108 lines
1.9 KiB
C++
108 lines
1.9 KiB
C++
#include "channel.h"
|
|
#include "../Console.h"
|
|
#include "audio.h"
|
|
#include <SDL2/SDL_mixer.h>
|
|
#include <utility>
|
|
|
|
using namespace openloco::audio;
|
|
|
|
channel::channel(int32_t cid)
|
|
: _id(cid)
|
|
{
|
|
}
|
|
|
|
channel::channel(channel&& c)
|
|
: _id(std::exchange(c._id, undefined_id))
|
|
, _chunk(std::exchange(c._chunk, nullptr))
|
|
, _chunk_owner(std::exchange(c._chunk_owner, {}))
|
|
{
|
|
}
|
|
|
|
channel& channel::operator=(channel&& other)
|
|
{
|
|
std::swap(_id, other._id);
|
|
std::swap(_chunk, other._chunk);
|
|
std::swap(_chunk_owner, other._chunk_owner);
|
|
return *this;
|
|
}
|
|
|
|
channel::~channel()
|
|
{
|
|
disposeChunk();
|
|
}
|
|
|
|
bool channel::load(sample& sample)
|
|
{
|
|
disposeChunk();
|
|
_chunk = sample.chunk;
|
|
return true;
|
|
}
|
|
|
|
bool channel::load(const fs::path& path)
|
|
{
|
|
disposeChunk();
|
|
_chunk = Mix_LoadWAV(path.u8string().c_str());
|
|
_chunk_owner = true;
|
|
return _chunk != nullptr;
|
|
}
|
|
|
|
bool channel::play(bool loop)
|
|
{
|
|
if (!isUndefined())
|
|
{
|
|
int loops = loop ? -1 : 0;
|
|
if (Mix_PlayChannel(_id, _chunk, loops) == -1)
|
|
{
|
|
console::log("Error during Mix_PlayChannel: %s", Mix_GetError());
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void channel::stop()
|
|
{
|
|
if (!isUndefined())
|
|
{
|
|
Mix_HaltChannel(_id);
|
|
}
|
|
}
|
|
|
|
void channel::setVolume(int32_t volume)
|
|
{
|
|
if (!isUndefined())
|
|
{
|
|
Mix_Volume(_id, volumeLocoToSDL(volume));
|
|
}
|
|
}
|
|
|
|
void channel::setPan(int32_t pan)
|
|
{
|
|
if (!isUndefined())
|
|
{
|
|
auto [left, right] = panLocoToSDL(pan);
|
|
Mix_SetPanning(_id, left, right);
|
|
}
|
|
}
|
|
|
|
void channel::setFrequency(int32_t freq)
|
|
{
|
|
// TODO
|
|
}
|
|
|
|
bool channel::isPlaying() const
|
|
{
|
|
return isUndefined() ? false : (Mix_Playing(_id) != 0);
|
|
}
|
|
|
|
void channel::disposeChunk()
|
|
{
|
|
if (_chunk_owner)
|
|
{
|
|
Mix_FreeChunk(_chunk);
|
|
}
|
|
_chunk = nullptr;
|
|
_chunk_owner = false;
|
|
}
|