105 lines
3.7 KiB
Zig
105 lines
3.7 KiB
Zig
const std = @import("std");
|
|
pub const gpu = @import("gpu/build.zig");
|
|
const gpu_dawn = @import("gpu-dawn/build.zig");
|
|
pub const glfw = @import("glfw/build.zig");
|
|
const Pkg = std.build.Pkg;
|
|
|
|
pub fn build(b: *std.build.Builder) void {
|
|
const mode = b.standardReleaseOptions();
|
|
const target = b.standardTargetOptions(.{});
|
|
|
|
const gpu_dawn_options = gpu_dawn.Options{
|
|
.from_source = b.option(bool, "dawn-from-source", "Build Dawn from source") orelse false,
|
|
};
|
|
const options = Options{ .gpu_dawn_options = gpu_dawn_options };
|
|
|
|
const main_tests = b.addTest("src/main.zig");
|
|
main_tests.setBuildMode(mode);
|
|
main_tests.setTarget(target);
|
|
main_tests.addPackage(pkg);
|
|
main_tests.addPackage(gpu.pkg);
|
|
main_tests.addPackage(glfw.pkg);
|
|
link(b, main_tests, options);
|
|
|
|
const test_step = b.step("test", "Run library tests");
|
|
test_step.dependOn(&main_tests.step);
|
|
|
|
// TODO(build-system): https://github.com/hexops/mach/issues/229#issuecomment-1100958939
|
|
ensureDependencySubmodule(b.allocator, "examples/libs/zmath") catch unreachable;
|
|
|
|
inline for ([_]ExampleDefinition{
|
|
.{ .name = "triangle" },
|
|
.{ .name = "boids" },
|
|
.{ .name = "rotating-cube", .packages = &[_]Pkg{Packages.zmath} },
|
|
.{ .name = "two-cubes", .packages = &[_]Pkg{Packages.zmath} },
|
|
}) |example| {
|
|
const example_exe = b.addExecutable("example-" ++ example.name, "examples/" ++ example.name ++ "/main.zig");
|
|
example_exe.setTarget(target);
|
|
example_exe.setBuildMode(mode);
|
|
example_exe.addPackage(pkg);
|
|
example_exe.addPackage(gpu.pkg);
|
|
example_exe.addPackage(glfw.pkg);
|
|
inline for (example.packages) |additional_package| {
|
|
example_exe.addPackage(additional_package);
|
|
}
|
|
link(b, example_exe, options);
|
|
example_exe.install();
|
|
|
|
const example_run_cmd = example_exe.run();
|
|
example_run_cmd.step.dependOn(b.getInstallStep());
|
|
const example_run_step = b.step("run-example-" ++ example.name, "Run the example");
|
|
example_run_step.dependOn(&example_run_cmd.step);
|
|
}
|
|
}
|
|
|
|
pub const Options = struct {
|
|
glfw_options: glfw.Options = .{},
|
|
gpu_dawn_options: gpu_dawn.Options = .{},
|
|
};
|
|
|
|
const ExampleDefinition = struct {
|
|
name: []const u8,
|
|
packages: []const Pkg = &[_]Pkg{},
|
|
};
|
|
|
|
const Packages = struct {
|
|
const zmath = zmath_pkg;
|
|
};
|
|
|
|
// Declared here because submodule may not be cloned at the time build.zig runs.
|
|
const zmath_pkg = std.build.Pkg{
|
|
.name = "zmath",
|
|
.path = .{ .path = "examples/libs/zmath/src/zmath.zig" },
|
|
};
|
|
|
|
pub const pkg = std.build.Pkg{
|
|
.name = "mach",
|
|
.path = .{ .path = thisDir() ++ "/src/main.zig" },
|
|
.dependencies = &.{ gpu.pkg, glfw.pkg },
|
|
};
|
|
|
|
pub fn link(b: *std.build.Builder, step: *std.build.LibExeObjStep, options: Options) void {
|
|
const gpu_options = gpu.Options{
|
|
.glfw_options = @bitCast(@import("gpu/libs/mach-glfw/build.zig").Options, options.glfw_options),
|
|
.gpu_dawn_options = @bitCast(@import("gpu/libs/mach-gpu-dawn/build.zig").Options, options.gpu_dawn_options),
|
|
};
|
|
|
|
glfw.link(b, step, options.glfw_options);
|
|
gpu.link(b, step, gpu_options);
|
|
}
|
|
|
|
fn thisDir() []const u8 {
|
|
return std.fs.path.dirname(@src().file) orelse ".";
|
|
}
|
|
|
|
fn ensureDependencySubmodule(allocator: std.mem.Allocator, path: []const u8) !void {
|
|
if (std.process.getEnvVarOwned(allocator, "NO_ENSURE_SUBMODULES")) |no_ensure_submodules| {
|
|
if (std.mem.eql(u8, no_ensure_submodules, "true")) return;
|
|
} else |_| {}
|
|
const child = try std.ChildProcess.init(&.{ "git", "submodule", "update", "--init", path }, allocator);
|
|
child.cwd = thisDir();
|
|
child.stderr = std.io.getStdErr();
|
|
child.stdout = std.io.getStdOut();
|
|
|
|
_ = try child.spawnAndWait();
|
|
}
|