mach/gpu-dawn/build.zig
Stephen Gutekanst a2f65d5a23 gpu-dawn: error if curl is not installed, less verbose errors
Some Linux distro's (e.g. Ubuntu) ship with wget but not curl by default. It's possible
to run into this if you don't use it a lot, e.g. in WSL under Windows - so produce an error
if `curl` is not installed.

Additionally, if the binary download fails, don't throw an entire stack trace to stdout.

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
2022-03-27 12:53:37 -07:00

1495 lines
61 KiB
Zig

const std = @import("std");
const Builder = std.build.Builder;
const glfw = @import("libs/mach-glfw/build.zig");
const system_sdk = @import("libs/mach-glfw/system_sdk.zig");
pub fn build(b: *Builder) void {
const mode = b.standardReleaseOptions();
const target = b.standardTargetOptions(.{});
const options = Options{
.from_source = b.option(bool, "dawn-from-source", "Build Dawn from source") orelse false,
};
const lib = b.addStaticLibrary("gpu", "src/main.zig");
lib.setBuildMode(mode);
lib.setTarget(target);
lib.install();
link(b, lib, options);
const main_tests = b.addTest("src/main.zig");
main_tests.setBuildMode(mode);
const test_step = b.step("test", "Run library tests");
test_step.dependOn(&main_tests.step);
const dawn_example = b.addExecutable("dawn-example", "src/dawn/hello_triangle.zig");
dawn_example.setBuildMode(mode);
dawn_example.setTarget(target);
link(b, dawn_example, options);
glfw.link(b, dawn_example, .{ .system_sdk = .{ .set_sysroot = false } });
dawn_example.addPackagePath("glfw", "libs/mach-glfw/src/main.zig");
dawn_example.install();
const dawn_example_run_cmd = dawn_example.run();
dawn_example_run_cmd.step.dependOn(b.getInstallStep());
const dawn_example_run_step = b.step("run-dawn-example", "Run the dawn example");
dawn_example_run_step.dependOn(&dawn_example_run_cmd.step);
}
pub const LinuxWindowManager = enum {
X11,
Wayland,
};
pub const Options = struct {
/// Defaults to X11 on Linux.
linux_window_manager: ?LinuxWindowManager = null,
/// Defaults to true on Windows
d3d12: ?bool = null,
/// Defaults to true on Darwin
metal: ?bool = null,
/// Defaults to true on Linux, Fuchsia
// TODO(build-system): enable on Windows if we can cross compile Vulkan
vulkan: ?bool = null,
/// Defaults to true on Linux
desktop_gl: ?bool = null,
/// Defaults to true on Android, Linux, Windows, Emscripten
// TODO(build-system): not respected at all currently
opengl_es: ?bool = null,
/// Whether or not minimal debug symbols should be emitted. This is -g1 in most cases, enough to
/// produce stack traces but omitting debug symbols for locals. For spirv-tools and tint in
/// specific, -g0 will be used (no debug symbols at all) to save an additional ~39M.
///
/// When enabled, a debug build of the static library goes from ~947M to just ~53M.
minimal_debug_symbols: bool = true,
/// Whether or not to produce separate static libraries for each component of Dawn (reduces
/// iteration times when building from source / testing changes to Dawn source code.)
separate_libs: bool = false,
/// Whether to build Dawn from source or not.
from_source: bool = false,
/// The binary release version to use from https://github.com/hexops/mach-gpu-dawn/releases
binary_version: []const u8 = "release-5fe08ee",
/// Detects the default options to use for the given target.
pub fn detectDefaults(self: Options, target: std.Target) Options {
const tag = target.os.tag;
const linux_desktop_like = isLinuxDesktopLike(target);
var options = self;
if (options.linux_window_manager == null and linux_desktop_like) options.linux_window_manager = .X11;
if (options.d3d12 == null) options.d3d12 = tag == .windows;
if (options.metal == null) options.metal = tag.isDarwin();
if (options.vulkan == null) options.vulkan = tag == .fuchsia or linux_desktop_like;
// TODO(build-system): technically Dawn itself defaults desktop_gl to true on Windows.
if (options.desktop_gl == null) options.desktop_gl = linux_desktop_like;
options.opengl_es = false; // TODO(build-system): OpenGL ES
// if (options.opengl_es == null) options.opengl_es = tag == .windows or tag == .emscripten or target.isAndroid() or linux_desktop_like;
return options;
}
pub fn appendFlags(self: Options, flags: *std.ArrayList([]const u8), zero_debug_symbols: bool, is_cpp: bool) !void {
if (self.minimal_debug_symbols) {
if (zero_debug_symbols) try flags.append("-g0") else try flags.append("-g1");
}
if (is_cpp) try flags.append("-std=c++17");
if (self.linux_window_manager != null and self.linux_window_manager.? == .X11) try flags.append("-DDAWN_USE_X11");
}
};
pub fn link(b: *Builder, step: *std.build.LibExeObjStep, options: Options) void {
const target = (std.zig.system.NativeTargetInfo.detect(b.allocator, step.target) catch unreachable).target;
const opt = options.detectDefaults(target);
if (options.from_source) linkFromSource(b, step, opt) else linkFromBinary(b, step, opt);
}
fn linkFromSource(b: *Builder, step: *std.build.LibExeObjStep, options: Options) void {
ensureSubmodules(b.allocator) catch |err| @panic(@errorName(err));
step.addIncludeDir(thisDir() ++ "/libs/dawn/out/Debug/gen/include");
step.addIncludeDir(thisDir() ++ "/libs/dawn/include");
step.addIncludeDir(thisDir() ++ "/src/dawn");
if (options.separate_libs) {
const lib_mach_dawn_native = buildLibMachDawnNative(b, step, options);
step.linkLibrary(lib_mach_dawn_native);
const lib_dawn_common = buildLibDawnCommon(b, step, options);
step.linkLibrary(lib_dawn_common);
const lib_dawn_platform = buildLibDawnPlatform(b, step, options);
step.linkLibrary(lib_dawn_platform);
// dawn-native
const lib_abseil_cpp = buildLibAbseilCpp(b, step, options);
step.linkLibrary(lib_abseil_cpp);
const lib_dawn_native = buildLibDawnNative(b, step, options);
step.linkLibrary(lib_dawn_native);
if (options.d3d12.?) {
const lib_dxcompiler = buildLibDxcompiler(b, step, options);
