mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-09-19 21:32:58 +00:00
85 lines
1.5 KiB
C
85 lines
1.5 KiB
C
#include "include/wgt.h"
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#include "include/mem.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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block screen1, screen2;
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color pal[256];
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void crush (block b1, block b2, int dir)
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{
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int q;
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for (q = 199; q >= 0; q -= dir)
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{
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wvertres (0, 0, q, b1);
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wvertres (0, q, 199, b2);
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}
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}
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void wgt21()
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{
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set_clock_rate(get_max_clock());
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mem_init();
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vga256 ();
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extern unsigned char _binary_bin_wgt1_pal_start[];
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wloadpalette (&_binary_bin_wgt1_pal_start[0], pal);
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wsetpalette (0, 255, pal);
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extern unsigned char _binary_bin_wgt1_blk_start[];
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screen1 = wloadblock (&_binary_bin_wgt1_blk_start[0]);
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extern unsigned char _binary_bin_wgt2_blk_start[];
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screen2 = wloadblock (&_binary_bin_wgt2_blk_start[0]);
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wputblock (0, 0, screen1, 0);
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do {
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crush (screen1, screen2, 2);
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crush (screen2, screen1, 2);
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} while (1);
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wfreeblock (screen1); /* remember to free that memory */
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wfreeblock (screen2);
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}
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void main()
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{
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wgt21();
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while (1);
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}
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