diff options
Diffstat (limited to 'third_party/libpng16/pngpread.c')
| -rw-r--r-- | third_party/libpng16/pngpread.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/third_party/libpng16/pngpread.c b/third_party/libpng16/pngpread.c index 89ffc4018f..a16fcbef3a 100644 --- a/third_party/libpng16/pngpread.c +++ b/third_party/libpng16/pngpread.c @@ -2,7 +2,7 @@ /* pngpread.c - read a png file in push mode * * Last changed in libpng 1.6.18 [July 23, 2015] - * Copyright (c) 1998-2015 Glenn Randers-Pehrson + * Copyright (c) 1998-2002,2004,2006-2015 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.) * @@ -210,12 +210,14 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) (png_ptr->mode & PNG_HAVE_PLTE) == 0) png_error(png_ptr, "Missing PLTE before IDAT"); - png_ptr->mode |= PNG_HAVE_IDAT; png_ptr->process_mode = PNG_READ_IDAT_MODE; - if ((png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) == 0) - if (png_ptr->push_length == 0) - return; + if ((png_ptr->mode & PNG_HAVE_IDAT) != 0) + if ((png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) == 0) + if (png_ptr->push_length == 0) + return; + + png_ptr->mode |= PNG_HAVE_IDAT; if ((png_ptr->mode & PNG_AFTER_IDAT) != 0) png_benign_error(png_ptr, "Too many IDATs found"); |