/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- IsFPX
- ReadFPXImage
- ReadFPXImage
- RegisterFPXImage
- UnregisterFPXImage
- ColorTwistMultiply
- SetBrightness
- SetColorBalance
- SetSaturation
- WriteFPXImage
- WriteFPXImage
/*
% Copyright (C) 2003 GraphicsMagick Group
% Copyright (C) 2002 ImageMagick Studio
% Copyright 1991-1999 E. I. du Pont de Nemours and Company
%
% This program is covered by multiple licenses, which are described in
% Copyright.txt. You should have received a copy of Copyright.txt with this
% package; otherwise see http://www.graphicsmagick.org/www/Copyright.html.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% FFFFF PPPP X X %
% F P P X X %
% FFF PPPP X %
% F P X X %
% F P X X %
% %
% %
% Read/Write FlashPIX Image Format. %
% %
% %
% Software Design %
% John Cristy %
% July 1992 %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/
/*
Include declarations.
*/
#include "magick/studio.h"
#include "magick/analyze.h"
#include "magick/attribute.h"
#include "magick/blob.h"
#include "magick/colormap.h"
#include "magick/constitute.h"
#include "magick/magick.h"
#include "magick/monitor.h"
#include "magick/pixel_cache.h"
#include "magick/utility.h"
#if defined(HasFPX)
# if defined(POSIX)
# include <fpxlib.h>
# else
# include "Fpxlib.h"
# endif
#endif
/*
Forward declarations.
*/
static unsigned int
WriteFPXImage(const ImageInfo *,Image *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I s F P X %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Method IsFPX returns True if the image format type, identified by the
% magick string, is FPX.
%
% The format of the IsFPX method is:
%
% unsigned int IsFPX(const unsigned char *magick,const size_t length)
%
% A description of each parameter follows:
%
% o status: Method IsFPX returns True if the image format type is FPX.
%
% o magick: This string is generally the first few bytes of an image file
% or blob.
%
% o length: Specifies the length of the magick string.
%
%
*/
static unsigned int IsFPX(const unsigned char *magick,const size_t length)
{
if (length < 4)
return(False);
if (memcmp(magick,"\320\317\021\340",4) == 0)
return(True);
return(False);
}
#if defined(HasFPX)
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d F P X I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Method ReadFPXImage reads a FlashPix image file and returns it. It
% allocates the memory necessary for the new Image structure and returns a
% pointer to the new image. This method was contributed by BillR@corbis.com.
%
% The format of the ReadFPXImage method is:
%
% Image *ReadFPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image: Method ReadFPXImage returns a pointer to the image after
% reading. A null image is returned if there is a memory shortage or if
% the image cannot be read.
%
% o image_info: Specifies a pointer to a ImageInfo structure.
%
% o exception: return any errors or warnings in this structure.
%
%
*/
static Image *ReadFPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
FPXColorspace
colorspace;
FPXImageComponentDesc
*alpha_component,
*blue_component,
*green_component,
*red_component;
FPXImageDesc
fpx_info;
FPXImageHandle
*flashpix;
FPXStatus
fpx_status;
FPXSummaryInformation
summary_info;
Image
*image;
IndexPacket
index;
long
y;
register IndexPacket
*indexes;
register long
i,
x;
register PixelPacket
*q;
register unsigned char
*a,
*b,
*g,
*r;
unsigned char
*scanline;
unsigned int
status,
subimage,
height,
tile_width,
tile_height,
width;
size_t
memory_limit;
/*
Open image.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AllocateImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == False)
ThrowReaderException(FileOpenError,UnableToOpenFile,image);
CloseBlob(image);
/*
Initialize FPX toolkit.
