#include "pnglibconf.h"
#include "pngconf.h"

Classes
struct	png_color_struct

struct	png_color_16_struct

struct	png_color_8_struct

struct	png_sPLT_entry_struct

struct	png_sPLT_struct

struct	png_text_struct

struct	png_time_struct

struct	png_unknown_chunk_t

struct	png_row_info_struct

struct	png_image

Macros
#define	PNG_LIBPNG_VER_STRING "1.6.36"

#define	PNG_HEADER_VERSION_STRING " libpng version 1.6.36 - December 1, 2018\n"

#define	PNG_LIBPNG_VER_SONUM 16

#define	PNG_LIBPNG_VER_DLLNUM 16

#define	PNG_LIBPNG_VER_MAJOR 1

#define	PNG_LIBPNG_VER_MINOR 6

#define	PNG_LIBPNG_VER_RELEASE 36

#define	PNG_LIBPNG_VER_BUILD 0

#define	PNG_LIBPNG_BUILD_ALPHA 1

#define	PNG_LIBPNG_BUILD_BETA 2

#define	PNG_LIBPNG_BUILD_RC 3

#define	PNG_LIBPNG_BUILD_STABLE 4

#define	PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7

#define	PNG_LIBPNG_BUILD_PATCH

#define	PNG_LIBPNG_BUILD_PRIVATE

#define	PNG_LIBPNG_BUILD_SPECIAL

#define	PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE

#define	PNG_LIBPNG_VER 10636 /* 1.6.36 */

#define	PNG_LIBPNG_BUILD_TYPE (PNG_LIBPNG_BUILD_BASE_TYPE)

#define	png_libpng_ver png_get_header_ver(NULL)

#define	PNG_TEXT_COMPRESSION_NONE_WR -3

#define	PNG_TEXT_COMPRESSION_zTXt_WR -2

#define	PNG_TEXT_COMPRESSION_NONE -1

#define	PNG_TEXT_COMPRESSION_zTXt 0

#define	PNG_ITXT_COMPRESSION_NONE 1

#define	PNG_ITXT_COMPRESSION_zTXt 2

#define	PNG_TEXT_COMPRESSION_LAST 3 /* Not a valid value */

#define	PNG_HAVE_IHDR 0x01

#define	PNG_HAVE_PLTE 0x02

#define	PNG_AFTER_IDAT 0x08

#define	PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL)

#define	PNG_UINT_32_MAX ((png_uint_32)(-1))

#define	PNG_SIZE_MAX ((size_t)(-1))

#define	PNG_FP_1 100000

#define	PNG_FP_HALF 50000

#define	PNG_FP_MAX ((png_fixed_point)0x7fffffffL)

#define	PNG_FP_MIN (-PNG_FP_MAX)

#define	PNG_COLOR_MASK_PALETTE 1

#define	PNG_COLOR_MASK_COLOR 2

#define	PNG_COLOR_MASK_ALPHA 4

#define	PNG_COLOR_TYPE_GRAY 0

#define	PNG_COLOR_TYPE_PALETTE (PNG_COLOR_MASK_COLOR \| PNG_COLOR_MASK_PALETTE)

#define	PNG_COLOR_TYPE_RGB (PNG_COLOR_MASK_COLOR)

#define	PNG_COLOR_TYPE_RGB_ALPHA (PNG_COLOR_MASK_COLOR \| PNG_COLOR_MASK_ALPHA)

#define	PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA)

#define	PNG_COLOR_TYPE_RGBA PNG_COLOR_TYPE_RGB_ALPHA

#define	PNG_COLOR_TYPE_GA PNG_COLOR_TYPE_GRAY_ALPHA

#define	PNG_COMPRESSION_TYPE_BASE 0 /* Deflate method 8, 32K window */

#define	PNG_COMPRESSION_TYPE_DEFAULT PNG_COMPRESSION_TYPE_BASE

#define	PNG_FILTER_TYPE_BASE 0 /* Single row per-byte filtering */

#define	PNG_INTRAPIXEL_DIFFERENCING 64 /* Used only in MNG datastreams */

#define	PNG_FILTER_TYPE_DEFAULT PNG_FILTER_TYPE_BASE

#define	PNG_INTERLACE_NONE 0 /* Non-interlaced image */

#define	PNG_INTERLACE_ADAM7 1 /* Adam7 interlacing */

#define	PNG_INTERLACE_LAST 2 /* Not a valid value */

#define	PNG_OFFSET_PIXEL 0 /* Offset in pixels */

#define	PNG_OFFSET_MICROMETER 1 /* Offset in micrometers (1/10^6 meter) */

#define	PNG_OFFSET_LAST 2 /* Not a valid value */

#define	PNG_EQUATION_LINEAR 0 /* Linear transformation */

#define	PNG_EQUATION_BASE_E 1 /* Exponential base e transform */

#define	PNG_EQUATION_ARBITRARY 2 /* Arbitrary base exponential transform */

#define	PNG_EQUATION_HYPERBOLIC 3 /* Hyperbolic sine transformation */

#define	PNG_EQUATION_LAST 4 /* Not a valid value */

#define	PNG_SCALE_UNKNOWN 0 /* unknown unit (image scale) */

#define	PNG_SCALE_METER 1 /* meters per pixel */

#define	PNG_SCALE_RADIAN 2 /* radians per pixel */

#define	PNG_SCALE_LAST 3 /* Not a valid value */

#define	PNG_RESOLUTION_UNKNOWN 0 /* pixels/unknown unit (aspect ratio) */

#define	PNG_RESOLUTION_METER 1 /* pixels/meter */

#define	PNG_RESOLUTION_LAST 2 /* Not a valid value */

#define	PNG_sRGB_INTENT_PERCEPTUAL 0

#define	PNG_sRGB_INTENT_RELATIVE 1

#define	PNG_sRGB_INTENT_SATURATION 2

#define	PNG_sRGB_INTENT_ABSOLUTE 3

#define	PNG_sRGB_INTENT_LAST 4 /* Not a valid value */

#define	PNG_KEYWORD_MAX_LENGTH 79

#define	PNG_MAX_PALETTE_LENGTH 256

#define	PNG_INFO_gAMA 0x0001U

#define	PNG_INFO_sBIT 0x0002U

#define	PNG_INFO_cHRM 0x0004U

#define	PNG_INFO_PLTE 0x0008U

#define	PNG_INFO_tRNS 0x0010U

#define	PNG_INFO_bKGD 0x0020U

#define	PNG_INFO_hIST 0x0040U

#define	PNG_INFO_pHYs 0x0080U

#define	PNG_INFO_oFFs 0x0100U

#define	PNG_INFO_tIME 0x0200U

#define	PNG_INFO_pCAL 0x0400U

#define	PNG_INFO_sRGB 0x0800U /* GR-P, 0.96a */

#define	PNG_INFO_iCCP 0x1000U /* ESR, 1.0.6 */

#define	PNG_INFO_sPLT 0x2000U /* ESR, 1.0.6 */

#define	PNG_INFO_sCAL 0x4000U /* ESR, 1.0.6 */

#define	PNG_INFO_IDAT 0x8000U /* ESR, 1.0.6 */

#define	PNG_INFO_eXIf 0x10000U /* GR-P, 1.6.31 */

#define	PNG_TRANSFORM_IDENTITY 0x0000 /* read and write */

#define	PNG_TRANSFORM_STRIP_16 0x0001 /* read only */

#define	PNG_TRANSFORM_STRIP_ALPHA 0x0002 /* read only */

#define	PNG_TRANSFORM_PACKING 0x0004 /* read and write */

#define	PNG_TRANSFORM_PACKSWAP 0x0008 /* read and write */

#define	PNG_TRANSFORM_EXPAND 0x0010 /* read only */

#define	PNG_TRANSFORM_INVERT_MONO 0x0020 /* read and write */

#define	PNG_TRANSFORM_SHIFT 0x0040 /* read and write */

#define	PNG_TRANSFORM_BGR 0x0080 /* read and write */

#define	PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */

#define	PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */

#define	PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */

#define	PNG_TRANSFORM_STRIP_FILLER 0x0800 /* write only */

#define	PNG_TRANSFORM_STRIP_FILLER_BEFORE PNG_TRANSFORM_STRIP_FILLER

#define	PNG_TRANSFORM_STRIP_FILLER_AFTER 0x1000 /* write only */

#define	PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */

#define	PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */

#define	PNG_FLAG_MNG_EMPTY_PLTE 0x01

#define	PNG_FLAG_MNG_FILTER_64 0x04

#define	PNG_ALL_MNG_FEATURES 0x05

#define	png_check_sig(sig, n) !png_sig_cmp((sig), 0, (n))

#define	png_jmpbuf(png_ptr) (*png_set_longjmp_fn((png_ptr), longjmp, (sizeof (jmp_buf))))

#define	PNG_ERROR_ACTION_NONE 1

#define	PNG_ERROR_ACTION_WARN 2

#define	PNG_ERROR_ACTION_ERROR 3

#define	PNG_RGB_TO_GRAY_DEFAULT (-1)/for red/green coefficients/

#define	PNG_ALPHA_PNG 0 /* according to the PNG standard */

#define	PNG_ALPHA_STANDARD 1 /* according to Porter/Duff */

#define	PNG_ALPHA_ASSOCIATED 1 /* as above; this is the normal practice */

#define	PNG_ALPHA_PREMULTIPLIED 1 /* as above */

#define	PNG_ALPHA_OPTIMIZED 2 /* 'PNG' for opaque pixels, else 'STANDARD' */

#define	PNG_ALPHA_BROKEN 3 /* the alpha channel is gamma encoded */

#define	PNG_DEFAULT_sRGB -1 /* sRGB gamma and color space */

#define	PNG_GAMMA_MAC_18 -2 /* Old Mac '1.8' gamma and color space */

#define	PNG_GAMMA_sRGB 220000 /* Television standards--matches sRGB gamma */

#define	PNG_GAMMA_LINEAR PNG_FP_1 /* Linear */

#define	PNG_FILLER_BEFORE 0

#define	PNG_FILLER_AFTER 1

#define	PNG_BACKGROUND_GAMMA_UNKNOWN 0

#define	PNG_BACKGROUND_GAMMA_SCREEN 1

#define	PNG_BACKGROUND_GAMMA_FILE 2

#define	PNG_BACKGROUND_GAMMA_UNIQUE 3

#define	PNG_READ_16_TO_8_SUPPORTED /* Name prior to 1.5.4 */

#define	PNG_GAMMA_THRESHOLD (PNG_GAMMA_THRESHOLD_FIXED*.00001)

#define	PNG_CRC_DEFAULT 0 /* error/quit warn/discard data */

#define	PNG_CRC_ERROR_QUIT 1 /* error/quit error/quit */

#define	PNG_CRC_WARN_DISCARD 2 /* (INVALID) warn/discard data */

#define	PNG_CRC_WARN_USE 3 /* warn/use data warn/use data */

#define	PNG_CRC_QUIET_USE 4 /* quiet/use data quiet/use data */

#define	PNG_CRC_NO_CHANGE 5 /* use current value use current value */

#define	PNG_NO_FILTERS 0x00

#define	PNG_FILTER_NONE 0x08

#define	PNG_FILTER_SUB 0x10

#define	PNG_FILTER_UP 0x20

#define	PNG_FILTER_AVG 0x40

#define	PNG_FILTER_PAETH 0x80

#define	PNG_FAST_FILTERS (PNG_FILTER_NONE \| PNG_FILTER_SUB \| PNG_FILTER_UP)

#define	PNG_ALL_FILTERS (PNG_FAST_FILTERS \| PNG_FILTER_AVG \| PNG_FILTER_PAETH)

#define	PNG_FILTER_VALUE_NONE 0

#define	PNG_FILTER_VALUE_SUB 1

#define	PNG_FILTER_VALUE_UP 2

#define	PNG_FILTER_VALUE_AVG 3

#define	PNG_FILTER_VALUE_PAETH 4

#define	PNG_FILTER_VALUE_LAST 5

#define	PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */

#define	PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */

#define	PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */

#define	PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */

#define	PNG_DESTROY_WILL_FREE_DATA 1

#define	PNG_SET_WILL_FREE_DATA 1

#define	PNG_USER_WILL_FREE_DATA 2

#define	PNG_FREE_HIST 0x0008U

#define	PNG_FREE_ICCP 0x0010U

#define	PNG_FREE_SPLT 0x0020U

#define	PNG_FREE_ROWS 0x0040U

#define	PNG_FREE_PCAL 0x0080U

#define	PNG_FREE_SCAL 0x0100U

#define	PNG_FREE_UNKN 0x0200U

#define	PNG_FREE_PLTE 0x1000U

#define	PNG_FREE_TRNS 0x2000U

#define	PNG_FREE_TEXT 0x4000U

#define	PNG_FREE_EXIF 0x8000U /* Added at libpng-1.6.31 */

#define	PNG_FREE_ALL 0xffffU

#define	PNG_FREE_MUL 0x4220U /* PNG_FREE_SPLT\|PNG_FREE_TEXT\|PNG_FREE_UNKN */

#define	PNG_HANDLE_CHUNK_AS_DEFAULT 0

#define	PNG_HANDLE_CHUNK_NEVER 1

#define	PNG_HANDLE_CHUNK_IF_SAFE 2

#define	PNG_HANDLE_CHUNK_ALWAYS 3

#define	PNG_HANDLE_CHUNK_LAST 4

#define	PNG_IO_NONE 0x0000 /* no I/O at this moment */

#define	PNG_IO_READING 0x0001 /* currently reading */

#define	PNG_IO_WRITING 0x0002 /* currently writing */

#define	PNG_IO_SIGNATURE 0x0010 /* currently at the file signature */

#define	PNG_IO_CHUNK_HDR 0x0020 /* currently at the chunk header */

#define	PNG_IO_CHUNK_DATA 0x0040 /* currently at the chunk data */

#define	PNG_IO_CHUNK_CRC 0x0080 /* currently at the chunk crc */

#define	PNG_IO_MASK_OP 0x000f /* current operation: reading/writing */

#define	PNG_IO_MASK_LOC 0x00f0 /* current location: sig/hdr/data/crc */

#define	PNG_INTERLACE_ADAM7_PASSES 7

#define	PNG_PASS_START_ROW(pass) (((1&~(pass))<<(3-((pass)>>1)))&7)

#define	PNG_PASS_START_COL(pass) (((1& (pass))<<(3-(((pass)+1)>>1)))&7)

#define	PNG_PASS_ROW_OFFSET(pass) ((pass)>2?(8>>(((pass)-1)>>1)):8)

#define	PNG_PASS_COL_OFFSET(pass) (1<<((7-(pass))>>1))

#define	PNG_PASS_ROW_SHIFT(pass) ((pass)>2?(8-(pass))>>1:3)

#define	PNG_PASS_COL_SHIFT(pass) ((pass)>1?(7-(pass))>>1:3)

#define	PNG_PASS_ROWS(height, pass)

#define	PNG_PASS_COLS(width, pass)

#define	PNG_ROW_FROM_PASS_ROW(y_in, pass) (((y_in)<<PNG_PASS_ROW_SHIFT(pass))+PNG_PASS_START_ROW(pass))

#define	PNG_COL_FROM_PASS_COL(x_in, pass) (((x_in)<<PNG_PASS_COL_SHIFT(pass))+PNG_PASS_START_COL(pass))

#define	PNG_PASS_MASK(pass, off)

#define	PNG_ROW_IN_INTERLACE_PASS(y, pass) ((PNG_PASS_MASK(pass,0) >> ((y)&7)) & 1)

#define	PNG_COL_IN_INTERLACE_PASS(x, pass) ((PNG_PASS_MASK(pass,1) >> ((x)&7)) & 1)

#define	png_composite(composite, fg, alpha, bg)

#define	png_composite_16(composite, fg, alpha, bg)

#define	PNG_get_uint_32(buf)

#define	PNG_get_uint_16(buf)

#define	PNG_get_int_32(buf)

#define	png_get_uint_32(buf) PNG_get_uint_32(buf)

#define	png_get_uint_16(buf) PNG_get_uint_16(buf)

#define	png_get_int_32(buf) PNG_get_int_32(buf)

#define	PNG_IMAGE_VERSION 1

#define	PNG_IMAGE_WARNING 1

#define	PNG_IMAGE_ERROR 2

#define	PNG_IMAGE_FAILED(png_cntrl) ((((png_cntrl).warning_or_error)&0x03)>1)

#define	PNG_FORMAT_FLAG_ALPHA 0x01U /* format with an alpha channel */

#define	PNG_FORMAT_FLAG_COLOR 0x02U /* color format: otherwise grayscale */

#define	PNG_FORMAT_FLAG_LINEAR 0x04U /* 2-byte channels else 1-byte */

#define	PNG_FORMAT_FLAG_COLORMAP 0x08U /* image data is color-mapped */

#define	PNG_FORMAT_FLAG_BGR 0x10U /* BGR colors, else order is RGB */

#define	PNG_FORMAT_FLAG_AFIRST 0x20U /* alpha channel comes first */

#define	PNG_FORMAT_FLAG_ASSOCIATED_ALPHA 0x40U /* alpha channel is associated */

#define	PNG_FORMAT_GRAY 0

#define	PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA

#define	PNG_FORMAT_AG (PNG_FORMAT_GA\|PNG_FORMAT_FLAG_AFIRST)

#define	PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR

#define	PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR\|PNG_FORMAT_FLAG_BGR)

#define	PNG_FORMAT_RGBA (PNG_FORMAT_RGB\|PNG_FORMAT_FLAG_ALPHA)

#define	PNG_FORMAT_ARGB (PNG_FORMAT_RGBA\|PNG_FORMAT_FLAG_AFIRST)

