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[imagemagick] / MagickCore / accelerate.c

diff --git a/MagickCore/accelerate.c b/MagickCore/accelerate.c
index 144e8c4db12dcd7eec92319b3a956baff19a069d..0ab5f102a97fcff21d17013de2c69fb518e4ad18 100644 (file)
--- a/MagickCore/accelerate.c
+++ b/MagickCore/accelerate.c
@@ -195,6 +195,13 @@ static const char
     "#endif\n"
     "}\n"
     "\n"
+    "static inline float MagickEpsilonReciprocal(const float x)\n"
+    "{\n"
+    "  float sign = x < (float) 0.0 ? (float) -1.0 : (float) 1.0;\n"
+    "  return((sign*x) >= MagickEpsilon ? (float) 1.0/x : sign*((float) 1.0/\n"
+    "    MagickEpsilon));\n"
+    "}\n"
+    "\n"
     "__kernel void Convolve(const __global CLPixelType *input,\n"
     "  __constant float *filter,const unsigned long width,const unsigned long height,\n"
     "  const unsigned int matte,__global CLPixelType *output)\n"
@@ -295,7 +302,7 @@ static const char
     "      break;\n"
     "    }\n"
     "  }\n"
-    "  gamma=1.0/(fabs(gamma) <= MagickEpsilon ? 1.0 : gamma);\n"
+    "  gamma=MagickEpsilonReciprocal(gamma);\n"
     "  const unsigned long index = y*columns+x;\n"
     "  output[index].x=ClampToQuantum(gamma*sum.x);\n"
     "  output[index].y=ClampToQuantum(gamma*sum.y);\n"
@@ -316,7 +323,7 @@ static void ConvolveNotify(const char *message,const void *data,size_t length,
   (void) length;
   exception=(ExceptionInfo *) user_context;
   (void) ThrowMagickException(exception,GetMagickModule(),DelegateWarning,
-    "DelegateFailed","`%s'",message);
+    "DelegateFailed","'%s'",message);
 }
 
 static MagickBooleanType BindConvolveParameters(ConvolveInfo *convolve_info,
@@ -496,7 +503,7 @@ static ConvolveInfo *GetConvolveInfo(const Image *image,const char *name,
   if (convolve_info == (ConvolveInfo *) NULL)
     {
       (void) ThrowMagickException(exception,GetMagickModule(),
-        ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename);
+        ResourceLimitError,"MemoryAllocationFailed","'%s'",image->filename);
       return((ConvolveInfo *) NULL);
     }
   (void) ResetMagickMemory(convolve_info,0,sizeof(*convolve_info));
@@ -509,7 +516,7 @@ static ConvolveInfo *GetConvolveInfo(const Image *image,const char *name,
   if (status != CL_SUCCESS)
     {
       (void) ThrowMagickException(exception,GetMagickModule(),DelegateWarning,
-        "failed to create OpenCL context","`%s' (%d)",image->filename,status);
+        "failed to create OpenCL context","'%s' (%d)",image->filename,status);
       convolve_info=DestroyConvolveInfo(convolve_info);
       return((ConvolveInfo *) NULL);
     }
@@ -527,7 +534,7 @@ static ConvolveInfo *GetConvolveInfo(const Image *image,const char *name,
   if ((convolve_info->context == (cl_context) NULL) || (status != CL_SUCCESS))
     {
       (void) ThrowMagickException(exception,GetMagickModule(),DelegateWarning,
-        "failed to create OpenCL context","`%s' (%d)",image->filename,status);
+        "failed to create OpenCL context","'%s' (%d)",image->filename,status);
       convolve_info=DestroyConvolveInfo(convolve_info);
       return((ConvolveInfo *) NULL);
     }
@@ -545,7 +552,7 @@ static ConvolveInfo *GetConvolveInfo(const Image *image,const char *name,
   if (convolve_info->devices == (cl_device_id *) NULL)
     {
       (void) ThrowMagickException(exception,GetMagickModule(),
-        ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename);
+        ResourceLimitError,"MemoryAllocationFailed","'%s'",image->filename);
       convolve_info=DestroyConvolveInfo(convolve_info);
       return((ConvolveInfo *) NULL);
     }
@@ -630,7 +637,7 @@ static ConvolveInfo *GetConvolveInfo(const Image *image,const char *name,
       status=clGetProgramBuildInfo(convolve_info->program,
         convolve_info->devices[0],CL_PROGRAM_BUILD_LOG,length,log,&length);
       (void) ThrowMagickException(exception,GetMagickModule(),DelegateWarning,
-        "failed to build OpenCL program","`%s' (%s)",image->filename,log);
+        "failed to build OpenCL program","'%s' (%s)",image->filename,log);
       log=DestroyString(log);
       convolve_info=DestroyConvolveInfo(convolve_info);
       return((ConvolveInfo *) NULL);
@@ -703,7 +710,7 @@ MagickExport MagickBooleanType AccelerateConvolveImage(const Image *image,
       {
         convolve_info=DestroyConvolveInfo(convolve_info);
         (void) ThrowMagickException(exception,GetMagickModule(),CacheError,
-          "UnableToReadPixelCache","`%s'",image->filename);
+          "UnableToReadPixelCache","'%s'",image->filename);
         return(MagickFalse);
       }
     convolve_pixels=GetPixelCachePixels(convolve_image,&length,exception);
@@ -711,7 +718,7 @@ MagickExport MagickBooleanType AccelerateConvolveImage(const Image *image,
       {
         convolve_info=DestroyConvolveInfo(convolve_info);
         (void) ThrowMagickException(exception,GetMagickModule(),CacheError,
-          "UnableToReadPixelCache","`%s'",image->filename);
+          "UnableToReadPixelCache","'%s'",image->filename);
         return(MagickFalse);
       }
     filter=(float *) AcquireQuantumMemory(kernel->width,kernel->height*
@@ -721,7 +728,7 @@ MagickExport MagickBooleanType AccelerateConvolveImage(const Image *image,
         DestroyConvolveBuffers(convolve_info);
         convolve_info=DestroyConvolveInfo(convolve_info);
         (void) ThrowMagickException(exception,GetMagickModule(),
-          ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename);
+          ResourceLimitError,"MemoryAllocationFailed","'%s'",image->filename);
         return(MagickFalse);
       }
     for (i=0; i < (ssize_t) (kernel->width*kernel->height); i++)