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-rw-r--r--src/angle/patches/0012-ANGLE-Fix-initialization-of-zero-sized-window.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/src/angle/patches/0012-ANGLE-Fix-initialization-of-zero-sized-window.patch b/src/angle/patches/0012-ANGLE-Fix-initialization-of-zero-sized-window.patch
new file mode 100644
index 0000000000..fe65af7948
--- /dev/null
+++ b/src/angle/patches/0012-ANGLE-Fix-initialization-of-zero-sized-window.patch
@@ -0,0 +1,32 @@
+From 79d2bac44cb2a0793c00886f0499422ab6ffa09c Mon Sep 17 00:00:00 2001
+From: Maurice Kalinowski <maurice.kalinowski@qt.io>
+Date: Fri, 12 Aug 2016 08:11:16 +0200
+Subject: [PATCH] ANGLE: Fix initialization of zero-sized window
+
+The clientRect might be empty when creating a window of zero size. The
+side effect of a division by zero is that matrix transformation fails
+and hence the swapchain gets into an invalid state.
+
+Change-Id: Idbaed72deadb7b87052ac27e194a40d1810e6f7a
+---
+ .../libANGLE/renderer/d3d/d3d11/winrt/SwapChainPanelNativeWindow.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/winrt/SwapChainPanelNativeWindow.cpp b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/winrt/SwapChainPanelNativeWindow.cpp
+index d3ed35b..548b460 100644
+--- a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/winrt/SwapChainPanelNativeWindow.cpp
++++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/winrt/SwapChainPanelNativeWindow.cpp
+@@ -322,8 +322,8 @@ HRESULT SwapChainPanelNativeWindow::createSwapChain(ID3D11Device *device,
+
+ HRESULT SwapChainPanelNativeWindow::scaleSwapChain(const Size &windowSize, const RECT &clientRect)
+ {
+- Size renderScale = {windowSize.Width / clientRect.right,
+- windowSize.Height / clientRect.bottom};
++ Size renderScale = {windowSize.Width / std::max(LONG(1), clientRect.right),
++ windowSize.Height / std::max(LONG(1), clientRect.bottom)};
+ // Setup a scale matrix for the swap chain
+ DXGI_MATRIX_3X2_F scaleMatrix = {};
+ scaleMatrix._11 = renderScale.Width;
+--
+2.9.2.windows.1
+