mirror of
https://git.code.sf.net/p/libpng/code.git
synced 2025-07-10 18:04:09 +02:00
Imported from libpng-1.4.0beta1.tar
This commit is contained in:
Glenn Randers-Pehrson
233
pngconf.h
233
pngconf.h
@@ -1,7 +1,7 @@
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/* pngconf.h - machine configurable file for libpng
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*
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* libpng version 1.2.10rc1 - April 19, 2006
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* libpng version 1.4.0beta1 - April 20, 2006
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* For conditions of distribution and use, see copyright notice in png.h
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* Copyright (c) 1998-2005 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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@@ -17,7 +17,6 @@
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#ifndef PNGCONF_H
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#define PNGCONF_H
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#define PNG_1_2_X
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/*
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* PNG_USER_CONFIG has to be defined on the compiler command line. This
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@@ -106,7 +105,7 @@
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/* Enabled by default in 1.2.0. You can disable this if you don't need to
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support PNGs that are embedded in MNG datastreams */
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#if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)
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#if !defined(PNG_NO_MNG_FEATURES)
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# ifndef PNG_MNG_FEATURES_SUPPORTED
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# define PNG_MNG_FEATURES_SUPPORTED
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# endif
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@@ -248,10 +247,7 @@
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# endif
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# endif
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# else
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# if !defined(_WIN32_WCE)
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/* "stdio.h" functions are not supported on WindowsCE */
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# include <stdio.h>
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# endif
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# include <stdio.h>
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# endif
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/* This macro protects us against machines that don't have function
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@@ -337,93 +333,6 @@
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#endif
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/* Other defines for things like memory and the like can go here. */
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#ifdef PNG_INTERNAL
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#include <stdlib.h>
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/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
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* aren't usually used outside the library (as far as I know), so it is
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* debatable if they should be exported at all. In the future, when it is
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* possible to have run-time registry of chunk-handling functions, some of
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* these will be made available again.
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#define PNG_EXTERN extern
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*/
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#define PNG_EXTERN
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/* Other defines specific to compilers can go here. Try to keep
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* them inside an appropriate ifdef/endif pair for portability.
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*/
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#if defined(PNG_FLOATING_POINT_SUPPORTED)
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# if defined(MACOS)
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/* We need to check that <math.h> hasn't already been included earlier
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* as it seems it doesn't agree with <fp.h>, yet we should really use
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* <fp.h> if possible.
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*/
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# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
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# include <fp.h>
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# endif
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# else
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# include <math.h>
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# endif
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# if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
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/* Amiga SAS/C: We must include builtin FPU functions when compiling using
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* MATH=68881
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*/
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# include <m68881.h>
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# endif
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#endif
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/* Codewarrior on NT has linking problems without this. */
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#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
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# define PNG_ALWAYS_EXTERN
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#endif
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/* This provides the non-ANSI (far) memory allocation routines. */
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#if defined(__TURBOC__) && defined(__MSDOS__)
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# include <mem.h>
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# include <alloc.h>
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#endif
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/* I have no idea why is this necessary... */
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#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
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defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
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# include <malloc.h>
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#endif
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/* This controls how fine the dithering gets. As this allocates
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* a largish chunk of memory (32K), those who are not as concerned
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* with dithering quality can decrease some or all of these.
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*/
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#ifndef PNG_DITHER_RED_BITS
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# define PNG_DITHER_RED_BITS 5
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#endif
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#ifndef PNG_DITHER_GREEN_BITS
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# define PNG_DITHER_GREEN_BITS 5
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#endif
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#ifndef PNG_DITHER_BLUE_BITS
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# define PNG_DITHER_BLUE_BITS 5
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#endif
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/* This controls how fine the gamma correction becomes when you
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* are only interested in 8 bits anyway. Increasing this value
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* results in more memory being used, and more pow() functions
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* being called to fill in the gamma tables. Don't set this value
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* less then 8, and even that may not work (I haven't tested it).
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*/
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#ifndef PNG_MAX_GAMMA_8
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# define PNG_MAX_GAMMA_8 11
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#endif
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/* This controls how much a difference in gamma we can tolerate before
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* we actually start doing gamma conversion.
