ac17de5074
Removes the second build.zig in the examples directory and incorporates it into the main build.zig. This gives the zig build system the data needed to know if the raylib library needs to be rebuilt when running any example.
534 lines
22 KiB
Zig
534 lines
22 KiB
Zig
const std = @import("std");
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const builtin = @import("builtin");
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/// Minimum supported version of Zig
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const min_ver = "0.13.0";
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comptime {
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const order = std.SemanticVersion.order;
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const parse = std.SemanticVersion.parse;
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if (order(builtin.zig_version, parse(min_ver) catch unreachable) == .lt)
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@compileError("Raylib requires zig version " ++ min_ver);
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}
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fn setDesktopPlatform(raylib: *std.Build.Step.Compile, platform: PlatformBackend) void {
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switch (platform) {
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.glfw => raylib.root_module.addCMacro("PLATFORM_DESKTOP_GLFW", ""),
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.rgfw => raylib.root_module.addCMacro("PLATFORM_DESKTOP_RGFW", ""),
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.sdl => raylib.root_module.addCMacro("PLATFORM_DESKTOP_SDL", ""),
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else => {},
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}
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}
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fn createEmsdkStep(b: *std.Build, emsdk: *std.Build.Dependency) *std.Build.Step.Run {
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if (builtin.os.tag == .windows) {
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return b.addSystemCommand(&.{emsdk.path("emsdk.bat").getPath(b)});
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} else {
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return b.addSystemCommand(&.{emsdk.path("emsdk").getPath(b)});
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}
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}
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fn emSdkSetupStep(b: *std.Build, emsdk: *std.Build.Dependency) !?*std.Build.Step.Run {
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const dot_emsc_path = emsdk.path(".emscripten").getPath(b);
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const dot_emsc_exists = !std.meta.isError(std.fs.accessAbsolute(dot_emsc_path, .{}));
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if (!dot_emsc_exists) {
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const emsdk_install = createEmsdkStep(b, emsdk);
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emsdk_install.addArgs(&.{ "install", "latest" });
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const emsdk_activate = createEmsdkStep(b, emsdk);
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emsdk_activate.addArgs(&.{ "activate", "latest" });
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emsdk_activate.step.dependOn(&emsdk_install.step);
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return emsdk_activate;
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} else {
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return null;
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}
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}
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/// A list of all flags from `src/config.h` that one may override
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const config_h_flags = outer: {
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// Set this value higher if compile errors happen as `src/config.h` gets larger
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@setEvalBranchQuota(1 << 20);
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const config_h = @embedFile("src/config.h");
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var flags: [std.mem.count(u8, config_h, "\n") + 1][]const u8 = undefined;
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var i = 0;
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var lines = std.mem.tokenizeScalar(u8, config_h, '\n');
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while (lines.next()) |line| {
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if (!std.mem.containsAtLeast(u8, line, 1, "SUPPORT")) continue;
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if (std.mem.containsAtLeast(u8, line, 1, "MODULE")) continue;
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if (std.mem.startsWith(u8, line, "//")) continue;
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if (std.mem.startsWith(u8, line, "#if")) continue;
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var flag = std.mem.trimLeft(u8, line, " \t"); // Trim whitespace
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flag = flag["#define ".len - 1 ..]; // Remove #define
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flag = std.mem.trimLeft(u8, flag, " \t"); // Trim whitespace
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flag = flag[0 .. std.mem.indexOf(u8, flag, " ") orelse continue]; // Flag is only one word, so capture till space
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flag = "-D" ++ flag; // Prepend with -D
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flags[i] = flag;
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i += 1;
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}
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// Uncomment this to check what flags normally get passed
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//@compileLog(flags[0..i].*);
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break :outer flags[0..i].*;
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};
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fn compileRaylib(b: *std.Build, target: std.Build.ResolvedTarget, optimize: std.builtin.OptimizeMode, options: Options) !*std.Build.Step.Compile {
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var raylib_flags_arr = std.ArrayList([]const u8).init(b.allocator);
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defer raylib_flags_arr.deinit();
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try raylib_flags_arr.appendSlice(&[_][]const u8{
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"-std=gnu99",
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"-D_GNU_SOURCE",
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"-DGL_SILENCE_DEPRECATION=199309L",
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"-fno-sanitize=undefined", // https://github.com/raysan5/raylib/issues/3674
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});
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if (options.shared) {
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try raylib_flags_arr.appendSlice(&[_][]const u8{
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"-fPIC",
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"-DBUILD_LIBTYPE_SHARED",
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});
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}
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// Sets a flag indiciating the use of a custom `config.h`
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try raylib_flags_arr.append("-DEXTERNAL_CONFIG_FLAGS");
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if (options.config.len > 0) {
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// Splits a space-separated list of config flags into multiple flags
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//
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// Note: This means certain flags like `-x c++` won't be processed properly.
