105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2006 by Nicolas Pitre <nico@cam.org>
|
|
* Copyright (C) 2006-2007 by Stéphane Doyon <s.doyon@videotron.ca>
|
|
* Copyright (C) 2012 Michael Sevakis
|
|
*
|
|
* 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 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include "platform.h"
|
|
#include "dsp_core.h"
|
|
#include "core_alloc.h"
|
|
#include "tdspeed.h"
|
|
|
|
#ifdef HAVE_PITCHCONTROL
|
|
static int handles[4] = { 0, 0, 0, 0 };
|
|
|
|
static int move_callback(int handle, void *current, void *new)
|
|
{
|
|
#if 0
|
|
/* Should not currently need to block this since DSP loop completes an
|
|
iteration before yielding and begins again at its input buffer */
|
|
if (dsp_is_busy(tdspeed_state.dsp))
|
|
return BUFLIB_CB_CANNOT_MOVE; /* DSP processing in progress */
|
|
#endif
|
|
|
|
for (unsigned int i = 0; i < ARRAYLEN(handles); i++)
|
|
{
|
|
if (handle != handles[i])
|
|
continue;
|
|
|
|
tdspeed_move(i, current, new);
|
|
break;
|
|
}
|
|
|
|
return BUFLIB_CB_OK;
|
|
}
|
|
|
|
static struct buflib_callbacks ops =
|
|
{
|
|
.move_callback = move_callback,
|
|
.shrink_callback = NULL,
|
|
};
|
|
|
|
/* Allocate timestretch buffers */
|
|
bool tdspeed_alloc_buffers(int32_t **buffers, const int *buf_s, int nbuf)
|
|
{
|
|
static const char *buffer_names[4] = {
|
|
"tdspeed ovl L",
|
|
"tdspeed ovl R",
|
|
"tdspeed out L",
|
|
"tdspeed out R"
|
|
};
|
|
|
|
for (int i = 0; i < nbuf; i++)
|
|
{
|
|
if (handles[i] <= 0)
|
|
{
|
|
handles[i] = core_alloc_ex(buffer_names[i], buf_s[i], &ops);
|
|
|
|
if (handles[i] <= 0)
|
|
return false;
|
|
}
|
|
|
|
if (buffers[i] == NULL)
|
|
{
|
|
buffers[i] = core_get_data(handles[i]);
|
|
|
|
if (buffers[i] == NULL)
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Free timestretch buffers */
|
|
void tdspeed_free_buffers(int32_t **buffers, int nbuf)
|
|
{
|
|
for (int i = 0; i < nbuf; i++)
|
|
{
|
|
if (handles[i] > 0)
|
|
core_free(handles[i]);
|
|
|
|
handles[i] = 0;
|
|
buffers[i] = NULL;
|
|
}
|
|
}
|
|
#endif /* HAVE_PITCHCONTROL */
|
|
|