*/
fpx_status=FPX_InitSystem();
if (fpx_status != FPX_OK)
{
ThrowReaderException(CoderError,UnableToInitializeFPXLibrary,image);
}
memory_limit=20000000;
fpx_status=FPX_SetToolkitMemoryLimit(&memory_limit);
if (fpx_status != FPX_OK)
{
FPX_ClearSystem();
ThrowReaderException(CoderError,UnableToInitializeFPXLibrary,image);
}
tile_width=64;
tile_height=64;
flashpix=(FPXImageHandle *) NULL;
{
fpx_status=FPX_OpenImageByFilename(image->filename,(char *) NULL,
&width,&height,&tile_width,&tile_height,&colorspace,&flashpix);
}
if (fpx_status == FPX_LOW_MEMORY_ERROR)
{
FPX_ClearSystem();
ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,image);
}
if (fpx_status != FPX_OK)
{
FPX_ClearSystem();
ThrowReaderException(FileOpenError,UnableToOpenFile,image);
}
if (image_info->view == (char *) NULL)
{
float
aspect_ratio;
/*
Get the aspect ratio.
*/
aspect_ratio=(float) width/height;
fpx_status=FPX_GetImageResultAspectRatio(flashpix,&aspect_ratio);
if (fpx_status != FPX_OK)
ThrowReaderException(CoderError,UnableToReadAspectRatio,image);
if (width != (unsigned long) ((aspect_ratio*height)+0.5))
Swap(width,height);
}
fpx_status=FPX_GetSummaryInformation(flashpix,&summary_info);
if (fpx_status != FPX_OK)
{
FPX_ClearSystem();
ThrowReaderException(CoderError,UnableToReadSummaryInfo,image);
}
if (summary_info.title_valid)
if ((summary_info.title.length != 0) &&
(summary_info.title.ptr != (unsigned char *) NULL))
{
char
*label;
/*
Note image label.
*/
label=MagickAllocateMemory(char *,summary_info.title.length+1);
if (label == (char *) NULL)
{
FPX_ClearSystem();
ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,
image);
}
(void) strlcpy(label,(char *) summary_info.title.ptr,
summary_info.title.length+1);
(void) SetImageAttribute(image,"label",label);
MagickFreeMemory(label);
}
if (summary_info.comments_valid)
if ((summary_info.comments.length != 0) &&
(summary_info.comments.ptr != (unsigned char *) NULL))
{
char
*comments;
/*
Note image comment.
*/
comments=MagickAllocateMemory(char *,summary_info.comments.length+1);
if (comments == (char *) NULL)
{
FPX_ClearSystem();
ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,
image);
}
(void) strlcpy(comments,(char *) summary_info.comments.ptr,
summary_info.comments.length+1);
(void) SetImageAttribute(image,"comment",comments);
MagickFreeMemory(comments);
}
/*
Determine resolution by subimage specification.
*/
for (i=1; ; i++)
if (((width >> i) < tile_width) || ((height >> i) < tile_height))
break;
subimage=i;
if (image_info->subrange != 0)
while (subimage > image_info->subimage)
{
width>>=1;
height>>=1;
subimage--;
}
if (image_info->size != (char *) NULL)
while ((width > image->columns) || (height > image->rows))
{
width>>=1;
height>>=1;
subimage--;
}
image->depth=8;
image->columns=width;
image->rows=height;
if ((colorspace.numberOfComponents % 2) == 0)
image->matte=True;
if (colorspace.numberOfComponents == 1)
{
/*
Create linear colormap.
*/
if (!AllocateImageColormap(image,MaxColormapSize))
{
FPX_ClearSystem();
ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,
image);
}
}
if (image_info->ping)
{
(void) FPX_CloseImage(flashpix);
FPX_ClearSystem();
return(image);
}
/*
Allocate memory for the image and pixel buffer.
*/
scanline=MagickAllocateMemory(unsigned char *,colorspace.numberOfComponents*
image->columns*(tile_height+1));
if (scanline == (unsigned char *) NULL)
{
FPX_ClearSystem();
(void) FPX_CloseImage(flashpix);
ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,image);
}
/*
Initialize FlashPix image description.