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// `-xc++` or similar should be used when possible
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var config_iter = std.mem.tokenizeScalar(u8, options.config, ' ');
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// Apply config flags supplied by the user
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while (config_iter.next()) |config_flag|
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try raylib_flags_arr.append(config_flag);
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// Apply all relevant configs from `src/config.h` *except* the user-specified ones
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//
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// Note: Currently using a suboptimal `O(m*n)` time algorithm where:
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// `m` corresponds roughly to the number of lines in `src/config.h`
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// `n` corresponds to the number of user-specified flags
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outer: for (config_h_flags) |flag| {
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// If a user already specified the flag, skip it
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config_iter.reset();
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while (config_iter.next()) |config_flag| {
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// For a user-specified flag to match, it must share the same prefix and have the
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// same length or be followed by an equals sign
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if (!std.mem.startsWith(u8, config_flag, flag)) continue;
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if (config_flag.len == flag.len or config_flag[flag.len] == '=') continue :outer;
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}
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// Otherwise, append default value from config.h to compile flags
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try raylib_flags_arr.append(flag);
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}
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} else {
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// Set default config if no custome config got set
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try raylib_flags_arr.appendSlice(&config_h_flags);
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}
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const raylib = if (options.shared)
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b.addSharedLibrary(.{
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.name = "raylib",
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.target = target,
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.optimize = optimize,
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})
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else
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b.addStaticLibrary(.{
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.name = "raylib",
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.target = target,
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.optimize = optimize,
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});
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raylib.linkLibC();
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// No GLFW required on PLATFORM_DRM
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if (options.platform != .drm) {
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raylib.addIncludePath(b.path("src/external/glfw/include"));
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}
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var c_source_files = try std.ArrayList([]const u8).initCapacity(b.allocator, 2);
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c_source_files.appendSliceAssumeCapacity(&.{ "src/rcore.c", "src/utils.c" });
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if (options.rshapes) {
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try c_source_files.append("src/rshapes.c");
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try raylib_flags_arr.append("-DSUPPORT_MODULE_RSHAPES");
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}
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if (options.rtextures) {
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try c_source_files.append("src/rtextures.c");
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try raylib_flags_arr.append("-DSUPPORT_MODULE_RTEXTURES");
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}
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if (options.rtext) {
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try c_source_files.append("src/rtext.c");
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try raylib_flags_arr.append("-DSUPPORT_MODULE_RTEXT");
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}
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if (options.rmodels) {
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try c_source_files.append("src/rmodels.c");
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try raylib_flags_arr.append("-DSUPPORT_MODULE_RMODELS");
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}
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if (options.raudio) {
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try c_source_files.append("src/raudio.c");
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try raylib_flags_arr.append("-DSUPPORT_MODULE_RAUDIO");
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}
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if (options.opengl_version != .auto) {
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raylib.root_module.addCMacro(options.opengl_version.toCMacroStr(), "");
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}
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raylib.addIncludePath(b.path("src/platforms"));
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switch (target.result.os.tag) {
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.windows => {
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try c_source_files.append("src/rglfw.c");
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raylib.linkSystemLibrary("winmm");
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raylib.linkSystemLibrary("gdi32");
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raylib.linkSystemLibrary("opengl32");
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setDesktopPlatform(raylib, options.platform);
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},
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.linux => {
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if (options.platform != .drm) {
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try c_source_files.append("src/rglfw.c");
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if (options.linux_display_backend == .X11 or options.linux_display_backend == .Both) {
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raylib.root_module.addCMacro("_GLFW_X11", "");
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raylib.linkSystemLibrary("GLX");
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raylib.linkSystemLibrary("X11");
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raylib.linkSystemLibrary("Xcursor");
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raylib.linkSystemLibrary("Xext");
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raylib.linkSystemLibrary("Xfixes");
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raylib.linkSystemLibrary("Xi");
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raylib.linkSystemLibrary("Xinerama");
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raylib.linkSystemLibrary("Xrandr");
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raylib.linkSystemLibrary("Xrender");
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}
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if (options.linux_display_backend == .Wayland or options.linux_display_backend == .Both) {
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_ = b.findProgram(&.{"wayland-scanner"}, &.{}) catch {
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std.log.err(
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\\ `wayland-scanner` may not be installed on the system.