step.linkLibrary(lib_dxcompiler);
}
const lib_dawn_wire = buildLibDawnWire(b, step, options);
step.linkLibrary(lib_dawn_wire);
const lib_dawn_utils = buildLibDawnUtils(b, step, options);
step.linkLibrary(lib_dawn_utils);
const lib_spirv_tools = buildLibSPIRVTools(b, step, options);
step.linkLibrary(lib_spirv_tools);
const lib_tint = buildLibTint(b, step, options);
step.linkLibrary(lib_tint);
return;
}
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const lib_dawn = b.addStaticLibrary("dawn", main_abs);
lib_dawn.install();
lib_dawn.setBuildMode(step.build_mode);
lib_dawn.setTarget(step.target);
lib_dawn.linkLibCpp();
step.linkLibrary(lib_dawn);
_ = buildLibMachDawnNative(b, lib_dawn, options);
_ = buildLibDawnCommon(b, lib_dawn, options);
_ = buildLibDawnPlatform(b, lib_dawn, options);
_ = buildLibAbseilCpp(b, lib_dawn, options);
_ = buildLibDawnNative(b, lib_dawn, options);
_ = buildLibDawnWire(b, lib_dawn, options);
_ = buildLibDawnUtils(b, lib_dawn, options);
_ = buildLibSPIRVTools(b, lib_dawn, options);
_ = buildLibTint(b, lib_dawn, options);
if (options.d3d12.?) _ = buildLibDxcompiler(b, lib_dawn, options);
}
fn ensureSubmodules(allocator: std.mem.Allocator) !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", "--recursive" }, allocator);
child.cwd = thisDir();
child.stderr = std.io.getStdErr();
child.stdout = std.io.getStdOut();
_ = try child.spawnAndWait();
}
pub fn linkFromBinary(b: *Builder, step: *std.build.LibExeObjStep, options: Options) void {
const target = (std.zig.system.NativeTargetInfo.detect(b.allocator, step.target) catch unreachable).target;
const binaries_available = switch (target.os.tag) {
.windows => target.abi.isGnu(),
.linux => target.cpu.arch.isX86() and (target.abi.isGnu() or target.abi.isMusl()),
.macos => blk: {
if (!target.cpu.arch.isX86() and !target.cpu.arch.isAARCH64()) break :blk false;
if (!target.abi.isGnu()) break :blk false;
// If min. target macOS version is lesser than the min version we have available, then
// our binary is incompatible with the target.
const min_available = std.builtin.Version{ .major = 12, .minor = 0 };
if (target.os.version_range.semver.min.order(min_available) == .lt) break :blk false;
break :blk true;
},
else => false,
};
if (!binaries_available) {
const zig_triple = target.zigTriple(b.allocator) catch unreachable;
std.log.err("gpu-dawn binaries for {s} not available.", .{zig_triple});
std.log.err("-> open an issue: https://github.com/hexops/mach/issues", .{});
std.log.err("-> build from source (takes 5-15 minutes):", .{});
std.log.err(" use -Ddawn-from-source=true or set `Options.from_source = true`\n", .{});
if (target.os.tag == .macos) {
std.log.err("", .{});
if (target.cpu.arch.isX86()) std.log.err("-> Did you mean to use -Dtarget=x86_64-macos.12 ?", .{});
if (target.cpu.arch.isAARCH64()) std.log.err("-> Did you mean to use -Dtarget=aarch64-macos.12 ?", .{});
}
std.process.exit(1);
}
// Remove OS version range / glibc version from triple (we do not include that in our download
// URLs.)
var binary_target = std.zig.CrossTarget.fromTarget(target);
binary_target.os_version_min = .{ .none = .{} };
binary_target.os_version_max = .{ .none = .{} };
binary_target.glibc_version = null;
const zig_triple = binary_target.zigTriple(b.allocator) catch unreachable;
ensureBinaryDownloaded(b.allocator, zig_triple, b.is_release, target.os.tag == .windows, options.binary_version);
const base_cache_dir_rel = std.fs.path.join(b.allocator, &.{ "zig-cache", "mach", "gpu-dawn" }) catch unreachable;
std.fs.cwd().makePath(base_cache_dir_rel) catch unreachable;
const base_cache_dir = std.fs.cwd().realpathAlloc(b.allocator, base_cache_dir_rel) catch unreachable;
const commit_cache_dir = std.fs.path.join(b.allocator, &.{ base_cache_dir, options.binary_version }) catch unreachable;
const release_tag = if (b.is_release) "release-fast" else "debug";
const target_cache_dir = std.fs.path.join(b.allocator, &.{ commit_cache_dir, zig_triple, release_tag }) catch unreachable;
const include_dir = std.fs.path.join(b.allocator, &.{ commit_cache_dir, "include" }) catch unreachable;
step.addLibraryPath(target_cache_dir);
step.linkSystemLibrary("dawn");
step.linkLibCpp();
step.addIncludeDir(include_dir);
step.addIncludeDir(thisDir() ++ "/src/dawn");
if (options.linux_window_manager != null and options.linux_window_manager.? == .X11) {
step.linkSystemLibrary("X11");
}
if (options.metal.?) {
step.linkFramework("Metal");
step.linkFramework("CoreGraphics");
step.linkFramework("Foundation");
step.linkFramework("IOKit");
step.linkFramework("IOSurface");
step.linkFramework("QuartzCore");
}
if (options.d3d12.?) {
step.linkSystemLibrary("ole32");
step.linkSystemLibrary("dxguid");
}
}
pub fn ensureBinaryDownloaded(
allocator: std.mem.Allocator,
zig_triple: []const u8,
is_release: bool,
is_windows: bool,
version: []const u8,
) void {
// If zig-cache/mach/gpu-dawn/<git revision> does not exist:
// If on a commit in the main branch => rm -r zig-cache/mach/gpu-dawn/
// else => noop
// If zig-cache/mach/gpu-dawn/<git revision>/<target> exists:
// noop
// else:
// Download archive to zig-cache/mach/gpu-dawn/download/macos-aarch64
// Extract to zig-cache/mach/gpu-dawn/<git revision>/macos-aarch64/libgpu.a
// Remove zig-cache/mach/gpu-dawn/download
const base_cache_dir_rel = std.fs.path.join(allocator, &.{ "zig-cache", "mach", "gpu-dawn" }) catch unreachable;
std.fs.cwd().makePath(base_cache_dir_rel) catch unreachable;
const base_cache_dir = std.fs.cwd().realpathAlloc(allocator, base_cache_dir_rel) catch unreachable;
const commit_cache_dir = std.fs.path.join(allocator, &.{ base_cache_dir, version }) catch unreachable;
if (!dirExists(commit_cache_dir)) {
// Commit cache dir does not exist. If the commit we're on is in the main branch, we're
// probably moving to a newer commit and so we should cleanup older cached binaries.
