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 <stdio.h>
  23 #include <string.h>
  24 #include <stdlib.h>
  25 #include "unpacker.h"
  26 #include "decoder.h"
  27 #include "general.h"
  28 #include "DataStream.h"
  29 #include "SoundMgr.h"
  30
  31 // IP's ACM files
  32 class ACMReader : public SoundMgr {
  33 private:
  34         int samples_left; // count of unread samples
  35         int levels, subblocks;
  36         int block_size;
  37         int* block, * values;
  38         int samples_ready;
  39         CValueUnpacker* unpacker; // ACM-stream unpacker
  40         CSubbandDecoder* decoder; // IP's subband decoder
  41
  42         int make_new_samples();
  43 public:
  44         ACMReader()
  45                 : samples_left( 0 ), block( NULL ), values( NULL ),
  46                 samples_ready( 0 ), unpacker( NULL ), decoder( NULL )
  47         {
  48         }
  49         virtual ~ACMReader()
  50         {
  51                 Close();
  52         }
  53         void Close()
  54         {
  55                 if (block) {
  56                         free(block);
  57                 }
  58                 if (unpacker) {
  59                         delete unpacker;
  60                 }
  61                 if (decoder) {
  62                         delete decoder;
  63                 }
  64         }
  65
  66         bool Open(DataStream* stream);
  67         virtual int read_samples(short* buffer, int count);
  68 };
  69
  70 #endif