mirror of
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[master] Added deprectated-use reporting
ported from libpng-1.4.0
This commit is contained in:
Glenn Randers-Pehrson
443
png.h
443
png.h
@@ -1,6 +1,6 @@
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/* png.h - header file for PNG reference library
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*
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* libpng version 1.2.41beta15 - November 8, 2009
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* libpng version 1.2.41beta15 - November 9, 2009
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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@@ -10,7 +10,7 @@
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* Authors and maintainers:
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* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
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* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
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* libpng versions 0.97, January 1998, through 1.2.41beta15 - November 8, 2009: Glenn
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* libpng versions 0.97, January 1998, through 1.2.41beta15 - November 9, 2009: Glenn
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* See also "Contributing Authors", below.
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*
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* Note about libpng version numbers:
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@@ -277,7 +277,7 @@
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*
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* This code is released under the libpng license.
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*
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* libpng versions 1.2.6, August 15, 2004, through 1.2.41beta15, November 8, 2009, are
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* libpng versions 1.2.6, August 15, 2004, through 1.2.41beta15, November 9, 2009, are
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* Copyright (c) 2004, 2006-2009 Glenn Randers-Pehrson, and are
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* distributed according to the same disclaimer and license as libpng-1.2.5
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* with the following individual added to the list of Contributing Authors:
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@@ -389,7 +389,7 @@
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* Y2K compliance in libpng:
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* =========================
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*
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* November 8, 2009
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* November 9, 2009
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*
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* Since the PNG Development group is an ad-hoc body, we can't make
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* an official declaration.
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@@ -453,7 +453,7 @@
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/* Version information for png.h - this should match the version in png.c */
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#define PNG_LIBPNG_VER_STRING "1.2.41beta15"
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#define PNG_HEADER_VERSION_STRING \
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" libpng version 1.2.41beta15 - November 8, 2009\n"
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" libpng version 1.2.41beta15 - November 9, 2009\n"
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#define PNG_LIBPNG_VER_SONUM 0
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#define PNG_LIBPNG_VER_DLLNUM 13
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@@ -791,25 +791,25 @@ typedef png_unknown_chunk FAR * FAR * png_unknown_chunkpp;
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typedef struct png_info_struct
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{
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/* The following are necessary for every PNG file */
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png_uint_32 width; /* width of image in pixels (from IHDR) */
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png_uint_32 height; /* height of image in pixels (from IHDR) */
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png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */
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png_uint_32 rowbytes; /* bytes needed to hold an untransformed row */
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png_colorp palette; /* array of color values (valid & PNG_INFO_PLTE) */
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png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */
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png_uint_16 num_trans; /* number of transparent palette color (tRNS) */
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png_byte bit_depth; /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */
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png_byte color_type; /* see PNG_COLOR_TYPE_ below (from IHDR) */
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png_uint_32 width PNG_DEPSTRUCT; /* width of image in pixels (from IHDR) */
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png_uint_32 height PNG_DEPSTRUCT; /* height of image in pixels (from IHDR) */
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png_uint_32 valid PNG_DEPSTRUCT; /* valid chunk data (see PNG_INFO_ below) */
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png_uint_32 rowbytes PNG_DEPSTRUCT; /* bytes needed to hold an untransformed row */
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png_colorp palette PNG_DEPSTRUCT; /* array of color values (valid & PNG_INFO_PLTE) */
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png_uint_16 num_palette PNG_DEPSTRUCT; /* number of color entries in "palette" (PLTE) */
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png_uint_16 num_trans PNG_DEPSTRUCT; /* number of transparent palette color (tRNS) */
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png_byte bit_depth PNG_DEPSTRUCT; /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */
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png_byte color_type PNG_DEPSTRUCT; /* see PNG_COLOR_TYPE_ below (from IHDR) */
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/* The following three should have been named *_method not *_type */
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png_byte compression_type; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */
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png_byte filter_type; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */
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png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
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png_byte compression_type PNG_DEPSTRUCT; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */
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png_byte filter_type PNG_DEPSTRUCT; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */
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png_byte interlace_type PNG_DEPSTRUCT; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
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/* The following is informational only on read, and not used on writes. */
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png_byte channels; /* number of data channels per pixel (1, 2, 3, 4) */
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png_byte pixel_depth; /* number of bits per pixel */
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png_byte spare_byte; /* to align the data, and for future use */
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png_byte signature[8]; /* magic bytes read by libpng from start of file */
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png_byte channels PNG_DEPSTRUCT; /* number of data channels per pixel (1, 2, 3, 4) */
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png_byte pixel_depth PNG_DEPSTRUCT; /* number of bits per pixel */
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png_byte spare_byte PNG_DEPSTRUCT; /* to align the data, and for future use */
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png_byte signature[8] PNG_DEPSTRUCT; /* magic bytes read by libpng from start of file */
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/* The rest of the data is optional. If you are reading, check the
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* valid field to see if the information in these are valid. If you
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@@ -822,13 +822,13 @@ typedef struct png_info_struct
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* on which the image was created, normally in the range [1.0, 2.5].
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* Data is valid if (valid & PNG_INFO_gAMA) is non-zero.
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*/
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float gamma; /* gamma value of image, if (valid & PNG_INFO_gAMA) */
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float gamma PNG_DEPSTRUCT; /* gamma value of image, if (valid & PNG_INFO_gAMA) */
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#endif
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#ifdef PNG_sRGB_SUPPORTED
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/* GR-P, 0.96a */
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/* Data valid if (valid & PNG_INFO_sRGB) non-zero. */
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png_byte srgb_intent; /* sRGB rendering intent [0, 1, 2, or 3] */
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png_byte srgb_intent PNG_DEPSTRUCT; /* sRGB rendering intent [0, 1, 2, or 3] */
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#endif
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#ifdef PNG_TEXT_SUPPORTED
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@@ -840,16 +840,16 @@ typedef struct png_info_struct
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* unique, and the text string may be empty. Any number of text chunks may
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* be in an image.
