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Imported from pngcrush-1.4.6.tar

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This commit is contained in:
Glenn Randers-Pehrson
2000-07-18 06:38:28 -05:00
parent 55c878d8e5
commit 4d6ce965b5
24 changed files with 1000 additions and 436 deletions
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1
inflate.c
View File

@@ -237,7 +237,6 @@ int f;
break;
}
z->state->mode = CHECK4;
r=Z_DATA_ERROR;
case CHECK4:
NEEDBYTE
z->state->sub.check.need = (uLong)NEXTBYTE << 24;

48
png.c
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@@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* libpng version 1.0.7rc2 - June 28, 2000
* libpng version 1.0.8rc1 - July 17, 2000
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -10,18 +10,17 @@
#define PNG_INTERNAL
#define PNG_NO_EXTERN
#include <assert.h>
#include "png.h"
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_7rc2 Your_png_h_is_not_version_1_0_7rc2;
typedef version_1_0_8rc1 Your_png_h_is_not_version_1_0_8rc1;
/* Version information for C files. This had better match the version
* string defined in png.h. */
#ifdef PNG_USE_GLOBAL_ARRAYS
/* png_libpng_ver was changed to a function in version 1.0.5c */
char png_libpng_ver[12] = "1.0.7rc2";
char png_libpng_ver[12] = "1.0.8rc1";
/* png_sig was changed to a function in version 1.0.5c */
/* Place to hold the signature string for a PNG file. */
@@ -141,6 +140,7 @@ png_zalloc(voidpf png_ptr, uInt items, uInt size)
png_uint_32 num_bytes = (png_uint_32)items * size;
png_voidp ptr = (png_voidp)png_malloc((png_structp)png_ptr, num_bytes);
#ifndef PNG_NO_ZALLOC_ZERO
if (num_bytes > (png_uint_32)0x8000L)
{
png_memset(ptr, 0, (png_size_t)0x8000L);
@@ -151,6 +151,7 @@ png_zalloc(voidpf png_ptr, uInt items, uInt size)
{
png_memset(ptr, 0, (png_size_t)num_bytes);
}
#endif
return ((voidpf)ptr);
}
@@ -362,7 +363,10 @@ if (mask & PNG_FREE_PCAL)
{
int i;
for (i = 0; i < (int)info_ptr->pcal_nparams; i++)
{
png_free(png_ptr, info_ptr->pcal_params[i]);
info_ptr->pcal_params[i]=NULL;
}
png_free(png_ptr, info_ptr->pcal_params);
info_ptr->pcal_params = NULL;
}
@@ -492,7 +496,10 @@ if (mask & PNG_FREE_ROWS)
{
int row;
for (row = 0; row < (int)info_ptr->height; row++)
{
png_free(png_ptr, info_ptr->row_pointers[row]);
info_ptr->row_pointers[row]=NULL;
}
png_free(png_ptr, info_ptr->row_pointers);
info_ptr->row_pointers=NULL;
}
@@ -523,6 +530,7 @@ png_info_destroy(png_structp png_ptr, png_infop info_ptr)
if (png_ptr->num_chunk_list)
{
png_free(png_ptr, png_ptr->chunk_list);
png_ptr->chunk_list=NULL;
png_ptr->num_chunk_list=0;
}
#endif
@@ -548,7 +556,7 @@ png_get_io_ptr(png_structp png_ptr)
* necessarily available.
*/
void PNGAPI
png_init_io(png_structp png_ptr, FILE *fp)
png_init_io(png_structp png_ptr, png_FILE_p fp)
{
png_debug(1, "in png_init_io\n");
png_ptr->io_ptr = (png_voidp)fp;
@@ -572,6 +580,17 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
sizeof(char)));
}
#if defined(_WIN32_WCE)
{
wchar_t time_buf[29];
wsprintf(time_buf, TEXT("%d %S %d %02d:%02d:%02d +0000"),
ptime->day % 32, short_months[(ptime->month - 1) % 12],
ptime->year, ptime->hour % 24, ptime->minute % 60,
ptime->second % 61);
WideCharToMultiByte(CP_ACP, 0, time_buf, -1, png_ptr->time_buffer, 29,
NULL, NULL);
}
#else
#ifdef USE_FAR_KEYWORD
{
char near_time_buf[29];
@@ -588,6 +607,7 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
ptime->year, ptime->hour % 24, ptime->minute % 60,
ptime->second % 61);
#endif
#endif /* _WIN32_WCE */
return ((png_charp)png_ptr->time_buffer);
}
#endif /* PNG_TIME_RFC1123_SUPPORTED */
@@ -605,11 +625,11 @@ png_charp PNGAPI
png_get_copyright(png_structp png_ptr)
{
if (png_ptr != NULL || png_ptr == NULL) /* silence compiler warning */
return ("\n libpng version 1.0.7rc2 - June 28, 2000\n\
return ((png_charp) "\n libpng version 1.0.8rc1 - July 17, 2000\n\
Copyright (c) 1998-2000 Glenn Randers-Pehrson\n\
Copyright (c) 1996, 1997 Andreas Dilger\n\
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n");
return ("");
return ((png_charp) "");
}
/* The following return the library version as a short string in the
@@ -623,8 +643,8 @@ png_get_libpng_ver(png_structp png_ptr)
{
/* Version of *.c files used when building libpng */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return("1.0.7rc2");
return("1.0.7rc2");
return((png_charp) "1.0.8rc1");
return((png_charp) "1.0.8rc1");
}
png_charp PNGAPI
@@ -632,8 +652,8 @@ png_get_header_ver(png_structp png_ptr)
{
/* Version of *.h files used when building libpng */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return(PNG_LIBPNG_VER_STRING);
return(PNG_LIBPNG_VER_STRING);
return((png_charp) PNG_LIBPNG_VER_STRING);
return((png_charp) PNG_LIBPNG_VER_STRING);
}
png_charp PNGAPI
@@ -641,8 +661,8 @@ png_get_header_version(png_structp png_ptr)
{
/* Returns longer string containing both version and date */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return(PNG_HEADER_VERSION_STRING);
return(PNG_HEADER_VERSION_STRING);
return((png_charp) PNG_HEADER_VERSION_STRING);
return((png_charp) PNG_HEADER_VERSION_STRING);
}
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
@@ -673,5 +693,5 @@ png_uint_32 PNGAPI
png_access_version_number(void)
{
/* Version of *.c files used when building libpng */
return((png_uint_32) 10007L);
return((png_uint_32) 10008L);
}

95
png.h
View File

@@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.0.7rc2 - June 28, 2000
* libpng version 1.0.8rc1 - July 17, 2000
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -9,7 +9,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.0.7rc2 - June 28, 2000: Glenn
* libpng versions 0.97, January 1998, through 1.0.8rc1 - July 17, 2000: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -54,9 +54,9 @@
* 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0)
* 1.0.7beta11-18 10007 2.1.0.7beta11-18 (binary compatible)
* 1.0.7rc1-2 10007 2.1.0.7rc1-2 (binary compatible)
* planned:
* 1.0.6patch4 (w/4 patches) 10006 2.1.0.6 (binary compatible)
* 1.0.7 10007 (still compatible)
* 1.0.8beta1-4 10008 2.1.0.8beta1-4
* 1.0.8rc1 10008 2.1.0.8rc1
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@@ -83,17 +83,26 @@
* If you modify libpng you may insert additional notices immediately following
* this sentence.
*
* libpng versions 1.0.6, March 20, 2000, through 1.0.7rc2, June 28, 2000, are
* libpng version 1.0.8rc1, July 17, 2000, is
* Copyright (c) 2000 Glenn Randers-Pehrson
* Distributed according to the same disclaimer and license as libpng-1.0.5
* with the following individuals added to the list of Contributing Authors:
* Distributed according to the same disclaimer and license as libpng-1.0.6
* with the following individuals added to the list of Contributing Authors
*
* Simon-Pierre Cadieux
* Eric S. Raymond
* Gilles Vollant
*
* libpng versions 0.97, January 1998, through 1.0.5, October 15, 1999, are
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* and with the following additions to the disclaimer:
*
* There is no warranty against interference with your enjoyment of the
* library or against infringement. There is no warranty that our
* efforts or the library will fulfill any of your particular purposes
* or needs. This library is provided with all faults, and the entire
* risk of satisfactory quality, performance, accuracy, and effort is with
* the user.
*
* libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* Distributed according to the same disclaimer and license as libpng-0.96,
* with the following individuals added to the list of Contributing Authors:
*
@@ -159,7 +168,7 @@
* printf("%s",png_get_copyright(NULL));
*
* Also, the PNG logo (in PNG format, of course) is supplied in the
* file "pngnow.png".
* files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
*/
/*
@@ -179,13 +188,13 @@
* Y2K compliance in libpng:
* =========================
*
* June 28, 2000
* July 17, 2000
*
* 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 0.71 and
* upward through 1.0.7rc2 are Y2K compliant. It is my belief that earlier
* upward through 1.0.8rc1 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
@@ -241,24 +250,24 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.7rc2"
#define PNG_LIBPNG_VER_STRING "1.0.8rc1"
#define PNG_LIBPNG_VER_SONUM 2
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 0
#define PNG_LIBPNG_VER_RELEASE 7
#define PNG_LIBPNG_VER_RELEASE 8
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
#define PNG_LIBPNG_VER_BUILD 2
#define PNG_LIBPNG_VER_BUILD 1
/* 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=release */
#define PNG_LIBPNG_VER 10007 /* 1.0.7 */
#define PNG_LIBPNG_VER 10008 /* 1.0.8 */
/* Note to maintainer: update this number in scripts/pngdef.pas as well */
@@ -656,11 +665,10 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
* range given by [pcal_X0, pcal_X1], and are further transformed by a
* (possibly non-linear) transformation function given by "pcal_type"
* and "pcal_params" into "pcal_units". Please see the PNG_EQUATION_
* defines below, and the PNG-Group's Scientific Visualization extension
* chunks document png-scivis-19970203 for a complete description of the
* transformations and how they should be implemented, as well as the
* png-extensions document for a description of the ASCII parameter
* strings. Data values are valid if (valid & PNG_INFO_pCAL) non-zero.
* defines below, and the PNG-Group's PNG extensions document for a
* complete description of the transformations and how they should be
* implemented, and for a description of the ASCII parameter strings.
* Data values are valid if (valid & PNG_INFO_pCAL) non-zero.
*/
png_charp pcal_purpose; /* pCAL chunk description string */
png_int_32 pcal_X0; /* minimum value */
@@ -1140,9 +1148,9 @@ struct png_struct_def
};
/* This prevents a compiler error in png_get_copyright() in png.c if png.c
and png.h are both at * version 1.0.7rc2
and png.h are both at * version 1.0.8rc1
*/
typedef png_structp version_1_0_7rc2;
typedef png_structp version_1_0_8rc1;
typedef png_struct FAR * FAR * png_structpp;
@@ -1241,6 +1249,8 @@ extern PNG_EXPORT(png_charp,png_convert_to_rfc1123)
PNGARG((png_structp png_ptr, png_timep ptime));
#endif
#if !defined(_WIN32_WCE)
/* "time.h" functions are not supported on WindowsCE */
#if defined(PNG_WRITE_tIME_SUPPORTED)
/* convert from a struct tm to png_time */
extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime,
@@ -1250,6 +1260,7 @@ extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime,
extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime,
time_t ttime));
#endif /* PNG_WRITE_tIME_SUPPORTED */
#endif /* _WIN32_WCE */
#if defined(PNG_READ_EXPAND_SUPPORTED)
/* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */
@@ -1583,7 +1594,7 @@ extern PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr,
#if !defined(PNG_NO_STDIO)
/* Initialize the input/output for the PNG file to the default functions. */
extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr, FILE *fp));
extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr, png_FILE_p fp));
#endif
/* Replace the (error and abort), and warning functions with user
@@ -2121,25 +2132,35 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,
#if (PNG_DEBUG > 0)
#if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER)
#include <crtdbg.h>
#define png_debug(l,m) if (PNG_DEBUG > l) _RPT0(_CRT_WARN,m)
#define png_debug1(l,m,p1) if (PNG_DEBUG > l) _RPT1(_CRT_WARN,m,p1)
#define png_debug2(l,m,p1,p2) if (PNG_DEBUG > l) _RPT2(_CRT_WARN,m,p1,p2)
#if (PNG_DEBUG > 1)
#define png_debug(l,m) _RPT0(_CRT_WARN,m)
#define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m,p1)
#define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m,p1,p2)
#endif
#else /* PNG_DEBUG_FILE || !_MSC_VER */
#ifndef PNG_DEBUG_FILE
#define PNG_DEBUG_FILE stderr
#endif /* PNG_DEBUG_FILE */
#if (PNG_DEBUG > 1)
#define png_debug(l,m) \
if (PNG_DEBUG > l) \
fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
(l==2 ? "\t\t":(l>2 ? "\t\t\t":""))))
{ \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \
}
#define png_debug1(l,m,p1) \
if (PNG_DEBUG > l) \
fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
(l==2 ? "\t\t":(l>2 ? "\t\t\t":""))),p1)
{ \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \
}
#define png_debug2(l,m,p1,p2) \
if (PNG_DEBUG > l) \
fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
(l==2 ? "\t\t":(l>2 ? "\t\t\t":""))),p1,p2)
{ \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \
}
#endif /* (PNG_DEBUG > 1) */
#endif /* _MSC_VER */
#endif /* (PNG_DEBUG > 0) */
#endif /* PNG_DEBUG */
@@ -2161,7 +2182,7 @@ extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr)
extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.0.7rc2 - June 28, 2000 (header)\n"
" libpng version 1.0.8rc1 - July 17, 2000 (header)\n"
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
/* With these routines we avoid an integer divide, which will be slower on

