| /*****************************************************************************/ |
| // Copyright 2007 Adobe Systems Incorporated |
| // All Rights Reserved. |
| // |
| // NOTICE: Adobe permits you to use, modify, and distribute this file in |
| // accordance with the terms of the Adobe license agreement accompanying it. |
| /*****************************************************************************/ |
| |
| /* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_tone_curve.cpp#1 $ */ |
| /* $DateTime: 2012/05/30 13:28:51 $ */ |
| /* $Change: 832332 $ */ |
| /* $Author: tknoll $ */ |
| |
| /*****************************************************************************/ |
| |
| #include "dng_tone_curve.h" |
| |
| #include "dng_assertions.h" |
| #include "dng_spline.h" |
| #include "dng_utils.h" |
| |
| /******************************************************************************/ |
| |
| dng_tone_curve::dng_tone_curve () |
| |
| : fCoord () |
| |
| { |
| |
| SetNull (); |
| |
| } |
| |
| /******************************************************************************/ |
| |
| bool dng_tone_curve::operator== (const dng_tone_curve &curve) const |
| { |
| |
| return fCoord == curve.fCoord; |
| |
| } |
| |
| /******************************************************************************/ |
| |
| void dng_tone_curve::SetNull () |
| { |
| |
| fCoord.resize (2); |
| |
| fCoord [0].h = 0.0; |
| fCoord [0].v = 0.0; |
| |
| fCoord [1].h = 1.0; |
| fCoord [1].v = 1.0; |
| |
| } |
| |
| /******************************************************************************/ |
| |
| bool dng_tone_curve::IsNull () const |
| { |
| |
| dng_tone_curve temp; |
| |
| return (*this == temp); |
| |
| } |
| |
| /******************************************************************************/ |
| |
| void dng_tone_curve::SetInvalid () |
| { |
| |
| fCoord.clear (); |
| |
| } |
| |
| /******************************************************************************/ |
| |
| bool dng_tone_curve::IsValid () const |
| { |
| |
| if (fCoord.size () < 2) |
| { |
| |
| return false; |
| |
| } |
| |
| for (uint32 j = 0; j < fCoord.size (); j++) |
| { |
| |
| if (fCoord [j] . h < 0.0 || fCoord [j] . h > 1.0 || |
| fCoord [j] . v < 0.0 || fCoord [j] . v > 1.0) |
| { |
| |
| return false; |
| |
| } |
| |
| if (j > 0) |
| { |
| |
| if (fCoord [j] . h <= fCoord [j - 1] . h) |
| { |
| |
| return false; |
| |
| } |
| |
| } |
| |
| } |
| |
| return true; |
| |
| } |
| |
| /******************************************************************************/ |
| |
| void dng_tone_curve::Solve (dng_spline_solver &solver) const |
| { |
| |
| solver.Reset (); |
| |
| for (uint32 index = 0; index < fCoord.size (); index++) |
| { |
| |
| solver.Add (fCoord [index].h, |
| fCoord [index].v); |
| |
| } |
| |
| solver.Solve (); |
| |
| } |
| |
| /*****************************************************************************/ |
