Samuel Iglesias

Grado (Spain)

Joined Igalia in April 2012

Latest Updates

Samuel Iglesias 12/06/2015

piglit (V): how to contribute to piglit and table of contents

Last post and the one before were about how to create your own piglit tests. Previously, I have written an introduction to piglit and how to launch a tailored piglit run (more details about these last two topics in my FOSDEM 2015 talk). Now it’s...

Samuel Iglesias 12/06/2015

piglit (V): how to contribute to piglit and table of contents

Last post and the one before were about how to create your own piglit tests. Previously, I have written an introduction to piglit and how to launch a tailored piglit run (more details about these last two topics in my FOSDEM 2015 talk). Now it's time to...

Samuel Iglesias 11/06/2015

piglit (IV): How to write binary test programs

Last post I talked about how to develop GLSL shader tests and how to add them to piglit. This is a nice way to develop simple tests but sometimes you need to do something more complex. For that case, piglit can run binary test programs. Introduction...

Samuel Iglesias 11/06/2015

piglit (IV): How to write binary test programs

Last post I talked about how to develop GLSL shader tests and how to add them to piglit. This is a nice way to develop simple tests but sometimes you need to do something more complex. For that case, piglit can run binary test...

Samuel Iglesias 29/05/2015

piglit (III): How to write GLSL shader tests

In earlier posts I talked about how to install piglit on your system and run the first time and how to tailor your piglit run. I have given a talk in FOSDEM 2015 about how to test your OpenGL drivers using Free Software where I explained how to run...

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anv: avoid segmentation fault due to vk_error()

vk_error() is a macro that calls __vk_errorf() with instance == NULL. Then, __vk_errorf() passes a pointer to instance->debug_report_callbacks to vk_debug_error(), which segfaults as this pointer is invalid but not NULL. Fixes: e5b1bd6ab8 "vulkan:...

Samuel Iglesias19/01/2018

arb_shader_storage_buffer_object: don't do out-of-bounds writes

From GLGL 4.5 spec, 5.11 "Out-of-Bounds Accesses": "In the subsections described above for array, vector, matrix and structure accesses, any out-of-bounds access produced undefined behavior. However, if robust buffer access is enabled via the OpenGL...

Samuel Iglesias25/08/2017

docs/envvars: sort INTEL_DEBUG envvar options by name

It helps to find the envvar option you are looking for. Signed-off-by: Samuel Iglesias Gonsálvez Reviewed-by: Iago Toral Quiroga

Samuel Iglesias20/04/2017

nir: rename lower_flrp to lower_flrp32

A later patch will add lower_flrp64 option to NIR. Signed-off-by: Samuel Iglesias Gonsálvez Reviewed-by: Jason Ekstrand

Samuel Iglesias28/04/2016

main: fix GL_MAX_NUM_ACTIVE_VARIABLES value for shader storage blocks

The maximum number of active variables for shader storage blocks should take into account the specific rules for shader storage blocks, i.e. for an active shader storage block member declared as an array, an entry will be generated only for the first...

Samuel Iglesias27/10/2015