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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% DDDD PPPP X X %
% D D P P X X %
% D D PPPP XXX %
% D D P X X %
% DDDD P X X %
% %
% %
% Read/Write SMTPE DPX Image Format %
% %
% Software Design %
% Cristy %
% March 2001 %
% %
% %
% Copyright 1999-2021 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 "magick/studio.h"
#include "magick/artifact.h"
#include "magick/attribute.h"
#include "magick/blob.h"
#include "magick/blob-private.h"
#include "magick/cache.h"
#include "magick/colorspace.h"
#include "magick/colorspace-private.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/geometry.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/list.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/module.h"
#include "magick/monitor.h"
#include "magick/monitor-private.h"
#include "magick/option.h"
#include "magick/pixel-accessor.h"
#include "magick/profile.h"
#include "magick/property.h"
#include "magick/quantum-private.h"
#include "magick/static.h"
#include "magick/string_.h"
#include "magick/string-private.h"
#include "magick/timer-private.h"
/*
Define declaration.
*/
#define MaxNumberImageElements 8
/*
Typedef declaration.
*/
typedef enum
{
UserDefinedColorimetric = 0,
PrintingDensityColorimetric = 1,
LinearColorimetric = 2,
LogarithmicColorimetric = 3,
UnspecifiedVideoColorimetric = 4,
SMTPE_274MColorimetric = 5,
ITU_R709Colorimetric = 6,
ITU_R601_625LColorimetric = 7,
ITU_R601_525LColorimetric = 8,
NTSCCompositeVideoColorimetric = 9,
PALCompositeVideoColorimetric = 10,
ZDepthLinearColorimetric = 11,
DepthHomogeneousColorimetric = 12
} DPXColorimetric;
typedef enum
{
UndefinedComponentType = 0,
RedComponentType = 1,
GreenComponentType = 2,
BlueComponentType = 3,
AlphaComponentType = 4,
LumaComponentType = 6,
ColorDifferenceCbCrComponentType = 7,
DepthComponentType = 8,
CompositeVideoComponentType = 9,
RGBComponentType = 50,
RGBAComponentType = 51,
ABGRComponentType = 52,
CbYCrY422ComponentType = 100,
CbYACrYA4224ComponentType = 101,
CbYCr444ComponentType = 102,
CbYCrA4444ComponentType = 103,
UserDef2ElementComponentType = 150,
UserDef3ElementComponentType = 151,
UserDef4ElementComponentType = 152,
UserDef5ElementComponentType = 153,
UserDef6ElementComponentType = 154,
UserDef7ElementComponentType = 155,
UserDef8ElementComponentType = 156
} DPXComponentType;
typedef enum
{
TransferCharacteristicUserDefined = 0,
TransferCharacteristicPrintingDensity = 1,
TransferCharacteristicLinear = 2,
TransferCharacteristicLogarithmic = 3,
TransferCharacteristicUnspecifiedVideo = 4,
TransferCharacteristicSMTPE274M = 5, /* 1920x1080 TV */
TransferCharacteristicITU_R709 = 6, /* ITU R709 */
TransferCharacteristicITU_R601_625L = 7, /* 625 Line */
TransferCharacteristicITU_R601_525L = 8, /* 525 Line */
TransferCharacteristicNTSCCompositeVideo = 9,
TransferCharacteristicPALCompositeVideo = 10,
TransferCharacteristicZDepthLinear = 11,
TransferCharacteristicZDepthHomogeneous = 12
} DPXTransferCharacteristic;
typedef struct _DPXFileInfo
{
unsigned int
magic,
image_offset;
char
version[8];
unsigned int
file_size,
ditto_key,
generic_size,
industry_size,
user_size;
char
filename[100],
timestamp[24],
creator[100],
project[200],
copyright[200];
unsigned int
encrypt_key;
char
reserve[104];
} DPXFileInfo;
typedef struct _DPXFilmInfo
{
char
id[2],
type[2],
offset[2],
prefix[6],
count[4],
format[32];
unsigned int
frame_position,
sequence_extent,
held_count;
float
frame_rate,
shutter_angle;
char
frame_id[32],
slate[100],
reserve[56];
} DPXFilmInfo;
typedef struct _DPXImageElement
{
unsigned int
data_sign,
low_data;
float
low_quantity;
unsigned int
high_data;
float
high_quantity;
unsigned char
descriptor,
transfer_characteristic,
colorimetric,
bit_size;
unsigned short
packing,
encoding;
unsigned int
data_offset,
end_of_line_padding,
end_of_image_padding;
unsigned char
description[32];
} DPXImageElement;
typedef struct _DPXImageInfo
{
unsigned short
orientation,
number_elements;
unsigned int
pixels_per_line,
lines_per_element;
DPXImageElement
image_element[MaxNumberImageElements];
unsigned char
reserve[52];
} DPXImageInfo;
typedef struct _DPXOrientationInfo
{
unsigned int
x_offset,
y_offset;
float
x_center,
y_center;
unsigned int
x_size,
y_size;
char
filename[100],
timestamp[24],
device[32],
serial[32];
unsigned short
border[4];
unsigned int
aspect_ratio[2];
unsigned char
reserve[28];
} DPXOrientationInfo;
typedef struct _DPXTelevisionInfo
{
unsigned int
time_code,
user_bits;
unsigned char
interlace,
field_number,
video_signal,
padding;
float
horizontal_sample_rate,
vertical_sample_rate,
frame_rate,
time_offset,
gamma,
black_level,
black_gain,
break_point,
white_level,
integration_times;
char
reserve[76];
} DPXTelevisionInfo;
typedef struct _DPXUserInfo
{
char
id[32];
} DPXUserInfo;
typedef struct DPXInfo
{
DPXFileInfo
file;
DPXImageInfo
image;
DPXOrientationInfo
orientation;
DPXFilmInfo
film;
DPXTelevisionInfo
television;
DPXUserInfo
user;
} DPXInfo;
/*
Forward declaractions.
*/
static MagickBooleanType
WriteDPXImage(const ImageInfo *,Image *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I s D P X %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IsDPX() returns MagickTrue if the image format type, identified by the
% magick string, is DPX.
%
% The format of the IsDPX method is:
%
% MagickBooleanType IsDPX(const unsigned char *magick,const size_t extent)
%
% A description of each parameter follows:
%
% o magick: compare image format pattern against these bytes.
%
% o extent: Specifies the extent of the magick string.
%
*/
static MagickBooleanType IsDPX(const unsigned char *magick,const size_t extent)
{
if (extent < 4)
return(MagickFalse);
if (memcmp(magick,"SDPX",4) == 0)
return(MagickTrue);
if (memcmp(magick,"XPDS",4) == 0)
return(MagickTrue);
return(MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d D P X I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadDPXImage() reads an DPX X 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 ReadDPXImage method is:
%
% Image *ReadDPXImage(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 size_t GetBytesPerRow(const size_t columns,
const size_t samples_per_pixel,const size_t bits_per_pixel,
const MagickBooleanType pad)
{
size_t
bytes_per_row;
switch (bits_per_pixel)
{
case 1:
{
bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
32);
break;
}
case 8:
default:
{
bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
32);
break;
}
case 10:
{
if (pad == MagickFalse)
{
bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+
31)/32);
break;
}
bytes_per_row=4*(((size_t) (32*((samples_per_pixel*columns+2)/3))+31)/32);
break;
}
case 12:
{
if (pad == MagickFalse)
{
bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+
31)/32);
break;
}
bytes_per_row=2*(((size_t) (16*samples_per_pixel*columns)+15)/16);
break;
}
case 16:
{
if (pad == MagickFalse)
{
bytes_per_row=2*(((size_t) samples_per_pixel*columns*bits_per_pixel+
15)/16);
break;
}
bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
32);
break;
}
case 32:
{
bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
32);
break;
}
case 64:
{
bytes_per_row=8*(((size_t) samples_per_pixel*columns*bits_per_pixel+63)/
64);
break;
}
}
return(bytes_per_row);
}
static const char *GetImageTransferCharacteristic(
const DPXTransferCharacteristic characteristic)
{
const char
*transfer;
/*
Get the element transfer characteristic.
