Add directdrawsink to build and dist it, so it gets built when compiling with...

Add directdrawsink to build and dist it, so it gets built when compiling with MingW on win32 and the required headers...

Original commit message from CVS:
Patch by: Vincent Torri  <vtorri at univ-evry fr>
* configure.ac:
* sys/Makefile.am:
* sys/directdraw/Makefile.am:
Add directdrawsink to build and dist it, so it gets built when
compiling with MingW on win32 and the required headers and libraries
are available (fixes: #392313).
* sys/directdraw/gstdirectdrawsink.c:
(gst_directdrawsink_center_rect), (gst_directdrawsink_show_frame),
(gst_directdrawsink_setup_ddraw),
(gst_directdrawsink_surface_create):
Comment out some unused things and fix some printf format issues in
order to avoid warnings when buildling with MingW (#392313).

sys/directdraw/Makefile.am

+plugin_LTLIBRARIES = libgstdirectdrawsink.la
+
+libgstdirectdrawsink_la_SOURCES =  gstdirectdrawsink.c gstdirectdrawplugin.c
+libgstdirectdrawsink_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
+	$(GST_PLUGINS_BASE_CFLAGS)
+libgstdirectdrawsink_la_LIBADD = $(DIRECTDRAW_LIBS) \
+	$(GST_BASE_LIBS) $(GST_PLUGINS_BASE_LIBS) -lgstvideo-$(GST_MAJORMINOR) \
+	-lgstinterfaces-$(GST_MAJORMINOR)
+libgstdirectdrawsink_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)

sys/directdraw/gstdirectdrawsink.c

@@ -168,6 +168,7 @@ gst_ddrawvideosink_get_format_from_caps (GstCaps * caps,
   return ret;
 }
 
+/*
 static GstCaps *
 gst_ddrawvideosink_get_caps_from_format (DDPIXELFORMAT pixel_format)
 {
@@ -201,6 +202,7 @@ gst_ddrawvideosink_get_caps_from_format (DDPIXELFORMAT pixel_format)
 
   return caps;
 }
+*/
 
 static void
 gst_directdrawsink_center_rect (RECT src, RECT dst, RECT * result)
@@ -241,7 +243,7 @@ gst_directdrawsink_center_rect (RECT src, RECT dst, RECT * result)
   }
 
   GST_CAT_INFO (directdrawsink_debug,
-      "source is %dx%d dest is %dx%d, result is %dx%d with x,y %dx%d",
+      "source is %ldx%ld dest is %ldx%ld, result is %ldx%ld with x,y %ldx%ld",
       src_width, src_height, dst_width, dst_heigth,
       result->right - result->left, result->bottom - result->top, result->left,
       result->right);
@@ -1189,8 +1191,7 @@ gst_directdrawsink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
               "IDirectDrawSurface_Blt returned %s", DDErrorString (hRes));
         else
           GST_CAT_INFO (directdrawsink_debug,
-              "allocated surface was blit to our primary",
-              DDErrorString (hRes));
+              "allocated surface was blit to our primary");
       }
     }
   }
@@ -1212,7 +1213,7 @@ gst_directdrawsink_setup_ddraw (GstDirectDrawSink * ddrawsink)
   /*UUID IDirectDraw7_ID;
 
      //IDirectDraw_QueryInterface()
-     /*create an instance of the ddraw object 
+     create an instance of the ddraw object 
      hRes = DirectDrawCreateEx (DDCREATE_EMULATIONONLY, (void**)&ddrawsink->ddraw_object,
      (REFIID)IID_IDirectDraw7, NULL);
    */
@@ -1679,7 +1680,7 @@ gst_directdrawsink_surface_create (GstDirectDrawSink * ddrawsink,
 
     if (surf_lock_desc.lPitch != pitch) {
       GST_CAT_INFO (directdrawsink_debug,
-          "DDraw stride/pitch %d isn't as expected value %d, let's continue allocating buffer.",
+          "DDraw stride/pitch %ld isn't as expected value %d, let's continue allocating buffer.",
           surf_lock_desc.lPitch, pitch);
 
       /*Unlock the surface as we will change it to use system memory with a GStreamer compatible pitch */
@@ -1688,7 +1689,7 @@ gst_directdrawsink_surface_create (GstDirectDrawSink * ddrawsink,
     }
 
     GST_CAT_INFO (directdrawsink_debug,
-        "allocating a surface of %d bytes (stride=%d)\n", size,
+        "allocating a surface of %d bytes (stride=%ld)\n", size,
         surf_lock_desc.lPitch);
     GST_BUFFER_DATA (surface) = surf_lock_desc.lpSurface;
     GST_BUFFER_SIZE (surface) = surf_lock_desc.lPitch * surface->height;
@@ -1718,7 +1719,9 @@ gst_directdrawsink_surface_create (GstDirectDrawSink * ddrawsink,
   /* Keep a ref to our sink */
   surface->ddrawsink = gst_object_ref (ddrawsink);
 
-beach:
+  /*
+     beach:
+   */
   return surface;
 }