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[c] bindgen based bindings for Rust

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This commit is contained in:
Mario Zechner 2025-07-21 03:05:47 +02:00
parent 715abbc171
commit aa6b33b626
4 changed files with 293 additions and 44 deletions
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271
spine-c/tests/rust-wasm/Cargo.lock generated
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@ -2,6 +2,41 @@
# It is not intended for manual editing.
version = 4
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"memchr",
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[[package]]
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"log",
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"quote",
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"syn",
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name = "cc"
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@ -11,6 +46,160 @@ dependencies = [
"shlex",
]
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name = "regex-automata"
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@ -21,5 +210,87 @@ checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
name = "spine-c-wasm-test"
version = "0.1.0"
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"cc",
]
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"windows_i686_gnu",
"windows_i686_gnullvm",
"windows_i686_msvc",
"windows_x86_64_gnu",
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1
spine-c/tests/rust-wasm/Cargo.toml
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@ -10,3 +10,4 @@ crate-type = ["cdylib"]
[build-dependencies]
cc = "1.0"
bindgen = "0.70"

16
spine-c/tests/rust-wasm/build.rs
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@ -76,9 +76,25 @@ fn main() {
cpp_build.compile("spine");
// Generate bindings with bindgen
let bindings = bindgen::Builder::default()
.header("../../include/spine-c.h")
.clang_arg("-I../../include")
.clang_arg("-I../../../spine-cpp/include")
.clang_arg("-I../../src")
.parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
.generate()
.expect("Unable to generate bindings");
let out_path = std::path::PathBuf::from(env::var("OUT_DIR").unwrap());
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
// Link libraries - no C++ stdlib since we're using no-cpprt variant
// The no-cpprt.cpp provides minimal runtime stubs
println!("cargo:rerun-if-changed=../../spine-cpp/src");
println!("cargo:rerun-if-changed=../../src");
println!("cargo:rerun-if-changed=../../include/spine-c.h");
}

47
spine-c/tests/rust-wasm/src/lib.rs
View File

@ -1,38 +1,8 @@
use std::ffi::{CStr, CString};
use std::os::raw::{c_char, c_float, c_int, c_void};
// Opaque pointer types matching spine-c - all are SPINE_OPAQUE_TYPE which means pointers
type SpineAtlas = *mut c_void;
type SpineSkeletonData = *mut c_void;
type SpineSkeleton = *mut c_void;
type SpineSkeletonDataResult = *mut c_void; // This is also an opaque pointer!
// FFI bindings to spine-c API (minimal subset for testing)
extern "C" {
fn spine_bone_set_y_down(yDown: bool);
fn spine_atlas_load_callback(
data: *const c_char,
atlasPath: *const c_char,
textureLoader: extern "C" fn(*const c_char) -> *mut c_void,
textureUnloader: extern "C" fn(*mut c_void) -> (),
) -> SpineAtlas;
fn spine_atlas_dispose(atlas: SpineAtlas);
fn spine_skeleton_data_load_binary(
atlas: SpineAtlas,
data: *const u8,
length: i32,
skeletonPath: *const c_char,
) -> SpineSkeletonDataResult;
fn spine_skeleton_data_result_get_data(result: SpineSkeletonDataResult) -> SpineSkeletonData;
fn spine_skeleton_data_result_get_error(result: SpineSkeletonDataResult) -> *const c_char;
fn spine_skeleton_data_result_dispose(result: SpineSkeletonDataResult);
fn spine_skeleton_create(skeletonData: SpineSkeletonData) -> SpineSkeleton;
fn spine_skeleton_dispose(skeleton: SpineSkeleton);
fn spine_skeleton_setup_pose(skeleton: SpineSkeleton);
fn spine_skeleton_update_world_transform_1(skeleton: SpineSkeleton, physics: c_int);
fn spine_skeleton_get_x(skeleton: SpineSkeleton) -> c_float;
fn spine_skeleton_get_y(skeleton: SpineSkeleton) -> c_float;
}
// Include the generated bindings
include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
// Headless texture loader functions with debug prints
extern "C" fn headless_texture_loader(path: *const c_char) -> *mut c_void {
@ -82,8 +52,8 @@ pub extern "C" fn test_spine_basic() -> c_int {
let atlas = spine_atlas_load_callback(
atlas_data.as_ptr(),
atlas_dir.as_ptr(),
headless_texture_loader,
headless_texture_unloader,
Some(headless_texture_loader),
Some(headless_texture_unloader),
);
println!("Atlas loaded: {:?}", atlas);
@ -203,22 +173,13 @@ mod wasm {
}
}
// mod bindgen_test; // Temporarily disabled
#[cfg(test)]
mod tests {
use super::*;
// use crate::bindgen_test::*;
#[test]
fn test_spine_basic_works() {
let result = test_spine_basic();
assert_eq!(result, 0, "Spine basic test should succeed");
}
// #[test]
// fn test_bindgen_version() {
// let result = test_bindgen_spine();
// assert_eq!(result, 0, "Bindgen test should succeed");
// }
}