Make it possible for layers to declare that they support unknown functions
and set up the layer dispatch table appropriately. A very niche use case
but helpful when developing validation for functions not yet out in the
public headers.
Many tests were using the V6 TestICD, which means that it exports the
EnumerateAdapterPhysicalDevices. The loader then only looks for devices
using that functionality and if the test didn't set it up, the driver
won't have its devices found.
Also:
* Cleaned up handle_validation_tests
* Added WSI setup helpers, which put all the setup code for WSI in one place
* Created a to/from_nondispatch_handle function for TestICD, probably should
be in a more general location
Test fixturing (TEST_F) is useful when there is a lot of common code that needs
to be run for a suite of tests. However, the FrameworkEnvironment encapsulates
almost all of the setup work all tests needs, and so doesn't need to be in a
fixture. Making the add_icd call inside the tests makes it clear which binary
is being used.
This commit also uses the corrent signed/unsigned constants in tests, as was
warned by compilers when enhanced warnings were enabled (/W4 in msvc).
Previously the way the test framework worked was to fake the registry using a
special windows API call. However this led to brittle tests and was incompatible
with googletest's death test capabilities.
These death tests highlighted that the current set of them didn't use the built in
matcher to verify a correct crash/abort. This commit also amends all uses of
ASSERT_DEATH to provide the relevant death message.
If a driver reports an interface version greater than 0 but doesn't export
vk_icdGetInstanceProcAddr, the loader will now skip the driver.
Add tests for unknown device functions queried with both vkGetDeviceProcAddr
and vkGetInstanceProcAddr. Also loops enough times to exhaust the available
unknown function supply.
Had to fix the vk_layerGetPhysicalDeviceProcAddr in TestLayer to make the tests
pass.
MacOS currently skips tests which use vkGetInstanceProcAddr. This is due to the
need for unknown functions being lower priority and so do not warrent the time
needed to write the assembly necessary to resolve the issue fully.
Move all the behavior found in child classes of FrameworkEnvironment to the
FrameworkEnvironment itself, allowing easier composibility of behavior. The
original idea was to allow special case behavior for specific test cases but
this resulted in a lot of code duplication and difficulty combining different
framework behavior, such as adding a fake ICD and setting VK_ICD_FILENAMES at
the same time.
ZhangLiang