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split the unitsphere search in a separate kernel, m_findSeparatingAxisUnitSphereKernel, hopefully it works on Mac OSX OpenCL now.

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This commit is contained in:
Erwin Coumans
2014-01-16 14:19:43 -08:00
parent b53cc5edb8
commit f14ec7b870
6 changed files with 126 additions and 62 deletions
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33
src/Bullet3OpenCL/NarrowphaseCollision/b3ConvexHullContact.cpp
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@@ -148,6 +148,10 @@ m_unitSphereDirections(m_context,m_queue)
b3Assert(m_mprPenetrationKernel);
b3Assert(errNum==CL_SUCCESS);
m_findSeparatingAxisUnitSphereKernel = b3OpenCLUtils::compileCLKernelFromString(m_context, m_device,mprSrc, "findSeparatingAxisUnitSphereKernel",&errNum,mprProg );
b3Assert(m_findSeparatingAxisUnitSphereKernel);
b3Assert(errNum==CL_SUCCESS);
int numDirections = sizeof(unitSphere162)/sizeof(b3Vector3);
m_unitSphereDirections.resize(numDirections);
@@ -285,6 +289,8 @@ GpuSatCollision::~GpuSatCollision()
if (m_findSeparatingAxisEdgeEdgeKernel)
clReleaseKernel(m_findSeparatingAxisEdgeEdgeKernel);
if (m_findSeparatingAxisUnitSphereKernel)
clReleaseKernel(m_findSeparatingAxisUnitSphereKernel);
if (m_mprPenetrationKernel)
clReleaseKernel(m_mprPenetrationKernel);
@@ -3222,12 +3228,37 @@ void GpuSatCollision::computeConvexConvexContactsGPUSAT( b3OpenCLArray<b3Int4>*
launcher.setBuffers( bInfo, sizeof(bInfo)/sizeof(b3BufferInfoCL) );
launcher.setConst( numDirections);
launcher.setConst( nPairs );
int num = nPairs;
launcher.launch1D( num);
clFinish(m_queue);
}
{
B3_PROFILE("findSeparatingAxisUnitSphereKernel");
b3BufferInfoCL bInfo[] = {
b3BufferInfoCL( pairs->getBufferCL(), true ),
b3BufferInfoCL( bodyBuf->getBufferCL(),true),
b3BufferInfoCL( gpuCollidables.getBufferCL(),true),
b3BufferInfoCL( convexData.getBufferCL(),true),
b3BufferInfoCL( gpuVertices.getBufferCL(),true),
b3BufferInfoCL( m_unitSphereDirections.getBufferCL(),true),
b3BufferInfoCL( m_sepNormals.getBufferCL()),
b3BufferInfoCL( m_hasSeparatingNormals.getBufferCL()),
b3BufferInfoCL( m_dmins.getBufferCL())
};
b3LauncherCL launcher(m_queue, m_findSeparatingAxisUnitSphereKernel,"findSeparatingAxisUnitSphereKernel");
launcher.setBuffers( bInfo, sizeof(bInfo)/sizeof(b3BufferInfoCL) );
int numDirections = sizeof(unitSphere162)/sizeof(b3Vector3);
launcher.setConst( numDirections);
launcher.setConst( nPairs );
int num = nPairs;
launcher.launch1D( num);
clFinish(m_queue);
}
}

1
src/Bullet3OpenCL/NarrowphaseCollision/b3ConvexHullContact.h
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@@ -27,6 +27,7 @@ struct GpuSatCollision
cl_command_queue m_queue;
cl_kernel m_findSeparatingAxisKernel;
cl_kernel m_mprPenetrationKernel;
cl_kernel m_findSeparatingAxisUnitSphereKernel;
cl_kernel m_findSeparatingAxisVertexFaceKernel;

4
src/Bullet3OpenCL/NarrowphaseCollision/kernels/mpr.cl
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@@ -290,6 +290,9 @@ __kernel void findSeparatingAxisUnitSphereKernel( __global const int4* pairs,
const float4 DeltaC2 = c0 - c1;
float4 sepNormal = separatingNormals[i];
int numEdgeEdgeDirections = convexShapes[shapeIndexA].m_numUniqueEdges*convexShapes[shapeIndexB].m_numUniqueEdges;
if (numEdgeEdgeDirections>numUnitSphereDirections)
{
bool sepEE = findSeparatingAxisUnitSphere( &convexShapes[shapeIndexA], &convexShapes[shapeIndexB],posA,ornA,
posB,ornB,
DeltaC2,
@@ -302,6 +305,7 @@ __kernel void findSeparatingAxisUnitSphereKernel( __global const int4* pairs,
hasSeparatingAxis[i] = 1;
separatingNormals[i] = sepNormal;
}
}
} //if (hasSeparatingAxis[i])
}//(i<numPairs)
}

