diff options
Diffstat (limited to '.repos/farbfeld/jpg2ff.c')
-rw-r--r-- | .repos/farbfeld/jpg2ff.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/.repos/farbfeld/jpg2ff.c b/.repos/farbfeld/jpg2ff.c deleted file mode 100644 index 360ace4..0000000 --- a/.repos/farbfeld/jpg2ff.c +++ /dev/null @@ -1,90 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include <arpa/inet.h> - -#include <errno.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include <jpeglib.h> - -#include "util.h" - -static void -jpeg_error(j_common_ptr js) -{ - fprintf(stderr, "%s: libjpeg: ", argv0); - (*js->err->output_message)(js); - exit(1); -} - -static void -jpeg_setup_reader(struct jpeg_decompress_struct *s, struct jpeg_error_mgr *e, - uint32_t *w, uint32_t *h) -{ - jpeg_create_decompress(s); - e->error_exit = jpeg_error; - s->err = jpeg_std_error(e); - - jpeg_stdio_src(s, stdin); - jpeg_read_header(s, 1); - *w = s->image_width; - *h = s->image_height; - s->output_components = 3; /* color components per pixel */ - s->out_color_space = JCS_RGB; /* input color space */ - - jpeg_start_decompress(s); -} - -static void -usage(void) -{ - die("usage: %s", argv0); -} - -int -main(int argc, char *argv[]) -{ - struct jpeg_decompress_struct js; - struct jpeg_error_mgr jerr; - uint32_t width, height; - uint16_t *row; - uint8_t *rowin; - size_t rowlen, i; - - /* arguments */ - argv0 = argv[0], argc--, argv++; - - if (argc) { - usage(); - } - - /* prepare */ - jpeg_setup_reader(&js, &jerr, &width, &height); - row = ereallocarray(NULL, width, (sizeof("RGBA") - 1) * sizeof(uint16_t)); - rowlen = width * (sizeof("RGBA") - 1); - rowin = ereallocarray(NULL, width, (sizeof("RGB") - 1) * sizeof(uint8_t)); - - /* write data */ - ff_write_header(width, height); - - while (js.output_scanline < js.output_height) { - jpeg_read_scanlines(&js, &rowin, 1); - - for (i = 0; i < width; ++i) { - row[4 * i + 0] = htons(rowin[3 * i + 0] * 257); - row[4 * i + 1] = htons(rowin[3 * i + 1] * 257); - row[4 * i + 2] = htons(rowin[3 * i + 2] * 257); - row[4 * i + 3] = htons(65535); - } - - efwrite(row, sizeof(uint16_t), rowlen, stdout); - } - - /* clean up */ - jpeg_finish_decompress(&js); - jpeg_destroy_decompress(&js); - - return fshut(stdout, "<stdout>"); -} |