gui.c

   1 /* gameplaySP
   2  *
   3  * Copyright (C) 2006 Exophase <exophase@gmail.com>
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public Licens e as
   6  * published by the Free Software Foundation; either version 2 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #include "common.h"
  20 #include "font.h"
  21
  22 #ifndef _WIN32_WCE
  23
  24 #include <sys/stat.h>
  25 #include <unistd.h>
  26 #include <ctype.h>
  27 #include <dirent.h>
  28
  29 #endif
  30
  31 #define MAX_PATH 1024
  32
  33 // Blatantly stolen and trimmed from MZX (megazeux.sourceforge.net)
  34
  35 #ifdef GP2X_BUILD
  36
  37 #define FILE_LIST_ROWS 20
  38 #define FILE_LIST_POSITION 5
  39 #define DIR_LIST_POSITION 260
  40
  41 #else
  42
  43 #define FILE_LIST_ROWS 25
  44 #define FILE_LIST_POSITION 5
  45 #define DIR_LIST_POSITION (resolution_width * 3 / 4)
  46
  47 #endif
  48
  49 #ifdef PSP_BUILD
  50
  51 #define COLOR_BG            color16(2, 8, 10)
  52
  53 #define color16(red, green, blue)                                             \
  54   (blue << 11) | (green << 5) | red                                           \
  55
  56 #else
  57
  58 #define COLOR_BG            color16(0, 0, 0)
  59
  60 #define color16(red, green, blue)                                             \
  61   (red << 11) | (green << 5) | blue                                           \
  62
  63 #endif
  64
  65 #define COLOR_ROM_INFO      color16(22, 36, 26)
  66 #define COLOR_ACTIVE_ITEM   color16(31, 63, 31)
  67 #define COLOR_INACTIVE_ITEM color16(13, 40, 18)
  68 #define COLOR_FRAMESKIP_BAR color16(15, 31, 31)
  69 #define COLOR_HELP_TEXT     color16(16, 40, 24)
  70
  71 #ifdef PSP_BUILD
  72   static const char *clock_speed_options[] =
  73   {
  74     "33MHz", "66MHz", "100MHz", "133MHz", "166MHz", "200MHz", "233MHz",
  75     "266MHz", "300MHz", "333MHz"
  76   };
  77   #define menu_get_clock_speed() \
  78     clock_speed = (clock_speed_number + 1) * 33
  79   #define get_clock_speed_number() \
  80     clock_speed_number = (clock_speed / 33) - 1
  81 #elif defined(WIZ_BUILD)
  82   static const char *clock_speed_options[] =
  83   {
  84     "300MHz", "333MHz", "366MHz", "400MHz", "433MHz",
  85     "466MHz", "500MHz", "533MHz", "566MHz", "600MHz",
  86     "633MHz", "666MHz", "700MHz", "733MHz", "766MHz",
  87     "800MHz", "833MHz", "866MHz", "900MHz"
  88   };
  89   #define menu_get_clock_speed() \
  90     clock_speed = 300 + (clock_speed_number * 3333) / 100
  91   #define get_clock_speed_number() \
  92     clock_speed_number = (clock_speed - 300) / 33
  93 #elif defined(GP2X_BUILD)
  94   static const char *clock_speed_options[] =
  95   {
  96     "150MHz", "160MHz", "170MHz", "180MHz", "190MHz",
  97     "200MHz", "210MHz", "220MHz", "230MHz", "240MHz",
  98     "250MHz", "260MHz", "270MHz", "280MHz", "290MHz"
  99   };
 100   #define menu_get_clock_speed() \
 101     clock_speed = 150 + clock_speed_number * 10
 102   #define get_clock_speed_number() \
 103     clock_speed_number = (clock_speed - 150) / 10
 104 #else
 105   static const char *clock_speed_options[] =
 106   {
 107     "0"
 108   };
 109   #define menu_get_clock_speed()
 110   #define get_clock_speed_number()
 111 #endif
 112
 113
 114 int sort_function(const void *dest_str_ptr, const void *src_str_ptr)
 115 {
 116   char *dest_str = *((char **)dest_str_ptr);
 117   char *src_str = *((char **)src_str_ptr);
 118
 119   if(src_str[0] == '.')
 120     return 1;
 121
 122   if(dest_str[0] == '.')
 123     return -1;
 124
 125   return strcasecmp(dest_str, src_str);
 126 }
 127
 128 s32 load_file(const char **wildcards, char *result)
 129 {
 130   DIR *current_dir;
 131   struct dirent *current_file;
 132   struct stat file_info;
 133   char current_dir_name[MAX_PATH];
 134   char current_dir_short[81];
 135   u32 current_dir_length;
 136   u32 total_filenames_allocated;
 137   u32 total_dirnames_allocated;
 138   char **file_list;
 139   char **dir_list;
 140   u32 num_files;
 141   u32 num_dirs;
 142   char *file_name;
 143   u32 file_name_length;
 144   u32 ext_pos = -1;
 145   u32 chosen_file, chosen_dir;
 146   s32 return_value = 1;
 147   s32 current_file_selection;
 148   s32 current_file_scroll_value;
 149   u32 current_dir_selection;
 150   u32 current_dir_scroll_value;
 151   s32 current_file_in_scroll;
 152   u32 current_dir_in_scroll;
 153   u32 current_file_number, current_dir_number;
 154   u32 current_column = 0;
 155   u32 repeat;
 156   u32 i;
 157   gui_action_type gui_action;
 158
 159   while(return_value == 1)
 160   {
 161     current_file_selection = 0;
 162     current_file_scroll_value = 0;
 163     current_dir_selection = 0;
 164     current_dir_scroll_value = 0;
 165     current_file_in_scroll = 0;
 166     current_dir_in_scroll = 0;
 167
 168     total_filenames_allocated = 32;
 169     total_dirnames_allocated = 32;
 170     file_list = (char **)malloc(sizeof(char *) * 32);
 171     dir_list = (char **)malloc(sizeof(char *) * 32);
 172     memset(file_list, 0, sizeof(char *) * 32);
 173     memset(dir_list, 0, sizeof(char *) * 32);
 174
 175     num_files = 0;
 176     num_dirs = 0;
 177     chosen_file = 0;
 178     chosen_dir = 0;
 179
 180     getcwd(current_dir_name, MAX_PATH);
 181
 182     current_dir = opendir(current_dir_name);
 183
 184     do
 185     {
 186       if(current_dir)
 187         current_file = readdir(current_dir);
 188       else
 189         current_file = NULL;
 190
 191       if(current_file)
 192       {
 193         file_name = current_file->d_name;
 194         file_name_length = strlen(file_name);
 195
 196         if((stat(file_name, &file_info) >= 0) &&
 197          ((file_name[0] != '.') || (file_name[1] == '.')))
 198         {
 199           if(S_ISDIR(file_info.st_mode))
 200           {
 201             dir_list[num_dirs] = malloc(file_name_length + 1);
 202
 203             sprintf(dir_list[num_dirs], "%s", file_name);
 204
 205             num_dirs++;
 206           }
 207           else
 208           {
 209             // Must match one of the wildcards, also ignore the .
 210             if(file_name_length >= 4)
 211             {
 212               if(file_name[file_name_length - 4] == '.')
 213                 ext_pos = file_name_length - 4;
 214               else
 215
 216               if(file_name[file_name_length - 3] == '.')
