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- /* Copyright 1990,91 GROUPE BULL -- See license conditions in file COPYRIGHT */
- /*****************************************************************************\
- * create.c: *
- * *
- * XPM library *
- * Create an X image and possibly its related shape mask *
- * from the given xpmInternAttrib. *
- * *
- * Developed by Arnaud Le Hors *
- \*****************************************************************************/
-
- #include "xpmP.h"
- #ifdef VMS
- #include "sys$library:ctype.h"
- #else
- #include <ctype.h>
- #endif
-
- LFUNC(xpmVisualType, int, (Visual *visual));
-
- LFUNC(SetColor, int, (Display * display, Colormap colormap, char *colorname,
- unsigned int color_index, Pixel * image_pixel,
- Pixel * mask_pixel, unsigned int * mask_pixel_index,
- Pixel ** pixels, unsigned int * npixels));
-
- LFUNC(CreateColors, int, (Display *display, XpmAttributes *attributes,
- char ***ct, unsigned int ncolors, Pixel *ip,
- Pixel *mp, unsigned int *mask_pixel, Pixel **pixels,
- unsigned int *npixels));
-
- LFUNC(CreateXImage, int, (Display * display, Visual * visual,
- unsigned int depth, unsigned int width,
- unsigned int height, XImage ** image_return));
-
- LFUNC(SetImagePixels, int, (XImage * image, unsigned int width,
- unsigned int height, unsigned int *pixelindex,
- Pixel * pixels));
-
- LFUNC(SetImagePixels32, int, (XImage * image, unsigned int width,
- unsigned int height, unsigned int *pixelindex,
- Pixel * pixels));
-
- LFUNC(SetImagePixels16, int, (XImage * image, unsigned int width,
- unsigned int height, unsigned int *pixelindex,
- Pixel * pixels));
-
- LFUNC(SetImagePixels8, int, (XImage * image, unsigned int width,
- unsigned int height, unsigned int *pixelindex,
- Pixel * pixels));
-
- LFUNC(SetImagePixels1, int, (XImage * image, unsigned int width,
- unsigned int height, unsigned int *pixelindex,
- Pixel * pixels));
-
- #ifdef NEED_STRCASECMP
-
- LFUNC(strcasecmp, int, (char *s1, char *s2));
-
- /*
- * in case strcasecmp is not provided by the system here is one
- * which does the trick
- */
- static int
- strcasecmp(s1, s2)
- register char *s1, *s2;
- {
- register int c1, c2;
-
- while (*s1 && *s2) {
- c1 = isupper(*s1) ? tolower(*s1) : *s1;
- c2 = isupper(*s2) ? tolower(*s2) : *s2;
- if (c1 != c2)
- return (1);
- s1++;
- s2++;
- }
- if (*s1 || *s2)
- return (1);
- return (0);
- }
-
- #endif
-
- /*
- * return the default color key related to the given visual
- */
- static int
- xpmVisualType(visual)
- Visual *visual;
- {
- switch (visual->class) {
- case StaticGray:
- case GrayScale:
- switch (visual->map_entries) {
- case 2:
- return (MONO);
- case 4:
- return (GRAY4);
- default:
- return (GRAY);
- }
- default:
- return (COLOR);
- }
- }
-
- /*
- * set the color pixel related to the given colorname,
- * return 0 if success, 1 otherwise.
