81 lines
2 KiB
Zig
81 lines
2 KiB
Zig
const Buffer = @import("Buffer.zig");
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const Sampler = @import("Sampler.zig");
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const TextureView = @import("TextureView.zig");
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const BindGroupLayout = @import("BindGroupLayout.zig");
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const BindGroup = @This();
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/// The type erased pointer to the BindGroup implementation
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/// Equal to c.WGPUBindGroup 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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};
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pub inline fn reference(group: BindGroup) void {
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group.vtable.reference(group.ptr);
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}
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pub inline fn release(group: BindGroup) void {
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group.vtable.release(group.ptr);
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}
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pub inline fn setLabel(group: BindGroup, label: [:0]const u8) void {
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group.vtable.setLabel(group.ptr, label);
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}
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pub const Entry = struct {
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binding: u32,
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buffer: ?Buffer = null,
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offset: u64 = 0,
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size: u64,
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sampler: ?Sampler = null,
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texture_view: ?TextureView = null,
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/// Helper to create a buffer BindGroup.Entry.
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pub fn buffer(binding: u32, buf: Buffer, offset: u64, size: u64) Entry {
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return .{
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.binding = binding,
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.buffer = buf,
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.offset = offset,
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.size = size,
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};
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}
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/// Helper to create a sampler BindGroup.Entry.
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pub fn sampler(binding: u32, sam: Sampler) Entry {
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return .{
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.binding = binding,
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.sampler = sam,
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.size = 0,
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};
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}
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/// Helper to create a texture view BindGroup.Entry.
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pub fn textureView(binding: u32, texview: TextureView) Entry {
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return .{
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.binding = binding,
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.texture_view = texview,
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.size = 0,
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};
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}
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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: BindGroupLayout,
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entries: []const Entry,
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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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_ = Entry;
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_ = Descriptor;
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}
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