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Eliminated PNG_LEGACY_SUPPORTED

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It is not of any use in libpng-1.4.0; it was only to support binary
compatibility between some old libpng-1.0.x versions.  It should have
been removed from libpng-1.2.x as well but it is too late for that now.
This commit is contained in:
Glenn Randers-Pehrson 2009-06-16 14:12:35 -05:00
parent 38674ec994
commit 33188acf8f
6 changed files with 10 additions and 50 deletions
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1
ANNOUNCE
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@ -482,6 +482,7 @@ version 1.4.0beta63 [June 16, 2009]
available for ignoring known chunks even when not saving unknown chunks.
Adopted preference for consistent use of "#ifdef" and "#ifndef" versus
"#if defined()" and "if !defined()" where possible.
Eliminated PNG_LEGACY_SUPPORTED code.
version 1.4.0betaN [future]
Build shared libraries with -lz and sometimes -lm.

3
CHANGES
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@ -2160,6 +2160,9 @@ version 1.4.0beta63 [June 16, 2009]
Adopted preference for consistent use of "#ifdef" and "#ifndef" versus
"#if defined()" and "if !defined()" where possible.
version 1.4.0beta63 [June 16, 2009]
Eliminated PNG_LEGACY_SUPPORTED code.
version 1.4.0betaN [future]
Build shared libraries with -lz and sometimes -lm.

16
png.h
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@ -1017,8 +1017,7 @@ typedef void (PNGAPI *png_progressive_row_ptr) PNGARG((png_structp, png_bytep,
#endif
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_LEGACY_SUPPORTED)
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
typedef void (PNGAPI *png_user_transform_ptr) PNGARG((png_structp,
png_row_infop, png_bytep));
#endif
@ -1142,12 +1141,8 @@ struct png_struct_def
png_byte sig_bytes; /* magic bytes read/written from start of file */
#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
#ifdef PNG_LEGACY_SUPPORTED
png_byte filler; /* filler byte for pixel expansion */
#else
png_uint_16 filler; /* filler bytes for pixel expansion */
#endif
#endif
#if defined(PNG_bKGD_SUPPORTED)
png_byte background_gamma_type;
@ -1870,21 +1865,18 @@ extern PNG_EXPORT(void,png_set_mem_fn) PNGARG((png_structp png_ptr,
extern PNG_EXPORT(png_voidp,png_get_mem_ptr) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_LEGACY_SUPPORTED)
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
extern PNG_EXPORT(void,png_set_read_user_transform_fn) PNGARG((png_structp
png_ptr, png_user_transform_ptr read_user_transform_fn));
#endif
#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_LEGACY_SUPPORTED)
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
extern PNG_EXPORT(void,png_set_write_user_transform_fn) PNGARG((png_structp
png_ptr, png_user_transform_ptr write_user_transform_fn));
#endif
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_LEGACY_SUPPORTED)
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
extern PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp
png_ptr, png_voidp user_transform_ptr, int user_transform_depth,
int user_transform_channels));

29
pngconf.h
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@ -448,35 +448,6 @@
# endif
#endif
/* The following support, added after version 1.0.0, can be turned off here en
* masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
* with old applications that require the length of png_struct and png_info
* to remain unchanged.
*/
#ifdef PNG_LEGACY_SUPPORTED
# define PNG_NO_FREE_ME
# define PNG_NO_READ_UNKNOWN_CHUNKS
# define PNG_NO_WRITE_UNKNOWN_CHUNKS
# define PNG_NO_READ_USER_CHUNKS
# define PNG_NO_READ_iCCP
# define PNG_NO_WRITE_iCCP
# define PNG_NO_READ_iTXt
# define PNG_NO_WRITE_iTXt
# define PNG_NO_READ_sCAL
# define PNG_NO_WRITE_sCAL
# define PNG_NO_READ_sPLT
# define PNG_NO_WRITE_sPLT
# define PNG_NO_INFO_IMAGE
# define PNG_NO_READ_RGB_TO_GRAY
# define PNG_NO_READ_USER_TRANSFORM
# define PNG_NO_WRITE_USER_TRANSFORM
# define PNG_NO_USER_MEM
# define PNG_NO_READ_EMPTY_PLTE
# define PNG_NO_MNG_FEATURES
# define PNG_NO_FIXED_POINT_SUPPORTED
#endif
/* Ignore attempt to turn off both floating and fixed point support */
#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
!defined(PNG_NO_FIXED_POINT_SUPPORTED)

8
pngrtran.c
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@ -726,8 +726,7 @@ png_set_rgb_to_gray_fixed(png_structp png_ptr, int error_action,
#endif
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_LEGACY_SUPPORTED)
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
void PNGAPI
png_set_read_user_transform_fn(png_structp png_ptr, png_user_transform_ptr
read_user_transform_fn)
@ -739,11 +738,6 @@ png_set_read_user_transform_fn(png_structp png_ptr, png_user_transform_ptr
png_ptr->transformations |= PNG_USER_TRANSFORM;
png_ptr->read_user_transform_fn = read_user_transform_fn;
#endif
#ifdef PNG_LEGACY_SUPPORTED
if (read_user_transform_fn)
png_warning(png_ptr,
"This version of libpng does not support user transforms");
#endif
}
#endif

3
pngtrans.c
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@ -616,8 +616,7 @@ png_do_bgr(png_row_infop row_info, png_bytep row)
#endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_LEGACY_SUPPORTED)
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
void PNGAPI
png_set_user_transform_info(png_structp png_ptr, png_voidp
user_transform_ptr, int user_transform_depth, int user_transform_channels)