672 lines
17 KiB
C++
672 lines
17 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2023 tildearrow and contributors
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "pcspkr.h"
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#include "../engine.h"
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#include "../../ta-log.h"
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#include <math.h>
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#ifdef __linux__
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#include <sys/ioctl.h>
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#include <sys/select.h>
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#include <fcntl.h>
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#include <unistd.h>
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#ifdef HAVE_LINUX_INPUT
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#include <linux/input.h>
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#endif
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#ifdef HAVE_LINUX_KD
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#include <linux/kd.h>
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#endif
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#include <time.h>
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#ifdef HAVE_SYS_IO
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#include <sys/io.h>
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#endif
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#endif
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#define PCSPKR_DIVIDER 4
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#define CHIP_DIVIDER 1
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const char* regCheatSheetPCSpeaker[]={
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"Period", "0",
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NULL
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};
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void _pcSpeakerThread(void* inst) {
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((DivPlatformPCSpeaker*)inst)->pcSpeakerThread();
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}
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void DivPlatformPCSpeaker::pcSpeakerThread() {
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std::unique_lock<std::mutex> unique(realOutSelfLock);
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RealQueueVal r(0,0,0);
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logD("starting PC speaker out thread");
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while (!realOutQuit) {
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realQueueLock.lock();
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if (realQueue.empty()) {
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realQueueLock.unlock();
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realOutCond.wait(unique);
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continue;
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} else {
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r=realQueue.front();
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realQueue.pop();
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}
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realQueueLock.unlock();
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#ifdef __linux__
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static struct timespec ts, tSleep, rSleep;
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if (clock_gettime(CLOCK_MONOTONIC,&ts)<0) {
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logW("could not get time!");
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tSleep.tv_sec=0;
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tSleep.tv_nsec=0;
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} else {
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tSleep.tv_sec=r.tv_sec-ts.tv_sec;
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tSleep.tv_nsec=r.tv_nsec-ts.tv_nsec;
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if (tSleep.tv_nsec<0) {
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tSleep.tv_sec--;
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tSleep.tv_nsec+=1000000000;
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}
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}
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if (tSleep.tv_nsec>0 || tSleep.tv_sec>0) {
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nanosleep(&tSleep,&rSleep);
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}
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if (beepFD>=0) {
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switch (realOutMethod) {
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#ifdef HAVE_LINUX_INPUT
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case 0: { // evdev
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static struct input_event ie;
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ie.time.tv_sec=r.tv_sec;
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ie.time.tv_usec=r.tv_nsec/1000;
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ie.type=EV_SND;
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ie.code=SND_TONE;
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if (r.val>0) {
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ie.value=chipClock/r.val;
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} else {
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ie.value=0;
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}
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if (write(beepFD,&ie,sizeof(struct input_event))<0) {
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logW("error while writing frequency! %s",strerror(errno));
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} else {
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//logV("writing freq: %d",r.val);
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}
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break;
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}
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#endif
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#ifdef HAVE_LINUX_KD
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case 1: // KIOCSOUND (on tty)
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if (ioctl(beepFD,KIOCSOUND,r.val)<0) {
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logW("ioctl error! %s",strerror(errno));
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}
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break;
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#endif
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case 2: { // /dev/port
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unsigned char bOut;
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bOut=0;
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if (r.val==0) {
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lseek(beepFD,0x61,SEEK_SET);
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if (read(beepFD,&bOut,1)<1) {
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logW("read from 0x61: %s",strerror(errno));
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}
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bOut&=(~3);
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lseek(beepFD,0x61,SEEK_SET);
