1From b215999d63d6e6b087e53e24a47b8b60520ec9e4 Mon Sep 17 00:00:00 2001
2From: Oliver Wolff <oliver.wolff@qt.io>
3Date: Wed, 11 Mar 2020 13:59:39 +0100
4Subject: [PATCH] ANGLE: Fix severe performance regression
5
6The changed buffer usage priority that was introduced in our ANGLE
7update caused severe performance regressions for Qt applications.
8
9Fixes: QTBUG-73835
10Change-Id: I49839bb272cdeec0027264f2751b88bc149665ad
11---
12 src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h | 2 +-
13 1 file changed, 1 insertion(+), 1 deletion(-)
14
15diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h
16index ddbeeb90d2..f92a68454b 100644
17--- a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h
18+++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h
19@@ -31,7 +31,6 @@ struct TranslatedAttribute;
20 // The order of this enum governs priority of 'getLatestBufferStorage'.
21 enum BufferUsage
22 {
23-    BUFFER_USAGE_SYSTEM_MEMORY,
24     BUFFER_USAGE_STAGING,
25     BUFFER_USAGE_VERTEX_OR_TRANSFORM_FEEDBACK,
26     BUFFER_USAGE_INDEX,
27@@ -40,6 +39,7 @@ enum BufferUsage
28     BUFFER_USAGE_PIXEL_UNPACK,
29     BUFFER_USAGE_PIXEL_PACK,
30     BUFFER_USAGE_UNIFORM,
31+    BUFFER_USAGE_SYSTEM_MEMORY,
32     BUFFER_USAGE_EMULATED_INDEXED_VERTEX,
33
34     BUFFER_USAGE_COUNT,
35--
362.20.1.windows.1
37
38