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-rw-r--r--indra/newview/llspatialpartition.cpp26
1 files changed, 26 insertions, 0 deletions
diff --git a/indra/newview/llspatialpartition.cpp b/indra/newview/llspatialpartition.cpp
index 3e16ccf3da..fb107a302a 100644
--- a/indra/newview/llspatialpartition.cpp
+++ b/indra/newview/llspatialpartition.cpp
@@ -28,6 +28,10 @@
#include "llspatialpartition.h"
+#include "llappviewer.h"
+#include "lltexturecache.h"
+#include "lltexturefetch.h"
+#include "llimageworker.h"
#include "llviewerwindow.h"
#include "llviewerobjectlist.h"
#include "llvovolume.h"
@@ -1221,6 +1225,7 @@ LLSpatialGroup::LLSpatialGroup(OctreeNode* node, LLSpatialPartition* part) :
for (U32 i = 0; i < LLViewerCamera::NUM_CAMERAS; i++)
{
mOcclusionQuery[i] = 0;
+ mOcclusionIssued[i] = 0;
mOcclusionState[i] = parent ? SG_STATE_INHERIT_MASK & parent->mOcclusionState[i] : 0;
mVisible[i] = 0;
}
@@ -1543,6 +1548,8 @@ BOOL LLSpatialGroup::rebound()
}
static LLFastTimer::DeclareTimer FTM_OCCLUSION_READBACK("Readback Occlusion");
+static LLFastTimer::DeclareTimer FTM_OCCLUSION_WAIT("Wait");
+
void LLSpatialGroup::checkOcclusion()
{
if (LLPipeline::sUseOcclusion > 1)
@@ -1560,6 +1567,22 @@ void LLSpatialGroup::checkOcclusion()
if (mOcclusionQuery[LLViewerCamera::sCurCameraID])
{
glGetQueryObjectuivARB(mOcclusionQuery[LLViewerCamera::sCurCameraID], GL_QUERY_RESULT_AVAILABLE_ARB, &available);
+
+ if (mOcclusionIssued[LLViewerCamera::sCurCameraID] < gFrameCount)
+ { //query was issued last frame, wait until it's available
+ S32 max_loop = 1024;
+ LLFastTimer t(FTM_OCCLUSION_WAIT);
+ while (!available && max_loop-- > 0)
+ {
+ F32 max_time = llmin(gFrameIntervalSeconds*10.f, 1.f);
+ //do some usefu work while we wait
+ LLAppViewer::getTextureCache()->update(max_time); // unpauses the texture cache thread
+ LLAppViewer::getImageDecodeThread()->update(max_time); // unpauses the image thread
+ LLAppViewer::getTextureFetch()->update(max_time); // unpauses the texture fetch thread
+
+ glGetQueryObjectuivARB(mOcclusionQuery[LLViewerCamera::sCurCameraID], GL_QUERY_RESULT_AVAILABLE_ARB, &available);
+ }
+ }
}
else
{
@@ -1679,6 +1702,9 @@ void LLSpatialGroup::doOcclusion(LLCamera* camera)
{
LLFastTimer t(FTM_PUSH_OCCLUSION_VERTS);
+ //store which frame this query was issued on
+ mOcclusionIssued[LLViewerCamera::sCurCameraID] = gFrameCount;
+
{
LLFastTimer t(FTM_OCCLUSION_BEGIN_QUERY);
glBeginQueryARB(mode, mOcclusionQuery[LLViewerCamera::sCurCameraID]);