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Bug 5437

Summary: [PATCH] Use MSVC byteswapping intrinsics for SDL_Swap16/32/64
Product: SDL Reporter: Cameron Gutman <cameron.gutman>
Component: *don't know*Assignee: Ryan C. Gordon <icculus>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: HG 2.0   
Hardware: All   
OS: Windows 10   
Attachments: Patch

Description Cameron Gutman 2021-01-02 19:33:35 UTC 
MSVC has byteswap intrinsics that generate good code on Intel and ARM platforms. Let's use these rather than the fallback C implementation on MSVC.

Tested with platform tests on x64 compiled with MSVC 2019.
Comment 1 Cameron Gutman 2021-01-02 19:34:00 UTC 
Created attachment 4629 [details]
Patch
Comment 2 Sam Lantinga 2021-01-03 18:25:04 UTC 
Patch added, thanks!
https://hg.libsdl.org/SDL/rev/2114c408176d