- */
-
- static int
- SetColor(display, colormap, colorname, color_index,
- image_pixel, mask_pixel, mask_pixel_index,
- pixels, npixels)
- Display *display;
- Colormap colormap;
- char *colorname;
- unsigned int color_index;
- Pixel *image_pixel, *mask_pixel;
- unsigned int *mask_pixel_index;
- Pixel **pixels;
- unsigned int *npixels;
- {
- XColor xcolor;
-
- if (strcasecmp(colorname, TRANSPARENT_COLOR)) {
- if (!XParseColor(display, colormap, colorname, &xcolor)
- || (!XAllocColor(display, colormap, &xcolor)))
- return (1);
- *image_pixel = xcolor.pixel;
- *mask_pixel = 1;
- (*pixels)[*npixels] = xcolor.pixel;
- (*npixels)++;
- } else {
- *image_pixel = 0;
- *mask_pixel = 0;
- *mask_pixel_index = color_index;/* store the color table index */
- }
- return (0);
- }
-
- static int
- CreateColors(display, attributes, ct, ncolors,
- ip, mp, mask_pixel, pixels, npixels)
- Display *display;
- XpmAttributes *attributes;
- char ***ct;
- unsigned int ncolors;
- Pixel *ip;
- Pixel *mp;
- unsigned int *mask_pixel; /* mask pixel index */
- Pixel **pixels; /* allocated pixels */
- unsigned int *npixels; /* number of allocated pixels */
- {
- /* variables stored in the XpmAttributes structure */
- Visual *visual;
- Colormap colormap;
- XpmColorSymbol *colorsymbols;
- unsigned int numsymbols;
-
- char *colorname;
- unsigned int a, b, l;
- Boolean pixel_defined;
- unsigned int key;
- XpmColorSymbol *cs;
- char **cts;
- unsigned int ErrorStatus = XpmSuccess;
- char *s;
-
- /*
- * retrieve information from the XpmAttributes
- */
- if (attributes && attributes->valuemask & XpmColorSymbols) {
- colorsymbols = attributes->colorsymbols;
- numsymbols = attributes->numsymbols;
- } else
- numsymbols = 0;
-
- if (attributes && attributes->valuemask & XpmVisual)
- visual = attributes->visual;
- else
- visual = DefaultVisual(display, DefaultScreen(display));
-
- if (attributes && attributes->valuemask & XpmColormap)
- colormap = attributes->colormap;
- else
- colormap = DefaultColormap(display, DefaultScreen(display));
-
- key = xpmVisualType(visual);
- for (a = 0; a < ncolors; a++, ct++, ip++, mp++) {
- colorname = NULL;
- pixel_defined = False;
- cts = *ct;
-
- /*
- * look for a defined symbol
- */
- if (numsymbols && cts[1]) {
- s = cts[1];
- for (l = 0, cs = colorsymbols; l < numsymbols; l++, cs++)
- if (!strcmp(cs->name, s))
- break;
- if (l != numsymbols) {
- if (cs->value)
- colorname = cs->value;
- else
- pixel_defined = True;
- }
- }
- if (!pixel_defined) { /* pixel not given as symbol value */
- if (colorname) { /* colorname given as symbol value */
- if (!SetColor(display, colormap, colorname, a, ip, mp,
- mask_pixel, pixels, npixels))
- pixel_defined = True;
- else
- ErrorStatus = XpmColorError;
- }
- b = key;
- while (!pixel_defined && b > 1) {
- if (cts[b]) {
- if (!SetColor(display, colormap, cts[b], a, ip, mp,
- mask_pixel, pixels, npixels)) {
- pixel_defined = True;
- break;
- } else
- ErrorStatus = XpmColorError;
- }
- b--;
- }
- b = key + 1;
- while (!pixel_defined && b < NKEYS + 1) {
- if (cts[b]) {
- if (!SetColor(display, colormap, cts[b], a, ip, mp,
- mask_pixel, pixels, npixels)) {
- pixel_defined = True;
- break;
- } else
- ErrorStatus = XpmColorError;
- }
- b++;
- }
- if (!pixel_defined)
- return (XpmColorFailed);
- } else {
- *ip = colorsymbols[l].pixel;
- *mp = 1;
- }
- }
- return (ErrorStatus);
- }
-
- /* function call in case of error, frees only locally allocated variables */
- #undef RETURN
- #ifdef Debug
- /*
- * XDestroyImage free the image data but mnemosyne don't know about it
- * so I free them by hand to avoid mnemalyse report it as lost data.