#define	PNG_FORMAT_BGRA (PNG_FORMAT_BGR\|PNG_FORMAT_FLAG_ALPHA)

#define	PNG_FORMAT_ABGR (PNG_FORMAT_BGRA\|PNG_FORMAT_FLAG_AFIRST)

#define	PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR

#define	PNG_FORMAT_LINEAR_Y_ALPHA (PNG_FORMAT_FLAG_LINEAR\|PNG_FORMAT_FLAG_ALPHA)

#define	PNG_FORMAT_LINEAR_RGB (PNG_FORMAT_FLAG_LINEAR\|PNG_FORMAT_FLAG_COLOR)

#define	PNG_FORMAT_LINEAR_RGB_ALPHA (PNG_FORMAT_FLAG_LINEAR\|PNG_FORMAT_FLAG_COLOR\|PNG_FORMAT_FLAG_ALPHA)

#define	PNG_FORMAT_RGB_COLORMAP (PNG_FORMAT_RGB\|PNG_FORMAT_FLAG_COLORMAP)

#define	PNG_FORMAT_BGR_COLORMAP (PNG_FORMAT_BGR\|PNG_FORMAT_FLAG_COLORMAP)

#define	PNG_FORMAT_RGBA_COLORMAP (PNG_FORMAT_RGBA\|PNG_FORMAT_FLAG_COLORMAP)

#define	PNG_FORMAT_ARGB_COLORMAP (PNG_FORMAT_ARGB\|PNG_FORMAT_FLAG_COLORMAP)

#define	PNG_FORMAT_BGRA_COLORMAP (PNG_FORMAT_BGRA\|PNG_FORMAT_FLAG_COLORMAP)

#define	PNG_FORMAT_ABGR_COLORMAP (PNG_FORMAT_ABGR\|PNG_FORMAT_FLAG_COLORMAP)

#define	PNG_IMAGE_SAMPLE_CHANNELS(fmt) (((fmt)&(PNG_FORMAT_FLAG_COLOR\|PNG_FORMAT_FLAG_ALPHA))+1)

#define	PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt) ((((fmt) & PNG_FORMAT_FLAG_LINEAR) >> 2)+1)

#define	PNG_IMAGE_SAMPLE_SIZE(fmt) (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt))

#define	PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt) (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256)

#define	PNG_IMAGE_PIXEL_(test, fmt) (((fmt)&PNG_FORMAT_FLAG_COLORMAP)?1:test(fmt))

#define	PNG_IMAGE_PIXEL_CHANNELS(fmt) PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_CHANNELS,fmt)

#define	PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt) PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_COMPONENT_SIZE,fmt)

#define	PNG_IMAGE_PIXEL_SIZE(fmt) PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_SIZE,fmt)

#define	PNG_IMAGE_ROW_STRIDE(image) (PNG_IMAGE_PIXEL_CHANNELS((image).format) * (image).width)

#define	PNG_IMAGE_BUFFER_SIZE(image, row_stride) (PNG_IMAGE_PIXEL_COMPONENT_SIZE((image).format)(image).height(row_stride))

#define	PNG_IMAGE_SIZE(image) PNG_IMAGE_BUFFER_SIZE(image, PNG_IMAGE_ROW_STRIDE(image))

#define	PNG_IMAGE_COLORMAP_SIZE(image) (PNG_IMAGE_SAMPLE_SIZE((image).format) * (image).colormap_entries)

#define	PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB 0x01

#define	PNG_IMAGE_FLAG_FAST 0x02

#define	PNG_IMAGE_FLAG_16BIT_sRGB 0x04

#define	png_image_write_get_memory_size(image, size, convert_to_8_bit, buffer, row_stride, colormap)

#define	PNG_IMAGE_DATA_SIZE(image) (PNG_IMAGE_SIZE(image)+(image).height)

#define	PNG_ZLIB_MAX_SIZE(b) ((b)+(((b)+7U)>>3)+(((b)+63U)>>6)+11U)

#define	PNG_IMAGE_COMPRESSED_SIZE_MAX(image) PNG_ZLIB_MAX_SIZE((png_alloc_size_t)PNG_IMAGE_DATA_SIZE(image))

#define	PNG_IMAGE_PNG_SIZE_MAX_(image, image_size)

#define	PNG_IMAGE_PNG_SIZE_MAX(image) PNG_IMAGE_PNG_SIZE_MAX_(image, PNG_IMAGE_COMPRESSED_SIZE_MAX(image))

#define	PNG_MAXIMUM_INFLATE_WINDOW 2 /* SOFTWARE: force maximum window */

#define	PNG_SKIP_sRGB_CHECK_PROFILE 4 /* SOFTWARE: Check ICC profile for sRGB */

#define	PNG_IGNORE_ADLER32 8

#define	PNG_OPTION_NEXT 12 /* Next option - numbers must be even */

#define	PNG_OPTION_UNSET 0 /* Unset - defaults to off */

#define	PNG_OPTION_INVALID 1 /* Option number out of range */

#define	PNG_OPTION_OFF 2

#define	PNG_OPTION_ON 3

Typedefs
typedef char *	png_libpng_version_1_6_36

typedef struct png_struct_def	png_struct

typedef png_struct *	png_structp

typedef png_struct **	png_structpp

typedef struct png_info_def	png_info

typedef png_info *	png_infop

typedef png_info **	png_infopp

typedef png_struct *PNG_RESTRICT	png_structrp

typedef png_info *PNG_RESTRICT	png_inforp

typedef struct png_color_struct	png_color

typedef png_color *	png_colorp

typedef png_color **	png_colorpp

typedef struct png_color_16_struct	png_color_16

typedef png_color_16 *	png_color_16p

typedef png_color_16 **	png_color_16pp

typedef struct png_color_8_struct	png_color_8

typedef png_color_8 *	png_color_8p

typedef png_color_8 **	png_color_8pp

typedef struct png_sPLT_entry_struct	png_sPLT_entry

typedef png_sPLT_entry *	png_sPLT_entryp

typedef png_sPLT_entry **	png_sPLT_entrypp

typedef struct png_sPLT_struct	png_sPLT_t

typedef png_sPLT_t *	png_sPLT_tp

typedef png_sPLT_t **	png_sPLT_tpp

typedef struct png_text_struct	png_text

typedef png_text *	png_textp

typedef png_text **	png_textpp

typedef struct png_time_struct	png_time

typedef png_time *	png_timep

typedef png_time **	png_timepp

typedef struct png_unknown_chunk_t	png_unknown_chunk

typedef png_unknown_chunk *	png_unknown_chunkp

typedef png_unknown_chunk **	png_unknown_chunkpp

typedef struct png_row_info_struct	png_row_info

typedef png_row_info *	png_row_infop

typedef png_row_info **	png_row_infopp

typedef struct png_control *	png_controlp

typedef struct png_image *	png_imagep

Functions
typedef	PNG_CALLBACK (void, *png_error_ptr,(png_structp, png_const_charp))

typedef	PNG_CALLBACK (void, *png_rw_ptr,(png_structp, png_bytep, size_t))

typedef	PNG_CALLBACK (void, *png_flush_ptr,(png_structp))

typedef	PNG_CALLBACK (void, *png_read_status_ptr,(png_structp, png_uint_32, int))

typedef	PNG_CALLBACK (void, *png_progressive_info_ptr,(png_structp, png_infop))

typedef	PNG_CALLBACK (void, *png_progressive_row_ptr,(png_structp, png_bytep, png_uint_32, int))

typedef	PNG_CALLBACK (void, *png_user_transform_ptr,(png_structp, png_row_infop, png_bytep))

typedef	PNG_CALLBACK (int, *png_user_chunk_ptr,(png_structp, png_unknown_chunkp))

	PNG_FUNCTION (void,(PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)), typedef)

typedef	PNG_CALLBACK (png_voidp, *png_malloc_ptr,(png_structp, png_alloc_size_t))

typedef	PNG_CALLBACK (void, *png_free_ptr,(png_structp, png_voidp))

	PNG_EXPORT (1, png_uint_32, png_access_version_number,(void))

	PNG_EXPORT (2, void, png_set_sig_bytes,(png_structrp png_ptr, int num_bytes))

	PNG_EXPORT (3, int, png_sig_cmp,(png_const_bytep sig, size_t start, size_t num_to_check))

	PNG_EXPORTA (4, png_structp, png_create_read_struct,(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn), PNG_ALLOCATED)

	PNG_EXPORTA (5, png_structp, png_create_write_struct,(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn), PNG_ALLOCATED)

	PNG_EXPORT (6, size_t, png_get_compression_buffer_size,(png_const_structrp png_ptr))

	PNG_EXPORT (7, void, png_set_compression_buffer_size,(png_structrp png_ptr, size_t size))

	PNG_EXPORT (8, jmp_buf *, png_set_longjmp_fn,(png_structrp png_ptr, png_longjmp_ptr longjmp_fn, size_t jmp_buf_size))

	PNG_EXPORTA (9, void, png_longjmp,(png_const_structrp png_ptr, int val), PNG_NORETURN)

	PNG_EXPORTA (10, int, png_reset_zstream,(png_structrp png_ptr), PNG_DEPRECATED)

	PNG_EXPORTA (11, png_structp, png_create_read_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn), PNG_ALLOCATED)

	PNG_EXPORTA (12, png_structp, png_create_write_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn), PNG_ALLOCATED)

	PNG_EXPORT (13, void, png_write_sig,(png_structrp png_ptr))

	PNG_EXPORT (14, void, png_write_chunk,(png_structrp png_ptr, png_const_bytep chunk_name, png_const_bytep data, size_t length))

	PNG_EXPORT (15, void, png_write_chunk_start,(png_structrp png_ptr, png_const_bytep chunk_name, png_uint_32 length))

	PNG_EXPORT (16, void, png_write_chunk_data,(png_structrp png_ptr, png_const_bytep data, size_t length))

	PNG_EXPORT (17, void, png_write_chunk_end,(png_structrp png_ptr))

	PNG_EXPORTA (18, png_infop, png_create_info_struct,(png_const_structrp png_ptr), PNG_ALLOCATED)

	PNG_EXPORTA (19, void, png_info_init_3,(png_infopp info_ptr, size_t png_info_struct_size), PNG_DEPRECATED)

	PNG_EXPORT (20, void, png_write_info_before_PLTE,(png_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (21, void, png_write_info,(png_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (22, void, png_read_info,(png_structrp png_ptr, png_inforp info_ptr))

	PNG_EXPORTA (23, png_const_charp, png_convert_to_rfc1123,(png_structrp png_ptr, png_const_timep ptime), PNG_DEPRECATED)

	PNG_EXPORT (241, int, png_convert_to_rfc1123_buffer,(char out[29], png_const_timep ptime))

	PNG_EXPORT (24, void, png_convert_from_struct_tm,(png_timep ptime, const struct tm *ttime))

	PNG_EXPORT (25, void, png_convert_from_time_t,(png_timep ptime, time_t ttime))

	PNG_EXPORT (26, void, png_set_expand,(png_structrp png_ptr))

	PNG_EXPORT (27, void, png_set_expand_gray_1_2_4_to_8,(png_structrp png_ptr))

	PNG_EXPORT (28, void, png_set_palette_to_rgb,(png_structrp png_ptr))

	PNG_EXPORT (29, void, png_set_tRNS_to_alpha,(png_structrp png_ptr))

	PNG_EXPORT (221, void, png_set_expand_16,(png_structrp png_ptr))

	PNG_EXPORT (30, void, png_set_bgr,(png_structrp png_ptr))

	PNG_EXPORT (31, void, png_set_gray_to_rgb,(png_structrp png_ptr))

	PNG_FP_EXPORT (32, void, png_set_rgb_to_gray,(png_structrp png_ptr, int error_action, double red, double green)) PNG_FIXED_EXPORT(33

png_structrp int png_fixed_point png_fixed_point green	PNG_EXPORT (34, png_byte, png_get_rgb_to_gray_status,(png_const_structrp png_ptr))

	PNG_EXPORT (35, void, png_build_grayscale_palette,(int bit_depth, png_colorp palette))

	PNG_FP_EXPORT (227, void, png_set_alpha_mode,(png_structrp png_ptr, int mode, double output_gamma)) PNG_FIXED_EXPORT(228

	PNG_EXPORT (36, void, png_set_strip_alpha,(png_structrp png_ptr))

	PNG_EXPORT (37, void, png_set_swap_alpha,(png_structrp png_ptr))

	PNG_EXPORT (38, void, png_set_invert_alpha,(png_structrp png_ptr))

	PNG_EXPORT (39, void, png_set_filler,(png_structrp png_ptr, png_uint_32 filler, int flags))

	PNG_EXPORT (40, void, png_set_add_alpha,(png_structrp png_ptr, png_uint_32 filler, int flags))

	PNG_EXPORT (41, void, png_set_swap,(png_structrp png_ptr))

	PNG_EXPORT (42, void, png_set_packing,(png_structrp png_ptr))

	PNG_EXPORT (43, void, png_set_packswap,(png_structrp png_ptr))

	PNG_EXPORT (44, void, png_set_shift,(png_structrp png_ptr, png_const_color_8p true_bits))

	PNG_EXPORT (45, int, png_set_interlace_handling,(png_structrp png_ptr))

	PNG_EXPORT (46, void, png_set_invert_mono,(png_structrp png_ptr))

	PNG_FP_EXPORT (47, void, png_set_background,(png_structrp png_ptr, png_const_color_16p background_color, int background_gamma_code, int need_expand, double background_gamma)) PNG_FIXED_EXPORT(215

	PNG_EXPORT (229, void, png_set_scale_16,(png_structrp png_ptr))

	PNG_EXPORT (48, void, png_set_strip_16,(png_structrp png_ptr))

	PNG_EXPORT (49, void, png_set_quantize,(png_structrp png_ptr, png_colorp palette, int num_palette, int maximum_colors, png_const_uint_16p histogram, int full_quantize))

	PNG_FP_EXPORT (50, void, png_set_gamma,(png_structrp png_ptr, double screen_gamma, double override_file_gamma)) PNG_FIXED_EXPORT(208

png_structrp png_fixed_point png_fixed_point override_file_gamma	PNG_EXPORT (51, void, png_set_flush,(png_structrp png_ptr, int nrows))

	PNG_EXPORT (52, void, png_write_flush,(png_structrp png_ptr))

	PNG_EXPORT (53, void, png_start_read_image,(png_structrp png_ptr))

	PNG_EXPORT (54, void, png_read_update_info,(png_structrp png_ptr, png_inforp info_ptr))

	PNG_EXPORT (55, void, png_read_rows,(png_structrp png_ptr, png_bytepp row, png_bytepp display_row, png_uint_32 num_rows))

	PNG_EXPORT (56, void, png_read_row,(png_structrp png_ptr, png_bytep row, png_bytep display_row))

	PNG_EXPORT (57, void, png_read_image,(png_structrp png_ptr, png_bytepp image))

	PNG_EXPORT (58, void, png_write_row,(png_structrp png_ptr, png_const_bytep row))

	PNG_EXPORT (59, void, png_write_rows,(png_structrp png_ptr, png_bytepp row, png_uint_32 num_rows))

	PNG_EXPORT (60, void, png_write_image,(png_structrp png_ptr, png_bytepp image))

	PNG_EXPORT (61, void, png_write_end,(png_structrp png_ptr, png_inforp info_ptr))

	PNG_EXPORT (62, void, png_read_end,(png_structrp png_ptr, png_inforp info_ptr))

	PNG_EXPORT (63, void, png_destroy_info_struct,(png_const_structrp png_ptr, png_infopp info_ptr_ptr))

	PNG_EXPORT (64, void, png_destroy_read_struct,(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr))

	PNG_EXPORT (65, void, png_destroy_write_struct,(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr))

	PNG_EXPORT (66, void, png_set_crc_action,(png_structrp png_ptr, int crit_action, int ancil_action))

	PNG_EXPORT (67, void, png_set_filter,(png_structrp png_ptr, int method, int filters))

	PNG_FP_EXPORT (68, void, png_set_filter_heuristics,(png_structrp png_ptr, int heuristic_method, int num_weights, png_const_doublep filter_weights, png_const_doublep filter_costs)) PNG_FIXED_EXPORT(209

	PNG_EXPORT (69, void, png_set_compression_level,(png_structrp png_ptr, int level))

	PNG_EXPORT (70, void, png_set_compression_mem_level,(png_structrp png_ptr, int mem_level))

	PNG_EXPORT (71, void, png_set_compression_strategy,(png_structrp png_ptr, int strategy))

	PNG_EXPORT (72, void, png_set_compression_window_bits,(png_structrp png_ptr, int window_bits))

	PNG_EXPORT (73, void, png_set_compression_method,(png_structrp png_ptr, int method))

	PNG_EXPORT (222, void, png_set_text_compression_level,(png_structrp png_ptr, int level))

	PNG_EXPORT (223, void, png_set_text_compression_mem_level,(png_structrp png_ptr, int mem_level))

	PNG_EXPORT (224, void, png_set_text_compression_strategy,(png_structrp png_ptr, int strategy))

	PNG_EXPORT (225, void, png_set_text_compression_window_bits,(png_structrp png_ptr, int window_bits))

	PNG_EXPORT (226, void, png_set_text_compression_method,(png_structrp png_ptr, int method))

	PNG_EXPORT (74, void, png_init_io,(png_structrp png_ptr, png_FILE_p fp))

	PNG_EXPORT (75, void, png_set_error_fn,(png_structrp png_ptr, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn))

	PNG_EXPORT (76, png_voidp, png_get_error_ptr,(png_const_structrp png_ptr))

	PNG_EXPORT (77, void, png_set_write_fn,(png_structrp png_ptr, png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn))

	PNG_EXPORT (78, void, png_set_read_fn,(png_structrp png_ptr, png_voidp io_ptr, png_rw_ptr read_data_fn))

