mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-11-24 19:20:40 +00:00
124 lines
2.7 KiB
C
124 lines
2.7 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 wgt32()
|
|
{
|
|
int i, t, c, b;
|
|
color pal[256];
|
|
block wgt1;
|
|
short top[320];
|
|
short bot[320];
|
|
|
|
set_clock_rate(get_max_clock());
|
|
mem_init();
|
|
vga256 (); /* Initialize graphics mode */
|
|
|
|
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[];
|
|
wgt1 = wloadblock (&_binary_bin_wgt1_blk_start[0]);
|
|
|
|
wcls (vgapal[0]); /* Clear screen with black */
|
|
wclip (0, 0, 319, 199); /* Use full screen */
|
|
|
|
/* Note: wsline merely stores y coordinates of line in array. You may use
|
|
several calls with various x ranges to make curved lines */
|
|
|
|
wsline (0, 199, 319, 0, top); /* Set array top for diagonal line */
|
|
wsline (0, 199, 319, 199, bot); /* Array bot is horizontal line */
|
|
wwarp (0, 319, top, bot, wgt1, 0); /* Warp image between lines */
|
|
getch (); /* Wait for key */
|
|
// squish it
|
|
|
|
wcls (vgapal[0]); /* Clear screen */
|
|
wsline (0, 100, 100, 0, top); /* Now create arrow shape */
|
|
wsline (101, 70, 218, 70, top);
|
|
wsline (219, 0, 319, 100, top);
|
|
|
|
wsline (0, 100, 100, 199, bot);
|
|
wsline (101, 130, 218, 130, bot);
|
|
wsline (219, 199, 319, 100, bot);
|
|
wwarp (0, 319, top, bot, wgt1, 0); /* Warp image using arrays */
|
|
getch (); /* Wait for keypress */
|
|
// make a double arrow
|
|
|
|
wcls (vgapal[0]); /* Clear screen with black */
|
|
do {
|
|
b =rand() % 100;
|
|
c = (rand() % 100) + 100;
|
|
for (t = 0; t <= 319; t++)
|
|
{
|
|
i = rand() % 2;
|
|
if (i == 0)
|
|
b++;
|
|
else b--;
|
|
|
|
i = rand() % 2;
|
|
if (i == 0)
|
|
c++;
|
|
else c--;
|
|
|
|
if (b > 100)
|
|
b = 100;
|
|
|
|
if (b < 0)
|
|
b = 0;
|
|
if (c > 197)
|
|
c = 197;
|
|
if (c < 100)
|
|
c = 100;
|
|
|
|
top[t] = b; /* Create random wavy lines */
|
|
bot[t] = c;
|
|
}
|
|
wwarp (0, 319, top, bot, wgt1, 0); /* And warp image between them */
|
|
getch (); /* Wait for keypress */
|
|
wcls (vgapal[0]); /* Clear screen with black */
|
|
} while (1); /* End program if Q pressed */
|
|
|
|
wfreeblock (wgt1); /* Free memory from image */
|
|
}
|
|
|
|
void main()
|
|
{
|
|
wgt32();
|
|
while (1);
|
|
}
|