/*

    File:       ImageCompressionUtilities.h

    Description: Include file for ImageCompressionUtilities.c

    Author:     QuickTime team

    Copyright:  © Copyright 1999 Apple Computer, Inc. All rights reserved.

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                Software may be incorporated.

                The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO

                WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

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                PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

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    Change History (most recent first):

       <1>      08/30/00    srk     Carbonization

*/

#ifndef _IMAGECOMPRESSIONUTILITIES_

#define _IMAGECOMPRESSIONUTILITIES_

#ifndef __MOVIES__

#include <Movies.h>

#endif

// _____________________ Image Compression Utilities _____________________ //

// Given a QuickDraw picture, extract QuickTime compressed image data and description, if any

OSErr ExtractCompressData( PicHandle thePict, Handle *dataOut, ImageDescriptionHandle *idh );

// Utilities for compressing from various types of sources

OSErr RecompressCompressedImageWithTransparency( ImageDescriptionHandle originalDesc, Handle originalImageData,

                                                    RGBColor *keyColor, 

                                                    RgnHandle limitHitTestRegion,

                                                    ImageDescriptionHandle *idh, Handle * imageData );

OSErr RecompressPictureWithTransparency ( PicHandle originalPicture,

                                                    RGBColor *keyColor, 

                                                    RgnHandle limitHitTestRegion,

                                                    ImageDescriptionHandle *idh, Handle * imageData );

OSErr RecompressPictureFileWithTransparency ( FSSpec * spec, 

                                                    RGBColor *keyColor, 

                                                    RgnHandle limitHitTestRegion,

                                                    ImageDescriptionHandle *idh, Handle * imageData );

// Low-level callback procedure based routine to compress with/without transparency & hit-testing

enum {

    kRecoProcInitMsg = 1,                   // message and refcon are valid

    kRecoProcDisposeMsg = 2,                // message and refcon are valid

    kRecoProcGetBoundsMsg = 3,              // message, bounds and refcon are valid. Proc fills in bounds with rectangle to use for compressed image.

    kRecoProcDrawMsg = 4                    // message, bounds, drawingPort, portType and refcon are valid. portType is 'imag' if drawing into

                                            // image GWorld, 'imap' if drawing into hit testing GWorld.

};

enum {

    kRecoProcOriginalImageType =            FOUR_CHAR_CODE('imag'),

    kRecoProcHitTestingImageType =          FOUR_CHAR_CODE('imap')

};

typedef pascal OSErr (*CompressDrawProc)( short message, Rect * bounds, GWorldPtr drawingPort, OSType drawingImageType, void * refcon );

OSErr RecompressWithTransparencyFromProc( CompressDrawProc drawProc, void * drawProcRefcon, 

                                                    Boolean includeHitTesting,

                                                    RGBColor *keyColor, 

                                                    RgnHandle hitTestRegion,

                                                    ImageDescriptionHandle *idh, Handle * imageData );

#endif