/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t I m a g e V i e w T h r e a d s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SetImageViewThreads() sets the number of threads in a thread team.
%
% The format of the SetImageViewDescription method is:
%
% void SetImageViewThreads(ImageView *image_view,
% const size_t number_threads)
%
% A description of each parameter follows:
%
% o image_view: the image view.
%
% o number_threads: the number of threads in a thread team.
%
*/
MagickExport void SetImageViewThreads(ImageView *image_view,
const size_t number_threads)
{
assert(image_view != (ImageView *) NULL);
assert(image_view->signature == MagickSignature);
image_view->number_threads=number_threads;
if (number_threads > GetOpenMPMaximumThreads())
image_view->number_threads=GetOpenMPMaximumThreads();
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ A c q u i r e Q u a n t u m P i x e l s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% AcquireQuantumPixels() allocates the unsigned char structure.
%
% The format of the AcquireQuantumPixels method is:
%
% MagickBooleanType AcquireQuantumPixels(QuantumInfo *quantum_info,
% const size_t extent)
%
% A description of each parameter follows:
%
% o quantum_info: the quantum info.
%
% o extent: the quantum info.
%
*/
static MagickBooleanType AcquireQuantumPixels(QuantumInfo *quantum_info,
const size_t extent)
{
register ssize_t
i;
assert(quantum_info != (QuantumInfo *) NULL);
assert(quantum_info->signature == MagickSignature);
quantum_info->number_threads=GetOpenMPMaximumThreads();
quantum_info->pixels=(unsigned char **) AcquireQuantumMemory(
quantum_info->number_threads,sizeof(*quantum_info->pixels));
if (quantum_info->pixels == (unsigned char **) NULL)
return(MagickFalse);
quantum_info->extent=extent;
(void) ResetMagickMemory(quantum_info->pixels,0,
quantum_info->number_threads*sizeof(*quantum_info->pixels));
for (i=0; i < (ssize_t) quantum_info->number_threads; i++)
{
quantum_info->pixels[i]=(unsigned char *) AcquireQuantumMemory(extent+1,
sizeof(**quantum_info->pixels));
if (quantum_info->pixels[i] == (unsigned char *) NULL)
return(MagickFalse);
(void) ResetMagickMemory(quantum_info->pixels[i],0,(extent+1)*
sizeof(**quantum_info->pixels));
quantum_info->pixels[i][extent]=QuantumSignature;
}
return(MagickTrue);
}
MagickExport CacheView *AcquireVirtualCacheView(const Image *image,
ExceptionInfo *exception)
{
CacheView
*restrict cache_view;
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
(void) exception;
cache_view=(CacheView *) MagickAssumeAligned(AcquireAlignedMemory(1,
sizeof(*cache_view)));
if (cache_view == (CacheView *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
(void) ResetMagickMemory(cache_view,0,sizeof(*cache_view));
cache_view->image=ReferenceImage((Image *) image);
cache_view->number_threads=GetOpenMPMaximumThreads();
if (GetMagickResourceLimit(ThreadResource) > cache_view->number_threads)
cache_view->number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
if (cache_view->number_threads == 0)
cache_view->number_threads=1;
cache_view->nexus_info=AcquirePixelCacheNexus(cache_view->number_threads);
cache_view->virtual_pixel_method=GetImageVirtualPixelMethod(image);
cache_view->debug=IsEventLogging();
cache_view->signature=MagickSignature;
if (cache_view->nexus_info == (NexusInfo **) NULL)
ThrowFatalException(CacheFatalError,"UnableToAcquireCacheView");
return(cache_view);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N e w I m a g e V i e w R e g i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NewImageViewRegion() returns a image view required for all other methods
% in the Image View API.
%
% The format of the NewImageViewRegion method is:
%
% ImageView *NewImageViewRegion(MagickCore *wand,const ssize_t x,
% const ssize_t y,const size_t width,const size_t height)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o x,y,columns,rows: These values define the perimeter of a extent of
% pixel_wands view.
