169b1e2a42
* Fixed ErrorCallback.init() alignment * Fixed callbacks alignments * Fixed more of the callback alignment problems * Added checks for void Context in callback
104 lines
2.8 KiB
Zig
104 lines
2.8 KiB
Zig
const std = @import("std");
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const ShaderModule = @This();
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/// The type erased pointer to the ShaderModule implementation
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/// Equal to c.WGPUShaderModule for NativeInstance.
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ptr: *anyopaque,
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vtable: *const VTable,
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pub const VTable = struct {
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reference: fn (ptr: *anyopaque) void,
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release: fn (ptr: *anyopaque) void,
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setLabel: fn (ptr: *anyopaque, label: [:0]const u8) void,
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getCompilationInfo: fn (ptr: *anyopaque, callback: *CompilationInfoCallback) void,
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};
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pub inline fn reference(shader: ShaderModule) void {
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shader.vtable.reference(shader.ptr);
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}
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pub inline fn release(shader: ShaderModule) void {
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shader.vtable.release(shader.ptr);
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}
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pub inline fn setLabel(shader: ShaderModule, label: [:0]const u8) void {
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shader.vtable.setLabel(shader.ptr, label);
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}
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pub inline fn getCompilationInfo(shader: ShaderModule, callback: *CompilationInfoCallback) void {
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shader.vtable.getCompilationInfo(shader.ptr, callback);
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}
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pub const CompilationInfoCallback = struct {
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type_erased_ctx: *anyopaque,
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type_erased_callback: fn (ctx: *anyopaque, status: CompilationInfoRequestStatus, info: *const CompilationInfo) callconv(.Inline) void,
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pub fn init(
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comptime Context: type,
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ctx: Context,
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comptime callback: fn (ctx: Context, status: CompilationInfoRequestStatus, info: *const CompilationInfo) void,
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) CompilationInfoCallback {
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const erased = (struct {
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pub inline fn erased(type_erased_ctx: *anyopaque, status: CompilationInfoRequestStatus) void {
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callback(if (Context == void) {} else @ptrCast(Context, @alignCast(std.meta.alignment(Context), type_erased_ctx)), status);
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}
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}).erased;
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return .{
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.type_erased_ctx = if (Context == void) undefined else ctx,
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.type_erased_callback = erased,
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};
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}
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};
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pub const CompilationInfoRequestStatus = enum(u32) {
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success = 0x00000000,
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err = 0x00000001,
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device_lost = 0x00000002,
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unknown = 0x00000003,
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};
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pub const CompilationInfo = struct {
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messages: []const CompilationMessage,
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};
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pub const CompilationMessageType = enum(u32) {
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err = 0x00000000,
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warning = 0x00000001,
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info = 0x00000002,
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};
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pub const CompilationMessage = extern struct {
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reserved: ?*anyopaque = null,
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message: [*:0]const u8,
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type: CompilationMessageType,
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line_num: u64,
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line_pos: u64,
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offset: u64,
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length: u64,
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};
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pub const CodeTag = enum {
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spirv,
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wgsl,
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};
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pub const Descriptor = struct {
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label: ?[*:0]const u8 = null,
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code: union(CodeTag) {
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wgsl: [*:0]const u8,
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spirv: []const u32,
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},
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};
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test {
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_ = VTable;
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_ = reference;
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_ = release;
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_ = CompilationInfoRequestStatus;
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_ = CompilationInfo;
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_ = CompilationMessageType;
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_ = CompilationMessage;
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_ = CodeTag;
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_ = Descriptor;
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}
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