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Anonymous Maarten f1f9e27128 testautomation_math: do relative comparison + more precise correct trigonometric values
If the magnitude of the expected result is small, then we can safely
assume that the actual calculated result matches it to 10 decimal
places.

However, if the magnitude is very large, as it is for some of our exp()
tests, then 10 decimal places represents an unrealistically high level
of precision, for example 24 decimal digits for the test that is
expected to return approximately 6.6e14. IEEE 754 floating point only
has a precision of about 16 decimal digits, causing test failure on
x86 compilers that use an i387 80-bit extended-precision register for
the result and therefore get a slightly different answer.

To avoid this, scale the required precision with the magnitude of the
expected result, so that we accept a maximum error of either 10 decimal
places or 1 part in 1e10, whichever is greater.

[smcv: Added longer commit message explaining why we need this]
(cherry picked from commit 880c69392a)
2024-02-02 07:44:04 -08:00
.github ci: bump actions version tag 2024-01-26 02:33:20 +01:00
android-project Switched SDL_TouchID and SDL_FingerID to be Uint64 with 0 being an invalid value 2024-01-18 10:55:24 -08:00
build-scripts Fix broken mingw i686 buildscript 2024-01-28 17:29:33 -08:00
cmake Don't try to use SDL platform macros in configure-time checks 2024-01-24 14:12:50 +03:00
docs Renderer colors now have floating point precision 2024-01-30 09:48:02 -08:00
include Even more miscellaneous gamepad buttons! 2024-02-01 20:34:05 -08:00
mingw/pkg-support/cmake build: don't add SDL3 subfolder to include path for external projects 2022-11-27 14:33:13 -08:00
src Fixed warning C4701: potentially uninitialized local variable 'srcpixel' used 2024-02-01 21:24:11 -08:00
test testautomation_math: do relative comparison + more precise correct trigonometric values 2024-02-02 07:44:04 -08:00
VisualC Added the environment variable SDL_LOGGING to control default log output 2024-01-27 19:30:22 -08:00
VisualC-GDK Define SDL_PLATFORM_* macros instead of underscored ones (#8875) 2024-01-24 01:40:51 +00:00
VisualC-WinRT Allow optimizing memcpy and memset where possible 2024-01-21 06:55:29 -08:00
wayland-protocols wayland: Use the preferred order of displays exposed by KDE 2024-01-27 02:10:49 -05:00
Xcode Added VisionOS as a supported target to the Xcode project 2024-01-27 11:07:21 -08:00
.clang-format Commented out syntax that causes Visual Studio 2019 to complain on every edit 2022-12-02 00:43:01 -08:00
.clang-tidy Fix size of memcpy in SDL_AudioDeviceFormatChangedAlreadyLocked 2023-08-05 14:14:45 -04:00
.editorconfig Fixed formatting for Haiku cc files 2023-01-25 03:03:41 -08:00
.gitignore Make Xbox GDK code public (and fix some GDK code rot) (#8844) 2024-01-14 20:31:41 -08:00
.wikiheaders-options sdlwiki: SDL3 advises users to include through 'SDL3/SDL.h' 2023-03-21 02:19:19 +01:00
Android.mk Always provide an implementation for all SDL3 symbols 2023-10-12 14:00:47 +02:00
BUGS.txt Cleaned up a few more Bugzilla mentions. 2021-02-12 14:46:49 -05:00
CMakeLists.txt Don't use the system iconv on Apple mobile platforms 2024-02-01 15:53:27 -08:00
CREDITS.md docs: Moved CREDITS and INSTALL to markdown format. 2023-11-29 12:31:27 -05:00
INSTALL.md docs: Moved CREDITS and INSTALL to markdown format. 2023-11-29 12:31:27 -05:00
LICENSE.txt Updated copyright for 2024 2024-01-01 13:15:26 -08:00
README-SDL.txt More HTTPS changes in the documentation. 2017-02-16 16:52:03 -05:00
README.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
WhatsNew.txt Added the environment variable SDL_LOGGING to control default log output 2024-01-27 19:30:22 -08:00

Simple DirectMedia Layer (SDL) Version 3.0

https://www.libsdl.org/

Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games.

More extensive documentation is available in the docs directory, starting with README.md. If you are migrating to SDL 3.0 from SDL 2.0, the changes are extensively documented in README-migration.md.

Enjoy!

Sam Lantinga (slouken@libsdl.org)