sound/softsynth/mt32/partialManager.h

   1 /* Copyright (c) 2003-2005 Various contributors
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a copy
   4  * of this software and associated documentation files (the "Software"), to
   5  * deal in the Software without restriction, including without limitation the
   6  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   7  * sell copies of the Software, and to permit persons to whom the Software is
   8  * furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice shall be included in
  11  * all copies or substantial portions of the Software.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  18  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  19  * IN THE SOFTWARE.
  20  */
  21
  22 #ifndef MT32EMU_PARTIALMANAGER_H
  23 #define MT32EMU_PARTIALMANAGER_H
  24
  25 namespace MT32Emu {
  26
  27 class Synth;
  28
  29 class PartialManager {
  30 private:
  31         Synth *synth; // Only used for sending debug output
  32
  33         Partial *partialTable[MT32EMU_MAX_PARTIALS];
  34         Bit32s partialReserveTable[MT32EMU_MAX_PARTIALS];
  35         Bit32s partialPart[9]; // The count of partials played per part
  36
  37 public:
  38
  39         PartialManager(Synth *synth);
  40         ~PartialManager();
  41         Partial *allocPartial(int partNum);
  42         unsigned int getFreePartialCount(void);
  43         bool freePartials(unsigned int needed, int partNum);
  44         unsigned int setReserve(Bit8u *rset);
  45         void deactivateAll();
  46         void ageAll();
  47         bool produceOutput(int i, Bit16s *buffer, Bit32u bufferLength);
  48         bool shouldReverb(int i);
  49         void clearAlreadyOutputed();
  50         void getPerPartPartialUsage(int usage[9]);
  51         const Partial *getPartial(unsigned int partialNum) const;
  52 };
  53
  54 }
  55
  56 #endif