mirror of https://git.rip/DMCA_FUCKER/re3.git
538 lines
9.8 KiB
C++
538 lines
9.8 KiB
C++
#include "stream.h"
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#ifdef AUDIO_OAL
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#include "common.h"
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#include "sampman.h"
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#include <sndfile.h>
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#include <mpg123.h>
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#ifdef _WIN32
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typedef long ssize_t;
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#pragma comment( lib, "libsndfile-1.lib" )
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#pragma comment( lib, "libmpg123.lib" )
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#else
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#include "crossplatform.h"
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#endif
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class CSndFile : public IDecoder
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{
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SNDFILE *m_pfSound;
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SF_INFO m_soundInfo;
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public:
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CSndFile(const char *path) :
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m_pfSound(nil)
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{
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memset(&m_soundInfo, 0, sizeof(m_soundInfo));
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m_pfSound = sf_open(path, SFM_READ, &m_soundInfo);
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}
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~CSndFile()
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{
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if ( m_pfSound )
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{
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sf_close(m_pfSound);
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m_pfSound = nil;
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}
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}
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bool IsOpened()
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{
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return m_pfSound != nil;
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}
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uint32 GetSampleSize()
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{
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return sizeof(uint16);
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}
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uint32 GetSampleCount()
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{
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return m_soundInfo.frames;
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}
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uint32 GetSampleRate()
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{
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return m_soundInfo.samplerate;
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}
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uint32 GetChannels()
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{
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return m_soundInfo.channels;
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}
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void Seek(uint32 milliseconds)
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{
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if ( !IsOpened() ) return;
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sf_seek(m_pfSound, ms2samples(milliseconds), SF_SEEK_SET);
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}
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uint32 Tell()
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{
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if ( !IsOpened() ) return 0;
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return samples2ms(sf_seek(m_pfSound, 0, SF_SEEK_CUR));
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}
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uint32 Decode(void *buffer)
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{
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if ( !IsOpened() ) return 0;
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return sf_read_short(m_pfSound, (short *)buffer, GetBufferSamples()) * GetSampleSize();
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}
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};
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class CMP3File : public IDecoder
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{
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mpg123_handle *m_pMH;
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bool m_bOpened;
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uint32 m_nRate;
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uint32 m_nChannels;
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public:
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CMP3File(const char *path) :
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m_pMH(nil),
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m_bOpened(false),
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m_nRate(0),
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m_nChannels(0)
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{
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m_pMH = mpg123_new(nil, nil);
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if ( m_pMH )
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{
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long rate = 0;
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int channels = 0;
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int encoding = 0;
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m_bOpened = mpg123_open(m_pMH, path) == MPG123_OK
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&& mpg123_getformat(m_pMH, &rate, &channels, &encoding) == MPG123_OK;
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m_nRate = rate;
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m_nChannels = channels;
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if ( IsOpened() )
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{
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mpg123_format_none(m_pMH);
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mpg123_format(m_pMH, rate, channels, encoding);
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}
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}
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}
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~CMP3File()
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{
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if ( m_pMH )
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{
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mpg123_close(m_pMH);
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mpg123_delete(m_pMH);
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m_pMH = nil;
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}
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}
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bool IsOpened()
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{
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return m_bOpened;
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}
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uint32 GetSampleSize()
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{
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return sizeof(uint16);
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}
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uint32 GetSampleCount()
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{
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if ( !IsOpened() ) return 0;
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return mpg123_length(m_pMH);
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}
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uint32 GetSampleRate()
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{
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return m_nRate;
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}
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uint32 GetChannels()
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{
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return m_nChannels;
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}
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void Seek(uint32 milliseconds)
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{
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if ( !IsOpened() ) return;
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mpg123_seek(m_pMH, ms2samples(milliseconds)*GetSampleSize(), SEEK_SET);
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}
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uint32 Tell()
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{
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if ( !IsOpened() ) return 0;
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return samples2ms(mpg123_tell(m_pMH)/GetSampleSize());
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}
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uint32 Decode(void *buffer)
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{
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if ( !IsOpened() ) return 0;
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size_t size;
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int err = mpg123_read(m_pMH, (unsigned char *)buffer, GetBufferSize(), &size);
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if (err != MPG123_OK && err != MPG123_DONE) return 0;
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return size;
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}
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};
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void CStream::Initialise()
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{
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mpg123_init();
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}
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void CStream::Terminate()
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{
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mpg123_exit();
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}
