/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d R G B I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadRGBImage() reads an image of raw RGB or RGBA samples and returns it. It
% allocates the memory necessary for the new Image structure and returns a
% pointer to the new image.
%
% The format of the ReadRGBImage method is:
%
% Image *ReadRGBImage(const ImageInfo *image_info,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadRGBImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
Image
*canvas_image,
*image;
long
y;
MagickBooleanType
status;
MagickOffsetType
scene;
QuantumInfo
*quantum_info;
QuantumType
quantum_type;
register long
i,
j;
Quantum
qx[3];
ssize_t
count;
size_t
length;
unsigned char
*pixels;
QuantumType
quantum_types[4];
char
sfx[] = {0, 0};
int
channels = 3;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(OptionError,"MustSpecifyImageSize");
if (image_info->interlace != PartitionInterlace)
{
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
for (i=0; i < image->offset; i++)
if (ReadBlobByte(image) == EOF)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
}
/*
Create virtual canvas to support cropping (i.e. image.rgb[100x100+10+20]).
*/
canvas_image=CloneImage(image,image->extract_info.width,1,MagickFalse,
exception);
(void) SetImageVirtualPixelMethod(canvas_image,BlackVirtualPixelMethod);
quantum_info=AcquireQuantumInfo(image_info,canvas_image);
if (quantum_info == (QuantumInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
pixels=GetQuantumPixels(quantum_info);
quantum_type=RGBQuantum;
if (LocaleCompare(image_info->magick,"RGBA") == 0)
{
quantum_type=RGBAQuantum;
image->matte=MagickTrue;
channels=4;
}
if (LocaleCompare(image_info->magick,"RGBO") == 0)
{
quantum_type=RGBOQuantum;
image->matte=MagickTrue;
channels=4;
}
if (image_info->number_scenes != 0)
while (image->scene < image_info->scene)
{
/*
Skip to next image.
*/
image->scene++;
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
for (y=0; y < (long) image->rows; y++)
{
count=ReadBlob(image,length,pixels);
if (count != (ssize_t) length)
break;
}
}
for (i=0; i < channels; i++)
{
switch(image_info->magick[i])
{
case 'R': quantum_types[i]=RedQuantum; break;
case 'G': quantum_types[i]=GreenQuantum; break;
case 'B': quantum_types[i]=BlueQuantum; break;
case 'A': quantum_types[i]=AlphaQuantum; break;
case 'O': quantum_types[i]=OpacityQuantum; break;
}
}
count=0;
length=0;
scene=0;
do
{
/*
Read pixels to virtual canvas image then push to image.
*/
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
switch (image_info->interlace)
{
case NoInterlace:
default:
{
/*
No interlacing: RGBRGBRGBRGBRGBRGB...
*/
if (scene == 0)
{
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
count=ReadBlob(image,length,pixels);
if (count != (ssize_t) length)
break;
}
for (y=0; y < (long) image->extract_info.height; y++)
{
register const PixelPacket
*__restrict p;
register long
x;
register PixelPacket
*__restrict q;
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,quantum_type,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (long) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=QueueAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (long) image->columns; x++)
{
qx[0]=p->red;
qx[1]=p->green;
qx[2]=p->blue;
for (i=0; i < 3; i++)
switch(quantum_types[i])
{
case RedQuantum: q->red=qx[i]; break;
case GreenQuantum: q->green=qx[i]; break;
case BlueQuantum: q->blue=qx[i]; break;
default: break;
}
q->opacity=OpaqueOpacity;
if (image->matte != MagickFalse)
q->opacity=p->opacity;
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,y,image->rows);
if (status == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
break;
}
case LineInterlace:
{
/*
Line interlacing: RRR...GGG...BBB...RRR...GGG...BBB...
*/
if (scene == 0)
{
length=GetQuantumExtent(canvas_image,quantum_info,quantum_types[0]);
count=ReadBlob(image,length,pixels);
}
for (y=0; y < (long) image->extract_info.height; y++)
{
register const PixelPacket
*__restrict p;
register long
x;
register PixelPacket
*__restrict q;
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
for (i=0; i < channels; i++)
{
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,quantum_types[i],pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (long) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,
0,canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
if (i == (channels - 1))
for (x=0; x < (long) image->columns; x++)
{
q->red=p->red;
q->green=p->green;
q->blue=p->blue;
q->opacity=p->opacity;
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,y,image->rows);
if (status == MagickFalse)
break;
}
}
break;
}
case PlaneInterlace:
{
/*
Plane interlacing: RRRRRR...GGGGGG...BBBBBB...
*/
if (scene == 0)
{
length=GetQuantumExtent(canvas_image,quantum_info,quantum_types[0]);
count=ReadBlob(image,length,pixels);
}
for (i=0; i < channels; i++)
{
for (y=0; y < (long) image->extract_info.height; y++)
{
register const PixelPacket
*__restrict p;
register long
x;
register PixelPacket
*__restrict q;
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,quantum_types[i],pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (long) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (long) image->columns; x++)
{
switch(quantum_types[i])
{
case RedQuantum: q->red=p->red; break;
case GreenQuantum: q->green=p->green; break;
case BlueQuantum: q->blue=p->blue; break;
case OpacityQuantum:
case AlphaQuantum: q->opacity=p->opacity; break;
default: break;
}
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,(i+1),5);
if (status == MagickFalse)
break;
}
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,5,5);
if (status == MagickFalse)
break;
}
break;
}
case PartitionInterlace:
{
/*
Partition interlacing: RRRRRR..., GGGGGG..., BBBBBB...
