From 8e649097b0e11d8b975ba321f343142dd97889cb Mon Sep 17 00:00:00 2001 From: Oliver Wolff Date: Wed, 22 Aug 2018 13:12:07 +0200 Subject: [PATCH 5/8] 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 c6d07fc888..3425fad95d 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 @@ -324,8 +324,8 @@ HRESULT SwapChainPanelNativeWindow::createSwapChain(ID3D11Device *device, HRESULT SwapChainPanelNativeWindow::scaleSwapChain(const Size &windowSize, const RECT &clientRect) { - Size renderScale = {windowSize.Width / (float)clientRect.right, - windowSize.Height / (float)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; -- 2.15.0.windows.1