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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "ultima/ultima8/misc/debugger.h"
#include "ultima/ultima8/audio/sound_flex.h"
#include "ultima/ultima8/audio/sonarc_audio_sample.h"
#include "ultima/ultima8/audio/raw_audio_sample.h"
#include "common/memstream.h"
namespace Ultima {
namespace Ultima8 {
SoundFlex::SoundFlex(Common::SeekableReadStream *rs) : Archive(rs), _samples(nullptr) {
uint32 size = 0;
uint8 *buf = getRawObject(0, &size);
if (!size || !buf) {
warning("couldn't load sound flex");
return;
}
Common::MemoryReadStream st(buf, size);
_index.push_back(SoundFlexEntry(""));
if (buf[0] == 0xFF) {
// Crusader flex has an index in the first object with the format:
// [00 or FF] [ 3 bytes, often 'oB0' or 'pB0' ] [ null-terminated name ]
// read this data in and work out how to interpret it - probably tells
// some info about how to play back the raw sounds (eg, loop points?)
while (!st.eos() && _index.size() < _count) {
uint32 data = st.readUint32LE();
Std::string str;
char c = st.readByte();
while (c != 0 && !st.eos()) {
str.push_back(c);
c = st.readByte();
}
_index.push_back(SoundFlexEntry(str.c_str(), data));
}
} else {
// In U8 the first object just has 8-byte names.
char name[9] = {0};
int entries = MIN(size / 8, _count);
for (int i = 0; i < entries; i++) {
st.read(name, 8);
_index.push_back(SoundFlexEntry(name));
}
}
}
SoundFlex::~SoundFlex() {
Archive::uncache();
delete [] _samples;
}
AudioSample *SoundFlex::getSample(uint32 index) {
if (index >= _count)
return nullptr;
cache(index);
return _samples[index];
}
void SoundFlex::cache(uint32 index) {
if (index >= _count) return;
if (!_samples) {
_samples = new AudioSample * [_count];
memset(_samples, 0, sizeof(AudioSample *) * _count);
}
if (_samples[index]) return;
// This will cache the data
uint32 size;
uint8 *buf = getRawObject(index, &size);
if (!buf || !size) return;
if (strncmp(reinterpret_cast<const char *>(buf), "ASFX", 4) == 0) {
// After the 32 byte header, ASFX (crusader audio) is just raw 11025 data
if (index < _index.size()) {
const SoundFlexEntry &entry = _index[index];
debug(6, "SoundFlex: Playing sfx %d (%s) with data 0x%04X", index, entry._name.c_str(), entry._data);
}
_samples[index] = new RawAudioSample(buf + 32, size - 32, 11025, true, false);
} else {
_samples[index] = new SonarcAudioSample(buf, size);
}
}
void SoundFlex::uncache(uint32 index) {
if (index >= _count) return;
if (!_samples) return;
delete _samples[index];
_samples[index] = nullptr;
}
bool SoundFlex::isCached(uint32 index) const {
if (index >= _count) return false;
if (!_samples) return false;
return (_samples[index] != nullptr);
}
} // End of namespace Ultima8
} // End of namespace Ultima
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