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*/
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int num_text; /* number of comments read/to write */
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int max_text; /* current size of text array */
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png_textp text; /* array of comments read/to write */
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int num_text PNG_DEPSTRUCT; /* number of comments read/to write */
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int max_text PNG_DEPSTRUCT; /* current size of text array */
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png_textp text PNG_DEPSTRUCT; /* array of comments read/to write */
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#endif /* PNG_TEXT_SUPPORTED */
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#ifdef PNG_tIME_SUPPORTED
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/* The tIME chunk holds the last time the displayed image data was
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* modified. See the png_time struct for the contents of this struct.
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*/
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png_time mod_time;
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png_time mod_time PNG_DEPSTRUCT;
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#endif
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#ifdef PNG_sBIT_SUPPORTED
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@@ -859,7 +859,7 @@ typedef struct png_info_struct
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* the low-order bits is not specified. Data is valid if
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* (valid & PNG_INFO_sBIT) is non-zero.
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*/
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png_color_8 sig_bit; /* significant bits in color channels */
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png_color_8 sig_bit PNG_DEPSTRUCT; /* significant bits in color channels */
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#endif
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#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_EXPAND_SUPPORTED) || \
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@@ -873,8 +873,8 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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* single color specified that should be treated as fully transparent.
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* Data is valid if (valid & PNG_INFO_tRNS) is non-zero.
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*/
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png_bytep trans; /* transparent values for paletted image */
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png_color_16 trans_values; /* transparent color for non-palette image */
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png_bytep trans PNG_DEPSTRUCT; /* transparent values for paletted image */
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png_color_16 trans_values PNG_DEPSTRUCT; /* transparent color for non-palette image */
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#endif
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#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
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@@ -884,7 +884,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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* in "background" are normally in the same color space/depth as the
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* pixel data. Data is valid if (valid & PNG_INFO_bKGD) is non-zero.
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*/
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png_color_16 background;
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png_color_16 background PNG_DEPSTRUCT;
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#endif
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#ifdef PNG_oFFs_SUPPORTED
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@@ -893,9 +893,9 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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* application-specific co-ordinate space. See the PNG_OFFSET_ defines
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* below for the unit types. Valid if (valid & PNG_INFO_oFFs) non-zero.
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*/
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png_int_32 x_offset; /* x offset on page */
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png_int_32 y_offset; /* y offset on page */
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png_byte offset_unit_type; /* offset units type */
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png_int_32 x_offset PNG_DEPSTRUCT; /* x offset on page */
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png_int_32 y_offset PNG_DEPSTRUCT; /* y offset on page */
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png_byte offset_unit_type PNG_DEPSTRUCT; /* offset units type */
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#endif
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#ifdef PNG_pHYs_SUPPORTED
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@@ -903,9 +903,9 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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* display or printing in "phys_unit_type" units (see PNG_RESOLUTION_
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* defines below). Data is valid if (valid & PNG_INFO_pHYs) is non-zero.
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*/
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png_uint_32 x_pixels_per_unit; /* horizontal pixel density */
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png_uint_32 y_pixels_per_unit; /* vertical pixel density */
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png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */
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png_uint_32 x_pixels_per_unit PNG_DEPSTRUCT; /* horizontal pixel density */
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png_uint_32 y_pixels_per_unit PNG_DEPSTRUCT; /* vertical pixel density */
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png_byte phys_unit_type PNG_DEPSTRUCT; /* resolution type (see PNG_RESOLUTION_ below) */
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#endif
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#ifdef PNG_hIST_SUPPORTED
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@@ -915,7 +915,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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* values in the range [0,65535]. Data valid if (valid & PNG_INFO_hIST)
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* is non-zero.
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*/
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png_uint_16p hist;
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png_uint_16p hist PNG_DEPSTRUCT;
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#endif
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#ifdef PNG_cHRM_SUPPORTED
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@@ -926,14 +926,14 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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* [0.0, 0.8]. Data valid if (valid & PNG_INFO_cHRM) non-zero.
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*/
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#ifdef PNG_FLOATING_POINT_SUPPORTED
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float x_white;
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float y_white;
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float x_red;
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float y_red;
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float x_green;
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float y_green;
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float x_blue;
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float y_blue;
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float x_white PNG_DEPSTRUCT;
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float y_white PNG_DEPSTRUCT;
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float x_red PNG_DEPSTRUCT;
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float y_red PNG_DEPSTRUCT;
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float x_green PNG_DEPSTRUCT;
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float y_green PNG_DEPSTRUCT;
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float x_blue PNG_DEPSTRUCT;
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float y_blue PNG_DEPSTRUCT;
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#endif
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#endif
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@@ -949,40 +949,40 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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* implemented, and for a description of the ASCII parameter strings.
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* Data values are valid if (valid & PNG_INFO_pCAL) non-zero.