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*/
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#ifndef PNG_GAMMA_THRESHOLD
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# define PNG_GAMMA_THRESHOLD 0.05
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#endif
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#endif /* PNG_INTERNAL */
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/* The following uses const char * instead of char * for error
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* and warning message functions, so some compilers won't complain.
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@@ -466,21 +375,9 @@
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* iTXt support was added. iTXt support was turned off by default through
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* libpng-1.2.x, to support old apps that malloc the png_text structure
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* instead of calling png_set_text() and letting libpng malloc it. It
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* was turned on by default in libpng-1.3.0.
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* was turned on by default in libpng-1.4.0.
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*/
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#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
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# ifndef PNG_NO_iTXt_SUPPORTED
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# define PNG_NO_iTXt_SUPPORTED
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# endif
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# ifndef PNG_NO_READ_iTXt
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# define PNG_NO_READ_iTXt
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# endif
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# ifndef PNG_NO_WRITE_iTXt
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# define PNG_NO_WRITE_iTXt
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# endif
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#endif
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#if !defined(PNG_NO_iTXt_SUPPORTED)
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# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
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# define PNG_READ_iTXt
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@@ -607,14 +504,6 @@
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# endif
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#endif
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#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
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/* Deprecated, will be removed from version 2.0.0.
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Use PNG_MNG_FEATURES_SUPPORTED instead. */
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#ifndef PNG_NO_READ_EMPTY_PLTE
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# define PNG_READ_EMPTY_PLTE_SUPPORTED
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#endif
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#endif
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#endif /* PNG_READ_SUPPORTED */
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#if defined(PNG_WRITE_SUPPORTED)
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@@ -674,20 +563,11 @@
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# define PNG_WRITE_FLUSH_SUPPORTED
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#endif
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#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
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/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
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#ifndef PNG_NO_WRITE_EMPTY_PLTE
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# define PNG_WRITE_EMPTY_PLTE_SUPPORTED
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#endif
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#endif
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#endif /* PNG_WRITE_SUPPORTED */
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#ifndef PNG_1_0_X
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# ifndef PNG_NO_ERROR_NUMBERS
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# define PNG_ERROR_NUMBERS_SUPPORTED
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# endif
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#endif /* PNG_1_0_X */
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#ifndef PNG_NO_ERROR_NUMBERS
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# define PNG_ERROR_NUMBERS_SUPPORTED
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#endif
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#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
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defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
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@@ -742,20 +622,16 @@
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#define PNG_THREAD_UNSAFE_OK
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*/
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#if !defined(PNG_1_0_X)
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#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
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# define PNG_USER_MEM_SUPPORTED
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#endif
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#endif /* PNG_1_0_X */
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/* Added at libpng-1.2.6 */
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#if !defined(PNG_1_0_X)
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#ifndef PNG_SET_USER_LIMITS_SUPPORTED
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#if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED)
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# define PNG_SET_USER_LIMITS_SUPPORTED
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#endif
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#endif
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#endif /* PNG_1_0_X */
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/* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter
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* how large, set these limits to 0x7fffffffL
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@@ -1200,18 +1076,6 @@ typedef double FAR * FAR * png_doublepp;
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/* Pointers to pointers to pointers; i.e., pointer to array */
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typedef char FAR * FAR * FAR * png_charppp;
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#if defined(PNG_1_0_X) || defined(PNG_1_2_X)
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/* SPC - Is this stuff deprecated? */
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/* It'll be removed as of libpng-1.3.0 - GR-P */
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/* libpng typedefs for types in zlib. If zlib changes
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* or another compression library is used, then change these.
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* Eliminates need to change all the source files.
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*/
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typedef charf * png_zcharp;
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typedef charf * FAR * png_zcharpp;
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typedef z_stream FAR * png_zstreamp;
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#endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */
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/*
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* Define PNG_BUILD_DLL if the module being built is a Windows
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* LIBPNG DLL.
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@@ -1382,10 +1246,6 @@ typedef z_stream FAR * png_zstreamp;
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* functions that are passed far data must be model independent.
