+++ /dev/null
-
-/* send.c */
-
-#include "xli.h"
-
-/* extra colors to try allocating in private color maps to minimise flashing */
-#define NOFLASH_COLORS 256
-
-Image *monochrome(Image *cimage)
-{
- Image *image;
- unsigned char *sp, *dp, *dp2; /* data pointers */
- unsigned int spl; /* source pixel length in bytes */
- unsigned int dll; /* destination line length in bytes */
- Pixel color; /* pixel color */
- unsigned int x, y; /* random counters */
- int bitmap_pixel;
-
- if (BITMAPP(cimage))
- return(NULL);
-
- /*
- printf(" Converting to monochrome...");
- fflush(stdout);
- */
-
- image= newBitImage(cimage->width, cimage->height);
- if (cimage->title)
- {
- image->title= (char *)lmalloc(strlen(cimage->title) + 13);
- sprintf(image->title, "%s (monochrome)", cimage->title);
- }
-
- spl = cimage->pixlen;
- dll = (image->width / 8) + (image->width % 8 ? 1 : 0);
-
- sp = cimage->data;
- dp = image->data;
-
- for (y= 0; y < cimage->height; y++)
- {
- for (x= 0; x < cimage->width; x++)
- {
- dp2 = dp + (x / 8); /* dp + x/8 */
- color= memToVal(sp, spl);
-
- if (cimage->rgb.red[color] > 0x0000 ||
- cimage->rgb.green[color] > 0x0000 ||
- cimage->rgb.blue[color] > 0x0000)
- bitmap_pixel = 0x00;
- else
- bitmap_pixel = 0x80;
-
- *dp2 |= bitmap_pixel >> ( x % 8);
- sp += spl;
- }
-
- dp += dll; /* next row */
- }
-
- /*
- printf("done\n");
- */
-
- return(image);
-}
-
-static unsigned int *buildIndex(unsigned int width,
- unsigned int zoom,
- unsigned int *rwidth)
-{
- float fzoom;
- unsigned int *index;
- unsigned int a;
-
- if (!zoom)
- {
- fzoom= 100.0;
- *rwidth= width;
- }
- else
- {
- fzoom= (float)zoom / 100.0;
- *rwidth= (unsigned int)(fzoom * width + 0.5);
- }
- index= (unsigned int *)lmalloc(sizeof(unsigned int) * *rwidth);
- for (a= 0; a < *rwidth; a++)
- {
- if (zoom)
- *(index + a)= (unsigned int)((float)a / fzoom + 0.5);
- else
- *(index + a)= a;
- }
- return(index);
-}
-
-Image *zoom(Image *oimage, unsigned int xzoom, unsigned int yzoom)
-{
- Image *image;
- unsigned int *xindex, *yindex;
- unsigned int xwidth, ywidth;
- unsigned int x, y, xsrc, ysrc;
- unsigned int pixlen;
- unsigned int srclinelen;
- unsigned int destlinelen;
- byte *srcline, *srcptr;
- byte *destline, *destptr;
- byte srcmask, destmask, bit;
- Pixel value;
-
- if ((!xzoom || xzoom==100) && (!yzoom || yzoom==100))
- return(oimage);
-
- if (!xzoom)
- printf(" Zooming image Y axis by %d%%...", yzoom);
- else if (!yzoom)
- printf(" Zooming image X axis by %d%%...", xzoom);
- else if (xzoom == yzoom)
- printf(" Zooming image by %d%%...", xzoom);
- else
- printf(" Zooming image X axis by %d%% and Y axis by %d%%...",
- xzoom, yzoom);
- fflush(stdout);
-
- xindex= buildIndex(oimage->width, xzoom, &xwidth);
- yindex= buildIndex(oimage->height, yzoom, &ywidth);
-
