Fix #5889: Giant screenshot does not work while using OpenGL renderer

distribution/changelog.txt

@@ -10,6 +10,7 @@
 - Change: [#7877] Files are now sorted in logical rather than dictionary order.
 - Change: [#8688] Move common actions from debug menu into cheats menu.
 - Fix: [#5103] OpenGL: ride track preview not rendered.
+- Fix: [#5889] Giant screenshot does not work while using OpenGL renderer.
 - Fix: [#5579] Network desync immediately after connecting.
 - Fix: [#5893] Looking at guest window tabs other than the main tab eventually causes assertion.
 - Fix: [#5905] Urban Park merry-go-round has entrance and exit swapped (original bug).

src/openrct2/interface/Screenshot.cpp

@@ -17,6 +17,7 @@
 #include "../core/Console.hpp"
 #include "../core/Imaging.h"
 #include "../drawing/Drawing.h"
+#include "../drawing/X8DrawingEngine.h"
 #include "../localisation/Localisation.h"
 #include "../platform/platform.h"
 #include "../util/Util.h"
@@ -31,6 +32,7 @@
 #include <memory>
 
 using namespace OpenRCT2;
+using namespace OpenRCT2::Drawing;
 
 uint8_t gScreenshotCountdown = 0;
 
@@ -293,6 +295,9 @@ void screenshot_giant()
     dpi.zoom_level = 0;
     dpi.bits = (uint8_t*)malloc(dpi.width * dpi.height);
 
+    auto drawingEngine = std::make_unique<X8DrawingEngine>(GetContext()->GetUiContext());
+    dpi.DrawingEngine = drawingEngine.get();
+
     viewport_render(&dpi, &viewport, 0, 0, viewport.width, viewport.height);
 
     // Get a free screenshot path