Homebrew [Release] {beta} sf2dlib - Simple and Fast 2D library (using the GPU)

[Rinnegatamante]

What about pixel formatting for textures?
I tried to use same function i use in luaGraphics for opening PNGs ( https://github.com/Rinnegatamante/lpp-3ds/blob/master/source/luaGraphics.cpp ) and i got this result:

 

[xerpi]

What about pixel formatting for textures?
I tried to use same function i use in luaGraphics for opening PNGs ( https://github.com/Rinnegatamante/lpp-3ds/blob/master/source/luaGraphics.cpp ) and i got this result:

The GPU uses a Z-order "tiling" format for textures, you need to convert your textures first, for example with this function:

void texture_tile32(const u32 *src, u32 *dst, int width, int height);

 

[Rinnegatamante]

The GPU uses a Z-order "tiling" format for textures, you need to convert your textures first, for example with this function:

void texture_tile32(const u32 *src, u32 *dst, int width, int height);

Yes, i used them but still corrupt images:

static int lua_loadimg(lua_State *L)
{
    int argc = lua_gettop(L);
    if (argc != 1) return luaL_error(L, "wrong number of arguments");
    char* text = (char*)(luaL_checkstring(L, 1));
    Handle fileHandle;
    u32 bytesRead;
    u16 magic;
    u64 long_magic;
    FS_path filePath=FS_makePath(PATH_CHAR, text);
    FS_archive script=(FS_archive){ARCH_SDMC, (FS_path){PATH_EMPTY, 1, (u8*)""}};
    FSUSER_OpenFileDirectly(NULL, &fileHandle, script, filePath, FS_OPEN_READ, FS_ATTRIBUTE_NONE);
    FSFILE_Read(fileHandle, &bytesRead, 0, &magic, 2);
    Bitmap* bitmap;
    if (magic == 0x5089){
        FSFILE_Read(fileHandle, &bytesRead, 0, &long_magic, 8);
        FSFILE_Close(fileHandle);
        svcCloseHandle(fileHandle);
        if (long_magic == 0x0A1A0A0D474E5089) bitmap = decodePng(text); // same as openPng but without flip and B<->R channel change
    }else if (magic == 0x4D42){
        FSFILE_Close(fileHandle);
        svcCloseHandle(fileHandle);
        bitmap = LoadBitmap(text);
    }else if (magic == 0xD8FF){
        FSFILE_Close(fileHandle);
        svcCloseHandle(fileHandle);
        bitmap = OpenJPG(text);
    }
    if(!bitmap) return luaL_error(L, "Error loading image");
    sf2d_texture *tex = sf2d_create_texture(bitmap->width, bitmap->height, GPU_RGBA8, SF2D_PLACE_VRAM);
    texture_tile32((u32*)bitmap->pixels, (u32 *)tex->data, bitmap->width, bitmap->height);
    free(bitmap->pixels);
    free(bitmap);
    lua_pushinteger(L, (u32)(tex));
    return 1;
}
 
static int lua_drawimg(lua_State *L)
{
    int argc = lua_gettop(L);
    if (argc != 3) return luaL_error(L, "wrong number of arguments");
    int x = luaL_checkinteger(L,1);
    int y = luaL_checkinteger(L,2);
    sf2d_texture* texture = (sf2d_texture*)luaL_checkinteger(L,3);
    sf2d_draw_texture(texture, x, y);
    return 0;
}

 

[KingOfHell]

Glad to see someone got around to it. I was planning on doing a whole GUI system, but haven't gotten that far yet.

 

[filfat]

Glad to see someone got around to it. I was planning on doing a whole GUI system, but haven't gotten that far yet.

I'm working on a GUI system. If you are interested in joining just give me a heads up

 

[Helreizer543]

Don't know why but now i get several errors in Citra and nothing blended on screens.

this happens on citra everytime I emulate most homebrew.

 

[Reisyukaku]

The sample game compiles just fine but doesnt work on the 3DS. In a CIA cfw, it doesnt create and icon on HM and just crashes back to sysnand when running via devmenu, and in ninjhax its just a black screen that you need to reboot out of.

 

[Rinnegatamante]

The sample game compiles just fine but doesnt work on the 3DS. In a CIA cfw, it doesnt create and icon on HM and just crashes back to sysnand when running via devmenu, and in ninjhax its just a black screen that you need to reboot out of.

What sample game are you talking about?
Anyway GPU rendering is not available on all firmwares.