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\\ You can switch to X11 in your `build.zig` by changing `Options.linux_display_backend`
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, .{});
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@panic("`wayland-scanner` not found");
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};
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raylib.root_module.addCMacro("_GLFW_WAYLAND", "");
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raylib.linkSystemLibrary("EGL");
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raylib.linkSystemLibrary("wayland-client");
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raylib.linkSystemLibrary("xkbcommon");
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waylandGenerate(b, raylib, "wayland.xml", "wayland-client-protocol");
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waylandGenerate(b, raylib, "xdg-shell.xml", "xdg-shell-client-protocol");
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waylandGenerate(b, raylib, "xdg-decoration-unstable-v1.xml", "xdg-decoration-unstable-v1-client-protocol");
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waylandGenerate(b, raylib, "viewporter.xml", "viewporter-client-protocol");
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waylandGenerate(b, raylib, "relative-pointer-unstable-v1.xml", "relative-pointer-unstable-v1-client-protocol");
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waylandGenerate(b, raylib, "pointer-constraints-unstable-v1.xml", "pointer-constraints-unstable-v1-client-protocol");
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waylandGenerate(b, raylib, "fractional-scale-v1.xml", "fractional-scale-v1-client-protocol");
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waylandGenerate(b, raylib, "xdg-activation-v1.xml", "xdg-activation-v1-client-protocol");
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waylandGenerate(b, raylib, "idle-inhibit-unstable-v1.xml", "idle-inhibit-unstable-v1-client-protocol");
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}
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setDesktopPlatform(raylib, options.platform);
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} else {
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if (options.opengl_version == .auto) {
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raylib.linkSystemLibrary("GLESv2");
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raylib.root_module.addCMacro("GRAPHICS_API_OPENGL_ES2", "");
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}
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raylib.linkSystemLibrary("EGL");
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raylib.linkSystemLibrary("gbm");
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raylib.linkSystemLibrary2("libdrm", .{ .use_pkg_config = .force });
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raylib.root_module.addCMacro("PLATFORM_DRM", "");
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raylib.root_module.addCMacro("EGL_NO_X11", "");
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raylib.root_module.addCMacro("DEFAULT_BATCH_BUFFER_ELEMENT", "");
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}
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},
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.freebsd, .openbsd, .netbsd, .dragonfly => {
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try c_source_files.append("rglfw.c");
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raylib.linkSystemLibrary("GL");
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raylib.linkSystemLibrary("rt");
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raylib.linkSystemLibrary("dl");
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raylib.linkSystemLibrary("m");
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raylib.linkSystemLibrary("X11");
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raylib.linkSystemLibrary("Xrandr");
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raylib.linkSystemLibrary("Xinerama");
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raylib.linkSystemLibrary("Xi");
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raylib.linkSystemLibrary("Xxf86vm");
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raylib.linkSystemLibrary("Xcursor");
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setDesktopPlatform(raylib, options.platform);
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},
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.macos => {
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// Include xcode_frameworks for cross compilation
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if (b.lazyDependency("xcode_frameworks", .{})) |dep| {
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raylib.addSystemFrameworkPath(dep.path("Frameworks"));
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raylib.addSystemIncludePath(dep.path("include"));
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raylib.addLibraryPath(dep.path("lib"));
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}
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// On macos rglfw.c include Objective-C files.
