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DEFINITIONS
This source file includes following definitions.
- CropImageToHBITMAP
- NTIsMagickConflict
- NTLoadTypeLists
- ImageToHBITMAP
/*
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% N N TTTTT %
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% Windows NT Feature Methods for MagickCore %
% %
% Software Design %
% John Cristy %
% December 1996 %
% %
% %
% Copyright 1999-2011 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. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/
/*
Include declarations.
*/
#include "magick/studio.h"
#if defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__CYGWIN__)
#define WIN32_LEAN_AND_MEAN
#define VC_EXTRALEAN
#include <windows.h>
#include "magick/cache.h"
#include "magick/colorspace.h"
#include "magick/draw.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/image-private.h"
#include "magick/memory_.h"
#include "magick/monitor.h"
#include "magick/monitor-private.h"
#include "magick/quantum.h"
#include "magick/string_.h"
#include "magick/token.h"
#include "magick/splay-tree.h"
#include "magick/utility.h"
#include "magick/nt-feature.h"
/*
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% C r o p I m a g e T o H B i t m a p %
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% CropImageToHBITMAP() extracts a specified region of the image and returns
% it as a Windows HBITMAP. While the same functionality can be accomplished by
% invoking CropImage() followed by ImageToHBITMAP(), this method is more
% efficient since it copies pixels directly to the HBITMAP.
%
% The format of the CropImageToHBITMAP method is:
%
% HBITMAP CropImageToHBITMAP(Image* image,const RectangleInfo *geometry,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image: the image.
%
% o geometry: Define the region of the image to crop with members
% x, y, width, and height.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport void *CropImageToHBITMAP(Image *image,
const RectangleInfo *geometry,ExceptionInfo *exception)
{
#define CropImageTag "Crop/Image"
BITMAP
bitmap;
HBITMAP
bitmapH;
HANDLE
bitmap_bitsH;
MagickBooleanType
proceed;
RectangleInfo
page;
register const PixelPacket
*p;
register RGBQUAD
*q;
RGBQUAD
*bitmap_bits;
ssize_t
y;
/*
Check crop geometry.
*/
assert(image != (const Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(geometry != (const RectangleInfo *) NULL);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
if (((geometry->x+(ssize_t) geometry->width) < 0) ||
((geometry->y+(ssize_t) geometry->height) < 0) ||
(geometry->x >= (ssize_t) image->columns) ||
(geometry->y >= (ssize_t) image->rows))
ThrowImageException(OptionError,"GeometryDoesNotContainImage");
page=(*geometry);
if ((page.x+(ssize_t) page.width) > (ssize_t) image->columns)
page.width=image->columns-page.x;
if ((page.y+(ssize_t) page.height) > (ssize_t) image->rows)
page.height=image->rows-page.y;
if (page.x < 0)
{
page.width+=page.x;
page.x=0;
}
if (page.y < 0)
{
page.height+=page.y;
page.y=0;
}
if ((page.width == 0) || (page.height == 0))
ThrowImageException(OptionError,"GeometryDimensionsAreZero");
/*
Initialize crop image attributes.
*/
bitmap.bmType = 0;
bitmap.bmWidth = (LONG) page.width;
bitmap.bmHeight = (LONG) page.height;
bitmap.bmWidthBytes = bitmap.bmWidth * 4;
bitmap.bmPlanes = 1;
bitmap.bmBitsPixel = 32;
bitmap.bmBits = NULL;
bitmap_bitsH=(HANDLE) GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE,page.width*
page.height*bitmap.bmBitsPixel);
if (bitmap_bitsH == NULL)
return(NULL);
bitmap_bits=(RGBQUAD *) GlobalLock((HGLOBAL) bitmap_bitsH);
if ( bitmap.bmBits == NULL )
bitmap.bmBits = bitmap_bits;
if (image->colorspace != RGBColorspace)
TransformImageColorspace(image,RGBColorspace);
/*
Extract crop image.
*/
q=bitmap_bits;
for (y=0; y < (ssize_t) page.height; y++)
{
p=GetVirtualPixels(image,page.x,page.y+y,page.width,1,exception);
if (p == (const PixelPacket *) NULL)
break;
#if MAGICKCORE_QUANTUM_DEPTH == 8
/* Form of PixelPacket is identical to RGBQUAD when MAGICKCORE_QUANTUM_DEPTH==8 */
CopyMagickMemory((void*)q,(const void*)p,page.width*sizeof(PixelPacket));
q += page.width;
#else /* 16 or 32 bit Quantum */
{
ssize_t
x;
/* Transfer pixels, scaling to Quantum */
for( x=(ssize_t) page.width ; x> 0 ; x-- )
{
q->rgbRed = ScaleQuantumToChar(GetRedPixelComponent(p));
q->rgbGreen = ScaleQuantumToChar(GetGreenPixelComponent(p));
q->rgbBlue = ScaleQuantumToChar(GetBluePixelComponent(p));
q->rgbReserved = 0;
++q;
++p;
}
}
#endif
proceed=SetImageProgress(image,CropImageTag,y,page.height);
if (proceed == MagickFalse)
break;
}
if (y < (ssize_t) page.height)
{
GlobalUnlock((HGLOBAL) bitmap_bitsH);
GlobalFree((HGLOBAL) bitmap_bitsH);
return((void *) NULL);
}
bitmap.bmBits=bitmap_bits;
bitmapH=CreateBitmapIndirect(&bitmap);
GlobalUnlock((HGLOBAL) bitmap_bitsH);
GlobalFree((HGLOBAL) bitmap_bitsH);
return((void *) bitmapH);
}
/*
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% I s M a g i c k C o n f l i c t %
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%
% IsMagickConflict() returns true if the image format conflicts with a logical
% drive (.e.g. X:).
%
% The format of the IsMagickConflict method is:
%
% MagickBooleanType IsMagickConflict(const char *magick)
%
% A description of each parameter follows:
%
% o magick: Specifies the image format.
%
*/
MagickExport MagickBooleanType NTIsMagickConflict(const char *magick)
{
MagickBooleanType
status;
assert(magick != (char *) NULL);
if (strlen(magick) > 1)
return(MagickFalse);
status=(GetLogicalDrives() & (1 << ((toupper((int) (*magick)))-'A'))) != 0 ?
MagickTrue : MagickFalse;
return(status);
}
/*
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+ N T G e t T y pe L i s t %
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% NTLoadTypeLists() loads a Windows TrueType fonts.
%
% The format of the NTLoadTypeLists method is:
%
% MagickBooleanType NTLoadTypeLists(SplayTreeInfo *type_list)
%
% A description of each parameter follows:
%
% o type_list: A linked list of fonts.
%
*/
MagickExport MagickBooleanType NTLoadTypeLists(SplayTreeInfo *type_list,
ExceptionInfo *exception)
{
HKEY
reg_key = (HKEY) INVALID_HANDLE_VALUE;
LONG
res;
int
list_entries = 0;
char
buffer[MaxTextExtent],
system_root[MaxTextExtent],
font_root[MaxTextExtent];
DWORD
type,
system_root_length;
MagickBooleanType
status;
/*
Try to find the right Windows*\CurrentVersion key, the SystemRoot and
then the Fonts key
*/
res = RegOpenKeyExA (HKEY_LOCAL_MACHINE,
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 0, KEY_READ, ®_key);
if (res == ERROR_SUCCESS) {
system_root_length=sizeof(system_root)-1;
res = RegQueryValueExA(reg_key,"SystemRoot",NULL, &type,
(BYTE*) system_root, &system_root_length);
}
if (res != ERROR_SUCCESS) {
res = RegOpenKeyExA (HKEY_LOCAL_MACHINE,
"SOFTWARE\\Microsoft\\Windows\\CurrentVersion", 0, KEY_READ, ®_key);
if (res == ERROR_SUCCESS) {
system_root_length=sizeof(system_root)-1;
res = RegQueryValueExA(reg_key,"SystemRoot",NULL, &type,
(BYTE*)system_root, &system_root_length);
}
}
if (res == ERROR_SUCCESS)
res = RegOpenKeyExA (reg_key, "Fonts",0, KEY_READ, ®_key);
if (res != ERROR_SUCCESS)
return(MagickFalse);
*font_root='\0';
