llvm / llvm/offload-test-suite

[SPIRV][DirectX] Add `FeedbackTexture` support

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Dominant language
C++
Stars
18
Forks
39
Avg merge
2d 18h
Merged PRs (30d)
40

Description

Required for testing of sampler feedback operations (`WriteSamplerFeedback`, `WriteSamplerFeedbackLevel`) using FeedbackTexture2D and FeedbackTexture2DArray resources.

Current Status: No feedback texture infrastructure exists. IIUC, Vulkan does not have any extension support for sampler feedback.

The first step will be to refine the following acceptance criteria for refinement/estimation. It will also establish a plan (or lack of) for this functionality with SPIRV.

AC:
- [ ] Query for `SamplerFeedbackTier`
- [ ] Define the `FeedbackTexture2D` / `FeedbackTexture2DArray` resource kinds
- [ ] Allow YAML test config to initialize a texture of this sort
- [ ] DX: Add a function to create the feedback resource
- [ ] DX: Implement feedback texture readback
- [ ] VK: TBD
- [ ] Add independent testing of functionality

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no files or tests. Start by refining the acceptance criteria around SamplerFeedbackTier, feedback texture resource kinds, YAML initialization, DirectX creation and readback, Vulkan status, and independent testing; done means an agreed implementation plan or an explicit decision that the functionality is not currently feasible.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-graphics, testing-qa
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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