C++ (Cpp) GLInstancingRenderer::getInternalData Exemples

Exemple #1

Fichier : main.cpp Projet : saggita/experiments

void GL2CL(CLPhysicsDemo& demo, GLInstancingRenderer& render)
{
	BT_PROFILE("simulationLoop");
	int VBOsize = demo.m_maxShapeBufferCapacityInBytes+demo.m_numPhysicsInstances*(4+4+4+3)*sizeof(float);
	
	cl_int ciErrNum = CL_SUCCESS;


	if(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, render.getInternalData()->m_vbo);
		glFlush();

		BT_PROFILE("glMapBuffer and clEnqueueWriteBuffer");

		blocking=  CL_TRUE;
		hostPtr=  (char*)glMapBuffer( GL_ARRAY_BUFFER,GL_READ_WRITE);//GL_WRITE_ONLY
		

		if (!clBuffer)
		{
			int maxVBOsize = demo.m_maxShapeBufferCapacityInBytes+MAX_CONVEX_BODIES_CL*(4+4+4+3)*sizeof(float);
			clBuffer = clCreateBuffer(g_cxMainContext, CL_MEM_READ_WRITE,maxVBOsize, 0, &ciErrNum);
			clFinish(g_cqCommandQue);
			oclCHECKERROR(ciErrNum, CL_SUCCESS);

		ciErrNum = clEnqueueWriteBuffer (	g_cqCommandQue,
 			clBuffer,
 			blocking,
 			0,
 			VBOsize,
 			hostPtr,0,0,0
		);
		clFinish(g_cqCommandQue);
		} 
		
	}

	gFpIO.m_clObjectsBuffer = clBuffer;
	gFpIO.m_positionOffset = demo.m_maxShapeBufferCapacityInBytes/4;
}