KhronosGroup / KhronosGroup/Vulkan-Portability

Add VkPhysicalDevicePortabilitySubsetFeaturesKHR:: subpassDependencyLateFragmentTests capability

Open
#45 2 comments 0 reactions 0 assignees View on GitHub
CTS
Dominant language
No language data
Stars
45
Forks
7
PR merge metrics
No merged PRs in 30d

Description

Some CTS tests fail with subpass dependencies that depend on late fragment depth testing.

This might be fixable with effort within the implementations.

In the meantime, these use cases can be disabled in CTS and reported as Not Supported, by adding a `VkPhysicalDevicePortabilitySubsetFeaturesKHR:: subpassDependencyLateFragmentTests` capability.

This affects 9 CTS tests:

```
dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.render_size_32_32.subpass_count_2.d32_sfloat_s8_uint
dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.render_size_32_32.subpass_count_3.d32_sfloat_s8_uint
dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.render_size_32_32.subpass_count_5.d32_sfloat_s8_uint
dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.render_size_32_32.subpass_count_5.d32_sfloat_s8_uint
dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.render_size_64_64.subpass_count_3.d32_sfloat_s8_uint
dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.render_size_64_64.subpass_count_5.d32_sfloat_s8_uint
dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.render_size_128_128.subpass_count_2.d32_sfloat_s8_uint
dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.render_size_128_128.subpass_count_3.d32_sfloat_s8_uint
dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.render_size_128_128.subpass_count_5.d32_sfloat_s8_uint
Fail (Depth compare failed.)
```

Contributor guide

No contributing guide indexed for this repository

Research direction

Search the repository for existing VkPhysicalDevicePortabilitySubsetFeaturesKHR capabilities and the listed late_fragment_tests CTS names. Trace how capabilities cause CTS cases to be reported as Not Supported, then add subpassDependencyLateFragmentTests consistently and verify the nine affected tests receive that status.

Written by the indexing model from the issue text.

Assessment

Domain
testing-qa
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.