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	blind-repeat-tessellation.c - blind - suckless command-line video editing utili…
	git clone git://git.suckless.org/blind
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	blind-repeat-tessellation.c (1151B)
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	1 /* See LICENSE file for copyright and license details. */
	2 #include "common.h"
	3
	4 USAGE("-w width -h height")
	5
	6 int
	7 main(int argc, char *argv[])
	8 {
	9 struct stream stream;
	10 size_t width = 0;
	11 size_t height = 0;
	12 size_t x, y, p, w;
	13 char *buf;
	14
	15 ARGBEGIN {
	16 case 'w':
	17 width = etozu_flag('w', UARGF(), 1, SIZE_MAX);
	18 break;
	19 case 'h':
	20 height = etozu_flag('h', UARGF(), 1, SIZE_MAX);
	21 break;
	22 default:
	23 usage();
	24 } ARGEND;
	25
	26 if (!width \|\| !height \|\| argc)
	27 usage();
	28
	29 eopen_stream(&stream, NULL);
	30 echeck_dimensions(&stream, WIDTH \| HEIGHT, NULL);
	31 x = stream.width, stream.width = width;
	32 y = stream.height, stream.height = height;
	33 fprint_stream_head(stdout, &stream);
	34 efflush(stdout, "<stdout>");
	35 stream.width = x;
	36 stream.height = y;
	37 buf = emalloc(stream.frame_size);
	38
	39 w = width % stream.width;
	40 while (eread_frame(&stream, buf)) {
	41 for (y = 0; y < height; y++) {
	42 p = (y % stream.height) * stream.row_size;
	43 for (x = 0; x < width / stream.width; x++)
	44 ewriteall(STDOUT_FILENO, buf + p, stream…
	45 if (w)
	46 ewriteall(STDOUT_FILENO, buf + p, w * st…
	47 }
	48 }
	49
	50 free(buf);
	51 return 0;
	52 }