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CStream::CStream(char *filename, ALuint &source, ALuint (&buffers)[NUM_STREAMBUFFERS]) :
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m_alSource(source),
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m_alBuffers(buffers),
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m_pBuffer(nil),
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m_bPaused(false),
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m_bActive(false),
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m_pSoundFile(nil),
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m_bReset(false),
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m_nVolume(0),
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m_nPan(0),
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m_nPosBeforeReset(0)
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{
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// Be case-insensitive on linux (from https://github.com/OneSadCookie/fcaseopen/)
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#if !defined(_WIN32)
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FILE *test = fopen(filename, "r");
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if (!test) {
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char *r = (char*)alloca(strlen(filename) + 2);
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if (casepath(filename, r))
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{
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strcpy(m_aFilename, r);
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}
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} else {
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fclose(test);
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#else
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{
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#endif
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strcpy(m_aFilename, filename);
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}
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DEV("Stream %s\n", m_aFilename);
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if (!strcasecmp(&m_aFilename[strlen(m_aFilename) - strlen(".mp3")], ".mp3"))
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m_pSoundFile = new CMP3File(m_aFilename);
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else if (!strcasecmp(&m_aFilename[strlen(m_aFilename) - strlen(".wav")], ".wav"))
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m_pSoundFile = new CSndFile(m_aFilename);
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else
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m_pSoundFile = nil;
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ASSERT(m_pSoundFile != nil);
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if (m_pSoundFile && m_pSoundFile->IsOpened() )
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{
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m_pBuffer = malloc(m_pSoundFile->GetBufferSize());
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ASSERT(m_pBuffer!=nil);
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DEV("AvgSamplesPerSec: %d\n", m_pSoundFile->GetAvgSamplesPerSec());
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DEV("SampleCount: %d\n", m_pSoundFile->GetSampleCount());
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DEV("SampleRate: %d\n", m_pSoundFile->GetSampleRate());
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DEV("Channels: %d\n", m_pSoundFile->GetChannels());
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DEV("Buffer Samples: %d\n", m_pSoundFile->GetBufferSamples());
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DEV("Buffer sec: %f\n", (float(m_pSoundFile->GetBufferSamples()) / float(m_pSoundFile->GetChannels())/ float(m_pSoundFile->GetSampleRate())));
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DEV("Length MS: %02d:%02d\n", (m_pSoundFile->GetLength() / 1000) / 60, (m_pSoundFile->GetLength() / 1000) % 60);
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return;
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}
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}
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CStream::~CStream()
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{
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Delete();
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}
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void CStream::Delete()
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{
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Stop();
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ClearBuffers();
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if ( m_pSoundFile )
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{
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delete m_pSoundFile;
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m_pSoundFile = nil;
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}
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if ( m_pBuffer )
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{
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free(m_pBuffer);
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m_pBuffer = nil;
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}
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}
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bool CStream::HasSource()
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{
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return m_alSource != AL_NONE;
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}
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bool CStream::IsOpened()
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{
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return m_pSoundFile->IsOpened();
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}
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bool CStream::IsPlaying()
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{
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if ( !HasSource() || !IsOpened() ) return false;
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if ( m_pSoundFile->IsOpened() && !m_bPaused )
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{
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ALint sourceState;
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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if ( m_bActive || sourceState == AL_PLAYING )
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return true;
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}
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return false;
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}
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void CStream::Pause()
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{
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if ( !HasSource() ) return;
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ALint sourceState = AL_PAUSED;
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_PAUSED )
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alSourcePause(m_alSource);
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}
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void CStream::SetPause(bool bPause)
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{
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if ( !HasSource() ) return;
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if ( bPause )
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{
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Pause();
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m_bPaused = true;
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}
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else
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{
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if (m_bPaused)
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SetPlay(true);
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m_bPaused = false;
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}
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}
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void CStream::SetPitch(float pitch)
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{
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if ( !HasSource() ) return;
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alSourcef(m_alSource, AL_PITCH, pitch);
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}
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void CStream::SetGain(float gain)
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{
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if ( !HasSource() ) return;
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alSourcef(m_alSource, AL_GAIN, gain);
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}
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void CStream::SetPosition(float x, float y, float z)
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{
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if ( !HasSource() ) return;
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alSource3f(m_alSource, AL_POSITION, x, y, z);
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}
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void CStream::SetVolume(uint32 nVol)
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{
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m_nVolume = nVol;
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SetGain(ALfloat(nVol) / MAX_VOLUME);
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}
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void CStream::SetPan(uint8 nPan)
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{
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m_nPan = nPan;
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SetPosition((nPan - 63)/64.0f, 0.0f, Sqrt(1.0f-SQR((nPan-63)/64.0f)));
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}
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void CStream::SetPosMS(uint32 nPos)
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{
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if ( !m_pSoundFile->IsOpened() ) return;
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m_pSoundFile->Seek(nPos);
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ClearBuffers();
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}
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uint32 CStream::GetPosMS()
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{
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if ( !HasSource() ) return 0;
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if ( !m_pSoundFile->IsOpened() ) return 0;
