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[libpng12] Quieted some harmless warnings from Coverity-scan.

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Glenn Randers-Pehrson
2015-01-31 13:54:10 -06:00
parent a4d40f32dd
commit e0e239ada0
9 changed files with 71 additions and 37 deletions
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8
pngread.c
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@@ -1,8 +1,8 @@
/* pngread.c - read a PNG file
*
* Last changed in libpng 1.2.52 [November 20, 2014]
* Copyright (c) 1998-2014 Glenn Randers-Pehrson
* Last changed in libpng 1.2.53 [%RDATE%]
* Copyright (c) 1998-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -274,7 +274,7 @@ png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
do
{
if (user_png_ver[i] != png_libpng_ver[i])
if (user_png_ver == NULL || user_png_ver[i] != png_libpng_ver[i])
{
#ifdef PNG_LEGACY_SUPPORTED
png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH;
@@ -597,10 +597,12 @@ png_start_read_image(png_structp png_ptr)
void PNGAPI
png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
{
#ifndef PNG_USE_GLOBAL_ARRAYS
PNG_CONST PNG_IDAT;
PNG_CONST int png_pass_dsp_mask[7] = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55,
0xff};
PNG_CONST int png_pass_mask[7] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};
#endif
int ret;
if (png_ptr == NULL)