From 9e485bdb1df7cd13d0738b6a57597e92eb431bbd Mon Sep 17 00:00:00 2001
From: Jinlei Li <jinleili0@outlook.com>
Date: Tue, 29 Nov 2022 14:24:46 +0800
Subject: [PATCH] Set `VIEW_FORMATS` downlevel_flag for test

---
 wgpu-core/src/device/mod.rs          | 14 +++++++++-----
 wgpu-core/src/resource.rs            |  2 ++
 wgpu/tests/shader_view_format/mod.rs |  7 +++++--
 3 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/wgpu-core/src/device/mod.rs b/wgpu-core/src/device/mod.rs
index f5e4af90f08..37b2f0f723d 100644
--- a/wgpu-core/src/device/mod.rs
+++ b/wgpu-core/src/device/mod.rs
@@ -1092,11 +1092,15 @@ impl<A: HalApi> Device<A> {
             extent.depth_or_array_layers = view_layer_count;
         }
         let format = desc.format.unwrap_or(texture.desc.format);
-        if format != texture.desc.format && !texture.desc.view_formats.contains(&format) {
-            return Err(resource::CreateTextureViewError::FormatReinterpretation {
-                texture: texture.desc.format,
-                view: format,
-            });
+        if format != texture.desc.format {
+            if texture.desc.view_formats.contains(&format) {
+                self.require_downlevel_flags(wgt::DownlevelFlags::VIEW_FORMATS)?;
+            } else {
+                return Err(resource::CreateTextureViewError::FormatReinterpretation {
+                    texture: texture.desc.format,
+                    view: format,
+                });
+            }
         }
 
         // filter the usages based on the other criteria
diff --git a/wgpu-core/src/resource.rs b/wgpu-core/src/resource.rs
index 0c6a792f6c7..2c89f1b8ca7 100644
--- a/wgpu-core/src/resource.rs
+++ b/wgpu-core/src/resource.rs
@@ -628,6 +628,8 @@ pub enum CreateTextureViewError {
         texture: wgt::TextureFormat,
         view: wgt::TextureFormat,
     },
+    #[error(transparent)]
+    MissingDownlevelFlags(#[from] MissingDownlevelFlags),
 }
 
 #[derive(Clone, Debug, Error)]
diff --git a/wgpu/tests/shader_view_format/mod.rs b/wgpu/tests/shader_view_format/mod.rs
index 49df0b5df72..f82f8851cfd 100644
--- a/wgpu/tests/shader_view_format/mod.rs
+++ b/wgpu/tests/shader_view_format/mod.rs
@@ -1,10 +1,13 @@
 use crate::common::{image::calc_difference, initialize_test, TestParameters, TestingContext};
 use std::num::NonZeroU32;
-use wgpu::{util::DeviceExt, TextureFormat};
+use wgpu::{util::DeviceExt, DownlevelFlags, Limits, TextureFormat};
 
 #[test]
 fn reinterpret_srgb_ness() {
-    let parameters = TestParameters::default();
+    let parameters = TestParameters::default()
+        .downlevel_flags(DownlevelFlags::VIEW_FORMATS)
+        .limits(Limits::downlevel_defaults())
+        .specific_failure(Some(wgpu::Backends::GL), None, None, true);
     initialize_test(parameters, |ctx| {
         let unorm_data: [[u8; 4]; 4] = [
             [180, 0, 0, 255],