(void) CopyMagickString(buffer,system_root,MaxTextExtent);
(void) ConcatenateMagickString(buffer,"\\fonts\\arial.ttf",MaxTextExtent);
if (IsPathAccessible(buffer) != MagickFalse)
{
(void) CopyMagickString(font_root,system_root,MaxTextExtent);
(void) ConcatenateMagickString(font_root,"\\fonts\\",MaxTextExtent);
}
else
{
(void) CopyMagickString(font_root,system_root,MaxTextExtent);
(void) ConcatenateMagickString(font_root,"\\",MaxTextExtent);
}
{
TypeInfo
*type_info;
DWORD
registry_index = 0,
type,
value_data_size,
value_name_length;
char
value_data[MaxTextExtent],
value_name[MaxTextExtent];
res = ERROR_SUCCESS;
while (res != ERROR_NO_MORE_ITEMS)
{
char
*family_extent,
token[MaxTextExtent],
*pos,
*q;
value_name_length = sizeof(value_name) - 1;
value_data_size = sizeof(value_data) - 1;
res = RegEnumValueA ( reg_key, registry_index, value_name,
&value_name_length, 0, &type, (BYTE*)value_data, &value_data_size);
registry_index++;
if (res != ERROR_SUCCESS)
continue;
if ( (pos = strstr(value_name, " (TrueType)")) == (char*) NULL )
continue;
*pos='\0'; /* Remove (TrueType) from string */
type_info=(TypeInfo *) AcquireMagickMemory(sizeof(*type_info));
if (type_info == (TypeInfo *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
(void) ResetMagickMemory(type_info,0,sizeof(TypeInfo));
type_info->path=ConstantString("Windows Fonts");
type_info->signature=MagickSignature;
/* Name */
(void) CopyMagickString(buffer,value_name,MaxTextExtent);
for(pos = buffer; *pos != 0 ; pos++)
if (*pos == ' ')
*pos = '-';
type_info->name=ConstantString(buffer);
/* Fullname */
type_info->description=ConstantString(value_name);
/* Format */
type_info->format=ConstantString("truetype");
/* Glyphs */
if (strchr(value_data,'\\') != (char *) NULL)
(void) CopyMagickString(buffer,value_data,MaxTextExtent);
else
{
(void) CopyMagickString(buffer,font_root,MaxTextExtent);
(void) ConcatenateMagickString(buffer,value_data,MaxTextExtent);
}
LocaleLower(buffer);
type_info->glyphs=ConstantString(buffer);
type_info->stretch=NormalStretch;
type_info->style=NormalStyle;
type_info->weight=400;
/* Some fonts are known to require special encodings */
if ( (LocaleCompare(type_info->name, "Symbol") == 0 ) ||
(LocaleCompare(type_info->name, "Wingdings") == 0 ) ||
(LocaleCompare(type_info->name, "Wingdings-2") == 0 ) ||
(LocaleCompare(type_info->name, "Wingdings-3") == 0 ) )
type_info->encoding=ConstantString("AppleRoman");
family_extent=value_name;
for (q=value_name; *q != '\0'; )
{
GetMagickToken(q,(const char **) &q,token);
if (*token == '\0')
break;
if (LocaleCompare(token,"Italic") == 0)
{
type_info->style=ItalicStyle;
}
else if (LocaleCompare(token,"Oblique") == 0)
{
type_info->style=ObliqueStyle;
}
else if (LocaleCompare(token,"Bold") == 0)
{
type_info->weight=700;
}
else if (LocaleCompare(token,"Thin") == 0)
{
type_info->weight=100;
}
else if ( (LocaleCompare(token,"ExtraLight") == 0) ||
(LocaleCompare(token,"UltraLight") == 0) )
{
type_info->weight=200;
}
else if (LocaleCompare(token,"Light") == 0)
{
type_info->weight=300;
}
else if ( (LocaleCompare(token,"Normal") == 0) ||
(LocaleCompare(token,"Regular") == 0) )
{
type_info->weight=400;
}
else if (LocaleCompare(token,"Medium") == 0)
{
type_info->weight=500;
}
else if ( (LocaleCompare(token,"SemiBold") == 0) ||
(LocaleCompare(token,"DemiBold") == 0) )
{
type_info->weight=600;
}
else if ( (LocaleCompare(token,"ExtraBold") == 0) ||
(LocaleCompare(token,"UltraBold") == 0) )
{
type_info->weight=800;
}
