Add the full source of BambuStudio

using version 1.0.10

src/agg/agg_gamma_functions.h

@@ -0,0 +1,132 @@
+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.4
+// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
+//
+// Permission to copy, use, modify, sell and distribute this software 
+// is granted provided this copyright notice appears in all copies. 
+// This software is provided "as is" without express or implied
+// warranty, and with no claim as to its suitability for any purpose.
+//
+//----------------------------------------------------------------------------
+// Contact: mcseem@antigrain.com
+//          mcseemagg@yahoo.com
+//          http://www.antigrain.com
+//----------------------------------------------------------------------------
+
+#ifndef AGG_GAMMA_FUNCTIONS_INCLUDED
+#define AGG_GAMMA_FUNCTIONS_INCLUDED
+
+#include <math.h>
+#include "agg_basics.h"
+
+namespace agg
+{
+    //===============================================================gamma_none
+    struct gamma_none
+    {
+        double operator()(double x) const { return x; }
+    };
+
+
+    //==============================================================gamma_power
+    class gamma_power
+    {
+    public:
+        gamma_power() : m_gamma(1.0) {}
+        gamma_power(double g) : m_gamma(g) {}
+
+        void gamma(double g) { m_gamma = g; }
+        double gamma() const { return m_gamma; }
+
+        double operator() (double x) const
+        {
+            return pow(x, m_gamma);
+        }
+
+    private:
+        double m_gamma;
+    };
+
+
+    //==========================================================gamma_threshold
+    class gamma_threshold
+    {
+    public:
+        gamma_threshold() : m_threshold(0.5) {}
+        gamma_threshold(double t) : m_threshold(t) {}
+
+        void threshold(double t) { m_threshold = t; }
+        double threshold() const { return m_threshold; }
+
+        double operator() (double x) const
+        {
+            return (x < m_threshold) ? 0.0 : 1.0;
+        }
+
+    private:
+        double m_threshold;
+    };
+
+
+    //============================================================gamma_linear
+    class gamma_linear
+    {
+    public:
+        gamma_linear() : m_start(0.0), m_end(1.0) {}
+        gamma_linear(double s, double e) : m_start(s), m_end(e) {}
+
+        void set(double s, double e) { m_start = s; m_end = e; }
+        void start(double s) { m_start = s; }
+        void end(double e) { m_end = e; }
+        double start() const { return m_start; }
+        double end() const { return m_end; }
+
+        double operator() (double x) const
+        {
+            if(x < m_start) return 0.0;
+            if(x > m_end) return 1.0;
+            return (x - m_start) / (m_end - m_start);
+        }
+
+    private:
+        double m_start;
+        double m_end;
+    };
+
+
+    //==========================================================gamma_multiply
+    class gamma_multiply
+    {
+    public:
+        gamma_multiply() : m_mul(1.0) {}
+        gamma_multiply(double v) : m_mul(v) {}
+
+        void value(double v) { m_mul = v; }
+        double value() const { return m_mul; }
+
+        double operator() (double x) const
+        {
+            double y = x * m_mul;
+            if(y > 1.0) y = 1.0;
+            return y;
+        }
+
+    private:
+        double m_mul;
+    };
+
+    inline double sRGB_to_linear(double x)
+    {
+        return (x <= 0.04045) ? (x / 12.92) : pow((x + 0.055) / (1.055), 2.4);
+    }
+
+    inline double linear_to_sRGB(double x)
+    {
+        return (x <= 0.0031308) ? (x * 12.92) : (1.055 * pow(x, 1 / 2.4) - 0.055);
+    }
+}
+
+#endif
+
+
+