Intel(R) GPA Framework provides a number of samples to demonstrate usage of specific features.
Samples can be built on any user writable folder.
Visual Studio* 2017 or 2019 (64-bit)
Windows 10 SDK (10.0.19041.0) for Desktop C++
Vulkan* SDK (1.2.148)
To setup build environment, use the following command (for Visual Studio 2017):
cmake -G "Visual Studio 15 2017 Win64" "%INTEL_GPA_FRAMEWORK%\samples"
To setup a Visual Studio 2019 build environment, use the following command:
cmake -Ax64 "%INTEL_GPA_FRAMEWORK%\samples"
As GPA Framework installs by default to a location with elevated privileges (for example,
C:\Program Files on Windows), you may wish to build the samples “out of tree”. To do this,
create a directory in a location of your choice, change to that directory, and run one of
the commands above.
To build samples, execute the following command:
cmake --build . --config Release
The Release configuration is required to be specified because at this time, we do not distribute Debug binaries for any platform, and links will fail if you try to link a Debug build to the GPA Framework release-mode libraries.
You may also wish to “install” the samples to a directory tree, rather than run them from the
build tree. For this, you can add the CMake
CMAKE_INSTALL_PREFIX define to one of the commands
above. For example, for Visual Studio 2019,
cmake -Ax64 -DCMAKE_INSTALL_PREFIX="%cd%\install" "%INTEL_GPA_FRAMEWORK%\samples"
which will install all samples to an
install directory in the build root, when you specify
the “install” target to the build command:
cmake --build . --config Release --target install
gpa-env-vars.bat before launching the samples to setup the appropriate environment:
Print API Log
To use the
ApiLog class to extract API log information from previously captured stream data, do the following:
Create a Stream object and use it to open a data source (captured data directory).
ApiLogobject using the Stream instance.
ApiLogobject for “ranges”. The time required for the operation depends on the number of calls captured in total across all captured threads.
For Vulkan*, frame boundaries are typical, such as `vkQueuePresentKHR <https://www.khronos.org/registry/vulkan/specs/1.1-extensions/man/html/vkQueuePresentKHR.html>`. For Metal*, various Present methods in D3D and presentDrawable are used.
Access one of the ranges (frames) by zero-based index within the range count returned from
(Optional) Sort the range by timestamp. This step is not usually required, because the range is already returned in timestamp order. But this part of the sample shows how to rearrange the returned
CallableCacheaccording to user preferencies.
Enumerate the callables in the
CallableCacheand perform the required work for each callable.
For more details, see the sample.
‘Helloworld’ Simple Layer
The sample shows the basic requirements for a Intel(R) GPA Framework compatible layer. This layer emits a message at GPA_TRACE when any present API call is made to Metal*, Vulkan*, or DirectX*.
‘Helloworld’ Generated Layer
The sample functionaly replicates the default Logging layer. The sample demonstrates the code generation and templating system built into the Intel(R) GPA Framework. Output is at the GPA_TRACE level. To see the output, use the argument -v trace from the command line at run.
Range playback is one of the core functionalities of the Intel(R) GPA Framework. Understanding the mechanics is a prerequisite for all extraction and experiment samples relying on it. The sample demonstrates the range playback capabilities by allowing a particular range within a capture to be played back repeatedly.
The sample shows basic buffer extraction. This sample uses
MetadataExtractor class to extract information from a given buffer. It also shows how to use
ResourceDataResult to extract the buffer data content.
The sample shows basic texture extraction. This sample uses
MetadataExtractorEx class to extract information from a given texture. It also shows how to use
ResourceExtractor::Result to extract the texture data content that can be subsequently parsed and visualized appropriately.
The sample demonstrates the usage of
MetadataExtractor to extract sampler information from resources bound to a given event. It also demonstrates the usage of
MetadataExtractor.GetResourceBindingsAtIndex to extract binding information, such as input and output resources with
Disable Call in Range
This sample demonstrates how to selectively disable API calls during the range playback. Use the capability to determine the impact of removing a call’s execution on the frame’s execution time or the final rendered result.
This sample demonstrates how to use the Intel(R) GPA Framework to collect performance metrics from graphics calls. It requires a captured stream and frame of interest to be passed in via the command line. The sample first determines a set of collection ranges that span as many graphics calls in the frame as possible, and then collects and prints out the available metrics for all of those ranges.
This sample demonstrates usage of the
SimpleFragmentShaderExperiment interface by replicating the highlighting experiment within Intel®GPA.
This sample demonstrates usage of the
PipelineExperiment interface by replicating the wireframe experiment within Intel®GPA.
Texture Replacement Experiments
The sample demonstrates usage of the
TwoByTwoTextureReplacementExperiment interface by replicating the wireframe experiment within Intel®GPA. It also demonstrates how to use the
ResourceExperiment to replace a texture with an arbitrary buffer.
Advanced Stream Playback
The sample is a low-level demonstration of the Intel(R) GPA Framework playback classes.
main.cpp functionality is identical to the Print API Log sample.
main2.cpp implements low-level Range Repeat, for example, repeated frame playback for metrics collection.