%
*/
MagickExport ImageView *NewImageViewRegion(Image *image,const ssize_t x,
const ssize_t y,const size_t width,const size_t height)
{
ImageView
*image_view;
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
image_view=(ImageView *) AcquireMagickMemory(sizeof(*image_view));
if (image_view == (ImageView *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
(void) ResetMagickMemory(image_view,0,sizeof(*image_view));
image_view->description=ConstantString("ImageView");
image_view->view=AcquireCacheView(image_view->image);
image_view->image=image;
image_view->extent.width=width;
image_view->extent.height=height;
image_view->extent.x=x;
image_view->extent.y=y;
image_view->number_threads=GetOpenMPMaximumThreads();
image_view->exception=AcquireExceptionInfo();
image_view->debug=IsEventLogging();
image_view->signature=MagickSignature;
return(image_view);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N e w W a n d V i e w E x t e n t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NewWandViewExtent() returns a wand view required for all other methods
% in the Wand View API.
%
% The format of the NewWandViewExtent method is:
%
% WandView *NewWandViewExtent(MagickWand *wand,const ssize_t x,
% const ssize_t y,const size_t width,const size_t height)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o x,y,columns,rows: These values define the perimeter of a extent of
% pixel_wands view.
%
*/
WandExport WandView *NewWandViewExtent(MagickWand *wand,const ssize_t x,
const ssize_t y,const size_t width,const size_t height)
{
WandView
*wand_view;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == WandSignature);
wand_view=(WandView *) AcquireMagickMemory(sizeof(*wand_view));
if (wand_view == (WandView *) NULL)
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
GetExceptionMessage(errno));
(void) ResetMagickMemory(wand_view,0,sizeof(*wand_view));
wand_view->id=AcquireWandId();
(void) FormatLocaleString(wand_view->name,MaxTextExtent,"%s-%.20g",
WandViewId,(double) wand_view->id);
wand_view->description=ConstantString("WandView");
wand_view->view=AcquireCacheView(wand_view->wand->images);
wand_view->wand=wand;
wand_view->extent.width=width;
wand_view->extent.height=height;
wand_view->extent.x=x;
wand_view->extent.y=y;
wand_view->number_threads=GetOpenMPMaximumThreads();
wand_view->exception=AcquireExceptionInfo();
wand_view->pixel_wands=AcquirePixelsThreadSet(wand_view->extent.width,
wand_view->number_threads);
if (wand_view->pixel_wands == (PixelWand ***) NULL)
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
GetExceptionMessage(errno));
wand_view->debug=IsEventLogging();
wand_view->signature=WandSignature;
return(wand_view);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% C r e a t e M a g i c k T h r e a d K e y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% CreateMagickThreadKey() creates a thread-specific data key visible to all
% threads in the process.
%
% The format of the CreateMagickThreadKey method is:
%
% MagickThreadKey CreateMagickThreadKey(MagickThreadKey *key)
%
% A description of each parameter follows:
%
% o key: opaque objects used to locate thread-specific data.
%
% o destructor: associate an optional destructor with each key value.
%
*/
MagickExport MagickBooleanType CreateMagickThreadKey(MagickThreadKey *key,
void (*destructor)(void *))
{
#if defined(MAGICKCORE_THREAD_SUPPORT)
return(pthread_key_create(key,destructor) == 0 ? MagickTrue : MagickFalse);
#elif defined(MAGICKCORE_WINDOWS_SUPPORT)
magick_unreferenced(destructor);
*key=TlsAlloc();
return(*key != TLS_OUT_OF_INDEXES ? MagickTrue : MagickFalse);
#else
{
MagickThreadValue
**keys;
keys=(MagickThreadValue **) key;
*keys=(MagickThreadValue *) AcquireQuantumMemory(1,sizeof(*keys));
if (*keys != (MagickThreadValue *) NULL)
{
(*keys)->number_threads=GetOpenMPMaximumThreads();
(*keys)->values=AcquireQuantumMemory((*keys)->number_threads,
sizeof(void *));
if ((*keys)->values == (void *) NULL)
*keys=RelinquishMagickMemory(*keys);
else
(void) memset((*keys)->values,0,(*keys)->number_threads*
sizeof(void *));
(*keys)->destructor=destructor;
}
return((*keys != (MagickThreadValue *) NULL) ? MagickTrue : MagickFalse);
}
#endif
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N e w P i x e l V i e w R e g i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NewPixelViewRegion() returns a pixel view required for all other methods
% in the Pixel View API.
