Imported from libpng-1.0.4-pre1.tar
This commit is contained in:
Glenn Randers-Pehrson
parent
87544ac62b
commit
4393a9ad6b
91
ANNOUNCE
91
ANNOUNCE
@ -1,53 +1,56 @@
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Libpng 1.0.3 - January 14, 1999
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Libpng 1.0.4 - September 17, 1999
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This is a public release of libpng, intended for use in production codes.
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Changes since the previous public release (1.0.2):
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Changes since the last public release (1.0.3):
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libpng-1.0.3:
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Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
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Fixed a bug in png_do_filler() that made it fail to write filler bytes in
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the left-most pixel of each row (Kevin Bracey).
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Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
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in pngtest.c (Duncan Simpson).
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Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
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even when no tIME chunk was present in the source file.
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Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
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Fixed a problem in png_read_push_finish_row(), which would not skip some
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passes that it should skip, for images that are less than 3 pixels high.
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Interchanged the order of calls to png_do_swap() and png_do_shift()
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in pngwtran.c (John Cromer).
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Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h .
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Changed "bad adaptive filter type" from error to warning in pngrutil.c .
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Fixed a documentation error about default filtering with 8-bit indexed-color.
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Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO
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(L. Peter Deutsch).
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Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
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Added png_get_copyright() and png_get_header_version() functions.
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Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c
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Added information about debugging in libpng.txt and libpng.3 .
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Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and makefile.sco.
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Removed lines after Dynamic Dependencies" in makefile.aco .
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Revised makefile.dec to make a shared library (Jeremie Petit).
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Removed trailing blanks from all files.
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Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
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Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
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Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
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Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
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which is obsolete.
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Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
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Added a statement of Y2K compliance in png.h, libpng.1, and Y2KINFO.
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Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning
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if an attempt is made to read an interlaced image when it's not supported.
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Added check if png_ptr->trans is defined before free'ing it in pngread.c
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Modified the Y2K statement to include versions back to version 0.71
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Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c
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Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments)
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Replaced leading blanks with tab characters in makefile.hux
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Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents.
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Changed (float)red and (float)green to (double)red, (double)green
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in png_set_rgb_to_gray() to avoid "promotion" problems in AIX.
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Fixed a bug in pngconf.h that omitted <stdio.h> when PNG_DEBUG==0 (K Bracey).
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Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt).
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Updated documentation to refer to the PNG-1.2 specification.
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Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c
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in makefile.knr, INSTALL, and README (L. Peter Deutsch)
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Fixed bugs in calculation of the length of rowbytes when adding alpha
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channels to 16-bit images, in pngrtran.c (Chris Nokleberg)
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Added function png_set_user_transform_info() to store user_transform_ptr,
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user_depth, and user_channels into the png_struct, and a function
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png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg)
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Added function png_set_empty_plte_permitted() to make libpng useable
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in MNG applications.
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Corrected the typedef for png_free_ptr in png.h (Jesse Jones).
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Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be
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consistent with PNG-1.2, and allow variance of 500 before complaining.
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Added assembler code contributed by Intel in file pngvcrd.c and modified
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makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation, Gilles Vollant)
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Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code.
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Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy.
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Added makefile.beo for BEOS on X86, contributed by Sander Stok.
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Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h
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Changed leading blanks to tabs in all makefiles.
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Made alternate versions of png_set_expand() in pngrtran.c, namely
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png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha
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(Greg Roelofs, in "PNG: The Definitive Guide").
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Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h
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Revised calculation of num_blocks in pngmem.c to avoid a potentially
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negative shift distance, whose results are undefined in the C language.
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Added a check in pngset.c to prevent writing multiple tIME chunks.
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Added a check in pngwrite.c to detect invalid small window_bits sizes.
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Added a demo read_user_transform_fn that examines the row filters in pngtest.c
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Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined
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Made several minor corrections to pngtest.c
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Changed "hptr += 16L" to "hptr = hptr + 16L" in pngmem.c for Turbo 3.0
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Send comments/corrections/commendations to
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png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu
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png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
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Glenn R-P
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Send comments/corrections/commendations to
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png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu
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Glenn Randers-Pehrson
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libpng maintainer
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PNG Development Group
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55
CHANGES
55
CHANGES
@ -386,4 +386,57 @@ version 1.0.2a [January 6, 1999]
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which is obsolete.
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version 1.0.3 [January 14, 1999]
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Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
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Added a statement of Y2K compliance in png.h, libpng.1, and Y2KINFO.
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Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO.
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version 1.0.3a [August 12, 1999]
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Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning
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if an attempt is made to read an interlaced image when it's not supported.
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Added check if png_ptr->trans is defined before free'ing it in pngread.c
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Modified the Y2K statement to include versions back to version 0.71
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Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c
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Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments)
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Replaced leading blanks with tab characters in makefile.hux
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Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents.
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Changed (float)red and (float)green to (double)red, (double)green
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in png_set_rgb_to_gray() to avoid "promotion" problems in AIX.
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Fixed a bug in pngconf.h that omitted <stdio.h> when PNG_DEBUG==0 (K Bracey).
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Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt).
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Updated documentation to refer to the PNG-1.2 specification.
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Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c
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in makefile.knr, INSTALL, and README (L. Peter Deutsch)
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Fixed bugs in calculation of the length of rowbytes when adding alpha
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channels to 16-bit images, in pngrtran.c (Chris Nokleberg)
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Added function png_set_user_transform_info() to store user_transform_ptr,
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user_depth, and user_channels into the png_struct, and a function
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png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg)
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Added function png_set_empty_plte_permitted() to make libpng useable
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in MNG applications.
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Corrected the typedef for png_free_ptr in png.h (Jesse Jones).
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Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be
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consistent with PNG-1.2, and allow variance of 500 before complaining.
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Added assembler code contributed by Intel in file pngvcrd.c and modified
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makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation, Gilles Vollant)
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Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy.
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Added some aliases for png_set_expand() in pngrtran.c, namely
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png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS()
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(Greg Roelofs, in "PNG: The Definitive Guide").
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Added makefile.beo for BEOS on X86, contributed by Sander Stok.
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version 1.0.3b [August 26, 1999]
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Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h
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Changed leading blanks to tabs in all makefiles.
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Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code.
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Made alternate versions of png_set_expand() in pngrtran.c, namely
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png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha
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(Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases.
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Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h
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Revised calculation of num_blocks in pngmem.c to avoid a potentially
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negative shift distance, whose results are undefined in the C language.
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Added a check in pngset.c to prevent writing multiple tIME chunks.
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Added a check in pngwrite.c to detect invalid small window_bits sizes.
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version 1.0.3d [September 4, 1999]
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Fixed type casting of igamma in pngrutil.c
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Added new png_expand functions to scripts/pngdef.pas and pngos2.def
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Added a demo read_user_transform_fn that examines the row filters in pngtest.c
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version 1.0.4 [September 17, 1999]
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Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined
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Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h
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Made several minor corrections to pngtest.c
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12
INSTALL
12
INSTALL
@ -1,5 +1,5 @@
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Installing libpng version 1.0.3 - January 14, 1999
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Installing libpng version 1.0.4 - September 17, 1999
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Before installing libpng, you must first install zlib. zlib
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can usually be found wherever you got libpng. zlib can be
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@ -10,7 +10,7 @@ zlib.h and zconf.h include files that correspond to the
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version of zlib that's installed.
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You can rename the directories that you downloaded (they
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might be called "libpng-1.0.3" or "lpng103" and "zlib-1.1.3"
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might be called "libpng-1.0.4" or "lpng103" and "zlib-1.1.3"
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or "zlib113") so that you have directories called "zlib" and "libpng".
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Your directory structure should look like this:
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@ -41,18 +41,21 @@ include
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descrip.mms => VMS makefile for MMS or MMK
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makefile.std => Generic UNIX makefile
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makefile.knr => Archaic UNIX Makefile that converts files with ansi2knr
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(Requires ansi2knr.c from ftp://ftp.cs.wisc.edu/ghost)
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makefile.dec => DEC Alpha UNIX makefile
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makefile.hux => HPUX (10.20 and 11.00) makefile
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makefile.sgi => Silicon Graphics IRIX makefile
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makefile.sun => Sun makefile
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makefile.s2x => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0)
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makefile.lnx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0)
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makefile.s2x => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.4)
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makefile.lnx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.4)
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makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
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makefile.mip => MIPS makefile
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makefile.aco => Acorn makefile
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makefile.ama => Amiga makefile
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smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
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(Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
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makefile.atr => Atari makefile
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makefile.beo => BEOS makefile for X86
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makefile.bor => Borland makefile
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build.bat => MS-DOS batch file for Borland compiler
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makefile.dj2 => DJGPP 2 makefile
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@ -65,6 +68,7 @@ include
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makevms.com => VMS build script
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pngdll.mak => To make a png32bd.dll with Borland C++ 4.5
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pngdef.pas => Defines for a png32bd.dll with Borland C++ 4.5
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SCOPTIONS.ppc => Used with smakefile.ppc
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Copy the file (or files) that you need from the
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scripts directory into this directory, for example
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14
KNOWNBUG
14
KNOWNBUG
@ -1,5 +1,5 @@
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Known bugs and suggested enhancements in libpng-1.0.3
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Known bugs and suggested enhancements in libpng-1.0.4
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1. March 15, 1998 -- OPTIMIZATION -- Kevin Bracey
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@ -14,12 +14,12 @@ Known bugs and suggested enhancements in libpng-1.0.3
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Question whether i-- or --i is better.
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STATUS: Under investigation, postponed until after
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libpng-1.0.3. About 160 loops will be turned around
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libpng-1.0.4. About 160 loops will be turned around
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in libpng-1.0.Nn, for testing.
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2. July 4, 1998 -- ENHANCEMENT -- Glenn R-P
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libpng-1.0.2 and earlier transform colors to gamma=1.0 space for
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libpng-1.0.4 and earlier transform colors to gamma=1.0 space for
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merging with background, and then back to the image's gamma. The
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bit_depth of the intermediate (gamma=1.0) representation is probably
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not sufficient. In the typical gamma=1/2.2 situation, the linear
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@ -29,4 +29,12 @@ Known bugs and suggested enhancements in libpng-1.0.3
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STATUS: under development.
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3. September 1999 -- ENHANCEMENT --
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It should be possible to use libpng without floating-point aritmetic.
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STATUS: Under investigation, implementation postponed until after
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libpng-1.0.4. The application interface will change because replacements
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for the png_set_gAMA(), png_set_cHRM(), and corresponding png_get_()
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functions will be needed.
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20
README
20
README
@ -1,4 +1,4 @@
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README for libpng 1.0.3 - January 14, 1999 (shared library 2.1)
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README for libpng 1.0.4 - September 17, 1999 (shared library 2.1)
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See the note about version numbers near the top of png.h
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See INSTALL for instructions on how to install libpng.
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@ -49,7 +49,7 @@ to set different actions based on whether the CRC error occurred in a
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critical or an ancillary chunk.
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The changes made to the library, and bugs fixed are based on discussions
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on the PNG implementation mailing list <png-implement@dworking.wustl.edu>
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on the PNG implementation mailing list <png-implement@ccrc.wustl.edu>
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and not on material submitted to Guy.
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For a detailed description on using libpng, read libpng.txt. For
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@ -98,8 +98,8 @@ fix. Please mention "libpng" somewhere in the subject line. Thanks.
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This release was created and will be supported by myself (of course
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based in a large way on Guy's and Andreas' earlier work), and the PNG group.
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randeg@alumni.rpi.edu
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png-implement@dworkin.wustl.edu
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randeg@alum.rpi.edu
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png-implement@ccrc.wustl.edu
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You can't reach Guy, the original libpng author, at the addresses
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given in previous versions of this document. He and Andreas will read mail
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@ -108,7 +108,7 @@ addressed to the png-implement list, however.
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Please do not send general questions about PNG. Send them to
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the address in the specification (png-group@w3.org). At the same
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time, please do not send libpng questions to that address, send them to me
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or to png-implement@dworkin.wustl.edu. I'll
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or to png-implement@ccrc.wustl.edu. I'll
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get them in the end anyway. If you have a question about something
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in the PNG specification that is related to using libpng, send it
|
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to me. Send me any questions that start with "I was using libpng,
|
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@ -126,8 +126,6 @@ Files in this distribution:
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CHANGES => Description of changes between libpng versions
|
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README => This file
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TODO => Things not implemented in the current library
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ansi2knr.1 => Manual page for ansi2knr
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ansi2knr.c => Converts files to K&R style function declarations
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build.bat => MS-DOS batch file for Borland compiler
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descrip.mms => VMS project file
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example.c => Example code for using libpng functions
|
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@ -158,18 +156,21 @@ Files in this distribution:
|
||||
descrip.mms => VMS makefile for MMS or MMK
|
||||
makefile.std => Generic UNIX makefile
|
||||
makefile.knr => Archaic UNIX Makefile that converts files with ansi2knr
|
||||
(Requires ansi2knr.c from ftp://ftp.cs.wisc.edu/ghost)
|
||||
makefile.dec => DEC Alpha UNIX makefile
|
||||
makefile.hux => HPUX (10.20 and 11.00) makefile
|
||||
makefile.sgi => Silicon Graphics IRIX makefile
|
||||
makefile.sun => Sun makefile
|
||||
makefile.s2x => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0)
|
||||
makefile.lnx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0)
|
||||
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
|
||||
makefile.mip => MIPS makefile
|
||||
makefile.aco => Acorn makefile
|
||||
makefile.ama => Amiga makefile
|
||||
smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
|
||||
(Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
|
||||
makefile.atr => Atari makefile
|
||||
makefile.beo => BEOS makefile for X86
|
||||
makefile.bor => Borland makefile
|
||||
build.bat => MS-DOS batch file for Borland compiler
|
||||
makefile.dj2 => DJGPP 2 makefile
|
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@ -177,16 +178,17 @@ Files in this distribution:
|
||||
makefile.w32 => makefile for Microsoft Visual C++ 4.0 and later
|
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makefile.tc3 => Turbo C 3.0 makefile
|
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makefile.os2 => OS/2 Makefile (gcc and emx, requires pngos2.def)
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makefile.wat => Watcom 10a+ Makefile, 32-bit flat memory model
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pngos2.def => OS/2 module definition file used by makefile.os2
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||||
makefile.wat => Watcom 10a+ Makefile, 32-bit flat memory model
|
||||
makevms.com => VMS build script
|
||||
pngdll.mak => To make a png32bd.dll with Borland C++ 4.5
|
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pngdef.pas => Defines for a png32bd.dll with Borland C++ 4.5
|
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SCOPTIONS.ppc => Used with smakefile.ppc
|
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Good luck, and happy coding.
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|
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-Glenn Randers-Pehrson
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Internet: randeg@alumni.rpi.edu
|
||||
Internet: randeg@alum.rpi.edu
|
||||
Web: http://www.rpi.edu/~randeg/index.html
|
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|
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-Andreas Eric Dilger
|
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2
TODO
2
TODO
@ -10,7 +10,6 @@ Support for application-defined chunk handlers.
|
||||
Improve setjmp/longjmp usage or remove it in favor of returning error codes.
|
||||
High-level API for reading images.
|
||||
Add "grayscale->palette" transformation and "palette->grayscale" detection.
|
||||
Color to gray transformation.
|
||||
Improved dithering.
|
||||
Multi-lingual error and warning message support.
|
||||
Complete sRGB transformation (presently it simply uses gamma=0.45455).
|
||||
@ -22,3 +21,4 @@ Optional palette (sPLT) creation.
|
||||
Histogram creation.
|
||||
Text conversion between different code pages (Latin-1 -> Mac and DOS).
|
||||
Improve API by hiding the info_ptr.
|
||||
Make a no-floating-point version.
|
||||
|
||||
19
Y2KINFO
19
Y2KINFO
@ -6,9 +6,9 @@
|
||||
Since the PNG Development group is an ad-hoc body, we can't make
|
||||
an official declaration.
|
||||
|
||||
This is your unofficial assurance that libpng from version 0.81 and
|
||||
upward are Y2K compliant. It is my belief that earlier versions were
|
||||
also Y2K compliant.
|
||||
This is your unofficial assurance that libpng from version 0.71 and
|
||||
upward through 1.0.4 are Y2K compliant. It is my belief that earlier
|
||||
versions were also Y2K compliant.
|
||||
|
||||
Libpng only has three year fields. One is a 2-byte unsigned integer
|
||||
that will hold years up to 65535. The other two hold the date in text
|
||||
@ -37,15 +37,18 @@
|
||||
clock time, which returns (year - 1900), which we properly convert to
|
||||
the full 4-digit year. There is a possibility that applications using
|
||||
libpng are not passing 4-digit years into the png_convert_to_rfc_1123()
|
||||
function, or incorrectly passing only a 2-digit year instead of
|
||||
"year - 1900" into the png_convert_from_struct_tm() function, but this
|
||||
is not under our control. The libpng documentation has always stated
|
||||
that it works with 4-digit years, and the APIs have been documented as
|
||||
such.
|
||||
function, or that they are incorrectly passing only a 2-digit year
|
||||
instead of "year - 1900" into the png_convert_from_struct_tm() function,
|
||||
but this is not under our control. The libpng documentation has always
|
||||
stated that it works with 4-digit years, and the APIs have been
|
||||
documented as such.
|
||||
|
||||
The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned
|
||||
integer to hold the year, and can hold years as large as 65535.
|
||||
|
||||
zlib, upon which libpng depends, is also Y2K compliant. It contains
|
||||
no date-related code.
|
||||
|
||||
|
||||
Glenn Randers-Pehrson
|
||||
libpng maintainer
|
||||
|
||||
36
ansi2knr.1
36
ansi2knr.1
@ -1,36 +0,0 @@
|
||||
.TH ANSI2KNR 1 "19 Jan 1996"
|
||||
.SH NAME
|
||||
ansi2knr \- convert ANSI C to Kernighan & Ritchie C
|
||||
.SH SYNOPSIS
|
||||
.I ansi2knr
|
||||
[--varargs] input_file [output_file]
|
||||
.SH DESCRIPTION
|
||||
If no output_file is supplied, output goes to stdout.
|
||||
.br
|
||||
There are no error messages.
|
||||
.sp
|
||||
.I ansi2knr
|
||||
recognizes function definitions by seeing a non-keyword identifier at the left
|
||||
margin, followed by a left parenthesis, with a right parenthesis as the last
|
||||
character on the line, and with a left brace as the first token on the
|
||||
following line (ignoring possible intervening comments). It will recognize a
|
||||
multi-line header provided that no intervening line ends with a left or right
|
||||
brace or a semicolon. These algorithms ignore whitespace and comments, except
|
||||
that the function name must be the first thing on the line.
|
||||
.sp
|
||||
The following constructs will confuse it:
|
||||
.br
|
||||
- Any other construct that starts at the left margin and follows the
|
||||
above syntax (such as a macro or function call).
|
||||
.br
|
||||
- Some macros that tinker with the syntax of the function header.
|
||||
.sp
|
||||
The --varargs switch is obsolete, and is recognized only for
|
||||
backwards compatibility. The present version of
|
||||
.I ansi2knr
|
||||
will always attempt to convert a ... argument to va_alist and va_dcl.
|
||||
.SH AUTHOR
|
||||
L. Peter Deutsch <ghost@aladdin.com> wrote the original ansi2knr and
|
||||
continues to maintain the current version; most of the code in the current
|
||||
version is his work. ansi2knr also includes contributions by Francois
|
||||
Pinard <pinard@iro.umontreal.ca> and Jim Avera <jima@netcom.com>.
|
||||
695
ansi2knr.c
695
ansi2knr.c
@ -1,695 +0,0 @@
|
||||
/* ansi2knr.c */
|
||||
|
||||
/* Convert ANSI C function definitions to K&R ("traditional C") syntax
|
||||
Copyright (C) 1989 Aladdin Enterprises. All rights reserved.
|
||||
Copyright (C) 1988 Richard M. Stallman
|
||||
|
||||
ansi2knr is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY. No author or distributor accepts responsibility to anyone for the
|
||||
consequences of using it or for whether it serves any particular purpose or
|
||||
works at all, unless he says so in writing. Refer to the GNU General Public
|
||||
License (the "GPL") for full details.
|
||||
|
||||
Everyone is granted permission to copy, modify and redistribute ansi2knr,
|
||||
but only under the conditions described in the GPL. A copy of this license
|
||||
is supposed to have been given to you along with ansi2knr so you can know
|
||||
your rights and responsibilities. It should be in a file named COPYLEFT.
|
||||
[In the LIBPNG distribution, the GPL appears below, not in a separate file.]
|
||||
Among other things, the copyright notice and this notice must be preserved
|
||||
on all copies.
|
||||
|
||||
We explicitly state here what we believe is already implied by the GPL: if
|
||||
the ansi2knr program is distributed as a separate source file and a
|
||||
separate executable file which are aggregated on a storage medium together
|
||||
with another program, this in itself does not bring the other program under
|
||||
the GPL, nor does the mere fact that such a program or the procedures for
|
||||
constructing it invoke the ansi2knr executable bring any other part of the
|
||||
program under the GPL.