 

[Reisyukaku]

What sample game are you talking about?
Anyway GPU rendering is not available on all firmwares.

The only one thats on git, lol.. drawing shit to the screen. That's pretty lame if it's gonna be FW picky

 

[erk_is_my_homeboy]

I am having similar issues to Reisyukaku, when I compile the sample and run on hardware I only get a black screen with some random pixels turned on, or it just crashes back to home menu. I am running on a black N3DS 9.0.0-20U using ninjhax on a retail copy of Cubic Ninja. Could someone please provide a verified working .3dsx and .smdh of the sample so I can confirm it isn't just my compile set up?

Regardless, good luck on the project and I look forward to using this and seeing how others do so.

 

[Cid2mizard]

It should be noted that it is necessary to have https://github.com/smealum/aemstro To test , I copied the / sf2dlib and / sample in my repertoire devkitpro I then made a Build sf2dlib which went well . As against the sample does not compile error in the directory paths. We could not have a simple explanation for installation ?​

 

[erk_is_my_homeboy]

You have to install the sf2dlib as well as build it. If you are using make, just type 'make install' after you use 'make' to compile sf2dlib. If you are not using make, you'll need to manually move some files around. Put sf2dlib/libsf2d/lib/sflibsf2d.a into your devkitPro/libctru/lib folder. Then put sf2dlib/libsf2d/include/sf2d.h into devkitPro/libctru/include. I hope this makes sense, I find compiling is much easier using linux and make.

I still have not been able to do anything with this library, the sample still gives me a black screen and/or crashes. Attached is a zip of my compiled .3dsx and .smdh of the sample, anyone who wants to can test it out!

 

[Rinnegatamante]

You have to install the sf2dlib as well as build it. If you are using make, just type 'make install' after you use 'make' to compile sf2dlib. If you are not using make, you'll need to manually move some files around. Put sf2dlib/libsf2d/lib/sflibsf2d.a into your devkitPro/libctru/lib folder. Then put sf2dlib/libsf2d/include/sf2d.h into devkitPro/libctru/include. I hope this makes sense, I find compiling is much easier using linux and make.

I still have not been able to do anything with this library, the sample still gives me a black screen and/or crashes. Attached is a zip of my compiled .3dsx and .smdh of the sample, anyone who wants to can test it out!

You need to update libctru to solve black screen issue.

 

[erk_is_my_homeboy]

You need to update libctru to solve black screen issue.

Just updated, and still getting black screen error. Attached is the new 3dsx/smdh, if anyone wants to test. Rinnegatamante, if you could maybe post a 3dsx/smdh for me to test? Thank you for your help regardless.

 

[Cid2mizard]

Install & sample perfect, thank you...

Edit : i will convert my projects with sf2dlib, i begin with 100 Boxes 2DS for test...but i have a gfx bug on top of bottom screen... a diagonal line on 6 tiles...

int main()
{
    sf2d_init();
 
    srand(osGetTime());
 
    Tile[0].texture = sf2d_create_texture(grey_img.width, grey_img.height, GPU_RGBA8, SF2D_PLACE_VRAM);
    sf2d_fill_texture_from_RGBA8(Tile[0].texture, grey_img.pixel_data, grey_img.width, grey_img.height);
    sf2d_texture_tile32(Tile[0].texture);
 
    Tile[1].texture = sf2d_create_texture(green_img.width, green_img.height, GPU_RGBA8, SF2D_PLACE_VRAM);
    sf2d_fill_texture_from_RGBA8(Tile[1].texture, green_img.pixel_data, green_img.width, green_img.height);
    sf2d_texture_tile32(Tile[1].texture);
 
    Tile[2].texture = sf2d_create_texture(yellow_img.width, yellow_img.height, GPU_RGBA8, SF2D_PLACE_VRAM);
    sf2d_fill_texture_from_RGBA8(Tile[2].texture, yellow_img.pixel_data, yellow_img.width, yellow_img.height);
    sf2d_texture_tile32(Tile[2].texture);
 
    sf2d_texture *tex_cursor = sf2d_create_texture(cursor_img.width, cursor_img.height, GPU_RGBA8, SF2D_PLACE_VRAM);
    sf2d_fill_texture_from_RGBA8(tex_cursor, cursor_img.pixel_data, cursor_img.width, cursor_img.height);
    sf2d_texture_tile32(tex_cursor);
 
 
    while (aptMainLoop()) {
 
        hidScanInput();
        kDown = hidKeysDown();
        hidTouchRead(&Stylus);
 
        if (kDown & KEY_START) break;
 
        manageInput();
 
