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author | Jamieson Christian | 2003-05-21 20:23:01 +0000 |
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committer | Jamieson Christian | 2003-05-21 20:23:01 +0000 |
commit | 38fc644cf69a99c216599e337ae4855f27666be9 (patch) | |
tree | 9b63e000922cca12cbc9e77e335aca91c5677900 /scumm | |
parent | 2f01855ed5e110299c03e8d36a3485cc53f5727f (diff) | |
download | scummvm-rg350-38fc644cf69a99c216599e337ae4855f27666be9.tar.gz scummvm-rg350-38fc644cf69a99c216599e337ae4855f27666be9.tar.bz2 scummvm-rg350-38fc644cf69a99c216599e337ae4855f27666be9.zip |
Replaced VolumeFader with more generic ParameterFader
svn-id: r7803
Diffstat (limited to 'scumm')
-rw-r--r-- | scumm/imuse.cpp | 237 |
1 files changed, 82 insertions, 155 deletions
diff --git a/scumm/imuse.cpp b/scumm/imuse.cpp index 62c500b33e..e2e3194e6b 100644 --- a/scumm/imuse.cpp +++ b/scumm/imuse.cpp @@ -65,12 +65,21 @@ struct HookDatas { int set(byte cls, byte value, byte chan); }; -struct ParameterFade { +struct ParameterFader { + enum { + pfVolume = 1, + pfTranspose = 3, + pfSpeed = 4 + }; + int param; int start; int end; uint32 total_time; uint32 current_time; + + ParameterFader() { param = 0; } + void init() { param = 0; } }; struct DeferredCommand { @@ -79,27 +88,6 @@ struct DeferredCommand { int a, b, c, d, e, f; }; -struct VolumeFader { - Player *player; - bool active; - byte curvol; - uint16 speed_lo_max, num_steps; - int8 speed_hi; - int8 direction; - int8 speed_lo; - uint16 speed_lo_counter; - - void initialize() { - active = false; - } - void on_timer(bool probe); - byte fading_to(); - - VolumeFader() { - memset(this,0,sizeof(VolumeFader)); - } -}; - struct Player { IMuseInternal *_se; MidiDriver *_midi; @@ -137,8 +125,7 @@ struct Player { bool _abort; HookDatas _hook; - ParameterFade _parameterFades[4]; - VolumeFader _volumeFader; + ParameterFader _parameterFaders[4]; bool _mt32emulate; bool _isGM; @@ -173,7 +160,7 @@ struct Player { void play_active_notes(); void cancel_volume_fade(); - void addParameterTransition (int param, int target, int time); + int addParameterFader (int param, int target, int time); void transitionParameters(); static void decode_sysex_bytes(byte *src, byte *dst, int len); @@ -194,7 +181,6 @@ struct Player { int scan(uint totrack, uint tobeat, uint totick); int query_param(int param); - int fade_vol(byte vol, int time); bool is_fading_out(); void sequencer_timer(); @@ -758,7 +744,6 @@ void IMuseInternal::init_players() { for (i = ARRAYSIZE(_players); i != 0; i--, player++) { player->_active = false; player->_se = this; - player->_volumeFader.initialize(); } } @@ -940,63 +925,6 @@ void IMuseInternal::expire_sustain_notes (MidiDriver *midi) { } } -void VolumeFader::on_timer(bool probe) { - byte newvol; - - newvol = curvol + speed_hi; - speed_lo_counter += speed_lo; - - if (speed_lo_counter >= speed_lo_max) { - speed_lo_counter -= speed_lo_max; - newvol += direction; - } - - if (curvol != newvol) { - curvol = newvol; - if (!newvol) { - if (!probe) - player->clear(); - active = false; - return; - } - if (!probe) - player->set_vol(newvol); - } - - if (!--num_steps) { - active = false; - } -} - -byte VolumeFader::fading_to() { - byte newvol; - byte orig_curvol; - uint16 orig_speed_lo_counter, orig_num_steps; - - if (!active) - return 127; - - // It would be so much easier to just store the fade-to volume in a - // variable, but then we'd have to break savegame compatibility. So - // instead we do a "dry run" fade. - - orig_speed_lo_counter = speed_lo_counter; - orig_num_steps = num_steps; - orig_curvol = curvol; - - while (active) - on_timer(true); - - active = true; - newvol = curvol; - - speed_lo_counter = orig_speed_lo_counter; - num_steps = orig_num_steps; - curvol = orig_curvol; - - return newvol; -} - int IMuseInternal::getSoundStatus(int sound) { int i; Player *player; @@ -1281,8 +1209,8 @@ int32 IMuseInternal::doCommand(int a, int b, int