mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-11-12 21:30:40 +00:00
101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
#include "include/wgt.h"
|
|
#include "include/mem.h"
|
|
#include "include/multicore.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 wgt18()
|
|
{
|
|
block screen1; /* one virtual screen */
|
|
block circ[4]; /* and four circle images */
|
|
short y;
|
|
|
|
set_clock_rate(get_max_clock());
|
|
mem_init();
|
|
vga256 ();
|
|
|
|
start_core2(minit); // Start the comms engine (core 2)
|
|
while (!comms_up); // Wait for comms up
|
|
|
|
screen1 = wnewblock (0, 0, 319, 199);
|
|
|
|
for (y = 0; y < 4; y++)
|
|
{
|
|
wsetcolor (vgapal[40 + y * 5]);
|
|
wfill_circle (30, 30, 20 + y * 4);
|
|
/* draw a circle with a box cut out in middle */
|
|
/* Note that the circle turns into a square when we increase the radius
|
|
because I'm still grabbing the same area from the wnewblock... */
|
|
|
|
wsetcolor (vgapal[0]);
|
|
wbar (20, 20, 40, 40);
|
|
circ[y] = wnewblock (10, 10, 50, 50); /* get the sprite */
|
|
}
|
|
|
|
wsetscreen (screen1);
|
|
|
|
do {
|
|
for (y = 0; y < 200; y++)
|
|
{
|
|
wsetcolor (vgapal[y]);
|
|
wline (0, y, 319, y); /* clear the screen by drawing horz lines (fast) */
|
|
}
|
|
|
|
wputblock (mx, my, circ[0], 1);
|
|
wputblock (279 - mx, my, circ[1], 1);
|
|
wputblock (mx, 159 - my, circ[2], 1);
|
|
wputblock (279 - mx, 159 - my, circ[3], 1);
|
|
/* Put four blocks on the screen depending on where the mouse is. */
|
|
/* The first one displayed is the one in the back. */
|
|
|
|
wcopyscreen (0, 0, 319, 199, screen1, 0, 0, NULL);
|
|
/* copy the whole screen */
|
|
/* notice how we never use wnormscreen at all! */
|
|
|
|
} while (but == 0);
|
|
|
|
mdeinit();
|
|
wfreeblock (screen1);
|
|
for (y = 0; y < 4; y ++)
|
|
wfreeblock (circ[y]);
|
|
}
|
|
|
|
void main()
|
|
{
|
|
wgt18();
|
|
while (1);
|
|
}
|