Józef Kucia : vkd3d: Try to not invalidate current pipeline in IASetVertexBuffers().

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 80dbf329cae4f654c4898625d25782a8eeb46f77
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=80dbf329cae4f654c4898625...

Author: Józef Kucia <jkucia(a)codeweavers.com>
Date:   Thu Aug 23 18:33:01 2018 +0200

vkd3d: Try to not invalidate current pipeline in IASetVertexBuffers().

Signed-off-by: Józef Kucia <jkucia(a)codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 libs/vkd3d/command.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libs/vkd3d/command.c b/libs/vkd3d/command.c
index f5b6558..cb50d63 100644
--- a/libs/vkd3d/command.c
+++ b/libs/vkd3d/command.c
@@ -3464,6 +3464,7 @@ static void STDMETHODCALLTYPE d3d12_command_list_IASetVertexBuffers(ID3D12Graphi
     VkBuffer buffers[ARRAY_SIZE(list->strides)];
     unsigned int i, first, count, stride;
     struct d3d12_resource *resource;
+    bool invalidate = false;
 
     TRACE("iface %p, start_slot %u, view_count %u, views %p.\n", iface, start_slot, view_count, views);
 
@@ -3499,13 +3500,15 @@ static void STDMETHODCALLTYPE d3d12_command_list_IASetVertexBuffers(ID3D12Graphi
             count = 0;
         }
 
+        invalidate |= list->strides[start_slot + i] != stride;
         list->strides[start_slot + i] = stride;
     }
 
     if (count)
         VK_CALL(vkCmdBindVertexBuffers(list->vk_command_buffer, first, count, buffers, offsets));
 
-    d3d12_command_list_invalidate_current_pipeline(list);
+    if (invalidate)
+        d3d12_command_list_invalidate_current_pipeline(list);
 }
 
 static void STDMETHODCALLTYPE d3d12_command_list_SOSetTargets(ID3D12GraphicsCommandList *iface,