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Imported from libpng-1.0.1c.tar

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This commit is contained in:
Glenn Randers-Pehrson
1998-05-09 10:02:29 -05:00
parent 1d96361273
commit d0dce40075
30 changed files with 373 additions and 200 deletions
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19
pngwutil.c
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@@ -1,12 +1,12 @@
/* pngwutil.c - utilities to write a PNG file
*
* 1.0.1b
* 1.0.1c
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson
* May 2, 1998
* May 9, 1998
*/
#define PNG_INTERNAL
@@ -1432,7 +1432,6 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
png_bytep rp;
png_uint_32 sum = 0;
png_uint_32 i;
int j;
int v;
for (i = 0, rp = row_buf + 1; i < row_bytes; i++, rp++)
@@ -1445,6 +1444,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
{
png_uint_32 sumhi, sumlo;
int j;
sumlo = sum & PNG_LOMASK;
sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; /* Gives us some footroom */
@@ -1484,7 +1484,6 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
{
png_bytep rp, lp, dp;
png_uint_32 i;
int j;
for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp;
i++, rp++, dp++)
{
@@ -1503,7 +1502,6 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
png_bytep rp, dp, lp;
png_uint_32 sum = 0, lmins = mins;
png_uint_32 i;
int j;
int v;
#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED)
@@ -1513,6 +1511,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
*/
if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
{
int j;
png_uint_32 lmhi, lmlo;
lmlo = lmins & PNG_LOMASK;
lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK;
@@ -1561,6 +1560,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED)
if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
{
int j;
png_uint_32 sumhi, sumlo;
sumlo = sum & PNG_LOMASK;
sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;
@@ -1615,13 +1615,13 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
png_bytep rp, dp, pp;
png_uint_32 sum = 0, lmins = mins;
png_uint_32 i;
int j;
int v;
#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED)
if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
{
int j;
png_uint_32 lmhi, lmlo;
lmlo = lmins & PNG_LOMASK;
lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK;
@@ -1663,6 +1663,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED)
if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
{
int j;
png_uint_32 sumhi, sumlo;
sumlo = sum & PNG_LOMASK;
sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;
@@ -1720,12 +1721,12 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
png_bytep rp, dp, pp, lp;
png_uint_32 sum = 0, lmins = mins;
png_uint_32 i;
int j;
int v;
#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED)
if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
{
int j;
png_uint_32 lmhi, lmlo;
lmlo = lmins & PNG_LOMASK;
lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK;
@@ -1774,6 +1775,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED)
if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
{
int j;
png_uint_32 sumhi, sumlo;
sumlo = sum & PNG_LOMASK;
sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;
@@ -1852,12 +1854,12 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
png_bytep rp, dp, pp, cp, lp;
png_uint_32 sum = 0, lmins = mins;
png_uint_32 i;
int j;
int v;
#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED)
if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
{
int j;
png_uint_32 lmhi, lmlo;
lmlo = lmins & PNG_LOMASK;
lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK;
@@ -1938,6 +1940,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED)
if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
{
int j;
png_uint_32 sumhi, sumlo;
sumlo = sum & PNG_LOMASK;
sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;