gemrb/plugins/ACMReader/ACMReader.h

   1 /* GemRB - Infinity Engine Emulator
   2  * Copyright (C) 2003 The GemRB Project
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  */
  18
  19 #ifndef ACMREADER_H
  20 #define ACMREADER_H
  21
  22 #include "SoundMgr.h"
  23
  24 #include "decoder.h"
  25 #include "general.h"
  26 #include "unpacker.h"
  27
  28 #include "System/DataStream.h"
  29
  30 #include <cstdio>
  31 #include <cstring>
  32 #include <cstdlib>
  33
  34 // IP's ACM files
  35 class ACMReader : public SoundMgr {
  36 private:
  37         int samples_left; // count of unread samples
  38         int levels, subblocks;
  39         int block_size;
  40         int* block, * values;
  41         int samples_ready;
  42         CValueUnpacker* unpacker; // ACM-stream unpacker
  43         CSubbandDecoder* decoder; // IP's subband decoder
  44
  45         int make_new_samples();
  46 public:
  47         ACMReader()
  48                 : samples_left( 0 ), block( NULL ), values( NULL ),
  49                 samples_ready( 0 ), unpacker( NULL ), decoder( NULL )
  50         {
  51         }
  52         virtual ~ACMReader()
  53         {
  54                 Close();
  55         }
  56         void Close()
  57         {
  58                 if (block) {
  59                         free(block);
  60                 }
  61                 if (unpacker) {
  62                         delete unpacker;
  63                 }
  64                 if (decoder) {
  65                         delete decoder;
  66                 }
  67         }
  68
  69         bool Open(DataStream* stream);
  70         virtual int read_samples(short* buffer, int count);
  71 };
  72
  73 #endif