*/
fpx_info.numberOfComponents=colorspace.numberOfComponents;
for (i=0; i < 4; i++)
{
fpx_info.components[i].myColorType.myDataType=DATA_TYPE_UNSIGNED_BYTE;
fpx_info.components[i].horzSubSampFactor=1;
fpx_info.components[i].vertSubSampFactor=1;
fpx_info.components[i].columnStride=fpx_info.numberOfComponents;
fpx_info.components[i].lineStride=
image->columns*fpx_info.components[i].columnStride;
fpx_info.components[i].theData=scanline+i;
}
fpx_info.components[0].myColorType.myColor=
fpx_info.numberOfComponents > 2 ? NIFRGB_R : MONOCHROME;
red_component=(&fpx_info.components[0]);
fpx_info.components[1].myColorType.myColor=
fpx_info.numberOfComponents > 2 ? NIFRGB_G : ALPHA;
green_component=(&fpx_info.components[1]);
fpx_info.components[2].myColorType.myColor=NIFRGB_B;
blue_component=(&fpx_info.components[2]);
fpx_info.components[3].myColorType.myColor=ALPHA;
alpha_component=(&fpx_info.components[fpx_info.numberOfComponents-1]);
FPX_SetResampleMethod(FPX_LINEAR_INTERPOLATION);
/*
Initialize image pixels.
*/
for (y=0; y < (long) image->rows; y++)
{
q=SetImagePixels(image,0,y,image->columns,1);
if (q == (PixelPacket *) NULL)
break;
indexes=GetIndexes(image);
if ((y % tile_height) == 0)
{
/*
Read FPX image tile (with or without viewing affine)..
*/
if (image_info->view != (char *) NULL)
fpx_status=FPX_ReadImageRectangle(flashpix,0,y,image->columns,y+
tile_height-1,subimage,&fpx_info);
else
fpx_status=FPX_ReadImageTransformRectangle(flashpix,0.0F,
(float) y/image->rows,(float) image->columns/image->rows,
(float) (y+tile_height-1)/image->rows,(long) image->columns,
(long) tile_height,&fpx_info);
if (fpx_status == FPX_LOW_MEMORY_ERROR)
{
MagickFreeMemory(scanline);
(void) FPX_CloseImage(flashpix);
FPX_ClearSystem();
ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,
image);
}
}
/*
Transfer a FPX scanline.
*/
r=red_component->theData+(y % tile_height)*red_component->lineStride;
g=green_component->theData+(y % tile_height)*green_component->lineStride;
b=blue_component->theData+(y % tile_height)*blue_component->lineStride;
a=alpha_component->theData+(y % tile_height)*alpha_component->lineStride;
for (x=0; x < (long) image->columns; x++)
{
if (fpx_info.numberOfComponents > 2)
{
q->red=ScaleCharToQuantum(*r);
q->green=ScaleCharToQuantum(*g);
q->blue=ScaleCharToQuantum(*b);
}
else
{
index=ScaleCharToQuantum(*r);
indexes[x]=index;
q->red=index;
q->green=index;
q->blue=index;
}
if (image->matte)
q->opacity=ScaleCharToQuantum(255-*a);
q++;
r+=red_component->columnStride;
g+=green_component->columnStride;
b+=blue_component->columnStride;
a+=alpha_component->columnStride;
}
if (!SyncImagePixels(image))
break;
if (QuantumTick(y,image->rows))
if (!MagickMonitor(LoadImageText,y,image->rows,exception))
break;
}
MagickFreeMemory(scanline);
(void) FPX_CloseImage(flashpix);
FPX_ClearSystem();
return(image);
}
#else
static Image *ReadFPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
ThrowException(exception,MissingDelegateError,FPXLibraryIsNotAvailable,
image_info->filename);
return((Image *) NULL);
}
#endif
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r F P X I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Method RegisterFPXImage adds attributes for the FPX image format to
% the list of supported formats. The attributes include the image format
% tag, a method to read and/or write the format, whether the format
% supports the saving of more than one frame to the same file or blob,
% whether the format supports native in-memory I/O, and a brief
% description of the format.
%
% The format of the RegisterFPXImage method is:
%
% RegisterFPXImage(void)
%
*/
ModuleExport void RegisterFPXImage(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("FPX");
entry->decoder=(DecoderHandler) ReadFPXImage;
entry->encoder=(EncoderHandler) WriteFPXImage;
entry->adjoin=False;
entry->seekable_stream=True;
entry->blob_support=False;
entry->magick=(MagickHandler) IsFPX;
entry->description="FlashPix Format";
entry->module="FPX";
(void) RegisterMagickInfo(entry);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r F P X I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Method UnregisterFPXImage removes format registrations made by the
% FPX module from the list of supported formats.