	PNG_EXPORT (79, png_voidp, png_get_io_ptr,(png_const_structrp png_ptr))

	PNG_EXPORT (80, void, png_set_read_status_fn,(png_structrp png_ptr, png_read_status_ptr read_row_fn))

	PNG_EXPORT (81, void, png_set_write_status_fn,(png_structrp png_ptr, png_write_status_ptr write_row_fn))

	PNG_EXPORT (82, void, png_set_mem_fn,(png_structrp png_ptr, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn))

	PNG_EXPORT (83, png_voidp, png_get_mem_ptr,(png_const_structrp png_ptr))

	PNG_EXPORT (84, void, png_set_read_user_transform_fn,(png_structrp png_ptr, png_user_transform_ptr read_user_transform_fn))

	PNG_EXPORT (85, void, png_set_write_user_transform_fn,(png_structrp png_ptr, png_user_transform_ptr write_user_transform_fn))

	PNG_EXPORT (86, void, png_set_user_transform_info,(png_structrp png_ptr, png_voidp user_transform_ptr, int user_transform_depth, int user_transform_channels))

	PNG_EXPORT (87, png_voidp, png_get_user_transform_ptr,(png_const_structrp png_ptr))

	PNG_EXPORT (217, png_uint_32, png_get_current_row_number,(png_const_structrp))

	PNG_EXPORT (218, png_byte, png_get_current_pass_number,(png_const_structrp))

	PNG_EXPORT (88, void, png_set_read_user_chunk_fn,(png_structrp png_ptr, png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn))

	PNG_EXPORT (89, png_voidp, png_get_user_chunk_ptr,(png_const_structrp png_ptr))

	PNG_EXPORT (90, void, png_set_progressive_read_fn,(png_structrp png_ptr, png_voidp progressive_ptr, png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn))

	PNG_EXPORT (91, png_voidp, png_get_progressive_ptr,(png_const_structrp png_ptr))

	PNG_EXPORT (92, void, png_process_data,(png_structrp png_ptr, png_inforp info_ptr, png_bytep buffer, size_t buffer_size))

	PNG_EXPORT (219, size_t, png_process_data_pause,(png_structrp, int save))

	PNG_EXPORT (220, png_uint_32, png_process_data_skip,(png_structrp))

	PNG_EXPORT (93, void, png_progressive_combine_row,(png_const_structrp png_ptr, png_bytep old_row, png_const_bytep new_row))

	PNG_EXPORTA (94, png_voidp, png_malloc,(png_const_structrp png_ptr, png_alloc_size_t size), PNG_ALLOCATED)

	PNG_EXPORTA (95, png_voidp, png_calloc,(png_const_structrp png_ptr, png_alloc_size_t size), PNG_ALLOCATED)

	PNG_EXPORTA (96, png_voidp, png_malloc_warn,(png_const_structrp png_ptr, png_alloc_size_t size), PNG_ALLOCATED)

	PNG_EXPORT (97, void, png_free,(png_const_structrp png_ptr, png_voidp ptr))

	PNG_EXPORT (98, void, png_free_data,(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 free_me, int num))

	PNG_EXPORT (99, void, png_data_freer,(png_const_structrp png_ptr, png_inforp info_ptr, int freer, png_uint_32 mask))

	PNG_EXPORTA (100, png_voidp, png_malloc_default,(png_const_structrp png_ptr, png_alloc_size_t size), PNG_ALLOCATED PNG_DEPRECATED)

	PNG_EXPORTA (101, void, png_free_default,(png_const_structrp png_ptr, png_voidp ptr), PNG_DEPRECATED)

	PNG_EXPORTA (102, void, png_error,(png_const_structrp png_ptr, png_const_charp error_message), PNG_NORETURN)

	PNG_EXPORTA (103, void, png_chunk_error,(png_const_structrp png_ptr, png_const_charp error_message), PNG_NORETURN)

	PNG_EXPORT (105, void, png_warning,(png_const_structrp png_ptr, png_const_charp warning_message))

	PNG_EXPORT (106, void, png_chunk_warning,(png_const_structrp png_ptr, png_const_charp warning_message))

	PNG_EXPORT (107, void, png_benign_error,(png_const_structrp png_ptr, png_const_charp warning_message))

	PNG_EXPORT (108, void, png_chunk_benign_error,(png_const_structrp png_ptr, png_const_charp warning_message))

	PNG_EXPORT (109, void, png_set_benign_errors,(png_structrp png_ptr, int allowed))

	PNG_EXPORT (110, png_uint_32, png_get_valid,(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 flag))

	PNG_EXPORT (111, size_t, png_get_rowbytes,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (112, png_bytepp, png_get_rows,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (113, void, png_set_rows,(png_const_structrp png_ptr, png_inforp info_ptr, png_bytepp row_pointers))

	PNG_EXPORT (114, png_byte, png_get_channels,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (115, png_uint_32, png_get_image_width,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (116, png_uint_32, png_get_image_height,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (117, png_byte, png_get_bit_depth,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (118, png_byte, png_get_color_type,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (119, png_byte, png_get_filter_type,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (120, png_byte, png_get_interlace_type,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (121, png_byte, png_get_compression_type,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (122, png_uint_32, png_get_pixels_per_meter,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (123, png_uint_32, png_get_x_pixels_per_meter,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (124, png_uint_32, png_get_y_pixels_per_meter,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_FP_EXPORT (125, float, png_get_pixel_aspect_ratio,(png_const_structrp png_ptr, png_const_inforp info_ptr)) PNG_FIXED_EXPORT(210

png_const_structrp png_const_inforp info_ptr	PNG_EXPORT (126, png_int_32, png_get_x_offset_pixels,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (127, png_int_32, png_get_y_offset_pixels,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (128, png_int_32, png_get_x_offset_microns,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (129, png_int_32, png_get_y_offset_microns,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (130, png_const_bytep, png_get_signature,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (131, png_uint_32, png_get_bKGD,(png_const_structrp png_ptr, png_inforp info_ptr, png_color_16p *background))

	PNG_EXPORT (132, void, png_set_bKGD,(png_const_structrp png_ptr, png_inforp info_ptr, png_const_color_16p background))

	PNG_FP_EXPORT (133, png_uint_32, png_get_cHRM,(png_const_structrp png_ptr, png_const_inforp info_ptr, double white_x, double white_y, double red_x, double red_y, double green_x, double green_y, double blue_x, double blue_y)) PNG_FP_EXPORT(230

png_const_structrp png_const_inforp double double double double double double double double double *blue_Z	PNG_FIXED_EXPORT (134, png_uint_32, png_get_cHRM_fixed,(png_const_structrp png_ptr, png_const_inforp info_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, png_fixed_point int_blue_y)) PNG_FIXED_EXPORT(231

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point int_blue_Z	PNG_FP_EXPORT (135, void, png_set_cHRM,(png_const_structrp png_ptr, png_inforp info_ptr, double white_x, double white_y, double red_x, double red_y, double green_x, double green_y, double blue_x, double blue_y)) PNG_FP_EXPORT(232

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point int_blue_Z png_const_structrp png_inforp double double double double double double double double double blue_Z	PNG_FIXED_EXPORT (136, void, png_set_cHRM_fixed,(png_const_structrp png_ptr, png_inforp info_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, png_fixed_point int_blue_y)) PNG_FIXED_EXPORT(233

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point int_blue_Z png_const_structrp png_inforp double double double double double double double double double blue_Z png_const_structrp png_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point int_blue_Z	PNG_EXPORT (246, png_uint_32, png_get_eXIf,(png_const_structrp png_ptr, png_inforp info_ptr, png_bytep *exif))

	PNG_EXPORT (247, void, png_set_eXIf,(png_const_structrp png_ptr, png_inforp info_ptr, png_bytep exif))

	PNG_EXPORT (248, png_uint_32, png_get_eXIf_1,(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 num_exif, png_bytep exif))

	PNG_EXPORT (249, void, png_set_eXIf_1,(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 num_exif, png_bytep exif))

	PNG_FP_EXPORT (137, png_uint_32, png_get_gAMA,(png_const_structrp png_ptr, png_const_inforp info_ptr, double *file_gamma)) PNG_FIXED_EXPORT(138

png_const_structrp png_const_inforp png_fixed_point *int_file_gamma	PNG_FP_EXPORT (139, void, png_set_gAMA,(png_const_structrp png_ptr, png_inforp info_ptr, double file_gamma)) PNG_FIXED_EXPORT(140

png_const_structrp png_const_inforp png_fixed_point *int_file_gamma png_const_structrp png_inforp png_fixed_point int_file_gamma	PNG_EXPORT (141, png_uint_32, png_get_hIST,(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_16p *hist))

	PNG_EXPORT (142, void, png_set_hIST,(png_const_structrp png_ptr, png_inforp info_ptr, png_const_uint_16p hist))

	PNG_EXPORT (143, png_uint_32, png_get_IHDR,(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, int interlace_method, int compression_method, int *filter_method))

	PNG_EXPORT (144, void, png_set_IHDR,(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, int interlace_method, int compression_method, int filter_method))

	PNG_EXPORT (145, png_uint_32, png_get_oFFs,(png_const_structrp png_ptr, png_const_inforp info_ptr, png_int_32 offset_x, png_int_32 offset_y, int *unit_type))

	PNG_EXPORT (146, void, png_set_oFFs,(png_const_structrp png_ptr, png_inforp info_ptr, png_int_32 offset_x, png_int_32 offset_y, int unit_type))

	PNG_EXPORT (147, png_uint_32, png_get_pCAL,(png_const_structrp png_ptr, png_inforp info_ptr, png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, png_charp units, png_charpp *params))

	PNG_EXPORT (148, void, png_set_pCAL,(png_const_structrp png_ptr, png_inforp info_ptr, png_const_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, png_const_charp units, png_charpp params))

	PNG_EXPORT (149, png_uint_32, png_get_pHYs,(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 res_x, png_uint_32 res_y, int *unit_type))

	PNG_EXPORT (150, void, png_set_pHYs,(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type))

	PNG_EXPORT (151, png_uint_32, png_get_PLTE,(png_const_structrp png_ptr, png_inforp info_ptr, png_colorp palette, int num_palette))

	PNG_EXPORT (152, void, png_set_PLTE,(png_structrp png_ptr, png_inforp info_ptr, png_const_colorp palette, int num_palette))

	PNG_EXPORT (153, png_uint_32, png_get_sBIT,(png_const_structrp png_ptr, png_inforp info_ptr, png_color_8p *sig_bit))

	PNG_EXPORT (154, void, png_set_sBIT,(png_const_structrp png_ptr, png_inforp info_ptr, png_const_color_8p sig_bit))

	PNG_EXPORT (155, png_uint_32, png_get_sRGB,(png_const_structrp png_ptr, png_const_inforp info_ptr, int *file_srgb_intent))

	PNG_EXPORT (156, void, png_set_sRGB,(png_const_structrp png_ptr, png_inforp info_ptr, int srgb_intent))

	PNG_EXPORT (157, void, png_set_sRGB_gAMA_and_cHRM,(png_const_structrp png_ptr, png_inforp info_ptr, int srgb_intent))

	PNG_EXPORT (158, png_uint_32, png_get_iCCP,(png_const_structrp png_ptr, png_inforp info_ptr, png_charpp name, int compression_type, png_bytepp profile, png_uint_32 proflen))

	PNG_EXPORT (159, void, png_set_iCCP,(png_const_structrp png_ptr, png_inforp info_ptr, png_const_charp name, int compression_type, png_const_bytep profile, png_uint_32 proflen))

	PNG_EXPORT (160, int, png_get_sPLT,(png_const_structrp png_ptr, png_inforp info_ptr, png_sPLT_tpp entries))

	PNG_EXPORT (161, void, png_set_sPLT,(png_const_structrp png_ptr, png_inforp info_ptr, png_const_sPLT_tp entries, int nentries))

	PNG_EXPORT (162, int, png_get_text,(png_const_structrp png_ptr, png_inforp info_ptr, png_textp text_ptr, int num_text))

	PNG_EXPORT (163, void, png_set_text,(png_const_structrp png_ptr, png_inforp info_ptr, png_const_textp text_ptr, int num_text))

	PNG_EXPORT (164, png_uint_32, png_get_tIME,(png_const_structrp png_ptr, png_inforp info_ptr, png_timep *mod_time))

	PNG_EXPORT (165, void, png_set_tIME,(png_const_structrp png_ptr, png_inforp info_ptr, png_const_timep mod_time))

	PNG_EXPORT (166, png_uint_32, png_get_tRNS,(png_const_structrp png_ptr, png_inforp info_ptr, png_bytep trans_alpha, int num_trans, png_color_16p *trans_color))

	PNG_EXPORT (167, void, png_set_tRNS,(png_structrp png_ptr, png_inforp info_ptr, png_const_bytep trans_alpha, int num_trans, png_const_color_16p trans_color))

	PNG_FP_EXPORT (168, png_uint_32, png_get_sCAL,(png_const_structrp png_ptr, png_const_inforp info_ptr, int unit, double width, double *height)) PNG_FIXED_EXPORT(214

png_const_structrp png_const_inforp int png_fixed_point png_fixed_point *height	PNG_EXPORT (169, png_uint_32, png_get_sCAL_s,(png_const_structrp png_ptr, png_const_inforp info_ptr, int *unit, png_charpp swidth, png_charpp sheight))

	PNG_FP_EXPORT (170, void, png_set_sCAL,(png_const_structrp png_ptr, png_inforp info_ptr, int unit, double width, double height)) PNG_FIXED_EXPORT(213

png_const_structrp png_inforp int png_fixed_point png_fixed_point height	PNG_EXPORT (171, void, png_set_sCAL_s,(png_const_structrp png_ptr, png_inforp info_ptr, int unit, png_const_charp swidth, png_const_charp sheight))

	PNG_EXPORT (172, void, png_set_keep_unknown_chunks,(png_structrp png_ptr, int keep, png_const_bytep chunk_list, int num_chunks))

	PNG_EXPORT (173, int, png_handle_as_unknown,(png_const_structrp png_ptr, png_const_bytep chunk_name))

	PNG_EXPORT (174, void, png_set_unknown_chunks,(png_const_structrp png_ptr, png_inforp info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns))

	PNG_EXPORT (175, void, png_set_unknown_chunk_location,(png_const_structrp png_ptr, png_inforp info_ptr, int chunk, int location))

	PNG_EXPORT (176, int, png_get_unknown_chunks,(png_const_structrp png_ptr, png_inforp info_ptr, png_unknown_chunkpp entries))

	PNG_EXPORT (177, void, png_set_invalid,(png_const_structrp png_ptr, png_inforp info_ptr, int mask))

	PNG_EXPORT (178, void, png_read_png,(png_structrp png_ptr, png_inforp info_ptr, int transforms, png_voidp params))

	PNG_EXPORT (179, void, png_write_png,(png_structrp png_ptr, png_inforp info_ptr, int transforms, png_voidp params))

	PNG_EXPORT (180, png_const_charp, png_get_copyright,(png_const_structrp png_ptr))

	PNG_EXPORT (181, png_const_charp, png_get_header_ver,(png_const_structrp png_ptr))

	PNG_EXPORT (182, png_const_charp, png_get_header_version,(png_const_structrp png_ptr))

	PNG_EXPORT (183, png_const_charp, png_get_libpng_ver,(png_const_structrp png_ptr))

	PNG_EXPORT (184, png_uint_32, png_permit_mng_features,(png_structrp png_ptr, png_uint_32 mng_features_permitted))

	PNG_EXPORT (186, void, png_set_user_limits,(png_structrp png_ptr, png_uint_32 user_width_max, png_uint_32 user_height_max))

	PNG_EXPORT (187, png_uint_32, png_get_user_width_max,(png_const_structrp png_ptr))

	PNG_EXPORT (188, png_uint_32, png_get_user_height_max,(png_const_structrp png_ptr))

	PNG_EXPORT (189, void, png_set_chunk_cache_max,(png_structrp png_ptr, png_uint_32 user_chunk_cache_max))

	PNG_EXPORT (190, png_uint_32, png_get_chunk_cache_max,(png_const_structrp png_ptr))

	PNG_EXPORT (191, void, png_set_chunk_malloc_max,(png_structrp png_ptr, png_alloc_size_t user_chunk_cache_max))

	PNG_EXPORT (192, png_alloc_size_t, png_get_chunk_malloc_max,(png_const_structrp png_ptr))

	PNG_EXPORT (193, png_uint_32, png_get_pixels_per_inch,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (194, png_uint_32, png_get_x_pixels_per_inch,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_EXPORT (195, png_uint_32, png_get_y_pixels_per_inch,(png_const_structrp png_ptr, png_const_inforp info_ptr))

	PNG_FP_EXPORT (196, float, png_get_x_offset_inches,(png_const_structrp png_ptr, png_const_inforp info_ptr)) PNG_FIXED_EXPORT(211

png_const_structrp png_const_inforp info_ptr	PNG_FP_EXPORT (197, float, png_get_y_offset_inches,(png_const_structrp png_ptr, png_const_inforp info_ptr)) PNG_FIXED_EXPORT(212

png_const_structrp png_const_inforp info_ptr png_const_structrp png_const_inforp info_ptr	PNG_EXPORT (198, png_uint_32, png_get_pHYs_dpi,(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 res_x, png_uint_32 res_y, int *unit_type))

	PNG_EXPORT (199, png_uint_32, png_get_io_state,(png_const_structrp png_ptr))

	PNG_REMOVED (200, png_const_bytep, png_get_io_chunk_name,(png_structrp png_ptr), PNG_DEPRECATED) PNG_EXPORT(216

	PNG_EXPORT (201, png_uint_32, png_get_uint_32,(png_const_bytep buf))

