mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-11-22 18:20:40 +00:00
85 lines
1.5 KiB
C
85 lines
1.5 KiB
C
#include "include/wgt.h"
|
|
#include "include/mem.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 ########
|
|
|
|
block screen1, screen2;
|
|
color pal[256];
|
|
|
|
void crush (block b1, block b2, int dir)
|
|
{
|
|
int q;
|
|
|
|
for (q = 199; q >= 0; q -= dir)
|
|
{
|
|
wvertres (0, 0, q, b1);
|
|
wvertres (0, q, 199, b2);
|
|
}
|
|
}
|
|
|
|
void wgt21()
|
|
{
|
|
set_clock_rate(get_max_clock());
|
|
mem_init();
|
|
vga256 ();
|
|
|
|
extern unsigned char _binary_bin_wgt1_pal_start[];
|
|
wloadpalette (&_binary_bin_wgt1_pal_start[0], pal);
|
|
wsetpalette (0, 255, pal);
|
|
|
|
extern unsigned char _binary_bin_wgt1_blk_start[];
|
|
screen1 = wloadblock (&_binary_bin_wgt1_blk_start[0]);
|
|
|
|
extern unsigned char _binary_bin_wgt2_blk_start[];
|
|
screen2 = wloadblock (&_binary_bin_wgt2_blk_start[0]);
|
|
|
|
wputblock (0, 0, screen1, 0);
|
|
|
|
do {
|
|
crush (screen1, screen2, 2);
|
|
crush (screen2, screen1, 2);
|
|
} while (1);
|
|
|
|
wfreeblock (screen1); /* remember to free that memory */
|
|
wfreeblock (screen2);
|
|
}
|
|
|
|
void main()
|
|
{
|
|
wgt21();
|
|
while (1);
|
|
}
|