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Accept FS #10244 by Wincent Balin: more pdbox work done for GSoC; also some keyword and line-ending fixes by me

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21626 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Peter D'Hoye 2009-07-03 22:16:11 +00:00
parent eabeb928dd
commit 0d4560cb03
113 changed files with 10637 additions and 4420 deletions
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144
apps/plugins/pdbox/PDa/src/s_audio_rockbox.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2009 Wincent Balin
*
* 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 "plugin.h"
#include "pdbox.h"
#include "m_pd.h"
#include "s_stuff.h"
/* Sound output buffer. */
#define AUDIO_OUTPUT_BLOCKS 3
static struct pdbox_audio_block audio_output[AUDIO_OUTPUT_BLOCKS];
static unsigned int output_head;
static unsigned int output_tail;
static unsigned int output_fill;
/* Open audio. */
void rockbox_open_audio(int rate)
{
unsigned int i;
/* Initialize output buffer. */
for(i = 0; i < AUDIO_OUTPUT_BLOCKS; i++)
audio_output[i].fill = 0;
output_head = 0;
output_tail = 0;
output_fill = 0;
#if INPUT_SRC_CAPS != 0
/* Select playback */
rb->audio_set_input_source(AUDIO_SRC_PLAYBACK, SRCF_PLAYBACK);
rb->audio_set_output_source(AUDIO_SRC_PLAYBACK);
#endif
/* Set sample rate of the audio buffer. */
rb->pcm_set_frequency(rate);
}
/* Close audio. */
void rockbox_close_audio(void)
{
/* Stop playback. */
rb->pcm_play_stop();
/* Restore default sampling rate. */
rb->pcm_set_frequency(HW_SAMPR_DEFAULT);
}
/* Rockbox audio callback. */
void pdbox_get_more(unsigned char** start, size_t* size)
{
if(output_fill > 0)
{
/* Store output data address and size. */
*start = (unsigned char*) audio_output[output_tail].data;
*size = audio_output[output_tail].fill;
/* Advance tail index. */
audio_output[output_tail].fill = 0;
output_fill--;
if(output_tail == AUDIO_OUTPUT_BLOCKS-1)
output_tail = 0;
else
output_tail++;
}
else
{
/* Nothing to play. */
*start = NULL;
*size = 0;
return;
}
}
/* Audio I/O. */
int rockbox_send_dacs(void)
{
/* Start playback if needed and possible. */
if(output_fill > 1 &&
audio_output[output_tail].fill == PD_AUDIO_BLOCK_SIZE)
{
/* Start playback. */
rb->pcm_play_data(pdbox_get_more,
(unsigned char*) audio_output[output_tail].data,
PD_AUDIO_BLOCK_SIZE);
/* Advance tail index. */
audio_output[output_tail].fill = PD_AUDIO_BLOCK_SIZE;
output_fill--;
if(output_tail == AUDIO_OUTPUT_BLOCKS-1)
output_tail = 0;
else
output_tail++;
}
#if 0
if (sys_getrealtime() > timebefore + 0.002)
{
/* post("slept"); */
return (SENDDACS_SLEPT);
}
else
#endif
return (SENDDACS_YES);
}
/* Placeholder. */
void rockbox_listdevs(void)
{
}
#if 0
/* Scanning for devices */
void rockbox_getdevs(char *indevlist, int *nindevs,
char *outdevlist, int *noutdevs, int *canmulti,
int maxndev, int devdescsize)
{
}
#endif