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