%
% The format of the NewPixelViewRegion method is:
%
% PixelView *NewPixelViewRegion(MagickWand *wand,const long x,
% const long y,const unsigned long width,const unsigned long height)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o x,y,columns,rows: These values define the perimeter of a region of
% pixel_wands view.
%
*/
WandExport PixelView *NewPixelViewRegion(MagickWand *wand,const long x,
const long y,const unsigned long width,const unsigned long height)
{
PixelView
*pixel_view;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickSignature);
pixel_view=(PixelView *) AcquireMagickMemory(sizeof(*pixel_view));
if (pixel_view == (PixelView *) NULL)
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
GetExceptionMessage(errno));
(void) ResetMagickMemory(pixel_view,0,sizeof(*pixel_view));
pixel_view->id=AcquireWandId();
(void) FormatMagickString(pixel_view->name,MaxTextExtent,"%s-%lu",
PixelViewId,pixel_view->id);
pixel_view->exception=AcquireExceptionInfo();
pixel_view->view=AcquireCacheView(pixel_view->wand->images);
pixel_view->wand=wand;
pixel_view->region.width=width;
pixel_view->region.height=height;
pixel_view->region.x=x;
pixel_view->region.y=y;
pixel_view->number_threads=GetOpenMPMaximumThreads();
pixel_view->pixel_wands=AcquirePixelsThreadSet(pixel_view->region.width,
pixel_view->number_threads);
if (pixel_view->pixel_wands == (PixelWand ***) NULL)
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
GetExceptionMessage(errno));
pixel_view->debug=IsEventLogging();
pixel_view->signature=WandSignature;
return(pixel_view);
}
MagickPrivate MagickBooleanType ResourceComponentGenesis(void)
{
char
*limit;
MagickSizeType
memory;
ssize_t
files,
pages,
pagesize;
/*
Set Magick resource limits.
*/
AcquireSemaphoreInfo(&resource_semaphore);
pagesize=GetMagickPageSize();
pages=(-1);
#if defined(MAGICKCORE_HAVE_SYSCONF) && defined(_SC_PHYS_PAGES)
pages=(ssize_t) sysconf(_SC_PHYS_PAGES);
#endif
memory=(MagickSizeType) pages*pagesize;
if ((pagesize <= 0) || (pages <= 0))
memory=2048UL*1024UL*1024UL;
#if defined(PixelCacheThreshold)
memory=PixelCacheThreshold;
#endif
(void) SetMagickResourceLimit(AreaResource,2*memory);
(void) SetMagickResourceLimit(MemoryResource,memory);
(void) SetMagickResourceLimit(MapResource,2*memory);
limit=GetEnvironmentValue("MAGICK_AREA_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("area");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(AreaResource,StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
limit=GetEnvironmentValue("MAGICK_MEMORY_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("memory");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(MemoryResource,
StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
limit=GetEnvironmentValue("MAGICK_MAP_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("map");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(MapResource,StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
limit=GetEnvironmentValue("MAGICK_DISK_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("disk");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(DiskResource,StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
files=(-1);
#if defined(MAGICKCORE_HAVE_SYSCONF) && defined(_SC_OPEN_MAX)
files=(ssize_t) sysconf(_SC_OPEN_MAX);
#endif
#if defined(MAGICKCORE_HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE)
if (files < 0)
{
struct rlimit
resources;
if (getrlimit(RLIMIT_NOFILE,&resources) != -1)
files=(ssize_t) resources.rlim_cur;
}
