/********************************************************** 
** Copyright 1999 Earth Resource Mapping Ltd.
** This document contains proprietary source code of
** Earth Resource Mapping Ltd, and can only be used under
** one of the three licenses as described in the 
** license.txt file supplied with this distribution. 
** See separate license.txt file for license details 
** and conditions.
**
** This software is covered by US patent #6,442,298,
** #6,102,897 and #6,633,688.  Rights to use these patents 
** is included in the license agreements.
** 
** FILE:   	NCSECWCompess.wc
** CREATED:	21 May 1999
** AUTHOR: 	TIS
** PURPOSE:	Public Interface library to compress ECW v2.0 image files
** EDITS:
** [01] tis	21May99 Created file
** [02] sjc 30Apr00	Merged Mac SDK port
**
********************************************************/

#ifndef NCSECWCOMPRESS_H
#define NCSECWCOMPRESS_H

#ifndef NCSECWCOMPRESSCLIENT_H
#include "NCSECWCompressClient.h"
#endif

#if !defined(_WIN32_WCE)
	#include <time.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif


/*
**	The EcwCompressionTask is used to simply do compressions.
**
**	Usage is:
**		ecw_compress_task_new()			- to create one of these structures
**		ecw_compress_task_parse_args()	- (optional step) parse command line args into task structure
**		ecw_compress_task_setup()		- will open input, and compute size details
**		ecw_compress_task_compress()	- do the actional compression. Skip this step to just get file sizes
**		ecw_compress_task_delete()		- to close the structure and any associated data
*/

#define MAX_THREAD_LINES 10

typedef struct {
	NCSQueueNode	qNode;
	IEEE4			**ppLines;
} EcwCompressionQueueNode;

typedef struct EcwCompressionTask {
		// Any routine will set this if an error occurred
		NCSError		eInputError;						/* NCSError */

#ifdef MACINTOSH
		char			szTmpDir[64];
#else	/* MACINTOSH */
		char			szTmpDir[MAX_PATH];
#endif	/* MACINTOSH */

		// private values. Do not use or modify. You must call the task_delete routine to free
		struct qmf_level_struct	*pQmf;
		NCS_FILE_HANDLE		OutputHandle;
		void				*pClient;
		NCSThread			tThread;
		BOOLEAN				bKillThread;
		UINT32				nNextInputLine;
		NCSPool				*pQueuePool;
		NCSQueue			*pReadQueue;
		NCSQueue			*pFreeQueue;
		IEEE4				**ppLines;			/* For Non-Threaded reads when converting RGB to YUV */

		CompressFormat		eInternalFormat;
		NCSError			(*pReadCallback)(void *pClient, UINT32 nNextLine, IEEE4 **ppInputArray);	
		void				(*pStatusCallback)(void *pClient, UINT32 nCurrentLine);
		BOOLEAN				(*pCancelCallback)(void *pClient);
} EcwCompressionTask;

#ifdef __cplusplus
}
#endif

#endif	// NCSECWCOMPRESS_H