/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X X TTTTT RRRR N N %
% X X T R R NN N %
% X T RRRR N N N %
% X X T R R N NN %
% X X T R R N N %
% %
% %
% ImageMagickObject BLOB Interface. %
% %
% Software Design %
% William Radcliffe %
% May 2001 %
% %
% %
% Copyright 1999-2016 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 %
% %
% http://www.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. %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% This coder is a kind of backdoor used by the COM object that allows it to %
% pass blobs back and forth using the coder interface. It simply encodes and %
% decodes the filename as a comma delimited string and extracts the info it %
% needs. The five methods of passing images are: %
% %
% FILE - same thing as filename so it should be a NOP %
% IMAGE - passes an image and image info structure %
% BLOB - passes binary blob containining the image %
% STREAM - passes pointers to stream hooks in and does the hooking %
% ARRAY - passes a pointer to a Win32 smart array and streams to it %
% %
% Of all of these, the only one getting any real use at the moment is the %
% ARRAY handler. It is the primary way that images are shuttled back and %
% forth as blobs via COM since this is what VB and VBSCRIPT use internally %
% for this purpose. %
%
%
*/
/*
Include declarations.
*/
#include "magick/studio.h"
#include "magick/blob.h"
#include "magick/blob-private.h"
#include "magick/constitute.h"
#include "magick/delegate.h"
#include "magick/exception.h"
#include "magick/exception-private.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/string_.h"
#if defined(_VISUALC_)
#define WIN32_LEAN_AND_MEAN
#define VC_EXTRALEAN
#include <windows.h>
#include <ole2.h>
/*
Forward declarations.
*/
static MagickBooleanType
WriteXTRNImage(const ImageInfo *,Image *);
#endif
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d X T R N I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadXTRNImage() reads a XTRN 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 ReadXTRNImage method is:
%
% Image *ReadXTRNImage(const ImageInfo *image_info,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: Specifies a pointer to an ImageInfo structure.
%
% o exception: return any errors or warnings in this structure.
%
*/
#if defined(_VISUALC_)
static Image *ReadXTRNImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
Image
*image;
ImageInfo
*clone_info;
void
*param1,
*param2,
*param3;
param1 = param2 = param3 = (void *) NULL;
image = (Image *) NULL;
clone_info=CloneImageInfo(image_info);
if (clone_info->filename == NULL)
{
clone_info=DestroyImageInfo(clone_info);
ThrowReaderException(FileOpenWarning,"No filename specified");
}
if (LocaleCompare(image_info->magick,"XTRNFILE") == 0)
{
image=ReadImage(clone_info,exception);
CatchException(exception);
}
else if (LocaleCompare(image_info->magick,"XTRNIMAGE") == 0)
{
Image
**image_ptr;
#ifdef ALL_IMAGEINFO
ImageInfo
**image_info_ptr;
#endif
(void) sscanf(clone_info->filename,"%lx,%lx",¶m1,¶m2);
image_ptr=(Image **) param2;
if (*image_ptr != (Image *) NULL)
image=CloneImage(*image_ptr,0,0,MagickFalse,&(*image_ptr)->exception);
#ifdef ALL_IMAGEINFO
image_info_ptr=(ImageInfo **) param1;
if (*image_info_ptr != (ImageInfo *) NULL)
image_info=*image_info_ptr;
#endif
}
else if (LocaleCompare(image_info->magick,"XTRNBLOB") == 0)
{
char
**blob_data;
size_t
*blob_length;
char
filename[MaxTextExtent];
(void) sscanf(clone_info->filename,"%lx,%lx,%2048s",¶m1,¶m2,
filename);
blob_data=(char **) param1;
blob_length=(size_t *) param2;
image=BlobToImage(clone_info,*blob_data,*blob_length,exception);
CatchException(exception);
}
else if (LocaleCompare(image_info->magick,"XTRNARRAY") == 0)
{
char
*blob_data,
filename[MaxTextExtent];
HRESULT
hr;
long
lBoundl,
lBoundu;
SAFEARRAY
*pSafeArray;
size_t
blob_length;
*filename='\0';
(void) sscanf(clone_info->filename,"%lx,%2048s",¶m1,filename);
hr=S_OK;
pSafeArray=(SAFEARRAY *) param1;
if (pSafeArray)
{
hr = SafeArrayGetLBound(pSafeArray, 1, &lBoundl);
if (SUCCEEDED(hr))
{
hr = SafeArrayGetUBound(pSafeArray, 1, &lBoundu);
if (SUCCEEDED(hr))
{
blob_length = lBoundu - lBoundl + 1;
hr = SafeArrayAccessData(pSafeArray,(void**) &blob_data);
if(SUCCEEDED(hr))
{
*clone_info->filename='\0';
*clone_info->magick='\0';
if (*filename != '\0')
(void) CopyMagickString(clone_info->filename,filename,
MaxTextExtent);
image=BlobToImage(clone_info,blob_data,blob_length,
exception);
hr=SafeArrayUnaccessData(pSafeArray);
CatchException(exception);
}
}
}
}
}
clone_info=DestroyImageInfo(clone_info);
return(image);
}
#endif
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r X T R N I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RegisterXTRNImage() adds attributes for the XTRN image format to
% the list of supported formats. The attributes include the image format
% tag, a method to read and/or write the format, whether the format
% supports the saving of more than one frame to the same file or blob,
% whether the format supports native in-memory I/O, and a brief
% description of the format.
