foo

[dosdemo] / src / demo.h

diff --git a/src/demo.h b/src/demo.h
index bf3eaa6..b55ad4d 100644 (file)
--- a/src/demo.h
+++ b/src/demo.h
@@ -5,9 +5,7 @@
 
 extern int fb_width, fb_height, fb_bpp;
 extern uint16_t *fb_pixels;    /* system-RAM pixel buffer: use swap_buffers(fb_pixels) */
-/* video memory pointers. might both point to the front buffer if there is not
- * enough memory for page flipping. use swap_buffers(0) to flip. */
-extern uint16_t *vmem_back, *vmem_front;
+extern uint16_t *vmem;         /* visible video memory pointer */
 
 extern unsigned long time_msec;
 extern int mouse_x, mouse_y;
@@ -34,10 +32,7 @@ void demo_quit(void);
 unsigned long get_msec(void);
 void set_palette(int idx, int r, int g, int b);
 
-/* pass 0 to just swap vmem_back/vmem_front with page flipping
- * pass a pointer to a system-ram pixel buffer to copy it to vmem_front,
- * instead of flipping.
- */
+/* if pixels is 0, it defaults to fb_pixels */
 void swap_buffers(void *pixels);
 
 /* call each frame to get 3D viewing spherical coordinates */