[libpng15] Removed a redundant test from png_set_IHDR().

ANNOUNCE

@@ -1,5 +1,5 @@
 
-Libpng 1.5.17beta01 - May 23, 2013
+Libpng 1.5.17beta01 - June 4, 2013
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -24,52 +24,10 @@ Other information:
    1.5.17beta01-README.txt
    1.5.17beta01-LICENSE.txt
 
-Changes since the last public release (1.5.15):
+Changes since the last public release (1.5.16):
 
-Version 1.5.16beta01 [April 25, 2013]
+Version 1.5.17beta01 [June 4, 2013]
-  Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c
+  Removed a redundant test from png_set_IHDR().
-    (Flavio Medeiros).
-  Revised stack marking in arm/filter_neon.S and configure.ac
-  Ensure that NEON filter stuff is completely disabled when switched 'off'.
-    Previously the ARM NEON specific files were still built if the option
-    was switched 'off' as opposed to being explicitly disabled.
-  Avoid a compiler warning about unused png_ptr in translate_gamma_flags()
-
-Version 1.5.16beta02 [April 26, 2013]
-  Revise pngtest.c to skip tests of unsupported features.
-  Regenerated configure files.
-
-Version 1.5.16beta03 [April 26, 2013]
-  Test for 'arm*' not just 'arm' in the host_cpu configure variable.
-
-Version 1.5.16beta04 [May 1, 2013]
-  Expanded manual paragraph about writing private chunks, particularly
-    the need to call png_set_keep_unknown_chunks() when writing them.
-
-Version 1.5.16beta05 [May 9, 2013]
-  Updated contrib/pngminus/pnm2png.c (Paul Stewart):
-    Check for EOF
-    Ignore "#" delimited comments in input file to pnm2png.c.
-    Fixed whitespace handling
-    Added a call to png_set_packing()
-    Initialize dimension values so if sscanf fails at least we have known
-      invalid values.
-
-Version 1.5.16beta06 [May 12, 2013]
-  Allow contrib/pnminus/pnm2png.c to compile without WRITE_INVERT and WRITE_PACK
-    supported (writes error message that it can't read P1 or P4 PBM files).
-  Revised contrib/pngminim/*/makefile to separate CPPFLAGS and CFLAGS, and
-    to generate pnglibconf.h with the right zlib header files.
-  Ported contrib/pngminus/pnm2png.c changes back from libpng-1.6.3beta06,
-    to use unsigned long, not png_uint_32 arguments to sscanf().
-
-Version 1.5.16rc01 [May 16, 2013]
-  No changes.
-
-Version 1.5.16 [May 23, 2013]
-  No changes.
-
-Version 1.5.17beta01 [May 23, 2013]
 
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CHANGES

@@ -4113,7 +4113,8 @@ Version 1.5.16rc01 [May 16, 2013]
 Version 1.5.16 [May 23, 2013]
   No changes.
 
-Version 1.5.17beta01 [May 23, 2013]
+Version 1.5.17beta01 [June 4, 2013]
+  Removed a redundant test from png_set_IHDR().
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit

pngset.c

@@ -252,16 +252,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
 
    info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth);
 
-   /* Check for potential overflow */
+   info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width);
-   if (width >
-       (PNG_UINT_32_MAX >> 3)      /* 8-byte RRGGBBAA pixels */
-       - 48       /* bigrowbuf hack */
-       - 1        /* filter byte */
-       - 7*8      /* rounding of width to multiple of 8 pixels */
-       - 8)       /* extra max_pixel_depth pad */
-      info_ptr->rowbytes = 0;
-   else
-      info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width);
 }
 
 #ifdef PNG_oFFs_SUPPORTED