|
||||
*/
|
||||
|
||||
/*
|
||||
---------- Here is the GNU GPL file COPYLEFT, referred to above ----------
|
||||
----- These terms do NOT apply to the LIBPNG software itself; see README ------
|
||||
|
||||
GHOSTSCRIPT GENERAL PUBLIC LICENSE
|
||||
(Clarified 11 Feb 1988)
|
||||
|
||||
Copyright (C) 1988 Richard M. Stallman
|
||||
Everyone is permitted to copy and distribute verbatim copies of this
|
||||
license, but changing it is not allowed. You can also use this wording
|
||||
to make the terms for other programs.
|
||||
|
||||
The license agreements of most software companies keep you at the
|
||||
mercy of those companies. By contrast, our general public license is
|
||||
intended to give everyone the right to share Ghostscript. To make sure
|
||||
that you get the rights we want you to have, we need to make
|
||||
restrictions that forbid anyone to deny you these rights or to ask you
|
||||
to surrender the rights. Hence this license agreement.
|
||||
|
||||
Specifically, we want to make sure that you have the right to give
|
||||
away copies of Ghostscript, that you receive source code or else can get
|
||||
it if you want it, that you can change Ghostscript or use pieces of it
|
||||
in new free programs, and that you know you can do these things.
|
||||
|
||||
To make sure that everyone has such rights, we have to forbid you to
|
||||
deprive anyone else of these rights. For example, if you distribute
|
||||
copies of Ghostscript, you must give the recipients all the rights that
|
||||
you have. You must make sure that they, too, receive or can get the
|
||||
source code. And you must tell them their rights.
|
||||
|
||||
Also, for our own protection, we must make certain that everyone finds
|
||||
out that there is no warranty for Ghostscript. If Ghostscript is
|
||||
modified by someone else and passed on, we want its recipients to know
|
||||
that what they have is not what we distributed, so that any problems
|
||||
introduced by others will not reflect on our reputation.
|
||||
|
||||
Therefore we (Richard M. Stallman and the Free Software Foundation,
|
||||
Inc.) make the following terms which say what you must do to be allowed
|
||||
to distribute or change Ghostscript.
|
||||
|
||||
|
||||
COPYING POLICIES
|
||||
|
||||
1. You may copy and distribute verbatim copies of Ghostscript source
|
||||
code as you receive it, in any medium, provided that you conspicuously
|
||||
and appropriately publish on each copy a valid copyright and license
|
||||
notice "Copyright (C) 1989 Aladdin Enterprises. All rights reserved.
|
||||
Distributed by Free Software Foundation, Inc." (or with whatever year is
|
||||
appropriate); keep intact the notices on all files that refer to this
|
||||
License Agreement and to the absence of any warranty; and give any other
|
||||
recipients of the Ghostscript program a copy of this License Agreement
|
||||
along with the program. You may charge a distribution fee for the
|
||||
physical act of transferring a copy.
|
||||
|
||||
2. You may modify your copy or copies of Ghostscript or any portion of
|
||||
it, and copy and distribute such modifications under the terms of
|
||||
Paragraph 1 above, provided that you also do the following:
|
||||
|
||||
a) cause the modified files to carry prominent notices stating
|
||||
that you changed the files and the date of any change; and
|
||||
|
||||
b) cause the whole of any work that you distribute or publish,
|
||||
that in whole or in part contains or is a derivative of Ghostscript
|
||||
or any part thereof, to be licensed at no charge to all third
|
||||
parties on terms identical to those contained in this License
|
||||
Agreement (except that you may choose to grant more extensive
|
||||
warranty protection to some or all third parties, at your option).
|
||||
|
||||
c) You may charge a distribution fee for the physical act of
|
||||
transferring a copy, and you may at your option offer warranty
|
||||
protection in exchange for a fee.
|
||||
|
||||
Mere aggregation of another unrelated program with this program (or its
|
||||
derivative) on a volume of a storage or distribution medium does not bring
|
||||
the other program under the scope of these terms.
|
||||
|
||||
3. You may copy and distribute Ghostscript (or a portion or derivative
|
||||
of it, under Paragraph 2) in object code or executable form under the
|
||||
terms of Paragraphs 1 and 2 above provided that you also do one of the
|
||||
following:
|
||||
|
||||
a) accompany it with the complete corresponding machine-readable
|
||||
source code, which must be distributed under the terms of
|
||||
Paragraphs 1 and 2 above; or,
|
||||
|
||||
b) accompany it with a written offer, valid for at least three
|
||||
years, to give any third party free (except for a nominal
|
||||
shipping charge) a complete machine-readable copy of the
|
||||
corresponding source code, to be distributed under the terms of
|
||||
Paragraphs 1 and 2 above; or,
|
||||
|
||||
c) accompany it with the information you received as to where the
|
||||
corresponding source code may be obtained. (This alternative is
|
||||
allowed only for noncommercial distribution and only if you
|
||||
received the program in object code or executable form alone.)
|
||||
|
||||
For an executable file, complete source code means all the source code for
|
||||
all modules it contains; but, as a special exception, it need not include
|
||||
source code for modules which are standard libraries that accompany the
|
||||
operating system on which the executable file runs.
|
||||
|
||||
4. You may not copy, sublicense, distribute or transfer Ghostscript
|
||||
except as expressly provided under this License Agreement. Any attempt
|
||||
otherwise to copy, sublicense, distribute or transfer Ghostscript is
|
||||
void and your rights to use the program under this License agreement
|
||||
shall be automatically terminated. However, parties who have received
|
||||
computer software programs from you with this License Agreement will not
|
||||
have their licenses terminated so long as such parties remain in full
|
||||
compliance.
|
||||
|
||||
5. If you wish to incorporate parts of Ghostscript into other free
|
||||
programs whose distribution conditions are different, write to the Free
|
||||
Software Foundation at 675 Mass Ave, Cambridge, MA 02139. We have not
|
||||
yet worked out a simple rule that can be stated here, but we will often
|
||||
permit this. We will be guided by the two goals of preserving the free
|
||||
status of all derivatives of our free software and of promoting the
|
||||
sharing and reuse of software.
|
||||
|
||||
Your comments and suggestions about our licensing policies and our
|
||||
software are welcome! Please contact the Free Software Foundation,
|
||||
Inc., 675 Mass Ave, Cambridge, MA 02139, or call (617) 876-3296.
|
||||
|
||||
NO WARRANTY
|
||||
|
||||
BECAUSE GHOSTSCRIPT IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY
|
||||
NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW. EXCEPT
|
||||
WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC, RICHARD
|
||||
M. STALLMAN, ALADDIN ENTERPRISES, L. PETER DEUTSCH, AND/OR OTHER PARTIES
|
||||
PROVIDE GHOSTSCRIPT "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
|
||||
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
|
||||
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF GHOSTSCRIPT IS WITH
|
||||
YOU. SHOULD GHOSTSCRIPT PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
|
||||
NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL RICHARD M.
|
||||
STALLMAN, THE FREE SOFTWARE FOUNDATION, INC., L. PETER DEUTSCH, ALADDIN
|
||||
ENTERPRISES, AND/OR ANY OTHER PARTY WHO MAY MODIFY AND REDISTRIBUTE
|
||||
GHOSTSCRIPT AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING
|
||||
ANY LOST PROFITS, LOST MONIES, OR OTHER SPECIAL, INCIDENTAL OR
|
||||
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
|
||||
(INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
|
||||
INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR A FAILURE OF THE
|
||||
PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS) GHOSTSCRIPT, EVEN IF YOU
|
||||
HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM
|
||||
BY ANY OTHER PARTY.
|
||||
|
||||
-------------------- End of file COPYLEFT ------------------------------
|
||||
*/
|
||||
|
||||
/*
|
||||
* Usage:
|
||||
ansi2knr input_file [output_file]
|
||||
* If no output_file is supplied, output goes to stdout.
|
||||
* There are no error messages.
|
||||
*
|
||||
* ansi2knr recognizes function definitions by seeing a non-keyword
|
||||
* identifier at the left margin, followed by a left parenthesis,
|
||||
* with a right parenthesis as the last character on the line,
|
||||
* and with a left brace as the first token on the following line
|
||||
* (ignoring possible intervening comments).
|
||||
* It will recognize a multi-line header provided that no intervening
|
||||
* line ends with a left or right brace or a semicolon.
|
||||
* These algorithms ignore whitespace and comments, except that
|
||||
* the function name must be the first thing on the line.
|
||||
* The following constructs will confuse it:
|
||||
* - Any other construct that starts at the left margin and
|
||||
* follows the above syntax (such as a macro or function call).
|
||||
* - Some macros that tinker with the syntax of the function header.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The original and principal author of ansi2knr is L. Peter Deutsch
|
||||
* <ghost@aladdin.com>. Other authors are noted in the change history
|
||||
* that follows (in reverse chronological order):
|
||||
lpd 96-01-21 added code to cope with not HAVE_CONFIG_H and with
|
||||
compilers that don't understand void, as suggested by
|
||||
Tom Lane
|
||||
lpd 96-01-15 changed to require that the first non-comment token
|
||||
on the line following a function header be a left brace,
|
||||
to reduce sensitivity to macros, as suggested by Tom Lane
|
||||
<tgl@sss.pgh.pa.us>
|
||||
lpd 95-06-22 removed #ifndefs whose sole purpose was to define
|
||||
undefined preprocessor symbols as 0; changed all #ifdefs
|
||||
for configuration symbols to #ifs
|
||||
lpd 95-04-05 changed copyright notice to make it clear that
|
||||
including ansi2knr in a program does not bring the entire
|
||||
program under the GPL
|
||||
lpd 94-12-18 added conditionals for systems where ctype macros
|
||||
don't handle 8-bit characters properly, suggested by
|
||||
Francois Pinard <pinard@iro.umontreal.ca>;
|
||||
removed --varargs switch (this is now the default)
|
||||
lpd 94-10-10 removed CONFIG_BROKETS conditional
|
||||
lpd 94-07-16 added some conditionals to help GNU `configure',
|
||||
suggested by Francois Pinard <pinard@iro.umontreal.ca>;
|
||||
properly erase prototype args in function parameters,
|
||||
contributed by Jim Avera <jima@netcom.com>;
|
||||
correct error in writeblanks (it shouldn't erase EOLs)
|
||||
lpd 89-xx-xx original version
|
||||
*/
|
||||
|
||||
/* Most of the conditionals here are to make ansi2knr work with */
|
||||
/* or without the GNU configure machinery. */
|
||||
|
||||
#if HAVE_CONFIG_H
|
||||
# include <config.h>
|
||||
#endif
|
||||
|
||||
#include <stdio.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#if HAVE_CONFIG_H
|
||||
|
||||
/*
|
||||
For properly autoconfiguring ansi2knr, use AC_CONFIG_HEADER(config.h).
|
||||
This will define HAVE_CONFIG_H and so, activate the following lines.
|
||||
*/
|
||||
|
||||
# if STDC_HEADERS || HAVE_STRING_H
|
||||
# include <string.h>
|
||||
# else
|
||||
# include <strings.h>
|
||||
# endif
|
||||
|
||||
#else /* not HAVE_CONFIG_H */
|
||||
|
||||
/* Otherwise do it the hard way */
|
||||
|
||||
# ifdef BSD
|
||||
# include <strings.h>
|
||||
# else
|
||||
# ifdef VMS
|
||||
extern int strlen(), strncmp();
|
||||
# else
|
||||
# include <string.h>
|
||||
# endif
|
||||
# endif
|
||||
|
||||
#endif /* not HAVE_CONFIG_H */
|
||||
|
||||
#if STDC_HEADERS
|
||||
# include <stdlib.h>
|
||||
#else
|
||||
/*
|
||||
malloc and free should be declared in stdlib.h,
|
||||
but if you've got a K&R compiler, they probably aren't.
|
||||
*/
|
||||
# ifdef MSDOS
|
||||
# include <malloc.h>
|
||||
# else
|
||||
# ifdef VMS
|
||||
extern char *malloc();
|
||||
extern void free();
|
||||
# else
|
||||
extern char *malloc();
|
||||
extern int free();
|
||||
# endif
|
||||
# endif
|
||||
|
||||
#endif
|
||||
|
||||
/*
|
||||
* The ctype macros don't always handle 8-bit characters correctly.
|
||||
* Compensate for this here.
|
||||
*/
|
||||
#ifdef isascii
|
||||
# undef HAVE_ISASCII /* just in case */
|
||||
# define HAVE_ISASCII 1
|
||||
#else
|
||||
#endif
|
||||
#if STDC_HEADERS || !HAVE_ISASCII
|
||||
# define is_ascii(c) 1
|
||||
#else
|
||||
# define is_ascii(c) isascii(c)
|
||||
#endif
|
||||
|
||||
#define is_space(c) (is_ascii(c) && isspace(c))
|
||||
#define is_alpha(c) (is_ascii(c) && isalpha(c))
|
||||
#define is_alnum(c) (is_ascii(c) && isalnum(c))
|
||||
|
||||
/* Scanning macros */
|
||||
#define isidchar(ch) (is_alnum(ch) || (ch) == '_')
|
||||
#define isidfirstchar(ch) (is_alpha(ch) || (ch) == '_')
|
||||
|
||||
/* Forward references */
|
||||
char *skipspace();
|
||||
int writeblanks();
|
||||
int test1();
|
||||
int convert1();
|
||||
|
||||
/* The main program */
|
||||
int
|
||||
main(argc, argv)
|
||||
int argc;
|
||||
char *argv[];
|
||||
{ FILE *in, *out;
|
||||
#define bufsize 5000 /* arbitrary size */
|
||||
char *buf;
|
||||
char *line;
|
||||
char *more;
|
||||
/*
|
||||
* In previous versions, ansi2knr recognized a --varargs switch.
|
||||
* If this switch was supplied, ansi2knr would attempt to convert
|
||||
* a ... argument to va_alist and va_dcl; if this switch was not
|
||||
* supplied, ansi2knr would simply drop any such arguments.
|
||||
* Now, ansi2knr always does this conversion, and we only
|
||||
* check for this switch for backward compatibility.
|
||||
*/
|
||||
int convert_varargs = 1;
|
||||
|
||||
if ( argc > 1 && argv[1][0] == '-' )
|
||||
{ if ( !strcmp(argv[1], "--varargs") )
|
||||
{ convert_varargs = 1;
|
||||
argc--;
|
||||
argv++;
|
||||
}
|
||||
else
|
||||
{ fprintf(stderr, "Unrecognized switch: %s\n", argv[1]);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
switch ( argc )
|
||||
{
|
||||
default:
|
||||
printf("Usage: ansi2knr input_file [output_file]\n");
|
||||
exit(0);
|
||||
case 2:
|
||||
out = stdout;
|
||||
break;
|
||||
case 3:
|
||||
out = fopen(argv[2], "w");
|
||||
if ( out == NULL )
|
||||
{ fprintf(stderr, "Cannot open output file %s\n", argv[2]);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
in = fopen(argv[1], "r");
|
||||
if ( in == NULL )
|
||||
{ fprintf(stderr, "Cannot open input file %s\n", argv[1]);
|
||||
exit(1);
|
||||
}
|
||||
fprintf(out, "#line 1 \"%s\"\n", argv[1]);
|
||||
buf = malloc(bufsize);
|
||||
line = buf;
|
||||
while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL )
|
||||
{
|
||||
test: line += strlen(line);
|
||||
switch ( test1(buf) )
|
||||
{
|
||||
case 2: /* a function header */
|
||||
convert1(buf, out, 1, convert_varargs);
|
||||
break;
|
||||
case 1: /* a function */
|
||||
/* Check for a { at the start of the next line. */
|
||||
more = ++line;
|
||||
f: if ( line >= buf + (bufsize - 1) ) /* overflow check */
|
||||
goto wl;
|
||||
if ( fgets(line, (unsigned)(buf + bufsize - line), in) == NULL )
|
||||
goto wl;
|
||||
switch ( *skipspace(more, 1) )
|
||||
{
|
||||
case '{':
|
||||
/* Definitely a function header. */
|
||||
convert1(buf, out, 0, convert_varargs);
|
||||
fputs(more, out);
|
||||
break;
|
||||
case 0:
|
||||
/* The next line was blank or a comment: */
|
||||
/* keep scanning for a non-comment. */
|
||||
line += strlen(line);
|
||||
goto f;
|
||||
default:
|
||||
/* buf isn't a function header, but */
|
||||
/* more might be. */
|
||||
fputs(buf, out);
|
||||
strcpy(buf, more);
|
||||
line = buf;
|
||||
goto test;
|
||||
}
|
||||
break;
|
||||
case -1: /* maybe the start of a function */
|
||||
if ( line != buf + (bufsize - 1) ) /* overflow check */
|
||||
continue;
|
||||
/* falls through */
|
||||
default: /* not a function */
|
||||
wl: fputs(buf, out);
|
||||
break;
|
||||
}
|
||||
line = buf;
|
||||
}
|
||||
if ( line != buf )
|
||||
fputs(buf, out);
|
||||
free(buf);
|
||||
fclose(out);
|
||||
fclose(in);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Skip over space and comments, in either direction. */
|
||||
char *
|
||||
skipspace(p, dir)
|
||||
register char *p;
|
||||
register int dir; /* 1 for forward, -1 for backward */
|
||||
{ for ( ; ; )
|
||||
{ while ( is_space(*p) )
|
||||
p += dir;
|
||||
if ( !(*p == '/' && p[dir] == '*') )
|
||||
break;
|
||||
p += dir; p += dir;
|
||||
while ( !(*p == '*' && p[dir] == '/') )
|
||||
{ if ( *p == 0 )
|
||||
return p; /* multi-line comment?? */
|
||||
p += dir;
|
||||
}
|
||||
p += dir; p += dir;
|
||||
}
|
||||
return p;
|
||||
}
|
||||
|
||||
/*
|
||||
* Write blanks over part of a string.
|
||||
* Don't overwrite end-of-line characters.
|
||||
*/
|
||||
int
|
||||
writeblanks(start, end)
|
||||
char *start;
|
||||
char *end;
|
||||
{ char *p;
|
||||
for ( p = start; p < end; p++ )
|
||||
if ( *p != '\r' && *p != '\n' )
|
||||
*p = ' ';
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Test whether the string in buf is a function definition.
|
||||
* The string may contain and/or end with a newline.
|
||||
* Return as follows:
|
||||
* 0 - definitely not a function definition;
|
||||
* 1 - definitely a function definition;
|
||||
* 2 - definitely a function prototype (NOT USED);
|
||||
* -1 - may be the beginning of a function definition,
|
||||
* append another line and look again.
|
||||
* The reason we don't attempt to convert function prototypes is that
|
||||
* Ghostscript's declaration-generating macros look too much like
|
||||
* prototypes, and confuse the algorithms.
