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Third Party Libpng
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5b9a28f2
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Third Party Libpng
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体验新版 GitCode,发现更多精彩内容 >>
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5b9a28f2
编写于
11月 25, 2012
作者:
G
Glenn Randers-Pehrson
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差异文件
[libpng16] Trivial editing of commentary in pngrutil.c
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5f4b95e5
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1
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pngrutil.c
pngrutil.c
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pngrutil.c
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5b9a28f2
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@@ -196,7 +196,7 @@ png_crc_read(png_structrp png_ptr, png_bytep buf, png_uint_32 length)
}
/* Optionally skip data and then check the CRC. Depending on whether we
* are reading a ancillary or critical chunk, and how the program has set
* are reading a
n
ancillary or critical chunk, and how the program has set
* things up, we may calculate the CRC on the data and print a message.
* Returns '1' if there was a CRC error, '0' otherwise.
*/
...
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@@ -282,7 +282,7 @@ png_crc_error(png_structrp png_ptr)
/* Manage the read buffer; this simply reallocates the buffer if it is not small
* enough (or if it is not allocated). The routine returns a pointer to the
* buffer
,
if an error occurs and 'warn' is set the routine returns NULL, else
* buffer
;
if an error occurs and 'warn' is set the routine returns NULL, else
* it will call png_error (via png_malloc) on failure. (warn == 2 means
* 'silent').
*/
...
...
@@ -357,11 +357,11 @@ png_inflate_claim(png_structrp png_ptr, png_uint_32 owner, int window_bits)
/* Implementation note: unlike 'png_deflate_claim' this internal function
* does not take the size of the data as an argument. Some efficiency could
* be gained by using this when it is known *if* the zlib stream itself does
* not record the number
, however this is a chimera: the original writer of
*
the PNG may have selected a lower window size, and we really must follow
*
that because, for systems with with limited capabilities, we would
*
otherwise reject the applications attempts to use a smaller window size.
*
(zlib doesn't have an interface to say "this or lower"!)
* not record the number
; however, this is an illusion: the original writer
*
follow of the PNG may have selected a lower window size, and we really
*
must do that because, for systems with with limited capabilities, we
*
would otherwise reject the application's attempts to use a smaller window
*
size (zlib doesn't have an interface to say "this or lower"!).
*
* inflateReset2 was added to zlib 1.2.4; before this the window could not be
* reset, therefore it is necessary to always allocate the maximum window
...
...
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