2
pngasmrd.h
View File

@@ -1,6 +1,6 @@
/* pngasmrd.h - assembler version of utilities to read a PNG file
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1999, 2000 Glenn Randers-Pehrson
*

147
pngconf.h
View File

@@ -1,6 +1,6 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -51,6 +51,60 @@
#define PNG_MAX_MALLOC_64K
#endif
/* Special munging to support doing things the 'cygwin' way:
* 'Normal' png-on-win32 defines/defaults:
* PNG_BUILD_DLL -- building dll
* PNG_USE_DLL -- building an application, linking to dll
* (no define) -- building static library, or building an
* application and linking to the static lib
* 'Cygwin' defines/defaults:
* PNG_BUILD_DLL -- building the dll
* (no define) -- building an application, linking to the dll
* PNG_STATIC -- building the static lib, or building an application
* which links to the static lib.
* Thus,
* a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
* this bit of #ifdefs will define the 'correct' config variables based on
* that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
* unnecessary.
*/
#if defined(__CYGWIN__)
# if defined(PNG_BUILD_DLL)
# if defined(PNG_USE_DLL)
# undef PNG_USE_DLL
# endif
# if !defined(PNG_DLL)
# define PNG_DLL
# endif
# if defined(PNG_STATIC)
# undef PNG_STATIC
# endif
# else
# if defined(PNG_STATIC)
# if defined(PNG_USE_DLL)
# undef PNG_USE_DLL
# endif
# if defined(PNG_DLL)
# undef PNG_DLL
# endif
# else
# if defined(PNG_USE_DLL)
# if !defined(PNG_DLL)
# define PNG_DLL
# endif
# else
# if defined(PNG_DLL)
# define PNG_USE_DLL
# else
# define PNG_USE_DLL
# define PNG_DLL
# endif
# endif
# endif
# endif
#endif
/* This protects us against compilers that run on a windowing system
* and thus don't have or would rather us not use the stdio types:
* stdin, stdout, and stderr. The only one currently used is stderr
@@ -64,6 +118,15 @@
* #define PNG_NO_STDIO
*/
#if defined(_WIN32_WCE)
#include <windows.h>
/* Console I/O functions are not supported on WindowsCE */
#define PNG_NO_CONSOLE_IO
#ifdef PNG_DEBUG
# undef PNG_DEBUG
#endif
#endif
#ifdef PNG_BUILD_DLL
# ifndef PNG_CONSOLE_IO_SUPPORTED
# ifndef PNG_NO_CONSOLE_IO
@@ -82,7 +145,10 @@
# endif
# endif
# else
# include <stdio.h>
# if !defined(_WIN32_WCE)
/* "stdio.h" functions are not supported on WindowsCE */
# include <stdio.h>
# endif
# endif
/* This macro protects us against machines that don't have function
@@ -120,7 +186,7 @@
#endif
/* enough people need this for various reasons to include it here */
#if !defined(MACOS) && !defined(RISCOS)
#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
#include <sys/types.h>
#endif
@@ -524,6 +590,9 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
#ifndef PNG_NO_USER_MEM
#define PNG_USER_MEM_SUPPORTED
#endif
#ifndef PNG_NO_ZALLOC_ZERO
#define PNG_ZALLOC_ZERO
#endif
*/
/* This is only for PowerPC big-endian and 680x0 systems */
@@ -642,7 +711,7 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# endif
#endif
#if !defined (PNG_NO_READ_USER_CHUNKS) && \
#if !defined(PNG_NO_READ_USER_CHUNKS) && \
defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
# define PNG_READ_USER_CHUNKS_SUPPORTED
# define PNG_USER_CHUNKS_SUPPORTED
@@ -801,7 +870,10 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
/* need the time information for reading tIME chunks */
#if defined(PNG_tIME_SUPPORTED)
# include <time.h>
# if !defined(_WIN32_WCE)
/* "time.h" functions are not supported on WindowsCE */
# include <time.h>
# endif
#endif
/* Some typedefs to get us started. These should be safe on most of the
@@ -841,7 +913,7 @@ typedef size_t png_size_t;
#define LDATA 0
#endif
#if !defined(__WIN32__) && !defined(__FLAT__)
#if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
#define PNG_MAX_MALLOC_64K
#if (LDATA != 1)
#ifndef FAR
@@ -855,7 +927,7 @@ typedef size_t png_size_t;
* const if your compiler supports it. (SJT)
# define FARDATA FAR
*/
#endif /* __WIN32__, __FLAT__ */
#endif /* __WIN32__, __FLAT__, __CYGWIN__ */
#endif /* __BORLANDC__ */
@@ -898,6 +970,11 @@ typedef png_int_16 FAR * png_int_16p;
typedef PNG_CONST char FAR * png_const_charp;
typedef char FAR * png_charp;
typedef png_fixed_point FAR * png_fixed_point_p;
#if defined(_WIN32_WCE)
typedef HANDLE png_FILE_p;
#else
typedef FILE * png_FILE_p;
#endif
#ifdef PNG_FLOATING_POINT_SUPPORTED
typedef double FAR * png_doublep;
#endif
@@ -934,11 +1011,42 @@ typedef z_stream FAR * png_zstreamp;
* It is equivalent to Microsoft predefined macro _DLL which is
* automatically defined when you compile using the share
* version of the CRT (C Run-Time library)
*
* The cygwin mods make this behavior a little different:
* Define PNG_BUILD_DLL if you are building a dll for use with cygwin
* Define PNG_STATIC if you are building a static library for use with cygwin,
* -or- if you are building an application that you want to link to the
* static library.
* PNG_USE_DLL is defined by default (no user action needed) unless one of
* the other flags is defined.
*/
#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
# define PNG_DLL
#endif
/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
* When building a static lib, default to no GLOBAL ARRAYS, but allow
* command-line override
*/
#if defined(__CYGWIN__)
# if !defined(PNG_STATIC)
# if defined(PNG_USE_GLOBAL_ARRAYS)
# undef PNG_USE_GLOBAL_ARRAYS
# endif
# if !defined(PNG_USE_LOCAL_ARRAYS)
# define PNG_USE_LOCAL_ARRAYS
# endif
# else
# if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
# if defined(PNG_USE_GLOBAL_ARRAYS)
# undef PNG_USE_GLOBAL_ARRAYS
# endif
# endif
# endif
# if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
# define PNG_USE_LOCAL_ARRAYS
# endif
#endif
/* Do not use global arrays (helps with building DLL's)
* They are no longer used in libpng itself, since version 1.0.5c,
@@ -954,7 +1062,8 @@ typedef z_stream FAR * png_zstreamp;
#ifndef PNGAPI
#if defined(__MINGW32__) || defined(__CYGWIN32__) && !defined(PNG_MODULEDEF)
#if defined(__MINGW32__) || defined(__CYGWIN__) && !defined(PNG_MODULEDEF)
# ifndef PNG_NO_MODULEDEF
# define PNG_NO_MODULEDEF
# endif
@@ -965,8 +1074,9 @@ typedef z_stream FAR * png_zstreamp;
#endif
#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
defined(_Windows) || defined(_WINDOWS) || \
defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
(( defined(_Windows) || defined(_WINDOWS) || \
defined(WIN32) || defined(_WIN32) || defined(__WIN32__) \
) && !defined(__CYGWIN__))
# ifdef __GNUC__
# define PNGAPI __cdecl
@@ -1008,11 +1118,18 @@ typedef z_stream FAR * png_zstreamp;
# endif
# endif
# endif /* PNG_IMPEXP */
#else /* !(DLL || WINDOWS) */
# if 0 /* ... other platforms, with other meanings */
#else /* !(DLL || non-cygwin WINDOWS) */
# if defined(__CYGWIN__) && !defined(PNG_DLL)
# if !defined(PNG_IMPEXP)
# define PNG_IMPEXP
# endif
# define PNGAPI __cdecl
# else
# define PNGAPI
# define PNG_IMPEXP
# if 0 /* ... other platforms, with other meanings */
# else
# define PNGAPI
# define PNG_IMPEXP
# endif
# endif
#endif
#endif
@@ -1023,7 +1140,7 @@ typedef z_stream FAR * png_zstreamp;
#ifdef PNG_USE_GLOBAL_ARRAYS
#ifndef PNG_EXPORT_VAR
# define PNG_EXPORT_VAR(type) extern type
# define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
#endif
#endif

