void
VolumeBase::createLowresVolume(bool redo)
{
if (Global::volumeType() == Global::DummyVolume)
{
m_subSamplingLevel = 1;
m_lowresVolumeSize = m_fullVolumeSize/m_subSamplingLevel;
return;
}
int px2, py2, pz2;
px2 = StaticFunctions::getPowerOf2(m_fullVolumeSize.x);
py2 = StaticFunctions::getPowerOf2(m_fullVolumeSize.y);
pz2 = StaticFunctions::getPowerOf2(m_fullVolumeSize.z);
int lod = 1;
int gtsz = StaticFunctions::getPowerOf2(Global::textureSizeLimit());
gtsz --; // be on the lower side
if (px2 > gtsz || py2 > gtsz || pz2 > gtsz)
{
int maxp2, df;
maxp2 = qMax(px2, qMax(py2, pz2));
df = maxp2 - gtsz; // 2^gtsz = Global::textureSizeLimit()
lod += df;
}
gtsz = qMin(26, Global::textureSize()-1);
if ((px2+py2+pz2) - 3*(lod-1) > gtsz)
{
int df0, df;
df0 = (px2+py2+pz2) - 3*(lod-1) - gtsz;
df = df0/3 + (df0%3 > 0);
lod += df;
}
m_subSamplingLevel = (int)pow((float)2, (float)lod-1);
// max hardware texture size is 512x512x512
if ((px2 > 9 || py2 > 9 || pz2 > 9) &&
m_subSamplingLevel == 1)
m_subSamplingLevel = 2;
m_lowresVolumeSize = m_fullVolumeSize/m_subSamplingLevel;
int height= m_lowresVolumeSize.x;
int width = m_lowresVolumeSize.y;
int depth = m_lowresVolumeSize.z;
int bpv = 1;
if (m_pvlVoxelType > 0) bpv = 2;
if (m_lowresVolume) delete [] m_lowresVolume;
m_lowresVolume = new unsigned char[bpv*height*width*depth];
memset(m_lowresVolume, 0, bpv*height*width*depth);
int iend,jend,kend;
iend = height;
jend = width;
kend = depth;
unsigned char *tmp;
tmp = new unsigned char [bpv*jend*iend];
memset(tmp, 0, bpv*jend*iend);
//-----------
uchar *g0, *g1, *g2;
g0 = new unsigned char [bpv*m_width*m_height];
g1 = new unsigned char [bpv*m_width*m_height];
g2 = new unsigned char [bpv*m_width*m_height];
if (m_1dHistogram) delete [] m_1dHistogram;
if (m_2dHistogram) delete [] m_2dHistogram;
m_1dHistogram = new int[256];
memset(m_1dHistogram, 0, 256*4);
m_2dHistogram = new int[256*256];
memset(m_2dHistogram, 0, 256*256*4);
float *flhist1D = new float[256];
memset(flhist1D, 0, 256*4);
float *flhist2D = new float[256*256];
memset(flhist2D, 0, 256*256*4);
//-----------
VolumeFileManager pvlFileManager;
int slabSize = XmlHeaderFunctions::getSlabsizeFromHeader(m_volumeFile);
int headerSize = XmlHeaderFunctions::getPvlHeadersizeFromHeader(m_volumeFile);
QStringList pvlnames = XmlHeaderFunctions::getPvlNamesFromHeader(m_volumeFile);
if (pvlnames.count() > 0)
pvlFileManager.setFilenameList(pvlnames);
pvlFileManager.setBaseFilename(m_volumeFile);
pvlFileManager.setVoxelType(m_pvlVoxelType);
pvlFileManager.setDepth(m_depth);
pvlFileManager.setWidth(m_width);
pvlFileManager.setHeight(m_height);
pvlFileManager.setHeaderSize(headerSize); // default is 13 bytes
pvlFileManager.setSlabSize(slabSize);
if (!pvlFileManager.exists())
QMessageBox::information(0, "", "Some problem with pvl.nc files");
MainWindowUI::mainWindowUI()->menubar->parentWidget()->\
setWindowTitle(QString("Generating Lowres Version"));
Global::progressBar()->show();
