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Imported from pngcrush-1.3.1.tar

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This commit is contained in:
Glenn Randers-Pehrson
1999-12-27 03:10:07 -06:00
parent 7a16d67a4b
commit e7cba14aff
23 changed files with 616 additions and 401 deletions
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12
pngwutil.c
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@@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file
*
* libpng 1.0.5j - December 21, 1999
* libpng 1.0.5k - December 27, 1999
* 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
@@ -584,8 +584,8 @@ png_write_gAMA(png_structp png_ptr, double file_gamma)
png_write_chunk(png_ptr, (png_bytep)png_gAMA, buf, (png_size_t)4);
}
#endif
void
#ifdef PNG_FIXED_POINT_SUPPORTED
void
png_write_gAMA_fixed(png_structp png_ptr, png_fixed_point file_gamma)
{
#ifdef PNG_USE_LOCAL_ARRAYS
@@ -1741,7 +1741,7 @@ png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass)
i += png_pass_inc[pass])
{
sp = row + (png_size_t)(i >> 3);
value = (int)(*sp >> (7 - (int)(i & 7))) & 0x1;
value = (int)(*sp >> (7 - (int)(i & 0x07))) & 0x01;
d |= (value << shift);
if (shift == 0)
@@ -1775,7 +1775,7 @@ png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass)
i += png_pass_inc[pass])
{
sp = row + (png_size_t)(i >> 2);
value = (*sp >> ((3 - (int)(i & 3)) << 1)) & 0x3;
value = (*sp >> ((3 - (int)(i & 0x03)) << 1)) & 0x03;
d |= (value << shift);
if (shift == 0)
@@ -1808,7 +1808,7 @@ png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass)
i += png_pass_inc[pass])
{
sp = row + (png_size_t)(i >> 1);
value = (*sp >> ((1 - (int)(i & 1)) << 2)) & 0xf;
value = (*sp >> ((1 - (int)(i & 0x01)) << 2)) & 0x0f;
d |= (value << shift);
if (shift == 0)
@@ -1915,7 +1915,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
/* We don't need to test the 'no filter' case if this is the only filter
* that has been chosen, as it doesn't actually do anything to the data.
*/
if (filter_to_do & PNG_FILTER_NONE &&
if ((filter_to_do & PNG_FILTER_NONE) &&
filter_to_do != PNG_FILTER_NONE)
{
png_bytep rp;