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author | Maurice Kalinowski <maurice.kalinowski@qt.io> | 2016-08-12 08:11:16 +0200 |
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committer | Maurice Kalinowski <maurice.kalinowski@qt.io> | 2016-08-17 07:42:13 +0000 |
commit | 35f17de4876921ffdf89edad7492a202f7655a9f (patch) | |
tree | a33e1abec6570b44aa0612b64206cb76a14e3566 /src/angle | |
parent | c0ccea7efe56ca5115097f32f13cf3398ecc2d34 (diff) | |
download | qtbase-35f17de4876921ffdf89edad7492a202f7655a9f.tar.gz |
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
Reviewed-by: Andrew Knight <andrew.knight@intopalo.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Diffstat (limited to 'src/angle')
-rw-r--r-- | src/angle/patches/0012-ANGLE-Fix-initialization-of-zero-sized-window.patch | 32 |
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 + |