- switch (oimage->type)
- {
- case IBITMAP:
- image= newBitImage(xwidth, ywidth);
- for (x= 0; x < oimage->rgb.used; x++)
- {
- *(image->rgb.red + x)= *(oimage->rgb.red + x);
- *(image->rgb.green + x)= *(oimage->rgb.green + x);
- *(image->rgb.blue + x)= *(oimage->rgb.blue + x);
- }
- image->rgb.used= oimage->rgb.used;
- destline= image->data;
- destlinelen= (xwidth / 8) + (xwidth % 8 ? 1 : 0);
- srcline= oimage->data;
- srclinelen= (oimage->width / 8) + (oimage->width % 8 ? 1 : 0);
- for (y= 0, ysrc= *(yindex + y); y < ywidth; y++)
- {
- while (ysrc != *(yindex + y))
- {
- ysrc++;
- srcline += srclinelen;
- }
- srcptr= srcline;
- destptr= destline;
- srcmask= 0x80;
- destmask= 0x80;
- bit= srcmask & *srcptr;
- for (x= 0, xsrc= *(xindex + x); x < xwidth; x++)
- {
- if (xsrc != *(xindex + x))
- {
- do
- {
- xsrc++;
- if (!(srcmask >>= 1))
- {
- srcmask= 0x80;
- srcptr++;
- }
- }
- while (xsrc != *(xindex + x));
-
- bit= srcmask & *srcptr;
- }
- if (bit)
- *destptr |= destmask;
- if (!(destmask >>= 1))
- {
- destmask= 0x80;
- destptr++;
- }
- }
- destline += destlinelen;
- }
- break;
-
- case IRGB:
- image= newRGBImage(xwidth, ywidth, oimage->depth);
- for (x= 0; x < oimage->rgb.used; x++)
- {
- *(image->rgb.red + x)= *(oimage->rgb.red + x);
- *(image->rgb.green + x)= *(oimage->rgb.green + x);
- *(image->rgb.blue + x)= *(oimage->rgb.blue + x);
- }
- image->rgb.used= oimage->rgb.used;
-
- pixlen= oimage->pixlen;
- destptr= image->data;
- srcline= oimage->data;
- srclinelen= oimage->width * pixlen;
- for (y= 0, ysrc= *(yindex + y); y < ywidth; y++)
- {
- while (ysrc != *(yindex + y))
- {
- ysrc++;
- srcline += srclinelen;
- }
-
- srcptr = srcline;
- value = memToVal(srcptr, image->pixlen);
-
- for (x=0, xsrc= *(xindex + x); x<xwidth; x++)
- {
- if (xsrc != *(xindex + x))
- {
- do
- {
- xsrc++;
- srcptr++;
- }
- while (xsrc != *(xindex + x));
- value = memToVal(srcptr, 1);
- }
- valToMem(value, destptr, 1);
- destptr++;
- }
- }
- break;
-
- default:
- /* no zooming */
- return(oimage);
- break;
- }
-
- image->title = dupString(oimage->title);
- free((byte *)xindex);
- free((byte *)yindex);
-
- printf("done\n");
-
- return(image);
-}
-
-void compress(Image *image)
-{
- unsigned char *used, fast[32][32][32];
- unsigned int dmask; /* Depth mask protection */
- Pixel *map;
- unsigned int next_index;
- Intensity *red = image->rgb.red,
- *green = image->rgb.green,
- *blue = image->rgb.blue;
- Intensity r,g,b;
- unsigned int x, y, badcount = 0, dupcount = 0, unusedcount = 0;
- unsigned char *pixptr, *pixend;
-
- if (!RGBP(image) || image->rgb.compressed)
- return;
-
- /*
- printf(" Compressing colormap...");
- fflush(stdout);
- */
-
- used = (unsigned char *)lcalloc(sizeof(unsigned char) * depthToColors(image->depth));