*/
for (i=0; i < channels; i++)
{
sfx[0]=image_info->magick[i];
AppendImageFormat(sfx,image->filename);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
canvas_image=DestroyImageList(canvas_image);
image=DestroyImageList(image);
return((Image *) NULL);
}
if (i == 0)
for (j=0; j < image->offset; j++)
if (ReadBlobByte(image) == EOF)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
length=GetQuantumExtent(canvas_image,quantum_info,quantum_types[i]);
for (j=0; j < (long) scene; j++)
for (y=0; y < (long) image->extract_info.height; y++)
if (ReadBlob(image,length,pixels) != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
count=ReadBlob(image,length,pixels);
for (y=0; y < (long) image->extract_info.height; y++)
{
register const PixelPacket
*__restrict p;
register long
x;
register PixelPacket
*__restrict q;
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,quantum_types[i],pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (long) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (long) image->columns; x++)
{
switch(quantum_types[i])
{
case RedQuantum: q->red=p->red; break;
case GreenQuantum: q->green=p->green; break;
case BlueQuantum: q->blue=p->blue; break;
case OpacityQuantum:
case AlphaQuantum: q->opacity=p->opacity; break;
default: break;
}
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,(i+1),5);
if (status == MagickFalse)
break;
}
if (i != (channels-1))
(void) CloseBlob(image);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,5,5);
if (status == MagickFalse)
break;
}
break;
}
}
SetQuantumImageType(image,quantum_type);
/*
Proceed to next image.
*/
if (image_info->number_scenes != 0)
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
if (count == (ssize_t) length)
{
/*
Allocate next image structure.
*/
AcquireNextImage(image_info,image);
if (GetNextImageInList(image) == (Image *) NULL)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
image=SyncNextImageInList(image);
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
GetBlobSize(image));
if (status == MagickFalse)
break;
}
scene++;
} while (count == (ssize_t) length);
quantum_info=DestroyQuantumInfo(quantum_info);
InheritException(&image->exception,&canvas_image->exception);
canvas_image=DestroyImage(canvas_image);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d A R T I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadARTImage() reads an image of raw bits in LSB order and returns it.
% It allocates the memory necessary for the new Image structure and returns
% a pointer to the new image.
%
% The format of the ReadARTImage method is:
%
% Image *ReadARTImage(const ImageInfo *image_info,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadARTImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
Image
*image;
QuantumInfo
*quantum_info;
MagickBooleanType
status;
size_t
length;
ssize_t
count,
y;
unsigned char
*pixels;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info,exception);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
image->depth=1;
image->endian=MSBEndian;
(void) ReadBlobLSBShort(image);
image->columns=(size_t) ReadBlobLSBShort(image);
(void) ReadBlobLSBShort(image);
image->rows=(size_t) ReadBlobLSBShort(image);
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
if (image_info->ping != MagickFalse)
{
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
Convert bi-level image to pixel packets.
*/
SetImageColorspace(image,GRAYColorspace,exception);
quantum_info=AcquireQuantumInfo(image_info,image);
if (quantum_info == (QuantumInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
pixels=GetQuantumPixels(quantum_info);
length=GetQuantumExtent(image,quantum_info,GrayQuantum);
for (y=0; y < (ssize_t) image->rows; y++)
{
register Quantum
*restrict q;
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
count=ReadBlob(image,length,pixels);
if (count != (ssize_t) length)
ThrowReaderException(CorruptImageError,"UnableToReadImageData");
(void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
GrayQuantum,pixels,exception);
count=ReadBlob(image,(size_t) (-(ssize_t) length) & 0x01,pixels);
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse)
break;
}
SetQuantumImageType(image,GrayQuantum);
quantum_info=DestroyQuantumInfo(quantum_info);
if (EOFBlob(image) != MagickFalse)
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
static Image *ReadCINImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
#define MonoColorType 1
#define RGBColorType 3
CINInfo
cin;
Image
*image;
MagickBooleanType
status;
MagickOffsetType
offset;
QuantumInfo
*quantum_info;
QuantumType
quantum_type;
register ssize_t
i;
register Quantum
*q;
size_t
length;
ssize_t
count,
y;
unsigned char
magick[4],
*pixels;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info,exception);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
/*
File information.
*/
offset=0;
count=ReadBlob(image,4,magick);
offset+=count;
if ((count != 4) ||
((LocaleNCompare((char *) magick,"\200\052\137\327",4) != 0)))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
image->endian=(magick[0] == 0x80) && (magick[1] == 0x2a) &&
(magick[2] == 0x5f) && (magick[3] == 0xd7) ? MSBEndian : LSBEndian;
cin.file.image_offset=ReadBlobLong(image);
offset+=4;
cin.file.generic_length=ReadBlobLong(image);
offset+=4;
cin.file.industry_length=ReadBlobLong(image);
offset+=4;
cin.file.user_length=ReadBlobLong(image);
offset+=4;
cin.file.file_size=ReadBlobLong(image);
offset+=4;
offset+=ReadBlob(image,sizeof(cin.file.version),(unsigned char *)
cin.file.version);
(void) SetImageProperty(image,"dpx:file.version",cin.file.version,exception);
offset+=ReadBlob(image,sizeof(cin.file.filename),(unsigned char *)
cin.file.filename);
(void) SetImageProperty(image,"dpx:file.filename",cin.file.filename,
exception);
offset+=ReadBlob(image,sizeof(cin.file.create_date),(unsigned char *)
cin.file.create_date);
(void) SetImageProperty(image,"dpx:file.create_date",cin.file.create_date,
exception);
offset+=ReadBlob(image,sizeof(cin.file.create_time),(unsigned char *)
cin.file.create_time);
(void) SetImageProperty(image,"dpx:file.create_time",cin.file.create_time,
exception);
offset+=ReadBlob(image,sizeof(cin.file.reserve),(unsigned char *)
cin.file.reserve);
/*
Image information.
