Some functions in the wrapping test layer exported functions that are not necessary.
This caused some warnings in builds. Removing them fixes the warnings.
Enable /W4 errors on MSVC and fix all corresponding errors.
Refactor the CMakeLists.txt to allow for compiling with clang-cl. This required
figuring out that -Wall -Wextra mangle the set of warnings used. The solution
is to use /W4 instead when compiling with clang-cl on Windows.
Add "additive" environment variables for adding additional layer
paths or driver JSON files instead of replacing default ones.
Also, rename VK_ICD_FILENAMES to VK_DRIVER_FILES since we're trying
to remove references to ICDs because software driver implementations
of Vulkan aren't ICDs (but continue to support the old name as well).
Added documentation around these changes to reflect the new name and
the new variables.
The loader trampoline previously would query all devices every time
vkEnumeratePhysicalDevices was called.
To do this, it would make two calls every time:
- First, it would ignore the passed in user values
- Second, it would query the total number of available devices.
- Third, it would query the values for every available device
This resulted in layers reporting 2 vkEnumeratePhysicalDevices call for
every 1 the application made which could get very polluted in output.
It didn't break any functionality, just made things messy.
This change removes that behavior and adds a bunch of test cases to verify
nothing broke in the move.
We had tests that verified that instance and device extensions defined
in a layer had the non-null pointers returned from the corresponding
vkGetXXXProcAddr functions, but we weren't verifying that the functions
actually got called.
When handle wrapping is performed in a layer, the loader would provide the incorrect
instance handles after the recent handle validation changes. This was exposed by
RenderDoc.
Also add several tests to catch this case.
andrew0229