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Updated changelog and some dates. 

Updated to latest PNG code.


git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@2942 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
This commit is contained in:
stephena 2014-06-30 14:38:18 +00:00
parent 6ea7f60c90
commit 534f7680e6
35 changed files with 269 additions and 229 deletions
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10
Changes.txt
View File

@ -19,7 +19,8 @@
Windows (Direct3D) and Linux/OSX (OpenGL). It is also now possible
to port Stella to iOS and Android devices using OpenGLES.
Hardware acceleration is now required, which means up-to-date drivers
are needed. Software rendering is no longer supported.
are needed. Software rendering is still present, but is somewhat
unoptimized and unsupported going forward.
* Fullscreen video modes now use the desktop resolution. Switching
to fullscreen and back to windowed mode no longer rearranges icons
@ -28,11 +29,14 @@
* TIA TV effects are now available in all video modes, since hardware
acceleration is a requirement.
* Added a much more detailed view of cart RAM to a new debugger tab.
Special thanks to SpiceWare for this implementation.
* Added a much more detailed view of cart extended RAM to a new
debugger tab. Special thanks to SpiceWare for this implementation.
* Added preliminary support for 'DASH' bankswitching scheme by A. Davie.
* The AtariVox and SaveKey controllers now have the ability in the
debugger to completely erase the virtual EEPROM data.
* Added 'savesnap' debugger prompt command, and also associated
context menu item to the debugger TIA output area. This saves the
current TIA image to a PNG file.

2
src/debugger/gui/Cart4KSCWidget.cxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/debugger/gui/Cart4KSCWidget.hxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/debugger/gui/CartBFSCWidget.cxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/debugger/gui/CartBFSCWidget.hxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/debugger/gui/CartBFWidget.cxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/debugger/gui/CartBFWidget.hxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/debugger/gui/CartDFSCWidget.cxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/debugger/gui/CartDFSCWidget.hxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/debugger/gui/CartDFWidget.cxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/debugger/gui/CartDFWidget.hxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/Cart4KSC.cxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/Cart4KSC.hxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/CartBF.cxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/CartBF.hxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/CartBFSC.cxx
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@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/CartBFSC.hxx
View File

@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/CartDF.cxx
View File

@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/CartDF.hxx
View File

@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/CartDFSC.cxx
View File

@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

2
src/emucore/CartDFSC.hxx
View File

@ -8,7 +8,7 @@
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of

114
src/libpng/png.c
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@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* Last changed in libpng 1.6.9 [February 6, 2014]
* Last changed in libpng 1.6.12 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
@ -14,7 +14,7 @@
#include "pngpriv.h"
/* Generate a compiler error if there is an old png.h in the search path. */
typedef png_libpng_version_1_6_10 Your_png_h_is_not_version_1_6_10;
typedef png_libpng_version_1_6_12 Your_png_h_is_not_version_1_6_12;
/* Tells libpng that we have already handled the first "num_bytes" bytes
* of the PNG file signature. If the PNG data is embedded into another
@ -165,7 +165,7 @@ png_calculate_crc(png_structrp png_ptr, png_const_bytep ptr, png_size_t length)
int
png_user_version_check(png_structrp png_ptr, png_const_charp user_png_ver)
{
if (user_png_ver)
if (user_png_ver != NULL)
{
int i = 0;
@ -773,13 +773,13 @@ png_get_copyright(png_const_structrp png_ptr)
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
"libpng version 1.6.10 - March 6, 2014" PNG_STRING_NEWLINE \
"libpng version 1.6.12 - June 12, 2014" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE;
# else
return "libpng version 1.6.10 - March 6, 2014\
return "libpng version 1.6.12 - June 12, 2014\
Copyright (c) 1998-2014 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@ -1558,10 +1558,10 @@ png_colorspace_check_xy(png_XYZ *XYZ, const png_xy *xy)
/* As a side-effect this routine also returns the XYZ endpoints. */
result = png_XYZ_from_xy(XYZ, xy);
if (result) return result;
if (result != 0) return result;
result = png_xy_from_XYZ(&xy_test, XYZ);
if (result) return result;
if (result != 0) return result;
if (png_colorspace_endpoints_match(xy, &xy_test,
5/*actually, the math is pretty accurate*/))
@ -1581,10 +1581,10 @@ png_colorspace_check_XYZ(png_xy *xy, png_XYZ *XYZ)
png_XYZ XYZtemp;
result = png_XYZ_normalize(XYZ);
if (result) return result;
if (result != 0) return result;
result = png_xy_from_XYZ(xy, XYZ);
if (result) return result;
if (result != 0) return result;
XYZtemp = *XYZ;
return png_colorspace_check_xy(&XYZtemp, xy);
@ -1625,7 +1625,7 @@ png_colorspace_set_xy_and_XYZ(png_const_structrp png_ptr,
}
/* Only overwrite with preferred values */
if (!preferred)
if (preferred == 0)
return 1; /* ok, but no change */
}
@ -1906,10 +1906,6 @@ png_icc_check_length(png_const_structrp png_ptr, png_colorspacerp colorspace,
return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
"too short");
if (profile_length & 3)
return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
"invalid length");
return 1;
}
@ -1930,6 +1926,11 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"length does not match profile");
temp = (png_uint_32) (*(profile+8));
if (temp > 3 && (profile_length & 3))
return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
"invalid length");
temp = png_get_uint_32(profile+128); /* tag count: 12 bytes/tag */
if (temp > 357913930 || /* (2^32-4-132)/12: maximum possible tag count */
profile_length < 132+12*temp) /* truncated tag table */
@ -2044,7 +2045,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
"invalid embedded Abstract ICC profile");
case 0x6C696E6B: /* 'link' */
/* DeviceLink profiles cannnot be interpreted in a non-device specific
/* DeviceLink profiles cannot be interpreted in a non-device specific
* fashion, if an app uses the AToB0Tag in the profile the results are
* undefined unless the result is sent to the intended device,
* therefore a DeviceLink profile should not be found embedded in a
@ -2055,7 +2056,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
case 0x6E6D636C: /* 'nmcl' */
/* A NamedColor profile is also device specific, however it doesn't
* contain an AToB0 tag that is open to misintrepretation. Almost
* contain an AToB0 tag that is open to misinterpretation. Almost
* certainly it will fail the tests below.
*/
(void)png_icc_profile_error(png_ptr, NULL, name, temp,
@ -2136,7 +2137,7 @@ png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace,
return 1; /* success, maybe with warnings */
}
#ifdef PNG_sRGB_SUPPORTED
#if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0
/* Information about the known ICC sRGB profiles */
static const struct
{
@ -2210,6 +2211,7 @@ png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr,
* by sRGB (but maybe defined by a later ICC specification) the read of
* the profile will fail at that point.
*/
png_uint_32 length = 0;
png_uint_32 intent = 0x10000; /* invalid */
#if PNG_sRGB_PROFILE_CHECKS > 1
@ -2217,6 +2219,11 @@ png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr,
#endif
unsigned int i;
/* First see if PNG_SKIP_sRGB_CHECK_PROFILE has been set to "on" */
if (((png_ptr->options >> PNG_SKIP_sRGB_CHECK_PROFILE) & 3) ==
PNG_OPTION_ON)
return 0;
for (i=0; i < (sizeof png_sRGB_checks) / (sizeof png_sRGB_checks[0]); ++i)
{
if (png_get_uint_32(profile+84) == png_sRGB_checks[i].md5[0] &&
@ -2294,7 +2301,6 @@ png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr,
return 1+png_sRGB_checks[i].is_broken;
}
}
}
# if PNG_sRGB_PROFILE_CHECKS > 0
/* The signature matched, but the profile had been changed in some
@ -2306,6 +2312,7 @@ png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr,
PNG_CHUNK_WARNING);
break;
# endif
}
}
}
@ -2321,7 +2328,9 @@ png_icc_set_sRGB(png_const_structrp png_ptr,
/* Is this profile one of the known ICC sRGB profiles? If it is, just set
* the sRGB information.
*/
#if PNG_sRGB_PROFILE_CHECKS >= 0
if (png_compare_ICC_profile_with_sRGB(png_ptr, profile, adler))
#endif
(void)png_colorspace_set_sRGB(png_ptr, colorspace,
(int)/*already checked*/png_get_uint_32(profile+64));
}
@ -2435,45 +2444,46 @@ png_check_IHDR(png_const_structrp png_ptr,
png_warning(png_ptr, "Image width is zero in IHDR");
error = 1;
}
else if (width > PNG_UINT_31_MAX)
{
png_warning(png_ptr, "Invalid image width in IHDR");
error = 1;
}
else
{
# ifdef PNG_SET_USER_LIMITS_SUPPORTED
if (width > png_ptr->user_width_max)
# else
if (width > PNG_USER_WIDTH_MAX)
# endif
{
png_warning(png_ptr, "Image width exceeds user limit in IHDR");
error = 1;
}
}
if (height == 0)
{
png_warning(png_ptr, "Image height is zero in IHDR");
error = 1;
}
# ifdef PNG_SET_USER_LIMITS_SUPPORTED
if (width > png_ptr->user_width_max)
# else
if (width > PNG_USER_WIDTH_MAX)
# endif
{
png_warning(png_ptr, "Image width exceeds user limit in IHDR");
error = 1;
}
# ifdef PNG_SET_USER_LIMITS_SUPPORTED
if (height > png_ptr->user_height_max)
# else
if (height > PNG_USER_HEIGHT_MAX)
# endif
{
png_warning(png_ptr, "Image height exceeds user limit in IHDR");
error = 1;
}
if (width > PNG_UINT_31_MAX)
{
png_warning(png_ptr, "Invalid image width in IHDR");
error = 1;
}
if (height > PNG_UINT_31_MAX)
else if (height > PNG_UINT_31_MAX)
{
png_warning(png_ptr, "Invalid image height in IHDR");
error = 1;
}
else
{
# ifdef PNG_SET_USER_LIMITS_SUPPORTED
if (height > png_ptr->user_height_max)
# else
if (height > PNG_USER_HEIGHT_MAX)
# endif
{
png_warning(png_ptr, "Image height exceeds user limit in IHDR");
error = 1;
}
}
/* Check other values */
if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 &&
@ -2738,7 +2748,7 @@ png_pow10(int power)
}
while (power > 0);
if (recip) d = 1/d;
if (recip != 0) d = 1/d;
}
/* else power is 0 and d is 1 */
@ -3261,7 +3271,7 @@ png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times,
if (s00 >= (D >> 1))
++result;
if (negative)
if (negative != 0)
result = -result;
/* Check for overflow. */
@ -3788,7 +3798,7 @@ png_build_16bit_table(png_structrp png_ptr, png_uint_16pp *ptable,
double d = floor(65535*pow(ig/(double)max, gamma_val*.00001)+.5);
sub_table[j] = (png_uint_16)d;
# else
if (shift)
if (shift != 0)
ig = (ig * 65535U + max_by_2)/max;
sub_table[j] = png_gamma_16bit_correct(ig, gamma_val);
@ -3804,7 +3814,7 @@ png_build_16bit_table(png_structrp png_ptr, png_uint_16pp *ptable,
{
png_uint_32 ig = (j << (8-shift)) + i;
if (shift)
if (shift != 0)
ig = (ig * 65535U + max_by_2)/max;
sub_table[j] = (png_uint_16)ig;
@ -4092,7 +4102,7 @@ png_build_gamma_table(png_structrp png_ptr, int bit_depth)
}
#endif /* READ_GAMMA */
/* HARDWARE OPTION SUPPORT */
/* HARDWARE OR SOFTWARE OPTION SUPPORT */
#ifdef PNG_SET_OPTION_SUPPORTED
int PNGAPI
png_set_option(png_structrp png_ptr, int option, int onoff)

