pngconf.h

It was built with libpng version 1.2.35, and is running with libpng version 1.2.35

#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)
#  ifndef PNG_OPTIMIZED_CODE_SUPPORTED
#    define PNG_OPTIMIZED_CODE_SUPPORTED
#  endif
#endif

#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
#  ifndef PNG_ASSEMBLER_CODE_SUPPORTED
#    define PNG_ASSEMBLER_CODE_SUPPORTED
#  endif

#  if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)
     /* work around 64-bit gcc compiler bugs in gcc-3.x */
#    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
#      define PNG_NO_MMX_CODE
#    endif
#  endif

#  if defined(__APPLE__)
#    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
#      define PNG_NO_MMX_CODE
#    endif
#  endif

#  if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))
#    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
#      define PNG_NO_MMX_CODE
#    endif
#  endif

#  if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
#    define PNG_MMX_CODE_SUPPORTED
#  endif

#endif
/* end of obsolete code to be removed from libpng-1.4.0 */

#if !defined(PNG_1_0_X)
#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
#  define PNG_USER_MEM_SUPPORTED
#endif
#endif /* PNG_1_0_X */

/* Added at libpng-1.2.6 */
#if !defined(PNG_1_0_X)
#ifndef PNG_SET_USER_LIMITS_SUPPORTED
#if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED)
#  define PNG_SET_USER_LIMITS_SUPPORTED
#endif
#endif
#endif /* PNG_1_0_X */

/* Added at libpng-1.0.16 and 1.2.6.  To accept all valid PNGS no matter
 * how large, set these limits to 0x7fffffffL
 */
#ifndef PNG_USER_WIDTH_MAX
#  define PNG_USER_WIDTH_MAX 1000000L
#endif
#ifndef PNG_USER_HEIGHT_MAX
#  define PNG_USER_HEIGHT_MAX 1000000L
#endif

/* Added at libpng-1.2.34 and 1.4.0 */
#ifndef PNG_STRING_NEWLINE
#define PNG_STRING_NEWLINE "\n"
#endif

/* These are currently experimental features, define them if you want */

/* very little testing */
/*
#ifdef PNG_READ_SUPPORTED
#  ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
#    define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
#  endif
#endif
*/

/* This is only for PowerPC big-endian and 680x0 systems */
/* some testing */
/*
#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
#  define PNG_READ_BIG_ENDIAN_SUPPORTED
#endif
*/

/* Buggy compilers (e.g., gcc 2.7.2.2) need this */
/*
#define PNG_NO_POINTER_INDEXING
*/

/* These functions are turned off by default, as they will be phased out. */
/*
#define  PNG_USELESS_TESTS_SUPPORTED
#define  PNG_CORRECT_PALETTE_SUPPORTED
*/

/* Any chunks you are not interested in, you can undef here.  The
 * ones that allocate memory may be expecially important (hIST,
 * tEXt, zTXt, tRNS, pCAL).  Others will just save time and make png_info
 * a bit smaller.
 */

#if defined(PNG_READ_SUPPORTED) && \
    !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
    !defined(PNG_NO_READ_ANCILLARY_CHUNKS)
#  define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
#endif

#if defined(PNG_WRITE_SUPPORTED) && \
    !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
    !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
#  define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
#endif