*/
cin.image.orientation=(unsigned char) ReadBlobByte(image);
offset++;
if (cin.image.orientation != (unsigned char) (~0U))
(void) FormatImageProperty(image,"dpx:image.orientation","%d",
cin.image.orientation);
switch (cin.image.orientation)
{
default:
case 0:
image->orientation=TopLeftOrientation;
break;
case 1:
image->orientation=TopRightOrientation;
break;
case 2:
image->orientation=BottomLeftOrientation;
break;
case 3:
image->orientation=BottomRightOrientation;
break;
case 4:
image->orientation=LeftTopOrientation;
break;
case 5:
image->orientation=RightTopOrientation;
break;
case 6:
image->orientation=LeftBottomOrientation;
break;
case 7:
image->orientation=RightBottomOrientation;
break;
}
cin.image.number_channels=(unsigned char) ReadBlobByte(image);
offset++;
offset+=ReadBlob(image,sizeof(cin.image.reserve1),(unsigned char *)
cin.image.reserve1);
for (i=0; i < 8; i++)
{
cin.image.channel[i].designator[0]=(unsigned char) ReadBlobByte(image);
offset++;
cin.image.channel[i].designator[1]=(unsigned char) ReadBlobByte(image);
offset++;
cin.image.channel[i].bits_per_pixel=(unsigned char) ReadBlobByte(image);
offset++;
cin.image.channel[i].reserve=(unsigned char) ReadBlobByte(image);
offset++;
cin.image.channel[i].pixels_per_line=ReadBlobLong(image);
offset+=4;
cin.image.channel[i].lines_per_image=ReadBlobLong(image);
offset+=4;
cin.image.channel[i].min_data=ReadBlobFloat(image);
offset+=4;
cin.image.channel[i].min_quantity=ReadBlobFloat(image);
offset+=4;
cin.image.channel[i].max_data=ReadBlobFloat(image);
offset+=4;
cin.image.channel[i].max_quantity=ReadBlobFloat(image);
offset+=4;
}
cin.image.white_point[0]=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.image.white_point[0]) != MagickFalse)
image->chromaticity.white_point.x=cin.image.white_point[0];
cin.image.white_point[1]=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.image.white_point[1]) != MagickFalse)
image->chromaticity.white_point.y=cin.image.white_point[1];
cin.image.red_primary_chromaticity[0]=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.image.red_primary_chromaticity[0]) != MagickFalse)
image->chromaticity.red_primary.x=cin.image.red_primary_chromaticity[0];
cin.image.red_primary_chromaticity[1]=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.image.red_primary_chromaticity[1]) != MagickFalse)
image->chromaticity.red_primary.y=cin.image.red_primary_chromaticity[1];
cin.image.green_primary_chromaticity[0]=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.image.green_primary_chromaticity[0]) != MagickFalse)
image->chromaticity.red_primary.x=cin.image.green_primary_chromaticity[0];
cin.image.green_primary_chromaticity[1]=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.image.green_primary_chromaticity[1]) != MagickFalse)
image->chromaticity.green_primary.y=cin.image.green_primary_chromaticity[1];
cin.image.blue_primary_chromaticity[0]=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.image.blue_primary_chromaticity[0]) != MagickFalse)
image->chromaticity.blue_primary.x=cin.image.blue_primary_chromaticity[0];
cin.image.blue_primary_chromaticity[1]=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.image.blue_primary_chromaticity[1]) != MagickFalse)
image->chromaticity.blue_primary.y=cin.image.blue_primary_chromaticity[1];
offset+=ReadBlob(image,sizeof(cin.image.label),(unsigned char *)
cin.image.label);
(void) SetImageProperty(image,"dpx:image.label",cin.image.label,exception);
offset+=ReadBlob(image,sizeof(cin.image.reserve),(unsigned char *)
cin.image.reserve);
/*
Image data format information.
*/
cin.data_format.interleave=(unsigned char) ReadBlobByte(image);
offset++;
cin.data_format.packing=(unsigned char) ReadBlobByte(image);
offset++;
cin.data_format.sign=(unsigned char) ReadBlobByte(image);
offset++;
cin.data_format.sense=(unsigned char) ReadBlobByte(image);
offset++;
cin.data_format.line_pad=ReadBlobLong(image);
offset+=4;
cin.data_format.channel_pad=ReadBlobLong(image);
offset+=4;
offset+=ReadBlob(image,sizeof(cin.data_format.reserve),(unsigned char *)
cin.data_format.reserve);
/*
Image origination information.
