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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% AAA CCCC CCCC EEEEE L EEEEE RRRR AAA TTTTT EEEEE %
% A A C C E L E R R A A T E %
% AAAAA C C EEE L EEE RRRR AAAAA T EEE %
% A A C C E L E R R A A T E %
% A A CCCC CCCC EEEEE LLLLL EEEEE R R A A T EEEEE %
% %
% %
% MagickCore Acceleration Methods %
% %
% Software Design %
% Cristy %
% SiuChi Chan %
% Guansong Zhang %
% January 2010 %
% Dirk Lemstra %
% April 2016 %
% %
% %
% Copyright 1999-2019 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. You may %
% obtain a copy of the License at %
% %
% https://imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
% See the License for the specific language governing permissions and %
% limitations under the License. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
/*
Include declarations.
*/
#include "MagickCore/studio.h"
#include "MagickCore/accelerate-private.h"
#include "MagickCore/accelerate-kernels-private.h"
#include "MagickCore/artifact.h"
#include "MagickCore/cache.h"
#include "MagickCore/cache-private.h"
#include "MagickCore/cache-view.h"
#include "MagickCore/color-private.h"
#include "MagickCore/delegate-private.h"
#include "MagickCore/enhance.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/gem.h"
#include "MagickCore/image.h"
#include "MagickCore/image-private.h"
#include "MagickCore/linked-list.h"
#include "MagickCore/list.h"
#include "MagickCore/memory_.h"
#include "MagickCore/monitor-private.h"
#include "MagickCore/opencl.h"
#include "MagickCore/opencl-private.h"
#include "MagickCore/option.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/pixel-private.h"
#include "MagickCore/prepress.h"
#include "MagickCore/quantize.h"
#include "MagickCore/quantum-private.h"
#include "MagickCore/random_.h"
#include "MagickCore/random-private.h"
#include "MagickCore/registry.h"
#include "MagickCore/resize.h"
#include "MagickCore/resize-private.h"
#include "MagickCore/semaphore.h"
#include "MagickCore/splay-tree.h"
#include "MagickCore/statistic.h"
#include "MagickCore/string_.h"
#include "MagickCore/string-private.h"
#include "MagickCore/token.h"
#define MAGICK_MAX(x,y) (((x) >= (y))?(x):(y))
#define MAGICK_MIN(x,y) (((x) <= (y))?(x):(y))
#if defined(MAGICKCORE_OPENCL_SUPPORT)
/*
Define declarations.
*/
#define ALIGNED(pointer,type) ((((size_t)(pointer)) & (sizeof(type)-1)) == 0)
/*
Static declarations.
*/
static const ResizeWeightingFunctionType supportedResizeWeighting[] =
{
BoxWeightingFunction,
TriangleWeightingFunction,
HannWeightingFunction,
HammingWeightingFunction,
BlackmanWeightingFunction,
CubicBCWeightingFunction,
SincWeightingFunction,
SincFastWeightingFunction,
LastWeightingFunction
};
/*
Helper functions.
*/
static MagickBooleanType checkAccelerateCondition(const Image* image)
{
/* only direct class images are supported */
if (image->storage_class != DirectClass)
return(MagickFalse);
/* check if the image's colorspace is supported */
if (image->colorspace != RGBColorspace &&
image->colorspace != sRGBColorspace &&
image->colorspace != LinearGRAYColorspace &&
image->colorspace != GRAYColorspace)
return(MagickFalse);
/* check if the virtual pixel method is compatible with the OpenCL implementation */
if ((GetImageVirtualPixelMethod(image) != UndefinedVirtualPixelMethod) &&
(GetImageVirtualPixelMethod(image) != EdgeVirtualPixelMethod))
return(MagickFalse);
/* check if the image has mask */
if (((image->channels & ReadMaskChannel) != 0) ||
((image->channels & WriteMaskChannel) != 0) ||
((image->channels & CompositeMaskChannel) != 0))
return(MagickFalse);
if (image->number_channels > 4)
return(MagickFalse);
/* check if pixel order is R */
if (GetPixelChannelOffset(image,RedPixelChannel) != 0)
return(MagickFalse);
if (image->number_channels == 1)
return(MagickTrue);
/* check if pixel order is RA */
if ((image->number_channels == 2) &&
(GetPixelChannelOffset(image,AlphaPixelChannel) == 1))
return(MagickTrue);
if (image->number_channels == 2)
return(MagickFalse);
/* check if pixel order is RGB */
if ((GetPixelChannelOffset(image,GreenPixelChannel) != 1) ||
(GetPixelChannelOffset(image,BluePixelChannel) != 2))
return(MagickFalse);
if (image->number_channels == 3)
return(MagickTrue);
/* check if pixel order is RGBA */
if (GetPixelChannelOffset(image,AlphaPixelChannel) != 3)
return(MagickFalse);
return(MagickTrue);
}
static MagickBooleanType checkAccelerateConditionRGBA(const Image* image)
{
if (checkAccelerateCondition(image) == MagickFalse)
return(MagickFalse);
/* the order will be RGBA if the image has 4 channels */
if (image->number_channels != 4)
return(MagickFalse);
if ((GetPixelRedTraits(image) == UndefinedPixelTrait) ||
(GetPixelGreenTraits(image) == UndefinedPixelTrait) ||
(GetPixelBlueTraits(image) == UndefinedPixelTrait) ||
(GetPixelAlphaTraits(image) == UndefinedPixelTrait))
return(MagickFalse);
return(MagickTrue);
}
static MagickBooleanType checkPixelIntensity(const Image *image,
const PixelIntensityMethod method)
{
/* EncodePixelGamma and DecodePixelGamma are not supported */
if ((method == Rec601LumaPixelIntensityMethod) ||
(method == Rec709LumaPixelIntensityMethod))
{
if (image->colorspace == RGBColorspace)
return(MagickFalse);
}
if ((method == Rec601LuminancePixelIntensityMethod) ||
(method == Rec709LuminancePixelIntensityMethod))
{
if (image->colorspace == sRGBColorspace)
return(MagickFalse);
}
return(MagickTrue);
}
static MagickBooleanType checkHistogramCondition(const Image *image,
const PixelIntensityMethod method)
{
/* ensure this is the only pass get in for now. */
if ((image->channel_mask & SyncChannels) == 0)
return MagickFalse;
return(checkPixelIntensity(image,method));
}
static MagickCLEnv getOpenCLEnvironment(ExceptionInfo* exception)
{
MagickCLEnv
clEnv;
clEnv=GetCurrentOpenCLEnv();
if (clEnv == (MagickCLEnv) NULL)
return((MagickCLEnv) NULL);
if (clEnv->enabled == MagickFalse)
return((MagickCLEnv) NULL);
if (InitializeOpenCL(clEnv,exception) == MagickFalse)
return((MagickCLEnv) NULL);
return(clEnv);
}
static Image *cloneImage(const Image* image,ExceptionInfo *exception)
{
Image
*clone;
if (((image->channel_mask & RedChannel) != 0) &&
((image->channel_mask & GreenChannel) != 0) &&
((image->channel_mask & BlueChannel) != 0) &&
((image->channel_mask & AlphaChannel) != 0))
clone=CloneImage(image,0,0,MagickTrue,exception);
else
{
clone=CloneImage(image,0,0,MagickTrue,exception);
if (clone != (Image *) NULL)
SyncImagePixelCache(clone,exception);
}
return(clone);
}
/* pad the global workgroup size to the next multiple of
the local workgroup size */
inline static unsigned int padGlobalWorkgroupSizeToLocalWorkgroupSize(
const unsigned int orgGlobalSize,const unsigned int localGroupSize)
{
return ((orgGlobalSize+(localGroupSize-1))/localGroupSize*localGroupSize);
}
static cl_mem createKernelInfo(MagickCLDevice device,const double radius,
const double sigma,cl_uint *width,ExceptionInfo *exception)
{
char
geometry[MagickPathExtent];
cl_mem
imageKernelBuffer;
float
*kernelBufferPtr;
KernelInfo
*kernel;
ssize_t
i;
(void) FormatLocaleString(geometry,MagickPathExtent,
"blur:%.20gx%.20g;blur:%.20gx%.20g+90",radius,sigma,radius,sigma);
kernel=AcquireKernelInfo(geometry,exception);
if (kernel == (KernelInfo *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"AcquireKernelInfo failed.",".");
return((cl_mem) NULL);
}
kernelBufferPtr=(float *)AcquireMagickMemory(kernel->width*
sizeof(*kernelBufferPtr));
if (kernelBufferPtr == (float *) NULL)
{
kernel=DestroyKernelInfo(kernel);
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"MemoryAllocationFailed.",".");
return((cl_mem) NULL);
}
for (i = 0; i < (ssize_t) kernel->width; i++)
kernelBufferPtr[i] = (float)kernel->values[i];
imageKernelBuffer=CreateOpenCLBuffer(device,CL_MEM_COPY_HOST_PTR |
CL_MEM_READ_ONLY,kernel->width*sizeof(*kernelBufferPtr),kernelBufferPtr);
*width=(cl_uint) kernel->width;
kernelBufferPtr=(float *) RelinquishMagickMemory(kernelBufferPtr);
kernel=DestroyKernelInfo(kernel);
if (imageKernelBuffer == (cl_mem) NULL)
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"CreateOpenCLBuffer failed.",".");
return(imageKernelBuffer);
}
static MagickBooleanType LaunchHistogramKernel(MagickCLEnv clEnv,
MagickCLDevice device,cl_command_queue queue,cl_mem imageBuffer,
cl_mem histogramBuffer,Image *image,const ChannelType channel,
ExceptionInfo *exception)
{
MagickBooleanType
outputReady;
cl_int
clStatus;
cl_kernel
histogramKernel;
cl_event
event;
cl_uint
colorspace,
method;
register ssize_t
i;
size_t
global_work_size[2];
histogramKernel = NULL;
outputReady = MagickFalse;
colorspace = image->colorspace;
method = image->intensity;
/* get the OpenCL kernel */
histogramKernel = AcquireOpenCLKernel(device,"Histogram");
if (histogramKernel == NULL)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "AcquireOpenCLKernel failed.", ".");
goto cleanup;
}
/* set the kernel arguments */
i = 0;
clStatus=clEnv->library->clSetKernelArg(histogramKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
clStatus|=clEnv->library->clSetKernelArg(histogramKernel,i++,sizeof(ChannelType),&channel);
clStatus|=clEnv->library->clSetKernelArg(histogramKernel,i++,sizeof(cl_uint),&colorspace);
clStatus|=clEnv->library->clSetKernelArg(histogramKernel,i++,sizeof(cl_uint),&method);
clStatus|=clEnv->library->clSetKernelArg(histogramKernel,i++,sizeof(cl_mem),(void *)&histogramBuffer);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
/* launch the kernel */
global_work_size[0] = image->columns;
global_work_size[1] = image->rows;
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, histogramKernel, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,histogramKernel,event);
outputReady = MagickTrue;
cleanup:
if (histogramKernel!=NULL)
ReleaseOpenCLKernel(histogramKernel);
return(outputReady);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e A d d N o i s e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static Image *ComputeAddNoiseImage(const Image *image,MagickCLEnv clEnv,
const NoiseType noise_type,const double attenuate,ExceptionInfo *exception)
{
cl_command_queue
queue;
cl_float
cl_attenuate;
cl_int
status;
cl_kernel
addNoiseKernel;
cl_mem
filteredImageBuffer,
imageBuffer;
cl_uint
bufferLength,
inputPixelCount,
number_channels,
numRandomNumberPerPixel,
pixelsPerWorkitem,
seed0,
seed1,
workItemCount;
const unsigned long
*s;
MagickBooleanType
outputReady;
MagickCLDevice
device;
Image
*filteredImage;
RandomInfo
*randomInfo;
size_t
gsize[1],
i,
lsize[1],
numRandPerChannel;
filteredImage=NULL;
imageBuffer=NULL;
filteredImageBuffer=NULL;
addNoiseKernel=NULL;
outputReady=MagickFalse;
device=RequestOpenCLDevice(clEnv);
queue=AcquireOpenCLCommandQueue(device);
if (queue == (cl_command_queue) NULL)
goto cleanup;
filteredImage=cloneImage(image,exception);
if (filteredImage == (Image *) NULL)
goto cleanup;
if (filteredImage->number_channels != image->number_channels)
goto cleanup;
imageBuffer=GetAuthenticOpenCLBuffer(image,device,exception);
if (imageBuffer == (cl_mem) NULL)
goto cleanup;
filteredImageBuffer=GetAuthenticOpenCLBuffer(filteredImage,device,exception);
if (filteredImageBuffer == (cl_mem) NULL)
goto cleanup;
/* find out how many random numbers needed by pixel */
numRandPerChannel=0;
numRandomNumberPerPixel=0;
switch (noise_type)
{
case UniformNoise:
case ImpulseNoise:
case LaplacianNoise:
case RandomNoise:
default:
numRandPerChannel=1;
break;
case GaussianNoise:
case MultiplicativeGaussianNoise:
case PoissonNoise:
numRandPerChannel=2;
break;
};
if (GetPixelRedTraits(image) != UndefinedPixelTrait)
numRandomNumberPerPixel+=(cl_uint) numRandPerChannel;
if (GetPixelGreenTraits(image) != UndefinedPixelTrait)
numRandomNumberPerPixel+=(cl_uint) numRandPerChannel;
if (GetPixelBlueTraits(image) != UndefinedPixelTrait)
numRandomNumberPerPixel+=(cl_uint) numRandPerChannel;
if (GetPixelAlphaTraits(image) != UndefinedPixelTrait)
numRandomNumberPerPixel+=(cl_uint) numRandPerChannel;
addNoiseKernel=AcquireOpenCLKernel(device,"AddNoise");
if (addNoiseKernel == (cl_kernel) NULL)
{
(void)OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"AcquireOpenCLKernel failed.",".");
goto cleanup;
}
/* 256 work items per group, 2 groups per CU */
workItemCount=device->max_compute_units*2*256;
inputPixelCount=(cl_int) (image->columns*image->rows);
pixelsPerWorkitem=(inputPixelCount+workItemCount-1)/workItemCount;
pixelsPerWorkitem=((pixelsPerWorkitem+3)/4)*4;
lsize[0]=256;
gsize[0]=workItemCount;
randomInfo=AcquireRandomInfo();
s=GetRandomInfoSeed(randomInfo);
seed0=s[0];
(void) GetPseudoRandomValue(randomInfo);
seed1=s[0];
randomInfo=DestroyRandomInfo(randomInfo);
number_channels=(cl_uint) image->number_channels;
bufferLength=(cl_uint) (image->columns*image->rows*image->number_channels);
cl_attenuate=(cl_float) attenuate;
i=0;
status =SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(cl_uint),(void *)&number_channels);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(ChannelType),(void *)&image->channel_mask);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(cl_uint),(void *)&bufferLength);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(cl_uint),(void *)&pixelsPerWorkitem);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(NoiseType),(void *)&noise_type);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(cl_float),(void *)&cl_attenuate);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(cl_uint),(void *)&seed0);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(cl_uint),(void *)&seed1);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(cl_uint),(void *)&numRandomNumberPerPixel);
status|=SetOpenCLKernelArg(addNoiseKernel,i++,sizeof(cl_mem),(void *)&filteredImageBuffer);
if (status != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"clSetKernelArg failed.",".");
goto cleanup;
}
outputReady=EnqueueOpenCLKernel(queue,addNoiseKernel,1,(const size_t *) NULL,gsize,
lsize,image,filteredImage,MagickFalse,exception);
cleanup:
if (imageBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(imageBuffer);
if (filteredImageBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(filteredImageBuffer);
if (addNoiseKernel != (cl_kernel) NULL)
ReleaseOpenCLKernel(addNoiseKernel);
if (queue != (cl_command_queue) NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != (MagickCLDevice) NULL)
ReleaseOpenCLDevice(device);
if ((outputReady == MagickFalse) && (filteredImage != (Image *) NULL))
filteredImage=DestroyImage(filteredImage);
return(filteredImage);
}
MagickPrivate Image *AccelerateAddNoiseImage(const Image *image,
const NoiseType noise_type,const double attenuate,ExceptionInfo *exception)
{
Image
*filteredImage;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if (checkAccelerateCondition(image) == MagickFalse)
return((Image *) NULL);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return((Image *) NULL);
filteredImage=ComputeAddNoiseImage(image,clEnv,noise_type,attenuate,
exception);
return(filteredImage);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e B l u r I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static Image *ComputeBlurImage(const Image* image,MagickCLEnv clEnv,
const double radius,const double sigma,ExceptionInfo *exception)
{
cl_command_queue
queue;
cl_int
status;
cl_kernel
blurColumnKernel,
blurRowKernel;
cl_mem
filteredImageBuffer,
imageBuffer,
imageKernelBuffer,
tempImageBuffer;
cl_uint
imageColumns,
imageRows,
kernelWidth,
number_channels;
Image
*filteredImage;
MagickBooleanType
outputReady;
MagickCLDevice
device;
MagickSizeType
length;
size_t
chunkSize=256,
gsize[2],
i,
lsize[2];
filteredImage=NULL;
imageBuffer=NULL;
filteredImageBuffer=NULL;
tempImageBuffer=NULL;
imageKernelBuffer=NULL;
blurRowKernel=NULL;
blurColumnKernel=NULL;
outputReady=MagickFalse;
device=RequestOpenCLDevice(clEnv);
queue=AcquireOpenCLCommandQueue(device);
filteredImage=cloneImage(image,exception);
if (filteredImage == (Image *) NULL)
goto cleanup;
if (filteredImage->number_channels != image->number_channels)
goto cleanup;
imageBuffer=GetAuthenticOpenCLBuffer(image,device,exception);
if (imageBuffer == (cl_mem) NULL)
goto cleanup;
filteredImageBuffer=GetAuthenticOpenCLBuffer(filteredImage,device,exception);
if (filteredImageBuffer == (cl_mem) NULL)
goto cleanup;
imageKernelBuffer=createKernelInfo(device,radius,sigma,&kernelWidth,
exception);
if (imageKernelBuffer == (cl_mem) NULL)
goto cleanup;
length=image->columns*image->rows;
tempImageBuffer=CreateOpenCLBuffer(device,CL_MEM_READ_WRITE,length*
sizeof(cl_float4),(void *) NULL);
if (tempImageBuffer == (cl_mem) NULL)
goto cleanup;
blurRowKernel=AcquireOpenCLKernel(device,"BlurRow");
if (blurRowKernel == (cl_kernel) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"AcquireOpenCLKernel failed.",".");
goto cleanup;
}
number_channels=(cl_uint) image->number_channels;
imageColumns=(cl_uint) image->columns;
imageRows=(cl_uint) image->rows;
i=0;
status =SetOpenCLKernelArg(blurRowKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
status|=SetOpenCLKernelArg(blurRowKernel,i++,sizeof(cl_uint),&number_channels);
status|=SetOpenCLKernelArg(blurRowKernel,i++,sizeof(ChannelType),&image->channel_mask);
status|=SetOpenCLKernelArg(blurRowKernel,i++,sizeof(cl_mem),(void *)&imageKernelBuffer);
status|=SetOpenCLKernelArg(blurRowKernel,i++,sizeof(cl_uint),(void *)&kernelWidth);
status|=SetOpenCLKernelArg(blurRowKernel,i++,sizeof(cl_uint),(void *)&imageColumns);
status|=SetOpenCLKernelArg(blurRowKernel,i++,sizeof(cl_uint),(void *)&imageRows);
status|=SetOpenCLKernelArg(blurRowKernel,i++,sizeof(cl_float4)*(chunkSize+kernelWidth),(void *) NULL);
status|=SetOpenCLKernelArg(blurRowKernel,i++,sizeof(cl_mem),(void *)&tempImageBuffer);
if (status != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"SetOpenCLKernelArg failed.",".");
goto cleanup;
}
gsize[0]=chunkSize*((image->columns+chunkSize-1)/chunkSize);
gsize[1]=image->rows;
lsize[0]=chunkSize;
lsize[1]=1;
outputReady=EnqueueOpenCLKernel(queue,blurRowKernel,2,(size_t *) NULL,gsize,
lsize,image,filteredImage,MagickFalse,exception);
if (outputReady == MagickFalse)
goto cleanup;
blurColumnKernel=AcquireOpenCLKernel(device,"BlurColumn");
if (blurColumnKernel == (cl_kernel) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"AcquireOpenCLKernel failed.",".");
goto cleanup;
}
i=0;
status =SetOpenCLKernelArg(blurColumnKernel,i++,sizeof(cl_mem),(void *)&tempImageBuffer);
status|=SetOpenCLKernelArg(blurColumnKernel,i++,sizeof(cl_uint),&number_channels);
status|=SetOpenCLKernelArg(blurColumnKernel,i++,sizeof(ChannelType),&image->channel_mask);
status|=SetOpenCLKernelArg(blurColumnKernel,i++,sizeof(cl_mem),(void *)&imageKernelBuffer);
status|=SetOpenCLKernelArg(blurColumnKernel,i++,sizeof(cl_uint),(void *)&kernelWidth);
status|=SetOpenCLKernelArg(blurColumnKernel,i++,sizeof(cl_uint),(void *)&imageColumns);
status|=SetOpenCLKernelArg(blurColumnKernel,i++,sizeof(cl_uint),(void *)&imageRows);
status|=SetOpenCLKernelArg(blurColumnKernel,i++,sizeof(cl_float4)*(chunkSize+kernelWidth),(void *) NULL);
status|=SetOpenCLKernelArg(blurColumnKernel,i++,sizeof(cl_mem),(void *)&filteredImageBuffer);
if (status != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"SetOpenCLKernelArg failed.",".");
goto cleanup;
}
gsize[0]=image->columns;
gsize[1]=chunkSize*((image->rows+chunkSize-1)/chunkSize);
lsize[0]=1;
lsize[1]=chunkSize;
outputReady=EnqueueOpenCLKernel(queue,blurColumnKernel,2,(size_t *) NULL,gsize,
lsize,image,filteredImage,MagickFalse,exception);
cleanup:
if (imageBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(imageBuffer);
if (filteredImageBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(filteredImageBuffer);
if (tempImageBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(tempImageBuffer);
if (imageKernelBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(imageKernelBuffer);
if (blurRowKernel != (cl_kernel) NULL)
ReleaseOpenCLKernel(blurRowKernel);
if (blurColumnKernel != (cl_kernel) NULL)
ReleaseOpenCLKernel(blurColumnKernel);
if (queue != (cl_command_queue) NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != (MagickCLDevice) NULL)
ReleaseOpenCLDevice(device);
if ((outputReady == MagickFalse) && (filteredImage != (Image *) NULL))
filteredImage=DestroyImage(filteredImage);
return(filteredImage);
}
MagickPrivate Image* AccelerateBlurImage(const Image *image,
const double radius,const double sigma,ExceptionInfo *exception)
{
Image
*filteredImage;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if (checkAccelerateCondition(image) == MagickFalse)
return((Image *) NULL);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return((Image *) NULL);
filteredImage=ComputeBlurImage(image,clEnv,radius,sigma,exception);
return(filteredImage);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e C o n t r a s t I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static MagickBooleanType ComputeContrastImage(Image *image,MagickCLEnv clEnv,
const MagickBooleanType sharpen,ExceptionInfo *exception)
{
cl_command_queue
queue;
cl_int
status,
sign;
cl_kernel
contrastKernel;
cl_mem
imageBuffer;
cl_uint
number_channels;
MagickBooleanType
outputReady;
MagickCLDevice
device;
size_t
gsize[2],
i;
contrastKernel=NULL;
imageBuffer=NULL;
outputReady=MagickFalse;
device=RequestOpenCLDevice(clEnv);
queue=AcquireOpenCLCommandQueue(device);
imageBuffer=GetAuthenticOpenCLBuffer(image,device,exception);
if (imageBuffer == (cl_mem) NULL)
goto cleanup;
contrastKernel=AcquireOpenCLKernel(device,"Contrast");
if (contrastKernel == (cl_kernel) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"AcquireOpenCLKernel failed.",".");
goto cleanup;
}
number_channels=(cl_uint) image->number_channels;
sign=sharpen != MagickFalse ? 1 : -1;
i=0;
status =SetOpenCLKernelArg(contrastKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
status|=SetOpenCLKernelArg(contrastKernel,i++,sizeof(cl_uint),&number_channels);
status|=SetOpenCLKernelArg(contrastKernel,i++,sizeof(cl_int),&sign);
if (status != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"SetOpenCLKernelArg failed.",".");
goto cleanup;
}
gsize[0]=image->columns;
gsize[1]=image->rows;
outputReady=EnqueueOpenCLKernel(queue,contrastKernel,2,(const size_t *) NULL,
gsize,(const size_t *) NULL,image,(Image *) NULL,MagickFalse,exception);
cleanup:
if (imageBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(imageBuffer);
if (contrastKernel != (cl_kernel) NULL)
ReleaseOpenCLKernel(contrastKernel);
if (queue != (cl_command_queue) NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != (MagickCLDevice) NULL)
ReleaseOpenCLDevice(device);
return(outputReady);
}
MagickPrivate MagickBooleanType AccelerateContrastImage(Image *image,
const MagickBooleanType sharpen,ExceptionInfo *exception)
{
MagickBooleanType
status;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if (checkAccelerateCondition(image) == MagickFalse)
return(MagickFalse);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return(MagickFalse);
status=ComputeContrastImage(image,clEnv,sharpen,exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e C o n t r a s t S t r e t c h I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static MagickBooleanType ComputeContrastStretchImage(Image *image,
MagickCLEnv clEnv,const double black_point,const double white_point,
ExceptionInfo *exception)
{
#define ContrastStretchImageTag "ContrastStretch/Image"
#define MaxRange(color) ((cl_float) ScaleQuantumToMap((Quantum) (color)))
CacheView
*image_view;
cl_command_queue
queue;
cl_int
clStatus;
cl_mem_flags
mem_flags;
cl_mem
histogramBuffer,
imageBuffer,
stretchMapBuffer;
cl_kernel
histogramKernel,
stretchKernel;
cl_event
event;
cl_uint4
*histogram;
double
intensity;
cl_float4
black,
white;
MagickBooleanType
outputReady,
status;
MagickCLDevice
device;
MagickSizeType
length;
PixelPacket
*stretch_map;
register ssize_t
i;
size_t
global_work_size[2];
void
*hostPtr,
*inputPixels;
histogram=NULL;
stretch_map=NULL;
inputPixels = NULL;
imageBuffer = NULL;
histogramBuffer = NULL;
stretchMapBuffer = NULL;
histogramKernel = NULL;
stretchKernel = NULL;
queue = NULL;
outputReady = MagickFalse;
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
/* exception=(&image->exception); */
/*
Initialize opencl environment.
