setup opengl

build.zig

@@ -1,6 +1,7 @@
 const std = @import("std");
 const Builder = std.build.Builder;
 const LibExeObjStep = std.build.LibExeObjStep;
+const glfw = @import("vendor/mach/glfw/build.zig");
 
 pub fn build(b: *std.build.Builder) void {
     const target = b.standardTargetOptions(.{});
@@ -10,8 +11,10 @@ pub fn build(b: *std.build.Builder) void {
     exe.setTarget(target);
     exe.setBuildMode(mode);
     exe.install();
-    exe.linkLibrary(addRaylib(exe.builder, exe.target));
-    exe.addIncludeDir("vendor/raylib/src"); // for raylib.h
+    exe.addPackagePath("glfw", "vendor/mach/glfw/src/main.zig");
+    glfw.link(b, exe, .{});
+
+    exe.linkSystemLibrary("epoxy");
 
     const run_cmd = exe.run();
     run_cmd.step.dependOn(b.getInstallStep());
@@ -22,83 +25,3 @@ pub fn build(b: *std.build.Builder) void {
     const run_step = b.step("run", "Run the app");
     run_step.dependOn(&run_cmd.step);
 }
-
-pub fn addRaylib(b: *std.build.Builder, target: std.zig.CrossTarget) *std.build.LibExeObjStep {
-    // Standard release options allow the person running `zig build` to select
-    // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
-    const mode = b.standardReleaseOptions();
-
-    const raylib_flags = &[_][]const u8{
-        "-std=gnu99",
-        "-DPLATFORM_DESKTOP",
-        "-DGL_SILENCE_DEPRECATION=199309L",
-        "-fno-sanitize=undefined", // https://github.com/raysan5/raylib/issues/1891
-        "-DSUPPORT_EVENTS_WAITING", // for waiting, not polling on events
-    };
-
-    const srcdir = "vendor/raylib/src";
-
-    const raylib = b.addStaticLibrary("raylib", srcdir ++ "/raylib.h");
-    raylib.setTarget(target);
-    raylib.setBuildMode(mode);
-    raylib.linkLibC();
-
-    raylib.addIncludeDir(srcdir ++ "/external/glfw/include");
-
-    raylib.addCSourceFiles(&.{
-        srcdir ++ "/raudio.c",
-        srcdir ++ "/rcore.c",
-        srcdir ++ "/rmodels.c",
-        srcdir ++ "/rshapes.c",
-        srcdir ++ "/rtext.c",
-        srcdir ++ "/rtextures.c",
-        srcdir ++ "/utils.c",
-    }, raylib_flags);
-
-    switch (raylib.target.toTarget().os.tag) {
-        .windows => {
-            raylib.addCSourceFiles(&.{srcdir ++ "/rglfw.c"}, raylib_flags);
-            raylib.linkSystemLibrary("winmm");
-            raylib.linkSystemLibrary("gdi32");
-            raylib.linkSystemLibrary("opengl32");
-            raylib.addIncludeDir("external/glfw/deps/mingw");
-        },
-        .linux => {
-            raylib.addCSourceFiles(&.{srcdir ++ "/rglfw.c"}, raylib_flags);
-            raylib.linkSystemLibrary("GL");
-            raylib.linkSystemLibrary("rt");
-            raylib.linkSystemLibrary("dl");
-            raylib.linkSystemLibrary("m");
-            raylib.linkSystemLibrary("X11");
-        },
-        .freebsd, .openbsd, .netbsd, .dragonfly => {
-            raylib.addCSourceFiles(&.{srcdir ++ "/rglfw.c"}, raylib_flags);
-            raylib.linkSystemLibrary("GL");
-            raylib.linkSystemLibrary("rt");
-            raylib.linkSystemLibrary("dl");
-            raylib.linkSystemLibrary("m");
-            raylib.linkSystemLibrary("X11");
-            raylib.linkSystemLibrary("Xrandr");
-            raylib.linkSystemLibrary("Xinerama");
-            raylib.linkSystemLibrary("Xi");
-            raylib.linkSystemLibrary("Xxf86vm");
-            raylib.linkSystemLibrary("Xcursor");
-        },
-        .macos => {
-            // On macos rglfw.c include Objective-C files.
-            const raylib_flags_extra_macos = &[_][]const u8{
-                "-ObjC",
-            };
-            raylib.addCSourceFiles(
-                &.{srcdir ++ "/rglfw.c"},
-                raylib_flags ++ raylib_flags_extra_macos,
-            );
-            raylib.linkFramework("Foundation");
-        },
-        else => {
-            @panic("Unsupported OS");
-        },
-    }
-
-    return raylib;
-}

nix/devshell.nix

@@ -7,6 +7,7 @@
 , vttest
 , zig
 
+, libepoxy
 , libGL
 , libX11
 , libXcursor
@@ -29,7 +30,9 @@
   buildInputs = [
     # TODO: non-linux
   ] ++ lib.optionals stdenv.isLinux [
+    libepoxy
     libGL
+
     libX11
     libXcursor
     libXext

src/main.zig

@@ -1,21 +1,30 @@
 const std = @import("std");
-const c = @import("c.zig");
+const glfw = @import("glfw");
+const c = @cImport({
+    @cInclude("epoxy/gl.h");
+});
 
 pub fn main() !void {
-    // Set the window as resizable. This is particularly important for
-    // tiling window managers such as i3 since if they are not resizable they
-    // usually default to floating and we do not want to float by default!
-    c.SetConfigFlags(c.FLAG_WINDOW_RESIZABLE | c.FLAG_VSYNC_HINT);
+    try glfw.init(.{});
+    defer glfw.terminate();
 
     // Create our window
-    c.InitWindow(640, 480, "ghostty");
-    c.SetTargetFPS(60);
-    defer c.CloseWindow();
+    const window = try glfw.Window.create(640, 480, "ghostty", null, null, .{});
+    defer window.destroy();
 
-    // Draw
-    while (!c.WindowShouldClose()) {
-        c.BeginDrawing();
-        c.ClearBackground(c.BLACK);
-        c.EndDrawing();
+    // Setup OpenGL
+    try glfw.makeContextCurrent(window);
+    try glfw.swapInterval(1);
+
+    // Setup basic OpenGL settings
+    c.glClearColor(0.0, 0.0, 0.0, 0.0);
+
+    // Wait for the user to close the window.
+    while (!window.shouldClose()) {
+        const pos = try window.getCursorPos();
+        std.log.info("CURSOR: {}", .{pos});
+
+        try window.swapBuffers();
+        try glfw.waitEvents();
     }
 }