25 lines
781 B
C++
25 lines
781 B
C++
|
#include "debugtonegenerator.h"
|
||
|
|
|
||
|
|
// system includes
|
||
|
|
#include <cmath>
|
||
|
|
#include <limits>
|
||
|
|
|
||
|
|
std::size_t DebugToneGenerator::fill(SamplePair *begin, SamplePair *end)
|
||
|
|
{
|
||
|
|
for (auto iter = begin; iter != end; iter++)
|
||
|
|
{
|
||
|
|
Q_ASSERT(iter <= end);
|
||
|
|
iter->first = std::sin(m_counter) * std::numeric_limits<SamplePair::Type>::max() / 2;
|
||
|
|
iter->second = std::sin((m_counter*8.f) + std::sin(m_offset)*10.) *(0.5 * (.7f + (std::sin(m_counter - M_PI/2) * .3f))) * std::numeric_limits<SamplePair::Type>::max() / 2;
|
||
|
|
|
||
|
|
m_counter+= 1. / samplerate() * (1000. + (std::sin(m_freq) * 500.));
|
||
|
|
m_offset+=0.00001f;
|
||
|
|
m_freq+=1. / samplerate() * 4;
|
||
|
|
}
|
||
|
|
|
||
|
|
while (m_counter >= M_PI * 2)
|
||
|
|
m_counter -= M_PI * 2;
|
||
|
|
|
||
|
|
return std::distance(begin, end);
|
||
|
|
}
|