*/
cin.origination.x_offset=(int) ReadBlobLong(image);
offset+=4;
if ((size_t) cin.origination.x_offset != ~0UL)
(void) FormatImageProperty(image,"dpx:origination.x_offset","%.20g",
(double) cin.origination.x_offset);
cin.origination.y_offset=(ssize_t) ReadBlobLong(image);
offset+=4;
if ((size_t) cin.origination.y_offset != ~0UL)
(void) FormatImageProperty(image,"dpx:origination.y_offset","%.20g",
(double) cin.origination.y_offset);
offset+=ReadBlob(image,sizeof(cin.origination.filename),(unsigned char *)
cin.origination.filename);
(void) SetImageProperty(image,"dpx:origination.filename",
cin.origination.filename,exception);
offset+=ReadBlob(image,sizeof(cin.origination.create_date),(unsigned char *)
cin.origination.create_date);
(void) SetImageProperty(image,"dpx:origination.create_date",
cin.origination.create_date,exception);
offset+=ReadBlob(image,sizeof(cin.origination.create_time),(unsigned char *)
cin.origination.create_time);
(void) SetImageProperty(image,"dpx:origination.create_time",
cin.origination.create_time,exception);
offset+=ReadBlob(image,sizeof(cin.origination.device),(unsigned char *)
cin.origination.device);
(void) SetImageProperty(image,"dpx:origination.device",
cin.origination.device,exception);
offset+=ReadBlob(image,sizeof(cin.origination.model),(unsigned char *)
cin.origination.model);
(void) SetImageProperty(image,"dpx:origination.model",cin.origination.model,
exception);
offset+=ReadBlob(image,sizeof(cin.origination.serial),(unsigned char *)
cin.origination.serial);
(void) SetImageProperty(image,"dpx:origination.serial",
cin.origination.serial,exception);
cin.origination.x_pitch=ReadBlobFloat(image);
offset+=4;
cin.origination.y_pitch=ReadBlobFloat(image);
offset+=4;
cin.origination.gamma=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.origination.gamma) != MagickFalse)
image->gamma=cin.origination.gamma;
offset+=ReadBlob(image,sizeof(cin.origination.reserve),(unsigned char *)
cin.origination.reserve);
if ((cin.file.image_offset > 2048) && (cin.file.user_length != 0))
{
int
c;
/*
Image film information.
*/
cin.film.id=ReadBlobByte(image);
offset++;
c=cin.film.id;
if (c != ~0)
(void) FormatImageProperty(image,"dpx:film.id","%d",cin.film.id);
cin.film.type=ReadBlobByte(image);
offset++;
c=cin.film.type;
if (c != ~0)
(void) FormatImageProperty(image,"dpx:film.type","%d",cin.film.type);
cin.film.offset=ReadBlobByte(image);
offset++;
c=cin.film.offset;
if (c != ~0)
(void) FormatImageProperty(image,"dpx:film.offset","%d",
cin.film.offset);
cin.film.reserve1=ReadBlobByte(image);
offset++;
cin.film.prefix=ReadBlobLong(image);
offset+=4;
if (cin.film.prefix != ~0UL)
(void) FormatImageProperty(image,"dpx:film.prefix","%.20g",(double)
cin.film.prefix);
cin.film.count=ReadBlobLong(image);
offset+=4;
offset+=ReadBlob(image,sizeof(cin.film.format),(unsigned char *)
cin.film.format);
(void) SetImageProperty(image,"dpx:film.format",cin.film.format,
exception);
cin.film.frame_position=ReadBlobLong(image);
offset+=4;
if (cin.film.frame_position != ~0UL)
(void) FormatImageProperty(image,"dpx:film.frame_position","%.20g",
(double) cin.film.frame_position);
cin.film.frame_rate=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(cin.film.frame_rate) != MagickFalse)
(void) FormatImageProperty(image,"dpx:film.frame_rate","%g",
cin.film.frame_rate);
offset+=ReadBlob(image,sizeof(cin.film.frame_id),(unsigned char *)
cin.film.frame_id);
(void) SetImageProperty(image,"dpx:film.frame_id",cin.film.frame_id,
exception);
offset+=ReadBlob(image,sizeof(cin.film.slate_info),(unsigned char *)
cin.film.slate_info);
(void) SetImageProperty(image,"dpx:film.slate_info",cin.film.slate_info,
exception);
offset+=ReadBlob(image,sizeof(cin.film.reserve),(unsigned char *)
cin.film.reserve);
}
if ((cin.file.image_offset > 2048) && (cin.file.user_length != 0))
{
StringInfo
*profile;
/*
User defined data.
*/
profile=BlobToStringInfo((const void *) NULL,cin.file.user_length);
if (profile == (StringInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
offset+=ReadBlob(image,GetStringInfoLength(profile),
GetStringInfoDatum(profile));
(void) SetImageProfile(image,"dpx:user.data",profile,exception);
profile=DestroyStringInfo(profile);
}
for ( ; offset < (MagickOffsetType) cin.file.image_offset; offset++)
(void) ReadBlobByte(image);
image->depth=cin.image.channel[0].bits_per_pixel;
image->columns=cin.image.channel[0].pixels_per_line;
image->rows=cin.image.channel[0].lines_per_image;
if (image_info->ping)
{
(void) CloseBlob(image);
return(image);
}
/*
Convert CIN raster image to pixel packets.
