Mercurial > repos > blastem
view paths.c @ 2488:bfd09d3367ba
Fix crash when enabling VGM recording while running Pico or Copera software
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 15 Apr 2024 23:07:18 -0700 |
parents | 2972a8e16ed2 |
children |
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#include <string.h> #include <stdlib.h> #include "blastem.h" #include "util.h" #include "config.h" #include "paths.h" #ifdef _WIN32 #include <windows.h> #else #include <unistd.h> #include <errno.h> #endif static char **current_path; static char *sticky_path_path(void) { if (is_config_in_exe_dir(config)) { return path_append(get_exe_dir(), "sticky_path"); } else { return path_append(get_config_dir(), "sticky_path"); } } static void persist_path(void) { char *pathfname = sticky_path_path(); FILE *f = fopen(pathfname, "wb"); if (f) { if (fwrite(*current_path, 1, strlen(*current_path), f) != strlen(*current_path)) { warning("Failed to save menu path"); } fclose(f); } else { warning("Failed to save menu path: Could not open %s for writing\n", pathfname); } free(pathfname); } #ifdef __ANDROID__ #include <SDL.h> #include <jni.h> static char *get_external_storage_path() { static char *ret; if (ret) { return ret; } JNIEnv *env = SDL_AndroidGetJNIEnv(); if ((*env)->PushLocalFrame(env, 8) < 0) { return NULL; } jclass Environment = (*env)->FindClass(env, "android/os/Environment"); jmethodID getExternalStorageDirectory = (*env)->GetStaticMethodID(env, Environment, "getExternalStorageDirectory", "()Ljava/io/File;"); jobject file = (*env)->CallStaticObjectMethod(env, Environment, getExternalStorageDirectory); if (!file) { goto cleanup; } jmethodID getAbsolutePath = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, file), "getAbsolutePath", "()Ljava/lang/String;"); jstring path = (*env)->CallObjectMethod(env, file, getAbsolutePath); char const *tmp = (*env)->GetStringUTFChars(env, path, NULL); ret = strdup(tmp); (*env)->ReleaseStringUTFChars(env, path, tmp); cleanup: (*env)->PopLocalFrame(env, NULL); return ret; } #endif void get_initial_browse_path(char **dst) { char *base = NULL; char *remember_path = tern_find_path(config, "ui\0remember_path\0", TVAL_PTR).ptrval; if (!remember_path || !strcmp("on", remember_path)) { char *pathfname = sticky_path_path(); FILE *f = fopen(pathfname, "rb"); if (f) { long pathsize = file_size(f); if (pathsize > 0) { base = malloc(pathsize + 1); if (fread(base, 1, pathsize, f) != pathsize) { warning("Error restoring saved file browser path"); free(base); base = NULL; } else { base[pathsize] = 0; } } fclose(f); } free(pathfname); if (!current_path) { atexit(persist_path); current_path = dst; } } if (!base) { base = tern_find_path(config, "ui\0initial_path\0", TVAL_PTR).ptrval; } if (!base){ #ifdef __ANDROID__ base = get_external_storage_path(); #else base = "$HOME"; #endif } tern_node *vars = tern_insert_ptr(NULL, "HOME", get_home_dir()); vars = tern_insert_ptr(vars, "EXEDIR", get_exe_dir()); *dst = replace_vars(base, vars, 1); free(base); tern_free(vars); } char *path_append(const char *base, const char *suffix) { if (!strcmp(suffix, "..")) { #ifdef _WIN32 //handle transition from root of a drive to virtual root if (base[1] == ':' && !base[2]) { return strdup(PATH_SEP); } #endif size_t len = strlen(base); while (len > 0) { --len; if (is_path_sep(base[len])) { if (!len) { //special handling for / len++; } char *ret = malloc(len+1); memcpy(ret, base, len); ret[len] = 0; return ret; } } return strdup(PATH_SEP); } else { #ifdef _WIN32 if (base[0] == PATH_SEP[0] && !base[1]) { //handle transition from virtual root to root of a drive return strdup(suffix); } #endif if (is_path_sep(base[strlen(base) - 1])) { return alloc_concat(base, suffix); } else { char const *pieces[] = {base, PATH_SEP, suffix}; return alloc_concat_m(3, pieces); } } } char *path_current_dir(void) { size_t size = 128; char *res = malloc(size); for (;;) { #ifdef _WIN32 DWORD actual = GetCurrentDirectoryA(size, res); if (actual > size) { res = realloc(res, actual); size = actual; } else { return res; } #else errno = 0; char *tmp = getcwd(res, size); if (!tmp) { if (errno == ERANGE) { size *= 2; res = realloc(res, size); } else { free(res); return NULL; } } else { return res; } #endif } }