const current_git_commit = getCurrentGitCommit(allocator) catch unreachable;
if (gitBranchContainsCommit(allocator, "main", current_git_commit) catch false) {
std.fs.deleteTreeAbsolute(base_cache_dir) catch {};
}
}
const release_tag = if (is_release) "release-fast" else "debug";
const target_cache_dir = std.fs.path.join(allocator, &.{ commit_cache_dir, zig_triple, release_tag }) catch unreachable;
if (dirExists(target_cache_dir)) {
return; // nothing to do, already have the binary
}
downloadBinary(allocator, commit_cache_dir, release_tag, target_cache_dir, zig_triple, is_windows, version) catch |err| {
// A download failed, or extraction failed, so wipe out the directory to ensure we correctly
// try again next time.
std.fs.deleteTreeAbsolute(base_cache_dir) catch {};
std.log.err("mach/gpu-dawn: prebuilt binary download failed: {s}", .{@errorName(err)});
std.process.exit(1);
};
}
fn downloadBinary(
allocator: std.mem.Allocator,
commit_cache_dir: []const u8,
release_tag: []const u8,
target_cache_dir: []const u8,
zig_triple: []const u8,
is_windows: bool,
version: []const u8,
) !void {
try ensureCanDownloadFiles(allocator);
const download_dir = try std.fs.path.join(allocator, &.{ target_cache_dir, "download" });
try std.fs.cwd().makePath(download_dir);
// Replace "..." with "---" because GitHub releases has very weird restrictions on file names.
// https://twitter.com/slimsag/status/1498025997987315713
const github_triple = try std.mem.replaceOwned(u8, allocator, zig_triple, "...", "---");
// Compose the download URL, e.g.:
// https://github.com/hexops/mach-gpu-dawn/releases/download/release-6b59025/libdawn_x86_64-macos-gnu_debug.a.gz
const lib_prefix = if (is_windows) "dawn_" else "libdawn_";
const lib_ext = if (is_windows) ".lib" else ".a";
const lib_file_name = if (is_windows) "dawn.lib" else "libdawn.a";
const download_url = try std.mem.concat(allocator, u8, &.{
"https://github.com/hexops/mach-gpu-dawn/releases/download/",
version,
"/",
lib_prefix,
github_triple,
"_",
release_tag,
lib_ext,
".gz",
});
// Download and decompress libdawn
const gz_target_file = try std.fs.path.join(allocator, &.{ download_dir, "compressed.gz" });
try downloadFile(allocator, gz_target_file, download_url);
const target_file = try std.fs.path.join(allocator, &.{ target_cache_dir, lib_file_name });
try gzipDecompress(allocator, gz_target_file, target_file);
// If we don't yet have the headers (these are shared across architectures), download them.
const include_dir = try std.fs.path.join(allocator, &.{ commit_cache_dir, "include" });
if (!dirExists(include_dir)) {
// Compose the headers download URL, e.g.:
// https://github.com/hexops/mach-gpu-dawn/releases/download/release-6b59025/headers.json.gz
const headers_download_url = try std.mem.concat(allocator, u8, &.{
"https://github.com/hexops/mach-gpu-dawn/releases/download/",
version,
"/headers.json.gz",
});
// Download and decompress headers.json.gz
const headers_gz_target_file = try std.fs.path.join(allocator, &.{ download_dir, "headers.json.gz" });
try downloadFile(allocator, headers_gz_target_file, headers_download_url);
const headers_target_file = try std.fs.path.join(allocator, &.{ target_cache_dir, "headers.json" });
try gzipDecompress(allocator, headers_gz_target_file, headers_target_file);
// Extract headers JSON archive.
try extractHeaders(allocator, headers_target_file, commit_cache_dir);
}
try std.fs.deleteTreeAbsolute(download_dir);
}
fn extractHeaders(allocator: std.mem.Allocator, json_file: []const u8, out_dir: []const u8) !void {
const contents = try std.fs.cwd().readFileAlloc(allocator, json_file, std.math.maxInt(usize));
var parser = std.json.Parser.init(allocator, false);
defer parser.deinit();
var tree = try parser.parse(contents);
defer tree.deinit();
var iter = tree.root.Object.iterator();
while (iter.next()) |f| {
const out_path = try std.fs.path.join(allocator, &.{ out_dir, f.key_ptr.* });
try std.fs.cwd().makePath(std.fs.path.dirname(out_path).?);
var new_file = try std.fs.createFileAbsolute(out_path, .{});
defer new_file.close();
try new_file.writeAll(f.value_ptr.*.String);
}
}
fn dirExists(path: []const u8) bool {
var dir = std.fs.openDirAbsolute(path, .{}) catch return false;
dir.close();
return true;
}
fn gzipDecompress(allocator: std.mem.Allocator, src_absolute_path: []const u8, dst_absolute_path: []const u8) !void {
var file = try std.fs.openFileAbsolute(src_absolute_path, .{ .mode = .read_only });
defer file.close();
var gzip_stream = try std.compress.gzip.gzipStream(allocator, file.reader());
defer gzip_stream.deinit();
// Read and decompress the whole file
const buf = try gzip_stream.reader().readAllAlloc(allocator, std.math.maxInt(usize));
defer allocator.free(buf);
var new_file = try std.fs.createFileAbsolute(dst_absolute_path, .{});
defer new_file.close();
try new_file.writeAll(buf);
}
fn gitBranchContainsCommit(allocator: std.mem.Allocator, branch: []const u8, commit: []const u8) !bool {
const result = try std.ChildProcess.exec(.{
.allocator = allocator,
.argv = &.{ "git", "branch", branch, "--contains", commit },
.cwd = thisDir(),
});
return result.term.Exited == 0;
}
fn getCurrentGitCommit(allocator: std.mem.Allocator) ![]const u8 {
const result = try std.ChildProcess.exec(.{
.allocator = allocator,
.argv = &.{ "git", "rev-parse", "HEAD" },
.cwd = thisDir(),
});
if (result.stdout.len > 0) return result.stdout[0 .. result.stdout.len - 1]; // trim newline
return result.stdout;
}
fn gitClone(allocator: std.mem.Allocator, repository: []const u8, dir: []const u8) !bool {
const result = try std.ChildProcess.exec(.{
.allocator = allocator,
.argv = &.{ "git", "clone", repository, dir },
.cwd = thisDir(),
});
return result.term.Exited == 0;
}
fn downloadFile(allocator: std.mem.Allocator, target_file: []const u8, url: []const u8) !void {
std.debug.print("downloading {s}..\n", .{url});
const child = try std.ChildProcess.init(&.{ "curl", "-L", "-o", target_file, url }, allocator);
child.cwd = thisDir();