- */
- #define RETURN(status) \
- { if (image) { \
- free(image->data); \
- XDestroyImage(image); } \
- if (shapeimage) { \
- free(shapeimage->data); \
- XDestroyImage(shapeimage); } \
- if (image_pixels) free(image_pixels); \
- if (mask_pixels) free(mask_pixels); \
- if (npixels) XFreeColors(display, colormap, pixels, npixels, 0); \
- if (pixels) free(pixels); \
- return (status); }
-
- #else
-
- #define RETURN(status) \
- { if (image) XDestroyImage(image); \
- if (shapeimage) XDestroyImage(shapeimage); \
- if (image_pixels) free(image_pixels); \
- if (mask_pixels) free(mask_pixels); \
- if (npixels) XFreeColors(display, colormap, pixels, npixels, 0); \
- if (pixels) free(pixels); \
- return (status); }
-
- #endif
-
- xpmCreateImage(display, attrib, image_return, shapeimage_return, attributes)
- Display *display;
- xpmInternAttrib *attrib;
- XImage **image_return;
- XImage **shapeimage_return;
- XpmAttributes *attributes;
- {
- /* variables stored in the XpmAttributes structure */
- Visual *visual;
- Colormap colormap;
- unsigned int depth;
-
- /* variables to return */
- XImage *image = NULL;
- XImage *shapeimage = NULL;
- unsigned int mask_pixel;
- unsigned int ErrorStatus;
-
- /* calculation variables */
- Pixel *image_pixels = NULL;
- Pixel *mask_pixels = NULL;
- Pixel *pixels = NULL; /* allocated pixels */
- unsigned int npixels = 0; /* number of allocated pixels */
-
- /*
- * retrieve information from the XpmAttributes
- */
- if (attributes && attributes->valuemask & XpmVisual)
- visual = attributes->visual;
- else
- visual = DefaultVisual(display, DefaultScreen(display));
-
- if (attributes && attributes->valuemask & XpmColormap)
- colormap = attributes->colormap;
- else
- colormap = DefaultColormap(display, DefaultScreen(display));
-
- if (attributes && attributes->valuemask & XpmDepth)
- depth = attributes->depth;
- else
- depth = DefaultDepth(display, DefaultScreen(display));
-
- ErrorStatus = XpmSuccess;
-
- /*
- * malloc pixels index tables
- */
-
- image_pixels = (Pixel *) malloc(sizeof(Pixel) * attrib->ncolors);
- if (!image_pixels)
- return(XpmNoMemory);
-
- mask_pixels = (Pixel *) malloc(sizeof(Pixel) * attrib->ncolors);
- if (!mask_pixels)
- RETURN(ErrorStatus);
-
- mask_pixel = UNDEF_PIXEL;
-
- /* maximum of allocated pixels will be the number of colors */
- pixels = (Pixel *) malloc(sizeof(Pixel) * attrib->ncolors);
- if (!pixels)
- RETURN(ErrorStatus);
-
- /*
- * get pixel colors, store them in index tables
- */
-
- ErrorStatus = CreateColors(display, attributes, attrib->colorTable,
- attrib->ncolors, image_pixels, mask_pixels,
- &mask_pixel, &pixels, &npixels);
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
-
- /*
- * create the image
- */
- if (image_return) {
- ErrorStatus = CreateXImage(display, visual, depth,
- attrib->width, attrib->height, &image);
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
-
- /*
- * set the image data
- *
- * In case depth is 1 or bits_per_pixel is 4, 6, 8, 24 or 32 use
- * optimized functions, otherwise use slower but sure general one.
- *
- */
-
- if (image->depth == 1)
- SetImagePixels1(image, attrib->width, attrib->height,
- attrib->pixelindex, image_pixels);
- else if (image->bits_per_pixel == 8)
- SetImagePixels8(image, attrib->width, attrib->height,
- attrib->pixelindex, image_pixels);
- else if (image->bits_per_pixel == 16)
- SetImagePixels16(image, attrib->width, attrib->height,
- attrib->pixelindex, image_pixels);
- else if (image->bits_per_pixel == 32)
- SetImagePixels32(image, attrib->width, attrib->height,
- attrib->pixelindex, image_pixels);
- else
- SetImagePixels(image, attrib->width, attrib->height,
- attrib->pixelindex, image_pixels);
- }
-
- /*
- * create the shape mask image
- */
- if (mask_pixel != UNDEF_PIXEL && shapeimage_return) {
- ErrorStatus = CreateXImage(display, visual, 1, attrib->width,
- attrib->height, &shapeimage);