323
pngcrush.c
View File

@@ -1,4 +1,4 @@
/* pngcrush.c - a simple program to recompress png files
/* pngcrush.c - recompresses png files
* Copyright (C) 1998, 1999, 2000 Glenn Randers-Pehrson (randeg@alum.rpi.edu)
*
* This program reads in a PNG image, and writes it out again, with the
@@ -16,7 +16,7 @@
* occasionally creating Linux executables.
*/
#define PNGCRUSH_VERSION "1.4.5"
#define PNGCRUSH_VERSION "1.4.6"
/*
#define PNGCRUSH_COUNT_COLORS
@@ -57,6 +57,18 @@
*/
/* Change log:
*
* Version 1.4.6 (built with libpng-1.0.8rc1)
*
* Fixed bug in color-counting of noninterlaced images.
*
* Added capability of processing multiple rows at a time (disabled by
* default because it turns out to be no faster).
*
* Replaced "return" statements in main() with "exit" statements.
* Force exit instead of return with "-exit" argument.
*
* Added the UCITA disclaimers to the help output.
*
* Version 1.4.5 (built with libpng-1.0.7rc2 and cexcept-1.0.0)
*
@@ -257,13 +269,15 @@
#endif
#if PNGCRUSH_LIBPNG_VER != PNG_LIBPNG_VER
int
main()
{
printf("Sorry, but version numbers in pngcrush.h and png.h must match\n");
printf("Version numbers in pngcrush.h and png.h do not match\n");
}
#else
#if PNG_LIBPNG_VER < 96
int
main()
{
printf("Sorry, but pngcrush needs libpng version 0.96 or later\n");
@@ -388,10 +402,16 @@ static PNG_CONST char *outname = "pngout" DOT "png";
static PNG_CONST char *directory_name = "pngcrush" DOT "bak";
static PNG_CONST char *extension = "_C" DOT "png";
static png_uint_32 width, height;
static png_uint_32 measured_idat_length;
static int pngcrush_must_exit=0;
static int all_chunks_are_safe=0;
static int number_of_open_files;
static int do_pplt = 0;
#ifdef PNGCRUSH_MULTIPLE_ROWS
static png_uint_32 max_rows_at_a_time=1;
static png_uint_32 rows_at_a_time;
#endif
char pplt_string[1024];
char *ip, *op, *dot;
char in_string[256];
@@ -459,6 +479,9 @@ static int pauses=0;
static int nosave=0;
static int nointerlace=0;
static png_bytep row_buf;
#ifdef PNGCRUSH_MULTIPLE_ROWS
static png_bytepp row_pointers;
#endif
static int z_strategy;
static int best_of_three;
static int methods_specified=0;
@@ -504,6 +527,7 @@ static FILE *fpin, *fpout;
png_uint_32 measure_idats(FILE *fpin);
#ifdef PNGCRUSH_COUNT_COLORS
int count_colors(FILE *fpin);
static int reduce_to_gray, it_is_opaque;
#endif
png_uint_32 png_measure_idat(png_structp png_ptr);
# define MAX_METHODS 200
@@ -515,6 +539,8 @@ static png_bytep png_row_filters=NULL;
static TIME_T t_start, t_stop, t_decode, t_encode, t_misc;
static png_uint_32 max_idat_size = PNG_ZBUF_SIZE;
static png_uint_32 crushed_idat_size = 0x3ffffffL;
static int already_crushed = 0;
int ia;
/********* Functions to make direct access to the png_ptr. ***************
@@ -778,7 +804,7 @@ int keep_chunk(png_const_charp name, char *argv[])
fprintf(STDERR, " Check for removal of the %s chunk.\n", name);
for (i=1; i<=remove_chunks; i++)
{
if(!strncmp(argv[i],"-r",2))
if(!strncmp(argv[i],"-rem",4))
{
int alla = 0;
int allb = 0;
@@ -871,9 +897,8 @@ int
main(int argc, char *argv[])
{
png_uint_32 y;
png_uint_32 width, height;
int num_pass, pass;
int bit_depth, color_type;
int num_pass, pass;
int try_method[MAX_METHODSP1];
int fm[MAX_METHODSP1];
int lv[MAX_METHODSP1];
@@ -970,6 +995,13 @@ main(int argc, char *argv[])
}
}
else if( !strncmp(argv[i],"-already",8))
{
names++;
BUMP_I;
crushed_idat_size = (png_uint_32)atoi(argv[i]);
}
else if( !strncmp(argv[i],"-bkgd",5) ||
!strncmp(argv[i],"-bKGD",5))
{
@@ -1023,6 +1055,8 @@ main(int argc, char *argv[])
pngcrush_mode=DIRECTORY_MODE;
directory_name= argv[names++];
}
else if(!strncmp(argv[i],"-exit",2))
pngcrush_must_exit=1;
else if(!strncmp(argv[i],"-e",2))
{
BUMP_I;
@@ -1191,6 +1225,8 @@ main(int argc, char *argv[])
{
pauses++;
}
else if(!strncmp(argv[i],"-q",2))
verbose=0;
#ifdef PNG_gAMA_SUPPORTED
else if(!strncmp(argv[i],"-rep",4))
{
@@ -1233,6 +1269,14 @@ main(int argc, char *argv[])
BUMP_I;
resolution=atoi(argv[i]);
}
#endif
#ifdef PNGCRUSH_MULTIPLE_ROWS
else if(!strncmp(argv[i],"-rows",5))
{
names++;
BUMP_I;
max_rows_at_a_time=atoi(argv[i]);
}
#endif
else if(!strncmp(argv[i],"-r",2))
{
@@ -1412,6 +1456,8 @@ main(int argc, char *argv[])
if(verbose > 0)
{
/* If you have modified this source, you may insert additional notices
* immediately after this sentence. */
fprintf(STDERR,
"\n | %s %s, Copyright (C) 1998, 1999, 2000 Glenn Randers-Pehrson\n",
progname, PNGCRUSH_VERSION);
@@ -1420,16 +1466,16 @@ main(int argc, char *argv[])
fprintf(STDERR,
" | This program was built with libpng version %s,\n",
PNG_LIBPNG_VER_STRING);
fprintf(STDERR,
" | Copyright (C) 1995, Guy Eric Schalnat, Group 42 Inc.,\n");
#if PNG_LIBPNG_VER > 89
fprintf(STDERR,
" | Copyright (C) 1996, 1997 Andreas Dilger,\n");
#endif
#if PNG_LIBPNG_VER > 96
fprintf(STDERR,
" | Copyright (C) 1998, 1999, 2000 Glenn Randers-Pehrson,\n");
#endif
#if PNG_LIBPNG_VER > 89
fprintf(STDERR,
" | Copyright (C) 1996, 1997 Andreas Dilger,\n");
#endif
fprintf(STDERR,
" | Copyright (C) 1995, Guy Eric Schalnat, Group 42 Inc.,\n");
fprintf(STDERR,
" | and zlib version %s, Copyright (C) 1998,\n",
ZLIB_VERSION);
@@ -1437,11 +1483,13 @@ main(int argc, char *argv[])
" | Jean-loup Gailly and Mark Adler.\n");
#if defined(__DJGPP__)
fprintf(STDERR,
" | It was compiled with gcc version %s and as version %s\n",
__VERSION__, "2.81");
" | It was compiled with gcc version %s", __VERSION__);
# if defined(PNG_USE_PNGGCCRD)
/* is there a macro for "as" versions? */
fprintf(STDERR, "\n | and as version %s", "2.9.5");
# endif
fprintf(STDERR,
" | under DJGPP %d.%d, Copyright (C) 1995, D. J. Delorie\n",
"\n | under DJGPP %d.%d, Copyright (C) 1995, D. J. Delorie\n",
__DJGPP__,__DJGPP_MINOR__);
fprintf(STDERR,
" | and loaded with PMODE/DJ, by Thomas Pytel and Matthias Grimrath\n");
@@ -1494,6 +1542,15 @@ main(int argc, char *argv[])
}
else
fprintf(STDERR, "options:\n");
fprintf(STDERR,
" -already already_crushed_size [e.g., 8192])\n");
if(verbose > 1)
{
fprintf(STDERR,
"\n If file has an IDAT greater than this size, it\n");
fprintf(STDERR,
" will be considered to be already crushed.\n\n");
}
fprintf(STDERR,
" -brute (Use brute-force, try 114 different methods [11-124])\n");
if(verbose > 1)
@@ -1817,7 +1874,7 @@ main(int argc, char *argv[])
png_crush_pause();
}
fprintf(STDERR,
" -h (help)\n");
" -h (help and legal notices)\n");
if(verbose > 1)
fprintf(STDERR,
"\n Display this information.\n\n");
@@ -1832,6 +1889,51 @@ main(int argc, char *argv[])
fprintf(STDERR,
" screen scrolls out of sight.\n\n");
}
/* If you have modified this source, you may insert additional notices
* immediately after this sentence. */
fprintf (STDERR,
"\nCopyright (C) 1998, 1999, 2000 Glenn Randers-Pehrson (randeg@alum.rpi.edu)\n\n");
fprintf(STDERR,
"\nDISCLAIMER: The pngcrush computer program is supplied \"AS IS\".\n");
fprintf(STDERR,
"The Author disclaims all warranties, expressed or implied, including,\n");
fprintf(STDERR,
"without limitation, the warranties of merchantability and of fitness\n");
fprintf(STDERR,
"for any purpose. The Author assumes no liability for direct, indirect,\n");
fprintf(STDERR,
"incidental, special, exemplary, or consequential damages, which may\n");
fprintf(STDERR,
"result from the use of the computer program, even if advised of the\n");
fprintf(STDERR,
"possibility of such damage. There is no warranty against interference\n");
fprintf(STDERR,
"with your enjoyment of the computer program or against infringement.\n");
fprintf(STDERR,
"There is no warranty that my efforts or the computer program will\n");
fprintf(STDERR,
"fulfill any of your particular purposes or needs. This computer\n");
fprintf(STDERR,
"program is provided with all faults, and the entire risk of satisfactory\n");
fprintf(STDERR,
"quality, performance, accuracy, and effort is with the user.\n");
fprintf(STDERR,
"\nLICENSE: Permission is hereby granted to anyone to use, copy, modify,\n");
fprintf(STDERR,
"and distribute this computer program, or portions hereof, for any\n");
fprintf(STDERR,
"purpose, without fee, subject to the following restrictions:\n\n");
fprintf(STDERR,
"1. The origin of this binary or source code must not be misrepresented.\n\n");
fprintf(STDERR,
"2. Altered versions must be plainly marked as such and must not be\n");
fprintf(STDERR,
"misrepresented as being the original binary or source.\n\n");
fprintf(STDERR,
"3. The Copyright notice, disclaimer, and license may not be removed\n");
fprintf(STDERR,
"or altered from any source, binary, or altered source distribution.\n");
if(pngcrush_mode == DEFAULT_MODE && argc - names != 2 && nosave == 0)
exit(1);
@@ -1855,7 +1957,7 @@ main(int argc, char *argv[])
if(inname == NULL)
{
if(verbose > 0) show_result();
return 0;
exit(0);
}
if(pngcrush_mode == EXTENSION_MODE)
@@ -1905,7 +2007,7 @@ main(int argc, char *argv[])
#endif
{
fprintf(STDERR,"could not create directory %s\n",directory_name);
return 1;
exit(1);
}
}
out_string[0] = '\0';
@@ -1930,8 +2032,6 @@ main(int argc, char *argv[])
outname=out_string;
}
output_color_type=force_output_color_type;
output_bit_depth=force_output_bit_depth;
if(nosave < 2)
{
@@ -1944,10 +2044,18 @@ main(int argc, char *argv[])
}
number_of_open_files++;
already_crushed = 0;
idat_length[0]=measure_idats(fpin);
FCLOSE(fpin);
if(already_crushed)
{
fprintf(STDERR, "File has already been crushed: %s\n", inname);
continue;
}
if(verbose > 0)
{
fprintf(STDERR," %s IDAT length in input file = %8lu\n",
@@ -1962,7 +2070,9 @@ main(int argc, char *argv[])
idat_length[0]=1;
#ifdef PNGCRUSH_COUNT_COLORS
if (input_color_type == 2 || input_color_type == 4 || input_color_type == 6)
output_color_type = input_color_type;
if (force_output_color_type == 8 && (input_color_type == 2 ||
input_color_type == 4 || input_color_type == 6))
/* check for unused alpha channel or single transparent color */
{
int alpha_status;
@@ -1979,8 +2089,20 @@ main(int argc, char *argv[])
FCLOSE(fpin);
if(alpha_status)
/* TO DO */;
if (it_is_opaque)
{
if (output_color_type == 4)
output_color_type=0;
else if (output_color_type == 6)
output_color_type=2;
}
if (reduce_to_gray)
{
if (output_color_type == 2)
output_color_type=0;
else if (output_color_type == 6)
output_color_type=4;
}
}
#if 0 /* TO DO */
@@ -1996,8 +2118,16 @@ main(int argc, char *argv[])
/* TO DO */
}
#endif
if(force_output_color_type == 8 && input_color_type != output_color_type)
{
P1 ("setting output color type to %d\n",output_color_type);
force_output_color_type = output_color_type;
}
