--- a/render.h	Sun Jul 07 15:05:50 2013 -0700
+++ b/render.h	Tue Jul 23 23:01:03 2013 -0700
@@ -4,9 +4,17 @@
 #include "vdp.h"
 #include "psg.h"
 #include "ym2612.h"
+
+typedef struct {
+	void *oddbuf;
+	void *evenbuf;
+	int  stride;
+} surface_info;
+
 uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b);
+surface_info render_alloc_surfaces();
 uint8_t render_depth();
-void render_init(int width, int height, char * title, uint32_t fps);
+void render_init(int width, int height, char * title, uint32_t fps, uint8_t use_gl);
 void render_context(vdp_context * context);
 void render_wait_quit(vdp_context * context);
 void render_wait_psg(psg_context * context);