mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-11-24 19:20:40 +00:00
89 lines
1.8 KiB
C
89 lines
1.8 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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void wgt27()
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{
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block skewit; /* Pointer to our block */
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color palette[256]; /* Our palette */
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int i = 0; /* Loop counter */
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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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wreadpalette (0, 255, palette); /* Store our current palette */
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wcls (vgapal[0]); /* Clear screen with black */
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for (i = 100; i > 0; i--) /* Draw 100 filled circles */
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{
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wsetcolor (vgapal[i]);
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wfill_circle (160, 100, i);
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}
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getch();
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wsetcolor (vgapal[0]); /* Use black as active color */
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wbar (0, 0, 104, 199); /* Draw two solid rectangles */
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wbar (216, 0, 319, 199);
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skewit=wnewblock (100, 40, 220, 160); /* Grab a block for skewing */
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getch();
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wcls (vgapal[0]); /* Clear screen with black */
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do {
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for (i = -100; i < 100; i += 2) /* Skew image 2 pixels at a time */
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{
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wskew (100, 40, skewit, i);
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delay(2);
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}
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for (i = 100; i > -100; i -= 2) /* Skew image back to starting pos */
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{
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wskew (100, 40, skewit, i);
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delay(2);
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}
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} while (1);
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}
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void main()
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{
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wgt27();
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while (1);
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}
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