src/common/xraster.c

/*
 * 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:	2.3
Committed:	Sat Feb 22 02:07:23 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 2.2:	+0 -0 lines
State:	*FILE REMOVED*
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
#	Content
1	/*
2	* xraster.c - routines to handle images for X windows.
3	*/
4
5	/* ====================================================================
6	* The Radiance Software License, Version 1.0
7	*
8	* Copyright (c) 1990 - 2002 The Regents of the University of California,
9	* through Lawrence Berkeley National Laboratory. All rights reserved.
10	*
11	* Redistribution and use in source and binary forms, with or without
12	* modification, are permitted provided that the following conditions
13	* are met:
14	*
15	* 1. Redistributions of source code must retain the above copyright
16	* notice, this list of conditions and the following disclaimer.
17	*
18	* 2. Redistributions in binary form must reproduce the above copyright
19	* notice, this list of conditions and the following disclaimer in
20	* the documentation and/or other materials provided with the
21	* distribution.
22	*
23	* 3. The end-user documentation included with the redistribution,
24	* if any, must include the following acknowledgment:
25	* "This product includes Radiance software
26	* (http://radsite.lbl.gov/)
27	* developed by the Lawrence Berkeley National Laboratory
28	* (http://www.lbl.gov/)."
29	* Alternately, this acknowledgment may appear in the software itself,
30	* if and wherever such third-party acknowledgments normally appear.
31	*
32	* 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
33	* and "The Regents of the University of California" must
34	* not be used to endorse or promote products derived from this
35	* software without prior written permission. For written
36	* permission, please contact [email protected].
37	*
38	* 5. Products derived from this software may not be called "Radiance",
39	* nor may "Radiance" appear in their name, without prior written
40	* permission of Lawrence Berkeley National Laboratory.
41	*
42	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
43	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
44	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
45	* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
46	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
49	* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
50	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
51	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
52	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53	* SUCH DAMAGE.
54	* ====================================================================
55	*
56	* This software consists of voluntary contributions made by many
57	* individuals on behalf of Lawrence Berkeley National Laboratory. For more
58	* information on Lawrence Berkeley National Laboratory, please see
59	* <http://www.lbl.gov/>.
60	*/
61
62	#include <stdio.h>
63
64	#include <X/Xlib.h>
65
66	#include "xraster.h"
67
68
69	int *
70	map_rcolors(xr) /* get and assign pixels */
71	register XRASTER *xr;
72	{
73	register int i;
74	register unsigned char *p;
75	int j;
76
77	if (xr->ncolors == 0)
78	return(NULL);
79	if (xr->pixels != NULL)
80	return(xr->pixels);
81	xr->pixels = (int )malloc(xr->ncolorssizeof(int));
82	if (xr->pixels == NULL)
83	return(NULL);
84	if (XGetColorCells(0, xr->ncolors, 0, &j, xr->pixels) == 0) {
85	free((void *)xr->pixels);
86	xr->pixels = NULL;
87	return(NULL);
88	}
89	for (i = 0; i < xr->ncolors; i++)
90	if (xr->pmap[xr->pixels[i]] == -1)
91	break;
92	if (i < xr->ncolors) { /* different pixels */