 217                 ext_pos = file_name_length - 3;
 218
 219               else
 220                 ext_pos = 0;
 221
 222               for(i = 0; wildcards[i] != NULL; i++)
 223               {
 224                 if(!strcasecmp((file_name + ext_pos),
 225                  wildcards[i]))
 226                 {
 227                   file_list[num_files] =
 228                    malloc(file_name_length + 1);
 229
 230                   sprintf(file_list[num_files], "%s", file_name);
 231
 232                   num_files++;
 233                   break;
 234                 }
 235               }
 236             }
 237           }
 238         }
 239
 240         if(num_files == total_filenames_allocated)
 241         {
 242           file_list = (char **)realloc(file_list, sizeof(char *) *
 243            total_filenames_allocated * 2);
 244           memset(file_list + total_filenames_allocated, 0,
 245            sizeof(char *) * total_filenames_allocated);
 246           total_filenames_allocated *= 2;
 247         }
 248
 249         if(num_dirs == total_dirnames_allocated)
 250         {
 251           dir_list = (char **)realloc(dir_list, sizeof(char *) *
 252            total_dirnames_allocated * 2);
 253           memset(dir_list + total_dirnames_allocated, 0,
 254            sizeof(char *) * total_dirnames_allocated);
 255           total_dirnames_allocated *= 2;
 256         }
 257       }
 258     } while(current_file);
 259
 260     qsort((void *)file_list, num_files, sizeof(char *), sort_function);
 261     qsort((void *)dir_list, num_dirs, sizeof(char *), sort_function);
 262
 263     closedir(current_dir);
 264
 265     current_dir_length = strlen(current_dir_name);
 266
 267     if(current_dir_length > 80)
 268     {
 269
 270 #ifdef GP2X_BUILD
 271     snprintf(current_dir_short, 80,
 272      "...%s", current_dir_name + current_dir_length - 77);
 273 #else
 274     memcpy(current_dir_short, "...", 3);
 275       memcpy(current_dir_short + 3,
 276        current_dir_name + current_dir_length - 77, 77);
 277       current_dir_short[80] = 0;
 278 #endif
 279     }
 280     else
 281     {
 282 #ifdef GP2X_BUILD
 283       snprintf(current_dir_short, 80, "%s", current_dir_name);
 284 #else
 285       memcpy(current_dir_short, current_dir_name,
 286        current_dir_length + 1);
 287 #endif
 288     }
 289
 290     repeat = 1;
 291
 292     if(num_files == 0)
 293       current_column = 1;
 294
 295     clear_screen(COLOR_BG);
 296   {
 297     while(repeat)
 298     {
 299       flip_screen();
 300
 301       print_string(current_dir_short, COLOR_ACTIVE_ITEM, COLOR_BG, 0, 0);
 302 #ifdef GP2X_BUILD
 303       print_string("Press X to return to the main menu.",
 304        COLOR_HELP_TEXT, COLOR_BG, 20, 220);
 305 #else
 306       print_string("Press X to return to the main menu.",
 307        COLOR_HELP_TEXT, COLOR_BG, 20, 260);
 308 #endif
 309
 310       for(i = 0, current_file_number = i + current_file_scroll_value;
 311        i < FILE_LIST_ROWS; i++, current_file_number++)
 312       {
 313         if(current_file_number < num_files)
 314         {
 315           if((current_file_number == current_file_selection) &&
 316            (current_column == 0))
 317           {
 318             print_string(file_list[current_file_number], COLOR_ACTIVE_ITEM,
 319              COLOR_BG, FILE_LIST_POSITION, ((i + 1) * 10));
 320           }
 321           else
 322           {
 323             print_string(file_list[current_file_number], COLOR_INACTIVE_ITEM,
 324              COLOR_BG, FILE_LIST_POSITION, ((i + 1) * 10));
 325           }
 326         }
 327       }
 328
 329       for(i = 0, current_dir_number = i + current_dir_scroll_value;
 330        i < FILE_LIST_ROWS; i++, current_dir_number++)
 331       {
 332         if(current_dir_number < num_dirs)
 333         {
 334           if((current_dir_number == current_dir_selection) &&
 335            (current_column == 1))
 336           {
 337             print_string(dir_list[current_dir_number], COLOR_ACTIVE_ITEM,
 338              COLOR_BG, DIR_LIST_POSITION, ((i + 1) * 10));
 339           }
 340           else
 341           {
 342             print_string(dir_list[current_dir_number], COLOR_INACTIVE_ITEM,
 343              COLOR_BG, DIR_LIST_POSITION, ((i + 1) * 10));
 344           }
 345         }
 346       }
 347
 348       gui_action = get_gui_input();
 349
 350       switch(gui_action)
 351       {
 352         case CURSOR_DOWN:
 353           if(current_column == 0)
 354           {
 355             if(current_file_selection < (num_files - 1))
 356             {
 357               current_file_selection++;
 358               if(current_file_in_scroll == (FILE_LIST_ROWS - 1))
 359               {
 360                 clear_screen(COLOR_BG);
 361                 current_file_scroll_value++;
 362               }
 363               else
 364               {
 365                 current_file_in_scroll++;
 366               }
 367             }
 368             else
 369             {
 370               clear_screen(COLOR_BG);
 371               current_file_selection = 0;
 372               current_file_scroll_value = 0;
 373               current_file_in_scroll = 0;
 374             }
 375           }
 376           else
 377           {
 378             if(current_dir_selection < (num_dirs - 1))
 379             {
 380               current_dir_selection++;
 381               if(current_dir_in_scroll == (FILE_LIST_ROWS - 1))
 382               {
 383                 clear_screen(COLOR_BG);
 384                 current_dir_scroll_value++;
 385               }
 386               else
 387               {
 388                 current_dir_in_scroll++;
 389               }
 390             }
 391           }
 392
 393           break;
 394
 395         case CURSOR_R:
 396           if (current_column != 0)
 397             break;
 398           clear_screen(COLOR_BG);
 399           current_file_selection += FILE_LIST_ROWS;
 400           if (current_file_selection > num_files - 1)
 401             current_file_selection = num_files - 1;
 402           current_file_scroll_value = current_file_selection - FILE_LIST_ROWS / 2;
 403           if (current_file_scroll_value < 0)
 404           {
 405             current_file_scroll_value = 0;
 406             current_file_in_scroll = current_file_selection;
 407           }
 408           else
 409           {
 410             current_file_in_scroll = FILE_LIST_ROWS / 2;
 411           }
 412           break;
 413
 414         case CURSOR_UP:
 415           if(current_column == 0)
 416           {
 417             if(current_file_selection)
 418             {
 419               current_file_selection--;
 420               if(current_file_in_scroll == 0)
 421               {
 422                 clear_screen(COLOR_BG);
 423                 current_file_scroll_value--;
 424               }
 425               else
 426               {
 427                 current_file_in_scroll--;
 428               }
 429             }
 430             else
 431             {
 432               clear_screen(COLOR_BG);
 433               current_file_selection = num_files - 1;
 434               current_file_in_scroll = FILE_LIST_ROWS - 1;
 435               if (current_file_in_scroll > num_files - 1)
 436                 current_file_in_scroll = num_files - 1;
 437               current_file_scroll_value = num_files - FILE_LIST_ROWS;
 438               if (current_file_scroll_value < 0)
 439                 current_file_scroll_value = 0;
 440             }
 441           }
 442           else
 443           {
 444             if(current_dir_selection)
 445             {
 446               current_dir_selection--;
 447               if(current_dir_in_scroll == 0)
 448               {
 449                 clear_screen(COLOR_BG);
 450                 current_dir_scroll_value--;
 451               }
 452               else
 453               {
 454                 current_dir_in_scroll--;
 455               }
 456             }
 457           }
 458           break;
 459
 460         case CURSOR_L:
 461           if (current_column != 0)
 462             break;
 463           clear_screen(COLOR_BG);
 464           current_file_selection -= FILE_LIST_ROWS;
 465           if (current_file_selection < 0)
 466             current_file_selection = 0;
 467           current_file_scroll_value = current_file_selection - FILE_LIST_ROWS / 2;
 468           if (current_file_scroll_value < 0)
 469           {
 470             current_file_scroll_value = 0;
 471             current_file_in_scroll = current_file_selection;
