forked from len0rd/rockbox
pacbox - a Pacman arcade machine emulator. Currently working for all colour targets and the iriver H1x0. Requires the Pacman arcade machine ROMs in /.rockbox/pacman/
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9001 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman
parent
1246668a78
commit
a814584c87
13 changed files with 11079 additions and 1 deletions
534
apps/plugins/pacbox/pacbox.c
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534
apps/plugins/pacbox/pacbox.c
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Pacbox - a Pacman Emulator for Rockbox
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*
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* Based on PIE - Pacman Instructional Emulator
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*
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* Copyright (c) 1997-2003,2004 Alessandro Scotti
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* http://www.ascotti.org/
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "plugin.h"
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#include "arcade.h"
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PLUGIN_HEADER
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#ifdef USE_IRAM
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extern char iramcopy[];
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extern char iramstart[];
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extern char iramend[];
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extern char iedata[];
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extern char iend[];
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#endif
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/* How many video frames (out of a possible 60) we display each second */
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#define FPS 20
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#if CONFIG_KEYPAD == IPOD_4G_PAD
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#define PACMAN_UP BUTTON_RIGHT
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#define PACMAN_DOWN BUTTON_LEFT
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#define PACMAN_LEFT BUTTON_MENU
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#define PACMAN_RIGHT BUTTON_PLAY
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#define PACMAN_1UP BUTTON_SELECT
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#define PACMAN_COIN BUTTON_SELECT
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#elif CONFIG_KEYPAD == IRIVER_H100_PAD || CONFIG_KEYPAD == IRIVER_H300_PAD
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#define PACMAN_UP BUTTON_RIGHT
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#define PACMAN_DOWN BUTTON_LEFT
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#define PACMAN_LEFT BUTTON_UP
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#define PACMAN_RIGHT BUTTON_DOWN
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#define PACMAN_1UP BUTTON_SELECT
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#define PACMAN_2UP BUTTON_ON
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#define PACMAN_COIN BUTTON_REC
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#define PACMAN_MENU BUTTON_MODE
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#elif CONFIG_KEYPAD == GIGABEAT_PAD
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#define PACMAN_UP BUTTON_UP
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#define PACMAN_DOWN BUTTON_DOWN
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#define PACMAN_LEFT BUTTON_LEFT
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#define PACMAN_RIGHT BUTTON_RIGHT
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#define PACMAN_1UP BUTTON_SELECT
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#define PACMAN_2UP BUTTON_POWER
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#define PACMAN_COIN BUTTON_A
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#define PACMAN_MENU BUTTON_MENU
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#elif CONFIG_KEYPAD == IAUDIO_X5_PAD
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#define PACMAN_UP BUTTON_RIGHT
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#define PACMAN_DOWN BUTTON_LEFT
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#define PACMAN_LEFT BUTTON_UP
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#define PACMAN_RIGHT BUTTON_DOWN
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#define PACMAN_1UP BUTTON_SELECT
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#define PACMAN_2UP BUTTON_POWER
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#define PACMAN_COIN BUTTON_REC
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#define PACMAN_MENU BUTTON_PLAY
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#endif
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#if (LCD_HEIGHT >= 288)
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#define XOFS ((LCD_WIDTH-224)/2)
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#define YOFS ((LCD_HEIGHT-288)/2)
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#elif (LCD_WIDTH >= 288)
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#define XOFS ((LCD_WIDTH-288)/2)
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#define YOFS ((LCD_HEIGHT-224)/2)
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#elif (LCD_WIDTH >= 220)
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#define XOFS ((LCD_WIDTH-(288*3/4))/2)
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#define YOFS ((LCD_HEIGHT-(224*3/4))/2)
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#elif (LCD_WIDTH >= 144)
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#define XOFS ((LCD_WIDTH-288/2)/2)
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#define YOFS ((LCD_HEIGHT-224/2)/2)
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#endif
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struct plugin_api* rb;
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unsigned framesPerSecond = VideoFrequency;
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unsigned long frame_counter = 0;
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struct pacman_settings {
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int difficulty;
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int numlives;
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int bonus;
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int ghostnames;
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int showfps;
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};
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struct pacman_settings settings;
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bool loadFile( const char * name, unsigned char * buf, int len )
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{
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char filename[MAX_PATH];
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rb->snprintf(filename,sizeof(filename),"/.rockbox/pacman/%s",name);
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int fd = rb->open( filename, O_RDONLY);
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if( fd < 0 ) {
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return false;
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}
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int n = rb->read( fd, buf, len);
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rb->close( fd );
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if( n != len ) {
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return false;
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}
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return true;
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}
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bool loadROMS( void )
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{
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bool romsLoaded = false;
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romsLoaded = loadFile( "pacman.6e", ram_, 0x1000) &&
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loadFile( "pacman.6f", ram_+0x1000, 0x1000) &&
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loadFile( "pacman.6h", ram_+0x2000, 0x1000) &&
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loadFile( "pacman.6j", ram_+0x3000, 0x1000) &&
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loadFile( "pacman.5e", charset_rom_, 0x1000) &&
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loadFile( "pacman.5f", spriteset_rom_, 0x1000);
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if( romsLoaded ) {
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decodeROMs();
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reset_PacmanMachine();
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}
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return romsLoaded;
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}
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/* A buffer to render Pacman's 244x288 screen into */
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unsigned char background[ScreenWidth*ScreenHeight] __attribute__ ((aligned (4)));
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unsigned char video_buffer[ScreenWidth*ScreenHeight] __attribute__ ((aligned (4)));
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long start_time;
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long sleep_counter = 0;
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long video_frames = 0;
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int dipDifficulty[] = { DipDifficulty_Normal, DipDifficulty_Hard };
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int dipLives[] = { DipLives_1, DipLives_2, DipLives_3, DipLives_5 };
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int dipBonus[] = { DipBonus_10000, DipBonus_15000, DipBonus_20000, DipBonus_None };
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int dipGhostNames[] = { DipGhostNames_Normal, DipGhostNames_Alternate };
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int settings_to_dip(struct pacman_settings settings)
