Avoid blocking for resize to go through.

With DXGI interop this will break since DXGI may block on message loop,
and we don't bother with threaded ML on non-Windows anymore anyway.

application/platforms/application_sdl3.cpp

@@ -389,25 +389,12 @@ struct WSIPlatformSDL : GraniteWSIPlatform
 
 	void notify_resize(unsigned width_, unsigned height_)
 	{
-		uint64_t current_resize_timestamp = swapchain_dimension_update_timestamp;
-
+		LOGI("Resize: %u x %u\n", width_, height_);
 		push_task_to_async_thread([=]() {
 			resize = true;
 			width = width_;
 			height = height_;
 		});
-
-		if (options.threaded)
-		{
-			// Give the async thread a chance to catch up with main thread so it can create a new swapchain before
-			// we invalidate the swapchain again.
-			// There is a gap when querying swapchain dimensions and when we create the swapchain.
-			// On most platforms, the query must match the swapchain,
-			// so if we keep processing OS events, things will get out of sync.
-			// Need to observe that the async thread updates the swapchain dimensions at least once.
-			while (current_resize_timestamp == swapchain_dimension_update_timestamp && async_loop_alive)
-				process_events_main_thread_blocking();
-		}
 	}
 
 	void notify_current_swapchain_dimensions(unsigned width_, unsigned height_) override

vulkan/wsi.cpp

@@ -548,6 +548,7 @@ bool WSI::begin_frame()
 			LOGI("AcquireNextImageKHR is suboptimal, will recreate.\n");
 #endif
 			swapchain_is_suboptimal = true;
+			LOGW("Swapchain suboptimal.\n");
 		}
 
 		if (result >= 0)
@@ -576,6 +577,7 @@ bool WSI::begin_frame()
 		}
 		else if (result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_ERROR_FULL_SCREEN_EXCLUSIVE_MODE_LOST_EXT)
 		{
+			LOGW("Swapchain out of date.\n");
 			VK_ASSERT(swapchain_width != 0);
 			VK_ASSERT(swapchain_height != 0);
 

vulkan/wsi.hpp

@@ -68,7 +68,6 @@ class WSIPlatform
 		resize = false;
 		current_swapchain_width = width;
 		current_swapchain_height = height;
-		swapchain_dimension_update_timestamp++;
 	}
 
 	virtual uint32_t get_surface_width() = 0;
@@ -132,7 +131,6 @@ class WSIPlatform
 protected:
 	unsigned current_swapchain_width = 0;
 	unsigned current_swapchain_height = 0;
-	uint64_t swapchain_dimension_update_timestamp = 0;
 	bool resize = false;
 
 private: