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[devel] Reverted previous change (png_memset loop)

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It does not seem to promise any benefit to libpng.
This commit is contained in:
Glenn Randers-Pehrson
2009-08-29 16:25:19 -05:00
parent 10ee432860
commit 8551d59672
3 changed files with 1 additions and 28 deletions
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2
ANNOUNCE
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@@ -535,8 +535,6 @@ version 1.4.0beta77 [August 27, 2009]
Various bugfixes and improvements to CMakeLists.txt (Philip Lowman) Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
version 1.4.0beta78 [August 29, 2009] version 1.4.0beta78 [August 29, 2009]
Added abililty to configure libpng to use a loop instead of memset(),
using PNG_USE_MEMSET_LOOP.
version 1.4.0betaN [future] version 1.4.0betaN [future]
Build shared libraries with -lz and sometimes -lm. Build shared libraries with -lz and sometimes -lm.

2
CHANGES
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@@ -2221,8 +2221,6 @@ version 1.4.0beta77 [August 27, 2009]
Various bugfixes and improvements to CMakeLists.txt (Philip Lowman) Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
version 1.4.0beta78 [August 29, 2009] version 1.4.0beta78 [August 29, 2009]
Added abililty to configure libpng to use a loop instead of memset(),
using PNG_USE_MEMSET_LOOP.
version 1.4.0betaN [future] version 1.4.0betaN [future]
Build shared libraries with -lz and sometimes -lm. Build shared libraries with -lz and sometimes -lm.

25
pngconf.h
View File

@@ -698,13 +698,6 @@
#define PNG_STRING_NEWLINE "\n" #define PNG_STRING_NEWLINE "\n"
#endif #endif
/* Added at libpng-1.4.0 */
#if !defined(PNG_NO_USE_SYSTEM_MEMSET) || defined(PNG_USE_MEMSET_LOOP)
# ifndef PNG_USE_SYSTEM_MEMSET
# define PNG_USE_SYSTEM_MEMSET
# endif
#endif
/* These are currently experimental features, define them if you want */ /* These are currently experimental features, define them if you want */
/* very little testing */ /* very little testing */
@@ -1330,16 +1323,6 @@ typedef char FAR * FAR * FAR * png_charppp;
# endif # endif
#endif #endif
/* Added at libpng-1.4.0 */
#ifndef PNG_USE_SYSTEM_MEMSET
# define png_memset(array,value,num) \
{ \
int ipng_memset; \
for (ipng_memset=0; ipng_memset<(num); ++ipng_memset) \
((png_bytep)array)[ipng_memset] = (value); \
}
#endif
#if defined(USE_FAR_KEYWORD) #if defined(USE_FAR_KEYWORD)
/* use this to make far-to-near assignments */ /* use this to make far-to-near assignments */
# define CHECK 1 # define CHECK 1
@@ -1351,9 +1334,7 @@ typedef char FAR * FAR * FAR * png_charppp;
# define png_strlen _fstrlen # define png_strlen _fstrlen
# define png_memcmp _fmemcmp /* SJT: added */ # define png_memcmp _fmemcmp /* SJT: added */
# define png_memcpy _fmemcpy # define png_memcpy _fmemcpy
# ifndef png_memset # define png_memset _fmemset
# define png_memset _fmemset
# endif
# define png_sprintf sprintf # define png_sprintf sprintf
#else #else
# if defined(_WINDOWS_) /* favor Windows over C runtime fns */ # if defined(_WINDOWS_) /* favor Windows over C runtime fns */
@@ -1364,9 +1345,7 @@ typedef char FAR * FAR * FAR * png_charppp;
# define png_strlen lstrlenA # define png_strlen lstrlenA
# define png_memcmp memcmp # define png_memcmp memcmp
# define png_memcpy CopyMemory # define png_memcpy CopyMemory
# ifndef png_memset
# define png_memset memset # define png_memset memset
# endif
# define png_sprintf wsprintfA # define png_sprintf wsprintfA
# else # else
# define CVT_PTR(ptr) (ptr) # define CVT_PTR(ptr) (ptr)
@@ -1376,9 +1355,7 @@ typedef char FAR * FAR * FAR * png_charppp;
# define png_strlen strlen # define png_strlen strlen
# define png_memcmp memcmp /* SJT: added */ # define png_memcmp memcmp /* SJT: added */
# define png_memcpy memcpy # define png_memcpy memcpy
# ifndef png_memset
# define png_memset memset # define png_memset memset
# endif
# define png_sprintf sprintf # define png_sprintf sprintf
# ifndef PNG_NO_SNPRINTF # ifndef PNG_NO_SNPRINTF
# ifdef _MSC_VER # ifdef _MSC_VER