child.stderr = std.io.getStdErr();
child.stdout = std.io.getStdOut();
_ = try child.spawnAndWait();
}
fn ensureCanDownloadFiles(allocator: std.mem.Allocator) !void {
const argv = &[_][]const u8{ "curl", "--version" };
const result = try std.ChildProcess.exec(.{
.allocator = allocator,
.argv = argv,
.cwd = thisDir(),
});
defer {
allocator.free(result.stderr);
allocator.free(result.stdout);
}
if (result.term.Exited != 0) {
std.log.err("mach: error: 'curl --version' failed. Is curl not installed?", .{});
std.process.exit(1);
}
}
fn isLinuxDesktopLike(target: std.Target) bool {
const tag = target.os.tag;
return !tag.isDarwin() and tag != .windows and tag != .fuchsia and tag != .emscripten and !target.isAndroid();
}
fn buildLibMachDawnNative(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("dawn-native-mach", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
// TODO(build-system): pass system SDK options through
glfw.link(b, lib, .{ .system_sdk = .{ .set_sysroot = false } });
var cpp_flags = std.ArrayList([]const u8).init(b.allocator);
options.appendFlags(&cpp_flags, false, true) catch unreachable;
appendDawnEnableBackendTypeFlags(&cpp_flags, options) catch unreachable;
cpp_flags.appendSlice(&.{
include("libs/mach-glfw/upstream/glfw/include"),
include("libs/dawn/out/Debug/gen/include"),
include("libs/dawn/out/Debug/gen/src"),
include("libs/dawn/include"),
include("libs/dawn/src"),
}) catch unreachable;
const target = (std.zig.system.NativeTargetInfo.detect(b.allocator, step.target) catch unreachable).target;
if (target.os.tag == .windows) {
cpp_flags.appendSlice(&.{
"-D_DEBUG",
"-D_MT",
"-D_DLL",
}) catch unreachable;
}
lib.addCSourceFile("src/dawn/dawn_native_mach.cpp", cpp_flags.items);
return lib;
}
// Builds common sources; derived from src/common/BUILD.gn
fn buildLibDawnCommon(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("dawn-common", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
var flags = std.ArrayList([]const u8).init(b.allocator);
flags.append(include("libs/dawn/src")) catch unreachable;
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{"libs/dawn/src/dawn/common/"},
.flags = flags.items,
.excluding_contains = &.{
"test",
"benchmark",
"mock",
"WindowsUtils.cpp",
},
}) catch unreachable;
var cpp_sources = std.ArrayList([]const u8).init(b.allocator);
const target = (std.zig.system.NativeTargetInfo.detect(b.allocator, step.target) catch unreachable).target;
if (target.os.tag == .macos) {
// TODO(build-system): pass system SDK options through
system_sdk.include(b, lib, .{});
lib.linkFramework("Foundation");
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn/src/dawn/common/SystemUtils_mac.mm" }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
if (target.os.tag == .windows) {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn/src/dawn/common/WindowsUtils.cpp" }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
var cpp_flags = std.ArrayList([]const u8).init(b.allocator);
cpp_flags.appendSlice(flags.items) catch unreachable;
options.appendFlags(&cpp_flags, false, true) catch unreachable;
lib.addCSourceFiles(cpp_sources.items, cpp_flags.items);
return lib;
}
// Build dawn platform sources; derived from src/dawn/platform/BUILD.gn
fn buildLibDawnPlatform(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("dawn-platform", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
var cpp_flags = std.ArrayList([]const u8).init(b.allocator);
options.appendFlags(&cpp_flags, false, true) catch unreachable;
cpp_flags.appendSlice(&.{
include("libs/dawn/src"),
include("libs/dawn/include"),
include("libs/dawn/out/Debug/gen/include"),
}) catch unreachable;
var cpp_sources = std.ArrayList([]const u8).init(b.allocator);
for ([_][]const u8{
"src/dawn/platform/DawnPlatform.cpp",
"src/dawn/platform/WorkerThread.cpp",
"src/dawn/platform/tracing/EventTracer.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
lib.addCSourceFiles(cpp_sources.items, cpp_flags.items);
return lib;
}
fn appendDawnEnableBackendTypeFlags(flags: *std.ArrayList([]const u8), options: Options) !void {
const d3d12 = "-DDAWN_ENABLE_BACKEND_D3D12";
const metal = "-DDAWN_ENABLE_BACKEND_METAL";
const vulkan = "-DDAWN_ENABLE_BACKEND_VULKAN";
const opengl = "-DDAWN_ENABLE_BACKEND_OPENGL";
const desktop_gl = "-DDAWN_ENABLE_BACKEND_DESKTOP_GL";
const opengl_es = "-DDAWN_ENABLE_BACKEND_OPENGLES";
const backend_null = "-DDAWN_ENABLE_BACKEND_NULL";
try flags.append(backend_null);
if (options.d3d12.?) try flags.append(d3d12);
if (options.metal.?) try flags.append(metal);
if (options.vulkan.?) try flags.append(vulkan);
if (options.desktop_gl.?) try flags.appendSlice(&.{ opengl, desktop_gl });
if (options.opengl_es.?) try flags.appendSlice(&.{ opengl, opengl_es });
}
const dawn_d3d12_flags = &[_][]const u8{
"-DDAWN_NO_WINDOWS_UI",
"-D__EMULATE_UUID=1",
"-Wno-nonportable-include-path",
"-Wno-extern-c-compat",
"-Wno-invalid-noreturn",
"-Wno-pragma-pack",
"-Wno-microsoft-template-shadow",
"-Wno-unused-command-line-argument",
"-Wno-microsoft-exception-spec",
"-Wno-implicit-exception-spec-mismatch",
"-Wno-unknown-attributes",
"-Wno-c++20-extensions",
"-D_CRT_SECURE_NO_WARNINGS",
"-DWIN32_LEAN_AND_MEAN",
"-DD3D10_ARBITRARY_HEADER_ORDERING",
"-DNOMINMAX",
};
// Builds dawn native sources; derived from src/dawn/native/BUILD.gn
fn buildLibDawnNative(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("dawn-native", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
system_sdk.include(b, lib, .{});
var flags = std.ArrayList([]const u8).init(b.allocator);
appendDawnEnableBackendTypeFlags(&flags, options) catch unreachable;
flags.appendSlice(&.{
include("libs/dawn"),
include("libs/dawn/src"),
include("libs/dawn/include"),
include("libs/dawn/third_party/vulkan-deps/spirv-tools/src/include"),
include("libs/dawn/third_party/abseil-cpp"),
include("libs/dawn/third_party/khronos"),
// TODO(build-system): make these optional
"-DTINT_BUILD_SPV_READER=1",
"-DTINT_BUILD_SPV_WRITER=1",
