c0c6cff3c1
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15070 a1c6a512-1295-4272-9138-f99709370657
287 lines
7.1 KiB
C
287 lines
7.1 KiB
C
/***************************************************************************
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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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* Gameboy emulator based on gnuboy
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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 "loader.h"
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#include "rockmacros.h"
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PLUGIN_HEADER
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PLUGIN_IRAM_DECLARE
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/* here is a global api struct pointer. while not strictly necessary,
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it's nice not to have to pass the api pointer in all function calls
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in the plugin */
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struct plugin_api* rb;
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int shut,cleanshut;
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char *errormsg;
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int gnuboy_main(char *rom);
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void pcm_close(void);
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#define optionname "options"
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void die(char *message, ...)
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{
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shut=1;
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errormsg=message;
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}
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struct options options;
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void *audio_bufferbase;
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void *audio_bufferpointer;
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size_t audio_buffer_free;
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void *my_malloc(size_t size)
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{
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void *alloc;
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if (size + 4 > audio_buffer_free)
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return 0;
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alloc = audio_bufferpointer;
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audio_bufferpointer += size + 4;
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audio_buffer_free -= size + 4;
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return alloc;
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}
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/* Using #define isn't enough with GCC 4.0.1 */
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void* memcpy(void* dst, const void* src, size_t size)
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{
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return rb->memcpy(dst, src, size);
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}
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void setoptions (void)
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{
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int fd;
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DIR* dir;
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char optionsave[sizeof(savedir)+sizeof(optionname)];
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dir=rb->opendir(savedir);
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if(!dir)
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rb->mkdir(savedir);
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else
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rb->closedir(dir);
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snprintf(optionsave, sizeof(optionsave), "%s/%s", savedir, optionname);
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fd = open(optionsave, O_RDONLY);
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if(fd < 0) /* no options to read, set defaults */
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{
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options.LEFT=BUTTON_LEFT;
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options.RIGHT=BUTTON_RIGHT;
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#if (CONFIG_KEYPAD == IRIVER_H100_PAD)
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options.UP=BUTTON_UP;
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options.DOWN=BUTTON_DOWN;
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options.A=BUTTON_ON;
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options.B=BUTTON_OFF;
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options.START=BUTTON_REC;
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options.SELECT=BUTTON_SELECT;
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options.MENU=BUTTON_MODE;
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#elif (CONFIG_KEYPAD == IRIVER_H300_PAD)
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options.UP=BUTTON_UP;
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options.DOWN=BUTTON_DOWN;
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options.A=BUTTON_REC;
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options.B=BUTTON_MODE;
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options.START=BUTTON_ON;
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options.SELECT=BUTTON_SELECT;
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options.MENU=BUTTON_OFF;
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#elif CONFIG_KEYPAD == RECORDER_PAD
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options.UP=BUTTON_UP;
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options.DOWN=BUTTON_DOWN;
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options.A=BUTTON_F1;
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options.B=BUTTON_F2;
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options.START=BUTTON_F3;
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options.SELECT=BUTTON_PLAY;
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options.MENU=BUTTON_OFF;
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#elif CONFIG_KEYPAD == IPOD_4G_PAD
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options.UP=BUTTON_MENU;
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options.DOWN=BUTTON_PLAY;
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options.A=BUTTON_NONE;
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options.B=BUTTON_NONE;
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options.START=BUTTON_SELECT;
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options.SELECT=BUTTON_NONE;
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options.MENU=(BUTTON_SELECT | BUTTON_REPEAT);
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#elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
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options.UP=BUTTON_UP;
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options.DOWN=BUTTON_DOWN;
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options.A=BUTTON_PLAY;
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options.B=BUTTON_EQ;
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options.START=BUTTON_MODE;
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options.SELECT=(BUTTON_SELECT | BUTTON_REL);
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options.MENU=(BUTTON_SELECT | BUTTON_REPEAT);
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#elif CONFIG_KEYPAD == GIGABEAT_PAD
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options.UP=BUTTON_UP;
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options.DOWN=BUTTON_DOWN;
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options.A=BUTTON_VOL_UP;
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options.B=BUTTON_VOL_DOWN;
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options.START=BUTTON_A;
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options.SELECT=BUTTON_SELECT;
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options.MENU=BUTTON_MENU;
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#elif CONFIG_KEYPAD == SANSA_E200_PAD
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options.UP=BUTTON_UP;
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options.DOWN=BUTTON_DOWN;
