src/px/xraster.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 * xraster.c - routines to handle images for X windows.
 */

/* ====================================================================
 * The Radiance Software License, Version 1.0
 *
 * Copyright (c) 1990 - 2002 The Regents of the University of California,
 * through Lawrence Berkeley National Laboratory.   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. The end-user documentation included with the redistribution,
 *           if any, must include the following acknowledgment:
 *             "This product includes Radiance software
 *                 (http://radsite.lbl.gov/)
 *                 developed by the Lawrence Berkeley National Laboratory
 *               (http://www.lbl.gov/)."
 *       Alternately, this acknowledgment may appear in the software itself,
 *       if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
 *       and "The Regents of the University of California" must
 *       not be used to endorse or promote products derived from this
 *       software without prior written permission. For written
 *       permission, please contact [email protected].
 *
 * 5. Products derived from this software may not be called "Radiance",
 *       nor may "Radiance" appear in their name, without prior written
 *       permission of Lawrence Berkeley National Laboratory.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 Lawrence Berkeley National Laboratory OR
 * ITS 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Lawrence Berkeley National Laboratory.   For more
 * information on Lawrence Berkeley National Laboratory, please see
 * <http://www.lbl.gov/>.
 */

#include <stdio.h>

#include <X/Xlib.h>

#include "xraster.h"


int *
map_rcolors(xr)                                 /* get and assign pixels */
register XRASTER        *xr;
{
        register int    i;
        register unsigned char  *p;
        int     j;

        if (xr->ncolors == 0)
                return(NULL);
        if (xr->pixels != NULL)
                return(xr->pixels);
        xr->pixels = (int *)malloc(xr->ncolors*sizeof(int));
        if (xr->pixels == NULL)
                return(NULL);
        if (XGetColorCells(0, xr->ncolors, 0, &j, xr->pixels) == 0) {
                free((void *)xr->pixels);
                xr->pixels = NULL;
                return(NULL);
        }
        for (i = 0; i < xr->ncolors; i++)
                if (xr->pmap[xr->pixels[i]] == -1)
                        break;
        if (i < xr->ncolors) {                  /* different pixels */
                for (p = xr->data.bz, i = BZPixmapSize(xr->width,xr->height);
                                i--; p++)
                        *p = xr->pixels[xr->pmap[*p]];
                for (i = 0; i < 256; i++)
                        xr->pmap[i] = -1;
                for (i = 0; i < xr->ncolors; i++) {
                        xr->cdefs[i].pixel = xr->pixels[i];
                        xr->pmap[xr->pixels[i]] = i;
                }
                free_rpixmap(xr);               /* Pixmap invalid */
        }
        XStoreColors(xr->ncolors, xr->cdefs);
        return(xr->pixels);
}


Pixmap
make_rpixmap(xr)                        /* make pixmap for raster */
register XRASTER        *xr;
{
        Bitmap  bm;

        if (xr->pm != 0)
                return(xr->pm);
        if (xr->ncolors > 0) {
                if (DisplayPlanes() < 2 || DisplayPlanes() > 8)
                        return(0);
                xr->pm = XStorePixmapZ(xr->width, xr->height, xr->data.bz);
        } else {
                bm = XStoreBitmap(xr->width, xr->height, xr->data.m);
                if (bm == 0)
                        return(0);
                xr->pm = XMakePixmap(bm, BlackPixel, WhitePixel);
                XFreeBitmap(bm);
        }
        return(xr->pm);
}


unmap_rcolors(xr)                       /* free colors */
register XRASTER        *xr;
{
        if (xr->pixels == NULL)
                return;
        XFreeColors(xr->pixels, xr->ncolors, 0);
        free((void *)xr->pixels);
        xr->pixels = NULL;
}


free_rpixmap(xr)                        /* release Pixmap */
register XRASTER        *xr;
{
        if (xr->pm == 0)
                return;
        XFreePixmap(xr->pm);
        xr->pm = 0;
}


