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-rw-r--r--engines/adl/speaker.cpp94
1 files changed, 0 insertions, 94 deletions
diff --git a/engines/adl/speaker.cpp b/engines/adl/speaker.cpp
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--- a/engines/adl/speaker.cpp
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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.
- *
- */
-
-#include "common/system.h"
-#include "common/events.h"
-
-#include "engines/engine.h"
-
-#include "audio/audiostream.h"
-#include "audio/decoders/raw.h"
-
-#include "adl/speaker.h"
-#include "adl/adl.h"
-
-namespace Adl {
-
-// Number of times to duplicate each sample
-#define SAMPLE_DUP 4
-// Bell frequency in Hz
-#define BELL_FREQ 1000
-// Sample rate
-#define SAMPLE_RATE (BELL_FREQ * SAMPLE_DUP * 2)
-// Number of waves per 0.1 seconds (bell length)
-#define BELL_WAVE_COUNT (SAMPLE_RATE / 10 / SAMPLE_DUP / 2)
-// Length of bell in samples
-#define BELL_LEN (BELL_WAVE_COUNT * SAMPLE_DUP * 2)
-// Length of silence in samples
-#define SILENCE_LEN (SAMPLE_RATE / 80)
-
-Speaker::~Speaker() {
- delete[] _bell;
- delete[] _silence;
-}
-
-Speaker::Speaker() {
- _bell = new byte[BELL_LEN];
-
- byte *buf = _bell;
- for (uint i = 0; i < BELL_WAVE_COUNT; ++i) {
- for (uint j = 0; j < SAMPLE_DUP; ++j)
- *buf++ = 0x00;
- for (uint j = 0; j < SAMPLE_DUP; ++j)
- *buf++ = 0xff;
- }
-
- _silence = new byte[SILENCE_LEN];
-
- buf = _silence;
- for (uint i = 0; i < SILENCE_LEN; ++i)
- *buf++ = 0x80;
-}
-
-void Speaker::bell(uint count) {
- Audio::QueuingAudioStream *stream = Audio::makeQueuingAudioStream(SAMPLE_RATE, false);
- Audio::SoundHandle handle;
-
- stream->queueBuffer(_bell, BELL_LEN, DisposeAfterUse::NO, Audio::FLAG_UNSIGNED);
-
- for (uint i = 1; i < count; ++i) {
- stream->queueBuffer(_silence, SILENCE_LEN, DisposeAfterUse::NO, Audio::FLAG_UNSIGNED);
- stream->queueBuffer(_bell, BELL_LEN, DisposeAfterUse::NO, Audio::FLAG_UNSIGNED);
- }
-
- stream->finish();
-
- g_system->getMixer()->playStream(Audio::Mixer::kPlainSoundType, &handle, stream);
-
- while (!g_engine->shouldQuit() && g_system->getMixer()->isSoundHandleActive(handle)) {
- Common::Event event;
- static_cast<AdlEngine *>(g_engine)->pollEvent(event);
- g_system->delayMillis(16);
- }
-}
-
-} // End of namespace Adl