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* Replaced the A8SVXDecoder class with a function to return an AudioStream in trunk/sound/.

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* Refactored sound code in Parallaction to use the new Audio::make8SVXStream.

svn-id: r41460
This commit is contained in:
Nicola Mettifogo 2009-06-12 07:18:01 +00:00
parent 5915e60452
commit df1534ffd0
5 changed files with 115 additions and 120 deletions
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10
engines/parallaction/sound.h
View File

@ -154,10 +154,9 @@ class AmigaSoundMan_ns : public SoundMan_ns {
uint32 dataSize;
bool dispose;
Audio::SoundHandle handle;
uint32 flags;
} _channels[NUM_SFX_CHANNELS];
void loadChannelData(const char *filename, Channel *ch);
Audio::AudioStream *loadChannelData(const char *filename, Channel *ch, bool looping);
public:
AmigaSoundMan_ns(Parallaction_ns *vm);
@ -202,11 +201,8 @@ protected:
uint32 dataSize;
bool dispose;
Audio::SoundHandle handle;
uint32 flags;
} _channels[NUM_SFX_CHANNELS];
virtual void loadChannelData(const char *filename, Channel *ch) = 0;
public:
SoundMan_br(Parallaction_br *vm);
~SoundMan_br();
@ -228,7 +224,7 @@ class DosSoundMan_br : public SoundMan_br {
MidiPlayer_MSC *_midiPlayer;
void loadChannelData(const char *filename, Channel *ch);
Audio::AudioStream *loadChannelData(const char *filename, Channel *ch, bool looping);
public:
DosSoundMan_br(Parallaction_br *vm, MidiDriver *midiDriver);
@ -246,7 +242,7 @@ class AmigaSoundMan_br : public SoundMan_br {
Audio::AudioStream *_musicStream;
Audio::SoundHandle _musicHandle;
void loadChannelData(const char *filename, Channel *ch);
Audio::AudioStream *loadChannelData(const char *filename, Channel *ch, bool looping);
public:
AmigaSoundMan_br(Parallaction_br *vm);

58
engines/parallaction/sound_br.cpp
View File

@ -401,7 +401,7 @@ DosSoundMan_br::~DosSoundMan_br() {
delete _midiPlayer;
}
void DosSoundMan_br::loadChannelData(const char *filename, Channel *ch) {
Audio::AudioStream *DosSoundMan_br::loadChannelData(const char *filename, Channel *ch, bool looping) {
Common::SeekableReadStream *stream = _vm->_disk->loadSound(filename);
ch->dataSize = stream->size();
@ -414,6 +414,15 @@ void DosSoundMan_br::loadChannelData(const char *filename, Channel *ch) {
// TODO: Confirm sound rate
ch->header.samplesPerSec = 11025;
uint32 loopStart = 0, loopEnd = 0, flags = Audio::Mixer::FLAG_UNSIGNED;
if (looping) {
loopEnd = ch->dataSize;
flags |= Audio::Mixer::FLAG_LOOP;
}
// Create the input stream
return Audio::makeLinearInputStream((byte *)ch->data, ch->dataSize, ch->header.samplesPerSec, flags, loopStart, loopEnd);
}
void DosSoundMan_br::playSfx(const char *filename, uint channel, bool looping, int volume) {
@ -426,16 +435,8 @@ void DosSoundMan_br::playSfx(const char *filename, uint channel, bool looping, i
debugC(1, kDebugAudio, "DosSoundMan_br::playSfx(%s, %u, %i, %i)", filename, channel, looping, volume);
Channel *ch = &_channels[channel];
loadChannelData(filename, ch);
uint32 loopStart = 0, loopEnd = 0, flags = Audio::Mixer::FLAG_UNSIGNED;
if (looping) {
loopEnd = ch->dataSize;
flags |= Audio::Mixer::FLAG_LOOP;
}
_mixer->playRaw(Audio::Mixer::kSFXSoundType, &ch->handle, ch->data, ch->dataSize,
ch->header.samplesPerSec, flags, -1, volume, 0, loopStart, loopEnd);
Audio::AudioStream *input = loadChannelData(filename, ch, looping);
_mixer->playInputStream(Audio::Mixer::kSFXSoundType, &ch->handle, input, -1, volume);
}
void DosSoundMan_br::playMusic() {
@ -468,8 +469,10 @@ AmigaSoundMan_br::~AmigaSoundMan_br() {
stopMusic();
}
void AmigaSoundMan_br::loadChannelData(const char *filename, Channel *ch) {
Audio::AudioStream *AmigaSoundMan_br::loadChannelData(const char *filename, Channel *ch, bool looping) {
Common::SeekableReadStream *stream = _vm->_disk->loadSound(filename);
Audio::AudioStream *input = 0;
if (_vm->getFeatures() & GF_DEMO) {
ch->dataSize = stream->size();
ch->data = (int8*)malloc(ch->dataSize);
@ -478,12 +481,20 @@ void AmigaSoundMan_br::loadChannelData(const char *filename, Channel *ch) {
// TODO: Confirm sound rate
ch->header.samplesPerSec = 11025;
uint32 loopStart = 0, loopEnd = 0, flags = 0;
if (looping) {
loopEnd = ch->header.oneShotHiSamples + ch->header.repeatHiSamples;
flags = Audio::Mixer::FLAG_LOOP;
}
input = Audio::makeLinearInputStream((byte *)ch->data, ch->dataSize, ch->header.samplesPerSec, flags, loopStart, loopEnd);
} else {
Audio::A8SVXDecoder decoder(*stream, ch->header, ch->data, ch->dataSize);
decoder.decode();
input = Audio::make8SVXStream(*stream, looping);
delete stream;
}
ch->dispose = true;
delete stream;
return input;
}
void AmigaSoundMan_br::playSfx(const char *filename, uint channel, bool looping, int volume) {
@ -501,24 +512,13 @@ void AmigaSoundMan_br::playSfx(const char *filename, uint channel, bool looping,
debugC(1, kDebugAudio, "AmigaSoundMan_ns::playSfx(%s, %i)", filename, channel);
Channel *ch = &_channels[channel];
loadChannelData(filename, ch);
uint32 loopStart = 0, loopEnd = 0, flags = 0;
if (looping) {
// the standard way to loop 8SVX audio implies use of the oneShotHiSamples and
// repeatHiSamples fields, but Nippon Safes handles loops according to flags
// set in its location scripts and always operates on the whole data.
loopStart = 0;
loopEnd = ch->header.oneShotHiSamples + ch->header.repeatHiSamples;
flags = Audio::Mixer::FLAG_LOOP;
}
Audio::AudioStream *input = loadChannelData(filename, ch, looping);
if (volume == -1) {
volume = ch->header.volume;
}
_mixer->playRaw(Audio::Mixer::kSFXSoundType, &ch->handle, ch->data, ch->dataSize,
ch->header.samplesPerSec, flags, -1, volume, 0, loopStart, loopEnd);
_mixer->playInputStream(Audio::Mixer::kSFXSoundType, &ch->handle, input, -1, volume);
}
void AmigaSoundMan_br::playMusic() {