%
% The format of the UnregisterFPXImage method is:
%
% UnregisterFPXImage(void)
%
*/
ModuleExport void UnregisterFPXImage(void)
{
(void) UnregisterMagickInfo("FPX");
}
#if defined(HasFPX)
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e F P X I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Method WriteFPXImage writes an image in the FlashPix image format. This
% method was contributed by BillR@corbis.com.
%
% The format of the WriteFPXImage method is:
%
% unsigned int WriteFPXImage(const ImageInfo *image_info,Image *image)
%
% A description of each parameter follows.
%
% o fpx_status: Method WriteFPXImage return True if the image is written.
% False is returned is there is a memory shortage or if the image file
% fails to write.
%
% o image_info: Specifies a pointer to a ImageInfo structure.
%
% o image: A pointer to an Image structure.
%
%
*/
static void ColorTwistMultiply(FPXColorTwistMatrix first,
FPXColorTwistMatrix second,FPXColorTwistMatrix *color_twist)
{
/*
Matrix multiply.
*/
assert(color_twist != (FPXColorTwistMatrix *) NULL);
color_twist->byy=(first.byy*second.byy)+(first.byc1*second.bc1y)+
(first.byc2*second.bc2y)+(first.dummy1_zero*second.dummy4_zero);
color_twist->byc1=(first.byy*second.byc1)+(first.byc1*second.bc1c1)+
(first.byc2*second.bc2c1)+(first.dummy1_zero*second.dummy5_zero);
color_twist->byc2=(first.byy*second.byc2)+(first.byc1*second.bc1c2)+
(first.byc2*second.bc2c2)+(first.dummy1_zero*second.dummy6_zero);
color_twist->dummy1_zero=(first.byy*second.dummy1_zero)+
(first.byc1*second.dummy2_zero)+(first.byc2*second.dummy3_zero)+
(first.dummy1_zero*second.dummy7_one);
color_twist->bc1y=(first.bc1y*second.byy)+(first.bc1c1*second.bc1y)+
(first.bc1c2*second.bc2y)+(first.dummy2_zero*second.dummy4_zero);
color_twist->bc1c1=(first.bc1y*second.byc1)+(first.bc1c1*second.bc1c1)+
(first.bc1c2*second.bc2c1)+(first.dummy2_zero*second.dummy5_zero);
color_twist->bc1c2=(first.bc1y*second.byc2)+(first.bc1c1*second.bc1c2)+
(first.bc1c2*second.bc2c2)+(first.dummy2_zero*second.dummy6_zero);
color_twist->dummy2_zero=(first.bc1y*second.dummy1_zero)+
(first.bc1c1*second.dummy2_zero)+(first.bc1c2*second.dummy3_zero)+
(first.dummy2_zero*second.dummy7_one);
color_twist->bc2y=(first.bc2y*second.byy)+(first.bc2c1*second.bc1y)+
(first.bc2c2*second.bc2y)+(first.dummy3_zero*second.dummy4_zero);
color_twist->bc2c1=(first.bc2y*second.byc1)+(first.bc2c1*second.bc1c1)+
(first.bc2c2*second.bc2c1)+(first.dummy3_zero*second.dummy5_zero);
color_twist->bc2c2=(first.bc2y*second.byc2)+(first.bc2c1*second.bc1c2)+
(first.bc2c2*second.bc2c2)+(first.dummy3_zero*second.dummy6_zero);
color_twist->dummy3_zero=(first.bc2y*second.dummy1_zero)+
(first.bc2c1*second.dummy2_zero)+(first.bc2c2*second.dummy3_zero)+
(first.dummy3_zero*second.dummy7_one);
color_twist->dummy4_zero=(first.dummy4_zero*second.byy)+
(first.dummy5_zero*second.bc1y)+(first.dummy6_zero*second.bc2y)+
(first.dummy7_one*second.dummy4_zero);
color_twist->dummy5_zero=(first.dummy4_zero*second.byc1)+
(first.dummy5_zero*second.bc1c1)+(first.dummy6_zero*second.bc2c1)+
(first.dummy7_one*second.dummy5_zero);
color_twist->dummy6_zero=(first.dummy4_zero*second.byc2)+
(first.dummy5_zero*second.bc1c2)+(first.dummy6_zero*second.bc2c2)+
(first.dummy7_one*second.dummy6_zero);
color_twist->dummy7_one=(first.dummy4_zero*second.dummy1_zero)+
(first.dummy5_zero*second.dummy2_zero)+
(first.dummy6_zero*second.dummy3_zero)+(first.dummy7_one*second.dummy7_one);
}
static void SetBrightness(double brightness,FPXColorTwistMatrix *color_twist)
{
FPXColorTwistMatrix
effect,
result;
/*
Set image brightness in color twist matrix.