42
src/libpng/png.h
View File

@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.6.10 - March 6, 2014
* libpng version 1.6.12 - June 12, 2014
* Copyright (c) 1998-2014 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.)
@ -11,7 +11,7 @@
* 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 1.6.10 - March 6, 2014: Glenn
* libpng versions 0.97, January 1998, through 1.6.12 - June 12, 2014: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@ -193,8 +193,13 @@
* 1.6.9rc01-02 16 10609 16.so.16.9[.0]
* 1.6.9 16 10609 16.so.16.9[.0]
* 1.6.10beta01-03 16 10610 16.so.16.10[.0]
* 1.6.10betarc01-04 16 10610 16.so.16.10[.0]
* 1.6.10beta 16 10610 16.so.16.10[.0]
* 1.6.10rc01-03 16 10610 16.so.16.10[.0]
* 1.6.10 16 10610 16.so.16.10[.0]
* 1.6.11beta01-06 16 10611 16.so.16.11[.0]
* 1.6.11rc01-02 16 10611 16.so.16.11[.0]
* 1.6.11 16 10611 16.so.16.11[.0]
* 1.6.12rc01-03 16 10612 16.so.16.12[.0]
* 1.6.12 16 10612 16.so.16.12[.0]
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@ -226,8 +231,8 @@
*
* This code is released under the libpng license.
*
* libpng versions 1.2.6, August 15, 2004, through 1.6.10, March 6, 2014, are
* Copyright (c) 2004, 2006-2013 Glenn Randers-Pehrson, and are
* libpng versions 1.2.6, August 15, 2004, through 1.6.12, June 12, 2014, are
* Copyright (c) 2004, 2006-2014 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors:
*
@ -338,13 +343,13 @@
* Y2K compliance in libpng:
* =========================
*
* March 6, 2014
* June 12, 2014
*
* 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 1.6.10 are Y2K compliant. It is my belief that
* upward through 1.6.12 are Y2K compliant. It is my belief that
* earlier versions were also Y2K compliant.
*
* Libpng only has two year fields. One is a 2-byte unsigned integer
@ -397,16 +402,18 @@
/* This is not the place to learn how to use libpng. The file libpng-manual.txt
* describes how to use libpng, and the file example.c summarizes it
* with some code on which to build. This file is useful for looking
* at the actual function definitions and structure components.
* at the actual function definitions and structure components. If that
* file has been stripped from your copy of libpng, you can find it at
* <http://www.libpng.org/pub/png/libpng-manual.txt>
*
* If you just need to read a PNG file and don't want to read the documentation
* skip to the end of this file and read the section entitled 'simplified API'.
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.6.10"
#define PNG_LIBPNG_VER_STRING "1.6.12"
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.6.10 - March 6, 2014\n"
" libpng version 1.6.12 - June 12, 2014\n"
#define PNG_LIBPNG_VER_SONUM 16
#define PNG_LIBPNG_VER_DLLNUM 16
@ -414,7 +421,7 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 6
#define PNG_LIBPNG_VER_RELEASE 10
#define PNG_LIBPNG_VER_RELEASE 12
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero:
@ -445,7 +452,7 @@
* 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 10610 /* 1.6.10 */
#define PNG_LIBPNG_VER 10612 /* 1.6.12 */
/* Library configuration: these options cannot be changed after
* the library has been built.
@ -550,7 +557,7 @@ extern "C" {
/* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number.
*/
typedef char* png_libpng_version_1_6_10;
typedef char* png_libpng_version_1_6_12;
/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info.
*
@ -1849,7 +1856,6 @@ PNG_EXPORT(219, png_size_t, png_process_data_pause, (png_structrp, int save));
*/
PNG_EXPORT(220, png_uint_32, png_process_data_skip, (png_structrp));
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Function that combines rows. 'new_row' is a flag that should come from
* the callback and be non-NULL if anything needs to be done; the library
* stores its own version of the new data internally and ignores the passed
@ -1857,7 +1863,6 @@ PNG_EXPORT(220, png_uint_32, png_process_data_skip, (png_structrp));
*/
PNG_EXPORT(93, void, png_progressive_combine_row, (png_const_structrp png_ptr,
png_bytep old_row, png_const_bytep new_row));
#endif /* PNG_READ_INTERLACING_SUPPORTED */
#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
PNG_EXPORTA(94, png_voidp, png_malloc, (png_const_structrp png_ptr,
@ -3225,7 +3230,8 @@ PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr,
# define PNG_ARM_NEON 0 /* HARDWARE: ARM Neon SIMD instructions supported */
#endif
#define PNG_MAXIMUM_INFLATE_WINDOW 2 /* SOFTWARE: force maximum window */
#define PNG_OPTION_NEXT 4 /* Next option - numbers must be even */
#define PNG_SKIP_sRGB_CHECK_PROFILE 4 /* SOFTWARE: Check ICC profile for sRGB */
#define PNG_OPTION_NEXT 6 /* Next option - numbers must be even */
/* Return values: NOTE: there are four values and 'off' is *not* zero */
#define PNG_OPTION_UNSET 0 /* Unset - defaults to off */
@ -3238,7 +3244,7 @@ PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option,
#endif
/*******************************************************************************
* END OF HARDWARE OPTIONS
* END OF HARDWARE AND SOFTWARE OPTIONS
******************************************************************************/
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project

6
src/libpng/pngconf.h
View File

@ -1,9 +1,9 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng version 1.6.10 - March 6, 2014
* libpng version 1.6.12 - June 12, 2014
*
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* Copyright (c) 1998-2014 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.)
*
@ -361,7 +361,7 @@
* version 1.2.41. Disabling these removes the warnings but may also produce
* less efficient code.
*/
# if defined(__clang__)
# if defined(__clang__) && defined(__has_attribute)
/* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */
# if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__)
# define PNG_USE_RESULT __attribute__((__warn_unused_result__))

11
src/libpng/pngerror.c
View File

@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* Last changed in libpng 1.6.10 [March 6, 2014]
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
@ -195,7 +195,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
* drop the decimal point. If the number is a true zero handle that
* here.
*/
if (output)
if (output != 0)
*--end = '.';
else if (number == 0) /* and !output */
*--end = '0';
@ -759,6 +759,9 @@ png_longjmp,(png_const_structrp png_ptr, int val),PNG_NORETURN)
#ifdef PNG_SETJMP_SUPPORTED
if (png_ptr && png_ptr->longjmp_fn && png_ptr->jmp_buf_ptr)
png_ptr->longjmp_fn(*png_ptr->jmp_buf_ptr, val);
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(val)
#endif
/* If control reaches this point, png_longjmp() must not return. The only
@ -939,7 +942,7 @@ png_safe_execute(png_imagep image_in, int (*function)(png_voidp), png_voidp arg)
saved_error_buf = image->opaque->error_buf;
result = setjmp(safe_jmpbuf) == 0;
if (result)
if (result != 0)
{
image->opaque->error_buf = safe_jmpbuf;
@ -949,7 +952,7 @@ png_safe_execute(png_imagep image_in, int (*function)(png_voidp), png_voidp arg)
image->opaque->error_buf = saved_error_buf;
/* And do the cleanup prior to any failure return. */
if (!result)
if (result == 0)
png_image_free(image);
return result;

25
src/libpng/pngget.c
View File

@ -1,8 +1,8 @@
/* pngget.c - retrieval of values from info struct
*
* Last changed in libpng 1.6.1 [March 28, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
*
@ -124,6 +124,9 @@ png_get_x_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
return (info_ptr->x_pixels_per_unit);
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
@ -142,6 +145,9 @@ png_get_y_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
return (info_ptr->y_pixels_per_unit);
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
@ -159,6 +165,9 @@ png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr)
info_ptr->x_pixels_per_unit == info_ptr->y_pixels_per_unit)
return (info_ptr->x_pixels_per_unit);
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
@ -229,6 +238,9 @@ png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
return (info_ptr->x_offset);
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
@ -245,6 +257,9 @@ png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
return (info_ptr->y_offset);
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
@ -261,6 +276,9 @@ png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
return (info_ptr->x_offset);
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
@ -277,6 +295,9 @@ png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
return (info_ptr->y_offset);
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);