 472           }
 473           else
 474           {
 475             current_file_in_scroll = FILE_LIST_ROWS / 2;
 476           }
 477           break;
 478
 479          case CURSOR_RIGHT:
 480           if(current_column == 0)
 481           {
 482             if(num_dirs != 0)
 483               current_column = 1;
 484           }
 485           break;
 486
 487         case CURSOR_LEFT:
 488           if(current_column == 1)
 489           {
 490             if(num_files != 0)
 491               current_column = 0;
 492           }
 493           break;
 494
 495         case CURSOR_SELECT:
 496           if(current_column == 1)
 497           {
 498             repeat = 0;
 499             chdir(dir_list[current_dir_selection]);
 500           }
 501           else
 502           {
 503             if(num_files != 0)
 504             {
 505               repeat = 0;
 506               return_value = 0;
 507               strcpy(result, file_list[current_file_selection]);
 508             }
 509           }
 510           break;
 511
 512         case CURSOR_BACK:
 513 #ifdef PSP_BUILD
 514           if(!strcmp(current_dir_name, "ms0:/PSP"))
 515             break;
 516 #endif
 517           repeat = 0;
 518           chdir("..");
 519           break;
 520
 521         case CURSOR_EXIT:
 522           return_value = -1;
 523           repeat = 0;
 524           break;
 525
 526         default:
 527           break;
 528       }
 529     }
 530   }
 531
 532     for(i = 0; i < num_files; i++)
 533     {
 534       free(file_list[i]);
 535     }
 536     free(file_list);
 537
 538     for(i = 0; i < num_dirs; i++)
 539     {
 540       free(dir_list[i]);
 541     }
 542     free(dir_list);
 543   }
 544
 545   clear_screen(COLOR_BG);
 546
 547   return return_value;
 548 }
 549
 550 typedef enum
 551 {
 552   NUMBER_SELECTION_OPTION = 0x01,
 553   STRING_SELECTION_OPTION = 0x02,
 554   SUBMENU_OPTION          = 0x04,
 555   ACTION_OPTION           = 0x08
 556 } menu_option_type_enum;
 557
 558 struct _menu_type
 559 {
 560   void (* init_function)();
 561   void (* passive_function)();
 562   struct _menu_option_type *options;
 563   u32 num_options;
 564 };
 565
 566 struct _menu_option_type
 567 {
 568   void (* action_function)();
 569   void (* passive_function)();
 570   struct _menu_type *sub_menu;
 571   const char *display_string;
 572   void *options;
 573   u32 *current_option;
 574   u32 num_options;
 575   const char *help_string;
 576   u32 line_number;
 577   menu_option_type_enum option_type;
 578 };
 579
 580 typedef struct _menu_option_type menu_option_type;
 581 typedef struct _menu_type menu_type;
 582
 583 #define make_menu(name, init_function, passive_function)                      \
 584   menu_type name##_menu =                                                     \
 585   {                                                                           \
 586     init_function,                                                            \
 587     passive_function,                                                         \
 588     name##_options,                                                           \
 589     sizeof(name##_options) / sizeof(menu_option_type)                         \
 590   }                                                                           \
 591
 592 #define gamepad_config_option(display_string, number)                         \
 593 {                                                                             \
 594   NULL,                                                                       \
 595   menu_fix_gamepad_help,                                                      \
 596   NULL,                                                                       \
 597   display_string ": %s",                                                      \
 598   gamepad_config_buttons,                                                     \
 599   gamepad_config_map + gamepad_config_line_to_button[number],                 \
 600   sizeof(gamepad_config_buttons) / sizeof(gamepad_config_buttons[0]),         \
 601   gamepad_help[gamepad_config_map[                                            \
 602    gamepad_config_line_to_button[number]]],                                   \
 603   number,                                                                     \
 604   STRING_SELECTION_OPTION                                                     \
 605 }                                                                             \
 606
 607 #define analog_config_option(display_string, number)                          \
 608 {                                                                             \
 609   NULL,                                                                       \
 610   menu_fix_gamepad_help,                                                      \
 611   NULL,                                                                       \
 612   display_string ": %s",                                                      \
 613   gamepad_config_buttons,                                                     \
 614   gamepad_config_map + number + 12,                                           \
 615   sizeof(gamepad_config_buttons) / sizeof(gamepad_config_buttons[0]),         \
 616   gamepad_help[gamepad_config_map[number + 12]],                              \
 617   number + 2,                                                                 \
 618   STRING_SELECTION_OPTION                                                     \
 619 }                                                                             \
 620
 621 #define cheat_option(number)                                                  \
 622 {                                                                             \
 623   NULL,                                                                       \
 624   NULL,                                                                       \
 625   NULL,                                                                       \
 626   cheat_format_str[number],                                                   \
 627   enable_disable_options,                                                     \
 628   &(cheats[number].cheat_active),                                             \
 629   2,                                                                          \
 630   "Activate/deactivate this cheat code.",                                     \
 631   number,                                                                     \
 632   STRING_SELECTION_OPTION                                                     \
 633 }                                                                             \
 634
 635 #define action_option(action_function, passive_function, display_string,      \
 636  help_string, line_number)                                                    \
 637 {                                                                             \
 638   action_function,                                                            \
 639   passive_function,                                                           \
 640   NULL,                                                                       \
 641   display_string,                                                             \
 642   NULL,                                                                       \
 643   NULL,                                                                       \
 644   0,                                                                          \
 645   help_string,                                                                \
 646   line_number,                                                                \
 647   ACTION_OPTION                                                               \
 648 }                                                                             \
 649
 650 #define submenu_option(sub_menu, display_string, help_string, line_number)    \
 651 {                                                                             \
 652   NULL,                                                                       \
 653   NULL,                                                                       \
 654   sub_menu,                                                                   \
 655   display_string,                                                             \
 656   NULL,                                                                       \
 657   NULL,                                                                       \
 658   sizeof(sub_menu) / sizeof(menu_option_type),                                \
 659   help_string,                                                                \
 660   line_number,                                                                \
 661   SUBMENU_OPTION                                                              \
 662 }                                                                             \
 663
 664 #define selection_option(passive_function, display_string, options,           \
 665  option_ptr, num_options, help_string, line_number, type)                     \
 666 {                                                                             \
 667   NULL,                                                                       \
 668   passive_function,                                                           \
 669   NULL,                                                                       \
 670   display_string,                                                             \
 671   options,                                                                    \
 672   option_ptr,                                                                 \
 673   num_options,                                                                \
 674   help_string,                                                                \
 675   line_number,                                                                \
 676   type                                                                        \
 677 }                                                                             \
 678
 679 #define action_selection_option(action_function, passive_function,            \
 680  display_string, options, option_ptr, num_options, help_string, line_number,  \
 681  type)                                                                        \
 682 {                                                                             \
 683   action_function,                                                            \
 684   passive_function,                                                           \
 685   NULL,                                                                       \
 686   display_string,                                                             \
 687   options,                                                                    \
 688   option_ptr,                                                                 \
 689   num_options,                                                                \
 690   help_string,                                                                \
 691   line_number,                                                                \
 692   type | ACTION_OPTION                                                        \
 693 }                                                                             \
 694
 695
 696 #define string_selection_option(passive_function, display_string, options,    \
 697  option_ptr, num_options, help_string, line_number)                           \
 698   selection_option(passive_function, display_string ": %s", options,          \
 699    option_ptr, num_options, help_string, line_number, STRING_SELECTION_OPTION)\
 700
 701 #define numeric_selection_option(passive_function, display_string,            \
 702  option_ptr, num_options, help_string, line_number)                           \
 703   selection_option(passive_function, display_string ": %d", NULL, option_ptr, \
 704    num_options, help_string, line_number, NUMBER_SELECTION_OPTION)            \
 705
 706 #define string_selection_action_option(action_function, passive_function,     \
 707  display_string, options, option_ptr, num_options, help_string, line_number)  \
 708   action_selection_option(action_function, passive_function,                  \
 709    display_string ": %s",  options, option_ptr, num_options, help_string,     \
 710    line_number, STRING_SELECTION_OPTION)                                      \
 711
 712 #define numeric_selection_action_option(action_function, passive_function,    \
 713  display_string, option_ptr, num_options, help_string, line_number)           \
 714   action_selection_option(action_function, passive_function,                  \
 715    display_string ": %d",  NULL, option_ptr, num_options, help_string,        \
 716    line_number, NUMBER_SELECTION_OPTION)                                      \
 717
 718 #define numeric_selection_action_hide_option(action_function,                 \
 719  passive_function, display_string, option_ptr, num_options, help_string,      \
 720  line_number)                                                                 \
 721   action_selection_option(action_function, passive_function,                  \
 722    display_string, NULL, option_ptr, num_options, help_string,                \
 723    line_number, NUMBER_SELECTION_OPTION)                                      \
 724
 725
 726 #define GAMEPAD_MENU_WIDTH 15
 727
 728 #ifdef PSP_BUILD
 729
 730 u32 gamepad_config_line_to_button[] =
 731  { 8, 6, 7, 9, 1, 2, 3, 0, 4, 5, 11, 10 };
 732
 733 #endif
 734
 735 #ifdef GP2X_BUILD
 736
 737 u32 gamepad_config_line_to_button[] =
 738  { 0, 2, 1, 3, 8, 9, 10, 11, 6, 7, 4, 5, 14 };
 739
 740 #endif
 741
 742 #ifdef PND_BUILD
 743
 744 u32 gamepad_config_line_to_button[] =
 745  { 0, 2, 1, 3, 8, 9, 10, 11, 6, 7, 4, 5, 12, 13, 14, 15 };
 746
 747 #endif
 748
 749 static const char *scale_options[] =
 750 {
 751 #ifdef PSP_BUILD
 752   "unscaled 3:2", "scaled 3:2", "fullscreen 16:9"
 753 #elif defined(WIZ_BUILD)
 754   "unscaled 3:2", "scaled 3:2 (slower)",
 755   "unscaled 3:2 (anti-tear)", "scaled 3:2 (anti-tear)"
 756 #elif defined(PND_BUILD)
 757   "unscaled", "2x", "3x", "fullscreen"
 758 #elif defined(GP2X_BUILD)
 759   "unscaled 3:2", "scaled 3:2", "fullscreen", "scaled 3:2 (software)"
 760 #else
 761   "unscaled 3:2"
 762 #endif
 763 };
 764
 765 const char *filter2_options[] =
 766 {
 767   "none", "scale2x", "scale3x", "eagle2x"
 768 };
 769
 770 #ifndef PSP_BUILD
 771 static const char *audio_buffer_options[] =
 772 {
 773   "16 bytes", "32 bytes", "64 bytes",
 774   "128 bytes", "256 bytes", "512 bytes", "1024 bytes", "2048 bytes",
 775   "4096 bytes", "8192 bytes", "16284 bytes"
 776 };
 777 #else
 778 const char *audio_buffer_options[] =
 779 {
 780   "3072 bytes", "4096 bytes", "5120 bytes", "6144 bytes", "7168 bytes",
 781   "8192 bytes", "9216 bytes", "10240 bytes", "11264 bytes", "12288 bytes"
 782 };
 783 #endif
 784
 785
 786 s32 load_game_config_file()
 787 {
 788   char game_config_filename[512];
 789   u32 file_loaded = 0;
 790   u32 i;
 791   make_rpath(game_config_filename, sizeof(game_config_filename), ".cfg");
 792
 793   file_open(game_config_file, game_config_filename, read);
 794
 795   if(file_check_valid(game_config_file))
 796   {
 797     u32 file_size = file_length(game_config_filename, game_config_file);
 798
 799     // Sanity check: File size must be the right size
 800     if(file_size == 56)
 801     {
 802       u32 file_options[file_size / 4];
 803
 804       file_read_array(game_config_file, file_options);
 805       current_frameskip_type = file_options[0] % 3;
 806       frameskip_value = file_options[1];
 807       random_skip = file_options[2] % 2;
 808       clock_speed = file_options[3];
 809
 810 #ifdef WIZ_BUILD
 811       if(clock_speed > 900)
 812         clock_speed = 533;
 813 #elif defined(GP2X_BUILD)
 814       if(clock_speed >= 300)
 815         clock_speed = 200;
 816 #else
 817       if(clock_speed > 333)
 818         clock_speed = 333;
 819 #endif
 820
 821       if(clock_speed < 33)
 822         clock_speed = 33;
 823
 824       if(frameskip_value < 0)
 825         frameskip_value = 0;
 826
 827       if(frameskip_value > 99)
 828         frameskip_value = 99;
 829
 830       for(i = 0; i < 10; i++)
 831       {
 832         cheats[i].cheat_active = file_options[4 + i] % 2;
 833         cheats[i].cheat_name[0] = 0;
 834       }
 835
 836       file_close(game_config_file);
 837       file_loaded = 1;
 838     }
 839   }
 840
 841   if(file_loaded)
 842     return 0;
 843
 844   current_frameskip_type = auto_frameskip;
 845   frameskip_value = 4;
 846 #ifdef WIZ_BUILD
 847   frameskip_value = 1;
 848 #endif
 849   random_skip = 0;
 850   clock_speed = default_clock_speed;
 851
 852   for(i = 0; i < 10; i++)
 853   {
 854     cheats[i].cheat_active = 0;
 855     cheats[i].cheat_name[0] = 0;
 856   }
 857
 858   return -1;
 859 }
 860
 861 enum file_options {
 862   fo_screen_scale = 0,