"-DTINT_BUILD_WGSL_READER=1",
"-DTINT_BUILD_WGSL_WRITER=1",
"-DTINT_BUILD_MSL_WRITER=1",
"-DTINT_BUILD_HLSL_WRITER=1",
"-DTINT_BUILD_GLSL_WRITER=1",
include("libs/dawn/third_party/tint"),
include("libs/dawn/third_party/tint/include"),
include("libs/dawn/out/Debug/gen/include"),
include("libs/dawn/out/Debug/gen/src"),
}) catch unreachable;
if (options.d3d12.?) flags.appendSlice(dawn_d3d12_flags) catch unreachable;
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/out/Debug/gen/src/dawn/",
"libs/dawn/src/dawn/native/",
"libs/dawn/src/dawn/native/utils/",
},
.flags = flags.items,
.excluding_contains = &.{
"test",
"benchmark",
"mock",
"SpirvValidation.cpp",
"XlibXcbFunctions.cpp",
},
}) catch unreachable;
// dawn_native_gen
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/out/Debug/gen/src/dawn/native/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark", "mock" },
}) catch unreachable;
// TODO(build-system): could allow enable_vulkan_validation_layers here. See src/dawn/native/BUILD.gn
// TODO(build-system): allow use_angle here. See src/dawn/native/BUILD.gn
// TODO(build-system): could allow use_swiftshader here. See src/dawn/native/BUILD.gn
var cpp_sources = std.ArrayList([]const u8).init(b.allocator);
if (options.d3d12.?) {
lib.linkSystemLibrary("dxgi");
lib.linkSystemLibrary("dxguid");
for ([_][]const u8{
"src/dawn/mingw_helpers.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/src/dawn/native/d3d12/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark", "mock" },
}) catch unreachable;
}
if (options.metal.?) {
lib.linkFramework("Metal");
lib.linkFramework("CoreGraphics");
lib.linkFramework("Foundation");
lib.linkFramework("IOKit");
lib.linkFramework("IOSurface");
lib.linkFramework("QuartzCore");
appendLangScannedSources(b, lib, options, .{
.objc = true,
.rel_dirs = &.{
"libs/dawn/src/dawn/native/metal/",
"libs/dawn/src/dawn/native/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark", "mock" },
}) catch unreachable;
}
if (options.linux_window_manager != null and options.linux_window_manager.? == .X11) {
lib.linkSystemLibrary("X11");
for ([_][]const u8{
"src/dawn/native/XlibXcbFunctions.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
}
for ([_][]const u8{
"src/dawn/native/null/DeviceNull.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
if (options.desktop_gl.? or options.vulkan.?) {
for ([_][]const u8{
"src/dawn/native/SpirvValidation.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
}
if (options.desktop_gl.?) {
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/out/Debug/gen/src/dawn/native/opengl/",
"libs/dawn/src/dawn/native/opengl/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark", "mock" },
}) catch unreachable;
}
const target = (std.zig.system.NativeTargetInfo.detect(b.allocator, step.target) catch unreachable).target;
if (options.vulkan.?) {
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/src/dawn/native/vulkan/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark", "mock" },
}) catch unreachable;
if (isLinuxDesktopLike(target)) {
for ([_][]const u8{
"src/dawn/native/vulkan/external_memory/MemoryServiceOpaqueFD.cpp",
"src/dawn/native/vulkan/external_semaphore/SemaphoreServiceFD.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
} else if (target.os.tag == .fuchsia) {
for ([_][]const u8{
"src/dawn/native/vulkan/external_memory/MemoryServiceZirconHandle.cpp",
"src/dawn/native/vulkan/external_semaphore/SemaphoreServiceZirconHandle.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
} else {
for ([_][]const u8{
"src/dawn/native/vulkan/external_memory/MemoryServiceNull.cpp",
"src/dawn/native/vulkan/external_semaphore/SemaphoreServiceNull.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
}
}
// TODO(build-system): fuchsia: add is_fuchsia here from upstream source file
if (options.vulkan.?) {
// TODO(build-system): vulkan
// if (enable_vulkan_validation_layers) {
// defines += [
// "DAWN_ENABLE_VULKAN_VALIDATION_LAYERS",
// "DAWN_VK_DATA_DIR=\"$vulkan_data_subdir\"",
// ]
// }
// if (enable_vulkan_loader) {
// data_deps += [ "${dawn_vulkan_loader_dir}:libvulkan" ]
// defines += [ "DAWN_ENABLE_VULKAN_LOADER" ]
// }
}
// TODO(build-system): swiftshader
// if (use_swiftshader) {
// data_deps += [
// "${dawn_swiftshader_dir}/src/Vulkan:icd_file",
// "${dawn_swiftshader_dir}/src/Vulkan:swiftshader_libvulkan",
// ]
// defines += [
// "DAWN_ENABLE_SWIFTSHADER",
// "DAWN_SWIFTSHADER_VK_ICD_JSON=\"${swiftshader_icd_file_name}\"",
// ]
// }
// }
if (options.opengl_es.?) {
// TODO(build-system): gles
// if (use_angle) {
// data_deps += [
// "${dawn_angle_dir}:libEGL",
// "${dawn_angle_dir}:libGLESv2",
// ]
// }
// }
}
for ([_][]const u8{
"src/dawn/native/null/NullBackend.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
if (options.d3d12.?) {
for ([_][]const u8{
"src/dawn/native/d3d12/D3D12Backend.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
}
if (options.desktop_gl.?) {
for ([_][]const u8{
"src/dawn/native/opengl/OpenGLBackend.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
}
if (options.vulkan.?) {
for ([_][]const u8{
"src/dawn/native/vulkan/VulkanBackend.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
// TODO(build-system): vulkan
// if (enable_vulkan_validation_layers) {
// data_deps =
// [ "${dawn_vulkan_validation_layers_dir}:vulkan_validation_layers" ]
// if (!is_android) {
// data_deps +=
// [ "${dawn_vulkan_validation_layers_dir}:vulkan_gen_json_files" ]
// }
// }
}
var cpp_flags = std.ArrayList([]const u8).init(b.allocator);
cpp_flags.appendSlice(flags.items) catch unreachable;
options.appendFlags(&cpp_flags, false, true) catch unreachable;
lib.addCSourceFiles(cpp_sources.items, cpp_flags.items);
return lib;
}
// Builds third party tint sources; derived from third_party/tint/src/tint/BUILD.gn
fn buildLibTint(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("tint", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
var flags = std.ArrayList([]const u8).init(b.allocator);
