From e098e0ca2ee5060cdf632c2941de77ef92f79dba Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Mon, 5 Apr 2021 20:12:11 +0200
Subject: [PATCH] - added VR mode init code as this is actually functional with
 the new renderer.

Also moved a few things out of gl_texture.cpp as this file is scheduled to go away with Polymost.
---
 source/common/textures/hw_material.cpp |  1 +
 source/core/gamecontrol.cpp            |  7 +++++++
 source/core/menu/razemenu.cpp          | 26 ++++++++++++++++++++++++++
 source/glbackend/gl_texture.cpp        | 17 -----------------
 4 files changed, 34 insertions(+), 17 deletions(-)

diff --git a/source/common/textures/hw_material.cpp b/source/common/textures/hw_material.cpp
index f8d379cd4..a157cbc07 100644
--- a/source/common/textures/hw_material.cpp
+++ b/source/common/textures/hw_material.cpp
@@ -30,6 +30,7 @@
 #include "v_video.h"
 
 static IHardwareTexture* (*layercallback)(int layer, int translation);
+TArray<UserShaderDesc> usershaders;
 
 void FMaterial::SetLayerCallback(IHardwareTexture* (*cb)(int layer, int translation))
 {
diff --git a/source/core/gamecontrol.cpp b/source/core/gamecontrol.cpp
index e395ece8a..e5e5410f5 100644
--- a/source/core/gamecontrol.cpp
+++ b/source/core/gamecontrol.cpp
@@ -1412,3 +1412,10 @@ DEFINE_GLOBAL(gameaction)
 DEFINE_GLOBAL(gamestate)
 DEFINE_GLOBAL(demoplayback)
 DEFINE_GLOBAL(consoleplayer)
+
+
+void InitBuildTiles()
+{
+	// need to find a better way to handle this thing.
+}
+
diff --git a/source/core/menu/razemenu.cpp b/source/core/menu/razemenu.cpp
index 08b5c84be..528a9175b 100644
--- a/source/core/menu/razemenu.cpp
+++ b/source/core/menu/razemenu.cpp
@@ -731,3 +731,29 @@ DEFINE_ACTION_FUNCTION(_PlayerMenu, DrawPlayerSprite)
 	return 0;
 }
 
+#ifdef _WIN32
+EXTERN_CVAR(Bool, vr_enable_quadbuffered)
+#endif
+
+void UpdateVRModes(bool considerQuadBuffered)
+{
+	FOptionValues** pVRModes = OptionValues.CheckKey("VRMode");
+	if (pVRModes == nullptr) return;
+
+	TArray<FOptionValues::Pair>& vals = (*pVRModes)->mValues;
+	TArray<FOptionValues::Pair> filteredValues;
+	int cnt = vals.Size();
+	for (int i = 0; i < cnt; ++i) {
+		auto const& mode = vals[i];
+		if (mode.Value == 7) {  // Quad-buffered stereo
+#ifdef _WIN32
+			if (!vr_enable_quadbuffered) continue;
+#else
+			continue;  // Remove quad-buffered option on Mac and Linux
+#endif
+			if (!considerQuadBuffered) continue;  // Probably no compatible screen mode was found
+		}
+		filteredValues.Push(mode);
+	}
+	vals = filteredValues;
+}
diff --git a/source/glbackend/gl_texture.cpp b/source/glbackend/gl_texture.cpp
index 023c9475d..783e02d83 100644
--- a/source/glbackend/gl_texture.cpp
+++ b/source/glbackend/gl_texture.cpp
@@ -86,20 +86,3 @@ bool GLInstance::SetTexture(FGameTexture* tex, int paletteid, int sampler, bool
 	return true;
 }
 
-//===========================================================================
-// 
-// stand-ins for the texture system. Nothing of this is used right now, but needs to be present to satisfy the linker
-//
-//===========================================================================
-
-void InitBuildTiles()
-{
-
-}
-
-TArray<UserShaderDesc> usershaders;
-
-void UpdateVRModes(bool considerQuadBuffered = true)
-{
-	// should update the menu.
-}