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rockbox/apps/plugins/rockboy/rockboy.c
Frank Gevaerts 8c08511013 revert plugin_api part of r18830, as this was the wrong solution for those 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18831 a1c6a512-1295-4272-9138-f99709370657
2008-10-18 23:50:05 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Gameboy emulator based on gnuboy
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#include "loader.h"
#include "rockmacros.h"
#include "input.h"
#include "emu.h"
#include "hw.h"
#include "pcm.h"
PLUGIN_HEADER
PLUGIN_IRAM_DECLARE
/* here is a global api struct pointer. while not strictly necessary,
it's nice not to have to pass the api pointer in all function calls
in the plugin */
const struct plugin_api* rb;
int shut,cleanshut;
char *errormsg;
#define optionname "options"
void die(char *message, ...)
{
shut=1;
errormsg=message;
}
struct options options;
void *audio_bufferbase;
void *audio_bufferpointer;
size_t audio_buffer_free;
void *my_malloc(size_t size)
{
void *alloc;
if (size + 4 > audio_buffer_free)
return 0;
alloc = audio_bufferpointer;
audio_bufferpointer += size + 4;
audio_buffer_free -= size + 4;
return alloc;
}
/* Using #define isn't enough with GCC 4.0.1 */
void* memcpy(void* dst, const void* src, size_t size)
{
return rb->memcpy(dst, src, size);
}
static void setoptions (void)
{
int fd;
DIR* dir;
char optionsave[sizeof(savedir)+sizeof(optionname)];
dir=rb->opendir(savedir);
if(!dir)
rb->mkdir(savedir);
else
rb->closedir(dir);
snprintf(optionsave, sizeof(optionsave), "%s/%s", savedir, optionname);
fd = open(optionsave, O_RDONLY);
if(fd < 0) /* no options to read, set defaults */
{
#ifdef HAVE_TOUCHSCREEN
options.LEFT=BUTTON_MIDLEFT;
options.RIGHT=BUTTON_MIDRIGHT;
#else
options.LEFT=BUTTON_LEFT;
options.RIGHT=BUTTON_RIGHT;
#endif
#if CONFIG_KEYPAD == IRIVER_H100_PAD
options.UP=BUTTON_UP;
options.DOWN=BUTTON_DOWN;
options.A=BUTTON_ON;
options.B=BUTTON_OFF;
options.START=BUTTON_REC;
options.SELECT=BUTTON_SELECT;
options.MENU=BUTTON_MODE;
#elif CONFIG_KEYPAD == IRIVER_H300_PAD
options.UP=BUTTON_UP;
options.DOWN=BUTTON_DOWN;
options.A=BUTTON_REC;
options.B=BUTTON_MODE;
options.START=BUTTON_ON;
options.SELECT=BUTTON_SELECT;
options.MENU=BUTTON_OFF;
#elif CONFIG_KEYPAD == RECORDER_PAD
options.UP=BUTTON_UP;
options.DOWN=BUTTON_DOWN;
options.A=BUTTON_F1;
options.B=BUTTON_F2;
options.START=BUTTON_F3;
options.SELECT=BUTTON_PLAY;
options.MENU=BUTTON_OFF;
#elif CONFIG_KEYPAD == IPOD_4G_PAD
options.UP=BUTTON_MENU;
options.DOWN=BUTTON_PLAY;
options.A=BUTTON_NONE;
options.B=BUTTON_NONE;
options.START=BUTTON_SELECT;
options.SELECT=BUTTON_NONE;
options.MENU=(BUTTON_SELECT | BUTTON_REPEAT);
#elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
options.UP=BUTTON_UP;
options.DOWN=BUTTON_DOWN;
options.A=BUTTON_PLAY;
options.B=BUTTON_EQ;
options.START=BUTTON_MODE;
options.SELECT=(BUTTON_SELECT | BUTTON_REL);
options.MENU=(BUTTON_SELECT | BUTTON_REPEAT);
#elif CONFIG_KEYPAD == GIGABEAT_PAD
options.UP=BUTTON_UP;
options.DOWN=BUTTON_DOWN;
options.A=BUTTON_VOL_UP;
options.B=BUTTON_VOL_DOWN;
options.START=BUTTON_A;
options.SELECT=BUTTON_SELECT;
options.MENU=BUTTON_MENU;
#elif CONFIG_KEYPAD == SANSA_E200_PAD
options.UP=BUTTON_UP;
options.DOWN=BUTTON_DOWN;
options.A=BUTTON_SELECT;
options.B=BUTTON_REC;
options.START=BUTTON_SCROLL_BACK;
options.SELECT=BUTTON_SCROLL_FWD;
options.MENU=BUTTON_POWER;
#elif CONFIG_KEYPAD == SANSA_C200_PAD
options.UP=BUTTON_UP;
options.DOWN=BUTTON_DOWN;
options.A=BUTTON_SELECT;
options.B=BUTTON_REC;
options.START=BUTTON_VOL_DOWN;
options.SELECT=BUTTON_VOL_UP;
options.MENU=BUTTON_POWER;
#elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
options.UP=BUTTON_UP;
options.DOWN=BUTTON_DOWN;
options.A=BUTTON_PLAY;
options.B=BUTTON_REC;
options.START=BUTTON_SELECT;
options.SELECT=BUTTON_NONE;
options.MENU=BUTTON_POWER;
#elif CONFIG_KEYPAD == IRIVER_H10_PAD
options.UP=BUTTON_SCROLL_UP;
options.DOWN=BUTTON_SCROLL_DOWN;
options.A=BUTTON_PLAY;
options.B=BUTTON_FF;
options.START=BUTTON_REW;
options.SELECT=BUTTON_NONE;
options.MENU=BUTTON_POWER;
#elif CONFIG_KEYPAD == MROBE500_PAD
options.UP=BUTTON_RC_PLAY;
options.DOWN=BUTTON_RC_DOWN;
options.LEFT=BUTTON_RC_REW;
options.RIGHT=BUTTON_RC_FF;
options.A=BUTTON_RC_VOL_DOWN;
options.B=BUTTON_RC_VOL_UP;
options.START=BUTTON_RC_HEART;
options.SELECT=BUTTON_RC_MODE;
options.MENU=BUTTON_POWER;
#elif CONFIG_KEYPAD == COWOND2_PAD
options.A=BUTTON_PLUS;
options.B=BUTTON_MINUS;
options.MENU=BUTTON_MENU;
#elif CONFIG_KEYPAD == GIGABEAT_S_PAD
options.UP=BUTTON_UP;
options.DOWN=BUTTON_DOWN;
options.A=BUTTON_VOL_UP;
options.B=BUTTON_VOL_DOWN;
options.START=BUTTON_PLAY;
options.SELECT=BUTTON_SELECT;
options.MENU=BUTTON_MENU;
#else
#error No Keymap Defined!