 863   fo_screen_filter,
 864   fo_global_enable_audio,
 865   fo_audio_buffer_size,
 866   fo_update_backup_flag,
 867   fo_global_enable_analog,
 868   fo_analog_sensitivity_level,
 869   fo_screen_filter2,
 870   fo_main_option_count,
 871 };
 872
 873 #ifdef PC_BUILD
 874 #define PLAT_BUTTON_COUNT 0
 875 #endif
 876 #define FILE_OPTION_COUNT (fo_main_option_count + PLAT_BUTTON_COUNT)
 877
 878 s32 load_config_file()
 879 {
 880   char config_path[512];
 881
 882   sprintf(config_path, "%s" PATH_SEPARATOR "%s", main_path, GPSP_CONFIG_FILENAME);
 883
 884   file_open(config_file, config_path, read);
 885
 886   if(file_check_valid(config_file))
 887   {
 888     u32 file_size = file_length(config_path, config_file);
 889
 890     // Sanity check: File size must be the right size
 891     if(file_size == FILE_OPTION_COUNT * 4)
 892     {
 893       u32 file_options[file_size / 4];
 894       file_read_array(config_file, file_options);
 895
 896       screen_scale = file_options[fo_screen_scale] %
 897         (sizeof(scale_options) / sizeof(scale_options[0]));
 898       screen_filter = file_options[fo_screen_filter] % 2;
 899       global_enable_audio = file_options[fo_global_enable_audio] % 2;
 900       screen_filter2 = file_options[fo_screen_filter2] %
 901         (sizeof(filter2_options) / sizeof(filter2_options[0]));
 902
 903       audio_buffer_size_number = file_options[fo_audio_buffer_size] %
 904         (sizeof(audio_buffer_options) / sizeof(audio_buffer_options[0]));
 905
 906       update_backup_flag = file_options[fo_update_backup_flag] % 2;
 907       global_enable_analog = file_options[fo_global_enable_analog] % 2;
 908       analog_sensitivity_level = file_options[fo_analog_sensitivity_level] % 8;
 909
 910 #ifdef PSP_BUILD
 911     scePowerSetClockFrequency(clock_speed, clock_speed, clock_speed / 2);
 912 #endif
 913
 914       // Sanity check: Make sure there's a MENU or FRAMESKIP
 915       // key, if not assign to triangle
 916
 917 #ifndef PC_BUILD
 918       u32 i;
 919       s32 menu_button = -1;
 920       for(i = 0; i < PLAT_BUTTON_COUNT; i++)
 921       {
 922         gamepad_config_map[i] = file_options[fo_main_option_count + i] %
 923          (BUTTON_ID_NONE + 1);
 924
 925         if(gamepad_config_map[i] == BUTTON_ID_MENU)
 926         {
 927           menu_button = i;
 928         }
 929       }
 930
 931       if(menu_button == -1 && PLAT_MENU_BUTTON >= 0)
 932       {
 933         gamepad_config_map[PLAT_MENU_BUTTON] = BUTTON_ID_MENU;
 934       }
 935 #endif
 936
 937       file_close(config_file);
 938     }
 939
 940     return 0;
 941   }
 942
 943   return -1;
 944 }
 945
 946 s32 save_game_config_file()
 947 {
 948   char game_config_filename[512];
 949   u32 i;
 950
 951   make_rpath(game_config_filename, sizeof(game_config_filename), ".cfg");
 952
 953   file_open(game_config_file, game_config_filename, write);
 954
 955   if(file_check_valid(game_config_file))
 956   {
 957     u32 file_options[14];
 958
 959     file_options[0] = current_frameskip_type;
 960     file_options[1] = frameskip_value;
 961     file_options[2] = random_skip;
 962     file_options[3] = clock_speed;
 963
 964     for(i = 0; i < 10; i++)
 965     {
 966       file_options[4 + i] = cheats[i].cheat_active;
 967     }
 968
 969     file_write_array(game_config_file, file_options);
 970
 971     file_close(game_config_file);
 972
 973     return 0;
 974   }
 975
 976   return -1;
 977 }
 978
 979 s32 save_config_file()
 980 {
 981   char config_path[512];
 982
 983   sprintf(config_path, "%s" PATH_SEPARATOR "%s", main_path, GPSP_CONFIG_FILENAME);
 984
 985   file_open(config_file, config_path, write);
 986
 987   save_game_config_file();
 988
 989   if(file_check_valid(config_file))
 990   {
 991     u32 file_options[FILE_OPTION_COUNT];
 992
 993     file_options[fo_screen_scale] = screen_scale;
 994     file_options[fo_screen_filter] = screen_filter;
 995     file_options[fo_global_enable_audio] = global_enable_audio;
 996     file_options[fo_audio_buffer_size] = audio_buffer_size_number;
 997     file_options[fo_update_backup_flag] = update_backup_flag;
 998     file_options[fo_global_enable_analog] = global_enable_analog;
 999     file_options[fo_analog_sensitivity_level] = analog_sensitivity_level;
1000     file_options[fo_screen_filter2] = screen_filter2;
1001
1002 #ifndef PC_BUILD
1003     u32 i;
1004     for(i = 0; i < PLAT_BUTTON_COUNT; i++)
1005     {
1006       file_options[fo_main_option_count + i] = gamepad_config_map[i];
1007     }
1008 #endif
1009
1010     file_write_array(config_file, file_options);
1011
1012     file_close(config_file);
1013
1014     return 0;
1015   }
1016
1017   return -1;
1018 }
1019
1020 typedef enum
1021 {
1022   MAIN_MENU,
1023   GAMEPAD_MENU,
1024   SAVESTATE_MENU,
1025   FRAMESKIP_MENU,
1026   CHEAT_MENU
1027 } menu_enum;
1028
1029 u32 savestate_slot = 0;
1030
1031 void get_savestate_snapshot(char *savestate_filename)
1032 {
1033   u16 snapshot_buffer[240 * 160];
1034   char savestate_timestamp_string[80];
1035
1036   file_open(savestate_file, savestate_filename, read);
1037
1038   if(file_check_valid(savestate_file))
1039   {
1040     const char weekday_strings[7][11] =
1041     {
1042       "Sunday", "Monday", "Tuesday", "Wednesday",
1043       "Thursday", "Friday", "Saturday"
1044     };
1045     time_t savestate_time_flat;
1046     struct tm *current_time;
1047     file_read_array(savestate_file, snapshot_buffer);
1048     file_read_variable(savestate_file, savestate_time_flat);
1049
1050     file_close(savestate_file);
1051
1052     current_time = localtime(&savestate_time_flat);
1053     sprintf(savestate_timestamp_string,
1054      "%s  %02d/%02d/%04d  %02d:%02d:%02d                ",
1055      weekday_strings[current_time->tm_wday], current_time->tm_mon + 1,
1056      current_time->tm_mday, current_time->tm_year + 1900,
1057      current_time->tm_hour, current_time->tm_min, current_time->tm_sec);
1058
1059     savestate_timestamp_string[40] = 0;
1060     print_string(savestate_timestamp_string, COLOR_HELP_TEXT, COLOR_BG,
1061      10, 40);
1062   }
1063   else
1064   {
1065     memset(snapshot_buffer, 0, 240 * 160 * 2);
1066     print_string_ext("No savestate in this slot.",
1067      0xFFFF, 0x0000, 15, 75, snapshot_buffer, 240, 0, 0, FONT_HEIGHT);
1068     print_string("---------- --/--/---- --:--:--          ", COLOR_HELP_TEXT,
1069      COLOR_BG, 10, 40);
1070   }
1071
1072 #ifndef GP2X_BUILD
1073   blit_to_screen(snapshot_buffer, 240, 160, 230, 40);
1074 #endif
1075 }
1076
1077 void get_savestate_filename_noshot(u32 slot, char *name_buffer)
1078 {
1079   char savestate_ext[16];
1080
1081   sprintf(savestate_ext, "%d.svs", slot);
1082   make_rpath(name_buffer, 512, savestate_ext);
1083 }
1084
1085 void get_savestate_filename(u32 slot, char *name_buffer)
1086 {
1087   get_savestate_filename_noshot(slot, name_buffer);
1088   get_savestate_snapshot(name_buffer);
1089 }
1090
1091 #ifdef PSP_BUILD
1092   void _flush_cache()
1093   {
1094     invalidate_all_cache();
1095   }
1096 #endif
1097
1098 u32 menu(u16 *original_screen)
1099 {
1100   char print_buffer[81];
1101   u32 clock_speed_number;
1102   gui_action_type gui_action;
1103   u32 i;
1104   u32 repeat = 1;
1105   u32 return_value = 0;
1106   u32 first_load = 0;
1107   char current_savestate_filename[512];
1108   char line_buffer[80];
1109   char cheat_format_str[10][41];
1110
1111   menu_type *current_menu;
1112   menu_option_type *current_option;
1113   menu_option_type *display_option;
1114   u32 current_option_num;
1115
1116   auto void choose_menu();
1117   auto void clear_help();
1118
1119 #ifndef PC_BUILD
1120   static const char * const gamepad_help[] =
1121   {
1122     "Up button on GBA d-pad.",
1123     "Down button on GBA d-pad.",
1124     "Left button on GBA d-pad.",
1125     "Right button on GBA d-pad.",
1126     "A button on GBA.",
1127     "B button on GBA.",
1128     "Left shoulder button on GBA.",
1129     "Right shoulder button on GBA.",
1130     "Start button on GBA.",
1131     "Select button on GBA.",
1132     "Brings up the options menu.",
1133     "Toggles fastforward on/off.",
1134     "Loads the game state from the current slot.",
1135     "Saves the game state to the current slot.",
1136     "Rapidly press/release the A button on GBA.",
1137     "Rapidly press/release the B button on GBA.",
1138     "Rapidly press/release the L shoulder on GBA.",
1139     "Rapidly press/release the R shoulder on GBA.",
1140     "Increases the volume.",
1141     "Decreases the volume.",
1142     "Displays virtual/drawn frames per second.",
1143     "Does nothing."