#endif /* PNGCRUSH_COUNT_COLORS */
output_color_type=force_output_color_type;
output_bit_depth=force_output_bit_depth;
if(!methods_specified || try_method[0] == 0)
{
for (i=1; i<=DEFAULT_METHODS; i++) try_method[i]=0;
@@ -2044,7 +2174,7 @@ main(int argc, char *argv[])
{
fprintf(STDERR, "Could not open output file %s\n", outname);
FCLOSE(fpin);
return 1;
exit(1);
}
number_of_open_files++;
@@ -2152,14 +2282,14 @@ main(int argc, char *argv[])
P1(" st_ino=%d, st_size=%d\n\n", (int)stat_in.st_ino,
(int)stat_in.st_size);
FCLOSE(fpin);
return 1;
exit(1);
}
#endif
if ((fpout = FOPEN(outname, "wb")) == NULL)
{
fprintf(STDERR, "Could not open output file %s\n", outname);
FCLOSE(fpin);
return 1;
exit(1);
}
number_of_open_files++;
@@ -2170,6 +2300,7 @@ main(int argc, char *argv[])
Try
{
png_uint_32 row_length;
png_debug(0, "Allocating read and write structures\n");
#ifdef PNG_USER_MEM_SUPPORTED
read_ptr = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, (png_voidp)NULL,
@@ -2962,23 +3093,23 @@ main(int argc, char *argv[])
#ifdef PNG_FLOATING_POINT_SUPPORTED
{
int unit;
double width, height;
double scal_width, scal_height;
if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &width, &height))
if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width, &scal_height))
{
png_set_sCAL(write_ptr, write_info_ptr, unit, width, height);
png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height);
}
}
#else
#ifdef PNG_FIXED_POINT_SUPPORTED
{
int unit;
png_charp width, height;
png_charp scal_width, scal_height;
if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &width, &height))
if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width, &scal_height))
{
if(keep_chunk("sCAL",argv))
png_set_sCAL_s(write_ptr, write_info_ptr, unit, width, height);
png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, scal_height);
}
}
#endif
@@ -3177,6 +3308,12 @@ main(int argc, char *argv[])
#define LARGE_PNGCRUSH
#ifdef PNGCRUSH_MULTIPLE_ROWS
rows_at_a_time=max_rows_at_a_time;
if(rows_at_a_time == 0 || rows_at_a_time < height)
rows_at_a_time=height;
#endif
#ifndef LARGE_PNGCRUSH
{
png_uint_32 rowbytes_s;
@@ -3186,7 +3323,11 @@ main(int argc, char *argv[])
rowbytes_s = (png_size_t)rowbytes;
if(rowbytes == (png_uint_32)rowbytes_s)
row_buf = png_malloc(read_ptr, rowbytes+2 );
#ifdef PNGCRUSH_MULTIPLE_ROWS
row_buf = png_malloc(read_ptr, rows_at_a_time*rowbytes+16);
#else
row_buf = png_malloc(read_ptr, rowbytes+16);
#endif
else
{
fprintf(STDERR, "rowbytes= %d\n",rowbytes);
@@ -3195,14 +3336,18 @@ main(int argc, char *argv[])
}
#else
{
png_uint_32 read_row_length, write_row_length, row_length;
png_uint_32 read_row_length, write_row_length;
read_row_length=
(png_uint_32)(png_get_rowbytes(read_ptr, read_info_ptr));
write_row_length=
(png_uint_32)(png_get_rowbytes(write_ptr, write_info_ptr));
row_length = read_row_length > write_row_length ?
read_row_length : write_row_length;
#ifdef PNGCRUSH_MULTIPLE_ROWS
row_buf = (png_bytep)png_malloc(read_ptr,rows_at_a_time*row_length+16);
#else
row_buf = (png_bytep)png_malloc(read_ptr,row_length+16);
#endif
}
#endif
@@ -3219,6 +3364,13 @@ main(int argc, char *argv[])
*/
}
#ifdef PNGCRUSH_MULTIPLE_ROWS
row_pointers = (png_bytepp)png_malloc(read_ptr,
rows_at_a_time*sizeof(png_bytepp));
for (i=0; i<rows_at_a_time; i++)
row_pointers[i]=row_buf + i*row_length;
#endif
P2("allocated rowbuf.\n");
png_crush_pause();
@@ -3231,16 +3383,33 @@ main(int argc, char *argv[])
t_start = t_stop;
for (pass = 0; pass < num_pass; pass++)
{
#ifdef PNGCRUSH_MULTIPLE_ROWS
png_uint_32 num_rows;
#endif
png_debug(0, "\nBegin Pass\n");
#ifdef PNGCRUSH_MULTIPLE_ROWS
num_rows=rows_at_a_time;
for (y = 0; y < height; y+=rows_at_a_time)
#else
for (y = 0; y < height; y++)
#endif
{
#ifdef PNGCRUSH_MULTIPLE_ROWS
if (y+num_rows > height) num_rows=height-y;
png_read_rows(read_ptr, row_pointers, (png_bytepp)NULL, num_rows);
#else
png_read_row(read_ptr, row_buf, (png_bytep)NULL);
#endif
if(nosave == 0)
{
t_stop = (TIME_T)clock();
t_decode += (t_stop - t_start);
t_start = t_stop;
#ifdef PNGCRUSH_MULTIPLE_ROWS
png_write_rows(write_ptr, row_pointers, num_rows);
#else
png_write_row(write_ptr, row_buf);
#endif
t_stop = (TIME_T)clock();
t_encode += (t_stop - t_start);
t_start = t_stop;
@@ -3251,7 +3420,7 @@ main(int argc, char *argv[])
if(nosave)
{
t_stop = (TIME_T)clock();
t_decode += (t_stop - t_start);
t_decode += (t_stop - t_start);
t_start = t_stop;
}
@@ -3430,8 +3599,17 @@ main(int argc, char *argv[])
png_debug(0, "Destroying data structs\n");
if(row_buf != (png_bytep)NULL)
{
png_free(read_ptr, row_buf);
row_buf = (png_bytep)NULL;
row_buf = (png_bytep)NULL;
}
#ifdef PNGCRUSH_MULTIPLE_ROWS
if(row_pointers != (png_bytepp)NULL)
{
png_free(read_ptr, row_pointers);
row_pointers = (png_bytepp)NULL;
}
#endif
png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
if(nosave == 0)
{
@@ -3448,6 +3626,13 @@ main(int argc, char *argv[])
fprintf(stderr, " pngcrush caught libpng error:\n %s\n\n",msg);
if(row_buf != NULL)png_free(read_ptr, row_buf);
row_buf = (png_bytep)NULL;
#ifdef PNGCRUSH_MULTIPLE_ROWS
if(row_pointers != (png_bytepp)NULL)
{
png_free(read_ptr, row_pointers);
row_pointers = (png_bytepp)NULL;
}
#endif
if(nosave == 0)
{
png_destroy_info_struct(write_ptr, &write_end_info_ptr);
@@ -3484,7 +3669,7 @@ main(int argc, char *argv[])
{
free(png_row_filters); png_row_filters=NULL;
}
return 1;
exit(1);
}
number_of_open_files++;
@@ -3555,7 +3740,9 @@ main(int argc, char *argv[])
free(png_row_filters); png_row_filters=NULL;
}
if(verbose > 0) show_result();
return 0;
if(pngcrush_must_exit)
exit(0);
return(0);
}
} /* end of loop on input files */
}
@@ -3652,7 +3839,11 @@ png_measure_idat(png_structp png_ptr)
#else
if (!png_memcmp(chunk_name, png_IDAT, 4))
#endif
{
sum_idat_length += length;
if(length > crushed_idat_size)
already_crushed++;
}
if(verbose > 1)
{
@@ -3714,7 +3905,6 @@ png_measure_idat(png_structp png_ptr)
#ifdef PNGCRUSH_COUNT_COLORS
#define USE_HASHCODE
static int result, num_rgba;
static int it_is_gray, it_is_opaque;
static int hashmiss, hashinserts;
int
count_colors(FILE *fpin)
@@ -3722,7 +3912,7 @@ count_colors(FILE *fpin)
/* Copyright (C) 2000 Glenn Randers-Pehrson (randeg@alum.rpi.edu)
See notice in pngcrush.c for conditions of use and distribution */
int bit_depth, color_type, interlace_type, filter_type, compression_type;
png_uint_32 width, height, rowbytes, channels;
png_uint_32 rowbytes, channels;
int i;
int pass, num_pass;
@@ -3749,7 +3939,7 @@ count_colors(FILE *fpin)
int png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};
result=0;
it_is_gray=1;
reduce_to_gray=1;
it_is_opaque=1;
hashmiss=0;
hashinserts=0;
@@ -3808,6 +3998,9 @@ count_colors(FILE *fpin)
else
channels=1;
if(color_type == 0 || color_type == 3 || color_type == 4)
reduce_to_gray = 0;
if(bit_depth == 8)
{
if(interlace_type)
@@ -3817,7 +4010,7 @@ count_colors(FILE *fpin)
rowbytes = png_get_rowbytes(read_ptr, read_info_ptr);
row_buf = png_malloc(read_ptr, rowbytes+2);
row_buf = png_malloc(read_ptr, rowbytes+16);
for (pass = 0; pass < num_pass; pass++)
{
@@ -3826,16 +4019,24 @@ count_colors(FILE *fpin)
png_uint_32 pass_height, pass_width, y;
png_debug(0, "\nBegin Pass\n");
pass_height = (height - png_pass_ystart[pass]
if (interlace_type)
{
pass_height = (height - png_pass_ystart[pass]
+ png_pass_yinc[pass] - 1) / png_pass_yinc[pass];
pass_width = (width - png_pass_start[pass]
pass_width = (width - png_pass_start[pass]
+ png_pass_inc[pass] - 1) / png_pass_inc[pass];
}
else
{
pass_height=height;
pass_width=width;
}
for (y = 0; y < pass_height; y++)
{
png_uint_32 x;
png_read_row(read_ptr, row_buf, (png_bytep)NULL);
if(result < 2)
if(result < 2 || it_is_opaque || reduce_to_gray)
{
if(color_type==2)
{
@@ -3846,11 +4047,13 @@ count_colors(FILE *fpin)
#endif
png_uint_32 rgba_high = (255<<24)|(*(rp)<<16)|(*(rp+1)<<8)|
*(rp+2);
assert(num_rgba < 258);
rgba_hi[num_rgba]=rgba_high;
#ifdef USE_HASHCODE
if(it_is_gray &&
if(reduce_to_gray &&
((*(rp)) != (*(rp+1)) || (*(rp)) != (*(rp+2))))
it_is_gray=0;
reduce_to_gray=0;
#ifdef USE_HASHCODE
/*
* R G B mask
* 11,111 0,0000, 0000 0x3e00
@@ -3862,6 +4065,7 @@ count_colors(FILE *fpin)
hashcode=(int)(((rgba_high>>10)&0x3e00)|
((rgba_high>> 7)&0x01f0)|
((rgba_high>> 4)&0x000f));
assert(hashcode < 16385);
if (hash[hashcode] < 0)
{
hash[hashcode] = i = num_rgba;
@@ -3889,6 +4093,7 @@ count_colors(FILE *fpin)
rgba_hi[j]=rgba_hi[j-1];
rgba_frequency[j]=rgba_frequency[j-1];
}
assert(start+1 < 258);
rgba_hi[start+1]=rgba_high;
rgba_frequency[start+1]=0;
for(j=0; j<16384; j++)
@@ -3910,6 +4115,7 @@ count_colors(FILE *fpin)
else if(i == num_rgba)
num_rgba++;
#endif
assert(i < 258);
++rgba_frequency[i];
}
}
@@ -3922,13 +4128,14 @@ count_colors(FILE *fpin)
#endif
png_uint_32 rgba_high = (*(rp+3)<<24)|(*(rp)<<16)|
(*(rp+1)<<8)|*(rp+2);
assert(rp-row_buf+3 < rowbytes);
rgba_hi[num_rgba]=rgba_high;
#ifdef USE_HASHCODE
if(it_is_gray &&
if(reduce_to_gray &&
((*(rp)) != (*(rp+1)) || (*(rp)) != (*(rp+2))))
it_is_gray=0;
reduce_to_gray=0;
if(it_is_opaque && (*(rp+3)) != 255)
it_is_opaque=0;
#ifdef USE_HASHCODE
/*
* A R G B mask
* 11,1 000,0 000,0 000 0x3800
@@ -3942,6 +4149,7 @@ count_colors(FILE *fpin)
((rgba_high>>12)&0x0780)|
((rgba_high>> 8)&0x0078)|
((rgba_high>> 4)&0x0007));
assert(hashcode < 16385);
if (hash[hashcode] < 0)
{
hash[hashcode] = i = num_rgba;
@@ -3959,11 +4167,11 @@ count_colors(FILE *fpin)
hashmiss += (i-start);
if(i == num_rgba)
{
int j;
if (i > 256)
result=2;
else
{
int j;
for(j=num_rgba; j>start+1; j--)
{
rgba_hi[j]=rgba_hi[j-1];
@@ -4002,10 +4210,11 @@ count_colors(FILE *fpin)
#endif
png_uint_32 rgba_high = (*(rp+1)<<24)|(*(rp)<<16)|
(*(rp)<<8)|(*rp);
assert(rp-row_buf+1 < rowbytes);
rgba_hi[num_rgba]=rgba_high;
#ifdef USE_HASHCODE
if(it_is_opaque && (*(rp+1)) != 255)
it_is_opaque=0;
#ifdef USE_HASHCODE
/*
* A G mask
* 11,1111, 0000,0000 0x3f00
@@ -4032,11 +4241,11 @@ count_colors(FILE *fpin)
hashmiss += (i-start);
if(i == num_rgba)
{
int j;
if (i > 256)
result=2;
else
{
int j;
for(j=num_rgba; j>start+1; j--)
{
rgba_hi[j]=rgba_hi[j-1];
@@ -4078,6 +4287,8 @@ count_colors(FILE *fpin)
else
{
/* TO DO: 16-bit support */
reduce_to_gray=0;
it_is_opaque=0;
result=0;
}
@@ -4117,8 +4328,8 @@ count_colors(FILE *fpin)
hashinserts);
}
P2 ("Finished checking alphas, result=%d\n",result);
if(it_is_gray)
P1 ("The image is all gray.\n");
if(reduce_to_gray)
P1 ("The truecolor image is all gray and will be reduced.\n");
if(it_is_opaque)
P1 ("The image is opaque.\n");
}