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
-
- SetImagePixels1(shapeimage, attrib->width, attrib->height,
- attrib->pixelindex, mask_pixels);
- }
- free(mask_pixels);
- free(pixels);
-
- /*
- * if requested store used pixels in the XpmAttributes structure
- */
- if (attributes &&
- (attributes->valuemask & XpmReturnInfos
- || attributes->valuemask & XpmReturnPixels)) {
- if (mask_pixel != UNDEF_PIXEL) {
- Pixel *pixels, *p1, *p2;
- unsigned int a;
-
- attributes->npixels = attrib->ncolors - 1;
- pixels = (Pixel *) malloc(sizeof(Pixel) * attributes->npixels);
- if (pixels) {
- p1 = image_pixels;
- p2 = pixels;
- for (a = 0; a < attrib->ncolors; a++, p1++)
- if (a != mask_pixel)
- *p2++ = *p1;
- attributes->pixels = pixels;
- } else {
- /* if error just say we can't return requested data */
- attributes->valuemask &= ~XpmReturnPixels;
- attributes->valuemask &= ~XpmReturnInfos;
- attributes->pixels = NULL;
- attributes->npixels = 0;
- }
- free(image_pixels);
- } else {
- attributes->pixels = image_pixels;
- attributes->npixels = attrib->ncolors;
- }
- attributes->mask_pixel = mask_pixel;
- } else
- free(image_pixels);
-
-
- /*
- * return created images
- */
- if (image_return)
- *image_return = image;
-
- if (shapeimage_return)
- *shapeimage_return = shapeimage;
-
- return (ErrorStatus);
- }
-
-
- /*
- * Create an XImage
- */
- static int
- CreateXImage(display, visual, depth, width, height, image_return)
- Display *display;
- Visual *visual;
- unsigned int depth;
- unsigned int width;
- unsigned int height;
- XImage **image_return;
- {
- int bitmap_pad;
-
- /* first get bitmap_pad */
- if (depth > 16)
- bitmap_pad = 32;
- else if (depth > 8)
- bitmap_pad = 16;
- else
- bitmap_pad = 8;
-
- /* then create the XImage with data = NULL and bytes_per_line = 0 */
-
- *image_return = XCreateImage(display, visual, depth, ZPixmap, 0, 0,
- width, height, bitmap_pad, 0);
- if (!*image_return)
- return (XpmNoMemory);
-
- /* now that bytes_per_line must have been set properly alloc data */
-
- (*image_return)->data =
- (char *) malloc((*image_return)->bytes_per_line * height);
-
- if (!(*image_return)->data) {
- XDestroyImage(*image_return);
- *image_return = NULL;
- return (XpmNoMemory);
- }
- return (XpmSuccess);
- }
-
-
- /*
- * The functions below are written from X11R5 MIT's code (XImUtil.c)
- *
- * The idea is to have faster functions than the standard XPutPixel function
- * to build the image data. Indeed we can speed up things by suppressing tests
- * performed for each pixel. We do the same tests but at the image level.
- * We also assume that we use only ZPixmap images with null offsets.
- */
-
- LFUNC(_putbits, int, (register char *src, int dstoffset,
- register int numbits, register char *dst));
-
- LFUNC(_XReverse_Bytes, int, (register unsigned char *bpt, register int nb));
-
- static unsigned char Const _reverse_byte[0x100] = {
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
- 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
- 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
- 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
- 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
- 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
- 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
- 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
- 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
- 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
- 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
- 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
- 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
- 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
- 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
- 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
- };
-
- static int
- _XReverse_Bytes(bpt, nb)
- register unsigned char *bpt;
- register int nb;
