/* Function to draw a single segment of road length */
void bwRoadSegment (GLdouble length, GLdouble width, GLdouble height)
{
GLdouble cuboid_width = 0.75;
GLdouble cur_width = 0;
static GLfloat road_texture[] = {0.3, 0.3, 0.3, 1};
static char first = 1;
if (first)
{
srand(time(NULL));
first = 0;
}
#define RESET_VAL() road_texture[0] = road_texture[1] = road_texture[2] = \
RANDGRAY;
#define PRINT_VALS() printf ("%g %g %g\n", road_texture[0], road_texture[1], road_texture[2]);
while ( cur_width + cuboid_width <= width )
{
glPushMatrix ();
glTranslated (0, 0, cur_width);
glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, road_texture);
bwCuboid (length, cuboid_width, height);
glPopMatrix ();
cur_width += cuboid_width;
RESET_VAL();
}
}
#define RESET_VAL(o, rs, prs) { .offset = o, .reset_shift = rs, \
.p_reset_shift = prs }
#define DF_VAL(o, kis, kiw, kps, kpw, kas, kaw) { .offset = o, .ki_shift = kis,\
.ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas, \
.ka_width = kaw }
#define VCO_CTRL_VAL(uo, lo) { .u_offset = uo, .l_offset = lo }
#define ENABLE_VAL(o, es, hs, bs) { .offset = o, .enable_shift = es, \
.hold_shift = hs, .bypass_shift = bs }
static const struct iproc_pll_ctrl genpll_scr = {
.flags = IPROC_CLK_AON | IPROC_CLK_PLL_SPLIT_STAT_CTRL,
.aon = AON_VAL(0x0, 1, 15, 12),
.reset = RESET_VAL(0x4, 2, 1),
.dig_filter = DF_VAL(0x0, 9, 3, 5, 4, 2, 3),
.ndiv_int = REG_VAL(0x8, 4, 10),
.pdiv = REG_VAL(0x8, 0, 4),
.vco_ctrl = VCO_CTRL_VAL(0x10, 0xc),
.status = REG_VAL(0x0, 27, 1),
};
static const struct iproc_clk_ctrl genpll_scr_clk[] = {
/* bypass_shift, the last value passed into ENABLE_VAL(), is not defined
* in NS2. However, it doesn't appear to be used anywhere, so setting
* it to 0.
*/
[BCM_NS2_GENPLL_SCR_SCR_CLK] = {
.channel = BCM_NS2_GENPLL_SCR_SCR_CLK,
