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annotate nuklear_ui/font_mac.m @ 1559:098c11aaf8f0

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Fix silly bug in handling of Mac Roman font names. Make Mac font search more exhaustive if the faster prefix check fails. Added a bunch of debug printfs in case those aren't sufficient to get things working on other machines
author Michael Pavone <pavone@retrodev.com>
date Wed, 04 Apr 2018 00:01:17 -0700
parents b4914d92308b
children 18ffa9caa00c
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1537
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1 #import <AppKit/AppKit.h>
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2 #include <stddef.h>
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3 #include "../paths.h"
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4 #include "../util.h"
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5 #include "sfnt.h"
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6
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7 sfnt_table *find_font_in_dir(char *path, char *prefix, const char *ps_name)
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8 {
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9 size_t num_entries;
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10 dir_entry *entries = get_dir_list(path, &num_entries);
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098c11aaf8f0 Fix silly bug in handling of Mac Roman font names. Make Mac font search more exhaustive if the faster prefix check fails. Added a bunch of debug printfs in case those aren't sufficient to get things working on other machines
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11 size_t prefix_len = prefix ? strlen(prefix) : 0;
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12 sfnt_table *selected = NULL;
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13 for (size_t i = 0; i < num_entries && !selected; i++)
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14 {
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15 char *ext = path_extension(entries[i].name);
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16 if (!ext || (strcasecmp(ext, "ttf") && strcasecmp(ext, "ttc") && strcasecmp(ext, "dfont"))) {
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17 //not a truetype font, ignore
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18 printf("Skipping %s because of its extension\n", entries[i].name);
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19 free(ext);
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20 continue;
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21 }
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22 free(ext);
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23 if (!prefix || !strncasecmp(entries[i].name, prefix, prefix_len)) {
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24 char *full_path = path_append(path, entries[i].name);
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25 FILE *f = fopen(full_path, "rb");
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26 if (f)
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27 {
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28 long font_size = file_size(f);
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29 uint8_t *blob = malloc(font_size);
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30 if (font_size == fread(blob, 1, font_size, f))
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31 {
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32 sfnt_container *sfnt = load_sfnt(blob, font_size);
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33 if (sfnt) {
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34 printf("Examining font file %s\n", entries[i].name);
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35 for (uint8_t j = 0; j < sfnt->num_fonts && !selected; j++)
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36 {
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37 char *cur_ps = sfnt_name(sfnt->tables + j, SFNT_POSTSCRIPT);
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38 printf("\t%s\n", cur_ps);
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39 if (!strcmp(cur_ps, ps_name)) {
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40 selected = sfnt->tables + j;
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41 }
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42 free(cur_ps);
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43 }
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44 } else {
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45 printf("Failed to load %s as sfnt containern\n", entries[i].name);
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46 free(blob);
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47 }
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48 } else {
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49 free(blob);
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50 }
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51 fclose(f);
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52 }
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53 free(full_path);
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54 }
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55 }
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56 return selected;
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57 }
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58
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59 uint8_t *default_font(uint32_t *size_out)
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60 {
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61 NSFont *sys = [NSFont systemFontOfSize:0];
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62 NSString *name = [sys fontName];
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63 const char *ps_name = [name UTF8String];
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64 const unsigned char *prefix_start = (const unsigned char *)ps_name;
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65 while(*prefix_start && (
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66 *prefix_start < '0' ||
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67 (*prefix_start > 'z' && *prefix_start <= 0x80) ||
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68 (*prefix_start > 'Z' && *prefix_start < 'a') ||
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69 (*prefix_start > '9' && *prefix_start < 'A')
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70 ))
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71 {
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72 prefix_start++;
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73 }
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74 if (!*prefix_start) {
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75 //Didn't find a suitable starting character, just start from the beginning
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76 prefix_start = (const unsigned char *)ps_name;
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77 }
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78 const unsigned char *prefix_end = (const unsigned char *)prefix_start + 1;
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79 while (*prefix_end && *prefix_end >= 'a')
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80 {
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81 prefix_end++;
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82 }
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83 char *prefix = malloc(prefix_end - prefix_start + 1);
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84 memcpy(prefix, prefix_start, prefix_end - prefix_start);
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85 prefix[prefix_end-prefix_start] = 0;
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86 //check /Library/Fonts first
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87 sfnt_table *selected = find_font_in_dir("/Library/Fonts", (char *)prefix, ps_name);
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88 if (!selected) {
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89 selected = find_font_in_dir("/System/Library/Fonts", (char *)prefix, ps_name);
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90 }
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91 if (!selected) {
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92 puts("Check using prefix failed, exhaustively checking fonts");
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93 selected = find_font_in_dir("/Library/Fonts", NULL, ps_name);
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94 }
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95 if (!selected) {
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96 selected = find_font_in_dir("/System/Library/Fonts", NULL, ps_name);
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97 }
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98 if (!selected) {
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99 fatal_error("Failed to find system font %s using prefix %s\n", ps_name, prefix);
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100 }
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101 free(prefix);
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102 return sfnt_flatten(selected, size_out);
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103 }
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104