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build.zig
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build.zig
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const std = @import("std");
const Pkg = std.Build.Pkg;
const Compile = std.Build.Step.Compile;
pub fn build(b: *std.Build) !void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
const dvui_sdl = addDvuiModule(b, target, optimize, .sdl);
const dvui_raylib = addDvuiModule(b, target, optimize, .raylib);
addExample(b, target, optimize, "sdl-standalone", dvui_sdl);
addExample(b, target, optimize, "sdl-ontop", dvui_sdl);
addExample(b, target, optimize, "raylib-standalone", dvui_raylib);
addExample(b, target, optimize, "raylib-ontop", dvui_raylib);
// web test
{
const webtarget = std.Target.Query{
.cpu_arch = .wasm32,
.os_tag = .freestanding,
.abi = .musl,
};
const dvui_mod_web = b.addModule("dvui_web", .{
.root_source_file = b.path("src/dvui.zig"),
.target = b.resolveTargetQuery(webtarget),
.optimize = optimize,
});
dvui_mod_web.addCSourceFiles(.{
.files = &.{
"src/stb/stb_image_impl.c",
"src/stb/stb_truetype_impl.c",
},
.flags = &.{"-DINCLUDE_CUSTOM_LIBC_FUNCS=1"},
});
dvui_mod_web.addIncludePath(b.path("src/stb"));
const wasm = b.addExecutable(.{
.name = "web-test",
.root_source_file = b.path("examples/web-test.zig"),
.target = b.resolveTargetQuery(webtarget),
.optimize = optimize,
.link_libc = true,
});
wasm.entry = .disabled;
wasm.root_module.addImport("dvui", dvui_mod_web);
const web_mod = b.addModule("WebBackend", .{
.root_source_file = b.path("src/backends/WebBackend.zig"),
});
web_mod.export_symbol_names = &[_][]const u8{
"app_init",
"app_deinit",
"app_update",
"add_event",
"arena_u8",
"gpa_u8",
"gpa_free",
};
wasm.root_module.addImport("WebBackend", web_mod);
web_mod.addImport("dvui", dvui_mod_web);
const install_wasm = b.addInstallArtifact(wasm, .{
.dest_dir = .{ .override = .{ .custom = "bin" } },
});
const cb = b.addExecutable(.{
.name = "cacheBuster",
.root_source_file = b.path("src/cacheBuster.zig"),
.target = b.host,
});
const cb_run = b.addRunArtifact(cb);
cb_run.addFileArg(b.path("src/backends/index.html"));
cb_run.addFileArg(b.path("src/backends/WebBackend.js"));
cb_run.addFileArg(wasm.getEmittedBin());
const output = cb_run.captureStdOut();
const compile_step = b.step("web-test", "Compile the Web test");
compile_step.dependOn(&b.addInstallFileWithDir(output, .prefix, "bin/index.html").step);
compile_step.dependOn(&b.addInstallFileWithDir(b.path("src/backends/WebBackend.js"), .prefix, "bin/WebBackend.js").step);
compile_step.dependOn(&install_wasm.step);
b.getInstallStep().dependOn(compile_step);
}
}
const Backend = enum {
raylib,
sdl,
};
fn addDvuiModule(
b: *std.Build,
target: std.Build.ResolvedTarget,
optimize: std.builtin.OptimizeMode,
comptime backend: Backend,
) *std.Build.Module {
const dvui_mod = b.addModule("dvui_" ++ @tagName(backend), .{
.root_source_file = b.path("src/dvui.zig"),
.target = target,
.optimize = optimize,
});
const options = b.addOptions();
options.addOption(Backend, "backend", backend);
dvui_mod.addOptions("build_options", options);
const backend_mod = b.addModule("backend_" ++ @tagName(backend), .{
.root_source_file = b.path("src/backends/" ++ @tagName(backend) ++ "_backend.zig"),
