mirror of
https://github.com/ZDoom/qzdoom.git
synced 2024-12-11 13:11:07 +00:00
671 lines
16 KiB
C++
671 lines
16 KiB
C++
#include "i_musicinterns.h"
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#include "c_cvars.h"
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#include "cmdlib.h"
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#include "templates.h"
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#ifndef _WIN32
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <wordexp.h>
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#include <signal.h>
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int ChildQuit;
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void ChildSigHandler (int signum)
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{
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ChildQuit = waitpid (-1, NULL, WNOHANG);
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}
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#endif
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#ifdef _WIN32
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const char TimidityPPMIDIDevice::EventName[] = "TiMidity Killer";
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static char TimidityTitle[] = "TiMidity (ZDoom Launched)";
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CVAR (String, timidity_exe, "timidity.exe", CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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#else
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CVAR (String, timidity_exe, "timidity", CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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#endif
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CVAR (String, timidity_extargs, "", CVAR_ARCHIVE|CVAR_GLOBALCONFIG) // extra args to pass to Timidity
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CVAR (String, timidity_chorus, "0", CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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CVAR (String, timidity_reverb, "0", CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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CVAR (Bool, timidity_stereo, true, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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CVAR (Bool, timidity_8bit, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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CVAR (Bool, timidity_byteswap, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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// added because Timidity's output is rather loud.
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CUSTOM_CVAR (Float, timidity_mastervolume, 1.0f, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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{
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if (self < 0.f)
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self = 0.f;
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else if (self > 4.f)
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self = 4.f;
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if (currSong != NULL)
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currSong->TimidityVolumeChanged();
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}
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CUSTOM_CVAR (Int, timidity_pipe, 90, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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{ // pipe size in ms
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if (timidity_pipe < 0)
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{ // a negative size makes no sense
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timidity_pipe = 0;
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}
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}
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CUSTOM_CVAR (Int, timidity_frequency, 22050, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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{ // Clamp frequency to Timidity's limits
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if (self < 4000)
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self = 4000;
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else if (self > 65000)
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self = 65000;
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}
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//==========================================================================
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//
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// TimidityPPMIDIDevice Constructor
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//
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//==========================================================================
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TimidityPPMIDIDevice::TimidityPPMIDIDevice()
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: DiskName("zmid"),
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#ifdef _WIN32
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ReadWavePipe(INVALID_HANDLE_VALUE), WriteWavePipe(INVALID_HANDLE_VALUE),
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KillerEvent(INVALID_HANDLE_VALUE),
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ChildProcess(INVALID_HANDLE_VALUE),
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Validated(false)
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#else
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ChildProcess(-1)
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#endif
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{
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#ifndef _WIN32
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WavePipe[0] = WavePipe[1] = -1;
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#endif
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if (DiskName == NULL)
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{
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Printf(PRINT_BOLD, "Could not create temp music file\n");
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return;
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}
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}
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//==========================================================================
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//
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// TimidityPPMIDIDevice Destructor
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//
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//==========================================================================
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TimidityPPMIDIDevice::~TimidityPPMIDIDevice ()
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{
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#if _WIN32
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if (WriteWavePipe != INVALID_HANDLE_VALUE)
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{
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CloseHandle (WriteWavePipe);
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WriteWavePipe = INVALID_HANDLE_VALUE;
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}
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if (ReadWavePipe != INVALID_HANDLE_VALUE)
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{
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CloseHandle (ReadWavePipe);
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ReadWavePipe = INVALID_HANDLE_VALUE;
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}
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if (KillerEvent != INVALID_HANDLE_VALUE)
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{
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CloseHandle (KillerEvent);
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KillerEvent = INVALID_HANDLE_VALUE;
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}
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#else
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if (WavePipe[1] != -1)
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{
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close (WavePipe[1]);
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WavePipe[1] = -1;
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}
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if (WavePipe[0] != -1)
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{
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close (WavePipe[0]);
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WavePipe[0] = -1;
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}
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#endif
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}
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//==========================================================================
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//
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// TimidityPPMIDIDevice :: Preprocess
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//
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//==========================================================================
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bool TimidityPPMIDIDevice::Preprocess(MIDIStreamer *song, bool looping)
