dense.cpp 2.2 KB

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  1. /*
  2. * MIT License
  3. *
  4. * Copyright (c) 2019 Alexey Edelev <semlanik@gmail.com>
  5. *
  6. * This file is part of NeuralNetwork project https://git.semlanik.org/semlanik/NeuralNetwork
  7. *
  8. * Permission is hereby granted, free of charge, to any person obtaining a copy of this
  9. * software and associated documentation files (the "Software"), to deal in the Software
  10. * without restriction, including without limitation the rights to use, copy, modify,
  11. * merge, publish, distribute, sublicense, and/or sell copies of the Software, and
  12. * to permit persons to whom the Software is furnished to do so, subject to the following
  13. * conditions:
  14. *
  15. * The above copyright notice and this permission notice shall be included in all copies
  16. * or substantial portions of the Software.
  17. *
  18. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
  19. * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  20. * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
  21. * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  22. * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23. * DEALINGS IN THE SOFTWARE.
  24. */
  25. #include "dense.h"
  26. #include <QtGlobal>
  27. //0 - 3 Version = 1 (uint32)
  28. //4 'G' (byte)
  29. //5 'F' (byte)
  30. //6 'A' (byte)
  31. //7 0 (byte)
  32. //8 - 15 number of rows (int64)
  33. //16 - 23 number of columns (int64)
  34. //24 - 31 0 (int64)
  35. //32 - 39 0 (int64)
  36. //40 - .. matrix data elements (float64)
  37. // [0,0] [0,1] ... [0,ncols-1]
  38. // [1,0] [1,1] ... [1,ncols-1]
  39. // ...
  40. // [nrows-1,0] ... [nrows-1,ncols-1]
  41. Dense::Dense(const QByteArray &data) : AbstractDense(*(int64_t *)(data.data() + 8), *(int64_t *)(data.data() + 16), data)
  42. {
  43. }
  44. double Dense::rawValue(int i) const
  45. {
  46. return *(double *)(m_data.data() + 40 + i * sizeof(double));
  47. }
  48. template<>
  49. template<>
  50. double AbstractDense<QByteArray>::value<double>(int row, int column) const
  51. {
  52. const char *dataPtr = m_data.data() + 40 + ((m_columns - 1) * row + column + row) * sizeof(double);
  53. return *(double *)dataPtr;
  54. }