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Migrate all tests over to using Default Struct Layout

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The WGSL spec has been updated with 'Default Struct Layouts':
https://github.com/gpuweb/gpuweb/pull/1447

This removes the `[[offset(n)]]` decoration, and replaces it with two optional decorations: `[[size(n)]]` and `[[align(n)]]`, and a sensible set of sizes and alignments for each type.

Most `[[stride(n)]]` decorations have also been removed from arrays.

Bug: tint:626
Bug: tint:629
Change-Id: Ib0d2741f61ea943e6fb99d00cbb5cab2f97ae7be
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/44280
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This commit is contained in:
Ben Clayton
2021-03-17 09:48:19 +00:00
committed by Commit Bot service account
parent 0008432827
commit c56868420d
34 changed files with 168 additions and 169 deletions
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22
examples/ComputeBoids.cpp
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@@ -151,21 +151,21 @@ void initRender() {
void initSim() {
wgpu::ShaderModule module = utils::CreateShaderModuleFromWGSL(device, R"(
struct Particle {
[[offset(0)]] pos : vec2<f32>;
[[offset(8)]] vel : vec2<f32>;
pos : vec2<f32>;
vel : vec2<f32>;
};
[[block]] struct SimParams {
[[offset(0)]] deltaT : f32;
[[offset(4)]] rule1Distance : f32;
[[offset(8)]] rule2Distance : f32;
[[offset(12)]] rule3Distance : f32;
[[offset(16)]] rule1Scale : f32;
[[offset(20)]] rule2Scale : f32;
[[offset(24)]] rule3Scale : f32;
[[offset(28)]] particleCount : u32;
deltaT : f32;
rule1Distance : f32;
rule2Distance : f32;
rule3Distance : f32;
rule1Scale : f32;
rule2Scale : f32;
rule3Scale : f32;
particleCount : u32;
};
[[block]] struct Particles {
[[offset(0)]] particles : [[stride(16)]] array<Particle>;
particles : array<Particle>;
};
[[binding(0), group(0)]] var<uniform> params : SimParams;
[[binding(1), group(0)]] var<storage_buffer> particlesA : [[access(read)]] Particles;