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[libpng17] Minor editing of man page

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Glenn Randers-Pehrson 2015-02-18 12:22:13 -06:00
parent f0341bae80
commit ab2ef2ceb1
2 changed files with 14 additions and 14 deletions
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14
libpng-manual.txt
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@ -1273,13 +1273,13 @@ in until png_read_end() has read the chunk data following the image.
the PNG datastream is embedded in the PNG datastream is embedded in
a MNG-1.0 datastream) a MNG-1.0 datastream)
Any or all of color_tye, bit_depth, interlace_type, Any of width, height, color_type, bit_depth,
compression_type, or filter_method can be NULL if you interlace_type, compression_type, or filter_method can
are not interested in their values. be NULL if you are not interested in their values.
Note that png_get_IHDR() returns png_uint_32 data into Note that png_get_IHDR() returns png_uint_32 data into
the application's width and height variables. the application's width and height variables.
This is an unsafe situation if these are 16-bit This is an unsafe situation if these are not png_uint_32
variables, or if they are 32-bit variables on a 64-bit variables, or if they are 32-bit variables on a 64-bit
platform. In such situations, the png_get_image_width() platform. In such situations, the png_get_image_width()
and png_get_image_height() functions described below are and png_get_image_height() functions described below are
@ -5043,8 +5043,8 @@ where "rp" indicates a "restricted pointer".
Error detection in some chunks has improved; in particular the iCCP chunk Error detection in some chunks has improved; in particular the iCCP chunk
reader now does pretty complete validation of the basic format. Some bad reader now does pretty complete validation of the basic format. Some bad
profiles that were previously accepted are now accepted with a warning or profiles that were previously accepted are now accepted with a warning or
rejected, depending upon the png_set_benign_errors() setting, in particular the rejected, depending upon the png_set_benign_errors() setting, in particular
very old broken Microsoft/HP 3144-byte sRGB profile. Starting with the very old broken Microsoft/HP 3144-byte sRGB profile. Starting with
libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by
means of means of
@ -5055,7 +5055,7 @@ means of
#endif #endif
It's not a good idea to do this if you are using the "simplified API", It's not a good idea to do this if you are using the "simplified API",
which needs to be able to recognize an sRGB profile conveyed via the iCCP which needs to be able to recognize sRGB profiles conveyed via the iCCP
chunk. chunk.
The PNG spec requirement that only grayscale profiles may appear in images The PNG spec requirement that only grayscale profiles may appear in images

14
libpng.3
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@ -1767,13 +1767,13 @@ in until png_read_end() has read the chunk data following the image.
the PNG datastream is embedded in the PNG datastream is embedded in
a MNG-1.0 datastream) a MNG-1.0 datastream)
Any or all of color_tye, bit_depth, interlace_type, Any of width, height, color_type, bit_depth,
compression_type, or filter_method can be NULL if you interlace_type, compression_type, or filter_method can
are not interested in their values. be NULL if you are not interested in their values.
Note that png_get_IHDR() returns png_uint_32 data into Note that png_get_IHDR() returns png_uint_32 data into
the application's width and height variables. the application's width and height variables.
This is an unsafe situation if these are 16-bit This is an unsafe situation if these are not png_uint_32
variables, or if they are 32-bit variables on a 64-bit variables, or if they are 32-bit variables on a 64-bit
platform. In such situations, the png_get_image_width() platform. In such situations, the png_get_image_width()
and png_get_image_height() functions described below are and png_get_image_height() functions described below are
@ -5537,8 +5537,8 @@ where "rp" indicates a "restricted pointer".
Error detection in some chunks has improved; in particular the iCCP chunk Error detection in some chunks has improved; in particular the iCCP chunk
reader now does pretty complete validation of the basic format. Some bad reader now does pretty complete validation of the basic format. Some bad
profiles that were previously accepted are now accepted with a warning or profiles that were previously accepted are now accepted with a warning or
rejected, depending upon the png_set_benign_errors() setting, in particular the rejected, depending upon the png_set_benign_errors() setting, in particular
very old broken Microsoft/HP 3144-byte sRGB profile. Starting with the very old broken Microsoft/HP 3144-byte sRGB profile. Starting with
libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by
means of means of
@ -5549,7 +5549,7 @@ means of
#endif #endif
It's not a good idea to do this if you are using the "simplified API", It's not a good idea to do this if you are using the "simplified API",
which needs to be able to recognize an sRGB profile conveyed via the iCCP which needs to be able to recognize sRGB profiles conveyed via the iCCP
chunk. chunk.
The PNG spec requirement that only grayscale profiles may appear in images The PNG spec requirement that only grayscale profiles may appear in images