mirror of
https://github.com/retro100/dosbox-wii.git
synced 2024-11-17 15:49:15 +01:00
134 lines
3.4 KiB
C++
134 lines
3.4 KiB
C++
/*
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* Copyright (C) 2002-2006 The DOSBox Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <string.h>
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#include "dosbox.h"
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#include "inout.h"
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#include "mixer.h"
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#include "pic.h"
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#include "setup.h"
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#define DISNEY_BASE 0x0378
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#define DISNEY_SIZE 32
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static struct {
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Bit8u data;
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Bit8u status;
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Bit8u control;
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Bit8u buffer[DISNEY_SIZE];
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Bitu used;Bitu last_used;
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MixerChannel * chan;
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} disney;
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static void disney_write(Bitu port,Bitu val,Bitu iolen) {
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if (!disney.last_used) {
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disney.chan->Enable(true);
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}
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disney.last_used=PIC_Ticks;
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switch (port-DISNEY_BASE) {
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case 0: /* Data Port */
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disney.data=val;
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break;
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case 1: /* Status Port */
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LOG(LOG_MISC,LOG_NORMAL)("DISNEY:Status write %x",val);
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break;
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case 2: /* Control Port */
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// LOG_WARN("DISNEY:Control write %x",val);
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if (val&0x8) {
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if (disney.used<DISNEY_SIZE) {
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disney.buffer[disney.used++]=disney.data;
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}
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}
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if (val&0x10) LOG(LOG_MISC,LOG_ERROR)("DISNEY:Parallel IRQ Enabled");
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disney.control=val;
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break;
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}
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}
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static Bitu disney_read(Bitu port,Bitu iolen) {
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switch (port-DISNEY_BASE) {
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case 0: /* Data Port */
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// LOG(LOG_MISC,LOG_NORMAL)("DISNEY:Read from data port");
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return disney.data;
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break;
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case 1: /* Status Port */
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// LOG(LOG_MISC,"DISNEY:Read from status port %X",disney.status);
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if (disney.used>=16) return 0x40;
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else return 0x0;
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break;
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case 2: /* Control Port */
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LOG(LOG_MISC,LOG_NORMAL)("DISNEY:Read from control port");
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return disney.control;
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break;
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}
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return 0xff;
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}
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static void DISNEY_CallBack(Bitu len) {
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if (!len) return;
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if (disney.used>len) {
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disney.chan->AddSamples_m8(len,disney.buffer);
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memmove(disney.buffer,&disney.buffer[len],disney.used-len);
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disney.used-=len;
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} else {
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disney.chan->AddSamples_m8(disney.used,disney.buffer);
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disney.chan->AddSilence();
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disney.used=0;
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}
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if (disney.last_used+5000<PIC_Ticks) {
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disney.last_used=0;
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disney.chan->Enable(false);
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}
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}
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class DISNEY: public Module_base {
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private:
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IO_ReadHandleObject ReadHandler;
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IO_WriteHandleObject WriteHandler;
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MixerObject MixerChan;
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public:
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DISNEY(Section* configuration):Module_base(configuration) {
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Section_prop * section=static_cast<Section_prop *>(configuration);
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if(!section->Get_bool("disney")) return;
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WriteHandler.Install(DISNEY_BASE,disney_write,IO_MB,3);
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ReadHandler.Install(DISNEY_BASE,disney_read,IO_MB,3);
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disney.chan=MixerChan.Install(&DISNEY_CallBack,7000,"DISNEY");
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disney.status=0x84;
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disney.control=0;
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disney.used=0;
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disney.last_used=0;
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}
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~DISNEY(){ }
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};
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static DISNEY* test;
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static void DISNEY_ShutDown(Section* sec){
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delete test;
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}
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void DISNEY_Init(Section* sec) {
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test = new DISNEY(sec);
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sec->AddDestroyFunction(&DISNEY_ShutDown,true);
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}
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