*/
switch(characteristic)
{
case TransferCharacteristicUserDefined:
{
transfer="UserDefined";
break;
}
case TransferCharacteristicPrintingDensity:
{
transfer="PrintingDensity";
break;
}
case TransferCharacteristicLinear:
{
transfer="Linear";
break;
}
case TransferCharacteristicLogarithmic:
{
transfer="Logarithmic";
break;
}
case TransferCharacteristicUnspecifiedVideo:
{
transfer="UnspecifiedVideo";
break;
}
case TransferCharacteristicSMTPE274M:
{
transfer="SMTPE274M";
break;
}
case TransferCharacteristicITU_R709:
{
transfer="ITU-R709";
break;
}
case TransferCharacteristicITU_R601_625L:
{
transfer="ITU-R601-625L";
break;
}
case TransferCharacteristicITU_R601_525L:
{
transfer="ITU-R601-525L";
break;
}
case TransferCharacteristicNTSCCompositeVideo:
{
transfer="NTSCCompositeVideo";
break;
}
case TransferCharacteristicPALCompositeVideo:
{
transfer="PALCompositeVideo";
break;
}
case TransferCharacteristicZDepthLinear:
{
transfer="ZDepthLinear";
break;
}
case TransferCharacteristicZDepthHomogeneous:
{
transfer="ZDepthHomogeneous";
break;
}
default:
transfer="Reserved";
}
return(transfer);
}
static inline MagickBooleanType IsFloatDefined(const float value)
{
union
{
unsigned int
unsigned_value;
float
float_value;
} quantum;
quantum.unsigned_value=0U;
quantum.float_value=value;
if (quantum.unsigned_value == 0U)
return(MagickFalse);
return(MagickTrue);
}
static void SetPrimaryChromaticity(const DPXColorimetric colorimetric,
ChromaticityInfo *chromaticity_info)
{
switch(colorimetric)
{
case SMTPE_274MColorimetric:
case ITU_R709Colorimetric:
{
chromaticity_info->red_primary.x=0.640;
chromaticity_info->red_primary.y=0.330;
chromaticity_info->red_primary.z=0.030;
chromaticity_info->green_primary.x=0.300;
chromaticity_info->green_primary.y=0.600;
chromaticity_info->green_primary.z=0.100;
chromaticity_info->blue_primary.x=0.150;
chromaticity_info->blue_primary.y=0.060;
chromaticity_info->blue_primary.z=0.790;
chromaticity_info->white_point.x=0.3127;
chromaticity_info->white_point.y=0.3290;
chromaticity_info->white_point.z=0.3582;
break;
}
case NTSCCompositeVideoColorimetric:
{
chromaticity_info->red_primary.x=0.67;
chromaticity_info->red_primary.y=0.33;
chromaticity_info->red_primary.z=0.00;
chromaticity_info->green_primary.x=0.21;
chromaticity_info->green_primary.y=0.71;
chromaticity_info->green_primary.z=0.08;
chromaticity_info->blue_primary.x=0.14;
chromaticity_info->blue_primary.y=0.08;
chromaticity_info->blue_primary.z=0.78;
chromaticity_info->white_point.x=0.310;
chromaticity_info->white_point.y=0.316;
chromaticity_info->white_point.z=0.374;
break;
}
case PALCompositeVideoColorimetric:
{
chromaticity_info->red_primary.x=0.640;
chromaticity_info->red_primary.y=0.330;
chromaticity_info->red_primary.z=0.030;
chromaticity_info->green_primary.x=0.290;
chromaticity_info->green_primary.y=0.600;
chromaticity_info->green_primary.z=0.110;
chromaticity_info->blue_primary.x=0.150;
chromaticity_info->blue_primary.y=0.060;
chromaticity_info->blue_primary.z=0.790;
chromaticity_info->white_point.x=0.3127;
chromaticity_info->white_point.y=0.3290;
chromaticity_info->white_point.z=0.3582;
break;
}
default:
break;
}
}
static void TimeCodeToString(const size_t timestamp,char *code)
{
#define TimeFields 7
unsigned int
shift;
ssize_t
i;
*code='\0';
shift=4*TimeFields;
for (i=0; i <= TimeFields; i++)
{
(void) FormatLocaleString(code,MaxTextExtent-strlen(code),"%x",
(unsigned int) ((timestamp >> shift) & 0x0fU));
code++;
if (((i % 2) != 0) && (i < TimeFields))
*code++=':';
shift-=4;
*code='\0';
}
}
static Image *ReadDPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
char
magick[4],
value[MaxTextExtent];
DPXInfo
dpx;
Image
*image;
MagickBooleanType
status;
MagickOffsetType
offset;
QuantumInfo
*quantum_info;
QuantumType
quantum_type;
ssize_t
i;
size_t
extent,
samples_per_pixel;
ssize_t
count,
n,
row,
y;
unsigned char
component_type;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickCoreSignature);
image=AcquireImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
/*
Read DPX file header.
*/
offset=0;
count=ReadBlob(image,4,(unsigned char *) magick);
offset+=count;
if ((count != 4) || ((LocaleNCompare(magick,"SDPX",4) != 0) &&
(LocaleNCompare((char *) magick,"XPDS",4) != 0)))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
image->endian=LSBEndian;
if (LocaleNCompare(magick,"SDPX",4) == 0)
image->endian=MSBEndian;
(void) memset(&dpx,0,sizeof(dpx));
dpx.file.image_offset=ReadBlobLong(image);
offset+=4;
offset+=ReadBlob(image,sizeof(dpx.file.version),(unsigned char *)
dpx.file.version);
(void) FormatImageProperty(image,"dpx:file.version","%.8s",dpx.file.version);
dpx.file.file_size=ReadBlobLong(image);
offset+=4;
dpx.file.ditto_key=ReadBlobLong(image);
offset+=4;
if (dpx.file.ditto_key != ~0U)
(void) FormatImageProperty(image,"dpx:file.ditto.key","%u",
dpx.file.ditto_key);
dpx.file.generic_size=ReadBlobLong(image);
offset+=4;
dpx.file.industry_size=ReadBlobLong(image);
offset+=4;
dpx.file.user_size=ReadBlobLong(image);
offset+=4;
offset+=ReadBlob(image,sizeof(dpx.file.filename),(unsigned char *)
dpx.file.filename);
(void) FormatImageProperty(image,"dpx:file.filename","%.100s",
dpx.file.filename);
(void) FormatImageProperty(image,"document","%.100s",dpx.file.filename);
offset+=ReadBlob(image,sizeof(dpx.file.timestamp),(unsigned char *)
dpx.file.timestamp);
if (*dpx.file.timestamp != '\0')
(void) FormatImageProperty(image,"dpx:file.timestamp","%.24s",
dpx.file.timestamp);
offset+=ReadBlob(image,sizeof(dpx.file.creator),(unsigned char *)
dpx.file.creator);
if (*dpx.file.creator == '\0')
{
char
*url;
url=GetMagickHomeURL();
(void) FormatImageProperty(image,"dpx:file.creator","%.100s",url);
(void) FormatImageProperty(image,"software","%.100s",url);
url=DestroyString(url);
}
else
{
(void) FormatImageProperty(image,"dpx:file.creator","%.100s",
dpx.file.creator);
(void) FormatImageProperty(image,"software","%.100s",dpx.file.creator);
}
offset+=ReadBlob(image,sizeof(dpx.file.project),(unsigned char *)
dpx.file.project);
if (*dpx.file.project != '\0')
{
(void) FormatImageProperty(image,"dpx:file.project","%.200s",
dpx.file.project);
(void) FormatImageProperty(image,"comment","%.100s",dpx.file.project);
}
offset+=ReadBlob(image,sizeof(dpx.file.copyright),(unsigned char *)
dpx.file.copyright);
if (*dpx.file.copyright != '\0')
{
(void) FormatImageProperty(image,"dpx:file.copyright","%.200s",
dpx.file.copyright);
(void) FormatImageProperty(image,"copyright","%.100s",
dpx.file.copyright);
}
dpx.file.encrypt_key=ReadBlobLong(image);
offset+=4;
if (dpx.file.encrypt_key != ~0U)
(void) FormatImageProperty(image,"dpx:file.encrypt_key","%u",
dpx.file.encrypt_key);
offset+=ReadBlob(image,sizeof(dpx.file.reserve),(unsigned char *)
dpx.file.reserve);
/*
Read DPX image header.