*/
assert(color_twist != (FPXColorTwistMatrix *) NULL);
brightness=sqrt((double) brightness);
effect.byy=brightness;
effect.byc1=0.0;
effect.byc2=0.0;
effect.dummy1_zero=0.0;
effect.bc1y=0.0;
effect.bc1c1=brightness;
effect.bc1c2=0.0;
effect.dummy2_zero=0.0;
effect.bc2y=0.0;
effect.bc2c1=0.0;
effect.bc2c2=brightness;
effect.dummy3_zero=0.0;
effect.dummy4_zero=0.0;
effect.dummy5_zero=0.0;
effect.dummy6_zero=0.0;
effect.dummy7_one=1.0;
ColorTwistMultiply(*color_twist,effect,&result);
*color_twist=result;
}
static void SetColorBalance(double red,double green,double blue,
FPXColorTwistMatrix *color_twist)
{
FPXColorTwistMatrix
blue_effect,
green_effect,
result,
rgb_effect,
rg_effect,
red_effect;
/*
Set image color balance in color twist matrix.
*/
assert(color_twist != (FPXColorTwistMatrix *) NULL);
red=sqrt((double) red)-1.0;
green=sqrt((double) green)-1.0;
blue=sqrt((double) blue)-1.0;
red_effect.byy=1.0;
red_effect.byc1=0.0;
red_effect.byc2=0.299*red;
red_effect.dummy1_zero=0.0;
red_effect.bc1y=(-0.299)*red;
red_effect.bc1c1=1.0-0.299*red;
red_effect.bc1c2=(-0.299)*red;
red_effect.dummy2_zero=0.0;
red_effect.bc2y=0.701*red;
red_effect.bc2c1=0.0;
red_effect.bc2c2=1.0+0.402*red;
red_effect.dummy3_zero=0.0;
red_effect.dummy4_zero=0.0;
red_effect.dummy5_zero=0.0;
red_effect.dummy6_zero=0.0;
red_effect.dummy7_one=1.0;
green_effect.byy=1.0;
green_effect.byc1=(-0.114)*green;
green_effect.byc2=(-0.299)*green;
green_effect.dummy1_zero=0.0;
green_effect.bc1y=(-0.587)*green;
green_effect.bc1c1=1.0-0.473*green;
green_effect.bc1c2=0.299*green;
green_effect.dummy2_zero=0.0;
green_effect.bc2y=(-0.587)*green;
green_effect.bc2c1=0.114*green;
green_effect.bc2c2=1.0-0.288*green;
green_effect.dummy3_zero=0.0;
green_effect.dummy4_zero=0.0;
green_effect.dummy5_zero=0.0;
green_effect.dummy6_zero=0.0;
green_effect.dummy7_one=1.0;
blue_effect.byy=1.0;
blue_effect.byc1=0.114*blue;
blue_effect.byc2=0.0;
blue_effect.dummy1_zero=0.0;
blue_effect.bc1y=0.886*blue;
blue_effect.bc1c1=1.0+0.772*blue;
blue_effect.bc1c2=0.0;
blue_effect.dummy2_zero=0.0;
blue_effect.bc2y=(-0.114)*blue;
blue_effect.bc2c1=(-0.114)*blue;
blue_effect.bc2c2=1.0-0.114*blue;
blue_effect.dummy3_zero=0.0;
blue_effect.dummy4_zero=0.0;
blue_effect.dummy5_zero=0.0;
blue_effect.dummy6_zero=0.0;
blue_effect.dummy7_one=1.0;
ColorTwistMultiply(red_effect,green_effect,&rg_effect);
ColorTwistMultiply(rg_effect,blue_effect,&rgb_effect);
ColorTwistMultiply(*color_twist,rgb_effect,&result);
*color_twist=result;
}
static void SetSaturation(double saturation,FPXColorTwistMatrix *color_twist)
{
FPXColorTwistMatrix
effect,
result;
/*
Set image saturation in color twist matrix.
