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annotate menu.c @ 933:f7da9b4df0e7

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Log errors opening directories in the menu code
author Michael Pavone <pavone@retrodev.com>
date Wed, 17 Feb 2016 22:42:18 -0800
parents 252dfd29831d
children 05b0a0d4fa40
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
866
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
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diff changeset
1 #include <stdint.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <stdio.h>
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5 #include "blastem.h"
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6 #include "menu.h"
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7 #include "backend.h"
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8 #include "util.h"
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9
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10
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11 uint16_t menu_read_w(uint32_t address, void * context)
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12 {
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13 //This should return the status of the last request with 0
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14 //meaning either the request is complete or no request is pending
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15 //in the current implementation, the operations happen instantly
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16 //in emulated time so we can always return 0
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17 return 0;
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18 }
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19
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20 int menu_dir_sort(const void *a, const void *b)
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21 {
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22 const dir_entry *da, *db;
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23 da = a;
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24 db = b;
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25 if (da->is_dir != db->is_dir) {
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26 return db->is_dir - da->is_dir;
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27 }
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28 return strcasecmp(((dir_entry *)a)->name, ((dir_entry *)b)->name);
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29 }
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30
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31 void copy_string_from_guest(m68k_context *m68k, uint32_t guest_addr, char *buf, size_t maxchars)
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32 {
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33 char *cur;
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34 char *src = NULL;
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35 for (cur = buf; cur < buf+maxchars; cur+=2, guest_addr+=2, src+=2)
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36 {
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37 if (!src || !(guest_addr & 0xFFFF)) {
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38 //we may have walked off the end of a memory block, get a fresh native pointer
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39 src = get_native_pointer(guest_addr, (void **)m68k->mem_pointers, &m68k->options->gen);
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40 if (!src) {
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41 break;
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42 }
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43 }
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44 *cur = src[1];
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45 cur[1] = *src;
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46 if (!*src || !src[1]) {
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47 break;
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48 }
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49 }
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50 //make sure we terminate the string even if we did not hit a null terminator in the source
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51 buf[maxchars-1] = 0;
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52 }
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53
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54 #ifdef __ANDROID__
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55 #include <SDL.h>
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56 #include <jni.h>
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57 char *get_external_storage_path()
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58 {
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59 static char *ret;
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60 if (ret) {
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61 return ret;
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62 }
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63 JNIEnv *env = SDL_AndroidGetJNIEnv();
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64 if ((*env)->PushLocalFrame(env, 8) < 0) {
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65 return NULL;
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66 }
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67
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68 jclass Environment = (*env)->FindClass(env, "android/os/Environment");
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69 jmethodID getExternalStorageDirectory =
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70 (*env)->GetStaticMethodID(env, Environment, "getExternalStorageDirectory", "()Ljava/io/File;");
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71 jobject file = (*env)->CallStaticObjectMethod(env, Environment, getExternalStorageDirectory);
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72 if (!file) {
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73 goto cleanup;
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74 }
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75
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76 jmethodID getAbsolutePath = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, file),
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77 "getAbsolutePath", "()Ljava/lang/String;");
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78 jstring path = (*env)->CallObjectMethod(env, file, getAbsolutePath);
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79
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80 char const *tmp = (*env)->GetStringUTFChars(env, path, NULL);
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81 ret = strdup(tmp);
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82 (*env)->ReleaseStringUTFChars(env, path, tmp);
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83
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84 cleanup:
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85 (*env)->PopLocalFrame(env, NULL);
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86 return ret;
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87 }
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88 #endif
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89
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90 void * menu_write_w(uint32_t address, void * context, uint16_t value)
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91 {
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92 m68k_context *m68k = context;
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93 genesis_context *gen = m68k->system;
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94 menu_context *menu = gen->extra;
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95 if (!menu) {
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96 gen->extra = menu = calloc(1, sizeof(menu_context));
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97 menu->curpath = tern_find_path(config, "ui\0initial_path\0").ptrval;
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98 if (menu->curpath) {
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99 menu->curpath = strdup(menu->curpath);