#endif
#if defined(MAGICKCORE_HAVE_GETDTABLESIZE) && defined(MAGICKCORE_POSIX_SUPPORT)
if (files < 0)
files=(ssize_t) getdtablesize();
#endif
if (files < 0)
files=64;
(void) SetMagickResourceLimit(FileResource,MagickMax((size_t)
(3*files/4),64));
limit=GetEnvironmentValue("MAGICK_FILE_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("file");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(FileResource,StringToSizeType(limit,
100.0));
limit=DestroyString(limit);
}
(void) SetMagickResourceLimit(ThreadResource,GetOpenMPMaximumThreads());
limit=GetEnvironmentValue("MAGICK_THREAD_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("thread");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(ThreadResource,StringToSizeType(limit,
100.0));
limit=DestroyString(limit);
}
limit=GetEnvironmentValue("MAGICK_TIME_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("time");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(TimeResource,StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
return(MagickTrue);
}
MagickExport MagickBooleanType SetMagickResourceLimit(const ResourceType type,
const MagickSizeType limit)
{
char
*value;
if (resource_semaphore == (SemaphoreInfo *) NULL)
AcquireSemaphoreInfo(&resource_semaphore);
LockSemaphoreInfo(resource_semaphore);
value=(char *) NULL;
switch (type)
{
case AreaResource:
{
resource_info.area_limit=limit;
value=GetPolicyValue("area");
if (value != (char *) NULL)
resource_info.area_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
case MemoryResource:
{
resource_info.memory_limit=limit;
value=GetPolicyValue("memory");
if (value != (char *) NULL)
resource_info.memory_limit=MagickMin(limit,StringToSizeType(value,
100.0));
break;
}
case MapResource:
{
resource_info.map_limit=limit;
value=GetPolicyValue("map");
if (value != (char *) NULL)
resource_info.map_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
case DiskResource:
{
resource_info.disk_limit=limit;
value=GetPolicyValue("disk");
if (value != (char *) NULL)
resource_info.disk_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
case FileResource:
{
resource_info.file_limit=limit;
value=GetPolicyValue("file");
if (value != (char *) NULL)
resource_info.file_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
case ThreadResource:
{
resource_info.thread_limit=limit;
value=GetPolicyValue("thread");
if (value != (char *) NULL)
resource_info.thread_limit=MagickMin(limit,StringToSizeType(value,
100.0));
if (resource_info.thread_limit > GetOpenMPMaximumThreads())
resource_info.thread_limit=GetOpenMPMaximumThreads();
break;
}
case TimeResource:
{
resource_info.time_limit=limit;
value=GetPolicyValue("time");
if (value != (char *) NULL)
resource_info.time_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
default:
break;
}
if (value != (char *) NULL)
value=DestroyString(value);
UnlockSemaphoreInfo(resource_semaphore);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t I m a g e D e p t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetImageDepth() returns the depth of a particular image channel.
%
% The format of the GetImageDepth method is:
%
% size_t GetImageDepth(const Image *image,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image: the image.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport size_t GetImageDepth(const Image *image,ExceptionInfo *exception)
{
CacheView
*image_view;
MagickBooleanType
status;
register ssize_t
id;
size_t
*current_depth,
depth,
number_threads;
ssize_t
y;
/*
Compute image depth.
