Merge pull request #1505 from Azaezel/OcclusionQueryFixGL_Clean

courtessy @Lopuska: opengl occlusion query fix

Engine/source/lighting/advanced/advancedLightBinManager.cpp

@@ -318,6 +318,8 @@ void AdvancedLightBinManager::render( SceneRenderState *state )
       const U32 numPrims = curEntry.numPrims;
       const U32 numVerts = curEntry.vertBuffer->mNumVerts;
 
+      ShadowMapParams *lsp = curLightInfo->getExtended<ShadowMapParams>();
+
       // Skip lights which won't affect the scene.
       if ( !curLightMat || curLightInfo->getBrightness() <= 0.001f )
          continue;
@@ -329,15 +331,12 @@ void AdvancedLightBinManager::render( SceneRenderState *state )
       mShadowManager->setLightShadowMap( curEntry.shadowMap );
       mShadowManager->setLightDynamicShadowMap( curEntry.dynamicShadowMap );
 
-      // Let the shadow know we're about to render from it.
-      if ( curEntry.shadowMap )
-         curEntry.shadowMap->preLightRender();
-      if ( curEntry.dynamicShadowMap ) curEntry.dynamicShadowMap->preLightRender();
-
       // Set geometry
       GFX->setVertexBuffer( curEntry.vertBuffer );
       GFX->setPrimitiveBuffer( curEntry.primBuffer );
 
+      lsp->getOcclusionQuery()->begin();
+
       // Render the material passes
       while( curLightMat->matInstance->setupPass( state, sgData ) )
       {
@@ -352,10 +351,7 @@ void AdvancedLightBinManager::render( SceneRenderState *state )
             GFX->drawPrimitive(GFXTriangleList, 0, numPrims);
       }
 
-      // Tell it we're done rendering.
+      lsp->getOcclusionQuery()->end();
-      if ( curEntry.shadowMap )
-         curEntry.shadowMap->postLightRender();
-      if ( curEntry.dynamicShadowMap ) curEntry.dynamicShadowMap->postLightRender();
    }
 
    // Set NULL for active shadow map (so nothing gets confused)

Engine/source/lighting/shadowMap/lightShadowMap.cpp

@@ -89,8 +89,6 @@ LightShadowMap::LightShadowMap( LightInfo *light )
       mLastUpdate( 0 ),
       mLastCull( 0 ),
       mIsViewDependent( false ),
-      mVizQuery( NULL ),
-      mWasOccluded( false ),
       mLastScreenSize( 0.0f ),
       mLastPriority( 0.0f ),
       mIsDynamic( false )
@@ -98,9 +96,7 @@ LightShadowMap::LightShadowMap( LightInfo *light )
    GFXTextureManager::addEventDelegate( this, &LightShadowMap::_onTextureEvent );
 
    mTarget = GFX->allocRenderToTextureTarget();
-   mVizQuery = GFX->createOcclusionQuery();
+   smShadowMaps.push_back( this );
-
-   smShadowMaps.push_back(this);
    mStaticRefreshTimer = PlatformTimer::create();
    mDynamicRefreshTimer = PlatformTimer::create();
 }
@@ -108,7 +104,8 @@ LightShadowMap::LightShadowMap( LightInfo *light )
 LightShadowMap::~LightShadowMap()
 {
    mTarget = NULL;
-   SAFE_DELETE( mVizQuery );   
+   SAFE_DELETE(mStaticRefreshTimer);
+   SAFE_DELETE(mDynamicRefreshTimer);
 
    releaseTextures();
 
@@ -334,23 +331,6 @@ void LightShadowMap::render(  RenderPassManager* renderPass,
    mLastUpdate = Sim::getCurrentTime();
 }
 
-void LightShadowMap::preLightRender()
-{
-   PROFILE_SCOPE( LightShadowMap_prepLightRender );
-
-   if ( mVizQuery )
-   {
-      mWasOccluded = mVizQuery->getStatus( true ) == GFXOcclusionQuery::Occluded;
-      mVizQuery->begin();
-   }
-}
-
-void LightShadowMap::postLightRender()
-{
-   if ( mVizQuery )
-      mVizQuery->end();
-}
-
 BaseMatInstance* LightShadowMap::getShadowMaterial( BaseMatInstance *inMat ) const
 {
    // See if we have an existing material hook.
@@ -610,11 +590,14 @@ ShadowMapParams::ShadowMapParams( LightInfo *light )
    shadowSoftness = 0.15f;
    fadeStartDist = 0.0f;
    lastSplitTerrainOnly = false;
+   mQuery = GFX->createOcclusionQuery();
+
    _validate();
 }
 