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options.A=BUTTON_SELECT;
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options.B=BUTTON_REC;
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options.START=BUTTON_SCROLL_UP;
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options.SELECT=BUTTON_SCROLL_DOWN;
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options.MENU=BUTTON_POWER;
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#elif CONFIG_KEYPAD == SANSA_C200_PAD
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options.UP=BUTTON_UP;
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options.DOWN=BUTTON_DOWN;
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options.A=BUTTON_SELECT;
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options.B=BUTTON_REC;
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options.START=BUTTON_VOL_DOWN;
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options.SELECT=BUTTON_VOL_UP;
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options.MENU=BUTTON_POWER;
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#elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
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options.UP=BUTTON_UP;
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options.DOWN=BUTTON_DOWN;
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options.A=BUTTON_PLAY;
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options.B=BUTTON_REC;
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options.START=BUTTON_SELECT;
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options.SELECT=BUTTON_NONE;
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options.MENU=BUTTON_POWER;
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#elif CONFIG_KEYPAD == IRIVER_H10_PAD
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options.UP=BUTTON_SCROLL_UP;
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options.DOWN=BUTTON_SCROLL_DOWN;
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options.A=BUTTON_PLAY;
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options.B=BUTTON_FF;
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options.START=BUTTON_REW;
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options.SELECT=BUTTON_NONE;
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options.MENU=BUTTON_POWER;
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#endif
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options.maxskip=4;
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options.fps=0;
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options.showstats=0;
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#if (LCD_WIDTH>=160) && (LCD_HEIGHT>=144)
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options.fullscreen=0;
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#else
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options.fullscreen=1;
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#endif
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options.sound=1;
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options.pal=0;
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}
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else
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read(fd,&options, sizeof(options));
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close(fd);
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}
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void savesettings(void)
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{
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int fd;
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char optionsave[sizeof(savedir)+sizeof(optionname)];
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if(options.dirty)
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{
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options.dirty=0;
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snprintf(optionsave, sizeof(optionsave), "%s/%s", savedir, optionname);
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fd = open(optionsave, O_WRONLY|O_CREAT|O_TRUNC);
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write(fd,&options, sizeof(options));
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close(fd);
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}
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}
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/* this is the plugin entry point */
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enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
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{
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PLUGIN_IRAM_INIT(api)
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/* if you are using a global api pointer, don't forget to copy it!
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otherwise you will get lovely "I04: IllInstr" errors... :-) */
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rb = api;
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rb->lcd_setfont(0);
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rb->lcd_clear_display();
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if (!parameter)
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{
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rb->splash(HZ*3, "Play gameboy ROM file! (.gb/.gbc)");
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return PLUGIN_OK;
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}
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if(rb->audio_status())
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{
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audio_bufferbase = audio_bufferpointer
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= rb->plugin_get_buffer(&audio_buffer_free);
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plugbuf=true;
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}
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else
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{
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audio_bufferbase = audio_bufferpointer
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= rb->plugin_get_audio_buffer(&audio_buffer_free);
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plugbuf=false;
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}
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#if MEM <= 8 && !defined(SIMULATOR)
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/* loaded as an overlay plugin, protect from overwriting ourselves */
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if ((unsigned)(plugin_start_addr - (unsigned char *)audio_bufferbase)
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< audio_buffer_free)
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audio_buffer_free = plugin_start_addr - (unsigned char *)audio_bufferbase;
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#endif
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setoptions();
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shut=0;
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cleanshut=0;
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#ifdef HAVE_WHEEL_POSITION
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rb->wheel_send_events(false);
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#endif
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gnuboy_main(parameter);
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#ifdef HAVE_WHEEL_POSITION
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rb->wheel_send_events(true);
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#endif
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if(shut&&!cleanshut)
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{
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rb->splash(HZ/2, errormsg);
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return PLUGIN_ERROR;
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}
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if(!rb->audio_status())
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pcm_close();
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rb->splash(HZ/2, "Closing Rockboy");
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savesettings();
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cleanup();
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return PLUGIN_OK;
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}
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