mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-22 18:02:05 +00:00
a1840bd573
svn-id: r48637
281 lines
7.7 KiB
C++
281 lines
7.7 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "m4/m4.h"
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#include "m4/sound.h"
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#include "m4/compression.h"
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#include "common/stream.h"
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#include "sound/audiostream.h"
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#include "sound/mixer.h"
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#include "sound/decoders/raw.h"
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namespace M4 {
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Sound::Sound(MadsM4Engine *vm, Audio::Mixer *mixer, int volume) :
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_vm(vm), _mixer(mixer) {
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for (int i = 0; i < SOUND_HANDLES; i++)
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_handles[i].type = kFreeHandle;
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_dsrFileLoaded = false;
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setVolume(volume);
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}
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Sound::~Sound() {
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unloadDSRFile();
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}
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SndHandle *Sound::getHandle() {
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for (int i = 0; i < SOUND_HANDLES; i++) {
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if (_handles[i].type == kFreeHandle)
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return &_handles[i];
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if (!_mixer->isSoundHandleActive(_handles[i].handle)) {
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_handles[i].type = kFreeHandle;
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return &_handles[i];
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}
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}
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error("Sound::getHandle(): Too many sound handles");
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return NULL; // for compilers that don't support NORETURN
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}
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bool Sound::isHandleActive(SndHandle *handle) {
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return (_mixer->isSoundHandleActive(handle->handle));
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}
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void Sound::playSound(const char *soundName, int volume, bool loop, int channel) {
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Common::SeekableReadStream *soundStream = _vm->res()->get(soundName);
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SndHandle *handle;
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if (channel < 0) {
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handle = getHandle();
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} else {
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if (_handles[channel].type == kFreeHandle) {
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handle = &_handles[channel];
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} else {
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warning("Attempted to play a sound on a channel that isn't free");
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return;
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}
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}
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int bufferSize = soundStream->size();
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byte *buffer = new byte[bufferSize];
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soundStream->read(buffer, bufferSize);
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_vm->res()->toss(soundName);
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handle->type = kEffectHandle;
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_vm->res()->toss(soundName);
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// Sound format is 8bit mono, unsigned, 11025kHz
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Audio::AudioStream *stream = Audio::makeLoopingAudioStream(
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Audio::makeRawStream(buffer, bufferSize, 11025, Audio::FLAG_UNSIGNED),
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loop ? 0 : 1);
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_mixer->playStream(Audio::Mixer::kSFXSoundType, &handle->handle, stream, -1, volume);
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}
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void Sound::playSound(int soundNum) {
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warning("TODO: playSound(%d)", soundNum);
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}
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void Sound::pauseSound() {
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for (int i = 0; i < SOUND_HANDLES; i++) {
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if (_handles[i].type == kEffectHandle)
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_mixer->pauseHandle(_handles[i].handle, true);
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}
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}
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void Sound::resumeSound() {
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for (int i = 0; i < SOUND_HANDLES; i++) {
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if (_handles[i].type == kEffectHandle)
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_mixer->pauseHandle(_handles[i].handle, false);
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}
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}
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void Sound::stopSound(int channel) {
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if (channel >= 0) {
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if (_handles[channel].type == kEffectHandle) {
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_mixer->stopHandle(_handles[channel].handle);
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_handles[channel].type = kFreeHandle;
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return;
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} else {
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warning("Attempted to stop a sound on a channel that is already free");
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return;
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}
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}
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for (int i = 0; i < SOUND_HANDLES; i++) {
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if (_handles[i].type == kEffectHandle) {
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_mixer->stopHandle(_handles[i].handle);
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_handles[i].type = kFreeHandle;
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}
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}
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}
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void Sound::playVoice(const char *soundName, int volume) {
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Common::SeekableReadStream *soundStream = _vm->res()->get(soundName);
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SndHandle *handle = getHandle();
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byte *buffer;
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buffer = (byte *)malloc(soundStream->size());
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soundStream->read(buffer, soundStream->size());
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handle->type = kEffectHandle;
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_vm->res()->toss(soundName);
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// Voice format is 8bit mono, unsigned, 11025kHz
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Audio::AudioStream *stream = Audio::makeRawStream(buffer, soundStream->size(), 11025, Audio::FLAG_UNSIGNED);
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_mixer->playStream(Audio::Mixer::kSFXSoundType, &handle->handle, stream, -1, volume);
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}