- dmask = (1 << image->depth) -1; /* Mask any illegal bits for that depth */
- map = (Pixel *)lcalloc(sizeof(Pixel) * depthToColors(image->depth));
-
- /* init fast duplicate check table */
- for(r=0;r<32;r++)
- for(g=0;g<32;g++)
- for(b=0;b<32;b++)
- fast[r][g][b] = 0;
-
- /* do pass 1 through the image to check index usage */
-
- pixptr = image->data;
- pixend = pixptr + (image->height * image->width);
- for(;pixptr < pixend; pixptr++)
- used[(*pixptr) & dmask] = 1;
-
- /* count the bad pixels */
- for (x = image->rgb.used; x < depthToColors(image->depth); x++)
- if (used[x])
- badcount++;
-
- /* figure out duplicates and unuseds, and create the new mapping */
- next_index = 0;
- for (x = 0; x < image->rgb.used; x++)
- {
- if (!used[x])
- {
- unusedcount++;
- continue; /* delete this index */
- }
-
- /* check for duplicate */
- r = red[x];
- g = green[x];
- b = blue[x];
- if (fast[r>>11][g>>11][b>>11]) /* if matches fast check */
- {
- /* then do a linear search */
- for (y = x+1; y < image->rgb.used; y++)
- {
- if (r == red[y] && g == green[y] && b == blue[y])
- break;
- }
- if (y < image->rgb.used) /* found match */
- {
- map[x] = y;
- dupcount++;
- continue; /* delete this index */
- }
- fast[r>>11][g>>11][b>>11] = 1;
- }
- /* will map to this index */
- map[x] = next_index;
- next_index++;
- }
-
- /* change the image pixels */
- pixptr = image->data;
- pixend = pixptr + (image->height * image->width);
- for(;pixptr < pixend; pixptr++)
- *pixptr = map[(*pixptr) & dmask];
-
- /* change the colormap */
- for (x = 0; x < image->rgb.used; x++)
- {
- if (!used[x])
- continue;
- red[map[x]] = red[x];
- green[map[x]] = green[x];
- blue[map[x]] = blue[x];
- }
- image->rgb.used = next_index;
-
- /* clean up */
- free(map);
- free(used);
-
- /*
- if (badcount)
- printf("%d out-of-range pixels, ", badcount);
-
- if (!unusedcount && !dupcount)
- printf("no improvment\n");
- else
- {
- if (dupcount)
- printf("%d duplicate%s and %d unused color%s removed...",
- dupcount, (dupcount == 1 ? "" : "s"),
- unusedcount, (unusedcount == 1 ? "" : "s"));
- printf("%d unique color%s\n",
- next_index, (next_index == 1 ? "" : "s"));
- }
- */
-
- image->rgb.compressed= TRUE; /* don't do it again */
-}
-
-
-
-
-Pixmap ximageToPixmap(Display *disp, Window parent, XImageInfo *ximageinfo)
-{
- Pixmap pixmap;
-
- pixmap = XCreatePixmap(disp, parent,
- ximageinfo->ximage->width, ximageinfo->ximage->height,
- ximageinfo->depth);
-
- ximageinfo->drawable = pixmap;
-
- sendXImage(ximageinfo, 0, 0, 0, 0,
- ximageinfo->ximage->width, ximageinfo->ximage->height);
- return(pixmap);
-}
-
-/* find the best pixmap depth supported by the server for a particular
- * visual and return that depth.
- *
- * this is complicated by R3's lack of XListPixmapFormats so we fake it
- * by looking at the structure ourselves.
