From cdda4c4182c9ee068567529715e4a5c68a8efb58 Mon Sep 17 00:00:00 2001 From: bonmas14 Date: Sat, 20 Sep 2025 22:28:15 +0300 Subject: Init commit v1.0 --- deps/raylib/build.zig | 422 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 422 insertions(+) create mode 100644 deps/raylib/build.zig (limited to 'deps/raylib/build.zig') diff --git a/deps/raylib/build.zig b/deps/raylib/build.zig new file mode 100644 index 0000000..5c2ac77 --- /dev/null +++ b/deps/raylib/build.zig @@ -0,0 +1,422 @@ +const std = @import("std"); +const builtin = @import("builtin"); + +/// Minimum supported version of Zig +const min_ver = "0.13.0"; + +comptime { + const order = std.SemanticVersion.order; + const parse = std.SemanticVersion.parse; + if (order(builtin.zig_version, parse(min_ver) catch unreachable) == .lt) + @compileError("Raylib requires zig version " ++ min_ver); +} + +fn setDesktopPlatform(raylib: *std.Build.Step.Compile, platform: PlatformBackend) void { + raylib.defineCMacro("PLATFORM_DESKTOP", null); + + switch (platform) { + .glfw => raylib.defineCMacro("PLATFORM_DESKTOP_GLFW", null), + .rgfw => raylib.defineCMacro("PLATFORM_DESKTOP_RGFW", null), + .sdl => raylib.defineCMacro("PLATFORM_DESKTOP_SDL", null), + else => {}, + } +} + +fn createEmsdkStep(b: *std.Build, emsdk: *std.Build.Dependency) *std.Build.Step.Run { + if (builtin.os.tag == .windows) { + return b.addSystemCommand(&.{emsdk.path("emsdk.bat").getPath(b)}); + } else { + return b.addSystemCommand(&.{emsdk.path("emsdk").getPath(b)}); + } +} + +fn emSdkSetupStep(b: *std.Build, emsdk: *std.Build.Dependency) !?*std.Build.Step.Run { + const dot_emsc_path = emsdk.path(".emscripten").getPath(b); + const dot_emsc_exists = !std.meta.isError(std.fs.accessAbsolute(dot_emsc_path, .{})); + + if (!dot_emsc_exists) { + const emsdk_install = createEmsdkStep(b, emsdk); + emsdk_install.addArgs(&.{ "install", "latest" }); + const emsdk_activate = createEmsdkStep(b, emsdk); + emsdk_activate.addArgs(&.{ "activate", "latest" }); + emsdk_activate.step.dependOn(&emsdk_install.step); + return emsdk_activate; + } else { + return null; + } +} + +/// A list of all flags from `src/config.h` that one may override +const config_h_flags = outer: { + // Set this value higher if compile errors happen as `src/config.h` gets larger + @setEvalBranchQuota(1 << 20); + + const config_h = @embedFile("src/config.h"); + var flags: [std.mem.count(u8, config_h, "\n") + 1][]const u8 = undefined; + + var i = 0; + var lines = std.mem.tokenizeScalar(u8, config_h, '\n'); + while (lines.next()) |line| { + if (!std.mem.containsAtLeast(u8, line, 1, "SUPPORT")) continue; + if (std.mem.startsWith(u8, line, "//")) continue; + if (std.mem.startsWith(u8, line, "#if")) continue; + + var flag = std.mem.trimLeft(u8, line, " \t"); // Trim whitespace + flag = flag["#define ".len - 1 ..]; // Remove #define + flag = std.mem.trimLeft(u8, flag, " \t"); // Trim whitespace + flag = flag[0 .. std.mem.indexOf(u8, flag, " ") orelse continue]; // Flag is only one word, so capture till space + flag = "-D" ++ flag; // Prepend with -D + + flags[i] = flag; + i += 1; + } + + // Uncomment this to check what flags normally get passed + //@compileLog(flags[0..i].*); + break :outer flags[0..i].*; +}; + +fn compileRaylib(b: *std.Build, target: std.Build.ResolvedTarget, optimize: std.builtin.OptimizeMode, options: Options) !