diff options
Diffstat (limited to 'plugins/AdvaImg/src/LibPNG/pngstruct.h')
| -rw-r--r-- | plugins/AdvaImg/src/LibPNG/pngstruct.h | 39 |
1 files changed, 17 insertions, 22 deletions
diff --git a/plugins/AdvaImg/src/LibPNG/pngstruct.h b/plugins/AdvaImg/src/LibPNG/pngstruct.h index bec30845fa..d8cc70071f 100644 --- a/plugins/AdvaImg/src/LibPNG/pngstruct.h +++ b/plugins/AdvaImg/src/LibPNG/pngstruct.h @@ -1,8 +1,8 @@ /* pngstruct.h - header file for PNG reference library
*
- * Last changed in libpng 1.6.1 [March 28, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.28 [January 5, 2017]
+ * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -219,16 +219,18 @@ struct png_struct_def png_uint_32 row_number; /* current row in interlace pass */
png_uint_32 chunk_name; /* PNG_CHUNK() id of current chunk */
png_bytep prev_row; /* buffer to save previous (unfiltered) row.
- * This is a pointer into big_prev_row
+ * While reading this is a pointer into
+ * big_prev_row; while writing it is separately
+ * allocated if needed.
*/
png_bytep row_buf; /* buffer to save current (unfiltered) row.
- * This is a pointer into big_row_buf
+ * While reading, this is a pointer into
+ * big_row_buf; while writing it is separately
+ * allocated.
*/
-#ifdef PNG_WRITE_SUPPORTED
- png_bytep sub_row; /* buffer to save "sub" row when filtering */
- png_bytep up_row; /* buffer to save "up" row when filtering */
- png_bytep avg_row; /* buffer to save "avg" row when filtering */
- png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */
+#ifdef PNG_WRITE_FILTER_SUPPORTED
+ png_bytep try_row; /* buffer to save trial row when filtering */
+ png_bytep tst_row; /* buffer to save best trial row when filtering */
#endif
png_size_t info_rowbytes; /* Added in 1.5.4: cache of updated row bytes */
@@ -247,7 +249,7 @@ struct png_struct_def png_byte filter; /* file filter type (always 0) */
png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
png_byte pass; /* current interlace pass (0 - 6) */
- png_byte do_filter; /* row filter flags (see PNG_FILTER_ below ) */
+ png_byte do_filter; /* row filter flags (see PNG_FILTER_ in png.h ) */
png_byte color_type; /* color type of file */
png_byte bit_depth; /* bit depth of file */
png_byte usr_bit_depth; /* bit depth of users row: write only */
@@ -261,6 +263,9 @@ struct png_struct_def /* pixel depth used for the row buffers */
png_byte transformed_pixel_depth;
/* pixel depth after read/write transforms */
+#if ZLIB_VERNUM >= 0x1240
+ png_byte zstream_start; /* at start of an input zlib stream */
+#endif /* Zlib >= 1.2.4 */
#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
png_uint_16 filler; /* filler bytes for pixel expansion */
#endif
@@ -346,19 +351,9 @@ struct png_struct_def png_bytep quantize_index; /* index translation for palette files */
#endif
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- png_byte heuristic_method; /* heuristic for row filter selection */
- png_byte num_prev_filters; /* number of weights for previous rows */
- png_bytep prev_filters; /* filter type(s) of previous row(s) */
- png_uint_16p filter_weights; /* weight(s) for previous line(s) */
- png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */
- png_uint_16p filter_costs; /* relative filter calculation cost */
- png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */
-#endif
-
- /* Options */
+/* Options */
#ifdef PNG_SET_OPTION_SUPPORTED
- png_byte options; /* On/off state (up to 4 options) */
+ png_uint_32 options; /* On/off state (up to 16 options) */
#endif
#if PNG_LIBPNG_VER < 10700
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