- */
-
-static unsigned int bitsPerPixelAtDepth(Display *disp, int scrn,
- unsigned int depth)
-{
-#if defined(XlibSpecificationRelease) && (XlibSpecificationRelease >= 4)
- /* the way things are */
- XPixmapFormatValues *xf;
- int nxf, a;
-
- xf = XListPixmapFormats(disp, &nxf);
- for (a = 0; a < nxf; a++)
- {
- if (xf[a].depth == depth)
- {
- int bpp;
- bpp = xf[a].bits_per_pixel;
- XFree(xf);
- return (unsigned int) bpp;
- }
- }
- XFree(xf);
-#else /* the way things were (X11R3) */
- unsigned int a;
-
- for (a= 0; a < disp->nformats; a++)
- if (disp->pixmap_format[a].depth == depth)
- return(disp->pixmap_format[a].bits_per_pixel);
-#endif
-
- /* this should never happen; if it does, we're in trouble
- */
-
- fprintf(stderr, "bitsPerPixelAtDepth: Can't find pixmap depth info!\n");
- exit(1);
-}
-
-XImageInfo *imageToXImage(Display *disp, int scrn, Visual *visual,
- unsigned int ddepth, Image *image)
-{
- static XColor xcolor_private[NOFLASH_COLORS];
- static int colorcell_used[NOFLASH_COLORS];
- static Colormap global_cmap = 0;
- static Pixel *global_cmap_index;
- static int num_cmap_entries, free_cmap_entries;
- static private_cmap = FALSE;
- Pixel *redvalue, *greenvalue, *bluevalue;
- unsigned int a, c=0, x, y, linelen, dpixlen, dbits;
- XColor xcolor;
- XGCValues gcv;
- XImageInfo *ximageinfo;
-
- if (!global_cmap)
- {
- if (visual == DefaultVisual(disp, scrn))
- global_cmap = DefaultColormap(disp, scrn);
- else
- {
- global_cmap = XCreateColormap(disp, RootWindow(disp, scrn),
- visual, AllocNone);
- private_cmap = TRUE;
- }
- }
-
- xcolor.flags = DoRed | DoGreen | DoBlue;
- redvalue = greenvalue = bluevalue = NULL;
- ximageinfo = (XImageInfo *)lmalloc(sizeof(XImageInfo));
- ximageinfo->disp = disp;
- ximageinfo->scrn = scrn;
- ximageinfo->depth = 0;
- ximageinfo->drawable = None;
- ximageinfo->index = NULL;
- ximageinfo->rootimage = FALSE;
- ximageinfo->foreground = ximageinfo->background= 0;
- ximageinfo->gc = NULL;
- ximageinfo->ximage = NULL;
-
- switch (visual->class)
- {
- case TrueColor:
- case DirectColor:
- {
- Pixel pixval;
- unsigned int redcolors, greencolors, bluecolors;
- unsigned int redstep, greenstep, bluestep;
- unsigned int redbottom, greenbottom, bluebottom;
- unsigned int redtop, greentop, bluetop;
-
- redvalue = (Pixel *)lmalloc(sizeof(Pixel) * 256);
- greenvalue = (Pixel *)lmalloc(sizeof(Pixel) * 256);
- bluevalue = (Pixel *)lmalloc(sizeof(Pixel) * 256);
-
- ximageinfo->cmap = global_cmap;
-
- retry_direct: /* tag we hit if a DirectColor allocation fails on
- * default colormap */
-
- /* calculate number of distinct colors in each band
- */
-
- redcolors = greencolors = bluecolors = 1;
- for (pixval=1; pixval; pixval <<= 1)
- {
- if (pixval & visual->red_mask)
- redcolors <<= 1;
- if (pixval & visual->green_mask)
- greencolors <<= 1;
- if (pixval & visual->blue_mask)
- bluecolors <<= 1;
- }
-
- /* sanity check
- */
-
- if ((redcolors > visual->map_entries) ||
- (greencolors > visual->map_entries) ||
- (bluecolors > visual->map_entries))
- {
- fprintf(stderr, "Warning: inconsistency in color information (this may be ugly)\n");
- }
-
- redstep = 256 / redcolors;
- greenstep = 256 / greencolors;
- bluestep = 256 / bluecolors;
- redbottom = greenbottom = bluebottom = 0;
- redtop = greentop = bluetop = 0;
- for (a=0; a<visual->map_entries; a++)
- {
- if (redbottom < 256)
- redtop = redbottom + redstep;
- if (greenbottom < 256)
- greentop = greenbottom + greenstep;
- if (bluebottom < 256)
- bluetop = bluebottom + bluestep;
-
- xcolor.red = (redtop - 1) << 8;
- xcolor.green = (greentop - 1) << 8;
- xcolor.blue = (bluetop - 1) << 8;
- if (!XAllocColor(disp, ximageinfo->cmap, &xcolor))
- {
- /* if an allocation fails for a DirectColor default visual then
- * we should create a private colormap and try again.