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100 } else {
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101 #ifdef __ANDROID__
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102 menu->curpath = strdup(get_external_storage_path());
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103 #else
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104 menu->curpath = strdup(get_home_dir());
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105 #endif
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106 }
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107 }
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108 if (menu->state) {
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109 uint32_t dst = menu->latch << 16 | value;
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110 switch (address >> 2)
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111 {
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112 case 0: {
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113 size_t num_entries;
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114 dir_entry *entries = get_dir_list(menu->curpath, &num_entries);
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115 if (entries) {
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116 qsort(entries, num_entries, sizeof(dir_entry), menu_dir_sort);
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117 } else {
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118 warning("Failed to open directory %s\n", menu->curpath);
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119 }
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120 uint8_t *dest;
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121 for (size_t i = 0; i < num_entries; i++)
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122 {
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123 dest = get_native_pointer(dst, (void **)m68k->mem_pointers, &m68k->options->gen);
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124 if (!dest) {
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125 break;
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126 }
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127 *(dest++) = entries[i].is_dir;
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128 *(dest++) = 1;
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diff changeset
129 dst += 2;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
130 uint8_t term = 0;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
131 for (char *cpos = entries[i].name; *cpos; cpos++)
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
132 {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
133 dest[1] = *cpos;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
134 dest[0] = cpos[1];
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
135 if (cpos[1]) {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
136 cpos++;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
137 } else {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
138 term = 1;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
139 }
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
140 dst += 2;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
141 if (!(dst & 0xFFFF)) {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
142 //we may have walked off the end of a memory block, get a fresh native pointer
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
143 dest = get_native_pointer(dst, (void **)m68k->mem_pointers, &m68k->options->gen);
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
144 if (!dest) {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
145 break;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
146 }
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
147 } else {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
148 dest += 2;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
149 }
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
150 }
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
151 if (!term) {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
152 *(dest++) = 0;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
153 *dest = 0;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
154 dst += 2;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
155 }
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
156 }
868
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
157 //terminate list
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
158 dest = get_native_pointer(dst, (void **)m68k->mem_pointers, &m68k->options->gen);
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
159 if (dest) {
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
160 *dest = dest[1] = 0;
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
161 free_dir_list(entries, num_entries);
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
162 }
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
163 break;
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
164 }
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
165 case 1: {
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
166 char buf[4096];
873
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
167 copy_string_from_guest(m68k, dst, buf, sizeof(buf));
870
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
168 if (!strcmp(buf, "..")) {
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
169 size_t len = strlen(menu->curpath);
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
170 while (len > 1) {
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
171 --len;
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
172 if (menu->curpath[len] == '/') {
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
173 menu->curpath[len] = 0;
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
174 break;
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
175 }
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
176 }
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
177 } else {
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 882
diff changeset
178 char *tmp = menu->curpath;
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 882
diff changeset
179 char const *pieces[] = {menu->curpath, "/", buf};
870
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
180 menu->curpath = alloc_concat_m(3, pieces);
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 882
diff changeset
181 free(tmp);
870
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
182 }
866
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
183 break;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
184 }
873
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
185 case 2: {
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
186 char buf[4096];
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
187 copy_string_from_guest(m68k, dst, buf, sizeof(buf));
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 882
diff changeset
188 char const *pieces[] = {menu->curpath, "/", buf};
874
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents: 873
diff changeset
189 gen->next_rom = alloc_concat_m(3, pieces);
872
7022ba865cfd Initial work for allowing loading a ROM from menu
Michael Pavone <pavone@retrodev.com>
parents: 870
diff changeset
190 m68k->should_return = 1;
7022ba865cfd Initial work for allowing loading a ROM from menu
Michael Pavone <pavone@retrodev.com>
parents: 870
diff changeset
191 break;
873
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
192 }
866
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
193 default:
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
194 fprintf(stderr, "WARNING: write to undefined menu port %X\n", address);
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
195 }
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
196 menu->state = 0;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
197 } else {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
198 menu->latch = value;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
199 menu->state = 1;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
200 }
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
201
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
202 return context;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
203 }