we apply the same modifications (rules and pad mgt)

Antoine's unlimited3 doesn't work, like for me, I guess it is a similar problem that in his unlimited2d screen. It was a little more complicated to patch, from my understanding, that was a memory issue due to the fact this cheater (kidding) was initializing 10 textures and it looks like on the GC it doesn't work with more than 3

    GRRLIB_texImg *tex_screen[10];
    for(i=0; i<10; i++) {
        tex_screen[i] = GRRLIB_CreateEmptyTexture(rmode->fbWidth, rmode->efbHeight);
    }

Anyway, thanks for having spent the time to patch/build them! I'll give a second look!

[shazz]

This is pretty weird.... by recompiling your version I have the same problem, black screen. Does the gamecube-examples branch contains GRRLIB modifications for the gamecube not in the master branch ?
Or specific version of libogc ?
Or devitpro_ppc ?
Or some black magic ? :D

[Crayon2000]

The GitHub Action (ci.yml) is using the devkitpro/devkitppc:latest Docker image. Currently it comes with devkitPPC r40 and libogc 2.3.1.
My gamecube-examples branch is based on the latest master branch commit.
After that, I simply do:

        (cd GRRLIB && make clean all install)
        (cd GRRLIB/GRRLIB && make PLATFORM=cube clean all install)
        (cd examples && make)

So... no magic 🪄

[shazz]

Yeah I saw that... and I'm using the same docker image... but maybe I updated libogc, I'll check.

Could you also build the various grrlib demos? Or they only work on a wii?

[Crayon2000]

I have added to the gamecube-examples branch all examples that don't requires IR sensor. Maybe at one point I will modify the code to make them work with the analog stick.

A new zip file is available at https://github.com/GRRLIB/GRRLIB/suites/6552258305/artifacts/244802325

If they mostly work, I will merge the branch back to the master branch so you can fix the GameCube examples with a PR (if you want 😁).

[shazz]

So, I tested them all this weekend, except unlimited2d, unlimited3d they all work!

[Crayon2000]

@shazz , I just fixed the makefile for unlimited3d. I also decrease the count of tex_screen_count in the unlimited2d. Can you try it again please: https://github.com/GRRLIB/GRRLIB/suites/6655671694/artifacts/251617137

[shazz]

I'll do that asap for sure!
Did you see my post on a bug I found and fixed?

[shazz]

Just tried, black screen for the 2d version and buggy for the 3d version :

[shazz]

my working 2d version uses:

const int tex_screen_count = 3;

instead of 4

[Crayon2000]

I have changed the unlimited 2D example with tex_screen_count set to 3. I have also changed the 2 unlimited examples Makefile.
The gamecube-examples branch was merged back to master branch in PR #28.
Latest examples download is available here: https://github.com/GRRLIB/GRRLIB/suites/6698186012/artifacts/254465835