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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 "mtropolis/plugin/midi.h"
#include "mtropolis/plugin/midi_data.h"
namespace MTropolis {
namespace Data {
namespace Midi {
MidiModifier::MidiModifier() : embeddedFlag(0) {
memset(&this->modeSpecific, 0, sizeof(this->modeSpecific));
}
DataReadErrorCode MidiModifier::load(PlugIn &plugIn, const PlugInModifier &prefix, DataReader &reader) {
if (prefix.plugInRevision != 1 && prefix.plugInRevision != 2)
return kDataReadErrorUnsupportedRevision;
if (!executeWhen.load(reader) || !terminateWhen.load(reader) || !reader.readU8(embeddedFlag))
return kDataReadErrorReadFailed;
if (embeddedFlag) {
if (!reader.readU8(modeSpecific.embedded.hasFile))
return kDataReadErrorReadFailed;
if (modeSpecific.embedded.hasFile) {
embeddedFile = Common::SharedPtr<EmbeddedFile>(new EmbeddedFile());
uint8 bigEndianLength[4];
if (!reader.readBytes(bigEndianLength))
return kDataReadErrorReadFailed;
uint32 length = (bigEndianLength[0] << 24) + (bigEndianLength[1] << 16) + (bigEndianLength[2] << 8) + bigEndianLength[3];
embeddedFile->contents.resize(length);
if (length > 0 && !reader.read(&embeddedFile->contents[0], length))
return kDataReadErrorReadFailed;
}
if (!reader.readU8(modeSpecific.embedded.loop) || !reader.readU8(modeSpecific.embedded.overrideTempo) || !reader.readU8(modeSpecific.embedded.volume) || !embeddedTempo.load(reader) || !embeddedFadeIn.load(reader) || !embeddedFadeOut.load(reader))
return kDataReadErrorReadFailed;
} else {
if (!reader.readU8(modeSpecific.singleNote.channel) || !reader.readU8(modeSpecific.singleNote.note) || !reader.readU8(modeSpecific.singleNote.velocity) || !reader.readU8(modeSpecific.singleNote.program) || !singleNoteDuration.load(reader))
return kDataReadErrorReadFailed;
}
return kDataReadErrorNone;
}
} // End of namespace Midi
} // End of namespace Data
} // End of namespace MTropolis
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