18
src/libpng/pngpread.c
View File

@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* Last changed in libpng 1.6.10 [March 6, 2014]
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
@ -49,7 +49,7 @@ png_process_data_pause(png_structrp png_ptr, int save)
/* It's easiest for the caller if we do the save, then the caller doesn't
* have to supply the same data again:
*/
if (save)
if (save != 0)
png_push_save_buffer(png_ptr);
else
{
@ -979,15 +979,15 @@ png_push_process_row(png_structrp png_ptr)
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Blow up interlaced rows to full size */
/* Expand interlaced rows to full size */
if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE))
{
if (png_ptr->pass < 6)
png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass,
png_ptr->transformations);
switch (png_ptr->pass)
{
switch (png_ptr->pass)
{
case 0:
{
int i;
@ -1154,7 +1154,6 @@ png_push_process_row(png_structrp png_ptr)
}
}
else
#endif
{
png_push_have_row(png_ptr, png_ptr->row_buf + 1);
png_read_push_finish_row(png_ptr);
@ -1164,7 +1163,6 @@ png_push_process_row(png_structrp png_ptr)
void /* PRIVATE */
png_read_push_finish_row(png_structrp png_ptr)
{
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Start of interlace block */
@ -1189,7 +1187,6 @@ png_read_push_finish_row(png_structrp png_ptr)
if (png_ptr->row_number < png_ptr->num_rows)
return;
#ifdef PNG_READ_INTERLACING_SUPPORTED
if (png_ptr->interlaced)
{
png_ptr->row_number = 0;
@ -1224,7 +1221,6 @@ png_read_push_finish_row(png_structrp png_ptr)
} while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0);
}
#endif /* PNG_READ_INTERLACING_SUPPORTED */
}
void /* PRIVATE */
@ -1249,7 +1245,6 @@ png_push_have_row(png_structrp png_ptr, png_bytep row)
(int)png_ptr->pass);
}
#ifdef PNG_READ_INTERLACING_SUPPORTED
void PNGAPI
png_progressive_combine_row(png_const_structrp png_ptr, png_bytep old_row,
png_const_bytep new_row)
@ -1262,9 +1257,8 @@ png_progressive_combine_row(png_const_structrp png_ptr, png_bytep old_row,
* it must be png_ptr->row_buf+1
*/
if (new_row != NULL)
png_combine_row(png_ptr, old_row, 1/*display*/);
png_combine_row(png_ptr, old_row, 1/*blocky display*/);
}
#endif /* PNG_READ_INTERLACING_SUPPORTED */
void PNGAPI
png_set_progressive_read_fn(png_structrp png_ptr, png_voidp progressive_ptr,

4
src/libpng/pngpriv.h
View File

@ -6,7 +6,7 @@
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* Last changed in libpng 1.6.10 [March 6, 2014]
* Last changed in libpng 1.6.10 [March 6, 1014]]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@ -822,7 +822,7 @@
* zlib version number and because this affects handling of certain broken
* PNG files the -I directives must match.
*
* The most likely explanation is that you passed a -I in CFLAGS, this will
* The most likely explanation is that you passed a -I in CFLAGS. This will
* not work; all the preprocessor directories and in particular all the -I
* directives must be in CPPFLAGS.
*/

40
src/libpng/pngread.c
View File

@ -1,7 +1,7 @@
/* pngread.c - read a PNG file
*
* Last changed in libpng 1.6.10 [March 6, 2014]
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
@ -572,7 +572,7 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
png_error(png_ptr, "internal sequential row size calculation error");
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Blow up interlaced rows to full size */
/* Expand interlaced rows to full size */
if (png_ptr->interlaced &&
(png_ptr->transformations & PNG_INTERLACE))
{
@ -1788,7 +1788,7 @@ png_create_colormap_entry(png_image_read_control *display,
/* This is set if the color isn't gray but the output is. */
if (encoding == P_LINEAR)
{
if (convert_to_Y)
if (convert_to_Y != 0)
{
/* NOTE: these values are copied from png_do_rgb_to_gray */
png_uint_32 y = (png_uint_32)6968 * red + (png_uint_32)23434 * green +
@ -3317,11 +3317,11 @@ png_image_read_composite(png_voidp argument)
* PNG_COMPOSITE
* PNG_GAMMA
*
* This is a work-round for the fact that both the PNG_RGB_TO_GRAY and
* This is a work-around for the fact that both the PNG_RGB_TO_GRAY and
* PNG_COMPOSITE code performs gamma correction, so we get double gamma
* correction. The fix-up is to prevent the PNG_COMPOSITE operation happening
* inside libpng, so this routine sees an 8 or 16-bit gray+alpha row and handles
* the removal or pre-multiplication of the alpha channel.
* correction. The fix-up is to prevent the PNG_COMPOSITE operation from
* happening inside libpng, so this routine sees an 8 or 16-bit gray+alpha
* row and handles the removal or pre-multiplication of the alpha channel.
*/
static int
png_image_read_background(png_voidp argument)
@ -3586,7 +3586,7 @@ png_image_read_background(png_voidp argument)
component = 0;
outrow[swap_alpha] = (png_uint_16)component;
if (preserve_alpha)
if (preserve_alpha != 0)
outrow[1 ^ swap_alpha] = alpha;
inrow += 2; /* components and alpha channel */
@ -3679,7 +3679,7 @@ png_image_read_direct(png_voidp argument)
png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, input_gamma_default);
}
if (linear)
if (linear != 0)
{
/* If there *is* an alpha channel in the input it must be multiplied
* out; use PNG_ALPHA_STANDARD, otherwise just use PNG_ALPHA_PNG.
@ -3705,7 +3705,7 @@ png_image_read_direct(png_voidp argument)
*
* TODO: fix libpng and remove this.
*/
if (do_local_background)
if (do_local_background != 0)
{
png_fixed_point gtest;
@ -3753,11 +3753,11 @@ png_image_read_direct(png_voidp argument)
*
* TODO: fix libpng and remove this.
*/
if (do_local_background)
if (do_local_background != 0)
do_local_background = 2/*required*/;
/* 16-bit output: just remove the channel */
else if (linear) /* compose on black (well, pre-multiply) */
else if (linear != 0) /* compose on black (well, pre-multiply) */
png_set_strip_alpha(png_ptr);
/* 8-bit output: do an appropriate compose */
@ -3804,7 +3804,7 @@ png_image_read_direct(png_voidp argument)
png_uint_32 filler; /* opaque filler */
int where;
if (linear)
if (linear != 0)
filler = 65535;
else
@ -3877,7 +3877,7 @@ png_image_read_direct(png_voidp argument)
/* If the *output* is 16-bit then we need to check for a byte-swap on this
* architecture.
*/
if (linear)
if (linear != 0)
{
PNG_CONST png_uint_16 le = 0x0001;
@ -3886,7 +3886,7 @@ png_image_read_direct(png_voidp argument)
}
/* If change is not now 0 some transformation is missing - error out. */
if (change)
if (change != 0)
png_error(png_ptr, "png_read_image: unsupported transformation");
}
@ -3898,7 +3898,7 @@ png_image_read_direct(png_voidp argument)
*
* TODO: remove the do_local_background fixup below.
*/
if (!do_local_compose && do_local_background != 2)
if (do_local_compose == 0 && do_local_background != 2)
passes = png_set_interlace_handling(png_ptr);
png_read_update_info(png_ptr, info_ptr);
@ -3912,7 +3912,7 @@ png_image_read_direct(png_voidp argument)
if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA)
{
/* do_local_compose removes this channel below. */
if (!do_local_compose)
if (do_local_compose == 0)
{
/* do_local_background does the same if required. */
if (do_local_background != 2 ||
@ -3921,7 +3921,7 @@ png_image_read_direct(png_voidp argument)
}
}
else if (do_local_compose) /* internal error */
else if (do_local_compose != 0) /* internal error */
png_error(png_ptr, "png_image_read: alpha channel lost");
if (info_ptr->bit_depth == 16)
@ -3964,7 +3964,7 @@ png_image_read_direct(png_voidp argument)
png_voidp first_row = display->buffer;
ptrdiff_t row_bytes = display->row_stride;
if (linear)
if (linear != 0)
row_bytes *= 2;
/* The following expression is designed to work correctly whether it gives
@ -3981,7 +3981,7 @@ png_image_read_direct(png_voidp argument)
display->row_bytes = row_bytes;
}
if (do_local_compose)
if (do_local_compose != 0)
{
int result;
png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr));

