mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-09-19 13:32:56 +00:00
101 lines
1.8 KiB
C
101 lines
1.8 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 wgt39()
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{
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int i;
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int px[256], py[256];
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color p[256];
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int numpix;
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set_clock_rate(get_max_clock());
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mem_init();
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vga256 (); /* Initialize graphics mode */
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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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numpix = 255;
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extern unsigned char _binary_bin_wgt1_pal_start[];
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wloadpalette (&_binary_bin_wgt1_pal_start[0], p);
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wsetpalette (0, 255, p);
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for (i = 0; i < 256; i++)
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{
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px[i] = 0;
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py[i] = 0;
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}
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do {
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wsetcolor (vgapal[0]);
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wait_msec(0x3E9F); // wait for retrace (ish)
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for (i = numpix; i >= 1; i--)
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{
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wfastputpixel (px[i], py[i]);
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wfastputpixel (319 - px[i], 199 - py[i]);
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px[i] = px[i-1];
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py[i] = py[i-1];
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}
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wsetcolor (vgapal[0]);
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wfastputpixel (px[0], py[0]);
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wfastputpixel (319 - px[0], 199 - py[0]);
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px[0] = mx;
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py[0] = my;
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for (i = 0; i < numpix; i++)
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{
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wsetcolor (vgapal[i]);
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wfastputpixel (px[i], py[i]);
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wfastputpixel (319 - px[i], 199 - py[i]);
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}
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} while (!but);
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mdeinit (); /* Deinitialize the mouse handler */
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}
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void main()
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{
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wgt39();
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while (1);
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}
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