*/
device = RequestOpenCLDevice(clEnv);
queue = AcquireOpenCLCommandQueue(device);
/*
Allocate and initialize histogram arrays.
*/
histogram=(cl_uint4 *) AcquireQuantumMemory(MaxMap+1UL, sizeof(*histogram));
if (histogram == (cl_uint4 *) NULL)
ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", image->filename);
/* reset histogram */
(void) memset(histogram,0,(MaxMap+1)*sizeof(*histogram));
/*
if (IsGrayImage(image,exception) != MagickFalse)
(void) SetImageColorspace(image,GRAYColorspace);
*/
status=MagickTrue;
/*
Form histogram.
*/
/* Create and initialize OpenCL buffers. */
/* inputPixels = AcquirePixelCachePixels(image, &length, exception); */
/* assume this will get a writable image */
image_view=AcquireAuthenticCacheView(image,exception);
inputPixels=GetCacheViewAuthenticPixels(image_view,0,0,image->columns,image->rows,exception);
if (inputPixels == (void *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),CacheWarning,"UnableToReadPixelCache.","`%s'",image->filename);
goto cleanup;
}
/* If the host pointer is aligned to the size of CLPixelPacket,
then use the host buffer directly from the GPU; otherwise,
create a buffer on the GPU and copy the data over */
if (ALIGNED(inputPixels,CLPixelPacket))
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR;
}
else
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_COPY_HOST_PTR;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
imageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), (void*)inputPixels, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
/* If the host pointer is aligned to the size of cl_uint,
then use the host buffer directly from the GPU; otherwise,
create a buffer on the GPU and copy the data over */
if (ALIGNED(histogram,cl_uint4))
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR;
hostPtr = histogram;
}
else
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_COPY_HOST_PTR;
hostPtr = histogram;
}
/* create a CL buffer for histogram */
length = (MaxMap+1);
histogramBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(cl_uint4), hostPtr, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
status = LaunchHistogramKernel(clEnv, device, queue, imageBuffer, histogramBuffer, image, image->channel_mask,exception);
if (status == MagickFalse)
goto cleanup;
/* read from the kenel output */
if (ALIGNED(histogram,cl_uint4))
{
length = (MaxMap+1);
clEnv->library->clEnqueueMapBuffer(queue, histogramBuffer, CL_TRUE, CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(cl_uint4), 0, NULL, NULL, &clStatus);
}
else
{
length = (MaxMap+1);
clStatus = clEnv->library->clEnqueueReadBuffer(queue, histogramBuffer, CL_TRUE, 0, length * sizeof(cl_uint4), histogram, 0, NULL, NULL);
}
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "Reading output image from CL buffer failed.", ".");
goto cleanup;
}
/* unmap, don't block gpu to use this buffer again. */
if (ALIGNED(histogram,cl_uint4))
{
clStatus = clEnv->library->clEnqueueUnmapMemObject(queue, histogramBuffer, histogram, 0, NULL, NULL);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueUnmapMemObject failed.", ".");
goto cleanup;
}
}
/* recreate input buffer later, in case image updated */
#ifdef RECREATEBUFFER
if (imageBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageBuffer);
#endif
/* CPU stuff */
/*
Find the histogram boundaries by locating the black/white levels.
*/
black.x=0.0;
white.x=MaxRange(QuantumRange);
if ((image->channel_mask & RedChannel) != 0)
{
intensity=0.0;
for (i=0; i <= (ssize_t) MaxMap; i++)
{
intensity+=histogram[i].s[2];
if (intensity > black_point)
break;
}
black.x=(cl_float) i;
intensity=0.0;
for (i=(ssize_t) MaxMap; i != 0; i--)
{
intensity+=histogram[i].s[2];
if (intensity > ((double) image->columns*image->rows-white_point))
break;
}
white.x=(cl_float) i;
}
black.y=0.0;
white.y=MaxRange(QuantumRange);
if ((image->channel_mask & GreenChannel) != 0)
{
intensity=0.0;
for (i=0; i <= (ssize_t) MaxMap; i++)
{
intensity+=histogram[i].s[2];
if (intensity > black_point)
break;
}
black.y=(cl_float) i;
intensity=0.0;
for (i=(ssize_t) MaxMap; i != 0; i--)
{
intensity+=histogram[i].s[2];
if (intensity > ((double) image->columns*image->rows-white_point))
break;
}
white.y=(cl_float) i;
}
black.z=0.0;
white.z=MaxRange(QuantumRange);
if ((image->channel_mask & BlueChannel) != 0)
{
intensity=0.0;
for (i=0; i <= (ssize_t) MaxMap; i++)
{
intensity+=histogram[i].s[2];
if (intensity > black_point)
break;
}
black.z=(cl_float) i;
intensity=0.0;
for (i=(ssize_t) MaxMap; i != 0; i--)
{
intensity+=histogram[i].s[2];
if (intensity > ((double) image->columns*image->rows-white_point))
break;
}
white.z=(cl_float) i;
}
black.w=0.0;
white.w=MaxRange(QuantumRange);
if ((image->channel_mask & AlphaChannel) != 0)
{
intensity=0.0;
for (i=0; i <= (ssize_t) MaxMap; i++)
{
intensity+=histogram[i].s[2];
if (intensity > black_point)
break;
}
black.w=(cl_float) i;
intensity=0.0;
for (i=(ssize_t) MaxMap; i != 0; i--)
{
intensity+=histogram[i].s[2];
if (intensity > ((double) image->columns*image->rows-white_point))
break;
}
white.w=(cl_float) i;
}
stretch_map=(PixelPacket *) AcquireQuantumMemory(MaxMap+1UL,
sizeof(*stretch_map));
if (stretch_map == (PixelPacket *) NULL)
ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
image->filename);
/*
Stretch the histogram to create the stretched image mapping.
*/
(void) memset(stretch_map,0,(MaxMap+1)*sizeof(*stretch_map));
for (i=0; i <= (ssize_t) MaxMap; i++)
{
if ((image->channel_mask & RedChannel) != 0)
{
if (i < (ssize_t) black.x)
stretch_map[i].red=(Quantum) 0;
else
if (i > (ssize_t) white.x)
stretch_map[i].red=QuantumRange;
else
if (black.x != white.x)
stretch_map[i].red=ScaleMapToQuantum((MagickRealType) (MaxMap*
(i-black.x)/(white.x-black.x)));
}
if ((image->channel_mask & GreenChannel) != 0)
{
if (i < (ssize_t) black.y)
stretch_map[i].green=0;
else
if (i > (ssize_t) white.y)
stretch_map[i].green=QuantumRange;
else
if (black.y != white.y)
stretch_map[i].green=ScaleMapToQuantum((MagickRealType) (MaxMap*
(i-black.y)/(white.y-black.y)));
}
if ((image->channel_mask & BlueChannel) != 0)
{
if (i < (ssize_t) black.z)
stretch_map[i].blue=0;
else
if (i > (ssize_t) white.z)
stretch_map[i].blue= QuantumRange;
else
if (black.z != white.z)
stretch_map[i].blue=ScaleMapToQuantum((MagickRealType) (MaxMap*
(i-black.z)/(white.z-black.z)));
}
if ((image->channel_mask & AlphaChannel) != 0)
{
if (i < (ssize_t) black.w)
stretch_map[i].alpha=0;
else
if (i > (ssize_t) white.w)
stretch_map[i].alpha=QuantumRange;
else
if (black.w != white.w)
stretch_map[i].alpha=ScaleMapToQuantum((MagickRealType) (MaxMap*
(i-black.w)/(white.w-black.w)));
}
}
/*
Stretch the image.
*/
if (((image->channel_mask & AlphaChannel) != 0) || (((image->channel_mask & IndexChannel) != 0) &&
(image->colorspace == CMYKColorspace)))
image->storage_class=DirectClass;
if (image->storage_class == PseudoClass)
{
/*
Stretch colormap.
*/
for (i=0; i < (ssize_t) image->colors; i++)
{
if ((image->channel_mask & RedChannel) != 0)
{
if (black.x != white.x)
image->colormap[i].red=stretch_map[
ScaleQuantumToMap(image->colormap[i].red)].red;
}
if ((image->channel_mask & GreenChannel) != 0)
{
if (black.y != white.y)
image->colormap[i].green=stretch_map[
ScaleQuantumToMap(image->colormap[i].green)].green;
}
if ((image->channel_mask & BlueChannel) != 0)
{
if (black.z != white.z)
image->colormap[i].blue=stretch_map[
ScaleQuantumToMap(image->colormap[i].blue)].blue;
}
if ((image->channel_mask & AlphaChannel) != 0)
{
if (black.w != white.w)
image->colormap[i].alpha=stretch_map[
ScaleQuantumToMap(image->colormap[i].alpha)].alpha;
}
}
}
/*
Stretch image.
