view data/fft/FFTMemoryCache.cpp @ 795:dc20458f6f85 qt5

Don't need to check for Dataquay, and in fact we can pick up the wrong version if we do. Just assume it is available (building in e.g. sv subdir configuration)

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#include "FFTMemoryCache.h"
#include "system/System.h"

#include <iostream>
#include <cstdlib>

//#define DEBUG_FFT_MEMORY_CACHE 1

FFTMemoryCache::FFTMemoryCache(FFTCache::StorageType storageType,
                               size_t width, size_t height) :
    m_width(width),
    m_height(height),
    m_magnitude(0),
    m_phase(0),
    m_fmagnitude(0),
    m_fphase(0),
    m_freal(0),
    m_fimag(0),
    m_factor(0),
    m_storageType(storageType)
{
#ifdef DEBUG_FFT_MEMORY_CACHE
    std::cerr << "FFTMemoryCache[" << this << "]::FFTMemoryCache (type "
              << m_storageType << "), size " << m_width << "x" << m_height << std::endl;
#endif

    initialise();
}

FFTMemoryCache::~FFTMemoryCache()
{
#ifdef DEBUG_FFT_MEMORY_CACHE
    std::cerr << "FFTMemoryCache[" << this << "]::~FFTMemoryCache" << std::endl;
#endif

    for (size_t i = 0; i < m_width; ++i) {
	if (m_magnitude && m_magnitude[i]) free(m_magnitude[i]);
	if (m_phase && m_phase[i]) free(m_phase[i]);
	if (m_fmagnitude && m_fmagnitude[i]) free(m_fmagnitude[i]);
	if (m_fphase && m_fphase[i]) free(m_fphase[i]);
        if (m_freal && m_freal[i]) free(m_freal[i]);
        if (m_fimag && m_fimag[i]) free(m_fimag[i]);
    }

    if (m_magnitude) free(m_magnitude);
    if (m_phase) free(m_phase);
    if (m_fmagnitude) free(m_fmagnitude);
    if (m_fphase) free(m_fphase);
    if (m_freal) free(m_freal);
    if (m_fimag) free(m_fimag);
    if (m_factor) free(m_factor);
}

void
FFTMemoryCache::initialise()
{
    Profiler profiler("FFTMemoryCache::initialise");

    size_t width = m_width, height = m_height;

#ifdef DEBUG_FFT_MEMORY_CACHE
    std::cerr << "FFTMemoryCache[" << this << "]::initialise(" << width << "x" << height << " = " << width*height << ")" << std::endl;
#endif

    if (m_storageType == FFTCache::Compact) {
        initialise(m_magnitude);
        initialise(m_phase);
    } else if (m_storageType == FFTCache::Polar) {
        initialise(m_fmagnitude);
        initialise(m_fphase);
    } else {
        initialise(m_freal);
        initialise(m_fimag);
    }

    m_colset.resize(width);

    m_factor = (float *)realloc(m_factor, width * sizeof(float));

    m_width = width;
    m_height = height;

#ifdef DEBUG_FFT_MEMORY_CACHE
    std::cerr << "done, width = " << m_width << " height = " << m_height << std::endl;
#endif
}

void
FFTMemoryCache::initialise(uint16_t **&array)
{
    array = (uint16_t **)malloc(m_width * sizeof(uint16_t *));
    if (!array) throw std::bad_alloc();
    MUNLOCK(array, m_width * sizeof(uint16_t *));

    for (size_t i = 0; i < m_width; ++i) {
	array[i] = (uint16_t *)malloc(m_height * sizeof(uint16_t));
	if (!array[i]) throw std::bad_alloc();
	MUNLOCK(array[i], m_height * sizeof(uint16_t));
    }
}

void
FFTMemoryCache::initialise(float **&array)
{
    array = (float **)malloc(m_width * sizeof(float *));
    if (!array) throw std::bad_alloc();
    MUNLOCK(array, m_width * sizeof(float *));

    for (size_t i = 0; i < m_width; ++i) {
	array[i] = (float *)malloc(m_height * sizeof(float));
	if (!array[i]) throw std::bad_alloc();
	MUNLOCK(array[i], m_height * sizeof(float));
    }
}

void
FFTMemoryCache::setColumnAt(size_t x, float *mags, float *phases, float factor)
{
    Profiler profiler("FFTMemoryCache::setColumnAt: from polar");

    setNormalizationFactor(x, factor);

    if (m_storageType == FFTCache::Rectangular) {
        Profiler subprof("FFTMemoryCache::setColumnAt: polar to cart");
        for (size_t y = 0; y < m_height; ++y) {
            m_freal[x][y] = mags[y] * cosf(phases[y]);
            m_fimag[x][y] = mags[y] * sinf(phases[y]);
        }
    } else {
        for (size_t y = 0; y < m_height; ++y) {
            setMagnitudeAt(x, y, mags[y]);
            setPhaseAt(x, y, phases[y]);
        }
    }

    m_colsetLock.lockForWrite();
    m_colset.set(x);
    m_colsetLock.unlock();
}

void
FFTMemoryCache::setColumnAt(size_t x, float *reals, float *imags)
{
    Profiler profiler("FFTMemoryCache::setColumnAt: from cart");

    float max = 0.0;

    switch (m_storageType) {

    case FFTCache::Rectangular:
        for (size_t y = 0; y < m_height; ++y) {
            m_freal[x][y] = reals[y];
            m_fimag[x][y] = imags[y];
            float mag = sqrtf(reals[y] * reals[y] + imags[y] * imags[y]);
            if (mag > max) max = mag;
        }
        break;

    case FFTCache::Compact:
    case FFTCache::Polar:
    {
        Profiler subprof("FFTMemoryCache::setColumnAt: cart to polar");
        for (size_t y = 0; y < m_height; ++y) {
            float mag = sqrtf(reals[y] * reals[y] + imags[y] * imags[y]);
            float phase = atan2f(imags[y], reals[y]);
            reals[y] = mag;
            imags[y] = phase;
            if (mag > max) max = mag;
        }
        break;
    }
    };

    if (m_storageType == FFTCache::Rectangular) {
        m_factor[x] = max;
        m_colsetLock.lockForWrite();
        m_colset.set(x);
        m_colsetLock.unlock();
    } else {
        setColumnAt(x, reals, imags, max);
    }
}

size_t
FFTMemoryCache::getCacheSize(size_t width, size_t height, FFTCache::StorageType type)
{
    size_t sz = 0;

    switch (type) {

    case FFTCache::Compact:
        sz = (height * 2 + 1) * width * sizeof(uint16_t);

    case FFTCache::Polar:
    case FFTCache::Rectangular:
        sz = (height * 2 + 1) * width * sizeof(float);
    }

    return sz;
}