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#include <Xw_Extension.h>
/*
// GG PRO4521 05/08/96
// Capture an image across all the window memory plans.
// GG PRO6633 21/08/97
// Avoid crash when image size is NULL.
// GG IMP060200
// Capture an image from any pixmap.
*/
#ifdef HAVE_CONFIG_H
# include <oce-config.h>
#endif
#ifdef HAVE_X11_EXTENSIONS_READDISPLAY_H
#include <X11/extensions/readdisplay.h>
#endif
#ifdef HAVE_X11_EXTENSIONS_TRANSOLV_H
#include <X11/extensions/transovl.h>
#endif
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_GET_IMAGE
#endif
/*
XW_EXT_IMAGEDATA* Xw_get_image (awindow,aimageinfo,xc,yc,width,height):
XW_EXT_WINDOW *awindow
XW_USERDATA *aimageinfo Image Informations Address
int xc,yc Image center location in pixels
int width,height Image size in pixels
Get an image from the window at the required Center location
NOTE than current Window position and size are taken.
returns The image descriptor address if successful
returns NULL if BadAllocation or Image is outside of the window
XW_EXT_IMAGEDATA* Xw_get_image_from_pixmap (awindow,aimageinfo,pixmap,xc,yc,width,height):
XW_EXT_WINDOW *awindow
XW_USERDATA *aimageinfo Image Informations Address
Aspect_Handle pixmap,
int xc,yc Image center location in pixels
int width,height Image size in pixels
Get an image from any pixmap at the required Center location and size
returns The image descriptor address if successful
returns NULL if BadAllocation or Image is outside of the pixmap
*/
#ifdef XW_PROTOTYPE
void* Xw_get_image (void* awindow, void *aimageinfo,
int xc,int yc,int width,int height)
#else
void* Xw_get_image (awindow,aimageinfo,xc,yc,width,height)
void *awindow;
void *aimageinfo ;
int xc,yc ;
int width,height ;
#endif // XW_PROTOTYPE
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow;
XW_EXT_DISPLAY *pdisplay = pwindow->connexion ;
XW_EXT_IMAGEDATA *pimage ;
int wx,wy;
#if defined(HAVE_X11_EXTENSIONS_READDISPLAY_H) || defined(HAVE_X11_EXTENSIONS_TRANSOLV_H)
int mOptCode,fEvent,fError;
#endif
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_get_image",pwindow) ;
return (NULL) ;
}
if( width <= 0 || height <= 0 ) return NULL;
wx = xc - width/2 ;
wy = yc - height/2 ;
if( wx < 0 ) wx = 0;
if( wy < 0 ) wy = 0;
if( !(pimage = Xw_add_imagedata_structure(sizeof(XW_EXT_IMAGEDATA))) )
return (NULL) ;
pimage->pimageinfo = aimageinfo ;
if( _DGRAB ) {
wx += _X ; wy += _Y ;
if( (wx + width) < 0 || wx > _DWIDTH ||
(wy + height) < 0 || wy > _DHEIGHT ) {
Xw_del_imagedata_structure(pimage) ;
/*WARNING*Try to Get Image from outside the display*/
Xw_set_error(45,"Xw_get_image",0) ;
return (NULL) ;
}
if( width > _DWIDTH ) width = _DWIDTH;
if( height > _DHEIGHT ) height = _DHEIGHT;
if( wx + width > _DWIDTH ) width = _DWIDTH - wx;
if( wy + height > _DHEIGHT ) height = _DHEIGHT - wy;
_ICOLORMAP = NULL ;
_IIMAGE = NULL ;
#ifdef HAVE_X11_EXTENSIONS_READDISPLAY_H
if( XQueryExtension(_DISPLAY,"ReadDisplay",&mOptCode,&fEvent,&fError) ) {
XGrabServer(_DISPLAY);
XSync(_DISPLAY,False);
_IIMAGE = XReadDisplay(_DISPLAY,_DROOT,wx,wy,width,height,0,0);
XUngrabServer(_DISPLAY);
XSync(_DISPLAY,False);
}
#endif // HAVE_X11_EXTENSIONS_READDISPLAY_H
#ifdef HAVE_X11_EXTENSIONS_TRANSOLV_H
if( XQueryExtension(_DISPLAY,"SUN_OVL",&mOptCode,&fEvent,&fError) ) {
XGrabServer(_DISPLAY);
XSync(_DISPLAY,False);
_IIMAGE = XReadScreen(_DISPLAY,_DROOT,wx,wy,width,height,False);
XUngrabServer(_DISPLAY);
