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Added support for setting DatabasePager thread priority via OSG_DATABASE_PAGER_PRIORITY.

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This commit is contained in:
Robert Osfield
2007-08-24 14:00:44 +00:00
parent 54202aae0d
commit 056a9bc491
1 changed files with 31 additions and 2 deletions
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33
src/osgDB/DatabasePager.cpp
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@@ -24,6 +24,8 @@ static osg::ApplicationUsageProxy DatabasePager_e0(osg::ApplicationUsage::ENVIRO
static osg::ApplicationUsageProxy DatabasePager_e1(osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_MINIMUM_COMPILE_TIME_PER_FRAME <float>","minimum compile time alloted to compiling OpenGL objects per frame in database pager.");
static osg::ApplicationUsageProxy DatabasePager_e2(osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_MAXIMUM_OBJECTS_TO_COMPILE_PER_FRAME <int>","maximum number of OpenGL objects to compile per frame in database pager.");
static osg::ApplicationUsageProxy DatabasePager_e3(osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_DATABASE_PAGER_DRAWABLE <mode>","Set the drawable policy for setting of loaded drawable to specified type. mode can be one of DoNotModify, DisplayList, VBO or VertexArrays>.");
static osg::ApplicationUsageProxy DatabasePager_e4(osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_DATABASE_PAGER_PRIORITY <mode>", "Set the thread priority to DEFAULT, MIN, LOW, NOMINAL, HIGH or MAX.");
DatabasePager::DatabasePager()
{
//osg::notify(osg::INFO)<<"Constructing DatabasePager()"<<std::endl;
@@ -38,7 +40,34 @@ DatabasePager::DatabasePager()
_frameNumber = 0;
_databasePagerThreadBlock = new osg::RefBlock;
setSchedulePriority(THREAD_PRIORITY_MIN);
const char* str = getenv("OSG_DATABASE_PAGER_PRIORITY");
if (str)
{
if (strcmp(str,"DEFAULT")==0)
{
setSchedulePriority(OpenThreads::Thread::THREAD_PRIORITY_DEFAULT);
}
else if (strcmp(str,"MIN")==0)
{
setSchedulePriority(OpenThreads::Thread::THREAD_PRIORITY_MIN);
}
else if (strcmp(str,"LOW")==0)
{
setSchedulePriority(OpenThreads::Thread::THREAD_PRIORITY_LOW);
}
else if (strcmp(str,"NOMINAL")==0)
{
setSchedulePriority(OpenThreads::Thread::THREAD_PRIORITY_NOMINAL);
}
else if (strcmp(str,"HIGH")==0)
{
setSchedulePriority(OpenThreads::Thread::THREAD_PRIORITY_HIGH);
}
else if (strcmp(str,"MAX")==0)
{
setSchedulePriority(OpenThreads::Thread::THREAD_PRIORITY_MAX);
}
}
#if __APPLE__
// OSX really doesn't like compiling display lists, and performs poorly when they are used,
@@ -48,7 +77,7 @@ DatabasePager::DatabasePager()
_drawablePolicy = DO_NOT_MODIFY_DRAWABLE_SETTINGS;
#endif
const char* str = getenv("OSG_DATABASE_PAGER_GEOMETRY");
str = getenv("OSG_DATABASE_PAGER_GEOMETRY");
if (!str) str = getenv("OSG_DATABASE_PAGER_DRAWABLE");
if (str)
{