*/
/* GPU can work on this again, image and equalize map as input
image: uchar4 (CLPixelPacket)
stretch_map: uchar4 (PixelPacket)
black, white: float4 (FloatPixelPacket) */
#ifdef RECREATEBUFFER
/* If the host pointer is aligned to the size of CLPixelPacket,
then use the host buffer directly from the GPU; otherwise,
create a buffer on the GPU and copy the data over */
if (ALIGNED(inputPixels,CLPixelPacket))
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR;
}
else
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_COPY_HOST_PTR;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
imageBuffer = clEnv->library->clCreateBuffer(context, mem_flags, length * sizeof(CLPixelPacket), (void*)inputPixels, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
#endif
/* Create and initialize OpenCL buffers. */
if (ALIGNED(stretch_map, PixelPacket))
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR;
hostPtr = stretch_map;
}
else
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_COPY_HOST_PTR;
hostPtr = stretch_map;
}
/* create a CL buffer for stretch_map */
length = (MaxMap+1);
stretchMapBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(PixelPacket), hostPtr, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
/* get the OpenCL kernel */
stretchKernel = AcquireOpenCLKernel(device,"ContrastStretch");
if (stretchKernel == NULL)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "AcquireOpenCLKernel failed.", ".");
goto cleanup;
}
/* set the kernel arguments */
i = 0;
clStatus=clEnv->library->clSetKernelArg(stretchKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
clStatus|=clEnv->library->clSetKernelArg(stretchKernel,i++,sizeof(ChannelType),&image->channel_mask);
clStatus|=clEnv->library->clSetKernelArg(stretchKernel,i++,sizeof(cl_mem),(void *)&stretchMapBuffer);
clStatus|=clEnv->library->clSetKernelArg(stretchKernel,i++,sizeof(cl_float4),&white);
clStatus|=clEnv->library->clSetKernelArg(stretchKernel,i++,sizeof(cl_float4),&black);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
/* launch the kernel */
global_work_size[0] = image->columns;
global_work_size[1] = image->rows;
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, stretchKernel, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,stretchKernel,event);
/* read the data back */
if (ALIGNED(inputPixels,CLPixelPacket))
{
length = image->columns * image->rows;
clEnv->library->clEnqueueMapBuffer(queue, imageBuffer, CL_TRUE, CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(CLPixelPacket), 0, NULL, NULL, &clStatus);
}
else
{
length = image->columns * image->rows;
clStatus = clEnv->library->clEnqueueReadBuffer(queue, imageBuffer, CL_TRUE, 0, length * sizeof(CLPixelPacket), inputPixels, 0, NULL, NULL);
}
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "Reading output image from CL buffer failed.", ".");
goto cleanup;
}
outputReady=SyncCacheViewAuthenticPixels(image_view,exception);
cleanup:
image_view=DestroyCacheView(image_view);
if (imageBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageBuffer);
if (stretchMapBuffer!=NULL)
clEnv->library->clReleaseMemObject(stretchMapBuffer);
if (stretch_map!=NULL)
stretch_map=(PixelPacket *) RelinquishMagickMemory(stretch_map);
if (histogramBuffer!=NULL)
clEnv->library->clReleaseMemObject(histogramBuffer);
if (histogram!=NULL)
histogram=(cl_uint4 *) RelinquishMagickMemory(histogram);
if (histogramKernel!=NULL)
ReleaseOpenCLKernel(histogramKernel);
if (stretchKernel!=NULL)
ReleaseOpenCLKernel(stretchKernel);
if (queue != NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != NULL)
ReleaseOpenCLDevice(device);
return(outputReady);
}
MagickPrivate MagickBooleanType AccelerateContrastStretchImage(
Image *image,const double black_point,const double white_point,
ExceptionInfo *exception)
{
MagickBooleanType
status;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if ((checkAccelerateConditionRGBA(image) == MagickFalse) ||
(checkHistogramCondition(image,image->intensity) == MagickFalse))
return(MagickFalse);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return(MagickFalse);
status=ComputeContrastStretchImage(image,clEnv,black_point,white_point,
exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e C o n v o l v e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static Image *ComputeConvolveImage(const Image* image,MagickCLEnv clEnv,
const KernelInfo *kernel,ExceptionInfo *exception)
{
CacheView
*filteredImage_view,
*image_view;
cl_command_queue
queue;
cl_event
event;
cl_kernel
clkernel;
cl_int
clStatus;
cl_mem
convolutionKernel,
filteredImageBuffer,
imageBuffer;
cl_mem_flags
mem_flags;
const void
*inputPixels;
float
*kernelBufferPtr;
Image
*filteredImage;
MagickBooleanType
outputReady;
MagickCLDevice
device;
MagickSizeType
length;
size_t
global_work_size[3],
localGroupSize[3],
localMemoryRequirement;
unsigned
kernelSize;
unsigned int
filterHeight,
filterWidth,
i,
imageHeight,
imageWidth,
matte;
void
*filteredPixels,
*hostPtr;
/* intialize all CL objects to NULL */
imageBuffer = NULL;
filteredImageBuffer = NULL;
convolutionKernel = NULL;
clkernel = NULL;
queue = NULL;
filteredImage = NULL;
filteredImage_view = NULL;
outputReady = MagickFalse;
device = RequestOpenCLDevice(clEnv);
image_view=AcquireAuthenticCacheView(image,exception);
inputPixels=GetCacheViewAuthenticPixels(image_view,0,0,image->columns,image->rows,exception);
if (inputPixels == (const void *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),CacheWarning,"UnableToReadPixelCache.","`%s'",image->filename);
goto cleanup;
}
/* Create and initialize OpenCL buffers. */
/* If the host pointer is aligned to the size of CLPixelPacket,
then use the host buffer directly from the GPU; otherwise,
create a buffer on the GPU and copy the data over */
if (ALIGNED(inputPixels,CLPixelPacket))
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR;
}
else
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_COPY_HOST_PTR;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
imageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), (void*)inputPixels, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
filteredImage = CloneImage(image,0,0,MagickTrue,exception);
assert(filteredImage != NULL);
if (SetImageStorageClass(filteredImage,DirectClass,exception) != MagickTrue)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "CloneImage failed.", ".");
goto cleanup;
}
filteredImage_view=AcquireAuthenticCacheView(filteredImage,exception);
filteredPixels=GetCacheViewAuthenticPixels(filteredImage_view,0,0,filteredImage->columns,filteredImage->rows,exception);
if (filteredPixels == (void *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),CacheWarning, "UnableToReadPixelCache.","`%s'",filteredImage->filename);
goto cleanup;
}
if (ALIGNED(filteredPixels,CLPixelPacket))
{
mem_flags = CL_MEM_WRITE_ONLY|CL_MEM_USE_HOST_PTR;
hostPtr = filteredPixels;
}
else
{
mem_flags = CL_MEM_WRITE_ONLY;
hostPtr = NULL;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
filteredImageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), hostPtr, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
kernelSize = (unsigned int) (kernel->width * kernel->height);
convolutionKernel = clEnv->library->clCreateBuffer(device->context, CL_MEM_READ_ONLY|CL_MEM_ALLOC_HOST_PTR, kernelSize * sizeof(float), NULL, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
queue = AcquireOpenCLCommandQueue(device);
kernelBufferPtr = (float*)clEnv->library->clEnqueueMapBuffer(queue, convolutionKernel, CL_TRUE, CL_MAP_WRITE, 0, kernelSize * sizeof(float)
, 0, NULL, NULL, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueMapBuffer failed.",".");
goto cleanup;
}
for (i = 0; i < kernelSize; i++)
{
kernelBufferPtr[i] = (float) kernel->values[i];
}
clStatus = clEnv->library->clEnqueueUnmapMemObject(queue, convolutionKernel, kernelBufferPtr, 0, NULL, NULL);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueUnmapMemObject failed.", ".");
goto cleanup;
}
/* Compute the local memory requirement for a 16x16 workgroup.
If it's larger than 16k, reduce the workgroup size to 8x8 */
localGroupSize[0] = 16;
localGroupSize[1] = 16;
localMemoryRequirement = (localGroupSize[0]+kernel->width-1) * (localGroupSize[1]+kernel->height-1) * sizeof(CLPixelPacket)
+ kernel->width*kernel->height*sizeof(float);
if (localMemoryRequirement > device->local_memory_size)
{
localGroupSize[0] = 8;
localGroupSize[1] = 8;
localMemoryRequirement = (localGroupSize[0]+kernel->width-1) * (localGroupSize[1]+kernel->height-1) * sizeof(CLPixelPacket)
+ kernel->width*kernel->height*sizeof(float);
}
if (localMemoryRequirement <= device->local_memory_size)
{
/* get the OpenCL kernel */
clkernel = AcquireOpenCLKernel(device,"ConvolveOptimized");
if (clkernel == NULL)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "AcquireOpenCLKernel failed.", ".");
goto cleanup;
}
/* set the kernel arguments */
i = 0;
clStatus =clEnv->library->clSetKernelArg(clkernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(cl_mem),(void *)&filteredImageBuffer);
imageWidth = (unsigned int) image->columns;
imageHeight = (unsigned int) image->rows;
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&imageWidth);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&imageHeight);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(cl_mem),(void *)&convolutionKernel);
filterWidth = (unsigned int) kernel->width;
filterHeight = (unsigned int) kernel->height;
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&filterWidth);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&filterHeight);
matte = (image->alpha_trait > CopyPixelTrait)?1:0;
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&matte);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(ChannelType),(void *)&image->channel_mask);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++, (localGroupSize[0] + kernel->width-1)*(localGroupSize[1] + kernel->height-1)*sizeof(CLPixelPacket),NULL);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++, kernel->width*kernel->height*sizeof(float),NULL);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
/* pad the global size to a multiple of the local work size dimension */
global_work_size[0] = ((image->columns + localGroupSize[0] - 1)/localGroupSize[0] ) * localGroupSize[0] ;
global_work_size[1] = ((image->rows + localGroupSize[1] - 1)/localGroupSize[1]) * localGroupSize[1];
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, clkernel, 2, NULL, global_work_size, localGroupSize, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,clkernel,event);
}
else
{
/* get the OpenCL kernel */
clkernel = AcquireOpenCLKernel(device,"Convolve");
if (clkernel == NULL)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "AcquireOpenCLKernel failed.", ".");
goto cleanup;
}
/* set the kernel arguments */
i = 0;
clStatus =clEnv->library->clSetKernelArg(clkernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(cl_mem),(void *)&filteredImageBuffer);
imageWidth = (unsigned int) image->columns;
imageHeight = (unsigned int) image->rows;
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&imageWidth);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&imageHeight);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(cl_mem),(void *)&convolutionKernel);
filterWidth = (unsigned int) kernel->width;
filterHeight = (unsigned int) kernel->height;
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&filterWidth);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&filterHeight);
matte = (image->alpha_trait > CopyPixelTrait)?1:0;
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(unsigned int),(void *)&matte);
clStatus|=clEnv->library->clSetKernelArg(clkernel,i++,sizeof(ChannelType),(void *)&image->channel_mask);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
localGroupSize[0] = 8;
localGroupSize[1] = 8;
global_work_size[0] = (image->columns + (localGroupSize[0]-1))/localGroupSize[0] * localGroupSize[0];
global_work_size[1] = (image->rows + (localGroupSize[1]-1))/localGroupSize[1] * localGroupSize[1];
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, clkernel, 2, NULL, global_work_size, localGroupSize, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
}
RecordProfileData(device,clkernel,event);
if (ALIGNED(filteredPixels,CLPixelPacket))
{
length = image->columns * image->rows;
clEnv->library->clEnqueueMapBuffer(queue, filteredImageBuffer, CL_TRUE, CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(CLPixelPacket), 0, NULL, NULL, &clStatus);
}
else
{
length = image->columns * image->rows;
clStatus = clEnv->library->clEnqueueReadBuffer(queue, filteredImageBuffer, CL_TRUE, 0, length * sizeof(CLPixelPacket), filteredPixels, 0, NULL, NULL);
}
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "Reading output image from CL buffer failed.", ".");
goto cleanup;
}
outputReady=SyncCacheViewAuthenticPixels(filteredImage_view,exception);
cleanup:
image_view=DestroyCacheView(image_view);
if (filteredImage_view != NULL)
filteredImage_view=DestroyCacheView(filteredImage_view);
if (imageBuffer != NULL)
clEnv->library->clReleaseMemObject(imageBuffer);
if (filteredImageBuffer != NULL)
clEnv->library->clReleaseMemObject(filteredImageBuffer);
if (convolutionKernel != NULL)
clEnv->library->clReleaseMemObject(convolutionKernel);
if (clkernel != NULL)
ReleaseOpenCLKernel(clkernel);
if (queue != NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != NULL)
ReleaseOpenCLDevice(device);
if (outputReady == MagickFalse)
{
if (filteredImage != NULL)
{
DestroyImage(filteredImage);
filteredImage = NULL;
}
}
return(filteredImage);
}
MagickPrivate Image *AccelerateConvolveImage(const Image *image,
const KernelInfo *kernel,ExceptionInfo *exception)
{
/* Temporary disabled due to access violation
Image
*filteredImage;
assert(image != NULL);
assert(kernel != (KernelInfo *) NULL);
assert(exception != (ExceptionInfo *) NULL);
if ((checkAccelerateConditionRGBA(image) == MagickFalse) ||
(checkOpenCLEnvironment(exception) == MagickFalse))
return((Image *) NULL);
filteredImage=ComputeConvolveImage(image,kernel,exception);