flags.appendSlice(&.{
// TODO(build-system): make these optional
"-DTINT_BUILD_SPV_READER=1",
"-DTINT_BUILD_SPV_WRITER=1",
"-DTINT_BUILD_WGSL_READER=1",
"-DTINT_BUILD_WGSL_WRITER=1",
"-DTINT_BUILD_MSL_WRITER=1",
"-DTINT_BUILD_HLSL_WRITER=1",
"-DTINT_BUILD_GLSL_WRITER=1",
include("libs/dawn"),
include("libs/dawn/third_party/tint"),
include("libs/dawn/third_party/tint/include"),
// Required for TINT_BUILD_SPV_READER=1 and TINT_BUILD_SPV_WRITER=1, if specified
include("libs/dawn/third_party/vulkan-deps"),
include("libs/dawn/third_party/vulkan-deps/spirv-tools/src"),
include("libs/dawn/third_party/vulkan-deps/spirv-tools/src/include"),
include("libs/dawn/third_party/vulkan-deps/spirv-headers/src/include"),
include("libs/dawn/out/Debug/gen/third_party/vulkan-deps/spirv-tools/src"),
include("libs/dawn/out/Debug/gen/third_party/vulkan-deps/spirv-tools/src/include"),
}) catch unreachable;
// libtint_core_all_src
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/tint/src/tint/ast/",
"libs/dawn/third_party/tint/src/tint/",
"libs/dawn/third_party/tint/src/tint/diagnostic/",
"libs/dawn/third_party/tint/src/tint/inspector/",
"libs/dawn/third_party/tint/src/tint/reader/",
"libs/dawn/third_party/tint/src/tint/resolver/",
"libs/dawn/third_party/tint/src/tint/utils",
"libs/dawn/third_party/tint/src/tint/text/",
"libs/dawn/third_party/tint/src/tint/transform/",
"libs/dawn/third_party/tint/src/tint/transform/utils",
"libs/dawn/third_party/tint/src/tint/writer/",
"libs/dawn/third_party/tint/src/tint/ast/",
"libs/dawn/third_party/tint/src/tint/val/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "bench", "printer_windows", "printer_linux", "printer_other", "glsl.cc" },
}) catch unreachable;
var cpp_sources = std.ArrayList([]const u8).init(b.allocator);
const target = (std.zig.system.NativeTargetInfo.detect(b.allocator, step.target) catch unreachable).target;
switch (target.os.tag) {
.windows => cpp_sources.append(thisDir() ++ "/libs/dawn/third_party/tint/src/tint/diagnostic/printer_windows.cc") catch unreachable,
.linux => cpp_sources.append(thisDir() ++ "/libs/dawn/third_party/tint/src/tint/diagnostic/printer_linux.cc") catch unreachable,
else => cpp_sources.append(thisDir() ++ "/libs/dawn/third_party/tint/src/tint/diagnostic/printer_other.cc") catch unreachable,
}
// libtint_sem_src
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/tint/src/tint/sem/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark" },
}) catch unreachable;
// libtint_spv_reader_src
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/tint/src/tint/reader/spirv/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark" },
}) catch unreachable;
// libtint_spv_writer_src
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/tint/src/tint/writer/spirv/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "bench" },
}) catch unreachable;
// TODO(build-system): make optional
// libtint_wgsl_reader_src
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/tint/src/tint/reader/wgsl/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "bench" },
}) catch unreachable;
// TODO(build-system): make optional
// libtint_wgsl_writer_src
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/tint/src/tint/writer/wgsl/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "bench" },
}) catch unreachable;
// TODO(build-system): make optional
// libtint_msl_writer_src
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/tint/src/tint/writer/msl/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "bench" },
}) catch unreachable;
// TODO(build-system): make optional
// libtint_hlsl_writer_src
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/tint/src/tint/writer/hlsl/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "bench" },
}) catch unreachable;
// TODO(build-system): make optional
// libtint_glsl_writer_src
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/tint/src/tint/writer/glsl/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "bench" },
}) catch unreachable;
for ([_][]const u8{
"third_party/tint/src/tint/transform/glsl.cc",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
var cpp_flags = std.ArrayList([]const u8).init(b.allocator);
cpp_flags.appendSlice(flags.items) catch unreachable;
options.appendFlags(&cpp_flags, false, true) catch unreachable;
lib.addCSourceFiles(cpp_sources.items, cpp_flags.items);
return lib;
}
// Builds third_party/vulkan-deps/spirv-tools sources; derived from third_party/vulkan-deps/spirv-tools/src/BUILD.gn
fn buildLibSPIRVTools(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("spirv-tools", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
var flags = std.ArrayList([]const u8).init(b.allocator);
flags.appendSlice(&.{
include("libs/dawn"),
include("libs/dawn/third_party/vulkan-deps/spirv-tools/src"),
include("libs/dawn/third_party/vulkan-deps/spirv-tools/src/include"),
include("libs/dawn/third_party/vulkan-deps/spirv-headers/src/include"),
include("libs/dawn/out/Debug/gen/third_party/vulkan-deps/spirv-tools/src"),
include("libs/dawn/out/Debug/gen/third_party/vulkan-deps/spirv-tools/src/include"),
include("libs/dawn/third_party/vulkan-deps/spirv-headers/src/include/spirv/unified1"),
}) catch unreachable;
// spvtools
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/vulkan-deps/spirv-tools/src/source/",
"libs/dawn/third_party/vulkan-deps/spirv-tools/src/source/util/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark" },
}) catch unreachable;
// spvtools_val
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/vulkan-deps/spirv-tools/src/source/val/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark" },
}) catch unreachable;
// spvtools_opt
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/vulkan-deps/spirv-tools/src/source/opt/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark" },
}) catch unreachable;
// spvtools_link
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/vulkan-deps/spirv-tools/src/source/link/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark" },
