From d67544797e54d3866f378c2a7c05181db552f125 Mon Sep 17 00:00:00 2001
From: Stephen White <senorblanco@chromium.org>
Date: Tue, 23 Feb 2021 20:30:39 +0000
Subject: [PATCH] Fix the ComputeBoids sample on the OpenGL backend.

Having the [[block]] decorator on the nested Particle struct causes
SPIRV-Cross to not emit it (see bug). Removing the decorator from
the Particle while leaving it on the top-level struct works fine.

This fixes the issue, but validation should be added to Tint
to catch the problem (this work is tracked in https://bugs.chromium.org/p/tint/issues/detail?id=320).

Bug: dawn:611
Change-Id: I8bef811e314ed758f805247977f8b129477abd39
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/42300
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Stephen White <senorblanco@chromium.org>
---
 examples/ComputeBoids.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/ComputeBoids.cpp b/examples/ComputeBoids.cpp
index c8f4f9d55f..cb437d9911 100644
--- a/examples/ComputeBoids.cpp
+++ b/examples/ComputeBoids.cpp
@@ -150,7 +150,7 @@ void initRender() {
 
 void initSim() {
     wgpu::ShaderModule module = utils::CreateShaderModuleFromWGSL(device, R"(
-        [[block]] struct Particle {
+        struct Particle {
             [[offset(0)]] pos : vec2<f32>;
             [[offset(8)]] vel : vec2<f32>;
         };