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22 Commits

Author SHA1 Message Date
Hein-Pieter van Braam cada03eedb Don't use -ffast-math or other unsafe math optimizations 
Godot supports many different compilers and for production releases we
have to support 3 currently: GCC8, Clang6, and MSVC2017. These compilers
all do slightly different things with -ffast-math and it is causing
issues now. See #24841, #24540, #10758, #10070. And probably other
complaints about physics differences between release and release_debug
builds.

I've done some performance comparisons on Linux x86_64. All tests are
ran 20 times.

Bunnymark: (higher is better)
(bunnies)    min    max  stdev average
fast-math   7332   7597    71     7432
this pr     7379   7779   108     7621 (102%)

FPBench (gdscript port http://fpbench.org/) (lower is better)
(ms)
fast-math  15441  16127   192    15764
this pr    15671  16855   326    16001  (99%)

Float_add (adding floats in a tight loop) (lower is better)
(sec)
fast-math   5.49   5.78  0.07     5.65
this pr     5.65   5.90  0.06     5.76  (98%)

Float_div (dividing floats in a tight loop) (lower is better)
(sec)
fast-math  11.70  12.36  0.18    11.99
this pr    11.92  12.32  0.12    12.12  (99%)

Float_mul (multiplying floats in a tight loop) (lower is better)
(sec)
fast-math  11.72  12.17  0.12    11.93
this pr    12.01  12.62  0.17    12.26  (97%)

I have also looked at FPS numbers for tps-demo, 3d platformer, 2d
platformer, and sponza and could not find any measurable difference.

I believe that given the issues and oft-reported (physics) glitches on
release builds I believe that the couple of percent of tight-loop
floating point performance regression is well worth it.

This fixes #24540 and fixes #24841

(cherry picked from commit e5b335d367)
 2019-07-03 15:53:22 +02:00
Rémi Verschelde 0eab0d9343 Update copyright statements to 2019 
Happy new year to the wonderful Godot community!
 2019-01-03 11:41:35 +01:00
Juan Linietsky 710970f004 Properly resize textures so they can be ETC compressed, fixes #15139 
this may make import times slower though, will have to wait for 3.1 for background texture import and compressonator.
 2018-01-12 11:46:42 -03:00
Rémi Verschelde e4213e66b2 Add missing copyright headers and fix formatting 
Using `misc/scripts/fix_headers.py` on all Godot files.
Some missing header guards were added, and the header inclusion order
was fixed in the Bullet module.
 2018-01-05 01:22:23 +01:00
Rémi Verschelde b50a9114b1 Update copyright statements to 2018 
Happy new year to the wonderful Godot community!
 2018-01-01 14:40:47 +01:00
Matthias Hoelzl 26a1621678 Change -std=gnu++11 to -stc=c++11 and don't pass flag to MSVC 2017-12-12 18:58:51 +01:00
MillionOstrich 8b8414b8aa Fix size mismatch in _compress_etc 
Use j for inner loop
 2017-11-20 22:36:58 +00:00
Rémi Verschelde 677e95d8d1 doc: Make all module docs self-contained 2017-11-15 21:29:33 +01:00
Elliott Sales de Andrade 5be675eb03 Use BoolVariable for module options. 2017-09-25 14:36:30 -04:00
Elliott Sales de Andrade ffab67b8da Use BoolVariable in target/component/advanced options. 2017-09-25 14:36:02 -04:00
Juan Linietsky 89e090edef Fix ETC2 import for luminance/lumalpha textures, fixes #10421 2017-09-04 18:45:41 -03:00
Rémi Verschelde dac150108a Merge pull request #10846 from hpvb/fix-sign-compare 
Fix signed and unsigned comparisons
 2017-09-01 21:52:55 +02:00
Ignacio Etcheverry 2f79c84ff5 etc: Append -std=gnu++11 to CCFLAGS instead of CXXFLAGS 
This way it can override the -std flags passed to scons.
 2017-09-01 18:51:50 +02:00
Hein-Pieter van Braam f9467ec1ea Fix signed and unsigned comparisons 
The first in my quest to make Godot 3.x compile with -Werror on GCC7
 2017-09-01 08:13:12 +02:00
Hein-Pieter van Braam d44414c711 Disable -ffast-math for etc2comp 
Apparently -ffast-math generates incorrect code with recent versions of
GCC and Clang. The manual page for GCC warns about this possibility.

In my tests it doesn't actually appear to be measurably slower in this
case, and this is used in a batch process so it seems safe to disable
this.

This fixes #10758 and fixes #10070
 2017-08-30 11:51:24 +02:00
Rémi Verschelde bd282ff43f Use HTTPS URL for Godot's website in the headers 2017-08-27 14:16:55 +02:00
Marcelo Fernandez eab850524e Add closest_power_of_2 func and implement mix_rate/latency on OS X 2017-08-17 19:51:13 -03:00
Juan Linietsky 12a8fedfe6 Some changes to dual paraboloid envmap generation, fixes somme bleeding 2017-07-05 19:39:45 -03:00
Rémi Verschelde cb59236ce9 Disable etc2comp and tinyexr modules on non-tools build 
They are not necessary in such configuration, and require C++11
and (on Android) the STL.

Fixes #9273.
 2017-06-30 18:16:38 +02:00
Rémi Verschelde c210de581e etc: Do not overestimate number of CPU threads 
The *2 factor between cores and threads of most modern CPUs
is already taken into account in get_processor_count().
 2017-06-17 10:51:50 +02:00
Juan Linietsky b19225bfce -Fix freezes caused by etccomp2, closes #9183 
-Normalmaps are now detected and imported as RGTC, both in S3TC and ETC2, this improves their quality.
 2017-06-16 21:49:37 -03:00
Ferenc Arn 6a9c990da7 Add ETC1/ETC2 compression support though etc2comp. 
Remove rg-etc1 code. Also updated travis to use ubuntu 14.04.

Fixes #8457.
 2017-05-31 18:59:00 -05:00