|
|
- /*
- * Copyright (C) 2017-2019 Christopher J. Howard
- *
- * This file is part of Antkeeper Source Code.
- *
- * Antkeeper Source Code 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 3 of the License, or
- * (at your option) any later version.
- *
- * Antkeeper Source Code 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 Antkeeper Source Code. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #include "sound-system.hpp"
- #include <stdexcept>
- #include "dr_libs/dr_wav.h"
-
- SoundSystem::SoundSystem(ComponentManager* componentManager):
- System(componentManager),
- entityGroup(componentManager),
- device(nullptr),
- context(nullptr)
- {
- device = alcOpenDevice(nullptr);
- if (!device)
- {
- throw std::runtime_error("SoundSystem::SoundSystem(): Failed to open audio device.");
- }
-
- context = alcCreateContext(device, nullptr);
- if (!alcMakeContextCurrent(context))
- {
- throw std::runtime_error("SoundSystem::SoundSystem(): Failed to create audio context.");
- }
-
- ALfloat listenerOrientation[] = { 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f };
- alListener3f(AL_POSITION, 0.0f, 0.0f, 1.0f);
- alListener3f(AL_VELOCITY, 0.0f, 0.0f, 0.0f);
- alListenerfv(AL_ORIENTATION, listenerOrientation);
-
- alGenSources((ALuint)1, &source);
- alSourcef(source, AL_PITCH, 1);
- alSourcef(source, AL_GAIN, 1);
- alSource3f(source, AL_POSITION, 0, 0, 0);
- alSource3f(source, AL_VELOCITY, 0, 0, 0);
- alSourcei(source, AL_LOOPING, AL_FALSE);
-
- alGenBuffers((ALuint)1, &buffer);
-
- // Load wav file
- {
- const char* filename = "/home/cjhoward/projects/antkeeper/modules/antkeeper-data/sounds/shutter.wav";
- unsigned int channels;
- unsigned int sampleRate;
- drwav_uint64 frameCount;
- std::int16_t* sampleData = drwav_open_file_and_read_pcm_frames_s16(filename, &channels, &sampleRate, &frameCount);
-
- if (sampleData == nullptr)
- {
- throw std::runtime_error("Couldn't load wav file");
- drwav_free(sampleData);
- }
-
- bool stereo = (channels > 1);
- ALenum format = (stereo) ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16;
-
- std::size_t sampleCount = frameCount * channels;
- std::size_t sampleDataSize = sampleCount * sizeof(drwav_int16);
-
- alBufferData(buffer, format, sampleData, sampleDataSize, sampleRate);
- }
-
- alSourcei(source, AL_BUFFER, buffer);
- //alSourcePlay(source);
-
- }
-
- SoundSystem::~SoundSystem()
- {
- alDeleteSources(1, &source);
- alDeleteBuffers(1, &buffer);
- alcMakeContextCurrent(nullptr);
- alcDestroyContext(context);
- alcCloseDevice(device);
- }
-
- void SoundSystem::scrot()
- {
- alSourcePlay(source);
- }
-
- void SoundSystem::update(float t, float dt)
- {
- auto members = entityGroup.getMembers();
- for (const SoundSourceEntityGroup::Member* member: *members)
- {
- TransformComponent* transform = std::get<0>(member->components);
- SoundSourceComponent* sound = std::get<1>(member->components);
- }
- }
-
- void SoundSystem::memberRegistered(const SoundSourceEntityGroup::Member* member)
- {
- TransformComponent* transform = std::get<0>(member->components);
- SoundSourceComponent* sound = std::get<1>(member->components);
- }
-
- void SoundSystem::memberUnregistered(const SoundSourceEntityGroup::Member* member)
- {
- TransformComponent* transform = std::get<0>(member->components);
- SoundSourceComponent* sound = std::get<1>(member->components);
- }
-
|