annotate menu.c @ 953:08346262990b

Remove the int number argument to vdp_int_ack since it is no longer used
author Michael Pavone <pavone@retrodev.com>
date Tue, 12 Apr 2016 21:38:24 -0700
parents 5e4fb650de58
children cbc5b39e5518
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 <errno.h>
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6 #include "blastem.h"
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7 #include "menu.h"
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8 #include "backend.h"
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9 #include "util.h"
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10
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11
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12 uint16_t menu_read_w(uint32_t address, void * context)
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13 {
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14 //This should return the status of the last request with 0
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15 //meaning either the request is complete or no request is pending
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16 //in the current implementation, the operations happen instantly
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17 //in emulated time so we can always return 0
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18 return 0;
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19 }
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20
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21 int menu_dir_sort(const void *a, const void *b)
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22 {
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23 const dir_entry *da, *db;
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24 da = a;
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25 db = b;
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26 if (da->is_dir != db->is_dir) {
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27 return db->is_dir - da->is_dir;
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28 }
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29 return strcasecmp(((dir_entry *)a)->name, ((dir_entry *)b)->name);
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30 }
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31
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32 void copy_string_from_guest(m68k_context *m68k, uint32_t guest_addr, char *buf, size_t maxchars)
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33 {
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34 char *cur;
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35 char *src = NULL;
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36 for (cur = buf; cur < buf+maxchars; cur+=2, guest_addr+=2, src+=2)
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37 {
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38 if (!src || !(guest_addr & 0xFFFF)) {
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39 //we may have walked off the end of a memory block, get a fresh native pointer
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40 src = get_native_pointer(guest_addr, (void **)m68k->mem_pointers, &m68k->options->gen);
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41 if (!src) {
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42 break;
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43 }
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44 }
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45 *cur = src[1];
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46 cur[1] = *src;
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47 if (!*src || !src[1]) {
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48 break;
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49 }
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50 }
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51 //make sure we terminate the string even if we did not hit a null terminator in the source
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52 buf[maxchars-1] = 0;
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53 }
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54
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55 #ifdef __ANDROID__
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56 #include <SDL.h>
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57 #include <jni.h>
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58 char *get_external_storage_path()
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59 {
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60 static char *ret;
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61 if (ret) {
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62 return ret;
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63 }
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64 JNIEnv *env = SDL_AndroidGetJNIEnv();
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65 if ((*env)->PushLocalFrame(env, 8) < 0) {
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66 return NULL;
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67 }
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68
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69 jclass Environment = (*env)->FindClass(env, "android/os/Environment");
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70 jmethodID getExternalStorageDirectory =
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71 (*env)->GetStaticMethodID(env, Environment, "getExternalStorageDirectory", "()Ljava/io/File;");
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72 jobject file = (*env)->CallStaticObjectMethod(env, Environment, getExternalStorageDirectory);
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73 if (!file) {
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74 goto cleanup;
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75 }
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76
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77 jmethodID getAbsolutePath = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, file),
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78 "getAbsolutePath", "()Ljava/lang/String;");
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79 jstring path = (*env)->CallObjectMethod(env, file, getAbsolutePath);
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80
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81 char const *tmp = (*env)->GetStringUTFChars(env, path, NULL);
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82 ret = strdup(tmp);
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83 (*env)->ReleaseStringUTFChars(env, path, tmp);
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84
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85 cleanup:
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86 (*env)->PopLocalFrame(env, NULL);
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87 return ret;
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88 }
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89 #endif
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90
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91 void * menu_write_w(uint32_t address, void * context, uint16_t value)
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92 {
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93 m68k_context *m68k = context;
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94 genesis_context *gen = m68k->system;
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95 menu_context *menu = gen->extra;
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96 if (!menu) {
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97 gen->extra = menu = calloc(1, sizeof(menu_context));
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98 menu->curpath = tern_find_path(config, "ui\0initial_path\0").ptrval;
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99 if (menu->curpath) {
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100 menu->curpath = strdup(menu->curpath);
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101 } else {
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102 #ifdef __ANDROID__
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103 menu->curpath = strdup(get_external_storage_path());
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104 #else
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105 menu->curpath = strdup(get_home_dir());
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106 #endif
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107 }
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108 }
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109 if (menu->state) {
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110 uint32_t dst = menu->latch << 16 | value;
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111 switch (address >> 2)
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112 {
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113 case 0: {
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114 size_t num_entries;
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115 dir_entry *entries = get_dir_list(menu->curpath, &num_entries);
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116 if (entries) {
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117 qsort(entries, num_entries, sizeof(dir_entry), menu_dir_sort);
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118 } else {
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119 warning("Failed to open directory %s: %s\n", menu->curpath, strerror(errno));
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120 }
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121 uint8_t *dest;
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122 for (size_t i = 0; i < num_entries; i++)
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123 {
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124 dest = get_native_pointer(dst, (void **)m68k->mem_pointers, &m68k->options->gen);
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125 if (!dest) {
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126 break;
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127 }
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128 *(dest++) = entries[i].is_dir;
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129 *(dest++) = 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
130 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
131 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
132 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
133 {
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[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
135 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
136 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
137 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
138 } 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
139 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
140 }
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 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
142 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
143 //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
144 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
145 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
146 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
147 }
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 } 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
149 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
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 }
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 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
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 *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
155 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
156 }
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
157 }
868
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
158 //terminate list
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
159 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
160 if (dest) {
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
161 *dest = dest[1] = 0;
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
162 free_dir_list(entries, num_entries);
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
163 }
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
164 break;
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
165 }
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
166 case 1: {
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
167 char buf[4096];
873
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
168 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
169 if (!strcmp(buf, "..")) {
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
170 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
171 while (len > 1) {
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
172 --len;
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
173 if (menu->curpath[len] == '/') {
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
174 menu->curpath[len] = 0;
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
175 break;
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 }
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
178 } else {
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 882
diff changeset
179 char *tmp = menu->curpath;
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 882
diff changeset
180 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
181 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
182 free(tmp);
870
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
183 }
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
184 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
185 }
873
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
186 case 2: {
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
187 char buf[4096];
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
188 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
189 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
190 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
191 m68k->should_return = 1;
7022ba865cfd Initial work for allowing loading a ROM from menu
Michael Pavone <pavone@retrodev.com>
parents: 870
diff changeset
192 break;
949
5e4fb650de58 Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents: 934
diff changeset
193 case 3: {
5e4fb650de58 Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents: 934
diff changeset
194 m68k->should_return = 1;
5e4fb650de58 Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents: 934
diff changeset
195 gen->should_exit = 1;
5e4fb650de58 Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents: 934
diff changeset
196 break;
5e4fb650de58 Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents: 934
diff changeset
197 }
873
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
198 }
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
199 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
200 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
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 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
203 } 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
204 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
205 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
206 }
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
207
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
208 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
209 }