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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* drumkit_creator.h
*
* Thu Jan 12 18:51:34 CET 2017
* Copyright 2017 André Nusser
* andre.nusser@googlemail.com
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#pragma once
#include <string>
#include <vector>
#include <cstdint>
class DrumkitCreator
{
public:
using Sample = uint16_t;
//! If is_random is true then this overrules the sample member. If is_random
//! is false however, every sample is chosen as the one in the member variable.
struct WavInfo
{
const std::string filename;
const std::size_t length;
const bool is_random;
const Sample sample;
WavInfo(const std::string& filename, std::size_t length)
: filename(filename), length(length), is_random(true), sample(0) {}
WavInfo(const std::string& filename, std::size_t length, Sample sample)
: filename(filename), length(length), is_random(false), sample(sample) {}
};
struct Audiofile
{
WavInfo* wav_info;
std::size_t filechannel;
};
struct SampleData
{
std::string name;
// Vector of non-owning pointers and therefore it is raw.
std::vector<Audiofile> audiofiles;
};
struct InstrumentData
{
std::string name;
std::string filename;
std::vector<SampleData> sample_data;
};
struct DrumkitData
{
std::string name;
std::size_t number_of_channels;
std::vector<InstrumentData> instruments;
std::vector<WavInfo> wav_infos;
};
DrumkitCreator() = default;
//! This destructor removes all the created temporary files and directories.
~DrumkitCreator();
//! Creates a drumkit from data in the temporary directory of the OS and
//! returns its filename.
std::string create(const DrumkitData& data);
//! Creates a single wav file
void createWav(const WavInfo& wav_info, std::size_t number_of_channels, const std::string& dir);
//! Those functions create some special wav files, drumkits, and midimaps
//@{
std::string createStdKit(const std::string& name);
std::string createSmallKit(const std::string& name);
std::string createHugeKit(const std::string& name);
std::string createSingleChannelWav(const std::string& name);
std::string createMultiChannelWav(const std::string& name);
std::string create0000Wav(const std::string& name);
std::string createStdMidimap(const std::string& name);
//@}
private:
std::vector<std::string> created_files;
std::vector<std::string> created_directories;
bool is_valid(const DrumkitData& data);
std::string createTemporaryDirectory(const std::string& name);
std::vector<Sample> createData(const WavInfo& wav_info,
std::size_t number_of_channels);
void createInstrument(const InstrumentData& data, std::size_t number_of_channels,
const std::string& dir);
std::string createDrumkitFile(const DrumkitData& data, const std::string& dir);
};
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