int nbytes = bpv*m_width*m_height;
for(int kslc=0; kslc<kend; kslc++)
{
int k = kslc*m_subSamplingLevel;
Global::progressBar()->setValue((int)(100.0*(float)k/(float)m_depth));
if (k%10==0) qApp->processEvents();
uchar *vslice = pvlFileManager.getSlice(k);
memcpy(g2, vslice, nbytes);
if (bpv == 1) // uchar
{
for(int j=0; j<m_width*m_height; j++)
flhist1D[g2[j]]++;
if (kslc >= 2)
{
for(int j=1; j<m_width-1; j++)
for(int i=1; i<m_height-1; i++)
{
int gx = (g1[j*m_height+(i+1)] - g1[j*m_height+(i-1)]);
int gy = (g1[(j+1)*m_height+i] - g1[(j-1)*m_height+i]);
int gz = (g2[j*m_height+i] - g0[j*m_height+i]);
int gsum = sqrtf(gx*gx+gy*gy+gz*gz);
gsum = qBound(0, gsum, 255);
int v = g1[j*m_height+i];
flhist2D[gsum*256 + v]++;
}
}
}
else // ushort
{
for(int j=0; j<m_width*m_height; j++)
flhist1D[((ushort*)g2)[j]/256]++;
for(int j=0; j<m_width*m_height; j++)
flhist2D[((ushort*)g2)[j]]++;
// if (kslc >= 2)
// {
// for(int j=1; j<m_width-1; j++)
// for(int i=1; i<m_height-1; i++)
// {
// int v = ((ushort*)g1)[j*m_height+i];
// //flhist2D[v]++;
// int gsum = v/256;
// int vg = v-gsum*256;
// flhist2D[gsum*256 + vg]++;
// }
// }
}
uchar *gt = g0;
g0 = g1;
g1 = g2;
g2 = gt;
if (m_subSamplingLevel > 1)
{
int ji=0;
if (bpv == 1)
{
for(int j=0; j<jend; j++)
{
int y = j*m_subSamplingLevel;
for(int i=0; i<iend; i++)
{
int x = i*m_subSamplingLevel;
tmp[ji] = g2[y*m_height+x];
ji++;
}
}
}
else
{
for(int j=0; j<jend; j++)
{
int y = j*m_subSamplingLevel;
for(int i=0; i<iend; i++)
{
int x = i*m_subSamplingLevel;
((ushort*)tmp)[ji] = ((ushort*)g2)[y*m_height+x];
ji++;
}
}
}
memcpy(m_lowresVolume + bpv*kslc*jend*iend,
tmp,
bpv*jend*iend);
}
else
memcpy(m_lowresVolume + bpv*kslc*jend*iend,
g2,
bpv*jend*iend);
}
int actualdepth = StaticFunctions::getScaledown(m_subSamplingLevel, m_depth);
if (actualdepth < depth)
{
// replicate the data
for (int dd=actualdepth; dd<depth; dd++)
memcpy(m_lowresVolume + bpv*dd*jend*iend,
m_lowresVolume + bpv*(dd-1)*jend*iend,
bpv*jend*iend);
}
delete [] g0;
delete [] g1;
delete [] g2;
delete [] tmp;
if (m_pvlVoxelType == 0)
StaticFunctions::generateHistograms(flhist1D, flhist2D,
m_1dHistogram, m_2dHistogram);
else // just copy
{
for(int i=0; i<256; i++)
m_1dHistogram[i] = flhist1D[i];
for(int i=0; i<256*256; i++)
m_2dHistogram[i] = flhist2D[i];
}
delete [] flhist1D;
delete [] flhist2D;
Global::progressBar()->setValue(100);
Global::hideProgressBar();
qApp->processEvents();
}
void
ImageStackPlugin::saveTrimmedRGB(QString trimFile,
int dmin, int dmax,
int wmin, int wmax,
int hmin, int hmax)
{
QStringList dtypes;
dtypes << "No"
<< "Yes";
QString option = QInputDialog::getItem(0,
"Save Alpha Channel",
"Alpha Channel",
dtypes,
0,
false);
bool saveAlpha = false;
if (option == "Yes")
saveAlpha = true;
QProgressDialog progress("Saving trimmed RGB volume",
"Cancel",
0, 100,
0);
progress.setMinimumDuration(0);
int nX, nY, nZ;
nX = m_depth;
nY = m_width;
nZ = m_height;
int d, w, h;
d = dmax-dmin+1;
w = wmax-wmin+1;
