Imported from libpng-0.99a.tar
This commit is contained in:
parent
46f61e2398
commit
b212002101
5
CHANGES
5
CHANGES
@ -200,7 +200,7 @@ version 0.98 [January, 1998]
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PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED
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added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent)
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changed srgb_intent from png_byte to int to avoid compiler bugs
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version 0.99 [January, 1998]
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version 0.99 [January 30, 1998]
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free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler)
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fixed a longstanding "packswap" bug in pngtrans.c
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fixed some inconsistencies in pngconf.h that prevented compiling with
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@ -213,3 +213,6 @@ version 0.99 [January, 1998]
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added TARGET_MACOS similar to zlib-1.0.8
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define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined
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added type casting to all png_malloc() function calls
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version 0.99a [January 31, 1998]
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added type casts and parentheses to all returns that return a value.(Tim W.)
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2
README
2
README
@ -1,4 +1,4 @@
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[NOTE: this is still beta version 0.99; the text below has already
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[NOTE: this is still beta version 0.99a; the text below has already
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been updated in anticipation of the imminent 1.0 release.]
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@ -1,9 +1,9 @@
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libpng.txt - a description on how to use and modify libpng
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libpng version 0.99
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libpng version 0.99a
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Updated and distributed by Glenn Randers-Pehrson <randeg@alumni.rpi.edu>
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Copyright (c) 1998, Glenn Randers-Pehrson
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January 30, 1998
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January 31, 1998
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based on:
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20
png.c
20
png.c
@ -1,12 +1,12 @@
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/* png.c - location for general purpose libpng functions
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*/
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#define PNG_INTERNAL
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@ -16,7 +16,7 @@
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/* Version information for C files. This had better match the version
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* string defined in png.h.
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*/
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char png_libpng_ver[5] = "0.99";
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char png_libpng_ver[6] = "0.99";
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/* Place to hold the signature string for a PNG file. */
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png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
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@ -103,15 +103,15 @@ png_sig_cmp(png_bytep sig, png_size_t start, png_size_t num_to_check)
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if (num_to_check > 8)
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num_to_check = 8;
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else if (num_to_check < 1)
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return 0;
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return (0);
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if (start > 7)
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return 0;
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return (0);
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if (start + num_to_check > 8)
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num_to_check = 8 - start;
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return (png_memcmp(&sig[start], &png_sig[start], num_to_check));
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return ((int)(png_memcmp(&sig[start], &png_sig[start], num_to_check)));
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}
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/* (Obsolete) function to check signature bytes. It does not allow one
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@ -121,7 +121,7 @@ png_sig_cmp(png_bytep sig, png_size_t start, png_size_t num_to_check)
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int
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png_check_sig(png_bytep sig, int num)
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{
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return !png_sig_cmp(sig, (png_size_t)0, (png_size_t)num);
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return ((int)!png_sig_cmp(sig, (png_size_t)0, (png_size_t)num));
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}
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/* Function to allocate memory for zlib. */
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@ -143,7 +143,7 @@ png_zalloc(voidpf png_ptr, uInt items, uInt size)
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{
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png_memset(ptr, 0, (png_size_t)num_bytes);
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}
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return (voidpf)(ptr);
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return ((voidpf)ptr);
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}
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/* function to free memory for zlib */
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@ -205,7 +205,7 @@ png_create_info_struct(png_structp png_ptr)
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png_info_init(info_ptr);
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}
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return info_ptr;
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return (info_ptr);
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}
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/* This function frees the memory associated with a single info struct.