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{
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return ( DipPlay_OneCoinOneGame |
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DipCabinet_Upright |
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DipMode_Play |
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DipRackAdvance_Off |
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dipDifficulty[settings.difficulty] |
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dipLives[settings.numlives] |
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dipBonus[settings.bonus] |
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dipGhostNames[settings.ghostnames]
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);
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}
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int pacbox_menu_cb(int key, int m)
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{
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(void)m;
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switch(key)
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{
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#ifdef MENU_ENTER2
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case MENU_ENTER2:
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#endif
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case MENU_ENTER:
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key = BUTTON_NONE; /* eat the downpress, next menu reacts on release */
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break;
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#ifdef MENU_ENTER2
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case MENU_ENTER2 | BUTTON_REL:
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#endif
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case MENU_ENTER | BUTTON_REL:
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key = MENU_ENTER; /* fake downpress, next menu doesn't like release */
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break;
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}
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return key;
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}
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bool pacbox_menu(void)
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{
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int m;
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int result;
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int menu_quit=0;
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int new_setting;
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bool need_restart = false;
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static const struct opt_items noyes[2] = {
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{ "No", NULL },
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{ "Yes", NULL },
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};
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static const struct opt_items difficulty_options[2] = {
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{ "Normal", NULL },
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{ "Harder", NULL },
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};
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static const struct opt_items numlives_options[4] = {
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{ "1", NULL },
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{ "2", NULL },
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{ "3", NULL },
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{ "5", NULL },
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};
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static const struct opt_items bonus_options[4] = {
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{ "10000 points", NULL },
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{ "15000 points", NULL },
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{ "20000 points", NULL },
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{ "No bonus", NULL },
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};
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static const struct opt_items ghostname_options[2] = {
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{ "Normal", NULL },
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{ "Alternate", NULL },
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};
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static const struct menu_item items[] = {
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{ "Difficulty", NULL },
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{ "Pacmen Per Game", NULL },
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{ "Bonus Life", NULL },
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{ "Ghost Names", NULL },
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{ "Display FPS", NULL },
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{ "Restart", NULL },
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{ "Quit", NULL },
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};
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m = rb->menu_init(items, sizeof(items) / sizeof(*items),
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pacbox_menu_cb, NULL, NULL, NULL);
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rb->button_clear_queue();
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while (!menu_quit) {
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result=rb->menu_show(m);
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switch(result)
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{
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case 0:
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new_setting=settings.difficulty;
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rb->set_option("Difficulty", &new_setting, INT,
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difficulty_options , 2, NULL);
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if (new_setting != settings.difficulty) {
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settings.difficulty=new_setting;
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need_restart=true;
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}
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break;
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case 1:
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new_setting=settings.numlives;
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rb->set_option("Pacmen Per Game", &new_setting, INT,
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numlives_options , 4, NULL);
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if (new_setting != settings.numlives) {
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settings.numlives=new_setting;
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need_restart=true;
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}
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break;
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case 2:
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new_setting=settings.bonus;
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rb->set_option("Bonus Life", &new_setting, INT,
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bonus_options , 4, NULL);
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if (new_setting != settings.bonus) {
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settings.bonus=new_setting;
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need_restart=true;
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}
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break;
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case 3:
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new_setting=settings.ghostnames;
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rb->set_option("Ghost Names", &new_setting, INT,
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ghostname_options , 2, NULL);
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if (new_setting != settings.ghostnames) {
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settings.ghostnames=new_setting;
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need_restart=true;
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}
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break;
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case 4: /* Show FPS */
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rb->set_option("Display FPS",&settings.showfps,INT, noyes, 2, NULL);
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break;
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case 5: /* Restart */
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need_restart=true;
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menu_quit=1;
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break;
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default:
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menu_quit=1;
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break;
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}
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}
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rb->menu_exit(m);
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if (need_restart) {
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init_PacmanMachine(settings_to_dip(settings));
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}
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/* Possible results:
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exit game
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restart game
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usb connected
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*/
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return (result==6);
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}
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/*
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Runs the game engine for one frame.
