void CLPhysicsDemo::stepSimulation()
{
int sz = sizeof(ConvexPolyhedronCL2);
int sz1 = sizeof(ConvexPolyhedronCL);
btAssert(sz==sz1);
int b1 = sizeof(Body2);
int b2 = sizeof(RigidBodyBase::Body);
btAssert(b1==b2);
BT_PROFILE("simulationLoop");
cl_int ciErrNum = CL_SUCCESS;
if(m_data->m_useInterop)
{
#ifndef __APPLE__
clBuffer = g_interopBuffer->getCLBUffer();
BT_PROFILE("clEnqueueAcquireGLObjects");
{
BT_PROFILE("clEnqueueAcquireGLObjects");
ciErrNum = clEnqueueAcquireGLObjects(g_cqCommandQue, 1, &clBuffer, 0, 0, NULL);
clFinish(g_cqCommandQue);
}
#else
assert(0);
#endif
} else
{
glBindBuffer(GL_ARRAY_BUFFER, cube_vbo);
glFlush();
BT_PROFILE("glMapBuffer and clEnqueueWriteBuffer");
blocking= CL_TRUE;
hostPtr= (char*)glMapBuffer( GL_ARRAY_BUFFER,GL_READ_WRITE);//GL_WRITE_ONLY
if (!clBuffer)
{
clBuffer = clCreateBuffer(g_cxMainContext, CL_MEM_READ_WRITE, VBOsize, 0, &ciErrNum);
}
clFinish(g_cqCommandQue);
oclCHECKERROR(ciErrNum, CL_SUCCESS);
ciErrNum = clEnqueueWriteBuffer ( g_cqCommandQue,
clBuffer,
blocking,
0,
VBOsize,
hostPtr,0,0,0
);
clFinish(g_cqCommandQue);
}
oclCHECKERROR(ciErrNum, CL_SUCCESS);
if (1 && m_numPhysicsInstances)
{
gFpIO.m_numObjects = m_numPhysicsInstances;
gFpIO.m_positionOffset = SHAPE_VERTEX_BUFFER_SIZE/4;
gFpIO.m_clObjectsBuffer = clBuffer;
if (useSapGpuBroadphase)
{
gFpIO.m_dAABB = m_data->m_BroadphaseSap->getAabbBuffer();
} else
{
gFpIO.m_dAABB = m_data->m_BroadphaseGrid->getAabbBuffer();
}
gFpIO.m_dlocalShapeAABB = (cl_mem)m_data->m_localShapeAABBGPU->getBufferCL();
gFpIO.m_numOverlap = 0;
{
BT_PROFILE("setupGpuAabbs");
setupGpuAabbsFull(gFpIO,narrowphaseAndSolver->getBodiesGpu(), narrowphaseAndSolver->getCollidablesGpu() );
// setupGpuAabbsSimple(gFpIO);
}
{
}
if (1)
{
BT_PROFILE("calculateOverlappingPairs");
if (useSapGpuBroadphase)
{
m_data->m_BroadphaseSap->calculateOverlappingPairs();
gFpIO.m_dAllOverlappingPairs = m_data->m_BroadphaseSap->getOverlappingPairBuffer();
gFpIO.m_numOverlap = m_data->m_BroadphaseSap->getNumOverlap();
}
else
{
m_data->m_BroadphaseGrid->calculateOverlappingPairs();
gFpIO.m_dAllOverlappingPairs = m_data->m_BroadphaseGrid->getOverlappingPairBuffer();
gFpIO.m_numOverlap = m_data->m_BroadphaseGrid->getNumOverlap();
}
}
//printf("gFpIO.m_numOverlap = %d\n",gFpIO.m_numOverlap );
if (gFpIO.m_numOverlap>=0 && gFpIO.m_numOverlap<MAX_BROADPHASE_COLLISION_CL)
{
colorPairsOpenCL(gFpIO);
if (runOpenCLKernels)
{
{
//BT_PROFILE("setupBodies");
if (narrowphaseAndSolver)
setupBodies(gFpIO, m_data->m_linVelBuf->getBufferCL(), m_data->m_angVelBuf->getBufferCL(), narrowphaseAndSolver->getBodiesGpu(), narrowphaseAndSolver->getBodyInertiasGpu());
}
{
BT_PROFILE("computeContactsAndSolver");
if (narrowphaseAndSolver)
narrowphaseAndSolver->computeContactsAndSolver(gFpIO.m_dAllOverlappingPairs,gFpIO.m_numOverlap, gFpIO.m_dAABB,gFpIO.m_numObjects);
}
{
BT_PROFILE("copyBodyVelocities");
if (narrowphaseAndSolver)
copyBodyVelocities(gFpIO, m_data->m_linVelBuf->getBufferCL(), m_data->m_angVelBuf->getBufferCL(), narrowphaseAndSolver->getBodiesGpu(), narrowphaseAndSolver->getBodyInertiasGpu());
}
}
} else
{
