Reworked a bit texture rendering to prepare for subtitles rendering.

Moved vertices setup and surface rendering into 2 functions.

K&R and removed variables prefixe.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Close #3907

It creates a subpicture rendering text at the display size.

This is a partial revert of the "fix" introduced in
ffe7367b.

If you encounter a visual bug in the fullscreen controller and you are
using KDE, please upgrade to version 4.6.2 or don't use the Oxygen
theme.

Ref: https://bugs.kde.org/show_bug.cgi?id=254473Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Tried to re-use already existing strings, as far as possible

setHeaderHidden() was introduced in 4.4

This is better for accessibility, I think

Ascending and Descending were wrongly translated as Aflopend and Oplopend, while
it is the other way arround.

Use libass if you want SSA support.
Signed-off-by: Laurent Aimar <fenrir@videolan.org>

Text subtitles are not impacted by this commit.

And avoid a strdup(""); free() for nothing

Close #4559

Here, input_item_GetTitleFbName fails us, since we need to translate
Name, but not Title (I think)
Close  #4551

And close #4542

Close #4324

Close #4296

This is almost useless when you open...
Maybe add the encoding?