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/*
general.psw
Copyright (C) 2000 Free Software Foundation, Inc.
Author: Adam Fedor <fedor@gnu.org>
Date: May 2000
This file is part of the GNUstep GUI X/DPS Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; see the file COPYING.LIB.
If not, see <http://www.gnu.org/licenses/> or write to the
Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <DPS/dpsclient.h>
defineps DPSWKnownExtensions (DPSContext ctxt | int *extflag)
0
systemdict /alphaimage known {1 add} if
systemdict /composite known {2 add} if
systemdict /compositerect known {4 add} if
systemdict /dissolve known {8 add} if
systemdict /readimage known {16 add} if
systemdict /setalpha known {32 add} if
systemdict /flushpage known {64 add} if
extflag
endps
defineps DPSWWorkingExtensions(DPSContext ctxt | boolean *supported)
{
0 0 10 10 null 10 10 2 composite
} stopped not
supported
endps
/* Define our own versions of NeXT extension wrappers since they
aren't neccesarily in the DPS library
*/
defineps PSWalphaimage ()
alphaimage
endps
defineps PSWcomposite (float x, y, w, h; int gstateNum; float dx, dy; int op)
x y w h
gstateNum dup 0 eq {null} {execuserobject} ifelse
dx dy op composite
endps
defineps PSWcompositerect (float x, y, w, h; int op)
x y w h op compositerect
endps
defineps PSWdissolve (float x, y, w, h; int gstateNum; float dx, dy, delta)
x y w h
gstateNum dup 0 eq {null} {execuserobject} ifelse
dx dy delta dissolve
endps
defineps PSWreadimage ()
readimage
endps
defineps PSWsetalpha (float alpha)
alpha setalpha
endps
defineps PSWcurrentalpha (| float *alpha)
currentalpha alpha
endps
defineps PSWflushpage ()
flushpage
endps
/* Image helper wrappers */
defineps PSWColorImageHeader(int width, height, bps, spp)
width height bps
[width 0 0 height neg 0 height]
currentfile false spp colorimage
endps
defineps PSWImageHeader(int width, height, bps)
width height bps
[width 0 0 height neg 0 height]
currentfile image
endps
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