}) catch unreachable;
return lib;
}
// Builds third_party/abseil sources; derived from:
//
// ```
// $ find third_party/abseil-cpp/absl | grep '\.cc' | grep -v 'test' | grep -v 'benchmark' | grep -v gaussian_distribution_gentables | grep -v print_hash_of | grep -v chi_square
// ```
//
fn buildLibAbseilCpp(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("abseil-cpp-common", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
system_sdk.include(b, lib, .{});
const target = (std.zig.system.NativeTargetInfo.detect(b.allocator, step.target) catch unreachable).target;
if (target.os.tag == .macos) lib.linkFramework("CoreFoundation");
if (target.os.tag == .windows) lib.linkSystemLibrary("bcrypt");
var flags = std.ArrayList([]const u8).init(b.allocator);
flags.appendSlice(&.{
include("libs/dawn"),
include("libs/dawn/third_party/abseil-cpp"),
}) catch unreachable;
if (target.os.tag == .windows) flags.appendSlice(&.{
"-DABSL_FORCE_THREAD_IDENTITY_MODE=2",
"-DWIN32_LEAN_AND_MEAN",
"-DD3D10_ARBITRARY_HEADER_ORDERING",
"-D_CRT_SECURE_NO_WARNINGS",
"-DNOMINMAX",
}) catch unreachable;
// absl
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/third_party/abseil-cpp/absl/strings/",
"libs/dawn/third_party/abseil-cpp/absl/strings/internal/",
"libs/dawn/third_party/abseil-cpp/absl/strings/internal/str_format/",
"libs/dawn/third_party/abseil-cpp/absl/types/",
"libs/dawn/third_party/abseil-cpp/absl/flags/internal/",
"libs/dawn/third_party/abseil-cpp/absl/flags/",
"libs/dawn/third_party/abseil-cpp/absl/synchronization/",
"libs/dawn/third_party/abseil-cpp/absl/synchronization/internal/",
"libs/dawn/third_party/abseil-cpp/absl/hash/internal/",
"libs/dawn/third_party/abseil-cpp/absl/debugging/",
"libs/dawn/third_party/abseil-cpp/absl/debugging/internal/",
"libs/dawn/third_party/abseil-cpp/absl/status/",
"libs/dawn/third_party/abseil-cpp/absl/time/internal/cctz/src/",
"libs/dawn/third_party/abseil-cpp/absl/time/",
"libs/dawn/third_party/abseil-cpp/absl/container/internal/",
"libs/dawn/third_party/abseil-cpp/absl/numeric/",
"libs/dawn/third_party/abseil-cpp/absl/random/",
"libs/dawn/third_party/abseil-cpp/absl/random/internal/",
"libs/dawn/third_party/abseil-cpp/absl/base/internal/",
"libs/dawn/third_party/abseil-cpp/absl/base/",
},
.flags = flags.items,
.excluding_contains = &.{ "_test", "_testing", "benchmark", "print_hash_of.cc", "gaussian_distribution_gentables.cc" },
}) catch unreachable;
return lib;
}
// Buids dawn wire sources; derived from src/dawn/wire/BUILD.gn
fn buildLibDawnWire(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("dawn-wire", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
var flags = std.ArrayList([]const u8).init(b.allocator);
flags.appendSlice(&.{
include("libs/dawn"),
include("libs/dawn/src"),
include("libs/dawn/include"),
include("libs/dawn/out/Debug/gen/include"),
include("libs/dawn/out/Debug/gen/src"),
}) catch unreachable;
appendLangScannedSources(b, lib, options, .{
.rel_dirs = &.{
"libs/dawn/out/Debug/gen/src/dawn/wire/",
"libs/dawn/out/Debug/gen/src/dawn/wire/client/",
"libs/dawn/out/Debug/gen/src/dawn/wire/server/",
"libs/dawn/src/dawn/wire/",
"libs/dawn/src/dawn/wire/client/",
"libs/dawn/src/dawn/wire/server/",
},
.flags = flags.items,
.excluding_contains = &.{ "test", "benchmark", "mock" },
}) catch unreachable;
return lib;
}
// Builds dawn utils sources; derived from src/dawn/utils/BUILD.gn
fn buildLibDawnUtils(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("dawn-utils", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
glfw.link(b, lib, .{ .system_sdk = .{ .set_sysroot = false } });
var flags = std.ArrayList([]const u8).init(b.allocator);
appendDawnEnableBackendTypeFlags(&flags, options) catch unreachable;
flags.appendSlice(&.{
include("libs/mach-glfw/upstream/glfw/include"),
include("libs/dawn/src"),
include("libs/dawn/include"),
include("libs/dawn/out/Debug/gen/include"),
}) catch unreachable;
var cpp_sources = std.ArrayList([]const u8).init(b.allocator);
for ([_][]const u8{
"src/dawn/utils/BackendBinding.cpp",
"src/dawn/utils/NullBinding.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
if (options.d3d12.?) {
for ([_][]const u8{
"src/dawn/utils/D3D12Binding.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
flags.appendSlice(dawn_d3d12_flags) catch unreachable;
}
if (options.metal.?) {
for ([_][]const u8{
"src/dawn/utils/MetalBinding.mm",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
}
if (options.desktop_gl.?) {
for ([_][]const u8{
"src/dawn/utils/OpenGLBinding.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
}
if (options.vulkan.?) {
for ([_][]const u8{
"src/dawn/utils/VulkanBinding.cpp",
}) |path| {
var abs_path = std.fs.path.join(b.allocator, &.{ thisDir(), "libs/dawn", path }) catch unreachable;
cpp_sources.append(abs_path) catch unreachable;
}
}
var cpp_flags = std.ArrayList([]const u8).init(b.allocator);
cpp_flags.appendSlice(flags.items) catch unreachable;
options.appendFlags(&cpp_flags, false, true) catch unreachable;
lib.addCSourceFiles(cpp_sources.items, cpp_flags.items);
return lib;
}
// Buids dxcompiler sources; derived from libs/DirectXShaderCompiler/CMakeLists.txt
fn buildLibDxcompiler(b: *Builder, step: *std.build.LibExeObjStep, options: Options) *std.build.LibExeObjStep {
const lib = if (!options.separate_libs) step else blk: {
var main_abs = std.fs.path.join(b.allocator, &.{ thisDir(), "src/dawn/dummy.zig" }) catch unreachable;
const separate_lib = b.addStaticLibrary("dxcompiler", main_abs);
separate_lib.install();
separate_lib.setBuildMode(step.build_mode);
separate_lib.setTarget(step.target);
separate_lib.linkLibCpp();
break :blk separate_lib;
};
system_sdk.include(b, lib, .{});
lib.linkSystemLibrary("oleaut32");
lib.linkSystemLibrary("ole32");
lib.linkSystemLibrary("dbghelp");
lib.linkSystemLibrary("dxguid");
lib.linkLibCpp();
var flags = std.ArrayList([]const u8).init(b.allocator);
flags.appendSlice(&.{
include("libs/"),
