TEST( WaveTable, Clone )
{
int length = randomInt( 2, 256 );
float frequency = randomFloat( 20, 880 );
WaveTable* table = new WaveTable( length, frequency );
table->setAccumulator( randomSample( 0.0, ( SAMPLE_TYPE ) length ));
// randomly create content
if ( randomBool() )
{
for ( int i = 0; i < length; ++i )
table->getBuffer()[ i ] = randomSample( -1.0, 1.0 );
}
// create clone and validate its properties against the source table
WaveTable* clone = table->clone();
EXPECT_EQ( table->tableLength, clone->tableLength )
<< "expected cloned WaveTables length to equal the source WaveTables";
EXPECT_EQ( table->getFrequency(), clone->getFrequency() )
<< "expected cloned WaveTable frequency to equal the source WaveTables";
EXPECT_EQ( table->getAccumulator(), clone->getAccumulator() )
<< "expected cloned WaveTable accumulator to equal the source WaveTables";
EXPECT_EQ( table->hasContent(), table->hasContent() )
<< "expected cloned WaveTable hasContent value to equal the source WaveTables";
if ( table->hasContent() )
{
for ( int i = 0; i < length; ++i ) {
EXPECT_EQ( table->getBuffer()[ i ], clone->getBuffer()[ i ])
<< "expected cloned WaveTable buffer to have equal buffer contents, but it didn't";
}
}
delete table;
delete clone;
}
TEST( WaveTable, HasContent )
{
int length = randomInt( 2, 256 );
float frequency = randomFloat( 20, 880 );
WaveTable* table = new WaveTable( length, frequency );
ASSERT_FALSE( table->hasContent() )
<< "expected WaveTable to have no content upon construction";
SAMPLE_TYPE* buffer = table->getBuffer();
for ( int i = 0; i < length; ++i )
buffer[ i ] = randomSample( -1.0, 1.0 );
ASSERT_TRUE( table->hasContent() )
<< "expected WaveTable to report to have content after assignment of sample values in buffer";
delete table;
}
void JavaUtilities::cacheTable( jint tableLength, jint waveformType, jdoubleArray aBuffer )
{
WaveTable* table = new WaveTable( tableLength, waveformType );
SAMPLE_TYPE* buffer = table->getBuffer();
// get a pointer to the Java array
jdouble* c_array;
c_array = JavaBridge::getEnvironment()->GetDoubleArrayElements( aBuffer, 0 );
// exception checking
if ( c_array == NULL )
return;
// copy buffer contents
for ( int i = 0; i < tableLength; i++ )
buffer[ i ] = ( SAMPLE_TYPE ) c_array[ i ];
// release the memory so Java can have it again
JavaBridge::getEnvironment()->ReleaseDoubleArrayElements( aBuffer, c_array, 0 );
// store the table inside the pool
TablePool::setTable( table, waveformType );
}
