187 lines
4.4 KiB
C++
187 lines
4.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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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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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef NUVIE_SOUND_MIXER_DECODER_PC_SPEAKER_STREAM_H
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#define NUVIE_SOUND_MIXER_DECODER_PC_SPEAKER_STREAM_H
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#include "ultima/shared/std/string.h"
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#include "ultima/nuvie/sound/decoder/pc_speaker.h"
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#include "audio/audiostream.h"
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namespace Ultima {
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namespace Nuvie {
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class PCSpeakerStream : public Audio::RewindableAudioStream {
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public:
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PCSpeakerStream() {
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pcspkr = new PCSpeaker(SPKR_OUTPUT_RATE);
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finished = false;
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}
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~PCSpeakerStream() override {
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delete pcspkr;
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}
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/** Is this a stereo stream? */
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bool isStereo() const override {
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return false;
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}
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/** Sample rate of the stream. */
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int getRate() const override {
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return SPKR_OUTPUT_RATE;
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}
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/**
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* End of data reached? If this returns true, it means that at this
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* time there is no data available in the stream. However there may be
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* more data in the future.
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* This is used by e.g. a rate converter to decide whether to keep on
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* converting data or stop.
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*/
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bool endOfData() const override {
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return finished;
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}
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bool rewind() override {
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return false;
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}
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protected:
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PCSpeaker *pcspkr;
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bool finished;
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};
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class PCSpeakerFreqStream : public PCSpeakerStream {
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public:
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PCSpeakerFreqStream() {
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}
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PCSpeakerFreqStream(uint start, uint16 d);
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~PCSpeakerFreqStream() override;
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uint32 getLengthInMsec();
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int readBuffer(sint16 *buffer, const int numSamples) override;
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protected:
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uint32 frequency;
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uint32 duration;
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uint32 total_samples_played;
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};
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class PCSpeakerSweepFreqStream : public PCSpeakerStream {
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public:
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PCSpeakerSweepFreqStream() {
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}
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PCSpeakerSweepFreqStream(uint start, uint end, uint16 d, uint16 s);
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~PCSpeakerSweepFreqStream() override;
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uint32 getLengthInMsec();
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int readBuffer(sint16 *buffer, const int numSamples) override;
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protected:
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uint32 start_freq;
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uint32 finish_freq;
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uint32 cur_freq;
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uint16 duration;
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uint16 stepping;
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uint32 freq_step;
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float samples_per_step;
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float sample_pos;
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uint32 total_samples_played;
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uint32 num_steps;
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uint32 cur_step;
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};
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class PCSpeakerRandomStream : public PCSpeakerStream {
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public:
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PCSpeakerRandomStream() {
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}
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PCSpeakerRandomStream(uint start, uint16 d, uint16 s);
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~PCSpeakerRandomStream() override;
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uint32 getLengthInMsec();
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uint16 getNextFreqValue();
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int readBuffer(sint16 *buffer, const int numSamples) override;
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protected:
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uint16 base_val;
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uint16 duration;
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uint16 stepping;
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uint32 rand_value;
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uint32 sample_pos;
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uint32 total_samples_played;
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uint32 samples_per_step;
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uint32 num_steps;
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uint32 cur_step;
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};
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class PCSpeakerStutterStream : public PCSpeakerStream {
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public:
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PCSpeakerStutterStream() {
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}
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PCSpeakerStutterStream(sint16 a0, uint16 a2, uint16 a4, uint16 a6, uint16 a8);
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~PCSpeakerStutterStream() override;
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uint32 getLengthInMsec();
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int readBuffer(sint16 *buffer, const int numSamples) override;
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protected:
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sint16 arg_0;
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uint16 arg_2;
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uint16 arg_4;
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uint16 arg_6;
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uint16 arg_8;
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uint16 dx;
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uint16 cx;
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float delay;
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float delay_remaining;
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};
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Audio::AudioStream *makePCSpeakerSlugDissolveSfxStream(uint rate);
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Audio::AudioStream *makePCSpeakerGlassSfxStream(uint rate);
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Audio::AudioStream *makePCSpeakerMagicCastingP1SfxStream(uint rate, uint8 magic_circle);
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Audio::AudioStream *makePCSpeakerMagicCastingP2SfxStream(uint rate, uint8 magic_circle);
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Audio::AudioStream *makePCSpeakerAvatarDeathSfxStream(uint rate);
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Audio::AudioStream *makePCSpeakerKalLorSfxStream(uint rate);
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Audio::AudioStream *makePCSpeakerHailStoneSfxStream(uint rate);
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Audio::AudioStream *makePCSpeakerEarthQuakeSfxStream(uint rate);
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} // End of namespace Nuvie
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} // End of namespace Ultima
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#endif
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