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*/
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png_charp pcal_purpose; /* pCAL chunk description string */
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png_int_32 pcal_X0; /* minimum value */
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png_int_32 pcal_X1; /* maximum value */
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png_charp pcal_units; /* Latin-1 string giving physical units */
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png_charpp pcal_params; /* ASCII strings containing parameter values */
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png_byte pcal_type; /* equation type (see PNG_EQUATION_ below) */
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png_byte pcal_nparams; /* number of parameters given in pcal_params */
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png_charp pcal_purpose PNG_DEPSTRUCT; /* pCAL chunk description string */
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png_int_32 pcal_X0 PNG_DEPSTRUCT; /* minimum value */
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png_int_32 pcal_X1 PNG_DEPSTRUCT; /* maximum value */
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png_charp pcal_units PNG_DEPSTRUCT; /* Latin-1 string giving physical units */
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png_charpp pcal_params PNG_DEPSTRUCT; /* ASCII strings containing parameter values */
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png_byte pcal_type PNG_DEPSTRUCT; /* equation type (see PNG_EQUATION_ below) */
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png_byte pcal_nparams PNG_DEPSTRUCT; /* number of parameters given in pcal_params */
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#endif
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/* New members added in libpng-1.0.6 */
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#ifdef PNG_FREE_ME_SUPPORTED
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png_uint_32 free_me; /* flags items libpng is responsible for freeing */
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png_uint_32 free_me PNG_DEPSTRUCT; /* flags items libpng is responsible for freeing */
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#endif
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#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \
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defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
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/* Storage for unknown chunks that the library doesn't recognize. */
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png_unknown_chunkp unknown_chunks;
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png_size_t unknown_chunks_num;
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png_unknown_chunkp unknown_chunks PNG_DEPSTRUCT;
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png_size_t unknown_chunks_num PNG_DEPSTRUCT;
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#endif
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#ifdef PNG_iCCP_SUPPORTED
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/* iCCP chunk data. */
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png_charp iccp_name; /* profile name */
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png_charp iccp_profile; /* International Color Consortium profile data */
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png_charp iccp_name PNG_DEPSTRUCT; /* profile name */
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png_charp iccp_profile PNG_DEPSTRUCT; /* International Color Consortium profile data */
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/* Note to maintainer: should be png_bytep */
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png_uint_32 iccp_proflen; /* ICC profile data length */
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png_byte iccp_compression; /* Always zero */
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png_uint_32 iccp_proflen PNG_DEPSTRUCT; /* ICC profile data length */
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png_byte iccp_compression PNG_DEPSTRUCT; /* Always zero */
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#endif
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#ifdef PNG_sPLT_SUPPORTED
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/* Data on sPLT chunks (there may be more than one). */
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png_sPLT_tp splt_palettes;
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png_uint_32 splt_palettes_num;
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png_sPLT_tp splt_palettes PNG_DEPSTRUCT;
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png_uint_32 splt_palettes_num PNG_DEPSTRUCT;
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#endif
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#ifdef PNG_sCAL_SUPPORTED
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@@ -993,36 +993,36 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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* in the image. This external representation is converted to double
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* here. Data values are valid if (valid & PNG_INFO_sCAL) is non-zero.
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*/
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png_byte scal_unit; /* unit of physical scale */
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png_byte scal_unit PNG_DEPSTRUCT; /* unit of physical scale */
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#ifdef PNG_FLOATING_POINT_SUPPORTED
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double scal_pixel_width; /* width of one pixel */
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double scal_pixel_height; /* height of one pixel */
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double scal_pixel_width PNG_DEPSTRUCT; /* width of one pixel */
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double scal_pixel_height PNG_DEPSTRUCT; /* height of one pixel */
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#endif
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#ifdef PNG_FIXED_POINT_SUPPORTED
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png_charp scal_s_width; /* string containing height */
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png_charp scal_s_height; /* string containing width */
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png_charp scal_s_width PNG_DEPSTRUCT; /* string containing height */
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png_charp scal_s_height PNG_DEPSTRUCT; /* string containing width */
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#endif
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#endif
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#ifdef PNG_INFO_IMAGE_SUPPORTED
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/* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS) non-zero */
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/* Data valid if (valid & PNG_INFO_IDAT) non-zero */
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png_bytepp row_pointers; /* the image bits */
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png_bytepp row_pointers PNG_DEPSTRUCT; /* the image bits */
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#endif
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#if defined(PNG_FIXED_POINT_SUPPORTED) && defined(PNG_gAMA_SUPPORTED)
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png_fixed_point int_gamma; /* gamma of image, if (valid & PNG_INFO_gAMA) */
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png_fixed_point int_gamma PNG_DEPSTRUCT; /* gamma of image, if (valid & PNG_INFO_gAMA) */
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#endif
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#if defined(PNG_cHRM_SUPPORTED) && defined(PNG_FIXED_POINT_SUPPORTED)
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png_fixed_point int_x_white;
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png_fixed_point int_y_white;
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png_fixed_point int_x_red;
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png_fixed_point int_y_red;
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png_fixed_point int_x_green;
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png_fixed_point int_y_green;
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png_fixed_point int_x_blue;
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png_fixed_point int_y_blue;
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png_fixed_point int_x_white PNG_DEPSTRUCT;
|
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png_fixed_point int_y_white PNG_DEPSTRUCT;
|
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png_fixed_point int_x_red PNG_DEPSTRUCT;
|
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png_fixed_point int_y_red PNG_DEPSTRUCT;
|
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png_fixed_point int_x_green PNG_DEPSTRUCT;
|
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png_fixed_point int_y_green PNG_DEPSTRUCT;
|
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png_fixed_point int_x_blue PNG_DEPSTRUCT;
|
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png_fixed_point int_y_blue PNG_DEPSTRUCT;
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#endif
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} png_info;
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@@ -1222,219 +1222,219 @@ struct png_struct_def
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#ifdef PNG_SETJMP_SUPPORTED
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jmp_buf jmpbuf; /* used in png_error */
|
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#endif
|
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png_error_ptr error_fn; /* function for printing errors and aborting */
|
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png_error_ptr warning_fn; /* function for printing warnings */
|
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png_voidp error_ptr; /* user supplied struct for error functions */
|
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png_rw_ptr write_data_fn; /* function for writing output data */
|
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png_rw_ptr read_data_fn; /* function for reading input data */
|
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png_voidp io_ptr; /* ptr to application struct for I/O functions */
|
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png_error_ptr error_fn PNG_DEPSTRUCT; /* function for printing errors and aborting */
|
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png_error_ptr warning_fn PNG_DEPSTRUCT; /* function for printing warnings */
|
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png_voidp error_ptr PNG_DEPSTRUCT; /* user supplied struct for error functions */
|
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png_rw_ptr write_data_fn PNG_DEPSTRUCT; /* function for writing output data */
|
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png_rw_ptr read_data_fn PNG_DEPSTRUCT; /* function for reading input data */
|
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png_voidp io_ptr PNG_DEPSTRUCT; /* ptr to application struct for I/O functions */
|
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#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
|
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png_user_transform_ptr read_user_transform_fn; /* user read transform */
|
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png_user_transform_ptr read_user_transform_fn PNG_DEPSTRUCT; /* user read transform */
|
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#endif
|
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#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
|
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png_user_transform_ptr write_user_transform_fn; /* user write transform */
|
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png_user_transform_ptr write_user_transform_fn PNG_DEPSTRUCT; /* user write transform */
|
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#endif
|
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|
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/* These were added in libpng-1.0.2 */
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#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
|
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#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
|
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defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
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png_voidp user_transform_ptr; /* user supplied struct for user transform */
|
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png_byte user_transform_depth; /* bit depth of user transformed pixels */
|
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png_byte user_transform_channels; /* channels in user transformed pixels */
|
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png_voidp user_transform_ptr PNG_DEPSTRUCT; /* user supplied struct for user transform */
|
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png_byte user_transform_depth PNG_DEPSTRUCT; /* bit depth of user transformed pixels */
|
||||
png_byte user_transform_channels PNG_DEPSTRUCT; /* channels in user transformed pixels */
|
||||
#endif
|
||||
#endif
|
||||
|
||||
png_uint_32 mode; /* tells us where we are in the PNG file */
|
||||
png_uint_32 flags; /* flags indicating various things to libpng */
|
||||
png_uint_32 transformations; /* which transformations to perform */
|
||||
png_uint_32 mode PNG_DEPSTRUCT; /* tells us where we are in the PNG file */
|
||||
png_uint_32 flags PNG_DEPSTRUCT; /* flags indicating various things to libpng */
|
||||
png_uint_32 transformations PNG_DEPSTRUCT; /* which transformations to perform */
|
||||
|
||||
z_stream zstream; /* pointer to decompression structure (below) */
|
||||
png_bytep zbuf; /* buffer for zlib */
|
||||
png_size_t zbuf_size; /* size of zbuf */
|
||||
int zlib_level; /* holds zlib compression level */
|
||||
int zlib_method; /* holds zlib compression method */
|
||||
int zlib_window_bits; /* holds zlib compression window bits */
|
||||
int zlib_mem_level; /* holds zlib compression memory level */
|
||||
int zlib_strategy; /* holds zlib compression strategy */
|
||||
z_stream zstream PNG_DEPSTRUCT; /* pointer to decompression structure (below) */
|
||||
png_bytep zbuf PNG_DEPSTRUCT; /* buffer for zlib */
|
||||
png_size_t zbuf_size PNG_DEPSTRUCT; /* size of zbuf */
|
||||
int zlib_level PNG_DEPSTRUCT; /* holds zlib compression level */
|
||||
int zlib_method PNG_DEPSTRUCT; /* holds zlib compression method */
|
||||
int zlib_window_bits PNG_DEPSTRUCT; /* holds zlib compression window bits */
|
||||
int zlib_mem_level PNG_DEPSTRUCT; /* holds zlib compression memory level */
|
||||
int zlib_strategy PNG_DEPSTRUCT; /* holds zlib compression strategy */
|
||||
|
||||
png_uint_32 width; /* width of image in pixels */
|
||||
png_uint_32 height; /* height of image in pixels */
|
||||
png_uint_32 num_rows; /* number of rows in current pass */
|
||||
png_uint_32 usr_width; /* width of row at start of write */
|
||||
png_uint_32 rowbytes; /* size of row in bytes */
|
||||
png_uint_32 irowbytes; /* size of current interlaced row in bytes */
|
||||
png_uint_32 iwidth; /* width of current interlaced row in pixels */
|
||||
png_uint_32 row_number; /* current row in interlace pass */
|
||||
png_bytep prev_row; /* buffer to save previous (unfiltered) row */
|
||||
png_bytep row_buf; /* buffer to save current (unfiltered) row */
|
||||
png_uint_32 width PNG_DEPSTRUCT; /* width of image in pixels */
|
||||
png_uint_32 height PNG_DEPSTRUCT; /* height of image in pixels */
|
||||
png_uint_32 num_rows PNG_DEPSTRUCT; /* number of rows in current pass */
|
||||
png_uint_32 usr_width PNG_DEPSTRUCT; /* width of row at start of write */
|
||||
png_uint_32 rowbytes PNG_DEPSTRUCT; /* size of row in bytes */
|
||||
png_uint_32 irowbytes PNG_DEPSTRUCT; /* size of current interlaced row in bytes */
|
||||
png_uint_32 iwidth PNG_DEPSTRUCT; /* width of current interlaced row in pixels */
|
||||
png_uint_32 row_number PNG_DEPSTRUCT; /* current row in interlace pass */
|
||||
png_bytep prev_row PNG_DEPSTRUCT; /* buffer to save previous (unfiltered) row */
|
||||
png_bytep row_buf PNG_DEPSTRUCT; /* buffer to save current (unfiltered) row */
|
||||
#ifndef PNG_NO_WRITE_FILTER
|
||||
png_bytep sub_row; /* buffer to save "sub" row when filtering */
|
||||
png_bytep up_row; /* buffer to save "up" row when filtering */
|
||||
png_bytep avg_row; /* buffer to save "avg" row when filtering */
|
||||
png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */
|
||||
png_bytep sub_row PNG_DEPSTRUCT; /* buffer to save "sub" row when filtering */
|
||||
png_bytep up_row PNG_DEPSTRUCT; /* buffer to save "up" row when filtering */
|
||||
png_bytep avg_row PNG_DEPSTRUCT; /* buffer to save "avg" row when filtering */
|
||||
png_bytep paeth_row PNG_DEPSTRUCT; /* buffer to save "Paeth" row when filtering */
|
||||
#endif
|
||||
png_row_info row_info; /* used for transformation routines */
|
||||
png_row_info row_info PNG_DEPSTRUCT; /* used for transformation routines */
|
||||
|
||||
png_uint_32 idat_size; /* current IDAT size for read */
|
||||
png_uint_32 crc; /* current chunk CRC value */
|
||||
png_colorp palette; /* palette from the input file */
|
||||
png_uint_16 num_palette; /* number of color entries in palette */
|
||||
png_uint_16 num_trans; /* number of transparency values */
|
||||
png_byte chunk_name[5]; /* null-terminated name of current chunk */
|
||||
png_byte compression; /* file compression type (always 0) */
|
||||
png_byte filter; /* file filter type (always 0) */
|
||||
png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
|
||||
png_byte pass; /* current interlace pass (0 - 6) */
|
||||
png_byte do_filter; /* row filter flags (see PNG_FILTER_ below ) */
|
||||
png_byte color_type; /* color type of file */
|
||||
png_byte bit_depth; /* bit depth of file */
|
||||
png_byte usr_bit_depth; /* bit depth of users row */
|
||||
png_byte pixel_depth; /* number of bits per pixel */
|
||||
png_byte channels; /* number of channels in file */
|
||||
png_byte usr_channels; /* channels at start of write */
|
||||
png_byte sig_bytes; /* magic bytes read/written from start of file */
|
||||
png_uint_32 idat_size PNG_DEPSTRUCT; /* current IDAT size for read */
|
||||
png_uint_32 crc PNG_DEPSTRUCT; /* current chunk CRC value */
|
||||
png_colorp palette PNG_DEPSTRUCT; /* palette from the input file */
|
||||
png_uint_16 num_palette PNG_DEPSTRUCT; /* number of color entries in palette */
|
||||
png_uint_16 num_trans PNG_DEPSTRUCT; /* number of transparency values */
|
||||
png_byte chunk_name[5] PNG_DEPSTRUCT; /* null-terminated name of current chunk */
|
||||
png_byte compression PNG_DEPSTRUCT; /* file compression type (always 0) */
|
||||
png_byte filter PNG_DEPSTRUCT; /* file filter type (always 0) */
|
||||
png_byte interlaced PNG_DEPSTRUCT; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
|
||||
png_byte pass PNG_DEPSTRUCT; /* current interlace pass (0 - 6) */
|
||||
png_byte do_filter PNG_DEPSTRUCT; /* row filter flags (see PNG_FILTER_ below ) */
|
||||
png_byte color_type PNG_DEPSTRUCT; /* color type of file */
|
||||
png_byte bit_depth PNG_DEPSTRUCT; /* bit depth of file */
|
||||
png_byte usr_bit_depth PNG_DEPSTRUCT; /* bit depth of users row */
|
||||
png_byte pixel_depth PNG_DEPSTRUCT; /* number of bits per pixel */
|
||||
png_byte channels PNG_DEPSTRUCT; /* number of channels in file */
|
||||
png_byte usr_channels PNG_DEPSTRUCT; /* channels at start of write */
|
||||
png_byte sig_bytes PNG_DEPSTRUCT; /* magic bytes read/written from start of file */
|
||||
|
||||
#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
|
||||
#ifdef PNG_LEGACY_SUPPORTED
|
||||
png_byte filler; /* filler byte for pixel expansion */
|
||||
png_byte filler PNG_DEPSTRUCT; /* filler byte for pixel expansion */
|
||||
#else
|
||||
png_uint_16 filler; /* filler bytes for pixel expansion */
|
||||
png_uint_16 filler PNG_DEPSTRUCT; /* filler bytes for pixel expansion */
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef PNG_bKGD_SUPPORTED
|
||||
png_byte background_gamma_type;
|
||||
png_byte background_gamma_type PNG_DEPSTRUCT;
|
||||
# ifdef PNG_FLOATING_POINT_SUPPORTED
|
||||
float background_gamma;
|
||||
float background_gamma PNG_DEPSTRUCT;
|
||||
# endif
|
||||
png_color_16 background; /* background color in screen gamma space */
|
||||
png_color_16 background PNG_DEPSTRUCT; /* background color in screen gamma space */
|
||||
#ifdef PNG_READ_GAMMA_SUPPORTED
|
||||
png_color_16 background_1; /* background normalized to gamma 1.0 */
|
||||
png_color_16 background_1 PNG_DEPSTRUCT; /* background normalized to gamma 1.0 */
|
||||
#endif
|
||||
#endif /* PNG_bKGD_SUPPORTED */
|
||||
|
||||
#ifdef PNG_WRITE_FLUSH_SUPPORTED
|
||||
png_flush_ptr output_flush_fn; /* Function for flushing output */
|
||||
png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */
|
||||
png_uint_32 flush_rows; /* number of rows written since last flush */
|
||||
png_flush_ptr output_flush_fn PNG_DEPSTRUCT; /* Function for flushing output */
|
||||
png_uint_32 flush_dist PNG_DEPSTRUCT; /* how many rows apart to flush, 0 - no flush */
|
||||
png_uint_32 flush_rows PNG_DEPSTRUCT; /* number of rows written since last flush */
|
||||
#endif
|
||||
|
||||
#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
|
||||
int gamma_shift; /* number of "insignificant" bits 16-bit gamma */
|
||||
int gamma_shift PNG_DEPSTRUCT; /* number of "insignificant" bits 16-bit gamma */
|
||||
#ifdef PNG_FLOATING_POINT_SUPPORTED
|
||||
float gamma; /* file gamma value */
|
||||
float screen_gamma; /* screen gamma value (display_exponent) */
|
||||
float gamma PNG_DEPSTRUCT; /* file gamma value */
|
||||
float screen_gamma PNG_DEPSTRUCT; /* screen gamma value (display_exponent) */
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
|
||||
png_bytep gamma_table; /* gamma table for 8-bit depth files */
|
||||
png_bytep gamma_from_1; /* converts from 1.0 to screen */
|
||||
png_bytep gamma_to_1; /* converts from file to 1.0 */
|
||||
png_uint_16pp gamma_16_table; /* gamma table for 16-bit depth files */
|
||||
png_uint_16pp gamma_16_from_1; /* converts from 1.0 to screen */
|
||||
png_uint_16pp gamma_16_to_1; /* converts from file to 1.0 */
|
||||
png_bytep gamma_table PNG_DEPSTRUCT; /* gamma table for 8-bit depth files */
|
||||
png_bytep gamma_from_1 PNG_DEPSTRUCT; /* converts from 1.0 to screen */
|
||||
png_bytep gamma_to_1 PNG_DEPSTRUCT; /* converts from file to 1.0 */
|
||||
png_uint_16pp gamma_16_table PNG_DEPSTRUCT; /* gamma table for 16-bit depth files */
|
||||
png_uint_16pp gamma_16_from_1 PNG_DEPSTRUCT; /* converts from 1.0 to screen */
|
||||
png_uint_16pp gamma_16_to_1 PNG_DEPSTRUCT; /* converts from file to 1.0 */
|
||||
#endif
|
||||
|
||||
#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED)
|
||||
png_color_8 sig_bit; /* significant bits in each available channel */
|
||||
png_color_8 sig_bit PNG_DEPSTRUCT; /* significant bits in each available channel */
|
||||
#endif
|
||||
|
||||
#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
|
||||
png_color_8 shift; /* shift for significant bit tranformation */
|
||||
png_color_8 shift PNG_DEPSTRUCT; /* shift for significant bit tranformation */
|
||||
#endif
|
||||
|
||||
#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \
|
||||
|| defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
|
||||
png_bytep trans; /* transparency values for paletted files */
|
||||
png_color_16 trans_values; /* transparency values for non-paletted files */
|
||||
png_bytep trans PNG_DEPSTRUCT; /* transparency values for paletted files */
|
||||
png_color_16 trans_values PNG_DEPSTRUCT; /* transparency values for non-paletted files */
|
||||
#endif
|
||||
|
||||
png_read_status_ptr read_row_fn; /* called after each row is decoded */
|
||||
png_write_status_ptr write_row_fn; /* called after each row is encoded */
|
||||
png_read_status_ptr read_row_fn PNG_DEPSTRUCT; /* called after each row is decoded */
|
||||
png_write_status_ptr write_row_fn PNG_DEPSTRUCT; /* called after each row is encoded */
|
||||
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
|
||||
png_progressive_info_ptr info_fn; /* called after header data fully read */
|
||||
png_progressive_row_ptr row_fn; /* called after each prog. row is decoded */
|
||||
png_progressive_end_ptr end_fn; /* called after image is complete */
|
||||
png_bytep save_buffer_ptr; /* current location in save_buffer */
|
||||
png_bytep save_buffer; /* buffer for previously read data */
|
||||
png_bytep current_buffer_ptr; /* current location in current_buffer */
|
||||
png_bytep current_buffer; /* buffer for recently used data */
|
||||
png_uint_32 push_length; /* size of current input chunk */
|
||||
png_uint_32 skip_length; /* bytes to skip in input data */
|
||||
png_size_t save_buffer_size; /* amount of data now in save_buffer */
|
||||
png_size_t save_buffer_max; /* total size of save_buffer */
|
||||
png_size_t buffer_size; /* total amount of available input data */
|
||||
png_size_t current_buffer_size; /* amount of data now in current_buffer */
|
||||
int process_mode; /* what push library is currently doing */
|
||||
int cur_palette; /* current push library palette index */
|
||||
png_progressive_info_ptr info_fn PNG_DEPSTRUCT; /* called after header data fully read */
|
||||
png_progressive_row_ptr row_fn PNG_DEPSTRUCT; /* called after each prog. row is decoded */
|
||||
png_progressive_end_ptr end_fn PNG_DEPSTRUCT; /* called after image is complete */
|
||||
png_bytep save_buffer_ptr PNG_DEPSTRUCT; /* current location in save_buffer */
|
||||
png_bytep save_buffer PNG_DEPSTRUCT; /* buffer for previously read data */
|
||||
png_bytep current_buffer_ptr PNG_DEPSTRUCT; /* current location in current_buffer */
|
||||
png_bytep current_buffer PNG_DEPSTRUCT; /* buffer for recently used data */
|
||||
png_uint_32 push_length PNG_DEPSTRUCT; /* size of current input chunk */
|
||||
png_uint_32 skip_length PNG_DEPSTRUCT; /* bytes to skip in input data */
|
||||
png_size_t save_buffer_size PNG_DEPSTRUCT; /* amount of data now in save_buffer */
|
||||
png_size_t save_buffer_max PNG_DEPSTRUCT; /* total size of save_buffer */
|
||||
png_size_t buffer_size PNG_DEPSTRUCT; /* total amount of available input data */
|
||||
png_size_t current_buffer_size PNG_DEPSTRUCT; /* amount of data now in current_buffer */
|
||||
int process_mode PNG_DEPSTRUCT; /* what push library is currently doing */
|
||||
int cur_palette PNG_DEPSTRUCT; /* current push library palette index */
|
||||
|
||||
# ifdef PNG_TEXT_SUPPORTED
|
||||
png_size_t current_text_size; /* current size of text input data */
|
||||
png_size_t current_text_left; /* how much text left to read in input */
|
||||
png_charp current_text; /* current text chunk buffer */
|
||||
png_charp current_text_ptr; /* current location in current_text */
|
||||
png_size_t current_text_size PNG_DEPSTRUCT; /* current size of text input data */
|
||||
png_size_t current_text_left PNG_DEPSTRUCT; /* how much text left to read in input */
|
||||
png_charp current_text PNG_DEPSTRUCT; /* current text chunk buffer */
|
||||
png_charp current_text_ptr PNG_DEPSTRUCT; /* current location in current_text */
|
||||
# endif /* PNG_TEXT_SUPPORTED */
|
||||
#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
|
||||
|
||||
#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__)
|
||||
/* for the Borland special 64K segment handler */
|
||||
png_bytepp offset_table_ptr;
|
||||
png_bytep offset_table;
|
||||
png_uint_16 offset_table_number;
|
||||
png_uint_16 offset_table_count;
|
||||
png_uint_16 offset_table_count_free;
|
||||
png_bytepp offset_table_ptr PNG_DEPSTRUCT;
|
||||
png_bytep offset_table PNG_DEPSTRUCT;
|
||||
png_uint_16 offset_table_number PNG_DEPSTRUCT;
|
||||
png_uint_16 offset_table_count PNG_DEPSTRUCT;
|
||||
png_uint_16 offset_table_count_free PNG_DEPSTRUCT;
|
||||
#endif
|
||||
|
||||
#ifdef PNG_READ_DITHER_SUPPORTED
|
||||
png_bytep palette_lookup; /* lookup table for dithering */
|
||||
png_bytep dither_index; /* index translation for palette files */
|
||||
png_bytep palette_lookup PNG_DEPSTRUCT; /* lookup table for dithering */
|
||||
png_bytep dither_index PNG_DEPSTRUCT; /* index translation for palette files */
|
||||
#endif
|
||||
|
||||
#if defined(PNG_READ_DITHER_SUPPORTED) || defined(PNG_hIST_SUPPORTED)
|
||||
png_uint_16p hist; /* histogram */
|
||||
png_uint_16p hist PNG_DEPSTRUCT; /* histogram */
|
||||
#endif
|
||||
|
||||
#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
|
||||
png_byte heuristic_method; /* heuristic for row filter selection */
|
||||
png_byte num_prev_filters; /* number of weights for previous rows */
|
||||
png_bytep prev_filters; /* filter type(s) of previous row(s) */
|
||||
png_uint_16p filter_weights; /* weight(s) for previous line(s) */
|
||||
png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */
|
||||
png_uint_16p filter_costs; /* relative filter calculation cost */
|
||||
png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */
|
||||
png_byte heuristic_method PNG_DEPSTRUCT; /* heuristic for row filter selection */
|
||||
png_byte num_prev_filters PNG_DEPSTRUCT; /* number of weights for previous rows */
|
||||
png_bytep prev_filters PNG_DEPSTRUCT; /* filter type(s) of previous row(s) */
|
||||
png_uint_16p filter_weights PNG_DEPSTRUCT; /* weight(s) for previous line(s) */
|
||||
png_uint_16p inv_filter_weights PNG_DEPSTRUCT; /* 1/weight(s) for previous line(s) */
|
||||
png_uint_16p filter_costs PNG_DEPSTRUCT; /* relative filter calculation cost */
|
||||
png_uint_16p inv_filter_costs PNG_DEPSTRUCT; /* 1/relative filter calculation cost */
|
||||
#endif
|
||||
|
||||
#ifdef PNG_TIME_RFC1123_SUPPORTED
|
||||
png_charp time_buffer; /* String to hold RFC 1123 time text */
|
||||
png_charp time_buffer PNG_DEPSTRUCT; /* String to hold RFC 1123 time text */
|
||||
#endif
|
||||
|
||||
/* New members added in libpng-1.0.6 */
|
||||
|
||||
#ifdef PNG_FREE_ME_SUPPORTED
|
||||
png_uint_32 free_me; /* flags items libpng is responsible for freeing */
|
||||
png_uint_32 free_me PNG_DEPSTRUCT; /* flags items libpng is responsible for freeing */
|
||||
#endif
|
||||
|
||||
#ifdef PNG_USER_CHUNKS_SUPPORTED
|
||||
png_voidp user_chunk_ptr;
|
||||
png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */
|
||||
png_voidp user_chunk_ptr PNG_DEPSTRUCT;
|
||||
png_user_chunk_ptr read_user_chunk_fn PNG_DEPSTRUCT; /* user read chunk handler */
|
||||
#endif
|
||||
|
||||
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
int num_chunk_list;
|
||||
png_bytep chunk_list;
|
||||
int num_chunk_list PNG_DEPSTRUCT;
|
||||
png_bytep chunk_list PNG_DEPSTRUCT;
|
||||
#endif
|
||||
|
||||
/* New members added in libpng-1.0.3 */
|
||||
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
|
||||
png_byte rgb_to_gray_status;
|
||||
png_byte rgb_to_gray_status PNG_DEPSTRUCT;
|
||||
/* These were changed from png_byte in libpng-1.0.6 */
|
||||
png_uint_16 rgb_to_gray_red_coeff;
|
||||
png_uint_16 rgb_to_gray_green_coeff;
|
||||
png_uint_16 rgb_to_gray_blue_coeff;
|
||||
png_uint_16 rgb_to_gray_red_coeff PNG_DEPSTRUCT;
|
||||
png_uint_16 rgb_to_gray_green_coeff PNG_DEPSTRUCT;
|
||||
png_uint_16 rgb_to_gray_blue_coeff PNG_DEPSTRUCT;
|
||||
#endif
|
||||
|
||||
/* New member added in libpng-1.0.4 (renamed in 1.0.9) */
|
||||
@@ -1443,76 +1443,77 @@ struct png_struct_def
|
||||
defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
|
||||
/* Changed from png_byte to png_uint_32 at version 1.2.0 */
|
||||
#ifdef PNG_1_0_X
|
||||
png_byte mng_features_permitted;
|
||||
png_byte mng_features_permitted PNG_DEPSTRUCT;
|
||||
#else
|
||||
png_uint_32 mng_features_permitted;
|
||||
png_uint_32 mng_features_permitted PNG_DEPSTRUCT;
|
||||
#endif /* PNG_1_0_X */
|
||||
#endif
|
||||
|
||||
/* New member added in libpng-1.0.7 */
|
||||
#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
|
||||
png_fixed_point int_gamma;
|
||||
png_fixed_point int_gamma PNG_DEPSTRUCT;
|
||||
#endif
|
||||
|
||||
/* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */
|
||||
#ifdef PNG_MNG_FEATURES_SUPPORTED
|
||||
png_byte filter_type;
|
||||
png_byte filter_type PNG_DEPSTRUCT;
|
||||
#endif
|
||||
|
||||
#ifdef PNG_1_0_X
|
||||
/* New member added in libpng-1.0.10, ifdef'ed out in 1.2.0 */
|
||||
png_uint_32 row_buf_size;
|
||||
png_uint_32 row_buf_size PNG_DEPSTRUCT;
|
||||
#endif
|
||||
|
||||
/* New members added in libpng-1.2.0 */
|
||||
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
|
||||
# ifndef PNG_1_0_X
|
||||
# ifdef PNG_MMX_CODE_SUPPORTED
|
||||
png_byte mmx_bitdepth_threshold;
|
||||
png_uint_32 mmx_rowbytes_threshold;
|
||||
png_byte mmx_bitdepth_threshold PNG_DEPSTRUCT;
|
||||
png_uint_32 mmx_rowbytes_threshold PNG_DEPSTRUCT;
|
||||
# endif
|
||||
png_uint_32 asm_flags;
|
||||
png_uint_32 asm_flags PNG_DEPSTRUCT;
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */
|
||||
#ifdef PNG_USER_MEM_SUPPORTED
|
||||
png_voidp mem_ptr; /* user supplied struct for mem functions */
|
||||
png_malloc_ptr malloc_fn; /* function for allocating memory */
|
||||
png_free_ptr free_fn; /* function for freeing memory */
|
||||
png_voidp mem_ptr PNG_DEPSTRUCT; /* user supplied struct for mem functions */
|
||||
png_malloc_ptr malloc_fn PNG_DEPSTRUCT; /* function for allocating memory */
|
||||
png_free_ptr free_fn PNG_DEPSTRUCT; /* function for freeing memory */
|
||||
#endif
|
||||
|
||||
/* New member added in libpng-1.0.13 and 1.2.0 */
|
||||
png_bytep big_row_buf; /* buffer to save current (unfiltered) row */
|
||||
png_bytep big_row_buf PNG_DEPSTRUCT; /* buffer to save current (unfiltered) row */
|
||||
|
||||
#ifdef PNG_READ_DITHER_SUPPORTED
|
||||
/* The following three members were added at version 1.0.14 and 1.2.4 */
|
||||
png_bytep dither_sort; /* working sort array */
|
||||
png_bytep index_to_palette; /* where the original index currently is */
|
||||
png_bytep dither_sort PNG_DEPSTRUCT; /* working sort array */
|
||||
png_bytep index_to_palette PNG_DEPSTRUCT; /* where the original index currently is */
|
||||
/* in the palette */
|
||||
png_bytep palette_to_index; /* which original index points to this */
|
||||
png_bytep palette_to_index PNG_DEPSTRUCT; /* which original index points to this */
|
||||
/* palette color */
|
||||
#endif
|
||||
|
||||
/* New members added in libpng-1.0.16 and 1.2.6 */
|
||||
png_byte compression_type;
|
||||
png_byte compression_type PNG_DEPSTRUCT;
|
||||
|
||||
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
|
||||
png_uint_32 user_width_max;
|
||||
png_uint_32 user_height_max;
|
||||
png_uint_32 user_width_max PNG_DEPSTRUCT;
|
||||
png_uint_32 user_height_max PNG_DEPSTRUCT;
|
||||
#endif
|
||||
|
||||
/* New member added in libpng-1.0.25 and 1.2.17 */
|
||||
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
|
||||
/* Storage for unknown chunk that the library doesn't recognize. */
|
||||
png_unknown_chunk unknown_chunk;
|
||||
png_unknown_chunk unknown_chunk PNG_DEPSTRUCT;
|
||||
#endif
|
||||
|
||||
/* New members added in libpng-1.2.26 */
|
||||
png_uint_32 old_big_row_buf_size, old_prev_row_size;
|
||||
png_uint_32 old_big_row_buf_size PNG_DEPSTRUCT;
|
||||
png_uint_32 old_prev_row_size PNG_DEPSTRUCT;
|
||||
|
||||
/* New member added in libpng-1.2.30 */
|
||||
png_charp chunkdata; /* buffer for reading chunk data */
|
||||
png_charp chunkdata PNG_DEPSTRUCT; /* buffer for reading chunk data */
|
||||
|
||||
|
||||
};
|
||||
|
||||
Reference in New Issue
Block a user