rpi4-osdev/part12-wgt/samples/wgt10.c
2021-03-25 09:20:48 +00:00

87 lines
1.5 KiB
C

#include "include/wgt.h"
#include "include/mem.h"
#include "include/mb.h"
// ######## REQUIRED FUNCTIONS ########
unsigned long state0 = 1000;
unsigned long state1 = 2000;
unsigned long rand(void)
{
unsigned long s1 = state0;
unsigned long s0 = state1;
state0 = s0;
s1 ^= s1 << 23;
s1 ^= s1 >> 17;
s1 ^= s0;
s1 ^= s0 >> 26;
state1 = s1;
return state0 + state1;
}
// ######## STUB FUNCTIONS ########
unsigned int kb = 0;
unsigned int kbhit(void) {
kb++;
return kb / 500;
}
void getch(void) {
wait_msec(0x500000);
kb = 0;
}
// ######## WGT EXAMPLES ########
void wgt10()
{
short x,y;
block part1; /* part of the screen */
set_clock_rate(get_max_clock());
mem_init();
vga256 ();
for (y = 40; y >= 4; y--)
{
wfill_circle (y + 40, y + 10, y); /* draw a pattern */
wsetcolor (vgapal[y + 20]);
}
part1 = wnewblock (0, 0, 160, 100); /* get the circle in a block */
getch();
wcls (0);
for (x = 0; x < 320; x++)
{
wsetcolor (vgapal[x % 255]);
wline (x, 0, x, 199);
}
getch();
wputblock (160, 0, part1, 0); /* normal mode */
wflipblock (part1, 0);
wputblock (160, 100, part1, 1); /* XRAY mode */
wflipblock (part1, 1);
wputblock (0, 100, part1, 0); /* normal mode */
wflipblock (part1, 0);
wputblock (0, 0, part1, 1); /* XRAY mode */
wfreeblock (part1);
}
void main()
{
wgt10();
while (1);
}