free_raster(xr)                         /* free raster data */
register XRASTER        *xr;
{
        free_rpixmap(xr);
        if (xr->ncolors > 0) {
                unmap_rcolors(xr);
                free((void *)xr->data.bz);
                free((void *)xr->pmap);
                free((void *)xr->cdefs);
        } else
                free((void *)xr->data.m);
        free((void *)xr);
}


put_raster(w, x, y, xr)                 /* put raster into window */
Window  w;
int     x, y;
register XRASTER        *xr;
{
        if (xr->pm != 0) {
                XPixmapPut(w, 0, 0, x, y, xr->width, xr->height,
                                xr->pm, GXcopy, AllPlanes);
        } else if (xr->ncolors > 0) {
                if (DisplayPlanes() < 2 || DisplayPlanes() > 8)
                        return(0);
                XPixmapBitsPutZ(w, x, y, xr->width, xr->height,
                                xr->data.bz, 0, GXcopy, AllPlanes);
        } else {
                XBitmapBitsPut(w, x, y, xr->width, xr->height,
                                xr->data.m, BlackPixel, WhitePixel,
                                0, GXcopy, AllPlanes);
        }
        return(1);
}


patch_raster(w, xsrc, ysrc, xdst, ydst, width, height, xr)      /* piece */
Window  w;
int     xsrc, ysrc, xdst, ydst;
int     width, height;
register XRASTER        *xr;
{
        register char   *p;

