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gpu: add ProgrammableStageDescriptor slice helper

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-08-16 18:57:05 -07:00
parent 3ee9f2c18c
commit e95481db21
2 changed files with 17 additions and 1 deletions
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1
gpu/README.md
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@ -176,6 +176,7 @@ And, to initialize data structures with slices in them, the following helpers ar
* `Texture.Descriptor.init` * `Texture.Descriptor.init`
* `ComputePassDescriptor.init` * `ComputePassDescriptor.init`
* `RenderPassDescriptor.init` * `RenderPassDescriptor.init`
* `ProgrammableStageDescriptor.init`
### Typed callbacks ### Typed callbacks

17
gpu/src/types.zig
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@ -655,9 +655,24 @@ pub const ProgrammableStageDescriptor = extern struct {
next_in_chain: ?*const ChainedStruct = null, next_in_chain: ?*const ChainedStruct = null,
module: *ShaderModule, module: *ShaderModule,
entry_point: [*:0]const u8, entry_point: [*:0]const u8,
// TODO: slice helper
constant_count: u32 = 0, constant_count: u32 = 0,
constants: ?[*]const ConstantEntry = null, constants: ?[*]const ConstantEntry = null,
/// Provides a slightly friendlier Zig API to initialize this structure.
pub inline fn init(v: struct {
next_in_chain: ?*const ChainedStruct = null,
module: *ShaderModule,
entry_point: [*:0]const u8,
constants: ?[]const ConstantEntry = null,
}) ComputePassDescriptor {
return .{
.next_in_chain = v.next_in_chain,
.module = v.module,
.entry_point = v.entry_point,
.constant_count = if (v.timestamp_writes) |e| @intCast(u32, e.len) else 0,
.constants = if (v.constants) |e| e.ptr else null,
};
}
}; };
pub const RenderPassColorAttachment = extern struct { pub const RenderPassColorAttachment = extern struct {