|
||||
*/
|
||||
int
|
||||
test1(buf)
|
||||
char *buf;
|
||||
{ register char *p = buf;
|
||||
char *bend;
|
||||
char *endfn;
|
||||
int contin;
|
||||
|
||||
if ( !isidfirstchar(*p) )
|
||||
return 0; /* no name at left margin */
|
||||
bend = skipspace(buf + strlen(buf) - 1, -1);
|
||||
switch ( *bend )
|
||||
{
|
||||
case ';': contin = 0 /*2*/; break;
|
||||
case ')': contin = 1; break;
|
||||
case '{': return 0; /* not a function */
|
||||
case '}': return 0; /* not a function */
|
||||
default: contin = -1;
|
||||
}
|
||||
while ( isidchar(*p) )
|
||||
p++;
|
||||
endfn = p;
|
||||
p = skipspace(p, 1);
|
||||
if ( *p++ != '(' )
|
||||
return 0; /* not a function */
|
||||
p = skipspace(p, 1);
|
||||
if ( *p == ')' )
|
||||
return 0; /* no parameters */
|
||||
/* Check that the apparent function name isn't a keyword. */
|
||||
/* We only need to check for keywords that could be followed */
|
||||
/* by a left parenthesis (which, unfortunately, is most of them). */
|
||||
{ static char *words[] =
|
||||
{ "asm", "auto", "case", "char", "const", "double",
|
||||
"extern", "float", "for", "if", "int", "long",
|
||||
"register", "return", "short", "signed", "sizeof",
|
||||
"static", "switch", "typedef", "unsigned",
|
||||
"void", "volatile", "while", 0
|
||||
};
|
||||
char **key = words;
|
||||
char *kp;
|
||||
int len = endfn - buf;
|
||||
|
||||
while ( (kp = *key) != 0 )
|
||||
{ if ( strlen(kp) == len && !strncmp(kp, buf, len) )
|
||||
return 0; /* name is a keyword */
|
||||
key++;
|
||||
}
|
||||
}
|
||||
return contin;
|
||||
}
|
||||
|
||||
/* Convert a recognized function definition or header to K&R syntax. */
|
||||
int
|
||||
convert1(buf, out, header, convert_varargs)
|
||||
char *buf;
|
||||
FILE *out;
|
||||
int header; /* Boolean */
|
||||
int convert_varargs; /* Boolean */
|
||||
{ char *endfn;
|
||||
register char *p;
|
||||
char **breaks;
|
||||
unsigned num_breaks = 2; /* for testing */
|
||||
char **btop;
|
||||
char **bp;
|
||||
char **ap;
|
||||
char *vararg = 0;
|
||||
|
||||
/* Pre-ANSI implementations don't agree on whether strchr */
|
||||
/* is called strchr or index, so we open-code it here. */
|
||||
for ( endfn = buf; *(endfn++) != '('; )
|
||||
;
|
||||
top: p = endfn;
|
||||
breaks = (char **)malloc(sizeof(char *) * num_breaks * 2);
|
||||
if ( breaks == 0 )
|
||||
{ /* Couldn't allocate break table, give up */
|
||||
fprintf(stderr, "Unable to allocate break table!\n");
|
||||
fputs(buf, out);
|
||||
return -1;
|
||||
}
|
||||
btop = breaks + num_breaks * 2 - 2;
|
||||
bp = breaks;
|
||||
/* Parse the argument list */
|
||||
do
|
||||
{ int level = 0;
|
||||
char *lp = NULL;
|
||||
char *rp;
|
||||
char *end = NULL;
|
||||
|
||||
if ( bp >= btop )
|
||||
{ /* Filled up break table. */
|
||||
/* Allocate a bigger one and start over. */
|
||||
free((char *)breaks);
|
||||
num_breaks <<= 1;
|
||||
goto top;
|
||||
}
|
||||
*bp++ = p;
|
||||
/* Find the end of the argument */
|
||||
for ( ; end == NULL; p++ )
|
||||
{ switch(*p)
|
||||
{
|
||||
case ',':
|
||||
if ( !level ) end = p;
|
||||
break;
|
||||
case '(':
|
||||
if ( !level ) lp = p;
|
||||
level++;
|
||||
break;
|
||||
case ')':
|
||||
if ( --level < 0 ) end = p;
|
||||
else rp = p;
|
||||
break;
|
||||
case '/':
|
||||
p = skipspace(p, 1) - 1;
|
||||
break;
|
||||
default:
|
||||
;
|
||||
}
|
||||
}
|
||||
/* Erase any embedded prototype parameters. */
|
||||
if ( lp )
|
||||
writeblanks(lp + 1, rp);
|
||||
p--; /* back up over terminator */
|
||||
/* Find the name being declared. */
|
||||
/* This is complicated because of procedure and */
|
||||
/* array modifiers. */
|
||||
for ( ; ; )
|
||||
{ p = skipspace(p - 1, -1);
|
||||
switch ( *p )
|
||||
{
|
||||
case ']': /* skip array dimension(s) */
|
||||
case ')': /* skip procedure args OR name */
|
||||
{ int level = 1;
|
||||
while ( level )
|
||||
switch ( *--p )
|
||||
{
|
||||
case ']': case ')': level++; break;
|
||||
case '[': case '(': level--; break;
|
||||
case '/': p = skipspace(p, -1) + 1; break;
|
||||
default: ;
|
||||
}
|
||||
}
|
||||
if ( *p == '(' && *skipspace(p + 1, 1) == '*' )
|
||||
{ /* We found the name being declared */
|
||||
while ( !isidfirstchar(*p) )
|
||||
p = skipspace(p, 1) + 1;
|
||||
goto found;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
goto found;
|
||||
}
|
||||
}
|
||||
found: if ( *p == '.' && p[-1] == '.' && p[-2] == '.' )
|
||||
{ if ( convert_varargs )
|
||||
{ *bp++ = "va_alist";
|
||||
vararg = p-2;
|
||||
}
|
||||
else
|
||||
{ p++;
|
||||
if ( bp == breaks + 1 ) /* sole argument */
|
||||
writeblanks(breaks[0], p);
|
||||
else
|
||||
writeblanks(bp[-1] - 1, p);
|
||||
bp--;
|
||||
}
|
||||
}
|
||||
else
|
||||
{ while ( isidchar(*p) ) p--;
|
||||
*bp++ = p+1;
|
||||
}
|
||||
p = end;
|
||||
}
|
||||
while ( *p++ == ',' );
|
||||
*bp = p;
|
||||
/* Make a special check for 'void' arglist */
|
||||
if ( bp == breaks+2 )
|
||||
{ p = skipspace(breaks[0], 1);
|
||||
if ( !strncmp(p, "void", 4) )
|
||||
{ p = skipspace(p+4, 1);
|
||||
if ( p == breaks[2] - 1 )
|
||||
{ bp = breaks; /* yup, pretend arglist is empty */
|
||||
writeblanks(breaks[0], p + 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
/* Put out the function name and left parenthesis. */
|
||||
p = buf;
|
||||
while ( p != endfn ) putc(*p, out), p++;
|
||||
/* Put out the declaration. */
|
||||
if ( header )
|
||||
{ fputs(");", out);
|
||||
for ( p = breaks[0]; *p; p++ )
|
||||
if ( *p == '\r' || *p == '\n' )
|
||||
putc(*p, out);
|
||||
}
|
||||
else
|
||||
{ for ( ap = breaks+1; ap < bp; ap += 2 )
|
||||
{ p = *ap;
|
||||
while ( isidchar(*p) )
|
||||
putc(*p, out), p++;
|
||||
if ( ap < bp - 1 )
|
||||
fputs(", ", out);
|
||||
}
|
||||
fputs(") ", out);
|
||||
/* Put out the argument declarations */
|
||||
for ( ap = breaks+2; ap <= bp; ap += 2 )
|
||||
(*ap)[-1] = ';';
|
||||
if ( vararg != 0 )
|
||||
{ *vararg = 0;
|
||||
fputs(breaks[0], out); /* any prior args */
|
||||
fputs("va_dcl", out); /* the final arg */
|
||||
fputs(bp[0], out);
|
||||
}
|
||||
else
|
||||
fputs(breaks[0], out);
|
||||
}
|
||||
free((char *)breaks);
|
||||
return 0;
|
||||
}
|
||||
@ -151,7 +151,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
|
||||
/* tell libpng to strip 16 bit/color files down to 8 bits/color */
|
||||
png_set_strip_16(png_ptr);
|
||||
|
||||
/* Strip alpha bytes from the input data without combining with th
|
||||
/* Strip alpha bytes from the input data without combining with the
|
||||
* background (not recommended).
|
||||
*/
|
||||
png_set_strip_alpha(png_ptr);
|
||||
|
||||
101
libpng.txt
101
libpng.txt
@ -1,8 +1,8 @@
|
||||
libpng.txt - A description on how to use and modify libpng
|
||||
|
||||
libpng version 1.0.3 - January 14, 1999
|
||||
libpng version 1.0.4 - September 17, 1999
|
||||
Updated and distributed by Glenn Randers-Pehrson
|
||||
<randeg@alumni.rpi.edu>
|
||||
<randeg@alum.rpi.edu>
|
||||
Copyright (c) 1998, 1999 Glenn Randers-Pehrson
|
||||
For conditions of distribution and use, see copyright
|
||||
notice in png.h.
|
||||
@ -22,6 +22,7 @@ libpng.txt - A description on how to use and modify libpng
|
||||
Copyright (c) 1995 Frank J. T. Wojcik
|
||||
December 18, 1995 && January 20, 1996
|
||||
|
||||
*
|
||||
I. Introduction
|
||||
|
||||
This file describes how to use and modify the PNG reference library
|
||||
@ -35,11 +36,17 @@ INSTALL file for instructions on how to install libpng.
|
||||
|
||||
Libpng was written as a companion to the PNG specification, as a way
|
||||
of reducing the amount of time and effort it takes to support the PNG
|
||||
file format in application programs. The PNG specification is available
|
||||
file format in application programs.
|
||||
|
||||
The PNG-1.2 specification is available at <http://www.cdrom.com/png>.
|
||||
|
||||
The PNG-1.0 specification is available
|
||||
as RFC 2083 <ftp://ftp.uu.net/graphics/png/documents/> and as a
|
||||
W3C Recommendation <http://www.w3.org/TR/REC.png.html>. Some
|
||||
additional chunks are described in the special-purpose public chunks
|
||||
documents at <ftp://ftp.uu.net/graphics/png/documents/>. Other information
|
||||
documents at <ftp://ftp.uu.net/graphics/png/documents/>.
|
||||
|
||||
Other information
|
||||
about PNG, and the latest version of libpng, can be found at the PNG home
|
||||
page, <http://www.cdrom.com/pub/png/>.
|
||||
|
||||
@ -261,6 +268,21 @@ You must supply the function
|
||||
See pngtest.c for a working example. Your function will be called
|
||||
after all of the other transformations have been processed.
|
||||
|
||||
You can also set up a pointer to a user structure for use by your
|
||||
callback function, and you can inform libpng that your transform
|
||||
function will change the number of channels or bit depth with the
|
||||
function
|
||||
|
||||
png_set_user_transform_info(png_ptr, user_ptr,
|
||||
user_depth, user_channels);
|
||||
|
||||
|
||||
You can retrieve the pointer via the function
|
||||
png_get_user_transform_ptr(). For example:
|
||||
|
||||
voidp read_user_transform_ptr =
|
||||
png_get_user_transform_ptr(png_ptr);
|
||||
|
||||
You are now ready to read all the file information up to the actual
|
||||
image data. You do this with a call to png_read_info().
|
||||
|
||||
@ -506,13 +528,18 @@ grayscale images with bit depths of 2 or 4 or if there is a multiple-image
|
||||
viewing application that wishes to treat all images in the same way.
|
||||
|
||||
if (color_type == PNG_COLOR_TYPE_PALETTE &&
|
||||
bit_depth <= 8) png_set_expand(png_ptr);
|
||||
bit_depth <= 8) png_set_palette_to_rgb(png_ptr);
|
||||
|
||||
if (color_type == PNG_COLOR_TYPE_GRAY &&
|
||||
bit_depth < 8) png_set_expand(png_ptr);
|
||||
bit_depth < 8) png_set_gray_1_2_4_to_8(png_ptr);
|
||||
|
||||
if (png_get_valid(png_ptr, info_ptr,
|
||||
PNG_INFO_tRNS)) png_set_expand(png_ptr);
|
||||
PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr);
|
||||
|
||||
These three functions are actually aliases for png_set_expand(), added
|
||||
in libpng version 1.0.4, with the function names expanded to improve code
|
||||
readability. In some future version they may actually do different
|
||||
things.
|
||||
|
||||
PNG can have files with 16 bits per channel. If you only can handle
|
||||
8 bits per channel, this will strip the pixels down to 8 bit.
|
||||
@ -599,7 +626,7 @@ and blue channels, leaving the green channel in the gray position.
|
||||
if (color_type == PNG_COLOR_TYPE_RGB ||
|
||||
color_type == PNG_COLOR_TYPE_RGB_ALPHA)
|
||||
png_set_rgb_to_gray(png_ptr, error_action,
|
||||
float red_weight, float green_weight);
|
||||
double red_weight, double green_weight);
|
||||
|
||||
error_action = 1: silently do the conversion
|
||||
error_action = 2: issue a warning if the original
|
||||
@ -648,7 +675,8 @@ which can be expressed with integers as
|
||||
The calculation is done in a linear colorspace, if the image gamma
|
||||
is known.
|
||||
|
||||
If you have a grayscale and you are using png_set_expand() to change to
|
||||
If you have a grayscale and you are using png_set_expand_depth() or
|
||||
png_set_expand() to change to
|
||||
a higher bit-depth, you must either supply the background color as a gray
|
||||
value at the original file bit-depth (need_expand = 1) or else supply the
|
||||
background color as an RGB triplet at the final, expanded bit depth
|
||||
@ -681,6 +709,8 @@ the amount of additional gamma correction needed to compensate for
|
||||
a (viewing_gamma=1.25) environment. In a dim or brightly lit room, no
|
||||
compensation other than the display_gamma is needed (viewing_gamma=1.0).
|
||||
|
||||
double gamma, screen_gamma;
|
||||
|
||||
if (/* We have a user-defined screen
|
||||
gamma value */)
|
||||
{
|
||||
@ -691,7 +721,7 @@ compensation other than the display_gamma is needed (viewing_gamma=1.0).
|
||||
else if ((gamma_str = getenv("SCREEN_GAMMA"))
|
||||
!= NULL)
|
||||
{
|
||||
screen_gamma = atof(gamma_str);
|
||||
screen_gamma = (double)atof(gamma_str);
|
||||
}
|
||||
/* If we don't have another value */
|
||||
else
|
||||
@ -831,7 +861,7 @@ row_pointers:
|
||||
png_read_row(png_ptr, &row_pointers, NULL);
|
||||
|
||||
If the file is interlaced (info_ptr->interlace_type != 0), things get
|
||||
somewhat harder. The only current (PNG Specification version 1.0)
|
||||
somewhat harder. The only current (PNG Specification version 1.2)
|
||||
interlacing type for PNG is (interlace_type == PNG_INTERLACE_ADAM7)
|
||||
is a somewhat complicated 2D interlace scheme, known as Adam7, that
|
||||
breaks down an image into seven smaller images of varying size, based
|
||||
@ -1194,7 +1224,7 @@ have no special needs in this area, let the library do what it wants by
|
||||
not calling this function at all, as it has been tuned to deliver a good
|
||||
speed/compression ratio. The second parameter to png_set_filter() is
|
||||
the filter method, for which the only valid value is '0' (as of the
|
||||
October 1996 PNG specification, version 1.0). The third parameter is a
|
||||
July 1999 PNG specification, version 1.2). The third parameter is a
|
||||
flag that indicates which filter type(s) are to be tested for each
|
||||
scanline. See the Compression Library for details on the specific filter
|
||||
types.
|
||||
@ -1226,7 +1256,7 @@ data. See the Compression Library for details on the compression levels.
|
||||
You now need to fill in the png_info structure with all the data you
|
||||
wish to write before the actual image. Note that the only thing you
|
||||
are allowed to write after the image is the text chunks and the time
|
||||
chunk (as of PNG Specification 1.0, anyway). See png_write_end() and
|
||||
chunk (as of PNG Specification 1.2, anyway). See png_write_end() and
|
||||
the latest PNG specification for more information on that. If you
|
||||
wish to write them before the image, fill them in now, and flag that
|
||||
data as being valid. If you want to wait until after the data, don't
|
||||
@ -1555,7 +1585,21 @@ You must supply the function
|
||||
row_info, png_bytep data)
|
||||
|
||||
See pngtest.c for a working example. Your function will be called
|
||||
before any of the other transformations have been processed.
|
||||
before any of the other transformations are processed.
|
||||
|
||||
You can also set up a pointer to a user structure for use by your
|
||||
callback function.
|
||||
|
||||
png_set_user_transform_info(png_ptr, user_ptr, 0, 0);
|
||||
|
||||
The user_channels and user_depth parameters of this function are ignored
|
||||
when writing; you can set them to zero as shown.
|
||||
|
||||
You can retrieve the pointer via the function
|
||||
png_get_user_transform_ptr(). For example:
|
||||
|
||||
voidp write_user_transform_ptr =
|
||||
png_get_user_transform_ptr(png_ptr);
|
||||
|
||||
It is possible to have libpng flush any pending output, either manually,
|
||||
or automatically after a certain number of lines have been written. To
|
||||
@ -1612,8 +1656,8 @@ row_pointers:
|
||||
png_write_row(png_ptr, &row_pointer);
|
||||
|
||||
When the file is interlaced, things can get a good deal more
|
||||
complicated. The only currently (as of February 1998 -- PNG Specification
|
||||
version 1.0, dated October 1996) defined interlacing scheme for PNG files
|
||||
complicated. The only currently (as of August 1999 -- PNG Specification
|
||||
version 1.2, dated July 1999) defined interlacing scheme for PNG files
|
||||
is the "Adam7" interlace scheme, that breaks down an
|
||||
image into seven smaller images of varying size. libpng will build
|
||||
these images for you, or you can do them yourself. If you want to
|
||||
@ -1658,7 +1702,6 @@ palette, or histogram, before the call to png_destroy_write_struct();
|
||||
|
||||
For a more compact example of writing a PNG image, see the file example.c.
|
||||
|
||||
|
||||
V. Modifying/Customizing libpng:
|
||||
|
||||
There are two issues here. The first is changing how libpng does
|
||||
@ -1685,7 +1728,8 @@ which currently just call fread() and fwrite(). The FILE * is stored in
|
||||
png_struct and is initialized via png_init_io(). If you wish to change
|
||||
the method of I/O, the library supplies callbacks that you can set
|
||||
through the function png_set_read_fn() and png_set_write_fn() at run
|
||||
time, instead of calling the png_init_io() function. These functions
|
||||
time, instead of calling the png_init_io() function.
|
||||
These functions
|
||||
also provide a void pointer that can be retrieved via the function
|
||||
png_get_io_ptr(). For example:
|
||||
|
||||
@ -1852,7 +1896,7 @@ images (with and without alpha), but not for paletted images nor
|
||||
for any images with bit depths less than 8 bits/pixel.
|
||||
|
||||
The 'method' parameter sets the main filtering method, which is
|
||||
currently only '0' in the PNG 1.0 specification. The 'filters'
|
||||
currently only '0' in the PNG 1.2 specification. The 'filters'
|
||||
parameter sets which filter(s), if any, should be used for each
|
||||
scanline. Possible values are PNG_ALL_FILTERS and PNG_NO_FILTERS
|
||||
to turn filtering on and off, respectively.
|
||||
@ -2021,9 +2065,9 @@ January 13, 1999
|
||||
Since the PNG Development group is an ad-hoc body, we can't make
|
||||
an official declaration.
|
||||
|
||||
This is your unofficial assurance that libpng from version 0.81 and
|
||||
upward are Y2K compliant. It is my belief that earlier versions were
|
||||
also Y2K compliant.
|
||||
This is your unofficial assurance that libpng from version 0.71 and
|
||||
upward through 1.0.4 are Y2K compliant. It is my belief that earlier
|
||||
versions were also Y2K compliant.
|
||||
|
||||
Libpng only has three year fields. One is a 2-byte unsigned integer that
|
||||
will hold years up to 65535. The other two hold the date in text
|
||||
@ -2052,15 +2096,18 @@ png_convert_from_time_t() function calls gmtime() to convert from system
|
||||
clock time, which returns (year - 1900), which we properly convert to
|
||||
the full 4-digit year. There is a possibility that applications using
|
||||
libpng are not passing 4-digit years into the png_convert_to_rfc_1123()
|
||||
function, or incorrectly passing only a 2-digit year instead of
|
||||
"year - 1900" into the png_convert_from_struct_tm() function, but this
|
||||
is not under our control. The libpng documentation has always stated
|
||||
that it works with 4-digit years, and the APIs have been documented as
|
||||
such.
|
||||
function, or that they are incorrectly passing only a 2-digit year
|
||||
instead of "year - 1900" into the png_convert_from_struct_tm() function,
|
||||
but this is not under our control. The libpng documentation has always
|
||||
stated that it works with 4-digit years, and the APIs have been
|
||||
documented as such.
|
||||
|
||||
The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned
|
||||
integer to hold the year, and can hold years as large as 65535.
|
||||
|
||||
zlib, upon which libpng depends, is also Y2K compliant. It contains
|
||||
no date-related code.