78
src/libpng/pngrtran.c
View File

@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* Last changed in libpng 1.6.10 [March 6, 2014]
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
@ -143,7 +143,7 @@ png_set_background_fixed(png_structrp png_ptr,
png_ptr->background = *background_color;
png_ptr->background_gamma = background_gamma;
png_ptr->background_gamma_type = (png_byte)(background_gamma_code);
if (need_expand)
if (need_expand != 0)
png_ptr->transformations |= PNG_BACKGROUND_EXPAND;
else
png_ptr->transformations &= ~PNG_BACKGROUND_EXPAND;
@ -226,7 +226,7 @@ translate_gamma_flags(png_structrp png_ptr, png_fixed_point output_gamma,
# else
PNG_UNUSED(png_ptr)
# endif
if (is_screen)
if (is_screen != 0)
output_gamma = PNG_GAMMA_sRGB;
else
output_gamma = PNG_GAMMA_sRGB_INVERSE;
@ -235,7 +235,7 @@ translate_gamma_flags(png_structrp png_ptr, png_fixed_point output_gamma,
else if (output_gamma == PNG_GAMMA_MAC_18 ||
output_gamma == PNG_FP_1 / PNG_GAMMA_MAC_18)
{
if (is_screen)
if (is_screen != 0)
output_gamma = PNG_GAMMA_MAC_OLD;
else
output_gamma = PNG_GAMMA_MAC_INVERSE;
@ -363,7 +363,7 @@ png_set_alpha_mode_fixed(png_structrp png_ptr, int mode,
/* Finally, if pre-multiplying, set the background fields to achieve the
* desired result.
*/
if (compose)
if (compose != 0)
{
/* And obtain alpha pre-multiplication by composing on black: */
memset(&png_ptr->background, 0, (sizeof png_ptr->background));
@ -420,7 +420,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
png_ptr->transformations |= PNG_QUANTIZE;
if (!full_quantize)
if (full_quantize == 0)
{
int i;
@ -475,12 +475,12 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
}
}
if (done)
if (done != 0)
break;
}
/* Swap the palette around, and set up a table, if necessary */
if (full_quantize)
if (full_quantize != 0)
{
int j = num_palette;
@ -663,7 +663,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
num_new_palette--;
palette[png_ptr->index_to_palette[j]]
= palette[num_new_palette];
if (!full_quantize)
if (full_quantize == 0)
{
int k;
@ -731,7 +731,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
}
png_ptr->num_palette = (png_uint_16)num_palette;
if (full_quantize)
if (full_quantize != 0)
{
int i;
png_bytep distance;
@ -1131,7 +1131,7 @@ png_init_palette_transformations(png_structrp png_ptr)
}
/* If no alpha we can optimize. */
if (!input_has_alpha)
if (input_has_alpha == 0)
{
/* Any alpha means background and associative alpha processing is
* required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA
@ -1140,7 +1140,7 @@ png_init_palette_transformations(png_structrp png_ptr)
png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
if (!input_has_transparency)
if (input_has_transparency == 0)
png_ptr->transformations &= ~(PNG_COMPOSE | PNG_BACKGROUND_EXPAND);
}
@ -1196,7 +1196,7 @@ png_init_rgb_transformations(png_structrp png_ptr)
int input_has_transparency = png_ptr->num_trans > 0;
/* If no alpha we can optimize. */
if (!input_has_alpha)
if (input_has_alpha == 0)
{
/* Any alpha means background and associative alpha processing is
* required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA
@ -1207,7 +1207,7 @@ png_init_rgb_transformations(png_structrp png_ptr)
png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
# endif
if (!input_has_transparency)
if (input_has_transparency == 0)
png_ptr->transformations &= ~(PNG_COMPOSE | PNG_BACKGROUND_EXPAND);
}
@ -1336,7 +1336,7 @@ png_init_read_transformations(png_structrp png_ptr)
* the code immediately below if the transform can be handled outside the
* row loop.
*/
if (gamma_correction)
if (gamma_correction != 0)
png_ptr->transformations |= PNG_GAMMA;
else
@ -1743,11 +1743,11 @@ png_init_read_transformations(png_structrp png_ptr)
g_sig = png_gamma_significant(g);
gs_sig = png_gamma_significant(gs);
if (g_sig)
if (g_sig != 0)
png_ptr->background_1.gray = png_gamma_correct(png_ptr,
png_ptr->background.gray, g);
if (gs_sig)
if (gs_sig != 0)
png_ptr->background.gray = png_gamma_correct(png_ptr,
png_ptr->background.gray, gs);
@ -1756,7 +1756,7 @@ png_init_read_transformations(png_structrp png_ptr)
(png_ptr->background.red != png_ptr->background.gray))
{
/* RGB or RGBA with color background */
if (g_sig)
if (g_sig != 0)
{
png_ptr->background_1.red = png_gamma_correct(png_ptr,
