adding C bindings

2026-04-25 19:30:09 +02:00
parent 664ea9b92b
commit ef69470183
10 changed files with 765 additions and 75 deletions
@@ -0,0 +1,42 @@
+const std = @import("std");
+const ffi = @import("ffi.zig");
+const spv = ffi.spv;
+
+const Options = extern struct {
+    use_simd_vectors_specializations: ffi.SpvCBool,
+};
+
+fn toCResult(err: spv.Module.ModuleError) ffi.Result {
+    return switch (err) {
+        spv.Module.ModuleError.InvalidSpirV => ffi.Result.InvalidSpirV,
+        spv.Module.ModuleError.InvalidMagic => ffi.Result.InvalidMagic,
+        spv.Module.ModuleError.UnsupportedEndianness => ffi.Result.UnsupportedEndianness,
+        spv.Module.ModuleError.UnsupportedExtension => ffi.Result.UnsupportedExtension,
+        spv.Module.ModuleError.OutOfMemory => ffi.Result.OutOfMemory,
+    };
+}
+
+export fn SpvInitModule(module: **spv.Module, source: [*]const ffi.SpvCWord, source_len: ffi.SpvCSize, options: Options) callconv(.c) ffi.Result {
+    const allocator = std.heap.c_allocator;
+
+    module.* = allocator.create(spv.Module) catch return .OutOfMemory;
+
+    const cast_source: []const u32 = @as([*]const u32, @ptrCast(source[0..source_len]))[0..source_len];
+    module.*.* = spv.Module.init(
+        allocator,
+        cast_source[0..source_len],
+        .{
+            .use_simd_vectors_specializations = if (options.use_simd_vectors_specializations == 0) false else true,
+        },
+    ) catch |err| {
+        allocator.destroy(module.*);
+        return toCResult(err);
+    };
+    return .Success;
+}
+
+export fn SpvDeinitModule(module: *spv.Module) callconv(.c) void {
+    const allocator = std.heap.c_allocator;
+    module.deinit(allocator);
+    allocator.destroy(module);
+}