void fade_and_wait()
{
//vbFXFadeIn(3);
vbDisplayShow();
while(!vbPadKeyDown());
vbDisplayHide();
//vbFXFadeOut(3);
}
void triangle_mainproc()
{
WA[31].head = WRLD_END;
vbDisplayShow();
int poly_count;
/* Bind vector to routine */
vpu_vector = (unsigned long) vpu_int;
frame_begin = 0;
VIP_REGS[INTENB] = 0;
VIP_REGS[INTENB] |= XPEND;
while(!(vbPadKeyDown()))
{
//int i;
/* for(i = 0; i < 384; i++)
{
plot_point(i, i, i/12);
} */
//Synchronize with display
while(!frame_has_begun());
//Draw lines until VIP says that "need to draw"
//Worst case performance test
/*
draw_line(create_point(0, 0, 0), create_point(383, 223, 0));
draw_line(create_point(0, 0, 0), create_point(383, 223, 0));
draw_line(create_point(0, 0, 0), create_point(383, 223, 0));
*/
/* Bresenham test pattern */
/* abs(tan(x/y)) = 0.26 (15 degrees) */
draw_line(create_point(192, 112, 0), create_point(383, 62, 0));
draw_line(create_point(192, 112, 0), create_point(0, 62, 0));
draw_line(create_point(192, 112, 0), create_point(0, 162, 0));
draw_line(create_point(192, 112, 0), create_point(383, 162, 0));
/* abs(tan(x/y)) = sqrt(3) */
draw_line(create_point(192, 112, 0), create_point(258, 0, 0));
draw_line(create_point(192, 112, 0), create_point(126, 0, 0));
draw_line(create_point(192, 112, 0), create_point(126, 223, 0));
draw_line(create_point(192, 112, 0), create_point(258, 223, 0));
/* abs(tan(x/y)) = 1/sqrt(3) (About equal to aspect ratio) */
draw_line(create_point(192, 112, 0), create_point(383, 0, 0));
draw_line(create_point(192, 112, 0), create_point(0, 0, 0));
draw_line(create_point(192, 112, 0), create_point(0, 223, 0));
draw_line(create_point(192, 112, 0), create_point(383, 223, 0));
/* Vertical/horizontal */
draw_line(create_point(192, 112, 0), create_point(383, 112, 0));
draw_line(create_point(192, 112, 0), create_point(192, 0, 0));
draw_line(create_point(192, 112, 0), create_point(0, 112, 0));
draw_line(create_point(192, 112, 0), create_point(192, 223, 0));
/* Bresenham test pattern */
/* abs(tan(x/y)) = 0.26 (15 degrees) */
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {383, 62, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {0, 62, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {0, 162, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {383, 162, 0});
//
///* abs(tan(x/y)) = sqrt{3} */
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {258, 0, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {126, 0, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {126, 223, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {258, 223, 0});
//
///* abs(tan(x/y)) = 1/sqrt{3} (About equal to aspect ratio) */
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {383, 0, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {0, 0, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {0, 223, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {383, 223, 0});
//
///* Vertical/horizontal */
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {383, 112, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {192, 0, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {0, 112, 0});
//draw_line((VB_POINT) {192, 112, 0}, (VB_POINT) {192, 223, 0});
//draw_line(create_point(0, 0, 0), create_point(383, 223, 0));
//draw_line(create_point(0, 0, 0), create_point(383, 223, 0));
//poly_count++;
}
vbDisplayHide();
jump_to_reset();
}