png_ptr->background.red, g);
@ -1768,7 +1768,7 @@ png_init_read_transformations(png_structrp png_ptr)
png_ptr->background.blue, g);
}
if (gs_sig)
if (gs_sig != 0)
{
png_ptr->background.red = png_gamma_correct(png_ptr,
png_ptr->background.red, gs);
@ -2118,7 +2118,7 @@ defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
png_ptr->info_rowbytes = info_ptr->rowbytes;
#ifndef PNG_READ_EXPAND_SUPPORTED
if (png_ptr)
if (png_ptr != NULL)
return;
#endif
}
@ -2277,7 +2277,7 @@ png_do_unshift(png_row_infop row_info, png_bytep row,
have_shift = 1;
}
if (!have_shift)
if (have_shift == 0)
return;
}
@ -3038,7 +3038,7 @@ png_do_rgb_to_gray(png_structrp png_ptr, png_row_infop row_info, png_bytep row)
*(dp++) = red;
}
if (have_alpha)
if (have_alpha != 0)
*(dp++) = *(sp++);
}
}
@ -3067,7 +3067,7 @@ png_do_rgb_to_gray(png_structrp png_ptr, png_row_infop row_info, png_bytep row)
else
*(dp++) = red;
if (have_alpha)
if (have_alpha != 0)
*(dp++) = *(sp++);
}
}
@ -3119,7 +3119,7 @@ png_do_rgb_to_gray(png_structrp png_ptr, png_row_infop row_info, png_bytep row)
*(dp++) = (png_byte)((w>>8) & 0xff);
*(dp++) = (png_byte)(w & 0xff);
if (have_alpha)
if (have_alpha != 0)
{
*(dp++) = *(sp++);
*(dp++) = *(sp++);
@ -3153,7 +3153,7 @@ png_do_rgb_to_gray(png_structrp png_ptr, png_row_infop row_info, png_bytep row)
*(dp++) = (png_byte)((gray16>>8) & 0xff);
*(dp++) = (png_byte)(gray16 & 0xff);
if (have_alpha)
if (have_alpha != 0)
{
*(dp++) = *(sp++);
*(dp++) = *(sp++);
@ -3221,7 +3221,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
*sp = (png_byte)(tmp & 0xff);
}
if (!shift)
if (shift == 0)
{
shift = 7;
sp++;
@ -3260,7 +3260,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
*sp = (png_byte)(tmp & 0xff);
}
if (!shift)
if (shift == 0)
{
shift = 6;
sp++;
@ -3286,7 +3286,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
*sp = (png_byte)(tmp & 0xff);
}
if (!shift)
if (shift == 0)
{
shift = 6;
sp++;
@ -3326,7 +3326,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
*sp = (png_byte)(tmp & 0xff);
}
if (!shift)
if (shift == 0)
{
shift = 4;
sp++;
@ -3352,7 +3352,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
*sp = (png_byte)(tmp & 0xff);
}
if (!shift)
if (shift == 0)
{
shift = 4;
sp++;
@ -3605,7 +3605,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
v = gamma_to_1[*sp];
png_composite(w, v, a, png_ptr->background_1.gray);
if (!optimize)
if (optimize == 0)
w = gamma_from_1[w];
*sp = w;
}
@ -3662,7 +3662,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
g = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
png_composite_16(v, g, a, png_ptr->background_1.gray);
if (optimize)
if (optimize != 0)
w = v;
else
w = gamma_16_from_1[(v&0xff) >> gamma_shift][v >> 8];
@ -3736,17 +3736,17 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
v = gamma_to_1[*sp];
png_composite(w, v, a, png_ptr->background_1.red);
if (!optimize) w = gamma_from_1[w];
if (optimize == 0) w = gamma_from_1[w];
*sp = w;
v = gamma_to_1[*(sp + 1)];
png_composite(w, v, a, png_ptr->background_1.green);
if (!optimize) w = gamma_from_1[w];
if (optimize == 0) w = gamma_from_1[w];
*(sp + 1) = w;
v = gamma_to_1[*(sp + 2)];
png_composite(w, v, a, png_ptr->background_1.blue);
if (!optimize) w = gamma_from_1[w];
if (optimize == 0) w = gamma_from_1[w];
*(sp + 2) = w;
}
}
@ -3828,7 +3828,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
png_composite_16(w, v, a, png_ptr->background_1.red);
if (!optimize)
if (optimize == 0)
w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >>
8];
*sp = (png_byte)((w >> 8) & 0xff);
@ -3836,7 +3836,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)];
png_composite_16(w, v, a, png_ptr->background_1.green);
if (!optimize)
if (optimize == 0)
w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >>
8];
@ -3845,7 +3845,7 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)];
png_composite_16(w, v, a, png_ptr->background_1.blue);
if (!optimize)
if (optimize == 0)
w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >>
8];
@ -4763,7 +4763,7 @@ png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info)
png_do_rgb_to_gray(png_ptr, row_info,
png_ptr->row_buf + 1);
if (rgb_error)
if (rgb_error != 0)
{
png_ptr->rgb_to_gray_status=1;
if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==

