diff options
Diffstat (limited to 'intern/audaspace/FX/AUD_ReverseReader.cpp')
-rw-r--r-- | intern/audaspace/FX/AUD_ReverseReader.cpp | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/intern/audaspace/FX/AUD_ReverseReader.cpp b/intern/audaspace/FX/AUD_ReverseReader.cpp deleted file mode 100644 index 1fe60a4e07e..00000000000 --- a/intern/audaspace/FX/AUD_ReverseReader.cpp +++ /dev/null @@ -1,101 +0,0 @@ -/* - * 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. - */ - -/** \file audaspace/FX/AUD_ReverseReader.cpp - * \ingroup audfx - */ - - -#include "AUD_ReverseReader.h" - -#include <cstring> - -static const char* props_error = "AUD_ReverseReader: The reader has to be " - "seekable and a finite length."; - -AUD_ReverseReader::AUD_ReverseReader(boost::shared_ptr<AUD_IReader> reader) : - AUD_EffectReader(reader), - m_length(reader->getLength()), - m_position(0) -{ - if(m_length < 0 || !reader->isSeekable()) - AUD_THROW(AUD_ERROR_PROPS, props_error); -} - -void AUD_ReverseReader::seek(int position) -{ - m_position = position; -} - -int AUD_ReverseReader::getLength() const -{ - return m_length; -} - -int AUD_ReverseReader::getPosition() const -{ - return m_position; -} - -void AUD_ReverseReader::read(int& length, bool& eos, sample_t* buffer) -{ - // first correct the length - if(m_position + length > m_length) - length = m_length - m_position; - - if(length <= 0) - { - length = 0; - eos = true; - return; - } - - const AUD_Specs specs = getSpecs(); - const int samplesize = AUD_SAMPLE_SIZE(specs); - - sample_t temp[AUD_CHANNEL_MAX]; - - int len = length; - - // read from reader - m_reader->seek(m_length - m_position - len); - m_reader->read(len, eos, buffer); - - // set null if reader didn't give enough data - if(len < length) - memset(buffer, 0, (length - len) * samplesize); - - // copy the samples reverted - for(int i = 0; i < length / 2; i++) - { - memcpy(temp, - buffer + (len - 1 - i) * specs.channels, - samplesize); - memcpy(buffer + (len - 1 - i) * specs.channels, - buffer + i * specs.channels, - samplesize); - memcpy(buffer + i * specs.channels, - temp, - samplesize); - } - - m_position += length; - eos = false; -} |