*/
assert(color_twist != (FPXColorTwistMatrix *) NULL);
effect.byy=1.0;
effect.byc1=0.0;
effect.byc2=0.0;
effect.dummy1_zero=0.0;
effect.bc1y=0.0;
effect.bc1c1=saturation;
effect.bc1c2=0.0;
effect.dummy2_zero=0.0;
effect.bc2y=0.0;
effect.bc2c1=0.0;
effect.bc2c2=saturation;
effect.dummy3_zero=0.0;
effect.dummy4_zero=0.0;
effect.dummy5_zero=0.0;
effect.dummy6_zero=0.0;
effect.dummy7_one=1.0;
ColorTwistMultiply(*color_twist,effect,&result);
*color_twist=result;
}
static unsigned int WriteFPXImage(const ImageInfo *image_info,Image *image)
{
FPXBackground
background_color;
FPXColorspace
colorspace =
{
TRUE, 4,
{
{ NIFRGB_R, DATA_TYPE_UNSIGNED_BYTE },
{ NIFRGB_G, DATA_TYPE_UNSIGNED_BYTE },
{ NIFRGB_B, DATA_TYPE_UNSIGNED_BYTE },
{ ALPHA, DATA_TYPE_UNSIGNED_BYTE }
}
};
const ImageAttribute
*comment,
*label;
FPXCompressionOption
compression;
FPXImageDesc
fpx_info;
FPXImageHandle
*flashpix;
FPXStatus
fpx_status;
FPXSummaryInformation
summary_info;
long
y;
register long
i;
unsigned char
*pixels;
size_t
memory_limit;
unsigned long
tile_height,
tile_width;
/*
Open output file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
/*
Initialize FPX toolkit.
*/
image->depth=8;
(void) TransformColorspace(image,RGBColorspace);
memory_limit=20000000;
fpx_status=FPX_SetToolkitMemoryLimit(&memory_limit);
if (fpx_status != FPX_OK)
ThrowWriterException(DelegateError,UnableToInitializeFPXLibrary,image);
tile_width=64;
tile_height=64;
colorspace.numberOfComponents=3;
if (image->matte)
colorspace.numberOfComponents=4;
if ((image_info->type != TrueColorType) &&
IsGrayImage(image,&image->exception))
{
colorspace.numberOfComponents=1;
colorspace.theComponents[0].myColor=MONOCHROME;
}
background_color.color1_value=0;
background_color.color2_value=0;
background_color.color3_value=0;
background_color.color4_value=0;
compression=NONE;
if (image_info->compression == JPEGCompression)
compression=JPEG_UNSPECIFIED;
{
fpx_status=FPX_CreateImageByFilename(image->filename,image->columns,
image->rows,tile_width,tile_height,colorspace,background_color,
compression,&flashpix);
}
if (fpx_status != FPX_OK)
ThrowWriterException(FileOpenError,UnableToOpenFile,image);
if (image_info->compression == JPEGCompression)
{
/*
Initialize the compression by quality for the entire image.
*/
fpx_status=
FPX_SetJPEGCompression(flashpix,(unsigned short) (image_info->quality));
if (fpx_status != FPX_OK)
ThrowWriterException(CoderError,UnableToSetJPEGLevel,image);
}
/*
Set image summary info.
