You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
2.0 KiB
64 lines
2.0 KiB
15 years ago
|
/*
|
||
|
|
* mcu.h --
|
||
|
|
*
|
||
|
|
* Copyright (C) 1991, 1992, Thomas G. Lane.
|
||
|
|
* Part of the Independent JPEG Group's software.
|
||
|
|
* See the file Copyright for more details.
|
||
|
|
*
|
||
|
|
* Copyright (c) 1993 Brian C. Smith, The Regents of the University
|
||
|
|
* of California
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Copyright (c) 1994 Kongji Huang and Brian C. Smith.
|
||
|
|
* Cornell University
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Permission to use, copy, modify, and distribute this software and its
|
||
|
|
* documentation for any purpose, without fee, and without written agreement is
|
||
|
|
* hereby granted, provided that the above copyright notice and the following
|
||
|
|
* two paragraphs appear in all copies of this software.
|
||
|
|
*
|
||
|
|
* IN NO EVENT SHALL CORNELL UNIVERSITY BE LIABLE TO ANY PARTY FOR
|
||
|
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
|
||
|
|
* OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF CORNELL
|
||
|
|
* UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* CORNELL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
|
||
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
|
||
|
|
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
||
|
|
* ON AN "AS IS" BASIS, AND CORNELL UNIVERSITY HAS NO OBLIGATION TO
|
||
|
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _MCU
|
||
|
|
#define _MCU
|
||
|
|
|
||
|
|
/*
|
||
|
|
* An MCU (minimum coding unit) is an array of samples.
|
||
|
|
*/
|
||
|
|
typedef short ComponentType; /* the type of image components */
|
||
|
|
typedef ComponentType *MCU; /* MCU - array of samples */
|
||
|
|
|
||
|
|
extern MCU *mcuTable; /* the global mcu table that buffers the source image */
|
||
|
|
extern int numMCU; /* number of MCUs in mcuTable */
|
||
|
|
extern MCU *mcuROW1,*mcuROW2; /* pt to two rows of MCU in encoding & decoding */
|
||
|
|
|
||
|
|
/*
|
||
|
|
*--------------------------------------------------------------
|
||
|
|
*
|
||
|
|
* MakeMCU --
|
||
|
|
*
|
||
|
|
* MakeMCU returns an MCU for input parsing.
|
||
|
|
*
|
||
|
|
* Results:
|
||
|
|
* A new MCU
|
||
|
|
*
|
||
|
|
* Side effects:
|
||
|
|
* None.
|
||
|
|
*
|
||
|
|
*--------------------------------------------------------------
|
||
|
|
*/
|
||
|
|
#define MakeMCU(dcPtr) (mcuTable[numMCU++])
|
||
|
|
|
||
|
|
#endif /* _MCU */
|