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[libpng16] Revised comments about info_ptr->signature, added CHANGES entry.

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This commit is contained in:
John Bowler
2012-08-10 08:05:53 -05:00
committed by Glenn Randers-Pehrson
parent 5d1df4fdf4
commit 865e14fd32
3 changed files with 6 additions and 0 deletions
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4
pnginfo.h
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@@ -70,11 +70,15 @@ struct png_info_def
png_byte filter_type; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */
png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
/* The following are set by png_set_IHDR, called from the application on
* write, but the are never actually used by the write code.
*/
png_byte channels; /* number of data channels per pixel (1, 2, 3, 4) */
png_byte pixel_depth; /* number of bits per pixel */
png_byte spare_byte; /* to align the data, and for future use */
#ifdef PNG_READ_SUPPORTED
/* This is never set during write */
png_byte signature[8]; /* magic bytes read by libpng from start of file */
#endif