|
||||
|
||||
|
||||
Glenn Randers-Pehrson
|
||||
libpng maintainer
|
||||
|
||||
580
libpngpf.3
580
libpngpf.3
@ -3,337 +3,495 @@
|
||||
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.3 - January 14, 1999
|
||||
(private functions)
|
||||
.SH SYNOPSIS
|
||||
#include <png.h>
|
||||
\fB#include <png.h>\fP
|
||||
|
||||
void png_build_gamma_table (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_build_grayscale_palette (int bit_depth, png_colorp
|
||||
palette);
|
||||
\fBvoid png_build_gamma_table (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
void png_calculate_crc (png_structp png_ptr, png_bytep ptr,
|
||||
png_size_t length);
|
||||
void png_check_chunk_name (png_structp png_ptr, png_bytep
|
||||
chunk_name);
|
||||
\fI\fB
|
||||
|
||||
png_size_t png_check_keyword (png_structp png_ptr, png_charp
|
||||
key, png_charpp new_key);
|
||||
\fBvoid png_build_grayscale_palette (int \fP\fIbit_depth\fP\fB, png_colorp \fIpalette\fP\fB);\fP
|
||||
|
||||
void png_combine_row (png_structp png_ptr, png_bytep row, int
|
||||
mask);
|
||||
\fI\fB
|
||||
|
||||
void png_correct_palette (png_structp png_ptr, png_colorp
|
||||
palette, int num_palette);
|
||||
\fBvoid png_calculate_crc (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIptr\fP\fB, png_size_t \fIlength\fP\fB);\fP
|
||||
|
||||
int png_crc_error (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
int png_crc_finish (png_structp png_ptr, png_uint_32 skip);
|
||||
\fBvoid png_check_chunk_name (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIchunk_name\fP\fB);\fP
|
||||
|
||||
void png_crc_read (png_structp png_ptr, png_bytep buf,
|
||||
png_size_t length);
|
||||
\fI\fB
|
||||
|
||||
png_voidp png_create_struct (int type, png_malloc_ptr malloc_fn);
|
||||
\fBpng_size_t png_check_keyword (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIkey\fP\fB, png_charpp \fInew_key\fP\fB);\fP
|
||||
|
||||
png_voidp png_create_struct_2 (int type);
|
||||
\fI\fB
|
||||
|
||||
void png_destroy_struct (png_voidp struct_ptr);
|
||||
\fBvoid png_combine_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fImask\fP\fB);\fP
|
||||
|
||||
void png_destroy_struct_2 (png_voidp struct_ptr, png_free_ptr
|
||||
free_fn);
|
||||
\fI\fB
|
||||
|
||||
void png_do_background (png_row_infop row_info, png_bytep row,
|
||||
png_color_16p trans_values, png_color_16p background,
|
||||
png_color_16p background_1, png_bytep gamma_table, png_bytep
|
||||
gamma_from_1, png_bytep gamma_to_1, png_uint_16pp gamma_16,
|
||||
png_uint_16pp gamma_16_from_1, png_uint_16pp gamma_16_to_1, int
|
||||
gamma_shift);
|
||||
\fBvoid png_correct_palette (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fInum_palette\fP\fB);\fP
|
||||
|
||||
void png_do_bgr (png_row_infop row_info, png_bytep row);
|
||||
\fI\fB
|
||||
|
||||
void png_do_chop (png_row_infop row_info, png_bytep row);
|
||||
\fBint png_crc_error (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
void png_do_dither (png_row_infop row_info, png_bytep row,
|
||||
png_bytep palette_lookup, png_bytep dither_lookup);
|
||||
\fI\fB
|
||||
|
||||
void png_do_expand (png_row_infop row_info, png_bytep row,
|
||||
png_color_16p trans_value);
|
||||
\fBint png_crc_finish (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIskip\fP\fB);\fP
|
||||
|
||||
void png_do_expand_palette (png_row_infop row_info, png_bytep
|
||||
row, png_colorp palette, png_bytep trans, int num_trans);
|
||||
\fI\fB
|
||||
|
||||
void png_do_gamma (png_row_infop row_info, png_bytep row,
|
||||
png_bytep gamma_table, png_uint_16pp gamma_16_table, int
|
||||
gamma_shift);
|
||||
\fBvoid png_crc_read (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuf\fP\fB, png_size_t \fIlength\fP\fB);\fP
|
||||
|
||||
void png_do_gray_to_rgb (png_row_infop row_info, png_bytep
|
||||
row);
|
||||
\fI\fB
|
||||
|
||||
void png_do_invert (png_row_infop row_info, png_bytep row);
|
||||
\fBpng_voidp png_create_struct (int \fP\fItype\fP\fB, png_malloc_ptr \fImalloc_fn\fP\fB);\fP
|
||||
|
||||
void png_do_pack (png_row_infop row_info, png_bytep row,
|
||||
png_uint_32 bit_depth);
|
||||
\fI\fB
|
||||
|
||||
void png_do_packswap (png_row_infop row_info, png_bytep row);
|
||||
\fBpng_voidp png_create_struct_2 (int \fItype\fP\fB);\fP
|
||||
|
||||
void png_do_read_filler (png_row_infop row_info, png_bytep row,
|
||||
png_uint_32 filler, png_uint_32 flags);
|
||||
\fI\fB
|
||||
|
||||
void png_do_read_interlace (png_row_infop row_info, png_bytep
|
||||
row, int pass, png_uint_32 transformations);
|
||||
\fBvoid png_destroy_struct (png_voidp \fIstruct_ptr\fP\fB);\fP
|
||||
|
||||
void png_do_read_invert_alpha (png_row_infop row_info,
|
||||
png_bytep row);
|
||||
\fI\fB
|
||||
|
||||
void png_do_read_swap_alpha (png_row_infop row_info, png_bytep
|
||||
row);
|
||||
\fBvoid png_destroy_struct_2 (png_voidp \fP\fIstruct_ptr\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
|
||||
|
||||
void png_do_read_transformations (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
int png_do_rgb_to_gray (png_row_infop row_info, png_bytep
|
||||
row);
|
||||
\fBvoid png_do_background (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_16p \fP\fItrans_values\fP\fB, png_color_16p \fP\fIbackground\fP\fB, png_color_16p \fP\fIbackground_1\fP\fB, png_bytep \fP\fIgamma_table\fP\fB, png_bytep \fP\fIgamma_from_1\fP\fB, png_bytep \fP\fIgamma_to_1\fP\fB, png_uint_16pp \fP\fIgamma_16\fP\fB, png_uint_16pp \fP\fIgamma_16_from_1\fP\fB, png_uint_16pp \fP\fIgamma_16_to_1\fP\fB, int \fIgamma_shift\fP\fB);\fP
|
||||
|
||||
void png_do_shift (png_row_infop row_info, png_bytep row,
|
||||
png_color_8p bit_depth);
|
||||
\fI\fB
|
||||
|
||||
void png_do_strip_filler (png_row_infop row_info, png_bytep
|
||||
row, png_uint_32 flags);
|
||||
\fBvoid png_do_bgr (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_do_swap (png_row_infop row_info, png_bytep row);
|
||||
\fI\fB
|
||||
|
||||
void png_do_unpack (png_row_infop row_info, png_bytep row);
|
||||
\fBvoid png_do_chop (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_do_unshift (png_row_infop row_info, png_bytep row,
|
||||
png_color_8p sig_bits);
|
||||
\fI\fB
|
||||
|
||||
void png_do_write_interlace (png_row_infop row_info, png_bytep
|
||||
row, int pass);
|
||||
\fBvoid png_do_dither (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIpalette_lookup\fP\fB, png_bytep \fIdither_lookup\fP\fB);\fP
|
||||
|
||||
void png_do_write_invert_alpha (png_row_infop row_info,
|
||||
png_bytep row);
|
||||
\fI\fB
|
||||
|
||||
void png_do_write_swap_alpha (png_row_infop row_info, png_bytep
|
||||
row);
|
||||
\fBvoid png_do_expand (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_16p \fItrans_value\fP\fB);\fP
|
||||
|
||||
void png_do_write_transformations (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
void *png_far_to_near (png_structp png_ptr,png_voidp ptr,
|
||||
int check);
|
||||
\fBvoid png_do_expand_palette (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_colorp \fP\fIpalette\fP\fB, png_bytep \fP\fItrans\fP\fB, int \fInum_trans\fP\fB);\fP
|
||||
|
||||
void png_flush (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
png_int_32 png_get_int_32 (png_bytep buf);
|
||||
\fBvoid png_do_gamma (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIgamma_table\fP\fB, png_uint_16pp \fP\fIgamma_16_table\fP\fB, int \fIgamma_shift\fP\fB);\fP
|
||||
|
||||
png_uint_16 png_get_uint_16 (png_bytep buf);
|
||||
\fI\fB
|
||||
|
||||
png_uint_32 png_get_uint_32 (png_bytep buf);
|
||||
\fBvoid png_do_gray_to_rgb (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_handle_bKGD (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_handle_cHRM (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fBvoid png_do_invert (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_handle_gAMA (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_handle_hIST (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fBvoid png_do_pack (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_uint_32 \fIbit_depth\fP\fB);\fP
|
||||
|
||||
void png_handle_IEND (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_handle_IHDR (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fBvoid png_do_packswap (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_handle_oFFs (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_handle_pCAL (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fBvoid png_do_read_filler (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, png_uint_32 \fIflags\fP\fB);\fP
|
||||
|
||||
void png_handle_pHYs (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_handle_PLTE (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fBvoid png_do_read_interlace (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fP\fIpass\fP\fB, png_uint_32 \fItransformations\fP\fB);\fP
|
||||
|
||||
void png_handle_sBIT (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_handle_sRGB (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fBvoid png_do_read_invert_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_handle_tEXt (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_handle_tIME (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fBvoid png_do_read_swap_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_handle_tRNS (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_handle_unknown (png_structp png_ptr, png_infop
|
||||
info_ptr, png_uint_32 length);
|
||||
\fBvoid png_do_read_transformations (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
void png_handle_zTXt (png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_info_destroy (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fBint png_do_rgb_to_gray (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_init_read_transformations (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_process_IDAT_data (png_structp png_ptr, png_bytep
|
||||
buffer, png_size_t buffer_length);
|
||||
\fBvoid png_do_shift (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_8p \fIbit_depth\fP\fB);\fP
|
||||
|
||||
void png_process_some_data (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_push_check_crc (png_structp png_ptr);
|
||||
\fBvoid png_do_strip_filler (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_uint_32 \fIflags\fP\fB);\fP
|
||||
|
||||
void png_push_crc_finish (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_push_crc_skip (png_structp png_ptr, png_uint_32
|
||||
length);
|
||||
\fBvoid png_do_swap (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_push_fill_buffer (png_structp png_ptr, png_bytep
|
||||
buffer, png_size_t length);
|
||||
\fI\fB
|
||||
|
||||
void png_push_handle_tEXt (png_structp png_ptr, png_infop
|
||||
info_ptr, png_uint_32 length);
|
||||
\fBvoid png_do_unpack (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_push_handle_unknown (png_structp png_ptr, png_infop
|
||||
info_ptr, png_uint_32 length);
|
||||
\fI\fB
|
||||
|
||||
void png_push_handle_zTXt (png_structp png_ptr, png_infop
|
||||
info_ptr, png_uint_32 length);
|
||||
\fBvoid png_do_unshift (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_color_8p \fIsig_bits\fP\fB);\fP
|
||||
|
||||
void png_push_have_end (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_push_have_info (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fBvoid png_do_write_interlace (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, int \fIpass\fP\fB);\fP
|
||||
|
||||
void png_push_have_row (png_structp png_ptr, png_bytep row);
|
||||
\fI\fB
|
||||
|
||||
void png_push_process_row (png_structp png_ptr);
|
||||
\fBvoid png_do_write_invert_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_push_read_chunk (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_push_read_end (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fBvoid png_do_write_swap_alpha (png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
void png_push_read_IDAT (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_push_read_sig (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fBvoid png_do_write_transformations (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
void png_push_read_tEXt (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_push_read_zTXt (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fBvoid *png_far_to_near (png_structp png_ptr,png_voidp \fP\fIptr\fP\fB, int \fIcheck\fP\fB);\fP
|
||||
|
||||
void png_push_restore_buffer (png_structp png_ptr, png_bytep
|
||||
buffer, png_size_t buffer_length);
|
||||
\fI\fB
|
||||
|
||||
void png_push_save_buffer (png_structp png_ptr);
|
||||
\fBvoid png_flush (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
void png_read_data (png_structp png_ptr, png_bytep data,
|
||||
png_size_t length);
|
||||
\fI\fB
|
||||
|
||||
void png_read_filter_row (png_structp png_ptr, png_row_infop
|
||||
row_info, png_bytep row, png_bytep prev_row, int filter);
|
||||
\fBpng_int_32 png_get_int_32 (png_bytep \fIbuf\fP\fB);\fP
|
||||
|
||||
void png_read_finish_row (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_read_init (png_structp png_ptr);
|
||||
\fBpng_uint_16 png_get_uint_16 (png_bytep \fIbuf\fP\fB);\fP
|
||||
|
||||
void png_read_push_finish_row (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_read_start_row (png_structp png_ptr);
|
||||
\fBpng_uint_32 png_get_uint_32 (png_bytep \fIbuf\fP\fB);\fP
|
||||
|
||||
void png_read_transform_info (png_structp png_ptr, png_infop
|
||||
info_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_reset_crc (png_structp png_ptr);
|
||||
\fBvoid png_handle_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_save_int_32 (png_bytep buf, png_int_32 i);
|
||||
\fI\fB
|
||||
|
||||
void png_save_uint_16 (png_bytep buf, unsigned int i);
|
||||
\fBvoid png_handle_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_save_uint_32 (png_bytep buf, png_uint_32 i);
|
||||
\fI\fB
|
||||
|
||||
void png_write_bKGD (png_structp png_ptr, png_color_16p values,
|
||||
int color_type);
|
||||
\fBvoid png_handle_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_cHRM (png_structp png_ptr, double white_x,
|
||||
double white_y, double red_x, double red_y, double green_x,
|
||||
double green_y, double blue_x, double blue_y);
|
||||
\fI\fB
|
||||
|
||||
void png_write_data (png_structp png_ptr, png_bytep data,
|
||||
png_size_t length);
|
||||
void png_write_filtered_row (png_structp png_ptr, png_bytep
|
||||
filtered_row);
|
||||
\fBvoid png_handle_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_find_filter (png_structp png_ptr, png_row_infop
|
||||
row_info);
|
||||
\fI\fB
|
||||
|
||||
void png_write_finish_row (png_structp png_ptr);
|
||||
\fBvoid png_handle_IEND (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_gAMA (png_structp png_ptr, double file_gamma);
|
||||
\fI\fB
|
||||
|
||||
void png_write_hIST (png_structp png_ptr, png_uint_16p hist,
|
||||
int num_hist);
|
||||
\fBvoid png_handle_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_init (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_write_IDAT (png_structp png_ptr, png_bytep data,
|
||||
png_size_t length);
|
||||
\fBvoid png_handle_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_IEND (png_structp png_ptr);
|
||||
\fI\fB
|
||||
|
||||
void png_write_IHDR (png_structp png_ptr, png_uint_32 width,
|
||||
png_uint_32 height, int bit_depth, int color_type, int
|
||||
compression_type, int filter_type, int interlace_type);
|
||||
\fBvoid png_handle_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_oFFs (png_structp png_ptr, png_uint_32 x_offset,
|
||||
png_uint_32 y_offset, int unit_type);
|
||||
\fI\fB
|
||||
|
||||
void png_write_pCAL (png_structp png_ptr, png_charp purpose,
|
||||
png_int_32 X0, png_int_32 X1, int type, int nparams, png_charp
|
||||
units, png_charpp params);
|
||||
\fBvoid png_handle_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_pHYs (png_structp png_ptr, png_uint_32
|
||||
x_pixels_per_unit, png_uint_32 y_pixels_per_unit, int
|
||||
unit_type);
|
||||
\fI\fB
|
||||
|
||||
void png_write_PLTE (png_structp png_ptr, png_colorp palette,
|
||||
png_uint_32 num_pal);
|
||||
\fBvoid png_handle_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_sBIT (png_structp png_ptr, png_color_8p sbit,
|
||||
int color_type);
|
||||
\fI\fB
|
||||
|
||||
void png_write_sig (png_structp png_ptr);
|
||||
\fBvoid png_handle_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_sRGB (png_structp png_ptr, int intent);
|
||||
\fI\fB
|
||||
|
||||
void png_write_start_row (png_structp png_ptr);
|
||||
\fBvoid png_handle_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_tEXt (png_structp png_ptr, png_charp key,
|
||||
png_charp text, png_size_t text_len);
|
||||
\fI\fB
|
||||
|
||||
void png_write_tIME (png_structp png_ptr, png_timep mod_time);
|
||||
\fBvoid png_handle_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
void png_write_tRNS (png_structp png_ptr, png_bytep trans,
|
||||
png_color_16p values, int number, int color_type);
|
||||
\fI\fB
|
||||
|
||||
void png_write_zTXt (png_structp png_ptr, png_charp key,
|
||||
png_charp text, png_size_t text_len, int compression);
|
||||
\fBvoid png_handle_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
voidpf png_zalloc (voidpf png_ptr, uInt items, uInt size);
|
||||
\fI\fB
|
||||
|
||||
void png_zfree (voidpf png_ptr, voidpf ptr);
|
||||
\fBvoid png_handle_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_handle_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_handle_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_info_destroy (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_init_read_transformations (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_process_IDAT_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_length\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_process_some_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_check_crc (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_crc_finish (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_crc_skip (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_fill_buffer (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_handle_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_handle_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_handle_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_have_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_have_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_have_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_process_row (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_read_chunk (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_read_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_read_IDAT (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_read_sig (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_read_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_read_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_restore_buffer (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_length\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_push_save_buffer (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_read_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_read_filter_row (png_structp \fP\fIpng_ptr\fP\fB, png_row_infop \fP\fIrow_info\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fP\fIprev_row\fP\fB, int \fIfilter\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_read_finish_row (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_read_init (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_read_push_finish_row (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_read_start_row (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_read_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_reset_crc (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_save_int_32 (png_bytep \fP\fIbuf\fP\fB, png_int_32 \fIi\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_save_uint_16 (png_bytep \fP\fIbuf\fP\fB, unsigned int \fIi\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_save_uint_32 (png_bytep \fP\fIbuf\fP\fB, png_uint_32 \fIi\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIvalues\fP\fB, int \fIcolor_type\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_cHRM (png_structp \fP\fIpng_ptr\fP\fB, double \fP\fIwhite_x\fP\fB, double \fP\fIwhite_y\fP\fB, double \fP\fIred_x\fP\fB, double \fP\fIred_y\fP\fB, double \fP\fIgreen_x\fP\fB, double \fP\fIgreen_y\fP\fB, double \fP\fIblue_x\fP\fB, double \fIblue_y\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
|
||||
|
||||
\fBvoid png_write_filtered_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIfiltered_row\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_find_filter (png_structp \fP\fIpng_ptr\fP\fB, png_row_infop \fIrow_info\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_finish_row (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_gAMA (png_structp \fP\fIpng_ptr\fP\fB, double \fIfile_gamma\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_uint_16p \fP\fIhist\fP\fB, int \fInum_hist\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_init (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_IDAT (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_IEND (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIwidth\fP\fB, png_uint_32 \fP\fIheight\fP\fB, int \fP\fIbit_depth\fP\fB, int \fP\fIcolor_type\fP\fB, int \fP\fIcompression_type\fP\fB, int \fP\fIfilter_type\fP\fB, int \fIinterlace_type\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIx_offset\fP\fB, png_uint_32 \fP\fIy_offset\fP\fB, int \fIunit_type\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIpurpose\fP\fB, png_int_32 \fP\fIX0\fP\fB, png_int_32 \fP\fIX1\fP\fB, int \fP\fItype\fP\fB, int \fP\fInparams\fP\fB, png_charp \fP\fIunits\fP\fB, png_charpp \fIparams\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIx_pixels_per_unit\fP\fB, png_uint_32 \fP\fIy_pixels_per_unit\fP\fB, int \fIunit_type\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, png_uint_32 \fInum_pal\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_color_8p \fP\fIsbit\fP\fB, int \fIcolor_type\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_sig (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_sRGB (png_structp \fP\fIpng_ptr\fP\fB, int \fIintent\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_start_row (png_structp \fIpng_ptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_tEXt (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIkey\fP\fB, png_charp \fP\fItext\fP\fB, png_size_t \fItext_len\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_timep \fImod_time\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fItrans\fP\fB, png_color_16p \fP\fIvalues\fP\fB, int \fP\fInumber\fP\fB, int \fIcolor_type\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_write_zTXt (png_structp \fP\fIpng_ptr\fP\fB, png_charp \fP\fIkey\fP\fB, png_charp \fP\fItext\fP\fB, png_size_t \fP\fItext_len\fP\fB, int \fIcompression\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoidpf png_zalloc (voidpf \fP\fIpng_ptr\fP\fB, uInt \fP\fIitems\fP\fB, uInt \fIsize\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
\fBvoid png_zfree (voidpf \fP\fIpng_ptr\fP\fB, voidpf \fIptr\fP\fB);\fP
|
||||
|
||||
\fI\fB
|
||||
|
||||
.SH DESCRIPTION
|
||||
The functions listed above are used privately by libpng
|
||||
|
||||
22
png.5
22
png.5
@ -1,4 +1,4 @@
|
||||
.TH PNG 5 "January 14, 1999"
|
||||
.TH PNG 5 "September 17, 1999"
|
||||
.SH NAME
|
||||
png \- Portable Network Graphics (PNG) format
|
||||
.SH DESCRIPTION
|
||||
@ -20,7 +20,14 @@ platforms.
|
||||
.SH "SEE ALSO"
|
||||
.IR libpng(3), zlib(3), deflate(5), and zlib(5)
|
||||
.LP
|
||||
PNG specification:
|
||||
PNG 1.1 specification, January 1999:
|
||||
.IP
|
||||
.br
|
||||
http://www.cdrom.com/pub/png
|
||||
.LP
|
||||
PNG 1.0 specification, October 1996:
|
||||
.IP
|
||||
.br
|
||||
RFC 2083
|
||||
.IP
|
||||
.br
|
||||
@ -32,12 +39,19 @@ http://www.w3.org/TR/REC-png.html
|
||||
.SH AUTHORS
|
||||
This man page: Glenn Randers-Pehrson
|
||||
.LP
|
||||
Portable Network Graphics (PNG) Specification Version 1.2 (July 8, 1999):
|
||||
Glenn Randers-Pehrson and others (png-list@ccrc.wustl.edu).
|
||||
.LP
|
||||
Portable Network Graphics (PNG) Specification Version 1.0 (October 1, 1996):
|
||||
Thomas Boutell and others (png-list@dworkin.wustl.edu).
|
||||
Thomas Boutell and others (png-list@ccrc.wustl.edu).
|
||||
.LP
|
||||
|
||||
|
||||
.SH COPYRIGHT NOTICE
|
||||
The PNG specification is copyright (c) 1996 Massachussets Institute of
|
||||
The PNG-1.2 specification is copyright (c) 1999 Glenn Randers-Pehrson.
|
||||
See the specification for conditions of use and distribution.
|
||||
.LP
|
||||
The PNG-1.0 specification is copyright (c) 1996 Massachussets Institute of
|
||||
Technology. See the specification for conditions of use and distribution.