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*/
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int gameProc( void )
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{
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int x,y;
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int fps;
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char str[80];
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int status;
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long end_time;
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unsigned char* vbuf = video_buffer;
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fb_data* dst;
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fb_data* next_dst;
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/* Run the machine for one frame (1/60th second) */
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run();
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frame_counter++;
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/* Check the button status */
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status = rb->button_status();
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#ifdef PACMAN_MENU
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if (status & PACMAN_MENU) {
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#else
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if (rb->button_hold()) {
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#endif
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end_time = *rb->current_tick;
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x = pacbox_menu();
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rb->lcd_clear_display();
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#ifdef HAVE_REMOTE_LCD
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rb->lcd_remote_clear_display();
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rb->lcd_remote_update();
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#endif
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if (x == 1) { return 1; }
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start_time += *rb->current_tick-end_time;
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}
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setDeviceMode( Joy1_Left, (status & PACMAN_LEFT) ? DeviceOn : DeviceOff);
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setDeviceMode( Joy1_Right, (status & PACMAN_RIGHT) ? DeviceOn : DeviceOff);
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setDeviceMode( Joy1_Up, (status & PACMAN_UP) ? DeviceOn : DeviceOff);
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setDeviceMode( Joy1_Down, (status & PACMAN_DOWN) ? DeviceOn : DeviceOff);
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setDeviceMode( CoinSlot_1, (status & PACMAN_COIN) ? DeviceOn : DeviceOff);
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setDeviceMode( Key_OnePlayer, (status & PACMAN_1UP) ? DeviceOn : DeviceOff);
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#ifdef PACMAN_2UP
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setDeviceMode( Key_TwoPlayers, (status & PACMAN_2UP) ? DeviceOn : DeviceOff);
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#endif
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/* We only update the screen every third frame - Pacman's native
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framerate is 60fps, so we are attempting to display 20fps */
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if( (frame_counter % (60/FPS)) == 0) {
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video_frames++;
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/* The following functions render the Pacman screen from the contents
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of the video and color ram. We first update the background, and
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then draw the Sprites on top.
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Note that we only redraw the parts of the background that have
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changed, which is why we need to keep a copy of the background without
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the sprites on top. Even with the memcpy, this is faster than redrawing
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the whole background.