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@ -286,7 +286,7 @@ png_info_destroy(png_structp png_ptr, png_infop info_ptr)
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png_voidp
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png_get_io_ptr(png_structp png_ptr)
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{
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return png_ptr->io_ptr;
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return (png_ptr->io_ptr);
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}
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#if !defined(PNG_NO_STDIO)
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5
png.h
5
png.h
@ -1,12 +1,12 @@
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/* png.h - header file for PNG reference library
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*
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* libpng 0.99 beta
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* libpng 0.99a beta
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998 Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*
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* Note about libpng version numbers:
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*
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@ -27,6 +27,7 @@
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* 0.97c 0.97 2.0.97
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* 0.98 0.98 2.0.98
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* 0.99 0.99 2.0.99
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* 0.99a 0.99 2.0.99
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* 1.0 1.00 2.1.0
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*
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* Henceforth the source version will match the shared-library minor
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@ -1,12 +1,12 @@
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/* pngconf.c - machine configurable file for libpng
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*/
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/* Any machine specific code is near the front of this file, so if you
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@ -1,12 +1,12 @@
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/* pngerror.c - stub functions for i/o and memory allocation
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*
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* This file provides a location for all error handling. Users which
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* need special error handling are expected to write replacement functions
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@ -167,7 +167,7 @@ png_set_error_fn(png_structp png_ptr, png_voidp error_ptr,
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png_voidp
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png_get_error_ptr(png_structp png_ptr)
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{
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return png_ptr->error_ptr;
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return ((png_voidp)png_ptr->error_ptr);
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}
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12
pngget.c
12
pngget.c
@ -1,12 +1,12 @@
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/* pngget.c - retrieval of values from info struct
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*/
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#define PNG_INTERNAL
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@ -126,14 +126,14 @@ png_get_pixel_aspect_ratio(png_structp png_ptr, png_infop info_ptr)
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{
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png_debug1(1, "in %s retrieval function\n", "png_get_aspect_ratio");
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if (info_ptr->x_pixels_per_unit == 0)
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return NULL;
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return (0.0);
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else
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return (float)info_ptr->y_pixels_per_unit
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/(float)info_ptr->x_pixels_per_unit;
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return ((float)info_ptr->y_pixels_per_unit
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/(float)info_ptr->x_pixels_per_unit);
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}
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else
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#endif
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return (0);
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return (0.0);
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}
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png_uint_32
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16
pngmem.c
16
pngmem.c
@ -1,11 +1,11 @@
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/* pngmem.c - stub functions for memory allocation
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*
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* This file provides a location for all memory allocation. Users which
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* need special memory handling are expected to modify the code in this file
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@ -42,7 +42,7 @@ png_create_struct(int type)
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else if (type == PNG_STRUCT_PNG)
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size = sizeof(png_struct);
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else
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return (png_voidp)NULL;
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return ((png_voidp)NULL);
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if ((struct_ptr = (png_voidp)farmalloc(size)) != NULL)
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{
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@ -88,7 +88,7 @@ PNG_MALLOC(png_structp png_ptr, png_uint_32 size)
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{
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png_voidp ret;
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if (png_ptr == NULL || size == 0)
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return ((voidp)NULL);
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return ((png_voidp)NULL);
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#ifdef PNG_MAX_MALLOC_64K
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if (size > (png_uint_32)65536L)
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@ -177,7 +177,7 @@ PNG_MALLOC(png_structp png_ptr, png_uint_32 size)
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png_error(png_ptr, "Out of memory."); /* Note "o" and "m" */
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}
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return ret;
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return (ret);
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}
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/* free a pointer allocated by PNG_MALLOC(). In the default
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@ -234,7 +234,7 @@ png_create_struct(int type)
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else if (type == PNG_STRUCT_PNG)
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size = sizeof(png_struct);
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else
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return (png_voidp)NULL;
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return ((png_voidp)NULL);
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#if defined(__TURBOC__) && !defined(__FLAT__)
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if ((struct_ptr = (png_voidp)farmalloc(size)) != NULL)
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@ -286,7 +286,7 @@ PNG_MALLOC(png_structp png_ptr, png_uint_32 size)
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{
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png_voidp ret;
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if (png_ptr == NULL || size == 0)
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return (NULL);
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return ((png_voidp)NULL);
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#ifdef PNG_MAX_MALLOC_64K
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if (size > (png_uint_32)65536L)
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@ -308,7 +308,7 @@ PNG_MALLOC(png_structp png_ptr, png_uint_32 size)
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png_error(png_ptr, "Out of Memory");
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}
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return ret;
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return (ret);
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}
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/* Free a pointer allocated by PNG_MALLOC(). In the default
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@ -1,12 +1,12 @@
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/* pngpread.c - read a png file in push mode
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*/
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#define PNG_INTERNAL
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@ -1,12 +1,12 @@
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/* pngread.c - read a PNG file
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*
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* This file contains routines that an application calls directly to
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* read a PNG file or stream.
