Read-only storage textures should be allowed without a feature

[jimblandy]

Shouldn't this pass?

use std::borrow::Cow;

use wgpu_test::{gpu_test, GpuTestConfiguration, TestingContext, TestParameters};

#[gpu_test]
static READ_ONLY_STORAGE_TEXTURE: GpuTestConfiguration =
    GpuTestConfiguration::new()
    .parameters(
        TestParameters::default()
            .test_features_limits()
    )
    .run_async(read_only_storage_texture);

async fn read_only_storage_texture(ctx: TestingContext) {
    let label = Some("read_only_storage_texture");
    let module = ctx.device.create_shader_module(wgpu::ShaderModuleDescriptor {
        label,
        source: wgpu::ShaderSource::Wgsl(Cow::Borrowed(r#"
            @group(0) @binding(0) var s: texture_storage_2d<rg32float, read>;
            @compute @workgroup_size(1) fn csWithStorageUsage() {
                _ = textureLoad(s, vec2u(0));
            }
        "#)),
    });

    let _ = ctx.device.create_compute_pipeline(&wgpu::ComputePipelineDescriptor {
        label,
        layout: None,
        module: &module,
        entry_point: Some("csWithStorageUsage"),
        compilation_options: wgpu::PipelineCompilationOptions::default(),
        cache: None,
    });
}

[jimblandy]

Here's the error:

wgpu error: Validation Error

Caused by:
  In Device::create_compute_pipeline, label = 'read_only_storage_texture'
    Unable to derive an implicit layout
      Binding 0 entry is invalid
        Read-write and read-only storage textures are not allowed by webgpu, they require the
        native only feature TEXTURE_ADAPTER_SPECIFIC_FORMAT_FEATURES