Recommit r668, which got undone accidentally by r673.
Review URL: http://codereview.appspot.com/4589043
git-svn-id: https://angleproject.googlecode.com/svn/trunk@683 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/common/version.h b/src/common/version.h
index 63eb5b5..c2de131 100644
--- a/src/common/version.h
+++ b/src/common/version.h
@@ -1,7 +1,7 @@
#define MAJOR_VERSION 0
#define MINOR_VERSION 0
#define BUILD_VERSION 0
-#define BUILD_REVISION 682
+#define BUILD_REVISION 683
#define STRINGIFY(x) #x
#define MACRO_STRINGIFY(x) STRINGIFY(x)
diff --git a/src/libEGL/Surface.cpp b/src/libEGL/Surface.cpp
index 118bfbb..e9c02af 100644
--- a/src/libEGL/Surface.cpp
+++ b/src/libEGL/Surface.cpp
@@ -167,6 +167,16 @@
bool useFlipEx = (LOWORD(GetVersion()) >= 0x61) && mDisplay->isD3d9ExDevice();
+ // FlipEx causes unseemly stretching when resizing windows AND when one
+ // draws outside of the WM_PAINT callback. While this is seldom a problem in
+ // single process applications, it is particuarly noticeable in multiprocess
+ // applications. Therefore, if the creator process of our window is not in
+ // the current process, disable use of FlipEx.
+ DWORD windowPID;
+ GetWindowThreadProcessId(mWindow, &windowPID);
+ if(windowPID != GetCurrentProcessId())
+ useFlipEx = false;
+
presentParameters.AutoDepthStencilFormat = mConfig->mDepthStencilFormat;
// We set BackBufferCount = 1 even when we use D3DSWAPEFFECT_FLIPEX.
// We do this because DirectX docs are a bit vague whether to set this to 1
