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Diffstat (limited to 'engines/sci/sfx/softseq/mt32/tables.h')
| -rw-r--r-- | engines/sci/sfx/softseq/mt32/tables.h | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/engines/sci/sfx/softseq/mt32/tables.h b/engines/sci/sfx/softseq/mt32/tables.h deleted file mode 100644 index d9af5114b2..0000000000 --- a/engines/sci/sfx/softseq/mt32/tables.h +++ /dev/null @@ -1,116 +0,0 @@ -/* Copyright (c) 2003-2005 Various contributors - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - */ - -#ifndef MT32EMU_TABLES_H -#define MT32EMU_TABLES_H - -namespace MT32Emu { - -// Mathematical constants -const double DOUBLE_PI = 3.1415926535897932384626433832795; -const double DOUBLE_LN = 2.3025850929940456840179914546844; -const float FLOAT_PI = 3.1415926535897932384626433832795f; -const float FLOAT_LN = 2.3025850929940456840179914546844f; - -// Filter settings -const int FILTERGRAN = 512; - -// Amplitude of waveform generator -// FIXME: This value is the amplitude possible whilst avoiding -// overdriven values immediately after filtering when playing -// back SQ3MT.MID. Needs to be checked. -const int WGAMP = 12382; - -const int MIDDLEC = 60; -const int MIDDLEA = 69; // By this I mean "A above middle C" - -// FIXME:KG: may only need to do 12 to 108 -// 12..108 is the range allowed by note on commands, but the key can be modified by pitch keyfollow -// and adjustment for timbre pitch, so the results can be outside that range. -// Should we move it (by octave) into the 12..108 range, or keep it in 0..127 range, -// or something else altogether? -const int LOWEST_NOTE = 12; -const int HIGHEST_NOTE = 127; -const int NUM_NOTES = HIGHEST_NOTE - LOWEST_NOTE + 1; // Number of slots for note LUT - -class Synth; - -struct NoteLookup { - Bit32u div2; - Bit32u *wavTable; - Bit32s sawTable[101]; - int filtTable[2][201]; - int nfiltTable[101][101]; - Bit16s *waveforms[3]; - Bit32u waveformSize[3]; -}; - -struct KeyLookup { - Bit32s envTimeMult[5]; // For envelope time adjustment for key pressed - Bit32s envDepthMult[5]; -}; - -class Tables { - float initialisedSampleRate; - float initialisedMasterTune; - void initMT32ConstantTables(Synth *synth); - static Bit16s clampWF(Synth *synth, const char *n, float ampVal, double input); - static File *initWave(Synth *synth, NoteLookup *noteLookup, float ampsize, float div2, File *file); - bool initNotes(Synth *synth, PCMWaveEntry *pcmWaves, float rate, float tuning); - void initEnvelopes(float sampleRate); - void initFiltCoeff(float samplerate); -public: - // Constant LUTs - Bit32s tvfKeyfollowMult[217]; - Bit32s tvfVelfollowMult[128][101]; - Bit32s tvfBiasMult[15][128]; - Bit32u tvaVelfollowMult[128][101]; - Bit32s tvaBiasMult[13][128]; - Bit16s noiseBuf[MAX_SAMPLE_OUTPUT]; - Bit16s sintable[65536]; - Bit32s pitchEnvVal[16][101]; - Bit32s envTimeVelfollowMult[5][128]; - Bit32s pwVelfollowAdd[15][128]; - float resonanceFactor[31]; - Bit32u lfoShift[101][101]; - Bit32s pwFactor[101]; - Bit32s volumeMult[101]; - - // LUTs varying with sample rate - Bit32u envTime[101]; - Bit32u envDeltaMaxTime[101]; - Bit32u envDecayTime[101]; - Bit32u lfoPeriod[101]; - float filtCoeff[FILTERGRAN][31][8]; - - // Various LUTs for each note and key - NoteLookup noteLookups[NUM_NOTES]; - KeyLookup keyLookups[97]; - - Tables(); - bool init(Synth *synth, PCMWaveEntry *pcmWaves, float sampleRate, float masterTune); - File *initNote(Synth *synth, NoteLookup *noteLookup, float note, float rate, float tuning, PCMWaveEntry *pcmWaves, File *file); - void freeNotes(); -}; - -} - -#endif |