if no b/a area enabled some speed up when opening images

2010-09-09 16:17:56 -07:00
commit 459a8e4b0e
597 changed files with 121217 additions and 0 deletions
--- a/rtengine/colortemp.cc
+++ b/rtengine/colortemp.cc
@@ -0,0 +1,87 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <colortemp.h>
+
+using namespace rtengine;
+
+ColorTemp::ColorTemp (double t, double g) : temp(t), green(g) {
+
+    clip (temp, green);
+}
+
+void ColorTemp::clip (double &temp, double &green) {
+
+    if (temp < MINTEMP)
+        temp = MINTEMP;
+    else if (temp > MAXTEMP)
+        temp = MAXTEMP;
+        
+    if (green < MINGREEN)
+        green = MINGREEN;
+    else if (green > MAXGREEN)
+        green = MAXGREEN;
+}
+
+void ColorTemp::mul2temp (double rmul, double gmul, double bmul, double& temp, double& green) {
+
+    double maxtemp=20000, mintemp=1000;
+    double tmpr, tmpg, tmpb;
+    temp=(maxtemp+mintemp)/2;
+    while (maxtemp-mintemp>1) {
+	temp2mul (temp, 1.0, tmpr, tmpg, tmpb);
+	if (tmpb/tmpr > bmul/rmul)
+	    maxtemp = temp;
+	else
+	    mintemp = temp;
+        temp=(maxtemp+mintemp)/2;
+    }
+   green = (tmpg/tmpr) / (gmul/rmul);
+   clip (temp, green);
+}
+
+void ColorTemp::temp2mul (double temp, double green, double& rmul, double& gmul, double& bmul) {
+
+   clip (temp, green);
+
+    double xD;
+    if (temp<=4000) {
+        xD = 0.27475e9/(temp*temp*temp) - 0.98598e6/(temp*temp) + 1.17444e3/temp + 0.145986;
+    } else if (temp<=7000) {
+	xD = -4.6070e9/(temp*temp*temp) + 2.9678e6/(temp*temp) + 0.09911e3/temp + 0.244063;
+    } else {
+	xD = -2.0064e9/(temp*temp*temp) + 1.9018e6/(temp*temp) + 0.24748e3/temp + 0.237040;
+    }
+    double yD = -3.0*xD*xD + 2.87*xD - 0.275;
+
+    double X = xD/yD;
+    double Y = 1.0;
+    double Z = (1.0-xD-yD)/yD;
+
+    rmul = X * 3.24071 - Y * 1.53726 - Z * 0.498571;
+    gmul = - X * 0.969258 + Y * 1.87599 + Z * 0.0415557;
+    bmul = X * 0.0556352 - Y * 0.203996 + Z * 1.05707;
+    gmul /= green;
+
+    double max = rmul;
+    if (gmul>max) max = gmul;
+    if (bmul>max) max = bmul;
+    rmul /= max;
+    gmul /= max;
+    bmul /= max;
+}