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/* |
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* SID_Be.h - 6581 emulation, Be specific stuff |
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* |
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* Frodo (C) 1994-1997,2002-2003 Christian Bauer |
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* Frodo (C) 1994-1997,2002-2004 Christian Bauer |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include <MediaKit.h> |
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#include "C64.h" |
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* Initialization, open subscriber |
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*/ |
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#if B_HOST_IS_LENDIAN |
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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}; |
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#else |
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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}; |
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#endif |
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void DigitalRenderer::init_sound(void) |
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{ |
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in_stream = false; |
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the_stream = new BDACStream(); |
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the_sub = new BSubscriber("Frodo SID emulation"); |
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ready = the_sub->Subscribe(the_stream) == B_NO_ERROR; |
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if (ready) { |
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the_stream->SetSamplingRate(SAMPLE_FREQ); |
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the_sub->EnterStream(NULL, true, this, stream_func, NULL, true); |
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the_stream->SetStreamBuffers(SAMPLE_FREQ / CALC_FREQ * 4, 4); // Must be called after EnterStream() |
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in_stream = true; |
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} |
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the_player = new BSoundPlayer(&audio_format, "Frodo", buffer_proc, NULL, this); |
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the_player->SetHasData(true); |
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the_player->Start(); |
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player_stopped = false; |
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ready = true; |
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} |
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DigitalRenderer::~DigitalRenderer() |
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{ |
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if (ready) { |
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if (in_stream) { |
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the_sub->ExitStream(true); |
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in_stream = false; |
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} |
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the_stream->SetStreamBuffers(4096, 8); |
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the_sub->Unsubscribe(); |
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ready = false; |
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if (the_player) { |
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the_player->Stop(); |
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delete the_player; |
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} |
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delete the_sub; |
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delete the_stream; |
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} |
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void DigitalRenderer::Pause(void) |
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{ |
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if (in_stream) { |
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the_sub->ExitStream(true); |
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in_stream = false; |
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if (!player_stopped) { |
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the_player->Stop(); |
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player_stopped = true; |
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} |
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} |
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void DigitalRenderer::Resume(void) |
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{ |
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if (!in_stream) { |
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the_sub->EnterStream(NULL, true, this, stream_func, NULL, true); |
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in_stream = true; |
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if (player_stopped) { |
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the_player->Start(); |
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player_stopped = false; |
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} |
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} |
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* Stream function |
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*/ |
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bool DigitalRenderer::stream_func(void *arg, char *buf, size_t count, void *header) |
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void DigitalRenderer::buffer_proc(void *cookie, void *buffer, size_t size, const media_raw_audio_format &format) |
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{ |
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((DigitalRenderer *)arg)->calc_buffer((int16 *)buf, count); |
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((DigitalRenderer *)arg)->the_c64->SoundSync(); |
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return true; |
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((DigitalRenderer *)cookie)->calc_buffer((int16 *)buffer, size); |
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((DigitalRenderer *)cookie)->the_c64->SoundSync(); |
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} |
