66 lines
1.8 KiB
Zig
66 lines
1.8 KiB
Zig
const std = @import("std");
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const Module = @import("Module.zig");
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const BackendParameters = @import("BackendParameters.zig");
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const cnzsl = @cImport({
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@cInclude("CNZSL/CNZSL.h");
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});
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const Self = @This();
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instance: *cnzsl.nzslSpirvWriter,
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pub fn init() !Self {
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const cwriter = cnzsl.nzslSpirvWriterCreate() orelse return error.NullPointer;
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return .{
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.instance = cwriter,
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};
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}
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pub fn deinit(self: Self) void {
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cnzsl.nzslSpirvWriterDestroy(self.instance);
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}
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pub fn getLastError(self: Self) ![]const u8 {
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const err = cnzsl.nzslSpirvWriterGetLastError(self.instance) orelse return error.NullPointer;
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return std.mem.span(err);
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}
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pub fn setEnv(self: Self, env: Environment) void {
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const SpirvEnv = extern struct {
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spv_major_version: u32,
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spv_minor_version: u32,
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};
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const cenv: SpirvEnv = .{
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.spv_major_version = @intCast(env.spv_version.major),
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.spv_minor_version = @intCast(env.spv_version.minor),
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};
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return cnzsl.nzslSpirvWriterSetEnv(self.instance, @ptrCast(&cenv));
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}
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pub fn generate(self: Self, module: Module, backend_parameters: BackendParameters) !Output {
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const output = cnzsl.nzslSpirvWriterGenerate(self.instance, @ptrCast(module.instance), @ptrCast(backend_parameters.instance)) orelse return error.FailedToGenerateSpirv;
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return .{
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.instance = output,
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};
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}
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pub const Environment = struct {
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spv_version: std.SemanticVersion,
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};
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pub const Output = struct {
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const InnerSelf = @This();
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instance: *cnzsl.nzslSpirvOutput,
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pub fn deinit(self: InnerSelf) void {
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cnzsl.nzslSpirvOutputDestroy(self.instance);
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}
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pub fn getCode(self: InnerSelf) []const u32 {
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var size: usize = undefined;
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const code = cnzsl.nzslSpirvOutputGetSpirv(self.instance, &size);
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return code[0..size];
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}
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};
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