From 348df5a9860607b78a7b842be1f09ae486e46ff0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=CE=B6eh=20Matt?= <5415177+ZehMatt@users.noreply.github.com>
Date: Thu, 1 Aug 2024 00:20:26 +0300
Subject: [PATCH] Clear the screen with color in the drawing engine and not
 each tick

---
 .../drawing/engines/HardwareDisplayDrawingEngine.cpp         | 2 ++
 .../drawing/engines/opengl/OpenGLDrawingEngine.cpp           | 1 +
 src/openrct2/drawing/X8DrawingEngine.cpp                     | 1 +
 src/openrct2/scenes/preloader/PreloaderScene.cpp             | 5 -----
 4 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/openrct2-ui/drawing/engines/HardwareDisplayDrawingEngine.cpp b/src/openrct2-ui/drawing/engines/HardwareDisplayDrawingEngine.cpp
index 8732944473..e1c4fcc02b 100644
--- a/src/openrct2-ui/drawing/engines/HardwareDisplayDrawingEngine.cpp
+++ b/src/openrct2-ui/drawing/engines/HardwareDisplayDrawingEngine.cpp
@@ -158,6 +158,8 @@ public:
         _screenTextureFormat = SDL_AllocFormat(format);
 
         ConfigureBits(width, height, width);
+
+        _drawingContext->Clear(_bitsDPI, PALETTE_INDEX_10);
     }
 
     void SetPalette(const GamePalette& palette) override
diff --git a/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp b/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp
index 88745adf7e..ff519e30c8 100644
--- a/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp
+++ b/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp
@@ -245,6 +245,7 @@ public:
         ConfigureBits(width, height, width);
         ConfigureCanvas();
         _drawingContext->Resize(width, height);
+        _drawingContext->Clear(_bitsDPI, PALETTE_INDEX_10);
     }
 
     void SetPalette(const GamePalette& palette) override
diff --git a/src/openrct2/drawing/X8DrawingEngine.cpp b/src/openrct2/drawing/X8DrawingEngine.cpp
index 4c139de5d8..5ad214c5f7 100644
--- a/src/openrct2/drawing/X8DrawingEngine.cpp
+++ b/src/openrct2/drawing/X8DrawingEngine.cpp
@@ -139,6 +139,7 @@ void X8DrawingEngine::Resize(uint32_t width, uint32_t height)
 {
     uint32_t pitch = width;
     ConfigureBits(width, height, pitch);
+    _drawingContext->Clear(_bitsDPI, PALETTE_INDEX_10);
 }
 
 void X8DrawingEngine::SetPalette([[maybe_unused]] const GamePalette& palette)
diff --git a/src/openrct2/scenes/preloader/PreloaderScene.cpp b/src/openrct2/scenes/preloader/PreloaderScene.cpp
index cbf1a7dc32..298757c8bf 100644
--- a/src/openrct2/scenes/preloader/PreloaderScene.cpp
+++ b/src/openrct2/scenes/preloader/PreloaderScene.cpp
@@ -52,11 +52,6 @@ void PreloaderScene::Tick()
     ContextHandleInput();
     WindowInvalidateAll();
 
-    // Reset screen
-    auto* engine = GetContext().GetDrawingEngine();
-    auto* drawingContext = engine->GetDrawingContext();
-    drawingContext->Clear(*engine->GetDrawingPixelInfo(), PALETTE_INDEX_10);
-
     gInUpdateCode = false;
 
     if (_jobs.CountPending() == 0 && _jobs.CountProcessing() == 0)