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if (write(beepFD,&bOut,1)<1) {
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logW("write to 0x61: %s",strerror(errno));
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}
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} else {
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lseek(beepFD,0x43,SEEK_SET);
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bOut=0xb6;
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if (write(beepFD,&bOut,1)<1) {
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logW("write to 0x43: %s",strerror(errno));
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}
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lseek(beepFD,0x42,SEEK_SET);
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bOut=r.val&0xff;
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if (write(beepFD,&bOut,1)<1) {
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logW("write to 0x42: %s",strerror(errno));
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}
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lseek(beepFD,0x42,SEEK_SET);
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bOut=r.val>>8;
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if (write(beepFD,&bOut,1)<1) {
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logW("write to 0x42: %s",strerror(errno));
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}
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lseek(beepFD,0x61,SEEK_SET);
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if (read(beepFD,&bOut,1)<1) {
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logW("read from 0x61: %s",strerror(errno));
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}
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bOut|=3;
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lseek(beepFD,0x61,SEEK_SET);
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if (write(beepFD,&bOut,1)<1) {
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logW("write to 0x61: %s",strerror(errno));
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}
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}
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break;
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}
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#ifdef HAVE_LINUX_KD
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case 3: // KIOCSOUND (on stdout)
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if (ioctl(beepFD,KIOCSOUND,r.val)<0) {
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logW("ioctl error! %s",strerror(errno));
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}
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break;
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#endif
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#ifdef HAVE_SYS_IO
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case 4: // outb()
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if (r.val==0) {
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outb(inb(0x61)&(~3),0x61);
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realOutEnabled=false;
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} else {
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outb(0xb6,0x43);
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outb(r.val&0xff,0x42);
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outb(r.val>>8,0x42);
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if (!realOutEnabled) {
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outb(inb(0x61)|3,0x61);
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realOutEnabled=true;
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}
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}
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break;
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#endif
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}
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} else {
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//logV("not writing because fd is less than 0");
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}
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#endif
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}
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logD("stopping PC speaker out thread");
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}
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const char** DivPlatformPCSpeaker::getRegisterSheet() {
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return regCheatSheetPCSpeaker;
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}
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const float cut=0.05;
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const float reso=0.06;
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void DivPlatformPCSpeaker::acquire_unfilt(short** buf, size_t len) {
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int out=0;
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for (size_t i=0; i<len; i++) {
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if (on) {
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pos-=PCSPKR_DIVIDER;
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if (pos>freq) pos=freq;
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while (pos<0) {
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if (freq<1) {
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pos=1;
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} else {
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pos+=freq;
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}
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}
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out=(pos>(freq>>1) && !isMuted[0])?32767:0;
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buf[0][i]=out;
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oscBuf->data[oscBuf->needle++]=out;
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} else {
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buf[0][i]=0;
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oscBuf->data[oscBuf->needle++]=0;
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}
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}
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}
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void DivPlatformPCSpeaker::acquire_cone(short** buf, size_t len) {
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for (size_t i=0; i<len; i++) {
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if (on) {
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pos-=PCSPKR_DIVIDER;
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if (pos>freq) pos=freq;
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while (pos<0) {
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if (freq<1) {
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pos=1;
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} else {
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pos+=freq;
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}
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}
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float next=(pos>((freq+16)>>1) && !isMuted[0])?1:0;
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low+=0.04*band;
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band+=0.04*(next-low-band);
