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Split sound_openal_internal into serval files

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Desour 2023-09-28 18:20:53 +02:00 • committed by DS
parent 606215fae9
commit bbc64a2eb5
20 changed files with 2463 additions and 2115 deletions
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src/client/sound/ogg_file.h Normal file
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/*
Minetest
Copyright (C) 2022 DS
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
OpenAL support based on work by:
Copyright (C) 2011 Sebastian 'Bahamada' Rühl
Copyright (C) 2011 Cyriaque 'Cisoun' Skrapits <cysoun@gmail.com>
Copyright (C) 2011 Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
This program 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 2.1 of the License, or
(at your option) any later version.
This program 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 this program; ifnot, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "al_helpers.h"
#include <vorbis/vorbisfile.h>
#include <optional>
#include <string>
/**
* For vorbisfile to read from our buffer instead of from a file.
*/
struct OggVorbisBufferSource {
std::string buf;
size_t cur_offset = 0;
static size_t read_func(void *ptr, size_t size, size_t nmemb, void *datasource) noexcept;
static int seek_func(void *datasource, ogg_int64_t offset, int whence) noexcept;
static int close_func(void *datasource) noexcept;
static long tell_func(void *datasource) noexcept;
static const ov_callbacks s_ov_callbacks;
};
/**
* Metadata of an Ogg-Vorbis file, used for decoding.
* We query this information once and store it in this struct.
*/
struct OggFileDecodeInfo {
std::string name_for_logging;
bool is_stereo;
ALenum format; // AL_FORMAT_MONO16 or AL_FORMAT_STEREO16
size_t bytes_per_sample;
ALsizei freq;
ALuint length_samples = 0;
f32 length_seconds = 0.0f;
};
/**
* RAII wrapper for OggVorbis_File.
*/
struct RAIIOggFile {
bool m_needs_clear = false;
OggVorbis_File m_file;
RAIIOggFile() = default;
DISABLE_CLASS_COPY(RAIIOggFile)
~RAIIOggFile() noexcept
{
if (m_needs_clear)
ov_clear(&m_file);
}
OggVorbis_File *get() { return &m_file; }
std::optional<OggFileDecodeInfo> getDecodeInfo(const std::string &filename_for_logging);
/**
* Main function for loading ogg vorbis sounds.
* Loads exactly the specified interval of PCM-data, and creates an OpenAL
* buffer with it.
*
* @param decode_info Cached meta information of the file.
* @param pcm_start First sample in the interval.
* @param pcm_end One after last sample of the interval (=> exclusive).
* @return An AL sound buffer, or a 0-buffer on failure.
*/
RAIIALSoundBuffer loadBuffer(const OggFileDecodeInfo &decode_info, ALuint pcm_start,
ALuint pcm_end);
};