|
||||
.LP
|
||||
.\" end of man page
|
||||
|
||||
8
png.c
8
png.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* png.c - location for general purpose libpng functions
|
||||
*
|
||||
* libpng version 1.0.3 - January 14, 1999
|
||||
* libpng version 1.0.4 - September 17, 1999
|
||||
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
|
||||
* Copyright (c) 1996, 1997 Andreas Dilger
|
||||
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson
|
||||
@ -16,7 +16,7 @@
|
||||
* string defined in png.h.
|
||||
*/
|
||||
|
||||
char png_libpng_ver[12] = "1.0.3";
|
||||
char png_libpng_ver[12] = "1.0.4";
|
||||
|
||||
/* Place to hold the signature string for a PNG file. */
|
||||
png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
|
||||
@ -352,8 +352,8 @@ png_get_copyright(png_structp png_ptr)
|
||||
{
|
||||
if(png_ptr == NULL)
|
||||
/* silence compiler warning about unused png_ptr */ ;
|
||||
return("\n libpng version 1.0.3 - January 14, 1999\n\
|
||||
return("\n libpng version 1.0.4 - September 17, 1999\n\
|
||||
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n\
|
||||
Copyright (c) 1996, 1997 Andreas Dilger\n\
|
||||
Copyright (c) 1998, 1999, Glenn Randers-Pehrson\n");
|
||||
Copyright (c) 1998, 1999 Glenn Randers-Pehrson\n");
|
||||
}
|
||||
|
||||
121
png.h
121
png.h
@ -1,11 +1,17 @@
|
||||
|
||||
/* png.h - header file for PNG reference library
|
||||
*
|
||||
* libpng version 1.0.3 - January 14, 1999
|
||||
* libpng version 1.0.4 - September 17, 1999
|
||||
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
|
||||
* Copyright (c) 1996, 1997 Andreas Dilger
|
||||
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson
|
||||
*
|
||||
* Authors and maintainers:
|
||||
* libpng versions 0.71, May 1995, through 0.89c, May 1996: Guy Schalnat
|
||||
* libpng versions 0.90, December 1996, through 0.96, May 1997: Andreas Dilger
|
||||
* libpng versions 0.97, January 1998, through 1.0.4 - September 17, 1999: Glenn R-P
|
||||
* See also "Contributing Authors", below.
|
||||
*
|
||||
* Y2K compliance in libpng:
|
||||
* =========================
|
||||
*
|
||||
@ -14,9 +20,9 @@
|
||||
* Since the PNG Development group is an ad-hoc body, we can't make
|
||||
* an official declaration.
|
||||
*
|
||||
* This is your unofficial assurance that libpng from version 0.81 and
|
||||
* upward are Y2K compliant. It is my belief that earlier versions were
|
||||
* also Y2K compliant.
|
||||
* This is your unofficial assurance that libpng from version 0.71 and
|
||||
* upward through 1.0.4 are Y2K compliant. It is my belief that earlier
|
||||
* versions were also Y2K compliant.
|
||||
*
|
||||
* Libpng only has three year fields. One is a 2-byte unsigned integer
|
||||
* that will hold years up to 65535. The other two hold the date in text
|
||||
@ -44,15 +50,17 @@
|
||||
* clock time, which returns (year - 1900), which we properly convert to
|
||||
* the full 4-digit year. There is a possibility that applications using
|
||||
* libpng are not passing 4-digit years into the png_convert_to_rfc_1123()
|
||||
* function, or incorrectly passing only a 2-digit year instead of
|
||||
* "year - 1900" into the png_convert_from_struct_tm() function, but this
|
||||
* is not under our control. The libpng documentation has always stated
|
||||
* that it works with 4-digit years, and the APIs have been documented as
|
||||
* such.
|
||||
* function, or that they are incorrectly passing only a 2-digit year
|
||||
* instead of "year - 1900" into the png_convert_from_struct_tm() function,
|
||||
* but this is not under our control. The libpng documentation has always
|
||||
* stated that it works with 4-digit years, and the APIs have been
|
||||
* documented as such.
|
||||
*
|
||||
* The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned
|
||||
* integer to hold the year, and can hold years as large as 65535.
|
||||
*
|
||||
* zlib, upon which libpng depends, is also Y2K compliant. It contains
|
||||
* no date-related code.
|
||||
*
|
||||
* Glenn Randers-Pehrson
|
||||
* libpng maintainer
|
||||
@ -83,15 +91,18 @@
|
||||
* 1.0.1 1.0.1 10001 2.1.0
|
||||
* 1.0.1a-e 1.0.1a-e 10002 2.1.0.1a-e
|
||||
* 1.0.2 1.0.2 10002 2.1.0.2
|
||||
* 1.0.2a-c 1.0.2a 10003 2.1.0.2a-c
|
||||
* 1.0.2a-b 1.0.2a-b 10003 2.1.0.2a-b
|
||||
* 1.0.3 1.0.3 10003 2.1.0.3
|
||||
* 1.0.3a-d 1.0.3a-d 10004 2.1.0.3a-d
|
||||
* 1.0.4 1.0.4 10004 2.1.0.4
|
||||
*
|
||||
* Henceforth the source version will match the shared-library minor
|
||||
* and patch numbers; the shared-library major version number will be
|
||||
* used for changes in backward compatibility, as it is intended. The
|
||||
* PNG_PNGLIB_VER macro, which is not used within libpng but is available
|
||||
* for applications, is an unsigned integer of the form xyyzz corresponding
|
||||
* to the source version x.y.z (leading zeros in y and z).
|
||||
* to the source version x.y.z (leading zeros in y and z). Internal
|
||||
* png-group versions (x.y.z[a-z]) will be given the next higher number.
|
||||
*
|
||||
* See libpng.txt or libpng.3 for more information. The PNG specification
|
||||
* is available as RFC 2083 <ftp://ftp.uu.net/graphics/png/documents/>
|
||||
@ -121,6 +132,13 @@
|
||||
*
|
||||
* COPYRIGHT NOTICE:
|
||||
*
|
||||
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
|
||||
* (libpng versions 0.5, May 1995, through 0.89c, May 1996)
|
||||
* Copyright (c) 1996, 1997 Andreas Dilger
|
||||
* (libpng versions 0.90, December 1996, through 0.96, May 1997)
|
||||
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson
|
||||
* (libpng versions 0.97, January 1998, through 1.0.4 - September 17, 1999)
|
||||
*
|
||||
* The PNG Reference Library is supplied "AS IS". The Contributing Authors
|
||||
* and Group 42, Inc. disclaim all warranties, expressed or implied,
|
||||
* including, without limitation, the warranties of merchantability and of
|
||||
@ -149,10 +167,6 @@
|
||||
#ifndef _PNG_H
|
||||
#define _PNG_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
/* This is not the place to learn how to use libpng. The file libpng.txt
|
||||
* describes how to use libpng, and the file example.c summarizes it
|
||||
* with some code on which to build. This file is useful for looking
|
||||
@ -165,6 +179,11 @@ extern "C" {
|
||||
/* include all user configurable info */
|
||||
#include "pngconf.h"
|
||||
|
||||
/* Inhibit C++ name-mangling for libpng functions but not for system calls. */
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
/* This file is arranged in several sections. The first section contains
|
||||
* structure and type definitions. The second section contains the external
|
||||
* library functions, while the third has the internal library functions,
|
||||
@ -172,14 +191,14 @@ extern "C" {
|
||||
*/
|
||||
|
||||
/* Version information for png.h - this should match the version in png.c */
|
||||
#define PNG_LIBPNG_VER_STRING "1.0.3"
|
||||
#define PNG_LIBPNG_VER_STRING "1.0.4"
|
||||
|
||||
/* Careful here. At one time, Guy wanted to use 082, but that would be octal.
|
||||
* We must not include leading zeros.
|
||||
* Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only
|
||||
* version 1.0.0 was mis-numbered 100 instead of 10000). From
|
||||
* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=bugfix */
|
||||
#define PNG_LIBPNG_VER 10003 /* 1.0.3 */
|
||||
#define PNG_LIBPNG_VER 10004 /* 1.0.4 */
|
||||
|
||||
/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */
|
||||
#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN)
|
||||
@ -460,6 +479,9 @@ typedef struct png_info_struct
|
||||
typedef png_info FAR * png_infop;
|
||||
typedef png_info FAR * FAR * png_infopp;
|
||||
|
||||
/* Maximum positive integer used in PNG is (2^31)-1 */
|
||||
#define PNG_MAX_UINT ((png_uint_32)0x7fffffffL)
|
||||
|
||||
/* These describe the color_type field in png_info. */
|
||||
/* color type masks */
|
||||
#define PNG_COLOR_MASK_PALETTE 1
|
||||
@ -473,11 +495,11 @@ typedef png_info FAR * FAR * png_infopp;
|
||||
#define PNG_COLOR_TYPE_RGB_ALPHA (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_ALPHA)
|
||||
#define PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA)
|
||||
|
||||
/* This is for compression type. PNG 1.0 only defines the single type. */
|
||||
/* This is for compression type. PNG 1.0-1.2 only define the single type. */
|
||||
#define PNG_COMPRESSION_TYPE_BASE 0 /* Deflate method 8, 32K window */
|
||||
#define PNG_COMPRESSION_TYPE_DEFAULT PNG_COMPRESSION_TYPE_BASE
|
||||
|
||||
/* This is for filter type. PNG 1.0 only defines the single type. */
|
||||
/* This is for filter type. PNG 1.0-1.2 only define the single type. */
|
||||
#define PNG_FILTER_TYPE_BASE 0 /* Single row per-byte filtering */
|
||||
#define PNG_FILTER_TYPE_DEFAULT PNG_FILTER_TYPE_BASE
|
||||
|
||||
@ -575,7 +597,7 @@ typedef void (*png_user_transform_ptr) PNGARG((png_structp,
|
||||
#endif /* PNG_READ|WRITE_USER_TRANSFORM_SUPPORTED */
|
||||
|
||||
typedef png_voidp (*png_malloc_ptr) PNGARG((png_structp, png_size_t));
|
||||
typedef void (*png_free_ptr) PNGARG((png_structp, png_structp));
|
||||
typedef void (*png_free_ptr) PNGARG((png_structp, png_voidp));
|
||||
|
||||
/* The structure that holds the information to read and write PNG files.
|
||||
* The only people who need to care about what is inside of this are the
|
||||
@ -593,12 +615,19 @@ struct png_struct_def
|
||||
png_voidp error_ptr; /* user supplied struct for error functions */
|
||||
png_rw_ptr write_data_fn; /* function for writing output data */
|
||||
png_rw_ptr read_data_fn; /* function for reading input data */
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
|
||||
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
||||
png_voidp io_ptr; /* ptr to application struct for I/O functions*/
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
|
||||
png_user_transform_ptr read_user_transform_fn; /* user read transform */
|
||||
#endif
|
||||
#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
||||
png_user_transform_ptr write_user_transform_fn; /* user write transform */
|
||||
#endif
|
||||
png_voidp io_ptr; /* ptr to application struct for I/O functions*/
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
|
||||
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
||||
png_voidp user_transform_ptr; /* user supplied struct for user transform */
|
||||
int user_transform_depth; /* bit depth of user transformed pixels */
|
||||
int user_transform_channels; /* channels in user transformed pixels */
|
||||
#endif
|
||||
|
||||
png_uint_32 mode; /* tells us where we are in the PNG file */
|
||||
png_uint_32 flags; /* flags indicating various things to libpng */
|
||||
@ -670,10 +699,10 @@ struct png_struct_def
|
||||
float screen_gamma; /* screen gamma value (display_gamma/viewing_gamma */
|
||||
#endif /* PNG_READ_GAMMA_SUPPORTED */
|
||||
#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_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_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 */
|
||||
#endif /* PNG_READ_GAMMA_SUPPORTED || PNG_WRITE_GAMMA_SUPPORTED */
|
||||
@ -751,6 +780,10 @@ struct png_struct_def
|
||||
png_byte rgb_to_gray_green_coeff;
|
||||
png_byte rgb_to_gray_blue_coeff;
|
||||
#endif
|
||||
#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
|
||||
defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
|
||||
png_byte empty_plte_permitted;
|
||||
#endif
|
||||
};
|
||||
|
||||
typedef png_struct FAR * FAR * png_structpp;
|
||||
@ -847,8 +880,11 @@ extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime,
|
||||
#endif /* PNG_WRITE_tIME_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_EXPAND_SUPPORTED)
|
||||
/* Expand data to 24 bit RGB, or 8 bit grayscale, with alpha if available. */
|
||||
/* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */
|
||||
extern PNG_EXPORT(void,png_set_expand) PNGARG((png_structp png_ptr));
|
||||
extern PNG_EXPORT(void,png_set_gray_1_2_4_to_8) PNGARG((png_structp png_ptr));
|
||||
extern PNG_EXPORT(void,png_set_palette_to_rgb) PNGARG((png_structp png_ptr));
|
||||
extern PNG_EXPORT(void,png_set_tRNS_to_alpha) PNGARG((png_structp png_ptr));
|
||||
#endif /* PNG_READ_EXPAND_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
|
||||
@ -857,14 +893,14 @@ extern PNG_EXPORT(void,png_set_bgr) PNGARG((png_structp png_ptr));
|
||||
#endif /* PNG_READ_BGR_SUPPORTED || PNG_WRITE_BGR_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED)
|
||||
/* Expand the grayscale to 24 bit RGB if necessary. */
|
||||
/* Expand the grayscale to 24-bit RGB if necessary. */
|
||||
extern PNG_EXPORT(void,png_set_gray_to_rgb) PNGARG((png_structp png_ptr));
|
||||
#endif /* PNG_READ_GRAY_TO_RGB_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
|
||||
/* Reduce RGB to grayscale. */
|
||||
extern PNG_EXPORT(void,png_set_rgb_to_gray) PNGARG((png_structp png_ptr,
|
||||
int error_action, float red, float green ));
|
||||
int error_action, double red, double green ));
|
||||
extern PNG_EXPORT(png_byte,png_get_rgb_to_gray_status) PNGARG((png_structp
|
||||
png_ptr));
|
||||
#endif /* PNG_READ_RGB_TO_GRAY_SUPPORTED */
|
||||
@ -897,19 +933,19 @@ extern PNG_EXPORT(void,png_set_filler) PNGARG((png_structp png_ptr,
|
||||
#endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
|
||||
/* Swap bytes in 16 bit depth files. */
|
||||
/* Swap bytes in 16-bit depth files. */
|
||||
extern PNG_EXPORT(void,png_set_swap) PNGARG((png_structp png_ptr));
|
||||
#endif /* PNG_READ_SWAP_SUPPORTED || PNG_WRITE_SWAP_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
|
||||
/* Use 1 byte per pixel in 1, 2, or 4 bit depth files. */
|
||||
/* Use 1 byte per pixel in 1, 2, or 4-bit depth files. */
|
||||
extern PNG_EXPORT(void,png_set_packing) PNGARG((png_structp png_ptr));
|
||||
#endif /* PNG_READ_PACK_SUPPORTED || PNG_WRITE_PACK_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED)
|
||||
/* Swap packing order of pixels in bytes. */
|
||||
extern PNG_EXPORT(void,png_set_packswap) PNGARG((png_structp png_ptr));
|
||||
#endif /* PNG_READ_PACKSWAP_SUPPORTED || PNG_WRITE_PACKSWAP_SUPPOR */
|
||||
#endif /* PNG_READ_PACKSWAP_SUPPORTED || PNG_WRITE_PACKSWAP_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
|
||||
/* Converts files to legal bit depths. */
|
||||
@ -940,7 +976,7 @@ extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr,
|
||||
#endif /* PNG_READ_BACKGROUND_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_16_TO_8_SUPPORTED)
|
||||
/* strip the second byte of information from a 16 bit depth file. */
|
||||
/* strip the second byte of information from a 16-bit depth file. */
|
||||
extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr));
|
||||
#endif /* PNG_READ_16_TO_8_SUPPORTED */
|
||||
|
||||
@ -957,6 +993,13 @@ extern PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr,
|
||||
double screen_gamma, double default_file_gamma));
|
||||
#endif /* PNG_READ_GAMMA_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
|
||||
defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
|
||||
/* Permit or disallow empty PLTE (0: not permitted, 1: permitted) */
|
||||
extern PNG_EXPORT(void,png_permit_empty_plte) PNGARG((png_structp png_ptr,
|
||||
int empty_plte_permitted));
|
||||
#endif /* PNG_READ_EMPTY_PLTE_SUPPORTED */
|
||||
|
||||
#if defined(PNG_WRITE_FLUSH_SUPPORTED)
|
||||
/* Set how many lines between output flushes - 0 for no flushing */
|
||||
extern PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows));
|
||||
@ -1217,6 +1260,16 @@ extern PNG_EXPORT(void,png_set_write_user_transform_fn) PNGARG((png_structp
|
||||
png_ptr, png_user_transform_ptr write_user_transform_fn));
|
||||
#endif
|
||||
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
|
||||
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
||||
extern PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp
|
||||
png_ptr, png_voidp user_transform_ptr, int user_transform_depth,
|
||||
int user_transform_channels));
|
||||
/* Return the user pointer associated with the user transform functions */
|
||||
extern PNG_EXPORT(png_voidp,png_get_user_transform_ptr)
|
||||
PNGARG((png_structp png_ptr));
|
||||
#endif
|
||||
|
||||
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
|
||||
/* Sets the function callbacks for the push reader, and a pointer to a
|
||||
* user-defined structure available to the callback functions.
|
||||
@ -1552,7 +1605,7 @@ png_get_header_version(png_structp png_ptr)
|
||||
{
|
||||
if(png_ptr == NULL)
|
||||
/* silence compiler warning about unused png_ptr */ ;
|
||||
return("\n libpng version 1.0.3 - January 14, 1999 (header)\n");
|
||||
return("\n libpng version 1.0.4 - September 17, 1999 (header)\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -1823,7 +1876,7 @@ PNG_EXTERN void png_save_uint_32 PNGARG((png_bytep buf, png_uint_32 i));
|
||||
PNG_EXTERN void png_save_int_32 PNGARG((png_bytep buf, png_int_32 i));
|
||||
#endif
|
||||
|
||||
/* Place a 16 bit number into a buffer in PNG byte order.
|
||||
/* Place a 16-bit number into a buffer in PNG byte order.
|
||||
* The parameter is declared unsigned int, not png_uint_16,
|
||||
* just to avoid potential problems on pre-ANSI C compilers.
|
||||
*/
|
||||
|
||||
32
pngasmrd.h
Normal file
32
pngasmrd.h
Normal file
@ -0,0 +1,32 @@
|
||||
/* pngasmrd.h - assembler version of utilities to read a PNG file
|
||||
*
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* For conditions of distribution and use, see copyright notice in png.h
|
||||
* Copyright (c) 1999 Glenn Randers-Pehrson
|
||||
*
|
||||
*/
|
||||
|
||||
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
|
||||
|
||||
/* Set this in the makefile for VC++ on Pentium, not in pngconf.h */
|
||||
#ifdef PNG_USE_PNGVCRD
|
||||
/* Platform must be Pentium. Makefile must assemble and load pngvcrd.c .
|
||||
* MMX will be detected at run time and used if present.
|
||||
*/
|
||||
#define PNG_HAVE_ASSEMBLER_COMBINE_ROW
|
||||
#define PNG_HAVE_ASSEMBLER_READ_INTERLACE
|
||||
#define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
|
||||
#endif
|
||||
|
||||
/* Set this in the makefile for gcc on Pentium, not in pngconf.h */
|
||||
#ifdef PNG_USE_PNGGCCRD
|
||||
/* Platform must be Pentium. Makefile must assemble and load pnggccrd.c
|
||||
* (not available in libpng-1.0.3a).
|
||||
* MMX will be detected at run time and used if present.
|
||||
*/
|
||||
#define PNG_HAVE_ASSEMBLER_COMBINE_ROW
|
||||
#define PNG_HAVE_ASSEMBLER_READ_INTERLACE
|
||||
#define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
|
||||
#endif
|
||||
|
||||
#endif
|
||||
29
pngconf.h
29
pngconf.h
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngconf.h - machine configurable file for libpng
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -54,25 +54,24 @@
|
||||
* prevent these from being compiled and used. #defining PNG_NO_STDIO
|
||||
* will also prevent these, plus will prevent the entire set of stdio
|
||||
* macros and functions (FILE *, printf, etc.) from being compiled and used,
|
||||
* unless PNG_DEBUG has been #defined.
|
||||
* unless (PNG_DEBUG > 0) has been #defined.
