/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1990-2001 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#ifndef _MULTIMEDIA_AUDIOTYPEPCM_H
#define _MULTIMEDIA_AUDIOTYPEPCM_H

#include <AudioTypeConvert.h>

#ifdef __cplusplus
extern "C" {
#endif

// This is the class for a linear PCM conversion module

class AudioTypePcm : public AudioTypeConvert {
protected:
        typedef unsigned char   ulaw;
        typedef unsigned char   alaw;

        // Conversion routines inline'd in the source file
        double char2dbl(char);
        double short2dbl(short);
        double long2dbl(long);
        long dbl2long(double, long);

        void char2short(char *&, short *&);
        void char2long(char *&, long *&);
        void char2float(char *&, float *&);
        void char2double(char *&, double *&);
        void char2ulaw(char *&, ulaw *&);
        void char2alaw(char *&, alaw *&);

        void short2char(short *&, char *&);
        void short2long(short *&, long *&);
        void short2float(short *&, float *&);
        void short2double(short *&, double *&);
        void short2ulaw(short *&, ulaw *&);
        void short2alaw(short *&, alaw *&);

        void long2char(long *&, char *&);
        void long2short(long *&, short *&);
        void long2float(long *&, float *&);
        void long2double(long *&, double *&);
        void long2ulaw(long *&, ulaw *&);
        void long2alaw(long *&, alaw *&);

        void float2char(float *&, char *&);
        void float2short(float *&, short *&);
        void float2long(float *&, long *&);
        void float2double(float *&, double *&);
        void float2ulaw(float *&, ulaw *&);
        void float2alaw(float *&, alaw *&);

        void double2char(double *&, char *&);
        void double2short(double *&, short *&);
        void double2long(double *&, long *&);
        void double2float(double *&, float *&);
        void double2ulaw(double *&, ulaw *&);
        void double2alaw(double *&, alaw *&);

        void ulaw2char(ulaw *&, char *&);
        void ulaw2short(ulaw*&, short *&);
        void ulaw2long(ulaw*&, long *&);
        void ulaw2float(ulaw *&, float *&);
        void ulaw2double(ulaw *&, double *&);
        void ulaw2alaw(ulaw *&, alaw *&);

        void alaw2ulaw(alaw *&, ulaw *&);
        void alaw2char(alaw *&, char *&);
        void alaw2short(alaw *&, short *&);
        void alaw2long(alaw *&, long *&);
        void alaw2float(alaw *&, float *&);
        void alaw2double(alaw *&, double *&);

public:
        AudioTypePcm();                                 // Constructor

        // Class AudioTypeConvert methods specialized here

        // TRUE if conversion ok
        virtual Boolean CanConvert(
            AudioHdr h) const;                  // type to check against

        // Convert buffer to the specified type
        // Either the input or output type must be handled by this class

        // Convert to new type
        virtual AudioError Convert(
            AudioBuffer*& inbuf,                // data buffer to process
            AudioHdr outhdr);                   // target header

        virtual AudioError Flush(AudioBuffer*& buf);
};

#ifdef __cplusplus
}
#endif

#endif /* !_MULTIMEDIA_AUDIOTYPEPCM_H */