71 lines
2.1 KiB
Rust
71 lines
2.1 KiB
Rust
extern crate libbindgen;
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use std::env;
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use std::fs::OpenOptions;
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use std::io::Write;
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use std::path::PathBuf;
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fn format_write(builder: libbindgen::Builder, output: &str) {
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let s = builder.generate()
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.unwrap()
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.to_string()
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.replace("/**", "/*")
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.replace("/*!", "/*");
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let mut file = OpenOptions::new()
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.write(true)
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.truncate(true)
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.create(true)
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.open(output)
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.unwrap();
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let _ = file.write(s.as_bytes());
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}
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fn common_builder() -> libbindgen::Builder {
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libbindgen::builder()
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.raw_line("#![allow(dead_code)]")
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.raw_line("#![allow(non_camel_case_types)]")
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.raw_line("#![allow(non_snake_case)]")
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.raw_line("#![allow(non_upper_case_globals)]")
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}
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fn find_dir(default: &'static str, env_key: &'static str) -> PathBuf {
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match env::var_os(env_key) {
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Some(val) => PathBuf::from(&val),
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_ => PathBuf::from(default),
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}
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}
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fn main() {
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let cuda_include = find_dir("/opt/cuda/include", "CUDA_INCLUDE_PATH");
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let nvc_include = find_dir("/opt/nvidia-video-codec/",
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"NVIDIA_VIDEO_CODEC_INCLUDE_PATH");
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// TODO support windows
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println!("cargo:rustc-link-lib=dylib={}", "cuda");
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println!("cargo:rustc-link-lib=dylib={}", "nvcuvid");
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println!("cargo:rustc-link-lib=dylib={}", "nvidia-encode");
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let cuda_builder = common_builder()
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.clang_arg(format!("-I{}", cuda_include.to_string_lossy()))
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.header(cuda_include.join("cuda.h").to_string_lossy());
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// Manually fix the comment so rustdoc won't try to pick them
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format_write(cuda_builder, "src/ffi/cuda.rs");
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let cuvid_builder = common_builder()
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.clang_arg(format!("-I{}", nvc_include.to_string_lossy()))
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.clang_arg(format!("-I{}", cuda_include.to_string_lossy()))
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.header(nvc_include.join("nvcuvid.h").to_string_lossy());
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format_write(cuvid_builder, "src/ffi/cuvid.rs");
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let nvenc_builder = common_builder()
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.clang_arg(format!("-I{}", nvc_include.to_string_lossy()))
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.header(nvc_include.join("nvEncodeAPI.h").to_string_lossy());
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format_write(nvenc_builder, "src/ffi/nvenc.rs");
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}
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