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float out=(low+band)*0.75;
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if (out>1.0) out=1.0;
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if (out<-1.0) out=-1.0;
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buf[0][i]=out*32767;
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oscBuf->data[oscBuf->needle++]=out*32767;
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} else {
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buf[0][i]=0;
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oscBuf->data[oscBuf->needle++]=0;
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}
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}
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}
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void DivPlatformPCSpeaker::acquire_piezo(short** buf, size_t len) {
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for (size_t i=0; i<len; i++) {
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if (on) {
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pos-=PCSPKR_DIVIDER;
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if (pos>freq) pos=freq;
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while (pos<0) {
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if (freq<1) {
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pos=1;
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} else {
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pos+=freq;
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}
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}
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float next=(pos>((freq+64)>>1) && !isMuted[0])?1:0;
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low+=cut*band;
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band+=cut*(next-low-(reso*band));
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float out=band*0.15-(next-low)*0.06;
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if (out>1.0) out=1.0;
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if (out<-1.0) out=-1.0;
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buf[0][i]=out*32767;
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oscBuf->data[oscBuf->needle++]=out*32767;
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} else {
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buf[0][i]=0;
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oscBuf->data[oscBuf->needle++]=0;
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}
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}
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}
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void DivPlatformPCSpeaker::beepFreq(int freq, int delay) {
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realQueueLock.lock();
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#ifdef __linux__
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struct timespec ts;
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double addition=1000000000.0*(double)delay/parent->getAudioDescGot().rate;
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addition+=1500000000.0*((double)parent->getAudioDescGot().bufsize/parent->getAudioDescGot().rate);
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if (clock_gettime(CLOCK_MONOTONIC,&ts)<0) {
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ts.tv_sec=0;
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ts.tv_nsec=0;
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} else {
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ts.tv_nsec+=addition;
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while (ts.tv_nsec>=1000000000) {
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ts.tv_sec++;
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ts.tv_nsec-=1000000000;
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}
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}
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realQueue.push(RealQueueVal(ts.tv_sec,ts.tv_nsec,freq));
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#else
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realQueue.push(RealQueueVal(0,0,freq));
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#endif
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realQueueLock.unlock();
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realOutCond.notify_one();
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}
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void DivPlatformPCSpeaker::acquire_real(short** buf, size_t len) {
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int out=0;
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if (lastOn!=on || lastFreq!=freq) {
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lastOn=on;
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lastFreq=freq;
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beepFreq((on && !isMuted[0])?freq:0,parent->getBufferPos());
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}
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for (size_t i=0; i<len; i++) {
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if (on) {
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pos-=PCSPKR_DIVIDER;
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if (pos>freq) pos=freq;
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while (pos<0) {
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if (freq<1) {
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pos=1;
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} else {
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pos+=freq;
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}
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}
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out=(pos>(freq>>1) && !isMuted[0])?32767:0;
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oscBuf->data[oscBuf->needle++]=out;
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} else {
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oscBuf->data[oscBuf->needle++]=0;
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}
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buf[0][i]=0;
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}
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}
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void DivPlatformPCSpeaker::acquire(short** buf, size_t len) {
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switch (speakerType) {
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case 0:
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acquire_unfilt(buf,len);
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break;
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case 1:
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acquire_cone(buf,len);
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break;
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case 2:
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acquire_piezo(buf,len);
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break;
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case 3:
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acquire_real(buf,len);
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break;
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}
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}
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void DivPlatformPCSpeaker::tick(bool sysTick) {