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void Sound::pauseVoice() {
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for (int i = 0; i < SOUND_HANDLES; i++)
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if (_handles[i].type == kVoiceHandle)
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_mixer->pauseHandle(_handles[i].handle, true);
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}
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void Sound::resumeVoice() {
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for (int i = 0; i < SOUND_HANDLES; i++)
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if (_handles[i].type == kVoiceHandle)
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_mixer->pauseHandle(_handles[i].handle, false);
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}
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void Sound::stopVoice() {
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for (int i = 0; i < SOUND_HANDLES; i++)
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if (_handles[i].type == kVoiceHandle) {
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_mixer->stopHandle(_handles[i].handle);
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_handles[i].type = kFreeHandle;
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}
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}
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void Sound::stopAll() {
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stopVoice();
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stopSound();
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}
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void Sound::setVolume(int volume) {
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_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, volume);
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_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, volume);
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}
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void Sound::loadDSRFile(const char *fileName) {
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if (_dsrFileLoaded)
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unloadDSRFile();
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Common::SeekableReadStream *fileStream = _vm->res()->get(fileName);
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sprintf(_dsrFile.fileName, "%s", fileName);
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// Read header
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_dsrFile.entryCount = fileStream->readUint16LE();
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//printf("DSR has %i entries\n", _dsrFile.entryCount);
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for (int i = 0; i < _dsrFile.entryCount; i++) {
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DSREntry* newEntry = new DSREntry();
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newEntry->frequency = fileStream->readUint16LE();
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newEntry->channels = fileStream->readUint32LE();
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newEntry->compSize = fileStream->readUint32LE();
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newEntry->uncompSize = fileStream->readUint32LE();
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newEntry->offset = fileStream->readUint32LE();
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_dsrFile.dsrEntries.push_back(newEntry);
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/*
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printf("%i: ", i);
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printf("frequency: %i ", newEntry->frequency);
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printf("channels: %i ", newEntry->channels);
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printf("comp: %i ", newEntry->compSize);
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printf("uncomp: %i ", newEntry->uncompSize);
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printf("offset: %i ", newEntry->offset);
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printf("\n");
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*/
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}
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_vm->res()->toss(fileName);
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_dsrFileLoaded = true;
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}
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void Sound::unloadDSRFile() {
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if (!_dsrFileLoaded)
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return;
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for (int i = 0; i < _dsrFile.entryCount; i++) {
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_dsrFile.dsrEntries.remove_at(0);
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}
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_dsrFile.entryCount = 0;
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strcpy(_dsrFile.fileName, "");
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_dsrFileLoaded = false;
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}
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void Sound::playDSRSound(int soundIndex, int volume, bool loop) {
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if (!_dsrFileLoaded) {
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warning("DSR file not loaded, not playing sound");
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return;
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}
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if (soundIndex < 0 || soundIndex > _dsrFile.entryCount - 1) {
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warning("Invalid sound index: %i, not playing sound", soundIndex);
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return;
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}
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SndHandle *handle = getHandle();
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handle->type = kEffectHandle;
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// Get sound data
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FabDecompressor fab;
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byte *compData = new byte[_dsrFile.dsrEntries[soundIndex]->compSize];
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byte *buffer = new byte[_dsrFile.dsrEntries[soundIndex]->uncompSize];
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Common::SeekableReadStream *fileStream = _vm->res()->get(_dsrFile.fileName);
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fileStream->seek(_dsrFile.dsrEntries[soundIndex]->offset, SEEK_SET);
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fileStream->read(compData, _dsrFile.dsrEntries[soundIndex]->compSize);
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_vm->res()->toss(_dsrFile.fileName);
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fab.decompress(compData, _dsrFile.dsrEntries[soundIndex]->compSize,
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buffer, _dsrFile.dsrEntries[soundIndex]->uncompSize);
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// Play sound
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Audio::AudioStream *stream = Audio::makeLoopingAudioStream(
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Audio::makeRawStream(buffer,
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_dsrFile.dsrEntries[soundIndex]->uncompSize,
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_dsrFile.dsrEntries[soundIndex]->frequency, Audio::FLAG_UNSIGNED),
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loop ? 0 : 1);
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_mixer->playStream(Audio::Mixer::kSFXSoundType, &handle->handle, stream, -1, volume);
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/*
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// Dump the sound file
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FILE *destFile = fopen("sound.raw", "wb");
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fwrite(_dsrFile.dsrEntries[soundIndex]->data, _dsrFile.dsrEntries[soundIndex]->uncompSize, 1, destFile);
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fclose(destFile);
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*/
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}
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} // End of namespace M4
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