273 lines
11 KiB
Zig
273 lines
11 KiB
Zig
const std = @import("std");
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const builtin = @import("builtin");
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const glfw = @import("libs/mach-glfw/build.zig");
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const gpu_dawn = @import("libs/mach-gpu-dawn/build.zig");
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const gpu = @import("libs/mach-gpu/build.zig").Sdk(.{
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.gpu_dawn = gpu_dawn,
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});
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const core = @import("build.zig").Sdk(.{
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.gpu = gpu,
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.gpu_dawn = gpu_dawn,
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.glfw = glfw,
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});
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pub fn build(b: *std.Build) !void {
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const optimize = b.standardOptimizeOption(.{});
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const target = b.standardTargetOptions(.{});
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const gpu_dawn_options = gpu_dawn.Options{
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.from_source = b.option(bool, "dawn-from-source", "Build Dawn from source") orelse false,
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.debug = b.option(bool, "dawn-debug", "Use a debug build of Dawn") orelse false,
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};
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const options = core.Options{ .gpu_dawn_options = gpu_dawn_options };
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if (target.getCpuArch() != .wasm32) {
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const all_tests_step = b.step("test", "Run library tests");
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const glfw_test_step = b.step("test-glfw", "Run GLFW library tests");
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const gpu_test_step = b.step("test-gpu", "Run GPU library tests");
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const core_test_step = b.step("test-core", "Run Mach Core library tests");
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glfw_test_step.dependOn(&(try glfw.testStep(b, optimize, target)).step);
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gpu_test_step.dependOn(&(try gpu.testStep(b, optimize, target, options.gpuOptions())).step);
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core_test_step.dependOn(&(try core.testStep(b, optimize, target)).step);
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all_tests_step.dependOn(glfw_test_step);
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all_tests_step.dependOn(gpu_test_step);
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all_tests_step.dependOn(core_test_step);
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// Compiles the `libmachcore` shared library
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const shared_lib = try core.buildSharedLib(b, optimize, target, options);
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b.installArtifact(shared_lib);
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}
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const compile_all = b.step("compile-all", "Compile Mach");
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compile_all.dependOn(b.getInstallStep());
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}
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fn sdkPath(comptime suffix: []const u8) []const u8 {
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if (suffix[0] != '/') @compileError("suffix must be an absolute path");
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return comptime blk: {
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const root_dir = std.fs.path.dirname(@src().file) orelse ".";
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break :blk root_dir ++ suffix;
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};
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}
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pub fn Sdk(comptime deps: anytype) type {
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return struct {
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pub const Options = struct {
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glfw_options: deps.glfw.Options = .{},
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gpu_dawn_options: deps.gpu_dawn.Options = .{},
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pub fn gpuOptions(options: Options) deps.gpu.Options {
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return .{
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.gpu_dawn_options = options.gpu_dawn_options,
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};
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}
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};
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var _module: ?*std.build.Module = null;
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pub fn module(b: *std.Build) *std.build.Module {
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if (_module) |m| return m;
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const gamemode_dep = b.dependency("mach_gamemode", .{});
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_module = b.createModule(.{
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.source_file = .{ .path = sdkPath("/src/main.zig") },
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.dependencies = &.{
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.{ .name = "gpu", .module = deps.gpu.module(b) },
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.{ .name = "glfw", .module = deps.glfw.module(b) },
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.{ .name = "gamemode", .module = gamemode_dep.module("mach-gamemode") },
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},
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});
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return _module.?;
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}
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pub fn testStep(b: *std.Build, optimize: std.builtin.OptimizeMode, target: std.zig.CrossTarget) !*std.build.RunStep {
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const main_tests = b.addTest(.{
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.name = "core-tests",
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.root_source_file = .{ .path = sdkPath("/src/main.zig") },
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.target = target,
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.optimize = optimize,
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});
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var iter = module(b).dependencies.iterator();
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while (iter.next()) |e| {
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main_tests.addModule(e.key_ptr.*, e.value_ptr.*);
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}
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main_tests.addModule("glfw", deps.glfw.module(b));
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try deps.glfw.link(b, main_tests, .{});
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if (target.isLinux()) {
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const gamemode_dep = b.dependency("mach_gamemode", .{});
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main_tests.addModule("gamemode", gamemode_dep.module("mach-gamemode"));
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}
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main_tests.addIncludePath(sdkPath("/include"));
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b.installArtifact(main_tests);
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return b.addRunArtifact(main_tests);
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}
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pub fn buildSharedLib(b: *std.Build, optimize: std.builtin.OptimizeMode, target: std.zig.CrossTarget, options: Options) !*std.build.CompileStep {
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// TODO(build): this should use the App abstraction instead of being built manually
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const lib = b.addSharedLibrary(.{ .name = "machcore", .root_source_file = .{ .path = "src/platform/libmachcore.zig" }, .target = target, .optimize = optimize });
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lib.main_pkg_path = "src/";
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const app_module = b.createModule(.{
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.source_file = .{ .path = "src/platform/libmachcore_app.zig" },
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});
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lib.addModule("app", app_module);
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lib.addModule("glfw", deps.glfw.module(b));
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lib.addModule("gpu", deps.gpu.module(b));
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if (target.isLinux()) {
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const gamemode_dep = b.dependency("mach_gamemode", .{});
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lib.addModule("gamemode", gamemode_dep.module("mach-gamemode"));
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}
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try deps.glfw.link(b, lib, options.glfw_options);
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try deps.gpu.link(b, lib, options.gpuOptions());
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return lib;
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}
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pub const App = struct {
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b: *std.Build,
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name: []const u8,