*std.Build.Step.Compile { + var raylib_flags_arr = std.ArrayList([]const u8).init(b.allocator); + defer raylib_flags_arr.deinit(); + + try raylib_flags_arr.appendSlice(&[_][]const u8{ + "-std=gnu99", + "-D_GNU_SOURCE", + "-DGL_SILENCE_DEPRECATION=199309L", + "-fno-sanitize=undefined", // https://github.com/raysan5/raylib/issues/3674 + }); + + if (options.shared) { + try raylib_flags_arr.appendSlice(&[_][]const u8{ + "-fPIC", + "-DBUILD_LIBTYPE_SHARED", + }); + } + + if (options.config.len > 0) { + // Sets a flag indiciating the use of a custom `config.h` + try raylib_flags_arr.append("-DEXTERNAL_CONFIG_FLAGS"); + + // Splits a space-separated list of config flags into multiple flags + // + // Note: This means certain flags like `-x c++` won't be processed properly. + // `-xc++` or similar should be used when possible + var config_iter = std.mem.tokenizeScalar(u8, options.config, ' '); + + // Apply config flags supplied by the user + while (config_iter.next()) |config_flag| + try raylib_flags_arr.append(config_flag); + + // Apply all relevant configs from `src/config.h` *except* the user-specified ones + // + // Note: Currently using a suboptimal `O(m*n)` time algorithm where: + // `m` corresponds roughly to the number of lines in `src/config.h` + // `n` corresponds to the number of user-specified flags + outer: for (config_h_flags) |flag| { + // If a user already specified the flag, skip it + config_iter.reset(); + while (config_iter.next()) |config_flag| { + // For a user-specified flag to match, it must share the same prefix and have the + // same length or be followed by an equals sign + if (!std.mem.startsWith(u8, config_flag, flag)) continue; + if (config_flag.len == flag.len or config_flag[flag.len] == '=') continue :outer; + } + + // Otherwise, append default value from config.h to compile flags + try raylib_flags_arr.append(flag); + } + } + + const raylib = if (options.shared) + b.addSharedLibrary(.{ + .name = "raylib", + .target = target, + .optimize = optimize, + }) + else + b.addStaticLibrary(.{ + .name = "raylib", + .target = target, + .optimize = optimize, + }); + raylib.linkLibC(); + + // No GLFW required on PLATFORM_DRM + if (options.platform != .drm) { + raylib.addIncludePath(b.path("src/external/glfw/include")); + } + + var c_source_files = try std.ArrayList([]const u8).initCapacity(b.allocator, 2); + c_source_files.appendSliceAssumeCapacity(&.{ "src/rcore.c", "src/utils.c" }); + + if (options.raudio) { + try c_source_files.append("src/raudio.c"); + } + if (options.rmodels) { + try c_source_files.append("src/rmodels.c"); + } + if (options.rshapes) { + try c_source_files.append("src/rshapes.c"); + } + if (options.rtext) { + try c_source_files.append("src/rtext.c"); + } + if (options.rtextures) { + try c_source_files.append("src/rtextures.c"); + } + + if (options.opengl_version != .auto) { + raylib.defineCMacro(options.opengl_version.toCMacroStr(), null); + } + + switch (target.result.os.tag) { + .windows => { + try c_source_files.append("src/rglfw.c"); + raylib.linkSystemLibrary("winmm"); + raylib.linkSystemLibrary("gdi32"); + raylib.linkSystemLibrary("opengl32"); + + setDesktopPlatform(raylib, options.platform); + }, + .linux => { + if (options.platform != .drm) { + try c_source_files.append("src/rglfw.c"); + + if (options.linux_display_backend == .X11 or options.linux_display_backend == .Both) { + raylib.defineCMacro("_GLFW_X11", null); + raylib.linkSystemLibrary("GLX"); + raylib.linkSystemLibrary("X11"); + raylib.linkSystemLibrary("Xcursor"); + raylib.linkSystemLibrary("Xext"); + raylib.linkSystemLibrary("Xfixes"); + raylib.linkSystemLibrary("Xi"); + raylib.linkSystemLibrary("Xinerama"); + raylib.linkSystemLibrary("Xrandr"); + raylib.linkSystemLibrary("Xrender"); + } + + if (options.linux_display_backend == .Wayland or options.linux_display_backend == .Both) { + _ = b.findProgram(&.{"wayland-scanner"}, &.{}) catch { + std.log.err( + \\ `wayland-scanner` may not be installed on the system. + \\ You can switch to X11 in your `build.zig` by changing `Options.linux_display_backend` + , .