.target = target,
.optimize = optimize,
.link_libc = switch (backend) {
.raylib => true,
.sdl => true,
},
});
backend_mod.addImport("dvui", dvui_mod);
dvui_mod.addImport("backend", backend_mod);
dvui_mod.addCSourceFiles(.{ .files = &.{
"src/stb/stb_truetype_impl.c",
}});
switch (backend) {
.raylib => {
var raylib_linux_display: []const u8 = "Both";
_ = std.process.getEnvVarOwned(b.allocator, "WAYLAND_DISPLAY") catch |err| switch (err) {
error.EnvironmentVariableNotFound => raylib_linux_display = "X11",
else => @panic("Unknown error checking for WAYLAND_DISPLAY environment variable"),
};
const maybe_ray = b.lazyDependency("raylib", .{ .target = target, .optimize = optimize, .linux_display_backend = raylib_linux_display });
if (maybe_ray) |ray| {
backend_mod.linkLibrary(ray.artifact("raylib"));
// This seems wonky to me, but is copied from raylib's src/build.zig
if (b.lazyDependency("raygui", .{})) |raygui_dep| {
if (b.lazyImport(@This(), "raylib")) |raylib_build| {
raylib_build.addRaygui(b, ray.artifact("raylib"), raygui_dep);
}
}
}
},
.sdl => {
dvui_mod.addCSourceFiles(.{ .files = &.{
"src/stb/stb_image_impl.c",
}});
if (b.systemIntegrationOption("sdl2", .{})) {
backend_mod.linkSystemLibrary("SDL2", .{});
} else {
const sdl_dep = b.lazyDependency("sdl", .{
.target = target,
.optimize = optimize,
});
if (sdl_dep) |sd| {
backend_mod.linkLibrary(sd.artifact("SDL2"));
}
}
},
}
dvui_mod.addIncludePath(b.path("src/stb"));
if (b.systemIntegrationOption("freetype", .{})) {
dvui_mod.linkSystemLibrary("freetype", .{});
} else {
const freetype_dep = b.lazyDependency("freetype", .{
.target = target,
.optimize = optimize,
});
if (freetype_dep) |fd| {
dvui_mod.linkLibrary(fd.artifact("freetype"));
}
}
return dvui_mod;
}
fn addExample(
b: *std.Build,
target: std.Build.ResolvedTarget,
optimize: std.builtin.OptimizeMode,
comptime name: []const u8,
dvui_mod: *std.Build.Module,
) void {
const exe = b.addExecutable(.{
.name = name,
.root_source_file = b.path("examples/" ++ name ++ ".zig"),
.target = target,
.optimize = optimize,
});
exe.root_module.addImport("dvui", dvui_mod);
const compile_step = b.step("compile-" ++ name, "Compile " ++ name);
compile_step.dependOn(&b.addInstallArtifact(exe, .{}).step);
b.getInstallStep().dependOn(compile_step);
const run_cmd = b.addRunArtifact(exe);
run_cmd.step.dependOn(compile_step);
const run_step = b.step(name, "Run " ++ name);
run_step.dependOn(&run_cmd.step);
}
// mach example build code
// note: Disabled currently until mach backend is updated
//
//{
// const name = "mach-test";
// const mach = @import("libs/mach/build.zig");
// const example_app = try mach.App.init(
// b,
// .{
// .name = "mach-test",
// .src = "mach-test.zig",
// .target = target,
// .deps = &[_]Pkg{ Packages.zmath, freetype.pkg },
// },
// );
// example_app.setBuildMode(mode);
// freetype.link(example_app.b, example_app.step, .{});
// try example_app.link(.{});
// const compile_step = b.step("compile-" ++ name, "Compile " ++ name);
// compile_step.dependOn(&b.addInstallArtifact(example_app.step).step);
// b.getInstallStep().dependOn(compile_step);
// const run_cmd = try example_app.run();
// run_cmd.dependOn(compile_step);
// const run_step = b.step(name, "Run " ++ name);
// run_step.dependOn(run_cmd);
//}