- */
-
- if ((visual->class == DirectColor) &&
- (visual == DefaultVisual(disp, scrn)))
- {
- global_cmap = XCopyColormapAndFree(disp, global_cmap);
- ximageinfo->cmap = global_cmap;
- private_cmap = TRUE;
-
- goto retry_direct;
- }
-
- /* something completely unexpected happened
- */
-
- fprintf(stderr, "imageToXImage: XAllocColor failed on a TrueColor/Directcolor visual\n");
- free((byte *)redvalue);
- free((byte *)greenvalue);
- free((byte *)bluevalue);
- free((byte *)ximageinfo);
- return(NULL);
- }
-
- /* fill in pixel values for each band at this intensity
- */
-
- while ((redbottom < 256) && (redbottom < redtop))
- redvalue[redbottom++] = xcolor.pixel & visual->red_mask;
- while ((greenbottom < 256) && (greenbottom < greentop))
- greenvalue[greenbottom++] = xcolor.pixel & visual->green_mask;
- while ((bluebottom < 256) && (bluebottom < bluetop))
- bluevalue[bluebottom++] = xcolor.pixel & visual->blue_mask;
- }
- break;
- }
-
- case PseudoColor:
-
- ximageinfo->cmap = global_cmap;
- ximageinfo->index = (Pixel *)lmalloc(sizeof(Pixel) * image->rgb.used);
-
- for (a=0; a<image->rgb.used; a++)
- {
- XColor xcolor2;
- unsigned short mask;
- int color_found;
- int i;
-
- xcolor.red = *(image->rgb.red + a);
- xcolor.green = *(image->rgb.green + a);
- xcolor.blue = *(image->rgb.blue + a);
-
- /* look if this color already exists in our colormap */
- if (!XAllocColor(disp, ximageinfo->cmap, &xcolor))
- {
- if (!private_cmap)
- {
- /*
- printf("switching to private colormap...\n");
- */
-
- /* we just filled up the default colormap -- get a private one
- which contains all already allocated colors */
-
- global_cmap = XCopyColormapAndFree(disp, global_cmap);
- ximageinfo->cmap = global_cmap;
- private_cmap = TRUE;
-
- /* allocate the rest of the color cells read/write */
- global_cmap_index =
- (Pixel *)lmalloc(sizeof(Pixel) * NOFLASH_COLORS);
- for (i=0; i<NOFLASH_COLORS; i++)
- if (!XAllocColorCells(disp, global_cmap, FALSE, NULL, 0,
- global_cmap_index + i, 1))
- break;
- num_cmap_entries = free_cmap_entries = i;
-
- /*
- printf("We've got %d free colormap entries.\n", free_cmap_entries);
- */
-
- /* to minimize colormap flashing, copy default colors and try
- to keep them as near as possible to the old values */
-
- for(i=0; i<num_cmap_entries; i++)
- {
- xcolor2.pixel = *(global_cmap_index + i);
- XQueryColor(disp, DefaultColormap(disp, scrn), &xcolor2);
- XStoreColor(disp, global_cmap, &xcolor2);
- xcolor_private[xcolor2.pixel] = xcolor2;
- colorcell_used[xcolor2.pixel] = FALSE;
- }
-
- /* now we have the default colormap private: all colors we
- successfully allocated so far are read-only, which is okay,
- because we don't want to change them anymore -- if we need
- an existing color again, we get it by XAllocColor; all other
- colors are read/write and we can set them by XStoreColor,
- but we will try to overwrite those color cells with our new
- color which are as close as possible to our new color */
- }
-