#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED

#ifdef PNG_NO_READ_TEXT
#  define PNG_NO_READ_iTXt
#  define PNG_NO_READ_tEXt
#  define PNG_NO_READ_zTXt
#endif
#ifndef PNG_NO_READ_bKGD
#  define PNG_READ_bKGD_SUPPORTED
#  define PNG_bKGD_SUPPORTED
#endif
#ifndef PNG_NO_READ_cHRM
#  define PNG_READ_cHRM_SUPPORTED
#  define PNG_cHRM_SUPPORTED
#endif
#ifndef PNG_NO_READ_gAMA
#  define PNG_READ_gAMA_SUPPORTED
#  define PNG_gAMA_SUPPORTED
#endif
#ifndef PNG_NO_READ_hIST
#  define PNG_READ_hIST_SUPPORTED
#  define PNG_hIST_SUPPORTED
#endif
#ifndef PNG_NO_READ_iCCP
#  define PNG_READ_iCCP_SUPPORTED
#  define PNG_iCCP_SUPPORTED
#endif
#ifndef PNG_NO_READ_iTXt
#  ifndef PNG_READ_iTXt_SUPPORTED
#    define PNG_READ_iTXt_SUPPORTED
#  endif
#  ifndef PNG_iTXt_SUPPORTED
#    define PNG_iTXt_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_READ_oFFs
#  define PNG_READ_oFFs_SUPPORTED
#  define PNG_oFFs_SUPPORTED
#endif
#ifndef PNG_NO_READ_pCAL
#  define PNG_READ_pCAL_SUPPORTED
#  define PNG_pCAL_SUPPORTED
#endif
#ifndef PNG_NO_READ_sCAL
#  define PNG_READ_sCAL_SUPPORTED
#  define PNG_sCAL_SUPPORTED
#endif
#ifndef PNG_NO_READ_pHYs
#  define PNG_READ_pHYs_SUPPORTED
#  define PNG_pHYs_SUPPORTED
#endif
#ifndef PNG_NO_READ_sBIT
#  define PNG_READ_sBIT_SUPPORTED
#  define PNG_sBIT_SUPPORTED
#endif
#ifndef PNG_NO_READ_sPLT
#  define PNG_READ_sPLT_SUPPORTED
#  define PNG_sPLT_SUPPORTED
#endif
#ifndef PNG_NO_READ_sRGB
#  define PNG_READ_sRGB_SUPPORTED
#  define PNG_sRGB_SUPPORTED
#endif
#ifndef PNG_NO_READ_tEXt
#  define PNG_READ_tEXt_SUPPORTED
#  define PNG_tEXt_SUPPORTED
#endif
#ifndef PNG_NO_READ_tIME
#  define PNG_READ_tIME_SUPPORTED
#  define PNG_tIME_SUPPORTED
#endif
#ifndef PNG_NO_READ_tRNS
#  define PNG_READ_tRNS_SUPPORTED
#  define PNG_tRNS_SUPPORTED
#endif
#ifndef PNG_NO_READ_zTXt
#  define PNG_READ_zTXt_SUPPORTED
#  define PNG_zTXt_SUPPORTED
#endif
#ifndef PNG_NO_READ_UNKNOWN_CHUNKS
#  define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
#  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
#    define PNG_UNKNOWN_CHUNKS_SUPPORTED
#  endif
#  ifndef PNG_NO_HANDLE_AS_UNKNOWN
#    define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#  endif
#endif
#if !defined(PNG_NO_READ_USER_CHUNKS) && \
     defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
#  define PNG_READ_USER_CHUNKS_SUPPORTED
#  define PNG_USER_CHUNKS_SUPPORTED
#  ifdef PNG_NO_READ_UNKNOWN_CHUNKS
#    undef PNG_NO_READ_UNKNOWN_CHUNKS
#  endif
#  ifdef PNG_NO_HANDLE_AS_UNKNOWN
#    undef PNG_NO_HANDLE_AS_UNKNOWN
#  endif
#endif
#ifndef PNG_NO_READ_OPT_PLTE
#  define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
#endif                      /* optional PLTE chunk in RGB and RGBA images */
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
    defined(PNG_READ_zTXt_SUPPORTED)
#  define PNG_READ_TEXT_SUPPORTED
#  define PNG_TEXT_SUPPORTED
#endif