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{
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TArray<BYTE> midi;
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bool success;
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FILE *f;
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if (CommandLine.IsEmpty())
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{
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return false;
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}
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// Tell TiMidity++ whether it should loop or not
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CommandLine.LockBuffer()[LoopPos] = looping ? 'l' : ' ';
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CommandLine.UnlockBuffer();
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// Write MIDI song to temporary file
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song->CreateSMF(midi);
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f = fopen(DiskName, "wb");
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if (f == NULL)
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{
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Printf(PRINT_BOLD, "Could not open temp music file\n");
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return false;
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}
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success = (fwrite(&midi[0], 1, midi.Size(), f) == (size_t)midi.Size());
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fclose (f);
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if (!success)
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{
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Printf(PRINT_BOLD, "Could not write temp music file\n");
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}
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return false;
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}
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//==========================================================================
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//
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// TimidityPPMIDIDevice :: Open
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//
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//==========================================================================
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int TimidityPPMIDIDevice::Open(void (*callback)(unsigned int, void *, DWORD, DWORD), void *userdata)
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{
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int pipeSize;
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#ifdef _WIN32
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static SECURITY_ATTRIBUTES inheritable = { sizeof(inheritable), NULL, TRUE };
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if (!Validated && !ValidateTimidity ())
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{
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return 101;
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}
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Validated = true;
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KillerEvent = CreateEvent(NULL, FALSE, FALSE, EventName);
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if (KillerEvent == INVALID_HANDLE_VALUE)
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{
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Printf(PRINT_BOLD, "Could not create TiMidity++ kill event.\n");
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return 102;
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}
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#endif // WIN32
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CommandLine.Format("%s %s -EFchorus=%s -EFreverb=%s -s%d ",
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*timidity_exe, *timidity_extargs,
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*timidity_chorus, *timidity_reverb, *timidity_frequency);
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pipeSize = (timidity_pipe * timidity_frequency / 1000)
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<< (timidity_stereo + !timidity_8bit);
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{
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#ifdef _WIN32
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// Round pipe size up to nearest power of 2 to try and avoid partial
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// buffer reads in FillStream() under NT. This does not seem to be an
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// issue under 9x.
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int bitmask = pipeSize & -pipeSize;
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while (bitmask < pipeSize)
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bitmask <<= 1;
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pipeSize = bitmask;
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if (!CreatePipe(&ReadWavePipe, &WriteWavePipe, &inheritable, pipeSize))
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#else // WIN32
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if (pipe (WavePipe) == -1)
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#endif
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{
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Printf(PRINT_BOLD, "Could not create a data pipe for TiMidity++.\n");
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pipeSize = 0;
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}
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else
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{
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Stream = GSnd->CreateStream(FillStream, pipeSize,
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(timidity_stereo ? 0 : SoundStream::Mono) |
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(timidity_8bit ? SoundStream::Bits8 : 0),
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timidity_frequency, this);
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if (Stream == NULL)
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{
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Printf(PRINT_BOLD, "Could not create music stream.\n");
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pipeSize = 0;
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#ifdef _WIN32
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CloseHandle(WriteWavePipe);
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CloseHandle(ReadWavePipe);
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ReadWavePipe = WriteWavePipe = INVALID_HANDLE_VALUE;
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#else
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close(WavePipe[1]);
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close(WavePipe[0]);
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WavePipe[0] = WavePipe[1] = -1;
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#endif
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}
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}
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if (pipeSize == 0)
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{
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Printf(PRINT_BOLD, "If your soundcard cannot play more than one\n"
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"wave at a time, you will hear no music.\n");
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}
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else
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{
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CommandLine += "-o - -Ors";
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}
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}
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if (pipeSize == 0)
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{
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CommandLine += "-Od";
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}
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CommandLine += timidity_stereo ? 'S' : 'M';
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CommandLine += timidity_8bit ? '8' : '1';
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if (timidity_byteswap)
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{
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CommandLine += 'x';
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}
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LoopPos = CommandLine.Len() + 4;
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CommandLine += " -idl ";
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CommandLine += DiskName.GetName();
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return 0;
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}
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//==========================================================================
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//
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// TimidityPPMIDIDevice :: ValidateTimidity
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//
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// Check that this TiMidity++ knows about the TiMidity Killer event.