	PNG_EXPORT (202, png_uint_16, png_get_uint_16,(png_const_bytep buf))

	PNG_EXPORT (203, png_int_32, png_get_int_32,(png_const_bytep buf))

	PNG_EXPORT (204, png_uint_32, png_get_uint_31,(png_const_structrp png_ptr, png_const_bytep buf))

	PNG_EXPORT (205, void, png_save_uint_32,(png_bytep buf, png_uint_32 i))

	PNG_EXPORT (206, void, png_save_int_32,(png_bytep buf, png_int_32 i))

	PNG_EXPORT (207, void, png_save_uint_16,(png_bytep buf, unsigned int i))

	PNG_EXPORT (242, void, png_set_check_for_invalid_index,(png_structrp png_ptr, int allowed))

	PNG_EXPORT (243, int, png_get_palette_max,(png_const_structp png_ptr, png_const_infop info_ptr))

	PNG_EXPORT (234, int, png_image_begin_read_from_file,(png_imagep image, const char *file_name))

	PNG_EXPORT (235, int, png_image_begin_read_from_stdio,(png_imagep image, FILE *file))

	PNG_EXPORT (236, int, png_image_begin_read_from_memory,(png_imagep image, png_const_voidp memory, size_t size))

	PNG_EXPORT (237, int, png_image_finish_read,(png_imagep image, png_const_colorp background, void buffer, png_int_32 row_stride, void colormap))

	PNG_EXPORT (238, void, png_image_free,(png_imagep image))

	PNG_EXPORT (239, int, png_image_write_to_file,(png_imagep image, const char file, int convert_to_8bit, const void buffer, png_int_32 row_stride, const void *colormap))

	PNG_EXPORT (240, int, png_image_write_to_stdio,(png_imagep image, FILE file, int convert_to_8_bit, const void buffer, png_int_32 row_stride, const void *colormap))

	PNG_EXPORT (245, int, png_image_write_to_memory,(png_imagep image, void memory, png_alloc_size_t PNG_RESTRICT memory_bytes, int convert_to_8_bit, const void buffer, png_int_32 row_stride, const void colormap))

	PNG_EXPORT (244, int, png_set_option,(png_structrp png_ptr, int option, int onoff))

Variables
const typedef png_struct *	png_const_structp

const typedef png_info *	png_const_infop

const typedef png_struct *PNG_RESTRICT	png_const_structrp

const typedef png_info *PNG_RESTRICT	png_const_inforp

const typedef png_color *	png_const_colorp

const typedef png_color_16 *	png_const_color_16p

const typedef png_color_8 *	png_const_color_8p

const typedef png_sPLT_entry *	png_const_sPLT_entryp

const typedef png_sPLT_t *	png_const_sPLT_tp

const typedef png_text *	png_const_textp

const typedef png_time *	png_const_timep

const typedef png_unknown_chunk *	png_const_unknown_chunkp

	void

	png_set_rgb_to_gray_fixed

png_structrp	png_ptr

png_structrp int	error_action

png_structrp int png_fixed_point	red

	png_set_alpha_mode_fixed

png_structrp int	mode

	png_set_background_fixed

png_structrp png_const_color_16p	background_color

png_structrp png_const_color_16p int	background_gamma_code

png_structrp png_const_color_16p int int	need_expand

	png_set_gamma_fixed

png_structrp png_fixed_point	screen_gamma

	png_set_filter_heuristics_fixed

png_structrp int	heuristic_method

png_structrp int int	num_weights

png_structrp int int png_const_fixed_point_p	filter_weights

	png_fixed_point

	png_get_pixel_aspect_ratio_fixed

	png_uint_32

	png_get_cHRM_XYZ

png_const_structrp png_const_inforp	info_ptr

png_const_structrp png_const_inforp double *	red_X

png_const_structrp png_const_inforp double double *	red_Y

png_const_structrp png_const_inforp double double double *	red_Z

png_const_structrp png_const_inforp double double double double *	green_X

png_const_structrp png_const_inforp double double double double double *	green_Y

png_const_structrp png_const_inforp double double double double double double *	green_Z

png_const_structrp png_const_inforp double double double double double double double *	blue_X

png_const_structrp png_const_inforp double double double double double double double double *	blue_Y

png_const_structrp png_const_inforp double double double double double double double double double *blue_Z	png_get_cHRM_XYZ_fixed

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point	int_red_X

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point	int_red_Y

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point	int_red_Z

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point	int_green_X

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point	int_green_Y

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point	int_green_Z

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point	int_blue_X

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point	int_blue_Y

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point int_blue_Z	png_set_cHRM_XYZ

png_const_structrp png_const_inforp double double double double double double double double double blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point int_blue_Z png_const_structrp png_inforp double double double double double double double double double blue_Z	png_set_cHRM_XYZ_fixed

	png_get_gAMA_fixed

png_const_structrp png_const_inforp png_fixed_point *int_file_gamma	png_set_gAMA_fixed

	png_get_sCAL_fixed

png_const_structrp png_const_inforp int *	unit

png_const_structrp png_const_inforp int png_fixed_point *	width

	png_set_sCAL_fixed

	png_get_x_offset_inches_fixed

png_const_structrp png_const_inforp info_ptr	png_get_y_offset_inches_fixed

	png_get_io_chunk_type

Macro Definition Documentation

◆ PNG_LIBPNG_VER_STRING

#define PNG_LIBPNG_VER_STRING "1.6.36"

◆ PNG_HEADER_VERSION_STRING

#define PNG_HEADER_VERSION_STRING " libpng version 1.6.36 - December 1, 2018\n"

◆ PNG_LIBPNG_VER_SONUM

#define PNG_LIBPNG_VER_SONUM 16

◆ PNG_LIBPNG_VER_DLLNUM

#define PNG_LIBPNG_VER_DLLNUM 16

◆ PNG_LIBPNG_VER_MAJOR

#define PNG_LIBPNG_VER_MAJOR 1

◆ PNG_LIBPNG_VER_MINOR

#define PNG_LIBPNG_VER_MINOR 6

◆ PNG_LIBPNG_VER_RELEASE

#define PNG_LIBPNG_VER_RELEASE 36

◆ PNG_LIBPNG_VER_BUILD

#define PNG_LIBPNG_VER_BUILD 0

◆ PNG_LIBPNG_BUILD_ALPHA

#define PNG_LIBPNG_BUILD_ALPHA 1

◆ PNG_LIBPNG_BUILD_BETA

#define PNG_LIBPNG_BUILD_BETA 2

◆ PNG_LIBPNG_BUILD_RC

#define PNG_LIBPNG_BUILD_RC 3

◆ PNG_LIBPNG_BUILD_STABLE

#define PNG_LIBPNG_BUILD_STABLE 4

◆ PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK

#define PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7

◆ PNG_LIBPNG_BUILD_PATCH

#define PNG_LIBPNG_BUILD_PATCH

Value:

8 /* Can be OR'ed with

PNG_LIBPNG_BUILD_STABLE only */

◆ PNG_LIBPNG_BUILD_PRIVATE

#define PNG_LIBPNG_BUILD_PRIVATE

Value:

16 /* Cannot be OR'ed with

PNG_LIBPNG_BUILD_SPECIAL */

◆ PNG_LIBPNG_BUILD_SPECIAL

#define PNG_LIBPNG_BUILD_SPECIAL

Value:

32 /* Cannot be OR'ed with

PNG_LIBPNG_BUILD_PRIVATE */

◆ PNG_LIBPNG_BUILD_BASE_TYPE

#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE

◆ PNG_LIBPNG_VER

#define PNG_LIBPNG_VER 10636 /* 1.6.36 */

◆ PNG_LIBPNG_BUILD_TYPE

#define PNG_LIBPNG_BUILD_TYPE (PNG_LIBPNG_BUILD_BASE_TYPE)

◆ png_libpng_ver

#define png_libpng_ver png_get_header_ver(NULL)

◆ PNG_TEXT_COMPRESSION_NONE_WR

#define PNG_TEXT_COMPRESSION_NONE_WR -3

◆ PNG_TEXT_COMPRESSION_zTXt_WR

#define PNG_TEXT_COMPRESSION_zTXt_WR -2

◆ PNG_TEXT_COMPRESSION_NONE

#define PNG_TEXT_COMPRESSION_NONE -1

◆ PNG_TEXT_COMPRESSION_zTXt

#define PNG_TEXT_COMPRESSION_zTXt 0

◆ PNG_ITXT_COMPRESSION_NONE

#define PNG_ITXT_COMPRESSION_NONE 1

◆ PNG_ITXT_COMPRESSION_zTXt

#define PNG_ITXT_COMPRESSION_zTXt 2

◆ PNG_TEXT_COMPRESSION_LAST

#define PNG_TEXT_COMPRESSION_LAST 3 /* Not a valid value */

◆ PNG_HAVE_IHDR

#define PNG_HAVE_IHDR 0x01

◆ PNG_HAVE_PLTE

#define PNG_HAVE_PLTE 0x02

◆ PNG_AFTER_IDAT

#define PNG_AFTER_IDAT 0x08

◆ PNG_UINT_31_MAX

#define PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL)

◆ PNG_UINT_32_MAX

#define PNG_UINT_32_MAX ((png_uint_32)(-1))

◆ PNG_SIZE_MAX

#define PNG_SIZE_MAX ((size_t)(-1))

◆ PNG_FP_1

#define PNG_FP_1 100000

◆ PNG_FP_HALF

#define PNG_FP_HALF 50000

◆ PNG_FP_MAX

#define PNG_FP_MAX ((png_fixed_point)0x7fffffffL)

◆ PNG_FP_MIN

#define PNG_FP_MIN (-PNG_FP_MAX)

◆ PNG_COLOR_MASK_PALETTE

#define PNG_COLOR_MASK_PALETTE 1

◆ PNG_COLOR_MASK_COLOR

#define PNG_COLOR_MASK_COLOR 2

◆ PNG_COLOR_MASK_ALPHA

#define PNG_COLOR_MASK_ALPHA 4

◆ PNG_COLOR_TYPE_GRAY

#define PNG_COLOR_TYPE_GRAY 0

◆ PNG_COLOR_TYPE_PALETTE

#define PNG_COLOR_TYPE_PALETTE (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_PALETTE)

◆ PNG_COLOR_TYPE_RGB

#define PNG_COLOR_TYPE_RGB (PNG_COLOR_MASK_COLOR)

◆ PNG_COLOR_TYPE_RGB_ALPHA

#define PNG_COLOR_TYPE_RGB_ALPHA (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_ALPHA)

◆ PNG_COLOR_TYPE_GRAY_ALPHA

#define PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA)

◆ PNG_COLOR_TYPE_RGBA

#define PNG_COLOR_TYPE_RGBA PNG_COLOR_TYPE_RGB_ALPHA

◆ PNG_COLOR_TYPE_GA

#define PNG_COLOR_TYPE_GA PNG_COLOR_TYPE_GRAY_ALPHA

◆ PNG_COMPRESSION_TYPE_BASE

#define PNG_COMPRESSION_TYPE_BASE 0 /* Deflate method 8, 32K window */

◆ PNG_COMPRESSION_TYPE_DEFAULT

#define PNG_COMPRESSION_TYPE_DEFAULT PNG_COMPRESSION_TYPE_BASE

◆ PNG_FILTER_TYPE_BASE

#define PNG_FILTER_TYPE_BASE 0 /* Single row per-byte filtering */

◆ PNG_INTRAPIXEL_DIFFERENCING

#define PNG_INTRAPIXEL_DIFFERENCING 64 /* Used only in MNG datastreams */

◆ PNG_FILTER_TYPE_DEFAULT

#define PNG_FILTER_TYPE_DEFAULT PNG_FILTER_TYPE_BASE

◆ PNG_INTERLACE_NONE

#define PNG_INTERLACE_NONE 0 /* Non-interlaced image */

◆ PNG_INTERLACE_ADAM7

#define PNG_INTERLACE_ADAM7 1 /* Adam7 interlacing */

◆ PNG_INTERLACE_LAST

#define PNG_INTERLACE_LAST 2 /* Not a valid value */

◆ PNG_OFFSET_PIXEL

#define PNG_OFFSET_PIXEL 0 /* Offset in pixels */

◆ PNG_OFFSET_MICROMETER

#define PNG_OFFSET_MICROMETER 1 /* Offset in micrometers (1/10^6 meter) */

◆ PNG_OFFSET_LAST

#define PNG_OFFSET_LAST 2 /* Not a valid value */

◆ PNG_EQUATION_LINEAR

#define PNG_EQUATION_LINEAR 0 /* Linear transformation */

◆ PNG_EQUATION_BASE_E

#define PNG_EQUATION_BASE_E 1 /* Exponential base e transform */

◆ PNG_EQUATION_ARBITRARY

#define PNG_EQUATION_ARBITRARY 2 /* Arbitrary base exponential transform */

◆ PNG_EQUATION_HYPERBOLIC

#define PNG_EQUATION_HYPERBOLIC 3 /* Hyperbolic sine transformation */

◆ PNG_EQUATION_LAST

#define PNG_EQUATION_LAST 4 /* Not a valid value */

◆ PNG_SCALE_UNKNOWN

#define PNG_SCALE_UNKNOWN 0 /* unknown unit (image scale) */

◆ PNG_SCALE_METER

#define PNG_SCALE_METER 1 /* meters per pixel */

◆ PNG_SCALE_RADIAN

#define PNG_SCALE_RADIAN 2 /* radians per pixel */

◆ PNG_SCALE_LAST

#define PNG_SCALE_LAST 3 /* Not a valid value */

◆ PNG_RESOLUTION_UNKNOWN

#define PNG_RESOLUTION_UNKNOWN 0 /* pixels/unknown unit (aspect ratio) */

◆ PNG_RESOLUTION_METER

#define PNG_RESOLUTION_METER 1 /* pixels/meter */

◆ PNG_RESOLUTION_LAST

#define PNG_RESOLUTION_LAST 2 /* Not a valid value */

◆ PNG_sRGB_INTENT_PERCEPTUAL

#define PNG_sRGB_INTENT_PERCEPTUAL 0

◆ PNG_sRGB_INTENT_RELATIVE

#define PNG_sRGB_INTENT_RELATIVE 1

◆ PNG_sRGB_INTENT_SATURATION

#define PNG_sRGB_INTENT_SATURATION 2

◆ PNG_sRGB_INTENT_ABSOLUTE

#define PNG_sRGB_INTENT_ABSOLUTE 3

◆ PNG_sRGB_INTENT_LAST

#define PNG_sRGB_INTENT_LAST 4 /* Not a valid value */

◆ PNG_KEYWORD_MAX_LENGTH

#define PNG_KEYWORD_MAX_LENGTH 79

◆ PNG_MAX_PALETTE_LENGTH

#define PNG_MAX_PALETTE_LENGTH 256

◆ PNG_INFO_gAMA

#define PNG_INFO_gAMA 0x0001U

◆ PNG_INFO_sBIT

#define PNG_INFO_sBIT 0x0002U

◆ PNG_INFO_cHRM

#define PNG_INFO_cHRM 0x0004U

◆ PNG_INFO_PLTE

#define PNG_INFO_PLTE 0x0008U

◆ PNG_INFO_tRNS

#define PNG_INFO_tRNS 0x0010U

◆ PNG_INFO_bKGD

#define PNG_INFO_bKGD 0x0020U

◆ PNG_INFO_hIST

#define PNG_INFO_hIST 0x0040U

◆ PNG_INFO_pHYs

#define PNG_INFO_pHYs 0x0080U

◆ PNG_INFO_oFFs

#define PNG_INFO_oFFs 0x0100U

◆ PNG_INFO_tIME

#define PNG_INFO_tIME 0x0200U

◆ PNG_INFO_pCAL

#define PNG_INFO_pCAL 0x0400U

◆ PNG_INFO_sRGB

#define PNG_INFO_sRGB 0x0800U /* GR-P, 0.96a */

◆ PNG_INFO_iCCP

#define PNG_INFO_iCCP 0x1000U /* ESR, 1.0.6 */

◆ PNG_INFO_sPLT

#define PNG_INFO_sPLT 0x2000U /* ESR, 1.0.6 */

◆ PNG_INFO_sCAL

#define PNG_INFO_sCAL 0x4000U /* ESR, 1.0.6 */

◆ PNG_INFO_IDAT

#define PNG_INFO_IDAT 0x8000U /* ESR, 1.0.6 */

◆ PNG_INFO_eXIf

#define PNG_INFO_eXIf 0x10000U /* GR-P, 1.6.31 */

◆ PNG_TRANSFORM_IDENTITY

#define PNG_TRANSFORM_IDENTITY 0x0000 /* read and write */

◆ PNG_TRANSFORM_STRIP_16

#define PNG_TRANSFORM_STRIP_16 0x0001 /* read only */

◆ PNG_TRANSFORM_STRIP_ALPHA

#define PNG_TRANSFORM_STRIP_ALPHA 0x0002 /* read only */

◆ PNG_TRANSFORM_PACKING

#define PNG_TRANSFORM_PACKING 0x0004 /* read and write */

◆ PNG_TRANSFORM_PACKSWAP

#define PNG_TRANSFORM_PACKSWAP 0x0008 /* read and write */

◆ PNG_TRANSFORM_EXPAND

#define PNG_TRANSFORM_EXPAND 0x0010 /* read only */

◆ PNG_TRANSFORM_INVERT_MONO

#define PNG_TRANSFORM_INVERT_MONO 0x0020 /* read and write */

◆ PNG_TRANSFORM_SHIFT

#define PNG_TRANSFORM_SHIFT 0x0040 /* read and write */

◆ PNG_TRANSFORM_BGR

#define PNG_TRANSFORM_BGR 0x0080 /* read and write */

◆ PNG_TRANSFORM_SWAP_ALPHA

#define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */

◆ PNG_TRANSFORM_SWAP_ENDIAN

#define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */

◆ PNG_TRANSFORM_INVERT_ALPHA

#define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */

◆ PNG_TRANSFORM_STRIP_FILLER

#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* write only */

◆ PNG_TRANSFORM_STRIP_FILLER_BEFORE

#define PNG_TRANSFORM_STRIP_FILLER_BEFORE PNG_TRANSFORM_STRIP_FILLER

◆ PNG_TRANSFORM_STRIP_FILLER_AFTER

#define PNG_TRANSFORM_STRIP_FILLER_AFTER 0x1000 /* write only */

◆ PNG_TRANSFORM_GRAY_TO_RGB

#define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */

◆ PNG_TRANSFORM_EXPAND_16

#define PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */

◆ PNG_FLAG_MNG_EMPTY_PLTE

#define PNG_FLAG_MNG_EMPTY_PLTE 0x01

◆ PNG_FLAG_MNG_FILTER_64

#define PNG_FLAG_MNG_FILTER_64 0x04

◆ PNG_ALL_MNG_FEATURES

#define PNG_ALL_MNG_FEATURES 0x05

◆ png_check_sig

#define png_check_sig	(	sig,
		n
	)	!png_sig_cmp((sig), 0, (n))