{}); + @panic("`wayland-scanner` not found"); + }; + raylib.defineCMacro("_GLFW_WAYLAND", null); + raylib.linkSystemLibrary("EGL"); + raylib.linkSystemLibrary("wayland-client"); + raylib.linkSystemLibrary("xkbcommon"); + waylandGenerate(b, raylib, "wayland.xml", "wayland-client-protocol"); + waylandGenerate(b, raylib, "xdg-shell.xml", "xdg-shell-client-protocol"); + waylandGenerate(b, raylib, "xdg-decoration-unstable-v1.xml", "xdg-decoration-unstable-v1-client-protocol"); + waylandGenerate(b, raylib, "viewporter.xml", "viewporter-client-protocol"); + waylandGenerate(b, raylib, "relative-pointer-unstable-v1.xml", "relative-pointer-unstable-v1-client-protocol"); + waylandGenerate(b, raylib, "pointer-constraints-unstable-v1.xml", "pointer-constraints-unstable-v1-client-protocol"); + waylandGenerate(b, raylib, "fractional-scale-v1.xml", "fractional-scale-v1-client-protocol"); + waylandGenerate(b, raylib, "xdg-activation-v1.xml", "xdg-activation-v1-client-protocol"); + waylandGenerate(b, raylib, "idle-inhibit-unstable-v1.xml", "idle-inhibit-unstable-v1-client-protocol"); + } + + setDesktopPlatform(raylib, options.platform); + } else { + if (options.opengl_version == .auto) { + raylib.linkSystemLibrary("GLESv2"); + raylib.defineCMacro("GRAPHICS_API_OPENGL_ES2", null); + } + + raylib.linkSystemLibrary("EGL"); + raylib.linkSystemLibrary("gbm"); + raylib.linkSystemLibrary2("libdrm", .{ .use_pkg_config = .force }); + + raylib.defineCMacro("PLATFORM_DRM", null); + raylib.defineCMacro("EGL_NO_X11", null); + raylib.defineCMacro("DEFAULT_BATCH_BUFFER_ELEMENT", "2048"); + } + }, + .freebsd, .openbsd, .netbsd, .dragonfly => { + try c_source_files.append("rglfw.c"); + raylib.linkSystemLibrary("GL"); + raylib.linkSystemLibrary("rt"); + raylib.linkSystemLibrary("dl"); + raylib.linkSystemLibrary("m"); + raylib.linkSystemLibrary("X11"); + raylib.linkSystemLibrary("Xrandr"); + raylib.linkSystemLibrary("Xinerama"); + raylib.linkSystemLibrary("Xi"); + raylib.linkSystemLibrary("Xxf86vm"); + raylib.linkSystemLibrary("Xcursor"); + + setDesktopPlatform(raylib, options.platform); + }, + .macos => { + // Include xcode_frameworks for cross compilation + if (b.lazyDependency("xcode_frameworks", .{})) |dep| { + raylib.addSystemFrameworkPath(dep.path("Frameworks")); + raylib.addSystemIncludePath(dep.path("include")); + raylib.addLibraryPath(dep.path("lib")); + } + + // On macos rglfw.c include Objective-C files. + try raylib_flags_arr.append("-ObjC"); + raylib.root_module.addCSourceFile(.{ + .file = b.path("src/rglfw.c"), + .flags = raylib_flags_arr.items, + }); + _ = raylib_flags_arr.pop(); + raylib.linkFramework("Foundation"); + raylib.linkFramework("CoreServices"); + raylib.linkFramework("CoreGraphics"); + raylib.linkFramework("AppKit"); + raylib.linkFramework("IOKit"); + + setDesktopPlatform(raylib, options.platform); + }, + .emscripten => { + // Include emscripten for cross compilation + if (b.lazyDependency("emsdk", .{})) |dep| { + if (try emSdkSetupStep(b, dep)) |emSdkStep| { + raylib.step.dependOn(&emSdkStep.step); + } + + raylib.addIncludePath(dep.path("upstream/emscripten/cache/sysroot/include")); + } + + raylib.defineCMacro("PLATFORM_WEB", null); + if (options.opengl_version == .auto) { + raylib.defineCMacro("GRAPHICS_API_OPENGL_ES2", null); + } + }, + else => { + @panic("Unsupported OS"); + }, + } + + raylib.root_module.addCSourceFiles(.{ + .files = c_source_files.items, + .flags = raylib_flags_arr.items, + }); + + return raylib; +} + +pub fn addRaygui(b: *std.Build, raylib: *std.Build.Step.Compile, raygui_dep: *std.Build.Dependency) void { + var gen_step = b.addWriteFiles(); + raylib.step.dependOn(&gen_step.step); + + const raygui_c_path = gen_step.add("raygui.c", "#define RAYGUI_IMPLEMENTATION\n#include \"raygui.h\"\n"); + raylib.addCSourceFile(.