# HG changeset patch
# User Thinker K.F. Li <thinker@branda.to>
# Date 1281319434 -28800
# Node ID 8b7964869f7a9f54dd2adcd532f72a21853f6e1c
# Parent  201cc86720a3a9d3f30cb5d59c0d67ff1f847362
Update window with XImage through XSHM

diff -r 201cc86720a3 -r 8b7964869f7a nodejs/Makefile.am
--- a/nodejs/Makefile.am	Mon Aug 09 09:09:19 2010 +0800
+++ b/nodejs/Makefile.am	Mon Aug 09 10:03:54 2010 +0800
@@ -5,7 +5,7 @@
 	-I$(abs_top_srcdir)/include \
 	-I$(prefix)/include \
 	@pangocairo_CFLAGS@ $(CFLAGS)
-mbfly_node_LDFLAGS = -L$(abs_top_builddir)/src/.libs @pangocairo_LIBS@
+mbfly_node_LDFLAGS = -L$(abs_top_builddir)/src/.libs @pangocairo_LIBS@ -lXext
 
 all: mbfly.node
 clean: clean-mbfly-node
diff -r 201cc86720a3 -r 8b7964869f7a nodejs/mbfly_njs.m4
--- a/nodejs/mbfly_njs.m4	Mon Aug 09 09:09:19 2010 +0800
+++ b/nodejs/mbfly_njs.m4	Mon Aug 09 10:03:54 2010 +0800
@@ -8,6 +8,7 @@
 		 (([MOD], [xnjsmb_mb_rt_objs_mod]))),
         METHOD([redraw_changed], [xnjsmb_redraw_changed], (), 0, []),
 	METHOD([redraw_all], [xnjsmb_redraw_all], (), 0, []),
+	METHOD([flush], [X_njs_MB_flush], (), 0, []),
 	METHOD([path_new], [xnjsmb_path_new], (STR(txt)), 1,
 	       [OBJ([path], [shape_t])], (([MOD], [xnjsmb_mb_rt_objs_mod]))),
 	METHOD([stext_new], [xnjsmb_stext_new],
diff -r 201cc86720a3 -r 8b7964869f7a nodejs/testcase.js
--- a/nodejs/testcase.js	Mon Aug 09 09:09:19 2010 +0800
+++ b/nodejs/testcase.js	Mon Aug 09 10:03:54 2010 +0800
@@ -56,6 +56,7 @@
 	var deg = (i++) * 0.1;
 	coord[2] = (i % 20) * 10;
 	mb_rt.redraw_changed();
+	mb_rt.flush();
     }, 20);
 setTimeout(function() { sys.puts("timeout"); }, 1000);
 
diff -r 201cc86720a3 -r 8b7964869f7a src/Makefile.am
--- a/src/Makefile.am	Mon Aug 09 09:09:19 2010 +0800
+++ b/src/Makefile.am	Mon Aug 09 10:03:54 2010 +0800
@@ -40,7 +40,7 @@
 libmbfly_la_SOURCES += graph_engine_cairo.c
 
 libmbfly_la_CPPFLAGS = @cairo_CFLAGS@ @pangocairo_CFLAGS@
-libmbfly_la_LDFLAGS = @cairo_LIBS@ @pangocairo_LIBS@
+libmbfly_la_LDFLAGS = @cairo_LIBS@ @pangocairo_LIBS@ -lXext
 endif
 
 if SKIA_GRAPH_ENGINE
diff -r 201cc86720a3 -r 8b7964869f7a src/X_supp.c
--- a/src/X_supp.c	Mon Aug 09 09:09:19 2010 +0800
+++ b/src/X_supp.c	Mon Aug 09 10:03:54 2010 +0800
@@ -69,6 +69,23 @@
 #endif
 };
 
+#ifdef XSHM
+static void
+XSHM_update(X_MB_runtime_t *xmb_rt) {
+    GC gc;
+    
+    gc = DefaultGC(xmb_rt->display, DefaultScreen(xmb_rt->display));
+    if(xmb_rt->ximage) {	/* support XSHM */
+	XShmPutImage(xmb_rt->display,
+		     xmb_rt->win,
+		     gc,
+		     xmb_rt->ximage,
+		     0, 0, 0, 0,
+		     xmb_rt->w, xmb_rt->h, 0);
+    }
+}
+#endif
+
 /*! \defgroup xkb X Keyboard Handling
  *
  * Accept keyboard events from X server and delivery it to
@@ -343,6 +360,9 @@
 	rdman_redraw_area(rdman, ex1, ey1, (ex2 - ex1), (ey2 - ey1));
 	eflag = 0;
     }
+#ifdef XSHM
+    XSHM_update(rt);
+#endif
     XFlush(display);
 }
 
@@ -401,6 +421,9 @@
 	    get_now(&now);
 	    mb_tman_handle_timeout(tman, &now);
 	    rdman_redraw_changed(rdman);
+#ifdef XSHM
+	    XSHM_update(rt);
+#endif
 	    XFlush(display);
 	} else if(FD_ISSET(fd, &rfds)){
 	    handle_x_event(rt);
@@ -585,7 +608,7 @@
     xmb_rt->surface_ptn =
 	mbe_pattern_create_for_surface(xmb_rt->surface);
     
-    if(xmb_rt->backend_surface != NULL) /* xshm_init() may create one */
+    if(xmb_rt->backend_surface == NULL) /* xshm_init() may create one */
 	xmb_rt->backend_surface =
 	    mbe_xlib_surface_create(xmb_rt->display,
 				    xmb_rt->win,
@@ -778,7 +801,11 @@
 /*! \brief Flush buffer for the X connection of a runtime object.
  */
 int _X_MB_flush_x_conn_for_nodejs(void *rt) {
-    return XFlush(((X_MB_runtime_t *)rt)->display);
+    X_MB_runtime_t *xmb_rt = (X_MB_runtime_t *)rt;
+#ifdef XSHM
+    XSHM_update(xmb_rt);
+#endif
+    return XFlush(xmb_rt->display);
 }
 
 /* @} */