diff options
Diffstat (limited to 'composite/compinit.c')
| -rw-r--r-- | composite/compinit.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/composite/compinit.c b/composite/compinit.c index 630f1042c..c557eebc4 100644 --- a/composite/compinit.c +++ b/composite/compinit.c @@ -63,6 +63,7 @@ compCloseScreen (int index, ScreenPtr pScreen) pScreen->CloseScreen = cs->CloseScreen; pScreen->BlockHandler = cs->BlockHandler; pScreen->InstallColormap = cs->InstallColormap; + pScreen->ChangeWindowAttributes = cs->ChangeWindowAttributes; pScreen->ReparentWindow = cs->ReparentWindow; pScreen->MoveWindow = cs->MoveWindow; pScreen->ResizeWindow = cs->ResizeWindow; @@ -109,6 +110,33 @@ compInstallColormap (ColormapPtr pColormap) pScreen->InstallColormap = compInstallColormap; } +/* Fake backing store via automatic redirection */ +static Bool +compChangeWindowAttributes(WindowPtr pWin, unsigned long mask) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + CompScreenPtr cs = GetCompScreen (pScreen); + Bool ret; + + pScreen->ChangeWindowAttributes = cs->ChangeWindowAttributes; + ret = pScreen->ChangeWindowAttributes(pWin, mask); + + if (ret && (mask & CWBackingStore)) { + if (pWin->backingStore != NotUseful) { + compRedirectWindow(serverClient, pWin, CompositeRedirectAutomatic); + pWin->backStorage = TRUE; + } else { + compUnredirectWindow(serverClient, pWin, + CompositeRedirectAutomatic); + pWin->backStorage = FALSE; + } + } + + pScreen->ChangeWindowAttributes = compChangeWindowAttributes; + + return ret; +} + static void compScreenUpdate (ScreenPtr pScreen) { @@ -424,6 +452,9 @@ compScreenInit (ScreenPtr pScreen) cs->InstallColormap = pScreen->InstallColormap; pScreen->InstallColormap = compInstallColormap; + cs->ChangeWindowAttributes = pScreen->ChangeWindowAttributes; + pScreen->ChangeWindowAttributes = compChangeWindowAttributes; + cs->BlockHandler = pScreen->BlockHandler; pScreen->BlockHandler = compBlockHandler; |