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try raylib_flags_arr.append("-ObjC");
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raylib.root_module.addCSourceFile(.{
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.file = b.path("src/rglfw.c"),
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.flags = raylib_flags_arr.items,
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});
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_ = raylib_flags_arr.pop();
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raylib.linkFramework("Foundation");
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raylib.linkFramework("CoreServices");
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raylib.linkFramework("CoreGraphics");
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raylib.linkFramework("AppKit");
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raylib.linkFramework("IOKit");
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setDesktopPlatform(raylib, options.platform);
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},
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.emscripten => {
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// Include emscripten for cross compilation
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if (b.lazyDependency("emsdk", .{})) |dep| {
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if (try emSdkSetupStep(b, dep)) |emSdkStep| {
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raylib.step.dependOn(&emSdkStep.step);
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}
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raylib.addIncludePath(dep.path("upstream/emscripten/cache/sysroot/include"));
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}
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raylib.root_module.addCMacro("PLATFORM_WEB", "");
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if (options.opengl_version == .auto) {
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raylib.root_module.addCMacro("GRAPHICS_API_OPENGL_ES2", "");
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}
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},
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else => {
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@panic("Unsupported OS");
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},
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}
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raylib.root_module.addCSourceFiles(.{
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.files = c_source_files.items,
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.flags = raylib_flags_arr.items,
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});
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return raylib;
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}
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pub fn addRaygui(b: *std.Build, raylib: *std.Build.Step.Compile, raygui_dep: *std.Build.Dependency) void {
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const raylib_dep = b.dependencyFromBuildZig(@This(), .{});
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var gen_step = b.addWriteFiles();
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raylib.step.dependOn(&gen_step.step);
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const raygui_c_path = gen_step.add("raygui.c", "#define RAYGUI_IMPLEMENTATION\n#include \"raygui.h\"\n");
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raylib.addCSourceFile(.{ .file = raygui_c_path });
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raylib.addIncludePath(raygui_dep.path("src"));
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raylib.addIncludePath(raylib_dep.path("src"));
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raylib.installHeader(raygui_dep.path("src/raygui.h"), "raygui.h");
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}
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pub const Options = struct {
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raudio: bool = true,
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rmodels: bool = true,
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rshapes: bool = true,
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rtext: bool = true,
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rtextures: bool = true,
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platform: PlatformBackend = .glfw,
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shared: bool = false,
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linux_display_backend: LinuxDisplayBackend = .Both,
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opengl_version: OpenglVersion = .auto,
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/// config should be a list of space-separated cflags, eg, "-DSUPPORT_CUSTOM_FRAME_CONTROL"
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config: []const u8 = &.{},
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const defaults = Options{};
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pub fn getOptions(b: *std.Build) Options {
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return .{
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.platform = b.option(PlatformBackend, "platform", "Choose the platform backedn for desktop target") orelse defaults.platform,