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ALint offset;
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//alGetSourcei(m_alSource, AL_SAMPLE_OFFSET, &offset);
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alGetSourcei(m_alSource, AL_BYTE_OFFSET, &offset);
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return m_pSoundFile->Tell()
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- m_pSoundFile->samples2ms(m_pSoundFile->GetBufferSamples() * (NUM_STREAMBUFFERS-1))
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+ m_pSoundFile->samples2ms(offset/m_pSoundFile->GetSampleSize());
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}
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uint32 CStream::GetLengthMS()
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{
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if ( !m_pSoundFile->IsOpened() ) return 0;
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return m_pSoundFile->GetLength();
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}
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bool CStream::FillBuffer(ALuint alBuffer)
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{
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if ( !HasSource() )
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return false;
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if ( !m_pSoundFile->IsOpened() )
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return false;
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if ( !(alBuffer != AL_NONE && alIsBuffer(alBuffer)) )
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return false;
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uint32 size = m_pSoundFile->Decode(m_pBuffer);
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if( size == 0 )
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return false;
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alBufferData(alBuffer, m_pSoundFile->GetChannels() == 1 ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16,
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m_pBuffer, size, m_pSoundFile->GetSampleRate());
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return true;
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}
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int32 CStream::FillBuffers()
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{
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int32 i = 0;
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for ( i = 0; i < NUM_STREAMBUFFERS; i++ )
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{
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if ( !FillBuffer(m_alBuffers[i]) )
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break;
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alSourceQueueBuffers(m_alSource, 1, &m_alBuffers[i]);
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}
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return i;
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}
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void CStream::ClearBuffers()
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{
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if ( !HasSource() ) return;
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ALint buffersQueued;
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alGetSourcei(m_alSource, AL_BUFFERS_QUEUED, &buffersQueued);
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ALuint value;
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while (buffersQueued--)
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alSourceUnqueueBuffers(m_alSource, 1, &value);
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}
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bool CStream::Setup()
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{
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if ( m_pSoundFile->IsOpened() )
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{
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m_pSoundFile->Seek(0);
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alSourcei(m_alSource, AL_SOURCE_RELATIVE, AL_TRUE);
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//SetPosition(0.0f, 0.0f, 0.0f);
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SetPitch(1.0f);
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//SetPan(m_nPan);
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//SetVolume(100);
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}
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return IsOpened();
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}
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void CStream::SetPlay(bool state)
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{
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if ( !HasSource() ) return;
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if ( state )
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{
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ALint sourceState = AL_PLAYING;
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_PLAYING )
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alSourcePlay(m_alSource);
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m_bActive = true;
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}
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else
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{
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ALint sourceState = AL_STOPPED;
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_STOPPED )
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alSourceStop(m_alSource);
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m_bActive = false;
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}
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}
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void CStream::Start()
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{
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if ( !HasSource() ) return;
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if ( FillBuffers() != 0 )
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SetPlay(true);
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}
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void CStream::Stop()
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{
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if ( !HasSource() ) return;
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SetPlay(false);
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}
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void CStream::Update()
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{
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if ( !IsOpened() )
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return;
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if ( !HasSource() )
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return;
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if ( m_bReset )
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return;
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if ( !m_bPaused )
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{
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ALint sourceState;
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ALint buffersProcessed = 0;
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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alGetSourcei(m_alSource, AL_BUFFERS_PROCESSED, &buffersProcessed);
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ALint looping = AL_FALSE;
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alGetSourcei(m_alSource, AL_LOOPING, &looping);
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if ( looping == AL_TRUE )
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{
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TRACE("stream set looping");
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alSourcei(m_alSource, AL_LOOPING, AL_TRUE);
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}
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while( buffersProcessed-- )
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{
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ALuint buffer;
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alSourceUnqueueBuffers(m_alSource, 1, &buffer);
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if ( m_bActive && FillBuffer(buffer) )
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alSourceQueueBuffers(m_alSource, 1, &buffer);
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}
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if ( sourceState != AL_PLAYING )
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{
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alGetSourcei(m_alSource, AL_BUFFERS_PROCESSED, &buffersProcessed);
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SetPlay(buffersProcessed!=0);
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}
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}
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}
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void CStream::ProviderInit()
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{
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if ( m_bReset )
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{
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if ( Setup() )
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{
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SetPan(m_nPan);
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SetVolume(m_nVolume);
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SetPosMS(m_nPosBeforeReset);
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if (m_bActive)
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FillBuffers();
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SetPlay(m_bActive);
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if ( m_bPaused )
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Pause();
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}
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m_bReset = false;
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}
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}
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void CStream::ProviderTerm()
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{
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m_bReset = true;
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m_nPosBeforeReset = GetPosMS();
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ClearBuffers();
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}
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#endif
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