4
src/Bullet3OpenCL/NarrowphaseCollision/kernels/mprKernels.h
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@@ -1418,6 +1418,9 @@ static const char* mprKernelsCL= \
" const float4 DeltaC2 = c0 - c1;\n"
" float4 sepNormal = separatingNormals[i];\n"
" \n"
" int numEdgeEdgeDirections = convexShapes[shapeIndexA].m_numUniqueEdges*convexShapes[shapeIndexB].m_numUniqueEdges;\n"
" if (numEdgeEdgeDirections>numUnitSphereDirections)\n"
" {\n"
" bool sepEE = findSeparatingAxisUnitSphere( &convexShapes[shapeIndexA], &convexShapes[shapeIndexB],posA,ornA,\n"
" posB,ornB,\n"
" DeltaC2,\n"
@@ -1430,6 +1433,7 @@ static const char* mprKernelsCL= \
" hasSeparatingAxis[i] = 1;\n"
" separatingNormals[i] = sepNormal;\n"
" }\n"
" }\n"
" } //if (hasSeparatingAxis[i])\n"
" }//(i<numPairs)\n"
"}\n"

32
src/Bullet3OpenCL/NarrowphaseCollision/kernels/sat.cl
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@@ -1566,22 +1566,14 @@ __kernel void findSeparatingAxisEdgeEdgeKernel( __global const int4* pairs,
bool sepEE = false;
int numEdgeEdgeDirections = convexShapes[shapeIndexA].m_numUniqueEdges*convexShapes[shapeIndexB].m_numUniqueEdges;
if (numEdgeEdgeDirections<numUnitSphereDirections)
if (numEdgeEdgeDirections<=numUnitSphereDirections)
{
sepEE = findSeparatingAxisEdgeEdge( &convexShapes[shapeIndexA], &convexShapes[shapeIndexB],posA,ornA,
posB,ornB,
DeltaC2,
vertices,uniqueEdges,faces,
indices,&sepNormal,&dmin);
}
else
{
sepEE = findSeparatingAxisUnitSphere(&convexShapes[shapeIndexA], &convexShapes[shapeIndexB],posA,ornA,
posB,ornB,
DeltaC2,
vertices,unitSphereDirections,numUnitSphereDirections,
&sepNormal,&dmin);
}
if (!sepEE)
{
hasSeparatingAxis[i] = 0;
@@ -1590,6 +1582,26 @@ __kernel void findSeparatingAxisEdgeEdgeKernel( __global const int4* pairs,
hasSeparatingAxis[i] = 1;
separatingNormals[i] = sepNormal;
}
}
/*
///else case is a separate kernel, to make Mac OSX OpenCL compiler happy
else
{
sepEE = findSeparatingAxisUnitSphere(&convexShapes[shapeIndexA], &convexShapes[shapeIndexB],posA,ornA,
posB,ornB,
DeltaC2,
vertices,unitSphereDirections,numUnitSphereDirections,
&sepNormal,&dmin);
if (!sepEE)
{
hasSeparatingAxis[i] = 0;
} else
{
hasSeparatingAxis[i] = 1;
separatingNormals[i] = sepNormal;
}
}
*/
} //if (hasSeparatingAxis[i])
}//(i<numPairs)
}

32
src/Bullet3OpenCL/NarrowphaseCollision/kernels/satKernels.h
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@@ -1700,22 +1700,14 @@ static const char* satKernelsCL= \
" \n"
" bool sepEE = false;\n"
" int numEdgeEdgeDirections = convexShapes[shapeIndexA].m_numUniqueEdges*convexShapes[shapeIndexB].m_numUniqueEdges;\n"
" if (numEdgeEdgeDirections<numUnitSphereDirections)\n"
" if (numEdgeEdgeDirections<=numUnitSphereDirections)\n"
" {\n"
" sepEE = findSeparatingAxisEdgeEdge( &convexShapes[shapeIndexA], &convexShapes[shapeIndexB],posA,ornA,\n"
" posB,ornB,\n"
" DeltaC2,\n"
" vertices,uniqueEdges,faces,\n"
" indices,&sepNormal,&dmin);\n"
" }\n"
" else\n"
" {\n"
" sepEE = findSeparatingAxisUnitSphere(&convexShapes[shapeIndexA], &convexShapes[shapeIndexB],posA,ornA,\n"
" posB,ornB,\n"
" DeltaC2,\n"
" vertices,unitSphereDirections,numUnitSphereDirections,\n"
" &sepNormal,&dmin);\n"
" }\n"
" \n"
" if (!sepEE)\n"
" {\n"
" hasSeparatingAxis[i] = 0;\n"
@@ -1724,6 +1716,26 @@ static const char* satKernelsCL= \
" hasSeparatingAxis[i] = 1;\n"
" separatingNormals[i] = sepNormal;\n"
" }\n"
" }\n"
" /*\n"
" ///else case is a separate kernel, to make Mac OSX OpenCL compiler happy\n"
" else\n"
" {\n"
" sepEE = findSeparatingAxisUnitSphere(&convexShapes[shapeIndexA], &convexShapes[shapeIndexB],posA,ornA,\n"
" posB,ornB,\n"
" DeltaC2,\n"
" vertices,unitSphereDirections,numUnitSphereDirections,\n"
" &sepNormal,&dmin);\n"
" if (!sepEE)\n"
" {\n"
" hasSeparatingAxis[i] = 0;\n"
" } else\n"
" {\n"
" hasSeparatingAxis[i] = 1;\n"
" separatingNormals[i] = sepNormal;\n"
" }\n"
" }\n"
" */\n"
" } //if (hasSeparatingAxis[i])\n"
" }//(i<numPairs)\n"
"}\n"