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The Independent JPEG Group's JPEG software v6b

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This commit is contained in:
Thomas G. Lane
1998-03-27 00:00:00 +00:00
committed by Kornel Lesiński
parent 16c97143f3
commit 41f55c093a
89 changed files with 13297 additions and 2475 deletions
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13
jidctfst.c
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@@ -1,7 +1,7 @@
/*
* jidctfst.c
*
* Copyright (C) 1994-1996, Thomas G. Lane.
* Copyright (C) 1994-1998, Thomas G. Lane.
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
@@ -197,9 +197,10 @@ jpeg_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr,
* column DCT calculations can be simplified this way.
*/
if ((inptr[DCTSIZE*1] | inptr[DCTSIZE*2] | inptr[DCTSIZE*3] |
inptr[DCTSIZE*4] | inptr[DCTSIZE*5] | inptr[DCTSIZE*6] |
inptr[DCTSIZE*7]) == 0) {
if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 &&
inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 &&
inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 &&
inptr[DCTSIZE*7] == 0) {
/* AC terms all zero */
int dcval = (int) DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
@@ -289,8 +290,8 @@ jpeg_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr,
*/
#ifndef NO_ZERO_ROW_TEST
if ((wsptr[1] | wsptr[2] | wsptr[3] | wsptr[4] | wsptr[5] | wsptr[6] |
wsptr[7]) == 0) {
if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 && wsptr[4] == 0 &&
wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) {
/* AC terms all zero */
JSAMPLE dcval = range_limit[IDESCALE(wsptr[0], PASS1_BITS+3)
& RANGE_MASK];