printf("error, gFpIO.m_numOverlap = %d\n",gFpIO.m_numOverlap);
btAssert(0);
}
{
BT_PROFILE("integrateTransforms");
if (runOpenCLKernels)
{
bool integrateOnGpu = true;
if (integrateOnGpu)
{
int numObjects = m_numPhysicsInstances;
int offset = SHAPE_VERTEX_BUFFER_SIZE/4;
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 0, sizeof(int), &offset);
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 1, sizeof(int), &numObjects);
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 2, sizeof(cl_mem), (void*)&clBuffer );
cl_mem lv = m_data->m_linVelBuf->getBufferCL();
cl_mem av = m_data->m_angVelBuf->getBufferCL();
cl_mem btimes = m_data->m_bodyTimes->getBufferCL();
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 3, sizeof(cl_mem), (void*)&lv);
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 4, sizeof(cl_mem), (void*)&av);
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 5, sizeof(cl_mem), (void*)&btimes);
size_t workGroupSize = 64;
size_t numWorkItems = workGroupSize*((m_numPhysicsInstances + (workGroupSize)) / workGroupSize);
if (workGroupSize>numWorkItems)
workGroupSize=numWorkItems;
ciErrNum = clEnqueueNDRangeKernel(g_cqCommandQue, g_integrateTransformsKernel, 1, NULL, &numWorkItems, &workGroupSize,0 ,0 ,0);
oclCHECKERROR(ciErrNum, CL_SUCCESS);
} else
{
//debug velocity
btAlignedObjectArray<btVector3> linvel;
m_data->m_linVelBuf->copyToHost(linvel);
for (int i=0;i<linvel.size();i++)
{
btAssert(_finite(linvel[i].x()));
}
btAssert(0);
}
}
}
}
if(m_data->m_useInterop)
{
#ifndef __APPLE__
BT_PROFILE("clEnqueueReleaseGLObjects");
ciErrNum = clEnqueueReleaseGLObjects(g_cqCommandQue, 1, &clBuffer, 0, 0, 0);
clFinish(g_cqCommandQue);
#endif
}
else
{
BT_PROFILE("clEnqueueReadBuffer clReleaseMemObject and glUnmapBuffer");
ciErrNum = clEnqueueReadBuffer ( g_cqCommandQue,
clBuffer,
blocking,
0,
VBOsize,
hostPtr,0,0,0);
//clReleaseMemObject(clBuffer);
clFinish(g_cqCommandQue);
glUnmapBuffer( GL_ARRAY_BUFFER);
glFlush();
}
oclCHECKERROR(ciErrNum, CL_SUCCESS);
if (runOpenCLKernels)
{
BT_PROFILE("clFinish");
clFinish(g_cqCommandQue);
}
}
void CLPhysicsDemo::stepSimulation()
{
BT_PROFILE("simulationLoop");
{
BT_PROFILE("glFinish");
glFinish();
}
cl_int ciErrNum = CL_SUCCESS;
if(m_data->m_useInterop)
{
clBuffer = g_interopBuffer->getCLBUffer();
BT_PROFILE("clEnqueueAcquireGLObjects");
ciErrNum = clEnqueueAcquireGLObjects(g_cqCommandQue, 1, &clBuffer, 0, 0, NULL);
adl::DeviceUtils::waitForCompletion( g_deviceCL );
} else
{
glBindBuffer(GL_ARRAY_BUFFER, cube_vbo);
glFlush();
BT_PROFILE("glMapBuffer and clEnqueueWriteBuffer");
blocking= CL_TRUE;
hostPtr= (char*)glMapBuffer( GL_ARRAY_BUFFER,GL_READ_WRITE);//GL_WRITE_ONLY
if (!clBuffer)
{
clBuffer = clCreateBuffer(g_cxMainContext, CL_MEM_READ_WRITE, VBOsize, 0, &ciErrNum);
}
adl::DeviceUtils::waitForCompletion( g_deviceCL );
oclCHECKERROR(ciErrNum, CL_SUCCESS);
ciErrNum = clEnqueueWriteBuffer ( g_cqCommandQue,
clBuffer,
blocking,
0,
VBOsize,
hostPtr,0,0,0
);
adl::DeviceUtils::waitForCompletion( g_deviceCL );
}
oclCHECKERROR(ciErrNum, CL_SUCCESS);
if (runOpenCLKernels && m_numPhysicsInstances)
{