1144   };
1145
1146   static const char *gamepad_config_buttons[] =
1147   {
1148     "UP",
1149     "DOWN",
1150     "LEFT",
1151     "RIGHT",
1152     "A",
1153     "B",
1154     "L",
1155     "R",
1156     "START",
1157     "SELECT",
1158     "MENU",
1159     "FASTFORWARD",
1160     "LOAD STATE",
1161     "SAVE STATE",
1162     "RAPIDFIRE A",
1163     "RAPIDFIRE B",
1164     "RAPIDFIRE L",
1165     "RAPIDFIRE R",
1166     "VOLUME UP",
1167     "VOLUME DOWN",
1168     "DISPLAY FPS",
1169     "NOTHING"
1170   };
1171 #endif
1172
1173   void menu_update_clock()
1174   {
1175     get_clock_speed_number();
1176     if (clock_speed_number < 0 || clock_speed_number >=
1177      sizeof(clock_speed_options) / sizeof(clock_speed_options[0]))
1178     {
1179       clock_speed = default_clock_speed;
1180       get_clock_speed_number();
1181     }
1182   }
1183
1184   void menu_exit()
1185   {
1186     if(!first_load)
1187      repeat = 0;
1188   }
1189
1190   void menu_quit()
1191   {
1192     menu_get_clock_speed();
1193     save_config_file();
1194     quit();
1195   }
1196
1197   void menu_load()
1198   {
1199     const char *file_ext[] = { ".gba", ".bin", ".zip", NULL };
1200     char load_filename[512];
1201     save_game_config_file();
1202     if(load_file(file_ext, load_filename) != -1)
1203     {
1204        if(load_gamepak(load_filename) == -1)
1205        {
1206          quit();
1207        }
1208        reset_gba();
1209        return_value = 1;
1210        repeat = 0;
1211        reg[CHANGED_PC_STATUS] = 1;
1212        menu_update_clock();
1213     }
1214     else
1215     {
1216       choose_menu(current_menu);
1217     }
1218   }
1219
1220   void menu_restart()
1221   {
1222     if(!first_load)
1223     {
1224       reset_gba();
1225       reg[CHANGED_PC_STATUS] = 1;
1226       return_value = 1;
1227       repeat = 0;
1228     }
1229   }
1230
1231   void menu_change_state()
1232   {
1233     get_savestate_filename(savestate_slot, current_savestate_filename);
1234   }
1235
1236   void menu_save_state()
1237   {
1238     if(!first_load)
1239     {
1240       get_savestate_filename_noshot(savestate_slot,
1241        current_savestate_filename);
1242       save_state(current_savestate_filename, original_screen);
1243     }
1244     menu_change_state();
1245   }
1246
1247   void menu_load_state()
1248   {
1249     if(!first_load)
1250     {
1251       load_state(current_savestate_filename);
1252       return_value = 1;
1253       repeat = 0;
1254     }
1255   }
1256
1257   void menu_load_state_file()
1258   {
1259     const char *file_ext[] = { ".svs", NULL };
1260     char load_filename[512];
1261     if(load_file(file_ext, load_filename) != -1)
1262     {
1263       load_state(load_filename);
1264       return_value = 1;
1265       repeat = 0;
1266     }
1267     else
1268     {
1269       choose_menu(current_menu);
1270     }
1271   }
1272
1273   void menu_fix_gamepad_help()
1274   {
1275 #ifndef PC_BUILD
1276     clear_help();
1277     current_option->help_string =
1278      gamepad_help[gamepad_config_map[
1279      gamepad_config_line_to_button[current_option_num]]];
1280 #endif
1281   }
1282
1283   void submenu_graphics_sound()
1284   {
1285
1286   }
1287
1288   void submenu_cheats_misc()
1289   {
1290
1291   }
1292
1293   void submenu_gamepad()
1294   {
1295
1296   }
1297
1298   void submenu_analog()
1299   {
1300
1301   }
1302
1303   void submenu_savestate()
1304   {
1305     print_string("Savestate options:", COLOR_ACTIVE_ITEM, COLOR_BG, 10, 70);
1306     menu_change_state();
1307   }
1308
1309   void submenu_main()
1310   {
1311     strncpy(print_buffer, gamepak_filename, 80);
1312     print_string(print_buffer, COLOR_ROM_INFO, COLOR_BG, 10, 10);
1313     sprintf(print_buffer, "%s  %s  %s", gamepak_title,
1314      gamepak_code, gamepak_maker);
1315     print_string(print_buffer, COLOR_ROM_INFO, COLOR_BG, 10, 20);
1316
1317     get_savestate_filename_noshot(savestate_slot,
1318      current_savestate_filename);
1319   }
1320
1321   const char *yes_no_options[] = { "no", "yes" };
1322   const char *enable_disable_options[] = { "disabled", "enabled" };
1323
1324   const char *frameskip_options[] = { "automatic", "manual", "off" };
1325   const char *frameskip_variation_options[] = { "uniform", "random" };
1326
1327   static const char *update_backup_options[] = { "Exit only", "Automatic" };
1328
1329   // Marker for help information, don't go past this mark (except \n)------*
1330   menu_option_type graphics_sound_options[] =
1331   {
1332     string_selection_option(NULL, "Display scaling", scale_options,
1333      (u32 *)(&screen_scale),
1334      sizeof(scale_options) / sizeof(scale_options[0]),
1335 #ifndef GP2X_BUILD
1336      "Determines how the GBA screen is resized in relation to the\n"
1337      "entire screen."
1338 #ifdef PSP_BUILD
1339      " Select unscaled 3:2 for GBA resolution, scaled 3:2 for GBA\n"
1340      "aspect ratio scaled to fill the height of the PSP screen, and\n"
1341      "fullscreen to fill the entire PSP screen."
1342 #endif
1343 #endif
1344      "", 2),
1345 #ifndef GP2X_BUILD
1346     string_selection_option(NULL, "Screen filtering", yes_no_options,
1347      (u32 *)(&screen_filter), 2,
1348      "Determines whether or not filtering should be used when\n"
1349      "scaling the screen. Selecting this will produce a more even and\n"
1350      "smooth image, at the cost of being blurry and having less vibrant\n"
1351      "colors.", 3),
1352 #endif
1353 #ifdef PND_BUILD
1354     string_selection_option(NULL, "Scaling filter", filter2_options,
1355      (u32 *)(&screen_filter2),
1356      sizeof(filter2_options) / sizeof(filter2_options[0]),
1357      "Optional pixel art scaling filter", 4),
1358 #endif
1359     string_selection_option(NULL, "Frameskip type", frameskip_options,
1360      (u32 *)(&current_frameskip_type), 3,
1361 #ifndef GP2X_BUILD
1362      "Determines what kind of frameskipping to use.\n"
1363      "Frameskipping may improve emulation speed of many games.\n"
1364 #endif
1365      "Off: Do not skip any frames.\n"
1366      "Auto: Skip up to N frames (see next opt) as needed.\n"
1367      "Manual: Always render only 1 out of N + 1 frames."
1368      , 5),
1369     numeric_selection_option(NULL, "Frameskip value", &frameskip_value, 100,
1370 #ifndef GP2X_BUILD
1371      "For auto frameskip, determines the maximum number of frames that\n"
1372      "are allowed to be skipped consecutively.\n"
1373      "For manual frameskip, determines the number of frames that will\n"
1374      "always be skipped."
1375 #endif
1376      "", 6),
1377     string_selection_option(NULL, "Framskip variation",
1378      frameskip_variation_options, &random_skip, 2,
1379 #ifndef GP2X_BUILD
1380      "If objects in the game flicker at a regular rate certain manual\n"
1381      "frameskip values may cause them to normally disappear. Change this\n"
1382      "value to 'random' to avoid this. Do not use otherwise, as it tends\n"
1383      "to make the image quality worse, especially in high motion games."