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4
pngrio.c
4
pngrio.c
@ -1,12 +1,12 @@
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/* pngrio.c - functions for data input
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*
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* This file provides a location for all input. Users which need
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* special handling are expected to write a function which has the same
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@ -1,12 +1,12 @@
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/* pngrtran.c - transforms the data in a row for PNG readers
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*
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* This file contains functions optionally called by an application
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* in order to tell libpng how to handle data when reading a PNG.
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18
pngrutil.c
18
pngrutil.c
@ -1,12 +1,12 @@
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/* pngrutil.c - utilities to read a PNG file
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*
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* This file contains routines which are only called from within
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* libpng itself during the course of reading an image.
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@ -27,7 +27,7 @@ png_get_uint_32(png_bytep buf)
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((png_uint_32)(*(buf + 2)) << 8) +
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(png_uint_32)(*(buf + 3));
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return i;
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return (i);
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}
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#if defined(PNG_READ_pCAL_SUPPORTED)
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@ -44,7 +44,7 @@ png_get_int_32(png_bytep buf)
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((png_int_32)(*(buf + 2)) << 8) +
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(png_int_32)(*(buf + 3));
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return i;
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return (i);
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}
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#endif /* PNG_READ_pCAL_SUPPORTED */
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@ -57,7 +57,7 @@ png_get_uint_16(png_bytep buf)
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i = (png_uint_16)(((png_uint_16)(*buf) << 8) +
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(png_uint_16)(*(buf + 1)));
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return i;
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return (i);
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}
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#endif /* PNG_READ_BIG_ENDIAN_SUPPORTED */
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@ -100,10 +100,10 @@ png_crc_finish(png_structp png_ptr, png_uint_32 skip)
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{
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png_chunk_error(png_ptr, "CRC error");
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}
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return 1;
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return (1);
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}
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return 0;
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return (0);
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}
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/* Compare the CRC stored in the PNG file with that calculated by libpng from
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@ -132,10 +132,10 @@ png_crc_error(png_structp png_ptr)
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if (need_crc)
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{
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crc = png_get_uint_32(crc_bytes);
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return (crc != png_ptr->crc);
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return ((int)(crc != png_ptr->crc));
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}
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else
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return 0;
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return (0);
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}
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4
pngset.c
4
pngset.c
@ -1,12 +1,12 @@
