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authorFilippos Karapetis2013-11-01 06:57:20 +0200
committerFilippos Karapetis2013-11-01 06:57:53 +0200
commit651bf899399de2b5c2d8e62a5bb4964b037950d2 (patch)
tree103dfc3e6677e7d5c26e13e8866648782f226247 /engines/scumm/player_mod.cpp
parent37d4316a4014970171dfea8fc19f8c9e978e9102 (diff)
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SCUMM: Move all players to a separate "player" directory
There are 34 player .cpp/.h player files, so they have been placed in their own directory, to logically separate them from the rest of the engine
Diffstat (limited to 'engines/scumm/player_mod.cpp')
-rw-r--r--engines/scumm/player_mod.cpp223
1 files changed, 0 insertions, 223 deletions
diff --git a/engines/scumm/player_mod.cpp b/engines/scumm/player_mod.cpp
deleted file mode 100644
index 6411f0a17a..0000000000
--- a/engines/scumm/player_mod.cpp
+++ /dev/null
@@ -1,223 +0,0 @@
-/* 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 "scumm/player_mod.h"
-#include "audio/mixer.h"
-#include "audio/rate.h"
-#include "audio/decoders/raw.h"
-
-namespace Scumm {
-
-Player_MOD::Player_MOD(Audio::Mixer *mixer)
- : _mixer(mixer), _sampleRate(mixer->getOutputRate()) {
- int i;
- _mixamt = 0;
- _mixpos = 0;
-
- for (i = 0; i < MOD_MAXCHANS; i++) {
- _channels[i].id = 0;
- _channels[i].vol = 0;
- _channels[i].freq = 0;
- _channels[i].input = NULL;
- _channels[i].ctr = 0;
- _channels[i].pos = 0;
- }
-
- _playproc = NULL;
- _playparam = NULL;
-
- _mixer->playStream(Audio::Mixer::kPlainSoundType, &_soundHandle, this, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO, true);
-}
-
-Player_MOD::~Player_MOD() {
- _mixer->stopHandle(_soundHandle);
- for (int i = 0; i < MOD_MAXCHANS; i++) {
- if (!_channels[i].id)
- continue;
- delete _channels[i].input;
- }
-}
-
-void Player_MOD::setMusicVolume(int vol) {
- _maxvol = vol;
-}
-
-void Player_MOD::setUpdateProc(ModUpdateProc *proc, void *param, int freq) {
- _playproc = proc;
- _playparam = param;
- _mixamt = _sampleRate / freq;
-}
-void Player_MOD::clearUpdateProc() {
- _playproc = NULL;
- _playparam = NULL;
- _mixamt = 0;
-}
-
-void Player_MOD::startChannel(int id, void *data, int size, int rate, uint8 vol, int loopStart, int loopEnd, int8 pan) {
- int i;
- if (id == 0)
- error("player_mod - attempted to start channel id 0");
-
- for (i = 0; i < MOD_MAXCHANS; i++) {
- if (!_channels[i].id)
- break;
- }
- if (i == MOD_MAXCHANS) {
- warning("player_mod - too many music channels playing (%i max)",MOD_MAXCHANS);
- return;
- }
- _channels[i].id = id;
- _channels[i].vol = vol;
- _channels[i].pan = pan;
- _channels[i].freq = rate;
- _channels[i].ctr = 0;
-
- Audio::SeekableAudioStream *stream = Audio::makeRawStream((const byte *)data, size, rate, 0);
- if (loopStart != loopEnd) {
- _channels[i].input = new Audio::SubLoopingAudioStream(stream, 0, Audio::Timestamp(0, loopStart, rate), Audio::Timestamp(0, loopEnd, rate));
- } else {
- _channels[i].input = stream;
- }
-
- // read the first sample
- _channels[i].input->readBuffer(&_channels[i].pos, 1);
-}
-
-void Player_MOD::stopChannel(int id) {
- if (id == 0)