        if (xsrc >= xr->width || ysrc >= xr->height)
                return(1);
        if (xsrc < 0) {
                xdst -= xsrc; width += xsrc;
                xsrc = 0;
        }
        if (ysrc < 0) {
                ydst -= ysrc; height += ysrc;
                ysrc = 0;
        }
        if (width <= 0 || height <= 0)
                return(1);
        if (xsrc + width > xr->width)
                width = xr->width - xsrc;
        if (ysrc + height > xr->height)
                height = xr->height - ysrc;
        if (xr->pm != 0) {
                XPixmapPut(w, xsrc, ysrc, xdst, ydst, width, height,
                                xr->pm, GXcopy, AllPlanes);
        } else if (xr->ncolors > 0) {
                if (DisplayPlanes() < 2 || DisplayPlanes() > 8)
                        return(0);
                p = (char *)xr->data.bz + BZPixmapSize(xr->width,ysrc)
                                + BZPixmapSize(xsrc,1);
                while (height--) {
                        XPixmapBitsPutZ(w, xdst, ydst, width, 1, p,
                                        0, GXcopy, AllPlanes);
                        p += BZPixmapSize(xr->width,1);
                        ydst++;
                }
        } else {
                xdst -= xsrc&15; width += xsrc&15;
                xsrc &= ~15;
                p = (char *)xr->data.m + BitmapSize(xr->width,ysrc)
                                + BitmapSize(xsrc,1);
                while (height--) {
                        XBitmapBitsPut(w, xdst, ydst, width, 1,
                                        p, BlackPixel, WhitePixel,
                                        0, GXcopy, AllPlanes);
                        p += BitmapSize(xr->width,1);
                        ydst++;
                }
        }
        return(1);
}
Revision:	3.1
Committed:	Sat Feb 22 02:07:28 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	3.1	#ifndef lint
2			static const char RCSid[] = "$Id$";
3			#endif
4			/*
5			* xraster.c - routines to handle images for X windows.
6			*/
7
8			/* ====================================================================
9			* The Radiance Software License, Version 1.0
10			*
11			* Copyright (c) 1990 - 2002 The Regents of the University of California,
12			* through Lawrence Berkeley National Laboratory. All rights reserved.
13			*
14			* Redistribution and use in source and binary forms, with or without
15			* modification, are permitted provided that the following conditions
16			* are met:
17			*
18			* 1. Redistributions of source code must retain the above copyright
19			* notice, this list of conditions and the following disclaimer.
20			*
21			* 2. Redistributions in binary form must reproduce the above copyright
22			* notice, this list of conditions and the following disclaimer in
23			* the documentation and/or other materials provided with the
24			* distribution.
25			*
26			* 3. The end-user documentation included with the redistribution,
27			* if any, must include the following acknowledgment:
28			* "This product includes Radiance software
29			* (http://radsite.lbl.gov/)
30			* developed by the Lawrence Berkeley National Laboratory
31			* (http://www.lbl.gov/)."
32			* Alternately, this acknowledgment may appear in the software itself,
33			* if and wherever such third-party acknowledgments normally appear.
34			*
35			* 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
36			* and "The Regents of the University of California" must
37			* not be used to endorse or promote products derived from this
38			* software without prior written permission. For written
39			* permission, please contact [email protected].
40			*
41			* 5. Products derived from this software may not be called "Radiance",
42			* nor may "Radiance" appear in their name, without prior written
43			* permission of Lawrence Berkeley National Laboratory.
44			*
45			* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
46			* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
48			* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
49			* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
50			* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
51			* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
52			* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
53			* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
54			* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
55			* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56			* SUCH DAMAGE.
57			* ====================================================================
58			*
59			* This software consists of voluntary contributions made by many
60			* individuals on behalf of Lawrence Berkeley National Laboratory. For more