16
pngcrush.h
View File

@@ -6,6 +6,10 @@
#ifndef PNGCRUSH_H
#define PNGCRUSH_H
/*
#include <malloc.h>
*/
#ifdef PNG_LIBPNG_VER
#define PNGCRUSH_LIBPNG_VER PNG_LIBPNG_VER
#else
@@ -14,13 +18,21 @@
#define PNGCRUSH_LIBPNG_VER 10007
#endif
#ifndef PNG_NO_ZALLOC_ZERO
# define PNG_NO_ZALLOC_ZERO /* speeds it up a little */
#endif
#ifndef PNG_USER_MEM_SUPPORTED
# define PNG_USER_MEM_SUPPORTED
#endif
#define PNG_NO_LEGACY_SUPPORTED
#ifndef PNG_NO_LEGACY_SUPPORTED
# define PNG_NO_LEGACY_SUPPORTED
#endif
#define PNG_SETJMP_NOT_SUPPORTED
#ifndef PNG_SETJMP_NOT_SUPPORTED
# define PNG_SETJMP_NOT_SUPPORTED
#endif
#if PNGCRUSH_LIBPNG_VER > 10006
#define PNG_NO_FLOATING_POINT_SUPPORTED

2
pngerror.c
View File

@@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

549
pnggccrd.c
View File

@@ -6,7 +6,7 @@
* and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
* for Intel's performance analysis of the MMX vs. non-MMX code.
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng version 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation
@@ -122,11 +122,33 @@
* - fixed up both versions of mmxsupport() (ORIG_THAT_USED_TO_CLOBBER_EBX
* macro determines which is used); original not yet tested.
*
* 20000213:
* - When compiling with gcc, be sure to use -fomit-frame-pointer
*
* 20000319:
* - fixed a register-name typo in png_do_read_interlace(), default (MMX) case,
* pass == 4 or 5, that caused visible corruption of interlaced images
*
* - When compiling with gcc, be sure to use -fomit-frame-pointer
* 20000623:
* - Various problems were reported with gcc 2.95.2 in the Cygwin environment,
* many of the form "forbidden register 0 (ax) was spilled for class AREG."
* This is explained at http://gcc.gnu.org/fom_serv/cache/23.html, and
* Chuck Wilson supplied a patch involving dummy output registers. See
* http://sourceforge.net/bugs/?func=detailbug&bug_id=108741&group_id=5624
* for the original (anonymous) SourceForge bug report.
*
* 20000706:
* - Chuck Wilson passed along these remaining gcc 2.95.2 errors:
* pnggccrd.c: In function `png_combine_row':
* pnggccrd.c:525: more than 10 operands in `asm'
* pnggccrd.c:669: more than 10 operands in `asm'
* pnggccrd.c:828: more than 10 operands in `asm'
* pnggccrd.c:994: more than 10 operands in `asm'
* pnggccrd.c:1177: more than 10 operands in `asm'
* They are all the same problem and can be worked around by using the
* global _unmask variable unconditionally, not just in the -fPIC case.
* Apparently earlier versions of gcc also have the problem with more than
* 10 operands; they just don't report it. Much strangeness ensues, etc.
*/
#define PNG_INTERNAL
@@ -144,9 +166,9 @@ static const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
static const int png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1};
#endif
// djgpp and Win32 add their own underscores to global variables,
// djgpp, Win32, and Cygwin add their own underscores to global variables,
// so define them without:
#if (defined __DJGPP__) || defined (WIN32)
#if defined(__DJGPP__) || defined(WIN32) || defined(__CYGWIN__)
# define _unmask unmask
# define _const4 const4
# define _const6 const6
@@ -174,9 +196,13 @@ static const int png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1};
/* These constants are used in the inlined MMX assembly code.
Ignore gcc's "At top level: defined but not used" warnings. */
#ifdef __PIC__
static int _unmask; // not enough regs when compiling with -fPIC, so...
#endif
/* GRR 20000706: originally _unmask was needed only when compiling with -fPIC,
* since that case uses the %ebx register for indexing the Global Offset Table
* and there were no other registers available. But gcc 2.95 and later emit
* "more than 10 operands in `asm'" errors when %ebx is used to preload unmask
* in the non-PIC case, so we'll just use the global unconditionally now.
*/
static int _unmask;
static unsigned long long _mask8_0 = 0x0102040810204080LL;
@@ -430,23 +456,19 @@ fflush(stderr);
{
png_uint_32 len;
int diff;
#ifndef __PIC__
int unmask = ~mask;
#else
int dummy_value_a; // fix 'forbidden register spilled' error
int dummy_value_d;
int dummy_value_c;
int dummy_value_S;
int dummy_value_D;
_unmask = ~mask; // global variable for -fPIC version
#endif
srcptr = png_ptr->row_buf + 1;
dstptr = row;
len = png_ptr->width &~7; // reduce to multiple of 8
diff = png_ptr->width & 7; // amount lost
__asm__ (
#ifdef __PIC__
__asm__ __volatile__ (
"movd _unmask, %%mm7 \n\t" // load bit pattern
#else
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
#endif
"psubb %%mm6, %%mm6 \n\t" // zero mm6
"punpcklbw %%mm7, %%mm7 \n\t"
"punpcklwd %%mm7, %%mm7 \n\t"
@@ -498,21 +520,22 @@ fflush(stderr);
"end8: \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=a" (dummy_value_a), // output regs (dummy)
"=d" (dummy_value_d),
"=c" (dummy_value_c),
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (srcptr), // esi // input regs
"D" (dstptr), // edi
"a" (diff), // eax
#ifndef __PIC__
"b" (unmask), // ebx // Global Offset Table idx
#endif
"c" (len), // ecx
"d" (mask) // edx
: "3" (srcptr), // esi // input regs
"4" (dstptr), // edi
"0" (diff), // eax
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
"2" (len), // ecx
"1" (mask) // edx
: "%esi", "%edi", "%eax", // clobber list
"%ecx", "%edx"
// : // clobber list
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm4", "%mm6", "%mm7"
: "%mm0", "%mm4", "%mm6", "%mm7"
#endif
);
}
@@ -550,23 +573,19 @@ fflush(stderr);
{
png_uint_32 len;
int diff;
#ifndef __PIC__
int unmask = ~mask;
#else
int dummy_value_a; // fix 'forbidden register spilled' error
int dummy_value_d;
int dummy_value_c;
int dummy_value_S;
int dummy_value_D;
_unmask = ~mask; // global variable for -fPIC version
#endif
srcptr = png_ptr->row_buf + 1;
dstptr = row;
len = png_ptr->width &~7; // reduce to multiple of 8
diff = png_ptr->width & 7; // amount lost
__asm__ (
#ifdef __PIC__
__asm__ __volatile__ (
"movd _unmask, %%mm7 \n\t" // load bit pattern
#else
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
#endif
"psubb %%mm6, %%mm6 \n\t" // zero mm6
"punpcklbw %%mm7, %%mm7 \n\t"
"punpcklwd %%mm7, %%mm7 \n\t"
@@ -633,21 +652,22 @@ fflush(stderr);
"end16: \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=a" (dummy_value_a), // output regs (dummy)
"=d" (dummy_value_d),
"=c" (dummy_value_c),
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (srcptr), // esi // input regs
"D" (dstptr), // edi
"a" (diff), // eax
#ifndef __PIC__
"b" (unmask), // ebx // Global Offset Table idx
#endif
"c" (len), // ecx
"d" (mask) // edx
: "3" (srcptr), // esi // input regs
"4" (dstptr), // edi
"0" (diff), // eax
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
"2" (len), // ecx
"1" (mask) // edx
: "%esi", "%edi", "%eax", // clobber list
"%ecx", "%edx"
// : // clobber list
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1",
: "%mm0", "%mm1",
"%mm4", "%mm5", "%mm6", "%mm7"
#endif
);
@@ -686,23 +706,19 @@ fflush(stderr);
{
png_uint_32 len;
int diff;
#ifndef __PIC__
int unmask = ~mask;
#else
int dummy_value_a; // fix 'forbidden register spilled' error
int dummy_value_d;
int dummy_value_c;
int dummy_value_S;
int dummy_value_D;
_unmask = ~mask; // global variable for -fPIC version
#endif
srcptr = png_ptr->row_buf + 1;
dstptr = row;
len = png_ptr->width &~7; // reduce to multiple of 8
diff = png_ptr->width & 7; // amount lost
__asm__ (
#ifdef __PIC__
__asm__ __volatile__ (
"movd _unmask, %%mm7 \n\t" // load bit pattern
#else
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
#endif
"psubb %%mm6, %%mm6 \n\t" // zero mm6
"punpcklbw %%mm7, %%mm7 \n\t"
"punpcklwd %%mm7, %%mm7 \n\t"
@@ -784,21 +800,22 @@ fflush(stderr);
"end24: \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=a" (dummy_value_a), // output regs (dummy)
"=d" (dummy_value_d),
"=c" (dummy_value_c),
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (srcptr), // esi // input regs
"D" (dstptr), // edi
"a" (diff), // eax
#ifndef __PIC__
"b" (unmask), // ebx // Global Offset Table idx
#endif
"c" (len), // ecx
"d" (mask) // edx
: "3" (srcptr), // esi // input regs
"4" (dstptr), // edi
"0" (diff), // eax
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
"2" (len), // ecx
"1" (mask) // edx
: "%esi", "%edi", "%eax", // clobber list
"%ecx", "%edx"
// : // clobber list
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2",
: "%mm0", "%mm1", "%mm2",
"%mm4", "%mm5", "%mm6", "%mm7"
#endif
);
@@ -837,23 +854,19 @@ fflush(stderr);
{
png_uint_32 len;
int diff;
#ifndef __PIC__
int unmask = ~mask;
#else
int dummy_value_a; // fix 'forbidden register spilled' error
int dummy_value_d;
int dummy_value_c;
int dummy_value_S;
int dummy_value_D;
_unmask = ~mask; // global variable for -fPIC version
#endif
srcptr = png_ptr->row_buf + 1;
dstptr = row;
len = png_ptr->width &~7; // reduce to multiple of 8
diff = png_ptr->width & 7; // amount lost
__asm__ (
#ifdef __PIC__
__asm__ __volatile__ (
"movd _unmask, %%mm7 \n\t" // load bit pattern
#else
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
#endif
"psubb %%mm6, %%mm6 \n\t" // zero mm6
"punpcklbw %%mm7, %%mm7 \n\t"
"punpcklwd %%mm7, %%mm7 \n\t"
@@ -942,21 +955,22 @@ fflush(stderr);
"end32: \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=a" (dummy_value_a), // output regs (dummy)
"=d" (dummy_value_d),
"=c" (dummy_value_c),
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (srcptr), // esi // input regs
"D" (dstptr), // edi
"a" (diff), // eax
#ifndef __PIC__
"b" (unmask), // ebx // Global Offset Table idx
#endif
"c" (len), // ecx
"d" (mask) // edx
: "3" (srcptr), // esi // input regs
"4" (dstptr), // edi
"0" (diff), // eax
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
"2" (len), // ecx
"1" (mask) // edx
: "%esi", "%edi", "%eax", // clobber list
"%ecx", "%edx"
// : // clobber list
