From e0368d31a5b3a593d9650de688fdaf77e6975103 Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brechtvanlommel@pandora.be>
Date: Tue, 22 Jun 2010 15:09:41 +0000
Subject: Enabled openmp multithreading for multires/subsurf again, but only if
 there are >= 1 million faces estimated in the resulting mesh.

(merge from render25 branch)
---
 source/blender/blenkernel/intern/CCGSubSurf.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

(limited to 'source/blender/blenkernel/intern/CCGSubSurf.c')

diff --git a/source/blender/blenkernel/intern/CCGSubSurf.c b/source/blender/blenkernel/intern/CCGSubSurf.c
index 8fad398f00a..bbd68fb797b 100644
--- a/source/blender/blenkernel/intern/CCGSubSurf.c
+++ b/source/blender/blenkernel/intern/CCGSubSurf.c
@@ -1159,7 +1159,7 @@ static void ccgSubSurf__calcVertNormals(CCGSubSurf *ss,
 	int normalDataOffset = ss->normalDataOffset;
 	int vertDataSize = ss->meshIFC.vertDataSize;
 
-	//#pragma omp parallel for private(ptrIdx) schedule(static)
+	#pragma omp parallel for private(ptrIdx) if(numEffectedF*edgeSize*edgeSize*4 >= CCG_OMP_LIMIT)
 	for (ptrIdx=0; ptrIdx<numEffectedF; ptrIdx++) {
 		CCGFace *f = (CCGFace*) effectedF[ptrIdx];
 		int S, x, y;
@@ -1285,7 +1285,7 @@ static void ccgSubSurf__calcVertNormals(CCGSubSurf *ss,
 		}
 	}
 
-	//#pragma omp parallel for private(ptrIdx) schedule(static)
+	#pragma omp parallel for private(ptrIdx) if(numEffectedF*edgeSize*edgeSize*4 >= CCG_OMP_LIMIT)
 	for (ptrIdx=0; ptrIdx<numEffectedF; ptrIdx++) {
 		CCGFace *f = (CCGFace*) effectedF[ptrIdx];
 		int S, x, y;
@@ -1351,7 +1351,7 @@ static void ccgSubSurf__calcSubdivLevel(CCGSubSurf *ss,
 	int vertDataSize = ss->meshIFC.vertDataSize;
 	void *q = ss->q, *r = ss->r;
 
-	//#pragma omp parallel for private(ptrIdx) schedule(static)
+	#pragma omp parallel for private(ptrIdx) if(numEffectedF*edgeSize*edgeSize*4 >= CCG_OMP_LIMIT)
 	for (ptrIdx=0; ptrIdx<numEffectedF; ptrIdx++) {
 		CCGFace *f = (CCGFace*) effectedF[ptrIdx];
 		int S, x, y;
@@ -1685,17 +1685,17 @@ static void ccgSubSurf__calcSubdivLevel(CCGSubSurf *ss,
 		}
 	}
 
-	//#pragma omp parallel private(ptrIdx)
+	#pragma omp parallel private(ptrIdx) if(numEffectedF*edgeSize*edgeSize*4 >= CCG_OMP_LIMIT)
 	{
 		void *q, *r;
 
-		//#pragma omp critical
+		#pragma omp critical
 		{
 			q = MEM_mallocN(ss->meshIFC.vertDataSize, "CCGSubsurf q");
 			r = MEM_mallocN(ss->meshIFC.vertDataSize, "CCGSubsurf r");
 		}
 
-		//#pragma omp for schedule(static)
+		#pragma omp for schedule(static)
 		for (ptrIdx=0; ptrIdx<numEffectedF; ptrIdx++) {
 			CCGFace *f = (CCGFace*) effectedF[ptrIdx];
 			int S, x, y;
@@ -1779,7 +1779,7 @@ static void ccgSubSurf__calcSubdivLevel(CCGSubSurf *ss,
 			}
 		}
 
-		//#pragma omp critical
+		#pragma omp critical
 		{
 			MEM_freeN(q);
 			MEM_freeN(r);
@@ -1791,14 +1791,14 @@ static void ccgSubSurf__calcSubdivLevel(CCGSubSurf *ss,
 	gridSize = 1 + (1<<((nextLvl)-1));
 	cornerIdx = gridSize-1;
 
-	//#pragma omp parallel for private(i) schedule(static)
+	#pragma omp parallel for private(i) if(numEffectedF*edgeSize*edgeSize*4 >= CCG_OMP_LIMIT)
 	for (i=0; i<numEffectedE; i++) {
 		CCGEdge *e = effectedE[i];
 		VertDataCopy(EDGE_getCo(e, nextLvl, 0), VERT_getCo(e->v0, nextLvl));
 		VertDataCopy(EDGE_getCo(e, nextLvl, edgeSize-1), VERT_getCo(e->v1, nextLvl));
 	}
 
-	//#pragma omp parallel for private(i) schedule(static)
+	#pragma omp parallel for private(i) if(numEffectedF*edgeSize*edgeSize*4 >= CCG_OMP_LIMIT)
 	for (i=0; i<numEffectedF; i++) {
 		CCGFace *f = effectedF[i];
 		int S, x;
-- 
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