#include "tsound.h"

#include "tsound_t.h"

#include "tconvert.h"

#define TRK_M8 9

#define TRK_S8 10

#define TRK_M16 17

#define TRK_S16 18

#define TRK_M24 25

#define TRK_S24 26

//==============================================================================

DEFINE_CLASS_CODE(TSoundTrack, 12)

//------------------------------------------------------------------------------

TSoundTrack::TSoundTrack()

	: TSmartObject(m_classCode), m_parent(0), m_buffer(0), m_bufferOwner(false)

{

}

//------------------------------------------------------------------------------

TSoundTrack::TSoundTrack(TUINT32 sampleRate,

						 int bitPerSample,

						 int channelCount,

						 int sampleSize,

						 TINT32 sampleCount,

						 bool isSampleSigned)

	: TSmartObject(m_classCode), m_sampleRate(sampleRate), m_sampleSize(sampleSize), m_bitPerSample(bitPerSample), m_sampleCount(sampleCount), m_channelCount(channelCount), m_parent(0), m_bufferOwner(true)

{

	m_buffer = (UCHAR *)malloc(sampleCount * m_sampleSize);

	if (!m_buffer)

		return;

	//m_buffer = new UCHAR[sampleCount*m_sampleSize];

	if (isSampleSigned)

		memset(m_buffer, 0, sampleCount * sampleSize);

	else

		memset(m_buffer, 127, sampleCount * sampleSize);

}

//------------------------------------------------------------------------------

TSoundTrack::TSoundTrack(TUINT32 sampleRate,

						 int bitPerSample,

						 int channelCount,

						 int sampleSize,

						 TINT32 sampleCount,

						 UCHAR *buffer,

						 TSoundTrack *parent)

	: TSmartObject(m_classCode), m_sampleRate(sampleRate), m_sampleSize(sampleSize), m_bitPerSample(bitPerSample), m_sampleCount(sampleCount), m_channelCount(channelCount), m_parent(parent), m_buffer(buffer), m_bufferOwner(false)

{

	if (m_parent)

		m_parent->addRef();

}

//------------------------------------------------------------------------------

TSoundTrack::~TSoundTrack()

{

	if (m_parent)

		m_parent->release();

	//if (m_buffer && m_bufferOwner) delete [] m_buffer;

	if (m_buffer && m_bufferOwner)

		free(m_buffer);

}

//------------------------------------------------------------------------------

TSoundTrackP TSoundTrack::create(

	TUINT32 sampleRate, int bitPerSample,

	int channelCount, TINT32 sampleCount,

	bool signedSample)

{

	TSoundTrackP st;

	int type = bitPerSample + channelCount;

	switch (type) {

	case TRK_M8:

		if (signedSample)

			st = new TSoundTrackMono8Signed(

				sampleRate, channelCount, sampleCount);

		else

			st = new TSoundTrackMono8Unsigned(

				sampleRate, channelCount, sampleCount);

		break;

	case TRK_S8:

		if (signedSample)

			st = new TSoundTrackStereo8Signed(

				sampleRate, channelCount, sampleCount);

		else

			st = new TSoundTrackStereo8Unsigned(

				sampleRate, channelCount, sampleCount);

		break;

	case TRK_M16:

		st = new TSoundTrackMono16(

			sampleRate, channelCount, sampleCount);

		break;

	case TRK_S16:

		st = new TSoundTrackStereo16(

			sampleRate, channelCount, sampleCount);

		break;

	case TRK_M24:

		st = new TSoundTrackMono24(

			sampleRate, channelCount, sampleCount);

		break;

	case TRK_S24:

		st = new TSoundTrackStereo24(

			sampleRate, channelCount, sampleCount);

		break;

	default:

		string s;

		s = "Type " + toString((int)sampleRate) + " Hz " + toString(bitPerSample) + " bits ";

		if (channelCount == 1)

			s += "mono: ";

		else

			s += "stereo: ";

		s += "Unsupported\n";

		throw TException(s);

	}

	if (!st->getRawData()) {

		return 0;

	}

	return st;

}

//------------------------------------------------------------------------------

TSoundTrackP TSoundTrack::create(

	TUINT32 sampleRate, int bitPerSample,

	int channelCount, TINT32 sampleCount, void *buffer,

	bool signedSample)

{

	TSoundTrackP st;

	int type = bitPerSample + channelCount;

	switch (type) {

	case TRK_M8:

		if (signedSample)

			st = new TSoundTrackMono8Signed(

				sampleRate, channelCount, sampleCount, (TMono8SignedSample *)buffer, 0);

		else

			st = new TSoundTrackMono8Unsigned(

				sampleRate, channelCount, sampleCount, (TMono8UnsignedSample *)buffer, 0);

		break;

	case TRK_S8:

		if (signedSample)

			st = new TSoundTrackStereo8Signed(

				sampleRate, channelCount, sampleCount, (TStereo8SignedSample *)buffer, 0);

		else

			st = new TSoundTrackStereo8Unsigned(

				sampleRate, channelCount, sampleCount, (TStereo8UnsignedSample *)buffer, 0);

		break;

	case TRK_M16:

		st = new TSoundTrackMono16(

			sampleRate, channelCount, sampleCount, (TMono16Sample *)buffer, 0);

		break;

	case TRK_S16:

		st = new TSoundTrackStereo16(

			sampleRate, channelCount, sampleCount, (TStereo16Sample *)buffer, 0);

		break;

	case TRK_M24:

		st = new TSoundTrackMono24(

			sampleRate, channelCount, sampleCount, (TMono24Sample *)buffer, 0);

		break;

	case TRK_S24:

		st = new TSoundTrackStereo24(

			sampleRate, channelCount, sampleCount, (TStereo24Sample *)buffer, 0);

		break;

	default:

		string s;

		s = "Type " + toString((int)sampleRate) + " Hz " + toString(bitPerSample) + " bits ";

		if (channelCount == 1)

			s += "mono: ";

		else

			s += "stereo: ";

		s += "Unsupported\n";

		throw TException(s);

	}

	return st;

}

//------------------------------------------------------------------------------

TSoundTrackP TSoundTrack::create(const TSoundTrackFormat &format, TINT32 sampleCount, void *buffer)

{

	return TSoundTrack::create(

		(int)format.m_sampleRate,

		format.m_bitPerSample,

		format.m_channelCount,

		sampleCount,

		buffer,

		format.m_signedSample);

}

//------------------------------------------------------------------------------

TSoundTrackP TSoundTrack::create(const TSoundTrackFormat &format, TINT32 sampleCount)

{

	return TSoundTrack::create(

		(int)format.m_sampleRate,

		format.m_bitPerSample,

		format.m_channelCount,

		sampleCount,

		format.m_signedSample);

}

//------------------------------------------------------------------------------

TINT32 TSoundTrack::secondsToSamples(double s) const

{

	double dsamp = s * m_sampleRate;

	TINT32 lsamp = (TINT32)dsamp;

	if ((double)lsamp < dsamp - TConsts::epsilon)

		lsamp++;

	return lsamp;

}

//------------------------------------------------------------------------------

double TSoundTrack::samplesToSeconds(TINT32 f) const

{

	return f / (double)m_sampleRate;

}

//==============================================================================

bool TSoundTrackFormat::operator==(const TSoundTrackFormat &rhs)

{

	return (m_sampleRate == rhs.m_sampleRate &&

			m_bitPerSample == rhs.m_bitPerSample &&

			m_channelCount == rhs.m_channelCount &&

			m_signedSample == rhs.m_signedSample);

}

//------------------------------------------------------------------------------

bool TSoundTrackFormat::operator!=(const TSoundTrackFormat &rhs)

{

	return !operator==(rhs);

}

//==============================================================================

double TSoundTrack::getDuration() const

{

	return samplesToSeconds(m_sampleCount);

}

//------------------------------------------------------------------------------

TSoundTrackFormat TSoundTrack::getFormat() const

{

	return TSoundTrackFormat(

		getSampleRate(),

		getBitPerSample(),

		getChannelCount(),

		isSampleSigned());

}

//------------------------------------------------------------------------------

TSoundTrackP TSoundTrack::extract(double t0, double t1)

{

	return extract(secondsToSamples(t0), secondsToSamples(t1));

}

//------------------------------------------------------------------------------

void TSoundTrack::copy(const TSoundTrackP &src, double dst_t0)

{

	copy(src, secondsToSamples(dst_t0));

}

//------------------------------------------------------------------------------

void TSoundTrack::blank(double t0, double t1)

{

	blank(secondsToSamples(t0), secondsToSamples(t1));

}

//------------------------------------------------------------------------------

double TSoundTrack::getPressure(double second, TSound::Channel chan) const

{

	return getPressure(secondsToSamples(second), chan);

}

//------------------------------------------------------------------------------

void TSoundTrack::getMinMaxPressure(

	double t0, double t1, TSound::Channel chan,

	double &min, double &max) const

{

	getMinMaxPressure(secondsToSamples(t0), secondsToSamples(t1), chan, min, max);

}

//------------------------------------------------------------------------------

void TSoundTrack::getMinMaxPressure(TSound::Channel chan, double &min, double &max) const

{

	getMinMaxPressure(0, (TINT32)(getSampleCount() - 1), chan, min, max);

}

//------------------------------------------------------------------------------

double TSoundTrack::getMaxPressure(double t0, double t1, TSound::Channel chan) const

{

	return getMaxPressure(secondsToSamples(t0), secondsToSamples(t1), chan);

}

//------------------------------------------------------------------------------

double TSoundTrack::getMaxPressure(TSound::Channel chan) const

{

	return getMaxPressure(0, (TINT32)(getSampleCount() - 1), chan);

}

//------------------------------------------------------------------------------

double TSoundTrack::getMinPressure(double t0, double t1, TSound::Channel chan) const

{

	return getMinPressure(secondsToSamples(t0), secondsToSamples(t1), chan);

}

//------------------------------------------------------------------------------

double TSoundTrack::getMinPressure(TSound::Channel chan) const

{

	return getMinPressure(0, (TINT32)(getSampleCount() - 1), chan);

}

//------------------------------------------------------------------------------