- /* look for an existing default color close the one we want */
-
- mask = 0xf000;
- color_found = FALSE;
-
- while (!color_found)
- {
- for (i=num_cmap_entries-1; i>=0; i--)
- {
- xcolor2.pixel = *(global_cmap_index + i);
- xcolor2 = xcolor_private[xcolor2.pixel];
-
- if (colorcell_used[xcolor2.pixel])
- continue;
-
- if ((xcolor.red & mask) == (xcolor2.red & mask) &&
- (xcolor.green & mask) == (xcolor2.green & mask) &&
- (xcolor.blue & mask) == (xcolor2.blue & mask))
- {
- /*
- printf("replacing color cell %ld with a close color\n",
- xcolor2.pixel);
- */
- color_found = TRUE;
- break;
- }
- }
-
- if (mask == 0x0000)
- break;
-
- mask = (mask << 1) & 0xffff;
- }
-
- if (!color_found) /* no more free color cells */
- {
- printf("Sorry, cannot allocate enough colors!\n");
- exit(0);
- }
-
- xcolor.pixel = xcolor2.pixel;
- xcolor_private[xcolor.pixel] = xcolor;
- colorcell_used[xcolor.pixel] = TRUE;
- XStoreColor(disp, ximageinfo->cmap, &xcolor);
- free_cmap_entries--;
- }
-
- *(ximageinfo->index + a) = xcolor.pixel;
- }
-
- /*
- printf("still %d free colormap entries\n", free_cmap_entries);
- */
-
- ximageinfo->no = a; /* number of pixels allocated for this image */
- break;
-
- default:
- printf("Sorry, only DirectColor, TrueColor and PseudoColor supported\n");
- exit(0);
- break;
- }
-
- /* create an XImage and related colormap based on the image type
- * we have.
- */
-
- /*
- printf(" Building XImage...");
- fflush(stdout);
- */
-
- switch (image->type)
- {
- case IBITMAP:
- {
- byte *data;
-
- /* we copy the data to be more consistent
- */
-
- linelen = ((image->width + 7) / 8);
- data= lmalloc(linelen * image->height);
-
- memcpy((char *)data, (char *)image->data, linelen * image->height);
-
- gcv.function= GXcopy;
- ximageinfo->ximage= XCreateImage(disp, visual, 1, XYBitmap,
- 0, (char *)data, image->width, image->height,
- 8, linelen);
-
- /* use this if you want to use the bitmap as a mask */
- ximageinfo->depth = image->depth;
-
- if(visual->class == DirectColor || visual->class == TrueColor)
- {
- Pixel pixval;
- dbits= bitsPerPixelAtDepth(disp, scrn, ddepth);
- dpixlen= (dbits + 7) / 8;
- pixval= redvalue[image->rgb.red[0] >> 8] |
- greenvalue[image->rgb.green[0] >> 8] |
- bluevalue[image->rgb.blue[0] >> 8];
- ximageinfo->background = pixval;
- pixval= redvalue[image->rgb.red[1] >> 8] |
- greenvalue[image->rgb.green[1] >> 8] |
- bluevalue[image->rgb.blue[1] >> 8];
- ximageinfo->foreground = pixval;
- }
- else /* Not Direct or True Color */
- {
- ximageinfo->foreground = BlackPixel(disp,scrn);
- ximageinfo->background = WhitePixel(disp,scrn);
- }
- ximageinfo->ximage->bitmap_bit_order= MSBFirst;
- ximageinfo->ximage->byte_order= MSBFirst;
-
- break;
- }
-
- case IRGB:
- {
- /* modify image data to match visual and colormap
- */
-
- byte *data, *destptr, *srcptr;
-
- dbits = bitsPerPixelAtDepth(disp, scrn, ddepth); /* bits per pixel */
- dpixlen = (dbits + 7) / 8; /* bytes per pixel */
-
