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https://github.com/libretro/scummvm.git
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223794fb38
This does not change the use of defined for some NDS source files, since they seem to be (based on?) third party code.
75 lines
2.1 KiB
C++
75 lines
2.1 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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*/
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#ifdef __SYMBIAN32__
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#include "backends/mixer/symbiansdl/symbiansdl-mixer.h"
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#include "common/system.h"
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#ifdef SAMPLES_PER_SEC_8000 // the GreanSymbianMMP format cannot handle values for defines :(
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#define SAMPLES_PER_SEC 8000
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#else
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#define SAMPLES_PER_SEC 16000
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#endif
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SymbianSdlMixerManager::SymbianSdlMixerManager()
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:
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_stereoMixBuffer(0) {
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}
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SymbianSdlMixerManager::~SymbianSdlMixerManager() {
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delete[] _stereoMixBuffer;
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}
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void SymbianSdlMixerManager::startAudio() {
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// Need to create mixbuffer for stereo mix to downmix
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if (_obtained.channels != 2) {
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_stereoMixBuffer = new byte [_obtained.size * 2]; // * 2 for stereo values
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}
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SdlMixerManager::startAudio();
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}
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void SymbianSdlMixerManager::callbackHandler(byte *samples, int len) {
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assert(_mixer);
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#if defined(S60) && !defined(S60V3)
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// If not stereo then we need to downmix
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if (_obtained.channels != 2) {
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_mixer->mixCallback(_stereoMixBuffer, len * 2);
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int16 *bitmixDst = (int16 *)samples;
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int16 *bitmixSrc = (int16 *)_stereoMixBuffer;
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for (int loop = len / 2; loop >= 0; loop --) {
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*bitmixDst = (*bitmixSrc + *(bitmixSrc + 1)) >> 1;
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bitmixDst++;
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bitmixSrc += 2;
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}
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} else
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#else
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_mixer->mixCallback(samples, len);
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#endif
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}
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#endif
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