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Gentoo bug #191964
freedesktop.org bug #7447 attachment #11368
Fixed in 1.4 and newer
diff --git a/composite/compalloc.c b/composite/compalloc.c
index f555411..006e808 100644
--- a/composite/compalloc.c
+++ b/composite/compalloc.c
@@ -461,7 +461,6 @@ compNewPixmap (WindowPtr pWin, int x, int y, int w, int h)
ScreenPtr pScreen = pWin->drawable.pScreen;
WindowPtr pParent = pWin->parent;
PixmapPtr pPixmap;
- GCPtr pGC;
pPixmap = (*pScreen->CreatePixmap) (pScreen, w, h, pWin->drawable.depth);
@@ -471,25 +470,63 @@ compNewPixmap (WindowPtr pWin, int x, int y, int w, int h)
pPixmap->screen_x = x;
pPixmap->screen_y = y;
- pGC = GetScratchGC (pWin->drawable.depth, pScreen);
-
- /*
- * Copy bits from the parent into the new pixmap so that it will
- * have "reasonable" contents in case for background None areas.
- */
- if (pGC)
+ if (pParent->drawable.depth == pWin->drawable.depth)
{
- XID val = IncludeInferiors;
+ GCPtr pGC = GetScratchGC (pWin->drawable.depth, pScreen);
- ValidateGC(&pPixmap->drawable, pGC);
- dixChangeGC (serverClient, pGC, GCSubwindowMode, &val, NULL);
- (*pGC->ops->CopyArea) (&pParent->drawable,
- &pPixmap->drawable,
- pGC,
- x - pParent->drawable.x,
- y - pParent->drawable.y,
- w, h, 0, 0);
- FreeScratchGC (pGC);
+ /*
+ * Copy bits from the parent into the new pixmap so that it will
+ * have "reasonable" contents in case for background None areas.
+ */
+ if (pGC)
+ {
+ XID val = IncludeInferiors;
+
+ ValidateGC(&pPixmap->drawable, pGC);
+ dixChangeGC (serverClient, pGC, GCSubwindowMode, &val, NULL);
+ (*pGC->ops->CopyArea) (&pParent->drawable,
+ &pPixmap->drawable,
+ pGC,
+ x - pParent->drawable.x,
+ y - pParent->drawable.y,
+ w, h, 0, 0);
+ FreeScratchGC (pGC);
+ }
+ }
+ else
+ {
+ PictFormatPtr pSrcFormat = compWindowFormat (pParent);
+ PictFormatPtr pDstFormat = compWindowFormat (pWin);
+ XID inferiors = IncludeInferiors;
+ int error;
+
+ PicturePtr pSrcPicture = CreatePicture (None,
+ &pParent->drawable,
+ pSrcFormat,
+ CPSubwindowMode,
+ &inferiors,
+ serverClient, &error);
+
+ PicturePtr pDstPicture = CreatePicture (None,
+ &pPixmap->drawable,
+ pDstFormat,
+ 0, 0,
+ serverClient, &error);
+
+ if (pSrcPicture && pDstPicture)
+ {
+ CompositePicture (PictOpSrc,
+ pSrcPicture,
+ NULL,
+ pDstPicture,
+ x - pParent->drawable.x,
+ y - pParent->drawable.y,
+ 0, 0, 0, 0, w, h);
+ }
+ if (pSrcPicture)
+ FreePicture (pSrcPicture, 0);
+ if (pDstPicture)
+ FreePicture (pDstPicture, 0);
}
return pPixmap;
}
diff --git a/composite/compint.h b/composite/compint.h
index 38b1777..f69595c 100644
--- a/composite/compint.h
+++ b/composite/compint.h
@@ -237,6 +237,9 @@ compCheckTree (ScreenPtr pScreen);
#define compCheckTree(s)
#endif
+PictFormatPtr
+compWindowFormat (WindowPtr pWin);
+
void
compSetPixmap (WindowPtr pWin, PixmapPtr pPixmap);
diff --git a/composite/compwindow.c b/composite/compwindow.c
index a4c4e6f..bfd2946 100644
--- a/composite/compwindow.c
+++ b/composite/compwindow.c
@@ -685,7 +685,7 @@ compGetWindowVisual (WindowPtr pWin)
return 0;
}
-static PictFormatPtr
+PictFormatPtr
compWindowFormat (WindowPtr pWin)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
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