mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-11-24 19:20:40 +00:00
90 lines
1.5 KiB
C
90 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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void wgt08()
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{
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short x;
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mem_init();
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vga256 ();
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wcls (vgapal[0]);
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wsetcolor (vgapal[1]);
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wcircle (160, 100, 50); /* try filling a circle */
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getch ();
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wsetcolor (vgapal[40]);
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wregionfill (160, 100);
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wsetcolor (vgapal[170]);
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wregionfill (0, 0);
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getch ();
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wcls (vgapal[0]);
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for (x = 1; x < 10000; x++) /* try filling 10,000 random pixels */
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{
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wsetcolor (vgapal[rand() % 255]);
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wputpixel (rand() % 320, rand() % 200);
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}
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getch ();
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wsetcolor (vgapal[40]);
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wclip (50, 50, 250, 150); /* fill works with clipping too! */
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wregionfill (160, 100);
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wsetcolor (vgapal[7]);
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wclip (10, 10, 40, 40);
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wregionfill (20, 20);
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wsetcolor (vgapal[9]);
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wclip (260, 160, 300, 190);
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wregionfill (270, 170);
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wsetcolor (vgapal[10]);
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wclip (0, 0, 319, 199);
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wregionfill (0, 0);
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getch ();
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}
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void main()
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{
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wgt08();
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while (1);
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}
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