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/*
* Modification History
*
* 2004-August-9 Jason Rohrer
* Created.
*/
#include "ParameterizedStereoSound.h"
#include "StereoSoundParameterSpaceControlPoint.h"
#include "SoundParameterSpaceControlPoint.h"
#include "OnePointPlayableSound.h"
ParameterizedStereoSound::ParameterizedStereoSound( FILE *inFILE,
char *outError ) {
char readError = false;
// read the sound length
int numRead = fscanf( inFILE, "%lf", &mSoundLengthInSeconds );
if( numRead != 1 ) {
readError = true;
printf( "Error: failed to read sound length from sound space.\n" );
}
SimpleVector<ParameterSpaceControlPoint *> *controlPoints =
new SimpleVector<ParameterSpaceControlPoint*>();
SimpleVector<double> *controlPointParameterAnchors =
new SimpleVector<double>();
// keep reading parameter anchors and control points until we
// can read no more
while( !readError ) {
// read the parameter space anchor
double anchor = 0;
numRead = fscanf( inFILE, "%lf", &anchor );
if( numRead != 1 ) {
readError = true;
}
else {
// read the control point
StereoSoundParameterSpaceControlPoint *point =
new StereoSoundParameterSpaceControlPoint( inFILE,
&readError );
if( !readError ) {
controlPointParameterAnchors->push_back( anchor );
controlPoints->push_back( point );
}
else {
delete point;
}
}
}
mNumControlPoints = controlPoints->size();
mControlPoints = controlPoints->getElementArray();
mControlPointParameterAnchors =
controlPointParameterAnchors->getElementArray();
delete controlPoints;
delete controlPointParameterAnchors;
if( mNumControlPoints >= 2 ) {
*outError = false;
}
else {
// we didn't read enough control points
*outError = true;
}
}
PlayableSound *ParameterizedStereoSound::getPlayableSound(
double inParameter,
unsigned long inSamplesPerSecond ) {
// blend the two points, using the distance to weight them
StereoSoundParameterSpaceControlPoint *blendedPoint =
getBlendedControlPoint( inParameter );
if( blendedPoint != NULL ) {
return new OnePointPlayableSound( blendedPoint,
mSoundLengthInSeconds,
inSamplesPerSecond );
}
else {
printf( "Error: no control points in sound space.\n" );
return NULL;
}
}
StereoSoundParameterSpaceControlPoint *ParameterizedStereoSound::
getBlendedControlPoint(
double inParameter ) {
// cast result of super-class function call and return it
return (StereoSoundParameterSpaceControlPoint*)
ParameterizedSpace::getBlendedControlPoint( inParameter );
}
double ParameterizedStereoSound::getSoundLengthInSeconds() {
return mSoundLengthInSeconds;
}
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