28
src/libpng/pngrutil.c
View File

@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
* Last changed in libpng 1.6.10 [March 6, 2014]
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
@ -265,7 +265,7 @@ png_crc_error(png_structrp png_ptr)
/* The chunk CRC must be serialized in a single I/O call. */
png_read_data(png_ptr, crc_bytes, 4);
if (need_crc)
if (need_crc != 0)
{
crc = png_get_uint_32(crc_bytes);
return ((int)(crc != png_ptr->crc));
@ -311,7 +311,7 @@ png_read_buffer(png_structrp png_ptr, png_alloc_size_t new_size, int warn)
else if (warn < 2) /* else silent */
{
if (warn)
if (warn != 0)
png_chunk_warning(png_ptr, "insufficient memory to read chunk");
else
@ -637,7 +637,7 @@ png_decompress_chunk(png_structrp png_ptr,
{
if (new_size == *newlength)
{
if (terminate)
if (terminate != 0)
text[prefix_size + *newlength] = 0;
if (prefix_size > 0)
@ -1558,7 +1558,7 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
errmsg = "too many profiles";
/* Failure: the reason is in 'errmsg' */
if (!finished)
if (finished == 0)
png_crc_finish(png_ptr, length);
png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID;
@ -2672,7 +2672,7 @@ png_handle_iTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
buffer[uncompressed_length+prefix_length] = 0;
if (compressed)
if (compressed != 0)
text.compression = PNG_ITXT_COMPRESSION_NONE;
else
@ -3153,7 +3153,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
# define S_MASKS(d,s) { S_MASK(0,d,s), S_MASK(1,d,s), S_MASK(2,d,s),\
S_MASK(3,d,s), S_MASK(4,d,s), S_MASK(5,d,s) }
# define B_MASKS(d,s) { B_MASK(1,d,s), S_MASK(3,d,s), S_MASK(5,d,s) }
# define B_MASKS(d,s) { B_MASK(1,d,s), B_MASK(3,d,s), B_MASK(5,d,s) }
# define DEPTH_INDEX(d) ((d)==1?0:((d)==2?1:2))
@ -3192,7 +3192,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
#endif /* !PNG_USE_COMPILE_TIME_MASKS */
/* Use the appropriate mask to copy the required bits. In some cases
* the byte mask will be 0 or 0xff, optimize these cases. row_width is
* the byte mask will be 0 or 0xff; optimize these cases. row_width is
* the number of pixels, but the code copies bytes, so it is necessary
* to special case the end.
*/
@ -3264,7 +3264,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
}
/* Work out the bytes to copy. */
if (display)
if (display != 0)
{
/* When doing the 'block' algorithm the pixel in the pass gets
* replicated to adjacent pixels. This is why the even (0,2,4,6)
@ -3464,7 +3464,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
/* Here if pixel_depth < 8 to check 'end_ptr' below. */
}
else
#endif
#endif /* PNG_READ_INTERLACING_SUPPORTED */
/* If here then the switch above wasn't used so just memcpy the whole row
* from the temporary row buffer (notice that this overwrites the end of the
@ -4114,7 +4114,6 @@ png_read_finish_IDAT(png_structrp png_ptr)
void /* PRIVATE */
png_read_finish_row(png_structrp png_ptr)
{
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Start of interlace block */
@ -4128,14 +4127,12 @@ png_read_finish_row(png_structrp png_ptr)
/* Offset to next interlace block in the y direction */
static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
#endif /* PNG_READ_INTERLACING_SUPPORTED */
png_debug(1, "in png_read_finish_row");
png_ptr->row_number++;
if (png_ptr->row_number < png_ptr->num_rows)
return;
#ifdef PNG_READ_INTERLACING_SUPPORTED
if (png_ptr->interlaced)
{
png_ptr->row_number = 0;
@ -4173,7 +4170,6 @@ png_read_finish_row(png_structrp png_ptr)
if (png_ptr->pass < 7)
return;
}
#endif /* PNG_READ_INTERLACING_SUPPORTED */
/* Here after at the end of the last row of the last pass. */
png_read_finish_IDAT(png_ptr);
@ -4183,7 +4179,6 @@ png_read_finish_row(png_structrp png_ptr)
void /* PRIVATE */
png_read_start_row(png_structrp png_ptr)
{
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Start of interlace block */
@ -4197,7 +4192,6 @@ png_read_start_row(png_structrp png_ptr)
/* Offset to next interlace block in the y direction */
static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
#endif
int max_pixel_depth;
png_size_t row_bytes;
@ -4207,7 +4201,6 @@ png_read_start_row(png_structrp png_ptr)
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
png_init_read_transformations(png_ptr);
#endif
#ifdef PNG_READ_INTERLACING_SUPPORTED
if (png_ptr->interlaced)
{
if (!(png_ptr->transformations & PNG_INTERLACE))
@ -4224,7 +4217,6 @@ png_read_start_row(png_structrp png_ptr)
}
else
#endif /* PNG_READ_INTERLACING_SUPPORTED */
{
png_ptr->num_rows = png_ptr->height;
png_ptr->iwidth = png_ptr->width;

20
src/libpng/pngset.c
View File

@ -1,8 +1,8 @@
/* pngset.c - storage of image information into info struct
*
* Last changed in libpng 1.6.8 [December 19, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
*
@ -637,7 +637,7 @@ png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
png_colorspace_sync_info(png_ptr, info_ptr);
/* Don't do any of the copying if the profile was bad, or inconsistent. */
if (!result)
if (result == 0)
return;
/* But do write the gAMA and cHRM chunks from the profile. */
@ -686,7 +686,7 @@ png_set_text(png_const_structrp png_ptr, png_inforp info_ptr,
int ret;
ret = png_set_text_2(png_ptr, info_ptr, text_ptr, num_text);
if (ret)
if (ret != 0)
png_error(png_ptr, "Insufficient memory to store text");
}
@ -855,7 +855,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
textp->text = textp->key + key_len + 1;
}
if (text_length)
if (text_length != 0)
memcpy(textp->text, text_ptr[i].text, text_length);
*(textp->text + text_length) = '\0';
@ -1353,7 +1353,7 @@ png_set_keep_unknown_chunks(png_structrp png_ptr, int keep,
* required because add_one_chunk above doesn't extend the list if the 'keep'
* parameter is the default.
*/
if (keep)
if (keep != 0)
{
new_list = png_voidcast(png_bytep, png_malloc(png_ptr,
5 * (num_chunks + old_num_chunks)));
@ -1449,7 +1449,7 @@ png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr,
info_ptr->row_pointers = row_pointers;
if (row_pointers)
if (row_pointers != NULL)
info_ptr->valid |= PNG_INFO_IDAT;
}
#endif
@ -1536,7 +1536,7 @@ png_set_user_limits (png_structrp png_ptr, png_uint_32 user_width_max,
void PNGAPI
png_set_chunk_cache_max (png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
{
if (png_ptr)
if (png_ptr != NULL)
png_ptr->user_chunk_cache_max = user_chunk_cache_max;
}
@ -1545,7 +1545,7 @@ void PNGAPI
png_set_chunk_malloc_max (png_structrp png_ptr,
png_alloc_size_t user_chunk_malloc_max)
{
if (png_ptr)
if (png_ptr != NULL)
png_ptr->user_chunk_malloc_max = user_chunk_malloc_max;
}
#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
@ -1563,7 +1563,7 @@ png_set_benign_errors(png_structrp png_ptr, int allowed)
* is the default behavior if png_set_benign_errors() is not called).
*/
if (allowed)
if (allowed != 0)
png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN |
PNG_FLAG_APP_WARNINGS_WARN | PNG_FLAG_APP_ERRORS_WARN;

17
src/libpng/pngtrans.c
View File

@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* Last changed in libpng 1.6.9 [February 6, 2014]
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
@ -327,9 +327,16 @@ png_do_swap(png_row_infop row_info, png_bytep row)
for (i = 0; i < istop; i++, rp += 2)
{
#ifdef PNG_BUILTIN_BSWAP16_SUPPORTED
/* Feature added to libpng-1.6.11 for testing purposes, not
* enabled by default.
*/
*(png_uint_16*)rp = __builtin_bswap16(*(png_uint_16*)rp);
#else
png_byte t = *rp;
*rp = *(rp + 1);
*(rp + 1) = t;
#endif
}
}
}
@ -503,7 +510,7 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
{
if (row_info->bit_depth == 8)
{
if (at_start) /* Skip initial filler */
if (at_start != 0) /* Skip initial filler */
++sp;
else /* Skip initial channel and, for sp, the filler */
sp += 2, ++dp;
@ -517,7 +524,7 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
else if (row_info->bit_depth == 16)
{
if (at_start) /* Skip initial filler */
if (at_start != 0) /* Skip initial filler */
sp += 2;
else /* Skip initial channel and, for sp, the filler */
sp += 4, dp += 2;
@ -543,7 +550,7 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
{
if (row_info->bit_depth == 8)
{
if (at_start) /* Skip initial filler */
if (at_start != 0) /* Skip initial filler */
++sp;
else /* Skip initial channels and, for sp, the filler */
sp += 4, dp += 3;
@ -557,7 +564,7 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
else if (row_info->bit_depth == 16)
{
if (at_start) /* Skip initial filler */
if (at_start != 0) /* Skip initial filler */
sp += 2;
else /* Skip initial channels and, for sp, the filler */
sp += 8, dp += 6;

