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[libpng16] Deflate/inflate was reworked to move common zlib calls into single

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functions [rw]util.c.  A new shared keyword check routine was also added
and the 'zbuf' is no longer allocated on progressive read.  It is now
possible to call png_inflate() incrementally.
This commit is contained in:
John Bowler
2012-03-09 09:15:18 -06:00
committed by Glenn Randers-Pehrson
parent 6038b80277
commit b5d0051dcb
15 changed files with 1579 additions and 1475 deletions
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6
pngpread.c
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@@ -838,7 +838,7 @@ png_push_read_IDAT(png_structrp png_ptr)
png_crc_finish(png_ptr, 0);
png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
png_ptr->mode |= PNG_AFTER_IDAT;
png_ptr->flags &= ~PNG_FLAG_ZSTREAM_IN_USE;
png_ptr->zowner = 0;
}
}
@@ -894,7 +894,7 @@ png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer,
{
/* Terminate the decompression. */
png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
png_ptr->flags &= ~PNG_FLAG_ZSTREAM_IN_USE;
png_ptr->zowner = 0;
/* This may be a truncated stream (missing or
* damaged end code). Treat that as a warning.
@@ -923,7 +923,7 @@ png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer,
/* Extra data. */
png_warning(png_ptr, "Extra compressed data in IDAT");
png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
png_ptr->flags &= ~PNG_FLAG_ZSTREAM_IN_USE;
png_ptr->zowner = 0;
/* Do no more processing; skip the unprocessed
* input check below.