From 89dd7dc1802cc53e828cb71c1f3e2bc0879459ce Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Sun, 27 Nov 2022 20:37:37 -0500
Subject: video_core: add null backend

---
 src/yuzu/bootmanager.cpp | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

(limited to 'src/yuzu/bootmanager.cpp')

diff --git a/src/yuzu/bootmanager.cpp b/src/yuzu/bootmanager.cpp
index c934069dd..f140e951f 100644
--- a/src/yuzu/bootmanager.cpp
+++ b/src/yuzu/bootmanager.cpp
@@ -237,8 +237,7 @@ private:
     GRenderWindow* render_window;
 };
 
-class OpenGLRenderWidget : public RenderWidget {
-public:
+struct OpenGLRenderWidget : public RenderWidget {
     explicit OpenGLRenderWidget(GRenderWindow* parent) : RenderWidget(parent) {
         windowHandle()->setSurfaceType(QWindow::OpenGLSurface);
     }
@@ -251,13 +250,16 @@ private:
     std::unique_ptr<Core::Frontend::GraphicsContext> context;
 };
 
-class VulkanRenderWidget : public RenderWidget {
-public:
+struct VulkanRenderWidget : public RenderWidget {
     explicit VulkanRenderWidget(GRenderWindow* parent) : RenderWidget(parent) {
         windowHandle()->setSurfaceType(QWindow::VulkanSurface);
     }
 };
 
+struct NullRenderWidget : public RenderWidget {
+    explicit NullRenderWidget(GRenderWindow* parent) : RenderWidget(parent) {}
+};
+
 static Core::Frontend::WindowSystemType GetWindowSystemType() {
     // Determine WSI type based on Qt platform.
     QString platform_name = QGuiApplication::platformName();
@@ -874,6 +876,9 @@ bool GRenderWindow::InitRenderTarget() {
             return false;
         }
         break;
+    case Settings::RendererBackend::Null:
+        InitializeNull();
+        break;
     }
 
     // Update the Window System information with the new render target
@@ -970,6 +975,11 @@ bool GRenderWindow::InitializeVulkan() {
     return true;
 }
 
+void GRenderWindow::InitializeNull() {
+    child_widget = new NullRenderWidget(this);
+    main_context = std::make_unique<DummyContext>();
+}
+
 bool GRenderWindow::LoadOpenGL() {
     auto context = CreateSharedContext();
     auto scope = context->Acquire();
-- 
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