[PATCH 2/4] 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 | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/libs/vkd3d/command.c b/libs/vkd3d/command.c
index 6eddcfa2..5647d48c 100644
--- a/libs/vkd3d/command.c
+++ b/libs/vkd3d/command.c
@@ -3944,7 +3944,7 @@ static void STDMETHODCALLTYPE d3d12_command_list_RSSetViewports(ID3D12GraphicsCo
     VkViewport vk_viewports[D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
     struct d3d12_command_list *list = impl_from_ID3D12GraphicsCommandList2(iface);
     const struct vkd3d_vk_device_procs *vk_procs;
-    unsigned int i;
+    unsigned int i, count;

TRACE("iface %p, viewport_count %u, viewports %p.\n", iface, viewport_count, viewports);

@@ -3954,24 +3954,25 @@ static void STDMETHODCALLTYPE d3d12_command_list_RSSetViewports(ID3D12GraphicsCo
         viewport_count = ARRAY_SIZE(vk_viewports);
     }

-    for (i = 0; i < viewport_count; ++i)
+    for (i = 0, count = 0; i < viewport_count; ++i)
     {
-        vk_viewports[i].x = viewports[i].TopLeftX;
-        vk_viewports[i].y = viewports[i].TopLeftY + viewports[i].Height;
-        vk_viewports[i].width = viewports[i].Width;
-        vk_viewports[i].height = -viewports[i].Height;
-        vk_viewports[i].minDepth = viewports[i].MinDepth;
-        vk_viewports[i].maxDepth = viewports[i].MaxDepth;
+        vk_viewports[count].x = viewports[i].TopLeftX;
+        vk_viewports[count].y = viewports[i].TopLeftY + viewports[i].Height;
+        vk_viewports[count].width = viewports[i].Width;
+        vk_viewports[count].height = -viewports[i].Height;
+        vk_viewports[count].minDepth = viewports[i].MinDepth;
+        vk_viewports[count].maxDepth = viewports[i].MaxDepth;

-        if (!vk_viewports[i].width || !vk_viewports[i].height)
+        if (!vk_viewports[count].width || !vk_viewports[count].height)
         {
-            FIXME_ONCE("Invalid viewport %u, ignoring RSSetViewports().\n", i);
-            return;
+            FIXME_ONCE("Ignoring invalid viewport %u.\n", i);
+            continue;
         }
+        ++count;
     }

vk_procs = &list->device->vk_procs;
-    VK_CALL(vkCmdSetViewport(list->vk_command_buffer, 0, viewport_count, vk_viewports));
+    VK_CALL(vkCmdSetViewport(list->vk_command_buffer, 0, count, vk_viewports));
 }

static void STDMETHODCALLTYPE d3d12_command_list_RSSetScissorRects(ID3D12GraphicsCommandList2 *iface,