[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

            Bug ID: 109524
           Summary: "Invalid glsl version in shading_language_version()"
                    when trying to run directX games using wine
           Product: Mesa
           Version: 18.2
          Hardware: x86 (IA32)
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/R100
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: laszlo.erdoes@freenet.de
        QA Contact: dri-devel@lists.freedesktop.org

When I try running any software in wine that uses direct3D, I get the following
message and an app crash:

Mesa 18.2.8 implementation error: Invalid GLSL version in
shading_language_version()
Please report at https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa
wine: Unhandled page fault on read access to 0x00000000 at address 0xb7bf1440
(thread 0009), starting debugger...

I'm using an R100 GPU. The problem wasn't present in some earlier versions of
Mesa, I believe it still worked in some 17.x version.

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[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

Mickey <onedollarwebhostings@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://www.onedollarwebhost
                   |                            |ings.com/rs-99-web-hosting-
                   |                            |domain-godaddy-india.html

--- Comment #1 from Mickey <onedollarwebhostings@gmail.com> ---
Such a nice post you shared with the audience.
http://www.onedollarwebhostings.com/rs-99-web-hosting-domain-godaddy-india.html
is the great to visit.

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[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

--- Comment #2 from david@linuxid10t.com ---
I have had the same problem in Mesa 19.0.0 with the Nouveau driver.  It seems
that any card without hardware shaders is failing.  This was tested with NV05
and NV11.

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[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

--- Comment #3 from BabylonAS <BabylonAS@yandex.ru> ---
Connected to this bug report on WineHQ:
https://bugs.winehq.org/show_bug.cgi?id=47389

Confirmed for Mesa 18.3.6. R100-class GPU too (ATI Mobility Radeon 7000 IGP).

R100 class Radeon GPUs only support OpenGL up to 1.3, while GLSL has only
become a thing as an extension for 1.4 and finally an integral feature in 2.0.
Does that mean OpenGL Shading Language support is nowadays necessary for Mesa?

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[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

--- Comment #4 from laszlo.erdoes@freenet.de ---
Other applications using OpenGL (and so mesa, I guess?) still seem to work

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[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

--- Comment #5 from Ilia Mirkin <imirkin@alum.mit.edu> ---
NV05 and NV11 don't support GLSL at all. Some entry point must not be
preventing it properly... perhaps something internal.

Is there like a wine test or something of the sort that can be used to
reproduce this? I have such a GPU plugged in I can test with, but I need a
repro.

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[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

--- Comment #6 from laszlo.erdoes@freenet.de ---
(In reply to Ilia Mirkin from comment #5)

> Is there like a wine test or something of the sort that can be used to
> reproduce this? I have such a GPU plugged in I can test with, but I need a
> repro.

You can try this console emulator, it will crash on my old machine with the
affected GPU:
http://fileland.square7.ch/t2k.zip

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[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

--- Comment #7 from Ilia Mirkin <imirkin@alum.mit.edu> ---
This patch should avoid the error being printed:

https://patchwork.freedesktop.org/patch/315751/

However I suspect that the calling code will continue to crash -- we return a
NULL pointer, and I suspect that the caller expects this to be non-null.

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[Bug 109524] "Invalid glsl version in shading_language_version()" when trying to run directX games using wine

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

--- Comment #8 from Ilia Mirkin <imirkin@alum.mit.edu> ---
Doing a little more digging, we enabled GL_ARB_shading_language_100
unconditionally in 2013:

commit 70966570f3e4275dc15b5a94c70698f6aef64150
Author: Ian Romanick <ian.d.romanick@intel.com>
Date:   Thu Jun 27 18:20:31 2013 -0700

    mesa: GL_ARB_shading_language_100 is not optional

However it appears that wine code has something like

https://source.winehq.org/git/wine.git/blob/201d13a3c31131f204f89d61be37bf75d58dc6dd:/dlls/wined3d/adapter_gl.c#l3737

3737     if (gl_info->supported[ARB_SHADING_LANGUAGE_100])
3738     {
3739         const char *str = (const char
*)gl_info->gl_ops.gl.p_glGetString(GL_SHADING_LANGUAGE_VERSION_ARB);
3740         unsigned int major, minor;
3741 
3742         TRACE("GLSL version string: %s.\n", debugstr_a(str));
3743 
3744         /* The format of the GLSL version string is "major.minor[.release]
[vendor info]". */
3745         sscanf(str, "%u.%u", &major, &minor);
3746         gl_info->glsl_version = MAKEDWORD_VERSION(major, minor);

I think the debugstr_a(NULL) is giving problems, but if it's not, sscanf
probably will.

