src/common/xraster.c

/*

#ifndef lint
static char SCCSid[] = "$SunId$ LBL";
#endif
 * xraster.c - routine to load a Sun rasterfile for X windows.
 *
 *      2/18/88
 */

#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((char *)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((char *)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((char *)xr->data.bz);
                free((char *)xr->pmap);
                free((char *)xr->cdefs);
        } else
                free((char *)xr->data.m);
        free((char *)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:	1.1
Committed:	Thu Feb 2 10:34:42 1989 UTC (36 years, 8 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Log Message:	Initial revision
#	User	Rev	Content
1	greg	1.1	/*
2
3			#ifndef lint
4			static char SCCSid[] = "$SunId$ LBL";
5			#endif
6			* xraster.c - routine to load a Sun rasterfile for X windows.
7			*
8			* 2/18/88
9			*/
10
11			#include <stdio.h>
12
13			#include <X/Xlib.h>
14
15			#include "xraster.h"
16
17
18			int *
19			map_rcolors(xr) /* get and assign pixels */
20			register XRASTER *xr;
21			{
22			register int i;
23			register unsigned char *p;
24			int j;
25
26			if (xr->ncolors == 0)
27			return(NULL);
28			if (xr->pixels != NULL)
29			return(xr->pixels);
30			xr->pixels = (int )malloc(xr->ncolorssizeof(int));
31			if (xr->pixels == NULL)
32			return(NULL);
33			if (XGetColorCells(0, xr->ncolors, 0, &j, xr->pixels) == 0) {
34			free((char *)xr->pixels);
35			xr->pixels = NULL;
36			return(NULL);
37			}
38			for (i = 0; i < xr->ncolors; i++)
39			if (xr->pmap[xr->pixels[i]] == -1)
40			break;
41			if (i < xr->ncolors) { /* different pixels */
42			for (p = xr->data.bz, i = BZPixmapSize(xr->width,xr->height);
43			i--; p++)
44			p = xr->pixels[xr->pmap[p]];
45			for (i = 0; i < 256; i++)
46			xr->pmap[i] = -1;
47			for (i = 0; i < xr->ncolors; i++) {
48			xr->cdefs[i].pixel = xr->pixels[i];
49			xr->pmap[xr->pixels[i]] = i;
50			}
51			free_rpixmap(xr); /* Pixmap invalid */
52			}
53			XStoreColors(xr->ncolors, xr->cdefs);
54			return(xr->pixels);
55			}
56
57
58			Pixmap
59			make_rpixmap(xr) /* make pixmap for raster */
60			register XRASTER *xr;
61			{
62			Bitmap bm;
63
64			if (xr->pm != 0)
65			return(xr->pm);
66			if (xr->ncolors > 0) {
67			if (DisplayPlanes() < 2 \|\| DisplayPlanes() > 8)
68			return(0);
69			xr->pm = XStorePixmapZ(xr->width, xr->height, xr->data.bz);
70			} else {
71			bm = XStoreBitmap(xr->width, xr->height, xr->data.m);
72			if (bm == 0)
73			return(0);
74			xr->pm = XMakePixmap(bm, BlackPixel, WhitePixel);
75			XFreeBitmap(bm);
76			}
77			return(xr->pm);
78			}
79
80
81			unmap_rcolors(xr) /* free colors */
82			register XRASTER *xr;
83			{
84			if (xr->pixels == NULL)
85			return;
86			XFreeColors(xr->pixels, xr->ncolors, 0);
87			free((char *)xr->pixels);
88			xr->pixels = NULL;
89			}
90
91
92			free_rpixmap(xr) /* release Pixmap */
93			register XRASTER *xr;
94			{
95			if (xr->pm == 0)
96			return;
97			XFreePixmap(xr->pm);
98			xr->pm = 0;
99			}
100
101
102			free_raster(xr) /* free raster data */
103			register XRASTER *xr;
104			{
105			free_rpixmap(xr);
106			if (xr->ncolors > 0) {
107			unmap_rcolors(xr);
108			free((char *)xr->data.bz);
109			free((char *)xr->pmap);
110			free((char *)xr->cdefs);
111			} else
112			free((char *)xr->data.m);
113			free((char *)xr);
114			}
115
116
117			put_raster(w, x, y, xr) /* put raster into window */
118			Window w;
119			int x, y;
120			register XRASTER *xr;
121			{
122			if (xr->pm != 0) {
123			XPixmapPut(w, 0, 0, x, y, xr->width, xr->height,
124			xr->pm, GXcopy, AllPlanes);
125			} else if (xr->ncolors > 0) {
126			if (DisplayPlanes() < 2 \|\| DisplayPlanes() > 8)
127			return(0);
128			XPixmapBitsPutZ(w, x, y, xr->width, xr->height,
129			xr->data.bz, 0, GXcopy, AllPlanes);
130			} else {
131			XBitmapBitsPut(w, x, y, xr->width, xr->height,
132			xr->data.m, BlackPixel, WhitePixel,
133			0, GXcopy, AllPlanes);
134			}
135			return(1);
136			}
137
138
139			patch_raster(w, xsrc, ysrc, xdst, ydst, width, height, xr) /* piece */
140			Window w;
141			int xsrc, ysrc, xdst, ydst;
142			int width, height;
143			register XRASTER *xr;
144			{
145			register char *p;
146
147			if (xsrc >= xr->width \|\| ysrc >= xr->height)
148			return(1);
149			if (xsrc < 0) {
150			xdst -= xsrc; width += xsrc;
151			xsrc = 0;
152			}
153			if (ysrc < 0) {
154			ydst -= ysrc; height += ysrc;
155			ysrc = 0;
156			}
157			if (width <= 0 \|\| height <= 0)
158			return(1);
159			if (xsrc + width > xr->width)
160			width = xr->width - xsrc;
161			if (ysrc + height > xr->height)
162			height = xr->height - ysrc;
163			if (xr->pm != 0) {
164			XPixmapPut(w, xsrc, ysrc, xdst, ydst, width, height,
165			xr->pm, GXcopy, AllPlanes);
166			} else if (xr->ncolors > 0) {
167			if (DisplayPlanes() < 2 \|\| DisplayPlanes() > 8)
168			return(0);
169			p = (char *)xr->data.bz + BZPixmapSize(xr->width,ysrc)
170			+ BZPixmapSize(xsrc,1);
171			while (height--) {
172			XPixmapBitsPutZ(w, xdst, ydst, width, 1, p,
173			0, GXcopy, AllPlanes);
174			p += BZPixmapSize(xr->width,1);
175			ydst++;
176			}
177			} else {
178			xdst -= xsrc&15; width += xsrc&15;
179			xsrc &= ~15;
180			p = (char *)xr->data.m + BitmapSize(xr->width,ysrc)
181			+ BitmapSize(xsrc,1);
182			while (height--) {
183			XBitmapBitsPut(w, xdst, ydst, width, 1,
184			p, BlackPixel, WhitePixel,
185			0, GXcopy, AllPlanes);
186			p += BitmapSize(xr->width,1);
187			ydst++;
188			}
189			}
190			return(1);
191			}