- ximageinfo->ximage = XCreateImage(disp, visual, ddepth, ZPixmap, 0,
- NULL, image->width, image->height,
- 8, image->width * dpixlen);
-
- data = (byte *)lmalloc(image->width * image->height * dpixlen);
- ximageinfo->depth = ddepth;
- ximageinfo->ximage->data = (char *)data;
- ximageinfo->ximage->byte_order = MSBFirst;
- srcptr = image->data;
- destptr = data;
-
- switch (visual->class)
- {
- case DirectColor:
- case TrueColor:
- {
- Pixel pixval;
-
- for (y=0; y<image->height; y++)
- {
- for (x=0; x<image->width; x++)
- {
- pixval = memToVal(srcptr, 1);
- pixval = redvalue[image->rgb.red[pixval] >> 8] |
- greenvalue[image->rgb.green[pixval] >> 8] |
- bluevalue[image->rgb.blue[pixval] >> 8];
- valToMem(pixval, destptr, dpixlen);
- srcptr += 1;
- destptr += dpixlen;
- }
- }
- break;
- }
-
- default:
- {
- if (dpixlen == 1) /* most common */
- {
- for (y=0; y<image->height; y++)
- {
- for (x=0; x<image->width; x++)
- {
- *destptr = ximageinfo->index[c + *srcptr];
- srcptr++;
- destptr++;
- }
- }
- }
- else /* less common */
- {
- for (y=0; y<image->height; y++)
- {
- for (x=0; x<image->width; x++)
- {
- register unsigned long temp;
- temp = memToVal(srcptr, 1);
- valToMem(ximageinfo->index[c + temp], destptr, dpixlen);
- srcptr += 1;
- destptr += dpixlen;
- }
- }
- }
- }
- break;
- }
- }
- }
-
- /*
- printf("done\n");
- */
-
- if (redvalue)
- {
- free((byte *)redvalue);
- free((byte *)greenvalue);
- free((byte *)bluevalue);
- }
-
- return(ximageinfo);
-}
-
-/* Given an XImage and a drawable, move a rectangle from the Ximage
- * to the drawable.
- */
-
-void sendXImage(XImageInfo *ximageinfo,
- int src_x, int src_y, int dst_x, int dst_y,
- unsigned int w, unsigned int h)
-{
- XGCValues gcv;
-
- /* build and cache the GC
- */
-
- if (!ximageinfo->gc)
- {
- gcv.function = GXcopy;
- if (ximageinfo->ximage->depth == 1)
- {
- gcv.foreground = ximageinfo->foreground;
- gcv.background = ximageinfo->background;
- ximageinfo->gc = XCreateGC(ximageinfo->disp, ximageinfo->drawable,
- GCFunction | GCForeground | GCBackground,
- &gcv);
- }
- else
- ximageinfo->gc = XCreateGC(ximageinfo->disp, ximageinfo->drawable,
- GCFunction, &gcv);
- }
-
- XPutImage(ximageinfo->disp, ximageinfo->drawable, ximageinfo->gc,
- ximageinfo->ximage, src_x, src_y, dst_x, dst_y, w, h);
-}
-
-/* free up anything cached in the local Ximage structure.
- */
-
-void freeXImage(Image *image, XImageInfo *ximageinfo)
-{
- if (ximageinfo->index != NULL) /* if we allocated colors */
- {
- if (ximageinfo->no > 0 && !ximageinfo->rootimage) /* don't free root colors */
- XFreeColors(ximageinfo->disp, ximageinfo->cmap, ximageinfo->index, ximageinfo->no, 0);
- free(ximageinfo->index);
- }
- if (ximageinfo->gc)
- XFreeGC(ximageinfo->disp, ximageinfo->gc);
- free((byte *)ximageinfo->ximage->data);
- ximageinfo->ximage->data= NULL;
- XDestroyImage(ximageinfo->ximage);
- free((byte *)ximageinfo);
- /* should we free private color map to ??? */
-}
projects / rocksndiamonds.git / blobdiff