*/
quantum_info=AcquireQuantumInfo(image_info,image);
if (quantum_info == (QuantumInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
quantum_info->quantum=32;
quantum_info->pack=MagickFalse;
quantum_type=RGBQuantum;
pixels=GetQuantumPixels(quantum_info);
length=GetQuantumExtent(image,quantum_info,quantum_type);
length=GetBytesPerRow(image->columns,3,image->depth,MagickTrue);
if (cin.image.number_channels == 1)
{
quantum_type=GrayQuantum;
length=GetBytesPerRow(image->columns,1,image->depth,MagickTrue);
}
for (y=0; y < (ssize_t) image->rows; y++)
{
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
count=ReadBlob(image,length,pixels);
if ((size_t) count != length)
break;
(void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
quantum_type,pixels,exception);
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
}
SetQuantumImageType(image,quantum_type);
quantum_info=DestroyQuantumInfo(quantum_info);
if (EOFBlob(image) != MagickFalse)
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
SetImageColorspace(image,LogColorspace,exception);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d V I C A R I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadVICARImage() reads a VICAR image file and returns it. It
% allocates the memory necessary for the new Image structure and returns a
% pointer to the new image.
%
% The format of the ReadVICARImage method is:
%
% Image *ReadVICARImage(const ImageInfo *image_info,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image: Method ReadVICARImage 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: the image info.
%
% o exception: return any errors or warnings in this structure.
%
%
*/
static Image *ReadVICARImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
char
keyword[MaxTextExtent],
value[MaxTextExtent];
Image
*image;
int
c;
MagickBooleanType
status,
value_expected;
QuantumInfo
*quantum_info;
QuantumType
quantum_type;
register PixelPacket
*q;
size_t
length;
ssize_t
count,
y;
unsigned char
*pixels;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
/*
Decode image header.
*/
c=ReadBlobByte(image);
count=1;
if (c == EOF)
{
image=DestroyImage(image);
return((Image *) NULL);
}
length=0;
image->columns=0;
image->rows=0;
while (isgraph(c) && ((image->columns == 0) || (image->rows == 0)))
{
if (isalnum(c) == MagickFalse)
{
c=ReadBlobByte(image);
count++;
}
else
{
register char
*p;
/*
Determine a keyword and its value.
*/
p=keyword;
do
{
if ((size_t) (p-keyword) < (MaxTextExtent-1))
*p++=c;
c=ReadBlobByte(image);
count++;
} while (isalnum(c) || (c == '_'));
*p='\0';
value_expected=MagickFalse;
while ((isspace((int) ((unsigned char) c)) != 0) || (c == '='))
{
if (c == '=')
value_expected=MagickTrue;
c=ReadBlobByte(image);
count++;
}
if (value_expected == MagickFalse)
continue;
p=value;
while (isalnum(c))
{
if ((size_t) (p-value) < (MaxTextExtent-1))
*p++=c;
c=ReadBlobByte(image);
count++;
}
*p='\0';
/*
Assign a value to the specified keyword.
*/
if (LocaleCompare(keyword,"Label_RECORDS") == 0)
length=(ssize_t) StringToLong(value);
if (LocaleCompare(keyword,"LBLSIZE") == 0)
length=(ssize_t) StringToLong(value);
if (LocaleCompare(keyword,"RECORD_BYTES") == 0)
image->columns=StringToUnsignedLong(value);
if (LocaleCompare(keyword,"NS") == 0)
image->columns=StringToUnsignedLong(value);
if (LocaleCompare(keyword,"LINES") == 0)
image->rows=StringToUnsignedLong(value);
if (LocaleCompare(keyword,"NL") == 0)
image->rows=StringToUnsignedLong(value);
}
while (isspace((int) ((unsigned char) c)) != 0)
{
c=ReadBlobByte(image);
count++;
}
}
while (count < (ssize_t) length)
{
c=ReadBlobByte(image);
count++;
}
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize");
image->depth=8;
if (AcquireImageColormap(image,256) == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
if (image_info->ping != MagickFalse)
{
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
Read VICAR pixels.
*/
quantum_type=IndexQuantum;
quantum_info=AcquireQuantumInfo(image_info,image);
if (quantum_info == (QuantumInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
pixels=GetQuantumPixels(quantum_info);
length=GetQuantumExtent(image,quantum_info,IndexQuantum);
for (y=0; y < (ssize_t) image->rows; y++)
{
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
count=ReadBlob(image,length,pixels);
(void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
quantum_type,pixels,exception);
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
SetQuantumImageType(image,quantum_type);
quantum_info=DestroyQuantumInfo(quantum_info);
if (EOFBlob(image) != MagickFalse)
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d R A W I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadRAWImage() reads an image of raw samples and returns it. It allocates
% the memory necessary for the new Image structure and returns a pointer to
% the new image.
%
% The format of the ReadRAWImage method is:
%
% Image *ReadRAWImage(const ImageInfo *image_info,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadRAWImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
const unsigned char
*pixels;
Image
*canvas_image,
*image;
MagickBooleanType
status;
MagickOffsetType
scene;
QuantumInfo
*quantum_info;
QuantumType
quantum_type;
size_t
length;
ssize_t
count,
y;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(OptionError,"MustSpecifyImageSize");
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
if (DiscardBlobBytes(image,image->offset) == MagickFalse)
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
/*
Create virtual canvas to support cropping (i.e. image.gray[100x100+10+20]).
