1 files changed, 257 insertions, 0 deletions
diff --git a/engines/tinsel/sound.cpp b/engines/tinsel/sound.cpp
new file mode 100644
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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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ * sound functionality
+ */
+
+#include "tinsel/sound.h"
+
+#include "tinsel/dw.h"
+#include "tinsel/config.h"
+#include "tinsel/music.h"
+#include "tinsel/strres.h"
+#include "tinsel/tinsel.h"
+
+#include "common/endian.h"
+#include "common/file.h"
+#include "common/system.h"
+
+#include "sound/mixer.h"
+#include "sound/audiocd.h"
+
+namespace Tinsel {
+
+//--------------------------- General data ----------------------------------
+
+// get set when music/sample driver is installed
+static bool bInstalled = false;
+
+SoundManager::SoundManager(TinselEngine *vm) :
+	//_vm(vm),	// TODO: Enable this once global _vm var is gone
+	_sampleIndex(0), _sampleIndexLen(0) {
+}
+
+SoundManager::~SoundManager() {
+	free(_sampleIndex);
+}
+
+/**
+ * Plays the specified sample through the sound driver.
+ * @param id			Identifier of sample to be played
+ * @param type			type of sound (voice or sfx)
+ * @param handle		sound handle
+ */
+bool SoundManager::playSample(int id, Audio::Mixer::SoundType type, Audio::SoundHandle *handle) {
+	// Floppy version has no sample file
+	if (_vm->getFeatures() & GF_FLOPPY)
+		return false;
+
+	// no sample driver?
+	if (!_vm->_mixer->isReady())
+		return false;
+
+	// stop any currently playing sample
+	_vm->_mixer->stopHandle(_handle);
+
+	// make sure id is in range
+	assert(id > 0 && id < _sampleIndexLen);
+
+	// get file offset for this sample
+	uint32 dwSampleIndex = _sampleIndex[id];
+	
+	// move to correct position in the sample file
+	_sampleStream.seek(dwSampleIndex);
+	if (_sampleStream.ioFailed() || _sampleStream.pos() != dwSampleIndex)
+		error("File %s is corrupt", SAMPLE_FILE);
+
+	// read the length of the sample
+	uint32 sampleLen = _sampleStream.readUint32LE();
+	if (_sampleStream.ioFailed())
+		error("File %s is corrupt", SAMPLE_FILE);
+
+	// allocate a buffer
+	void *sampleBuf = malloc(sampleLen);
+	assert(sampleBuf);
+
+	// read all of the sample
+	if (_sampleStream.read(sampleBuf, sampleLen) != sampleLen)
+		error("File %s is corrupt", SAMPLE_FILE);
+
+	// FIXME: Should set this in a different place ;)
+	_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, volSound);
+	//_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, soundVolumeMusic);
+	_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, volVoice);
+
+
+	// play it
+	_vm->_mixer->playRaw(type, &_handle, sampleBuf, sampleLen, 22050,
+						 Audio::Mixer::FLAG_AUTOFREE | Audio::Mixer::FLAG_UNSIGNED);
+
+	if (handle)
+		*handle = _handle;
+
+	return true;
+}
+
+/**
+ * Returns TRUE if there is a sample for the specified sample identifier.
+ * @param id			Identifier of sample to be checked
+ */
+bool SoundManager::sampleExists(int id) {
+	if (_vm->_mixer->isReady()) 	{
+		// make sure id is in range
+		if (id > 0 && id < _sampleIndexLen) {
+			// check for a sample index
+			if (_sampleIndex[id])
+				return true;
+		}
+	}
+
+	// no sample driver or no sample
+	return false;
+}
+
+/**
+ * Returns true if a sample is currently playing.
+ */
+bool SoundManager::sampleIsPlaying(void) {
+	return _vm->_mixer->isSoundHandleActive(_handle);
+}
+
+/**
+ * Stops any currently playing sample.
+ */
+void SoundManager::stopAllSamples(void) {
+	// stop currently playing sample
+	_vm->_mixer->stopHandle(_handle);
+}
+
+/**
+ * Opens and inits all sound sample files.
+ */
+void SoundManager::openSampleFiles(void) {
+	// Floppy and demo versions have no sample files
+	if (_vm->getFeatures() & GF_FLOPPY || _vm->getFeatures() & GF_DEMO)
+		return;
+
+	Common::File f;
+
+	if (_sampleIndex)
+		// already allocated
+		return;
+
+	// open sample index file in binary mode
+	if (f.open(SAMPLE_INDEX)) 	{
+		// get length of index file
+		f.seek(0, SEEK_END);		// move to end of file
+		_sampleIndexLen = f.pos();	// get file pointer
+		f.seek(0, SEEK_SET);		// back to beginning
+
+		if (_sampleIndex == NULL) {
+			// allocate a buffer for the indices
+			_sampleIndex = (uint32 *)malloc(_sampleIndexLen);
+
+			// make sure memory allocated
+			if (_sampleIndex == NULL) {
+				// disable samples if cannot alloc buffer for indices
+				// TODO: Disabled sound if we can't load the sample index?
+				return;
+			}
+		}
+
+		// load data
+		if (f.read(_sampleIndex, _sampleIndexLen) != (uint32)_sampleIndexLen)
+			// file must be corrupt if we get to here
+			error("File %s is corrupt", SAMPLE_FILE);
+
+#ifdef SCUMM_BIG_ENDIAN
+		// Convert all ids from LE to native format
+		for (uint i = 0; i < _sampleIndexLen / sizeof(uint32); ++i) {
+			_sampleIndex[i] = READ_LE_UINT32(_sampleIndex + i);
+		}
+#endif
+
+		// close the file
+		f.close();
+
+		// convert file size to size in DWORDs
+		_sampleIndexLen /= sizeof(uint32);
+	} else
+		error("Cannot find file %s", SAMPLE_INDEX);
+
+	// open sample file in binary mode
+	if (!_sampleStream.open(SAMPLE_FILE))
+		error("Cannot find file %s", SAMPLE_FILE);
+
+/*
+	// gen length of the largest sample
+	sampleBuffer.size = _sampleStream.readUint32LE();
+	if (_sampleStream.ioFailed())
+		error("File %s is corrupt", SAMPLE_FILE);
+*/
+}
+
+/**
+ * Initialises the sound driver.
+ */
+
+bool SoundInit(void) {
+	if (!bInstalled) {
+//		if (mDriver != NULL) {
+		if (true) {		// TODO: Check that a MIDI music output device is available
+			// open MIDI files
+			OpenMidiFiles();
+		}
+
+		if (_vm->_mixer->isReady()) {
+			// open sample files
+			_vm->_sound->openSampleFiles();
+		}
+		bInstalled = true;
+		return true;
+	} else {
+		// already installed
+		return false;
+	}
+}
+
+
+/**
+ * De-initialises the sound driver.
+ */
+
+bool SoundDeinit(void) {
+	if (bInstalled) {
+		bInstalled = false;
+		AudioCD.stop();
+		StopMidi();
+		_vm->_sound->stopAllSamples();
+		DeleteMidiBuffer();
+		return true;
+	} else {
+		// not installed
+		return false;
+	}
+}
+
+} // end of namespace Tinsel