{========================================================================}
{=                (c) 1995-98 SwiftSoft Ronald Dittrich                 =}
{========================================================================}
{=                          All Rights Reserved                         =}
{========================================================================}
{=  D 01099 Dresden             = Tel.: +0351-8012255                   =}
{=  Loewenstr.7a                = info@swiftsoft.de                     =}
{========================================================================}
{=  Actual versions on http://www.swiftsoft.de/mmtools.html             =}
{========================================================================}
{=  This code is for reference purposes only and may not be copied or   =}
{=  distributed in any format electronic or otherwise except one copy   =}
{=  for backup purposes.                                                =}
{=                                                                      =}
{=  No Delphi Component Kit or Component individually or in a collection=}
{=  subclassed or otherwise from the code in this unit, or associated   =}
{=  .pas, .dfm, .dcu, .asm or .obj files may be sold or distributed     =}
{=  without express permission from SwiftSoft.                          =}
{=                                                                      =}
{=  For more licence informations please refer to the associated        =}
{=  HelpFile.                                                           =}
{========================================================================}
{=  $Date: 20.01.1998 - 18:00:00 $                                      =}
{========================================================================}
unit MMWDisp;

{$I COMPILER.INC}

{.$DEFINE _MMDEBUG}

interface

uses
{$IFDEF WIN32}
  Windows,
{$ELSE}
  WinTypes,
  WinProcs,
{$ENDIF}
  SysUtils,
  Classes,
  Graphics,
  Controls,
  Forms,
  MMSystem,
  MMUtils,
  MMPCMSup,
  MMACMSup,
  MMWaveIO,
  MMMath,
  MMRegs,
  MMMulDiv,
  MMWave,
  MMDIBCv,
  MMFade
  {$IFDEF _MMDEBUG}
  ,MMDebug
  {$ENDIF};

const
   MinMS: integer = 1; { minimal resolution in datafile in msec }

type
    PMMDisplayRec = ^TMMDisplayRec;
    TMMDisplayRec = record
       LeftMin : SmallInt;
       RightMin: SmallInt;
       LeftMax : SmallInt;
       RightMax: SmallInt;
    end;
    PMMDisplayData = ^TMMDisplayData;
    TMMDisplayData = array[0..0] of TMMDisplayRec;

    TMMGenerateEvent = procedure(Sender: TObject; Percent: integer; var Cancel: Boolean) of object;

procedure AddSample(Wave: TMMWave);
procedure RemoveSample(Wave: TMMWave; DeleteData: Boolean);

function  CheckDisplayData(Wave: TMMWave): Boolean;

procedure CreateDisplayData(Wave: TMMWave; Callback: TMMGenerateEvent);

procedure GenerateDisplayData(Wave: TMMWave; Callback: TMMGenerateEvent);

function  ZoomData(Wave: TMMWave; PixelMin, PixelMax: integer;
                   WaveVirtPixMin, WaveVirtPixMax: Longint;
                   Data: PMMDisplayData): Boolean;

procedure VolumeData(MinS, MaxS, Pixels: integer;
                     FadeList: TMMFadeList; Data: PMMDisplayData);

procedure DisplayData(Canvas: TCanvas; aRect: TRect; Data: PMMDisplayData;
                      Stereo: Boolean; Mode: integer; Clr: TColor);

procedure DIB_DisplayData(DIBCanvas: TMMDIBCanvas; aRect: TRect; Data: PMMDisplayData;
                          Stereo: Boolean; Mode: integer; Clr: TColor);

procedure DisplayKurve(Canvas: TCanvas; MinS, MaxS: longint;
                       aRect: TRect; FadeList: TMMFadeList; Clr: TColor);

procedure DIB_DisplayKurve(Canvas: TMMDIBCanvas; MinS, MaxS: longint;
                           aRect: TRect; FadeList: TMMFadeList;
                           Size: integer; LineClr, FrameClr, FrameSelectedClr, BackClr, BackSelectClr: TColor);

implementation