mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-08-02 18:25:56 +00:00
009d129103
Transform any SPIR-V that has an array with a custom stride:
@stride(S) array<T, N>
into:
struct strided_arr {
@size(S) er : T;
};
array<strided_arr, N>
Also remove any @stride decorations that match the default array stride.
Bug: tint:1394
Bug: tint:1381
Change-Id: I8be8f3a76c5335fdb2bc5183388366091dbc7642
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78781
Reviewed-by: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
30 lines
626 B
WebGPU Shading Language
30 lines
626 B
WebGPU Shading Language
struct strided_arr {
|
|
@size(16)
|
|
el : vec2<f32>;
|
|
}
|
|
|
|
struct SSBO {
|
|
m : array<strided_arr, 2u>;
|
|
}
|
|
|
|
@group(0) @binding(0) var<storage, read_write> ssbo : SSBO;
|
|
|
|
fn arr_to_mat2x2_stride_16(arr : array<strided_arr, 2u>) -> mat2x2<f32> {
|
|
return mat2x2<f32>(arr[0u].el, arr[1u].el);
|
|
}
|
|
|
|
fn mat2x2_stride_16_to_arr(mat : mat2x2<f32>) -> array<strided_arr, 2u> {
|
|
return array<strided_arr, 2u>(strided_arr(mat[0u]), strided_arr(mat[1u]));
|
|
}
|
|
|
|
fn f_1() {
|
|
let x_15 : mat2x2<f32> = arr_to_mat2x2_stride_16(ssbo.m);
|
|
ssbo.m = mat2x2_stride_16_to_arr(x_15);
|
|
return;
|
|
}
|
|
|
|
@stage(compute) @workgroup_size(1, 1, 1)
|
|
fn f() {
|
|
f_1();
|
|
}
|