- error("player_mod - attempted to stop channel id 0");
- for (int i = 0; i < MOD_MAXCHANS; i++) {
- if (_channels[i].id == id) {
- delete _channels[i].input;
- _channels[i].input = NULL;
- _channels[i].id = 0;
- _channels[i].vol = 0;
- _channels[i].freq = 0;
- _channels[i].ctr = 0;
- _channels[i].pos = 0;
- }
- }
-}
-void Player_MOD::setChannelVol(int id, uint8 vol) {
- if (id == 0)
- error("player_mod - attempted to set volume for channel id 0");
- for (int i = 0; i < MOD_MAXCHANS; i++) {
- if (_channels[i].id == id) {
- _channels[i].vol = vol;
- break;
- }
- }
-}
-
-void Player_MOD::setChannelPan(int id, int8 pan) {
- if (id == 0)
- error("player_mod - attempted to set pan for channel id 0");
- for (int i = 0; i < MOD_MAXCHANS; i++) {
- if (_channels[i].id == id) {
- _channels[i].pan = pan;
- break;
- }
- }
-}
-
-void Player_MOD::setChannelFreq(int id, int freq) {
- if (id == 0)
- error("player_mod - attempted to set frequency for channel id 0");
- for (int i = 0; i < MOD_MAXCHANS; i++) {
- if (_channels[i].id == id) {
- if (freq > 31400) // this is about as high as WinUAE goes
- freq = 31400; // can't easily verify on my own Amiga
- _channels[i].freq = freq;
- break;
- }
- }
-}
-
-void Player_MOD::do_mix(int16 *data, uint len) {
- int i;
- int dpos = 0;
- uint dlen = 0;
- memset(data, 0, 2 * len * sizeof(int16));
- while (len) {
- if (_playproc) {
- dlen = _mixamt - _mixpos;
- if (!_mixpos)
- _playproc(_playparam);
- if (dlen <= len) {
- _mixpos = 0;
- len -= dlen;
- } else {
- _mixpos = len;
- dlen = len;
- len = 0;
- }
- } else {
- dlen = len;
- len = 0;
- }
- for (i = 0; i < MOD_MAXCHANS; i++) {
- if (_channels[i].id) {
- Audio::st_volume_t vol_l = (127 - _channels[i].pan) * _channels[i].vol / 127;
- Audio::st_volume_t vol_r = (127 + _channels[i].pan) * _channels[i].vol / 127;
- for (uint j = 0; j < dlen; j++) {
- // simple linear resample, unbuffered
- int delta = (uint32)(_channels[i].freq * 0x10000) / _sampleRate;
- uint16 cfrac = ~_channels[i].ctr & 0xFFFF;
- if (_channels[i].ctr + delta < 0x10000)
- cfrac = delta;
- _channels[i].ctr += delta;
- int32 cpos = _channels[i].pos * cfrac / 0x10000;
- while (_channels[i].ctr >= 0x10000) {
- if (_channels[i].input->readBuffer(&_channels[i].pos, 1) != 1) { // out of data
- stopChannel(_channels[i].id);
- goto skipchan; // exit 2 loops at once
- }
- _channels[i].ctr -= 0x10000;
- if (_channels[i].ctr > 0x10000)
- cpos += _channels[i].pos;
- else
- cpos += (int32)(_channels[i].pos * (_channels[i].ctr & 0xFFFF)) / 0x10000;
- }
- int16 pos = 0;
- // if too many samples play in a row, the calculation below will overflow and clip
- // so try and split it up into pieces it can manage comfortably
- while (cpos < -0x8000) {
- pos -= 0x80000000 / delta;
- cpos += 0x8000;
- }
- while (cpos > 0x7FFF) {
- pos += 0x7FFF0000 / delta;
- cpos -= 0x7FFF;
- }
- pos += cpos * 0x10000 / delta;
- Audio::clampedAdd(data[(dpos + j) * 2 + 0], pos * vol_l / Audio::Mixer::kMaxMixerVolume);
- Audio::clampedAdd(data[(dpos + j) * 2 + 1], pos * vol_r / Audio::Mixer::kMaxMixerVolume);
- }
- }
-skipchan: ; // channel ran out of data
- }
- dpos += dlen;
- }
-}
-
-} // End of namespace Scumm