150 lines
3.7 KiB
C++
150 lines
3.7 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 "mediastation/audio.h"
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#include "mediastation/debugchannels.h"
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#include "mediastation/actors/sound.h"
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#include "mediastation/mediastation.h"
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namespace MediaStation {
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SoundActor::~SoundActor() {
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unregisterWithStreamManager();
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if (_streamFeed != nullptr) {
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g_engine->getStreamFeedManager()->closeStreamFeed(_streamFeed);
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_streamFeed = nullptr;
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}
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}
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void SoundActor::readParameter(Chunk &chunk, ActorHeaderSectionType paramType) {
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switch (paramType) {
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case kActorHeaderActorId: {
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// We already have this actor's ID, so we will just verify it is the same
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// as the ID we have already read.
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uint32 duplicateActorId = chunk.readTypedUint16();
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if (duplicateActorId != _id) {
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warning("Duplicate actor ID %d does not match original ID %d", duplicateActorId, _id);
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}
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break;
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}
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case kActorHeaderChannelIdent:
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_channelIdent = chunk.readTypedChannelIdent();
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registerWithStreamManager();
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break;
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case kActorHeaderHasOwnSubfile:
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_hasOwnSubfile = static_cast<bool>(chunk.readTypedByte());
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break;
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case kActorHeaderSoundInfo:
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_sequence.readParameters(chunk);
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break;
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case kActorHeaderMovieLoadType:
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_loadType = chunk.readTypedByte();
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break;
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default:
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Actor::readParameter(chunk, paramType);
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}
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}
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void SoundActor::process() {
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if (!_isPlaying) {
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return;
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}
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processTimeEventHandlers();
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if (!_sequence.isActive()) {
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_isPlaying = false;
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_sequence.stop();
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runEventHandlerIfExists(kSoundEndEvent);
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}
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}
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void SoundActor::readChunk(Chunk &chunk) {
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_isLoadedFromChunk = true;
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_sequence.readChunk(chunk);
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}
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ScriptValue SoundActor::callMethod(BuiltInMethod methodId, Common::Array<ScriptValue> &args) {
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ScriptValue returnValue;
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switch (methodId) {
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case kSpatialShowMethod:
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// WORKAROUND: No-op to avoid triggering error on Dalmatians
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// timer_6c06_AnsweringMachine, which calls SpatialShow on a sound.
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// Since the engine is currently flagging errors on unimplemented
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// methods for easier debugging, a no-op is used here to avoid the error.
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assert(args.empty());
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return returnValue;
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case kTimePlayMethod: {
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assert(args.empty());
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timePlay();
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return returnValue;
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}
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case kTimeStopMethod: {
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assert(args.empty());
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timeStop();
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return returnValue;
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}
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default:
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return Actor::callMethod(methodId, args);
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}
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}
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void SoundActor::timePlay() {
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if (_streamFeed == nullptr && !_isLoadedFromChunk) {
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_streamFeed = g_engine->getStreamFeedManager()->openStreamFeed(_id);
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_streamFeed->readData();
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}
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if (_isPlaying) {
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return;
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}
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if (_sequence.isEmpty()) {
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_isPlaying = false;
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return;
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}
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_isPlaying = true;
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_startTime = g_system->getMillis();
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_lastProcessedTime = 0;
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_sequence.play();
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runEventHandlerIfExists(kSoundBeginEvent);
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}
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void SoundActor::timeStop() {
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if (!_isPlaying) {
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return;
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}
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_isPlaying = false;
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_sequence.stop();
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runEventHandlerIfExists(kSoundStoppedEvent);
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}
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} // End of namespace MediaStation
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