*/
canvas_image=CloneImage(image,image->extract_info.width,1,MagickFalse,
exception);
(void) SetImageVirtualPixelMethod(canvas_image,BlackVirtualPixelMethod);
quantum_type=GrayQuantum;
quantum_info=AcquireQuantumInfo(image_info,canvas_image);
if (quantum_info == (QuantumInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
pixels=(const unsigned char *) NULL;
if (image_info->number_scenes != 0)
while (image->scene < image_info->scene)
{
/*
Skip to next image.
*/
image->scene++;
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
for (y=0; y < (ssize_t) image->rows; y++)
{
pixels=(const unsigned char *) ReadBlobStream(image,length,
GetQuantumPixels(quantum_info),&count);
if (count != (ssize_t) length)
break;
}
}
scene=0;
count=0;
length=0;
do
{
/*
Read pixels to virtual canvas image then push to image.
*/
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
status=SetImageExtent(image,image->columns,image->rows);
if (status == MagickFalse)
{
InheritException(exception,&image->exception);
return(DestroyImageList(image));
}
if (scene == 0)
{
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
pixels=(const unsigned char *) ReadBlobStream(image,length,
GetQuantumPixels(quantum_info),&count);
}
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
register const PixelPacket
*magick_restrict p;
register PixelPacket
*magick_restrict q;
register ssize_t
x;
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,quantum_info,
quantum_type,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
image->columns,1,exception);
q=QueueAuthenticPixels(image,0,y-image->extract_info.y,image->columns,
1,exception);
if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelRed(q,GetPixelRed(p));
SetPixelGreen(q,GetPixelGreen(p));
SetPixelBlue(q,GetPixelBlue(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
pixels=(const unsigned char *) ReadBlobStream(image,length,
GetQuantumPixels(quantum_info),&count);
}
SetQuantumImageType(image,quantum_type);
/*
Proceed to next image.
*/
if (image_info->number_scenes != 0)
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
if (count == (ssize_t) length)
{
/*
Allocate next image structure.
*/
AcquireNextImage(image_info,image);
if (GetNextImageInList(image) == (Image *) NULL)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
image=SyncNextImageInList(image);
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
GetBlobSize(image));
if (status == MagickFalse)
break;
}
scene++;
} while (count == (ssize_t) length);
quantum_info=DestroyQuantumInfo(quantum_info);
InheritException(&image->exception,&canvas_image->exception);
canvas_image=DestroyImage(canvas_image);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
static Image *ReadIPLImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
/*
Declare variables
*/
Image *image;
MagickBooleanType status;
register PixelPacket *q;
unsigned char magick[12], *pixels;
ssize_t count;
ssize_t y;
size_t t_count=0;
size_t length;
IPLInfo
ipl_info;
QuantumFormatType
quantum_format;
QuantumInfo
*quantum_info;
QuantumType
quantum_type;
/*
Open Image
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if ( image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent, GetMagickModule(), "%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
/*
Read IPL image
*/
/*
Determine endianness
If we get back "iiii", we have LSB,"mmmm", MSB
*/
count=ReadBlob(image,4,magick);
(void) count;
if((LocaleNCompare((char *) magick,"iiii",4) == 0))
image->endian=LSBEndian;
else{
if((LocaleNCompare((char *) magick,"mmmm",4) == 0))
image->endian=MSBEndian;
else{
ThrowReaderException(CorruptImageError, "ImproperImageHeader");
}
}
/* Skip o'er the next 8 bytes (garbage) */
count=ReadBlob(image, 8, magick);
/*
Excellent, now we read the header unimpeded.
*/
count=ReadBlob(image,4,magick);
if((LocaleNCompare((char *) magick,"data",4) != 0))
ThrowReaderException(CorruptImageError, "ImproperImageHeader");
ipl_info.size=ReadBlobLong(image);
ipl_info.width=ReadBlobLong(image);
ipl_info.height=ReadBlobLong(image);
if((ipl_info.width == 0UL) || (ipl_info.height == 0UL))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
ipl_info.colors=ReadBlobLong(image);
if(ipl_info.colors == 3){ image->colorspace=RGBColorspace;}
else { image->colorspace = GRAYColorspace; }
ipl_info.z=ReadBlobLong(image);
ipl_info.time=ReadBlobLong(image);
ipl_info.byteType=ReadBlobLong(image);
/* Initialize Quantum Info */
switch (ipl_info.byteType) {
case 0:
ipl_info.depth=8;
quantum_format = UnsignedQuantumFormat;
break;
case 1:
ipl_info.depth=16;
quantum_format = SignedQuantumFormat;
break;
case 2:
ipl_info.depth=16;
quantum_format = UnsignedQuantumFormat;
break;
case 3:
ipl_info.depth=32;
quantum_format = SignedQuantumFormat;
break;
case 4: ipl_info.depth=32;
quantum_format = FloatingPointQuantumFormat;
break;
case 5:
ipl_info.depth=8;
quantum_format = UnsignedQuantumFormat;
break;
case 6:
ipl_info.depth=16;
quantum_format = UnsignedQuantumFormat;
break;
case 10:
ipl_info.depth=64;
quantum_format = FloatingPointQuantumFormat;
break;
default:
ipl_info.depth=16;
quantum_format = UnsignedQuantumFormat;
break;
}
/*
Set number of scenes of image
*/
SetHeaderFromIPL(image, &ipl_info);
/* Thats all we need if we are pinging. */
if (image_info->ping != MagickFalse)
{
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
length=image->columns;
quantum_type=GetQuantumType(image,exception);
do
{
SetHeaderFromIPL(image, &ipl_info);