c, int d, int e, int f, int g, // Sam and Max: Parameter transition player = this->get_player_byid (b); if (player) - player->addParameterTransition (d, e, f); - return 0; + return player->addParameterFader (d, e, f); + return -1; case 15: // Sam & Max: Set hook for a "maybe" jump @@ -1397,7 +1325,7 @@ int32 IMuseInternal::doCommand(int a, int b, int c, int d, int e, int f, int g, case 12: return player->_hook.set(c, d, e); case 13: - return player->fade_vol(c, d); + return player->addParameterFader (ParameterFader::pfVolume, c, d); case 14: return enqueue_trigger(b, c); case 15: @@ -1724,37 +1652,16 @@ void IMuseInternal::pause(bool paused) { // //////////////////////////////////////// -int Player::fade_vol(byte vol, int time) { - VolumeFader *vf; +bool Player::is_fading_out() { int i; - - cancel_volume_fade(); - if (time == 0) { - set_vol(vol); - return 0; - } - - vf = &_volumeFader; - - vf->active = true; - vf->player = this; - vf->num_steps = vf->speed_lo_max = time; - vf->curvol = _volume; - i = (vol - vf->curvol); - vf->speed_hi = i / time; - if (i < 0) { - i = -i; - vf->direction = -1; - } else { - vf->direction = 1; + for (i = 0; i < ARRAYSIZE(_parameterFaders); ++i) { + if (_parameterFaders[i].param == ParameterFader::pfVolume && + _parameterFaders[i].end == 0) + { + return true; + } } - vf->speed_lo = i % time; - vf->speed_lo_counter = 0; - return 0; -} - -bool Player::is_fading_out() { - return (_volumeFader.active && _volumeFader.direction < 0 && _volumeFader.fading_to() == 0); + return false; } void Player::clear() { @@ -1769,6 +1676,7 @@ void Player::clear() { bool Player::startSound (int sound, MidiDriver *midi) { void *mdhd; + int i; mdhd = _se->findTag(sound, MDHD_TAG, 0); if (mdhd == NULL) { @@ -1789,13 +1697,14 @@ bool Player::startSound (int sound, MidiDriver *midi) { _priority = 0x80; _volume = 0x7F; _vol_chan = 0xFFFF; - _vol_eff = (_se->get_channel_volume(0xFFFF) << 7) >> 7; - _pan = 0; _transpose = 0; _detune = 0; + for (i = 0; i < ARRAYSIZE(_parameterFaders); ++i) + _parameterFaders[i].init(); + hook_clear(); if (start_seq_sound(sound) != 0) { _active = false; @@ -1861,7 +1770,13 @@ void Player::set_tempo(uint32 b) { } void Player::cancel_volume_fade() { - _volumeFader.active = false; + int i; + for (i = 0; i < ARRAYSIZE(_parameterFaders); ++i) { + if (_parameterFaders[i].param == ParameterFader::pfVolume) { + _parameterFaders[i].param = 0; + break; + } + } } void Player::uninit_parts() { @@ -2683,8 +2598,6 @@ int Player::scan(uint totrack, uint tobeat, uint totick) { uint32 curpos, topos; uint32 pos; -// assert(totrack >= 0 && tobeat >= 0 && totick >= 0); // Those are all unsigned numbers anyway... - if (!_active) return -1; @@ -2847,6 +2760,12 @@ void Player::sequencer_timer() { // that are occuring. transitionParameters(); + // Since the volume parameter can cause + // the player to be deactivated, check + // to make sure we're still active. + if (!_active) + return; + counter = _timer_counter + _timer_speed; _timer_counter = counter & 0xFFFF; _cur_pos += counter >> 16; @@ -2878,10 +2797,6 @@ void Player::sequencer_timer() { } } } - - // Now handle any volume fades - if (_volumeFader.active) - _volumeFader.on_timer (false); } void IMuseInternal::handleDeferredCommands (MidiDriver *midi) { @@ -2926,16 +2841,16 @@ void IMuseInternal::addDeferredCommand (int time, int a, int b, int c, int d, in // "time" is referenced as hundredths of a second. // IS THAT CORRECT?? // We convert it to microseconds before prceeding -void Player::addParameterTransition (int param, int target, int time) { +int Player::addParameterFader (int param, int target, int time) { int start; switch (param) { - case 1: + case ParameterFader::pfVolume: // Volume fades are handled differently. - fade_vol (target, time); - return; + start = _volume; + break; - case 3: + case ParameterFader::pfTranspose: // FIXME: Is this transpose? And what's the scale? // It's set to fade to -2400 in the tunnel of love. warning ("parameterTransition(3) outside Tunnel of Love?"); @@ -2943,7 +2858,7 @@ void Player::addParameterTransition (int param, int target, int time) { target /= 200; break; - case 4: + case ParameterFader::pfSpeed: // FIXME: Is the speed from 0-100? // Right now I convert it to 0-128. start = _speed; @@ -2953,17 +2868,17 @@ void Player::addParameterTransition (int param, int target, int time) { case 127: // FIXME: This MIGHT fade ALL supported parameters, // but I'm not sure. - return; + return 0; default: - warning ("Unknown transition parameter %d", param); - return; + warning ("Player::addParameterFader(): Unknown parameter %d", param); + return 0; // Should be -1, but we'll let the script think it worked. } - ParameterFade *ptr = &_parameterFades[0]; - ParameterFade *best = 0; + ParameterFader *ptr = &_parameterFaders[0]; + ParameterFader *best = 0; int i; - for (i = ARRAYSIZE(_parameterFades); i; --i, ++ptr) { + for (i = ARRAYSIZE(_parameterFaders); i; --i, ++ptr) { if (ptr->param == param) { best = ptr; start = ptr->end; @@ -2979,16 +2894,21 @@ void Player::addParameterTransition (int param, int target, int time) { best->end = target; best->total_time = (uint32) time * 10000; best->current_time = 0; + } else { + warning ("IMuse Player %d: Out of parameter faders", _id); + return -1; } + + return 0; } void Player::transitionParameters() { uint32 advance = _midi->getBaseTempo() / 500; int value; - ParameterFade *ptr = &_parameterFades[0]; + ParameterFader *ptr = &_parameterFaders[0]; int i; - for (i = ARRAYSIZE(_parameterFades); i; --i, ++ptr) { + for (i = ARRAYSIZE(_parameterFaders); i; --i, ++ptr) { if (!ptr->param) continue; @@ -2998,12 +2918,21 @@ void Player::transitionParameters() { value = (int32) ptr->start + (int32) (ptr->end - ptr->start) * (int32) ptr->current_time / (int32) ptr->total_time; switch (ptr->param) { - case 4: + case ParameterFader::pfVolume: + // Volume. + if (!value) { + clear(); + return; + } + set_vol ((byte) value); + break; + + case ParameterFader::pfSpeed: // Speed. set_speed ((byte) value); break; - case 3: + case ParameterFader::pfTranspose: // FIXME: Is this really transpose? set_transpose (0, value); break; @@ -3098,15 +3027,15 @@ int IMuseInternal::save_or_load(Serializer *ser, Scumm *scumm) { }; const SaveLoadEntry volumeFaderEntries[] = { - MKREF(VolumeFader, player, TYPE_PLAYER, VER_V8), - MKLINE(VolumeFader, active, sleUint8, VER_V8), - MKLINE(VolumeFader, curvol, sleUint8, VER_V8), - MKLINE(VolumeFader, speed_lo_max, sleUint16, VER_V8), - MKLINE(VolumeFader, num_steps, sleUint16, VER_V8), - MKLINE(VolumeFader, speed_hi, sleInt8, VER_V8), - MKLINE(VolumeFader, direction, sleInt8, VER_V8), - MKLINE(VolumeFader, speed_lo, sleInt8, VER_V8), - MKLINE(VolumeFader, speed_lo_counter, sleUint16, VER_V8), + MK_OBSOLETE_REF(VolumeFader, player, TYPE_PLAYER, VER_V8, VER_V16), + MK_OBSOLETE(VolumeFader, active, sleUint8, VER_V8, VER_V16), + MK_OBSOLETE(VolumeFader, curvol, sleUint8, VER_V8, VER_V16), + MK_OBSOLETE(VolumeFader, speed_lo_max, sleUint16, VER_V8, VER_V16), + MK_OBSOLETE(VolumeFader, num_steps, sleUint16, VER_V8, VER_V16), + MK_OBSOLETE(VolumeFader, speed_hi, sleInt8, VER_V8, VER_V16), + MK_OBSOLETE(VolumeFader, direction, sleInt8, VER_V8, VER_V16), + MK_OBSOLETE(VolumeFader, speed_lo, sleInt8, VER_V8, VER_V16), + MK_OBSOLETE(VolumeFader, speed_lo_counter, sleUint16, VER_V8, VER_V16), MKEND() }; @@ -3163,13 +3092,11 @@ int IMuseInternal::save_or_load(Serializer *ser, Scumm *scumm) { } } - // Volume faders used to be managed by IMuseInternal, but - // they are now maintained by each individual player. + // VolumeFader has been replaced with the more generic ParameterFader. { int i; - for (i = 0; i < ARRAYSIZE(_players); ++i) { - ser->saveLoadEntries (&_players[i]._volumeFader, volumeFaderEntries); - } + for (i = 0; i < 8; ++i) + ser->saveLoadEntries (0, volumeFaderEntries); } if (!ser->isSaving()) { |