kc3-lang/SDL

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• Hash : 111c3add
  Author :
  Date : 2022-04-10T13:23:51
  

  audio: Resampler optimizations.
  
  - Calculate `j * RESAMPLER_SAMPLES_PER_ZERO_CROSSING` once per loop
    iteration since we use it multiple times.
  - Do the left-wing loop in two sections: while `srcframe < 0` and then
    the remaining calculations when `srcframe >= 0`. This bubbles a conditional
    out of every iteration of a tight loop, giving us a boost. We could
    _probably_ do this to the right-wing loop too, but it's less straightforward
    there.
  - The real win: Use floats instead of doubles. This almost doubles the speed
    of the entire function on Intel CPUs, and for embedded things without
    hardware-level support for doubles, the speedup is enormous. This in
    theory might reduce audio quality, though, and I had to put a check in
    place to avoid a division-by-zero that we avoided at higher precision, but
    this is likely to be worth keeping for at least the Sony PSP and other
    smaller platforms, if not everyone.
  

• Files

• .github/
• .gitignore
• Android.mk
• BUGS.txt
• CMakeLists.txt
• CREDITS.txt
• INSTALL.txt
• LICENSE.txt
• Makefile.in
• Makefile.minimal
• Makefile.os2
• Makefile.pandora
• README-SDL.txt
• README.md
• SDL2.spec.in
• SDL2Config.cmake
• TODO.txt
• VisualC-WinRT/
• VisualC/
• WhatsNew.txt
• Xcode-iOS/
• Xcode/
• acinclude/
• android-project-ant/
• android-project/
• autogen.sh
• build-scripts/
• cmake/
• cmake_uninstall.cmake.in
• configure
• configure.ac
• docs/
• include/
• sdl2-config-version.cmake.in
• sdl2-config.cmake.in
• sdl2-config.in
• sdl2.m4
• sdl2.pc.in
• src/
• test/
• visualtest/
• wayland-protocols/

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• Git HTTP	https://git.kmx.io/kc3-lang/SDL.git
  Git SSH	git@git.kmx.io:kc3-lang/SDL.git
  Public access ?	public
  Description	Fork of https://github.com/libsdl-org/SDL
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