- {
- do {
- *bpt = _reverse_byte[*bpt];
- bpt++;
- } while (--nb > 0);
- return;
- }
-
-
- int
- xpm_xynormalizeimagebits(bp, img)
- register unsigned char *bp;
- register XImage *img;
- {
- register unsigned char c;
-
- if (img->byte_order != img->bitmap_bit_order) {
- switch (img->bitmap_unit) {
-
- case 16:
- c = *bp;
- *bp = *(bp + 1);
- *(bp + 1) = c;
- break;
-
- case 32:
- c = *(bp + 3);
- *(bp + 3) = *bp;
- *bp = c;
- c = *(bp + 2);
- *(bp + 2) = *(bp + 1);
- *(bp + 1) = c;
- break;
- }
- }
- if (img->bitmap_bit_order == MSBFirst)
- _XReverse_Bytes(bp, img->bitmap_unit >> 3);
- }
-
- int
- xpm_znormalizeimagebits(bp, img)
- register unsigned char *bp;
- register XImage *img;
- {
- register unsigned char c;
-
- switch (img->bits_per_pixel) {
-
- case 4:
- *bp = ((*bp >> 4) & 0xF) | ((*bp << 4) & ~0xF);
- break;
-
- case 16:
- c = *bp;
- *bp = *(bp + 1);
- *(bp + 1) = c;
- break;
-
- case 24:
- c = *(bp + 2);
- *(bp + 2) = *bp;
- *bp = c;
- break;
-
- case 32:
- c = *(bp + 3);
- *(bp + 3) = *bp;
- *bp = c;
- c = *(bp + 2);
- *(bp + 2) = *(bp + 1);
- *(bp + 1) = c;
- break;
- }
- }
-
- static unsigned char Const _lomask[0x09] = {
- 0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff};
- static unsigned char Const _himask[0x09] = {
- 0xff, 0xfe, 0xfc, 0xf8, 0xf0, 0xe0, 0xc0, 0x80, 0x00};
-
- static
- _putbits(src, dstoffset, numbits, dst)
- register char *src; /* address of source bit string */
- int dstoffset; /* bit offset into destination;
- * range is 0-31 */
- register int numbits; /* number of bits to copy to
- * destination */
- register char *dst; /* address of destination bit string */
- {
- register unsigned char chlo, chhi;
- int hibits;
-
- dst = dst + (dstoffset >> 3);
- dstoffset = dstoffset & 7;
- hibits = 8 - dstoffset;
- chlo = *dst & _lomask[dstoffset];
- for (;;) {
- chhi = (*src << dstoffset) & _himask[dstoffset];
- if (numbits <= hibits) {
- chhi = chhi & _lomask[dstoffset + numbits];
- *dst = (*dst & _himask[dstoffset + numbits]) | chlo | chhi;
- break;
- }
- *dst = chhi | chlo;
- dst++;
- numbits = numbits - hibits;
- chlo = (unsigned char) (*src & _himask[hibits]) >> hibits;
- src++;
- if (numbits <= dstoffset) {
- chlo = chlo & _lomask[numbits];
- *dst = (*dst & _himask[numbits]) | chlo;
- break;
- }
- numbits = numbits - dstoffset;
- }
- }
-
- /*
- * Default method to write pixels into a Z image data structure.
- * The algorithm used is:
- *
- * copy the destination bitmap_unit or Zpixel to temp
- * normalize temp if needed
- * copy the pixel bits into the temp
- * renormalize temp if needed
- * copy the temp back into the destination image data
- */
-
- static int
- SetImagePixels(image, width, height, pixelindex, pixels)
- XImage *image;
- unsigned int width;
- unsigned int height;
- unsigned int *pixelindex;
- Pixel *pixels;
- {
- register char *src;
- register char *dst;
- register unsigned int *iptr;
- register int x, y, i;
- register char *data;
- Pixel pixel, px;
- int nbytes, depth, ibu, ibpp;
-
- data = image->data;
- iptr = pixelindex;
- depth = image->depth;
- if (image->depth == 1) {
- ibu = image->bitmap_unit;
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- pixel = pixels[*iptr];
- for (i = 0, px = pixel;
- i < sizeof(unsigned long); i++, px >>= 8)
- ((unsigned char *) &pixel)[i] = px;
- src = &data[XYINDEX(x, y, image)];
- dst = (char *) &px;
- px = 0;
- nbytes = ibu >> 3;
- for (i = nbytes; --i >= 0;)
- *dst++ = *src++;
- XYNORMALIZE(&px, image);
- _putbits((char *) &pixel, (x % ibu), 1, (char *) &px);
- XYNORMALIZE(&px, image);
- src = (char *) &px;
- dst = &data[XYINDEX(x, y, image)];
- for (i = nbytes; --i >= 0;)
- *dst++ = *src++;
- }
- } else {
- ibpp = image->bits_per_pixel;
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- pixel = pixels[*iptr];
- if (depth == 4)
- pixel &= 0xf;
- for (i = 0, px = pixel;
- i < sizeof(unsigned long); i++, px >>= 8)
