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annotate nuklear_ui/font_win.c @ 1971:80920c21bb52

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Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
author Michael Pavone <pavone@retrodev.com>
date Fri, 08 May 2020 11:40:30 -0700
parents 137dbd05ceab
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #include <windows.h>
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2 #include <shlobj.h>
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3 #include <string.h>
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4 #include "../paths.h"
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5 #include "../util.h"
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6 #include "sfnt.h"
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7
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8 uint8_t *default_font(uint32_t *size_out)
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9 {
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10 static const char *thin[] = {"Thin", NULL};
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11 static const char *extra_light[] = {"ExtraLight", "UltraLight", NULL};
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12 static const char *light[] = {"Light", NULL};
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13 static const char *regular[] = {"Regular", "Normal", "Book", NULL};
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14 static const char *medium[] = {"Medium", NULL};
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15 static const char *semi_bold[] = {"SemiBold", "DemiBold", NULL};
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16 static const char *bold[] = {"Bold", NULL};
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17 static const char *extra_bold[] = {"ExtraBold", "UltraBold", NULL};
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18 static const char *heavy[] = {"Heavy", "Black", NULL};
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19 static const char **weight_to_subfamilies[] = {
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20 NULL,
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21 thin,
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22 extra_light,
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23 light,
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24 regular,
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25 medium,
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26 semi_bold,
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27 bold,
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28 extra_bold,
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29 heavy
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30 };
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31
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32 NONCLIENTMETRICSA metrics = {
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33 .cbSize = sizeof(metrics)
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34 };
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35 char *pref_name = NULL, *pref_prefix = NULL;
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36 const char **pref_sub_families;
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37 if (SystemParametersInfoA(SPI_GETNONCLIENTMETRICS, sizeof(metrics), &metrics, 0)) {
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38 pref_name = metrics.lfMenuFont.lfFaceName;
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39 int32_t weight = metrics.lfMenuFont.lfWeight / 100;
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40 if (weight < 1 || weight > 9) {
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41 weight = 4;
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42 }
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43 pref_sub_families = weight_to_subfamilies[weight];
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44 }
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45 if (pref_name) {
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46 uint32_t prefix_len = 0;
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47 while (pref_name[prefix_len] && pref_name[prefix_len] != ' ')
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48 {
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49 prefix_len++;
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50 }
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51 pref_prefix = malloc(prefix_len + 1);
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52 memcpy(pref_prefix, pref_name, prefix_len);
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53 pref_prefix[prefix_len] = 0;
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54 }
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55 sfnt_table *selected = NULL;
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56 char windows[MAX_PATH];
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57 SHGetFolderPathA(NULL, CSIDL_WINDOWS, NULL, 0, windows);
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58 char *fonts = path_append(windows, "Fonts");
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59 size_t num_entries;
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60 char *tahoma = NULL, *arial = NULL;
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61 dir_entry *entries = get_dir_list(fonts, &num_entries);
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62 char *path = NULL;
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63 for (size_t i = 0; i < num_entries; i++)
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64 {
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65 if (entries[i].is_dir) {
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66 continue;
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67 }
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68 char *ext = path_extension(entries[i].name);
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69 if (!ext || (strcasecmp(ext, "ttf") && strcasecmp(ext, "ttc") && strcasecmp(ext, "dfont"))) {
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70 //not a truetype font, ignore
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71 free(ext);
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72 continue;
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73 }
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74 free(ext);
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75 char *base = basename_no_extension(entries[i].name);
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76 if (pref_prefix && !strncasecmp(base, pref_prefix, 6)) {
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77 path = path_append(fonts, entries[i].name);
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78 FILE *f = fopen(path, "rb");
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79 if (f)
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80 {
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81 long font_size = file_size(f);
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82 uint8_t *blob = malloc(font_size);
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83 if (font_size == fread(blob, 1, font_size, f))
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84 {
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85 sfnt_container *sfnt = load_sfnt(blob, font_size);
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86 if (sfnt) {
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87 selected = sfnt_subfamily_by_names(sfnt, pref_sub_families);
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88 if (!selected) {
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89 sfnt_free(sfnt);
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90 }
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91 } else {
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92 free(blob);
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93 }
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94 } else {
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95 free(blob);
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96 }
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97 fclose(f);
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98 }
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99 free(path);
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100 free(base);
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101 if (selected) {
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102 printf("Found preferred font in %s\n", entries[i].name);
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103 break;
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104 }
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105 } else if (!strcasecmp(base, "tahoma")) {
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106 tahoma = entries[i].name;
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107 } else if (!strcasecmp(base, "arial")) {
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108 arial = entries[i].name;
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109 }
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110 free(base);
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111 }
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112 if (!selected) {
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113 path = NULL;
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114 if (tahoma) {
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115 path = path_append(fonts, tahoma);
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116 } else if (arial) {
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117 path = path_append(fonts, arial);
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118 }
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119 if (path) {
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120 FILE *f = fopen(path, "rb");
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121 if (f)
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122 {
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123 long font_size = file_size(f);
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124 uint8_t *blob = malloc(font_size);
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125 if (font_size == fread(blob, 1, font_size, f))
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126 {
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127 sfnt_container *sfnt = load_sfnt(blob, font_size);
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128 if (sfnt) {
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129 selected = sfnt->tables;
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130 } else {
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131 free(blob);
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132 }
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133 }
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134 fclose(f);
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135 }
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136 free(path);
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137 }
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138 }
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139 free(pref_prefix);
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140 free(fonts);
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141 free_dir_list(entries, num_entries);
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142 if (selected) {
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143 return sfnt_flatten(selected, size_out);
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144 }
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145 return NULL;
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146 }