void writeVectorToFile_CPU(thrust::host_vector< thrust::pair<unsigned int, unsigned int> > h_pairVector, thrust::host_vector< float > h_distVector, string pairFileName, string distFileName, unsigned long long count, int fileId) {
FILE * pairFile, * distFile;
string tempStr;
char buf[1000];
sprintf(buf, "_%d", fileId);
tempStr = pairFileName;
tempStr.append(buf);
pairFile = fopen(tempStr.c_str(), "wb");
if (pairFile == NULL){
printf("cannot open pairFile: %s\n", tempStr.c_str());
exit(-1);
}
tempStr = distFileName;
tempStr.append(buf);
distFile = fopen(tempStr.c_str(), "wb");
if (distFile == NULL){
printf("cannot open distFile: %s\n", tempStr.c_str());
exit(-1);
}
thrust::sort_by_key(h_distVector.begin(), h_distVector.end(), h_pairVector.begin());
int pairArray[BUF_SIZE*2];
float distArray[BUF_SIZE];
int h = 0;
thrust::pair<unsigned int, unsigned int> aPair;
cout << "write to : " << tempStr << " " << count << " pairs" << endl;
for (unsigned int i = 0; i < count; ++i)
{
aPair = h_pairVector[i];
distArray[h] = h_distVector[i];
pairArray[h*2] = aPair.first;
pairArray[h*2+1] = aPair.second;
++h;
/*
if (i <= 100)
cout << aPair.first << "\t" << aPair.second << "\t" << distArray[i] << endl;
*/
if (h == BUF_SIZE) {
fwrite(pairArray, sizeof(unsigned int), BUF_SIZE * 2, pairFile);
fwrite(distArray, sizeof(float), BUF_SIZE, distFile);
h = 0;
}
}
if (h > 0) {
fwrite(pairArray, sizeof(unsigned int), h * 2, pairFile);
fwrite(distArray, sizeof(float), h, distFile);
h = 0;
}
fclose(pairFile);
fclose(distFile);
}
void
fill_host(thrust::host_vector<TType> &v)
{
int s = size();
v.resize(s);
thrust::copy(mBuffer.begin(), mBuffer.begin() + s, v.begin());
}
void GLWindow::paintGL()
{
timer->stop();
if (frame_count == 0) gettimeofday(&begin, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (wireframe) glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
else glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective( cameraFOV, 1.0, 1.0, grid_size*4.0);
// set view matrix for 3D scene
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
qrot.getRotMat(rotationMatrix);
glMultMatrixf(rotationMatrix);
// glTranslatef(-(grid_size-1)/2, -(grid_size-1)/2, -(grid_size-1)/2);
size_t num_bytes; GLenum drawType = GL_TRIANGLES;
#ifdef TANGLE
#ifdef USE_INTEROP
isosurface->vboResources[0] = quads_pos_res; isosurface->vboResources[1] = quads_color_res; isosurface->vboResources[2] = quads_normal_res;
isosurface->minIso = 31.0f; isosurface->maxIso = 500.0f; isosurface->useInterop = true;
isosurface->vboSize = buffer_size;
#endif
(*isosurface)();
#ifndef USE_INTEROP
vertices.assign(isosurface->vertices_begin(), isosurface->vertices_end());
normals.assign(isosurface->normals_begin(), isosurface->normals_end());
colors.assign(thrust::make_transform_iterator(isosurface->scalars_begin(), color_map<float>(31.0f, 500.0f)),
thrust::make_transform_iterator(isosurface->scalars_end(), color_map<float>(31.0f, 500.0f)));
#endif
#endif
#ifdef CUTPLANE
#ifdef USE_INTEROP
cutplane->vboResources[0] = quads_pos_res; cutplane->vboResources[1] = quads_color_res; cutplane->vboResources[2] = quads_normal_res;
cutplane->minIso = 0.0f; cutplane->maxIso = 1.0f; cutplane->useInterop = true;
cutplane->vboSize = buffer_size;
#endif
(*cutplane)();
#ifndef USE_INTEROP
vertices.assign(cutplane->vertices_begin(), cutplane->vertices_end());
normals.assign(cutplane->normals_begin(), cutplane->normals_end());
colors.assign(thrust::make_transform_iterator(cutplane->scalars_begin(), color_map<float>(0.0f, 1.0f)),
thrust::make_transform_iterator(cutplane->scalars_end(), color_map<float>(0.0f, 1.0f)));
#endif
#endif
#ifdef THRESHOLD
#ifdef USE_INTEROP
threshold->vboResources[0] = quads_pos_res; threshold->vboResources[1] = quads_color_res; threshold->vboResources[2] = quads_normal_res;
threshold->minThresholdRange = 4.0f; threshold->maxThresholdRange = 1600.0f; threshold->useInterop = true;
threshold->vboSize = buffer_size;
#endif
(*threshold)();
#ifndef USE_INTEROP
vertices.resize(threshold->vertices_end() - threshold->vertices_begin());
normals.resize(threshold->normals_end() - threshold->normals_begin());
thrust::device_vector<float4> device_colors(vertices.size());
// thrust::copy(thrust::make_transform_iterator(threshold->vertices_begin(), tuple2float4()),
// thrust::make_transform_iterator(threshold->vertices_end(), tuple2float4()), vertices.begin());
thrust::copy(threshold->vertices_begin(),
threshold->vertices_end(),
vertices.begin());
thrust::copy(threshold->normals_begin(), threshold->normals_end(), normals.begin());
thrust::transform(threshold->scalars_begin(), threshold->scalars_end(), device_colors.begin(), color_map<float>(4.0f, 1600.0f));
colors = device_colors;
#endif
drawType = GL_QUADS;
#endif
#ifdef USE_INTEROP
glBindBuffer(GL_ARRAY_BUFFER, quads_vbo[0]);
glVertexPointer(4, GL_FLOAT, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, quads_vbo[1]);
glNormalPointer(GL_FLOAT, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, quads_vbo[2]);
glColorPointer(4, GL_FLOAT, 0, 0);
glDrawArrays(drawType, 0, buffer_size/sizeof(float4));
#else
glColorPointer(4, GL_FLOAT, 0, &colors[0]);
glNormalPointer(GL_FLOAT, 0, &normals[0]);
glVertexPointer(4, GL_FLOAT, 0, &vertices[0]);
glDrawArrays(drawType, 0, vertices.size());
#endif
glPopMatrix();
gettimeofday(&end, 0);
timersub(&end, &begin, &diff);
frame_count++;
float seconds = diff.tv_sec + 1.0E-6*diff.tv_usec;
if (seconds > 0.5f)
{
char title[256];
sprintf(title, "Marching Cube, fps: %2.2f", float(frame_count)/seconds);
std::cout << title << std::endl;
seconds = 0.0f;
frame_count = 0;
}
timer->start(1);
}