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.raudio = b.option(bool, "raudio", "Compile with audio support") orelse defaults.raudio,
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.rmodels = b.option(bool, "rmodels", "Compile with models support") orelse defaults.rmodels,
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.rtext = b.option(bool, "rtext", "Compile with text support") orelse defaults.rtext,
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.rtextures = b.option(bool, "rtextures", "Compile with textures support") orelse defaults.rtextures,
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.rshapes = b.option(bool, "rshapes", "Compile with shapes support") orelse defaults.rshapes,
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.shared = b.option(bool, "shared", "Compile as shared library") orelse defaults.shared,
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.linux_display_backend = b.option(LinuxDisplayBackend, "linux_display_backend", "Linux display backend to use") orelse defaults.linux_display_backend,
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.opengl_version = b.option(OpenglVersion, "opengl_version", "OpenGL version to use") orelse defaults.opengl_version,
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.config = b.option([]const u8, "config", "Compile with custom define macros overriding config.h") orelse &.{},
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};
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}
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};
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pub const OpenglVersion = enum {
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auto,
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gl_1_1,
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gl_2_1,
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gl_3_3,
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gl_4_3,
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gles_2,
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gles_3,
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pub fn toCMacroStr(self: @This()) []const u8 {
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switch (self) {
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.auto => @panic("OpenglVersion.auto cannot be turned into a C macro string"),
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.gl_1_1 => return "GRAPHICS_API_OPENGL_11",
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.gl_2_1 => return "GRAPHICS_API_OPENGL_21",
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.gl_3_3 => return "GRAPHICS_API_OPENGL_33",
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.gl_4_3 => return "GRAPHICS_API_OPENGL_43",
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.gles_2 => return "GRAPHICS_API_OPENGL_ES2",
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.gles_3 => return "GRAPHICS_API_OPENGL_ES3",
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}
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}
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};
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pub const LinuxDisplayBackend = enum {
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X11,
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Wayland,
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Both,
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};
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pub const PlatformBackend = enum {
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glfw,
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rgfw,
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sdl,
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drm,
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};
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pub fn build(b: *std.Build) !void {
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// Standard target options allows the person running `zig build` to choose
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// what target to build for. Here we do not override the defaults, which
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// means any target is allowed, and the default is native. Other options
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// for restricting supported target set are available.
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const target = b.standardTargetOptions(.{});
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// Standard optimization options allow the person running `zig build` to select
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// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
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// set a preferred release mode, allowing the user to decide how to optimize.
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const optimize = b.standardOptimizeOption(.{});
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const lib = try compileRaylib(b, target, optimize, Options.getOptions(b));
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lib.installHeader(b.path("src/raylib.h"), "raylib.h");
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lib.installHeader(b.path("src/rcamera.h"), "rcamera.h");
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lib.installHeader(b.path("src/raymath.h"), "raymath.h");
