This document describes how to build and run Vulkan Conformance Test suite.
Vulkan CTS is built on dEQP framework. dEQP documentation is available at http://source.android.com/devices/graphics/testing.html
android/scripts/common.py for a list locations where the build system expects to find these.
To build dEQP, you need first to download sources for zlib, libpng, glslang, and spirv-tools.
To download sources, run:
You may need to re-run
fetch_sources.py to update to the latest glslang and spirv-tools revisions occasionally.
With CMake out-of-source builds are always recommended. Create a build directory of your choosing, and in that directory generate Makefiles or IDE project using cmake.
cmake <path to vulkancts> -G"Visual Studio 12" start dEQP-Core-default.sln
cmake <path to vulkancts> -G"Visual Studio 12 Win64" start dEQP-Core-default.sln
cmake <path to vulkancts> -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_FLAGS=-m32 -DCMAKE_CXX_FLAGS=-m32 make -j
Release build can be done by using -DCMAKE_BUILD_TYPE=Release
cmake <path to vulkancts> -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_FLAGS=-m64 -DCMAKE_CXX_FLAGS=-m64 make -j
Following command will build CTS into android/package/bin/dEQP-debug.apk.
The package can be installed by either running:
By default the CTS package will contain libdeqp.so built for armeabi-v7a, arm64-v8a, and x86 ABIs, but that can be changed in android/scripts/common.py script.
To pick which ABI to use at install time, following commands must be used instead:
adb install --abi <ABI name> android/package/bin/dEQP-debug.apk /data/local/tmp/dEQP-debug.apk
Current mustpass is checked into repository and can be found at:
Vulkan CTS mustpass can be re-generated by running:
For distribution, and platforms that don't support GLSL to SPIR-V compilation, SPIR-V binaries can be pre-built with following command:
Binaries will be written to
Test modules (or in case of Android, the APK) must be re-built after building SPIR-V programs in order for the binaries to be available.
Following command line options MUST be used when running CTS:
--deqp-caselist-file=<vulkancts>/external/vulkancts/mustpass/1.0.2/vk-default.txt --deqp-log-images=disable --deqp-log-shader-sources=disable
In addition on multi-device systems the device for which conformance is claimed can be selected with:
To speed up the conformance run on some platforms the following command line option may be used to disable frequent fflush() calls to the output logs:
By default, the test log will be written into the path “TestResults.qpa”. If the platform requires a different path, it can be specified with:
No other command line options are allowed.
cd <builddir>/external/vulkancts/modules/vulkan Debug/deqp-vk.exe --deqp-caselist-file=...
Test log will be written into TestResults.qpa
cd <builddir>/external/vulkancts/modules/vulkan ./deqp-vk --deqp-vk-caselist-file=...
adb push <vulkancts>/external/vulkancts/mustpass/1.0.2/vk-default.txt /sdcard/vk-default.txt adb shell
In device shell:
am start -n com.drawelements.deqp/android.app.NativeActivity -e cmdLine "deqp --deqp-caselist-file=/sdcard/vk-default.txt --deqp-log-images=disable --deqp-log-shader-sources=disable --deqp-log-filename=/sdcard/TestResults.qpa"
Test progress will be written to device log and can be displayed with:
adb logcat -s dEQP
Test log will be written into
The conformance submission package must contain the following:
TestResults.qpa) from CTS runs against all driver builds
git logfrom CTS source directory
Test logs (1) should be named
<submission pkg dir>/TestResults-<driver build type>.qpa, for example
TestResults-armeabi-v7a.qpa. On platforms where multiple different driver builds (for example 64-bit and 32-bit) are present, CTS logs must be provided for each driver build as part of the submission package.
The CTS build must always be done from clean git repository that doesn't have any uncommitted changes. Thus it is necessary to run and capture output of
git status and
git log (2) in the source directory:
git status > <submission pkg dir>/git-status.txt git log --first-parent <release tag>^..HEAD > <submission pkg dir>/git-log.txt
Any changes made to CTS must be committed to the local repository, and provided as part of the submission package (3). This can be done by running:
git format-patch -o <submission pkg dir> <release tag>..HEAD
In general, bugfixes and changes to platform-specific code (mostly under
framework/platform) are allowed. The commit message for each change must include a clear description of the change and why it is necessary. Non-porting related changes must be accompanied by a waiver (see below).