|
||||
*
|
||||
* #define PNG_NO_CONSOLE_IO
|
||||
* #define PNG_NO_STDIO
|
||||
*/
|
||||
|
||||
#ifdef PNG_DEBUG
|
||||
# if (PNG_DEBUG > 0)
|
||||
# include <stdio.h>
|
||||
# endif
|
||||
#else
|
||||
# ifdef PNG_NO_STDIO
|
||||
# ifndef PNG_NO_CONSOLE_IO
|
||||
# define PNG_NO_CONSOLE_IO
|
||||
# endif
|
||||
# else
|
||||
# ifdef PNG_DEBUG
|
||||
# if (PNG_DEBUG > 0)
|
||||
# include <stdio.h>
|
||||
# endif
|
||||
# endif
|
||||
# else
|
||||
# include <stdio.h>
|
||||
# endif
|
||||
|
||||
/* This macro protects us against machines that don't have function
|
||||
* prototypes (ie K&R style headers). If your compiler does not handle
|
||||
@ -173,7 +172,7 @@ __dont__ include it again
|
||||
#endif
|
||||
|
||||
/* Codewarrior on NT has linking problems without this. */
|
||||
#if defined(__MWERKS__) && defined(WIN32)
|
||||
#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
|
||||
#define PNG_ALWAYS_EXTERN
|
||||
#endif
|
||||
|
||||
@ -339,6 +338,10 @@ __dont__ include it again
|
||||
#define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel and SGI */
|
||||
#endif
|
||||
|
||||
#ifndef PNG_NO_READ_EMPTY_PLTE
|
||||
#define PNG_READ_EMPTY_PLTE_SUPPORTED /* useful for MNG applications */
|
||||
#endif
|
||||
|
||||
#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
|
||||
#ifndef PNG_NO_WRITE_SHIFT
|
||||
#define PNG_WRITE_SHIFT_SUPPORTED
|
||||
@ -384,6 +387,10 @@ __dont__ include it again
|
||||
#define PNG_WRITE_FLUSH_SUPPORTED
|
||||
#endif
|
||||
|
||||
#ifndef PNG_NO_WRITE_EMPTY_PLTE
|
||||
#define PNG_WRITE_EMPTY_PLTE_SUPPORTED /* useful for MNG applications */
|
||||
#endif
|
||||
|
||||
#ifndef PNG_NO_STDIO
|
||||
#define PNG_TIME_RFC1123_SUPPORTED
|
||||
#endif
|
||||
@ -408,6 +415,10 @@ __dont__ include it again
|
||||
#define PNG_EASY_ACCESS_SUPPORTED
|
||||
#endif
|
||||
|
||||
#ifndef PNG_NO_ASSEMBLER_CODE
|
||||
#define PNG_ASSEMBLER_CODE_SUPPORTED
|
||||
#endif
|
||||
|
||||
/* These are currently experimental features, define them if you want */
|
||||
|
||||
/* very little testing */
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngerror.c - stub functions for i/o and memory allocation
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
|
||||
4
pngget.c
4
pngget.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngget.c - retrieval of values from info struct
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -454,7 +454,7 @@ png_get_IHDR(png_structp png_ptr, png_infop info_ptr,
|
||||
channels++;
|
||||
pixel_depth = *bit_depth * channels;
|
||||
rowbytes_per_pixel = (pixel_depth + 7) >> 3;
|
||||
if ((*width > (png_uint_32)2147483647L/rowbytes_per_pixel))
|
||||
if ((*width > PNG_MAX_UINT/rowbytes_per_pixel))
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Width too large for libpng to process image data.");
|
||||
|
||||
9
pngmem.c
9
pngmem.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngmem.c - stub functions for memory allocation
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -157,8 +157,9 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
|
||||
ret = NULL;
|
||||
}
|
||||
|
||||
if(png_ptr->zlib_window_bits > 14)
|
||||
num_blocks = (int)(1 << (png_ptr->zlib_window_bits - 14));
|
||||
if (num_blocks < 1)
|
||||
else
|
||||
num_blocks = 1;
|
||||
if (png_ptr->zlib_mem_level >= 7)
|
||||
num_blocks += (int)(1 << (png_ptr->zlib_mem_level - 7));
|
||||
@ -192,12 +193,12 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
|
||||
if ((png_size_t)hptr & 0xf)
|
||||
{
|
||||
hptr = (png_byte huge *)((long)(hptr) & 0xfffffff0L);
|
||||
hptr += 16L;
|
||||
hptr = hptr + 16L; /* "hptr += 16L" fails on Turbo C++ 3.0 */
|
||||
}
|
||||
for (i = 0; i < num_blocks; i++)
|
||||
{
|
||||
png_ptr->offset_table_ptr[i] = (png_bytep)hptr;
|
||||
hptr += (png_uint_32)65536L;
|
||||
hptr = hptr + (png_uint_32)65536L; /* "+=" fails on TC++3.0 */
|
||||
}
|
||||
|
||||
png_ptr->offset_table_number = num_blocks;
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngpread.c - read a png file in push mode
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
|
||||
21
pngread.c
21
pngread.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngread.c - read a PNG file
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -188,7 +188,8 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
|
||||
png_reset_crc(png_ptr);
|
||||
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
|
||||
|
||||
png_debug1(0, "Reading %s chunk.\n", png_ptr->chunk_name);
|
||||
png_debug2(0, "Reading %s chunk, length=%d.\n", png_ptr->chunk_name,
|
||||
length);
|
||||
|
||||
/* This should be a binary subdivision search or a hash for
|
||||
* matching the chunk name rather than a linear search.
|
||||
@ -530,7 +531,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
|
||||
* not called png_set_interlace_handling(), the display_row buffer will
|
||||
* be ignored, so pass NULL to it.
|
||||
*
|
||||
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.3.
|
||||
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.4.
|
||||
*/
|
||||
|
||||
void
|
||||
@ -579,7 +580,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
|
||||
* only call this function once. If you desire to have an image for
|
||||
* each pass of a interlaced image, use png_read_rows() instead.
|
||||
*
|
||||
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.3.
|
||||
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.4.
|
||||
*/
|
||||
void
|
||||
png_read_image(png_structp png_ptr, png_bytepp image)
|
||||
@ -590,7 +591,16 @@ png_read_image(png_structp png_ptr, png_bytepp image)
|
||||
|
||||
png_debug(1, "in png_read_image\n");
|
||||
/* save jump buffer and error functions */
|
||||
|
||||
#ifdef PNG_READ_INTERLACING_SUPPORTED
|
||||
pass = png_set_interlace_handling(png_ptr);
|
||||
#else
|
||||
if (png_ptr->interlaced)
|
||||
png_error(png_ptr,
|
||||
"Cannot read interlaced image -- interlace handler disabled.");
|
||||
pass = 1;
|
||||
#endif
|
||||
|
||||
|
||||
image_height=png_ptr->height;
|
||||
png_ptr->num_rows = image_height; /* Make sure this is set correctly */
|
||||
@ -805,8 +815,11 @@ png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
|
||||
#endif
|
||||
if (png_ptr->flags & PNG_FLAG_FREE_PALETTE)
|
||||
png_zfree(png_ptr, png_ptr->palette);
|
||||
#if defined(PNG_READ_tRNS_SUPPORTED) || defined(PNG_WRITE_tRNS_SUPPORTED) || \
|
||||
defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
|
||||
if (png_ptr->flags & PNG_FLAG_FREE_TRANS)
|
||||
png_free(png_ptr, png_ptr->trans);
|
||||
#endif
|
||||
#if defined(PNG_READ_hIST_SUPPORTED)
|
||||
if (png_ptr->flags & PNG_FLAG_FREE_HIST)
|
||||
png_free(png_ptr, png_ptr->hist);
|
||||
|
||||
2
pngrio.c
2
pngrio.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngrio.c - functions for data input
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
|
||||
100
pngrtran.c
100
pngrtran.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngrtran.c - transforms the data in a row for PNG readers
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -523,7 +523,7 @@ png_set_gamma(png_structp png_ptr, double scrn_gamma, double file_gamma)
|
||||
|
||||
#if defined(PNG_READ_EXPAND_SUPPORTED)
|
||||
/* Expand paletted images to rgb, expand grayscale images of
|
||||
* less than 8 bit depth to 8 bit depth, and expand tRNS chunks
|
||||
* less than 8-bit depth to 8-bit depth, and expand tRNS chunks
|
||||
* to alpha channels.
|
||||
*/
|
||||
void
|
||||
@ -532,7 +532,45 @@ png_set_expand(png_structp png_ptr)
|
||||
png_debug(1, "in png_set_expand\n");
|
||||
png_ptr->transformations |= PNG_EXPAND;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* GRR 19990627: the following three functions currently are identical
|
||||
* to png_set_expand(). However, it is entirely reasonable that someone
|
||||
* might wish to expand an indexed image to RGB but *not* expand a single,
|
||||
* fully transparent palette entry to a full alpha channel--perhaps instead
|
||||
* convert tRNS to the grayscale/RGB format (16-bit RGB value), or replace
|
||||
* the transparent color with a particular RGB value, or drop tRNS entirely.
|
||||
* IOW, a future version of the library may make the transformations flag
|
||||
* a bit more fine-grained, with separate bits for each of these three
|
||||
* functions.
|
||||
*
|
||||
* More to the point, these functions make it obvious what libpng will be
|
||||
* doing, whereas "expand" can (and does) mean any number of things.
|
||||
*/
|
||||
|
||||
/* Expand paletted images to RGB. */
|
||||
void
|
||||
png_set_palette_to_rgb(png_structp png_ptr)
|
||||
{
|
||||
png_debug(1, "in png_set_expand\n");
|
||||
png_ptr->transformations |= PNG_EXPAND;
|
||||
}
|
||||
|
||||
/* Expand grayscale images of less than 8-bit depth to 8 bits. */
|
||||
void
|
||||
png_set_gray_1_2_4_to_8(png_structp png_ptr)
|
||||
{
|
||||
png_debug(1, "in png_set_expand\n");
|
||||
png_ptr->transformations |= PNG_EXPAND;
|
||||
}
|
||||
|
||||
/* Expand tRNS chunks to alpha channels. */
|
||||
void
|
||||
png_set_tRNS_to_alpha(png_structp png_ptr)
|
||||
{
|
||||
png_debug(1, "in png_set_expand\n");
|
||||
png_ptr->transformations |= PNG_EXPAND;
|
||||
}
|
||||
#endif /* defined(PNG_READ_EXPAND_SUPPORTED) */
|
||||
|
||||
#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED)
|
||||
void
|
||||
@ -548,8 +586,8 @@ png_set_gray_to_rgb(png_structp png_ptr)
|
||||
* for example, to convert a 24 bpp RGB image into an 8 bpp grayscale image.
|
||||
*/
|
||||
void
|
||||
png_set_rgb_to_gray(png_structp png_ptr, int error_action, float red,
|
||||
float green)
|
||||
png_set_rgb_to_gray(png_structp png_ptr, int error_action, double red,
|
||||
double green)
|
||||
{
|
||||
png_debug(1, "in png_set_rgb_to_gray\n");
|
||||
switch(error_action)
|
||||
@ -570,8 +608,8 @@ png_set_rgb_to_gray(png_structp png_ptr, int error_action, float red,
|
||||
}
|
||||
#endif
|
||||
{
|
||||
png_byte red_byte = (png_byte)(red*255.0 + 0.5);
|
||||
png_byte green_byte = (png_byte)(green*255.0 + 0.5);
|
||||
png_byte red_byte = (png_byte)((float)red*255.0 + 0.5);
|
||||
png_byte green_byte = (png_byte)((float)green*255.0 + 0.5);
|
||||
if(red < 0.0 || green < 0.0)
|
||||
{
|
||||
red_byte = 54;
|
||||
@ -1018,6 +1056,16 @@ png_read_transform_info(png_structp png_ptr, png_infop info_ptr)
|
||||
++info_ptr->channels;
|
||||
#endif
|
||||
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
|
||||
if(png_ptr->transformations & PNG_USER_TRANSFORM)
|
||||
{
|
||||
if(info_ptr->bit_depth < png_ptr->user_transform_depth)
|
||||
info_ptr->bit_depth = png_ptr->user_transform_depth;
|
||||
if(info_ptr->channels < png_ptr->user_transform_channels)
|
||||
info_ptr->channels = png_ptr->user_transform_channels;
|
||||
}
|
||||
#endif
|
||||
|
||||
info_ptr->pixel_depth = (png_byte)(info_ptr->channels *
|
||||
info_ptr->bit_depth);
|
||||
info_ptr->rowbytes = ((info_ptr->width * info_ptr->pixel_depth + 7) >> 3);
|
||||
@ -1223,6 +1271,7 @@ From Andreas Dilger e-mail to png-implement, 26 March 1998:
|
||||
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
|
||||
if (png_ptr->transformations & PNG_USER_TRANSFORM)
|
||||
{
|
||||
if(png_ptr->read_user_transform_fn != NULL)
|
||||
(*(png_ptr->read_user_transform_fn)) /* user read transform function */
|
||||
(png_ptr, /* png_ptr */
|
||||
@ -1234,6 +1283,15 @@ From Andreas Dilger e-mail to png-implement, 26 March 1998:
|
||||
/* png_byte channels; number of channels (1-4) */
|
||||
/* png_byte pixel_depth; bits per pixel (depth*channels) */
|
||||
png_ptr->row_buf + 1); /* start of pixel data for row */
|
||||
if(png_ptr->user_transform_depth)
|
||||
png_ptr->row_info.bit_depth = png_ptr->user_transform_depth;
|
||||
if(png_ptr->user_transform_channels)
|
||||
png_ptr->row_info.channels = png_ptr->user_transform_channels;
|
||||
png_ptr->row_info.pixel_depth = (png_byte)(png_ptr->row_info.bit_depth *
|
||||
png_ptr->row_info.channels);
|
||||
png_ptr->row_info.rowbytes = (png_ptr->row_info.width *
|
||||
png_ptr->row_info.pixel_depth+7)>>3;
|
||||
}
|
||||
#endif
|
||||
|
||||
}
|
||||
@ -1737,7 +1795,7 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
|
||||
*(--dp) = lo_filler;
|
||||
row_info->channels = 2;
|
||||
row_info->pixel_depth = 32;
|
||||
row_info->rowbytes = row_width * 2;
|
||||
row_info->rowbytes = row_width * 4;
|
||||
}
|
||||
/* This changes the data from GG to XXGG */
|
||||
else
|
||||
@ -1752,8 +1810,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
|
||||
*(--dp) = lo_filler;
|
||||
}
|
||||
row_info->channels = 2;
|
||||
row_info->pixel_depth = 16;
|
||||
row_info->rowbytes = row_width * 2;
|
||||
row_info->pixel_depth = 32;
|
||||
row_info->rowbytes = row_width * 4;
|
||||
}
|
||||
}
|
||||
} /* COLOR_TYPE == GRAY */
|
||||
@ -1817,7 +1875,7 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
|
||||
*(--dp) = lo_filler;
|
||||
row_info->channels = 4;
|
||||
row_info->pixel_depth = 64;
|
||||
row_info->rowbytes = row_width * 4;
|
||||
row_info->rowbytes = row_width * 8;
|
||||
}
|
||||
/* This changes the data from RRGGBB to XXRRGGBB */
|
||||
else
|
||||
@ -1837,7 +1895,7 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
|
||||
}
|
||||
row_info->channels = 4;
|
||||
row_info->pixel_depth = 64;
|
||||
row_info->rowbytes = row_width * 4;
|
||||
row_info->rowbytes = row_width * 8;
|
||||
}
|
||||
}
|
||||
} /* COLOR_TYPE == RGB */
|
||||
@ -1869,8 +1927,7 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
|
||||
{
|
||||
*(dp--) = *sp;
|
||||
*(dp--) = *sp;
|
||||
*(dp--) = *sp;
|
||||
sp--;
|
||||
*(dp--) = *(sp--);
|
||||
}
|
||||
}
|
||||
else
|
||||
@ -1883,10 +1940,8 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
|
||||
*(dp--) = *(sp - 1);
|
||||
*(dp--) = *sp;
|
||||
*(dp--) = *(sp - 1);
|
||||
*(dp--) = *sp;
|
||||
*(dp--) = *(sp - 1);
|
||||
sp--;
|
||||
sp--;
|
||||
*(dp--) = *(sp--);
|
||||
*(dp--) = *(sp--);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1901,8 +1956,7 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
|
||||
*(dp--) = *(sp--);
|
||||
*(dp--) = *sp;
|
||||
*(dp--) = *sp;
|
||||
*(dp--) = *sp;
|
||||
sp--;
|
||||
*(dp--) = *(sp--);
|
||||
}
|
||||
}
|
||||
else
|
||||
@ -1917,10 +1971,8 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
|
||||
*(dp--) = *(sp - 1);
|
||||
*(dp--) = *sp;
|
||||
*(dp--) = *(sp - 1);
|
||||
*(dp--) = *sp;
|
||||
*(dp--) = *(sp - 1);
|
||||
sp--;
|
||||
sp--;
|
||||
*(dp--) = *(sp--);
|
||||
*(dp--) = *(sp--);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
58
pngrutil.c
58
pngrutil.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngrutil.c - utilities to read a PNG file
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.3b - August 26, 1999
|
||||
* 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
|
||||
@ -14,6 +14,10 @@
|
||||
#define PNG_INTERNAL
|
||||
#include "png.h"
|
||||
|
||||
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
|
||||
#include "pngasmrd.h"
|
||||
#endif
|
||||
|
||||
#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
|
||||
/* Grab an unsigned 32-bit integer from a buffer in big-endian format. */
|
||||
png_uint_32
|
||||
@ -165,8 +169,8 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
|
||||
interlace_type = buf[12];
|
||||
|
||||
/* check for width and height valid values */
|
||||
if (width == 0 || width > (png_uint_32)2147483647L || height == 0 ||
|
||||
height > (png_uint_32)2147483647L)
|
||||
if (width == 0 || width > PNG_MAX_UINT || height == 0 ||
|
||||
height > PNG_MAX_UINT)
|
||||
png_error(png_ptr, "Invalid image size in IHDR");
|
||||
|
||||
/* check other values */
|
||||
@ -178,7 +182,7 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
|
||||
color_type == 5 || color_type > 6)
|
||||
png_error(png_ptr, "Invalid color type in IHDR");
|
||||
|
||||
if ((color_type == PNG_COLOR_TYPE_PALETTE && bit_depth) > 8 ||
|
||||
if (((color_type == PNG_COLOR_TYPE_PALETTE) && bit_depth > 8) ||
|
||||
((color_type == PNG_COLOR_TYPE_RGB ||
|
||||
color_type == PNG_COLOR_TYPE_GRAY_ALPHA ||
|
||||
color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8))
|
||||
@ -420,7 +424,7 @@ png_handle_gAMA(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
|
||||
|
||||
#if defined(PNG_READ_sRGB_SUPPORTED)
|
||||
if (info_ptr->valid & PNG_INFO_sRGB)
|
||||
if(igamma != (png_uint_32)45000L)
|
||||
if(fabs((float)igamma - 45455.)>500.)
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Ignoring incorrect gAMA value when sRGB is also present");
|
||||
@ -692,7 +696,7 @@ png_handle_sRGB(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
|
||||
|
||||
#if defined(PNG_READ_gAMA_SUPPORTED) && defined(PNG_READ_GAMMA_SUPPORTED)
|
||||
if ((info_ptr->valid & PNG_INFO_gAMA))
|
||||
if((png_uint_32)(png_ptr->gamma*(float)100000.+.5) != (png_uint_32)45000L)
|
||||
if(fabs((png_ptr->gamma*(float)100000.+.5)-45455.) > 500.)
