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// Copyright (c) 2017-2021, The rav1e contributors. All rights reserved | |
// | |
// This source code is subject to the terms of the BSD 2 Clause License and | |
// the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License | |
// was not distributed with this source code in the LICENSE file, you can | |
// obtain it at www.aomedia.org/license/software. If the Alliance for Open | |
// Media Patent License 1.0 was not distributed with this source code in the | |
// PATENTS file, you can obtain it at www.aomedia.org/license/patent. | |
#![allow(clippy::print_literal)] | |
#![allow(clippy::unused_io_amount)] | |
use rustc_version::{version, version_meta, Channel, Version}; | |
#[allow(unused_imports)] | |
use std::env; | |
use std::fs; | |
use std::path::{Path, PathBuf}; | |
use std::process::exit; | |
#[allow(dead_code)] | |
fn rerun_dir<P: AsRef<Path>>(dir: P) { | |
for entry in fs::read_dir(dir).unwrap() { | |
let entry = entry.unwrap(); | |
let path = entry.path(); | |
println!("cargo:rerun-if-changed={}", path.to_string_lossy()); | |
if path.is_dir() { | |
rerun_dir(path); | |
} | |
} | |
} | |
#[allow(dead_code)] | |
fn hash_changed( | |
files: &[&str], out_dir: &str, config: &Path, | |
) -> Option<([u8; 8], PathBuf)> { | |
use std::collections::hash_map::DefaultHasher; | |
use std::hash::Hasher; | |
use std::io::Read; | |
let mut hasher = DefaultHasher::new(); | |
let paths = files | |
.iter() | |
.map(Path::new) | |
.chain(std::iter::once(config)) | |
.chain(std::iter::once(Path::new("build.rs"))); | |
for path in paths { | |
if let Ok(mut f) = std::fs::File::open(path) { | |
let mut buf = Vec::new(); | |
f.read_to_end(&mut buf).unwrap(); | |
hasher.write(&buf); | |
} else { | |
panic!("Cannot open {}", path.display()); | |
} | |
} | |
let strip = env::var("STRIP").unwrap_or_else(|_| "strip".to_string()); | |
hasher.write(strip.as_bytes()); | |
let hash = hasher.finish().to_be_bytes(); | |
let hash_path = Path::new(&out_dir).join("asm.hash"); | |
if let Ok(old_hash) = std::fs::read(&hash_path) { | |
if old_hash == hash { | |
return None; | |
} | |
} | |
Some((hash, hash_path)) | |
} | |
#[cfg(feature = "asm")] | |
fn build_nasm_files() { | |
use std::fs::File; | |
use std::io::Write; | |
let out_dir = env::var("OUT_DIR").unwrap(); | |
let dest_path = Path::new(&out_dir).join("config.asm"); | |
let mut config_file = File::create(&dest_path).unwrap(); | |
config_file.write(b" %define private_prefix rav1e\n").unwrap(); | |
config_file.write(b" %define ARCH_X86_32 0\n").unwrap(); | |
config_file.write(b" %define ARCH_X86_64 1\n").unwrap(); | |
config_file.write(b" %define PIC 1\n").unwrap(); | |
config_file.write(b" %define STACK_ALIGNMENT 16\n").unwrap(); | |
config_file.write(b" %define HAVE_AVX512ICL 1\n").unwrap(); | |
if env::var("CARGO_CFG_TARGET_VENDOR").unwrap() == "apple" { | |
config_file.write(b" %define PREFIX 1\n").unwrap(); | |
} | |
let asm_files = &[ | |
"src/x86/ipred_avx2.asm", | |
"src/x86/ipred_sse.asm", | |
"src/x86/ipred16_avx2.asm", | |
"src/x86/itx_avx2.asm", | |
"src/x86/itx_sse.asm", | |
"src/x86/itx16_avx2.asm", | |
"src/x86/itx16_sse.asm", | |
"src/x86/looprestoration_avx2.asm", | |
"src/x86/looprestoration16_avx2.asm", | |
"src/x86/mc_avx2.asm", | |
"src/x86/mc16_avx2.asm", | |
"src/x86/mc_avx512.asm", | |
"src/x86/mc_sse.asm", | |
"src/x86/mc16_sse.asm", | |
"src/x86/me.asm", | |
"src/x86/sad_plane.asm", | |
"src/x86/sad_sse2.asm", | |
"src/x86/sad_avx.asm", | |
"src/x86/satd.asm", | |
"src/x86/cdef_dist.asm", | |
"src/x86/sse.asm", | |
"src/x86/cdef_rav1e.asm", | |
"src/x86/cdef_sse.asm", | |
"src/x86/cdef16_avx2.asm", | |
"src/x86/cdef16_sse.asm", | |
"src/x86/tables.asm", | |
]; | |
if let Some((hash, hash_path)) = | |
hash_changed(asm_files, &out_dir, &dest_path) | |
{ | |
let mut config_include_arg = String::from("-I"); | |
config_include_arg.push_str(&out_dir); | |
config_include_arg.push('/'); | |
