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annotate paths.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 dda7479f3bbb
children bc68560b4a04
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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 *pathfname = alloc_concat(get_userdata_dir(), PATH_SEP "blastem" PATH_SEP "sticky_path");
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11 FILE *f = fopen(pathfname, "wb");
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12 if (f) {
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13 if (fwrite(*current_path, 1, strlen(*current_path), f) != strlen(*current_path)) {
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14 warning("Failed to save menu path");
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15 }
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16 fclose(f);
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17 } else {
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18 warning("Failed to save menu path: Could not open %s for writing\n", pathfname);
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19
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20 }
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21 free(pathfname);
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22 }
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23
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24 #ifdef __ANDROID__
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25 #include <SDL.h>
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26 #include <jni.h>
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27 static char *get_external_storage_path()
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28 {
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29 static char *ret;
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30 if (ret) {
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31 return ret;
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32 }
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33 JNIEnv *env = SDL_AndroidGetJNIEnv();
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34 if ((*env)->PushLocalFrame(env, 8) < 0) {
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35 return NULL;
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36 }
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37
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38 jclass Environment = (*env)->FindClass(env, "android/os/Environment");
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39 jmethodID getExternalStorageDirectory =
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40 (*env)->GetStaticMethodID(env, Environment, "getExternalStorageDirectory", "()Ljava/io/File;");
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41 jobject file = (*env)->CallStaticObjectMethod(env, Environment, getExternalStorageDirectory);
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42 if (!file) {
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43 goto cleanup;
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44 }
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45
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46 jmethodID getAbsolutePath = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, file),
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47 "getAbsolutePath", "()Ljava/lang/String;");
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48 jstring path = (*env)->CallObjectMethod(env, file, getAbsolutePath);
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49
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50 char const *tmp = (*env)->GetStringUTFChars(env, path, NULL);
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51 ret = strdup(tmp);
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52 (*env)->ReleaseStringUTFChars(env, path, tmp);
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53
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54 cleanup:
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55 (*env)->PopLocalFrame(env, NULL);
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56 return ret;
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57 }
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58 #endif
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59
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60 void get_initial_browse_path(char **dst)
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61 {
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62 char *base = NULL;
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63 char *remember_path = tern_find_path(config, "ui\0remember_path\0", TVAL_PTR).ptrval;
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64 if (!remember_path || !strcmp("on", remember_path)) {
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65 char *pathfname = alloc_concat(get_userdata_dir(), PATH_SEP "blastem" PATH_SEP "sticky_path");
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66 FILE *f = fopen(pathfname, "rb");
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67 if (f) {
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68 long pathsize = file_size(f);
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69 if (pathsize > 0) {
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70 base = malloc(pathsize + 1);
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71 if (fread(base, 1, pathsize, f) != pathsize) {
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72 warning("Error restoring saved file browser path");
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73 free(base);
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74 base = NULL;
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75 } else {
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76 base[pathsize] = 0;
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77 }
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78 }
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79 fclose(f);
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80 }
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81 free(pathfname);
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82 if (!current_path) {
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83 atexit(persist_path);
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84 current_path = dst;
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85 }
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86 }
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87 if (!base) {
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88 base = tern_find_path(config, "ui\0initial_path\0", TVAL_PTR).ptrval;
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89 }
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90 if (!base){
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91 #ifdef __ANDROID__
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92 base = get_external_storage_path();
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93 #else
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94 base = "$HOME";
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95 #endif
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96 }
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97 tern_node *vars = tern_insert_ptr(NULL, "HOME", get_home_dir());
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98 vars = tern_insert_ptr(vars, "EXEDIR", get_exe_dir());
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99 *dst = replace_vars(base, vars, 1);
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100 free(base);
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101 tern_free(vars);
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102 }
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103
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104 char *path_append(const char *base, const char *suffix)
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105 {
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106 if (!strcmp(suffix, "..")) {
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107 #ifdef _WIN32
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108 //handle transition from root of a drive to virtual root
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109 if (base[1] == ':' && !base[2]) {
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110 return strdup(PATH_SEP);
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111 }
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112 #endif
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113 size_t len = strlen(base);
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114 while (len > 0) {
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115 --len;
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116 if (is_path_sep(base[len])) {
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117 if (!len) {
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118 //special handling for /
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119 len++;
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120 }
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121 char *ret = malloc(len+1);
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122 memcpy(ret, base, len);
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123 ret[len] = 0;
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124 return ret;
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125 }
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126 }
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127 return strdup(PATH_SEP);
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128 } else {
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129 #ifdef _WIN32
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130 if (base[0] == PATH_SEP[0] && !base[1]) {
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131 //handle transition from virtual root to root of a drive
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132 return strdup(suffix);
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133 }
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134 #endif
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135 if (is_path_sep(base[strlen(base) - 1])) {
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136 return alloc_concat(base, suffix);
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137 } else {
77a401044935 Fix directory navigation in ROM file chooser in Nuklear UI
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138 char const *pieces[] = {base, PATH_SEP, suffix};
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139 return alloc_concat_m(3, pieces);
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140 }
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141 }
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142 }