mirror of https://github.com/kiedtl/fire.git
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/*
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* winsock.h on windows,
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* arpa/inet.h on unix
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* for htons()
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*/
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#if defined(_WIN32) || defined(__WIN32__)
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#include <winsock.h>
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#else
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#include <arpa/inet.h>
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#endif
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include "termbox.h"
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#include "bool.h"
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#include "ff.h"
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static uint16_t
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clr(uint32_t clr)
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{
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uint16_t nclr = (((uint16_t) clr) & 0xff) & 0xffff;
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return nclr | (nclr << 8);
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}
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void
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ff_from_tbscr(uint32_t width, uint32_t height, uint8_t *img, struct tb_cell *colors, FILE *fp)
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{
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/* write farbfeld headers */
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fputs("farbfeld", fp);
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uint32_t tmp;
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tmp = htonl(width);
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fwrite(&tmp, sizeof(tmp), 1, fp);
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tmp = htonl(height);
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fwrite(&tmp, sizeof(tmp), 1, fp);
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/* write image row by row */
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uint16_t *rowbuf = malloc(width * (4 * sizeof(uint16_t)));
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for (size_t y = 0; y < height; ++y) {
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for (size_t x = 0; x < width; ++x) {
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uint32_t color = colors[img[y * width + x]].bg;
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rowbuf[4 * x + 0] = htons(clr(color >> 16));
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rowbuf[4 * x + 1] = htons(clr(color >> 8));
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rowbuf[4 * x + 2] = htons(clr(color));
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rowbuf[4 * x + 3] = htons((uint16_t) 0xffff);
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}
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fwrite(rowbuf, sizeof(uint16_t), width * 4, fp);
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memset(rowbuf, 0, width * (4 * sizeof(uint16_t)));
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}
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}
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