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// If not, then we can't use it, because Win32 provides no other way
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// to conveniently signal it to quit. The check is done by simply
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// searching for the event's name somewhere in the executable.
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//
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//==========================================================================
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#ifdef _WIN32
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bool TimidityPPMIDIDevice::ValidateTimidity()
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{
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char foundPath[MAX_PATH];
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char *filePart;
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DWORD pathLen;
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DWORD fileLen;
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HANDLE diskFile;
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HANDLE mapping;
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const BYTE *exeBase;
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const BYTE *exeEnd;
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const BYTE *exe;
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bool good;
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pathLen = SearchPath (NULL, timidity_exe, NULL, MAX_PATH, foundPath, &filePart);
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if (pathLen == 0)
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{
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Printf(PRINT_BOLD, "Please set the timidity_exe cvar to the location of TiMidity++\n");
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return false;
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}
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if (pathLen > MAX_PATH)
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{
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Printf(PRINT_BOLD, "The path to TiMidity++ is too long\n");
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return false;
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}
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diskFile = CreateFile (foundPath, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);
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if (diskFile == INVALID_HANDLE_VALUE)
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{
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Printf(PRINT_BOLD, "Could not access %s\n", foundPath);
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return false;
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}
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fileLen = GetFileSize (diskFile, NULL);
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mapping = CreateFileMapping (diskFile, NULL, PAGE_READONLY, 0, 0, NULL);
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if (mapping == NULL)
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{
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Printf(PRINT_BOLD, "Could not create mapping for %s\n", foundPath);
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CloseHandle (diskFile);
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return false;
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}
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exeBase = (const BYTE *)MapViewOfFile (mapping, FILE_MAP_READ, 0, 0, 0);
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if (exeBase == NULL)
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{
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Printf(PRINT_BOLD, "Could not map %s\n", foundPath);
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CloseHandle (mapping);
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CloseHandle (diskFile);
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return false;
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}
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good = false;
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try
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{
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for (exe = exeBase, exeEnd = exeBase+fileLen; exe < exeEnd; )
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{
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const char *tSpot = (const char *)memchr(exe, 'T', exeEnd - exe);
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if (tSpot == NULL)
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{
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break;
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}
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if (memcmp(tSpot+1, EventName+1, sizeof(EventName)-1) == 0)
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{
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good = true;
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break;
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}
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exe = (const BYTE *)tSpot + 1;
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}
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}
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catch (...)
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{
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Printf(PRINT_BOLD, "Error reading %s\n", foundPath);
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}
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if (!good)
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{
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Printf(PRINT_BOLD, "ZDoom requires a special version of TiMidity++\n");
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}
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UnmapViewOfFile((LPVOID)exeBase);
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CloseHandle(mapping);
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CloseHandle(diskFile);
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return good;
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}
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#endif // _WIN32
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//==========================================================================
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//
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// TimidityPPMIDIDevice :: LaunchTimidity
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//
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//==========================================================================
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bool TimidityPPMIDIDevice::LaunchTimidity ()
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{
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if (CommandLine.IsEmpty())
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{
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return false;
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}
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DPrintf ("cmd: \x1cG%s\n", CommandLine.GetChars());
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#ifdef _WIN32
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STARTUPINFO startup = { sizeof(startup), };
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PROCESS_INFORMATION procInfo;
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startup.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
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startup.hStdInput = INVALID_HANDLE_VALUE;
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startup.hStdOutput = WriteWavePipe != INVALID_HANDLE_VALUE ?
