Workaround weird resize-bug on UWP

jhasse · Oct 3, 2023 · 7b72867 · 7b72867
1 parent 3984daa
commit 7b72867
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/src/sdl/window.cpp b/src/sdl/window.cpp
@@ -370,7 +370,7 @@ void Window::UpdateInput() {
 			}
 			break;
 		case SDL_WINDOWEVENT:
-			if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
+			if (!impl->firstFrame && event.window.event == SDL_WINDOWEVENT_RESIZED) {
 				const int originalWidth = width_;
 				const int originalHeight = height_;
 				SDL_GL_GetDrawableSize(impl->sdlWindow, &width_, &height_);
@@ -416,6 +416,7 @@ void Window::UpdateInput() {
 
 void Window::SwapBuffers() {
 	SDL_GL_SwapWindow(impl->sdlWindow);
+	impl->firstFrame = false;
 }
 
 void Window::SetMouseVisible(const bool visible) {

diff --git a/src/sdl/windowimpl.hpp b/src/sdl/windowimpl.hpp
@@ -42,6 +42,10 @@ class WindowImpl {
 
 	/// For Retina screens on macOS SDL does its own scaling of mouse coordinates, etc. :(
 	float hidpiScaleFactor;
+
+	/// On UWP there's a bug that sometimes there are "wrong" resize events at startup (maybe due to
+	/// fullscreen mode?). Just skipping them until the first frame is drawn is a workaround.
+	bool firstFrame = true;
 };
 
 } // namespace jngl