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