mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-11-14 14:20:39 +00:00
90 lines
1.5 KiB
C
90 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 ########
|
|
|
|
void wgt08()
|
|
{
|
|
short x;
|
|
|
|
mem_init();
|
|
vga256 ();
|
|
wcls (vgapal[0]);
|
|
|
|
wsetcolor (vgapal[1]);
|
|
wcircle (160, 100, 50); /* try filling a circle */
|
|
getch ();
|
|
|
|
wsetcolor (vgapal[40]);
|
|
wregionfill (160, 100);
|
|
wsetcolor (vgapal[170]);
|
|
wregionfill (0, 0);
|
|
|
|
getch ();
|
|
|
|
wcls (vgapal[0]);
|
|
for (x = 1; x < 10000; x++) /* try filling 10,000 random pixels */
|
|
{
|
|
wsetcolor (vgapal[rand() % 255]);
|
|
wputpixel (rand() % 320, rand() % 200);
|
|
}
|
|
|
|
getch ();
|
|
wsetcolor (vgapal[40]);
|
|
wclip (50, 50, 250, 150); /* fill works with clipping too! */
|
|
wregionfill (160, 100);
|
|
|
|
wsetcolor (vgapal[7]);
|
|
wclip (10, 10, 40, 40);
|
|
wregionfill (20, 20);
|
|
|
|
wsetcolor (vgapal[9]);
|
|
wclip (260, 160, 300, 190);
|
|
wregionfill (270, 170);
|
|
|
|
wsetcolor (vgapal[10]);
|
|
wclip (0, 0, 319, 199);
|
|
wregionfill (0, 0);
|
|
|
|
getch ();
|
|
}
|
|
|
|
void main()
|
|
{
|
|
wgt08();
|
|
while (1);
|
|
}
|