h = hmax-hmin+1;
int nbytes = nY*nZ;
uchar *tmpR = new uchar[nbytes];
uchar *tmpG = new uchar[nbytes];
uchar *tmpB = new uchar[nbytes];
uchar *tmpA;
if (saveAlpha)
tmpA = new uchar[nbytes];
QString voxelType = "RGB";
if (saveAlpha) voxelType = "RGBA";
//*** max 1Gb per slab
int slabSize;
slabSize = (1024*1024*1024)/(w*h);
savePvlHeader(trimFile,
d, w, h,
voxelType,
slabSize);
VolumeFileManager rFileManager;
VolumeFileManager gFileManager;
VolumeFileManager bFileManager;
VolumeFileManager aFileManager;
QString pvlfile = trimFile;
pvlfile.chop(6);
QString rFilename = pvlfile + QString("red");
QString gFilename = pvlfile + QString("green");
QString bFilename = pvlfile + QString("blue");
QString aFilename = pvlfile + QString("alpha");
rFileManager.setBaseFilename(rFilename);
rFileManager.setDepth(d);
rFileManager.setWidth(w);
rFileManager.setHeight(h);
rFileManager.setVoxelType(0);
rFileManager.setHeaderSize(13);
rFileManager.setSlabSize(slabSize);
rFileManager.createFile(true);
rFileManager.createFile(true);
gFileManager.setBaseFilename(gFilename);
gFileManager.setDepth(d);
gFileManager.setWidth(w);
gFileManager.setHeight(h);
gFileManager.setVoxelType(0);
gFileManager.setHeaderSize(13);
gFileManager.setSlabSize(slabSize);
gFileManager.createFile(true);
gFileManager.createFile(true);
bFileManager.setBaseFilename(bFilename);
bFileManager.setDepth(d);
bFileManager.setWidth(w);
bFileManager.setHeight(h);
bFileManager.setVoxelType(0);
bFileManager.setHeaderSize(13);
bFileManager.setSlabSize(slabSize);
bFileManager.createFile(true);
bFileManager.createFile(true);
if (saveAlpha)
{
aFileManager.setBaseFilename(aFilename);
aFileManager.setDepth(d);
aFileManager.setWidth(w);
aFileManager.setHeight(h);
aFileManager.setVoxelType(0);
aFileManager.setHeaderSize(13);
aFileManager.setSlabSize(slabSize);
aFileManager.createFile(true);
aFileManager.createFile(true);
}
for(int i=dmax; i>=dmin; i--)
{
QImage imgL = QImage(m_imageList[i]);
if (imgL.format() != QImage::Format_ARGB32)
imgL = imgL.convertToFormat(QImage::Format_ARGB32);
uchar *imgbits = imgL.bits();
for(uint j=0; j<m_width*m_height; j++)
{
tmpR[j] = imgbits[4*j+2];
tmpG[j] = imgbits[4*j+1];
tmpB[j] = imgbits[4*j+0];
}
if (saveAlpha)
{
for(uint j=0; j<m_width*m_height; j++)
tmpA[j] = imgbits[4*j+3];
}
for(uint j=wmin; j<=wmax; j++)
memcpy(tmpR+(j-wmin)*h,
tmpR+(j*nZ + hmin),
h);
for(uint j=wmin; j<=wmax; j++)
memcpy(tmpG+(j-wmin)*h,
tmpG+(j*nZ + hmin),
h);
for(uint j=wmin; j<=wmax; j++)
memcpy(tmpB+(j-wmin)*h,
tmpB+(j*nZ + hmin),
h);
if (saveAlpha)
{
for(uint j=wmin; j<=wmax; j++)
memcpy(tmpA+(j-wmin)*h,
tmpA+(j*nZ + hmin),
h);
}
rFileManager.setSlice(dmax-i, tmpR);
gFileManager.setSlice(dmax-i, tmpG);
bFileManager.setSlice(dmax-i, tmpB);
if (saveAlpha)
aFileManager.setSlice(dmax-i, tmpA);
progress.setValue((int)(100*(float)(dmax-i)/(float)d));
qApp->processEvents();
}
delete [] tmpR;
delete [] tmpG;
delete [] tmpB;
if (saveAlpha)
delete [] tmpA;
progress.setValue(100);
}