%
% The format of the RegisterXTRNImage method is:
%
% size_t RegisterXTRNImage(void)
%
*/
ModuleExport size_t RegisterXTRNImage(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("XTRNFILE");
#if defined(_VISUALC_)
entry->decoder=ReadXTRNImage;
entry->encoder=WriteXTRNImage;
#endif
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->description=ConstantString("External transfer of a file");
entry->module=ConstantString("XTRN");
RegisterMagickInfo(entry);
entry=SetMagickInfo("XTRNIMAGE");
#if defined(_VISUALC_)
entry->decoder=ReadXTRNImage;
entry->encoder=WriteXTRNImage;
#endif
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->description=ConstantString("External transfer of a image in memory");
entry->module=ConstantString("XTRN");
RegisterMagickInfo(entry);
entry=SetMagickInfo("XTRNBLOB");
#if defined(_VISUALC_)
entry->decoder=ReadXTRNImage;
entry->encoder=WriteXTRNImage;
#endif
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->description=ConstantString("IExternal transfer of a blob in memory");
entry->module=ConstantString("XTRN");
RegisterMagickInfo(entry);
entry=SetMagickInfo("XTRNARRAY");
#if defined(_VISUALC_)
entry->decoder=ReadXTRNImage;
entry->encoder=WriteXTRNImage;
#endif
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->description=ConstantString(
"External transfer via a smart array interface");
entry->module=ConstantString("XTRN");
RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r X T R N I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnregisterXTRNImage() removes format registrations made by the
% XTRN module from the list of supported formats.
%
% The format of the UnregisterXTRNImage method is:
%
% UnregisterXTRNImage(void)
%
*/
ModuleExport void UnregisterXTRNImage(void)
{
UnregisterMagickInfo("XTRNFILE");
UnregisterMagickInfo("XTRNIMAGE");
UnregisterMagickInfo("XTRNBLOB");
UnregisterMagickInfo("XTRNARRAY");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e X T R N I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WriteXTRNImage() writes an image in the XTRN encoded image format.
% We use GIF because it is the only format that is compressed without
% requiring additional optional delegates (TIFF, ZIP, etc).
%
% The format of the WriteXTRNImage method is:
%
% MagickBooleanType WriteXTRNImage(const ImageInfo *image_info,
% Image *image)
%
% A description of each parameter follows.
%
% o image_info: Specifies a pointer to an ImageInfo structure.
%
% o image: A pointer to a Image structure.