*/
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
number_threads=GetOpenMPMaximumThreads();
current_depth=(size_t *) AcquireQuantumMemory(number_threads,
sizeof(*current_depth));
if (current_depth == (size_t *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
status=MagickTrue;
for (id=0; id < (ssize_t) number_threads; id++)
current_depth[id]=1;
if ((image->storage_class == PseudoClass) && (image->matte == MagickFalse))
{
register ssize_t
i;
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static) shared(status)
#endif
for (i=0; i < (ssize_t) image->colors; i++)
{
const int
id = GetOpenMPThreadId();
if (status == MagickFalse)
continue;
while (current_depth[id] < MAGICKCORE_QUANTUM_DEPTH)
{
MagickStatusType
status;
QuantumAny
range;
status=0;
range=GetQuantumRange(current_depth[id]);
if ((GetPixelRedTraits(image) & UpdatePixelTrait) != 0)
status|=ClampToQuantum(image->colormap[i].red) !=
ScaleAnyToQuantum(ScaleQuantumToAny(ClampToQuantum(
image->colormap[i].red),range),range);
if ((GetPixelGreenTraits(image) & UpdatePixelTrait) != 0)
status|=ClampToQuantum(image->colormap[i].green) !=
ScaleAnyToQuantum(ScaleQuantumToAny(ClampToQuantum(
image->colormap[i].green),range),range);
if ((GetPixelBlueTraits(image) & UpdatePixelTrait) != 0)
status|=ClampToQuantum(image->colormap[i].blue) !=
ScaleAnyToQuantum(ScaleQuantumToAny(ClampToQuantum(
image->colormap[i].blue),range),range);
if (status == 0)
break;
current_depth[id]++;
}
}
depth=current_depth[0];
for (id=1; id < (ssize_t) number_threads; id++)
if (depth < current_depth[id])
depth=current_depth[id];
current_depth=(size_t *) RelinquishMagickMemory(current_depth);
return(depth);
}
image_view=AcquireCacheView(image);
#if !defined(MAGICKCORE_HDRI_SUPPORT)
if (QuantumRange <= MaxMap)
{
register ssize_t
i;
size_t
*depth_map;
/*
Scale pixels to desired (optimized with depth map).
*/
depth_map=(size_t *) AcquireQuantumMemory(MaxMap+1,sizeof(*depth_map));
if (depth_map == (size_t *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
for (i=0; i <= (ssize_t) MaxMap; i++)
{
unsigned int
depth;
for (depth=1; depth < MAGICKCORE_QUANTUM_DEPTH; depth++)
{
Quantum
pixel;
QuantumAny
range;
range=GetQuantumRange(depth);
pixel=(Quantum) i;
if (pixel == ScaleAnyToQuantum(ScaleQuantumToAny(pixel,range),range))
break;
}
depth_map[i]=depth;
}
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(status)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
const int
id = GetOpenMPThreadId();
register const Quantum
*restrict p;
register ssize_t
x;
if (status == MagickFalse)
continue;
p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
continue;
for (x=0; x < (ssize_t) image->columns; x++)
{
register ssize_t
i;
if (GetPixelMask(image,p) != 0)
{
p+=GetPixelChannels(image);
continue;
}
for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
{
PixelChannel
channel;
PixelTrait
traits;
channel=GetPixelChannelMapChannel(image,i);
traits=GetPixelChannelMapTraits(image,channel);
if ((traits == UndefinedPixelTrait) ||
(channel == IndexPixelChannel) || (channel == MaskPixelChannel))
continue;
if (depth_map[ScaleQuantumToMap(p[i])] > current_depth[id])
current_depth[id]=depth_map[ScaleQuantumToMap(p[i])];
}
p+=GetPixelChannels(image);
}
if (current_depth[id] == MAGICKCORE_QUANTUM_DEPTH)
status=MagickFalse;
}
image_view=DestroyCacheView(image_view);
depth=current_depth[0];
for (id=1; id < (ssize_t) number_threads; id++)
if (depth < current_depth[id])
depth=current_depth[id];
depth_map=(size_t *) RelinquishMagickMemory(depth_map);
current_depth=(size_t *) RelinquishMagickMemory(current_depth);
return(depth);
}
#endif
/*
Compute pixel depth.
*/
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(status)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
const int
id = GetOpenMPThreadId();
register const Quantum
*restrict p;
register ssize_t
x;
if (status == MagickFalse)
continue;
p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
continue;
for (x=0; x < (ssize_t) image->columns; x++)
{
register ssize_t
i;
if (GetPixelMask(image,p) != 0)
{
p+=GetPixelChannels(image);
continue;
}
for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
{
PixelChannel
channel;
PixelTrait
traits;
channel=GetPixelChannelMapChannel(image,i);
traits=GetPixelChannelMapTraits(image,channel);
if ((traits == UndefinedPixelTrait) || (channel == IndexPixelChannel) ||
(channel == MaskPixelChannel))
continue;
while (current_depth[id] < MAGICKCORE_QUANTUM_DEPTH)
{
QuantumAny
range;
range=GetQuantumRange(current_depth[id]);
if (p[i] == ScaleAnyToQuantum(ScaleQuantumToAny(p[i],range),range))
break;
current_depth[id]++;
}
}
p+=GetPixelChannels(image);
}
if (current_depth[id] == MAGICKCORE_QUANTUM_DEPTH)
status=MagickFalse;
}
image_view=DestroyCacheView(image_view);
depth=current_depth[0];
for (id=1; id < (ssize_t) number_threads; id++)
if (depth < current_depth[id])
depth=current_depth[id];
current_depth=(size_t *) RelinquishMagickMemory(current_depth);
return(depth);
}
MagickExport unsigned long GetImageChannelDepth(const Image *image,
const ChannelType channel,ExceptionInfo *exception)
{
CacheView
*image_view;
long
y;
MagickBooleanType
status;
register long
id;
unsigned long
*current_depth,
depth,
number_threads;
/*
Compute image depth.