*/
dpx.image.orientation=ReadBlobShort(image);
if (dpx.image.orientation > 7)
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
offset+=2;
if (dpx.image.orientation != (unsigned short) ~0)
(void) FormatImageProperty(image,"dpx:image.orientation","%d",
dpx.image.orientation);
switch (dpx.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;
}
dpx.image.number_elements=ReadBlobShort(image);
if ((dpx.image.number_elements < 1) ||
(dpx.image.number_elements > MaxNumberImageElements))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
offset+=2;
dpx.image.pixels_per_line=ReadBlobLong(image);
offset+=4;
image->columns=dpx.image.pixels_per_line;
dpx.image.lines_per_element=ReadBlobLong(image);
offset+=4;
image->rows=dpx.image.lines_per_element;
for (i=0; i < 8; i++)
{
char
property[MaxTextExtent];
dpx.image.image_element[i].data_sign=ReadBlobLong(image);
offset+=4;
dpx.image.image_element[i].low_data=ReadBlobLong(image);
offset+=4;
dpx.image.image_element[i].low_quantity=ReadBlobFloat(image);
offset+=4;
dpx.image.image_element[i].high_data=ReadBlobLong(image);
offset+=4;
dpx.image.image_element[i].high_quantity=ReadBlobFloat(image);
offset+=4;
dpx.image.image_element[i].descriptor=(unsigned char) ReadBlobByte(image);
offset++;
dpx.image.image_element[i].transfer_characteristic=(unsigned char)
ReadBlobByte(image);
(void) FormatLocaleString(property,MaxTextExtent,
"dpx:image.element[%lu].transfer-characteristic",(long) i);
(void) FormatImageProperty(image,property,"%s",
GetImageTransferCharacteristic((DPXTransferCharacteristic)
dpx.image.image_element[i].transfer_characteristic));
offset++;
dpx.image.image_element[i].colorimetric=(unsigned char) ReadBlobByte(image);
offset++;
dpx.image.image_element[i].bit_size=(unsigned char) ReadBlobByte(image);
offset++;
dpx.image.image_element[i].packing=ReadBlobShort(image);
offset+=2;
dpx.image.image_element[i].encoding=ReadBlobShort(image);
offset+=2;
dpx.image.image_element[i].data_offset=ReadBlobLong(image);
offset+=4;
dpx.image.image_element[i].end_of_line_padding=ReadBlobLong(image);
offset+=4;
dpx.image.image_element[i].end_of_image_padding=ReadBlobLong(image);
offset+=4;
offset+=ReadBlob(image,sizeof(dpx.image.image_element[i].description),
(unsigned char *) dpx.image.image_element[i].description);
}
(void) SetImageColorspace(image,RGBColorspace);
offset+=ReadBlob(image,sizeof(dpx.image.reserve),(unsigned char *)
dpx.image.reserve);
if (dpx.file.image_offset >= 1664U)
{
/*
Read DPX orientation header.
*/
dpx.orientation.x_offset=ReadBlobLong(image);
offset+=4;
if (dpx.orientation.x_offset != ~0U)
(void) FormatImageProperty(image,"dpx:orientation.x_offset","%u",
dpx.orientation.x_offset);
dpx.orientation.y_offset=ReadBlobLong(image);
offset+=4;
if (dpx.orientation.y_offset != ~0U)
(void) FormatImageProperty(image,"dpx:orientation.y_offset","%u",
dpx.orientation.y_offset);
dpx.orientation.x_center=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.orientation.x_center) != MagickFalse)
(void) FormatImageProperty(image,"dpx:orientation.x_center","%g",
dpx.orientation.x_center);
dpx.orientation.y_center=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.orientation.y_center) != MagickFalse)
(void) FormatImageProperty(image,"dpx:orientation.y_center","%g",
dpx.orientation.y_center);
dpx.orientation.x_size=ReadBlobLong(image);
offset+=4;
if (dpx.orientation.x_size != ~0U)
(void) FormatImageProperty(image,"dpx:orientation.x_size","%u",
dpx.orientation.x_size);
dpx.orientation.y_size=ReadBlobLong(image);
offset+=4;
if (dpx.orientation.y_size != ~0U)
(void) FormatImageProperty(image,"dpx:orientation.y_size","%u",
dpx.orientation.y_size);
offset+=ReadBlob(image,sizeof(dpx.orientation.filename),(unsigned char *)
dpx.orientation.filename);
if (*dpx.orientation.filename != '\0')
(void) FormatImageProperty(image,"dpx:orientation.filename","%.100s",
dpx.orientation.filename);
offset+=ReadBlob(image,sizeof(dpx.orientation.timestamp),(unsigned char *)
dpx.orientation.timestamp);
if (*dpx.orientation.timestamp != '\0')
(void) FormatImageProperty(image,"dpx:orientation.timestamp","%.24s",
dpx.orientation.timestamp);
offset+=ReadBlob(image,sizeof(dpx.orientation.device),(unsigned char *)
dpx.orientation.device);
if (*dpx.orientation.device != '\0')
(void) FormatImageProperty(image,"dpx:orientation.device","%.32s",
dpx.orientation.device);
offset+=ReadBlob(image,sizeof(dpx.orientation.serial),(unsigned char *)
dpx.orientation.serial);
if (*dpx.orientation.serial != '\0')
(void) FormatImageProperty(image,"dpx:orientation.serial","%.32s",
dpx.orientation.serial);
for (i=0; i < 4; i++)
{
dpx.orientation.border[i]=ReadBlobShort(image);
offset+=2;
}
if ((dpx.orientation.border[0] != (unsigned short) (~0)) &&
(dpx.orientation.border[1] != (unsigned short) (~0)))
(void) FormatImageProperty(image,"dpx:orientation.border","%dx%d%+d%+d", dpx.orientation.border[0],dpx.orientation.border[1],
dpx.orientation.border[2],dpx.orientation.border[3]);
for (i=0; i < 2; i++)
{
dpx.orientation.aspect_ratio[i]=ReadBlobLong(image);
offset+=4;
}
if ((dpx.orientation.aspect_ratio[0] != ~0U) &&
(dpx.orientation.aspect_ratio[1] != ~0U))
(void) FormatImageProperty(image,"dpx:orientation.aspect_ratio",
"%ux%u",dpx.orientation.aspect_ratio[0],
dpx.orientation.aspect_ratio[1]);
offset+=ReadBlob(image,sizeof(dpx.orientation.reserve),(unsigned char *)
dpx.orientation.reserve);
}
if (dpx.file.image_offset >= 1920U)
{
/*
Read DPX film header.
