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comparison Framework/Loaders/OrthancMultiframeVolumeLoader.cpp @ 1349:b1e6bef86955 broker

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Tentative loop optimization in CopyPixelDataAndComputeDistribution
author Benjamin Golinvaux <bgo@osimis.io>
date Fri, 10 Apr 2020 16:12:14 +0200
parents b1396be5aa27
children 104e0b0f2316
comparison
equal deleted inserted replaced
1348:eac254fb6791 1349:b1e6bef86955
311 OrthancStone::ImageBuffer3D::SliceWriter writer(target, OrthancStone::VolumeProjection_Axial, z); 311 OrthancStone::ImageBuffer3D::SliceWriter writer(target, OrthancStone::VolumeProjection_Axial, z);
312 312
313 assert(writer.GetAccessor().GetWidth() == width && 313 assert(writer.GetAccessor().GetWidth() == width &&
314 writer.GetAccessor().GetHeight() == height); 314 writer.GetAccessor().GetHeight() == height);
315 315
316 T* targetAddr0 = reinterpret_cast<T*>(writer.GetAccessor().GetRow(0));
317 unsigned int pitch = writer.GetAccessor().GetPitch();
318 T* targetAddr = targetAddr0;
319 assert(sizeof(T) == Orthanc::GetBytesPerPixel(target.GetFormat()));
320
316 for (unsigned int y = 0; y < height; y++) 321 for (unsigned int y = 0; y < height; y++)
317 { 322 {
318 assert(sizeof(T) == Orthanc::GetBytesPerPixel(target.GetFormat()));
319
320 T* target = reinterpret_cast<T*>(writer.GetAccessor().GetRow(y));
321
322 for (unsigned int x = 0; x < width; x++) 323 for (unsigned int x = 0; x < width; x++)
323 { 324 {
324 CopyPixel(*target, source); 325 CopyPixel(*targetAddr, source);
325 326
326 distribution[*target] += 1; 327 distribution[*targetAddr] += 1;
327 328
328 target++; 329 targetAddr++;
329 source += bpp; 330 source += bpp;
330 } 331 }
332 targetAddr += pitch;
331 } 333 }
332 } 334 }
333 } 335 }
334 } 336 }
335 337