I'm not 100% sure who's right here. Certainly the GL_ARB_shading_language_100
spec talks about GL_SHADING_LANGUAGE_VERSION_ARB not being available due to it
not existing in early extension specs. 

However the current behavior is a bit questionable on the mesa side. I don't
know what the rationale was for always exposing the ext (as given, it's because
one ought to check for ARB_vertex_program/etc, but that seems weak).

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https://bugs.freedesktop.org/show_bug.cgi?id=109524

Ilia Mirkin <imirkin@alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|http://www.onedollarwebhost |
                   |ings.com/rs-99-web-hosting- |
                   |domain-godaddy-india.html   |

--- Comment #9 from Ilia Mirkin <imirkin@alum.mit.edu> ---
Note that the following patch makes the t2k thing that was attached work fine.
However I need to check with Ian as to what's up.

diff --git a/src/mesa/main/extensions_table.h
b/src/mesa/main/extensions_table.h
index 332a75e6c73..ec376e497df 100644
--- a/src/mesa/main/extensions_table.h
+++ b/src/mesa/main/extensions_table.h
@@ -135,7 +135,7 @@ EXT(ARB_shader_subroutine                   , dummy_true
 EXT(ARB_shader_texture_image_samples        , ARB_shader_texture_image_samples
      , GLL, GLC,  x ,  x , 2014)
 EXT(ARB_shader_texture_lod                  , ARB_shader_texture_lod          
      , GLL, GLC,  x ,  x , 2009)
 EXT(ARB_shader_viewport_layer_array         , ARB_shader_viewport_layer_array 
      , GLL, GLC,  x ,  x , 2015)
-EXT(ARB_shading_language_100                , dummy_true                      
      , GLL,  x ,  x ,  x , 2003)
+EXT(ARB_shading_language_100                , dummy_true                      
      , 15,  x ,  x ,  x , 2003)
 EXT(ARB_shading_language_420pack            , ARB_shading_language_420pack    
      , GLL, GLC,  x ,  x , 2011)
 EXT(ARB_shading_language_packing            , ARB_shading_language_packing    
      , GLL, GLC,  x ,  x , 2011)
 EXT(ARB_shadow                              , ARB_shadow                      
      , GLL,  x ,  x ,  x , 2001)

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--- Comment #10 from Ilia Mirkin <imirkin@alum.mit.edu> ---
A better patch from Ian: https://patchwork.freedesktop.org/patch/315771/

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--- Comment #11 from laszlo.erdoes@freenet.de ---
(In reply to Ilia Mirkin from comment #10)
> A better patch from Ian: https://patchwork.freedesktop.org/patch/315771/

Thanks, this patch works on my machine.

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--- Comment #12 from BabylonAS <BabylonAS@yandex.ru> ---
On Debian Testing I still have Mesa 18.3.6; so do I have to build Mesa from
source code in order to get the patch?

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Juan A. Suarez <jasuarez@igalia.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #13 from Juan A. Suarez <jasuarez@igalia.com> ---
The patch landed in Mesa 19.1.5.

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--- Comment #14 from Juan A. Suarez <jasuarez@igalia.com> ---
(In reply to Juan A. Suarez from comment #13)
> The patch landed in Mesa 19.1.5.

I meant 19.1.4. Sorry.

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--- Comment #15 from BabylonAS <BabylonAS@yandex.ru> ---
Thanks! I’ll wait until it gets committed to Debian repositories.

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