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/*
* Copyright (c) 1994 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and the Network Research Group at
* Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char rcsid[] =
"@(#) $Header: /cs/research/mice/starship/src/local/CVS_repository/vic/color-gray.cc,v 1.3 1999/06/03 15:49:05 piers Exp $ (LBL)";
#endif
#include <stdlib.h>
#include <stdio.h>
//#include <X11/Xlib.h>
//#include <X11/Xutil.h>
#include "renderer-window.h"
#include "color-pseudo.h"
#include "bsd-endian.h"
#include "vw.h"
class GrayColorModel : public ColorModel {
public:
~GrayColorModel();
virtual int command(int argc, const char*const* argv);
};
class GrayColorMatcher : public Matcher {
public:
GrayColorMatcher() : Matcher("colormodel") {}
virtual TclObject* match(const char* id) {
if (strcasecmp(id, "pseudocolor/8/gray") == 0)
return (new GrayColorModel());
return (0);
}
} matcher_gray;
GrayColorModel::~GrayColorModel()
{
/*XXX*/
}
class GrayWindowRenderer;
typedef void (GrayWindowRenderer::*GrayMethod)(const u_char*, u_int,
u_int, u_int, u_int) const;
class GrayWindowRenderer : public PseudoWindowRenderer {
public:
GrayWindowRenderer(VideoWindow* vw, int decimation,
const u_short* graylut) :
PseudoWindowRenderer(vw, decimation, graylut) { }
void render(const u_char* frm, int off, int x, int w, int h) {
(this->*method_)(frm, off, x, w, h);
}
protected:
virtual void update();
virtual void disable() { method_ = &PseudoWindowRenderer::dither_null; }
GrayMethod method_;
};
int GrayColorModel::command(int argc, const char*const* argv)
{
if (argc == 4 && strcmp(argv[1], "renderer") == 0) {
Tcl& tcl = Tcl::instance();
VideoWindow* vw = VideoWindow::lookup(argv[2]);
int decimation = atoi(argv[3]);
Renderer* r = new GrayWindowRenderer(vw, decimation,
graylut());
tcl.result(r->name());
return (TCL_OK);
}
return (ColorModel::command(argc, argv));
}
void GrayWindowRenderer::update()
{
if (scale_ > 0)
method_ = &GrayWindowRenderer::dither_gray_down;
else if (scale_ < 0)
method_ = &GrayWindowRenderer::dither_gray_up;
else
method_ = &GrayWindowRenderer::dither_gray;
}
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