XSync(_DISPLAY,False);
}
#endif // HAVE_X11_EXTENSIONS_TRANSOLV_H
if( !_IIMAGE )
_IIMAGE = XGetImage(_DISPLAY,_DROOT,wx,wy,
width,height,AllPlanes,ZPixmap) ;
} else {
if( (wx + width) < 0 || wx > _WIDTH ||
(wy + height) < 0 || wy > _HEIGHT ) {
Xw_del_imagedata_structure(pimage) ;
/*WARNING*Try to Get Image from outside the window*/
Xw_set_error(45,"Xw_get_image",0) ;
return (NULL) ;
}
if( width > _WIDTH ) width = _WIDTH;
if( height > _HEIGHT ) height = _HEIGHT;
if( wx + width > _WIDTH ) width = _WIDTH - wx;
if( wy + height > _HEIGHT ) height = _HEIGHT - wy;
_ICOLORMAP = _COLORMAP ;
_IIMAGE = NULL;
#ifdef HAVE_X11_EXTENSIONS_READDISPLAY_H
if( XQueryExtension(_DISPLAY,"ReadDisplay",&mOptCode,&fEvent,&fError) )
{
unsigned int flag = XRD_IGNORE_LAYER_1 | XRD_IGNORE_LAYER_2 |
XRD_IGNORE_LAYER_MINUS_1;
int rx,ry;
Window child;
XGrabServer(_DISPLAY);
XSync(_DISPLAY,False);
XTranslateCoordinates(_DISPLAY,_WINDOW,_DROOT,wx,wy,&rx,&ry,&child);
_IIMAGE = XReadDisplay(_DISPLAY,_WINDOW,rx,ry,width,height,flag,0);
XUngrabServer(_DISPLAY);
XSync(_DISPLAY,False);
}
#endif // HAVE_X11_EXTENSIONS_READDISPLAY_H
#ifdef HAVE_X11_EXTENSIONS_TRANSOLV_H
if( XQueryExtension(_DISPLAY,"SUN_OVL",&mOptCode,&fEvent,&fError) )
{
XGrabServer(_DISPLAY);
XSync(_DISPLAY,False);
_IIMAGE = XReadScreen(_DISPLAY,_WINDOW,wx,wy,width,height,False);
XUngrabServer(_DISPLAY);
XSync(_DISPLAY,False);
}
#endif // HAVE_X11_EXTENSIONS_TRANSOLV_H
if( !_IIMAGE )
_IIMAGE = XGetImage(_DISPLAY,_WINDOW,wx,wy,
width,height,AllPlanes,ZPixmap) ;
}
if( !_IIMAGE ) {
Xw_del_imagedata_structure(pimage) ;
/*WARNING*XImage allocation failed*/
Xw_set_error(60,"Xw_get_image",0) ;
return (NULL) ;
}
else if( _IIMAGE->depth > 24 ) _IIMAGE->depth = 24;
#ifdef TRACE_GET_IMAGE
if( Xw_get_trace() ) {
printf (" %lx = Xw_get_image(%lx,%lx,%d,%d,%d,%d)\n",
(long ) pimage,(long ) pwindow,(long ) aimageinfo,xc,yc,width,height);
}
#endif
return (pimage);
}
#ifdef XW_PROTOTYPE
void* Xw_get_image_from_pixmap (void* awindow, void *aimageinfo,
Aspect_Handle pixmap, int xc,int yc,int width,int height)
#else
void* Xw_get_image_from_pixmap (awindow,aimageinfo,pixmap,xc,yc,width,height)
void *awindow;
void *aimageinfo ;
Aspect_Handle pixmap;
int xc,yc ;
int width,height ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow;
// XW_EXT_DISPLAY *pdisplay = pwindow->connexion ;
XW_EXT_IMAGEDATA *pimage ;
int wx,wy;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_get_image_from_pixmap",pwindow) ;
return (NULL) ;
}
if( pixmap == 0 || width <= 0 || height <= 0 ) return NULL;
wx = xc - width/2 ;
wy = yc - height/2 ;
if( wx < 0 ) wx = 0;
if( wy < 0 ) wy = 0;
if( !(pimage = Xw_add_imagedata_structure(sizeof(XW_EXT_IMAGEDATA))) )
return (NULL) ;
pimage->pimageinfo = aimageinfo ;
_IIMAGE = XGetImage(_DISPLAY,pixmap,wx,wy,
width,height,AllPlanes,ZPixmap) ;
if( !_IIMAGE ) {
Xw_del_imagedata_structure(pimage) ;
/*WARNING*XImage allocation failed*/
Xw_set_error(60,"Xw_get_image_from_pixmap",0) ;
return (NULL) ;
} else {
_IIMAGE->red_mask = _VISUAL->red_mask;
_IIMAGE->green_mask = _VISUAL->green_mask;
_IIMAGE->blue_mask = _VISUAL->blue_mask;
if( _IIMAGE->depth > 24 ) _IIMAGE->depth = 24;
}
#ifdef TRACE_GET_IMAGE
if( Xw_get_trace() ) {
printf (" %lx = Xw_get_image_from_pixmap(%lx,%lx,%lx,%d,%d,%d,%d)\n",
(long ) pimage,(long ) pwindow,(long ) aimageinfo, pixmap,xc,yc,width,height);
}
#endif
return (pimage);
}
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