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/* pngset.c - storage of image information into info struct
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*
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* libpng 0.99
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* libpng 0.99a
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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* Copyright (c) 1996, 1997 Andreas Dilger
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* Copyright (c) 1998, Glenn Randers-Pehrson
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* January 30, 1998
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* January 31, 1998
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*
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* The functions here are used during reads to store data from the file
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* into the info struct, and during writes to store application data
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|
32
pngtest.c
32
pngtest.c
@ -1,12 +1,12 @@
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/* pngtest.c - a simple test program to test libpng
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*
|
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* libpng 0.99
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* libpng 0.99a
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* 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
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* Copyright (c) 1998, Glenn Randers-Pehrson
|
||||
* January 30, 1998
|
||||
* January 31, 1998
|
||||
*
|
||||
* This program reads in a PNG image, writes it out again, and then
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* compares the two files. If the files are identical, this shows that
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@ -281,10 +281,10 @@ png_voidp
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png_malloc(png_structp png_ptr, png_uint_32 size) {
|
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if (png_ptr == NULL) {
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fprintf(STDERR, "NULL pointer to memory allocator\n");
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return NULL;
|
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return (NULL);
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}
|
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if (size == 0)
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return NULL;
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return (NULL);
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/* This calls the library allocator twice, once to get the requested
|
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buffer and once to get a new free list entry. */
|
||||
@ -299,7 +299,7 @@ png_malloc(png_structp png_ptr, png_uint_32 size) {
|
||||
pinformation = pinfo;
|
||||
/* Make sure the caller isn't assuming zeroed memory. */
|
||||
png_memset(pinfo->pointer, 0xdd, pinfo->size);
|
||||
return pinfo->pointer;
|
||||
return ((png_voidp)pinfo->pointer);
|
||||
}
|
||||
}
|
||||
|
||||
@ -369,14 +369,14 @@ int test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
if ((fpin = fopen(inname, "rb")) == NULL)
|
||||
{
|
||||
fprintf(STDERR, "Could not find input file %s\n", inname);
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
|
||||
if ((fpout = fopen(outname, "wb")) == NULL)
|
||||
{
|
||||
fprintf(STDERR, "Could not open output file %s\n", outname);
|
||||
fclose(fpin);
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
|
||||
png_debug(0, "Allocating read and write structures\n");
|
||||
@ -409,7 +409,7 @@ int test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
png_destroy_write_struct(&write_ptr, &write_info_ptr);
|
||||
fclose(fpin);
|
||||
fclose(fpout);
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
|
||||
png_debug(0, "Setting jmpbuf for write struct\n");
|
||||
@ -425,7 +425,7 @@ int test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
png_destroy_write_struct(&write_ptr, &write_info_ptr);
|
||||
fclose(fpin);
|
||||
fclose(fpout);
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
|
||||
#ifdef USE_FAR_KEYWORD
|
||||
@ -621,7 +621,7 @@ int test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
png_destroy_write_struct(&write_ptr, &write_info_ptr);
|
||||
fclose(fpin);
|
||||
fclose(fpout);
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
|
||||
num_pass = png_set_interlace_handling(read_ptr);
|
||||
@ -663,14 +663,14 @@ int test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
if ((fpin = fopen(inname, "rb")) == NULL)
|
||||
{
|
||||
fprintf(STDERR, "Could not find file %s\n", inname);
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
|
||||
if ((fpout = fopen(outname, "rb")) == NULL)
|
||||
{
|
||||
