annotate paths.c @ 1596:437e80a700aa

Initial heuristics for detecting controller types and showing different labels in UI. Modified controller settings view to first display a list of controllers, only showing mapping after selecting controller
author Michael Pavone <pavone@retrodev.com>
date Sun, 22 Jul 2018 17:48:46 -0700
parents b96f9fae757f
children ab3b465c052c
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1 #include <string.h>
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2 #include <stdlib.h>
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3 #include "blastem.h"
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4 #include "util.h"
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5
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6 static char **current_path;
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7
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8 static void persist_path(void)
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9 {
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10 char const *parts[] = {get_userdata_dir(), PATH_SEP, "sticky_path"};
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11 char *pathfname = alloc_concat_m(3, parts);
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12 FILE *f = fopen(pathfname, "wb");
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13 if (f) {
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14 if (fwrite(*current_path, 1, strlen(*current_path), f) != strlen(*current_path)) {
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15 warning("Failed to save menu path");
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16 }
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17 fclose(f);
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18 } else {
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19 warning("Failed to save menu path: Could not open %s for writing\n", pathfname);
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20
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21 }
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22 free(pathfname);
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23 }
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24
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25 #ifdef __ANDROID__
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26 #include <SDL.h>
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27 #include <jni.h>
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28 static char *get_external_storage_path()
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29 {
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30 static char *ret;
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31 if (ret) {
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32 return ret;
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33 }
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34 JNIEnv *env = SDL_AndroidGetJNIEnv();
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35 if ((*env)->PushLocalFrame(env, 8) < 0) {
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36 return NULL;
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37 }
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38
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39 jclass Environment = (*env)->FindClass(env, "android/os/Environment");
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40 jmethodID getExternalStorageDirectory =
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41 (*env)->GetStaticMethodID(env, Environment, "getExternalStorageDirectory", "()Ljava/io/File;");
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42 jobject file = (*env)->CallStaticObjectMethod(env, Environment, getExternalStorageDirectory);
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43 if (!file) {
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44 goto cleanup;
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45 }
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46
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47 jmethodID getAbsolutePath = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, file),
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48 "getAbsolutePath", "()Ljava/lang/String;");
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49 jstring path = (*env)->CallObjectMethod(env, file, getAbsolutePath);
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50
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51 char const *tmp = (*env)->GetStringUTFChars(env, path, NULL);
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52 ret = strdup(tmp);
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53 (*env)->ReleaseStringUTFChars(env, path, tmp);
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54
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55 cleanup:
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56 (*env)->PopLocalFrame(env, NULL);
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57 return ret;
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58 }
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59 #endif
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60
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61 void get_initial_browse_path(char **dst)
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62 {
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63 *dst = NULL;
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64 char *remember_path = tern_find_path(config, "ui\0remember_path\0", TVAL_PTR).ptrval;
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65 if (!remember_path || !strcmp("on", remember_path)) {
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66 char const *parts[] = {get_userdata_dir(), PATH_SEP, "sticky_path"};
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67 char *pathfname = alloc_concat_m(3, parts);
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68 FILE *f = fopen(pathfname, "rb");
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69 if (f) {
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70 long pathsize = file_size(f);
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71 if (pathsize > 0) {
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72 *dst = malloc(pathsize + 1);
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73 if (fread(*dst, 1, pathsize, f) != pathsize) {
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74 warning("Error restoring saved file browser path");
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75 free(*dst);
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76 *dst = NULL;
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77 } else {
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78 (*dst)[pathsize] = 0;
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79 }
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80 }
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81 fclose(f);
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82 }
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83 free(pathfname);
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84 if (!current_path) {
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85 atexit(persist_path);
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86 current_path = dst;
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87 }
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88 }
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89 if (!*dst) {
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90 *dst = tern_find_path(config, "ui\0initial_path\0", TVAL_PTR).ptrval;
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91 }
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92 if (!*dst){
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93 #ifdef __ANDROID__
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94 *dst = get_external_storage_path();
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95 #else
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96 *dst = "$HOME";
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97 #endif
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98 }
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99 tern_node *vars = tern_insert_ptr(NULL, "HOME", get_home_dir());
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100 vars = tern_insert_ptr(vars, "EXEDIR", get_exe_dir());
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101 *dst = replace_vars(*dst, vars, 1);
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102 tern_free(vars);
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103 }
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104
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105 char *path_append(const char *base, const char *suffix)
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106 {
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107 if (!strcmp(suffix, "..")) {
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108 #ifdef _WIN32
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109 //handle transition from root of a drive to virtual root
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110 if (base[1] == ':' && !base[2]) {
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111 return strdup(PATH_SEP);
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112 }
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113 #endif
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114 size_t len = strlen(base);
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115 while (len > 0) {
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116 --len;
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117 if (is_path_sep(base[len])) {
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118 if (!len) {
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119 //special handling for /
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120 len++;
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121 }
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122 char *ret = malloc(len+1);
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123 memcpy(ret, base, len);
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124 ret[len] = 0;
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125 return ret;
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126 }
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127 }
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128 return strdup(PATH_SEP);
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129 } else {
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130 #ifdef _WIN32
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131 if (base[0] == PATH_SEP[0] && !base[1]) {
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132 //handle transition from virtual root to root of a drive
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133 return strdup(suffix);
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134 }
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135 #endif
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136 if (is_path_sep(base[strlen(base) - 1])) {
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137 return alloc_concat(base, suffix);
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138 } else {
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139 char const *pieces[] = {base, PATH_SEP, suffix};
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140 return alloc_concat_m(3, pieces);
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141 }
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142 }
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143 }