From 3eb29f419e340f11619fdacc3b782799ad6e53bb Mon Sep 17 00:00:00 2001
From: Ethan Lee <flibitijibibo@gmail.com>
Date: Tue, 18 Dec 2018 18:49:36 -0500
Subject: [PATCH] proton: Add PROTON_NO_D3D10

---
 README.md | 3 ++-
 proton    | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 8712e5a9..a5c618f9 100644
--- a/README.md
+++ b/README.md
@@ -208,7 +208,8 @@ the Wine prefix. Removing the option will revert to the previous behavior.
 |                       | <tt>PROTON_DUMP_DEBUG_COMMANDS</tt> | When running a game, Proton will write some useful debug scripts for that game into `$PROTON_DEBUG_DIR/proton_$USER/`. |
 |                       | <tt>PROTON_DEBUG_DIR</tt>      | Root directory for the Proton debug scripts, `/tmp` by default. |
 | <tt>wined3d</tt>      | <tt>PROTON_USE_WINED3D</tt>    | Use OpenGL-based wined3d instead of Vulkan-based DXVK for d3d11 and d3d10. This used to be called `PROTON_USE_WINED3D11`, which is now an alias for this same option. |
-| <tt>nod3d11</tt>      | <tt>PROTON_NO_D3D11</tt>       | Disable <tt>d3d11.dll</tt>, for games which can fall back to and run better with d3d9. |
+| <tt>nod3d11</tt>      | <tt>PROTON_NO_D3D11</tt>       | Disable <tt>d3d11.dll</tt>, for d3d11 games which can fall back to and run better with d3d9. |
+| <tt>nod3d10</tt>      | <tt>PROTON_NO_D3D10</tt>       | Disable <tt>d3d10.dll</tt> and <tt>dxgi.dll</tt>, for d3d10 games which can fall back to and run better with d3d9. |
 | <tt>noesync</tt>      | <tt>PROTON_NO_ESYNC</tt>       | Do not use eventfd-based in-process synchronization primitives. |
 | <tt>forcelgadd</tt>   | <tt>PROTON_FORCE_LARGE_ADDRESS_AWARE</tt> | Force Wine to enable the LARGE_ADDRESS_AWARE flag for all executables. |
 
diff --git a/proton b/proton
index 91da8221..ea67fcaf 100755
--- a/proton
+++ b/proton
@@ -219,6 +219,7 @@ if "wined3d11" in config_opts:
 if not check_environment("PROTON_USE_WINED3D", "wined3d"):
     check_environment("PROTON_USE_WINED3D11", "wined3d")
 check_environment("PROTON_NO_D3D11", "nod3d11")
+check_environment("PROTON_NO_D3D10", "nod3d10")
 check_environment("PROTON_NO_ESYNC", "noesync")
 check_environment("PROTON_FORCE_LARGE_ADDRESS_AWARE", "forcelgadd")
 
@@ -416,6 +417,11 @@ if "nod3d11" in config_opts:
     if "dxgi" in dlloverrides:
         del dlloverrides["dxgi"]
 
+if "nod3d10" in config_opts:
+    dlloverrides["d3d10_1"] = ""
+    dlloverrides["d3d10"] = ""
+    dlloverrides["dxgi"] = ""
+
 s = ""
 for dll in dlloverrides:
     setting = dlloverrides[dll]