1384 #endif
1385      "", 7),
1386     string_selection_option(NULL, "Audio output", yes_no_options,
1387      &global_enable_audio, 2,
1388      "Select 'no' to turn off all audio output. This will\n"
1389      "not result in a significant change in performance.", 9),
1390 #ifndef PSP_BUILD
1391     string_selection_option(NULL, "Audio buffer", audio_buffer_options,
1392              &audio_buffer_size_number, 11,
1393 #else
1394     string_selection_option(NULL, "Audio buffer", audio_buffer_options,
1395              &audio_buffer_size_number, 10,
1396 #endif
1397
1398 #ifdef PSP_BUILD
1399      "Set the size (in bytes) of the audio buffer. Larger values may result\n"
1400      "in slightly better performance at the cost of latency; the lowest\n"
1401      "value will give the most responsive audio.\n"
1402      "This option requires gpSP to be restarted before it will take effect.",
1403 #else
1404      "Set the size (in bytes) of the audio buffer.\n"
1405      "This option requires gpSP restart to take effect.\n"
1406      "Settable values may be limited by SDL implementation.",
1407 #endif
1408      10),
1409     submenu_option(NULL, "Back", "Return to the main menu.", 12)
1410   };
1411
1412   make_menu(graphics_sound, submenu_graphics_sound, NULL);
1413
1414   menu_option_type cheats_misc_options[] =
1415   {
1416     cheat_option(0),
1417     cheat_option(1),
1418     cheat_option(2),
1419     cheat_option(3),
1420     cheat_option(4),
1421     cheat_option(5),
1422     cheat_option(6),
1423     cheat_option(7),
1424     cheat_option(8),
1425     cheat_option(9),
1426 #if defined(PSP_BUILD) || defined(GP2X_BUILD)
1427     string_selection_option(NULL, "Clock speed",
1428      clock_speed_options, &clock_speed_number,
1429      sizeof(clock_speed_options) / sizeof(clock_speed_options[0]),
1430      "Change the clock speed of the device. Higher clock\n"
1431      "speed will yield better performance, but will drain\n"
1432      "battery life further.", 11),
1433 #endif
1434     string_selection_option(NULL, "Update backup",
1435      update_backup_options, &update_backup_flag, 2,
1436 #ifdef GP2X_BUILD
1437      "Determines when in-game save files should be\n"
1438      "written back to SD card."
1439 #else
1440      "Determines when in-game save files should be written back to\n"
1441      "card. If set to 'automatic' writebacks will occur shortly after\n"
1442      "the game's backup is altered. On 'exit only' it will only be\n"
1443      "written back when you exit from this menu.\n"
1444 #ifdef PSP
1445      "(NOT from using the home button), use the latter with extreme care."
1446 #endif
1447 #endif
1448      "", 12),
1449     submenu_option(NULL, "Back", "Return to the main menu.", 14)
1450   };
1451
1452   make_menu(cheats_misc, submenu_cheats_misc, NULL);
1453
1454   menu_option_type savestate_options[] =
1455   {
1456     numeric_selection_action_hide_option(menu_load_state, menu_change_state,
1457      "Load savestate from current slot", &savestate_slot, 10,
1458      "Select to load the game state from the current slot\n"
1459      "for this game.\n"
1460      "Press left + right to change the current slot.", 6),
1461     numeric_selection_action_hide_option(menu_save_state, menu_change_state,
1462      "Save savestate to current slot", &savestate_slot, 10,
1463      "Select to save the game state to the current slot\n"
1464      "for this game.\n"
1465      "Press left + right to change the current slot.", 7),
1466     numeric_selection_action_hide_option(menu_load_state_file,
1467       menu_change_state,
1468      "Load savestate from file", &savestate_slot, 10,
1469      "Restore gameplay from a savestate file.\n"
1470      "Note: The same file used to save the state must be\n"
1471      "present.\n", 9),
1472     numeric_selection_option(menu_change_state,
1473      "Current savestate slot", &savestate_slot, 10,
1474      "Change the current savestate slot.\n", 11),
1475     submenu_option(NULL, "Back", "Return to the main menu.", 13)
1476   };
1477
1478   make_menu(savestate, submenu_savestate, NULL);
1479
1480 #ifdef PSP_BUILD
1481
1482   menu_option_type gamepad_config_options[] =
1483   {
1484     gamepad_config_option("D-pad up     ", 0),
1485     gamepad_config_option("D-pad down   ", 1),
1486     gamepad_config_option("D-pad left   ", 2),
1487     gamepad_config_option("D-pad right  ", 3),
1488     gamepad_config_option("Circle       ", 4),
1489     gamepad_config_option("Cross        ", 5),
1490     gamepad_config_option("Square       ", 6),
1491     gamepad_config_option("Triangle     ", 7),
1492     gamepad_config_option("Left Trigger ", 8),
1493     gamepad_config_option("Right Trigger", 9),
1494     gamepad_config_option("Start        ", 10),
1495     gamepad_config_option("Select       ", 11),
1496     submenu_option(NULL, "Back", "Return to the main menu.", 13)
1497   };
1498
1499
1500   menu_option_type analog_config_options[] =
1501   {
1502     analog_config_option("Analog up   ", 0),
1503     analog_config_option("Analog down ", 1),
1504     analog_config_option("Analog left ", 2),
1505     analog_config_option("Analog right", 3),
1506     string_selection_option(NULL, "Enable analog", yes_no_options,
1507      &global_enable_analog, 2,
1508      "Select 'no' to block analog input entirely.", 7),
1509     numeric_selection_option(NULL, "Analog sensitivity",
1510      &analog_sensitivity_level, 10,
1511      "Determine sensitivity/responsiveness of the analog input.\n"
1512      "Lower numbers are less sensitive.", 8),
1513     submenu_option(NULL, "Back", "Return to the main menu.", 11)
1514   };
1515
1516 #endif
1517
1518 #if defined(GP2X_BUILD) || defined(PND_BUILD)
1519
1520   menu_option_type gamepad_config_options[] =
1521   {
1522     gamepad_config_option("D-pad up     ", 0),
1523     gamepad_config_option("D-pad down   ", 1),
1524     gamepad_config_option("D-pad left   ", 2),
1525     gamepad_config_option("D-pad right  ", 3),
1526     gamepad_config_option("A            ", 4),
1527     gamepad_config_option("B            ", 5),
1528     gamepad_config_option("X            ", 6),
1529     gamepad_config_option("Y            ", 7),
1530     gamepad_config_option("Left Trigger ", 8),
1531     gamepad_config_option("Right Trigger", 9),
1532 #ifdef WIZ_BUILD
1533     gamepad_config_option("Menu         ", 10),
1534 #else
1535     gamepad_config_option("Start        ", 10),
1536 #endif
1537     gamepad_config_option("Select       ", 11),
1538 #if !defined(WIZ_BUILD) && !defined(PND_BUILD)
1539     gamepad_config_option("Stick Push   ", 12),
1540 #endif
1541 #ifdef PND_BUILD
1542     gamepad_config_option("1            ", 12),
1543     gamepad_config_option("2            ", 13),
1544     gamepad_config_option("3            ", 14),
1545     gamepad_config_option("4            ", 15),
1546     submenu_option(NULL, "Back", "Return to the main menu.", 16)
1547 #else
1548     submenu_option(NULL, "Back", "Return to the main menu.", 14)
1549 #endif
1550   };
1551
1552
1553   menu_option_type analog_config_options[] =
1554   {
1555     submenu_option(NULL, "Back", "Return to the main menu.", 11)
1556   };
1557
1558 #endif
1559
1560 #ifdef PC_BUILD
1561
1562   menu_option_type gamepad_config_options[] =
1563   {
1564     submenu_option(NULL, "Back", "Return to the main menu.", 13)
1565   };
1566
1567   menu_option_type analog_config_options[] =
1568   {
1569     submenu_option(NULL, "Back", "Return to the main menu.", 11)
1570   };
1571
1572 #endif
1573
1574   make_menu(gamepad_config, submenu_gamepad, NULL);
1575   make_menu(analog_config, submenu_analog, NULL);
