Le blog de Jean David TECHER, un Réunionnais à Saint-Priest/Lyon

Here we will download

• the Official Mesa Repo
• the Mesa Repo maintained by iXit Team

Notice: iXit Team Repo is the Mesa Repo patched with Gallium Nine. Sometimes it is refreshed sometimes not!. Here I will show how I extract lasted patches for Gallium Nine and how I apply those patches to Mesa Official Repo

1. Download the latest Official Mesa Repo

   git clone git://anongit.freedesktop.org/mesa/mesa Mesa-3D_$(date -I)

2. Get the latest comment from the latest commit

   root@amdgaming:/opt/Sources/Mesa-3D_2016-01-30# git log|head -n5
   commit 438d421f8bb3f65402701628c3504c0ad04184c0
   Author: Ilia Mirkin 
   Date:   Fri Jan 29 20:28:12 2016 -0500
   
       nvc0: avoid crashing when there are holes in vertex array bindings
   

3. Download the latest iXit Repo (this one is patched with Gallium Nine!)

   git clone https://github.com/iXit/Mesa-3D.git Mesa-3D_iXit_$(date -I)
   cd Mesa-3D_iXit_$(date -I)

4. We need to extract the latest patches for Gallium Nine. To do this we need to get the latest commit. We get it using

   root@amdgaming:/opt/Sources/Mesa-3D_iXit_2016-01-30# git log|head -n1
   commit e4ce343e5c8b85ead88717b886c8a46753b5d7c8
   

   Ok. So it will be e4ce343e5c8b85ead88717b886c8a46753b5d7c8
5. Now question is how many patches have to be generated? Well try a huge number like 60 using the command first

   root@amdgaming:/opt/Sources/Mesa-3D_iXit_2016-01-30# rm -f *patch;git format-patch -60 e4ce343e5c8b85ead88717b886c8a46753b5d7c8
   0001-glsl-double-precision-values-don-t-support-interpola.patch
   0002-radeonsi-Add-option-for-SI-scheduler.patch
   0003-glsl-disallow-implicit-conversions-in-ESSL-shaders.patch
   0004-st-nine-Fix-AlphaCmpCaps.patch
   0005-st-nine-Fix-D3DPMISCCAPS_FOGANDSPECULARALPHA-support.patch
   0006-st-nine-Fix-rounding-issue-with-vs1.1-a0-reg.patch
   ...
   ...
   0057-st-nine-Add-format-checks-to-create_zs_or_rt_surface.patch
   0058-st-nine-SCRATCH-does-support-all-formats.patch
   0059-st-nine-Improve-doc-of-D3DPMISCCAPS_POSTBLENDSRGBCON.patch
   0060-st-nine-Ignore-discard-flag-when-nooverwrite-is-set.patch
   

6. So it means that we will get the latest patches by removing the 3 first patches listed above. 57 = 60 - 3. So the correct command to extract Gallium Nine patches will be

   rm -f *patch;git format-patch -57 e4ce343e5c8b85ead88717b886c8a46753b5d7c8

7. So now we can get back to Mesa Official Sources and patch those sources with Gallium Nine

   cd Mesa-3D_$(date -I)
   for file in $(ls /opt/Sources/Mesa-3D_iXit_2016-01-30/*patch);do patch -p1 < $file;done

   and we will get

   patching file src/gallium/state_trackers/nine/adapter9.c
   patching file src/gallium/state_trackers/nine/adapter9.c
   patching file src/gallium/state_trackers/nine/nine_shader.c
   patching file src/gallium/state_trackers/nine/nine_shader.c
   ...
   ...
   patching file src/gallium/state_trackers/nine/texture9.c
   patching file src/gallium/state_trackers/nine/volumetexture9.c
   patching file src/gallium/state_trackers/nine/adapter9.c
   patching file src/gallium/state_trackers/nine/nine_pipe.h
   

8. Now we can build Mesa

Got decent FPS for this game

Prerequisites for this game are the same used for "Resident Evil HD Remaster"

This game works great on Linux with Mesa 11.2 Dev -- WineD3D -- . Gallium-Nine is not useable here