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for (int i=0; i<1; i++) {
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chan[i].std.next();
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if (chan[i].std.vol.had) {
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chan[i].outVol=(chan[i].vol && chan[i].std.vol.val);
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on=chan[i].outVol;
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}
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if (NEW_ARP_STRAT) {
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chan[i].handleArp();
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} else if (chan[i].std.arp.had) {
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if (!chan[i].inPorta) {
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chan[i].baseFreq=NOTE_PERIODIC(parent->calcArp(chan[i].note,chan[i].std.arp.val));
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}
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chan[i].freqChanged=true;
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}
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if (chan[i].std.pitch.had) {
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if (chan[i].std.pitch.mode) {
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chan[i].pitch2+=chan[i].std.pitch.val;
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CLAMP_VAR(chan[i].pitch2,-32768,32767);
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} else {
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chan[i].pitch2=chan[i].std.pitch.val;
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}
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chan[i].freqChanged=true;
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}
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if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
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chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER)-1;
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if (chan[i].freq<0) chan[i].freq=0;
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if (chan[i].freq>65535) chan[i].freq=65535;
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if (!chan[i].std.vol.had) {
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if (chan[i].keyOn) {
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on=true;
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}
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}
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if (chan[i].keyOff) {
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on=false;
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}
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freq=chan[i].freq;
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if (chan[i].keyOn) chan[i].keyOn=false;
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if (chan[i].keyOff) chan[i].keyOff=false;
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chan[i].freqChanged=false;
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}
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}
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}
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int DivPlatformPCSpeaker::dispatch(DivCommand c) {
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switch (c.cmd) {
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case DIV_CMD_NOTE_ON:
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if (c.value!=DIV_NOTE_NULL) {
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chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
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chan[c.chan].freqChanged=true;
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chan[c.chan].note=c.value;
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}
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chan[c.chan].active=true;
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chan[c.chan].keyOn=true;
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chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_BEEPER));
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if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
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chan[c.chan].outVol=chan[c.chan].vol;
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}
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break;
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case DIV_CMD_NOTE_OFF:
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chan[c.chan].active=false;
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chan[c.chan].keyOff=true;
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chan[c.chan].macroInit(NULL);
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break;
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case DIV_CMD_NOTE_OFF_ENV:
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case DIV_CMD_ENV_RELEASE:
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chan[c.chan].std.release();
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break;
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case DIV_CMD_INSTRUMENT:
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if (chan[c.chan].ins!=c.value || c.value2==1) {
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chan[c.chan].ins=c.value;
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}
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break;
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case DIV_CMD_VOLUME:
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if (chan[c.chan].vol!=c.value) {
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chan[c.chan].vol=c.value;
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if (!chan[c.chan].std.vol.has) {
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chan[c.chan].outVol=c.value;
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}
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if (chan[c.chan].active) {
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on=chan[c.chan].vol;
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}
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}
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break;
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case DIV_CMD_GET_VOLUME:
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return chan[c.chan].vol;
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break;
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case DIV_CMD_PITCH:
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chan[c.chan].pitch=c.value;
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chan[c.chan].freqChanged=true;
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break;
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case DIV_CMD_NOTE_PORTA: {
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int destFreq=NOTE_PERIODIC(c.value2);
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bool return2=false;
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if (destFreq>chan[c.chan].baseFreq) {
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chan[c.chan].baseFreq+=c.value;
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if (chan[c.chan].baseFreq>=destFreq) {
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chan[c.chan].baseFreq=destFreq;
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return2=true;
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}