◆ png_jmpbuf

#define png_jmpbuf ( png_ptr ) (*png_set_longjmp_fn((png_ptr), longjmp, (sizeof (jmp_buf))))

◆ PNG_ERROR_ACTION_NONE

#define PNG_ERROR_ACTION_NONE 1

◆ PNG_ERROR_ACTION_WARN

#define PNG_ERROR_ACTION_WARN 2

◆ PNG_ERROR_ACTION_ERROR

#define PNG_ERROR_ACTION_ERROR 3

◆ PNG_RGB_TO_GRAY_DEFAULT

#define PNG_RGB_TO_GRAY_DEFAULT (-1)/*for red/green coefficients*/

◆ PNG_ALPHA_PNG

#define PNG_ALPHA_PNG 0 /* according to the PNG standard */

◆ PNG_ALPHA_STANDARD

#define PNG_ALPHA_STANDARD 1 /* according to Porter/Duff */

◆ PNG_ALPHA_ASSOCIATED

#define PNG_ALPHA_ASSOCIATED 1 /* as above; this is the normal practice */

◆ PNG_ALPHA_PREMULTIPLIED

#define PNG_ALPHA_PREMULTIPLIED 1 /* as above */

◆ PNG_ALPHA_OPTIMIZED

#define PNG_ALPHA_OPTIMIZED 2 /* 'PNG' for opaque pixels, else 'STANDARD' */

◆ PNG_ALPHA_BROKEN

#define PNG_ALPHA_BROKEN 3 /* the alpha channel is gamma encoded */

◆ PNG_DEFAULT_sRGB

#define PNG_DEFAULT_sRGB -1 /* sRGB gamma and color space */

◆ PNG_GAMMA_MAC_18

#define PNG_GAMMA_MAC_18 -2 /* Old Mac '1.8' gamma and color space */

◆ PNG_GAMMA_sRGB

#define PNG_GAMMA_sRGB 220000 /* Television standards--matches sRGB gamma */

◆ PNG_GAMMA_LINEAR

#define PNG_GAMMA_LINEAR PNG_FP_1 /* Linear */

◆ PNG_FILLER_BEFORE

#define PNG_FILLER_BEFORE 0

◆ PNG_FILLER_AFTER

#define PNG_FILLER_AFTER 1

◆ PNG_BACKGROUND_GAMMA_UNKNOWN

#define PNG_BACKGROUND_GAMMA_UNKNOWN 0

◆ PNG_BACKGROUND_GAMMA_SCREEN

#define PNG_BACKGROUND_GAMMA_SCREEN 1

◆ PNG_BACKGROUND_GAMMA_FILE

#define PNG_BACKGROUND_GAMMA_FILE 2

◆ PNG_BACKGROUND_GAMMA_UNIQUE

#define PNG_BACKGROUND_GAMMA_UNIQUE 3

◆ PNG_READ_16_TO_8_SUPPORTED

#define PNG_READ_16_TO_8_SUPPORTED /* Name prior to 1.5.4 */

◆ PNG_GAMMA_THRESHOLD

#define PNG_GAMMA_THRESHOLD (PNG_GAMMA_THRESHOLD_FIXED*.00001)

◆ PNG_CRC_DEFAULT

#define PNG_CRC_DEFAULT 0 /* error/quit warn/discard data */

◆ PNG_CRC_ERROR_QUIT

#define PNG_CRC_ERROR_QUIT 1 /* error/quit error/quit */

◆ PNG_CRC_WARN_DISCARD

#define PNG_CRC_WARN_DISCARD 2 /* (INVALID) warn/discard data */

◆ PNG_CRC_WARN_USE

#define PNG_CRC_WARN_USE 3 /* warn/use data warn/use data */

◆ PNG_CRC_QUIET_USE

#define PNG_CRC_QUIET_USE 4 /* quiet/use data quiet/use data */

◆ PNG_CRC_NO_CHANGE

#define PNG_CRC_NO_CHANGE 5 /* use current value use current value */

◆ PNG_NO_FILTERS

#define PNG_NO_FILTERS 0x00

◆ PNG_FILTER_NONE

#define PNG_FILTER_NONE 0x08

◆ PNG_FILTER_SUB

#define PNG_FILTER_SUB 0x10

◆ PNG_FILTER_UP

#define PNG_FILTER_UP 0x20

◆ PNG_FILTER_AVG

#define PNG_FILTER_AVG 0x40

◆ PNG_FILTER_PAETH

#define PNG_FILTER_PAETH 0x80

◆ PNG_FAST_FILTERS

#define PNG_FAST_FILTERS (PNG_FILTER_NONE | PNG_FILTER_SUB | PNG_FILTER_UP)

◆ PNG_ALL_FILTERS

#define PNG_ALL_FILTERS (PNG_FAST_FILTERS | PNG_FILTER_AVG | PNG_FILTER_PAETH)

◆ PNG_FILTER_VALUE_NONE

#define PNG_FILTER_VALUE_NONE 0

◆ PNG_FILTER_VALUE_SUB

#define PNG_FILTER_VALUE_SUB 1

◆ PNG_FILTER_VALUE_UP

#define PNG_FILTER_VALUE_UP 2

◆ PNG_FILTER_VALUE_AVG

#define PNG_FILTER_VALUE_AVG 3

◆ PNG_FILTER_VALUE_PAETH

#define PNG_FILTER_VALUE_PAETH 4

◆ PNG_FILTER_VALUE_LAST

#define PNG_FILTER_VALUE_LAST 5

◆ PNG_FILTER_HEURISTIC_DEFAULT

#define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */

◆ PNG_FILTER_HEURISTIC_UNWEIGHTED

#define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */

◆ PNG_FILTER_HEURISTIC_WEIGHTED

#define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */

◆ PNG_FILTER_HEURISTIC_LAST

#define PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */

◆ PNG_DESTROY_WILL_FREE_DATA

#define PNG_DESTROY_WILL_FREE_DATA 1

◆ PNG_SET_WILL_FREE_DATA

#define PNG_SET_WILL_FREE_DATA 1

◆ PNG_USER_WILL_FREE_DATA

#define PNG_USER_WILL_FREE_DATA 2

◆ PNG_FREE_HIST

#define PNG_FREE_HIST 0x0008U

◆ PNG_FREE_ICCP

#define PNG_FREE_ICCP 0x0010U

◆ PNG_FREE_SPLT

#define PNG_FREE_SPLT 0x0020U

◆ PNG_FREE_ROWS

#define PNG_FREE_ROWS 0x0040U

◆ PNG_FREE_PCAL

#define PNG_FREE_PCAL 0x0080U

◆ PNG_FREE_SCAL

#define PNG_FREE_SCAL 0x0100U

◆ PNG_FREE_UNKN

#define PNG_FREE_UNKN 0x0200U

◆ PNG_FREE_PLTE

#define PNG_FREE_PLTE 0x1000U

◆ PNG_FREE_TRNS

#define PNG_FREE_TRNS 0x2000U

◆ PNG_FREE_TEXT

#define PNG_FREE_TEXT 0x4000U

◆ PNG_FREE_EXIF

#define PNG_FREE_EXIF 0x8000U /* Added at libpng-1.6.31 */

◆ PNG_FREE_ALL

#define PNG_FREE_ALL 0xffffU

◆ PNG_FREE_MUL

#define PNG_FREE_MUL 0x4220U /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */

◆ PNG_HANDLE_CHUNK_AS_DEFAULT

#define PNG_HANDLE_CHUNK_AS_DEFAULT 0

◆ PNG_HANDLE_CHUNK_NEVER

#define PNG_HANDLE_CHUNK_NEVER 1

◆ PNG_HANDLE_CHUNK_IF_SAFE

#define PNG_HANDLE_CHUNK_IF_SAFE 2

◆ PNG_HANDLE_CHUNK_ALWAYS

#define PNG_HANDLE_CHUNK_ALWAYS 3

◆ PNG_HANDLE_CHUNK_LAST

#define PNG_HANDLE_CHUNK_LAST 4

◆ PNG_IO_NONE

#define PNG_IO_NONE 0x0000 /* no I/O at this moment */

◆ PNG_IO_READING

#define PNG_IO_READING 0x0001 /* currently reading */

◆ PNG_IO_WRITING

#define PNG_IO_WRITING 0x0002 /* currently writing */

◆ PNG_IO_SIGNATURE

#define PNG_IO_SIGNATURE 0x0010 /* currently at the file signature */

◆ PNG_IO_CHUNK_HDR

#define PNG_IO_CHUNK_HDR 0x0020 /* currently at the chunk header */

◆ PNG_IO_CHUNK_DATA

#define PNG_IO_CHUNK_DATA 0x0040 /* currently at the chunk data */

◆ PNG_IO_CHUNK_CRC

#define PNG_IO_CHUNK_CRC 0x0080 /* currently at the chunk crc */

◆ PNG_IO_MASK_OP

#define PNG_IO_MASK_OP 0x000f /* current operation: reading/writing */

◆ PNG_IO_MASK_LOC

#define PNG_IO_MASK_LOC 0x00f0 /* current location: sig/hdr/data/crc */

◆ PNG_INTERLACE_ADAM7_PASSES

#define PNG_INTERLACE_ADAM7_PASSES 7

◆ PNG_PASS_START_ROW

#define PNG_PASS_START_ROW ( pass ) (((1&~(pass))<<(3-((pass)>>1)))&7)

◆ PNG_PASS_START_COL

#define PNG_PASS_START_COL ( pass ) (((1& (pass))<<(3-(((pass)+1)>>1)))&7)

◆ PNG_PASS_ROW_OFFSET

#define PNG_PASS_ROW_OFFSET ( pass ) ((pass)>2?(8>>(((pass)-1)>>1)):8)

◆ PNG_PASS_COL_OFFSET

#define PNG_PASS_COL_OFFSET ( pass ) (1<<((7-(pass))>>1))

◆ PNG_PASS_ROW_SHIFT

#define PNG_PASS_ROW_SHIFT ( pass ) ((pass)>2?(8-(pass))>>1:3)

◆ PNG_PASS_COL_SHIFT

#define PNG_PASS_COL_SHIFT ( pass ) ((pass)>1?(7-(pass))>>1:3)

◆ PNG_PASS_ROWS

#define PNG_PASS_ROWS	(	height,
		pass
	)

Value:

(((height)+(((1<<PNG_PASS_ROW_SHIFT(pass))\

-1)-PNG_PASS_START_ROW(pass)))>>PNG_PASS_ROW_SHIFT(pass))

◆ PNG_PASS_COLS

#define PNG_PASS_COLS	(	width,
		pass
	)

Value:

(((width)+(((1<<PNG_PASS_COL_SHIFT(pass))\

-1)-PNG_PASS_START_COL(pass)))>>PNG_PASS_COL_SHIFT(pass))

◆ PNG_ROW_FROM_PASS_ROW

#define PNG_ROW_FROM_PASS_ROW	(	y_in,
		pass
	)	(((y_in)<<PNG_PASS_ROW_SHIFT(pass))+PNG_PASS_START_ROW(pass))

◆ PNG_COL_FROM_PASS_COL

#define PNG_COL_FROM_PASS_COL	(	x_in,
		pass
	)	(((x_in)<<PNG_PASS_COL_SHIFT(pass))+PNG_PASS_START_COL(pass))

◆ PNG_PASS_MASK

#define PNG_PASS_MASK	(	pass,
		off
	)

Value:

( \
   ((0x110145AF>>(((7-(off))-(pass))<<2)) & 0xF) | \
   ((0x01145AF0>>(((7-(off))-(pass))<<2)) & 0xF0))

◆ PNG_ROW_IN_INTERLACE_PASS

#define PNG_ROW_IN_INTERLACE_PASS	(	y,
		pass
	)	((PNG_PASS_MASK(pass,0) >> ((y)&7)) & 1)

◆ PNG_COL_IN_INTERLACE_PASS

#define PNG_COL_IN_INTERLACE_PASS	(	x,
		pass
	)	((PNG_PASS_MASK(pass,1) >> ((x)&7)) & 1)

◆ png_composite

#define png_composite	(	composite,
		fg,
		alpha,
		bg
	)

Value:

{                                                     \
      png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) \
          * (png_uint_16)(alpha)                         \
          + (png_uint_16)(bg)*(png_uint_16)(255          \
          - (png_uint_16)(alpha)) + 128);                \
      (composite) = (png_byte)(((temp + (temp >> 8)) >> 8) & 0xff); \
   }

◆ png_composite_16

#define png_composite_16	(	composite,
		fg,
		alpha,
		bg
	)

Value:

{                                                     \
      png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) \
          * (png_uint_32)(alpha)                         \
          + (png_uint_32)(bg)*(65535                     \
          - (png_uint_32)(alpha)) + 32768);              \
      (composite) = (png_uint_16)(0xffff & ((temp + (temp >> 16)) >> 16)); \
   }

◆ PNG_get_uint_32

#define PNG_get_uint_32 ( buf )

Value:

(((png_uint_32)(*(buf)) << 24) + \
    ((png_uint_32)(*((buf) + 1)) << 16) + \
    ((png_uint_32)(*((buf) + 2)) << 8) + \
    ((png_uint_32)(*((buf) + 3))))

◆ PNG_get_uint_16

#define PNG_get_uint_16 ( buf )

Value:

((png_uint_16) \
    (((unsigned int)(*(buf)) << 8) + \
    ((unsigned int)(*((buf) + 1)))))

◆ PNG_get_int_32

#define PNG_get_int_32 ( buf )

Value:

((png_int_32)((*(buf) & 0x80) \
    ? -((png_int_32)(((png_get_uint_32(buf)^0xffffffffU)+1U)&0x7fffffffU)) \
    : (png_int_32)png_get_uint_32(buf)))

◆ png_get_uint_32

#define png_get_uint_32 ( buf ) PNG_get_uint_32(buf)

◆ png_get_uint_16

#define png_get_uint_16 ( buf ) PNG_get_uint_16(buf)

◆ png_get_int_32

#define png_get_int_32 ( buf ) PNG_get_int_32(buf)

◆ PNG_IMAGE_VERSION

#define PNG_IMAGE_VERSION 1

◆ PNG_IMAGE_WARNING

#define PNG_IMAGE_WARNING 1

◆ PNG_IMAGE_ERROR

#define PNG_IMAGE_ERROR 2

◆ PNG_IMAGE_FAILED

#define PNG_IMAGE_FAILED ( png_cntrl ) ((((png_cntrl).warning_or_error)&0x03)>1)

◆ PNG_FORMAT_FLAG_ALPHA

#define PNG_FORMAT_FLAG_ALPHA 0x01U /* format with an alpha channel */

◆ PNG_FORMAT_FLAG_COLOR

#define PNG_FORMAT_FLAG_COLOR 0x02U /* color format: otherwise grayscale */

◆ PNG_FORMAT_FLAG_LINEAR

#define PNG_FORMAT_FLAG_LINEAR 0x04U /* 2-byte channels else 1-byte */

◆ PNG_FORMAT_FLAG_COLORMAP

#define PNG_FORMAT_FLAG_COLORMAP 0x08U /* image data is color-mapped */

◆ PNG_FORMAT_FLAG_BGR

#define PNG_FORMAT_FLAG_BGR 0x10U /* BGR colors, else order is RGB */

◆ PNG_FORMAT_FLAG_AFIRST

#define PNG_FORMAT_FLAG_AFIRST 0x20U /* alpha channel comes first */

◆ PNG_FORMAT_FLAG_ASSOCIATED_ALPHA

#define PNG_FORMAT_FLAG_ASSOCIATED_ALPHA 0x40U /* alpha channel is associated */

◆ PNG_FORMAT_GRAY

#define PNG_FORMAT_GRAY 0

◆ PNG_FORMAT_GA

#define PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA

◆ PNG_FORMAT_AG

#define PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST)

◆ PNG_FORMAT_RGB

#define PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR

◆ PNG_FORMAT_BGR

#define PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR)

◆ PNG_FORMAT_RGBA

#define PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA)

◆ PNG_FORMAT_ARGB

#define PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST)

◆ PNG_FORMAT_BGRA

#define PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA)

◆ PNG_FORMAT_ABGR

#define PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST)

◆ PNG_FORMAT_LINEAR_Y

#define PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR

◆ PNG_FORMAT_LINEAR_Y_ALPHA

#define PNG_FORMAT_LINEAR_Y_ALPHA (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA)

◆ PNG_FORMAT_LINEAR_RGB

#define PNG_FORMAT_LINEAR_RGB (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR)