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WriteWavePipe : GetStdHandle (STD_OUTPUT_HANDLE);
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startup.hStdError = GetStdHandle (STD_ERROR_HANDLE);
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startup.lpTitle = TimidityTitle;
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startup.wShowWindow = SW_SHOWMINNOACTIVE;
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if (CreateProcess(NULL, CommandLine.LockBuffer(), NULL, NULL, TRUE,
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/*HIGH_PRIORITY_CLASS|*/DETACHED_PROCESS, NULL, NULL, &startup, &procInfo))
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{
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ChildProcess = procInfo.hProcess;
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//SetThreadPriority (procInfo.hThread, THREAD_PRIORITY_HIGHEST);
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CloseHandle (procInfo.hThread); // Don't care about the created thread
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CommandLine.UnlockBuffer();
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return true;
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}
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CommandLine.UnlockBuffer();
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char hres[9];
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LPTSTR msgBuf;
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HRESULT err = GetLastError();
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if (!FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL, err, 0, (LPTSTR)&msgBuf, 0, NULL))
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{
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mysnprintf(hres, countof(hres), "%08lx", err);
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msgBuf = hres;
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}
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Printf(PRINT_BOLD, "Could not run timidity with the command line:\n%s\n"
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"Reason: %s\n", CommandLine.GetChars(), msgBuf);
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if (msgBuf != hres)
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{
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LocalFree (msgBuf);
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}
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return false;
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#else
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if (WavePipe[0] != -1 && WavePipe[1] == -1 && Stream != NULL)
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{
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// Timidity was previously launched, so the write end of the pipe
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// is closed, and the read end is still open. Close the pipe
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// completely and reopen it.
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close (WavePipe[0]);
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WavePipe[0] = -1;
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delete Stream;
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Stream = NULL;
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Open (NULL, NULL);
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}
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int forkres;
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wordexp_t words;
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switch (wordexp (CommandLine.GetChars(), &words, 0))
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{
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case 0: // all good
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break;
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case WRDE_NOSPACE:
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wordfree (&words);
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default:
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return false;
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}
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forkres = fork ();
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if (forkres == 0)
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{
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close (WavePipe[0]);
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dup2 (WavePipe[1], STDOUT_FILENO);
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freopen ("/dev/null", "r", stdin);
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// freopen ("/dev/null", "w", stderr);
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close (WavePipe[1]);
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execvp (words.we_wordv[0], words.we_wordv);
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fprintf(stderr,"execvp failed\n");
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exit (0); // if execvp succeeds, we never get here
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}
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else if (forkres < 0)
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{
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Printf (PRINT_BOLD, "Could not fork when trying to start timidity\n");
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}
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else
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{
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// printf ("child is %d\n", forkres);
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ChildProcess = forkres;
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close (WavePipe[1]);
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WavePipe[1] = -1;
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/* usleep(1000000);
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if (waitpid(ChildProcess, NULL, WNOHANG) == ChildProcess)
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{
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fprintf(stderr,"Launching timidity failed\n");
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}*/
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}
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wordfree (&words);
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return ChildProcess != -1;
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#endif // _WIN32
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}
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//==========================================================================
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//
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// TimidityPPMIDIDevice :: FillStream
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//
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//==========================================================================
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bool TimidityPPMIDIDevice::FillStream(SoundStream *stream, void *buff, int len, void *userdata)
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{
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TimidityPPMIDIDevice *song = (TimidityPPMIDIDevice *)userdata;
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#ifdef _WIN32
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DWORD avail, got, didget;
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if (!PeekNamedPipe(song->ReadWavePipe, NULL, 0, NULL, &avail, NULL) || avail == 0)
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{ // If nothing is available from the pipe, play silence.