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
/*
printf("Length: %.20g, Memory size: %.20g\n", (double) length,(double)
image->depth);
*/
quantum_info=AcquireQuantumInfo(image_info,image);
if (quantum_info == (QuantumInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
status=SetQuantumFormat(image,quantum_info,quantum_format);
if (status == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
pixels=GetQuantumPixels(quantum_info);
if(image->columns != ipl_info.width){
/*
printf("Columns not set correctly! Wanted: %.20g, got: %.20g\n",
(double) ipl_info.width, (double) image->columns);
*/
}
/*
Covert IPL binary to pixel packets
*/
if(ipl_info.colors == 1){
for(y = 0; y < (ssize_t) image->rows; y++){
(void) ReadBlob(image, length*image->depth/8, pixels);
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
(void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
GrayQuantum,pixels,exception);
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
}
else{
for(y = 0; y < (ssize_t) image->rows; y++){
(void) ReadBlob(image, length*image->depth/8, pixels);
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
(void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
RedQuantum,pixels,exception);
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
for(y = 0; y < (ssize_t) image->rows; y++){
(void) ReadBlob(image, length*image->depth/8, pixels);
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
(void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
GreenQuantum,pixels,exception);
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
for(y = 0; y < (ssize_t) image->rows; y++){
(void) ReadBlob(image, length*image->depth/8, pixels);
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
(void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
BlueQuantum,pixels,exception);
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
}
SetQuantumImageType(image,quantum_type);
t_count++;
quantum_info = DestroyQuantumInfo(quantum_info);
if (EOFBlob(image) != MagickFalse)
{
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
break;
}
if(t_count < ipl_info.z * ipl_info.time){
/*
Proceed to next image.
*/
AcquireNextImage(image_info, image);
if (GetNextImageInList(image) == (Image *) NULL)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
image=SyncNextImageInList(image);
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
GetBlobSize(image));
if (status == MagickFalse)
break;
}
} while (t_count < ipl_info.z*ipl_info.time);
CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d Y C b C r I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadYCBCRImage() reads an image of raw YCbCr or YCbCrA samples and returns
% it. It allocates the memory necessary for the new Image structure and
% returns a pointer to the new image.
%
% The format of the ReadYCBCRImage method is:
%
% Image *ReadYCBCRImage(const ImageInfo *image_info,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadYCBCRImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
Image
*canvas_image,
*image;
MagickBooleanType
status;
MagickOffsetType
scene;
QuantumInfo
*quantum_info;
QuantumType
quantum_type;
register const PixelPacket
*p;
register ssize_t
i,
x;
register PixelPacket
*q;
size_t
length;
ssize_t
count,
y;
unsigned char
*pixels;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(OptionError,"MustSpecifyImageSize");
SetImageColorspace(image,YCbCrColorspace);
if (image_info->interlace != PartitionInterlace)
{
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
if (DiscardBlobBytes(image,image->offset) == MagickFalse)
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
}
/*
Create virtual canvas to support cropping (i.e. image.rgb[100x100+10+20]).
*/
canvas_image=CloneImage(image,image->extract_info.width,1,MagickFalse,
exception);
(void) SetImageVirtualPixelMethod(canvas_image,BlackVirtualPixelMethod);
quantum_info=AcquireQuantumInfo(image_info,canvas_image);
if (quantum_info == (QuantumInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
pixels=GetQuantumPixels(quantum_info);
quantum_type=RGBQuantum;
if (LocaleCompare(image_info->magick,"YCbCrA") == 0)
{
quantum_type=RGBAQuantum;
image->matte=MagickTrue;
}
if (image_info->number_scenes != 0)
while (image->scene < image_info->scene)
{
/*
Skip to next image.
*/
image->scene++;
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
for (y=0; y < (ssize_t) image->rows; y++)
{
count=ReadBlob(image,length,pixels);
if (count != (ssize_t) length)
break;
}
}
count=0;
length=0;
scene=0;
do
{
/*
Read pixels to virtual canvas image then push to image.
*/
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
SetImageColorspace(image,YCbCrColorspace);
switch (image_info->interlace)
{
case NoInterlace:
default:
{
/*
No interlacing: YCbCrYCbCrYCbCrYCbCrYCbCrYCbCr...
*/
if (scene == 0)
{
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
count=ReadBlob(image,length,pixels);
}
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,quantum_type,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=QueueAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelRed(q,GetPixelRed(p));
SetPixelGreen(q,GetPixelGreen(p));
SetPixelBlue(q,GetPixelBlue(p));
if (image->matte != MagickFalse)
SetPixelOpacity(q,GetPixelOpacity(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
break;
}
case LineInterlace:
{
static QuantumType
quantum_types[4] =
{
RedQuantum,
GreenQuantum,
BlueQuantum,
OpacityQuantum
};
/*
Line interlacing: YYY...CbCbCb...CrCrCr...YYY...CbCbCb...CrCrCr...