return(filteredImage);
*/
magick_unreferenced(image);
magick_unreferenced(kernel);
magick_unreferenced(exception);
return((Image *)NULL);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e D e s p e c k l e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static Image *ComputeDespeckleImage(const Image *image,MagickCLEnv clEnv,
ExceptionInfo*exception)
{
static const int
X[4] = {0, 1, 1,-1},
Y[4] = {1, 0, 1, 1};
CacheView
*filteredImage_view,
*image_view;
cl_command_queue
queue;
cl_int
clStatus;
cl_kernel
hullPass1,
hullPass2;
cl_event
event;
cl_mem_flags
mem_flags;
cl_mem
filteredImageBuffer,
imageBuffer,
tempImageBuffer[2];
const void
*inputPixels;
Image
*filteredImage;
int
k,
matte;
MagickBooleanType
outputReady;
MagickCLDevice
device;
MagickSizeType
length;
size_t
global_work_size[2];
unsigned int
imageHeight,
imageWidth;
void
*filteredPixels,
*hostPtr;
outputReady = MagickFalse;
inputPixels = NULL;
filteredImage = NULL;
filteredImage_view = NULL;
filteredPixels = NULL;
imageBuffer = NULL;
filteredImageBuffer = NULL;
hullPass1 = NULL;
hullPass2 = NULL;
queue = NULL;
tempImageBuffer[0] = tempImageBuffer[1] = NULL;
device = RequestOpenCLDevice(clEnv);
queue = AcquireOpenCLCommandQueue(device);
image_view=AcquireAuthenticCacheView(image,exception);
inputPixels=GetCacheViewAuthenticPixels(image_view,0,0,image->columns,image->rows,exception);
if (inputPixels == (void *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),CacheWarning,"UnableToReadPixelCache.","`%s'",image->filename);
goto cleanup;
}
if (ALIGNED(inputPixels,CLPixelPacket))
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR;
}
else
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_COPY_HOST_PTR;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
imageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), (void*)inputPixels, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
mem_flags = CL_MEM_READ_WRITE;
length = image->columns * image->rows;
for (k = 0; k < 2; k++)
{
tempImageBuffer[k] = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), NULL, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
}
filteredImage = CloneImage(image,0,0,MagickTrue,exception);
assert(filteredImage != NULL);
if (SetImageStorageClass(filteredImage,DirectClass,exception) != MagickTrue)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "CloneImage failed.", ".");
goto cleanup;
}
filteredImage_view=AcquireAuthenticCacheView(filteredImage,exception);
filteredPixels=GetCacheViewAuthenticPixels(filteredImage_view,0,0,filteredImage->columns,filteredImage->rows,exception);
if (filteredPixels == (void *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),CacheWarning, "UnableToReadPixelCache.","`%s'",filteredImage->filename);
goto cleanup;
}
if (ALIGNED(filteredPixels,CLPixelPacket))
{
mem_flags = CL_MEM_WRITE_ONLY|CL_MEM_USE_HOST_PTR;
hostPtr = filteredPixels;
}
else
{
mem_flags = CL_MEM_WRITE_ONLY;
hostPtr = NULL;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
filteredImageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), hostPtr, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
hullPass1 = AcquireOpenCLKernel(device,"HullPass1");
hullPass2 = AcquireOpenCLKernel(device,"HullPass2");
clStatus =clEnv->library->clSetKernelArg(hullPass1,0,sizeof(cl_mem),(void *)&imageBuffer);
clStatus |=clEnv->library->clSetKernelArg(hullPass1,1,sizeof(cl_mem),(void *)(tempImageBuffer+1));
imageWidth = (unsigned int) image->columns;
clStatus |=clEnv->library->clSetKernelArg(hullPass1,2,sizeof(unsigned int),(void *)&imageWidth);
imageHeight = (unsigned int) image->rows;
clStatus |=clEnv->library->clSetKernelArg(hullPass1,3,sizeof(unsigned int),(void *)&imageHeight);
matte = (image->alpha_trait > CopyPixelTrait)?1:0;
clStatus |=clEnv->library->clSetKernelArg(hullPass1,6,sizeof(int),(void *)&matte);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
clStatus = clEnv->library->clSetKernelArg(hullPass2,0,sizeof(cl_mem),(void *)(tempImageBuffer+1));
clStatus |=clEnv->library->clSetKernelArg(hullPass2,1,sizeof(cl_mem),(void *)tempImageBuffer);
imageWidth = (unsigned int) image->columns;
clStatus |=clEnv->library->clSetKernelArg(hullPass2,2,sizeof(unsigned int),(void *)&imageWidth);
imageHeight = (unsigned int) image->rows;
clStatus |=clEnv->library->clSetKernelArg(hullPass2,3,sizeof(unsigned int),(void *)&imageHeight);
matte = (image->alpha_trait > CopyPixelTrait)?1:0;
clStatus |=clEnv->library->clSetKernelArg(hullPass2,6,sizeof(int),(void *)&matte);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
global_work_size[0] = image->columns;
global_work_size[1] = image->rows;
for (k = 0; k < 4; k++)
{
cl_int2 offset;
int polarity;
offset.s[0] = X[k];
offset.s[1] = Y[k];
polarity = 1;
clStatus = clEnv->library->clSetKernelArg(hullPass1,4,sizeof(cl_int2),(void *)&offset);
clStatus|= clEnv->library->clSetKernelArg(hullPass1,5,sizeof(int),(void *)&polarity);
clStatus|=clEnv->library->clSetKernelArg(hullPass2,4,sizeof(cl_int2),(void *)&offset);
clStatus|=clEnv->library->clSetKernelArg(hullPass2,5,sizeof(int),(void *)&polarity);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, hullPass1, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,hullPass1,event);
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, hullPass2, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,hullPass2,event);
if (k == 0)
clStatus =clEnv->library->clSetKernelArg(hullPass1,0,sizeof(cl_mem),(void *)(tempImageBuffer));
offset.s[0] = -X[k];
offset.s[1] = -Y[k];
polarity = 1;
clStatus = clEnv->library->clSetKernelArg(hullPass1,4,sizeof(cl_int2),(void *)&offset);
clStatus|= clEnv->library->clSetKernelArg(hullPass1,5,sizeof(int),(void *)&polarity);
clStatus|=clEnv->library->clSetKernelArg(hullPass2,4,sizeof(cl_int2),(void *)&offset);
clStatus|=clEnv->library->clSetKernelArg(hullPass2,5,sizeof(int),(void *)&polarity);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, hullPass1, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,hullPass1,event);
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, hullPass2, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,hullPass2,event);
offset.s[0] = -X[k];
offset.s[1] = -Y[k];
polarity = -1;
clStatus = clEnv->library->clSetKernelArg(hullPass1,4,sizeof(cl_int2),(void *)&offset);
clStatus|= clEnv->library->clSetKernelArg(hullPass1,5,sizeof(int),(void *)&polarity);
clStatus|=clEnv->library->clSetKernelArg(hullPass2,4,sizeof(cl_int2),(void *)&offset);
clStatus|=clEnv->library->clSetKernelArg(hullPass2,5,sizeof(int),(void *)&polarity);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, hullPass1, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,hullPass1,event);
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, hullPass2, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,hullPass2,event);
offset.s[0] = X[k];
offset.s[1] = Y[k];
polarity = -1;
clStatus = clEnv->library->clSetKernelArg(hullPass1,4,sizeof(cl_int2),(void *)&offset);
clStatus|= clEnv->library->clSetKernelArg(hullPass1,5,sizeof(int),(void *)&polarity);
clStatus|=clEnv->library->clSetKernelArg(hullPass2,4,sizeof(cl_int2),(void *)&offset);
clStatus|=clEnv->library->clSetKernelArg(hullPass2,5,sizeof(int),(void *)&polarity);
if (k == 3)
clStatus |=clEnv->library->clSetKernelArg(hullPass2,1,sizeof(cl_mem),(void *)&filteredImageBuffer);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, hullPass1, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,hullPass1,event);
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, hullPass2, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,hullPass2,event);
}
if (ALIGNED(filteredPixels,CLPixelPacket))
{
length = image->columns * image->rows;
clEnv->library->clEnqueueMapBuffer(queue, filteredImageBuffer, CL_TRUE, CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(CLPixelPacket), 0, NULL, NULL, &clStatus);
}
else
{
length = image->columns * image->rows;
clStatus = clEnv->library->clEnqueueReadBuffer(queue, filteredImageBuffer, CL_TRUE, 0, length * sizeof(CLPixelPacket), filteredPixels, 0, NULL, NULL);
}
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "Reading output image from CL buffer failed.", ".");
goto cleanup;
}
outputReady=SyncCacheViewAuthenticPixels(filteredImage_view,exception);
cleanup:
image_view=DestroyCacheView(image_view);
if (filteredImage_view != NULL)
filteredImage_view=DestroyCacheView(filteredImage_view);
if (queue != NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != NULL)
ReleaseOpenCLDevice(device);
if (imageBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageBuffer);
for (k = 0; k < 2; k++)
{
if (tempImageBuffer[k]!=NULL)
clEnv->library->clReleaseMemObject(tempImageBuffer[k]);
}
if (filteredImageBuffer!=NULL)
clEnv->library->clReleaseMemObject(filteredImageBuffer);
if (hullPass1!=NULL)
ReleaseOpenCLKernel(hullPass1);
if (hullPass2!=NULL)
ReleaseOpenCLKernel(hullPass2);
if (outputReady == MagickFalse && filteredImage != NULL)
filteredImage=DestroyImage(filteredImage);
return(filteredImage);
}
MagickPrivate Image *AccelerateDespeckleImage(const Image* image,
ExceptionInfo* exception)
{
Image
*filteredImage;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if (checkAccelerateConditionRGBA(image) == MagickFalse)
return((Image *) NULL);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return((Image *) NULL);
filteredImage=ComputeDespeckleImage(image,clEnv,exception);
return(filteredImage);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e E q u a l i z e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static MagickBooleanType ComputeEqualizeImage(Image *image,MagickCLEnv clEnv,
ExceptionInfo *exception)
{
#define EqualizeImageTag "Equalize/Image"
CacheView
*image_view;
cl_command_queue
queue;
cl_int
clStatus;
cl_mem_flags
mem_flags;
cl_mem
equalizeMapBuffer,
histogramBuffer,
imageBuffer;
cl_kernel
equalizeKernel,
histogramKernel;
cl_event
event;
cl_uint4
*histogram;
cl_float4
white,
black,
intensity,
*map;
MagickBooleanType
outputReady,
status;
MagickCLDevice
device;
MagickSizeType
length;
PixelPacket
*equalize_map;
register ssize_t
i;
size_t
global_work_size[2];
void
*hostPtr,
*inputPixels;
map=NULL;
histogram=NULL;
equalize_map=NULL;
inputPixels = NULL;
imageBuffer = NULL;
histogramBuffer = NULL;
equalizeMapBuffer = NULL;
histogramKernel = NULL;
equalizeKernel = NULL;
queue = NULL;
outputReady = MagickFalse;
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
/*
* initialize opencl env
*/
device = RequestOpenCLDevice(clEnv);
queue = AcquireOpenCLCommandQueue(device);
/*
Allocate and initialize histogram arrays.
*/
histogram=(cl_uint4 *) AcquireQuantumMemory(MaxMap+1UL, sizeof(*histogram));
if (histogram == (cl_uint4 *) NULL)
ThrowBinaryException(ResourceLimitWarning,"MemoryAllocationFailed", image->filename);
/* reset histogram */
(void) memset(histogram,0,(MaxMap+1)*sizeof(*histogram));
/* Create and initialize OpenCL buffers. */
/* inputPixels = AcquirePixelCachePixels(image, &length, exception); */
/* assume this will get a writable image */
image_view=AcquireAuthenticCacheView(image,exception);
inputPixels=GetCacheViewAuthenticPixels(image_view,0,0,image->columns,image->rows,exception);
if (inputPixels == (void *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),CacheWarning,"UnableToReadPixelCache.","`%s'",image->filename);
goto cleanup;
}
/* If the host pointer is aligned to the size of CLPixelPacket,
then use the host buffer directly from the GPU; otherwise,
create a buffer on the GPU and copy the data over */
if (ALIGNED(inputPixels,CLPixelPacket))
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR;
}
else
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_COPY_HOST_PTR;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
imageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), (void*)inputPixels, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
/* If the host pointer is aligned to the size of cl_uint,
then use the host buffer directly from the GPU; otherwise,
create a buffer on the GPU and copy the data over */
if (ALIGNED(histogram,cl_uint4))
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR;
hostPtr = histogram;
}
else
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_COPY_HOST_PTR;
hostPtr = histogram;
}
/* create a CL buffer for histogram */
length = (MaxMap+1);
histogramBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(cl_uint4), hostPtr, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
status = LaunchHistogramKernel(clEnv, device, queue, imageBuffer, histogramBuffer, image, image->channel_mask, exception);
if (status == MagickFalse)
goto cleanup;
/* read from the kenel output */
if (ALIGNED(histogram,cl_uint4))
{
length = (MaxMap+1);
clEnv->library->clEnqueueMapBuffer(queue, histogramBuffer, CL_TRUE, CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(cl_uint4), 0, NULL, NULL, &clStatus);
}
else
{
length = (MaxMap+1);
clStatus = clEnv->library->clEnqueueReadBuffer(queue, histogramBuffer, CL_TRUE, 0, length * sizeof(cl_uint4), histogram, 0, NULL, NULL);
}
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "Reading output image from CL buffer failed.", ".");
goto cleanup;
}
/* unmap, don't block gpu to use this buffer again. */
if (ALIGNED(histogram,cl_uint4))
{
clStatus = clEnv->library->clEnqueueUnmapMemObject(queue, histogramBuffer, histogram, 0, NULL, NULL);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueUnmapMemObject failed.", ".");
goto cleanup;
}
}
/* recreate input buffer later, in case image updated */
#ifdef RECREATEBUFFER
if (imageBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageBuffer);
#endif
/* CPU stuff */
equalize_map=(PixelPacket *) AcquireQuantumMemory(MaxMap+1UL, sizeof(*equalize_map));
if (equalize_map == (PixelPacket *) NULL)
ThrowBinaryException(ResourceLimitWarning,"MemoryAllocationFailed", image->filename);
map=(cl_float4 *) AcquireQuantumMemory(MaxMap+1UL,sizeof(*map));
if (map == (cl_float4 *) NULL)
ThrowBinaryException(ResourceLimitWarning,"MemoryAllocationFailed", image->filename);
/*
Integrate the histogram to get the equalization map.
