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Speed improvment to fft_convol_blur

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This commit is contained in:
Desmis 2019-06-11 14:14:53 +02:00
parent 1d31a52750
commit cdba247a04
1 changed files with 45 additions and 3 deletions
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48
rtengine/iplocallab.cc
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@ -3980,6 +3980,16 @@ void ImProcFunctions::fftw_convol_blur(float *input, float *output, int bfw, int
** Gaussian blur is given by G(x,y) = (1/2*PI*sigma) * exp(-(x2 + y2) / 2* sigma2)
*/
BENCHFUN
#ifdef RT_FFTW3F_OMP
if (multiThread) {
fftwf_init_threads();
fftwf_plan_with_nthreads ( omp_get_max_threads() );
}
// #else
// fftwf_plan_with_nthreads( 2 );
#endif
float *out; //for FFT datas
float *kern = nullptr;//for kernel gauss
@ -7154,13 +7164,13 @@ void ImProcFunctions::Lab_Local(int call, int sp, float** shbuffer, LabImage * o
if (!lp.inv && (lp.chro != 0 || lp.ligh != 0.f || lp.cont != 0 || ctoning || lp.qualcurvemet != 0 || lp.showmaskcolmet == 2 || lp.enaColorMask || lp.showmaskcolmet == 3 || lp.showmaskcolmet == 4 || lp.showmaskcolmet == 5) && lp.colorena) { // || lllocalcurve)) { //interior ellipse renforced lightness and chroma //locallutili
/*
//test for fftw blur with tiles....
//test for fftw blur with tiles....not good we can see tiles - very long time
int GW = original->W;
int GH = original->H;
MyMutex::MyLock lock (*fftwMutex);
double radius = 80.f;
int tilssize = 512;
double radius = 100.f;
int tilssize = 64;
#ifdef _OPENMP
const int numThreads = omp_get_max_threads();
#else
@ -7172,6 +7182,38 @@ void ImProcFunctions::Lab_Local(int call, int sp, float** shbuffer, LabImage * o
int min_numblox_W = ceil((static_cast<float>(GW)) / (offset2)) + 2 * blkrad;
fftw_tile_blur(GW, GH, tilssize , max_numblox_W, min_numblox_W, original->L, numThreads, radius);
*/
/*
//test for fftw blur : good result speedup moderate , but less used of memory than gaussianblur
int GW = original->W;
int GH = original->H;
MyMutex::MyLock lock (*fftwMutex);
float *datain = new float[GW*GH];
float *dataout = new float[GW*GH];
float radius = 500.f;
#ifdef _OPENMP
#pragma omp parallel for schedule(dynamic,16)
#endif
for (int y = 0; y < GH; y++) {
for (int x = 0; x < GW; x++) {
datain[y * GW + x] =original->L[y][x];
}
}
fftw_convol_blur(datain, dataout, GW, GH, radius, 0);
#ifdef _OPENMP
#pragma omp parallel for schedule(dynamic,16)
#endif
for (int y = 0; y < GH; y++) {
for (int x = 0; x < GW; x++) {
original->L[y][x] = dataout[y * GW + x];
}
}
delete [] datain;
delete [] dataout;
*/
const int ystart = std::max(static_cast<int>(lp.yc - lp.lyT) - cy, 0);
const int yend = std::min(static_cast<int>(lp.yc + lp.ly) - cy, original->H);
const int xstart = std::max(static_cast<int>(lp.xc - lp.lxL) - cx, 0);