Texture compression unaligned

[castano]

Issue: #2006

Add tests to support the proposed 'texture-compression-unaligned' feature. gpuweb/gpuweb#6312

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Requirements for PR author:

• All missing test coverage is tracked with "TODO" or .unimplemented().
• New helpers are /** documented */ and new helper files are found in helper_index.txt.
• Test behaves as expected in a WebGPU implementation. (If not passing, explain above.)
• Test have be tested with compatibility mode validation enabled and behave as expected. (If not passing, explain above.)

Requirements for reviewer sign-off:

• Tests are properly located.
• Test descriptions are accurate and complete.
• Tests provide complete coverage (including validation control cases). Missing coverage MUST be covered by TODOs.
• Tests avoid over-parameterization (see case count report).

When landing this PR, be sure to make any necessary issue status updates.

[github-actions]

Waiting for build job (at 520249e)...

[Kangz]

I tried this locally and the test fails somehow then 'texture-compression-unaligned' is available. I think we should have the test parametrized on requesting the feature (if present) vs not.

I tested on macOS with this WIP Dawn patch using dawn.node to run the CTS.

Here's the text of one failure:

webgpu:api,validation,createTexture:texture_size,3d_texture,compressed_format:format="bc1-rgba-unorm" - fail:
  - (in subcase: sizeVariant=[{"mult":1,"add":-1},{"mult":0,"add":1},{"mult":0,"add":1}]) VALIDATION FAILED: Validation succeeded unexpectedly.
        at AllFeaturesMaxLimitsGPUTest.eventualAsyncExpectation (/Users/cwallez/dev/cts/out-node/common/framework/fixture.js:217:28)
        at AllFeaturesMaxLimitsGPUTest.expectValidationError (/Users/cwallez/dev/cts/out-node/webgpu/gpu_test.js:839:18)
        at RunCaseSpecific.fn (/Users/cwallez/dev/cts/out-node/webgpu/api/validation/createTexture.spec.js:839:7)
  - (in subcase: sizeVariant=[{"mult":1,"add":-1},{"mult":0,"add":1},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":1,"add":-4},{"mult":0,"add":1},{"mult":0,"add":1}]) VALIDATION FAILED: Validation succeeded unexpectedly.
        at AllFeaturesMaxLimitsGPUTest.eventualAsyncExpectation (/Users/cwallez/dev/cts/out-node/common/framework/fixture.js:217:28)
        at AllFeaturesMaxLimitsGPUTest.expectValidationError (/Users/cwallez/dev/cts/out-node/webgpu/gpu_test.js:839:18)
        at RunCaseSpecific.fn (/Users/cwallez/dev/cts/out-node/webgpu/api/validation/createTexture.spec.js:839:7)
  - (in subcase: sizeVariant=[{"mult":1,"add":-4},{"mult":0,"add":1},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":1,"add":-4},{"mult":0,"add":4},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":1,"add":0},{"mult":0,"add":1},{"mult":0,"add":1}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":1,"add":0},{"mult":0,"add":1},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":1,"add":0},{"mult":0,"add":4},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":1,"add":1},{"mult":0,"add":1},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":1,"add":4},{"mult":0,"add":1},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":1,"add":4},{"mult":0,"add":4},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":1,"add":-1},{"mult":0,"add":1}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":1,"add":-1},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":1,"add":-4},{"mult":0,"add":1}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":1,"add":-4},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":1,"add":-4},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":1,"add":0},{"mult":0,"add":1}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":1,"add":0},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":1,"add":0},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":1,"add":1},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":1,"add":4},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":1,"add":4},{"mult":0,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":1},{"mult":1,"add":-1}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":1},{"mult":1,"add":-1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":0,"add":1},{"mult":1,"add":-1}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":0,"add":1},{"mult":1,"add":-1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":4},{"mult":1,"add":-1}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":4},{"mult":1,"add":-1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":0,"add":4},{"mult":1,"add":-1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":1},{"mult":1,"add":0}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":1},{"mult":1,"add":0}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":0,"add":1},{"mult":1,"add":0}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":0,"add":1},{"mult":1,"add":0}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":4},{"mult":1,"add":0}]) VALIDATION FAILED: Validation succeeded unexpectedly.
      at (elided: only 2 shown)
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":4},{"mult":1,"add":0}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":0,"add":4},{"mult":1,"add":0}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":1},{"mult":1,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":0,"add":1},{"mult":1,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":1},{"mult":0,"add":4},{"mult":1,"add":1}]) INFO: subcase ran
  - (in subcase: sizeVariant=[{"mult":0,"add":4},{"mult":0,"add":4},{"mult":1,"add":1}]) INFO: subcase ran

[castano]

Thanks for testing this!

I think the fix is simply the same I used for the texture_size,2d_texture,compressed_format and texture_size,default_value_and_smallest_size,compressed_format tests, to change the expected result based on the presence of the extension. I'll apply the same fix to texture_size,3d_texture,compressed_format.

These tests run with AllFeaturesMaxLimitsGPUTest which always enables the unaligned feature (if available). That relaxes the constrain and changes the expected result of the tests.

This is why I added a dedicated test createTexture,unaligned_size that tests texture creation with texture-compression-unaligned enabled and disabled.

[castano]

Fix is checked in. Let me know if you run into any other issues!