mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-11-24 19:20:40 +00:00
85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
#include "include/wgt.h"
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#include "include/mem.h"
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#include "include/multicore.h"
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// ######## REQUIRED FUNCTIONS ########
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unsigned long state0 = 1000;
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unsigned long state1 = 2000;
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unsigned long rand(void)
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{
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unsigned long s1 = state0;
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unsigned long s0 = state1;
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state0 = s0;
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s1 ^= s1 << 23;
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s1 ^= s1 >> 17;
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s1 ^= s0;
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s1 ^= s0 >> 26;
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state1 = s1;
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return state0 + state1;
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}
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// ######## STUB FUNCTIONS ########
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unsigned int kb = 0;
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unsigned int kbhit(void) {
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kb++;
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return kb / 500;
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}
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void getch(void) {
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wait_msec(0x500000);
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kb = 0;
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}
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// ######## WGT EXAMPLES ########
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void wgt16()
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{
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short y, tempx, tempy;
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block screen1;
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set_clock_rate(get_max_clock());
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mem_init();
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vga256 (); /* Initializes WGT system */
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start_core2(minit); // Start the comms engine (core 2)
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while (!comms_up); // Wait for comms up
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screen1 = wnewblock (0, 0, 319, 199);
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wsetscreen (screen1); /* sets to screen1 */
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for (y = 0; y < 200; y++)
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{
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wsetcolor (vgapal[y]);
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wfline (0, 0, 319, y); /* draw something on another screen */
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wfline (319, 199, 0, y);
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}
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wnormscreen (); /* make the putblock go onto the default screen */
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do {
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tempx = mx;
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tempy = my;
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wcopyscreen (tempx, tempy, tempx + 19, tempy + 19, screen1,
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tempx, tempy, NULL);
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/* this means copy a square 20*20 from screen1 to the same spot
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on the default screen. Move the mouse around and watch the black
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wipe away as screen1 copies over. */
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/* NULL means the default screen. */
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} while (!but);
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mdeinit (); /* Deinitialize the mouse handler */
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wfreeblock (screen1);
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}
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void main()
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{
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wgt16();
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while (1);
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}
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