mirror of
https://github.com/tomolt/libschrift
synced 2025-07-26 04:24:38 -04:00
84 lines
1.4 KiB
C
84 lines
1.4 KiB
C
/* A stress testing program. Useful for profiling hot spots in libschrift. */
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/* See LICENSE file for copyright and license details. */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <schrift.h>
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#include "arg.h"
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char *argv0;
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static void
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die(const char *msg)
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{
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fprintf(stderr, "%s\n", msg);
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exit(1);
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}
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static void
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usage(void)
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{
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fprintf(stderr,
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"usage: %s [-f font file] [-s size in px]\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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SFT sft;
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SFT_Font *font;
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const char *filename;
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double size;
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unsigned long cp;
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SFT_Glyph gid;
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SFT_GMetrics mtx;
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SFT_Image image;
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int i;
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filename = "../resources/fonts/Ubuntu-Regular.ttf";
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size = 20.0;
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ARGBEGIN {
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case 'f':
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filename = EARGF(usage());
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break;
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case 's':
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size = atof(EARGF(usage()));
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break;
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default:
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usage();
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exit(1);
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} ARGEND
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if (argc) {
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usage();
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exit(1);
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}
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if (!(font = sft_loadfile(filename)))
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die("Can't load font file.");
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memset(&sft, 0, sizeof sft);
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sft.font = font;
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sft.xScale = size;
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sft.yScale = size;
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sft.flags = SFT_DOWNWARD_Y;
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for (i = 0; i < 5000; ++i) {
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for (cp = 32; cp < 128; ++cp) {
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if (sft_lookup(&sft, cp, &gid) < 0)
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continue;
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if (sft_gmetrics(&sft, gid, &mtx) < 0)
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continue;
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image.width = mtx.minWidth;
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image.height = mtx.minHeight;
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image.pixels = malloc((size_t) image.width * (size_t) image.height);
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sft_render(&sft, gid, image);
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free(image.pixels);
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}
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}
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sft_freefont(font);
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return 0;
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}
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