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annotate menu.c @ 915:9e882eca717e

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Initial support for relative mouse mode and skeleton of support for capture mode. Avoid mouse position overflow in absolute mode. Allow absolute mode to be set by ROM DB.
author Michael Pavone <pavone@retrodev.com>
date Tue, 15 Dec 2015 20:01:50 -0800
parents 252dfd29831d
children f7da9b4df0e7
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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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 }
866
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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 }
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118 uint8_t *dest;
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119 for (size_t i = 0; i < num_entries; i++)
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120 {
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121 dest = get_native_pointer(dst, (void **)m68k->mem_pointers, &m68k->options->gen);
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122 if (!dest) {
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123 break;
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124 }
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125 *(dest++) = entries[i].is_dir;
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126 *(dest++) = 1;
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127 dst += 2;
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128 uint8_t term = 0;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
129 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
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130 {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
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131 dest[1] = *cpos;
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
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132 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
133 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>
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diff changeset
134 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 } else {
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list
Michael Pavone <pavone@retrodev.com>
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diff changeset
136 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
137 }
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 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
139 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
140 //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
141 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
142 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
143 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
144 }
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 } 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
146 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
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 }
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 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
150 *(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
151 *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
152 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
153 }
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 }
868
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
155 //terminate list
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
156 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
157 if (dest) {
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
158 *dest = dest[1] = 0;
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
159 free_dir_list(entries, num_entries);
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
160 }
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
161 break;
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 case 1: {
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries
Michael Pavone <pavone@retrodev.com>
parents: 866
diff changeset
164 char buf[4096];
873
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
165 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
166 if (!strcmp(buf, "..")) {
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
167 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
168 while (len > 1) {
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
169 --len;
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
170 if (menu->curpath[len] == '/') {
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
171 menu->curpath[len] = 0;
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
172 break;
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
173 }
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
174 }
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
175 } else {
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 882
diff changeset
176 char *tmp = menu->curpath;
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 882
diff changeset
177 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
178 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
179 free(tmp);
870
f173317ecdb4 More efficient handling of going up one directory in menu
Michael Pavone <pavone@retrodev.com>
parents: 868
diff changeset
180 }
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
181 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
182 }
873
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
183 case 2: {
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
184 char buf[4096];
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
185 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
186 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
187 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
188 m68k->should_return = 1;
7022ba865cfd Initial work for allowing loading a ROM from menu
Michael Pavone <pavone@retrodev.com>
parents: 870
diff changeset
189 break;
873
91bf4d905eba Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
190 }
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
191 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
192 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
193 }
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 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
195 } 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
196 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
197 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
198 }
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
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 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
201 }