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Flicking through the article made me wonder - would it be possible to have something like ACID tests for OpenGL?

by d33 10y ago

cmrx64 10y ago
https://people.freedesktop.org/~nh/piglit/ https://people.freedesktop.org/~nh/piglit/ is an extensive open conformance test suite for opengl. Khronos has their own (https://github.com/KhronosGroup/VK-GL-CTS https://github.com/KhronosGroup/VK-GL-CTS, used to be proprietary), but judging by the amount of bugs and piglit failures in drivers which supposedly pass it, I think it's probably not very useful.
- andromeduck 10y ago
  Yup and Google has dEQP for android
  - cmrx64 10y ago
    dEQP seems to be included in Khronos', judging by a quick glance at the code and the READMEs.
- nhaehnle 10y ago
  Be aware that the open-source GL tests in vk-gl-cts still contain quite a lot of bugs from porting from the old framework that was used in proprietary test suite releases. Piglit isn't really a conformance test suite. It is a test suite, is usually extended when people add new features to Mesa, and collects regression tests over time. However, it actually started out in part as a way to modify glean tests that drivers couldn't pass because the hardware was lacking, for example, hardware didn't have enough precision in the blender... those were the days. The p in piglit stands for your choice of pragmatic or practical. I'm not sure if that's actually documented anywhere, but as the original author, I should know ;-) I'm sure piglit has bugs, but it's also well known that certain closed source drivers have less than conformant GLSL compilers, for example - so the fact that drivers passing the Khronos conformance tests fail piglit tests in itself doesn't mean anything other than shit needs investigating, and occasionally needs spec clarifications.
  - cmrx64 10y ago
    Fair enough, and good to hear from you :) piglit made my life better when I was doing mesa work.
Animats 10y ago
There was a pixel-accurate test suite for OpenGL 1,0 from Kronos,[1] but it predates programmable shaders. It tests the geometry and texture processing. It's not free. [1] https://www.khronos.org/opengl/adopters/ https://www.khronos.org/opengl/adopters/

Flicking through the article made me wonder - would it be possible to have something like ACID tests for OpenGL?

by d33 10y ago

Flicking through the article made me wonder - would it be possible to have something like ACID tests for OpenGL?

https://people.freedesktop.org/~nh/piglit/ https://people.freedesktop.org/~nh/piglit/ is an extensive open conformance test suite for opengl. Khronos has their own (https://github.com/KhronosGroup/VK-GL-CTS https://github.com/KhronosGroup/VK-GL-CTS, used to be proprietary), but judging by the amount of bugs and piglit failures in drivers which supposedly pass it, I think it's probably not very useful.

andromeduck 10y ago
Yup and Google has dEQP for android
- cmrx64 10y ago
  dEQP seems to be included in Khronos', judging by a quick glance at the code and the READMEs.
nhaehnle 10y ago
Be aware that the open-source GL tests in vk-gl-cts still contain quite a lot of bugs from porting from the old framework that was used in proprietary test suite releases. Piglit isn't really a conformance test suite. It is a test suite, is usually extended when people add new features to Mesa, and collects regression tests over time. However, it actually started out in part as a way to modify glean tests that drivers couldn't pass because the hardware was lacking, for example, hardware didn't have enough precision in the blender... those were the days. The p in piglit stands for your choice of pragmatic or practical. I'm not sure if that's actually documented anywhere, but as the original author, I should know ;-) I'm sure piglit has bugs, but it's also well known that certain closed source drivers have less than conformant GLSL compilers, for example - so the fact that drivers passing the Khronos conformance tests fail piglit tests in itself doesn't mean anything other than shit needs investigating, and occasionally needs spec clarifications.
- cmrx64 10y ago
  Fair enough, and good to hear from you :) piglit made my life better when I was doing mesa work.

Animats 10y ago

There was a pixel-accurate test suite for OpenGL 1,0 from Kronos,[1] but it predates programmable shaders. It tests the geometry and texture processing. It's not free. [1] https://www.khronos.org/opengl/adopters/ https://www.khronos.org/opengl/adopters/