- fixed saved game thumbnails generation with Vulkan renderer

GZDoom aborts with 'Failed to submit command buffer' error on saving a game when open source Intel Vulkan driver (part of Mesa 3D package) is used on Linux This driver generates VK_DEVICE_LOST error when vkWaitForFences() is called with zero fence count. It must be greater than zero according to Vulkan spec
ZDoom · May 1, 2019 · b23958b · b23958b
1 parent 1973001
commit b23958b
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/src/rendering/vulkan/system/vk_framebuffer.cpp b/src/rendering/vulkan/system/vk_framebuffer.cpp
@@ -286,8 +286,12 @@ void VulkanFrameBuffer::WaitForCommands(bool finish)
 	}
 
 	int numWaitFences = MIN(mNextSubmit, (int)maxConcurrentSubmitCount);
-	vkWaitForFences(device->device, numWaitFences, mSubmitWaitFences, VK_TRUE, std::numeric_limits<uint64_t>::max());
-	vkResetFences(device->device, numWaitFences, mSubmitWaitFences);
+
+	if (numWaitFences > 0)
+	{
+		vkWaitForFences(device->device, numWaitFences, mSubmitWaitFences, VK_TRUE, std::numeric_limits<uint64_t>::max());
+		vkResetFences(device->device, numWaitFences, mSubmitWaitFences);
+	}
 
 	DeleteFrameObjects();
 	mNextSubmit = 0;