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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* drumkitloader.cc
*
* Thu Jan 17 20:54:14 CET 2013
* Copyright 2013 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* 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.
*/
#include "drumkitloader.h"
#include <iostream>
#include <hugin.hpp>
#include "drumkitparser.h"
#include "drumgizmo.h"
#include "audioinputenginemidi.h"
DrumKitLoader::DrumKitLoader(Settings& settings, DrumKit& kit,
AudioInputEngine& ie,
Resamplers& resamplers,
Random& rand)
: settings(settings)
, getter(settings)
, kit(kit)
, ie(ie)
, resamplers(resamplers)
, rand(rand)
{
}
DrumKitLoader::~DrumKitLoader()
{
assert(!running);
}
void DrumKitLoader::init()
{
run();
run_semaphore.wait(); // Wait for the thread to actually start.
}
void DrumKitLoader::deinit()
{
if(running)
{
framesize_semaphore.post();
{
std::lock_guard<std::mutex> guard(mutex);
load_queue.clear();
}
running = false;
semaphore.post();
wait_stop();
}
}
bool DrumKitLoader::loadkit(const std::string& file)
{
settings.drumkit_load_status.store(LoadStatus::Idle);
if(file == "")
{
settings.drumkit_load_status.store(LoadStatus::Error);
return false;
}
DEBUG(drumgizmo, "loadkit(%s)\n", file.c_str());
// Remove all queue AudioFiles from loader before we actually delete them.
skip();
// Delete all Channels, Instruments, Samples and AudioFiles.
kit.clear();
settings.drumkit_load_status.store(LoadStatus::Loading);
DrumKitParser parser(settings, kit, rand);
if(parser.parseFile(file))
{
ERR(drumgizmo, "Drumkit parser failed: %s\n", file.c_str());
settings.drumkit_load_status.store(LoadStatus::Error);
return false;
}
// Check if there is enough free RAM to load the drumkit.
if(!memchecker.enoughFreeMemory(kit))
{
printf("WARNING: "
"There doesn't seem to be enough RAM available to load the kit.\n"
"Trying to load it anyway...\n");
}
loadKit(&kit);
#ifdef WITH_RESAMPLER
resamplers.setup(kit.getSamplerate(), settings.samplerate.load());
#endif/*WITH_RESAMPLER*/
DEBUG(loadkit, "loadkit: Success\n");
return true;
}
void DrumKitLoader::loadKit(DrumKit *kit)
{
// std::lock_guard<std::mutex> guard(mutex);
DEBUG(loader, "Create AudioFile queue from DrumKit\n");
settings.number_of_files_loaded.store(0);
// Count total number of files that need loading:
settings.number_of_files.store(0);
for(auto& instr_ptr: kit->instruments)
{
settings.number_of_files.fetch_add(instr_ptr->audiofiles.size());
}
// Now actually queue them for loading:
for(auto& instr_ptr: kit->instruments)
{
for(auto& audiofile: instr_ptr->audiofiles)
{
load_queue.push_back(audiofile.get());
}
}
DEBUG(loader, "Queued %d (size: %d) AudioFiles for loading.\n",
(int)settings.number_of_files.load(), (int)load_queue.size());
semaphore.post(); // Start loader loop.
}
void DrumKitLoader::skip()
{
std::lock_guard<std::mutex> guard(mutex);
load_queue.clear();
}
void DrumKitLoader::setFrameSize(size_t framesize)
{
std::lock_guard<std::mutex> guard(mutex);
this->framesize = framesize;
framesize_semaphore.post(); // Signal that the framesize has been set.
}
void DrumKitLoader::thread_main()
{
running = true;
run_semaphore.post(); // Signal that the thread has been started.
framesize_semaphore.wait(); // Wait until the framesize has been set.
while(running)
{
size_t size;
{
std::lock_guard<std::mutex> guard(mutex);
size = load_queue.size();
}
// Only sleep if queue is empty.
if(size == 0)
{
semaphore.wait(std::chrono::milliseconds(1000));
}
bool newKit = false;
if(getter.drumkit_file.hasChanged())
{
loadkit(getter.drumkit_file.getValue());
newKit = true;
}
if(getter.midimap_file.hasChanged() || newKit)
{
auto ie_midi = dynamic_cast<AudioInputEngineMidi*>(&ie);
std::cout << "ie_midi: " << (void*)ie_midi << std::endl;
if(ie_midi)
{
settings.midimap_load_status.store(LoadStatus::Loading);
bool ret = ie_midi->loadMidiMap(getter.midimap_file.getValue(),
kit.instruments);
if(ret)
{
settings.midimap_load_status.store(LoadStatus::Done);
}
else
{
settings.midimap_load_status.store(LoadStatus::Error);
}
}
}
std::string filename;
{
std::lock_guard<std::mutex> guard(mutex);
if(load_queue.size() == 0)
{
continue;
}
AudioFile *audiofile = load_queue.front();
load_queue.pop_front();
filename = audiofile->filename;
int preload_size = framesize * CHUNK_MULTIPLIER + framesize;
if(preload_size < 1024)
{
preload_size = 1024;
}
// Note: Remove this line to enable diskstreaming
preload_size = ALL_SAMPLES;
audiofile->load(preload_size);
}
settings.number_of_files_loaded.fetch_add(1);
if(settings.number_of_files.load() == settings.number_of_files_loaded.load())
{
settings.drumkit_load_status.store(LoadStatus::Done);
}
}
DEBUG(loader, "Loader thread finished.");
}
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