diff options
Diffstat (limited to 'intern/audaspace/FX/AUD_BaseIIRFilterReader.cpp')
| -rw-r--r-- | intern/audaspace/FX/AUD_BaseIIRFilterReader.cpp | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/intern/audaspace/FX/AUD_BaseIIRFilterReader.cpp b/intern/audaspace/FX/AUD_BaseIIRFilterReader.cpp deleted file mode 100644 index eadfc525f96..00000000000 --- a/intern/audaspace/FX/AUD_BaseIIRFilterReader.cpp +++ /dev/null @@ -1,137 +0,0 @@ -/* - * ***** BEGIN GPL LICENSE BLOCK ***** - * - * Copyright 2009-2011 Jörg Hermann Müller - * - * This file is part of AudaSpace. - * - * Audaspace 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. - * - * AudaSpace is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with Audaspace; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * ***** END GPL LICENSE BLOCK ***** - */ - -/** \file audaspace/FX/AUD_BaseIIRFilterReader.cpp - * \ingroup audfx - */ - - -#include "AUD_BaseIIRFilterReader.h" - -#include <cstring> - -#define CC m_specs.channels + m_channel - -AUD_BaseIIRFilterReader::AUD_BaseIIRFilterReader(boost::shared_ptr<AUD_IReader> reader, int in, - int out) : - AUD_EffectReader(reader), - m_specs(reader->getSpecs()), - m_xlen(in), m_ylen(out), - m_xpos(0), m_ypos(0), m_channel(0) -{ - m_x = new sample_t[m_xlen * m_specs.channels]; - m_y = new sample_t[m_ylen * m_specs.channels]; - - memset(m_x, 0, sizeof(sample_t) * m_xlen * m_specs.channels); - memset(m_y, 0, sizeof(sample_t) * m_ylen * m_specs.channels); -} - -AUD_BaseIIRFilterReader::~AUD_BaseIIRFilterReader() -{ - delete[] m_x; - delete[] m_y; -} - -void AUD_BaseIIRFilterReader::setLengths(int in, int out) -{ - if(in != m_xlen) - { - sample_t* xn = new sample_t[in * m_specs.channels]; - memset(xn, 0, sizeof(sample_t) * in * m_specs.channels); - - for(m_channel = 0; m_channel < m_specs.channels; m_channel++) - { - for(int i = 1; i <= in && i <= m_xlen; i++) - { - xn[(in - i) * CC] = x(-i); - } - } - - delete[] m_x; - m_x = xn; - m_xpos = 0; - m_xlen = in; - } - - if(out != m_ylen) - { - sample_t* yn = new sample_t[out * m_specs.channels]; - memset(yn, 0, sizeof(sample_t) * out * m_specs.channels); - - for(m_channel = 0; m_channel < m_specs.channels; m_channel++) - { - for(int i = 1; i <= out && i <= m_ylen; i++) - { - yn[(out - i) * CC] = y(-i); - } - } - - delete[] m_y; - m_y = yn; - m_ypos = 0; - m_ylen = out; - } -} - -void AUD_BaseIIRFilterReader::read(int& length, bool& eos, sample_t* buffer) -{ - AUD_Specs specs = m_reader->getSpecs(); - if(specs.channels != m_specs.channels) - { - m_specs.channels = specs.channels; - - delete[] m_x; - delete[] m_y; - - m_x = new sample_t[m_xlen * m_specs.channels]; - m_y = new sample_t[m_ylen * m_specs.channels]; - - memset(m_x, 0, sizeof(sample_t) * m_xlen * m_specs.channels); - memset(m_y, 0, sizeof(sample_t) * m_ylen * m_specs.channels); - } - - if(specs.rate != m_specs.rate) - { - m_specs = specs; - sampleRateChanged(m_specs.rate); - } - - m_reader->read(length, eos, buffer); - - for(m_channel = 0; m_channel < m_specs.channels; m_channel++) - { - for(int i = 0; i < length; i++) - { - m_x[m_xpos * CC] = buffer[i * CC]; - m_y[m_ypos * CC] = buffer[i * CC] = filter(); - - m_xpos = (m_xpos + 1) % m_xlen; - m_ypos = (m_ypos + 1) % m_ylen; - } - } -} - -void AUD_BaseIIRFilterReader::sampleRateChanged(AUD_SampleRate rate) -{ -} |