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gpu: add PipelineLayout.Descriptor.init slice helper

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-08-16 17:37:49 -07:00
parent 03a9cbab9a
commit aaa194c5eb
2 changed files with 15 additions and 1 deletions
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1
gpu/README.md
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@ -170,6 +170,7 @@ And, to initialize data structures with slices in them, the following helpers ar
* `InstanceDescriptor.init`
* `TogglesDeviceDescriptor.init`
* `Device.Descriptor.init`
* `PipelineLayout.Descriptor.init`
### Typed callbacks

15
gpu/src/pipeline_layout.zig
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@ -6,9 +6,22 @@ pub const PipelineLayout = opaque {
pub const Descriptor = extern struct {
next_in_chain: ?*const ChainedStruct = null,
label: ?[*:0]const u8 = null,
// TODO: slice helper
bind_group_layout_count: u32 = 0,
bind_group_layouts: ?[*]const *BindGroupLayout = null,
/// Provides a slightly friendlier Zig API to initialize this structure.
pub inline fn init(v: struct {
next_in_chain: ?*const ChainedStruct = null,
label: ?[*:0]const u8 = null,
bind_group_layouts: ?[]const *BindGroupLayout = null,
}) Descriptor {
return .{
.next_in_chain = v.next_in_chain,
.label = v.label,
.bind_group_layout_count = if (v.bind_group_layouts) |e| @intCast(u32, e.len) else 0,
.bind_group_layouts = if (v.bind_group_layouts) |e| e.ptr else null,
};
}
};
pub inline fn setLabel(pipeline_layout: *PipelineLayout, label: [*:0]const u8) void {