[MPlayer-dev-eng] [PATCH] libass fixes and additions

[Grigori G]

Hi,

here's some more libass-related hackery. This time I've split up 
everything into tiny pieces. The patches are supplied in the format as 
output by git's format-patch, I hope that is okay.

Now, on to the patches.

* 0001-Ignore-PlayResX-Y-aspect-ratio-for-font-aspect-ratio.patch
vsfilter, perian, aegisub, et al ignore the PlayResX/PlayResY aspect 
ratio when scaling fonts. This replicates the behaviour.

* 0002-Allow-shadow-without-border.patch
libass always set a border of 1.0 when a shadow was used. Maybe there's 
a reason for that, but I don't know. I do know of typesets which use 
shadows without borders, though.

* 0003-Fix-memory-leak-in-blur-handling.patch
The \blur patch introduced a memory leak, as the memory that is newly 
allocated after blur size changes isn't freed. Now realloc is used 
instead. In addition, the blur size scale is in line with vsfilter.

* 0004-Fix-warnings.patch
This silents two rather harmless gcc warnings.

* 0005-Hack-use-a-compromise-to-force-somewhat-reasonable.patch
This is the "compromise" hack for the anti-aliasing "fix" I had in the 
last patch already. This might be just a hack, "wrong" and whatever, but 
it still makes the area where glyph and outline overlap a bit at least 
decent looking in all cases (which I tested).

* 0006-Support-one-of-these-braindead-vsfilter-special-case.patch
vsfilter has very stupid behaviour in case PlayResX/Y aren't specified. 
As stupid as this may be, since vsfilter is more or less the reference 
implementation, it makes sense to emulate it.

* 0007-Parse-integers-as-doubles-and-then-convert-to-the-ne.patch
Parse all integers as doubles first and later convert them to the 
nearest integer. This is the much requested "decimal point" support.

* 0008-Round-shadow-displacement-to-nearest-int.patch
There's not much to say about it.

* 0009-Add-simple-blur-with-1-2-1-for-be.patch
Use a kernel blur with [[1,2,1], [1,2,1], [1,2,1]] matrix for \be. This 
is the same filter used by vsfilter and also a bit faster than the 
gaussian blur.

* 0010-Add-support-for-compositing-of-overlapping-glyph-bor.patch
This is very experimental, comments appreciated. :)
Overlapping glyphs, especially outlines, can look very ugly, in case 
they are translucent -- the luminance just adds up!
This patch adds a pass after the final rendering, where the last two 
bitmaps, if translucent and overlapping, are composited together, e.g. 
for each pixel the maximum value of both bitmaps is used.
See http://greg.geekmind.org/mplayer/comp.png for a comparison.

* 0011-Scale-shadow-displacement-and-blur-size-like-border.patch
There's not much to say about it.

* 0012-Correctly-re-initialize-glyph_info_t.patch
It seems like a glyph_info isn't correctly re-initialized after each 
event. This leads to minor quirks with positioning in at least one case 
(gg's Maria+Holic, Episode 03, 09:06)
This patch memsets the whole glyph_info instead of only setting certain 
fields to 0.


Grigori
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0001-Ignore-PlayResX-Y-aspect-ratio-for-font-aspect-ratio.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment.asc>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0002-Allow-shadow-without-border.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment.txt>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0003-Fix-memory-leak-in-blur-handling.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0001.asc>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0004-Fix-warnings.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0001.txt>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0005-Hack-use-a-compromise-to-force-somewhat-reasonable.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0002.asc>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0006-Support-one-of-these-braindead-vsfilter-special-case.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0002.txt>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0007-Parse-integers-as-doubles-and-then-convert-to-the-ne.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0003.asc>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0008-Round-shadow-displacement-to-nearest-int.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0003.txt>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0009-Add-simple-blur-with-1-2-1-for-be.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0004.asc>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0010-Add-support-for-compositing-of-overlapping-glyph-bor.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0004.txt>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0011-Scale-shadow-displacement-and-blur-size-like-border.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0005.asc>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 0012-Correctly-re-initialize-glyph_info_t.patch
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20090218/1cd1623c/attachment-0005.txt>