opengl: use RV32 instead of RV16 for the OpenGL ES variant, since we got neon assembly optimizations for that

Because we can't efficiently drop the privileges acquired by the UAC it
is wise to remove the possibility for the user to start VLC or view the
README at the end of the installation process.
Signed-off-by: Rafaël Carré <funman@videolan.org>

Previous fix was doing late fixing by skipping multiple entries when
adding, but the multiplication was still done for other ops.
We were just needing to build Indexes list from rows instead of items.

This reverts commit 4cc9d577.

It seems to me it makes more sense like that.
Signed-off-by: Hugo Beauzée-Luyssen <hugo@beauzee.fr>

Signed-off-by: Hugo Beauzée-Luyssen <hugo@beauzee.fr>

close #7051

macosx vout: always use current bounds for picture placements, as we have custom resize constraints in ui code

(in particular, the parameter cfg will not always hold the right window size value)

This is introduces a random hack, which is going to be reverted this fall.

extras/tools: use Mans Rullgard's gas preprocessor variant instead of David Conrad's since it is more up-to-date

Signed-off-by: Rafaël Carré <funman@videolan.org>

Otherwise, it might not have a window handle.

With Qt5, the window type must be checked at run-time: the windowing
system is always defined as Q_WS_QPA.

Conversion from FI32 to S16 is already supported by the Laurent's
generic audio format filter. Conversion to FI32 are useless for lack
of (functional) FI32 encoder or output.

None of the real audio outputs support FI32; they already typically
converted down to S16 internally. Moreover, mixing FI32 requires
64-bits (signed) multiplication, which non-FPU processors typically
do not support natively.

TODO:
- somehow implement mute callback
- initially report right volume to ui

VLC needs QtWidgets (which does not exist in Qt4).