nvidia linux tester wanted

[gregory]

Dear Nvidia users,

I want to contribute to the free drivers (mesa) to support the extension GL_ARB_separate_shader_objects. If I'm correct it is the major blocking point to use GSdx ogl on the free drivers.
1/ It would allow to use GSdx with Intel users.
2/ It would allow me to debug on a real driver with full visilibity. Catalyst is dull and crash for no reason.
3/ Later it would me to debug zzogl on GLSL too.

Before any serious implementation, I need write some tests that will ensure the conformance to the opengl specification. Unfortunately I can't rely on the behavior of Catalyst (don't really follow the spec).

What I need is someone which is able (don't worry it isn't complicated):
* to build piglit test suite (the conformance test of the mesa driver)
* to apply my patch
* to run the new test
* to report me the result on the Nvidia proprietary driver.

# To get piglit, use this command:

Code:

git clone git://anongit.freedesktop.org/piglit

# To build piglit. You need to install waffle (or hack CMakeList.txt to remove it )

Code:

cmake .
make

[gregory]

Here my first patches.
# First do a copy of piglit git tree.

Code:

cp piglit piglit_before_patch

# go to the piglit tree (copy the patch)

Code:

cd piglit

# Unzip and apply patch. Do it for every patch.

Code:

gunzip 0001-piglit-util-new-functions-piglit_program_pipeline_ch.patch.gz
git am 0001-piglit-util-new-functions-piglit_program_pipeline_ch.patch

# compile (do the cmake if it wasn't already done)

Code:

make

# Run the new programm with the -auto option

Code:

./bin/arb_separate_shader_object-mix_pipeline_useprogram -auto
./bin/arb_separate_shader_object-GetProgramPipelineiv -auto
./bin/arb_separate_shader_object-IsProgramPipeline  -auto
./bin/ext_transform_feedback-api-errors bind_pipeline -auto
./bin/ext_transform_feedback-api-errors useprogstage_active -auto
./bin/ext_transform_feedback-api-errors useprogstage_noactive -auto

# Then report it me the full status and debug message. Thanks

[DaTankAC]

i can try all of this over the weekend

[123_qwe]

I've atteched the output on my desktop pc with an nvidia gtx 650

./bin/arb_separate_shader_object-IsProgramPipeline IsProgramPipeline -auto > 3.txt
Pipeline 1 has wrong IsProgramPipeline. Expected 0, got 1
Pipeline 2 has wrong IsProgramPipeline. Expected 0, got 1
Pipeline 3 has wrong IsProgramPipeline. Expected 0, got 1
Pipeline 4 has wrong IsProgramPipeline. Expected 0, got 1
Falha de segmentação (imagem do núcleo gravada)

Only the third one failed. Btw i'm running Ubuntu 12.10 for amd64.

All the best and thank you for your work

[Clank]

Would the output from a 8400GS help, or is it too old?

[gregory]

Thanks. I thinks it mostly depends of your drivers. Check that your driver support GL_ARB_separate_shader_objects extensions:

Code:

glxinfo | grep GL_ARB_separate_shader_objects

The 2 latest program need GL_EXT_transform_feedback

Code:

glxinfo | grep GL_EXT_transform_feedback

@123_qwe, thank for the results.
* Yes I would expect the prog 3 to crash. Can you post 3.txt, I add some printing to know where it is actually crashing.
* Result of 1 is very stange, can you try to relaunch it and see if you get same results.
* I need to fix prog 2

Edit: I update 1 test program, please find the patch attached.
Either, get a new clean tree and reapply the 3 patches. Or do a "rebase -i", remove the line "add-3-news-test...", then apply the new patch.

[123_qwe]

./bin/arb_separate_shader_object-IsProgramPipeline IsProgramPipeline -auto
glGenProgramPipelines with negative n value
glGenProgramPipelines with correct n value
Pipeline 1 has wrong IsProgramPipeline. Expected 0, got 1
Pipeline 2 has wrong IsProgramPipeline. Expected 0, got 1
Pipeline 3 has wrong IsProgramPipeline. Expected 0, got 1
Pipeline 4 has wrong IsProgramPipeline. Expected 0, got 1

Output with the new patch.

[DaTankAC]

@ gregory

Is 123_qwe results enough or do you need more than one person to post results of these tests?

On a side note, perhaps I wil put my Radeon 6770 up for sale because Nvidia seems like a better choice in the long run...

[gregory]

Yes a bit more would be useful I really wish I have an nvidia card on my box with both proprietary driver.

Current status:
* need more test of this one "./bin/arb_separate_shader_object-mix_pipeline_useprogram -auto"
* need a test with my latest patch "./bin/arb_separate_shader_object-GetProgramPipelineiv -auto"
* need a gdb trace of arb_separate_shader_object-IsProgramPipeline

Code:

gdb ./bin/arb_separate_shader_object-IsProgramPipeline
run -auto
bt

A new test will come later but I need to finish it first

DatankAC, I would say it depends on when you plan to buy a new GPU.

[gregory]

Hello again,

Here a new patch that test cross shader validation status. Part 11 & 12 are failling on AMD, seems like a spec issue. Let's see the status on Nvidia.

Note this new patch must be apply after the previous serie.

Edit:
123_qwe did you use waffle or GLUT?