fprintf(STDERR, "Could not find file %s\n", outname);
|
||||
fclose(fpin);
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
|
||||
while (1)
|
||||
@ -686,7 +686,7 @@ int test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
inname, outname);
|
||||
fclose(fpin);
|
||||
fclose(fpout);
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
|
||||
if (!num_in)
|
||||
@ -697,14 +697,14 @@ int test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
fprintf(STDERR, "Files %s and %s are different\n", inname, outname);
|
||||
fclose(fpin);
|
||||
fclose(fpout);
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
}
|
||||
|
||||
fclose(fpin);
|
||||
fclose(fpout);
|
||||
|
||||
return 0;
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* input and output filenames */
|
||||
@ -867,5 +867,5 @@ main(int argc, char *argv[])
|
||||
fprintf(STDERR, "libpng passes test\n");
|
||||
else
|
||||
fprintf(STDERR, "libpng FAILS test\n");
|
||||
return ierror != 0;
|
||||
return ((int)(ierror != 0));
|
||||
}
|
||||
|
@ -1,12 +1,12 @@
|
||||
|
||||
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
|
||||
*
|
||||
* libpng 0.99
|
||||
* libpng 0.99a
|
||||
* 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
|
||||
* January 30, 1998
|
||||
* January 31, 1998
|
||||
*/
|
||||
|
||||
#define PNG_INTERNAL
|
||||
@ -77,10 +77,10 @@ png_set_interlace_handling(png_structp png_ptr)
|
||||
if (png_ptr->interlaced)
|
||||
{
|
||||
png_ptr->transformations |= PNG_INTERLACE;
|
||||
return 7;
|
||||
return (7);
|
||||
}
|
||||
|
||||
return 1;
|
||||
return (1);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
4
pngwio.c
4
pngwio.c
@ -1,12 +1,12 @@
|
||||
|
||||
/* pngwio.c - functions for data output
|
||||
*
|
||||
* libpng 0.99
|
||||
* libpng 0.99a
|
||||
* 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
|
||||
* January 30, 1998
|
||||
* January 31, 1998
|
||||
*
|
||||
* This file provides a location for all output. Users which need
|
||||
* special handling are expected to write functions which have the same
|
||||
|
12
pngwrite.c
12
pngwrite.c
@ -1,12 +1,12 @@
|
||||
|
||||
/* pngwrite.c - general routines to write a PNG file
|
||||
*
|
||||
* libpng 0.99
|
||||
* libpng 0.99a
|
||||
* 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
|
||||
* January 30, 1998
|
||||
* January 31, 1998
|
||||
*/
|
||||
|
||||
/* get internal access to png.h */
|
||||
@ -249,7 +249,7 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
|
||||
ptime->year, ptime->hour % 24, ptime->minute % 60,
|
||||
ptime->second % 61);
|
||||
#endif
|
||||
return png_ptr->time_buffer;
|
||||
return ((png_charp)png_ptr->time_buffer);
|
||||
}
|
||||
#endif /* PNG_TIME_RFC1123_SUPPORTED */
|
||||
|
||||
@ -289,7 +289,7 @@ png_create_write_struct(png_const_charp user_png_ver, voidp error_ptr,
|
||||
png_debug(1, "in png_create_write_struct\n");
|
||||
if ((png_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG)) == NULL)
|
||||
{
|
||||
return (png_structp)NULL;
|
||||
return ((png_structp)NULL);
|
||||
}
|
||||
#ifdef USE_FAR_KEYWORD
|
||||
if (setjmp(jmpbuf))
|
||||
@ -299,7 +299,7 @@ png_create_write_struct(png_const_charp user_png_ver, voidp error_ptr,
|
||||
{
|
||||
png_free(png_ptr, png_ptr->zbuf);
|
||||
png_destroy_struct(png_ptr);
|
||||
return (png_structp)NULL;
|
||||
return ((png_structp)NULL);
|
||||
}
|
||||
#ifdef USE_FAR_KEYWORD
|
||||
png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf));
|
||||
@ -329,7 +329,7 @@ png_create_write_struct(png_const_charp user_png_ver, voidp error_ptr,
|
||||
1, NULL, NULL);
|
||||
#endif
|
||||
|
||||
return (png_ptr);
|
||||
return ((png_structp)png_ptr);
|
||||
}
|
||||
|
||||
|
||||
|
@ -1,12 +1,12 @@
|
||||
|
||||
/* pngwtran.c - transforms the data in a row for PNG writers
|
||||
*
|
||||
* libpng 0.99
|
||||
* libpng 0.99a
|
||||
* 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
|
||||
* January 30, 1998
|
||||
* January 31, 1998
|
||||
*/
|
||||
|
||||
#define PNG_INTERNAL
|
||||
|
@ -1,12 +1,12 @@
|
||||
|
||||
/* pngwutil.c - utilities to write a PNG file
|
||||
*
|
||||
* libpng 0.99
|
||||
* libpng 0.99a
|
||||
* 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
|
||||
* January 30, 1998
|
||||
* January 31, 1998
|
||||
*/
|
||||
|
||||
#define PNG_INTERNAL
|
||||
@ -599,7 +599,7 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
|
||||
if (key == NULL || (key_len = png_strlen(key)) == 0)
|
||||
{
|
||||
png_chunk_warning(png_ptr, "zero length keyword");
|
||||
return 0;
|
||||
return ((png_size_t)0);
|
||||
}
|
||||
|
||||
png_debug1(2, "Keyword to be checked is '%s'\n", key);
|
||||
@ -688,7 +688,7 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
|
||||
key_len = 79;
|
||||
}
|
||||
|
||||
return key_len;
|
||||
return (key_len);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user