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memset (buff, 0, len);
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}
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else
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{
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didget = 0;
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for (;;)
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{
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ReadFile(song->ReadWavePipe, (BYTE *)buff+didget, len-didget, &got, NULL);
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didget += got;
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if (didget >= (DWORD)len)
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break;
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// Give TiMidity++ a chance to output something more to the pipe
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Sleep (10);
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if (!PeekNamedPipe(song->ReadWavePipe, NULL, 0, NULL, &avail, NULL) || avail == 0)
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{
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memset ((BYTE *)buff+didget, 0, len-didget);
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break;
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}
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}
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}
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#else
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ssize_t got;
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fd_set rfds;
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struct timeval tv;
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if (ChildQuit == song->ChildProcess)
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{
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ChildQuit = 0;
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fprintf(stderr, "child gone\n");
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song->ChildProcess = -1;
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return false;
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}
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FD_ZERO(&rfds);
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FD_SET(song->WavePipe[0], &rfds);
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tv.tv_sec = 0;
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tv.tv_usec = 50;
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// fprintf(stderr,"select\n");
|
|
if (select(1, &rfds, NULL, NULL, &tv) <= 0 && 0)
|
|
{ // Nothing available, so play silence.
|
|
// fprintf(stderr,"nothing\n");
|
|
// memset(buff, 0, len);
|
|
return true;
|
|
}
|
|
// fprintf(stderr,"something\n");
|
|
|
|
got = read(song->WavePipe[0], (BYTE *)buff, len);
|
|
if (got < len)
|
|
{
|
|
memset((BYTE *)buff+got, 0, len-got);
|
|
}
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// TimidityPPMIDIDevice :: TimidityVolumeChanged
|
|
//
|
|
//==========================================================================
|
|
|
|
void TimidityPPMIDIDevice::TimidityVolumeChanged()
|
|
{
|
|
if (Stream != NULL)
|
|
{
|
|
Stream->SetVolume(timidity_mastervolume);
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// TimidityPPMIDIDevice :: IsOpen
|
|
//
|
|
//==========================================================================
|
|
|
|
bool TimidityPPMIDIDevice::IsOpen() const
|
|
{
|
|
#ifdef _WIN32
|
|
if (ChildProcess != INVALID_HANDLE_VALUE)
|
|
{
|
|
if (WaitForSingleObject(ChildProcess, 0) != WAIT_TIMEOUT)
|
|
{ // Timidity++ has quit
|
|
CloseHandle(ChildProcess);
|
|
const_cast<TimidityPPMIDIDevice *>(this)->ChildProcess = INVALID_HANDLE_VALUE;
|
|
#else
|
|
if (ChildProcess != -1)
|
|
{
|
|
if (waitpid (ChildProcess, NULL, WNOHANG) == ChildProcess)
|
|
{
|
|
const_cast<TimidityPPMIDIDevice *>(this)->ChildProcess = -1;
|
|
#endif
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// TimidityPPMIDIDevice :: Resume
|
|
//
|
|
//==========================================================================
|
|
|
|
int TimidityPPMIDIDevice::Resume()
|
|
{
|
|
if (!Started)
|
|
{
|
|
if (LaunchTimidity())
|
|
{
|
|
// Assume success if not mixing with FMOD
|
|
if (Stream == NULL || Stream->Play(true, timidity_mastervolume))
|
|
{
|
|
Started = true;
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// TimidityPPMIDIDevice :: Stop
|
|
//
|
|
//==========================================================================
|
|
|
|
void TimidityPPMIDIDevice::Stop ()
|
|
{
|
|
if (Started)
|
|
{
|
|
if (Stream != NULL)
|
|
{
|
|
Stream->Stop();
|
|
}
|
|
#ifdef _WIN32
|
|
if (ChildProcess != INVALID_HANDLE_VALUE)
|
|
{
|
|
SetEvent(KillerEvent);
|
|
if (WaitForSingleObject(ChildProcess, 500) != WAIT_OBJECT_0)
|
|
{
|
|
TerminateProcess(ChildProcess, 666);
|
|
}
|
|
CloseHandle(ChildProcess);
|
|
ChildProcess = INVALID_HANDLE_VALUE;
|
|
}
|
|
#else
|
|
if (ChildProcess != -1)
|
|
{
|
|
if (kill(ChildProcess, SIGTERM) != 0)
|
|
{
|
|
kill(ChildProcess, SIGKILL);
|
|
}
|
|
waitpid(ChildProcess, NULL, 0);
|
|
ChildProcess = -1;
|
|
}
|
|
#endif
|
|
}
|
|
Started = false;
|
|
}
|