let mut nasm = nasm_rs::Build::new(); | |
nasm.min_version(2, 14, 0); | |
for file in asm_files { | |
nasm.file(file); | |
} | |
nasm.flag(&config_include_arg); | |
nasm.flag("-Isrc/"); | |
let obj = nasm.compile_objects().unwrap_or_else(|e| { | |
println!("cargo:warning={}", e); | |
panic!("NASM build failed. Make sure you have nasm installed or disable the \"asm\" feature.\n\ | |
You can get NASM from https://nasm.us or your system's package manager.\n\nerror: {}", e); | |
}); | |
// cc is better at finding the correct archiver | |
let mut cc = cc::Build::new(); | |
for o in obj { | |
cc.object(o); | |
} | |
cc.compile("rav1easm"); | |
// Strip local symbols from the asm library since they | |
// confuse the debugger. | |
fn strip<P: AsRef<Path>>(obj: P) { | |
let strip = env::var("STRIP").unwrap_or_else(|_| "strip".to_string()); | |
let mut cmd = std::process::Command::new(strip); | |
cmd.arg("-x").arg(obj.as_ref()); | |
let _ = cmd.output(); | |
} | |
strip(Path::new(&out_dir).join("librav1easm.a")); | |
std::fs::write(hash_path, &hash[..]).unwrap(); | |
} else { | |
println!("cargo:rustc-link-search={}", out_dir); | |
} | |
println!("cargo:rustc-link-lib=static=rav1easm"); | |
rerun_dir("src/x86"); | |
rerun_dir("src/ext/x86"); | |
} | |
#[cfg(feature = "asm")] | |
fn build_asm_files() { | |
use std::fs::File; | |
use std::io::Write; | |
let out_dir = env::var("OUT_DIR").unwrap(); | |
let dest_path = Path::new(&out_dir).join("config.h"); | |
let mut config_file = File::create(&dest_path).unwrap(); | |
if env::var("CARGO_CFG_TARGET_VENDOR").unwrap() == "apple" { | |
config_file.write(b" #define PREFIX 1\n").unwrap(); | |
} | |
config_file.write(b" #define PRIVATE_PREFIX rav1e_\n").unwrap(); | |
config_file.write(b" #define ARCH_AARCH64 1\n").unwrap(); | |
config_file.write(b" #define ARCH_ARM 0\n").unwrap(); | |
config_file.write(b" #define CONFIG_LOG 1 \n").unwrap(); | |
config_file.write(b" #define HAVE_ASM 1\n").unwrap(); | |
config_file.sync_all().unwrap(); | |
let asm_files = &[ | |
"src/arm/64/cdef.S", | |
"src/arm/64/cdef16.S", | |
"src/arm/64/mc.S", | |
"src/arm/64/mc16.S", | |
"src/arm/64/itx.S", | |
"src/arm/64/itx16.S", | |
"src/arm/64/ipred.S", | |
"src/arm/64/ipred16.S", | |
"src/arm/64/sad.S", | |
"src/arm/tables.S", | |
]; | |
if let Some((hash, hash_path)) = | |
hash_changed(asm_files, &out_dir, &dest_path) | |
{ | |
cc::Build::new() | |
.files(asm_files) | |
.include(".") | |
.include(&out_dir) | |
.compile("rav1e-aarch64"); | |
std::fs::write(hash_path, &hash[..]).unwrap(); | |
} else { | |
println!("cargo:rustc-link-search={}", out_dir); | |
println!("cargo:rustc-link-lib=static=rav1e-aarch64"); | |
} | |
rerun_dir("src/arm"); | |
} | |
fn rustc_version_check() { | |
// This should match the version in the CI | |
// Make sure to updated README.md when this changes. | |
const REQUIRED_VERSION: &str = "1.59.0"; | |
if version().unwrap() < Version::parse(REQUIRED_VERSION).unwrap() { | |
eprintln!("rav1e requires rustc >= {}.", REQUIRED_VERSION); | |
exit(1); | |
} | |
if version_meta().unwrap().channel == Channel::Nightly { | |
println!("cargo:rustc-cfg=nightly_rustc"); | |
} | |
} | |
#[allow(unused_variables)] | |
fn main() { | |
rustc_version_check(); | |
let arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap(); | |
let os = env::var("CARGO_CFG_TARGET_OS").unwrap(); | |
// let env = env::var("CARGO_CFG_TARGET_ENV").unwrap(); | |
#[cfg(feature = "asm")] | |
{ | |
if arch == "x86_64" { | |
println!("cargo:rustc-cfg={}", "nasm_x86_64"); | |
build_nasm_files() | |
} | |
if arch == "aarch64" { | |
println!("cargo:rustc-cfg={}", "asm_neon"); | |
build_asm_files() | |
} | |
} | |
if os == "windows" && cfg!(feature = "decode_test") { | |
panic!("Unsupported feature on this platform!"); | |
} | |
vergen::generate_cargo_keys(vergen::ConstantsFlags::all()) | |
.expect("Unable to generate the cargo keys!"); | |
println!("cargo:rustc-env=PROFILE={}", env::var("PROFILE").unwrap()); | |
} |