 ShadowMapParams::~ShadowMapParams()
 {
+   SAFE_DELETE( mQuery );
    SAFE_DELETE( mShadowMap );
    SAFE_DELETE( mDynamicShadowMap );
 }

Engine/source/lighting/shadowMap/lightShadowMap.h

@@ -47,6 +47,9 @@
 #ifndef _GFXSHADER_H_
 #include "gfx/gfxShader.h"
 #endif
+#ifndef _GFXOCCLUSIONQUERY_H_
+#include "gfx/gfxOcclusionQuery.h"
+#endif
 #ifndef _PLATFORM_PLATFORMTIMER_H_
 #include "platform/platformTimer.h"
 #endif
@@ -61,7 +64,6 @@ struct SceneData;
 class GFXShaderConstBuffer;
 class GFXShaderConstHandle;
 class GFXShader;
-class GFXOcclusionQuery;
 class LightManager;
 class RenderPassManager;
 
@@ -169,12 +171,6 @@ public:
 
    bool isViewDependent() const { return mIsViewDependent; }
 
-   bool wasOccluded() const { return mWasOccluded; }
-
-   void preLightRender();
-
-   void postLightRender();
-
    void updatePriority( const SceneRenderState *state, U32 currTimeMs );
 
    F32 getLastScreenSize() const { return mLastScreenSize; }
@@ -257,15 +253,6 @@ protected:
    /// The time this shadow was last culled and prioritized.
    U32 mLastCull;
 
-   /// The shadow occlusion query used when the light is
-   /// rendered to determine if any pixel of it is visible.
-   GFXOcclusionQuery *mVizQuery;
-
-   /// If true the light was occluded by geometry the
-   /// last frame it was updated.
-   //the last frame.
-   bool mWasOccluded;
-
    F32 mLastScreenSize;
 
    F32 mLastPriority;
@@ -325,6 +312,8 @@ public:
 
    bool hasCookieTex() const { return cookie.isNotEmpty(); }
 
+   GFXOcclusionQuery* getOcclusionQuery() const { return mQuery; }
+
    GFXTextureObject* getCookieTex();
 
    GFXCubemap* getCookieCubeTex();
@@ -339,6 +328,7 @@ protected:
    ///
    LightShadowMap *mShadowMap;
    LightShadowMap *mDynamicShadowMap;
+   GFXOcclusionQuery* mQuery;
 
    LightInfo *mLight;
 

Engine/source/lighting/shadowMap/shadowMapPass.cpp

@@ -174,12 +174,12 @@ void ShadowMapPass::render(   SceneManager *sceneManager,
          continue;
       
       // --- Static Shadow Map ---
-	  LightShadowMap *lsm = params->getOrCreateShadowMap();
+      LightShadowMap *lsm = params->getOrCreateShadowMap();
-     LightShadowMap *dlsm = params->getOrCreateShadowMap(true);
+      LightShadowMap *dlsm = params->getOrCreateShadowMap(true);
 
       // First check the visiblity query... if it wasn't 
       // visible skip it.
-     if (lsm->wasOccluded() || dlsm->wasOccluded())
+      if(params->getOcclusionQuery()->getStatus(true) == GFXOcclusionQuery::Occluded)
          continue;
 
       // Any shadow that is visible is counted as being 
@@ -187,9 +187,9 @@ void ShadowMapPass::render(   SceneManager *sceneManager,
       ++smActiveShadowMaps;
 
       // Do a priority update for this shadow.
-	  lsm->updatePriority(diffuseState, currTime);
+      lsm->updatePriority(diffuseState, currTime);
 
-	  shadowMaps.push_back(lsm);
+      shadowMaps.push_back(lsm);
 
       // --- Dynamic Shadow Map ---
 
@@ -198,7 +198,7 @@ void ShadowMapPass::render(   SceneManager *sceneManager,
       ++smActiveShadowMaps;
 
       // Do a priority update for this shadow.
-	  dlsm->updatePriority(diffuseState, currTime);
+      dlsm->updatePriority(diffuseState, currTime);
 
       shadowMaps.push_back( dlsm );
    }