#endif
#ifdef HAVE_TOUCHSCREEN
options.UP=BUTTON_TOPMIDDLE;
options.DOWN=BUTTON_BOTTOMMIDDLE;
options.START=BUTTON_TOPRIGHT;
options.SELECT=BUTTON_CENTER;
#if CONFIG_KEYPAD != COWOND2_PAD
options.A=BUTTON_BOTTOMLEFT;
options.B=BUTTON_BOTTOMRIGHT;
options.MENU=BUTTON_TOPLEFT;
#endif
#endif
options.maxskip=4;
options.fps=0;
options.showstats=0;
#if (LCD_WIDTH>=160) && (LCD_HEIGHT>=144)
options.scaling=0;
#else
options.scaling=1;
#endif
options.sound=1;
options.pal=0;
}
else
read(fd,&options, sizeof(options));
close(fd);
}
static void savesettings(void)
{
int fd;
char optionsave[sizeof(savedir)+sizeof(optionname)];
if(options.dirty)
{
options.dirty=0;
snprintf(optionsave, sizeof(optionsave), "%s/%s", savedir, optionname);
fd = open(optionsave, O_WRONLY|O_CREAT|O_TRUNC);
write(fd,&options, sizeof(options));
close(fd);
}
}
void doevents(void)
{
event_t ev;
int st;
ev_poll();
while (ev_getevent(&ev))
{
if (ev.type != EV_PRESS && ev.type != EV_RELEASE)
continue;
st = (ev.type != EV_RELEASE);
pad_set(ev.code, st);
}
}
static int gnuboy_main(const char *rom)
{
rb->lcd_puts(0,0,"Init video");
vid_init();
rb->lcd_puts(0,1,"Init sound");
pcm_init();
rb->lcd_puts(0,2,"Loading rom");
loader_init(rom);
if(shut)
return PLUGIN_ERROR;
rb->lcd_puts(0,3,"Emu reset");
emu_reset();
rb->lcd_puts(0,4,"Emu run");
rb->lcd_clear_display();
rb->lcd_update();
emu_run();
/* never reached */
return PLUGIN_OK;
}
/* this is the plugin entry point */
enum plugin_status plugin_start(const struct plugin_api* api, const void* parameter)
{
PLUGIN_IRAM_INIT(api)
/* if you are using a global api pointer, don't forget to copy it!
otherwise you will get lovely "I04: IllInstr" errors... :-) */
rb = api;
rb->lcd_setfont(0);
rb->lcd_clear_display();
if (!parameter)
{
rb->splash(HZ*3, "Play gameboy ROM file! (.gb/.gbc)");
return PLUGIN_OK;
}
if(rb->audio_status())
{
audio_bufferbase = audio_bufferpointer
= rb->plugin_get_buffer(&audio_buffer_free);
plugbuf=true;
}
else
{
audio_bufferbase = audio_bufferpointer
= rb->plugin_get_audio_buffer(&audio_buffer_free);
plugbuf=false;
}
#if MEM <= 8 && !defined(SIMULATOR)
/* loaded as an overlay plugin, protect from overwriting ourselves */
if ((unsigned)(plugin_start_addr - (unsigned char *)audio_bufferbase)
< audio_buffer_free)
audio_buffer_free = plugin_start_addr - (unsigned char *)audio_bufferbase;
#endif
setoptions();
shut=0;
cleanshut=0;
#ifdef HAVE_WHEEL_POSITION
rb->wheel_send_events(false);
#endif
gnuboy_main(parameter);
#ifdef HAVE_WHEEL_POSITION
rb->wheel_send_events(true);
#endif
if(shut&&!cleanshut)
{
rb->splash(HZ/2, errormsg);
return PLUGIN_ERROR;
}
if(!rb->audio_status())
pcm_close();
rb->splash(HZ/2, "Closing Rockboy");
savesettings();
cleanup();
return PLUGIN_OK;
}
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