41
engines/parallaction/sound_ns.cpp
View File

@ -360,8 +360,9 @@ static int8 res_amigaBeep[AMIGABEEP_SIZE] = {
0, 20, 40, 60, 80, 60, 40, 20, 0, -20, -40, -60, -80, -60, -40, -20
};
Audio::AudioStream *AmigaSoundMan_ns::loadChannelData(const char *filename, Channel *ch, bool looping) {
Audio::AudioStream *input = 0;
void AmigaSoundMan_ns::loadChannelData(const char *filename, Channel *ch) {
if (!scumm_stricmp("beep", filename)) {
ch->header.oneShotHiSamples = 0;
ch->header.repeatHiSamples = 0;
@ -376,14 +377,22 @@ void AmigaSoundMan_ns::loadChannelData(const char *filename, Channel *ch) {
}
ch->dataSize = AMIGABEEP_SIZE * NUM_REPEATS;
ch->dispose = true;
return;
uint32 loopStart = 0, loopEnd = 0, flags = 0;
if (looping) {
loopEnd = ch->header.oneShotHiSamples + ch->header.repeatHiSamples;
flags = Audio::Mixer::FLAG_LOOP;
}
input = Audio::makeLinearInputStream((byte *)ch->data, ch->dataSize, ch->header.samplesPerSec, flags, loopStart, loopEnd);
} else {
Common::SeekableReadStream *stream = _vm->_disk->loadSound(filename);
input = Audio::make8SVXStream(*stream, looping);
ch->dispose = true;
delete stream;
}
Common::SeekableReadStream *stream = _vm->_disk->loadSound(filename);
Audio::A8SVXDecoder decoder(*stream, ch->header, ch->data, ch->dataSize);
decoder.decode();
ch->dispose = true;
delete stream;
return input;
}
void AmigaSoundMan_ns::playSfx(const char *filename, uint channel, bool looping, int volume) {
@ -397,27 +406,13 @@ void AmigaSoundMan_ns::playSfx(const char *filename, uint channel, bool looping,
debugC(1, kDebugAudio, "AmigaSoundMan_ns::playSfx(%s, %i)", filename, channel);
Channel *ch = &_channels[channel];
loadChannelData(filename, ch);
uint32 loopStart, loopEnd, flags;
if (looping) {
// the standard way to loop 8SVX audio implies use of the oneShotHiSamples and
// repeatHiSamples fields, but Nippon Safes handles loops according to flags
// set in its location scripts and always operates on the whole data.
loopStart = 0;
loopEnd = ch->header.oneShotHiSamples + ch->header.repeatHiSamples;
flags = Audio::Mixer::FLAG_LOOP;
} else {
loopStart = loopEnd = 0;
flags = 0;
}
Audio::AudioStream *input = loadChannelData(filename, ch, looping);
if (volume == -1) {
volume = ch->header.volume;
}
_mixer->playRaw(Audio::Mixer::kSFXSoundType, &ch->handle, ch->data, ch->dataSize,
ch->header.samplesPerSec, flags, -1, volume, 0, loopStart, loopEnd);
_mixer->playInputStream(Audio::Mixer::kSFXSoundType, &ch->handle, input, -1, volume);
}
void AmigaSoundMan_ns::stopSfx(uint channel) {

