backported fixes from rtxon: BSP tree construction and mouse handling

[dosdemo] / src / demo.h

diff --git a/src/demo.h b/src/demo.h
index e31d596..63489c7 100644 (file)
--- a/src/demo.h
+++ b/src/demo.h
@@ -1,20 +1,46 @@
 #ifndef DEMO_H_
 #define DEMO_H_
 
+#include "inttypes.h"
+
 extern int fb_width, fb_height, fb_bpp;
-extern unsigned char *fb_pixels;
+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_LEFT              = 1,
+       MOUSE_RIGHT             = 2,
+       MOUSE_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);
+
 #endif /* DEMO_H_ */