NOTE: When cherry-picking patches on top of release tag, please use
git cherry-pick -x to include original commit hash in the commit message.
Conformance statement (4) must be included in a file called
STATEMENT-<adopter> and must contain following:
CONFORM_VERSION: <git tag of CTS release> PRODUCT: <string-value> CPU: <string-value> OS: <string-value>
Note that product/cpu/os information is also captured in
dEQP-VK.info.* tests if
vk::Platform::describePlatform() is implemented.
If the submission package covers multiple products, you can list them by appending additional
PRODUCT: lines to the conformance statement. For example:
CONFORM_VERSION: vulkan-cts-188.8.131.52 PRODUCT: Product A PRODUCT: Product B ...
The actual submission package consists of the above set of files which must be bundled into a gzipped tar file named
<adopter> is the name of the Adopting member company, or some recognizable abbreviation. The
<_info> field is optional. It may be used to uniquely identify a submission by OS, platform, date, or other criteria when making multiple submissions.
One way to create a suiteable gzipped tar file is to execute the command:
tar -cvzf <filename.tgz> -C <submission pkg dir> .
<submission pkg dir> is the directory containing the files from (1)-(4) from above. A submission package must contain all of the files listed above, and only those files.
As an example submission package could contain:
STATEMENT-Khronos git-log.txt git-status.txt 0001-Remove-Waived-Filtering-Tests.patch 0002-Fix-Pipeline-Parameters.patch TestResults-armeabi-v7a.qpa TestResults-arm64-v8a.qpa
The process for requesting a waiver is to report the issue by filing a bug report in the Gitlab VulkanCTS project (TODO Github?). When creating the submission package, include references to the waiver in the commit message of the relevant change. Including as much information as possible in your bug report (including a unified diff or a merge request of suggested file changes) will ensure the issue can be progressed as rapidly as possible. Issues must be labeled “Waiver” (TODO!) and identify the version of the CTS and affected tests.
Conformance run is considered passing if all tests finish with allowed result codes. Test results are contained in the TestResults.qpa log. Each test case section contains XML tag Result, for example:
<Result StatusCode="Pass">Not validated</Result>
The result code is the value of the StatusCode attribute. Following status codes are allowed:
Pass NotSupported QualityWarning CompatibilityWarning
Submission package can be verified using
external/vulkancts/scripts/verify_submission.py script. The script takes two arguments: path to extracted submission package and path to current mustpass list. For example:
python external/vulkancts/scripts/verify_submission.py VK_10_Khronos_1/ external/vulkancts/mustpass/1.0.2/vk-default.txt
Vulkan support from Platform implementation requires providing
getVulkanPlatform() method in
tcu::Platform class implementation.
framework/common/tcuPlatform.hpp and examples in
If any WSI extensions are supported, platform port must also implement methods for creating native display (
vk::Platform::createWsiDisplay) and window handles (
vk::wsi::Display::createWindow). Otherwise tests under
dEQP-VK.wsi will fail.
For testing and development purposes it might be useful to be able to run tests on dummy Vulkan implementation. One such implementation is provided in vkNullDriver.cpp. To use that, implement
Vulkan CTS framework includes first-party support for validation layers, that can be turned on with
--deqp-validation=enable command line option.
When validation is turned on, default instance and device will be created with validation layers enabled and debug callback is registered to record any messages. Debug messages collected during test execution will be included at the end of the test case log.
If any validation errors are found, test result will be set to
_DEBUG_BIT_EXT messages are excluded from the log, but that can be customized by modifying
Vulkan test module can be used with Cherry (GUI for test execution and analysis). Cherry is available at https://android.googlesource.com/platform/external/cherry. Please follow instructions in README to get started.
Before first launch, and every time test hierarchy has been modified, test case list must be refreshed by running:
python scripts/build_caselists.py path/to/cherry/data
Cherry must be restarted for the case list update to take effect.