93	for (p = xr->data.bz, i = BZPixmapSize(xr->width,xr->height);
94	i--; p++)
95	p = xr->pixels[xr->pmap[p]];
96	for (i = 0; i < 256; i++)
97	xr->pmap[i] = -1;
98	for (i = 0; i < xr->ncolors; i++) {
99	xr->cdefs[i].pixel = xr->pixels[i];
100	xr->pmap[xr->pixels[i]] = i;
101	}
102	free_rpixmap(xr); /* Pixmap invalid */
103	}
104	XStoreColors(xr->ncolors, xr->cdefs);
105	return(xr->pixels);
106	}
107
108
109	Pixmap
110	make_rpixmap(xr) /* make pixmap for raster */
111	register XRASTER *xr;
112	{
113	Bitmap bm;
114
115	if (xr->pm != 0)
116	return(xr->pm);
117	if (xr->ncolors > 0) {
118	if (DisplayPlanes() < 2 \|\| DisplayPlanes() > 8)
119	return(0);
120	xr->pm = XStorePixmapZ(xr->width, xr->height, xr->data.bz);
121	} else {
122	bm = XStoreBitmap(xr->width, xr->height, xr->data.m);
123	if (bm == 0)
124	return(0);
125	xr->pm = XMakePixmap(bm, BlackPixel, WhitePixel);
126	XFreeBitmap(bm);
127	}
128	return(xr->pm);
129	}
130
131
132	unmap_rcolors(xr) /* free colors */
133	register XRASTER *xr;
134	{
135	if (xr->pixels == NULL)
136	return;
137	XFreeColors(xr->pixels, xr->ncolors, 0);
138	free((void *)xr->pixels);
139	xr->pixels = NULL;
140	}
141
142
143	free_rpixmap(xr) /* release Pixmap */
144	register XRASTER *xr;
145	{
146	if (xr->pm == 0)
147	return;
148	XFreePixmap(xr->pm);
149	xr->pm = 0;
150	}
151
152
153	free_raster(xr) /* free raster data */
154	register XRASTER *xr;
155	{
156	free_rpixmap(xr);
157	if (xr->ncolors > 0) {
158	unmap_rcolors(xr);
159	free((void *)xr->data.bz);
160	free((void *)xr->pmap);
161	free((void *)xr->cdefs);
162	} else
163	free((void *)xr->data.m);
164	free((void *)xr);
165	}
166
167
168	put_raster(w, x, y, xr) /* put raster into window */
169	Window w;
170	int x, y;
171	register XRASTER *xr;
172	{
173	if (xr->pm != 0) {
174	XPixmapPut(w, 0, 0, x, y, xr->width, xr->height,
175	xr->pm, GXcopy, AllPlanes);
176	} else if (xr->ncolors > 0) {
177	if (DisplayPlanes() < 2 \|\| DisplayPlanes() > 8)
178	return(0);
179	XPixmapBitsPutZ(w, x, y, xr->width, xr->height,
180	xr->data.bz, 0, GXcopy, AllPlanes);
181	} else {
182	XBitmapBitsPut(w, x, y, xr->width, xr->height,
183	xr->data.m, BlackPixel, WhitePixel,
184	0, GXcopy, AllPlanes);
185	}
186	return(1);
187	}
188
189
190	patch_raster(w, xsrc, ysrc, xdst, ydst, width, height, xr) /* piece */
191	Window w;
192	int xsrc, ysrc, xdst, ydst;
193	int width, height;
194	register XRASTER *xr;
195	{
196	register char *p;
197
198	if (xsrc >= xr->width \|\| ysrc >= xr->height)
199	return(1);
200	if (xsrc < 0) {
201	xdst -= xsrc; width += xsrc;
202	xsrc = 0;
203	}
204	if (ysrc < 0) {
205	ydst -= ysrc; height += ysrc;
206	ysrc = 0;
207	}
208	if (width <= 0 \|\| height <= 0)
209	return(1);
210	if (xsrc + width > xr->width)
211	width = xr->width - xsrc;
212	if (ysrc + height > xr->height)
213	height = xr->height - ysrc;
214	if (xr->pm != 0) {
215	XPixmapPut(w, xsrc, ysrc, xdst, ydst, width, height,
216	xr->pm, GXcopy, AllPlanes);
217	} else if (xr->ncolors > 0) {
218	if (DisplayPlanes() < 2 \|\| DisplayPlanes() > 8)
219	return(0);
220	p = (char *)xr->data.bz + BZPixmapSize(xr->width,ysrc)
221	+ BZPixmapSize(xsrc,1);
222	while (height--) {
223	XPixmapBitsPutZ(w, xdst, ydst, width, 1, p,
224	0, GXcopy, AllPlanes);
225	p += BZPixmapSize(xr->width,1);
226	ydst++;
227	}
228	} else {
229	xdst -= xsrc&15; width += xsrc&15;
230	xsrc &= ~15;
231	p = (char *)xr->data.m + BitmapSize(xr->width,ysrc)
232	+ BitmapSize(xsrc,1);
233	while (height--) {
234	XBitmapBitsPut(w, xdst, ydst, width, 1,
235	p, BlackPixel, WhitePixel,
236	0, GXcopy, AllPlanes);
237	p += BitmapSize(xr->width,1);
238	ydst++;
239	}
240	}
241	return(1);
242	}