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RColumnElement.cxx
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1/// \file RColumnElement.cxx
2/// \ingroup NTuple ROOT7
3/// \author Jakob Blomer <jblomer@cern.ch>
4/// \date 2019-08-11
5/// \warning This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback
6/// is welcome!
7
8/*************************************************************************
9 * Copyright (C) 1995-2019, Rene Brun and Fons Rademakers. *
10 * All rights reserved. *
11 * *
12 * For the licensing terms see $ROOTSYS/LICENSE. *
13 * For the list of contributors see $ROOTSYS/README/CREDITS. *
14 *************************************************************************/
15
16#include <ROOT/RColumnElement.hxx>
17
18#include <TError.h>
19
20#include <algorithm>
21#include <bitset>
22#include <cstdint>
23#include <memory>
24#include <utility>
25
26template <>
27std::unique_ptr<ROOT::Experimental::Detail::RColumnElementBase>
28ROOT::Experimental::Detail::RColumnElementBase::Generate<void>(EColumnType type)
29{
30 switch (type) {
31 case EColumnType::kIndex64: return std::make_unique<RColumnElement<ClusterSize_t, EColumnType::kIndex64>>(nullptr);
32 case EColumnType::kIndex32: return std::make_unique<RColumnElement<ClusterSize_t, EColumnType::kIndex32>>(nullptr);
33 case EColumnType::kSwitch: return std::make_unique<RColumnElement<RColumnSwitch, EColumnType::kSwitch>>(nullptr);
34 case EColumnType::kByte: return std::make_unique<RColumnElement<std::uint8_t, EColumnType::kByte>>(nullptr);
35 case EColumnType::kChar: return std::make_unique<RColumnElement<char, EColumnType::kChar>>(nullptr);
36 case EColumnType::kBit: return std::make_unique<RColumnElement<bool, EColumnType::kBit>>(nullptr);
37 case EColumnType::kReal64: return std::make_unique<RColumnElement<double, EColumnType::kReal64>>(nullptr);
38 case EColumnType::kReal32: return std::make_unique<RColumnElement<float, EColumnType::kReal32>>(nullptr);
39 case EColumnType::kInt64: return std::make_unique<RColumnElement<std::int64_t, EColumnType::kInt64>>(nullptr);
40 case EColumnType::kInt32: return std::make_unique<RColumnElement<std::int32_t, EColumnType::kInt32>>(nullptr);
41 case EColumnType::kInt16: return std::make_unique<RColumnElement<std::int16_t, EColumnType::kInt16>>(nullptr);
42 case EColumnType::kInt8: return std::make_unique<RColumnElement<std::int8_t, EColumnType::kInt8>>(nullptr);
43 case EColumnType::kSplitIndex64:
44 return std::make_unique<RColumnElement<ClusterSize_t, EColumnType::kSplitIndex64>>(nullptr);
45 case EColumnType::kSplitIndex32:
46 return std::make_unique<RColumnElement<ClusterSize_t, EColumnType::kSplitIndex32>>(nullptr);
47 case EColumnType::kSplitReal64: return std::make_unique<RColumnElement<double, EColumnType::kSplitReal64>>(nullptr);
48 case EColumnType::kSplitReal32: return std::make_unique<RColumnElement<float, EColumnType::kSplitReal32>>(nullptr);
49 case EColumnType::kSplitInt64:
50 return std::make_unique<RColumnElement<std::int64_t, EColumnType::kSplitInt64>>(nullptr);
51 case EColumnType::kSplitInt32:
52 return std::make_unique<RColumnElement<std::int32_t, EColumnType::kSplitInt32>>(nullptr);
53 case EColumnType::kSplitInt16:
54 return std::make_unique<RColumnElement<std::int16_t, EColumnType::kSplitInt16>>(nullptr);
55 default: R__ASSERT(false);
56 }
57 // never here
58 return nullptr;
59}
60
61std::size_t ROOT::Experimental::Detail::RColumnElementBase::GetBitsOnStorage(EColumnType type) {
62 switch (type) {
63 case EColumnType::kIndex64: return 64;
64 case EColumnType::kIndex32: return 32;
65 case EColumnType::kSwitch: return 64;
66 case EColumnType::kByte: return 8;
67 case EColumnType::kChar: return 8;
68 case EColumnType::kBit: return 1;
69 case EColumnType::kReal64: return 64;
70 case EColumnType::kReal32: return 32;
71 case EColumnType::kInt64: return 64;
72 case EColumnType::kInt32: return 32;
73 case EColumnType::kInt16: return 16;
74 case EColumnType::kInt8: return 8;
75 case EColumnType::kSplitIndex64: return 64;
