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custom trc, speedup and reduced memory usage, #5025

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heckflosse
2018-11-25 13:54:59 +01:00
parent 67aa52b4ff
commit 20577ccab6
7 changed files with 53 additions and 127 deletions
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21
rtengine/imagefloat.cc
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@@ -475,7 +475,7 @@ void Imagefloat::calcCroppedHistogram(const ProcParams &params, float scale, LUT
}
// Parallelized transformation; create transform with cmsFLAGS_NOCACHE!
void Imagefloat::ExecCMSTransform2(cmsHTRANSFORM hTransform)
void Imagefloat::ExecCMSTransform2(cmsHTRANSFORM hTransform, bool normalizeIn)
{
// LittleCMS cannot parallelize planar setups -- Hombre: LCMS2.4 can! But it we use this new feature, memory allocation
@@ -487,18 +487,25 @@ void Imagefloat::ExecCMSTransform2(cmsHTRANSFORM hTransform)
AlignedBuffer<float> pBuf(width * 3);
#ifdef _OPENMP
#pragma omp for schedule(static)
#pragma omp for schedule(dynamic, 16)
#endif
for (int y = 0; y < height; y++)
{
float *p = pBuf.data, *pR = r(y), *pG = g(y), *pB = b(y);
for (int x = 0; x < width; x++) {
*(p++) = *(pR++)/ 65535.f;
*(p++) = *(pG++)/ 65535.f;
*(p++) = *(pB++)/ 65535.f;
if (normalizeIn) {
for (int x = 0; x < width; x++) {
*(p++) = *(pR++)/ 65535.f;
*(p++) = *(pG++)/ 65535.f;
*(p++) = *(pB++)/ 65535.f;
}
} else {
for (int x = 0; x < width; x++) {
*(p++) = *(pR++);
*(p++) = *(pG++);
*(p++) = *(pB++);
}
}
cmsDoTransform (hTransform, pBuf.data, pBuf.data, width);