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*/
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renderBackground( background );
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rb->memcpy(video_buffer,background,sizeof(video_buffer));
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renderSprites( video_buffer );
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#ifdef HAVE_LCD_COLOR
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#if (LCD_WIDTH >= 224) && (LCD_HEIGHT >= 288)
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/* Native resolution = 224x288 */
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(void)next_dst;
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dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS];
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for (y=0;y<ScreenHeight;y++) {
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for (x=0;x<ScreenWidth;x++) {
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*(dst++) = palette[*(vbuf++)];
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}
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dst += XOFS*2;
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}
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#elif (LCD_WIDTH >= 288) && (LCD_HEIGHT >= 224)
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/* Native resolution - rotated 90 degrees = 288x224 */
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next_dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight-1];
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for( y=ScreenHeight-1; y>=0; y-- ) {
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dst = (next_dst--);
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for( x=0; x<ScreenWidth; x++ ) {
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*dst = palette[*(vbuf++)];
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dst+=LCD_WIDTH;
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}
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}
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#elif (LCD_WIDTH >= 216) && (LCD_HEIGHT >= 168)
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/* 0.75 scaling - display 3 out of 4 pixels = 216x168
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Skipping pixel #2 out of 4 seems to give the most legible display
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*/
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next_dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+((ScreenHeight*3)/4)-1];
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for (y=ScreenHeight-1;y >= 0; y--) {
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if ((y & 3) != 1) {
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dst = (next_dst--);
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for (x=0;x<ScreenWidth;x++) {
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if ((x & 3) == 1) { vbuf++; }
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else {
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*dst = palette[*(vbuf++)];
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dst+=LCD_WIDTH;
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}
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}
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} else {
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vbuf+=ScreenWidth;
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}
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}
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#elif (LCD_WIDTH >= 144) && (LCD_HEIGHT >= 112)
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/* 0.5 scaling - display every other pixel = 144x112 */
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next_dst=&rb->lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight/2-1];
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for (y=(ScreenHeight/2)-1;y >= 0; y--) {
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dst = (next_dst--);
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for (x=0;x<ScreenWidth/2;x++) {
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*dst = palette[*(vbuf)];
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vbuf+=2;
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dst+=LCD_WIDTH;
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}
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vbuf+=ScreenWidth;
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}
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#endif
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#else /* Greyscale LCDs */
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#if (LCD_WIDTH >= 144) && (LCD_HEIGHT >= 112)
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#if LCD_PIXELFORMAT == VERTICAL_PACKING
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/* 0.5 scaling - display every other pixel = 144x112 */
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next_dst=&rb->lcd_framebuffer[YOFS/4*LCD_WIDTH+XOFS+ScreenHeight/2-1];
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for (y=(ScreenHeight/2)-1;y >= 0; y--) {
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dst = (next_dst--);
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for (x=0;x<ScreenWidth/8;x++) {
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*dst = (palette[*(vbuf+6)]<<6) | (palette[*(vbuf+4)] << 4) | (palette[*(vbuf+2)] << 2) | palette[*(vbuf)];
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vbuf+=8;
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dst+=LCD_WIDTH;
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}
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vbuf+=ScreenWidth;
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}
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#endif /* Vertical Packing */
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#endif /* Size >= 144x112 */
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#endif /* Not Colour */
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if (settings.showfps) {
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fps = (video_frames*HZ*100) / (*rb->current_tick-start_time);
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rb->snprintf(str,sizeof(str),"%d.%02d / %d fps ",fps/100,fps%100,
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FPS);
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rb->lcd_putsxy(0,0,str);
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}
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rb->lcd_update();
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#ifdef SIMULATOR
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/* Keep the framerate at Pacman's 60fps */
|
||||
end_time = start_time + (video_frames*HZ)/FPS;
|
||||
while (TIME_BEFORE(*rb->current_tick,end_time)) {
|
||||
rb->sleep(1);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
|
||||
{
|
||||
(void)parameter;
|
||||
int status;
|
||||
|
||||
rb = api;
|
||||
|
||||
#ifdef USE_IRAM
|
||||
rb->memcpy(iramstart, iramcopy, iramend-iramstart);
|
||||
rb->memset(iedata, 0, iend - iedata);
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
|
||||
rb->cpu_boost(true);
|
||||
#endif
|
||||
|
||||
rb->lcd_set_foreground(LCD_WHITE);
|
||||
rb->lcd_set_background(LCD_BLACK);
|
||||
rb->lcd_clear_display();
|
||||
rb->lcd_update();
|
||||
|
||||
/* Set the default settings (we should load these from a file) */
|
||||
settings.difficulty = 0; /* Normal */
|
||||
settings.numlives = 2; /* 3 lives */
|
||||
settings.bonus = 0; /* 10000 points */
|
||||
settings.ghostnames = 0; /* Normal names */
|
||||
settings.showfps = 0; /* Do not show FPS */
|
||||
|
||||
/* Initialise the hardware */
|
||||
init_PacmanMachine(settings_to_dip(settings));
|
||||
|
||||
/* Load the romset */
|
||||
if (loadROMS()) {
|
||||
start_time = *rb->current_tick-1;
|
||||
do {
|
||||
status = gameProc();
|
||||
} while (!status);
|
||||
} else {
|
||||
rb->splash(HZ*2,true,"No ROMs in /.rockbox/pacman/");
|
||||
}
|
||||
|
||||
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
|
||||
rb->cpu_boost(false);
|
||||
#endif
|
||||
|
||||
return PLUGIN_OK;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue