From dfa028180b75a1a60bd51d9d72b458af063c16c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Antti=20Ker=C3=A4nen?= <detegr@rbx.email>
Date: Sun, 28 Jul 2024 18:37:51 +0300
Subject: [PATCH] feat: allow disabling quad view rendering per stage

---
 src/Config.hpp | 4 +++-
 src/OpenVR.cpp | 1 +
 src/OpenXR.cpp | 1 +
 src/RBR.cpp    | 6 ++++++
 src/VR.hpp     | 2 ++
 5 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/Config.hpp b/src/Config.hpp
index c650afa..66784e4 100644
--- a/src/Config.hpp
+++ b/src/Config.hpp
@@ -78,6 +78,7 @@ struct RenderContextConfig {
     float supersampling = 1.0;
     std::optional<D3DMULTISAMPLE_TYPE> msaa = std::nullopt;
     std::vector<int> stage_ids = {};
+    bool quad_view_rendering = false;
 };
 
 struct Config {
@@ -297,7 +298,8 @@ struct Config {
                         stages.push_back(static_cast<int>(*v));
                     });
                 }
-                cfg.gfx[k] = RenderContextConfig { ss, msaa, stages };
+                bool quad_view_stage_rendering = val["quadViewRendering"].value_or(true);
+                cfg.gfx[k] = RenderContextConfig { ss, msaa, stages, quad_view_stage_rendering };
             });
         }
 
diff --git a/src/OpenVR.cpp b/src/OpenVR.cpp
index cc34580..6e2cdc4 100644
--- a/src/OpenVR.cpp
+++ b/src/OpenVR.cpp
@@ -86,6 +86,7 @@ void OpenVR::init(IDirect3DDevice9* dev, IDirect3DVR9** vrdev, uint32_t companio
                 .width = { wss, wss },
                 .height = { hss, hss },
                 .msaa = gfx.second.msaa.value_or(g::cfg.gfx["default"].msaa.value()),
+                .quad_view_rendering = false,
             };
             init_surfaces(dev, ctx, companionWindowWidth, companionWindowHeight);
             render_contexts[gfx.first] = ctx;
diff --git a/src/OpenXR.cpp b/src/OpenXR.cpp
index 2fe147c..18588af 100644
--- a/src/OpenXR.cpp
+++ b/src/OpenXR.cpp
@@ -297,6 +297,7 @@ void OpenXR::init(IDirect3DDevice9* dev, IDirect3DVR9** vrdev, uint32_t companio
         RenderContext ctx = {
             .dx_shared_handle = { 0 },
             .msaa = gfx.second.msaa.value_or(g::cfg.gfx["default"].msaa.value()),
+            .quad_view_rendering = gfx.second.quad_view_rendering,
             .ext = xr_ctx
         };
 
diff --git a/src/RBR.cpp b/src/RBR.cpp
index 054286f..9ba19eb 100644
--- a/src/RBR.cpp
+++ b/src/RBR.cpp
@@ -303,6 +303,12 @@ namespace rbr {
                 restart_session = true;
             }
 
+            if (g::vr) {
+                bool wanted_quad_view_mode = g::vr->get_current_render_context()->quad_view_rendering;
+                restart_session = g::cfg.quad_view_rendering != wanted_quad_view_mode;
+                g::cfg.quad_view_rendering = wanted_quad_view_mode;
+            }
+
             if (restart_session) {
                 dbg("Restarting OpenXR session");
 
diff --git a/src/VR.hpp b/src/VR.hpp
index 17e254b..92566d2 100644
--- a/src/VR.hpp
+++ b/src/VR.hpp
@@ -96,6 +96,8 @@ struct RenderContext {
     IDirect3DTexture9* overlay_border;
     D3DMULTISAMPLE_TYPE msaa;
 
+    bool quad_view_rendering;
+
     void* ext;
 };