[PATCH v3 1/2] vkd3d: Do not skip all viewports if one is invalid.

[Conor McCarthy]

From: Conor McCarthy

Fixes blank screen in Assassin's Creed: Valhalla.
---
 libs/vkd3d/command.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/libs/vkd3d/command.c b/libs/vkd3d/command.c
index 6eddcfa2..4abee07c 100644
--- a/libs/vkd3d/command.c
+++ b/libs/vkd3d/command.c
@@ -3963,10 +3963,12 @@ static void STDMETHODCALLTYPE d3d12_command_list_RSSetViewports(ID3D12GraphicsCo
         vk_viewports[i].minDepth = viewports[i].MinDepth;
         vk_viewports[i].maxDepth = viewports[i].MaxDepth;

-        if (!vk_viewports[i].width || !vk_viewports[i].height)
+        if (!vk_viewports[i].width)
         {
-            FIXME_ONCE("Invalid viewport %u, ignoring RSSetViewports().\n", i);
-            return;
+            /* Vulkan does not support width <= 0 */
+            FIXME_ONCE("Setting invalid viewport %u to zero height.\n", i);
+            vk_viewports[i].width = 1.0f;
+            vk_viewports[i].height = 0.0f;
         }
     }