*/
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
number_threads=GetOpenMPMaximumThreads();
current_depth=(unsigned long *) AcquireQuantumMemory(number_threads,
sizeof(*current_depth));
if (current_depth == (unsigned long *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
status=MagickTrue;
for (id=0; id < (long) number_threads; id++)
current_depth[id]=1;
if ((image->storage_class == PseudoClass) && (image->matte == MagickFalse))
{
register const PixelPacket
*restrict p;
register long
i;
p=image->colormap;
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(dynamic,4) shared(status)
#endif
for (i=0; i < (long) image->colors; i++)
{
if (status == MagickFalse)
continue;
id=GetOpenMPThreadId();
while (current_depth[id] < MAGICKCORE_QUANTUM_DEPTH)
{
MagickStatusType
status;
QuantumAny
range;
status=0;
range=GetQuantumRange(current_depth[id]);
if ((channel & RedChannel) != 0)
status|=p->red != ScaleAnyToQuantum(ScaleQuantumToAny(p->red,
range),range);
if ((channel & GreenChannel) != 0)
status|=p->green != ScaleAnyToQuantum(ScaleQuantumToAny(p->green,
range),range);
if ((channel & BlueChannel) != 0)
status|=p->blue != ScaleAnyToQuantum(ScaleQuantumToAny(p->blue,
range),range);
if (status == 0)
break;
current_depth[id]++;
}
p++;
}
depth=current_depth[0];
for (id=1; id < (long) number_threads; id++)
if (depth < current_depth[id])
depth=current_depth[id];
current_depth=(unsigned long *) RelinquishMagickMemory(current_depth);
return(depth);
}
image_view=AcquireCacheView(image);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(dynamic,4) shared(status)
#endif
for (y=0; y < (long) image->rows; y++)
{
register const IndexPacket
*restrict indexes;
register const PixelPacket
*restrict p;
register long
id,
x;
if (status == MagickFalse)
continue;
id=GetOpenMPThreadId();
p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
if (p == (const PixelPacket *) NULL)
continue;
indexes=GetCacheViewVirtualIndexQueue(image_view);
for (x=0; x < (long) image->columns; x++)
{
while (current_depth[id] < MAGICKCORE_QUANTUM_DEPTH)
{
MagickStatusType
status;
QuantumAny
range;
status=0;
range=GetQuantumRange(current_depth[id]);
if ((channel & RedChannel) != 0)
status|=p->red != ScaleAnyToQuantum(ScaleQuantumToAny(p->red,range),
range);
if ((channel & GreenChannel) != 0)
status|=p->green != ScaleAnyToQuantum(ScaleQuantumToAny(p->green,
range),range);
if ((channel & BlueChannel) != 0)
status|=p->blue != ScaleAnyToQuantum(ScaleQuantumToAny(p->blue,range),
range);
if (((channel & OpacityChannel) != 0) && (image->matte != MagickFalse))
status|=p->opacity != ScaleAnyToQuantum(ScaleQuantumToAny(p->opacity,
range),range);
if (((channel & IndexChannel) != 0) &&
(image->colorspace == CMYKColorspace))
status|=indexes[x] != ScaleAnyToQuantum(ScaleQuantumToAny(indexes[x],
range),range);
if (status == 0)
break;
current_depth[id]++;
}
p++;
}
if (current_depth[id] == MAGICKCORE_QUANTUM_DEPTH)
status=MagickFalse;
}
image_view=DestroyCacheView(image_view);
depth=current_depth[0];
for (id=1; id < (long) number_threads; id++)
if (depth < current_depth[id])
depth=current_depth[id];
current_depth=(unsigned long *) RelinquishMagickMemory(current_depth);
return(depth);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t I m a g e D e p t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetImageDepth() returns the depth of a particular image channel.