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*/
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#ifndef PNG_ABORT
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# define PNG_ABORT() abort()
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#endif
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#ifdef PNG_SETJMP_SUPPORTED
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# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
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#else
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@@ -1393,7 +1253,16 @@ typedef z_stream FAR * png_zstreamp;
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(LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
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#endif
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#if defined(USE_FAR_KEYWORD) /* memory model independent fns */
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/* memory model/platform independent fns */
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#ifndef PNG_ABORT
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# ifdef _WINDOWS_
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# define PNG_ABORT() ExitProcess(0)
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# else
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# define PNG_ABORT() abort()
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# endif
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#endif
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#if defined(USE_FAR_KEYWORD)
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/* use this to make far-to-near assignments */
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# define CHECK 1
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# define NOCHECK 0
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@@ -1405,17 +1274,53 @@ typedef z_stream FAR * png_zstreamp;
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# define png_memcmp _fmemcmp /* SJT: added */
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# define png_memcpy _fmemcpy
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# define png_memset _fmemset
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#else /* use the usual functions */
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# define CVT_PTR(ptr) (ptr)
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# define CVT_PTR_NOCHECK(ptr) (ptr)
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# define png_strcpy strcpy
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# define png_strncpy strncpy /* Added to v 1.2.6 */
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# define png_strlen strlen
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# define png_memcmp memcmp /* SJT: added */
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# define png_memcpy memcpy
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# define png_memset memset
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# define png_sprintf sprintf
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#else
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# if defined(_WINDOWS_) /* favor Windows over C runtime fns */
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# define CVT_PTR(ptr) (ptr)
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# define CVT_PTR_NOCHECK(ptr) (ptr)
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# define png_strcpy lstrcpyA
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# define png_strncpy lstrcpynA
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# define png_strlen lstrlenA
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# define png_memcmp memcmp
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# define png_memcpy CopyMemory
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# define png_memset memset
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# define png_sprintf wsprintfA
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# else
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# define CVT_PTR(ptr) (ptr)
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# define CVT_PTR_NOCHECK(ptr) (ptr)
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# define png_strcpy strcpy
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# define png_strncpy strncpy /* Added to v 1.2.6 */
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# define png_strlen strlen
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# define png_memcmp memcmp /* SJT: added */
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# define png_memcpy memcpy
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# define png_memset memset
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# define png_sprintf sprintf
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# endif
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#endif
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/* End of memory model independent support */
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#if defined(__TURBOC__) && !defined(__FLAT__)
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# define png_mem_alloc farmalloc
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# define png_mem_free farfree
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typedef unsigned long png_mem_size_t;
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#else
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# if defined(_MSC_VER) && defined(MAXSEG_64K)
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# define png_mem_alloc(s) halloc(s, 1)
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# define png_mem_free hfree
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typedef unsigned long png_mem_size_t;
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#else
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# if defined(_WINDOWS_)
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# define png_mem_alloc(s) HeapAlloc(GetProcessHeap(), 0, s)
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# define png_mem_free(p) HeapFree(GetProcessHeap(), 0, p)
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typedef SIZE_T png_mem_size_t;
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# else
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# define png_mem_alloc malloc
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# define png_mem_free free
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typedef size_t png_mem_size_t;
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# endif
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# endif
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#endif
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/* End of memory model/platform independent support */
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/* Just a little check that someone hasn't tried to define something
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* contradictory.
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@@ -1447,9 +1352,9 @@ typedef z_stream FAR * png_zstreamp;
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* MMX will be detected at run time and used if present.
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*/
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#ifdef PNG_USE_PNGVCRD
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# define PNG_HAVE_ASSEMBLER_COMBINE_ROW
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# define PNG_HAVE_ASSEMBLER_READ_INTERLACE
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# define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
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# define PNG_HAVE_MMX_COMBINE_ROW
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# define PNG_HAVE_MMX_READ_INTERLACE
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# define PNG_HAVE_MMX_READ_FILTER_ROW
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#endif
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/* Set this in the makefile for gcc/as on Pentium, not here. */
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@@ -1457,9 +1362,9 @@ typedef z_stream FAR * png_zstreamp;
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* MMX will be detected at run time and used if present.
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*/
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#ifdef PNG_USE_PNGGCCRD
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# define PNG_HAVE_ASSEMBLER_COMBINE_ROW
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# define PNG_HAVE_ASSEMBLER_READ_INTERLACE
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# define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
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# define PNG_HAVE_MMX_COMBINE_ROW
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# define PNG_HAVE_MMX_READ_INTERLACE
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# define PNG_HAVE_MMX_READ_FILTER_ROW
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#endif
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/* - see pnggccrd.c for info about what is currently enabled */
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