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2", "%mm3",
: "%mm0", "%mm1", "%mm2", "%mm3",
"%mm4", "%mm5", "%mm6", "%mm7"
#endif
);
@@ -995,23 +1009,19 @@ fflush(stderr);
{
png_uint_32 len;
int diff;
#ifndef __PIC__
int unmask = ~mask;
#else
int dummy_value_a; // fix 'forbidden register spilled' error
int dummy_value_d;
int dummy_value_c;
int dummy_value_S;
int dummy_value_D;
_unmask = ~mask; // global variable for -fPIC version
#endif
srcptr = png_ptr->row_buf + 1;
dstptr = row;
len = png_ptr->width &~7; // reduce to multiple of 8
diff = png_ptr->width & 7; // amount lost
__asm__ (
#ifdef __PIC__
__asm__ __volatile__ (
"movd _unmask, %%mm7 \n\t" // load bit pattern
#else
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
#endif
"psubb %%mm6, %%mm6 \n\t" // zero mm6
"punpcklbw %%mm7, %%mm7 \n\t"
"punpcklwd %%mm7, %%mm7 \n\t"
@@ -1117,21 +1127,22 @@ fflush(stderr);
"end48: \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=a" (dummy_value_a), // output regs (dummy)
"=d" (dummy_value_d),
"=c" (dummy_value_c),
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (srcptr), // esi // input regs
"D" (dstptr), // edi
"a" (diff), // eax
#ifndef __PIC__
"b" (unmask), // ebx // Global Offset Table idx
#endif
"c" (len), // ecx
"d" (mask) // edx
: "3" (srcptr), // esi // input regs
"4" (dstptr), // edi
"0" (diff), // eax
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
"2" (len), // ecx
"1" (mask) // edx
: "%esi", "%edi", "%eax", // clobber list
"%ecx", "%edx"
// : // clobber list
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2", "%mm3",
: "%mm0", "%mm1", "%mm2", "%mm3",
"%mm4", "%mm5", "%mm6", "%mm7"
#endif
);
@@ -1453,7 +1464,10 @@ fflush(stderr);
{
if (((pass == 0) || (pass == 1)) && width)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $21, %%edi \n\t"
// (png_pass_inc[pass] - 1)*pixel_bytes
@@ -1482,22 +1496,27 @@ fflush(stderr);
"jnz .loop3_pass0 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width) // ecx
// doesn't work "i" (0x0000000000FFFFFFLL) // %1 (a.k.a. _const4)
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2", "%mm3", "%mm4"
: "%mm0", "%mm1", "%mm2", "%mm3", "%mm4"
#endif
);
}
else if (((pass == 2) || (pass == 3)) && width)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $9, %%edi \n\t"
// (png_pass_inc[pass] - 1)*pixel_bytes
@@ -1520,15 +1539,17 @@ fflush(stderr);
"jnz .loop3_pass2 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, ..., %mm2 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2"
: "%mm0", "%mm1", "%mm2"
#endif
);
}
@@ -1543,7 +1564,10 @@ fflush(stderr);
// png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
// sptr points at last pixel in pre-expanded row
// dp points at last pixel position in expanded row
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $3, %%esi \n\t"
"subl $9, %%edi \n\t"
// (png_pass_inc[pass] + 1)*pixel_bytes
@@ -1569,15 +1593,17 @@ fflush(stderr);
"jnz .loop3_pass4 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, ..., %mm3 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2", "%mm3"
: "%mm0", "%mm1", "%mm2", "%mm3"
#endif
);
}
@@ -1609,7 +1635,10 @@ fflush(stderr);
width -= width_mmx; // 0-3 pixels => 0-3 bytes
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $3, %%esi \n\t"
"subl $31, %%edi \n\t"
@@ -1636,15 +1665,17 @@ fflush(stderr);
"jnz .loop1_pass0 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2", "%mm3", "%mm4"
: "%mm0", "%mm1", "%mm2", "%mm3", "%mm4"
#endif
);
}
@@ -1684,7 +1715,10 @@ fflush(stderr);
width -= width_mmx; // 0-3 pixels => 0-3 bytes
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $3, %%esi \n\t"
"subl $15, %%edi \n\t"
@@ -1702,15 +1736,17 @@ fflush(stderr);
"jnz .loop1_pass2 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1"
: "%mm0", "%mm1"
#endif
);
}
@@ -1732,7 +1768,10 @@ fflush(stderr);
width -= width_mmx; // 0-3 pixels => 0-3 bytes
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $7, %%esi \n\t"
"subl $15, %%edi \n\t"
@@ -1749,15 +1788,17 @@ fflush(stderr);
"jnz .loop1_pass4 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (none)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1"
: "%mm0", "%mm1"
#endif
);
}
@@ -1784,7 +1825,10 @@ fflush(stderr);
width -= width_mmx; // 0,1 pixels => 0,2 bytes
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $2, %%esi \n\t"
"subl $30, %%edi \n\t"
@@ -1804,15 +1848,17 @@ fflush(stderr);
"jnz .loop2_pass0 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1"
: "%mm0", "%mm1"
#endif
);
}
@@ -1838,7 +1884,10 @@ fflush(stderr);
width -= width_mmx; // 0,1 pixels => 0,2 bytes
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $2, %%esi \n\t"
"subl $14, %%edi \n\t"
@@ -1856,15 +1905,17 @@ fflush(stderr);
"jnz .loop2_pass2 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1"
: "%mm0", "%mm1"
#endif
);
}
@@ -1890,7 +1941,10 @@ fflush(stderr);
width -= width_mmx; // 0,1 pixels => 0,2 bytes
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $2, %%esi \n\t"
"subl $6, %%edi \n\t"
@@ -1904,15 +1958,17 @@ fflush(stderr);
"jnz .loop2_pass4 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0"
: "%mm0"
#endif
);
}
@@ -1948,12 +2004,15 @@ fflush(stderr);
*/
if (width_mmx)
{
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
#ifdef GRR_DEBUG
FILE *junk = fopen("junk.4bytes", "wb");
if (junk)
fclose(junk);
#endif /* GRR_DEBUG */
__asm__ (
__asm__ __volatile__ (
"subl $4, %%esi \n\t"
"subl $60, %%edi \n\t"
@@ -1976,15 +2035,17 @@ fflush(stderr);
"jnz .loop4_pass0 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1"
: "%mm0", "%mm1"
#endif
);
}
@@ -2010,7 +2071,10 @@ fflush(stderr);
width -= width_mmx; // 0,1 pixels => 0,4 bytes
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $4, %%esi \n\t"
"subl $28, %%edi \n\t"
@@ -2029,15 +2093,17 @@ fflush(stderr);
"jnz .loop4_pass2 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1"
: "%mm0", "%mm1"
#endif
);
}
@@ -2063,7 +2129,10 @@ fflush(stderr);
width -= width_mmx; // 0,1 pixels => 0,4 bytes
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $4, %%esi \n\t"
"subl $12, %%edi \n\t"
@@ -2080,15 +2149,17 @@ fflush(stderr);
"jnz .loop4_pass4 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width_mmx) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1"
: "%mm0", "%mm1"
#endif
);
}
@@ -2122,12 +2193,15 @@ fflush(stderr);
{
// source is 8-byte RRGGBBAA
// dest is 64-byte RRGGBBAA RRGGBBAA RRGGBBAA RRGGBBAA ...
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
#ifdef GRR_DEBUG
FILE *junk = fopen("junk.8bytes", "wb");
if (junk)
fclose(junk);
#endif /* GRR_DEBUG */
__asm__ (
__asm__ __volatile__ (
"subl $56, %%edi \n\t" // start of last block
".loop8_pass0: \n\t"
@@ -2146,15 +2220,17 @@ fflush(stderr);
"jnz .loop8_pass0 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0"
: "%mm0"
#endif
);
}
@@ -2166,7 +2242,10 @@ fflush(stderr);
width -= width_mmx;
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $24, %%edi \n\t" // start of last block
".loop8_pass2: \n\t"
@@ -2181,15 +2260,17 @@ fflush(stderr);
"jnz .loop8_pass2 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0"
: "%mm0"
#endif
);
}
@@ -2202,7 +2283,10 @@ fflush(stderr);
width -= width_mmx;
if (width_mmx)
{
__asm__ (
int dummy_value_c; // fix 'forbidden register spilled'
int dummy_value_S;
int dummy_value_D;
__asm__ __volatile__ (
"subl $8, %%edi \n\t" // start of last block
".loop8_pass4: \n\t"
@@ -2215,15 +2299,17 @@ fflush(stderr);
"jnz .loop8_pass4 \n\t"
"EMMS \n\t" // DONE
: // output regs (none)
: "=c" (dummy_value_c), // output regs (dummy)
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (sptr), // esi // input regs
"D" (dp), // edi
"c" (width) // ecx
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width) // ecx
: "%esi", "%edi", "%ecx" // clobber list
// : // clobber list
#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0"
: "%mm0"
#endif
);
}
@@ -2408,11 +2494,14 @@ png_read_filter_row_mmx_avg(png_row_infop row_info, png_bytep row,
png_bytep prev_row)
{
int bpp;
int dummy_value_c; // fix 'forbidden register 2 (cx) was spilled' error
int dummy_value_S;
int dummy_value_D;
// int diff; GRR: global now (shortened to dif/_dif)
bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel
_FullLength = row_info->rowbytes; // # of bytes to filter
__asm__ (
__asm__ __volatile__ (
// Init address pointers and offset
//GRR "movl row, %%edi \n\t" // edi ==> Avg(x)
"xorl %%ebx, %%ebx \n\t" // ebx ==> x
@@ -2467,14 +2556,16 @@ png_read_filter_row_mmx_avg(png_row_infop row_info, png_bytep row,
"subl %%eax, %%ecx \n\t" // drop over bytes from original length
"movl %%ecx, _MMXLength \n\t"
: // output regs/vars here, e.g., "=m" (_MMXLength) instead of final instr
: "=c" (dummy_value_c), // output regs/vars here, e.g., "=m" (_MMXLength) instead of final instr
"=S" (dummy_value_S),
"=D" (dummy_value_D)
: "S" (prev_row), // esi // input regs
"D" (row), // edi
"c" (bpp) // ecx
: "1" (prev_row), // esi // input regs
"2" (row), // edi
"0" (bpp) // ecx
: "%eax", "%ebx", "%ecx", // clobber list
"%edx", "%edi", "%esi"
: "%eax", "%ebx", // clobber list
"%edx"
// GRR: INCLUDE "memory" as clobbered? (_dif, _MMXLength) PROBABLY
);

2
pngget.c
View File

@@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngmem.c
View File

@@ -1,7 +1,7 @@
/* pngmem.c - stub functions for memory allocation
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

4
pngpread.c
View File

@@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -1036,6 +1036,7 @@ png_push_read_tEXt(png_structp png_ptr, png_infop info_ptr)
png_set_text(png_ptr, info_ptr, text_ptr, 1);
png_free(png_ptr, key);
png_free(png_ptr, text_ptr);
}
}
@@ -1219,6 +1220,7 @@ png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)
png_set_text(png_ptr, info_ptr, text_ptr, 1);
png_free(png_ptr, key);
png_free(png_ptr, text_ptr);
}
}