*/
offset+=ReadBlob(image,sizeof(dpx.film.id),(unsigned char *) dpx.film.id);
if (*dpx.film.id != '\0')
(void) FormatImageProperty(image,"dpx:film.id","%.2s",dpx.film.id);
offset+=ReadBlob(image,sizeof(dpx.film.type),(unsigned char *)
dpx.film.type);
if (*dpx.film.type != '\0')
(void) FormatImageProperty(image,"dpx:film.type","%.2s",dpx.film.type);
offset+=ReadBlob(image,sizeof(dpx.film.offset),(unsigned char *)
dpx.film.offset);
if (*dpx.film.offset != '\0')
(void) FormatImageProperty(image,"dpx:film.offset","%.2s",
dpx.film.offset);
offset+=ReadBlob(image,sizeof(dpx.film.prefix),(unsigned char *)
dpx.film.prefix);
if (*dpx.film.prefix != '\0')
(void) FormatImageProperty(image,"dpx:film.prefix","%.6s",
dpx.film.prefix);
offset+=ReadBlob(image,sizeof(dpx.film.count),(unsigned char *)
dpx.film.count);
if (*dpx.film.count != '\0')
(void) FormatImageProperty(image,"dpx:film.count","%.4s",
dpx.film.count);
offset+=ReadBlob(image,sizeof(dpx.film.format),(unsigned char *)
dpx.film.format);
if (*dpx.film.format != '\0')
(void) FormatImageProperty(image,"dpx:film.format","%.4s",
dpx.film.format);
dpx.film.frame_position=ReadBlobLong(image);
offset+=4;
if (dpx.film.frame_position != ~0U)
(void) FormatImageProperty(image,"dpx:film.frame_position","%u",
dpx.film.frame_position);
dpx.film.sequence_extent=ReadBlobLong(image);
offset+=4;
if (dpx.film.sequence_extent != ~0U)
(void) FormatImageProperty(image,"dpx:film.sequence_extent","%u",
dpx.film.sequence_extent);
dpx.film.held_count=ReadBlobLong(image);
offset+=4;
if (dpx.film.held_count != ~0U)
(void) FormatImageProperty(image,"dpx:film.held_count","%u",
dpx.film.held_count);
dpx.film.frame_rate=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.film.frame_rate) != MagickFalse)
(void) FormatImageProperty(image,"dpx:film.frame_rate","%g",
dpx.film.frame_rate);
dpx.film.shutter_angle=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.film.shutter_angle) != MagickFalse)
(void) FormatImageProperty(image,"dpx:film.shutter_angle","%g",
dpx.film.shutter_angle);
offset+=ReadBlob(image,sizeof(dpx.film.frame_id),(unsigned char *)
dpx.film.frame_id);
if (*dpx.film.frame_id != '\0')
(void) FormatImageProperty(image,"dpx:film.frame_id","%.32s",
dpx.film.frame_id);
offset+=ReadBlob(image,sizeof(dpx.film.slate),(unsigned char *)
dpx.film.slate);
if (*dpx.film.slate != '\0')
(void) FormatImageProperty(image,"dpx:film.slate","%.100s",
dpx.film.slate);
offset+=ReadBlob(image,sizeof(dpx.film.reserve),(unsigned char *)
dpx.film.reserve);
}
if (dpx.file.image_offset >= 2048U)
{
/*
Read DPX television header.
*/
dpx.television.time_code=(unsigned int) ReadBlobLong(image);
offset+=4;
TimeCodeToString(dpx.television.time_code,value);
(void) SetImageProperty(image,"dpx:television.time.code",value);
dpx.television.user_bits=(unsigned int) ReadBlobLong(image);
offset+=4;
TimeCodeToString(dpx.television.user_bits,value);
(void) SetImageProperty(image,"dpx:television.user.bits",value);
dpx.television.interlace=(unsigned char) ReadBlobByte(image);
offset++;
if (dpx.television.interlace != 0)
(void) FormatImageProperty(image,"dpx:television.interlace","%.20g",
(double) dpx.television.interlace);
dpx.television.field_number=(unsigned char) ReadBlobByte(image);
offset++;
if (dpx.television.field_number != 0)
(void) FormatImageProperty(image,"dpx:television.field_number","%.20g",
(double) dpx.television.field_number);
dpx.television.video_signal=(unsigned char) ReadBlobByte(image);
offset++;
if (dpx.television.video_signal != 0)
(void) FormatImageProperty(image,"dpx:television.video_signal","%.20g",
(double) dpx.television.video_signal);
dpx.television.padding=(unsigned char) ReadBlobByte(image);
offset++;
if (dpx.television.padding != 0)
(void) FormatImageProperty(image,"dpx:television.padding","%d",
dpx.television.padding);
dpx.television.horizontal_sample_rate=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.horizontal_sample_rate) != MagickFalse)
(void) FormatImageProperty(image,
"dpx:television.horizontal_sample_rate","%g",
dpx.television.horizontal_sample_rate);
dpx.television.vertical_sample_rate=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.vertical_sample_rate) != MagickFalse)
(void) FormatImageProperty(image,"dpx:television.vertical_sample_rate",
"%g",dpx.television.vertical_sample_rate);
dpx.television.frame_rate=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.frame_rate) != MagickFalse)
(void) FormatImageProperty(image,"dpx:television.frame_rate","%g",
dpx.television.frame_rate);
dpx.television.time_offset=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.time_offset) != MagickFalse)
(void) FormatImageProperty(image,"dpx:television.time_offset","%g",
dpx.television.time_offset);
dpx.television.gamma=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.gamma) != MagickFalse)
(void) FormatImageProperty(image,"dpx:television.gamma","%g",
dpx.television.gamma);
dpx.television.black_level=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.black_level) != MagickFalse)
(void) FormatImageProperty(image,"dpx:television.black_level","%g",
dpx.television.black_level);
dpx.television.black_gain=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.black_gain) != MagickFalse)
(void) FormatImageProperty(image,"dpx:television.black_gain","%g",
dpx.television.black_gain);
dpx.television.break_point=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.break_point) != MagickFalse)
(void) FormatImageProperty(image,"dpx:television.break_point","%g",
dpx.television.break_point);
dpx.television.white_level=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.white_level) != MagickFalse)
(void) FormatImageProperty(image,"dpx:television.white_level","%g",
dpx.television.white_level);
dpx.television.integration_times=ReadBlobFloat(image);
offset+=4;
if (IsFloatDefined(dpx.television.integration_times) != MagickFalse)
(void) FormatImageProperty(image,"dpx:television.integration_times",
"%g",dpx.television.integration_times);
offset+=ReadBlob(image,sizeof(dpx.television.reserve),(unsigned char *)
dpx.television.reserve);
}
if (dpx.file.image_offset > 2080U)
{
/*
Read DPX user header.
*/
offset+=ReadBlob(image,sizeof(dpx.user.id),(unsigned char *) dpx.user.id);
if (*dpx.user.id != '\0')
(void) FormatImageProperty(image,"dpx:user.id","%.32s",dpx.user.id);
if ((dpx.file.user_size != ~0U) &&
((size_t) dpx.file.user_size > sizeof(dpx.user.id)))
{
StringInfo
*profile;
if ((MagickSizeType) dpx.file.user_size > GetBlobSize(image))
ThrowReaderException(CorruptImageError,
"InsufficientImageDataInFile");
profile=BlobToStringInfo((const void *) NULL,
dpx.file.user_size-sizeof(dpx.user.id));
if (profile == (StringInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
offset+=ReadBlob(image,GetStringInfoLength(profile),
GetStringInfoDatum(profile));
if (EOFBlob(image) != MagickFalse)
(void) SetImageProfile(image,"dpx:user-data",profile);
profile=DestroyStringInfo(profile);
}
}
for ( ; offset < (MagickOffsetType) dpx.file.image_offset; offset++)
if (ReadBlobByte(image) == EOF)
break;
if (EOFBlob(image) != MagickFalse)
{
ThrowFileException(&image->exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
return(DestroyImageList(image));
}
if (image_info->ping != MagickFalse)
{
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
status=SetImageExtent(image,image->columns,image->rows);
if (status == MagickFalse)
{
InheritException(exception,&image->exception);
return(DestroyImageList(image));
}
status=ResetImagePixels(image,exception);
if (status == MagickFalse)
{
InheritException(exception,&image->exception);
return(DestroyImageList(image));
}
for (n=0; n < (ssize_t) dpx.image.number_elements; n++)
{
unsigned char
*pixels;
/*
Convert DPX raster image to pixel packets.
