| 78 | } |
| 79 | |
| 80 | void Conversions::Scale(Image& Source, Image& Dest) |
| 81 | { |
| 82 | CheckSameSize(Source, Dest); |
| 83 | |
| 84 | double SrcRange = GetTypeRange(Source); |
| 85 | double DstRange = GetTypeRange(Dest); |
| 86 | |
| 87 | double SrcMin = GetTypeMin(Source); |
| 88 | double DstMin = GetTypeMin(Dest); |
| 89 | |
| 90 | if (SrcRange == DstRange && SrcMin == DstMin) |
| 91 | { |
| 92 | Convert(Source, Dest); |
| 93 | return; |
| 94 | } |
| 95 | |
| 96 | float Ratio = static_cast<float>(DstRange / SrcRange); |
| 97 | int Offset = static_cast<int>(-SrcMin * Ratio + DstMin); |
| 98 | |
| 99 | Scale(Source, Dest, Offset, Ratio); |
| 100 | } |
| 101 | |
| 102 | void Conversions::Scale(Image& Source, Image& Dest, int Offset, float Ratio) |
| 103 | { |
nothing calls this directly
no test coverage detected