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lib.installHeader(b.path("src/rlgl.h"), "rlgl.h");
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b.installArtifact(lib);
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const examples = b.step("examples", "Build/Install all examples");
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examples.dependOn(try addExamples("audio", b, target, optimize, lib));
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examples.dependOn(try addExamples("core", b, target, optimize, lib));
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examples.dependOn(try addExamples("models", b, target, optimize, lib));
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examples.dependOn(try addExamples("others", b, target, optimize, lib));
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examples.dependOn(try addExamples("shaders", b, target, optimize, lib));
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examples.dependOn(try addExamples("shapes", b, target, optimize, lib));
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examples.dependOn(try addExamples("text", b, target, optimize, lib));
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examples.dependOn(try addExamples("textures", b, target, optimize, lib));
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}
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fn waylandGenerate(
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b: *std.Build,
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raylib: *std.Build.Step.Compile,
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comptime protocol: []const u8,
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comptime basename: []const u8,
|
|
) void {
|
|
const waylandDir = "src/external/glfw/deps/wayland";
|
|
const protocolDir = b.pathJoin(&.{ waylandDir, protocol });
|
|
const clientHeader = basename ++ ".h";
|
|
const privateCode = basename ++ "-code.h";
|
|
|
|
const client_step = b.addSystemCommand(&.{ "wayland-scanner", "client-header" });
|
|
client_step.addFileArg(b.path(protocolDir));
|
|
raylib.addIncludePath(client_step.addOutputFileArg(clientHeader).dirname());
|
|
|
|
const private_step = b.addSystemCommand(&.{ "wayland-scanner", "private-code" });
|
|
private_step.addFileArg(b.path(protocolDir));
|
|
raylib.addIncludePath(private_step.addOutputFileArg(privateCode).dirname());
|
|
|
|
raylib.step.dependOn(&client_step.step);
|
|
raylib.step.dependOn(&private_step.step);
|
|
}
|
|
|
|
fn addExamples(
|
|
comptime module: []const u8,
|
|
b: *std.Build,
|
|
target: std.Build.ResolvedTarget,
|
|
optimize: std.builtin.OptimizeMode,
|
|
raylib: *std.Build.Step.Compile,
|
|
) !*std.Build.Step {
|
|
if (target.result.os.tag == .emscripten) {
|
|
@panic("Emscripten building via Zig unsupported");
|
|
}
|
|
|
|
const all = b.step(module, "All " ++ module ++ " examples");
|
|
const module_subpath = b.pathJoin(&.{ "examples", module });
|
|
var dir = try std.fs.cwd().openDir(b.pathFromRoot(module_subpath), .{ .iterate = true });
|
|
defer if (comptime builtin.zig_version.minor >= 12) dir.close();
|
|
|
|
var iter = dir.iterate();
|
|
while (try iter.next()) |entry| {
|
|
if (entry.kind != .file) continue;
|
|
const extension_idx = std.mem.lastIndexOf(u8, entry.name, ".c") orelse continue;
|
|
const name = entry.name[0..extension_idx];
|
|
const path = b.pathJoin(&.{ module_subpath, entry.name });
|
|
|
|
// zig's mingw headers do not include pthread.h
|
|
if (std.mem.eql(u8, "core_loading_thread", name) and target.result.os.tag == .windows) continue;
|
|
|
|
const exe = b.addExecutable(.{
|
|
.name = name,
|
|
.target = target,
|
|
.optimize = optimize,
|
|
});
|
|
exe.addCSourceFile(.{ .file = b.path(path), .flags = &.{} });
|
|
exe.linkLibC();
|
|
|
|
// special examples that test using these external dependencies directly
|
|
// alongside raylib
|
|
if (std.mem.eql(u8, name, "rlgl_standalone")) {
|
|
exe.addIncludePath(b.path("src"));
|
|
exe.addIncludePath(b.path("src/external/glfw/include"));
|
|
}
|
|
if (std.mem.eql(u8, name, "raylib_opengl_interop")) {
|
|
exe.addIncludePath(b.path("src/external"));
|
|
}
|
|
|
|
exe.linkLibrary(raylib);
|
|
|
|
switch (target.result.os.tag) {
|
|
.windows => {
|
|
exe.linkSystemLibrary("winmm");
|
|
exe.linkSystemLibrary("gdi32");
|
|
exe.linkSystemLibrary("opengl32");
|
|
|
|
exe.root_module.addCMacro("PLATFORM_DESKTOP", "");
|
|
},
|
|
.linux => {
|
|
exe.linkSystemLibrary("GL");
|
|
exe.linkSystemLibrary("rt");
|
|
exe.linkSystemLibrary("dl");
|
|
exe.linkSystemLibrary("m");
|
|
exe.linkSystemLibrary("X11");
|
|
|
|
exe.root_module.addCMacro("PLATFORM_DESKTOP", "");
|
|
},
|
|
.macos => {
|
|
exe.linkFramework("Foundation");
|
|
exe.linkFramework("Cocoa");
|
|
exe.linkFramework("OpenGL");
|
|
exe.linkFramework("CoreAudio");
|
|
exe.linkFramework("CoreVideo");
|
|
exe.linkFramework("IOKit");
|
|
|
|
exe.root_module.addCMacro("PLATFORM_DESKTOP", "");
|
|
},
|
|
else => {
|
|
@panic("Unsupported OS");
|
|
},
|
|
}
|
|
|
|
const install_cmd = b.addInstallArtifact(exe, .{});
|
|
|
|
const run_cmd = b.addRunArtifact(exe);
|
|
run_cmd.cwd = b.path(module_subpath);
|
|
run_cmd.step.dependOn(&install_cmd.step);
|
|
|
|
const run_step = b.step(name, name);
|
|
run_step.dependOn(&run_cmd.step);
|
|
|
|
all.dependOn(&install_cmd.step);
|
|
}
|
|
return all;
|
|
}
|