*/
if ((dpx.image.image_element[n].data_offset != ~0U) &&
(dpx.image.image_element[n].data_offset != 0U))
{
MagickOffsetType
data_offset;
data_offset=(MagickOffsetType) dpx.image.image_element[n].data_offset;
if (data_offset < offset)
offset=SeekBlob(image,data_offset,SEEK_SET);
else
for ( ; offset < data_offset; offset++)
if (ReadBlobByte(image) == EOF)
break;
if (offset != data_offset)
ThrowReaderException(CorruptImageError,"UnableToReadImageData");
}
SetPrimaryChromaticity((DPXColorimetric)
dpx.image.image_element[n].colorimetric,&image->chromaticity);
image->depth=dpx.image.image_element[n].bit_size;
if ((image->depth == 0) || (image->depth > 32))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
samples_per_pixel=1;
quantum_type=GrayQuantum;
component_type=dpx.image.image_element[n].descriptor;
switch (component_type)
{
case CbYCrY422ComponentType:
{
samples_per_pixel=2;
quantum_type=CbYCrYQuantum;
break;
}
case CbYACrYA4224ComponentType:
case CbYCr444ComponentType:
{
samples_per_pixel=3;
quantum_type=CbYCrQuantum;
break;
}
case RGBComponentType:
{
samples_per_pixel=3;
quantum_type=RGBQuantum;
break;
}
case ABGRComponentType:
case RGBAComponentType:
{
image->matte=MagickTrue;
samples_per_pixel=4;
quantum_type=RGBAQuantum;
break;
}
default:
break;
}
switch (component_type)
{
case CbYCrY422ComponentType:
case CbYACrYA4224ComponentType:
case CbYCr444ComponentType:
{
(void) SetImageColorspace(image,Rec709YCbCrColorspace);
break;
}
case LumaComponentType:
{
(void) SetImageColorspace(image,GRAYColorspace);
break;
}
default:
{
(void) SetImageColorspace(image,RGBColorspace);
if (dpx.image.image_element[n].transfer_characteristic == LogarithmicColorimetric)
(void) SetImageColorspace(image,LogColorspace);
if (dpx.image.image_element[n].transfer_characteristic == PrintingDensityColorimetric)
(void) SetImageColorspace(image,LogColorspace);
break;
}
}
extent=GetBytesPerRow(image->columns,samples_per_pixel,image->depth,
dpx.image.image_element[n].packing == 0 ? MagickFalse : MagickTrue);
/*
DPX any-bit pixel format.
*/
row=0;
quantum_info=AcquireQuantumInfo(image_info,image);
if (quantum_info == (QuantumInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
SetQuantumQuantum(quantum_info,32);
SetQuantumPack(quantum_info,dpx.image.image_element[n].packing == 0 ?
MagickTrue : MagickFalse);
pixels=GetQuantumPixels(quantum_info);
for (y=0; y < (ssize_t) image->rows; y++)
{
const void
*stream;
MagickBooleanType
sync;
PixelPacket
*q;
size_t
length;
ssize_t
count,
row_offset;
stream=ReadBlobStream(image,extent,pixels,&count);
if (count != (ssize_t) extent)
break;
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(image->previous == (Image *) NULL))
{
MagickBooleanType
proceed;
proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType) row,
image->rows);
if (proceed == MagickFalse)
break;
}
row_offset=row++;
q=QueueAuthenticPixels(image,0,row_offset,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
quantum_type,(unsigned char *) stream,exception);
(void) length;
sync=SyncAuthenticPixels(image,exception);
if (sync == MagickFalse)
break;
}
quantum_info=DestroyQuantumInfo(quantum_info);
if (y < (ssize_t) image->rows)
ThrowReaderException(CorruptImageError,"UnableToReadImageData");
SetQuantumImageType(image,quantum_type);
if (EOFBlob(image) != MagickFalse)
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
if ((i+1) < (ssize_t) dpx.image.number_elements)
{
/*
Allocate next image structure.
*/
AcquireNextImage(image_info,image);
if (GetNextImageInList(image) == (Image *) NULL)
{
status=MagickFalse;
break;
}
image=SyncNextImageInList(image);
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
GetBlobSize(image));
if (status == MagickFalse)
break;
}
}
(void) CloseBlob(image);
if (status == MagickFalse)
return(DestroyImageList(image));
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r D P X I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RegisterDPXImage() adds properties for the DPX image format to
% the list of supported formats. The properties 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 RegisterDPXImage method is:
%
% size_t RegisterDPXImage(void)
%
*/
ModuleExport size_t RegisterDPXImage(void)
{
MagickInfo
*entry;
static const char
*DPXNote =
{
"Digital Moving Picture Exchange Bitmap, Version 2.0.\n"
"See SMPTE 268M-2003 specification at http://www.smtpe.org\n"
};
entry=SetMagickInfo("DPX");
entry->decoder=(DecodeImageHandler *) ReadDPXImage;
entry->encoder=(EncodeImageHandler *) WriteDPXImage;
entry->magick=(IsImageFormatHandler *) IsDPX;
entry->seekable_stream=MagickTrue;
entry->adjoin=MagickFalse;
entry->description=ConstantString("SMPTE 268M-2003 (DPX 2.0)");
entry->note=ConstantString(DPXNote);
entry->magick_module=ConstantString("DPX");
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r D P X I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnregisterDPXImage() removes format registrations made by the
% DPX module from the list of supported formats.
%
% The format of the UnregisterDPXImage method is:
%
% UnregisterDPXImage(void)
%
*/
ModuleExport void UnregisterDPXImage(void)
{
(void) UnregisterMagickInfo("DPX");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e D P X I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WriteDPXImage() writes an image in DPX encoded image format.
%
% The format of the WriteDPXImage method is:
%
% MagickBooleanType WriteDPXImage(const ImageInfo *image_info,Image *image)
%
% A description of each parameter follows.
%
% o image_info: the image info.
%
% o image: The image.
%
*/
static unsigned int StringToTimeCode(const char *key)
{
char
buffer[2];
ssize_t
i;
unsigned int
shift,
value;
value=0;
shift=28;
buffer[1]='\0';
for (i=0; (*key != 0) && (i < 11); i++)
{
if (isxdigit((int) ((unsigned char) *key)) == 0)
{
key++;
continue;
}
buffer[0]=(*key++);
value|=(unsigned int) ((strtol(buffer,(char **) NULL,16)) << shift);
shift-=4;
}
return(value);
}
static inline const char *GetDPXProperty(const Image *image,
const char *property)
{
const char
*value;
value=GetImageArtifact(image,property);
if (value != (const char *) NULL)
return(value);
return(GetImageProperty(image,property));
}
static MagickBooleanType WriteDPXImage(const ImageInfo *image_info,
Image *image)
{
const char
*value;
const StringInfo
*profile;
DPXInfo
dpx;
MagickBooleanType
status;
MagickOffsetType
offset;
MagickStatusType
flags;
GeometryInfo
geometry_info;
QuantumInfo
*quantum_info;
QuantumType
quantum_type;
const PixelPacket
*p;
ssize_t
i;
ssize_t
count,
horizontal_factor,
vertical_factor,
y;
size_t
channels,
extent,
samples_per_pixel;
time_t
seconds;
unsigned char
component_type,
*pixels;
/*
Open output image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
horizontal_factor=4;
vertical_factor=4;
if (image_info->sampling_factor != (char *) NULL)
{
GeometryInfo
geometry_info;
MagickStatusType
flags;
flags=ParseGeometry(image_info->sampling_factor,&geometry_info);
horizontal_factor=(ssize_t) geometry_info.rho;
vertical_factor=(ssize_t) geometry_info.sigma;
if ((flags & SigmaValue) == 0)
vertical_factor=horizontal_factor;
if ((horizontal_factor != 1) && (horizontal_factor != 2) &&
(horizontal_factor != 4) && (vertical_factor != 1) &&
(vertical_factor != 2) && (vertical_factor != 4))
ThrowWriterException(CorruptImageError,"UnexpectedSamplingFactor");
}
if ((IsYCbCrCompatibleColorspace(image->colorspace) != MagickFalse) &&
((horizontal_factor == 2) || (vertical_factor == 2)))
if ((image->columns % 2) != 0)
image->columns++;
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
/*
Write file header.