#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */

#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED

#ifdef PNG_NO_WRITE_TEXT
#  define PNG_NO_WRITE_iTXt
#  define PNG_NO_WRITE_tEXt
#  define PNG_NO_WRITE_zTXt
#endif
#ifndef PNG_NO_WRITE_bKGD
#  define PNG_WRITE_bKGD_SUPPORTED
#  ifndef PNG_bKGD_SUPPORTED
#    define PNG_bKGD_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_cHRM
#  define PNG_WRITE_cHRM_SUPPORTED
#  ifndef PNG_cHRM_SUPPORTED
#    define PNG_cHRM_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_gAMA
#  define PNG_WRITE_gAMA_SUPPORTED
#  ifndef PNG_gAMA_SUPPORTED
#    define PNG_gAMA_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_hIST
#  define PNG_WRITE_hIST_SUPPORTED
#  ifndef PNG_hIST_SUPPORTED
#    define PNG_hIST_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_iCCP
#  define PNG_WRITE_iCCP_SUPPORTED
#  ifndef PNG_iCCP_SUPPORTED
#    define PNG_iCCP_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_iTXt
#  ifndef PNG_WRITE_iTXt_SUPPORTED
#    define PNG_WRITE_iTXt_SUPPORTED
#  endif
#  ifndef PNG_iTXt_SUPPORTED
#    define PNG_iTXt_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_oFFs
#  define PNG_WRITE_oFFs_SUPPORTED
#  ifndef PNG_oFFs_SUPPORTED
#    define PNG_oFFs_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_pCAL
#  define PNG_WRITE_pCAL_SUPPORTED
#  ifndef PNG_pCAL_SUPPORTED
#    define PNG_pCAL_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_sCAL
#  define PNG_WRITE_sCAL_SUPPORTED
#  ifndef PNG_sCAL_SUPPORTED
#    define PNG_sCAL_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_pHYs
#  define PNG_WRITE_pHYs_SUPPORTED
#  ifndef PNG_pHYs_SUPPORTED
#    define PNG_pHYs_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_sBIT
#  define PNG_WRITE_sBIT_SUPPORTED
#  ifndef PNG_sBIT_SUPPORTED
#    define PNG_sBIT_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_sPLT
#  define PNG_WRITE_sPLT_SUPPORTED
#  ifndef PNG_sPLT_SUPPORTED
#    define PNG_sPLT_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_sRGB
#  define PNG_WRITE_sRGB_SUPPORTED
#  ifndef PNG_sRGB_SUPPORTED
#    define PNG_sRGB_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_tEXt
#  define PNG_WRITE_tEXt_SUPPORTED
#  ifndef PNG_tEXt_SUPPORTED
#    define PNG_tEXt_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_tIME
#  define PNG_WRITE_tIME_SUPPORTED
#  ifndef PNG_tIME_SUPPORTED
#    define PNG_tIME_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_tRNS
#  define PNG_WRITE_tRNS_SUPPORTED
#  ifndef PNG_tRNS_SUPPORTED
#    define PNG_tRNS_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_zTXt
#  define PNG_WRITE_zTXt_SUPPORTED
#  ifndef PNG_zTXt_SUPPORTED
#    define PNG_zTXt_SUPPORTED
#  endif
#endif
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
#  define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
#  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
#    define PNG_UNKNOWN_CHUNKS_SUPPORTED
#  endif
#  ifndef PNG_NO_HANDLE_AS_UNKNOWN
#     ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#       define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#     endif
#  endif
#endif
#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
    defined(PNG_WRITE_zTXt_SUPPORTED)
#  define PNG_WRITE_TEXT_SUPPORTED
#  ifndef PNG_TEXT_SUPPORTED
#    define PNG_TEXT_SUPPORTED
#  endif
#endif

#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */

/* Turn this off to disable png_read_png() and
 * png_write_png() and leave the row_pointers member
 * out of the info structure.
 */
#ifndef PNG_NO_INFO_IMAGE
#  define PNG_INFO_IMAGE_SUPPORTED
#endif

/* need the time information for reading tIME chunks */
#if defined(PNG_tIME_SUPPORTED)
#  if !defined(_WIN32_WCE)
     /* "time.h" functions are not supported on WindowsCE */
#    include <time.h>
#  endif
#endif

/* Some typedefs to get us started.  These should be safe on most of the
 * common platforms.  The typedefs should be at least as large as the