[devel] Revise libpng*.txt
about calling png_set_IHDR() multiple times and about the order
of color samples in the tRNS chunk.
diff --git a/libpng-1.4.0beta63.txt b/libpng-1.4.0beta63.txt
index 1387dac..80e6fbe 100644
--- a/libpng-1.4.0beta63.txt
+++ b/libpng-1.4.0beta63.txt
@@ -1,6 +1,6 @@
libpng.txt - A description on how to use and modify libpng
- libpng version 1.4.0beta63 - June 5, 2009
+ libpng version 1.4.0beta63 - June 8, 2009
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -9,7 +9,7 @@
Based on:
- libpng versions 0.97, January 1998, through 1.4.0beta63 - June 5, 2009
+ libpng versions 0.97, January 1998, through 1.4.0beta63 - June 8, 2009
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -1839,8 +1839,9 @@
the IHDR settings. The remaining png_set_*() functions can be called
in any order.
-If you wish, you can reset the compression_type, interlace_type,
-or filter_method later.
+If you wish, you can reset the compression_type, interlace_type, or
+filter_method later by calling png_set_IHDR() again; if you do this, the
+width, height, bit_depth, and color_type must be the same in each call.
png_set_PLTE(png_ptr, info_ptr, palette,
num_palette);
@@ -1903,8 +1904,9 @@
trans_color);
trans - array of transparent entries for
palette (PNG_INFO_tRNS)
- trans_color - graylevel or color sample values of
- the single transparent color for
+ trans_color - graylevel or color sample values
+ (in order red, green, blue) of the
+ single transparent color for
non-paletted images (PNG_INFO_tRNS)
num_trans - number of transparent entries
(PNG_INFO_tRNS)
@@ -3117,7 +3119,7 @@
used them in the past in some now-abandoned MMX assembler
code.
-Functions and their curly brackets are not indented, and
+Functions and their curly braces are not indented, and
exported functions are marked with PNGAPI:
/* This is a public function that is visible to
@@ -3161,7 +3163,7 @@
XIII. Y2K Compliance in libpng
-June 5, 2009
+June 8, 2009
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.