From 2efeab6a4c9ef2207345da92b8f16f8df2a86893 Mon Sep 17 00:00:00 2001
From: Daniel Svensson <dsvensson@gmail.com>
Date: Fri, 6 Sep 2024 18:32:13 +0200
Subject: [PATCH] Vulkan+Wayland fixes (#271)

* Process wayland events with vulkan renderer.

* Handle vulkan offscreen swapchain size selection.
---
 engine/gl/gl_vidwayland.c |  9 ++++++++-
 engine/vk/vk_init.c       | 15 +++++++++++++--
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/engine/gl/gl_vidwayland.c b/engine/gl/gl_vidwayland.c
index f0827bb07..8f8807150 100644
--- a/engine/gl/gl_vidwayland.c
+++ b/engine/gl/gl_vidwayland.c
@@ -1489,7 +1489,14 @@ static void WL_SwapBuffers(void)
 		}
 		break;
 #endif
-	case QR_VULKAN: 	//the vulkan stuff handles this itself. FIXME: are we still receiving inputs? no idea!
+	case QR_VULKAN:
+		if (pwl_display_dispatch_pending(w.display) < 0)
+		{
+			Con_Printf(CON_ERROR "wayland connection was lost. Restarting video\n");
+			Cbuf_InsertText("vid_restart", RESTRICT_LOCAL, true);
+			return;
+		}
+		break;
 	default:
 		break;
 	}
diff --git a/engine/vk/vk_init.c b/engine/vk/vk_init.c
index a4786a6e4..3e3155068 100644
--- a/engine/vk/vk_init.c
+++ b/engine/vk/vk_init.c
@@ -715,8 +715,19 @@ static qboolean VK_CreateSwapChain(void)
 			swapinfo.minImageCount = surfcaps.maxImageCount;
 		if (swapinfo.minImageCount < surfcaps.minImageCount)
 			swapinfo.minImageCount = surfcaps.minImageCount;
-		swapinfo.imageExtent.width = surfcaps.currentExtent.width;
-		swapinfo.imageExtent.height = surfcaps.currentExtent.height;
+
+		// With offscreen rendering, the size is not known at first
+		if (surfcaps.currentExtent.width == UINT32_MAX && surfcaps.currentExtent.height == UINT32_MAX)
+		{
+			swapinfo.imageExtent.width = bound(surfcaps.minImageExtent.width, vid.pixelwidth, surfcaps.maxImageExtent.width);
+			swapinfo.imageExtent.height = bound(surfcaps.minImageExtent.height, vid.pixelheight, surfcaps.maxImageExtent.height);
+		}
+		else
+		{
+			swapinfo.imageExtent.width = surfcaps.currentExtent.width;
+			swapinfo.imageExtent.height = surfcaps.currentExtent.height;
+		}
+
 		swapinfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT|VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
 		swapinfo.preTransform = surfcaps.currentTransform;//VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 		if (surfcaps.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR)