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Imported from libpng-1.0.1d.tar

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Glenn Randers-Pehrson
1998-05-21 09:27:50 -05:00
parent d0dce40075
commit 8686fff347
35 changed files with 1252 additions and 182 deletions
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18
pngrio.c
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@@ -1,17 +1,17 @@
/* pngrio.c - functions for data input
*
* libpng 1.0.1c
* libpng 1.0.1d
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson
* May 9, 1998
* May 21, 1998
*
* This file provides a location for all input. Users which need
* special handling are expected to write a function which has the same
* arguments as this, and perform a similar function, but possibly has
* a different input method. Note that you shouldn't change this
* This file provides a location for all input. Users who need
* special handling are expected to write a function that has the same
* arguments as this and performs a similar function, but that possibly
* has a different input method. Note that you shouldn't change this
* function, but rather write a replacement function and then make
* libpng use it at run time with png_set_read_fn(...).
*/
@@ -35,7 +35,7 @@ png_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
}
#if !defined(PNG_NO_STDIO)
/* This is the function which does the actual reading of data. If you are
/* This is the function that does the actual reading of data. If you are
not reading from a standard C stream, you should create a replacement
read_data function and use it at run time with png_set_read_fn(), rather
than changing the library. */
@@ -114,10 +114,10 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
png_ptr - pointer to a png input data structure
io_ptr - pointer to user supplied structure containing info about
the input functions. May be NULL.
read_data_fn - pointer to a new input function which takes as it's
read_data_fn - pointer to a new input function that takes as its
arguments a pointer to a png_struct, a pointer to
a location where input data can be stored, and a 32-bit
unsigned int which is the number of bytes to be read.
unsigned int that is the number of bytes to be read.
To exit and output any fatal error messages the new write
function should call png_error(png_ptr, "Error msg"). */
void