(no commit message)

[imagemagick] / MagickCore / colorspace-private.h

diff --git a/MagickCore/colorspace-private.h b/MagickCore/colorspace-private.h
index d1c5e22f287141ab164183e59c15911c8a2e92a3..7dfb8fda3389cc8f2bcf33e1a34ba1e6e98078a2 100644 (file)
--- a/MagickCore/colorspace-private.h
+++ b/MagickCore/colorspace-private.h
@@ -1,5 +1,5 @@
 /*
-  Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization
+  Copyright 1999-2014 ImageMagick Studio LLC, a non-profit organization
   dedicated to making software imaging solutions freely available.
   
   You may not use this file except in compliance with the License.
@@ -18,32 +18,47 @@
 #ifndef _MAGICKCORE_COLORSPACE_PRIVATE_H
 #define _MAGICKCORE_COLORSPACE_PRIVATE_H
 
+#include "MagickCore/image.h"
+#include "MagickCore/image-private.h"
+#include "MagickCore/pixel.h"
+#include "MagickCore/pixel-accessor.h"
+
 #if defined(__cplusplus) || defined(c_plusplus)
 extern "C" {
 #endif
 
-#include <MagickCore/image.h>
-#include <MagickCore/image-private.h>
-#include <MagickCore/pixel.h>
-
-static inline void ConvertsRGBToCMYK(PixelInfo *pixel)
+static inline void ConvertRGBToCMYK(PixelInfo *pixel)
 {
   MagickRealType
     black,
+    blue,
     cyan,
+    green,
     magenta,
+    red,
     yellow;
                                                                                 
-  if ((fabs(pixel->red) < MagickEpsilon) &&
-      (fabs(pixel->green) < MagickEpsilon) &&
-      (fabs(pixel->blue) < MagickEpsilon))
+  if (pixel->colorspace != sRGBColorspace)
+    {
+      red=QuantumScale*pixel->red;
+      green=QuantumScale*pixel->green;
+      blue=QuantumScale*pixel->blue;
+    }
+  else
+    {
+      red=DecodePixelGamma(pixel->red);
+      green=DecodePixelGamma(pixel->green);
+      blue=DecodePixelGamma(pixel->blue);
+    }
+  if ((fabs(red) < MagickEpsilon) && (fabs(green) < MagickEpsilon) &&
+      (fabs(blue) < MagickEpsilon))
     {
       pixel->black=(MagickRealType) QuantumRange;
       return;
     }
-  cyan=(MagickRealType) (1.0-QuantumScale*pixel->red);
-  magenta=(MagickRealType) (1.0-QuantumScale*pixel->green);
-  yellow=(MagickRealType) (1.0-QuantumScale*pixel->blue);
+  cyan=(MagickRealType) (1.0-red);
+  magenta=(MagickRealType) (1.0-green);
+  yellow=(MagickRealType) (1.0-blue);
   black=cyan;
   if (magenta < black)
     black=magenta;
@@ -59,6 +74,47 @@ static inline void ConvertsRGBToCMYK(PixelInfo *pixel)
   pixel->black=QuantumRange*black;
 }
 
+static inline MagickBooleanType IsCMYKColorspace(
+  const ColorspaceType colorspace)
+{
+  if (colorspace == CMYKColorspace)
+    return(MagickTrue);
+  return(MagickFalse);
+}
+
+static inline MagickBooleanType IsGrayColorspace(
+  const ColorspaceType colorspace)
+{
+  if (colorspace == GRAYColorspace)
+    return(MagickTrue);
+  return(MagickFalse);
+}
+
+static inline MagickBooleanType IsRGBColorspace(const ColorspaceType colorspace)
+{
+  if ((colorspace == RGBColorspace) || (colorspace == scRGBColorspace))
+    return(MagickTrue);
+  return(MagickFalse);
+}
+
+static inline MagickBooleanType IssRGBColorspace(
+  const ColorspaceType colorspace)
+{
+  if ((colorspace == sRGBColorspace) || (colorspace == TransparentColorspace))
+    return(MagickTrue);
+  return(MagickFalse);
+}
+
+static inline MagickBooleanType IssRGBCompatibleColorspace(
+  const ColorspaceType colorspace)
+{
+  if ((colorspace == sRGBColorspace) || (colorspace == RGBColorspace) ||
+      (colorspace == scRGBColorspace) || 
+      (IsGrayColorspace(colorspace) != MagickFalse))
+    return(MagickTrue);
+  return(MagickFalse);
+}
+
 #if defined(__cplusplus) || defined(c_plusplus)
 }
 #endif