{ .file = raygui_c_path }); + raylib.addIncludePath(raygui_dep.path("src")); + + raylib.installHeader(raygui_dep.path("src/raygui.h"), "raygui.h"); +} + +pub const Options = struct { + raudio: bool = true, + rmodels: bool = true, + rshapes: bool = true, + rtext: bool = true, + rtextures: bool = true, + platform: PlatformBackend = .glfw, + shared: bool = false, + linux_display_backend: LinuxDisplayBackend = .Both, + opengl_version: OpenglVersion = .auto, + /// config should be a list of space-separated cflags, eg, "-DSUPPORT_CUSTOM_FRAME_CONTROL" + config: []const u8 = &.{}, + + const defaults = Options{}; + + fn getOptions(b: *std.Build) Options { + return .{ + .platform = b.option(PlatformBackend, "platform", "Choose the platform backedn for desktop target") orelse defaults.platform, + .raudio = b.option(bool, "raudio", "Compile with audio support") orelse defaults.raudio, + .rmodels = b.option(bool, "rmodels", "Compile with models support") orelse defaults.rmodels, + .rtext = b.option(bool, "rtext", "Compile with text support") orelse defaults.rtext, + .rtextures = b.option(bool, "rtextures", "Compile with textures support") orelse defaults.rtextures, + .rshapes = b.option(bool, "rshapes", "Compile with shapes support") orelse defaults.rshapes, + .shared = b.option(bool, "shared", "Compile as shared library") orelse defaults.shared, + .linux_display_backend = b.option(LinuxDisplayBackend, "linux_display_backend", "Linux display backend to use") orelse defaults.linux_display_backend, + .opengl_version = b.option(OpenglVersion, "opengl_version", "OpenGL version to use") orelse defaults.opengl_version, + .config = b.option([]const u8, "config", "Compile with custom define macros overriding config.h") orelse &.{}, + }; + } +}; + +pub const OpenglVersion = enum { + auto, + gl_1_1, + gl_2_1, + gl_3_3, + gl_4_3, + gles_2, + gles_3, + + pub fn toCMacroStr(self: @This()) []const u8 { + switch (self) { + .auto => @panic("OpenglVersion.auto cannot be turned into a C macro string"), + .gl_1_1 => return "GRAPHICS_API_OPENGL_11", + .gl_2_1 => return "GRAPHICS_API_OPENGL_21", + .gl_3_3 => return "GRAPHICS_API_OPENGL_33", + .gl_4_3 => return "GRAPHICS_API_OPENGL_43", + .gles_2 => return "GRAPHICS_API_OPENGL_ES2", + .gles_3 => return "GRAPHICS_API_OPENGL_ES3", + } + } +}; + +pub const LinuxDisplayBackend = enum { + X11, + Wayland, + Both, +}; + +pub const PlatformBackend = enum { + glfw, + rgfw, + sdl, + drm, +}; + +pub fn build(b: *std.Build) !void { + // Standard target options allows the person running `zig build` to choose + // what target to build for. Here we do not override the defaults, which + // means any target is allowed, and the default is native. Other options + // for restricting supported target set are available. + const target = b.standardTargetOptions(.{}); + // Standard optimization options allow the person running `zig build` to select + // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not + // set a preferred release mode, allowing the user to decide how to optimize. + const optimize = b.standardOptimizeOption(.{}); + + const lib = try compileRaylib(b, target, optimize, Options.getOptions(b)); + + lib.installHeader(b.path("src/raylib.h"), "raylib.h"); + lib.installHeader(b.path("src/raymath.h"), "raymath.h"); + lib.installHeader(b.path("src/rlgl.h"), "rlgl.h"); + + b.installArtifact(lib); +} + +fn waylandGenerate( + b: *std.Build, + raylib: *std.Build.Step.Compile, + comptime protocol: []const u8, + 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); +} -- cgit v1.2.3-70-g09d2