76 case EColumnType::kSplitIndex32: return 32;
77 case EColumnType::kSplitReal64: return 64;
78 case EColumnType::kSplitReal32: return 32;
79 case EColumnType::kSplitInt64: return 64;
80 case EColumnType::kSplitInt32: return 32;
81 case EColumnType::kSplitInt16: return 16;
82 default: R__ASSERT(false);
83 }
84 // never here
85 return 0;
86}
87
88std::string ROOT::Experimental::Detail::RColumnElementBase::GetTypeName(EColumnType type) {
89 switch (type) {
90 case EColumnType::kIndex64: return "Index64";
91 case EColumnType::kIndex32: return "Index32";
92 case EColumnType::kSwitch: return "Switch";
93 case EColumnType::kByte: return "Byte";
94 case EColumnType::kChar: return "Char";
95 case EColumnType::kBit: return "Bit";
96 case EColumnType::kReal64: return "Real64";
97 case EColumnType::kReal32: return "Real32";
98 case EColumnType::kInt64: return "Int64";
99 case EColumnType::kInt32: return "Int32";
100 case EColumnType::kInt16: return "Int16";
101 case EColumnType::kInt8: return "Int8";
102 case EColumnType::kSplitIndex64: return "SplitIndex64";
103 case EColumnType::kSplitIndex32: return "SplitIndex32";
104 case EColumnType::kSplitReal64: return "SplitReal64";
105 case EColumnType::kSplitReal32: return "SplitReal32";
106 case EColumnType::kSplitInt64: return "SplitInt64";
107 case EColumnType::kSplitInt32: return "SplitInt32";
108 case EColumnType::kSplitInt16: return "SplitInt16";
109 default: return "UNKNOWN";
110 }
111}
112
113void ROOT::Experimental::Detail::RColumnElement<bool, ROOT::Experimental::EColumnType::kBit>::Pack(
114 void *dst, void *src, std::size_t count) const
115{
116 bool *boolArray = reinterpret_cast<bool *>(src);
117 char *charArray = reinterpret_cast<char *>(dst);
118 std::bitset<8> bitSet;
119 std::size_t i = 0;
120 for (; i < count; ++i) {
121 bitSet.set(i % 8, boolArray[i]);
122 if (i % 8 == 7) {
123 char packed = bitSet.to_ulong();
124 charArray[i / 8] = packed;
125 }
126 }
127 if (i % 8 != 0) {
128 char packed = bitSet.to_ulong();
129 charArray[i / 8] = packed;
130 }
131}
132
133void ROOT::Experimental::Detail::RColumnElement<bool, ROOT::Experimental::EColumnType::kBit>::Unpack(
134 void *dst, void *src, std::size_t count) const
135{
136 bool *boolArray = reinterpret_cast<bool *>(dst);
137 char *charArray = reinterpret_cast<char *>(src);
138 std::bitset<8> bitSet;
139 for (std::size_t i = 0; i < count; i += 8) {
140 bitSet = charArray[i / 8];
141 for (std::size_t j = i; j < std::min(count, i + 8); ++j) {
142 boolArray[j] = bitSet[j % 8];
143 }
144 }
145}
R__ASSERT
#define R__ASSERT(e)
Definition TError.h:118
src
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t src
Definition TGWin32VirtualXProxy.cxx:164
type
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t Float_t Float_t Int_t Int_t UInt_t UInt_t Rectangle_t Int_t Int_t Window_t TString Int_t GCValues_t GetPrimarySelectionOwner GetDisplay GetScreen GetColormap GetNativeEvent const char const char dpyName wid window const char font_name cursor keysym reg const char only_if_exist regb h Point_t winding char text const char depth char const char Int_t count const char ColorStruct_t color const char Pixmap_t Pixmap_t PictureAttributes_t attr const char char ret_data h unsigned char height h Atom_t Int_t ULong_t ULong_t unsigned char prop_list Atom_t Atom_t Atom_t Time_t type
Definition TGWin32VirtualXProxy.cxx:249
ROOT::Experimental::Detail::RColumnElementBase::Pack
virtual void Pack(void *destination, void *source, std::size_t count) const
If the on-storage layout and the in-memory layout differ, packing creates an on-disk page from an in-...
Definition RColumnElement.hxx:265
ROOT::Experimental::Detail::RColumnElementBase::GetTypeName
static std::string GetTypeName(EColumnType type)
Definition RColumnElement.cxx:88
ROOT::Experimental::Detail::RColumnElementBase::Unpack
virtual void Unpack(void *destination, void *source, std::size_t count) const
If the on-storage layout and the in-memory layout differ, unpacking creates a memory page from an on-...
Definition RColumnElement.hxx:271