100 lines
2.8 KiB
Zig
100 lines
2.8 KiB
Zig
const PipelineLayout = @import("PipelineLayout.zig");
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const ProgrammableStageDescriptor = @import("structs.zig").ProgrammableStageDescriptor;
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const BindGroupLayout = @import("BindGroupLayout.zig");
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const ComputePipeline = @This();
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/// The type erased pointer to the ComputePipeline implementation
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/// Equal to c.WGPUComputePipeline 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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getBindGroupLayout: fn (ptr: *anyopaque, group_index: u32) BindGroupLayout,
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};
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pub inline fn reference(pipeline: ComputePipeline) void {
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pipeline.vtable.reference(pipeline.ptr);
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}
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pub inline fn release(pipeline: ComputePipeline) void {
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pipeline.vtable.release(pipeline.ptr);
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}
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pub inline fn setLabel(pipeline: ComputePipeline, label: [:0]const u8) void {
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pipeline.vtable.setLabel(pipeline.ptr, label);
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}
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pub inline fn getBindGroupLayout(pipeline: ComputePipeline, group_index: u32) BindGroupLayout {
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return pipeline.vtable.getBindGroupLayout(pipeline.ptr, group_index);
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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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layout: PipelineLayout,
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compute: ProgrammableStageDescriptor,
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};
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pub const CreateStatus = 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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device_destroyed = 0x00000003,
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unknown = 0x00000004,
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};
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pub const CreateCallback = struct {
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type_erased_ctx: *anyopaque,
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type_erased_callback: fn (
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ctx: *anyopaque,
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status: CreateStatus,
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pipeline: ComputePipeline,
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message: [:0]const u8,
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) 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 (
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ctx: Context,
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status: CreateStatus,
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pipeline: ComputePipeline,
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message: [:0]const u8,
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) void,
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) CreateCallback {
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const erased = (struct {
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pub inline fn erased(
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type_erased_ctx: *anyopaque,
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status: CreateStatus,
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pipeline: ComputePipeline,
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message: [:0]const u8,
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) void {
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callback(
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@ptrCast(Context, @alignCast(@alignOf(Context), type_erased_ctx)),
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status,
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pipeline,
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message,
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);
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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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test {
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_ = VTable;
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_ = reference;
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_ = release;
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_ = setLabel;
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_ = getBindGroupLayout;
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_ = Descriptor;
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_ = CreateStatus;
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_ = CreateCallback;
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}
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