#ifndef DEMO_H_
#define DEMO_H_
-extern int fbwidth, fbheight, fbbpp;
-extern unsigned char *fbpixels;
+#include "inttypes.h"
+
+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 unsigned long time_msec;
+extern int mouse_x, mouse_y;
+extern unsigned int mouse_bmask;
+
+enum {
+ MOUSE_BN_LEFT = 1,
+ MOUSE_BN_RIGHT = 2,
+ MOUSE_BN_MIDDLE = 4
+};
+
+extern float sball_matrix[16];
int demo_init(int argc, char **argv);
void demo_cleanup(void);
void demo_draw(void);
-void demo_keyboard(int key, int state);
+void demo_keyboard(int key, int press);
+
/* defined in main_*.c */
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.
+ */
+void swap_buffers(void *pixels);
+
+/* call each frame to get 3D viewing spherical coordinates */
+void mouse_orbit_update(float *theta, float *phi, float *dist);
+
+void draw_mouse_pointer(uint16_t *fb);
+
#endif /* DEMO_H_ */