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[libpng16] Added calls to png_handle_eXIf(() in pngread.c and png_write_eXIf()

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in pngwrite.c, and made various other fixes to png_write_eXIf().
Eliminated png_ptr->num_exif member from pngstruct.h and added num_exif
  to arguments for png_get_eXIf() and png_set_eXIf().
This commit is contained in:
Glenn Randers-Pehrson
2017-07-31 14:20:40 -05:00
parent 4ab78af90a
commit 40afb68570
8 changed files with 46 additions and 21 deletions
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3
pngget.c
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@@ -776,13 +776,14 @@ png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr,
#ifdef PNG_eXIf_SUPPORTED
png_uint_32 PNGAPI
png_get_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytep *exif)
png_uint_32 *num_exif, png_bytep *exif)
{
png_debug1(1, "in %s retrieval function", "eXIf");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_eXIf) != 0 && exif != NULL)
{
*num_exif = info_ptr->num_exif;
*exif = info_ptr->exif;
return (PNG_INFO_eXIf);
}