56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
#include <MiniFB.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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static uint32_t g_width = 800;
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static uint32_t g_height = 600;
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static uint32_t *g_buffer = 0x0;
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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void
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resize(struct mfb_window *window, int width, int height) {
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g_width = width;
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g_height = height;
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g_buffer = realloc(g_buffer, g_width * g_height * 4);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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int
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main()
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{
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uint32_t i, noise, carry, seed = 0xbeef;
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struct mfb_window *window = mfb_open_ex("Noise Test", g_width, g_height, WF_RESIZABLE);
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if (!window)
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return 0;
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g_buffer = (uint32_t *) malloc(g_width * g_height * 4);
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mfb_set_resize_callback(window, resize);
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mfb_update_state state;
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do {
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for (i = 0; i < g_width * g_height; ++i) {
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noise = seed;
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noise >>= 3;
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noise ^= seed;
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carry = noise & 1;
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noise >>= 1;
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seed >>= 1;
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seed |= (carry << 30);
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noise &= 0xFF;
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g_buffer[i] = MFB_RGB(noise, noise, noise);
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}
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state = mfb_update_ex(window, g_buffer, g_width, g_height);
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if (state != STATE_OK) {
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window = 0x0;
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break;
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}
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} while(mfb_wait_sync(window));
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return 0;
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}
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