From bc3a7bdce3c29cccca836259e1f50fe830a39ae7 Mon Sep 17 00:00:00 2001 From: "memberTwo.mb2" Date: Thu, 4 Dec 2008 22:55:17 +0000 Subject: Better tlut hash for fixing MPs font. Didn't notice any slowdown for now. git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1402 8ced0084-cf51-0410-be5f-012b33b47a6e --- Source/Core/VideoCommon/Src/TextureDecoder.cpp | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Source/Core/VideoCommon/Src/TextureDecoder.cpp') diff --git a/Source/Core/VideoCommon/Src/TextureDecoder.cpp b/Source/Core/VideoCommon/Src/TextureDecoder.cpp index a1654a72ca..9f2b7c00bd 100644 --- a/Source/Core/VideoCommon/Src/TextureDecoder.cpp +++ b/Source/Core/VideoCommon/Src/TextureDecoder.cpp @@ -62,6 +62,15 @@ int TexDecoder_GetTextureSizeInBytes(int width, int height, int format) return (width * height * TexDecoder_GetTexelSizeInNibbles(format)) / 2; } +u32 TexDecoder_GetTlutHash(const u16 *src, int len) +{ + u32 hash = 0xbeefbabe; + for (int i = 0; i < len / 2; i += 2) { + hash = _rotl(hash, 17) ^ ((u32 *)src)[i]; + } + return hash; +} + u32 TexDecoder_GetSafeTextureHash(const u8 *src, int width, int height, int texformat, u32 seed) { int sz = TexDecoder_GetTextureSizeInBytes(width, height, texformat); -- cgit v1.2.3