◆ PNG_FORMAT_LINEAR_RGB_ALPHA

#define PNG_FORMAT_LINEAR_RGB_ALPHA (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA)

◆ PNG_FORMAT_RGB_COLORMAP

#define PNG_FORMAT_RGB_COLORMAP (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_COLORMAP)

◆ PNG_FORMAT_BGR_COLORMAP

#define PNG_FORMAT_BGR_COLORMAP (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_COLORMAP)

◆ PNG_FORMAT_RGBA_COLORMAP

#define PNG_FORMAT_RGBA_COLORMAP (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_COLORMAP)

◆ PNG_FORMAT_ARGB_COLORMAP

#define PNG_FORMAT_ARGB_COLORMAP (PNG_FORMAT_ARGB|PNG_FORMAT_FLAG_COLORMAP)

◆ PNG_FORMAT_BGRA_COLORMAP

#define PNG_FORMAT_BGRA_COLORMAP (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_COLORMAP)

◆ PNG_FORMAT_ABGR_COLORMAP

#define PNG_FORMAT_ABGR_COLORMAP (PNG_FORMAT_ABGR|PNG_FORMAT_FLAG_COLORMAP)

◆ PNG_IMAGE_SAMPLE_CHANNELS

#define PNG_IMAGE_SAMPLE_CHANNELS ( fmt ) (((fmt)&(PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA))+1)

◆ PNG_IMAGE_SAMPLE_COMPONENT_SIZE

#define PNG_IMAGE_SAMPLE_COMPONENT_SIZE ( fmt ) ((((fmt) & PNG_FORMAT_FLAG_LINEAR) >> 2)+1)

◆ PNG_IMAGE_SAMPLE_SIZE

#define PNG_IMAGE_SAMPLE_SIZE ( fmt ) (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt))

◆ PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS

#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS ( fmt ) (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256)

◆ PNG_IMAGE_PIXEL_

#define PNG_IMAGE_PIXEL_	(	test,
		fmt
	)	(((fmt)&PNG_FORMAT_FLAG_COLORMAP)?1:test(fmt))

◆ PNG_IMAGE_PIXEL_CHANNELS

#define PNG_IMAGE_PIXEL_CHANNELS ( fmt ) PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_CHANNELS,fmt)

◆ PNG_IMAGE_PIXEL_COMPONENT_SIZE

#define PNG_IMAGE_PIXEL_COMPONENT_SIZE ( fmt ) PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_COMPONENT_SIZE,fmt)

◆ PNG_IMAGE_PIXEL_SIZE

#define PNG_IMAGE_PIXEL_SIZE ( fmt ) PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_SIZE,fmt)

◆ PNG_IMAGE_ROW_STRIDE

#define PNG_IMAGE_ROW_STRIDE ( image ) (PNG_IMAGE_PIXEL_CHANNELS((image).format) * (image).width)

◆ PNG_IMAGE_BUFFER_SIZE

#define PNG_IMAGE_BUFFER_SIZE	(	image,
		row_stride
	)	(PNG_IMAGE_PIXEL_COMPONENT_SIZE((image).format)(image).height(row_stride))

◆ PNG_IMAGE_SIZE

#define PNG_IMAGE_SIZE ( image ) PNG_IMAGE_BUFFER_SIZE(image, PNG_IMAGE_ROW_STRIDE(image))

◆ PNG_IMAGE_COLORMAP_SIZE

#define PNG_IMAGE_COLORMAP_SIZE ( image ) (PNG_IMAGE_SAMPLE_SIZE((image).format) * (image).colormap_entries)

◆ PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB

#define PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB 0x01

◆ PNG_IMAGE_FLAG_FAST

#define PNG_IMAGE_FLAG_FAST 0x02

◆ PNG_IMAGE_FLAG_16BIT_sRGB

#define PNG_IMAGE_FLAG_16BIT_sRGB 0x04

◆ png_image_write_get_memory_size

#define png_image_write_get_memory_size	(	image,
		size,
		convert_to_8_bit,
		buffer,
		row_stride,
		colormap
	)

Value:

png_image_write_to_memory(&(image), 0, &(size), convert_to_8_bit, buffer,\

row_stride, colormap)

◆ PNG_IMAGE_DATA_SIZE

#define PNG_IMAGE_DATA_SIZE ( image ) (PNG_IMAGE_SIZE(image)+(image).height)

◆ PNG_ZLIB_MAX_SIZE

#define PNG_ZLIB_MAX_SIZE ( b ) ((b)+(((b)+7U)>>3)+(((b)+63U)>>6)+11U)

◆ PNG_IMAGE_COMPRESSED_SIZE_MAX

#define PNG_IMAGE_COMPRESSED_SIZE_MAX ( image ) PNG_ZLIB_MAX_SIZE((png_alloc_size_t)PNG_IMAGE_DATA_SIZE(image))

◆ PNG_IMAGE_PNG_SIZE_MAX_

#define PNG_IMAGE_PNG_SIZE_MAX_	(	image,
		image_size
	)

Value:

((8U/*sig*/+25U/*IHDR*/+16U/*gAMA*/+44U/*cHRM*/+12U/*IEND*/+\
    (((image).format&PNG_FORMAT_FLAG_COLORMAP)?/*colormap: PLTE, tRNS*/\
    12U+3U*(image).colormap_entries/*PLTE data*/+\
    (((image).format&PNG_FORMAT_FLAG_ALPHA)?\
    12U/*tRNS*/+(image).colormap_entries:0U):0U)+\
    12U)+(12U*((image_size)/PNG_ZBUF_SIZE))/*IDAT*/+(image_size))

◆ PNG_IMAGE_PNG_SIZE_MAX

#define PNG_IMAGE_PNG_SIZE_MAX ( image ) PNG_IMAGE_PNG_SIZE_MAX_(image, PNG_IMAGE_COMPRESSED_SIZE_MAX(image))

◆ PNG_MAXIMUM_INFLATE_WINDOW

#define PNG_MAXIMUM_INFLATE_WINDOW 2 /* SOFTWARE: force maximum window */

◆ PNG_SKIP_sRGB_CHECK_PROFILE

#define PNG_SKIP_sRGB_CHECK_PROFILE 4 /* SOFTWARE: Check ICC profile for sRGB */

◆ PNG_IGNORE_ADLER32

#define PNG_IGNORE_ADLER32 8

◆ PNG_OPTION_NEXT

#define PNG_OPTION_NEXT 12 /* Next option - numbers must be even */

◆ PNG_OPTION_UNSET

#define PNG_OPTION_UNSET 0 /* Unset - defaults to off */

◆ PNG_OPTION_INVALID

#define PNG_OPTION_INVALID 1 /* Option number out of range */

◆ PNG_OPTION_OFF

#define PNG_OPTION_OFF 2

◆ PNG_OPTION_ON

#define PNG_OPTION_ON 3

Typedef Documentation

◆ png_libpng_version_1_6_36

typedef char* png_libpng_version_1_6_36

◆ png_struct

typedef struct png_struct_def png_struct

◆ png_structp

typedef png_struct* png_structp

◆ png_structpp

typedef png_struct* * png_structpp

◆ png_info

typedef struct png_info_def png_info

◆ png_infop

typedef png_info* png_infop

◆ png_infopp

typedef png_info* * png_infopp

◆ png_structrp

typedef png_struct* PNG_RESTRICT png_structrp

◆ png_inforp

typedef png_info* PNG_RESTRICT png_inforp

◆ png_color

typedef struct png_color_struct png_color

◆ png_colorp

typedef png_color* png_colorp

◆ png_colorpp

typedef png_color* * png_colorpp

◆ png_color_16

typedef struct png_color_16_struct png_color_16

◆ png_color_16p

typedef png_color_16* png_color_16p

◆ png_color_16pp

typedef png_color_16* * png_color_16pp

◆ png_color_8

typedef struct png_color_8_struct png_color_8

◆ png_color_8p

typedef png_color_8* png_color_8p

◆ png_color_8pp

typedef png_color_8* * png_color_8pp

◆ png_sPLT_entry

typedef struct png_sPLT_entry_struct png_sPLT_entry

◆ png_sPLT_entryp

typedef png_sPLT_entry* png_sPLT_entryp

◆ png_sPLT_entrypp

typedef png_sPLT_entry* * png_sPLT_entrypp

◆ png_sPLT_t

typedef struct png_sPLT_struct png_sPLT_t

◆ png_sPLT_tp

typedef png_sPLT_t* png_sPLT_tp

◆ png_sPLT_tpp

typedef png_sPLT_t* * png_sPLT_tpp

◆ png_text

typedef struct png_text_struct png_text

◆ png_textp

typedef png_text* png_textp

◆ png_textpp

typedef png_text* * png_textpp

◆ png_time

typedef struct png_time_struct png_time

◆ png_timep

typedef png_time* png_timep

◆ png_timepp

typedef png_time* * png_timepp

◆ png_unknown_chunk

typedef struct png_unknown_chunk_t png_unknown_chunk

◆ png_unknown_chunkp

typedef png_unknown_chunk* png_unknown_chunkp

◆ png_unknown_chunkpp

typedef png_unknown_chunk* * png_unknown_chunkpp

◆ png_row_info

typedef struct png_row_info_struct png_row_info

◆ png_row_infop

typedef png_row_info* png_row_infop

◆ png_row_infopp

typedef png_row_info* * png_row_infopp

◆ png_controlp

typedef struct png_control* png_controlp

◆ png_imagep

typedef struct png_image * png_imagep

Function Documentation

◆ PNG_CALLBACK() [1/10]

typedef PNG_CALLBACK	(	void	,
		*	png_error_ptr,
		(png_structp, png_const_charp)
	)

◆ PNG_CALLBACK() [2/10]

typedef PNG_CALLBACK	(	void	,
		*	png_rw_ptr,
		(png_structp, png_bytep, size_t)
	)

◆ PNG_CALLBACK() [3/10]

typedef PNG_CALLBACK	(	void	,
		*	png_flush_ptr,
		(png_structp)
	)

◆ PNG_CALLBACK() [4/10]

typedef PNG_CALLBACK	(	void	,
		*	png_read_status_ptr,
		(png_structp, png_uint_32, int)
	)

◆ PNG_CALLBACK() [5/10]

typedef PNG_CALLBACK	(	void	,
		*	png_progressive_info_ptr,
		(png_structp, png_infop)
	)

◆ PNG_CALLBACK() [6/10]

typedef PNG_CALLBACK	(	void	,
		*	png_progressive_row_ptr,
		(png_structp, png_bytep, png_uint_32, int)
	)

◆ PNG_CALLBACK() [7/10]

typedef PNG_CALLBACK	(	void	,
		*	png_user_transform_ptr,
		(png_structp, png_row_infop, png_bytep)
	)

◆ PNG_CALLBACK() [8/10]

typedef PNG_CALLBACK	(	int	,
		*	png_user_chunk_ptr,
		(png_structp, png_unknown_chunkp)
	)

◆ PNG_FUNCTION()

PNG_FUNCTION	(	void	,
		(PNGCAPI *png_longjmp_ptr)	,
		PNGARG((jmp_buf, int))	,
		typedef
	)

◆ PNG_CALLBACK() [9/10]

typedef PNG_CALLBACK	(	png_voidp	,
		*	png_malloc_ptr,
		(png_structp, png_alloc_size_t)
	)

◆ PNG_CALLBACK() [10/10]

typedef PNG_CALLBACK	(	void	,
		*	png_free_ptr,
		(png_structp, png_voidp)
	)

◆ PNG_EXPORT() [1/197]

PNG_EXPORT	(	1	,
		png_uint_32	,
		png_access_version_number	,
		(void)
	)

◆ PNG_EXPORT() [2/197]

PNG_EXPORT	(	2	,
		void	,
		png_set_sig_bytes	,
		(png_structrp png_ptr, int num_bytes)
	)

◆ PNG_EXPORT() [3/197]

PNG_EXPORT	(	3	,
		int	,
		png_sig_cmp	,
		(png_const_bytep sig, size_t start, size_t num_to_check)
	)

◆ PNG_EXPORTA() [1/16]

PNG_EXPORTA	(	4	,
		png_structp	,
		png_create_read_struct	,
		(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn)	,
		PNG_ALLOCATED
	)

◆ PNG_EXPORTA() [2/16]

PNG_EXPORTA	(	5	,
		png_structp	,
		png_create_write_struct	,
		(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn)	,
		PNG_ALLOCATED
	)

◆ PNG_EXPORT() [4/197]

PNG_EXPORT	(	6	,
		size_t	,
		png_get_compression_buffer_size	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [5/197]

PNG_EXPORT	(	7	,
		void	,
		png_set_compression_buffer_size	,
		(png_structrp png_ptr, size_t size)
	)

◆ PNG_EXPORT() [6/197]

PNG_EXPORT	(	8	,
		jmp_buf *	,
		png_set_longjmp_fn	,
		(png_structrp png_ptr, png_longjmp_ptr longjmp_fn, size_t jmp_buf_size)
	)

◆ PNG_EXPORTA() [3/16]

PNG_EXPORTA	(	9	,
		void	,
		png_longjmp	,
		(png_const_structrp png_ptr, int val)	,
		PNG_NORETURN
	)

◆ PNG_EXPORTA() [4/16]

PNG_EXPORTA	(	10	,
		int	,
		png_reset_zstream	,
		(png_structrp png_ptr)	,
		PNG_DEPRECATED
	)

◆ PNG_EXPORTA() [5/16]

PNG_EXPORTA	(	11	,
		png_structp	,
		png_create_read_struct_2	,
		(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)	,
		PNG_ALLOCATED
	)

◆ PNG_EXPORTA() [6/16]

PNG_EXPORTA	(	12	,
		png_structp	,
		png_create_write_struct_2	,
		(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)	,
		PNG_ALLOCATED
	)

◆ PNG_EXPORT() [7/197]

PNG_EXPORT	(	13	,
		void	,
		png_write_sig	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [8/197]

PNG_EXPORT	(	14	,
		void	,
		png_write_chunk	,
		(png_structrp png_ptr, png_const_bytep chunk_name, png_const_bytep data, size_t length)
	)

◆ PNG_EXPORT() [9/197]

PNG_EXPORT	(	15	,
		void	,
		png_write_chunk_start	,
		(png_structrp png_ptr, png_const_bytep chunk_name, png_uint_32 length)
	)

◆ PNG_EXPORT() [10/197]

PNG_EXPORT	(	16	,
		void	,
		png_write_chunk_data	,
		(png_structrp png_ptr, png_const_bytep data, size_t length)
	)

◆ PNG_EXPORT() [11/197]

PNG_EXPORT	(	17	,
		void	,
		png_write_chunk_end	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORTA() [7/16]

PNG_EXPORTA	(	18	,
		png_infop	,
		png_create_info_struct	,
		(png_const_structrp png_ptr)	,
		PNG_ALLOCATED
	)

◆ PNG_EXPORTA() [8/16]

PNG_EXPORTA	(	19	,
		void	,
		png_info_init_3	,
		(png_infopp info_ptr, size_t png_info_struct_size)	,
		PNG_DEPRECATED
	)

◆ PNG_EXPORT() [12/197]

PNG_EXPORT	(	20	,
		void	,
		png_write_info_before_PLTE	,
		(png_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [13/197]

PNG_EXPORT	(	21	,
		void	,
		png_write_info	,
		(png_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [14/197]

PNG_EXPORT	(	22	,
		void	,
		png_read_info	,
		(png_structrp png_ptr, png_inforp info_ptr)
	)

◆ PNG_EXPORTA() [9/16]

PNG_EXPORTA	(	23	,
		png_const_charp	,
		png_convert_to_rfc1123	,
		(png_structrp png_ptr, png_const_timep ptime)	,
		PNG_DEPRECATED
	)

◆ PNG_EXPORT() [15/197]

PNG_EXPORT	(	241	,
		int	,
		png_convert_to_rfc1123_buffer	,
		(char out[29], png_const_timep ptime)
	)

◆ PNG_EXPORT() [16/197]

PNG_EXPORT	(	24	,
		void	,
		png_convert_from_struct_tm	,
		(png_timep ptime, const struct tm *ttime)
	)

◆ PNG_EXPORT() [17/197]

PNG_EXPORT	(	25	,
		void	,
		png_convert_from_time_t	,
		(png_timep ptime, time_t ttime)
	)

◆ PNG_EXPORT() [18/197]

PNG_EXPORT	(	26	,
		void	,
		png_set_expand	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [19/197]

PNG_EXPORT	(	27	,
		void	,
		png_set_expand_gray_1_2_4_to_8	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [20/197]

PNG_EXPORT	(	28	,
		void	,
		png_set_palette_to_rgb	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [21/197]

PNG_EXPORT	(	29	,
		void	,
		png_set_tRNS_to_alpha	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [22/197]

PNG_EXPORT	(	221	,
		void	,
		png_set_expand_16	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [23/197]

PNG_EXPORT	(	30	,
		void	,
		png_set_bgr	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [24/197]

PNG_EXPORT	(	31	,
		void	,
		png_set_gray_to_rgb	,
		(png_structrp png_ptr)
	)

◆ PNG_FP_EXPORT() [1/14]

PNG_FP_EXPORT	(	32	,
		void	,
		png_set_rgb_to_gray	,
		(png_structrp png_ptr, int error_action, double red, double green)
	)

◆ PNG_EXPORT() [25/197]

png_structrp int png_fixed_point png_fixed_point green PNG_EXPORT	(	34	,
		png_byte	,
		png_get_rgb_to_gray_status	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [26/197]

PNG_EXPORT	(	35	,
		void	,
		png_build_grayscale_palette	,
		(int bit_depth, png_colorp palette)
	)

◆ PNG_FP_EXPORT() [2/14]

PNG_FP_EXPORT	(	227	,
		void	,
		png_set_alpha_mode	,
		(png_structrp png_ptr, int mode, double output_gamma)
	)