*/
(void) memset(&dpx,0,sizeof(dpx));
offset=0;
dpx.file.magic=0x53445058U;
offset+=WriteBlobLong(image,dpx.file.magic);
dpx.file.image_offset=0x2000U;
profile=GetImageProfile(image,"dpx:user-data");
if (profile != (StringInfo *) NULL)
{
if (GetStringInfoLength(profile) > 1048576)
ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
dpx.file.image_offset+=(unsigned int) GetStringInfoLength(profile);
dpx.file.image_offset=(((dpx.file.image_offset+0x2000-1)/0x2000)*0x2000);
}
offset+=WriteBlobLong(image,dpx.file.image_offset);
(void) strncpy(dpx.file.version,"V2.0",sizeof(dpx.file.version)-1);
offset+=WriteBlob(image,8,(unsigned char *) &dpx.file.version);
channels=1;
if (IsGrayImage(image,&image->exception) == MagickFalse)
channels=3;
if (image->matte != MagickFalse)
channels++;
dpx.file.file_size=(unsigned int) (channels*image->columns*image->rows+
dpx.file.image_offset);
offset+=WriteBlobLong(image,dpx.file.file_size);
dpx.file.ditto_key=1U; /* new frame */
offset+=WriteBlobLong(image,dpx.file.ditto_key);
dpx.file.generic_size=0x00000680U;
offset+=WriteBlobLong(image,dpx.file.generic_size);
dpx.file.industry_size=0x00000180U;
offset+=WriteBlobLong(image,dpx.file.industry_size);
dpx.file.user_size=0;
if (profile != (StringInfo *) NULL)
{
dpx.file.user_size+=(unsigned int) GetStringInfoLength(profile);
dpx.file.user_size=(((dpx.file.user_size+0x2000-1)/0x2000)*0x2000);
}
offset+=WriteBlobLong(image,dpx.file.user_size);
value=GetDPXProperty(image,"dpx:file.filename");
if (value != (const char *) NULL)
(void) strncpy(dpx.file.filename,value,sizeof(dpx.file.filename)-1);
offset+=WriteBlob(image,sizeof(dpx.file.filename),(unsigned char *)
dpx.file.filename);
seconds=GetMagickTime();
(void) FormatMagickTime(seconds,sizeof(dpx.file.timestamp),
dpx.file.timestamp);
offset+=WriteBlob(image,sizeof(dpx.file.timestamp),(unsigned char *)
dpx.file.timestamp);
(void) strncpy(dpx.file.creator,MagickAuthoritativeURL,
sizeof(dpx.file.creator)-1);
value=GetDPXProperty(image,"dpx:file.creator");
if (value != (const char *) NULL)
(void) strncpy(dpx.file.creator,value,sizeof(dpx.file.creator)-1);
offset+=WriteBlob(image,sizeof(dpx.file.creator),(unsigned char *)
dpx.file.creator);
value=GetDPXProperty(image,"dpx:file.project");
if (value != (const char *) NULL)
(void) strncpy(dpx.file.project,value,sizeof(dpx.file.project)-1);
offset+=WriteBlob(image,sizeof(dpx.file.project),(unsigned char *)
dpx.file.project);
value=GetDPXProperty(image,"dpx:file.copyright");
if (value != (const char *) NULL)
(void) strncpy(dpx.file.copyright,value,sizeof(dpx.file.copyright)-1);
offset+=WriteBlob(image,sizeof(dpx.file.copyright),(unsigned char *)
dpx.file.copyright);
dpx.file.encrypt_key=(~0U);
offset+=WriteBlobLong(image,dpx.file.encrypt_key);
offset+=WriteBlob(image,sizeof(dpx.file.reserve),(unsigned char *)
dpx.file.reserve);
/*
Write image header.
*/
switch (image->orientation)
{
default:
case TopLeftOrientation: dpx.image.orientation=0; break;
case TopRightOrientation: dpx.image.orientation=1; break;
case BottomLeftOrientation: dpx.image.orientation=2; break;
case BottomRightOrientation: dpx.image.orientation=3; break;
case LeftTopOrientation: dpx.image.orientation=4; break;
case RightTopOrientation: dpx.image.orientation=5; break;
case LeftBottomOrientation: dpx.image.orientation=6; break;
case RightBottomOrientation: dpx.image.orientation=7; break;
}
offset+=WriteBlobShort(image,dpx.image.orientation);
dpx.image.number_elements=1;
offset+=WriteBlobShort(image,dpx.image.number_elements);
if ((image->columns != (unsigned int) image->columns) ||
(image->rows != (unsigned int) image->rows))
ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
offset+=WriteBlobLong(image,(unsigned int) image->columns);
offset+=WriteBlobLong(image,(unsigned int) image->rows);
for (i=0; i < 8; i++)
{
dpx.image.image_element[i].data_sign=0U;
offset+=WriteBlobLong(image,dpx.image.image_element[i].data_sign);
dpx.image.image_element[i].low_data=0U;
offset+=WriteBlobLong(image,dpx.image.image_element[i].low_data);
dpx.image.image_element[i].low_quantity=0.0f;
offset+=WriteBlobFloat(image,dpx.image.image_element[i].low_quantity);
dpx.image.image_element[i].high_data=0U;
offset+=WriteBlobLong(image,dpx.image.image_element[i].high_data);
dpx.image.image_element[i].high_quantity=0.0f;
offset+=WriteBlobFloat(image,dpx.image.image_element[i].high_quantity);
dpx.image.image_element[i].descriptor=0;
if (i == 0)
switch (image->colorspace)
{
case Rec601YCbCrColorspace:
case Rec709YCbCrColorspace:
case YCbCrColorspace:
{
dpx.image.image_element[i].descriptor=CbYCr444ComponentType;
if (image->matte != MagickFalse)
dpx.image.image_element[i].descriptor=CbYCrA4444ComponentType;
break;
}
default:
{
dpx.image.image_element[i].descriptor=RGBComponentType;
if (image->matte != MagickFalse)
dpx.image.image_element[i].descriptor=RGBAComponentType;
if ((image_info->type != TrueColorType) &&
(image->matte == MagickFalse) &&
(SetImageGray(image,&image->exception) != MagickFalse))
dpx.image.image_element[i].descriptor=LumaComponentType;
break;
}
}
offset+=WriteBlobByte(image,dpx.image.image_element[i].descriptor);
dpx.image.image_element[i].transfer_characteristic=0;
if (image->colorspace == LogColorspace)
dpx.image.image_element[0].transfer_characteristic=
PrintingDensityColorimetric;
offset+=WriteBlobByte(image,
dpx.image.image_element[i].transfer_characteristic);
dpx.image.image_element[i].colorimetric=0;
offset+=WriteBlobByte(image,dpx.image.image_element[i].colorimetric);
dpx.image.image_element[i].bit_size=0;
if (i == 0)
dpx.image.image_element[i].bit_size=(unsigned char) image->depth;
offset+=WriteBlobByte(image,dpx.image.image_element[i].bit_size);
dpx.image.image_element[i].packing=0;
if ((image->depth == 10) || (image->depth == 12))
dpx.image.image_element[i].packing=1;
offset+=WriteBlobShort(image,dpx.image.image_element[i].packing);
dpx.image.image_element[i].encoding=0;
offset+=WriteBlobShort(image,dpx.image.image_element[i].encoding);
dpx.image.image_element[i].data_offset=0U;
if (i == 0)
dpx.image.image_element[i].data_offset=dpx.file.image_offset;
offset+=WriteBlobLong(image,dpx.image.image_element[i].data_offset);
dpx.image.image_element[i].end_of_line_padding=0U;
offset+=WriteBlobLong(image,dpx.image.image_element[i].end_of_line_padding);
offset+=WriteBlobLong(image,
dpx.image.image_element[i].end_of_image_padding);
offset+=WriteBlob(image,sizeof(dpx.image.image_element[i].description),
(unsigned char *) dpx.image.image_element[i].description);
}
offset+=WriteBlob(image,sizeof(dpx.image.reserve),(unsigned char *)
dpx.image.reserve);
/*
Write orientation header.