97
sound/iff.cpp
View File

@ -26,58 +26,83 @@
#include "sound/iff.h"
#include "sound/audiostream.h"
#include "sound/mixer.h"
#include "common/func.h"
namespace Audio {
void A8SVXDecoder::readVHDR(Common::IFFChunk &chunk) {
_header.oneShotHiSamples = chunk.readUint32BE();
_header.repeatHiSamples = chunk.readUint32BE();
_header.samplesPerHiCycle = chunk.readUint32BE();
_header.samplesPerSec = chunk.readUint16BE();
_header.octaves = chunk.readByte();
_header.compression = chunk.readByte();
_header.volume = chunk.readUint32BE();
void Voice8Header::load(Common::ReadStream &stream) {
stream.read(this, sizeof(Voice8Header));
oneShotHiSamples = FROM_BE_32(oneShotHiSamples);
repeatHiSamples = FROM_BE_32(repeatHiSamples);
samplesPerHiCycle = FROM_BE_32(samplesPerHiCycle);
samplesPerSec = FROM_BE_16(samplesPerSec);
volume = FROM_BE_32(volume);
}
void A8SVXDecoder::readBODY(Common::IFFChunk &chunk) {
switch (_header.compression) {
case 0:
_dataSize = chunk.size;
_data = (int8*)malloc(_dataSize);
chunk.read(_data, _dataSize);
break;
case 1:
warning("compressed IFF audio is not supported");
break;
struct A8SVXLoader {
Voice8Header _header;
int8 *_data;
uint32 _dataSize;
void load(Common::ReadStream &input) {
Common::IFFParser parser(input);
Common::IFFChunk *chunk;
while (chunk = parser.nextChunk()) {
callback(*chunk);
}
}
}
A8SVXDecoder::A8SVXDecoder(Common::ReadStream &input, Voice8Header &header, int8 *&data, uint32 &dataSize) :
IFFParser(input), _header(header), _data(data), _dataSize(dataSize) {
if (_typeId != ID_8SVX)
error("unknown audio format");
}
void A8SVXDecoder::decode() {
Common::IFFChunk *chunk;
while ((chunk = nextChunk()) != 0) {
switch (chunk->id) {
bool callback(Common::IFFChunk &chunk) {
switch (chunk.id) {
case ID_VHDR:
readVHDR(*chunk);
_header.load(chunk);
break;
case ID_BODY:
readBODY(*chunk);
_dataSize = chunk.size;
_data = (int8*)malloc(_dataSize);
assert(_data);
loadData(&chunk);
return true;
}
return false;
}
void loadData(Common::ReadStream *stream) {
switch (_header.compression) {
case 0:
stream->read(_data, _dataSize);
break;
case 1:
// implement other formats here
error("compressed IFF audio is not supported");
break;
}
}
};
AudioStream *make8SVXStream(Common::ReadStream &input, bool loop) {
A8SVXLoader loader;
loader.load(input);
uint32 loopStart = 0, loopEnd = 0, flags = 0;
if (loop) {
// the standard way to loop 8SVX audio implies use of the oneShotHiSamples and
// repeatHiSamples fields
loopStart = 0;
loopEnd = loader._header.oneShotHiSamples + loader._header.repeatHiSamples;
flags |= Audio::Mixer::FLAG_LOOP;
}
flags |= Audio::Mixer::FLAG_AUTOFREE;
return Audio::makeLinearInputStream((byte *)loader._data, loader._dataSize, loader._header.samplesPerSec, flags, loopStart, loopEnd);
}
}

29
sound/iff.h
View File

@ -32,6 +32,7 @@
#define SOUND_IFF_H
#include "common/iff_container.h"
#include "sound/audiostream.h"
namespace Audio {
@ -47,34 +48,12 @@ struct Voice8Header {
Voice8Header() {
memset(this, 0, sizeof(Voice8Header));
}
void load(Common::ReadStream &stream);
};
AudioStream *make8SVXStream(Common::ReadStream &stream, bool loop);
/*
A8SVX decoder reads 8SVX subtype of IFF files.
TODO: make a factory function for this kind of stream?
*/
class A8SVXDecoder : public Common::IFFParser {
protected:
Voice8Header &_header;
int8* &_data;
uint32 &_dataSize;
protected:
void readVHDR(Common::IFFChunk &chunk);
void readBODY(Common::IFFChunk &chunk);
public:
A8SVXDecoder(Common::ReadStream &input, Voice8Header &header, int8 *&data, uint32 &dataSize);
void decode();
};
/*
TODO: Implement a parser for AIFF subtype.
*/
}