Xiaohong Bao 2014-02-12 18:15:32 -07:00
commit 89d5cef757
1 changed files with 25 additions and 0 deletions

View File

@ -34,6 +34,7 @@
#include "llviewerregion.h"
#include "pipeline.h"
#include "llagentcamera.h"
#include "llmemory.h"
//static variables
U32 LLVOCacheEntry::sMinFrameRange = 0;
@ -381,6 +382,13 @@ BOOL LLVOCacheEntry::writeToFile(LLAPRFile* apr_file) const
//static
void LLVOCacheEntry::updateDebugSettings()
{
static LLFrameTimer timer;
if(timer.getElapsedTimeF32() < 1.0f) //update frequency once per second.
{
return;
}
timer.reset();
//the number of frames invisible objects stay in memory
static LLCachedControl<U32> inv_obj_time(gSavedSettings,"NonvisibleObjectsInMemoryTime");
sMinFrameRange = inv_obj_time - 1; //make 0 to be the maximum
@ -404,6 +412,23 @@ void LLVOCacheEntry::updateDebugSettings()
sRearFarRadius = llmax(rear_max_radius_frac * gAgentCamera.mDrawDistance / 100.f, 1.0f); //minimum value is 1.0m
sRearFarRadius = llmax(sRearFarRadius, (F32)min_radius); //can not be less than "SceneLoadMinRadius".
sRearFarRadius = llmin(sRearFarRadius, gAgentCamera.mDrawDistance); //can not be more than the draw distance.
//make the above parameters adaptive to memory usage
//starts to put restrictions from 750MB, apply tightest restrictions when hits 1GB
const U32 low_bound = 750 * 1024; //KB
const U32 high_bound = 1024 * 1024; //KB
LLMemory::updateMemoryInfo() ;
U32 allocated_mem = LLMemory::getAllocatedMemKB().value();
if(allocated_mem < low_bound)
{
return;
}
F32 adjust_factor = llmax(0.f, (F32)(high_bound - allocated_mem) / (high_bound - low_bound));
sRearFarRadius = llmin(adjust_factor * sRearFarRadius, 96.f); //[0.f, 96.f]
sMinFrameRange = (U32)llclamp(adjust_factor * sMinFrameRange, 10.f, 64.f); //[10, 64]
sNearRadius = llmax(adjust_factor * sNearRadius, 1.0f);
}
//static