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From db13a9cf7e41207660f080827983655864df802d Mon Sep 17 00:00:00 2001
From: Oliver Wolff <oliver.wolff@qt.io>
Date: Wed, 11 May 2016 13:51:54 +0200
Subject: [PATCH] ANGLE: Disable support for shared handles in warp mode on
Windows < 8
Shared handles are not supported on Windows 7 and below. If the
according flag is set CreateTexture2D will fail with E_OUTOFMEMORY. The
check already happens with newer ANGLE versions, which we use in 5.7
but has to happen here as well. Otherwise Qt applications running on
Windows 7 and below will crash at startup.
Change-Id: I8f539f16dce298611fb1ec7b2f6804d4a04d04e0
---
.../angle/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp
index 223e2b0..dd554f4 100644
--- a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp
+++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp
@@ -2370,6 +2370,19 @@ unsigned int Renderer11::getReservedFragmentUniformBuffers() const
bool Renderer11::getShareHandleSupport() const
{
+ if (mDriverType == D3D_DRIVER_TYPE_WARP)
+ {
+#if !defined(ANGLE_ENABLE_WINDOWS_STORE)
+ // Warp mode does not support shared handles in Windows versions below Windows 8
+ OSVERSIONINFO result = { sizeof(OSVERSIONINFO), 0, 0, 0, 0, {'\0'}};
+ if (GetVersionEx(&result) &&
+ ((result.dwMajorVersion == 6 && result.dwMinorVersion < 2) || result.dwMajorVersion < 6))
+ {
+ // WARP on Windows 7 doesn't support shared handles
+ return false;
+ }
+#endif // ANGLE_ENABLE_WINDOWS_STORE
+ }
// We only currently support share handles with BGRA surfaces, because
// chrome needs BGRA. Once chrome fixes this, we should always support them.
// PIX doesn't seem to support using share handles, so disable them.
--
2.7.0.windows.1
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