Files
Anemone3DS/source/music.c
2018-05-10 15:43:07 -04:00

82 lines
3.2 KiB
C

/*
* This file is part of Anemone3DS
* Copyright (C) 2016-2018 Contributors in CONTRIBUTORS.md
*
* This program 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.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
#include "music.h"
#include "loading.h"
// Play a given audio struct
Result update_audio(audio_s *audio)
{
svcCreateEvent(&audio->finished, RESET_STICKY);
long size = audio->wave_buf[audio->buf_pos].nsamples * 4 - audio->data_read;
char size_info[50] = {0};
sprintf(size_info, "Audio Size: %ld\n", size);
DEBUG(size_info);
if (audio->wave_buf[audio->buf_pos].status == NDSP_WBUF_DONE) // only run if the current selected buffer has already finished playing
{
size_t read = ov_read(&audio->vf, (char*)audio->wave_buf[audio->buf_pos].data_vaddr + audio->data_read, size, NULL); // read 1 vorbis packet into wave buffer
if (read <= 0) // EoF or error
{
ov_clear(&audio->vf);
if (read == 0) // EoF
{
ov_open(fmemopen(audio->filebuf, audio->filesize, "rb"), &audio->vf, NULL, 0); // Reopen file. Don't need to reinit channel stuff since it's all the same as before
} else // Error :(
{
char error[100] = {0};
sprintf(error, "Vorbis play error: %d\n", read);
DEBUG(error);
ndspChnReset(0);
return MAKERESULT(RL_FATAL, RS_INVALIDARG, RM_APPLICATION, RD_NO_DATA);
}
} else
{
audio->data_read += read;
if (read == size) {
audio->data_read = 0;
ndspChnWaveBufAdd(0, &audio->wave_buf[audio->buf_pos]); // Add buffer to ndsp
audio->buf_pos = 1 - audio->buf_pos; // switch to other buffer to load and prepare it while the current one is playing
}
}
}
return MAKERESULT(RL_SUCCESS, RS_SUCCESS, RM_APPLICATION, RD_SUCCESS);
}
void thread_audio(void* data) {
audio_s *audio = (audio_s*)data;
while(!audio->stop) {
update_audio(audio);
}
svcSignalEvent(audio->finished);
free(audio->filebuf);
free(audio);
}
void play_audio(audio_s *audio) {
threadCreate(thread_audio, audio, 0x1000, 0x3F, 1, true);
}