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step: *std.build.CompileStep,
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platform: Platform,
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res_dirs: ?[]const []const u8,
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watch_paths: ?[]const []const u8,
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sysjs_dep: ?*std.Build.Dependency,
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const web_install_dir = std.build.InstallDir{ .custom = "www" };
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pub const Platform = enum {
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native,
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web,
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pub fn fromTarget(target: std.Target) Platform {
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if (target.cpu.arch == .wasm32) return .web;
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return .native;
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}
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};
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pub fn init(
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b: *std.Build,
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options: struct {
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name: []const u8,
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src: []const u8,
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target: std.zig.CrossTarget,
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optimize: std.builtin.OptimizeMode,
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deps: ?[]const std.build.ModuleDependency = null,
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res_dirs: ?[]const []const u8 = null,
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watch_paths: ?[]const []const u8 = null,
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},
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) !App {
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const target = (try std.zig.system.NativeTargetInfo.detect(options.target)).target;
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const platform = Platform.fromTarget(target);
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var dependencies = std.ArrayList(std.build.ModuleDependency).init(b.allocator);
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try dependencies.append(.{ .name = "core", .module = module(b) });
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if (options.deps) |app_deps| try dependencies.appendSlice(app_deps);
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const app_module = b.createModule(.{
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.source_file = .{ .path = options.src },
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.dependencies = try dependencies.toOwnedSlice(),
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});
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const sysjs_dep = if (platform == .web) b.dependency("mach_sysjs", .{
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.target = options.target,
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.optimize = options.optimize,
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}) else null;
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const step = blk: {
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if (platform == .web) {
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const lib = b.addSharedLibrary(.{
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.name = options.name,
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.root_source_file = .{ .path = sdkPath("/src/entry.zig") },
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.target = options.target,
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.optimize = options.optimize,
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});
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lib.rdynamic = true;
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lib.addModule("sysjs", sysjs_dep.?.module("mach-sysjs"));
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break :blk lib;
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} else {
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const exe = b.addExecutable(.{
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.name = options.name,
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.root_source_file = .{ .path = sdkPath("/src/entry.zig") },
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.target = options.target,
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.optimize = options.optimize,
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});
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// TODO(core): figure out why we need to disable LTO: https://github.com/hexops/mach/issues/597
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exe.want_lto = false;
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exe.addModule("glfw", deps.glfw.module(b));
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if (target.os.tag == .linux) {
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const gamemode_dep = b.dependency("mach_gamemode", .{});
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exe.addModule("gamemode", gamemode_dep.module("mach-gamemode"));
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}
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break :blk exe;
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}
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};
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step.main_pkg_path = sdkPath("/src");
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step.addModule("core", module(b));
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step.addModule("app", app_module);
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return .{
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.b = b,
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.step = step,
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.name = options.name,
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.platform = platform,
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.res_dirs = options.res_dirs,
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.watch_paths = options.watch_paths,
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.sysjs_dep = sysjs_dep,
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};
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}
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pub fn link(app: *const App, options: Options) !void {
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if (app.platform != .web) {
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try deps.glfw.link(app.b, app.step, options.glfw_options);
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deps.gpu.link(app.b, app.step, options.gpuOptions()) catch return error.FailedToLinkGPU;
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}
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}
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pub fn install(app: *const App) void {
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app.b.installArtifact(app.step);
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// Install additional files (mach.js and mach-sysjs.js)
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// in case of wasm
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if (app.platform == .web) {
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// Set install directory to '{prefix}/www'
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app.getInstallStep().?.dest_dir = web_install_dir;
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inline for (.{ sdkPath("/src/platform/wasm/mach.js"), @import("mach_sysjs").getJSPath() }) |js| {
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const install_js = app.b.addInstallFileWithDir(
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.{ .path = js },
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web_install_dir,
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std.fs.path.basename(js),
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);
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app.getInstallStep().?.step.dependOn(&install_js.step);
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}
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}
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// Install resources
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if (app.res_dirs) |res_dirs| {
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for (res_dirs) |res| {
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const install_res = app.b.addInstallDirectory(.{
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.source_dir = .{ .path = res },
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.install_dir = app.getInstallStep().?.dest_dir,
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.install_subdir = std.fs.path.basename(res),
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.exclude_extensions = &.{},
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});
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app.getInstallStep().?.step.dependOn(&install_res.step);
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}
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}
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}
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pub fn addRunArtifact(app: *const App) *std.build.RunStep {
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return app.b.addRunArtifact(app.step);
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}
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pub fn getInstallStep(app: *const App) ?*std.build.InstallArtifactStep {
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return app.b.addInstallArtifact(app.step);
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}
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};
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};
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}
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