*/
summary_info.title_valid=False;
summary_info.subject_valid=False;
summary_info.author_valid=False;
summary_info.comments_valid=False;
summary_info.keywords_valid=False;
summary_info.OLEtemplate_valid=False;
summary_info.last_author_valid=False;
summary_info.rev_number_valid=False;
summary_info.edit_time_valid=False;
summary_info.last_printed_valid=False;
summary_info.create_dtm_valid=False;
summary_info.last_save_dtm_valid=False;
summary_info.page_count_valid=False;
summary_info.word_count_valid=False;
summary_info.char_count_valid=False;
summary_info.thumbnail_valid=False;
summary_info.appname_valid=False;
summary_info.security_valid=False;
label=GetImageAttribute(image,"label");
if (label != (ImageAttribute *) NULL)
{
/*
Note image label.
*/
summary_info.title_valid=True;
summary_info.title.length=strlen(label->value);
summary_info.title.ptr=MagickAllocateMemory(unsigned char *,
strlen(label->value)+1);
if (summary_info.title.ptr != (unsigned char *) NULL)
(void) strlcpy((char *) summary_info.title.ptr,label->value,
MaxTextExtent);
else
ThrowWriterException(CoderError,UnableToSetImageTitle,image);
}
comment=GetImageAttribute(image,"comment");
if (comment != (ImageAttribute *) NULL)
{
/*
Note image comment.
*/
summary_info.comments_valid=True;
summary_info.comments.length=strlen(comment->value);
summary_info.comments.ptr=MagickAllocateMemory(unsigned char *,
strlen(comment->value)+1);
if (summary_info.comments.ptr != (unsigned char *) NULL)
(void) strcpy((char *) summary_info.comments.ptr,comment->value);
else
ThrowWriterException(CoderError,UnableToSetImageComments,image);
}
fpx_status=FPX_SetSummaryInformation(flashpix,&summary_info);
if (fpx_status != FPX_OK)
ThrowWriterException(CoderError,UnableToSetSummaryInfo,image);
/*
Allocate pixels.
*/
pixels=MagickAllocateMemory(unsigned char *,
colorspace.numberOfComponents*image->columns);
if (pixels == (unsigned char *) NULL)
{
(void) FPX_CloseImage(flashpix);
FPX_ClearSystem();
ThrowWriterException(ResourceLimitError,MemoryAllocationFailed,image);
}
/*
Initialize FlashPix image description.
*/
fpx_info.numberOfComponents=colorspace.numberOfComponents;
for (i=0; i < (long) fpx_info.numberOfComponents; i++)
{
fpx_info.components[i].myColorType.myDataType=DATA_TYPE_UNSIGNED_BYTE;
fpx_info.components[i].horzSubSampFactor=1;
fpx_info.components[i].vertSubSampFactor=1;
fpx_info.components[i].columnStride=fpx_info.numberOfComponents;
fpx_info.components[i].lineStride=
image->columns*fpx_info.components[i].columnStride;
fpx_info.components[i].theData=pixels+i;
}
fpx_info.components[0].myColorType.myColor=
fpx_info.numberOfComponents != 1 ? NIFRGB_R : MONOCHROME;
fpx_info.components[1].myColorType.myColor=NIFRGB_G;
fpx_info.components[2].myColorType.myColor=NIFRGB_B;
fpx_info.components[3].myColorType.myColor=ALPHA;
/*
Write image scanlines.
*/
for (y=0; y < (long) image->rows; y++)
{
if (!AcquireImagePixels(image,0,y,image->columns,1,&image->exception))
break;
if (fpx_info.numberOfComponents == 1)
(void) ExportImagePixelArea(image,GrayQuantum,8,pixels,0,0);
else
if (!image->matte)
(void) ExportImagePixelArea(image,RGBQuantum,8,pixels,0,0);
else
(void) ExportImagePixelArea(image,RGBAQuantum,8,pixels,0,0);
fpx_status=FPX_WriteImageLine(flashpix,&fpx_info);
if (fpx_status != FPX_OK)
break;
if (QuantumTick(y,image->rows))
if (!MagickMonitor(SaveImageText,y,image->rows,&image->exception))
break;
}
if (image_info->view != (char *) NULL)
{
FPXAffineMatrix
affine;
FPXColorTwistMatrix
color_twist;
FPXContrastAdjustment
contrast;
FPXFilteringValue
sharpen;
FPXResultAspectRatio
aspect_ratio;
FPXROI
view_rect;
unsigned int
affine_valid,
aspect_ratio_valid,
color_twist_valid,
contrast_valid,
sharpen_valid,
view_rect_valid;
/*
Initialize default viewing parameters.