◆ PNG_EXPORT() [27/197]

PNG_EXPORT	(	36	,
		void	,
		png_set_strip_alpha	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [28/197]

PNG_EXPORT	(	37	,
		void	,
		png_set_swap_alpha	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [29/197]

PNG_EXPORT	(	38	,
		void	,
		png_set_invert_alpha	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [30/197]

PNG_EXPORT	(	39	,
		void	,
		png_set_filler	,
		(png_structrp png_ptr, png_uint_32 filler, int flags)
	)

◆ PNG_EXPORT() [31/197]

PNG_EXPORT	(	40	,
		void	,
		png_set_add_alpha	,
		(png_structrp png_ptr, png_uint_32 filler, int flags)
	)

◆ PNG_EXPORT() [32/197]

PNG_EXPORT	(	41	,
		void	,
		png_set_swap	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [33/197]

PNG_EXPORT	(	42	,
		void	,
		png_set_packing	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [34/197]

PNG_EXPORT	(	43	,
		void	,
		png_set_packswap	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [35/197]

PNG_EXPORT	(	44	,
		void	,
		png_set_shift	,
		(png_structrp png_ptr, png_const_color_8p true_bits)
	)

◆ PNG_EXPORT() [36/197]

PNG_EXPORT	(	45	,
		int	,
		png_set_interlace_handling	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [37/197]

PNG_EXPORT	(	46	,
		void	,
		png_set_invert_mono	,
		(png_structrp png_ptr)
	)

◆ PNG_FP_EXPORT() [3/14]

PNG_FP_EXPORT	(	47	,
		void	,
		png_set_background	,
		(png_structrp png_ptr, png_const_color_16p background_color, int background_gamma_code, int need_expand, double background_gamma)
	)

◆ PNG_EXPORT() [38/197]

PNG_EXPORT	(	229	,
		void	,
		png_set_scale_16	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [39/197]

PNG_EXPORT	(	48	,
		void	,
		png_set_strip_16	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [40/197]

PNG_EXPORT	(	49	,
		void	,
		png_set_quantize	,
		(png_structrp png_ptr, png_colorp palette, int num_palette, int maximum_colors, png_const_uint_16p histogram, int full_quantize)
	)

◆ PNG_FP_EXPORT() [4/14]

PNG_FP_EXPORT	(	50	,
		void	,
		png_set_gamma	,
		(png_structrp png_ptr, double screen_gamma, double override_file_gamma)
	)

◆ PNG_EXPORT() [41/197]

png_structrp png_fixed_point png_fixed_point override_file_gamma PNG_EXPORT	(	51	,
		void	,
		png_set_flush	,
		(png_structrp png_ptr, int nrows)
	)

◆ PNG_EXPORT() [42/197]

PNG_EXPORT	(	52	,
		void	,
		png_write_flush	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [43/197]

PNG_EXPORT	(	53	,
		void	,
		png_start_read_image	,
		(png_structrp png_ptr)
	)

◆ PNG_EXPORT() [44/197]

PNG_EXPORT	(	54	,
		void	,
		png_read_update_info	,
		(png_structrp png_ptr, png_inforp info_ptr)
	)

◆ PNG_EXPORT() [45/197]

PNG_EXPORT	(	55	,
		void	,
		png_read_rows	,
		(png_structrp png_ptr, png_bytepp row, png_bytepp display_row, png_uint_32 num_rows)
	)

◆ PNG_EXPORT() [46/197]

PNG_EXPORT	(	56	,
		void	,
		png_read_row	,
		(png_structrp png_ptr, png_bytep row, png_bytep display_row)
	)

◆ PNG_EXPORT() [47/197]

PNG_EXPORT	(	57	,
		void	,
		png_read_image	,
		(png_structrp png_ptr, png_bytepp image)
	)

◆ PNG_EXPORT() [48/197]

PNG_EXPORT	(	58	,
		void	,
		png_write_row	,
		(png_structrp png_ptr, png_const_bytep row)
	)

◆ PNG_EXPORT() [49/197]

PNG_EXPORT	(	59	,
		void	,
		png_write_rows	,
		(png_structrp png_ptr, png_bytepp row, png_uint_32 num_rows)
	)

◆ PNG_EXPORT() [50/197]

PNG_EXPORT	(	60	,
		void	,
		png_write_image	,
		(png_structrp png_ptr, png_bytepp image)
	)

◆ PNG_EXPORT() [51/197]

PNG_EXPORT	(	61	,
		void	,
		png_write_end	,
		(png_structrp png_ptr, png_inforp info_ptr)
	)

◆ PNG_EXPORT() [52/197]

PNG_EXPORT	(	62	,
		void	,
		png_read_end	,
		(png_structrp png_ptr, png_inforp info_ptr)
	)

◆ PNG_EXPORT() [53/197]

PNG_EXPORT	(	63	,
		void	,
		png_destroy_info_struct	,
		(png_const_structrp png_ptr, png_infopp info_ptr_ptr)
	)

◆ PNG_EXPORT() [54/197]

PNG_EXPORT	(	64	,
		void	,
		png_destroy_read_struct	,
		(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)
	)

◆ PNG_EXPORT() [55/197]

PNG_EXPORT	(	65	,
		void	,
		png_destroy_write_struct	,
		(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)
	)

◆ PNG_EXPORT() [56/197]

PNG_EXPORT	(	66	,
		void	,
		png_set_crc_action	,
		(png_structrp png_ptr, int crit_action, int ancil_action)
	)

◆ PNG_EXPORT() [57/197]

PNG_EXPORT	(	67	,
		void	,
		png_set_filter	,
		(png_structrp png_ptr, int method, int filters)
	)

◆ PNG_FP_EXPORT() [5/14]

PNG_FP_EXPORT	(	68	,
		void	,
		png_set_filter_heuristics	,
		(png_structrp png_ptr, int heuristic_method, int num_weights, png_const_doublep filter_weights, png_const_doublep filter_costs)
	)

◆ PNG_EXPORT() [58/197]

PNG_EXPORT	(	69	,
		void	,
		png_set_compression_level	,
		(png_structrp png_ptr, int level)
	)

◆ PNG_EXPORT() [59/197]

PNG_EXPORT	(	70	,
		void	,
		png_set_compression_mem_level	,
		(png_structrp png_ptr, int mem_level)
	)

◆ PNG_EXPORT() [60/197]

PNG_EXPORT	(	71	,
		void	,
		png_set_compression_strategy	,
		(png_structrp png_ptr, int strategy)
	)

◆ PNG_EXPORT() [61/197]

PNG_EXPORT	(	72	,
		void	,
		png_set_compression_window_bits	,
		(png_structrp png_ptr, int window_bits)
	)

◆ PNG_EXPORT() [62/197]

PNG_EXPORT	(	73	,
		void	,
		png_set_compression_method	,
		(png_structrp png_ptr, int method)
	)

◆ PNG_EXPORT() [63/197]

PNG_EXPORT	(	222	,
		void	,
		png_set_text_compression_level	,
		(png_structrp png_ptr, int level)
	)

◆ PNG_EXPORT() [64/197]

PNG_EXPORT	(	223	,
		void	,
		png_set_text_compression_mem_level	,
		(png_structrp png_ptr, int mem_level)
	)

◆ PNG_EXPORT() [65/197]

PNG_EXPORT	(	224	,
		void	,
		png_set_text_compression_strategy	,
		(png_structrp png_ptr, int strategy)
	)

◆ PNG_EXPORT() [66/197]

PNG_EXPORT	(	225	,
		void	,
		png_set_text_compression_window_bits	,
		(png_structrp png_ptr, int window_bits)
	)

◆ PNG_EXPORT() [67/197]

PNG_EXPORT	(	226	,
		void	,
		png_set_text_compression_method	,
		(png_structrp png_ptr, int method)
	)

◆ PNG_EXPORT() [68/197]

PNG_EXPORT	(	74	,
		void	,
		png_init_io	,
		(png_structrp png_ptr, png_FILE_p fp)
	)

◆ PNG_EXPORT() [69/197]

PNG_EXPORT	(	75	,
		void	,
		png_set_error_fn	,
		(png_structrp png_ptr, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn)
	)

◆ PNG_EXPORT() [70/197]

PNG_EXPORT	(	76	,
		png_voidp	,
		png_get_error_ptr	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [71/197]

PNG_EXPORT	(	77	,
		void	,
		png_set_write_fn	,
		(png_structrp png_ptr, png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)
	)

◆ PNG_EXPORT() [72/197]

PNG_EXPORT	(	78	,
		void	,
		png_set_read_fn	,
		(png_structrp png_ptr, png_voidp io_ptr, png_rw_ptr read_data_fn)
	)

◆ PNG_EXPORT() [73/197]

PNG_EXPORT	(	79	,
		png_voidp	,
		png_get_io_ptr	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [74/197]

PNG_EXPORT	(	80	,
		void	,
		png_set_read_status_fn	,
		(png_structrp png_ptr, png_read_status_ptr read_row_fn)
	)

◆ PNG_EXPORT() [75/197]

PNG_EXPORT	(	81	,
		void	,
		png_set_write_status_fn	,
		(png_structrp png_ptr, png_write_status_ptr write_row_fn)
	)

◆ PNG_EXPORT() [76/197]

PNG_EXPORT	(	82	,
		void	,
		png_set_mem_fn	,
		(png_structrp png_ptr, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)
	)

◆ PNG_EXPORT() [77/197]

PNG_EXPORT	(	83	,
		png_voidp	,
		png_get_mem_ptr	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [78/197]

PNG_EXPORT	(	84	,
		void	,
		png_set_read_user_transform_fn	,
		(png_structrp png_ptr, png_user_transform_ptr read_user_transform_fn)
	)

◆ PNG_EXPORT() [79/197]

PNG_EXPORT	(	85	,
		void	,
		png_set_write_user_transform_fn	,
		(png_structrp png_ptr, png_user_transform_ptr write_user_transform_fn)
	)

◆ PNG_EXPORT() [80/197]

PNG_EXPORT	(	86	,
		void	,
		png_set_user_transform_info	,
		(png_structrp png_ptr, png_voidp user_transform_ptr, int user_transform_depth, int user_transform_channels)
	)

◆ PNG_EXPORT() [81/197]

PNG_EXPORT	(	87	,
		png_voidp	,
		png_get_user_transform_ptr	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [82/197]

PNG_EXPORT	(	217	,
		png_uint_32	,
		png_get_current_row_number	,
		(png_const_structrp)
	)

◆ PNG_EXPORT() [83/197]

PNG_EXPORT	(	218	,
		png_byte	,
		png_get_current_pass_number	,
		(png_const_structrp)
	)

◆ PNG_EXPORT() [84/197]

PNG_EXPORT	(	88	,
		void	,
		png_set_read_user_chunk_fn	,
		(png_structrp png_ptr, png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn)
	)

◆ PNG_EXPORT() [85/197]

PNG_EXPORT	(	89	,
		png_voidp	,
		png_get_user_chunk_ptr	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [86/197]

PNG_EXPORT	(	90	,
		void	,
		png_set_progressive_read_fn	,
		(png_structrp png_ptr, png_voidp progressive_ptr, png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn)
	)

◆ PNG_EXPORT() [87/197]

PNG_EXPORT	(	91	,
		png_voidp	,
		png_get_progressive_ptr	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [88/197]

PNG_EXPORT	(	92	,
		void	,
		png_process_data	,
		(png_structrp png_ptr, png_inforp info_ptr, png_bytep buffer, size_t buffer_size)
	)

◆ PNG_EXPORT() [89/197]

PNG_EXPORT	(	219	,
		size_t	,
		png_process_data_pause	,
		(png_structrp, int save)
	)

◆ PNG_EXPORT() [90/197]

PNG_EXPORT	(	220	,
		png_uint_32	,
		png_process_data_skip	,
		(png_structrp)
	)

◆ PNG_EXPORT() [91/197]

PNG_EXPORT	(	93	,
		void	,
		png_progressive_combine_row	,
		(png_const_structrp png_ptr, png_bytep old_row, png_const_bytep new_row)
	)

◆ PNG_EXPORTA() [10/16]

PNG_EXPORTA	(	94	,
		png_voidp	,
		png_malloc	,
		(png_const_structrp png_ptr, png_alloc_size_t size)	,
		PNG_ALLOCATED
	)

◆ PNG_EXPORTA() [11/16]

PNG_EXPORTA	(	95	,
		png_voidp	,
		png_calloc	,
		(png_const_structrp png_ptr, png_alloc_size_t size)	,
		PNG_ALLOCATED
	)

◆ PNG_EXPORTA() [12/16]

PNG_EXPORTA	(	96	,
		png_voidp	,
		png_malloc_warn	,
		(png_const_structrp png_ptr, png_alloc_size_t size)	,
		PNG_ALLOCATED
	)

◆ PNG_EXPORT() [92/197]

PNG_EXPORT	(	97	,
		void	,
		png_free	,
		(png_const_structrp png_ptr, png_voidp ptr)
	)

◆ PNG_EXPORT() [93/197]

PNG_EXPORT	(	98	,
		void	,
		png_free_data	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 free_me, int num)
	)

◆ PNG_EXPORT() [94/197]

PNG_EXPORT	(	99	,
		void	,
		png_data_freer	,
		(png_const_structrp png_ptr, png_inforp info_ptr, int freer, png_uint_32 mask)
	)

◆ PNG_EXPORTA() [13/16]

PNG_EXPORTA	(	100	,
		png_voidp	,
		png_malloc_default	,
		(png_const_structrp png_ptr, png_alloc_size_t size)	,
		PNG_ALLOCATED	PNG_DEPRECATED
	)

◆ PNG_EXPORTA() [14/16]

PNG_EXPORTA	(	101	,
		void	,
		png_free_default	,
		(png_const_structrp png_ptr, png_voidp ptr)	,
		PNG_DEPRECATED
	)

◆ PNG_EXPORTA() [15/16]

PNG_EXPORTA	(	102	,
		void	,
		png_error	,
		(png_const_structrp png_ptr, png_const_charp error_message)	,
		PNG_NORETURN
	)

◆ PNG_EXPORTA() [16/16]

PNG_EXPORTA	(	103	,
		void	,
		png_chunk_error	,
		(png_const_structrp png_ptr, png_const_charp error_message)	,
		PNG_NORETURN
	)

◆ PNG_EXPORT() [95/197]

PNG_EXPORT	(	105	,
		void	,
		png_warning	,
		(png_const_structrp png_ptr, png_const_charp warning_message)
	)

◆ PNG_EXPORT() [96/197]

PNG_EXPORT	(	106	,
		void	,
		png_chunk_warning	,
		(png_const_structrp png_ptr, png_const_charp warning_message)
	)

◆ PNG_EXPORT() [97/197]

PNG_EXPORT	(	107	,
		void	,
		png_benign_error	,
		(png_const_structrp png_ptr, png_const_charp warning_message)
	)

◆ PNG_EXPORT() [98/197]

PNG_EXPORT	(	108	,
		void	,
		png_chunk_benign_error	,
		(png_const_structrp png_ptr, png_const_charp warning_message)
	)

◆ PNG_EXPORT() [99/197]

PNG_EXPORT	(	109	,
		void	,
		png_set_benign_errors	,
		(png_structrp png_ptr, int allowed)
	)

◆ PNG_EXPORT() [100/197]

PNG_EXPORT	(	110	,
		png_uint_32	,
		png_get_valid	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 flag)
	)

◆ PNG_EXPORT() [101/197]

PNG_EXPORT	(	111	,
		size_t	,
		png_get_rowbytes	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [102/197]

PNG_EXPORT	(	112	,
		png_bytepp	,
		png_get_rows	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [103/197]

PNG_EXPORT	(	113	,
		void	,
		png_set_rows	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_bytepp row_pointers)
	)

◆ PNG_EXPORT() [104/197]

PNG_EXPORT	(	114	,
		png_byte	,
		png_get_channels	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [105/197]

PNG_EXPORT	(	115	,
		png_uint_32	,
		png_get_image_width	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [106/197]

PNG_EXPORT	(	116	,
		png_uint_32	,
		png_get_image_height	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [107/197]

PNG_EXPORT	(	117	,
		png_byte	,
		png_get_bit_depth	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [108/197]

PNG_EXPORT	(	118	,
		png_byte	,
		png_get_color_type	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [109/197]

PNG_EXPORT	(	119	,
		png_byte	,
		png_get_filter_type	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [110/197]

PNG_EXPORT	(	120	,
		png_byte	,
		png_get_interlace_type	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [111/197]

PNG_EXPORT	(	121	,
		png_byte	,
		png_get_compression_type	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [112/197]

PNG_EXPORT	(	122	,
		png_uint_32	,
		png_get_pixels_per_meter	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [113/197]

PNG_EXPORT	(	123	,
		png_uint_32	,
		png_get_x_pixels_per_meter	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [114/197]

PNG_EXPORT	(	124	,
		png_uint_32	,
		png_get_y_pixels_per_meter	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_FP_EXPORT() [6/14]

PNG_FP_EXPORT	(	125	,
		float	,
		png_get_pixel_aspect_ratio	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [115/197]

png_const_structrp png_const_inforp info_ptr PNG_EXPORT	(	126	,
		png_int_32	,
		png_get_x_offset_pixels	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [116/197]

PNG_EXPORT	(	127	,
		png_int_32	,
		png_get_y_offset_pixels	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [117/197]

PNG_EXPORT	(	128	,
		png_int_32	,
		png_get_x_offset_microns	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [118/197]

PNG_EXPORT	(	129	,
		png_int_32	,
		png_get_y_offset_microns	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [119/197]

PNG_EXPORT	(	130	,
		png_const_bytep	,
		png_get_signature	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [120/197]