*/
if ((image->rows != image->magick_rows) ||
(image->columns != image->magick_columns))
{
/*
These properties are not valid if image size changed.
*/
(void) DeleteImageProperty(image,"dpx:orientation.x_offset");
(void) DeleteImageProperty(image,"dpx:orientation.y_offset");
(void) DeleteImageProperty(image,"dpx:orientation.x_center");
(void) DeleteImageProperty(image,"dpx:orientation.y_center");
(void) DeleteImageProperty(image,"dpx:orientation.x_size");
(void) DeleteImageProperty(image,"dpx:orientation.y_size");
}
dpx.orientation.x_offset=0U;
value=GetDPXProperty(image,"dpx:orientation.x_offset");
if (value != (const char *) NULL)
dpx.orientation.x_offset=(unsigned int) StringToUnsignedLong(value);
offset+=WriteBlobLong(image,dpx.orientation.x_offset);
dpx.orientation.y_offset=0U;
value=GetDPXProperty(image,"dpx:orientation.y_offset");
if (value != (const char *) NULL)
dpx.orientation.y_offset=(unsigned int) StringToUnsignedLong(value);
offset+=WriteBlobLong(image,dpx.orientation.y_offset);
dpx.orientation.x_center=0.0f;
value=GetDPXProperty(image,"dpx:orientation.x_center");
if (value != (const char *) NULL)
dpx.orientation.x_center=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.orientation.x_center);
dpx.orientation.y_center=0.0f;
value=GetDPXProperty(image,"dpx:orientation.y_center");
if (value != (const char *) NULL)
dpx.orientation.y_center=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.orientation.y_center);
dpx.orientation.x_size=0U;
value=GetDPXProperty(image,"dpx:orientation.x_size");
if (value != (const char *) NULL)
dpx.orientation.x_size=(unsigned int) StringToUnsignedLong(value);
offset+=WriteBlobLong(image,dpx.orientation.x_size);
dpx.orientation.y_size=0U;
value=GetDPXProperty(image,"dpx:orientation.y_size");
if (value != (const char *) NULL)
dpx.orientation.y_size=(unsigned int) StringToUnsignedLong(value);
offset+=WriteBlobLong(image,dpx.orientation.y_size);
value=GetDPXProperty(image,"dpx:orientation.filename");
if (value != (const char *) NULL)
(void) strncpy(dpx.orientation.filename,value,
sizeof(dpx.orientation.filename)-1);
offset+=WriteBlob(image,sizeof(dpx.orientation.filename),(unsigned char *)
dpx.orientation.filename);
offset+=WriteBlob(image,sizeof(dpx.orientation.timestamp),(unsigned char *)
dpx.orientation.timestamp);
value=GetDPXProperty(image,"dpx:orientation.device");
if (value != (const char *) NULL)
(void) strncpy(dpx.orientation.device,value,
sizeof(dpx.orientation.device)-1);
offset+=WriteBlob(image,sizeof(dpx.orientation.device),(unsigned char *)
dpx.orientation.device);
value=GetDPXProperty(image,"dpx:orientation.serial");
if (value != (const char *) NULL)
(void) strncpy(dpx.orientation.serial,value,
sizeof(dpx.orientation.serial)-1);
offset+=WriteBlob(image,sizeof(dpx.orientation.serial),(unsigned char *)
dpx.orientation.serial);
for (i=0; i < 4; i++)
dpx.orientation.border[i]=0;
value=GetDPXProperty(image,"dpx:orientation.border");
if (value != (const char *) NULL)
{
flags=ParseGeometry(value,&geometry_info);
if ((flags & SigmaValue) == 0)
geometry_info.sigma=geometry_info.rho;
dpx.orientation.border[0]=(unsigned short) (geometry_info.rho+0.5);
dpx.orientation.border[1]=(unsigned short) (geometry_info.sigma+0.5);
dpx.orientation.border[2]=(unsigned short) (geometry_info.xi+0.5);
dpx.orientation.border[3]=(unsigned short) (geometry_info.psi+0.5);
}
for (i=0; i < 4; i++)
offset+=WriteBlobShort(image,dpx.orientation.border[i]);
for (i=0; i < 2; i++)
dpx.orientation.aspect_ratio[i]=0U;
value=GetDPXProperty(image,"dpx:orientation.aspect_ratio");
if (value != (const char *) NULL)
{
flags=ParseGeometry(value,&geometry_info);
if ((flags & SigmaValue) == 0)
geometry_info.sigma=geometry_info.rho;
dpx.orientation.aspect_ratio[0]=(unsigned int) (geometry_info.rho+0.5);
dpx.orientation.aspect_ratio[1]=(unsigned int) (geometry_info.sigma+0.5);
}
for (i=0; i < 2; i++)
offset+=WriteBlobLong(image,dpx.orientation.aspect_ratio[i]);
offset+=WriteBlob(image,sizeof(dpx.orientation.reserve),(unsigned char *)
dpx.orientation.reserve);
/*
Write film header.
*/
(void) memset(dpx.film.id,0,sizeof(dpx.film.id));
value=GetDPXProperty(image,"dpx:film.id");
if (value != (const char *) NULL)
(void) strncpy(dpx.film.id,value,sizeof(dpx.film.id)-1);
offset+=WriteBlob(image,sizeof(dpx.film.id),(unsigned char *) dpx.film.id);
(void) memset(dpx.film.type,0,sizeof(dpx.film.type));
value=GetDPXProperty(image,"dpx:film.type");
if (value != (const char *) NULL)
(void) strncpy(dpx.film.type,value,sizeof(dpx.film.type)-1);
offset+=WriteBlob(image,sizeof(dpx.film.type),(unsigned char *)
dpx.film.type);
(void) memset(dpx.film.offset,0,sizeof(dpx.film.offset));
value=GetDPXProperty(image,"dpx:film.offset");
if (value != (const char *) NULL)
(void) strncpy(dpx.film.offset,value,sizeof(dpx.film.offset)-1);
offset+=WriteBlob(image,sizeof(dpx.film.offset),(unsigned char *)
dpx.film.offset);
(void) memset(dpx.film.prefix,0,sizeof(dpx.film.prefix));
value=GetDPXProperty(image,"dpx:film.prefix");
if (value != (const char *) NULL)
(void) strncpy(dpx.film.prefix,value,sizeof(dpx.film.prefix)-1);
offset+=WriteBlob(image,sizeof(dpx.film.prefix),(unsigned char *)
dpx.film.prefix);
(void) memset(dpx.film.count,0,sizeof(dpx.film.count));
value=GetDPXProperty(image,"dpx:film.count");
if (value != (const char *) NULL)
(void) strncpy(dpx.film.count,value,sizeof(dpx.film.count)-1);
offset+=WriteBlob(image,sizeof(dpx.film.count),(unsigned char *)
dpx.film.count);
(void) memset(dpx.film.format,0,sizeof(dpx.film.format));
value=GetDPXProperty(image,"dpx:film.format");
if (value != (const char *) NULL)
(void) strncpy(dpx.film.format,value,sizeof(dpx.film.format)-1);
offset+=WriteBlob(image,sizeof(dpx.film.format),(unsigned char *)
dpx.film.format);
dpx.film.frame_position=0U;
value=GetDPXProperty(image,"dpx:film.frame_position");
if (value != (const char *) NULL)
dpx.film.frame_position=(unsigned int) StringToUnsignedLong(value);
offset+=WriteBlobLong(image,dpx.film.frame_position);
dpx.film.sequence_extent=0U;
value=GetDPXProperty(image,"dpx:film.sequence_extent");
if (value != (const char *) NULL)
dpx.film.sequence_extent=(unsigned int) StringToUnsignedLong(value);
offset+=WriteBlobLong(image,dpx.film.sequence_extent);
dpx.film.held_count=0U;
value=GetDPXProperty(image,"dpx:film.held_count");
if (value != (const char *) NULL)
dpx.film.held_count=(unsigned int) StringToUnsignedLong(value);
offset+=WriteBlobLong(image,dpx.film.held_count);
dpx.film.frame_rate=0.0f;
value=GetDPXProperty(image,"dpx:film.frame_rate");
if (value != (const char *) NULL)
dpx.film.frame_rate=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.film.frame_rate);
dpx.film.shutter_angle=0.0f;
value=GetDPXProperty(image,"dpx:film.shutter_angle");
if (value != (const char *) NULL)
dpx.film.shutter_angle=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.film.shutter_angle);
(void) memset(dpx.film.frame_id,0,sizeof(dpx.film.frame_id));
value=GetDPXProperty(image,"dpx:film.frame_id");
if (value != (const char *) NULL)
(void) strncpy(dpx.film.frame_id,value,sizeof(dpx.film.frame_id)-1);
offset+=WriteBlob(image,sizeof(dpx.film.frame_id),(unsigned char *)
dpx.film.frame_id);
value=GetDPXProperty(image,"dpx:film.slate");
if (value != (const char *) NULL)
(void) strncpy(dpx.film.slate,value,sizeof(dpx.film.slate)-1);
offset+=WriteBlob(image,sizeof(dpx.film.slate),(unsigned char *)
dpx.film.slate);
offset+=WriteBlob(image,sizeof(dpx.film.reserve),(unsigned char *)
dpx.film.reserve);
/*
Write television header.