%
% The format of the GetImageDepth method is:
%
% size_t GetImageDepth(const Image *image,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image: the image.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport size_t GetImageDepth(const Image *image,
ExceptionInfo *exception)
{
CacheView
*image_view;
MagickBooleanType
status;
register ssize_t
id;
size_t
*current_depth,
depth,
number_threads;
ssize_t
y;
/*
Compute image depth.
*/
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
number_threads=GetOpenMPMaximumThreads();
current_depth=(size_t *) AcquireQuantumMemory(number_threads,
sizeof(*current_depth));
if (current_depth == (size_t *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
status=MagickTrue;
for (id=0; id < (ssize_t) number_threads; id++)
current_depth[id]=1;
if ((image->storage_class == PseudoClass) && (image->matte == MagickFalse))
{
register const PixelInfo
*restrict p;
register ssize_t
i;
p=image->colormap;
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(status)
#endif
for (i=0; i < (ssize_t) image->colors; i++)
{
const int
id = GetOpenMPThreadId();
if (status == MagickFalse)
continue;
while (current_depth[id] < MAGICKCORE_QUANTUM_DEPTH)
{
MagickStatusType
status;
QuantumAny
range;
status=0;
range=GetQuantumRange(current_depth[id]);
if ((GetPixelRedTraits(image) & UpdatePixelTrait) != 0)
status|=p->red != ScaleAnyToQuantum(ScaleQuantumToAny(p->red,
range),range);
if ((GetPixelGreenTraits(image) & UpdatePixelTrait) != 0)
status|=p->green != ScaleAnyToQuantum(ScaleQuantumToAny(p->green,
range),range);
if ((GetPixelBlueTraits(image) & UpdatePixelTrait) != 0)
status|=p->blue != ScaleAnyToQuantum(ScaleQuantumToAny(p->blue,
range),range);
if (status == 0)
break;
current_depth[id]++;
}
p++;
}
depth=current_depth[0];
for (id=1; id < (ssize_t) number_threads; id++)
if (depth < current_depth[id])
depth=current_depth[id];
current_depth=(size_t *) RelinquishMagickMemory(current_depth);
return(depth);
}
image_view=AcquireCacheView(image);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(status)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
const int
id = GetOpenMPThreadId();
register const Quantum
*restrict p;
register ssize_t
x;
if (status == MagickFalse)
continue;
p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
continue;
for (x=0; x < (ssize_t) image->columns; x++)
{
register ssize_t
i;
for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
{
PixelChannel
channel;
PixelTrait
traits;
channel=GetPixelChannelMapChannel(image,i);
traits=GetPixelChannelMapTraits(image,channel);
if (traits == UndefinedPixelTrait)
continue;
while (current_depth[id] < MAGICKCORE_QUANTUM_DEPTH)
{
MagickStatusType
status;
QuantumAny
range;
status=0;
range=GetQuantumRange(current_depth[id]);
status|=p[i] != ScaleAnyToQuantum(ScaleQuantumToAny(p[i],range),
range);
if (status == 0)
break;
current_depth[id]++;
}
}
p+=GetPixelChannels(image);
}
if (current_depth[id] == MAGICKCORE_QUANTUM_DEPTH)
status=MagickFalse;
}
image_view=DestroyCacheView(image_view);
depth=current_depth[0];
for (id=1; id < (ssize_t) number_threads; id++)
if (depth < current_depth[id])
depth=current_depth[id];
current_depth=(size_t *) RelinquishMagickMemory(current_depth);
return(depth);
}
