new file mode 100644
--- /dev/null
+++ b/window/render.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2009 Thibaut GIRKA
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __RENDER_H__
+#define __RENDER_H__
+
+#include "rect.h"
+#include "surface.h"
+
+Rect DSurfaceRenderText(TextGlyphStream::iterator start, TextGlyphStream::iterator end, const Rect& srcrect,
+						Surface* dst, const Rect& dstrect); // Êž»úÉÁ²è
+
+void DSurfaceFill(Surface* src, const Rect& rect, int r, int g, int b, int a=0xff); // ¥¯¥ê¥¢
+void DSurfaceFillA(Surface* src, const Rect& rect, int r, int g, int b, int a=0xff); // ¥Æ¥­¥¹¥È¥Š¥£¥ó¥É¥ŠÇØ·Ê€ÎÀßÄê
+void DSurfaceMove(Surface* src_o, const Rect& srcrect, Surface* dst_o, const Rect& dstrect); // ¥³¥Ô¡Œ
+void DSurfaceBlitAlpha(Surface* src_o, const Rect& srcrect_o, Surface* dst_o, const Rect& dstrect_o, const unsigned char* alpha, const Rect& alpharect);
+void DSurfaceBlitSaturate(Surface* src_o, const Rect& srcrect, Surface* dst_o, const Rect& dstrect, unsigned char alpha);
+void DSurfaceBlitMultiply(Surface* src_o, const Rect& srcrect_o, Surface* dst_o, const Rect& dstrect_o);
+
+#endif