87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/*
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gcc main.c -I/usr/include/freetype2 -lfreetype && ./a.out 12 ../../testdata/luxisr.ttf with_hinting
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*/
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#include <stdio.h>
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#include <ft2build.h>
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#include FT_FREETYPE_H
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void usage(char** argv) {
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fprintf(stderr, "usage: %s font_size font_file [with_hinting|sans_hinting]\n", argv[0]);
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}
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int main(int argc, char** argv) {
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FT_Error error;
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FT_Library library;
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FT_Face face;
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FT_Glyph_Metrics* m;
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FT_Outline* o;
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FT_Int major, minor, patch;
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int i, j, font_size, no_hinting;
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if (argc != 4) {
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usage(argv);
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return 1;
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}
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font_size = atoi(argv[1]);
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if (font_size <= 0) {
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fprintf(stderr, "invalid font_size\n");
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usage(argv);
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return 1;
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}
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if (!strcmp(argv[3], "with_hinting")) {
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no_hinting = 0;
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} else if (!strcmp(argv[3], "sans_hinting")) {
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no_hinting = 1;
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} else {
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fprintf(stderr, "neither \"with_hinting\" nor \"sans_hinting\"\n");
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usage(argv);
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return 1;
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};
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error = FT_Init_FreeType(&library);
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if (error) {
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fprintf(stderr, "FT_Init_FreeType: error #%d\n", error);
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return 1;
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}
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FT_Library_Version(library, &major, &minor, &patch);
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printf("freetype version %d.%d.%d\n", major, minor, patch);
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error = FT_New_Face(library, argv[2], 0, &face);
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if (error) {
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fprintf(stderr, "FT_New_Face: error #%d\n", error);
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return 1;
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}
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error = FT_Set_Char_Size(face, 0, font_size*64, 0, 0);
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if (error) {
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fprintf(stderr, "FT_Set_Char_Size: error #%d\n", error);
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return 1;
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}
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for (i = 0; i < face->num_glyphs; i++) {
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error = FT_Load_Glyph(face, i, no_hinting ? FT_LOAD_NO_HINTING : FT_LOAD_DEFAULT);
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if (error) {
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fprintf(stderr, "FT_Load_Glyph: glyph %d: error #%d\n", i, error);
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return 1;
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}
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if (face->glyph->format != FT_GLYPH_FORMAT_OUTLINE) {
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fprintf(stderr, "glyph format for glyph %d is not FT_GLYPH_FORMAT_OUTLINE\n", i);
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return 1;
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}
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m = &face->glyph->metrics;
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/* Print what Go calls the AdvanceWidth, and then: XMin, YMin, XMax, YMax. */
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printf("%ld %ld %ld %ld %ld;",
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m->horiAdvance,
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m->horiBearingX,
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m->horiBearingY - m->height,
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m->horiBearingX + m->width,
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m->horiBearingY);
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/* Print the glyph points. */
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o = &face->glyph->outline;
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for (j = 0; j < o->n_points; j++) {
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if (j != 0) {
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printf(", ");
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}
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printf("%ld %ld %d", o->points[j].x, o->points[j].y, o->tags[j] & 0x01);
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}
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printf("\n");
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}
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return 0;
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}
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