PNG_EXPORT	(	131	,
		png_uint_32	,
		png_get_bKGD	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_color_16p *background)
	)

◆ PNG_EXPORT() [121/197]

PNG_EXPORT	(	132	,
		void	,
		png_set_bKGD	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_const_color_16p background)
	)

◆ PNG_FP_EXPORT() [7/14]

PNG_FP_EXPORT	(	133	,
		png_uint_32	,
		png_get_cHRM	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, double white_x, double white_y, double red_x, double red_y, double green_x, double green_y, double blue_x, double blue_y)
	)

◆ PNG_FIXED_EXPORT() [1/2]

png_const_structrp png_const_inforp double double double double double double double double double* blue_Z PNG_FIXED_EXPORT	(	134	,
		png_uint_32	,
		png_get_cHRM_fixed	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, png_fixed_point int_blue_y)
	)

◆ PNG_FP_EXPORT() [8/14]

png_const_structrp png_const_inforp double double double double double double double double double* blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point* int_blue_Z PNG_FP_EXPORT	(	135	,
		void	,
		png_set_cHRM	,
		(png_const_structrp png_ptr, png_inforp info_ptr, double white_x, double white_y, double red_x, double red_y, double green_x, double green_y, double blue_x, double blue_y)
	)

◆ PNG_FIXED_EXPORT() [2/2]

png_const_structrp png_const_inforp double double double double double double double double double* blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point* int_blue_Z png_const_structrp png_inforp double double double double double double double double double blue_Z PNG_FIXED_EXPORT	(	136	,
		void	,
		png_set_cHRM_fixed	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, png_fixed_point int_blue_y)
	)

◆ PNG_EXPORT() [122/197]

png_const_structrp png_const_inforp double double double double double double double double double* blue_Z png_const_structrp png_const_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point* int_blue_Z png_const_structrp png_inforp double double double double double double double double double blue_Z png_const_structrp png_inforp png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point png_fixed_point int_blue_Z PNG_EXPORT	(	246	,
		png_uint_32	,
		png_get_eXIf	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_bytep *exif)
	)

◆ PNG_EXPORT() [123/197]

PNG_EXPORT	(	247	,
		void	,
		png_set_eXIf	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_bytep exif)
	)

◆ PNG_EXPORT() [124/197]

PNG_EXPORT	(	248	,
		png_uint_32	,
		png_get_eXIf_1	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 num_exif, png_bytep exif)
	)

◆ PNG_EXPORT() [125/197]

PNG_EXPORT	(	249	,
		void	,
		png_set_eXIf_1	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 num_exif, png_bytep exif)
	)

◆ PNG_FP_EXPORT() [9/14]

PNG_FP_EXPORT	(	137	,
		png_uint_32	,
		png_get_gAMA	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, double *file_gamma)
	)

◆ PNG_FP_EXPORT() [10/14]

png_const_structrp png_const_inforp png_fixed_point* int_file_gamma PNG_FP_EXPORT	(	139	,
		void	,
		png_set_gAMA	,
		(png_const_structrp png_ptr, png_inforp info_ptr, double file_gamma)
	)

◆ PNG_EXPORT() [126/197]

png_const_structrp png_const_inforp png_fixed_point* int_file_gamma png_const_structrp png_inforp png_fixed_point int_file_gamma PNG_EXPORT	(	141	,
		png_uint_32	,
		png_get_hIST	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_16p *hist)
	)

◆ PNG_EXPORT() [127/197]

PNG_EXPORT	(	142	,
		void	,
		png_set_hIST	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_const_uint_16p hist)
	)

◆ PNG_EXPORT() [128/197]

PNG_EXPORT	(	143	,
		png_uint_32	,
		png_get_IHDR	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, int interlace_method, int compression_method, int *filter_method)
	)

◆ PNG_EXPORT() [129/197]

PNG_EXPORT	(	144	,
		void	,
		png_set_IHDR	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, int interlace_method, int compression_method, int filter_method)
	)

◆ PNG_EXPORT() [130/197]

PNG_EXPORT	(	145	,
		png_uint_32	,
		png_get_oFFs	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, png_int_32 offset_x, png_int_32 offset_y, int *unit_type)
	)

◆ PNG_EXPORT() [131/197]

PNG_EXPORT	(	146	,
		void	,
		png_set_oFFs	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_int_32 offset_x, png_int_32 offset_y, int unit_type)
	)

◆ PNG_EXPORT() [132/197]

PNG_EXPORT	(	147	,
		png_uint_32	,
		png_get_pCAL	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, png_charp units, png_charpp *params)
	)

◆ PNG_EXPORT() [133/197]

PNG_EXPORT	(	148	,
		void	,
		png_set_pCAL	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_const_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, png_const_charp units, png_charpp params)
	)

◆ PNG_EXPORT() [134/197]

PNG_EXPORT	(	149	,
		png_uint_32	,
		png_get_pHYs	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 res_x, png_uint_32 res_y, int *unit_type)
	)

◆ PNG_EXPORT() [135/197]

PNG_EXPORT	(	150	,
		void	,
		png_set_pHYs	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type)
	)

◆ PNG_EXPORT() [136/197]

PNG_EXPORT	(	151	,
		png_uint_32	,
		png_get_PLTE	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_colorp palette, int num_palette)
	)

◆ PNG_EXPORT() [137/197]

PNG_EXPORT	(	152	,
		void	,
		png_set_PLTE	,
		(png_structrp png_ptr, png_inforp info_ptr, png_const_colorp palette, int num_palette)
	)

◆ PNG_EXPORT() [138/197]

PNG_EXPORT	(	153	,
		png_uint_32	,
		png_get_sBIT	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_color_8p *sig_bit)
	)

◆ PNG_EXPORT() [139/197]

PNG_EXPORT	(	154	,
		void	,
		png_set_sBIT	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_const_color_8p sig_bit)
	)

◆ PNG_EXPORT() [140/197]

PNG_EXPORT	(	155	,
		png_uint_32	,
		png_get_sRGB	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, int *file_srgb_intent)
	)

◆ PNG_EXPORT() [141/197]

PNG_EXPORT	(	156	,
		void	,
		png_set_sRGB	,
		(png_const_structrp png_ptr, png_inforp info_ptr, int srgb_intent)
	)

◆ PNG_EXPORT() [142/197]

PNG_EXPORT	(	157	,
		void	,
		png_set_sRGB_gAMA_and_cHRM	,
		(png_const_structrp png_ptr, png_inforp info_ptr, int srgb_intent)
	)

◆ PNG_EXPORT() [143/197]

PNG_EXPORT	(	158	,
		png_uint_32	,
		png_get_iCCP	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_charpp name, int compression_type, png_bytepp profile, png_uint_32 proflen)
	)

◆ PNG_EXPORT() [144/197]

PNG_EXPORT	(	159	,
		void	,
		png_set_iCCP	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_const_charp name, int compression_type, png_const_bytep profile, png_uint_32 proflen)
	)

◆ PNG_EXPORT() [145/197]

PNG_EXPORT	(	160	,
		int	,
		png_get_sPLT	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_sPLT_tpp entries)
	)

◆ PNG_EXPORT() [146/197]

PNG_EXPORT	(	161	,
		void	,
		png_set_sPLT	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_const_sPLT_tp entries, int nentries)
	)

◆ PNG_EXPORT() [147/197]

PNG_EXPORT	(	162	,
		int	,
		png_get_text	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_textp text_ptr, int num_text)
	)

◆ PNG_EXPORT() [148/197]

PNG_EXPORT	(	163	,
		void	,
		png_set_text	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_const_textp text_ptr, int num_text)
	)

◆ PNG_EXPORT() [149/197]

PNG_EXPORT	(	164	,
		png_uint_32	,
		png_get_tIME	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_timep *mod_time)
	)

◆ PNG_EXPORT() [150/197]

PNG_EXPORT	(	165	,
		void	,
		png_set_tIME	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_const_timep mod_time)
	)

◆ PNG_EXPORT() [151/197]

PNG_EXPORT	(	166	,
		png_uint_32	,
		png_get_tRNS	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_bytep trans_alpha, int num_trans, png_color_16p *trans_color)
	)

◆ PNG_EXPORT() [152/197]

PNG_EXPORT	(	167	,
		void	,
		png_set_tRNS	,
		(png_structrp png_ptr, png_inforp info_ptr, png_const_bytep trans_alpha, int num_trans, png_const_color_16p trans_color)
	)

◆ PNG_FP_EXPORT() [11/14]

PNG_FP_EXPORT	(	168	,
		png_uint_32	,
		png_get_sCAL	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, int unit, double width, double *height)
	)

◆ PNG_EXPORT() [153/197]

png_const_structrp png_const_inforp int png_fixed_point png_fixed_point* height PNG_EXPORT	(	169	,
		png_uint_32	,
		png_get_sCAL_s	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, int *unit, png_charpp swidth, png_charpp sheight)
	)

◆ PNG_FP_EXPORT() [12/14]

PNG_FP_EXPORT	(	170	,
		void	,
		png_set_sCAL	,
		(png_const_structrp png_ptr, png_inforp info_ptr, int unit, double width, double height)
	)

◆ PNG_EXPORT() [154/197]

png_const_structrp png_inforp int png_fixed_point png_fixed_point height PNG_EXPORT	(	171	,
		void	,
		png_set_sCAL_s	,
		(png_const_structrp png_ptr, png_inforp info_ptr, int unit, png_const_charp swidth, png_const_charp sheight)
	)

◆ PNG_EXPORT() [155/197]

PNG_EXPORT	(	172	,
		void	,
		png_set_keep_unknown_chunks	,
		(png_structrp png_ptr, int keep, png_const_bytep chunk_list, int num_chunks)
	)

◆ PNG_EXPORT() [156/197]

PNG_EXPORT	(	173	,
		int	,
		png_handle_as_unknown	,
		(png_const_structrp png_ptr, png_const_bytep chunk_name)
	)

◆ PNG_EXPORT() [157/197]

PNG_EXPORT	(	174	,
		void	,
		png_set_unknown_chunks	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns)
	)

◆ PNG_EXPORT() [158/197]

PNG_EXPORT	(	175	,
		void	,
		png_set_unknown_chunk_location	,
		(png_const_structrp png_ptr, png_inforp info_ptr, int chunk, int location)
	)

◆ PNG_EXPORT() [159/197]

PNG_EXPORT	(	176	,
		int	,
		png_get_unknown_chunks	,
		(png_const_structrp png_ptr, png_inforp info_ptr, png_unknown_chunkpp entries)
	)

◆ PNG_EXPORT() [160/197]

PNG_EXPORT	(	177	,
		void	,
		png_set_invalid	,
		(png_const_structrp png_ptr, png_inforp info_ptr, int mask)
	)

◆ PNG_EXPORT() [161/197]

PNG_EXPORT	(	178	,
		void	,
		png_read_png	,
		(png_structrp png_ptr, png_inforp info_ptr, int transforms, png_voidp params)
	)

◆ PNG_EXPORT() [162/197]

PNG_EXPORT	(	179	,
		void	,
		png_write_png	,
		(png_structrp png_ptr, png_inforp info_ptr, int transforms, png_voidp params)
	)

◆ PNG_EXPORT() [163/197]

PNG_EXPORT	(	180	,
		png_const_charp	,
		png_get_copyright	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [164/197]

PNG_EXPORT	(	181	,
		png_const_charp	,
		png_get_header_ver	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [165/197]

PNG_EXPORT	(	182	,
		png_const_charp	,
		png_get_header_version	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [166/197]

PNG_EXPORT	(	183	,
		png_const_charp	,
		png_get_libpng_ver	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [167/197]

PNG_EXPORT	(	184	,
		png_uint_32	,
		png_permit_mng_features	,
		(png_structrp png_ptr, png_uint_32 mng_features_permitted)
	)

◆ PNG_EXPORT() [168/197]

PNG_EXPORT	(	186	,
		void	,
		png_set_user_limits	,
		(png_structrp png_ptr, png_uint_32 user_width_max, png_uint_32 user_height_max)
	)

◆ PNG_EXPORT() [169/197]

PNG_EXPORT	(	187	,
		png_uint_32	,
		png_get_user_width_max	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [170/197]

PNG_EXPORT	(	188	,
		png_uint_32	,
		png_get_user_height_max	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [171/197]

PNG_EXPORT	(	189	,
		void	,
		png_set_chunk_cache_max	,
		(png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
	)

◆ PNG_EXPORT() [172/197]

PNG_EXPORT	(	190	,
		png_uint_32	,
		png_get_chunk_cache_max	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [173/197]

PNG_EXPORT	(	191	,
		void	,
		png_set_chunk_malloc_max	,
		(png_structrp png_ptr, png_alloc_size_t user_chunk_cache_max)
	)

◆ PNG_EXPORT() [174/197]

PNG_EXPORT	(	192	,
		png_alloc_size_t	,
		png_get_chunk_malloc_max	,
		(png_const_structrp png_ptr)
	)

◆ PNG_EXPORT() [175/197]

PNG_EXPORT	(	193	,
		png_uint_32	,
		png_get_pixels_per_inch	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [176/197]

PNG_EXPORT	(	194	,
		png_uint_32	,
		png_get_x_pixels_per_inch	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [177/197]

PNG_EXPORT	(	195	,
		png_uint_32	,
		png_get_y_pixels_per_inch	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_FP_EXPORT() [13/14]

PNG_FP_EXPORT	(	196	,
		float	,
		png_get_x_offset_inches	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_FP_EXPORT() [14/14]

png_const_structrp png_const_inforp info_ptr PNG_FP_EXPORT	(	197	,
		float	,
		png_get_y_offset_inches	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr)
	)

◆ PNG_EXPORT() [178/197]

png_const_structrp png_const_inforp info_ptr png_const_structrp png_const_inforp info_ptr PNG_EXPORT	(	198	,
		png_uint_32	,
		png_get_pHYs_dpi	,
		(png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 res_x, png_uint_32 res_y, int *unit_type)
	)

◆ PNG_EXPORT() [179/197]

PNG_EXPORT	(	199	,
		png_uint_32	,
		png_get_io_state	,
		(png_const_structrp png_ptr)
	)

◆ PNG_REMOVED()

PNG_REMOVED	(	200	,
		png_const_bytep	,
		png_get_io_chunk_name	,
		(png_structrp png_ptr)	,
		PNG_DEPRECATED
	)

◆ PNG_EXPORT() [180/197]

PNG_EXPORT	(	201	,
		png_uint_32	,
		png_get_uint_32	,
		(png_const_bytep buf)
	)

◆ PNG_EXPORT() [181/197]

PNG_EXPORT	(	202	,
		png_uint_16	,
		png_get_uint_16	,
		(png_const_bytep buf)
	)

◆ PNG_EXPORT() [182/197]

PNG_EXPORT	(	203	,
		png_int_32	,
		png_get_int_32	,
		(png_const_bytep buf)
	)

◆ PNG_EXPORT() [183/197]

PNG_EXPORT	(	204	,
		png_uint_32	,
		png_get_uint_31	,
		(png_const_structrp png_ptr, png_const_bytep buf)
	)

◆ PNG_EXPORT() [184/197]

PNG_EXPORT	(	205	,
		void	,
		png_save_uint_32	,
		(png_bytep buf, png_uint_32 i)
	)

◆ PNG_EXPORT() [185/197]

PNG_EXPORT	(	206	,
		void	,
		png_save_int_32	,
		(png_bytep buf, png_int_32 i)
	)

◆ PNG_EXPORT() [186/197]

PNG_EXPORT	(	207	,
		void	,
		png_save_uint_16	,
		(png_bytep buf, unsigned int i)
	)

◆ PNG_EXPORT() [187/197]

PNG_EXPORT	(	242	,
		void	,
		png_set_check_for_invalid_index	,
		(png_structrp png_ptr, int allowed)
	)

◆ PNG_EXPORT() [188/197]

PNG_EXPORT	(	243	,
		int	,
		png_get_palette_max	,
		(png_const_structp png_ptr, png_const_infop info_ptr)
	)

◆ PNG_EXPORT() [189/197]

PNG_EXPORT	(	234	,
		int	,
		png_image_begin_read_from_file	,
		(png_imagep image, const char *file_name)
	)

◆ PNG_EXPORT() [190/197]

PNG_EXPORT	(	235	,
		int	,
		png_image_begin_read_from_stdio	,
		(png_imagep image, FILE *file)
	)

◆ PNG_EXPORT() [191/197]

PNG_EXPORT	(	236	,
		int	,
		png_image_begin_read_from_memory	,
		(png_imagep image, png_const_voidp memory, size_t size)
	)

◆ PNG_EXPORT() [192/197]

PNG_EXPORT	(	237	,
		int	,
		png_image_finish_read	,
		(png_imagep image, png_const_colorp background, void buffer, png_int_32 row_stride, void colormap)
	)

◆ PNG_EXPORT() [193/197]

PNG_EXPORT	(	238	,
		void	,
		png_image_free	,
		(png_imagep image)
	)

◆ PNG_EXPORT() [194/197]

PNG_EXPORT	(	239	,
		int	,
		png_image_write_to_file	,
		(png_imagep image, const char file, int convert_to_8bit, const void buffer, png_int_32 row_stride, const void *colormap)
	)

◆ PNG_EXPORT() [195/197]

PNG_EXPORT	(	240	,
		int	,
		png_image_write_to_stdio	,
		(png_imagep image, FILE file, int convert_to_8_bit, const void buffer, png_int_32 row_stride, const void *colormap)
	)

◆ PNG_EXPORT() [196/197]

PNG_EXPORT	(	245	,
		int	,
		png_image_write_to_memory	,
		(png_imagep image, void memory, png_alloc_size_t PNG_RESTRICT memory_bytes, int convert_to_8_bit, const void buffer, png_int_32 row_stride, const void colormap)
	)