21
src/libpng/pngwrite.c
View File

@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file
*
* Last changed in libpng 1.6.10 [March 6, 2014]
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
@ -432,6 +432,7 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr)
/* Write end of PNG file */
png_write_IEND(png_ptr);
/* This flush, added in libpng-1.0.8, removed from libpng-1.0.9beta03,
* and restored again in libpng-1.2.30, may cause some applications that
* do not set png_ptr->output_flush_fn to crash. If your application
@ -479,7 +480,7 @@ png_create_write_struct,(png_const_charp user_png_ver, png_voidp error_ptr,
{
#ifndef PNG_USER_MEM_SUPPORTED
png_structrp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
error_fn, warn_fn, NULL, NULL, NULL);
error_fn, warn_fn, NULL, NULL, NULL);
#else
return png_create_write_struct_2(user_png_ver, error_ptr, error_fn,
warn_fn, NULL, NULL, NULL);
@ -492,7 +493,7 @@ png_create_write_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr,
png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED)
{
png_structrp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
error_fn, warn_fn, mem_ptr, malloc_fn, free_fn);
error_fn, warn_fn, mem_ptr, malloc_fn, free_fn);
#endif /* PNG_USER_MEM_SUPPORTED */
if (png_ptr != NULL)
{
@ -525,10 +526,10 @@ png_create_write_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr,
* applications that must not fail to write at all costs!
*/
#ifdef PNG_BENIGN_WRITE_ERRORS_SUPPORTED
png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN;
/* In stable builds only warn if an application error can be completely
* handled.
*/
png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN;
#endif
/* App warnings are warnings in release (or release candidate) builds but
@ -826,7 +827,7 @@ png_write_row(png_structrp png_ptr, png_const_bytep row)
{
png_do_write_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass);
/* This should always get caught above, but still ... */
if (!(row_info.width))
if (row_info.width == 0)
{
png_write_finish_row(png_ptr);
return;
@ -2177,7 +2178,7 @@ png_image_write_main(png_voidp argument)
* write an interlaced image.
*/
if (write_16bit)
if (write_16bit != 0)
{
/* The gamma here is 1.0 (linear) and the cHRM chunk matches sRGB. */
png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_LINEAR);
@ -2209,7 +2210,7 @@ png_image_write_main(png_voidp argument)
*
* First check for a little endian system if writing 16 bit files.
*/
if (write_16bit)
if (write_16bit != 0)
{
PNG_CONST png_uint_16 le = 0x0001;
@ -2250,7 +2251,7 @@ png_image_write_main(png_voidp argument)
png_const_bytep row = png_voidcast(png_const_bytep, display->buffer);
ptrdiff_t row_bytes = display->row_stride;
if (linear)
if (linear != 0)
row_bytes *= (sizeof (png_uint_16));
if (row_bytes < 0)
@ -2283,7 +2284,7 @@ png_image_write_main(png_voidp argument)
int result;
display->local_row = row;
if (write_16bit)
if (write_16bit != 0)
result = png_safe_execute(image, png_write_image_16bit, display);
else
result = png_safe_execute(image, png_write_image_8bit, display);
@ -2292,7 +2293,7 @@ png_image_write_main(png_voidp argument)
png_free(png_ptr, row);
/* Skip the 'write_end' on error: */
if (!result)
if (result == 0)
return 0;
}

24
src/libpng/pngwutil.c
View File

@ -1,8 +1,8 @@
/* pngwutil.c - utilities to write a PNG file
*
* Last changed in libpng 1.6.2 [April 25, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* Last changed in libpng 1.6.11 [June 12, 2014]
* Copyright (c) 1998-2014 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.)
*
@ -699,7 +699,7 @@ png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key)
if ((ch > 32 && ch <= 126) || (ch >= 161 /*&& ch <= 255*/))
*new_key++ = ch, ++key_len, space = 0;
else if (!space)
else if (space == 0)
{
/* A space or an invalid character when one wasn't seen immediately
* before; output just a space.
@ -711,14 +711,14 @@ png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key)
bad_character = ch;
}
else if (!bad_character)
else if (bad_character == 0)
bad_character = ch; /* just skip it, record the first error */
}
if (key_len > 0 && space) /* trailing space */
{
--key_len, --new_key;
if (!bad_character)
if (bad_character == 0)
bad_character = 32;
}
@ -732,7 +732,7 @@ png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key)
if (*key) /* keyword too long */
png_warning(png_ptr, "keyword truncated");
else if (bad_character)
else if (bad_character != 0)
{
PNG_WARNING_PARAMETERS(p)
@ -898,7 +898,7 @@ png_write_IHDR(png_structrp png_ptr, png_uint_32 width, png_uint_32 height,
/* Write the chunk */
png_write_complete_chunk(png_ptr, png_IHDR, buf, (png_size_t)13);
if (!(png_ptr->do_filter))
if ((png_ptr->do_filter) == PNG_NO_FILTERS)
{
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE ||
png_ptr->bit_depth < 8)
@ -1193,6 +1193,7 @@ png_write_iCCP(png_structrp png_ptr, png_const_charp name,
png_uint_32 profile_len;
png_byte new_name[81]; /* 1 byte for the compression byte */
compression_state comp;
png_uint_32 temp;
png_debug(1, "in png_write_iCCP");
@ -1207,7 +1208,8 @@ png_write_iCCP(png_structrp png_ptr, png_const_charp name,
if (profile_len < 132)
png_error(png_ptr, "ICC profile too short");
if (profile_len & 0x03)
temp = (png_uint_32) (*(profile+8));
if (temp > 3 && (profile_len & 0x03))
png_error(png_ptr, "ICC profile length invalid (not a multiple of 4)");
{
@ -1608,7 +1610,7 @@ png_write_tEXt(png_structrp png_ptr, png_const_charp key, png_const_charp text,
*/
png_write_chunk_data(png_ptr, new_key, key_len + 1);
if (text_len)
if (text_len != 0)
png_write_chunk_data(png_ptr, (png_const_bytep)text, text_len);
png_write_chunk_end(png_ptr);
@ -1734,7 +1736,7 @@ png_write_iTXt(png_structrp png_ptr, int compression, png_const_charp key,
png_text_compress_init(&comp, (png_const_bytep)text, strlen(text));
if (compression)
if (compression != 0)
{
if (png_text_compress(png_ptr, png_iTXt, &comp, prefix_len) != Z_OK)
png_error(png_ptr, png_ptr->zstream.msg);
@ -1757,7 +1759,7 @@ png_write_iTXt(png_structrp png_ptr, int compression, png_const_charp key,
png_write_chunk_data(png_ptr, (png_const_bytep)lang_key, lang_key_len);
if (compression)
if (compression != 0)
png_write_compressed_data_out(png_ptr, &comp);
else