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Small C game development framework

License: BSD 2-Clause "Simplified" License

CMake 2.46% C 79.77% C++ 3.31% Objective-C 0.05% Python 1.80% GLSL 0.16% Assembly 12.40% Shell 0.03% Batchfile 0.03%

game-engine gamedev multi-platform c game-development game-framework direct3d11 metal opengl

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can i use cpp file

Hello,

when I rename hello.c to hello.cpp, the following line:

g_stage = the_gfx->stage_register("main", (rizz_gfx_stage){ .id = 0 });

with the following errors:

error C2059: syntax error: '.'
error C2059: syntax error: ')'

as I need to include <string>, otherwise, if I do not rename c to cpp, std will not be compiled!

thanks

Hot reloading of shader doesn't seem to work on macOS

I've tried to recompile a shader on macOS while rizz is running a game plugin, and this causes an assert to fail in dmon.h. Here are the steps to reproduce

Clone repo
Build using Cmake
Run ./rizz --run lib08-draw3d.dylib from the bin directory
Change the assignment statement in the fragment shader draw3d.frag for frag_color to something like - frag_color = vec4(1.0, 0.0, 0.0, 1.0);
Re-compile the sgs file using the following command - ./tools/darwin/glslcc --vert=examples/08-draw3d/draw3d.vert --frag=examples/08-draw3d/draw3d.frag --lang=msl --reflect --sgs --output=examples/assets/shader s/msl/draw3d.sgs

This will cause the following assertion to fail -

Assertion failed: (strstr(abs_filepath, watch->rootdir) == abs_filepath), function dmon__fsevent_callback, file /Users/zacharycarter/dev/rizz/include/dmon/dmon.h, line 1347.

AUR package

An AUR package would be helpful for installing through the package manager.
Here are some guides:
https://wiki.archlinux.org/title/Creating_packages
https://gist.github.com/keilmillerjr/dbfd9d60b2cd5fb440274c0a67a7db18
And here is my PKGBUILD for my package:
https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=clibasic

Support Wren Language

Hello, this seems like a nice project.
I am interested in using Wren as a scripting language.

This language is successfully used in other projects such as

https://tic.computer/
https://domeengine.com/
and https://luxeengine.com/

I'm willing to do a PR with a plugin, but I would need some guidance on where to look for integration :)

Thanks 👍

rizz__vfs_release lead to crash when conf->job_num_threads is 16

static int rizz__core_thread_func(void* user1, void* user2)
{
typedef int (thread_fn)(void user_data);
thread_fn func = (thread_fn)user2;
sx_assert(func);

int r = func(user1);

// find the any existing thread temp allocator and destroy it
uint32_t tid = sx_thread_tid();
sx_mutex_lock(g_core.tmp_allocs_mtx) {
    for (int i = 0, c = sx_array_count(g_core.tmp_allocs); i < c; i++) {
        if (g_core.tmp_allocs[i]->tid == tid) {
            rizz__release_tmp_alloc_tls(g_core.tmp_allocs[i]);
            sx_swap(g_core.tmp_allocs[i], g_core.tmp_allocs[c-1], rizz__tmp_alloc_tls*);
            sx_array_pop_last(g_core.tmp_allocs);
            break;
        }
    }
}

return r;

}

"if (g_core.tmp_allocs[i]->tid == tid)", this line will crash.

MinGW support

Thanks for the project, I'm currently building it with MSVC, but it would be great if you can add support for MinGW. In general, the building process runs fine excepting several errors like:

Rizz\src\sx\src\threads.c:493:45: error: operand of ?: changes signedness from 'int' to 'unsigned int' due to unsignedness of other operand [-Werror=sign-compare]
     DWORD _msecs = (msecs < 0) ? INFINITE : msecs;
                                             ^~~~~
Rizz\src\sx\src\threads.c: In function 'sx_signal_wait':
Rizz\src\sx\src\threads.c:539:45: error: operand of ?: changes signedness from 'int' to 'unsigned int' due to unsignedness of other operand [-Werror=sign-compare]
     DWORD _msecs = (msecs < 0) ? INFINITE : msecs;
                                             ^~~~~
Rizz\src\sx\src\threads.c: In function 'sx_thread_setname':
Rizz\src\sx\src\threads.c:631:5: error: '__try' undeclared (first use in this function)
     __try {
     ^~~~~
Rizz\src\sx\src\threads.c:631:5: note: each undeclared identifier is reported only once for each function it appears in
Rizz\src\sx\src\threads.c:631:10: error: expected ';' before '{' token
     __try {
          ^~
          ;
cc1.exe: all warnings being treated as errors
make[2]: *** [src\sx\CMakeFiles\sx.dir\build.make:91: src/sx/CMakeFiles/sx.dir/src/threads.c.obj] Error 1
make[1]: *** [CMakeFiles\Makefile2:596: src/sx/CMakeFiles/sx.dir/all] Error 2
make: *** [Makefile:83: all] Error 2

Errors with running examples on a fresh clone/build

DrawSprite
seems like there are some problems with loading the resources:

$ ./rizz --run ./lib03-drawsprite.so 
version: 0.4-17-gf9b8182
(init) vfs
(init) temp memory: 8x5120 kb
(init) jobs: threads=7, max_fibers=64, stack_size=1024kb
(init) asset system: hot-loading=1
(init) profiler (cpu): port=17815
(init) graphics: OpenGL 3.3
(init) coroutines: max_fibers=64, stack_size=2048kb
(init) http client
vfs: mounted '/cache' on '/d/code/game/rizz/rizz/bin/.cache'
(init) plugin: imgui (libimgui.so) - dear-imgui plugin - v1.77.0
(init) plugin: 2dtools (lib2dtools.so) - 2dtools plugin - v1.0.0
vfs: mounted '/assets' on '/d/code/game/rizz/rizz/examples/assets'
(init) plugin: drawsprite (lib03-drawsprite.so) -  - v0.0.0
ERROR: sg_image_desc.width must be > 0
ERROR: sg_image_desc.height must be > 0
ERROR: ^^^^  VALIDATION FAILED, TERMINATING ^^^^
rizz: /d/code/game/rizz/rizz/src/rizz/../../3rdparty/sokol/sokol_gfx.h:12819: _sg_validate_end: Assertion `0' failed.