include("libs/DirectXShaderCompiler/include/llvm/llvm_assert"),
include("libs/DirectXShaderCompiler/include"),
include("libs/DirectXShaderCompiler/build/include"),
include("libs/DirectXShaderCompiler/build/lib/HLSL"),
include("libs/DirectXShaderCompiler/build/lib/DxilPIXPasses"),
include("libs/DirectXShaderCompiler/build/include"),
"-DUNREFERENCED_PARAMETER(x)=",
"-Wno-inconsistent-missing-override",
"-Wno-missing-exception-spec",
"-Wno-switch",
"-Wno-deprecated-declarations",
"-Wno-macro-redefined", // regex2.h and regcomp.c requires this for OUT redefinition
"-DMSFT_SUPPORTS_CHILD_PROCESSES=1",
"-DHAVE_LIBPSAPI=1",
"-DHAVE_LIBSHELL32=1",
"-DLLVM_ON_WIN32=1",
}) catch unreachable;
appendLangScannedSources(b, lib, options, .{
.zero_debug_symbols = true,
.rel_dirs = &.{
"libs/DirectXShaderCompiler/lib/Analysis/IPA",
"libs/DirectXShaderCompiler/lib/Analysis",
"libs/DirectXShaderCompiler/lib/AsmParser",
"libs/DirectXShaderCompiler/lib/Bitcode/Writer",
"libs/DirectXShaderCompiler/lib/DxcBindingTable",
"libs/DirectXShaderCompiler/lib/DxcSupport",
"libs/DirectXShaderCompiler/lib/DxilContainer",
"libs/DirectXShaderCompiler/lib/DxilPIXPasses",
"libs/DirectXShaderCompiler/lib/DxilRootSignature",
"libs/DirectXShaderCompiler/lib/DXIL",
"libs/DirectXShaderCompiler/lib/DxrFallback",
"libs/DirectXShaderCompiler/lib/HLSL",
"libs/DirectXShaderCompiler/lib/IRReader",
"libs/DirectXShaderCompiler/lib/IR",
"libs/DirectXShaderCompiler/lib/Linker",
"libs/DirectXShaderCompiler/lib/miniz",
"libs/DirectXShaderCompiler/lib/Option",
"libs/DirectXShaderCompiler/lib/PassPrinters",
"libs/DirectXShaderCompiler/lib/Passes",
"libs/DirectXShaderCompiler/lib/ProfileData",
"libs/DirectXShaderCompiler/lib/Target",
"libs/DirectXShaderCompiler/lib/Transforms/InstCombine",
"libs/DirectXShaderCompiler/lib/Transforms/IPO",
"libs/DirectXShaderCompiler/lib/Transforms/Scalar",
"libs/DirectXShaderCompiler/lib/Transforms/Utils",
"libs/DirectXShaderCompiler/lib/Transforms/Vectorize",
},
.flags = flags.items,
}) catch unreachable;
appendLangScannedSources(b, lib, options, .{
.zero_debug_symbols = true,
.rel_dirs = &.{
"libs/DirectXShaderCompiler/lib/Support",
},
.flags = flags.items,
.excluding_contains = &.{
"DynamicLibrary.cpp", // ignore, HLSL_IGNORE_SOURCES
"PluginLoader.cpp", // ignore, HLSL_IGNORE_SOURCES
"Path.cpp", // ignore, LLVM_INCLUDE_TESTS
"DynamicLibrary.cpp", // ignore
},
}) catch unreachable;
appendLangScannedSources(b, lib, options, .{
.zero_debug_symbols = true,
.rel_dirs = &.{
"libs/DirectXShaderCompiler/lib/Bitcode/Reader",
},
.flags = flags.items,
.excluding_contains = &.{
"BitReader.cpp", // ignore
},
}) catch unreachable;
return lib;
}
fn include(comptime rel: []const u8) []const u8 {
return "-I" ++ thisDir() ++ "/" ++ rel;
}
fn thisDir() []const u8 {
return std.fs.path.dirname(@src().file) orelse ".";
}
fn appendLangScannedSources(
b: *Builder,
step: *std.build.LibExeObjStep,
options: Options,
args: struct {
zero_debug_symbols: bool = false,
flags: []const []const u8,
rel_dirs: []const []const u8 = &.{},
objc: bool = false,
excluding: []const []const u8 = &.{},
excluding_contains: []const []const u8 = &.{},
},
) !void {
var cpp_flags = std.ArrayList([]const u8).init(b.allocator);
try cpp_flags.appendSlice(args.flags);
options.appendFlags(&cpp_flags, args.zero_debug_symbols, true) catch unreachable;
const cpp_extensions: []const []const u8 = if (args.objc) &.{".mm"} else &.{ ".cpp", ".cc" };
try appendScannedSources(b, step, .{
.flags = cpp_flags.items,
.rel_dirs = args.rel_dirs,
.extensions = cpp_extensions,
.excluding = args.excluding,
.excluding_contains = args.excluding_contains,
});
var flags = std.ArrayList([]const u8).init(b.allocator);
try flags.appendSlice(args.flags);
options.appendFlags(&flags, args.zero_debug_symbols, false) catch unreachable;
const c_extensions: []const []const u8 = if (args.objc) &.{".m"} else &.{".c"};
try appendScannedSources(b, step, .{
.flags = flags.items,
.rel_dirs = args.rel_dirs,
.extensions = c_extensions,
.excluding = args.excluding,
.excluding_contains = args.excluding_contains,
});
}
fn appendScannedSources(b: *Builder, step: *std.build.LibExeObjStep, args: struct {
flags: []const []const u8,
rel_dirs: []const []const u8 = &.{},
extensions: []const []const u8,
excluding: []const []const u8 = &.{},
excluding_contains: []const []const u8 = &.{},
}) !void {
var sources = std.ArrayList([]const u8).init(b.allocator);
for (args.rel_dirs) |rel_dir| {
try scanSources(b, &sources, rel_dir, args.extensions, args.excluding, args.excluding_contains);
}
step.addCSourceFiles(sources.items, args.flags);
}
/// Scans rel_dir for sources ending with one of the provided extensions, excluding relative paths
/// listed in the excluded list.
/// Results are appended to the dst ArrayList.
fn scanSources(
b: *Builder,
dst: *std.ArrayList([]const u8),
rel_dir: []const u8,
extensions: []const []const u8,
excluding: []const []const u8,
excluding_contains: []const []const u8,
) !void {
const abs_dir = try std.mem.concat(b.allocator, u8, &.{ thisDir(), "/", rel_dir });
var dir = try std.fs.openDirAbsolute(abs_dir, .{ .iterate = true });
defer dir.close();
var dir_it = dir.iterate();
while (try dir_it.next()) |entry| {
if (entry.kind != .File) continue;
var abs_path = try std.fs.path.join(b.allocator, &.{ abs_dir, entry.name });
abs_path = try std.fs.realpathAlloc(b.allocator, abs_path);
const allowed_extension = blk: {
const ours = std.fs.path.extension(entry.name);
for (extensions) |ext| {
if (std.mem.eql(u8, ours, ext)) break :blk true;
}
break :blk false;
};
if (!allowed_extension) continue;
const excluded = blk: {
for (excluding) |excluded| {
if (std.mem.eql(u8, entry.name, excluded)) break :blk true;
}
break :blk false;
};
if (excluded) continue;
const excluded_contains = blk: {
for (excluding_contains) |contains| {
if (std.mem.containsAtLeast(u8, entry.name, 1, contains)) break :blk true;
}
break :blk false;
};
if (excluded_contains) continue;
try dst.append(abs_path);
}
}