*/
(void) memset(&intensity,0,sizeof(intensity));
for (i=0; i <= (ssize_t) MaxMap; i++)
{
if ((image->channel_mask & SyncChannels) != 0)
{
intensity.x+=histogram[i].s[2];
map[i]=intensity;
continue;
}
if ((image->channel_mask & RedChannel) != 0)
intensity.x+=histogram[i].s[2];
if ((image->channel_mask & GreenChannel) != 0)
intensity.y+=histogram[i].s[1];
if ((image->channel_mask & BlueChannel) != 0)
intensity.z+=histogram[i].s[0];
if ((image->channel_mask & AlphaChannel) != 0)
intensity.w+=histogram[i].s[3];
map[i]=intensity;
}
black=map[0];
white=map[(int) MaxMap];
(void) memset(equalize_map,0,(MaxMap+1)*sizeof(*equalize_map));
for (i=0; i <= (ssize_t) MaxMap; i++)
{
if ((image->channel_mask & SyncChannels) != 0)
{
if (white.x != black.x)
equalize_map[i].red=ScaleMapToQuantum((MagickRealType) ((MaxMap*
(map[i].x-black.x))/(white.x-black.x)));
continue;
}
if (((image->channel_mask & RedChannel) != 0) && (white.x != black.x))
equalize_map[i].red=ScaleMapToQuantum((MagickRealType) ((MaxMap*
(map[i].x-black.x))/(white.x-black.x)));
if (((image->channel_mask & GreenChannel) != 0) && (white.y != black.y))
equalize_map[i].green=ScaleMapToQuantum((MagickRealType) ((MaxMap*
(map[i].y-black.y))/(white.y-black.y)));
if (((image->channel_mask & BlueChannel) != 0) && (white.z != black.z))
equalize_map[i].blue=ScaleMapToQuantum((MagickRealType) ((MaxMap*
(map[i].z-black.z))/(white.z-black.z)));
if (((image->channel_mask & AlphaChannel) != 0) && (white.w != black.w))
equalize_map[i].alpha=ScaleMapToQuantum((MagickRealType) ((MaxMap*
(map[i].w-black.w))/(white.w-black.w)));
}
if (image->storage_class == PseudoClass)
{
/*
Equalize colormap.
*/
for (i=0; i < (ssize_t) image->colors; i++)
{
if ((image->channel_mask & SyncChannels) != 0)
{
if (white.x != black.x)
{
image->colormap[i].red=equalize_map[
ScaleQuantumToMap(image->colormap[i].red)].red;
image->colormap[i].green=equalize_map[
ScaleQuantumToMap(image->colormap[i].green)].red;
image->colormap[i].blue=equalize_map[
ScaleQuantumToMap(image->colormap[i].blue)].red;
image->colormap[i].alpha=equalize_map[
ScaleQuantumToMap(image->colormap[i].alpha)].red;
}
continue;
}
if (((image->channel_mask & RedChannel) != 0) && (white.x != black.x))
image->colormap[i].red=equalize_map[
ScaleQuantumToMap(image->colormap[i].red)].red;
if (((image->channel_mask & GreenChannel) != 0) && (white.y != black.y))
image->colormap[i].green=equalize_map[
ScaleQuantumToMap(image->colormap[i].green)].green;
if (((image->channel_mask & BlueChannel) != 0) && (white.z != black.z))
image->colormap[i].blue=equalize_map[
ScaleQuantumToMap(image->colormap[i].blue)].blue;
if (((image->channel_mask & AlphaChannel) != 0) && (white.w != black.w))
image->colormap[i].alpha=equalize_map[
ScaleQuantumToMap(image->colormap[i].alpha)].alpha;
}
}
/*
Equalize image.
*/
/* GPU can work on this again, image and equalize map as input
image: uchar4 (CLPixelPacket)
equalize_map: uchar4 (PixelPacket)
black, white: float4 (FloatPixelPacket) */
#ifdef RECREATEBUFFER
/* If the host pointer is aligned to the size of CLPixelPacket,
then use the host buffer directly from the GPU; otherwise,
create a buffer on the GPU and copy the data over */
if (ALIGNED(inputPixels,CLPixelPacket))
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR;
}
else
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_COPY_HOST_PTR;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
imageBuffer = clEnv->library->clCreateBuffer(context, mem_flags, length * sizeof(CLPixelPacket), (void*)inputPixels, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
#endif
/* Create and initialize OpenCL buffers. */
if (ALIGNED(equalize_map, PixelPacket))
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR;
hostPtr = equalize_map;
}
else
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_COPY_HOST_PTR;
hostPtr = equalize_map;
}
/* create a CL buffer for eqaulize_map */
length = (MaxMap+1);
equalizeMapBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(PixelPacket), hostPtr, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
/* get the OpenCL kernel */
equalizeKernel = AcquireOpenCLKernel(device,"Equalize");
if (equalizeKernel == NULL)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "AcquireOpenCLKernel failed.", ".");
goto cleanup;
}
/* set the kernel arguments */
i = 0;
clStatus=clEnv->library->clSetKernelArg(equalizeKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
clStatus|=clEnv->library->clSetKernelArg(equalizeKernel,i++,sizeof(ChannelType),&image->channel_mask);
clStatus|=clEnv->library->clSetKernelArg(equalizeKernel,i++,sizeof(cl_mem),(void *)&equalizeMapBuffer);
clStatus|=clEnv->library->clSetKernelArg(equalizeKernel,i++,sizeof(cl_float4),&white);
clStatus|=clEnv->library->clSetKernelArg(equalizeKernel,i++,sizeof(cl_float4),&black);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
/* launch the kernel */
global_work_size[0] = image->columns;
global_work_size[1] = image->rows;
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, equalizeKernel, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,equalizeKernel,event);
/* read the data back */
if (ALIGNED(inputPixels,CLPixelPacket))
{
length = image->columns * image->rows;
clEnv->library->clEnqueueMapBuffer(queue, imageBuffer, CL_TRUE, CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(CLPixelPacket), 0, NULL, NULL, &clStatus);
}
else
{
length = image->columns * image->rows;
clStatus = clEnv->library->clEnqueueReadBuffer(queue, imageBuffer, CL_TRUE, 0, length * sizeof(CLPixelPacket), inputPixels, 0, NULL, NULL);
}
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "Reading output image from CL buffer failed.", ".");
goto cleanup;
}
outputReady=SyncCacheViewAuthenticPixels(image_view,exception);
cleanup:
image_view=DestroyCacheView(image_view);
if (imageBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageBuffer);
if (map!=NULL)
map=(cl_float4 *) RelinquishMagickMemory(map);
if (equalizeMapBuffer!=NULL)
clEnv->library->clReleaseMemObject(equalizeMapBuffer);
if (equalize_map!=NULL)
equalize_map=(PixelPacket *) RelinquishMagickMemory(equalize_map);
if (histogramBuffer!=NULL)
clEnv->library->clReleaseMemObject(histogramBuffer);
if (histogram!=NULL)
histogram=(cl_uint4 *) RelinquishMagickMemory(histogram);
if (histogramKernel!=NULL)
ReleaseOpenCLKernel(histogramKernel);
if (equalizeKernel!=NULL)
ReleaseOpenCLKernel(equalizeKernel);
if (queue != NULL)
ReleaseOpenCLCommandQueue(device, queue);
if (device != NULL)
ReleaseOpenCLDevice(device);
return(outputReady);
}
MagickPrivate MagickBooleanType AccelerateEqualizeImage(Image *image,
ExceptionInfo *exception)
{
MagickBooleanType
status;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if ((checkAccelerateConditionRGBA(image) == MagickFalse) ||
(checkHistogramCondition(image,image->intensity) == MagickFalse))
return(MagickFalse);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return(MagickFalse);
status=ComputeEqualizeImage(image,clEnv,exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e F u n c t i o n I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static MagickBooleanType ComputeFunctionImage(Image *image,MagickCLEnv clEnv,
const MagickFunction function,const size_t number_parameters,
const double *parameters,ExceptionInfo *exception)
{
cl_command_queue
queue;
cl_int
status;
cl_kernel
functionKernel;
cl_mem
imageBuffer,
parametersBuffer;
cl_uint
number_params,
number_channels;
float
*parametersBufferPtr;
MagickBooleanType
outputReady;
MagickCLDevice
device;
size_t
gsize[2],
i;
outputReady=MagickFalse;
imageBuffer=NULL;
functionKernel=NULL;
parametersBuffer=NULL;
device=RequestOpenCLDevice(clEnv);
queue=AcquireOpenCLCommandQueue(device);
imageBuffer=GetAuthenticOpenCLBuffer(image,device,exception);
if (imageBuffer == (cl_mem) NULL)
goto cleanup;
parametersBufferPtr=(float *) AcquireQuantumMemory(number_parameters,
sizeof(float));
if (parametersBufferPtr == (float *) NULL)
goto cleanup;
for (i=0; i<number_parameters; i++)
parametersBufferPtr[i]=(float) parameters[i];
parametersBuffer=CreateOpenCLBuffer(device,CL_MEM_READ_ONLY |
CL_MEM_COPY_HOST_PTR,number_parameters*sizeof(*parametersBufferPtr),
parametersBufferPtr);
parametersBufferPtr=RelinquishMagickMemory(parametersBufferPtr);
if (parametersBuffer == (cl_mem) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"CreateOpenCLBuffer failed.",".");
goto cleanup;
}
functionKernel=AcquireOpenCLKernel(device,"ComputeFunction");
if (functionKernel == (cl_kernel) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"AcquireOpenCLKernel failed.",".");
goto cleanup;
}
number_channels=(cl_uint) image->number_channels;
number_params=(cl_uint) number_parameters;
i=0;
status =SetOpenCLKernelArg(functionKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
status|=SetOpenCLKernelArg(functionKernel,i++,sizeof(cl_uint),(void *)&number_channels);
status|=SetOpenCLKernelArg(functionKernel,i++,sizeof(ChannelType),(void *)&image->channel_mask);
status|=SetOpenCLKernelArg(functionKernel,i++,sizeof(MagickFunction),(void *)&function);
status|=SetOpenCLKernelArg(functionKernel,i++,sizeof(cl_uint),(void *)&number_params);
status|=SetOpenCLKernelArg(functionKernel,i++,sizeof(cl_mem),(void *)&parametersBuffer);
if (status != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"SetOpenCLKernelArg failed.",".");
goto cleanup;
}
gsize[0]=image->columns;
gsize[1]=image->rows;
outputReady=EnqueueOpenCLKernel(queue,functionKernel,2,(const size_t *) NULL,
gsize,(const size_t *) NULL,image,(const Image *) NULL,MagickFalse,
exception);
cleanup:
if (imageBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(imageBuffer);
if (parametersBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(parametersBuffer);
if (functionKernel != (cl_kernel) NULL)
ReleaseOpenCLKernel(functionKernel);
if (queue != (cl_command_queue) NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != (MagickCLDevice) NULL)
ReleaseOpenCLDevice(device);
return(outputReady);
}
MagickPrivate MagickBooleanType AccelerateFunctionImage(Image *image,
const MagickFunction function,const size_t number_parameters,
const double *parameters,ExceptionInfo *exception)
{
MagickBooleanType
status;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if (checkAccelerateCondition(image) == MagickFalse)
return(MagickFalse);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return(MagickFalse);
status=ComputeFunctionImage(image,clEnv,function,number_parameters,
parameters,exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e G r a y s c a l e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static MagickBooleanType ComputeGrayscaleImage(Image *image,MagickCLEnv clEnv,
const PixelIntensityMethod method,ExceptionInfo *exception)
{
cl_command_queue
queue;
cl_int
status;
cl_kernel
grayscaleKernel;
cl_mem
imageBuffer;
cl_uint
number_channels,
colorspace,
intensityMethod;
MagickBooleanType
outputReady;
MagickCLDevice
device;
size_t
gsize[2],
i;
outputReady=MagickFalse;
imageBuffer=NULL;
grayscaleKernel=NULL;
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
device=RequestOpenCLDevice(clEnv);
queue=AcquireOpenCLCommandQueue(device);
imageBuffer=GetAuthenticOpenCLBuffer(image,device,exception);
if (imageBuffer == (cl_mem) NULL)
goto cleanup;
grayscaleKernel=AcquireOpenCLKernel(device,"Grayscale");
if (grayscaleKernel == (cl_kernel) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"AcquireOpenCLKernel failed.",".");