%
*/
#if defined(_VISUALC_)
static size_t SafeArrayFifo(const Image *image,const void *data,
const size_t length)
{
SAFEARRAYBOUND NewArrayBounds[1]; /* 1 Dimension */
size_t tlen=length;
SAFEARRAY *pSafeArray = (SAFEARRAY *)image->client_data;
if (pSafeArray != NULL)
{
long lBoundl, lBoundu, lCount;
HRESULT hr = S_OK;
/* First see how big the buffer currently is */
hr = SafeArrayGetLBound(pSafeArray, 1, &lBoundl);
if (FAILED(hr))
return MagickFalse;
hr = SafeArrayGetUBound(pSafeArray, 1, &lBoundu);
if (FAILED(hr))
return MagickFalse;
lCount = lBoundu - lBoundl + 1;
if (length>0)
{
unsigned char *pReturnBuffer = NULL;
NewArrayBounds[0].lLbound = 0; /* Start-Index 0 */
NewArrayBounds[0].cElements = (unsigned long) (length+lCount); /* # Elemente */
hr = SafeArrayRedim(pSafeArray, NewArrayBounds);
if (FAILED(hr))
return 0;
hr = SafeArrayAccessData(pSafeArray, (void**)&pReturnBuffer);
if( FAILED(hr) )
return 0;
(void) memcpy(pReturnBuffer+lCount,(unsigned char *) data,length);
hr=SafeArrayUnaccessData(pSafeArray);
if(FAILED(hr))
return 0;
}
else
{
/* Adjust the length of the buffer to fit */
}
}
return(tlen);
}
static MagickBooleanType WriteXTRNImage(const ImageInfo *image_info,
Image *image)
{
Image *
p;
ImageInfo
*clone_info;
int
scene;
MagickBooleanType
status;
void
*param1,
*param2,
*param3;
param1 = param2 = param3 = (void *) NULL;
status=MagickTrue;
if (LocaleCompare(image_info->magick,"XTRNFILE") == 0)
{
clone_info=CloneImageInfo(image_info);
*clone_info->magick='\0';
status=WriteImage(clone_info,image);
if (status == MagickFalse)
CatchImageException(image);
clone_info=DestroyImageInfo(clone_info);
}
else if (LocaleCompare(image_info->magick,"XTRNIMAGE") == 0)
{
Image
**image_ptr;
ImageInfo
**image_info_ptr;
clone_info=CloneImageInfo(image_info);
if (clone_info->filename[0])
{
(void) sscanf(clone_info->filename,"%lx,%lx",¶m1,¶m2);
image_info_ptr=(ImageInfo **) param1;
image_ptr=(Image **) param2;
if ((image_info_ptr != (ImageInfo **) NULL) &&
(image_ptr != (Image **) NULL))
{
*image_ptr=CloneImage(image,0,0,MagickFalse,&(image->exception));
*image_info_ptr=clone_info;
}
}
}
else if (LocaleCompare(image_info->magick,"XTRNBLOB") == 0)
{
char
**blob_data;
ExceptionInfo
*exception;
size_t
*blob_length;
char
filename[MaxTextExtent];
clone_info=CloneImageInfo(image_info);
if (clone_info->filename[0])
{
(void) sscanf(clone_info->filename,"%lx,%lx,%2048s",
¶m1,¶m2,filename);
blob_data=(char **) param1;
blob_length=(size_t *) param2;
scene = 0;
(void) CopyMagickString(clone_info->filename,filename,MaxTextExtent);
for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
{
(void) CopyMagickString(p->filename,filename,MaxTextExtent);
p->scene=scene++;
}
SetImageInfo(clone_info,1,&image->exception);
(void) CopyMagickString(image->magick,clone_info->magick,
MaxTextExtent);
exception=AcquireExceptionInfo();
if (*blob_length == 0)
*blob_length=8192;
*blob_data=(char *) ImageToBlob(clone_info,image,blob_length,
exception);
exception=DestroyExceptionInfo(exception);
if (*blob_data == NULL)
status=MagickFalse;
if (status == MagickFalse)
CatchImageException(image);
}
clone_info=DestroyImageInfo(clone_info);
}
else if (LocaleCompare(image_info->magick,"XTRNARRAY") == 0)
{
char
filename[MaxTextExtent];
size_t
blob_length;
unsigned char
*blob_data;
clone_info=CloneImageInfo(image_info);
if (*clone_info->filename != '\0')
{
(void) sscanf(clone_info->filename,"%lx,%2048s",¶m1,filename);
image->client_data=param1;
scene=0;
(void) CopyMagickString(clone_info->filename,filename,MaxTextExtent);
for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
{
(void) CopyMagickString(p->filename,filename,MaxTextExtent);
p->scene=scene++;
}
SetImageInfo(clone_info,1,&image->exception);
(void) CopyMagickString(image->magick,clone_info->magick,
MaxTextExtent);
blob_data=ImageToBlob(clone_info,image,&blob_length,
&image->exception);
if (blob_data == (unsigned char *) NULL)
status=MagickFalse;
else
SafeArrayFifo(image,blob_data,blob_length);
if (status == MagickFalse)
CatchImageException(image);
}
clone_info=DestroyImageInfo(clone_info);
}
return(MagickTrue);
}
#endif