loader: Fix VK_KHR_surface_protected_capabilities

Loader is exposing VK_KHR_surface_protected_capabilities instance
extension support if one of the ICDs supports it.

An ICD, not supporting this extension, will not know about
VkSurfaceProtectedCapabilitiesKHR being passed as additional structure
to VkPhysicalDeviceSurfaceInfo2KHR in vulkan API
vkGetPhysicalDeviceSurfaceCapabilities2KHR().

Reset VkSurfaceProtectedCapabilitiesKHR.supportsProtected to false
always before calling vkGetPhysicalDeviceSurfaceCapabilities2KHR(). If
a particular ICD supports protected surfaces then it will set it
true.

An application will always receive either 1/0 in supportsProtected as
expected.

The issue got exposed through below CTS test failure on a Optimus windows
system with different ICDs versions, one supporting this extension and
another not supporting it.

- dEQP-VK.wsi.win32.surface.query_protected_capabilities
1 file changed
tree: 530a6e5f38e9d19734be0cd534ae041f25abb96a
  1. build-gn/
  2. cmake/
  3. external/
  4. loader/
  5. scripts/
  6. tests/
  7. .appveyor.yml
  8. .clang-format
  9. .cmake-format.py
  10. .gitattributes
  11. .gitignore
  12. .gn
  13. .travis.yml
  14. BUILD.gn
  15. BUILD.md
  16. CMakeLists.txt
  17. CODE_OF_CONDUCT.md
  18. CONTRIBUTING.md
  19. GOVERNANCE.md
  20. LICENSE.txt
  21. README.md
README.md

Vulkan Ecosystem Components

This project provides the Khronos official Vulkan ICD desktop loader for Windows, Linux, and MacOS.

CI Build Status

PlatformBuild Status
Linux/MacOSBuild Status
WindowsBuild status

Introduction

Vulkan is an explicit API, enabling direct control over how GPUs actually work. As such, Vulkan supports systems that have multiple GPUs, each running with a different driver, or ICD (Installable Client Driver). Vulkan also supports multiple global contexts (instances, in Vulkan terminology). The ICD loader is a library that is placed between a Vulkan application and any number of Vulkan drivers, in order to support multiple drivers and the instance-level functionality that works across these drivers. Additionally, the loader manages inserting Vulkan layer libraries, such as validation layers, between an application and the drivers.

This repository contains the Vulkan loader that is used for Linux, Windows, MacOS, and iOS. There is also a separate loader, maintained by Google, which is used on Android.

The following components are available in this repository:

Contact Information

Information for Developing or Contributing

Please see the CONTRIBUTING.md file in this repository for more details. Please see the GOVERNANCE.md file in this repository for repository management details.

How to Build and Run

BUILD.md Includes directions for building all components.

Architecture and interface information for the loader is in loader/LoaderAndLayerInterface.md.

Version Tagging Scheme

Updates to the Vulkan-Loader repository which correspond to a new Vulkan specification release are tagged using the following format: v<version> (e.g., v1.1.96).

Note: Marked version releases have undergone thorough testing but do not imply the same quality level as SDK tags. SDK tags follow the sdk-<version>.<patch> format (e.g., sdk-1.1.92.0).

This scheme was adopted following the 1.1.96 Vulkan specification release.

License

This work is released as open source under a Apache-style license from Khronos including a Khronos copyright.

See COPYRIGHT.txt for a full list of licenses used in this repository.

Acknowledgements

While this project has been developed primarily by LunarG, Inc., there are many other companies and individuals making this possible: Valve Corporation, funding project development; Khronos providing oversight and hosting of the project.