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Ignoring incorrect gAMA value when sRGB is also present");
|
||||
@ -871,9 +875,21 @@ png_handle_bKGD(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
|
||||
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
|
||||
{
|
||||
png_ptr->background.index = buf[0];
|
||||
png_ptr->background.red = (png_uint_16)png_ptr->palette[buf[0]].red;
|
||||
png_ptr->background.green = (png_uint_16)png_ptr->palette[buf[0]].green;
|
||||
png_ptr->background.blue = (png_uint_16)png_ptr->palette[buf[0]].blue;
|
||||
if(info_ptr->num_palette)
|
||||
{
|
||||
if(buf[0] > info_ptr->num_palette)
|
||||
{
|
||||
png_warning(png_ptr, "Incorrect bKGD chunk index value");
|
||||
png_crc_finish(png_ptr, length);
|
||||
return;
|
||||
}
|
||||
png_ptr->background.red =
|
||||
(png_uint_16)png_ptr->palette[buf[0]].red;
|
||||
png_ptr->background.green =
|
||||
(png_uint_16)png_ptr->palette[buf[0]].green;
|
||||
png_ptr->background.blue =
|
||||
(png_uint_16)png_ptr->palette[buf[0]].blue;
|
||||
}
|
||||
}
|
||||
else if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) /* GRAY */
|
||||
{
|
||||
@ -1480,8 +1496,12 @@ png_check_chunk_name(png_structp png_ptr, png_bytep chunk_name)
|
||||
to any alpha or transparency value associated with the pixel. If
|
||||
you want all pixels to be combined, pass 0xff (255) in mask. */
|
||||
void
|
||||
png_combine_row(png_structp png_ptr, png_bytep row,
|
||||
int mask)
|
||||
#ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW
|
||||
png_combine_row_c
|
||||
#else
|
||||
png_combine_row
|
||||
#endif /* PNG_HAVE_ASSEMBLER_COMBINE_ROW */
|
||||
(png_structp png_ptr, png_bytep row, int mask)
|
||||
{
|
||||
png_debug(1,"in png_combine_row\n");
|
||||
if (mask == 0xff)
|
||||
@ -1684,7 +1704,12 @@ png_combine_row(png_structp png_ptr, png_bytep row,
|
||||
|
||||
#if defined(PNG_READ_INTERLACING_SUPPORTED)
|
||||
void
|
||||
png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
|
||||
#ifdef PNG_HAVE_ASSEMBLER_READ_INTERLACE
|
||||
png_do_read_interlace_c
|
||||
#else
|
||||
png_do_read_interlace
|
||||
#endif /* PNG_HAVE_ASSEMBLER_READ_INTERLACE */
|
||||
(png_row_infop row_info, png_bytep row, int pass,
|
||||
png_uint_32 transformations)
|
||||
{
|
||||
png_debug(1,"in png_do_read_interlace\n");
|
||||
@ -1894,13 +1919,16 @@ png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
|
||||
#endif
|
||||
|
||||
void
|
||||
png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep row,
|
||||
#ifdef PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
|
||||
png_read_filter_row_c
|
||||
#else
|
||||
png_read_filter_row
|
||||
#endif /* PNG_HAVE_ASSEMBLER_READ_FILTER_ROW */
|
||||
(png_structp png_ptr, png_row_infop row_info, png_bytep row,
|
||||
png_bytep prev_row, int filter)
|
||||
{
|
||||
png_debug(1, "in png_read_filter_row\n");
|
||||
png_debug2(2,"row = %d, filter = %d\n", png_ptr->row_number, filter);
|
||||
|
||||
|
||||
switch (filter)
|
||||
{
|
||||
case PNG_FILTER_VALUE_NONE:
|
||||
|
||||
17
pngset.c
17
pngset.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngset.c - storage of image information into info struct
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -107,7 +107,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
|
||||
|
||||
/* check for overflow */
|
||||
rowbytes_per_pixel = (info_ptr->pixel_depth + 7) >> 3;
|
||||
if (( width > (png_uint_32)2147483647L/rowbytes_per_pixel))
|
||||
if (( width > PNG_MAX_UINT/rowbytes_per_pixel))
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Width too large to process image data; rowbytes will overflow.");
|
||||
@ -344,7 +344,8 @@ void
|
||||
png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time)
|
||||
{
|
||||
png_debug1(1, "in %s storage function\n", "tIME");
|
||||
if (png_ptr == NULL || info_ptr == NULL)
|
||||
if (png_ptr == NULL || info_ptr == NULL ||
|
||||
(png_ptr->flags & PNG_FLAG_WROTE_tIME))
|
||||
return;
|
||||
|
||||
png_memcpy(&(info_ptr->mod_time), mod_time, sizeof (png_time));
|
||||
@ -378,3 +379,13 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED)
|
||||
void
|
||||
png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted)
|
||||
{
|
||||
png_debug1(1, "in png_permit_empty_plte\n", "");
|
||||
if (png_ptr == NULL)
|
||||
return;
|
||||
png_ptr->empty_plte_permitted=(png_byte)empty_plte_permitted;
|
||||
}
|
||||
#endif
|
||||
|
||||
54
pngtest.c
54
pngtest.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngtest.c - a simple test program to test libpng
|
||||
*
|
||||
* libpng 1.0.3 -January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -42,6 +42,8 @@ static int tIME_chunk_present=0;
|
||||
static char tIME_string[30] = "no tIME chunk present in file";
|
||||
#endif /* PNG_TIME_RFC1123_SUPPORTED */
|
||||
|
||||
static int verbose = 0;
|
||||
|
||||
int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname));
|
||||
|
||||
#ifdef __TURBOC__
|
||||
@ -60,12 +62,12 @@ static int status_dots=1;
|
||||
void
|
||||
read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
|
||||
{
|
||||
if(png_ptr == NULL || row_number > 0x3fffffffL) return;
|
||||
if(png_ptr == NULL || row_number > PNG_MAX_UINT) return;
|
||||
if(status_pass != pass)
|
||||
{
|
||||
fprintf(stdout,"\n Pass %d: ",pass);
|
||||
status_pass = pass;
|
||||
status_dots = 30;
|
||||
status_dots = 31;
|
||||
}
|
||||
status_dots--;
|
||||
if(status_dots == 0)
|
||||
@ -79,11 +81,24 @@ read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
|
||||
void
|
||||
write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
|
||||
{
|
||||
if(png_ptr == NULL || row_number > 0x3fffffffL || pass > 7) return;
|
||||
if(png_ptr == NULL || row_number > PNG_MAX_UINT || pass > 7) return;
|
||||
fprintf(stdout, "w");
|
||||
}
|
||||
|
||||
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
|
||||
/* Example of using user transform callback (we don't transform anything,
|
||||
but merely examine the row filters. We set this to 256 rather than
|
||||
5 in case illegal filter values are present.) */
|
||||
static png_uint_32 filters_used[256];
|
||||
void
|
||||
count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data)
|
||||
{
|
||||
if(png_ptr != NULL && row_info != NULL)
|
||||
++filters_used[*(data-1)];
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
||||
/* example of using user transform callback (we don't transform anything,
|
||||
but merely count the zero samples) */
|
||||
@ -105,6 +120,7 @@ count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
|
||||
* png_byte pixel_depth bits per pixel (depth*channels)
|
||||
*/
|
||||
|
||||
|
||||
/* counts the number of zero samples (or zero pixels if color_type is 3 */
|
||||
|
||||
if(row_info->color_type == 0 || row_info->color_type == 3)
|
||||
@ -178,7 +194,6 @@ count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
|
||||
}
|
||||
#endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */
|
||||
|
||||
static int verbose = 0;
|
||||
static int wrote_question = 0;
|
||||
|
||||
#if defined(PNG_NO_STDIO)
|
||||
@ -584,6 +599,14 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
png_set_read_status_fn(read_ptr, NULL);
|
||||
}
|
||||
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
|
||||
{
|
||||
int i;
|
||||
for(i=0; i<256; i++)
|
||||
filters_used[i]=0;
|
||||
png_set_read_user_transform_fn(read_ptr, count_filters);
|
||||
}
|
||||
#endif
|
||||
#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
||||
zero_samples=0;
|
||||
png_set_write_user_transform_fn(write_ptr, count_zero_samples);
|
||||
@ -859,7 +882,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
|
||||
if (png_memcmp(inbuf, outbuf, num_in))
|
||||
{
|
||||
fprintf(STDERR, "Files %s and %s are different\n", inname, outname);
|
||||
fprintf(STDERR, "\nFiles %s and %s are different\n", inname, outname);
|
||||
if(wrote_question == 0)
|
||||
{
|
||||
fprintf(STDERR,
|
||||
@ -885,8 +908,8 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
|
||||
|
||||
/* input and output filenames */
|
||||
#ifdef RISCOS
|
||||
PNG_CONST char *inname = "pngtest/png";
|
||||
PNG_CONST char *outname = "pngout/png";
|
||||
static PNG_CONST char *inname = "pngtest/png";
|
||||
static PNG_CONST char *outname = "pngout/png";
|
||||
#else
|
||||
static PNG_CONST char *inname = "pngtest.png";
|
||||
static PNG_CONST char *outname = "pngout.png";
|
||||
@ -973,7 +996,7 @@ main(int argc, char *argv[])
|
||||
#endif
|
||||
for (i=2; i<argc; ++i)
|
||||
{
|
||||
int kerror;
|
||||
int k, kerror;
|
||||
fprintf(STDERR, "Testing %s:",argv[i]);
|
||||
kerror = test_one_file(argv[i], outname);
|
||||
if (kerror == 0)
|
||||
@ -983,6 +1006,12 @@ main(int argc, char *argv[])
|
||||
#else
|
||||
fprintf(STDERR, " PASS\n");
|
||||
#endif
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
|
||||
for (k=0; k<256; k++)
|
||||
if(filters_used[k])
|
||||
fprintf(STDERR, " Filter %d was used %lu times\n",
|
||||
k,filters_used[k]);
|
||||
#endif
|
||||
#if defined(PNG_TIME_RFC1123_SUPPORTED)
|
||||
if(tIME_chunk_present != 0)
|
||||
fprintf(STDERR, " tIME = %s\n",tIME_string);
|
||||
@ -1032,11 +1061,18 @@ main(int argc, char *argv[])
|
||||
{
|
||||
if(verbose == 1 || i == 2)
|
||||
{
|
||||
int k;
|
||||
#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
||||
fprintf(STDERR, " PASS (%lu zero samples)\n",zero_samples);
|
||||
#else
|
||||
fprintf(STDERR, " PASS\n");
|
||||
#endif
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
|
||||
for (k=0; k<256; k++)
|
||||
if(filters_used[k])
|
||||
fprintf(STDERR, " Filter %d was used %lu times\n",
|
||||
k,filters_used[k]);
|
||||
#endif
|
||||
#if defined(PNG_TIME_RFC1123_SUPPORTED)
|
||||
if(tIME_chunk_present != 0)
|
||||
fprintf(STDERR, " tIME = %s\n",tIME_string);
|
||||
|
||||
25
pngtrans.c
25
pngtrans.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -570,3 +570,26 @@ png_do_bgr(png_row_infop row_info, png_bytep row)
|
||||
}
|
||||
#endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */
|
||||
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
|
||||
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
||||
void
|
||||
png_set_user_transform_info(png_structp png_ptr, png_voidp
|
||||
user_transform_ptr, int user_transform_depth, int user_transform_channels)
|
||||
{
|
||||
png_debug(1, "in png_set_user_transform_info\n");
|
||||
png_ptr->user_transform_ptr = user_transform_ptr;
|
||||
png_ptr->user_transform_depth = user_transform_depth;
|
||||
png_ptr->user_transform_channels = user_transform_channels;
|
||||
}
|
||||
|
||||
/* This function returns a pointer to the user_transform_ptr associated with
|
||||
* the user transform functions. The application should free any memory
|
||||
* associated with this pointer before png_write_destroy and png_read_destroy
|
||||
* are called.
|
||||
*/
|
||||
png_voidp
|
||||
png_get_user_transform_ptr(png_structp png_ptr)
|
||||
{
|
||||
return ((png_voidp)png_ptr->user_transform_ptr);
|
||||
}
|
||||
#endif
|
||||
|
||||
2
pngwio.c
2
pngwio.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngwio.c - functions for data output
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngwrite.c - general routines to write a PNG file
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -971,6 +971,8 @@ png_set_compression_window_bits(png_structp png_ptr, int window_bits)
|
||||
{
|
||||
if (window_bits > 15)
|
||||
png_warning(png_ptr, "Only compression windows <= 32k supported by PNG");
|
||||
else if (window_bits < 8)
|
||||
png_warning(png_ptr, "Only compression windows >= 256 supported by PNG");
|
||||
png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS;
|
||||
png_ptr->zlib_window_bits = window_bits;
|
||||
}
|
||||
@ -1001,4 +1003,3 @@ png_set_write_user_transform_fn(png_structp png_ptr, png_user_transform_ptr
|
||||
png_ptr->write_user_transform_fn = write_user_transform_fn;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngwtran.c - transforms the data in a row for PNG writers
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
|
||||
20
pngwutil.c
20
pngwutil.c
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngwutil.c - utilities to write a PNG file
|
||||
*
|
||||
* libpng 1.0.3 - January 14, 1999
|
||||
* libpng 1.0.4 - September 17, 1999
|
||||
* 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
|
||||
@ -284,7 +284,11 @@ png_write_PLTE(png_structp png_ptr, png_colorp palette, png_uint_32 num_pal)
|
||||
png_byte buf[3];
|
||||
|
||||
png_debug(1, "in png_write_PLTE\n");
|
||||
if (num_pal == 0 || num_pal > 256)
|
||||
if ((
|
||||
#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED
|
||||
!png_ptr->empty_plte_permitted &&
|
||||
#endif
|
||||
num_pal == 0) || num_pal > 256)
|
||||
{
|
||||
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
|
||||
{
|
||||
@ -524,7 +528,12 @@ png_write_bKGD(png_structp png_ptr, png_color_16p back, int color_type)
|
||||
png_debug(1, "in png_write_bKGD\n");
|
||||
if (color_type == PNG_COLOR_TYPE_PALETTE)
|
||||
{
|
||||
if (back->index > png_ptr->num_palette)
|
||||
if (
|
||||
#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED
|
||||
(!png_ptr->empty_plte_permitted ||
|
||||
(png_ptr->empty_plte_permitted && png_ptr->num_palette)) &&
|
||||
#endif
|
||||
back->index > png_ptr->num_palette)
|
||||
{
|
||||
png_warning(png_ptr, "Invalid background palette index");
|
||||
return;
|
||||
@ -713,6 +722,11 @@ png_write_tEXt(png_structp png_ptr, png_charp key, png_charp text,
|
||||
|
||||
/* make sure we include the 0 after the key */
|
||||
png_write_chunk_start(png_ptr, png_tEXt, (png_uint_32)key_len+text_len+1);
|
||||
/*
|
||||
* We leave it to the application to meet PNG-1.0 requirements on the
|
||||
* contents of the text. PNG-1.0 through PNG-1.2 discourage the use of
|
||||
* any non-Latin-1 characters except for NEWLINE. ISO PNG will forbid them.
|
||||
*/
|
||||
png_write_chunk_data(png_ptr, (png_bytep)new_key, key_len + 1);
|
||||
if (text_len)
|
||||
png_write_chunk_data(png_ptr, (png_bytep)text, text_len);
|
||||
|
||||
104
scripts/makefile.beo
Normal file
104
scripts/makefile.beo
Normal file
@ -0,0 +1,104 @@
|
||||
# makefile for libpng on BeOS x86 ELF with gcc
|
||||
# modified from makefile.lnx by Sander Stoks
|
||||
# Copyright (C) 1996, 1997 Andreas Dilger
|
||||
# Copyright (C) 1999 Greg Roelofs
|
||||
# For conditions of distribution and use, see copyright notice in png.h
|
||||
|
||||
CC=gcc
|
||||
|
||||
# Where the zlib library and include files are located
|
||||
ZLIBLIB=/usr/local/lib
|
||||
ZLIBINC=/usr/local/include
|
||||
|
||||
ALIGN=
|
||||
# For I-386:
|
||||
# ALIGN=-malign-loops=2 -malign-functions=2
|
||||
|
||||
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
|
||||
-Wmissing-declarations -Wtraditional -Wcast-align \
|
||||
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
|
||||
|
||||
# On BeOS, -O1 is actually better than -O3. This is a known bug but it's
|
||||
# still here in R4.5
|
||||
CFLAGS=-I$(ZLIBINC) -Wall -O1 -funroll-loops \
|
||||
$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
|
||||
# LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz -lm
|
||||
LDFLAGS=-L. -Wl,-soname=libpng.so.$(PNGMAJ) -L$(ZLIBLIB) -lz -lm
|
||||
|
||||
RANLIB=ranlib
|
||||
#RANLIB=echo
|
||||
|
||||
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not
|
||||
# have to change it.
|
||||
PNGMAJ = 2
|
||||
PNGMIN = 1.0.3
|
||||
PNGVER = $(PNGMAJ).$(PNGMIN)
|
||||
|
||||
# where make install puts libpng.a, libpng.so*, and png.h
|
||||
prefix=/usr/local
|
||||
INCPATH=$(prefix)/include
|
||||
LIBPATH=$(prefix)/lib
|
||||
|
||||
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
|
||||
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
|
||||
pngwtran.o pngmem.o pngerror.o pngpread.o
|
||||
|
||||
OBJSDLL = $(OBJS)
|
||||
|
||||
.SUFFIXES: .c .o
|
||||
|
||||
all: libpng.a libpng.so pngtest
|
||||
|
||||
libpng.a: $(OBJS)
|
||||
ar rc $@ $(OBJS)
|
||||
$(RANLIB) $@
|
||||
|
||||
libpng.so: libpng.so.$(PNGMAJ)
|
||||
ln -sf libpng.so.$(PNGMAJ) libpng.so
|
||||
cp libpng.so* /boot/home/config/lib
|
||||
|
||||
libpng.so.$(PNGMAJ): libpng.so.$(PNGVER)
|
||||
ln -sf libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
|
||||
|
||||
libpng.so.$(PNGVER): $(OBJSDLL)
|
||||
$(CC) -L$(ZLIBLIB) -lz -nostart -Wl,-soname,libpng.so.$(PNGMAJ) -o
|
||||
libpng.so.$(PNGVER) \
|
||||
$(OBJSDLL)
|
||||
|
||||
pngtest: pngtest.o libpng.so
|
||||
$(CC) -L$(ZLIBLIB) -lz -lpng -o pngtest pngtest.o
|
||||
|
||||
test: pngtest
|
||||
./pngtest
|
||||
|
||||
install: libpng.a libpng.so.$(PNGVER)
|
||||
-@mkdir $(INCPATH) $(LIBPATH)
|
||||
cp png.h pngconf.h $(INCPATH)
|
||||
chmod 644 $(INCPATH)/png.h $(INCPATH)/pngconf.h
|
||||
cp libpng.a libpng.so.$(PNGVER) $(LIBPATH)
|
||||
chmod 755 $(LIBPATH)/libpng.so.$(PNGVER)
|
||||
-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
|
||||
(cd $(LIBPATH); ln -sf libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
|
||||
ln -sf libpng.so.$(PNGMAJ) libpng.so)
|
||||
|
||||
clean:
|
||||
/bin/rm -f *.o libpng.a libpng.so* pngtest pngout.png
|
||||
|
||||
# DO NOT DELETE THIS LINE -- make depend depends on it.
|
||||
|
||||
png.o png.pic.o: png.h pngconf.h
|
||||
pngerror.o pngerror.pic.o: png.h pngconf.h
|
||||
pngrio.o pngrio.pic.o: png.h pngconf.h
|
||||
pngwio.o pngwio.pic.o: png.h pngconf.h
|
||||
pngmem.o pngmem.pic.o: png.h pngconf.h
|
||||
pngset.o pngset.pic.o: png.h pngconf.h
|
||||
pngget.o pngget.pic.o: png.h pngconf.h
|
||||
pngread.o pngread.pic.o: png.h pngconf.h
|
||||
pngrtran.o pngrtran.pic.o: png.h pngconf.h
|
||||
pngrutil.o pngrutil.pic.o: png.h pngconf.h
|
||||
pngtrans.o pngtrans.pic.o: png.h pngconf.h
|
||||
pngwrite.o pngwrite.pic.o: png.h pngconf.h
|
||||
pngwtran.o pngwtran.pic.o: png.h pngconf.h
|
||||
pngwutil.o pngwutil.pic.o: png.h pngconf.h
|
||||
pngpread.o pngpread.pic.o: png.h pngconf.h
|
||||
pngtest.o: png.h pngconf.h
|
||||
@ -14,7 +14,7 @@ ZLIBINC=../zlib
|
||||
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not
|
||||
# have to change it.
|
||||
PNGMAJ = 2
|
||||
PNGMIN = 1.0.3
|
||||
PNGMIN = 1.0.4
|
||||
PNGVER = $(PNGMAJ).$(PNGMIN)
|
||||
|
||||
CC=cc
|
||||
@ -36,10 +36,10 @@ libpng.a: $(OBJS)
|
||||
$(RANLIB) $@
|
||||
|
||||
libpng.so: libpng.so.$(PNGMAJ)
|
||||
ln -s -f libpng.so.$(PNGMAJ) libpng.so
|
||||
ln -f -s libpng.so.$(PNGMAJ) libpng.so
|
||||
|
||||
libpng.so.$(PNGMAJ): libpng.so.$(PNGVER)
|
||||
ln -s -f libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
|
||||
ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
|
||||
|
||||
libpng.so.$(PNGVER): $(OBJS)
|
||||
$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) -lz -lm
|
||||
@ -62,8 +62,8 @@ install: libpng.a libpng.so.$(PNGVER)
|
||||
chmod 644 $(prefix)/lib/libpng.a
|
||||
chmod 644 $(prefix)/lib/libpng.so.$(PNGVER)
|
||||
-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
|
||||
(cd $(LIBPATH); ln -s -f libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
|
||||
ln -s -f libpng.so.$(PNGMAJ) libpng.so)
|
||||
(cd $(LIBPATH); ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
|
||||
ln -f -s libpng.so.$(PNGMAJ) libpng.so)
|
||||
|
||||
clean:
|
||||
rm -f *.o libpng.a pngtest pngout.png libpng.so*
|
||||
|
||||
@ -1,4 +1,3 @@
|
||||
===========================================================================
|
||||
# makefile for libpng, HPUX (10.20 and 11.00)
|
||||
# Copyright (C) 1995 Guy Eric Schalnat, Group 42
|
||||
# Copyright (C) 1999 Glenn Randers-Pehrson
|
||||
@ -17,7 +16,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
|
||||
RANLIB=ranlib
|
||||
|
||||
# where make install puts libpng.a and png.h
|
||||
prefix=/opt/libpng/
|
||||
prefix=/opt/libpng
|
||||
|
||||
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
|
||||
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
|
||||
|
||||
@ -2,6 +2,11 @@
|
||||
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
|
||||
# For conditions of distribution and use, see copyright notice in png.h
|
||||
|
||||
# This makefile requires file file ansi2knr.c, which you can get
|
||||
# from the Ghostscript ftp site at ftp://ftp.cs.wisc.edu/ghost/
|
||||
# If you have libjpeg, you probably already have ansi2knr.c in the jpeg
|
||||
# source distribution.
|
||||
|
||||
# where make install puts libpng.a and png.h
|
||||
prefix=/usr/local
|
||||
|
||||
|
||||
@ -32,7 +32,7 @@ RANLIB=ranlib
|
||||
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not
|
||||
# have to change it.
|
||||
PNGMAJ = 2
|
||||
PNGMIN = 1.0.3
|
||||
PNGMIN = 1.0.4
|
||||
PNGVER = $(PNGMAJ).$(PNGMIN)
|
||||
|
||||
INCPATH=$(prefix)/include
|
||||
@ -56,10 +56,10 @@ libpng.a: $(OBJS)
|
||||
$(RANLIB) $@
|
||||
|
||||
libpng.so: libpng.so.$(PNGMAJ)
|
||||
ln -s -f libpng.so.$(PNGMAJ) libpng.so
|
||||
ln -f -s libpng.so.$(PNGMAJ) libpng.so
|
||||
|
||||
libpng.so.$(PNGMAJ): libpng.so.$(PNGVER)
|
||||
ln -s -f libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
|
||||
ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
|
||||
|
||||
libpng.so.$(PNGVER): $(OBJSDLL)
|
||||
$(CC) -shared -Wl,-soname,libpng.so.$(PNGMAJ) -o libpng.so.$(PNGVER) \
|
||||
@ -78,8 +78,8 @@ install: libpng.a libpng.so.$(PNGVER)
|
||||
cp libpng.a libpng.so.$(PNGVER) $(LIBPATH)
|
||||
chmod 755 $(LIBPATH)/libpng.so.$(PNGVER)
|
||||
-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
|
||||
(cd $(LIBPATH); ln -s -f libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
|
||||
ln -s -f libpng.so.$(PNGMAJ) libpng.so)
|
||||
(cd $(LIBPATH); ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
|
||||
ln -f -s libpng.so.$(PNGMAJ) libpng.so)
|
||||
|
||||
clean:
|
||||
/bin/rm -f *.o libpng.a libpng.so* pngtest pngout.png
|
||||
|
||||
@ -6,7 +6,12 @@
|
||||
|
||||
CC=gcc
|
||||
|
||||
# where make install puts libpng.a, libpng.so*, and png.h
|
||||
# The commands "CC" and "LD" must NOT refer to /usr/ucb/cc and /usr/ucb/ld.
|
||||
# If they do, you need to adjust your PATH environment variable.
|
||||
# The environment variable LD_LIBRARY_PATH should not be set at all. If
|
||||
# it is, things are likely to break.
|
||||
|
||||
# Where make install puts libpng.a, libpng.so*, and png.h
|
||||
prefix=/usr/local
|
||||
|
||||
# Where the zlib library and include files are located
|
||||
@ -31,7 +36,7 @@ RANLIB=echo
|
||||
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not
|
||||
# have to change it.
|
||||
PNGMAJ = 2
|
||||
PNGMIN = 1.0.3
|
||||
PNGMIN = 1.0.4
|
||||
PNGVER = $(PNGMAJ).$(PNGMIN)
|
||||
|
||||
INCPATH=$(prefix)/include
|
||||
@ -55,10 +60,10 @@ libpng.a: $(OBJS)
|
||||
$(RANLIB) $@
|
||||
|
||||
libpng.so: libpng.so.$(PNGMAJ)
|
||||
ln -s -f libpng.so.$(PNGMAJ) libpng.so
|
||||
ln -f -s libpng.so.$(PNGMAJ) libpng.so
|
||||
|
||||
libpng.so.$(PNGMAJ): libpng.so.$(PNGVER)
|
||||
ln -s -f libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
|
||||
ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
|
||||
|
||||
libpng.so.$(PNGVER): $(OBJSDLL)
|
||||
$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h libpng.so.$(PNGMAJ) \
|
||||
@ -77,8 +82,8 @@ install: libpng.a libpng.so.$(PNGVER)
|
||||
cp libpng.a libpng.so.$(PNGVER) $(LIBPATH)
|
||||
chmod 755 $(LIBPATH)/libpng.so.$(PNGVER)
|
||||
-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
|
||||
(cd $(LIBPATH); ln -s -f libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
|
||||
ln -s -f libpng.so.$(PNGMAJ) libpng.so)
|
||||
(cd $(LIBPATH); ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
|
||||
ln -f -s libpng.so.$(PNGMAJ) libpng.so)
|
||||
|
||||
clean:
|
||||
/bin/rm -f *.o libpng.a libpng.so* pngtest pngout.png
|
||||
|
||||
@ -25,7 +25,7 @@ RANLIB=echo
|
||||
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not
|
||||
# have to change it.
|
||||
PNGMAJ = 2
|
||||
PNGMIN = 1.0.3
|
||||
PNGMIN = 1.0.4
|
||||
PNGVER = $(PNGMAJ).$(PNGMIN)
|
||||
|
||||
INCPATH=$(prefix)/include
|
||||
@ -49,10 +49,10 @@ libpng.a: $(OBJS)
|
||||
$(RANLIB) $@
|
||||
|
||||
libpng.so: libpng.so.$(PNGMAJ)
|
||||
ln -s -f libpng.so.$(PNGMAJ) libpng.so
|
||||
ln -f -s libpng.so.$(PNGMAJ) libpng.so
|
||||
|
||||
libpng.so.$(PNGMAJ): libpng.so.$(PNGVER)
|
||||
ln -s -f libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
|
||||
ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
|
||||
|
||||
libpng.so.$(PNGVER): $(OBJSDLL)
|
||||
$(CC) -G -Wl,-h,libpng.so.$(PNGMAJ) -o libpng.so.$(PNGVER) \
|
||||
@ -71,8 +71,8 @@ install: libpng.a libpng.so.$(PNGVER)
|
||||
cp libpng.a libpng.so.$(PNGVER) $(LIBPATH)
|
||||
chmod 755 $(LIBPATH)/libpng.so.$(PNGVER)
|
||||
-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
|
||||
(cd $(LIBPATH); ln -s -f libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
|
||||
ln -s -f libpng.so.$(PNGMAJ) libpng.so)
|
||||
(cd $(LIBPATH); ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
|
||||
ln -f -s libpng.so.$(PNGMAJ) libpng.so)
|
||||
|
||||
clean:
|
||||
/bin/rm -f *.o libpng.a libpng.so* pngtest pngout.png
|
||||
|
||||
@ -14,6 +14,7 @@ ZLIBINC=../zlib
|
||||
CC=cc
|
||||
|
||||
WARNMORE=-fullwarn
|
||||
# You can add the -n32 option; then zlib must also be compiled with -n32
|
||||
CFLAGS=-I$(ZLIBINC) -O $(WARNMORE) # -g -DPNG_DEBUG=5
|
||||
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
|
||||
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
|
||||
# ------------- Microsoft Visual C++ 4.0 and later -------------
|
||||
MODEL=-
|
||||
CFLAGS=-Ox -GA3s -nologo -W3 -I..\zlib
|
||||
CFLAGS=-DPNG_USE_PNGVCRD -Ox -GA3s -nologo -W3 -I..\zlib
|
||||
|
||||
CC=cl
|
||||
LD=link
|
||||
@ -19,7 +19,7 @@ O=.obj
|
||||
# variables
|
||||
OBJS1 = png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)
|
||||
OBJS2 = pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)
|
||||
OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
|
||||
OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O) pngvcrd$(O)
|
||||
|
||||
all: libpng.lib
|
||||
|
||||
@ -41,7 +41,10 @@ pngpread$(O): png.h pngconf.h
|
||||
pngrtran$(O): png.h pngconf.h
|
||||
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
|
||||
|
||||
pngrutil$(O): png.h pngconf.h
|
||||
pngrutil$(O): png.h pngconf.h pngasmrd.h
|
||||
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
|
||||
|
||||
pngvcrd$(O): png.h pngconf.h pngasmrd.h
|
||||
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
|
||||
|
||||
pngerror$(O): png.h pngconf.h
|
||||
|
||||
@ -1,15 +1,15 @@
|
||||
# Makefile for libpng
|
||||
# Watcom 10.0a and later 32-bit protected mode flat memory model
|
||||
# Watcom 10.0 and later 32-bit protected mode flat memory model
|
||||
|
||||
# Adapted by Pawel Mrochen, based on makefile.msc
|
||||
# For conditions of distribution and use, see copyright notice in png.h
|
||||
# Assumes that zlib.lib, zconf.h, and zlib.h have been copied to ..\zlib
|
||||
|
||||
# To use, do "wmake -f makefile.wat"
|
||||
# To use, do "wmake /f scripts\makefile.wat"
|
||||
|
||||
# ------------- Watcom 10.0a and later -------------
|
||||
# ------------- Watcom 10.0 and later -------------
|
||||
MODEL=-mf
|
||||
CFLAGS= $(MODEL) -5r -fp5 -fpi87 -oneatx -zp8 -i=..\zlib
|
||||
CFLAGS= $(MODEL) -5r -fp5 -fpi87 -oneatx -i=..\zlib
|
||||
CC=wcc386
|
||||
LD=wcl386
|
||||
LIB=wlib -b -c
|
||||
@ -82,7 +82,7 @@ libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
|
||||
pngtest.exe: pngtest.obj libpng.lib
|
||||
$(LD) $(LDFLAGS) pngtest.obj libpng.lib ..\zlib\zlib.lib
|
||||
|
||||
test: pngtest.exe
|
||||
test: pngtest.exe .symbolic
|
||||
pngtest
|
||||
|
||||
# End of makefile for libpng
|
||||
|
||||
@ -3,7 +3,7 @@ unit pngdef;
|
||||
interface
|
||||
|
||||
const
|
||||
PNG_LIBPNG_VER_STRING = '1.0.3';
|
||||
PNG_LIBPNG_VER_STRING = '1.0.3b';
|
||||
PNG_LIBPNG_VER = 10001;
|
||||
|
||||
type
|
||||
@ -475,6 +475,8 @@ procedure png_set_gAMA(png_ptr: png_structp; info_ptr: png_infop;
|
||||
procedure png_set_gamma(png_ptr: png_structp; screen_gamma,
|
||||
default_file_gamma: double);
|
||||
stdcall;
|
||||
procedure png_set_gray_1_2_4_to_8(png_ptr: png_structp);
|
||||
stdcall;
|
||||
procedure png_set_gray_to_rgb(png_ptr: png_structp);
|
||||
stdcall;
|
||||
procedure png_set_hIST(png_ptr: png_structp; info_ptr: png_infop;
|
||||
@ -489,6 +491,8 @@ procedure png_set_invert_mono(png_ptr: png_structp);
|
||||
procedure png_set_oFFs(png_ptr: png_structp; info_ptr: png_infop;
|
||||
offset_x, offset_y: png_uint_32; unit_type: int);
|
||||
stdcall;
|
||||
procedure png_set_palette_to_rgb(png_ptr: png_structp);
|
||||
stdcall;
|
||||
procedure png_set_pCAL(png_ptr: png_structp; info_ptr: png_infop;
|
||||
purpose: png_charp; X0, X1: png_int_32;
|
||||
typ, nparams: int; units: png_charp;
|
||||
@ -546,6 +550,8 @@ procedure png_set_tRNS(png_ptr: png_structp; info_ptr: png_infop;
|
||||
trans: png_bytep; num_trans: int;
|
||||
trans_values: png_color_16p);
|
||||
stdcall;
|
||||
procedure png_set_tRNS_to_alpha(png_ptr: png_structp);
|
||||
stdcall;
|
||||
procedure png_set_text(png_ptr: png_structp; info_ptr: png_infop;
|
||||
text_ptr: png_textp; num_text: int);
|
||||
stdcall;
|
||||
|
||||
@ -149,6 +149,9 @@ EXPORTS
|
||||
png_set_tIME
|
||||
png_get_tRNS
|
||||
png_set_tRNS
|
||||
png_set_gray_1_2_4_to_8
|
||||
png_set_tRNS_to_alpha
|
||||
png_set_palette_to_rgb
|
||||
|
||||
png_create_struct
|
||||
png_destroy_struct
|
||||
|
||||
@ -1,169 +0,0 @@
|
||||
unit zlibdef;
|
||||
|
||||
interface
|
||||
|
||||
uses
|
||||
Windows;
|
||||
|
||||
const
|
||||
ZLIB_VERSION = '1.1.2';
|
||||
|
||||
type
|
||||
voidpf = Pointer;
|
||||
int = Integer;
|
||||
uInt = Cardinal;
|
||||
pBytef = PChar;
|
||||
uLong = Cardinal;
|
||||
|
||||
alloc_func = function(opaque: voidpf; items, size: uInt): voidpf;
|
||||
stdcall;
|
||||
free_func = procedure(opaque, address: voidpf);
|
||||
stdcall;
|
||||
|
||||
internal_state = Pointer;
|
||||
|
||||
z_streamp = ^z_stream;
|
||||
z_stream = packed record
|
||||
next_in: pBytef; // next input byte
|
||||
avail_in: uInt; // number of bytes available at next_in
|
||||
total_in: uLong; // total nb of input bytes read so far
|
||||
|
||||
next_out: pBytef; // next output byte should be put there
|
||||
avail_out: uInt; // remaining free space at next_out
|
||||
total_out: uLong; // total nb of bytes output so far
|
||||
|
||||
msg: PChar; // last error message, NULL if no error
|
||||
state: internal_state; // not visible by applications
|
||||
|
||||
zalloc: alloc_func; // used to allocate the internal state
|
||||
zfree: free_func; // used to free the internal state
|
||||
opaque: voidpf; // private data object passed to zalloc and zfree
|
||||
|
||||
data_type: int; // best guess about the data type: ascii or binary
|
||||
adler: uLong; // adler32 value of the uncompressed data
|
||||
reserved: uLong; // reserved for future use
|
||||
end;
|
||||
|
||||
const
|
||||
Z_NO_FLUSH = 0;
|
||||
Z_SYNC_FLUSH = 2;
|
||||
Z_FULL_FLUSH = 3;
|
||||
Z_FINISH = 4;
|
||||
|
||||
Z_OK = 0;
|
||||
Z_STREAM_END = 1;
|
||||
|
||||
Z_NO_COMPRESSION = 0;
|
||||
Z_BEST_SPEED = 1;
|
||||
Z_BEST_COMPRESSION = 9;
|
||||
Z_DEFAULT_COMPRESSION = -1;
|
||||
|
||||
Z_FILTERED = 1;
|
||||
Z_HUFFMAN_ONLY = 2;
|
||||
Z_DEFAULT_STRATEGY = 0;
|
||||
|
||||
Z_BINARY = 0;
|
||||
Z_ASCII = 1;
|
||||
Z_UNKNOWN = 2;
|
||||
|
||||
Z_DEFLATED = 8;
|
||||
|
||||
MAX_MEM_LEVEL = 9;
|
||||
|
||||
function adler32(adler: uLong; const buf: pBytef; len: uInt): uLong;
|
||||
stdcall;
|
||||
function crc32(crc: uLong; const buf: pBytef; len: uInt): uLong;
|
||||
stdcall;
|
||||
function deflate(strm: z_streamp; flush: int): int;
|
||||
stdcall;
|
||||
function deflateCopy(dest, source: z_streamp): int;
|
||||
stdcall;
|
||||
function deflateEnd(strm: z_streamp): int;
|
||||
stdcall;
|
||||
function deflateInit2_(strm: z_streamp; level, method,
|
||||
windowBits, memLevel, strategy: int;
|
||||
const version: PChar; stream_size: int): int;
|
||||
stdcall;
|
||||
function deflateInit_(strm: z_streamp; level: int;
|
||||
const version: PChar; stream_size: int): int;
|
||||
stdcall;
|
||||
function deflateParams(strm: z_streamp; level, strategy: int): int;
|
||||
stdcall;
|
||||
function deflateReset(strm: z_streamp): int;
|
||||
stdcall;
|
||||
function deflateSetDictionary(strm: z_streamp;
|
||||
const dictionary: pBytef;
|
||||
dictLength: uInt): int;
|
||||
stdcall;
|
||||
function inflate(strm: z_streamp; flush: int): int;
|
||||
stdcall;
|
||||
function inflateEnd(strm: z_streamp): int;
|
||||
stdcall;
|
||||
function inflateInit2_(strm: z_streamp; windowBits: int;
|
||||
const version: PChar; stream_size: int): int;
|
||||
stdcall;
|
||||
function inflateInit_(strm: z_streamp; const version: PChar;
|
||||
stream_size: int): int;
|
||||
stdcall;
|
||||
function inflateReset(strm: z_streamp): int;
|
||||
stdcall;
|
||||
function inflateSetDictionary(strm: z_streamp;
|
||||
const dictionary: pBytef;
|
||||
dictLength: uInt): int;
|
||||
stdcall;
|
||||
function inflateSync(strm: z_streamp): int;
|
||||
stdcall;
|
||||
|
||||
function deflateInit(strm: z_streamp; level: int): int;
|
||||
function deflateInit2(strm: z_streamp; level, method, windowBits,
|
||||
memLevel, strategy: int): int;
|
||||
function inflateInit(strm: z_streamp): int;
|
||||
function inflateInit2(strm: z_streamp; windowBits: int): int;
|
||||
|
||||
implementation
|
||||
|
||||
function deflateInit(strm: z_streamp; level: int): int;
|
||||
begin
|
||||
Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream));
|
||||
end;
|
||||
|
||||
function deflateInit2(strm: z_streamp; level, method, windowBits,
|
||||
memLevel, strategy: int): int;
|
||||
begin
|
||||
Result := deflateInit2_(strm, level, method, windowBits, memLevel,
|
||||
strategy, ZLIB_VERSION, sizeof(z_stream));
|
||||
end;
|
||||
|
||||
function inflateInit(strm: z_streamp): int;
|
||||
begin
|
||||
Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream));
|
||||
end;
|
||||
|
||||
function inflateInit2(strm: z_streamp; windowBits: int): int;
|
||||
begin
|
||||
Result := inflateInit2_(strm, windowBits, ZLIB_VERSION,
|
||||
sizeof(z_stream));
|
||||
end;
|
||||
|
||||
const
|
||||
zlibDLL = 'png32bd.dll';
|
||||
|
||||
function adler32; external zlibDLL;
|
||||
function crc32; external zlibDLL;
|
||||
function deflate; external zlibDLL;
|
||||
function deflateCopy; external zlibDLL;
|
||||
function deflateEnd; external zlibDLL;
|
||||
function deflateInit2_; external zlibDLL;
|
||||
function deflateInit_; external zlibDLL;
|
||||
function deflateParams; external zlibDLL;
|
||||
function deflateReset; external zlibDLL;
|
||||
function deflateSetDictionary; external zlibDLL;
|
||||
function inflate; external zlibDLL;
|
||||
function inflateEnd; external zlibDLL;
|
||||
function inflateInit2_; external zlibDLL;
|
||||
function inflateInit_; external zlibDLL;
|
||||
function inflateReset; external zlibDLL;
|
||||
function inflateSetDictionary; external zlibDLL;
|
||||
function inflateSync; external zlibDLL;
|
||||
|
||||
end.
|
||||
@ -1,36 +0,0 @@
|
||||
# Makefile for zlib32bd.lib
|
||||
# ------------- Borland C++ 4.5 -------------
|
||||
|
||||
# The (32-bit) zlib32bd.lib made with this makefile is intended for use
|
||||
# in making the (32-bit) DLL, png32bd.dll. It uses the "stdcall" calling
|
||||
# convention.
|
||||
|
||||
CFLAGS= -ps -O2 -C -K -N- -k- -d -3 -r- -w-par -w-aus -WDE
|
||||
CC=f:\bc45\bin\bcc32
|
||||
LIBFLAGS= /C
|
||||
LIB=f:\bc45\bin\tlib
|
||||
ZLIB=zlib32bd.lib
|
||||
|
||||
.autodepend
|
||||
.c.obj:
|
||||
$(CC) -c $(CFLAGS) $<
|
||||
|
||||
OBJ1=adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj
|
||||
OBJ2=infcodes.obj inflate.obj inftrees.obj infutil.obj inffast.obj
|
||||
OBJ3=trees.obj uncompr.obj zutil.obj
|
||||
pOBJ1=+adler32.obj+compress.obj+crc32.obj+deflate.obj+gzio.obj+infblock.obj
|
||||
pOBJ2=+infcodes.obj+inflate.obj+inftrees.obj+infutil.obj+inffast.obj
|
||||
pOBJ3=+trees.obj+uncompr.obj+zutil.obj
|
||||
|
||||
all: $(ZLIB)
|
||||
|
||||
$(ZLIB): $(OBJ1) $(OBJ2) $(OBJ3)
|
||||
@if exist $@ del $@
|
||||
$(LIB) @&&|
|
||||
$@ $(LIBFLAGS) &
|
||||
$(pOBJ1) &
|
||||
$(pOBJ2) &
|
||||
$(pOBJ3)
|
||||
|
|
||||
|
||||
# End of makefile for zlib32bd.lib
|
||||
Reference in New Issue
Block a user