11
pngread.c
View File

@@ -1,7 +1,7 @@
/* pngread.c - read a PNG file
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -62,6 +62,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#endif
{
png_free(png_ptr, png_ptr->zbuf);
png_ptr->zbuf=NULL;
png_destroy_struct(png_ptr);
return (png_structp)NULL;
}
@@ -315,7 +316,7 @@ 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_debug2(0, "Reading %s chunk, length=%d.\n", png_ptr->chunk_name,
png_debug2(0, "Reading %s chunk, length=%lu.\n", png_ptr->chunk_name,
length);
/* This should be a binary subdivision search or a hash for
@@ -465,7 +466,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
const int png_pass_mask[7] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};
#endif
int ret;
png_debug2(1, "in png_read_row (row %d, pass %d)\n",
png_debug2(1, "in png_read_row (row %lu, pass %d)\n",
png_ptr->row_number, png_ptr->pass);
/* save jump buffer and error functions */
if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
@@ -697,7 +698,7 @@ 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 1.0.7rc2
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.8rc1
*/
void PNGAPI
@@ -746,7 +747,7 @@ 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 1.0.7rc2
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.8rc1
*/
void PNGAPI
png_read_image(png_structp png_ptr, png_bytepp image)

27
pngrio.c
View File

@@ -1,7 +1,7 @@
/* pngrio.c - functions for data input
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -47,13 +47,16 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
/* fread() returns 0 on error, so it is OK to store this in a png_size_t
* instead of an int, which is what fread() actually returns.
*/
#if defined(_WIN32_WCE)
if ( !ReadFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) )
check = 0;
#else
check = (png_size_t)fread(data, (png_size_t)1, length,
(FILE *)png_ptr->io_ptr);
(png_FILE_p)png_ptr->io_ptr);
#endif
if (check != length)
{
png_error(png_ptr, "Read Error");
}
}
#else
/* this is the model-independent version. Since the standard I/O library
@@ -69,14 +72,19 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
int check;
png_byte *n_data;
FILE *io_ptr;
png_FILE_p io_ptr;
/* Check if data really is near. If so, use usual code. */
n_data = (png_byte *)CVT_PTR_NOCHECK(data);
io_ptr = (FILE *)CVT_PTR(png_ptr->io_ptr);
io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
if ((png_bytep)n_data == data)
{
#if defined(_WIN32_WCE)
if ( !ReadFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) )
check = 0;
#else
check = fread(n_data, 1, length, io_ptr);
#endif
}
else
{
@@ -87,7 +95,12 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
do
{
read = MIN(NEAR_BUF_SIZE, remaining);
#if defined(_WIN32_WCE)
if ( !ReadFile((HANDLE)(io_ptr), buf, read, &err, NULL) )
err = 0;
#else
err = fread(buf, (png_size_t)1, read, io_ptr);
#endif
png_memcpy(data, buf, read); /* copy far buffer to near buffer */
if(err != read)
break;
@@ -99,9 +112,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
while (remaining != 0);
}
if ((png_uint_32)check != (png_uint_32)length)
{
png_error(png_ptr, "read Error");
}
}
#endif
#endif

4
pngrtran.c
View File

@@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -1125,7 +1125,7 @@ png_do_read_transformations(png_structp png_ptr)
#if !defined(PNG_USELESS_TESTS_SUPPORTED)
if (png_ptr->row_buf == NULL)
{
#if !defined(PNG_NO_STDIO)
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
char msg[50];
sprintf(msg, "NULL row buffer for row %ld, pass %d", png_ptr->row_number,

77
pngrutil.c
View File

@@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -14,6 +14,30 @@
#define PNG_INTERNAL
#include "png.h"
#if defined(_WIN32_WCE)
/* strtod() function is not supported on WindowsCE */
# ifdef PNG_FLOATING_POINT_SUPPORTED
__inline double strtod(const char *nptr, char **endptr)
{
double result = 0;
int len;
wchar_t *str, *end;
len = MultiByteToWideChar(CP_ACP, 0, nptr, -1, NULL, 0);
str = (wchar_t *)malloc(len * sizeof(wchar_t));
if ( NULL != str )
{
MultiByteToWideChar(CP_ACP, 0, nptr, -1, str, len);
result = wcstod(str, &end);
len = WideCharToMultiByte(CP_ACP, 0, end, -1, NULL, 0, NULL, NULL);
*endptr = (char *)nptr + (strlen(nptr) - len + 1);
free(str);
}
return result;
}
# endif
#endif
#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
/* Grab an unsigned 32-bit integer from a buffer in big-endian format. */
png_uint_32 /* PRIVATE */
@@ -225,11 +249,18 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
}
if (ret != Z_STREAM_END)
{
#if !defined(PNG_NO_STDIO)
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
char umsg[50];
sprintf(umsg,"Incomplete compressed datastream in %s chunk",
png_ptr->chunk_name);
if (ret == Z_BUF_ERROR)
sprintf(umsg,"Buffer error in compressed datastream in %s chunk",
png_ptr->chunk_name);
else if (ret == Z_DATA_ERROR)
sprintf(umsg,"Data error in compressed datastream in %s chunk",
png_ptr->chunk_name);
else
sprintf(umsg,"Incomplete compressed datastream in %s chunk",
png_ptr->chunk_name);
png_warning(png_ptr, umsg);
#else
png_warning(png_ptr,
@@ -246,7 +277,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
}
else /* if (comp_type != PNG_TEXT_COMPRESSION_zTXt) */
{
#if !defined(PNG_NO_STDIO)
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
char umsg[50];
sprintf(umsg, "Unknown zTXt compression type %d", comp_type);
@@ -357,7 +388,7 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
(png_uint_32)png_ptr->pixel_depth + 7) >> 3);
png_debug1(3,"bit_depth = %d\n", png_ptr->bit_depth);
png_debug1(3,"channels = %d\n", png_ptr->channels);
png_debug1(3,"rowbytes = %d\n", png_ptr->rowbytes);
png_debug1(3,"rowbytes = %lu\n", png_ptr->rowbytes);
png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth,
color_type, interlace_type, compression_type, filter_type);
}
@@ -585,7 +616,7 @@ png_handle_gAMA(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{
png_warning(png_ptr,
"Ignoring incorrect gAMA value when sRGB is also present");
#ifndef PNG_NO_STDIO
#ifndef PNG_NO_CONSOLE_IO
fprintf(stderr, "gamma = (%d/100000)\n", (int)igamma);
#endif
return;
@@ -795,7 +826,7 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_warning(png_ptr,
"Ignoring incorrect cHRM value when sRGB is also present");
#ifndef PNG_NO_STDIO
#ifndef PNG_NO_CONSOLE_IO
#ifdef PNG_FLOATING_POINT_SUPPORTED
fprintf(stderr,"wx=%f, wy=%f, rx=%f, ry=%f\n",
white_x, white_y, red_x, red_y);
@@ -807,7 +838,7 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
fprintf(stderr,"gx=%ld, gy=%ld, bx=%ld, by=%ld\n",
int_x_green, int_y_green, int_x_blue, int_y_blue);
#endif
#endif /* PNG_NO_STDIO */
#endif /* PNG_NO_CONSOLE_IO */
}
png_crc_finish(png_ptr, 0);
return;
@@ -901,7 +932,7 @@ png_handle_sRGB(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{
png_warning(png_ptr,
"Ignoring incorrect gAMA value when sRGB is also present");
#ifndef PNG_NO_STDIO
#ifndef PNG_NO_CONSOLE_IO
# ifdef PNG_FIXED_POINT_SUPPORTED
fprintf(stderr,"incorrect gamma=(%d/100000)\n",(int)png_ptr->int_gamma);
# else
@@ -1233,9 +1264,11 @@ png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
#ifdef PNG_FREE_ME_SUPPORTED
png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0);
png_ptr->free_me |= PNG_FREE_TRNS;
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
png_ptr->free_me |= PNG_FREE_TRNS;
#else
png_ptr->flags |= PNG_FLAG_FREE_TRNS;
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
png_ptr->flags |= PNG_FLAG_FREE_TRNS;
#endif
png_set_tRNS(png_ptr, info_ptr, png_ptr->trans, png_ptr->num_trans,
&(png_ptr->trans_values));
@@ -1479,7 +1512,7 @@ png_handle_oFFs(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
#endif
#if defined(PNG_READ_pCAL_SUPPORTED)
/* read the pCAL chunk (png-scivis-19970203) */
/* read the pCAL chunk (described in the PNG Extensions document) */
void /* PRIVATE */
png_handle_pCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{
@@ -1508,7 +1541,7 @@ png_handle_pCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
return;
}
png_debug1(2, "Allocating and reading pCAL chunk data (%d bytes)\n",
png_debug1(2, "Allocating and reading pCAL chunk data (%lu bytes)\n",
length + 1);
purpose = (png_charp)png_malloc(png_ptr, length + 1);
slength = (png_size_t)length;
@@ -1628,7 +1661,7 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
return;
}
png_debug1(2, "Allocating and reading sCAL chunk data (%d bytes)\n",
png_debug1(2, "Allocating and reading sCAL chunk data (%lu bytes)\n",
length + 1);
buffer = (png_charp)png_malloc(png_ptr, length + 1);
slength = (png_size_t)length;
@@ -2543,7 +2576,7 @@ png_read_filter_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);
png_debug2(2,"row = %lu, filter = %d\n", png_ptr->row_number, filter);
switch (filter)
{
case PNG_FILTER_VALUE_NONE:
@@ -2957,12 +2990,12 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
png_memset_check(png_ptr, png_ptr->prev_row, 0, png_ptr->rowbytes + 1);
png_debug1(3, "width = %d,\n", png_ptr->width);
png_debug1(3, "height = %d,\n", png_ptr->height);
png_debug1(3, "iwidth = %d,\n", png_ptr->iwidth);
png_debug1(3, "num_rows = %d\n", png_ptr->num_rows);
png_debug1(3, "rowbytes = %d,\n", png_ptr->rowbytes);
png_debug1(3, "irowbytes = %d,\n", png_ptr->irowbytes);
png_debug1(3, "width = %lu,\n", png_ptr->width);
png_debug1(3, "height = %lu,\n", png_ptr->height);
png_debug1(3, "iwidth = %lu,\n", png_ptr->iwidth);
png_debug1(3, "num_rows = %lu\n", png_ptr->num_rows);
png_debug1(3, "rowbytes = %lu,\n", png_ptr->rowbytes);
png_debug1(3, "irowbytes = %lu,\n", png_ptr->irowbytes);
png_ptr->flags |= PNG_FLAG_ROW_INIT;
}

15
pngset.c
View File

@@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -212,7 +212,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
return;
length = png_strlen(purpose) + 1;
png_debug1(3, "allocating purpose for info (%d bytes)\n", length);
png_debug1(3, "allocating purpose for info (%lu bytes)\n", length);
info_ptr->pcal_purpose = (png_charp)png_malloc(png_ptr, length);
png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length);
@@ -223,7 +223,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
info_ptr->pcal_nparams = (png_byte)nparams;
length = png_strlen(units) + 1;
png_debug1(3, "allocating units for info (%d bytes)\n", length);
png_debug1(3, "allocating units for info (%lu bytes)\n", length);
info_ptr->pcal_units = (png_charp)png_malloc(png_ptr, length);
png_memcpy(info_ptr->pcal_units, units, (png_size_t)length);
@@ -234,7 +234,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
for (i = 0; i < nparams; i++)
{
length = png_strlen(params[i]) + 1;
png_debug2(3, "allocating parameter %d for info (%d bytes)\n", i, length);
png_debug2(3, "allocating parameter %d for info (%lu bytes)\n", i, length);
info_ptr->pcal_params[i] = (png_charp)png_malloc(png_ptr, length);
png_memcpy(info_ptr->pcal_params[i], params[i], (png_size_t)length);
}
@@ -556,7 +556,7 @@ png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
textp->key = (png_charp)png_malloc(png_ptr,
(png_uint_32)(key_len + text_length + lang_len + lang_key_len + 4));
png_debug2(2, "Allocated %d bytes at %x in png_set_text\n",
key_len + lang_len + lang_key_len + text_length + 4, textp->key);
key_len + lang_len + lang_key_len + text_length + 4, (int)textp->key);
png_memcpy(textp->key, text_ptr[i].key,
(png_size_t)(key_len));
@@ -659,6 +659,7 @@ png_set_sPLT(png_structp png_ptr,
png_memcpy(np, info_ptr->splt_palettes,
info_ptr->splt_palettes_num * sizeof(png_sPLT_t));
png_free(png_ptr, info_ptr->splt_palettes);
info_ptr->splt_palettes=NULL;
for (i = 0; i < nentries; i++)
{
@@ -703,6 +704,7 @@ png_set_unknown_chunks(png_structp png_ptr,
png_memcpy(np, info_ptr->unknown_chunks,
info_ptr->unknown_chunks_num * sizeof(png_unknown_chunk));
png_free(png_ptr, info_ptr->unknown_chunks);
info_ptr->unknown_chunks=NULL;
for (i = 0; i < num_unknowns; i++)
{
@@ -739,7 +741,7 @@ png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr,
void PNGAPI
png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted)
{
png_debug1(1, "in png_permit_empty_plte\n", "");
png_debug(1, "in png_permit_empty_plte\n");
if (png_ptr == NULL)
return;
png_ptr->empty_plte_permitted=(png_byte)empty_plte_permitted;
@@ -774,6 +776,7 @@ png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep
{
png_memcpy(new_list, png_ptr->chunk_list, 5*old_num_chunks);
png_free(png_ptr, png_ptr->chunk_list);
png_ptr->chunk_list=NULL;
}
png_memcpy(new_list+5*old_num_chunks, chunk_list, 5*num_chunks);
for (p=new_list+5*old_num_chunks+4, i=0; i<num_chunks; i++, p+=5)

