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[imagemagick] / MagickCore / colormap.c

diff --git a/MagickCore/colormap.c b/MagickCore/colormap.c
index 92c46be42cdfb93cac4d3ccc02da6c0765e81e59..8ac95f68e277ecbd23f0e79abcd6f9325887caa7 100644 (file)
--- a/MagickCore/colormap.c
+++ b/MagickCore/colormap.c
@@ -42,6 +42,7 @@
   Include declarations.
 */
 #include "MagickCore/studio.h"
+#include "MagickCore/attribute.h"
 #include "MagickCore/blob.h"
 #include "MagickCore/cache-view.h"
 #include "MagickCore/cache.h"
@@ -62,8 +63,10 @@
 #include "MagickCore/pixel-accessor.h"
 #include "MagickCore/quantize.h"
 #include "MagickCore/quantum.h"
+#include "MagickCore/resource_.h"
 #include "MagickCore/semaphore.h"
 #include "MagickCore/string_.h"
+#include "MagickCore/thread-private.h"
 #include "MagickCore/token.h"
 #include "MagickCore/utility.h"
 #include "MagickCore/xml-tree.h"
@@ -136,13 +139,15 @@ MagickExport MagickBooleanType AcquireImageColormap(Image *image,
       image->filename);
   for (i=0; i < (ssize_t) image->colors; i++)
   {
-    size_t
+    double
       pixel;
 
-    pixel=(size_t) (i*(QuantumRange/MagickMax(colors-1,1)));
-    image->colormap[i].red=(Quantum) pixel;
-    image->colormap[i].green=(Quantum) pixel;
-    image->colormap[i].blue=(Quantum) pixel;
+    pixel=(double) (i*(QuantumRange/MagickMax(colors-1,1)));
+    GetPixelInfo(image,image->colormap+i);
+    image->colormap[i].alpha_trait=BlendPixelTrait;
+    image->colormap[i].red=pixel;
+    image->colormap[i].green=pixel;
+    image->colormap[i].blue=pixel;
     image->colormap[i].alpha=OpaqueAlpha;
   }
   return(SetImageStorageClass(image,PseudoClass,exception));
@@ -199,9 +204,10 @@ MagickExport MagickBooleanType CycleColormapImage(Image *image,
   if (image->storage_class == DirectClass)
     (void) SetImageType(image,PaletteType,exception);
   status=MagickTrue;
-  image_view=AcquireCacheView(image);
-#if defined(MAGICKCORE_OPENMP_SUPPORT) 
-  #pragma omp parallel for schedule(static,4) shared(status)
+  image_view=AcquireAuthenticCacheView(image,exception);
+#if defined(MAGICKCORE_OPENMP_SUPPORT) && defined(NoBenefitFromParallelism)
+  #pragma omp parallel for schedule(static,4) shared(status) \
+    dynamic_number_threads(image,image->columns,image->rows,1)
 #endif
   for (y=0; y < (ssize_t) image->rows; y++)
   {
@@ -325,10 +331,11 @@ MagickExport MagickBooleanType SortColormapByIntensity(Image *image,
     Assign index values to colormap entries.
   */
 #if defined(MAGICKCORE_OPENMP_SUPPORT)
-  #pragma omp parallel for schedule(static,4) shared(status)
+  #pragma omp parallel for schedule(static,4) shared(status) \
+    dynamic_number_threads(image,image->columns,1,1)
 #endif
   for (i=0; i < (ssize_t) image->colors; i++)
-    image->colormap[i].alpha=(Quantum) i;
+    image->colormap[i].alpha=(double) i;
   /*
     Sort image colormap by decreasing color popularity.
   */
@@ -343,7 +350,7 @@ MagickExport MagickBooleanType SortColormapByIntensity(Image *image,
   for (i=0; i < (ssize_t) image->colors; i++)
     pixels[(ssize_t) image->colormap[i].alpha]=(unsigned short) i;
   status=MagickTrue;
-  image_view=AcquireCacheView(image);
+  image_view=AcquireAuthenticCacheView(image,exception);
   for (y=0; y < (ssize_t) image->rows; y++)
   {
     Quantum