Add stretching support to AlphaBlend.

configure

@@ -7988,6 +7988,81 @@ _ACEOF
 
                      X_PRE_LIBS="$X_PRE_LIBS -lXv"
 
+fi
+
+        fi
+
+                if test "$ac_cv_header_X11_extensions_Xrender_h" = "yes"
+        then
+              echo "$as_me:$LINENO: checking for XRenderSetPictureTransform in -lXrender" >&5
+echo $ECHO_N "checking for XRenderSetPictureTransform in -lXrender... $ECHO_C" >&6
+if test "${ac_cv_lib_Xrender_XRenderSetPictureTransform+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lXrender $X_LIBS -lXext -lX11 $X_EXTRA_LIBS $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char XRenderSetPictureTransform ();
+int
+main ()
+{
+XRenderSetPictureTransform ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_Xrender_XRenderSetPictureTransform=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_Xrender_XRenderSetPictureTransform=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_Xrender_XRenderSetPictureTransform" >&5
+echo "${ECHO_T}$ac_cv_lib_Xrender_XRenderSetPictureTransform" >&6
+if test $ac_cv_lib_Xrender_XRenderSetPictureTransform = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_XRENDERSETPICTURETRANSFORM 1
+_ACEOF
+
 fi
 
         fi

configure.ac

@@ -257,6 +257,15 @@ then
                   ],,
                   $X_LIBS -lXext -lX11 $X_EXTRA_LIBS)
         fi
+
+        dnl *** Check for Transform functions in Xrender
+        if test "$ac_cv_header_X11_extensions_Xrender_h" = "yes"
+        then
+              AC_CHECK_LIB(Xrender, XRenderSetPictureTransform,
+                [AC_DEFINE(HAVE_XRENDERSETPICTURETRANSFORM, 1,
+                 [Define if Xrender has the XRenderSetPictureTransform function])],,
+                $X_LIBS -lXext -lX11 $X_EXTRA_LIBS)
+        fi
       ]
     ) dnl *** End of X11/Xlib.h check
 

dlls/x11drv/xrender.c

@@ -130,6 +130,9 @@ MAKE_FUNCPTR(XRenderFindVisualFormat)
 MAKE_FUNCPTR(XRenderFreeGlyphSet)
 MAKE_FUNCPTR(XRenderFreePicture)
 MAKE_FUNCPTR(XRenderSetPictureClipRectangles)
+#ifdef HAVE_XRENDERSETPICTURETRANSFORM
+MAKE_FUNCPTR(XRenderSetPictureTransform)
+#endif
 MAKE_FUNCPTR(XRenderQueryExtension)
 #undef MAKE_FUNCPTR
 
@@ -177,6 +180,12 @@ LOAD_FUNCPTR(XRenderFreePicture)
 LOAD_FUNCPTR(XRenderSetPictureClipRectangles)
 LOAD_FUNCPTR(XRenderQueryExtension)
 #undef LOAD_FUNCPTR
+#ifdef HAVE_XRENDERSETPICTURETRANSFORM
+#define LOAD_OPTIONAL_FUNCPTR(f) p##f = wine_dlsym(xrender_handle, #f, NULL, 0);
+LOAD_OPTIONAL_FUNCPTR(XRenderSetPictureTransform)
+#undef LOAD_OPTIONAL_FUNCPTR
+#endif
+
 
         wine_tsx11_lock();
         if(pXRenderQueryExtension(gdi_display, &event_base, &error_base)) {
@@ -1561,9 +1570,13 @@ BOOL X11DRV_AlphaBlend(X11DRV_PDEVICE *devDst, INT xDst, INT yDst, INT widthDst,
     widthSrc  = pts[1].x - pts[0].x;
     heightSrc = pts[1].y - pts[0].y;
 
-
-    if(widthDst != widthSrc || heightDst != heightSrc) {
-        FIXME("Unable to Stretch\n");
+#ifndef HAVE_XRENDERSETPICTURETRANSFORM
+    if(widthDst != widthSrc || heightDst != heightSrc)
+#else
+    if(!pXRenderSetPictureTransform)
+#endif
+    {
+        FIXME("Unable to Stretch, XRenderSetPictureTransform is currently required\n");
         return FALSE;
     }
 
@@ -1624,6 +1637,18 @@ BOOL X11DRV_AlphaBlend(X11DRV_PDEVICE *devDst, INT xDst, INT yDst, INT widthDst,
                                      CPSubwindowMode, &pa);
     TRACE("src_pict %08lx\n", src_pict);
 
+#ifdef HAVE_XRENDERSETPICTURETRANSFORM
+    if(widthDst != widthSrc || heightDst != heightSrc) {
+        double xscale = widthSrc/(double)widthDst;
+        double yscale = heightSrc/(double)heightDst;
+        XTransform xform = {{
+            { XDoubleToFixed(xscale), XDoubleToFixed(0), XDoubleToFixed(0) },
+            { XDoubleToFixed(0), XDoubleToFixed(yscale), XDoubleToFixed(0) },
+            { XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(1) }
+        }};
+        pXRenderSetPictureTransform(gdi_display, src_pict, &xform);
+    }
+#endif
     pXRenderComposite(gdi_display, PictOpOver, src_pict, 0, dst_pict,
                       xSrc, ySrc, 0, 0,
                       xDst + devDst->org.x, yDst + devDst->org.y, widthSrc, heightSrc);

include/config.h.in

@@ -830,6 +830,9 @@
 /* Define if you have the XKB extension */
 #undef HAVE_XKB
 
+/* Define if Xrender has the XRenderSetPictureTransform function */
+#undef HAVE_XRENDERSETPICTURETRANSFORM
+
 /* Define if the X libraries support XVideo */
 #undef HAVE_XVIDEO