kc3-lang/SDL/src

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  Commit

• Hash : 6e35e421
  Author :
  Date : 2018-10-01T14:43:03
  

  Working on bug 3921 - Add some Fastpath to BlitNtoNKey and BlitNtoNKeyCopyAlpha
  
  Sylvain
  
  I did various benches. with clang 6.0.0 on linux, and ndk-r16b on android (NDK_TOOLCHAIN_VERSION=clang).
  
  - still see a x10 speed factor.
  - with duff_loops, it does not use vectorisation (but doesn't seem to be a problem).
  
  on linux my patch is already at full speed on -O2, whereas the duff_loops need -O3 (200 ms at -03, and 300ms at -02).
  
  I realized that on Android, I had a slight variation which fits best.
  both on linux with -O2 and -O3, and on android with 02/03 and armeabi-v7a/arm64.
  
  Here's the patch.
  

• Files

• SDL.c
• SDL_assert.c
• SDL_assert_c.h
• SDL_dataqueue.c
• SDL_dataqueue.h
• SDL_error.c
• SDL_error_c.h
• SDL_hints.c
• SDL_internal.h
• SDL_log.c
• atomic/
• audio/
• core/
• cpuinfo/
• dynapi/
• events/
• file/
• filesystem/
• haptic/
• hidapi/
• joystick/
• libm/
• loadso/
• main/
• power/
• render/
• sensor/
• stdlib/
• test/
• thread/
• timer/
• video/

• Properties

• 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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