*/
contrast=1.0;
contrast_valid=False;
color_twist.byy=1.0;
color_twist.byc1=0.0;
color_twist.byc2=0.0;
color_twist.dummy1_zero=0.0;
color_twist.bc1y=0.0;
color_twist.bc1c1=1.0;
color_twist.bc1c2=0.0;
color_twist.dummy2_zero=0.0;
color_twist.bc2y=0.0;
color_twist.bc2c1=0.0;
color_twist.bc2c2=1.0;
color_twist.dummy3_zero=0.0;
color_twist.dummy4_zero=0.0;
color_twist.dummy5_zero=0.0;
color_twist.dummy6_zero=0.0;
color_twist.dummy7_one=1.0;
color_twist_valid=False;
sharpen=0.0;
sharpen_valid=False;
aspect_ratio=(double) image->columns/image->rows;
aspect_ratio_valid=False;
view_rect.left=(float) 0.1;
view_rect.width=aspect_ratio-0.2;
view_rect.top=(float) 0.1;
view_rect.height=(float) 0.8; /* 1.0-0.2 */
view_rect_valid=False;
affine.a11=1.0;
affine.a12=0.0;
affine.a13=0.0;
affine.a14=0.0;
affine.a21=0.0;
affine.a22=1.0;
affine.a23=0.0;
affine.a24=0.0;
affine.a31=0.0;
affine.a32=0.0;
affine.a33=1.0;
affine.a34=0.0;
affine.a41=0.0;
affine.a42=0.0;
affine.a43=0.0;
affine.a44=1.0;
affine_valid=False;
if (0)
{
/*
Color color twist.
*/
SetBrightness(0.5,&color_twist);
SetSaturation(0.5,&color_twist);
SetColorBalance(0.5,1.0,1.0,&color_twist);
color_twist_valid=True;
}
if (affine_valid)
{
fpx_status=FPX_SetImageAffineMatrix(flashpix,&affine);
if (fpx_status != FPX_OK)
ThrowWriterException(CoderError,UnableToSetAffineMatrix,image);
}
if (aspect_ratio_valid)
{
fpx_status=FPX_SetImageResultAspectRatio(flashpix,&aspect_ratio);
if (fpx_status != FPX_OK)
ThrowWriterException(CoderError,UnableToSetAspectRatio,image);
}
if (color_twist_valid)
{
fpx_status=FPX_SetImageColorTwistMatrix(flashpix,&color_twist);
if (fpx_status != FPX_OK)
ThrowWriterException(CoderError,UnableToSetColorTwist,image);
}
if (contrast_valid)
{
fpx_status=FPX_SetImageContrastAdjustment(flashpix,&contrast);
if (fpx_status != FPX_OK)
ThrowWriterException(CoderError,UnableToSetContrast,image);
}
if (sharpen_valid)
{
fpx_status=FPX_SetImageFilteringValue(flashpix,&sharpen);
if (fpx_status != FPX_OK)
ThrowWriterException(CoderError,UnableToSetFilteringValue,
image);
}
if (view_rect_valid)
{
fpx_status=FPX_SetImageROI(flashpix,&view_rect);
if (fpx_status != FPX_OK)
ThrowWriterException(CoderError,UnableToSetRegionOfInterest,
image);
}
}
(void) FPX_CloseImage(flashpix);
FPX_ClearSystem();
MagickFreeMemory(pixels);
return(True);
}
#else
static unsigned int WriteFPXImage(const ImageInfo *image_info,Image *image)
{
ThrowBinaryException(MissingDelegateError,FPXLibraryIsNotAvailable,
image->filename)
}
#endif