forked from len0rd/rockbox
23d9812273
struct plugin_api *rb is declared in PLUGIN_HEADER, and pointed to by __header.api the loader uses this pointer to initialize rb before calling entry_point entry_point is no longer passed a pointer to the plugin API all plugins, and pluginlib functions, are modified to refer to the global rb pluginlib functions which only served to copy the API pointer are removed git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19776 a1c6a512-1295-4272-9138-f99709370657
383 lines
9.4 KiB
C
383 lines
9.4 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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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#include "input.h"
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#include "emu.h"
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#include "hw.h"
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#include "pcm.h"
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PLUGIN_HEADER
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PLUGIN_IRAM_DECLARE
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int shut,cleanshut;
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char *errormsg;
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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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static 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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#ifdef HAVE_TOUCHSCREEN
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options.LEFT=BUTTON_MIDLEFT;
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options.RIGHT=BUTTON_MIDRIGHT;
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#else
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options.LEFT=BUTTON_LEFT;
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options.RIGHT=BUTTON_RIGHT;
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#endif
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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_BACK;
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options.SELECT=BUTTON_SCROLL_FWD;
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options.MENU=BUTTON_POWER;
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#elif CONFIG_KEYPAD == SANSA_FUZE_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_HOME;
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options.START=BUTTON_SCROLL_BACK;
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options.SELECT=BUTTON_SCROLL_FWD;
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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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#elif CONFIG_KEYPAD == MROBE500_PAD
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options.UP=BUTTON_RC_PLAY;
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options.DOWN=BUTTON_RC_DOWN;
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options.LEFT=BUTTON_RC_REW;
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options.RIGHT=BUTTON_RC_FF;
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options.A=BUTTON_RC_VOL_DOWN;
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options.B=BUTTON_RC_VOL_UP;
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options.START=BUTTON_RC_HEART;
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options.SELECT=BUTTON_RC_MODE;
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options.MENU=BUTTON_POWER;
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#elif CONFIG_KEYPAD == COWOND2_PAD
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options.A=BUTTON_PLUS;
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options.B=BUTTON_MINUS;
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options.MENU=BUTTON_MENU;
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#elif CONFIG_KEYPAD == GIGABEAT_S_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_PLAY;
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options.SELECT=BUTTON_SELECT;
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options.MENU=BUTTON_MENU;
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#elif CONFIG_KEYPAD == CREATIVEZVM_PAD
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options.UP=BUTTON_UP;
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options.DOWN=BUTTON_DOWN;
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options.A=BUTTON_CUSTOM;
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options.B=BUTTON_PLAY;
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options.START=BUTTON_BACK;
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options.SELECT=BUTTON_SELECT;
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options.MENU=BUTTON_MENU;
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#else
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#error No Keymap Defined!
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#endif
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#ifdef HAVE_TOUCHSCREEN
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options.UP=BUTTON_TOPMIDDLE;
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options.DOWN=BUTTON_BOTTOMMIDDLE;
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options.START=BUTTON_TOPRIGHT;
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options.SELECT=BUTTON_CENTER;
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#if CONFIG_KEYPAD != COWOND2_PAD
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options.A=BUTTON_BOTTOMLEFT;
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options.B=BUTTON_BOTTOMRIGHT;
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options.MENU=BUTTON_TOPLEFT;
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#endif
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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.scaling=0;
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#else
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options.scaling=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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static 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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void doevents(void)
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{
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event_t ev;
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int st;
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ev_poll();
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while (ev_getevent(&ev))
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{
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if (ev.type != EV_PRESS && ev.type != EV_RELEASE)
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continue;
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st = (ev.type != EV_RELEASE);
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pad_set(ev.code, st);
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}
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}
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static int gnuboy_main(const char *rom)
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{
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rb->lcd_puts(0,0,"Init video");
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vid_init();
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rb->lcd_puts(0,1,"Init sound");
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pcm_init();
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rb->lcd_puts(0,2,"Loading rom");
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loader_init(rom);
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if(shut)
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return PLUGIN_ERROR;
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rb->lcd_puts(0,3,"Emu reset");
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emu_reset();
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rb->lcd_puts(0,4,"Emu run");
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rb->lcd_clear_display();
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rb->lcd_update();
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emu_run();
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/* never reached */
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return PLUGIN_OK;
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}
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/* this is the plugin entry point */
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enum plugin_status plugin_start(const void* parameter)
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{
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PLUGIN_IRAM_INIT(rb)
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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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