livie
/
phoenix-firestorm
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

SL-18154 Followup -- Use Henri's xxHash integration to speed up UI Vertex Buffer cache

meow-7.2.2
Dave Parks 2023-01-31 16:45:39 -06:00
parent 8e0e61ed66
commit 280c92b7de
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
indra/llrender/llrender.cpp
View File

@ -35,7 +35,7 @@
#include "llrendertarget.h"
#include "lltexture.h"
#include "llshadermgr.h"
#include "llmd5.h"
#include "hbxxh.h"
#if LL_WINDOWS
extern void APIENTRY gl_debug_callback(GLenum source,
@ -79,7 +79,7 @@ struct LLVBCache
std::chrono::steady_clock::time_point touched;
};
static std::unordered_map<std::size_t, LLVBCache> sVBCache;
static std::unordered_map<U64, LLVBCache> sVBCache;
static const GLenum sGLTextureType[] =
{
@ -1640,7 +1640,7 @@ void LLRender::flush()
if (mBuffer)
{
LLMD5 hash;
HBXXH64 hash;
U32 attribute_mask = LLGLSLShader::sCurBoundShaderPtr->mAttributeMask;
{
@ -1660,8 +1660,8 @@ void LLRender::flush()
hash.finalize();
}
size_t vhash[2];
hash.raw_digest((unsigned char*) vhash);
U64 vhash = hash.digest();
// check the VB cache before making a new vertex buffer
// This is a giant hack to deal with (mostly) our terrible UI rendering code
@ -1672,7 +1672,7 @@ void LLRender::flush()
// To leverage this, we maintain a running hash of the vertex stream being
// built up before a flush, and then check that hash against a VB
// cache just before creating a vertex buffer in VRAM
std::unordered_map<std::size_t, LLVBCache>::iterator cache = sVBCache.find(vhash[0]);
std::unordered_map<U64, LLVBCache>::iterator cache = sVBCache.find(vhash);
LLPointer<LLVertexBuffer> vb;
@ -1705,7 +1705,7 @@ void LLRender::flush()
vb->unbind();
sVBCache[vhash[0]] = { vb , std::chrono::steady_clock::now() };
sVBCache[vhash] = { vb , std::chrono::steady_clock::now() };
static U32 miss_count = 0;
miss_count++;