1576
1577   menu_option_type main_options[] =
1578   {
1579     submenu_option(&graphics_sound_menu, "Graphics and Sound options",
1580      "Select to set display parameters and frameskip\n"
1581      "behavior, audio on/off, buffer size, and filtering.", 0),
1582     numeric_selection_action_option(menu_load_state, NULL,
1583      "Load state from slot", &savestate_slot, 10,
1584      "Select to load the game state from the current slot\n"
1585      "for this game, if it exists.\n"
1586      "Press left + right to change the current slot.", 2),
1587     numeric_selection_action_option(menu_save_state, NULL,
1588      "Save state to slot", &savestate_slot, 10,
1589      "Select to save the game state to the current slot\n"
1590      "for this game. See the extended menu for more info.\n"
1591      "Press left + right to change the current slot.", 3),
1592     submenu_option(&savestate_menu, "Savestate options",
1593      "Select to enter a menu for loading, saving, and\n"
1594      "viewing the currently active savestate for this game\n"
1595      "(or to load a savestate file from another game)", 4),
1596     submenu_option(&gamepad_config_menu, "Configure gamepad input",
1597      "Select to change the in-game behavior of buttons\n"
1598      "and d-pad.", 6),
1599 #ifndef GP2X_BUILD
1600     submenu_option(&analog_config_menu, "Configure analog input",
1601      "Select to change the in-game behavior of the PSP analog nub.", 7),
1602 #endif
1603     submenu_option(&cheats_misc_menu, "Cheats and Miscellaneous options",
1604      "Select to manage cheats, set backup behavior,\n"
1605      "and set device clock speed.", 9),
1606     action_option(menu_load, NULL, "Load new game",
1607      "Select to load a new game\n"
1608      "(will exit a game if currently playing).", 11),
1609     action_option(menu_restart, NULL, "Restart game",
1610      "Select to reset the GBA with the current game\n"
1611      "loaded.", 12),
1612     action_option(menu_exit, NULL, "Return to game",
1613      "Select to exit this menu and resume gameplay.", 13),
1614     action_option(menu_quit, NULL, "Exit gpSP",
1615      "Select to exit gpSP and return to the menu.", 15)
1616   };
1617
1618   make_menu(main, submenu_main, NULL);
1619
1620   void choose_menu(menu_type *new_menu)
1621   {
1622     if(new_menu == NULL)
1623       new_menu = &main_menu;
1624
1625     clear_screen(COLOR_BG);
1626
1627 #ifndef GP2X_BUILD
1628     blit_to_screen(original_screen, 240, 160, 230, 40);
1629 #endif
1630
1631     current_menu = new_menu;
1632     current_option = new_menu->options;
1633     current_option_num = 0;
1634     if(current_menu->init_function)
1635      current_menu->init_function();
1636   }
1637
1638   void clear_help()
1639   {
1640     for(i = 0; i < 6; i++)
1641     {
1642       print_string_pad(" ", COLOR_BG, COLOR_BG, 8, 210 + (i * 10), 70);
1643     }
1644   }
1645
1646   menu_update_clock();
1647   video_resolution_large();
1648
1649 #ifndef GP2X_BUILD
1650   SDL_LockMutex(sound_mutex);
1651 #endif
1652   SDL_PauseAudio(1);
1653
1654 #ifndef GP2X_BUILD
1655   SDL_UnlockMutex(sound_mutex);
1656 #endif
1657
1658   if(gamepak_filename[0] == 0)
1659   {
1660     first_load = 1;
1661     memset(original_screen, 0x00, 240 * 160 * 2);
1662     print_string_ext("No game loaded yet.", 0xFFFF, 0x0000,
1663      60, 75,original_screen, 240, 0, 0, FONT_HEIGHT);
1664   }
1665
1666   choose_menu(&main_menu);
1667
1668   for(i = 0; i < 10; i++)
1669   {
1670     if(i >= num_cheats)
1671     {
1672       sprintf(cheat_format_str[i], "cheat %d (none loaded)", i);
1673     }
1674     else
1675     {
1676       sprintf(cheat_format_str[i], "cheat %d (%s): %%s", i,
1677        cheats[i].cheat_name);
1678     }
1679   }
1680
1681   current_menu->init_function();
1682
1683   while(repeat)
1684   {
1685     display_option = current_menu->options;
1686
1687     for(i = 0; i < current_menu->num_options; i++, display_option++)
1688     {
1689       if(display_option->option_type & NUMBER_SELECTION_OPTION)
1690       {
1691         sprintf(line_buffer, display_option->display_string,
1692          *(display_option->current_option));
1693       }
1694       else
1695
1696       if(display_option->option_type & STRING_SELECTION_OPTION)
1697       {
1698         sprintf(line_buffer, display_option->display_string,
1699          ((u32 *)display_option->options)[*(display_option->current_option)]);
1700       }
1701       else
1702       {
1703         strcpy(line_buffer, display_option->display_string);
1704       }
1705
1706       if(display_option == current_option)
1707       {
1708         print_string_pad(line_buffer, COLOR_ACTIVE_ITEM, COLOR_BG, 6,
1709          (display_option->line_number * 10) + 40, 36);
1710       }
1711       else
1712       {
1713         print_string_pad(line_buffer, COLOR_INACTIVE_ITEM, COLOR_BG, 6,
1714          (display_option->line_number * 10) + 40, 36);
1715       }
1716     }
1717
1718     print_string(current_option->help_string, COLOR_HELP_TEXT,
1719      COLOR_BG, 8, 210);
1720
1721     flip_screen();
1722
1723     gui_action = get_gui_input();
1724
1725     switch(gui_action)
1726     {
1727       case CURSOR_DOWN:
1728         current_option_num = (current_option_num + 1) %
1729           current_menu->num_options;
1730
1731         current_option = current_menu->options + current_option_num;
1732         clear_help();
1733         break;
1734
1735       case CURSOR_UP:
1736         if(current_option_num)
1737           current_option_num--;
1738         else
1739           current_option_num = current_menu->num_options - 1;
1740
1741         current_option = current_menu->options + current_option_num;
1742         clear_help();
1743         break;
1744
1745       case CURSOR_RIGHT:
1746         if(current_option->option_type & (NUMBER_SELECTION_OPTION |
1747          STRING_SELECTION_OPTION))
1748         {
1749           *(current_option->current_option) =
1750            (*current_option->current_option + 1) %
1751            current_option->num_options;
1752
1753           if(current_option->passive_function)
1754             current_option->passive_function();
1755         }
1756         break;
1757
1758       case CURSOR_LEFT:
1759         if(current_option->option_type & (NUMBER_SELECTION_OPTION |
1760          STRING_SELECTION_OPTION))
1761         {
1762           u32 current_option_val = *(current_option->current_option);
1763
1764           if(current_option_val)
1765             current_option_val--;
1766           else
1767             current_option_val = current_option->num_options - 1;
1768
1769           *(current_option->current_option) = current_option_val;
1770
1771           if(current_option->passive_function)
1772             current_option->passive_function();
1773         }
1774         break;
1775
1776       case CURSOR_EXIT:
1777         if(current_menu == &main_menu)
1778           menu_exit();
1779
1780         choose_menu(&main_menu);
1781         break;
1782
1783       case CURSOR_SELECT:
1784         if(current_option->option_type & ACTION_OPTION)
1785           current_option->action_function();
1786
1787         if(current_option->option_type & SUBMENU_OPTION)
1788           choose_menu(current_option->sub_menu);
1789         break;
1790
1791       default:
1792         break;
1793     }
1794   }
1795
1796   set_gba_resolution(screen_scale);
1797   video_resolution_small();
1798   menu_get_clock_speed();
1799   set_clock_speed();
1800
1801   SDL_PauseAudio(0);
1802   num_skipped_frames = 100;
1803
1804   return return_value;
1805 }