2
pngtrans.c
View File

@@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

8
pngvcrd.c
View File

@@ -2,7 +2,7 @@
*
* For Intel x86 CPU and Microsoft Visual C++ compiler
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation
@@ -3671,11 +3671,11 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
#ifdef PNG_DEBUG
png_debug(1, "in png_read_filter_row\n");
#if (UseMMX == 1)
# if (UseMMX == 1)
png_debug1(0,"%s, ", "MMX");
#else
# else
png_debug1(0,"%s, ", "x86");
#endif
# endif
switch (filter)
{
case 0: sprintf(filnm, "None ");

33
pngwio.c
View File

@@ -1,7 +1,7 @@
/* pngwio.c - functions for data output
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -44,11 +44,14 @@ png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_uint_32 check;
check = fwrite(data, 1, length, (FILE *)(png_ptr->io_ptr));
#if defined(_WIN32_WCE)
if ( !WriteFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) )
check = 0;
#else
check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr));
#endif
if (check != length)
{
png_error(png_ptr, "Write Error");
}
}
#else
/* this is the model-independent version. Since the standard I/O library
@@ -64,14 +67,19 @@ png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_uint_32 check;
png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */
FILE *io_ptr;
png_FILE_p io_ptr;
/* Check if data really is near. If so, use usual code. */
near_data = (png_byte *)CVT_PTR_NOCHECK(data);
io_ptr = (FILE *)CVT_PTR(png_ptr->io_ptr);
io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
if ((png_bytep)near_data == data)
{
#if defined(_WIN32_WCE)
if ( !WriteFile(io_ptr, near_data, length, &check, NULL) )
check = 0;
#else
check = fwrite(near_data, 1, length, io_ptr);
#endif
}
else
{
@@ -83,7 +91,12 @@ png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
written = MIN(NEAR_BUF_SIZE, remaining);
png_memcpy(buf, data, written); /* copy far buffer to near buffer */
#if defined(_WIN32_WCE)
if ( !WriteFile(io_ptr, buf, written, &err, NULL) )
err = 0;
#else
err = fwrite(buf, 1, written, io_ptr);
#endif
if (err != written)
break;
else
@@ -94,9 +107,7 @@ png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
while (remaining != 0);
}
if (check != length)
{
png_error(png_ptr, "Write Error");
}
}
#endif
@@ -117,10 +128,12 @@ png_flush(png_structp png_ptr)
static void /* PRIVATE */
png_default_flush(png_structp png_ptr)
{
FILE *io_ptr;
io_ptr = (FILE *)CVT_PTR((png_ptr->io_ptr));
#if !defined(_WIN32_WCE)
png_FILE_p io_ptr;
io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr));
if (io_ptr != NULL)
fflush(io_ptr);
#endif
}
#endif
#endif

12
pngwrite.c
View File

@@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -375,9 +375,12 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)
/* write end of PNG file */
png_write_IEND(png_ptr);
png_flush(png_ptr);
}
#if defined(PNG_WRITE_tIME_SUPPORTED)
#if !defined(_WIN32_WCE)
/* "time.h" functions are not supported on WindowsCE */
void PNGAPI
png_convert_from_struct_tm(png_timep ptime, struct tm FAR * ttime)
{
@@ -400,6 +403,7 @@ png_convert_from_time_t(png_timep ptime, time_t ttime)
png_convert_from_struct_tm(ptime, tbuf);
}
#endif
#endif
/* Initialize png_ptr structure, and allocate any memory needed */
png_structp PNGAPI
@@ -444,6 +448,7 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#endif
{
png_free(png_ptr, png_ptr->zbuf);
png_ptr->zbuf=NULL;
png_destroy_struct(png_ptr);
return ((png_structp)NULL);
}
@@ -734,11 +739,11 @@ png_write_row(png_structp png_ptr, png_bytep row)
(png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3);
png_debug1(3, "row_info->color_type = %d\n", png_ptr->row_info.color_type);
png_debug1(3, "row_info->width = %d\n", png_ptr->row_info.width);
png_debug1(3, "row_info->width = %lu\n", png_ptr->row_info.width);
png_debug1(3, "row_info->channels = %d\n", png_ptr->row_info.channels);
png_debug1(3, "row_info->bit_depth = %d\n", png_ptr->row_info.bit_depth);
png_debug1(3, "row_info->pixel_depth = %d\n", png_ptr->row_info.pixel_depth);
png_debug1(3, "row_info->rowbytes = %d\n", png_ptr->row_info.rowbytes);
png_debug1(3, "row_info->rowbytes = %lu\n", png_ptr->row_info.rowbytes);
/* Copy user's row into buffer, leaving room for filter byte. */
png_memcpy_check(png_ptr, png_ptr->row_buf + 1, row,
@@ -863,6 +868,7 @@ png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)
if (png_ptr->num_chunk_list)
{
png_free(png_ptr, png_ptr->chunk_list);
png_ptr->chunk_list=NULL;
png_ptr->num_chunk_list=0;
}
#endif

2
pngwtran.c
View File

@@ -1,7 +1,7 @@
/* pngwtran.c - transforms the data in a row for PNG writers
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

33
pngwutil.c
View File

@@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file
*
* libpng 1.0.7rc2 - June 28, 2000
* libpng 1.0.8rc1 - July 17, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -77,7 +77,7 @@ png_write_chunk_start(png_structp png_ptr, png_bytep chunk_name,
png_uint_32 length)
{
png_byte buf[4];
png_debug2(0, "Writing %s chunk (%d bytes)\n", chunk_name, length);
png_debug2(0, "Writing %s chunk (%lu bytes)\n", chunk_name, length);
/* write the length */
png_save_uint_32(buf, length);
@@ -172,7 +172,7 @@ png_text_compress(png_structp png_ptr,
if (compression >= PNG_TEXT_COMPRESSION_LAST)
{
#if !defined(PNG_NO_STDIO)
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
char msg[50];
sprintf(msg, "Unknown compression type %d", compression);
png_warning(png_ptr, msg);
@@ -339,9 +339,11 @@ png_write_compressed_data_out(png_structp png_ptr, compression_state *comp)
png_write_chunk_data(png_ptr,(png_bytep)comp->output_ptr[i],
png_ptr->zbuf_size);
png_free(png_ptr, comp->output_ptr[i]);
comp->output_ptr[i]=NULL;
}
if (comp->max_output_ptr != 0)
png_free(png_ptr, comp->output_ptr);
comp->output_ptr=NULL;
/* write anything left in zbuf */
if (png_ptr->zstream.avail_out < (png_uint_32)png_ptr->zbuf_size)
png_write_chunk_data(png_ptr, png_ptr->zbuf,
@@ -837,8 +839,8 @@ png_write_cHRM(png_structp png_ptr, double white_x, double white_y,
white_x + white_y > 1.0)
{
png_warning(png_ptr, "Invalid cHRM white point specified");
#if !defined(PNG_NO_STDIO)
printf("white_x=%f, white_y=%f\n",white_x, white_y);
#if !defined(PNG_NO_CONSOLE_IO)
fprintf(stderr,"white_x=%f, white_y=%f\n",white_x, white_y);
#endif
return;
}
@@ -900,8 +902,8 @@ png_write_cHRM_fixed(png_structp png_ptr, png_fixed_point white_x,
if (white_x > 80000L || white_y > 80000L || white_x + white_y > 100000L)
{
png_warning(png_ptr, "Invalid fixed cHRM white point specified");
#if !defined(PNG_NO_STDIO)
printf("white_x=%ld, white_y=%ld\n",white_x, white_y);
#if !defined(PNG_NO_CONSOLE_IO)
fprintf(stderr,"white_x=%ld, white_y=%ld\n",white_x, white_y);
#endif
return;
}
@@ -1088,7 +1090,7 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
{
if (*kp < 0x20 || (*kp > 0x7E && (png_byte)*kp < 0xA1))
{
#if !defined(PNG_NO_STDIO)
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
char msg[40];
sprintf(msg, "invalid keyword character 0x%02X", *kp);
@@ -1368,7 +1370,7 @@ png_write_oFFs(png_structp png_ptr, png_uint_32 x_offset,
#endif
#if defined(PNG_WRITE_pCAL_SUPPORTED)
/* write the pCAL chunk (png-scivis-19970203) */
/* write the pCAL chunk (described in the PNG extensions document) */
void /* PRIVATE */
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)
@@ -1400,7 +1402,7 @@ png_write_pCAL(png_structp png_ptr, png_charp purpose, png_int_32 X0,
for (i = 0; i < nparams; i++)
{
params_len[i] = png_strlen(params[i]) + (i == nparams - 1 ? 0 : 1);
png_debug2(3, "pCAL parameter %d length = %d\n", i, params_len[i]);
png_debug2(3, "pCAL parameter %d length = %lu\n", i, params_len[i]);
total_len += (png_size_t)params_len[i];
}
@@ -1441,8 +1443,19 @@ png_write_sCAL(png_structp png_ptr, int unit, double width,double height)
png_debug(1, "in png_write_sCAL\n");
#if defined(_WIN32_WCE)
/* sprintf() function is not supported on WindowsCE */
{
wchar_t wc_buf[32];
swprintf(wc_buf, TEXT("%12.12e"), width);
WideCharToMultiByte(CP_ACP, 0, wc_buf, -1, wbuf, 32, NULL, NULL);
swprintf(wc_buf, TEXT("%12.12e"), height);
WideCharToMultiByte(CP_ACP, 0, wc_buf, -1, hbuf, 32, NULL, NULL);
}
#else
sprintf(wbuf, "%12.12e", width);
sprintf(hbuf, "%12.12e", height);
#endif
total_len = 1 + png_strlen(wbuf)+1 + png_strlen(hbuf);
png_debug1(3, "sCAL total length = %d\n", total_len);

11
zutil.c
View File

@@ -202,6 +202,7 @@ void zcfree (voidpf opaque, voidpf ptr)
#ifndef STDC
extern voidp calloc OF((uInt items, uInt size));
extern voidp malloc OF((uInt items));
extern void free OF((voidpf ptr));
#endif
@@ -214,6 +215,16 @@ voidpf zcalloc (opaque, items, size)
return (voidpf)calloc(items, size);
}
/* added to version 1.1.3pc -- glennrp */
voidpf zmalloc (opaque, items, size)
voidpf opaque;
unsigned items;
unsigned size;
{
if (opaque) items += size - size; /* make compiler happy */
return (voidpf)malloc(items * size);
}
void zcfree (opaque, ptr)
voidpf opaque;
voidpf ptr;