rockbox/firmware/common/vuprintf.c, branch quake5

Limit float formatting to only targets building Quake

2019-07-20T03:20:56+00:00

The Quake plugin is the only code that actually relies on float
formatting. Because Quake only runs on targets with huge memory
anyway, limiting their formatting to just those targets will minimize
the increased memory use in the core.

Change-Id: Icdbe26ec6ede564861cc01ac4add76a12b00ecd5

Add proper float formatting to vuprintf

2019-07-20T02:07:41+00:00

Wanted to see how gnarly it is to do.

Big number handling could be done with better algorithms
since it can get a bit slow with large integers or tiny
fractions with many lead zeros when only a few digits are
needed.

Anyway, it supports %e, %E, %f, %F, %g and %G. No %a or long
double support seems warranted at the moment.

Assumes IEEE 754 double format but it's laid out to be able to
replace a function to handle others if needed.

Tested in a driver program that has a duplicate vuprintf and
the content was pasted in once it looked sound enough to put
up a patch.

Change-Id: I6dae8624d3208e644c88e36e6a17d8fc9144f988

Fix vuprintf fix possible %s buffer over-read

2018-11-10T01:47:19+00:00

when precision is not specified memchr recieved -1 for count
count is unsigned so it looks in a potentially very large area
for a terminator and returns this whole area if \0 is not found

Instead we should use memchr when precision is specified
and if precision is not specified use strlen

Fixes 60+Mb Config.cfg files

Change-Id: Ic4d1439334588f999c9071235430c42df2af5cc4

Don't enable full vuprintf file in bootloader. Saves ~2KB packed space when patching clip+ OF.

2018-05-22T23:07:57+00:00

Change-Id: Ie03714778918bfb4a1087f60534d60ff349a8330

Revert "Support floating-point formatting"

2017-12-25T00:22:17+00:00

This reverts commit 01c6dcf6c7b9bb1ad2fa0450f99bacc5f3d3e04b.

The hack isn't used in duke, so having it is redundant.

Change-Id: Ieb36d75718e0c2d1305440d08021744625117886

fix red

2017-12-24T02:28:20+00:00

Change-Id: I20f1bd6f0208f6108d68fb59206b09dd9da4f1af

Port of Duke Nukem 3D

2017-12-24T02:01:26+00:00

This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.

Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9

Support floating-point formatting

2017-12-24T01:55:02+00:00

This is just a quick and dirty way to get %f formatting to work for
some games. It works.

Change-Id: I75585e0c6a0f9d6db41a87b71ca405b067d8b85d

Implement a much more capable vuprintf()

2017-11-21T10:00:27+00:00

New support as well as some buggy support fixed.

Still no floating point support if ever that would be desired.

Support (*):
* Flags: '-', '+', ' ', '#', '0'

* Width and precision: 'n', '.n', '*' and '.*'

* Length modifiers: 'hh', 'h', 'j', 'l', 'll', 't', 'z'

* Radix: 'c', 'd', 'i', 'n', 'o', 'p/P', 's', 'u', 'x/X'

(*) Provision exists to switch lesser-used stuff on or off or when
certain functionality isn't desired (bootloader?). The compulsory
radixes are everything but 'o', 'n', 'p/P' and 'x/X' with length
modifiers being optional. The default setup is 'l', 'z', 'c', 'd',
'p/P', 's', 'u', 'x/X'.

* Move fdprintf() to its own file. It was in a strange place.

* Make callers compatible and fix a couple snprintf() bugs while
at it.

Could smush it down in size but I'm gonna get over the binsize
neurosis and just the let optimizer do its thing.

Change-Id: Ibdc613a9b6775802c188b29b9dd46c568c94f7c3