Moved engines to the new engines/ directory

svn-id: r20582

1 files changed, 145 insertions, 0 deletions

diff --git a/engines/gob/sound.cpp b/engines/gob/sound.cpp
new file mode 100644
index 0000000000..51c36ef22a
--- /dev/null
+++ b/engines/gob/sound.cpp
@@ -0,0 +1,145 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2004 Ivan Dubrov
+ * Copyright (C) 2004-2006 The ScummVM project
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "gob/gob.h"
+#include "gob/global.h"
+#include "gob/sound.h"
+
+namespace Gob {
+
+void Snd::SquareWaveStream::playNote(int freq, int32 ms, uint rate) {
+	_rate = rate;
+	_periodLength = _rate / (2 * freq);
+	_periodSamples = 0;
+	_sampleValue = 6000;
+	if (ms == -1) {
+		_remainingSamples = 1;
+		_beepForever = true;
+	} else {
+		_remainingSamples = (_rate * ms) / 1000;
+		_beepForever = false;
+	}
+}
+
+int Snd::SquareWaveStream::readBuffer(int16 *buffer, const int numSamples) {
+	int samples = 0;
+
+	while (samples < numSamples && _remainingSamples > 0) {
+		*buffer++ = _sampleValue;
+		if (_periodSamples++ > _periodLength) {
+			_periodSamples = 0;
+			_sampleValue = -_sampleValue;
+		}
+		samples++;
+		if (!_beepForever)
+			_remainingSamples--;
+	}
+
+	return samples;
+}
+
+Snd::Snd(GobEngine *vm) : _vm(vm) {
+	//CleanupFuncPtr cleanupFunc;// = &snd_cleanupFuncCallback();
+	_cleanupFunc = 0;
+	for (int i = 0; i < ARRAYSIZE(_loopingSounds); i++)
+		_loopingSounds[i] = NULL;
+	_playingSound = 0;
+}
+
+void Snd::loopSounds(void) {
+	for (int i = 0; i < ARRAYSIZE(_loopingSounds); i++) {
+		SoundDesc *snd = _loopingSounds[i];
+		if (snd && !_vm->_mixer->isSoundHandleActive(snd->handle)) {
+			if (snd->repCount-- > 0) {
+				_vm->_mixer->playRaw(&snd->handle, snd->data, snd->size, snd->frequency, 0);
+			} else {
+				_loopingSounds[i] = NULL;
+			}
+		}
+	}
+}
+
+void Snd::setBlasterPort(int16 port) {return;}
+
+void Snd::speakerOn(int16 frequency, int32 length) {
+	_speakerStream.playNote(frequency, length, _vm->_mixer->getOutputRate());
+	if (!_vm->_mixer->isSoundHandleActive(_speakerHandle)) {
+		_vm->_mixer->playInputStream(Audio::Mixer::kSFXSoundType, &_speakerHandle, &_speakerStream, -1, 255, 0, false);
+	}
+}
+
+void Snd::speakerOff(void) {
+	_vm->_mixer->stopHandle(_speakerHandle);
+}
+
+void Snd::playSample(Snd::SoundDesc *sndDesc, int16 repCount, int16 frequency) {
+	assert(frequency > 0);
+
+	if (!_vm->_mixer->isSoundHandleActive(sndDesc->handle)) {
+		_vm->_mixer->playRaw(&sndDesc->handle, sndDesc->data, sndDesc->size, frequency, 0);
+	}
+
+	sndDesc->repCount = repCount - 1;
+	sndDesc->frequency = frequency;
+
+	if (repCount > 1) {
+		for (int i = 0; i < ARRAYSIZE(_loopingSounds); i++) {
+			if (!_loopingSounds[i]) {
+				_loopingSounds[i] = sndDesc;
+				return;
+			}
+		}
+		warning("Looping sounds list is full");
+	}
+}
+
+void Snd::writeAdlib(int16 port, int16 data) {
+	return;
+}
+
+Snd::SoundDesc *Snd::loadSoundData(const char *path) {
+	Snd::SoundDesc *sndDesc;
+
+	sndDesc = new Snd::SoundDesc;
+	sndDesc->size = _vm->_dataio->getDataSize(path);
+	sndDesc->data = _vm->_dataio->getData(path);
+
+	return sndDesc;
+}
+
+void Snd::freeSoundData(Snd::SoundDesc *sndDesc) {
+	_vm->_mixer->stopHandle(sndDesc->handle);
+
+	for (int i = 0; i < ARRAYSIZE(_loopingSounds); i++) {
+		if (_loopingSounds[i] == sndDesc)
+			_loopingSounds[i] = NULL;
+	}
+
+	delete[] sndDesc->data;
+	delete sndDesc;
+}
+
+}                               // End of namespace Gob
+
+
+