*/
if (scene == 0)
{
length=GetQuantumExtent(canvas_image,quantum_info,RedQuantum);
count=ReadBlob(image,length,pixels);
}
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
for (i=0; i < (image->matte != MagickFalse ? 4 : 3); i++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
quantum_type=quantum_types[i];
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,quantum_type,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,
0,canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
switch (quantum_type)
{
case RedQuantum:
{
SetPixelRed(q,GetPixelRed(p));
break;
}
case GreenQuantum:
{
SetPixelGreen(q,GetPixelGreen(p));
break;
}
case BlueQuantum:
{
SetPixelBlue(q,GetPixelBlue(p));
break;
}
case OpacityQuantum:
{
SetPixelOpacity(q,GetPixelOpacity(p));
break;
}
default:
break;
}
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
}
break;
}
case PlaneInterlace:
{
/*
Plane interlacing: YYYYYY...CbCbCbCbCbCb...CrCrCrCrCrCr...
*/
if (scene == 0)
{
length=GetQuantumExtent(canvas_image,quantum_info,RedQuantum);
count=ReadBlob(image,length,pixels);
}
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,RedQuantum,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelRed(q,GetPixelRed(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,1,5);
if (status == MagickFalse)
break;
}
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,GreenQuantum,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelGreen(q,GetPixelGreen(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,2,5);
if (status == MagickFalse)
break;
}
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,BlueQuantum,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelBlue(q,GetPixelBlue(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,3,5);
if (status == MagickFalse)
break;
}
if (image->matte != MagickFalse)
{
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,AlphaQuantum,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,
canvas_image->extract_info.x,0,canvas_image->columns,1,
exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelOpacity(q,GetPixelOpacity(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,4,5);
if (status == MagickFalse)
break;
}
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,5,5);
if (status == MagickFalse)
break;
}
break;
}
case PartitionInterlace:
{
/*
Partition interlacing: YYYYYY..., CbCbCbCbCbCb..., CrCrCrCrCrCr...
*/
AppendImageFormat("Y",image->filename);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
canvas_image=DestroyImageList(canvas_image);
image=DestroyImageList(image);
return((Image *) NULL);
}
if (DiscardBlobBytes(image,image->offset) == MagickFalse)
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
length=GetQuantumExtent(canvas_image,quantum_info,RedQuantum);
for (i=0; i < (ssize_t) scene; i++)
for (y=0; y < (ssize_t) image->extract_info.height; y++)
if (ReadBlob(image,length,pixels) != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
count=ReadBlob(image,length,pixels);
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,RedQuantum,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelRed(q,GetPixelRed(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,1,5);
if (status == MagickFalse)
break;
}
(void) CloseBlob(image);
AppendImageFormat("Cb",image->filename);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
canvas_image=DestroyImageList(canvas_image);
image=DestroyImageList(image);
return((Image *) NULL);
}
length=GetQuantumExtent(canvas_image,quantum_info,GreenQuantum);
for (i=0; i < (ssize_t) scene; i++)
for (y=0; y < (ssize_t) image->extract_info.height; y++)
if (ReadBlob(image,length,pixels) != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
count=ReadBlob(image,length,pixels);
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,GreenQuantum,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelGreen(q,GetPixelGreen(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,2,5);
if (status == MagickFalse)
break;
}
(void) CloseBlob(image);
AppendImageFormat("Cr",image->filename);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
canvas_image=DestroyImageList(canvas_image);
image=DestroyImageList(image);
return((Image *) NULL);
}
length=GetQuantumExtent(canvas_image,quantum_info,BlueQuantum);
for (i=0; i < (ssize_t) scene; i++)
for (y=0; y < (ssize_t) image->extract_info.height; y++)
if (ReadBlob(image,length,pixels) != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
count=ReadBlob(image,length,pixels);
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,BlueQuantum,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelBlue(q,GetPixelBlue(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,3,5);
if (status == MagickFalse)
break;
}
if (image->matte != MagickFalse)
{
(void) CloseBlob(image);
AppendImageFormat("A",image->filename);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
canvas_image=DestroyImageList(canvas_image);
image=DestroyImageList(image);
return((Image *) NULL);
}
length=GetQuantumExtent(canvas_image,quantum_info,AlphaQuantum);
for (i=0; i < (ssize_t) scene; i++)
for (y=0; y < (ssize_t) image->extract_info.height; y++)
if (ReadBlob(image,length,pixels) != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
count=ReadBlob(image,length,pixels);
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,BlueQuantum,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,
canvas_image->extract_info.x,0,canvas_image->columns,1,
exception);
q=GetAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelOpacity(q,GetPixelOpacity(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
count=ReadBlob(image,length,pixels);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,4,5);
if (status == MagickFalse)
break;
}
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,5,5);
if (status == MagickFalse)
break;
}
break;
}
}
SetQuantumImageType(image,quantum_type);
/*
Proceed to next image.
*/
if (image_info->number_scenes != 0)
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
if (count == (ssize_t) length)
{
/*
Allocate next image structure.
*/
AcquireNextImage(image_info,image);
if (GetNextImageInList(image) == (Image *) NULL)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
image=SyncNextImageInList(image);
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
GetBlobSize(image));
if (status == MagickFalse)
break;
}
scene++;
} while (count == (ssize_t) length);
quantum_info=DestroyQuantumInfo(quantum_info);
InheritException(&image->exception,&canvas_image->exception);
canvas_image=DestroyImage(canvas_image);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}