Add Beef lang bindings generator

[kochol]

No description provided.

[floooh]

Thanks for the PR :) I'll try to give it a whirl soon-ish (I haven't tinkered with beef yet so I first will need to read up on this a bit).

One thing: The submodule should be removed, and instead for now the scripts should expect that the bindings git repo has been checked out manually at the right place. I don't know yet if the current directory structure is final, but in any case the sokol git repository shouldn't contain submodules.

[kochol]

https://www.beeflang.org/ is a new programming language similar to C# but without GC and based on LLVM with many awesome features.

I also removed submodule as you requested.

[floooh]

I'm currently looking into Beef a bit, just tinkering with the Beef IDE and example project. Really impressive stuff :)

Is the PR ready for merging or still WIP? As soon as you give the go ahead I can look into it. It would probably also be good to port a few examples from the sokol-samples repository.

[kochol]

The below video has some info about language.
https://www.youtube.com/watch?v=L6w4y6_ENdU

For using sokol in Beef you have to create ether a static library or dynamic library to use them.
I try to port some samples so for now I make this PR WIP.

[floooh]

Thanks for the link! If possible we should aim for a "batteries included" bindings repository which contains a snapshot of the sokol headers which match the generated bindings, and a simple way to compile those into a library (I would prefer static, but I don't know what's the preference is in the Beef world).

As example, check out how it looks in the Zig and Nim bindings (note the "c" subdirectory):

https://github.com/floooh/sokol-zig/tree/master/src/sokol

https://github.com/floooh/sokol-nim/tree/master/src/sokol

Both Zig and Nim can directly compile C source files though, don't know how this is handled with Beef in a cross-platform way (I guess if the Beef "build system" doesn't support compiling C libraries, then we should add a simple cmake file to the bindings repository which compiles the sokol headers into a library and could look like this snippet:

if(CMAKE_SYSTEM_NAME STREQUAL Darwin)
    add_library(sokol STATIC sokol/sokol.m ${SOKOL_HEADERS})
    target_link_libraries(sokol PUBLIC
        "-framework QuartzCore"
        "-framework Cocoa"
        "-framework MetalKit"
        "-framework Metal")
else()
    add_library(sokol STATIC sokol/sokol.c ${SOKOL_HEADERS})
    if (CMAKE_SYSTEM_NAME STREQUAL Linux)
        target_link_libraries(sokol INTERFACE X11 Xi Xcursor GL dl m)
        target_link_libraries(sokol PUBLIC Threads::Threads)
    endif()
endif()

(taken from: https://github.com/floooh/cimgui-sokol-starterkit/blob/main/CMakeLists.txt)

[floooh]

PS: for porting the samples, it's a good idea to copy-paste the GLSL, HLSL and Metal shader code from the following platform-specific samples, instead of trying to extract the code-generated shader code from the sapp samples (it might make sense to add Beef-output to sokol-shdc later):

• for HLSL: https://github.com/floooh/sokol-samples/tree/master/d3d11
• for GLSL: https://github.com/floooh/sokol-samples/tree/master/glfw
• for MetalSL: https://github.com/floooh/sokol-samples/tree/master/metal

[kochol]

Hi @floooh
I am learning project management from you. thank you

Beef can not compile c files at this time. I don't know if it will support later or not but can work with both static and dynamic libraries so I add a cmake script to compile sokol into the .lib file.

I also write a sokol-clear example in Beef and every thing works just fine.

below is my example code in Beef

using System;
using sokol;

namespace test_sokol
{
	class Program
	{
		static Gfx.Desc _desc = .();
		static Gfx.PassAction _pass = .();

		static void OnInit()
		{
			_desc.context = Glue.context();
			Gfx.setup(&_desc);
			_pass.colors[0] = .{ action = .CLEAR, value = .{ r=1, g=1, b=0, a=1 } };
		}

		static void OnFrame()
		{
			let g = _pass.colors[0].value.g + 0.01f;
			_pass.colors[0].value.g = g > 1.0f ? 0.0f : g;
			Gfx.beginDefaultPass(&_pass, App.width(), App.height());
			Gfx.endPass();
			Gfx.commit();
		}

		static void OnEvent(App.Event* _event)
		{

		}

		static void OnCleanUp()
		{
			Gfx.shutdown();
		}

		static void OnFail(char8* msg)
		{
			Console.WriteLine(msg);
		}

		public static int Main(String[] args)
		{
			App.Desc desc = .();
			desc.init_cb = => OnInit;
			desc.frame_cb = => OnFrame;
			desc.event_cb = => OnEvent;
			desc.cleanup_cb = => OnCleanUp;
			desc.fail_cb = => OnFail;
			desc.window_title = "Beef-Clear";
			App.run(&desc);

			return 0;
		}
	}
}

[kochol]

I updated my beef generator to the latest sokol version and add triangle sample to see the shaders are working or not. Also fixed a bug in my generator.

please check this sample code
https://github.com/kochol/sokol-beef/blob/main/samples/sokol-triangle/src/Program.bf

[floooh]

Ah, thanks for brining the Beef generator to my attention again :) Now that the bindings updates are automated I think it's time again to look into the PR :)