goto cleanup;
}
number_channels=(cl_uint) image->number_channels;
intensityMethod=(cl_uint) method;
colorspace=(cl_uint) image->colorspace;
i=0;
status =SetOpenCLKernelArg(grayscaleKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
status|=SetOpenCLKernelArg(grayscaleKernel,i++,sizeof(cl_uint),&number_channels);
status|=SetOpenCLKernelArg(grayscaleKernel,i++,sizeof(cl_uint),&colorspace);
status|=SetOpenCLKernelArg(grayscaleKernel,i++,sizeof(cl_uint),&intensityMethod);
if (status != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),
ResourceLimitWarning,"SetOpenCLKernelArg failed.",".");
goto cleanup;
}
gsize[0]=image->columns;
gsize[1]=image->rows;
outputReady=EnqueueOpenCLKernel(queue,grayscaleKernel,2,
(const size_t *) NULL,gsize,(const size_t *) NULL,image,(Image *) NULL,
MagickFalse,exception);
cleanup:
if (imageBuffer != (cl_mem) NULL)
ReleaseOpenCLMemObject(imageBuffer);
if (grayscaleKernel != (cl_kernel) NULL)
ReleaseOpenCLKernel(grayscaleKernel);
if (queue != (cl_command_queue) NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != (MagickCLDevice) NULL)
ReleaseOpenCLDevice(device);
return(outputReady);
}
MagickPrivate MagickBooleanType AccelerateGrayscaleImage(Image* image,
const PixelIntensityMethod method,ExceptionInfo *exception)
{
MagickBooleanType
status;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if ((checkAccelerateCondition(image) == MagickFalse) ||
(checkPixelIntensity(image,method) == MagickFalse))
return(MagickFalse);
if (image->number_channels < 3)
return(MagickFalse);
if ((GetPixelRedTraits(image) == UndefinedPixelTrait) ||
(GetPixelGreenTraits(image) == UndefinedPixelTrait) ||
(GetPixelBlueTraits(image) == UndefinedPixelTrait))
return(MagickFalse);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return(MagickFalse);
status=ComputeGrayscaleImage(image,clEnv,method,exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e L o c a l C o n t r a s t I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static Image *ComputeLocalContrastImage(const Image *image,MagickCLEnv clEnv,
const double radius,const double strength,ExceptionInfo *exception)
{
CacheView
*filteredImage_view,
*image_view;
cl_command_queue
queue;
cl_int
clStatus,
iRadius;
cl_kernel
blurRowKernel,
blurColumnKernel;
cl_event
event;
cl_mem
filteredImageBuffer,
imageBuffer,
imageKernelBuffer,
tempImageBuffer;
cl_mem_flags
mem_flags;
const void
*inputPixels;
Image
*filteredImage;
MagickBooleanType
outputReady;
MagickCLDevice
device;
MagickSizeType
length;
void
*filteredPixels,
*hostPtr;
unsigned int
i,
imageColumns,
imageRows,
passes;
filteredImage = NULL;
filteredImage_view = NULL;
imageBuffer = NULL;
filteredImageBuffer = NULL;
tempImageBuffer = NULL;
imageKernelBuffer = NULL;
blurRowKernel = NULL;
blurColumnKernel = NULL;
queue = NULL;
outputReady = MagickFalse;
device = RequestOpenCLDevice(clEnv);
queue = AcquireOpenCLCommandQueue(device);
/* Create and initialize OpenCL buffers. */
{
image_view=AcquireAuthenticCacheView(image,exception);
inputPixels=GetCacheViewAuthenticPixels(image_view,0,0,image->columns,image->rows,exception);
if (inputPixels == (const void *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),CacheWarning,"UnableToReadPixelCache.","`%s'",image->filename);
goto cleanup;
}
/* If the host pointer is aligned to the size of CLPixelPacket,
then use the host buffer directly from the GPU; otherwise,
create a buffer on the GPU and copy the data over */
if (ALIGNED(inputPixels,CLPixelPacket))
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR;
}
else
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_COPY_HOST_PTR;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
imageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), (void*)inputPixels, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
}
/* create output */
{
filteredImage = CloneImage(image,0,0,MagickTrue,exception);
assert(filteredImage != NULL);
if (SetImageStorageClass(filteredImage,DirectClass,exception) != MagickTrue)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "CloneImage failed.", ".");
goto cleanup;
}
filteredImage_view=AcquireAuthenticCacheView(filteredImage,exception);
filteredPixels=GetCacheViewAuthenticPixels(filteredImage_view,0,0,filteredImage->columns,filteredImage->rows,exception);
if (filteredPixels == (void *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),CacheWarning, "UnableToReadPixelCache.","`%s'",filteredImage->filename);
goto cleanup;
}
if (ALIGNED(filteredPixels,CLPixelPacket))
{
mem_flags = CL_MEM_WRITE_ONLY|CL_MEM_USE_HOST_PTR;
hostPtr = filteredPixels;
}
else
{
mem_flags = CL_MEM_WRITE_ONLY;
hostPtr = NULL;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
filteredImageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), hostPtr, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
}
{
/* create temp buffer */
{
length = image->columns * image->rows;
tempImageBuffer = clEnv->library->clCreateBuffer(device->context, CL_MEM_READ_WRITE, length * sizeof(float), NULL, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
}
/* get the opencl kernel */
{
blurRowKernel = AcquireOpenCLKernel(device,"LocalContrastBlurRow");
if (blurRowKernel == NULL)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "AcquireOpenCLKernel failed.", ".");
goto cleanup;
};
blurColumnKernel = AcquireOpenCLKernel(device,"LocalContrastBlurApplyColumn");
if (blurColumnKernel == NULL)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "AcquireOpenCLKernel failed.", ".");
goto cleanup;
};
}
{
imageColumns = (unsigned int) image->columns;
imageRows = (unsigned int) image->rows;
iRadius = (cl_int) (image->rows > image->columns ? image->rows : image->columns) * 0.002f * fabs(radius); /* Normalized radius, 100% gives blur radius of 20% of the largest dimension */
passes = (((1.0f * imageRows) * imageColumns * iRadius) + 3999999999) / 4000000000.0f;
passes = (passes < 1) ? 1: passes;
/* set the kernel arguments */
i = 0;
clStatus=clEnv->library->clSetKernelArg(blurRowKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
clStatus|=clEnv->library->clSetKernelArg(blurRowKernel,i++,sizeof(cl_mem),(void *)&filteredImageBuffer);
clStatus|=clEnv->library->clSetKernelArg(blurRowKernel,i++,sizeof(cl_mem),(void *)&tempImageBuffer);
clStatus|=clEnv->library->clSetKernelArg(blurRowKernel,i++,sizeof(cl_int),(void *)&iRadius);
clStatus|=clEnv->library->clSetKernelArg(blurRowKernel,i++,sizeof(unsigned int),(void *)&imageColumns);
clStatus|=clEnv->library->clSetKernelArg(blurRowKernel,i++,sizeof(unsigned int),(void *)&imageRows);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
}
/* launch the kernel */
{
int x;
for (x = 0; x < passes; ++x) {
size_t gsize[2];
size_t wsize[2];
size_t goffset[2];
gsize[0] = 256;
gsize[1] = (image->rows + passes - 1) / passes;
wsize[0] = 256;
wsize[1] = 1;
goffset[0] = 0;
goffset[1] = x * gsize[1];
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, blurRowKernel, 2, goffset, gsize, wsize, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
clEnv->library->clFlush(queue);
RecordProfileData(device,blurRowKernel,event);
}
}
{
cl_float FStrength = strength;
i = 0;
clStatus=clEnv->library->clSetKernelArg(blurColumnKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
clStatus|=clEnv->library->clSetKernelArg(blurColumnKernel,i++,sizeof(cl_mem),(void *)&filteredImageBuffer);
clStatus|=clEnv->library->clSetKernelArg(blurColumnKernel,i++,sizeof(cl_mem),(void *)&tempImageBuffer);
clStatus|=clEnv->library->clSetKernelArg(blurColumnKernel,i++,sizeof(unsigned int),(void *)&iRadius);
clStatus|=clEnv->library->clSetKernelArg(blurColumnKernel,i++,sizeof(cl_float),(void *)&FStrength);
clStatus|=clEnv->library->clSetKernelArg(blurColumnKernel,i++,sizeof(unsigned int),(void *)&imageColumns);
clStatus|=clEnv->library->clSetKernelArg(blurColumnKernel,i++,sizeof(unsigned int),(void *)&imageRows);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
}
/* launch the kernel */
{
int x;
for (x = 0; x < passes; ++x) {
size_t gsize[2];
size_t wsize[2];
size_t goffset[2];
gsize[0] = ((image->columns + 3) / 4) * 4;
gsize[1] = ((((image->rows + 63) / 64) + (passes + 1)) / passes) * 64;
wsize[0] = 4;
wsize[1] = 64;
goffset[0] = 0;
goffset[1] = x * gsize[1];
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, blurColumnKernel, 2, goffset, gsize, wsize, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
clEnv->library->clFlush(queue);
RecordProfileData(device,blurColumnKernel,event);
}
}
}
/* get result */
if (ALIGNED(filteredPixels,CLPixelPacket))
{
length = image->columns * image->rows;
clEnv->library->clEnqueueMapBuffer(queue, filteredImageBuffer, CL_TRUE, CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(CLPixelPacket), 0, NULL, NULL, &clStatus);
}
else
{
length = image->columns * image->rows;
clStatus = clEnv->library->clEnqueueReadBuffer(queue, filteredImageBuffer, CL_TRUE, 0, length * sizeof(CLPixelPacket), filteredPixels, 0, NULL, NULL);
}
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "Reading output image from CL buffer failed.", ".");
goto cleanup;
}
outputReady=SyncCacheViewAuthenticPixels(filteredImage_view,exception);
cleanup:
image_view=DestroyCacheView(image_view);
if (filteredImage_view != NULL)
filteredImage_view=DestroyCacheView(filteredImage_view);
if (imageBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageBuffer);
if (filteredImageBuffer!=NULL)
clEnv->library->clReleaseMemObject(filteredImageBuffer);
if (tempImageBuffer!=NULL)
clEnv->library->clReleaseMemObject(tempImageBuffer);
if (imageKernelBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageKernelBuffer);
if (blurRowKernel!=NULL)
ReleaseOpenCLKernel(blurRowKernel);
if (blurColumnKernel!=NULL)
ReleaseOpenCLKernel(blurColumnKernel);
if (queue != NULL)
ReleaseOpenCLCommandQueue(device, queue);
if (device != NULL)
ReleaseOpenCLDevice(device);
if (outputReady == MagickFalse)
{
if (filteredImage != NULL)
{
DestroyImage(filteredImage);
filteredImage = NULL;
}
}
return(filteredImage);
}
MagickPrivate Image *AccelerateLocalContrastImage(const Image *image,
const double radius,const double strength,ExceptionInfo *exception)
{
Image
*filteredImage;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if (checkAccelerateConditionRGBA(image) == MagickFalse)
return((Image *) NULL);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return((Image *) NULL);
filteredImage=ComputeLocalContrastImage(image,clEnv,radius,strength,
exception);
return(filteredImage);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e M o d u l a t e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static MagickBooleanType ComputeModulateImage(Image *image,MagickCLEnv clEnv,
const double percent_brightness,const double percent_hue,
const double percent_saturation,const ColorspaceType colorspace,
ExceptionInfo *exception)
{
CacheView
*image_view;
cl_float
bright,
hue,
saturation;
cl_command_queue
queue;
cl_int
color,
clStatus;
cl_kernel
modulateKernel;
cl_event
event;
cl_mem
imageBuffer;
cl_mem_flags
mem_flags;
MagickBooleanType
outputReady;
MagickCLDevice
device;
MagickSizeType
length;
register ssize_t
i;
void
*inputPixels;
inputPixels = NULL;
imageBuffer = NULL;
modulateKernel = NULL;
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
/*
* initialize opencl env
*/
device = RequestOpenCLDevice(clEnv);
queue = AcquireOpenCLCommandQueue(device);
outputReady = MagickFalse;
/* Create and initialize OpenCL buffers.