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} else {
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chan[c.chan].baseFreq-=c.value;
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if (chan[c.chan].baseFreq<=destFreq) {
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chan[c.chan].baseFreq=destFreq;
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return2=true;
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}
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}
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chan[c.chan].freqChanged=true;
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if (return2) {
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chan[c.chan].inPorta=false;
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return 2;
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}
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break;
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}
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case DIV_CMD_LEGATO:
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if (c.chan==3) break;
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chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val):(0)));
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chan[c.chan].freqChanged=true;
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chan[c.chan].note=c.value;
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break;
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case DIV_CMD_PRE_PORTA:
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if (chan[c.chan].active && c.value2) {
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if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_BEEPER));
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}
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if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) chan[c.chan].baseFreq=NOTE_PERIODIC(chan[c.chan].note);
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chan[c.chan].inPorta=c.value;
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break;
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case DIV_CMD_GET_VOLMAX:
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return 1;
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break;
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case DIV_CMD_MACRO_OFF:
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chan[c.chan].std.mask(c.value,true);
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break;
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case DIV_CMD_MACRO_ON:
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chan[c.chan].std.mask(c.value,false);
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break;
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case DIV_ALWAYS_SET_VOLUME:
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return 1;
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break;
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default:
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break;
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}
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return 1;
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}
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void DivPlatformPCSpeaker::muteChannel(int ch, bool mute) {
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isMuted[ch]=mute;
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}
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void DivPlatformPCSpeaker::forceIns() {
|
|
for (int i=0; i<1; i++) {
|
|
chan[i].insChanged=true;
|
|
}
|
|
}
|
|
|
|
void* DivPlatformPCSpeaker::getChanState(int ch) {
|
|
return &chan[ch];
|
|
}
|
|
|
|
DivMacroInt* DivPlatformPCSpeaker::getChanMacroInt(int ch) {
|
|
return &chan[ch].std;
|
|
}
|
|
|
|
DivDispatchOscBuffer* DivPlatformPCSpeaker::getOscBuffer(int ch) {
|
|
return oscBuf;
|
|
}
|
|
|
|
unsigned char* DivPlatformPCSpeaker::getRegisterPool() {
|
|
if (on) {
|
|
regPool[0]=freq;
|
|
regPool[1]=freq>>8;
|
|
} else {
|
|
regPool[0]=0;
|
|
regPool[1]=0;
|
|
}
|
|
return regPool;
|
|
}
|
|
|
|
int DivPlatformPCSpeaker::getRegisterPoolSize() {
|
|
return 2;
|
|
}
|
|
|
|
void DivPlatformPCSpeaker::reset() {
|
|
for (int i=0; i<1; i++) {
|
|
chan[i]=DivPlatformPCSpeaker::Channel();
|
|
chan[i].std.setEngine(parent);
|
|
}
|
|
if (dumpWrites) {
|
|
addWrite(0xffffffff,0);
|
|
}
|
|
|
|
on=false;
|
|
lastOn=false;
|
|
freq=0;
|
|
lastFreq=0;
|
|
pos=0;
|
|
flip=false;
|
|
low=0;
|
|
band=0;
|
|
|
|
//if (speakerType==3) {
|
|
#ifdef __linux__
|
|
if (beepFD==-1) {
|
|
switch (realOutMethod) {
|
|
case 0: // evdev
|
|
beepFD=open("/dev/input/by-path/platform-pcspkr-event-spkr",O_WRONLY);
|
|
break;
|
|
case 1: // KIOCSOUND (on tty)
|
|
beepFD=open("/dev/tty1",O_WRONLY);
|
|
break;
|
|
case 2: // /dev/port
|
|
beepFD=open("/dev/port",O_WRONLY);
|
|
break;
|
|
case 3: // KIOCSOUND (on stdout)
|
|
beepFD=STDOUT_FILENO;
|
|
break;
|
|
case 4: // outb()
|
|
beepFD=-1;
|
|
#ifdef HAVE_SYS_IO
|
|
if (ioperm(0x61,8,1)<0) {
|
|
logW("ioperm 0x61: %s",strerror(errno));
|
|
break;
|
|
}
|
|
if (ioperm(0x43,8,1)<0) {
|
|
logW("ioperm 0x43: %s",strerror(errno));
|
|
break;
|
|
}
|
|
if (ioperm(0x42,8,1)<0) {
|
|
logW("ioperm 0x42: %s",strerror(errno));
|
|
break;
|
|
}
|
|
beepFD=STDOUT_FILENO;
|
|
#else
|
|
errno=ENOSYS;
|
|
#endif
|
|
break;
|
|
}
|
|
if (beepFD<0) {
|
|
logW("error while opening PC speaker! %s",strerror(errno));
|
|
}
|
|
}
|
|
#endif
|
|
beepFreq(0);
|
|
/*} else {
|
|
beepFreq(0);
|
|
}*/
|
|
|
|
if (realOutThread==NULL) {
|
|
realOutThread=new std::thread(_pcSpeakerThread,this);
|
|
}
|
|
|
|
memset(regPool,0,2);
|
|
}
|
|
|
|
bool DivPlatformPCSpeaker::keyOffAffectsArp(int ch) {
|
|
return true;
|
|
}
|
|
|
|
void DivPlatformPCSpeaker::setFlags(const DivConfig& flags) {
|
|
switch (flags.getInt("clockSel",0)) {
|
|
case 1: // PC-98
|
|
chipClock=38400*52;
|
|
break;
|
|
case 2: // PC-98
|
|
chipClock=38400*64;
|
|
break;
|
|
default: // IBM PC
|
|
chipClock=COLOR_NTSC/3.0;
|
|
break;
|
|
}
|
|
CHECK_CUSTOM_CLOCK;
|
|
rate=chipClock/PCSPKR_DIVIDER;
|
|
speakerType=flags.getInt("speakerType",0)&3;
|
|
oscBuf->rate=rate;
|
|
}
|
|
|
|
void DivPlatformPCSpeaker::notifyInsDeletion(void* ins) {
|
|
for (int i=0; i<1; i++) {
|
|
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
|
|
}
|
|
}
|
|
|
|
void DivPlatformPCSpeaker::notifyPlaybackStop() {
|
|
beepFreq(0);
|
|
}
|
|
|
|
void DivPlatformPCSpeaker::poke(unsigned int addr, unsigned short val) {
|
|
// ???
|
|
}
|
|
|
|
void DivPlatformPCSpeaker::poke(std::vector<DivRegWrite>& wlist) {
|
|
// ???
|
|
}
|
|
|
|
int DivPlatformPCSpeaker::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
|
|
parent=p;
|
|
dumpWrites=false;
|
|
skipRegisterWrites=false;
|
|
beepFD=-1;
|
|
realOutQuit=false;
|
|
realOutThread=NULL;
|
|
realOutMethod=parent->getConfInt("pcSpeakerOutMethod",0);
|
|
realOutEnabled=false;
|
|
for (int i=0; i<1; i++) {
|
|
isMuted[i]=false;
|
|
}
|
|
oscBuf=new DivDispatchOscBuffer;
|
|
setFlags(flags);
|
|
|
|
reset();
|
|
return 5;
|
|
}
|
|
|
|
void DivPlatformPCSpeaker::quit() {
|
|
if (speakerType==3) {
|
|
beepFreq(0);
|
|
}
|
|
if (realOutThread!=NULL) {
|
|
realOutQuit=true;
|
|
realOutCond.notify_one();
|
|
realOutThread->join();
|
|
delete realOutThread;
|
|
}
|
|
#ifdef __linux__
|
|
if (beepFD>=0 && realOutMethod<3) close(beepFD);
|
|
#endif
|
|
delete oscBuf;
|
|
}
|
|
|
|
DivPlatformPCSpeaker::~DivPlatformPCSpeaker() {
|
|
}
|