        //sf2d_start_frame(GFX_TOP, GFX_LEFT);
        //sf2d_end_frame();
 
        sf2d_start_frame(GFX_BOTTOM, GFX_LEFT);
 
        for(lignes = 0; lignes < MAX_TILEX; lignes++)
        {
            for(colonnes = 0; colonnes < MAX_TILEY; colonnes++)
            {
            //Les tiles à afficher
                sf2d_draw_texture(Tile[level_courant[lignes*MAX_TILEY + colonnes]].texture, lignes*TILE_SIZEX, colonnes*TILE_SIZEY);
            }
        }
 
        sf2d_draw_texture(tex_cursor, TILE_X*TILE_SIZEX-4, TILE_Y*TILE_SIZEY-4);
 
        sf2d_end_frame();
 
        sf2d_swapbuffers();
    }
 
    sf2d_free_texture(tex_cursor);
    sf2d_free_texture(Tile[0].texture);
    sf2d_free_texture(Tile[1].texture);
    sf2d_free_texture(Tile[2].texture);
 
    sf2d_fini();
    return 0;
}

Edit 2 :

If i move the grid an color background, i have no graphic bug

Edit 3 :

Sample works with Citra but not with 3DS NINJHAX !!!

 

[Reisyukaku]

Sample works with Citra but not with 3DS !!!

Yep, I've tried with old 3ds 9.2 and 4.5 w/ 9.5emu as well as ninjhax and personal cfw and also tried on N3DS 9.2 emu and ninjhax.. none work, lol.

 

[Rinnegatamante]

Seems sample is out of date. My sf3dlib implementation works fine on both emulator and real hw: http://rinnegatamante.netsons.org/aster_gpu.rar (ogg and png files must be in SD root).

 

[erk_is_my_homeboy]

Thank you Rinnegatamante!! You are right, the sample on github does not work properly. Your program works fine (nice asteroids game, and nice CPU/GPU switching), and I took the sample code from xerpi's first post, and it works just fine on my 3DS. I am going to start to play with this library now, it looks very promising. Sad thing that the project I am working on right now uses console based graphics, so it can't make use of this! But I may end up using it anyway.

 

[Cid2mizard]

(I haven't been able to test this lib on a real 3DS, because there's some problem with the ctrulib code on at least the 4.X FW)

I'm use Ninjhax 1.1b with 3DS 4.5.0-8E, maybe we have same problem... Just 4.X FW

Edit : This code works on real 3DS, i think the problem came from image texture function and not draw rectangle/triangle functions.

int main()
{
    sf2d_init();
    sf2d_set_clear_color(RGBA8(0x0, 0x00, 0x00, 0x00));
 
    while (aptMainLoop()) {
 
        hidScanInput();
        if (hidKeysDown() & KEY_START) break;
 
        sf2d_start_frame(GFX_TOP, GFX_LEFT);
            //Draws a 100x100 yellow rectangle (255, 255, 00, 255) at (150, 70)
            sf2d_draw_rectangle(150, 70, 100, 100, RGBA8(0xFF, 0xFF, 0x00, 0xFF));
        sf2d_end_frame();
 
        sf2d_start_frame(GFX_BOTTOM, GFX_LEFT);
            //Draws a 70x100 blue rectangle (0, 0, 00, 255) at (120, 30)
            sf2d_draw_rectangle(120, 30, 70, 100, RGBA8(0x00, 0x00, 0xFF, 0xFF));
        sf2d_end_frame();
 
        sf2d_swapbuffers();
    }
 
    sf2d_fini();
    return 0;
}

I think bug came from SF2D_PLACE_VRAM

i replace SF2D_PLACE_VRAM to SF2D_PLACE_RAM and put (u32*) for pixel_data, it works on real hardware...

sf2d_texture *tex1 = sf2d_create_texture(citra_img.width, citra_img.height, GPU_RGBA8, SF2D_PLACE_RAM);
    sf2d_fill_texture_from_RGBA8(tex1, (u32*) citra_img.pixel_data, citra_img.width, citra_img.height);

Finally you are using the GPU ?

 

[xerpi]

Hi, I just wanted to say that the ctrulib bug has been solved (thanks to Steveice10), and I've already added more functions to the library