- ((unsigned char *) &pixel)[i] = px;
- src = &data[ZINDEX(x, y, image)];
- dst = (char *) &px;
- px = 0;
- nbytes = (ibpp + 7) >> 3;
- for (i = nbytes; --i >= 0;)
- *dst++ = *src++;
- ZNORMALIZE(&px, image);
- _putbits((char *) &pixel, (x * ibpp) & 7, ibpp, (char *) &px);
- ZNORMALIZE(&px, image);
- src = (char *) &px;
- dst = &data[ZINDEX(x, y, image)];
- for (i = nbytes; --i >= 0;)
- *dst++ = *src++;
- }
- }
- }
-
- /*
- * write pixels into a 32-bits Z image data structure
- */
-
- #ifndef WORD64
- static unsigned long byteorderpixel = MSBFirst << 24;
-
- #endif
-
- static int
- SetImagePixels32(image, width, height, pixelindex, pixels)
- XImage *image;
- unsigned int width;
- unsigned int height;
- unsigned int *pixelindex;
- Pixel *pixels;
- {
- register unsigned char *addr;
- register unsigned char *data;
- register unsigned int *iptr;
- register int x, y;
- Pixel pixel;
-
- data = (unsigned char *) image->data;
- iptr = pixelindex;
- #ifndef WORD64
- if (*((char *) &byteorderpixel) == image->byte_order) {
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- addr = &data[ZINDEX32(x, y, image)];
- *((unsigned long *)addr) = pixels[*iptr];
- }
- } else
- #endif
- if (image->byte_order == MSBFirst)
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- addr = &data[ZINDEX32(x, y, image)];
- pixel = pixels[*iptr];
- addr[0] = pixel >> 24;
- addr[1] = pixel >> 16;
- addr[2] = pixel >> 8;
- addr[3] = pixel;
- }
- else
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- addr = &data[ZINDEX32(x, y, image)];
- pixel = pixels[*iptr];
- addr[0] = pixel;
- addr[1] = pixel >> 8;
- addr[2] = pixel >> 16;
- addr[3] = pixel >> 24;
- }
- }
-
- /*
- * write pixels into a 16-bits Z image data structure
- */
-
- static int
- SetImagePixels16(image, width, height, pixelindex, pixels)
- XImage *image;
- unsigned int width;
- unsigned int height;
- unsigned int *pixelindex;
- Pixel *pixels;
- {
- register unsigned char *addr;
- register unsigned char *data;
- register unsigned int *iptr;
- register int x, y;
-
- data = (unsigned char *) image->data;
- iptr = pixelindex;
- if (image->byte_order == MSBFirst)
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- addr = &data[ZINDEX16(x, y, image)];
- addr[0] = pixels[*iptr] >> 8;
- addr[1] = pixels[*iptr];
- }
- else
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- addr = &data[ZINDEX16(x, y, image)];
- addr[0] = pixels[*iptr];
- addr[1] = pixels[*iptr] >> 8;
- }
- }
-
- /*
- * write pixels into a 8-bits Z image data structure
- */
-
- static int
- SetImagePixels8(image, width, height, pixelindex, pixels)
- XImage *image;
- unsigned int width;
- unsigned int height;
- unsigned int *pixelindex;
- Pixel *pixels;
- {
- register char *data;
- register unsigned int *iptr;
- register int x, y;
-
- data = image->data;
- iptr = pixelindex;
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++)
- data[ZINDEX8(x, y, image)] = pixels[*iptr];
- }
-
- /*
- * write pixels into a 1-bit depth image data structure and **offset null**
- */
-
- static int
- SetImagePixels1(image, width, height, pixelindex, pixels)
- XImage *image;
- unsigned int width;
- unsigned int height;
- unsigned int *pixelindex;
- Pixel *pixels;
- {
- register unsigned int *iptr;
- register int x, y;
- register char *data;
-
- if (image->byte_order != image->bitmap_bit_order)
- SetImagePixels(image, width, height, pixelindex, pixels);
- else {
- data = image->data;
- iptr = pixelindex;
- if (image->bitmap_bit_order == MSBFirst)
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- if (pixels[*iptr] & 1)
- data[ZINDEX1(x, y, image)] |= 0x80 >> (x & 7);
- else
- data[ZINDEX1(x, y, image)] &= ~(0x80 >> (x & 7));
- }
- else
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- if (pixels[*iptr] & 1)
- data[ZINDEX1(x, y, image)] |= 1 << (x & 7);
- else
- data[ZINDEX1(x, y, image)] &= ~(1 << x & 7);
- }
- }
- }
-