Revert "'maxStorageBuffersInFragmentStage' and 'maxStorageBuffersInVertexStage' aren't (#4448)" (#4521)

This reverts commit b500efd.

Compatibility mode is now part of the spec.
These limits are now required on all devices.

Author: greggman

src/webgpu/api/operation/adapter/requestDevice.spec.ts

@@ -279,6 +279,20 @@ g.test('limits,supported')
 
     const requiredLimits: Record<string, number | undefined> = { [limit]: value };
 
+    if (
+      limit === 'maxStorageBuffersInFragmentStage' ||
+      limit === 'maxStorageBuffersInVertexStage'
+    ) {
+      requiredLimits['maxStorageBuffersPerShaderStage'] = value;
+    }
+
+    if (
+      limit === 'maxStorageTexturesInFragmentStage' ||
+      limit === 'maxStorageTexturesInVertexStage'
+    ) {
+      requiredLimits['maxStorageTexturesPerShaderStage'] = value;
+    }
+
     const device = await t.requestDeviceTracked(adapter, { requiredLimits });
     assert(device !== null);
     t.expect(

src/webgpu/capability_info.ts

@@ -402,12 +402,12 @@ export const kPerStageBindingLimits: {
 } =
   /* prettier-ignore */ {
   'uniformBuf':          { class: 'uniformBuf', maxLimits: { COMPUTE: 'maxUniformBuffersPerShaderStage', FRAGMENT: 'maxUniformBuffersPerShaderStage', VERTEX: 'maxUniformBuffersPerShaderStage' } },
-  'storageBuf':          { class: 'storageBuf', maxLimits: { COMPUTE: 'maxStorageBuffersPerShaderStage', FRAGMENT: 'maxStorageBuffersPerShaderStage', VERTEX: 'maxStorageBuffersPerShaderStage' } },
+  'storageBuf':          { class: 'storageBuf', maxLimits: { COMPUTE: 'maxStorageBuffersPerShaderStage', FRAGMENT: 'maxStorageBuffersInFragmentStage', VERTEX: 'maxStorageBuffersInVertexStage' } },
   'sampler':             { class: 'sampler',    maxLimits: { COMPUTE: 'maxSamplersPerShaderStage', FRAGMENT: 'maxSamplersPerShaderStage', VERTEX: 'maxSamplersPerShaderStage' } },
   'sampledTex':          { class: 'sampledTex', maxLimits: { COMPUTE: 'maxSampledTexturesPerShaderStage', FRAGMENT: 'maxSampledTexturesPerShaderStage', VERTEX: 'maxSampledTexturesPerShaderStage' } },
-  'readonlyStorageTex':  { class: 'readonlyStorageTex', maxLimits: { COMPUTE: 'maxStorageTexturesPerShaderStage', FRAGMENT: 'maxStorageTexturesPerShaderStage', VERTEX: 'maxStorageTexturesPerShaderStage' } },
-  'writeonlyStorageTex': { class: 'writeonlyStorageTex', maxLimits: { COMPUTE: 'maxStorageTexturesPerShaderStage', FRAGMENT: 'maxStorageTexturesPerShaderStage', VERTEX: 'maxStorageTexturesPerShaderStage' } },
-  'readwriteStorageTex': { class: 'readwriteStorageTex', maxLimits: { COMPUTE: 'maxStorageTexturesPerShaderStage', FRAGMENT: 'maxStorageTexturesPerShaderStage', VERTEX: 'maxStorageTexturesPerShaderStage'} },
+  'readonlyStorageTex':  { class: 'readonlyStorageTex', maxLimits: { COMPUTE: 'maxStorageTexturesPerShaderStage', FRAGMENT: 'maxStorageTexturesInFragmentStage', VERTEX: 'maxStorageTexturesInVertexStage' } },
+  'writeonlyStorageTex': { class: 'writeonlyStorageTex', maxLimits: { COMPUTE: 'maxStorageTexturesPerShaderStage', FRAGMENT: 'maxStorageTexturesInFragmentStage', VERTEX: 'maxStorageTexturesInVertexStage' } },
+  'readwriteStorageTex': { class: 'readwriteStorageTex', maxLimits: { COMPUTE: 'maxStorageTexturesPerShaderStage', FRAGMENT: 'maxStorageTexturesInFragmentStage', VERTEX: 'maxStorageTexturesInVertexStage'} },
 };
 
 /**