zig-webgpu-gen

commit 83a4801c7d2ec8e05d76e129ea6bb99b493c1885
parent d7e3dfb74fdb7c4f197cdb80dd2d56ebc79f13a5
Author: Christian Ermann <christianermann@gmail.com>
Date:   Sun, 17 May 2026 14:28:22 -0700

Link against wgpu-native

Diffstat:
M
build.zig
 | 
48
+++++++++++++++++++++++++++++++++++++++++-------
M
build.zig.zon
 | 
22
+++++++++++++++++++++-

2 files changed, 62 insertions(+), 8 deletions(-)
diff --git a/build.zig b/build.zig
@@ -1,14 +1,39 @@
 const std = @import("std");
 
-pub fn build(b: *std.Build) void {
+pub fn build(b: *std.Build) !void {
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
 
-    const webgpu_headers = b.dependency("webgpu_headers", .{
-        .target = target,
-        .optimize = optimize,
-    });
-    const webgpu_json = webgpu_headers.path("webgpu.json");
+    const webgpu_headers = b.lazyDependency("webgpu_headers", .{});
+    const wgpu_native = try switch (target.result.os.tag) {
+        .linux => switch (target.result.cpu.arch) {
+            .x86_64 => switch (optimize) {
+                .Debug => b.lazyDependency(
+                    "wgpu_native_linux_x86_64_debug",
+                    .{},
+                ),
+                .ReleaseFast, .ReleaseSafe, .ReleaseSmall => b.lazyDependency(
+                    "wgpu_native_linux_x86_64_release",
+                    .{},
+                ),
+            },
+            else => error.NotSupported,
+        },
+        .macos => switch (target.result.cpu.arch) {
+            .x86_64 => switch (optimize) {
+                .Debug => b.lazyDependency(
+                    "wgpu_native_macos_x86_64_debug",
+                    .{},
+                ),
+                .ReleaseFast, .ReleaseSafe, .ReleaseSmall => b.lazyDependency(
+                    "wgpu_native_macos_x86_64_release",
+                    .{},
+                ),
+            },
+            else => error.NotSupported,
+        },
+        else => error.NotSupported,
+    };
 
     const exe_mod = b.createModule(.{
         .root_source_file = b.path("src/main.zig"),
@@ -20,7 +45,10 @@ pub fn build(b: *std.Build) void {
         .root_module = exe_mod,
     });
     const run_cmd = b.addRunArtifact(exe);
-    run_cmd.addFileArg(webgpu_json);
+    if (webgpu_headers) |dep| {
+        const webgpu_json = dep.path("webgpu.json");
+        run_cmd.addFileArg(webgpu_json);
+    }
     const gen_file = run_cmd.addOutputFileArg("webgpu.zig");
 
     const install_raw = b.addInstallFile(gen_file, "webgpu-raw.zig");
@@ -38,6 +66,7 @@ pub fn build(b: *std.Build) void {
         .root_source_file = gen_file,
         .target = target,
         .optimize = optimize,
+        .link_libc = true,
     });
     const lib = b.addLibrary(.{
         .linkage = .static,
@@ -46,5 +75,10 @@ pub fn build(b: *std.Build) void {
     });
     lib.step.dependOn(&fmt_cmd.step);
 
+    if (wgpu_native) |dep| {
+        const wgpu_lib = dep.path("lib/libwgpu_native.a");
+        lib_mod.addObjectFile(wgpu_lib);
+    }
+
     b.installArtifact(lib);
 }
diff --git a/build.zig.zon b/build.zig.zon
@@ -68,7 +68,27 @@
         .webgpu_headers = .{
             .url = "https://github.com/webgpu-native/webgpu-headers/archive/7d3186c3dd2c708703524027b46b8703534ab3cc.tar.gz",
             .hash = "N-V-__8AAKfVCwACaVDbxAcElqWNITTDQQSvqtRBmFQOAqNe",
-            .lazy = false
+            .lazy = true,
+        },
+        .wgpu_native_macos_x86_64_debug = .{
+            .url = "https://github.com/gfx-rs/wgpu-native/releases/download/v29.0.0.0/wgpu-macos-x86_64-debug.zip",
+            .hash = "N-V-__8AAD3zzgk2_Za_1BnKJTDKjIWKAybnN_AREgeWnU7c",
+            .lazy = true,
+        },
+        .wgpu_native_macos_x86_64_release = .{
+            .url = "https://github.com/gfx-rs/wgpu-native/releases/download/v29.0.0.0/wgpu-macos-x86_64-release.zip",
+            .hash = "N-V-__8AAF0KeQIPjq2ZGVZ2r_mwwK6lDxHhxsko_HfbMLqO",
+            .lazy = true,
+        },
+        .wgpu_native_linux_x86_64_debug = .{
+            .url = "https://github.com/gfx-rs/wgpu-native/releases/download/v29.0.0.0/wgpu-linux-x86_64-debug.zip",
+            .hash = "N-V-__8AAI0zpRP5NvcMEE7UL_eWX3DbOhCbLnzOMGg44neR",
+            .lazy = true,
+        },
+        .wgpu_native_linux_x86_64_release = .{
+            .url = "https://github.com/gfx-rs/wgpu-native/releases/download/v29.0.0.0/wgpu-linux-x86_64-release.zip",
+            .hash = "N-V-__8AAO3k0AME91yU7p-wkAjsf9Fudl9z8rFKgyS-aTY9",
+            .lazy = true,
         },
     },