inputPixels = AcquirePixelCachePixels(image, &length, exception);
assume this will get a writable image
*/
image_view=AcquireAuthenticCacheView(image,exception);
inputPixels=GetCacheViewAuthenticPixels(image_view,0,0,image->columns,image->rows,exception);
if (inputPixels == (void *) NULL)
{
(void) OpenCLThrowMagickException(device,exception,GetMagickModule(),CacheWarning,"UnableToReadPixelCache.","`%s'",image->filename);
goto cleanup;
}
/* If the host pointer is aligned to the size of CLPixelPacket,
then use the host buffer directly from the GPU; otherwise,
create a buffer on the GPU and copy the data over
*/
if (ALIGNED(inputPixels,CLPixelPacket))
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR;
}
else
{
mem_flags = CL_MEM_READ_WRITE|CL_MEM_COPY_HOST_PTR;
}
/* create a CL buffer from image pixel buffer */
length = image->columns * image->rows;
imageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags, length * sizeof(CLPixelPacket), (void*)inputPixels, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
modulateKernel = AcquireOpenCLKernel(device, "Modulate");
if (modulateKernel == NULL)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "AcquireOpenCLKernel failed.", ".");
goto cleanup;
}
bright=percent_brightness;
hue=percent_hue;
saturation=percent_saturation;
color=colorspace;
i = 0;
clStatus=clEnv->library->clSetKernelArg(modulateKernel,i++,sizeof(cl_mem),(void *)&imageBuffer);
clStatus|=clEnv->library->clSetKernelArg(modulateKernel,i++,sizeof(cl_float),&bright);
clStatus|=clEnv->library->clSetKernelArg(modulateKernel,i++,sizeof(cl_float),&hue);
clStatus|=clEnv->library->clSetKernelArg(modulateKernel,i++,sizeof(cl_float),&saturation);
clStatus|=clEnv->library->clSetKernelArg(modulateKernel,i++,sizeof(cl_float),&color);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
{
size_t global_work_size[2];
global_work_size[0] = image->columns;
global_work_size[1] = image->rows;
/* launch the kernel */
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, modulateKernel, 2, NULL, global_work_size, NULL, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,modulateKernel,event);
}
if (ALIGNED(inputPixels,CLPixelPacket))
{
length = image->columns * image->rows;
clEnv->library->clEnqueueMapBuffer(queue, imageBuffer, CL_TRUE, CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(CLPixelPacket), 0, NULL, NULL, &clStatus);
}
else
{
length = image->columns * image->rows;
clStatus = clEnv->library->clEnqueueReadBuffer(queue, imageBuffer, CL_TRUE, 0, length * sizeof(CLPixelPacket), inputPixels, 0, NULL, NULL);
}
if (clStatus != CL_SUCCESS)
{
(void) OpenCLThrowMagickException(device,exception, GetMagickModule(), ResourceLimitWarning, "Reading output image from CL buffer failed.", ".");
goto cleanup;
}
outputReady=SyncCacheViewAuthenticPixels(image_view,exception);
cleanup:
image_view=DestroyCacheView(image_view);
if (imageBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageBuffer);
if (modulateKernel!=NULL)
ReleaseOpenCLKernel(modulateKernel);
if (queue != NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != NULL)
ReleaseOpenCLDevice(device);
return outputReady;
}
MagickPrivate MagickBooleanType AccelerateModulateImage(Image *image,
const double percent_brightness,const double percent_hue,
const double percent_saturation,const ColorspaceType colorspace,
ExceptionInfo *exception)
{
MagickBooleanType
status;
MagickCLEnv
clEnv;
assert(image != NULL);
assert(exception != (ExceptionInfo *) NULL);
if (checkAccelerateConditionRGBA(image) == MagickFalse)
return(MagickFalse);
if ((colorspace != HSLColorspace) && (colorspace != UndefinedColorspace))
return(MagickFalse);
clEnv=getOpenCLEnvironment(exception);
if (clEnv == (MagickCLEnv) NULL)
return(MagickFalse);
status=ComputeModulateImage(image,clEnv,percent_brightness,percent_hue,
percent_saturation,colorspace,exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c c e l e r a t e M o t i o n B l u r I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
static Image* ComputeMotionBlurImage(const Image *image,MagickCLEnv clEnv,
const double *kernel,const size_t width,const OffsetInfo *offset,
ExceptionInfo *exception)
{
CacheView
*filteredImage_view,
*image_view;
cl_command_queue
queue;
cl_float4
biasPixel;
cl_int
clStatus;
cl_kernel
motionBlurKernel;
cl_event
event;
cl_mem
filteredImageBuffer,
imageBuffer,
imageKernelBuffer,
offsetBuffer;
cl_mem_flags
mem_flags;
const void
*inputPixels;
float
*kernelBufferPtr;
Image
*filteredImage;
int
*offsetBufferPtr;
MagickBooleanType
outputReady;
MagickCLDevice
device;
PixelInfo
bias;
MagickSizeType
length;
size_t
global_work_size[2],
local_work_size[2];
unsigned int
i,
imageHeight,
imageWidth,
matte;
void
*filteredPixels,
*hostPtr;
outputReady = MagickFalse;
filteredImage = NULL;
filteredImage_view = NULL;
imageBuffer = NULL;
filteredImageBuffer = NULL;
imageKernelBuffer = NULL;
motionBlurKernel = NULL;
queue = NULL;
device = RequestOpenCLDevice(clEnv);
/* Create and initialize OpenCL buffers. */
image_view=AcquireAuthenticCacheView(image,exception);
inputPixels=GetCacheViewAuthenticPixels(image_view,0,0,image->columns,image->rows,exception);
if (inputPixels == (const void *) NULL)
{
(void) ThrowMagickException(exception,GetMagickModule(),CacheError,
"UnableToReadPixelCache.","`%s'",image->filename);
goto cleanup;
}
/*
If the host pointer is aligned to the size of CLPixelPacket, then use
the host buffer directly from the GPU; otherwise, create a buffer on
the GPU and copy the data over
*/
if (ALIGNED(inputPixels,CLPixelPacket))
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR;
}
else
{
mem_flags = CL_MEM_READ_ONLY|CL_MEM_COPY_HOST_PTR;
}
/*
create a CL buffer from image pixel buffer
*/
length = image->columns * image->rows;
imageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags,
length * sizeof(CLPixelPacket), (void*)inputPixels, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(),
ResourceLimitError, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
filteredImage = CloneImage(image,image->columns,image->rows,
MagickTrue,exception);
assert(filteredImage != NULL);
if (SetImageStorageClass(filteredImage,DirectClass,exception) != MagickTrue)
{
(void) ThrowMagickException(exception, GetMagickModule(),
ResourceLimitError, "CloneImage failed.", ".");
goto cleanup;
}
filteredImage_view=AcquireAuthenticCacheView(filteredImage,exception);
filteredPixels=GetCacheViewAuthenticPixels(filteredImage_view,0,0,filteredImage->columns,filteredImage->rows,exception);
if (filteredPixels == (void *) NULL)
{
(void) ThrowMagickException(exception,GetMagickModule(),CacheError,
"UnableToReadPixelCache.","`%s'",filteredImage->filename);
goto cleanup;
}
if (ALIGNED(filteredPixels,CLPixelPacket))
{
mem_flags = CL_MEM_WRITE_ONLY|CL_MEM_USE_HOST_PTR;
hostPtr = filteredPixels;
}
else
{
mem_flags = CL_MEM_WRITE_ONLY;
hostPtr = NULL;
}
/*
Create a CL buffer from image pixel buffer.
*/
length = image->columns * image->rows;
filteredImageBuffer = clEnv->library->clCreateBuffer(device->context, mem_flags,
length * sizeof(CLPixelPacket), hostPtr, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(),
ResourceLimitError, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
imageKernelBuffer = clEnv->library->clCreateBuffer(device->context,
CL_MEM_READ_ONLY|CL_MEM_ALLOC_HOST_PTR, width * sizeof(float), NULL,
&clStatus);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(),
ResourceLimitError, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
queue = AcquireOpenCLCommandQueue(device);
kernelBufferPtr = (float*)clEnv->library->clEnqueueMapBuffer(queue, imageKernelBuffer,
CL_TRUE, CL_MAP_WRITE, 0, width * sizeof(float), 0, NULL, NULL, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(),
ResourceLimitError, "clEnv->library->clEnqueueMapBuffer failed.",".");
goto cleanup;
}
for (i = 0; i < width; i++)
{
kernelBufferPtr[i] = (float) kernel[i];
}
clStatus = clEnv->library->clEnqueueUnmapMemObject(queue, imageKernelBuffer, kernelBufferPtr,
0, NULL, NULL);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(), ModuleFatalError,
"clEnv->library->clEnqueueUnmapMemObject failed.", ".");
goto cleanup;
}
offsetBuffer = clEnv->library->clCreateBuffer(device->context,
CL_MEM_READ_ONLY|CL_MEM_ALLOC_HOST_PTR, width * sizeof(cl_int2), NULL,
&clStatus);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(),
ResourceLimitError, "clEnv->library->clCreateBuffer failed.",".");
goto cleanup;
}
offsetBufferPtr = (int*)clEnv->library->clEnqueueMapBuffer(queue, offsetBuffer, CL_TRUE,
CL_MAP_WRITE, 0, width * sizeof(cl_int2), 0, NULL, NULL, &clStatus);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(),
ResourceLimitError, "clEnv->library->clEnqueueMapBuffer failed.",".");
goto cleanup;
}
for (i = 0; i < width; i++)
{
offsetBufferPtr[2*i] = (int)offset[i].x;
offsetBufferPtr[2*i+1] = (int)offset[i].y;
}
clStatus = clEnv->library->clEnqueueUnmapMemObject(queue, offsetBuffer, offsetBufferPtr, 0,
NULL, NULL);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(), ModuleFatalError,
"clEnv->library->clEnqueueUnmapMemObject failed.", ".");
goto cleanup;
}
/*
Get the OpenCL kernel
*/
motionBlurKernel = AcquireOpenCLKernel(device,"MotionBlur");
if (motionBlurKernel == NULL)
{
(void) ThrowMagickException(exception, GetMagickModule(), ModuleFatalError,
"AcquireOpenCLKernel failed.", ".");
goto cleanup;
}
/*
Set the kernel arguments.
*/
i = 0;
clStatus=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(cl_mem),
(void *)&imageBuffer);
clStatus|=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(cl_mem),
(void *)&filteredImageBuffer);
imageWidth = (unsigned int) image->columns;
imageHeight = (unsigned int) image->rows;
clStatus|=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(unsigned int),
&imageWidth);
clStatus|=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(unsigned int),
&imageHeight);
clStatus|=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(cl_mem),
(void *)&imageKernelBuffer);
clStatus|=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(unsigned int),
&width);
clStatus|=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(cl_mem),
(void *)&offsetBuffer);
GetPixelInfo(image,&bias);
biasPixel.s[0] = bias.red;
biasPixel.s[1] = bias.green;
biasPixel.s[2] = bias.blue;
biasPixel.s[3] = bias.alpha;
clStatus|=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(cl_float4), &biasPixel);
clStatus|=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(ChannelType), &image->channel_mask);
matte = (image->alpha_trait > CopyPixelTrait)?1:0;
clStatus|=clEnv->library->clSetKernelArg(motionBlurKernel,i++,sizeof(unsigned int), &matte);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(), ModuleFatalError,
"clEnv->library->clSetKernelArg failed.", ".");
goto cleanup;
}
/*
Launch the kernel.
*/
local_work_size[0] = 16;
local_work_size[1] = 16;
global_work_size[0] = (size_t)padGlobalWorkgroupSizeToLocalWorkgroupSize(
(unsigned int) image->columns,(unsigned int) local_work_size[0]);
global_work_size[1] = (size_t)padGlobalWorkgroupSizeToLocalWorkgroupSize(
(unsigned int) image->rows,(unsigned int) local_work_size[1]);
clStatus = clEnv->library->clEnqueueNDRangeKernel(queue, motionBlurKernel, 2, NULL,
global_work_size, local_work_size, 0, NULL, &event);
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(), ModuleFatalError,
"clEnv->library->clEnqueueNDRangeKernel failed.", ".");
goto cleanup;
}
RecordProfileData(device,motionBlurKernel,event);
if (ALIGNED(filteredPixels,CLPixelPacket))
{
length = image->columns * image->rows;
clEnv->library->clEnqueueMapBuffer(queue, filteredImageBuffer, CL_TRUE,
CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(CLPixelPacket), 0, NULL,
NULL, &clStatus);
}
else
{
length = image->columns * image->rows;
clStatus = clEnv->library->clEnqueueReadBuffer(queue, filteredImageBuffer, CL_TRUE, 0,
length * sizeof(CLPixelPacket), filteredPixels, 0, NULL, NULL);
}
if (clStatus != CL_SUCCESS)
{
(void) ThrowMagickException(exception, GetMagickModule(), ModuleFatalError,
"Reading output image from CL buffer failed.", ".");
goto cleanup;
}
outputReady=SyncCacheViewAuthenticPixels(filteredImage_view,exception);
cleanup:
image_view=DestroyCacheView(image_view);
if (filteredImage_view != NULL)
filteredImage_view=DestroyCacheView(filteredImage_view);
if (filteredImageBuffer!=NULL)
clEnv->library->clReleaseMemObject(filteredImageBuffer);
if (imageBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageBuffer);
if (imageKernelBuffer!=NULL)
clEnv->library->clReleaseMemObject(imageKernelBuffer);
if (motionBlurKernel!=NULL)
ReleaseOpenCLKernel(motionBlurKernel);
if (queue != NULL)
ReleaseOpenCLCommandQueue(device,queue);
if (device != NULL)
ReleaseOpenCLDevice(device);
if (outputReady == MagickFalse && filteredImage != NULL)
filteredImage=DestroyImage(filteredImage);
return(filteredImage);
}