gFpIO.m_numObjects = m_numPhysicsInstances;
gFpIO.m_positionOffset = SHAPE_VERTEX_BUFFER_SIZE/4;
gFpIO.m_clObjectsBuffer = clBuffer;
gFpIO.m_dAABB = m_data->m_Broadphase->m_dAABB;
gFpIO.m_dlocalShapeAABB = (cl_mem)m_data->m_localShapeAABB->m_ptr;
gFpIO.m_numOverlap = 0;
{
BT_PROFILE("setupGpuAabbs");
setupGpuAabbsFull(gFpIO,narrowphaseAndSolver->getBodiesGpu() );
}
if (1)
{
BT_PROFILE("calculateOverlappingPairs");
m_data->m_Broadphase->calculateOverlappingPairs(0, m_numPhysicsInstances);
gFpIO.m_dAllOverlappingPairs = m_data->m_Broadphase->m_dAllOverlappingPairs;
gFpIO.m_numOverlap = m_data->m_Broadphase->m_numPrefixSum;
}
//printf("gFpIO.m_numOverlap = %d\n",gFpIO.m_numOverlap );
if (gFpIO.m_numOverlap>=0 && gFpIO.m_numOverlap<MAX_BROADPHASE_COLLISION_CL)
{
colorPairsOpenCL(gFpIO);
if (1)
{
{
//BT_PROFILE("setupBodies");
if (narrowphaseAndSolver)
setupBodies(gFpIO, gLinVelMem, gAngVelMem, narrowphaseAndSolver->getBodiesGpu(), narrowphaseAndSolver->getBodyInertiasGpu());
}
if (gFpIO.m_numOverlap)
{
BT_PROFILE("computeContactsAndSolver");
if (narrowphaseAndSolver)
narrowphaseAndSolver->computeContactsAndSolver(gFpIO.m_dAllOverlappingPairs,gFpIO.m_numOverlap);
}
{
BT_PROFILE("copyBodyVelocities");
if (narrowphaseAndSolver)
copyBodyVelocities(gFpIO, gLinVelMem, gAngVelMem, narrowphaseAndSolver->getBodiesGpu(), narrowphaseAndSolver->getBodyInertiasGpu());
}
}
} else
{
printf("error, gFpIO.m_numOverlap = %d\n",gFpIO.m_numOverlap);
btAssert(0);
}
{
BT_PROFILE("integrateTransforms");
if (runOpenCLKernels)
{
int numObjects = m_numPhysicsInstances;
int offset = SHAPE_VERTEX_BUFFER_SIZE/4;
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 0, sizeof(int), &offset);
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 1, sizeof(int), &numObjects);
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 2, sizeof(cl_mem), (void*)&clBuffer );
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 3, sizeof(cl_mem), (void*)&gLinVelMem);
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 4, sizeof(cl_mem), (void*)&gAngVelMem);
ciErrNum = clSetKernelArg(g_integrateTransformsKernel, 5, sizeof(cl_mem), (void*)&gBodyTimes);
size_t workGroupSize = 64;
size_t numWorkItems = workGroupSize*((m_numPhysicsInstances + (workGroupSize)) / workGroupSize);
if (workGroupSize>numWorkItems)
workGroupSize=numWorkItems;
ciErrNum = clEnqueueNDRangeKernel(g_cqCommandQue, g_integrateTransformsKernel, 1, NULL, &numWorkItems, &workGroupSize,0 ,0 ,0);
oclCHECKERROR(ciErrNum, CL_SUCCESS);
}
}
}
if(m_data->m_useInterop)
{
BT_PROFILE("clEnqueueReleaseGLObjects");
ciErrNum = clEnqueueReleaseGLObjects(g_cqCommandQue, 1, &clBuffer, 0, 0, 0);
adl::DeviceUtils::waitForCompletion( g_deviceCL );
}
else
{
BT_PROFILE("clEnqueueReadBuffer clReleaseMemObject and glUnmapBuffer");
ciErrNum = clEnqueueReadBuffer ( g_cqCommandQue,
clBuffer,
blocking,
0,
VBOsize,
hostPtr,0,0,0);
//clReleaseMemObject(clBuffer);
adl::DeviceUtils::waitForCompletion( g_deviceCL );
glUnmapBuffer( GL_ARRAY_BUFFER);
glFlush();
}
oclCHECKERROR(ciErrNum, CL_SUCCESS);
if (runOpenCLKernels)
{
BT_PROFILE("clFinish");
clFinish(g_cqCommandQue);
}
}