NBody
Seems like is not built by default ?

Draw3d

$ ./rizz --run ./lib08-draw3d.so 
version: 0.4-17-gf9b8182
(init) vfs
(init) temp memory: 8x5120 kb
(init) jobs: threads=7, max_fibers=64, stack_size=1024kb
(init) asset system: hot-loading=1
(init) profiler (cpu): port=17815
(init) graphics: OpenGL 3.3
(init) coroutines: max_fibers=64, stack_size=2048kb
(init) http client
vfs: mounted '/cache' on '/d/code/game/rizz/rizz/bin/.cache'
(init) plugin: imgui (libimgui.so) - dear-imgui plugin - v1.77.0
ERROR: error: vertex shader output `f_color' specifies flat interpolation qualifier, but fragment shader input specifies no interpolation qualifier

ERROR: sg_pipeline_desc.shader missing or invalid
ERROR: ^^^^  VALIDATION FAILED, TERMINATING ^^^^
rizz: /d/code/game/rizz/rizz/src/rizz/../../3rdparty/sokol/sokol_gfx.h:12819: _sg_validate_end: Assertion `0' failed.
ERROR: plugin init failed: ./lib3dtools.so
ERROR: initializing plugins failed

Btw, I couldn't see the imgui windows in any of the examples (unlike the screenshots)

Example 08-draw3d locks up during startup

Running the 08-draw3d example on Windows with VS2019 results in an unresponsive white screen. It appears that the asset system tries to start a job to read and load the a 3d asset, but it gets stuck in a spin waiting for a lock to be released.

rizz.exe!sx_anderson_lock_enter(sx_anderson_lock_t * lock) Line 793
	at C:\Work\rizz\src\sx\src\threads.c(793)
rizz.exe!sx_job_dispatch(sx_job_context * ctx, int count, void(*)(int, int, int, void *) callback, void * user, sx_job_priority priority, unsigned int tags) Line 320
	at C:\Work\rizz\src\sx\src\jobs.c(320)
rizz.exe!rizz__job_dispatch(int count, void(*)(int, int, int, void *) callback, void * user, sx_job_priority priority, unsigned int tags) Line 1757
	at C:\Work\rizz\src\rizz\core.c(1757)
rizz.exe!rizz__asset_on_read(const char * path, sx_mem_block * mem, void * user) Line 328
	at C:\Work\rizz\src\rizz\asset.c(328)
rizz.exe!rizz__vfs_async_update() Line 397
	at C:\Work\rizz\src\rizz\vfs.c(397)
rizz.exe!rizz__core_frame() Line 1582
	at C:\Work\rizz\src\rizz\core.c(1582)
rizz.exe!rizz__app_frame() Line 476
	at C:\Work\rizz\src\rizz\app.c(476)
rizz.exe!_sapp_call_frame() Line 1146
	at C:\Work\rizz\3rdparty\sokol\sokol_app.h(1146)
rizz.exe!_sapp_frame() Line 1266
	at C:\Work\rizz\3rdparty\sokol\sokol_app.h(1266)
rizz.exe!_sapp_run(const sapp_desc * desc) Line 5007
	at C:\Work\rizz\3rdparty\sokol\sokol_app.h(5007)
rizz.exe!WinMain(HINSTANCE__ * hInstance, HINSTANCE__ * hPrevInstance, char * lpCmdLine, int nCmdShow) Line 5086
	at C:\Work\rizz\3rdparty\sokol\sokol_app.h(5086)

If you modify the k_models array in draw3d.c to only contain 1 asset, then the main thread is unblocked, but the asset still doesn't load since the thread trying to load the asset is also stuck in a spin.

Commenting out the spin completely to ignore the lock makes everything work and load correctly, but ofc that's bad and not a real workaround.

System Info:

Windows 10 Pro
Version 10.0.19042 Build 19042
Visual Studio 2019 16.11.3
Platform toolset v142

WebAssembly and usability

Thank you for this great framework. I have two questions:

If you want to try to compile rizz to webassembly/asm.js, do you see problems arising from that? like will co-routines, the virtual file system, and the async loading work?
Is the 2dtools usable, or it has major missing features?

Thanks

Discord Channel?

What about create a discord channel to development discussions?

lt comparison should be gt

rizz/src/rizz/app.c

Line 653 in cfe3da2

if (arg_len > (int)sizeof(item.value) - 1) {

I believe the check here is backwards - it is currently checking if the length of the argument passed to the option is greater than the size of value array of the union (8 bytes). If it is, it currently copies 8 bytes from the argument into the buffer. I believe it should really allocate in this case - unless I'm misunderstanding the intent of this section of code.

No imgui menu on Linux

I cannot seem to get the IMGUI to show up in the examples - although the rendering seems to mostly work here.

I've tested it both on Intel and AMD gpu hardware with mesa-21.0.3.

compute shader

Hi, I really love the way of rizz and its provided functionalities, like gfx, jobs, reflection, etc.
however, the compute shader seems not supported yet?

is it possible to support the compute shader so that it would be much convenient to do some advanced rendering tests.

so brilliant!

septag / rizz Goto Github PK

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