frodo-wii/Src/SID_Be.h

103 lines
2.3 KiB
C
Raw Normal View History

2009-01-13 19:46:42 +01:00
/*
* SID_Be.h - 6581 emulation, Be specific stuff
*
* Frodo (C) 1994-1997,2002-2005 Christian Bauer
*
* 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 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "C64.h"
/*
* Initialization, open subscriber
*/
#if B_HOST_IS_LENDIAN
const media_raw_audio_format audio_format = {SAMPLE_FREQ, 1, media_raw_audio_format::B_AUDIO_SHORT, B_MEDIA_LITTLE_ENDIAN, SAMPLE_FREQ / CALC_FREQ * 2};
#else
const media_raw_audio_format audio_format = {SAMPLE_FREQ, 1, media_raw_audio_format::B_AUDIO_SHORT, B_MEDIA_BIG_ENDIAN, SAMPLE_FREQ / CALC_FREQ * 2};
#endif
void DigitalRenderer::init_sound(void)
{
the_player = new BSoundPlayer(&audio_format, "Frodo", buffer_proc, NULL, this);
the_player->SetHasData(true);
the_player->Start();
player_stopped = false;
ready = true;
}
/*
* Destructor, close subscriber
*/
DigitalRenderer::~DigitalRenderer()
{
if (the_player) {
the_player->Stop();
delete the_player;
}
}
/*
* Sample volume (for sampled voice)
*/
void DigitalRenderer::EmulateLine(void)
{
sample_buf[sample_in_ptr] = volume;
sample_in_ptr = (sample_in_ptr + 1) % SAMPLE_BUF_SIZE;
}
/*
* Pause sound output
*/
void DigitalRenderer::Pause(void)
{
if (!player_stopped) {
the_player->Stop();
player_stopped = true;
}
}
/*
* Resume sound output
*/
void DigitalRenderer::Resume(void)
{
if (player_stopped) {
the_player->Start();
player_stopped = false;
}
}
/*
* Stream function
*/
void DigitalRenderer::buffer_proc(void *cookie, void *buffer, size_t size, const media_raw_audio_format &format)
{
((DigitalRenderer *)cookie)->calc_buffer((int16 *)buffer, size);
((DigitalRenderer *)cookie)->the_c64->SoundSync();
}