61			* information on Lawrence Berkeley National Laboratory, please see
62			* <http://www.lbl.gov/>.
63			*/
64
65			#include <stdio.h>
66
67			#include <X/Xlib.h>
68
69			#include "xraster.h"
70
71
72			int *
73			map_rcolors(xr) /* get and assign pixels */
74			register XRASTER *xr;
75			{
76			register int i;
77			register unsigned char *p;
78			int j;
79
80			if (xr->ncolors == 0)
81			return(NULL);
82			if (xr->pixels != NULL)
83			return(xr->pixels);
84			xr->pixels = (int )malloc(xr->ncolorssizeof(int));
85			if (xr->pixels == NULL)
86			return(NULL);
87			if (XGetColorCells(0, xr->ncolors, 0, &j, xr->pixels) == 0) {
88			free((void *)xr->pixels);
89			xr->pixels = NULL;
90			return(NULL);
91			}
92			for (i = 0; i < xr->ncolors; i++)
93			if (xr->pmap[xr->pixels[i]] == -1)
94			break;
95			if (i < xr->ncolors) { /* different pixels */
96			for (p = xr->data.bz, i = BZPixmapSize(xr->width,xr->height);
97			i--; p++)
98			p = xr->pixels[xr->pmap[p]];
99			for (i = 0; i < 256; i++)
100			xr->pmap[i] = -1;
101			for (i = 0; i < xr->ncolors; i++) {
102			xr->cdefs[i].pixel = xr->pixels[i];
103			xr->pmap[xr->pixels[i]] = i;
104			}
105			free_rpixmap(xr); /* Pixmap invalid */
106			}
107			XStoreColors(xr->ncolors, xr->cdefs);
108			return(xr->pixels);
109			}
110
111
112			Pixmap
113			make_rpixmap(xr) /* make pixmap for raster */
114			register XRASTER *xr;
115			{
116			Bitmap bm;
117
118			if (xr->pm != 0)
119			return(xr->pm);
120			if (xr->ncolors > 0) {
121			if (DisplayPlanes() < 2 \|\| DisplayPlanes() > 8)
122			return(0);
123			xr->pm = XStorePixmapZ(xr->width, xr->height, xr->data.bz);
124			} else {
125			bm = XStoreBitmap(xr->width, xr->height, xr->data.m);
126			if (bm == 0)
127			return(0);
128			xr->pm = XMakePixmap(bm, BlackPixel, WhitePixel);
129			XFreeBitmap(bm);
130			}
131			return(xr->pm);
132			}
133
134
135			unmap_rcolors(xr) /* free colors */
136			register XRASTER *xr;
137			{
138			if (xr->pixels == NULL)
139			return;
140			XFreeColors(xr->pixels, xr->ncolors, 0);
141			free((void *)xr->pixels);
142			xr->pixels = NULL;
143			}
144
145
146			free_rpixmap(xr) /* release Pixmap */
147			register XRASTER *xr;
148			{
149			if (xr->pm == 0)
150			return;
151			XFreePixmap(xr->pm);
152			xr->pm = 0;
153			}
154
155
156			free_raster(xr) /* free raster data */
157			register XRASTER *xr;
158			{
159			free_rpixmap(xr);
160			if (xr->ncolors > 0) {
161			unmap_rcolors(xr);
162			free((void *)xr->data.bz);
163			free((void *)xr->pmap);
164			free((void *)xr->cdefs);
165			} else
166			free((void *)xr->data.m);
167			free((void *)xr);
168			}
169
170
171			put_raster(w, x, y, xr) /* put raster into window */
172			Window w;
173			int x, y;
174			register XRASTER *xr;
175			{
176			if (xr->pm != 0) {
177			XPixmapPut(w, 0, 0, x, y, xr->width, xr->height,
178			xr->pm, GXcopy, AllPlanes);
179			} else if (xr->ncolors > 0) {
180			if (DisplayPlanes() < 2 \|\| DisplayPlanes() > 8)
181			return(0);
182			XPixmapBitsPutZ(w, x, y, xr->width, xr->height,
183			xr->data.bz, 0, GXcopy, AllPlanes);
184			} else {
185			XBitmapBitsPut(w, x, y, xr->width, xr->height,
186			xr->data.m, BlackPixel, WhitePixel,
187			0, GXcopy, AllPlanes);
188			}
189			return(1);
190			}
191
192
193			patch_raster(w, xsrc, ysrc, xdst, ydst, width, height, xr) /* piece */
194			Window w;
195			int xsrc, ysrc, xdst, ydst;
196			int width, height;
197			register XRASTER *xr;
198			{
199			register char *p;
200
201			if (xsrc >= xr->width \|\| ysrc >= xr->height)
202			return(1);
203			if (xsrc < 0) {
204			xdst -= xsrc; width += xsrc;
205			xsrc = 0;
206			}
207			if (ysrc < 0) {
208			ydst -= ysrc; height += ysrc;
209			ysrc = 0;
210			}
211			if (width <= 0 \|\| height <= 0)
212			return(1);
213			if (xsrc + width > xr->width)
214			width = xr->width - xsrc;
215			if (ysrc + height > xr->height)
216			height = xr->height - ysrc;
217			if (xr->pm != 0) {
218			XPixmapPut(w, xsrc, ysrc, xdst, ydst, width, height,
219			xr->pm, GXcopy, AllPlanes);
220			} else if (xr->ncolors > 0) {
221			if (DisplayPlanes() < 2 \|\| DisplayPlanes() > 8)
222			return(0);
223			p = (char *)xr->data.bz + BZPixmapSize(xr->width,ysrc)
224			+ BZPixmapSize(xsrc,1);
225			while (height--) {
226			XPixmapBitsPutZ(w, xdst, ydst, width, 1, p,
227			0, GXcopy, AllPlanes);
228			p += BZPixmapSize(xr->width,1);
229			ydst++;
230			}
231			} else {
232			xdst -= xsrc&15; width += xsrc&15;
233			xsrc &= ~15;
234			p = (char *)xr->data.m + BitmapSize(xr->width,ysrc)
235			+ BitmapSize(xsrc,1);
236			while (height--) {
237			XBitmapBitsPut(w, xdst, ydst, width, 1,
238			p, BlackPixel, WhitePixel,
239			0, GXcopy, AllPlanes);
240			p += BitmapSize(xr->width,1);
241			ydst++;
242			}
243			}
244			return(1);
245			}