*/
value=GetDPXProperty(image,"dpx:television.time.code");
if (value != (const char *) NULL)
dpx.television.time_code=StringToTimeCode(value);
offset+=WriteBlobLong(image,dpx.television.time_code);
value=GetDPXProperty(image,"dpx:television.user.bits");
if (value != (const char *) NULL)
dpx.television.user_bits=StringToTimeCode(value);
offset+=WriteBlobLong(image,dpx.television.user_bits);
value=GetDPXProperty(image,"dpx:television.interlace");
if (value != (const char *) NULL)
dpx.television.interlace=(unsigned char) StringToLong(value);
offset+=WriteBlobByte(image,dpx.television.interlace);
value=GetDPXProperty(image,"dpx:television.field_number");
if (value != (const char *) NULL)
dpx.television.field_number=(unsigned char) StringToLong(value);
offset+=WriteBlobByte(image,dpx.television.field_number);
dpx.television.video_signal=0;
value=GetDPXProperty(image,"dpx:television.video_signal");
if (value != (const char *) NULL)
dpx.television.video_signal=(unsigned char) StringToLong(value);
offset+=WriteBlobByte(image,dpx.television.video_signal);
dpx.television.padding=0;
value=GetDPXProperty(image,"dpx:television.padding");
if (value != (const char *) NULL)
dpx.television.padding=(unsigned char) StringToLong(value);
offset+=WriteBlobByte(image,dpx.television.padding);
dpx.television.horizontal_sample_rate=0.0f;
value=GetDPXProperty(image,"dpx:television.horizontal_sample_rate");
if (value != (const char *) NULL)
dpx.television.horizontal_sample_rate=StringToDouble(value,
(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.horizontal_sample_rate);
dpx.television.vertical_sample_rate=0.0f;
value=GetDPXProperty(image,"dpx:television.vertical_sample_rate");
if (value != (const char *) NULL)
dpx.television.vertical_sample_rate=StringToDouble(value,
(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.vertical_sample_rate);
dpx.television.frame_rate=0.0f;
value=GetDPXProperty(image,"dpx:television.frame_rate");
if (value != (const char *) NULL)
dpx.television.frame_rate=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.frame_rate);
dpx.television.time_offset=0.0f;
value=GetDPXProperty(image,"dpx:television.time_offset");
if (value != (const char *) NULL)
dpx.television.time_offset=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.time_offset);
dpx.television.gamma=0.0f;
value=GetDPXProperty(image,"dpx:television.gamma");
if (value != (const char *) NULL)
dpx.television.gamma=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.gamma);
dpx.television.black_level=0.0f;
value=GetDPXProperty(image,"dpx:television.black_level");
if (value != (const char *) NULL)
dpx.television.black_level=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.black_level);
dpx.television.black_gain=0.0f;
value=GetDPXProperty(image,"dpx:television.black_gain");
if (value != (const char *) NULL)
dpx.television.black_gain=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.black_gain);
dpx.television.break_point=0.0f;
value=GetDPXProperty(image,"dpx:television.break_point");
if (value != (const char *) NULL)
dpx.television.break_point=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.break_point);
dpx.television.white_level=0.0f;
value=GetDPXProperty(image,"dpx:television.white_level");
if (value != (const char *) NULL)
dpx.television.white_level=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.white_level);
dpx.television.integration_times=0.0f;
value=GetDPXProperty(image,"dpx:television.integration_times");
if (value != (const char *) NULL)
dpx.television.integration_times=StringToDouble(value,(char **) NULL);
offset+=WriteBlobFloat(image,dpx.television.integration_times);
offset+=WriteBlob(image,sizeof(dpx.television.reserve),(unsigned char *)
dpx.television.reserve);
/*
Write user header.
*/
value=GetDPXProperty(image,"dpx:user.id");
if (value != (const char *) NULL)
(void) strncpy(dpx.user.id,value,sizeof(dpx.user.id)-1);
offset+=WriteBlob(image,sizeof(dpx.user.id),(unsigned char *) dpx.user.id);
if (profile != (StringInfo *) NULL)
offset+=WriteBlob(image,GetStringInfoLength(profile),
GetStringInfoDatum(profile));
while (offset < (MagickOffsetType) dpx.image.image_element[0].data_offset)
{
count=WriteBlobByte(image,0x00);
if (count != 1)
{
ThrowFileException(&image->exception,FileOpenError,"UnableToWriteFile",
image->filename);
break;
}
offset+=count;
}
/*
Convert pixel packets to DPX raster image.
*/
quantum_info=AcquireQuantumInfo(image_info,image);
SetQuantumQuantum(quantum_info,32);
SetQuantumPack(quantum_info,dpx.image.image_element[0].packing == 0 ?
MagickTrue : MagickFalse);
quantum_type=RGBQuantum;
if (image->matte != MagickFalse)
quantum_type=RGBAQuantum;
if (IsYCbCrCompatibleColorspace(image->colorspace) != MagickFalse)
{
quantum_type=CbYCrQuantum;
if (image->matte != MagickFalse)
quantum_type=CbYCrAQuantum;
if ((horizontal_factor == 2) || (vertical_factor == 2))
quantum_type=CbYCrYQuantum;
}
samples_per_pixel=1;
quantum_type=GrayQuantum;
component_type=dpx.image.image_element[0].descriptor;
switch (component_type)
{
case CbYCrY422ComponentType:
{
samples_per_pixel=2;
quantum_type=CbYCrYQuantum;
break;
}
case CbYACrYA4224ComponentType:
case CbYCr444ComponentType:
{
samples_per_pixel=3;
quantum_type=CbYCrQuantum;
break;
}
case RGBComponentType:
{
samples_per_pixel=3;
quantum_type=RGBQuantum;
break;
}
case ABGRComponentType:
case RGBAComponentType:
{
samples_per_pixel=4;
quantum_type=RGBAQuantum;
break;
}
default:
break;
}
extent=GetBytesPerRow(image->columns,samples_per_pixel,image->depth,
dpx.image.image_element[0].packing == 0 ? MagickFalse : MagickTrue);
pixels=GetQuantumPixels(quantum_info);
for (y=0; y < (ssize_t) image->rows; y++)
{
size_t
length;
p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
length=ExportQuantumPixels(image,(const CacheView *) NULL,quantum_info,
quantum_type,pixels,&image->exception);
if (length == 0)
break;
count=WriteBlob(image,extent,pixels);
if (count != (ssize_t) extent)
break;
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
quantum_info=DestroyQuantumInfo(quantum_info);
if (y < (ssize_t) image->rows)
ThrowWriterException(CorruptImageError,"UnableToWriteImageData");
(void) CloseBlob(image);
return(status);
}
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