else if ( (LocaleCompare(token,"Heavy") == 0) ||
(LocaleCompare(token,"Black") == 0) )
{
type_info->weight=900;
}
else if (LocaleCompare(token,"Condensed") == 0)
{
type_info->stretch = CondensedStretch;
}
else if (LocaleCompare(token,"Expanded") == 0)
{
type_info->stretch = ExpandedStretch;
}
else if (LocaleCompare(token,"ExtraCondensed") == 0)
{
type_info->stretch = ExtraCondensedStretch;
}
else if (LocaleCompare(token,"ExtraExpanded") == 0)
{
type_info->stretch = ExtraExpandedStretch;
}
else if (LocaleCompare(token,"SemiCondensed") == 0)
{
type_info->stretch = SemiCondensedStretch;
}
else if (LocaleCompare(token,"SemiExpanded") == 0)
{
type_info->stretch = SemiExpandedStretch;
}
else if (LocaleCompare(token,"UltraCondensed") == 0)
{
type_info->stretch = UltraCondensedStretch;
}
else if (LocaleCompare(token,"UltraExpanded") == 0)
{
type_info->stretch = UltraExpandedStretch;
}
else
{
family_extent=q;
}
}
(void) CopyMagickString(buffer,value_name,family_extent-value_name+1);
StripString(buffer);
type_info->family=ConstantString(buffer);
list_entries++;
status=AddValueToSplayTree(type_list,ConstantString(type_info->name),
type_info);
if (status == MagickFalse)
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",type_info->name);
}
}
RegCloseKey ( reg_key );
return(MagickTrue);
}
/*
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% I m a g e T o H B i t m a p %
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% ImageToHBITMAP() creates a Windows HBITMAP from an image.
%
% The format of the ImageToHBITMAP method is:
%
% HBITMAP ImageToHBITMAP(Image *image)
%
% A description of each parameter follows:
%
% o image: the image to convert.
%
*/
MagickExport void *ImageToHBITMAP(Image *image)
{
BITMAP
bitmap;
ExceptionInfo
*exception;
HANDLE
bitmap_bitsH;
HBITMAP
bitmapH;
register ssize_t
x;
register const PixelPacket
*p;
register RGBQUAD
*q;
RGBQUAD
*bitmap_bits;
size_t
length;
ssize_t
y;
(void) ResetMagickMemory(&bitmap,0,sizeof(bitmap));
bitmap.bmType=0;
bitmap.bmWidth=(LONG) image->columns;
bitmap.bmHeight=(LONG) image->rows;
bitmap.bmWidthBytes=4*bitmap.bmWidth;
bitmap.bmPlanes=1;
bitmap.bmBitsPixel=32;
bitmap.bmBits=NULL;
length=bitmap.bmWidthBytes*bitmap.bmHeight;
bitmap_bitsH=(HANDLE) GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE,length);
if (bitmap_bitsH == NULL)
{
char
*message;
message=GetExceptionMessage(errno);
(void) ThrowMagickException(&image->exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",message);
message=DestroyString(message);
return(NULL);
}
bitmap_bits=(RGBQUAD *) GlobalLock((HGLOBAL) bitmap_bitsH);
q=bitmap_bits;
if (bitmap.bmBits == NULL)
bitmap.bmBits=bitmap_bits;
(void) TransformImageColorspace(image,RGBColorspace);
exception=(&image->exception);
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
if (p == (const PixelPacket *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
q->rgbRed=ScaleQuantumToChar(GetRedPixelComponent(p));
q->rgbGreen=ScaleQuantumToChar(GetGreenPixelComponent(p));
q->rgbBlue=ScaleQuantumToChar(GetBluePixelComponent(p));
q->rgbReserved=0;
p++;
q++;
}
}
bitmap.bmBits=bitmap_bits;
bitmapH=CreateBitmapIndirect(&bitmap);
if (bitmapH == NULL)
{
char
*message;
message=GetExceptionMessage(errno);
(void) ThrowMagickException(&image->exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",message);
message=DestroyString(message);
}
GlobalUnlock((HGLOBAL) bitmap_bitsH);
GlobalFree((HGLOBAL) bitmap_bitsH);
return((void *) bitmapH);
}
#endif