diff options
Diffstat (limited to 'libXpm/src/scan.c')
| -rw-r--r-- | libXpm/src/scan.c | 2048 |
1 files changed, 1024 insertions, 1024 deletions
diff --git a/libXpm/src/scan.c b/libXpm/src/scan.c index 13c30759b..d2780a1ee 100644 --- a/libXpm/src/scan.c +++ b/libXpm/src/scan.c @@ -1,1024 +1,1024 @@ -/*
- * Copyright (C) 1989-95 GROUPE BULL
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the name of GROUPE BULL shall not be
- * used in advertising or otherwise to promote the sale, use or other dealings
- * in this Software without prior written authorization from GROUPE BULL.
- */
-
-/*****************************************************************************\
-* scan.c: *
-* *
-* XPM library *
-* Scanning utility for XPM file format *
-* *
-* Developed by Arnaud Le Hors *
-\*****************************************************************************/
-
-/*
- * The code related to FOR_MSW has been added by
- * HeDu (hedu@cul-ipn.uni-kiel.de) 4/94
- */
-
-/*
- * The code related to AMIGA has been added by
- * Lorens Younes (d93-hyo@nada.kth.se) 4/96
- */
-
-/* October 2004, source code review by Thomas Biege <thomas@suse.de> */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "XpmI.h"
-
-#define MAXPRINTABLE 92 /* number of printable ascii chars
- * minus \ and " for string compat
- * and ? to avoid ANSI trigraphs. */
-
-static char *printable =
-" .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjklzxcvbnmMNBVCZ\
-ASDFGHJKLPIUYTREWQ!~^/()_`'][{}|";
-
-/*
- * printable begin with a space, so in most case, due to my algorithm, when
- * the number of different colors is less than MAXPRINTABLE, it will give a
- * char follow by "nothing" (a space) in the readable xpm file
- */
-
-
-typedef struct {
- Pixel *pixels;
- unsigned int *pixelindex;
- unsigned int size;
- unsigned int ncolors;
- unsigned int mask_pixel; /* whether there is or not */
-} PixelsMap;
-
-LFUNC(storePixel, int, (Pixel pixel, PixelsMap *pmap,
- unsigned int *index_return));
-
-LFUNC(storeMaskPixel, int, (Pixel pixel, PixelsMap *pmap,
- unsigned int *index_return));
-
-typedef int (*storeFuncPtr)(Pixel pixel, PixelsMap *pmap,
- unsigned int *index_return);
-
-#ifndef FOR_MSW
-# ifndef AMIGA
-LFUNC(GetImagePixels, int, (XImage *image, unsigned int width,
- unsigned int height, PixelsMap *pmap));
-
-LFUNC(GetImagePixels32, int, (XImage *image, unsigned int width,
- unsigned int height, PixelsMap *pmap));
-
-LFUNC(GetImagePixels16, int, (XImage *image, unsigned int width,
- unsigned int height, PixelsMap *pmap));
-
-LFUNC(GetImagePixels8, int, (XImage *image, unsigned int width,
- unsigned int height, PixelsMap *pmap));
-
-LFUNC(GetImagePixels1, int, (XImage *image, unsigned int width,
- unsigned int height, PixelsMap *pmap,
- storeFuncPtr storeFunc));
-# else /* AMIGA */
-LFUNC(AGetImagePixels, int, (XImage *image, unsigned int width,
- unsigned int height, PixelsMap *pmap,
- storeFuncPtr storeFunc));
-# endif/* AMIGA */
-#else /* ndef FOR_MSW */
-LFUNC(MSWGetImagePixels, int, (Display *d, XImage *image, unsigned int width,
- unsigned int height, PixelsMap *pmap,
- storeFuncPtr storeFunc));
-#endif
-LFUNC(ScanTransparentColor, int, (XpmColor *color, unsigned int cpp,
- XpmAttributes *attributes));
-
-LFUNC(ScanOtherColors, int, (Display *display, XpmColor *colors,
- unsigned int ncolors,
- Pixel *pixels, unsigned int mask,
- unsigned int cpp, XpmAttributes *attributes));
-
-/*
- * This function stores the given pixel in the given arrays which are grown
- * if not large enough.
- */
-static int
-storePixel(
- Pixel pixel,
- PixelsMap *pmap,
- unsigned int *index_return)
-{
- unsigned int i;
- Pixel *p;
- unsigned int ncolors;
-
- if (*index_return) { /* this is a transparent pixel! */
- *index_return = 0;
- return 0;
- }
- ncolors = pmap->ncolors;
- p = pmap->pixels + pmap->mask_pixel;
- for (i = pmap->mask_pixel; i < ncolors; i++, p++)
- if (*p == pixel)
- break;
- if (i == ncolors) {
- if (ncolors >= pmap->size) {
- pmap->size *= 2;
- p = (Pixel *) XpmRealloc(pmap->pixels, sizeof(Pixel) * pmap->size);
- if (!p)
- return (1);
- pmap->pixels = p;
-
- }
- (pmap->pixels)[ncolors] = pixel;
- pmap->ncolors++;
- }
- *index_return = i;
- return 0;
-}
-
-static int
-storeMaskPixel(
- Pixel pixel,
- PixelsMap *pmap,
- unsigned int *index_return)
-{
- if (!pixel) {
- if (!pmap->ncolors) {
- pmap->ncolors = 1;
- (pmap->pixels)[0] = 0;
- pmap->mask_pixel = 1;
- }
- *index_return = 1;
- } else
- *index_return = 0;
- return 0;
-}
-
-/* function call in case of error */
-#undef RETURN
-#define RETURN(status) \
-do { \
- ErrorStatus = status; \
- goto error; \
-} while(0)
-
-/*
- * This function scans the given image and stores the found informations in
- * the given XpmImage structure.
- */
-int
-XpmCreateXpmImageFromImage(
- Display *display,
- XImage *image,
- XImage *shapeimage,
- XpmImage *xpmimage,
- XpmAttributes *attributes)
-{
- /* variables stored in the XpmAttributes structure */
- unsigned int cpp;
-
- /* variables to return */
- PixelsMap pmap;
- XpmColor *colorTable = NULL;
- int ErrorStatus = 0;
-
- /* calculation variables */
- unsigned int width = 0;
- unsigned int height = 0;
- unsigned int cppm; /* minimum chars per pixel */
- unsigned int c;
-
- /* initialize pmap */
- pmap.pixels = NULL;
- pmap.pixelindex = NULL;
- pmap.size = 256; /* should be enough most of the time */
- pmap.ncolors = 0;
- pmap.mask_pixel = 0;
-
- /*
- * get geometry
- */
- if (image) {
- width = image->width;
- height = image->height;
- } else if (shapeimage) {
- width = shapeimage->width;
- height = shapeimage->height;
- }
-
- /*
- * retrieve information from the XpmAttributes
- */
- if (attributes && (attributes->valuemask & XpmCharsPerPixel
-/* 3.2 backward compatibility code */
- || attributes->valuemask & XpmInfos))
-/* end 3.2 bc */
- cpp = attributes->cpp;
- else
- cpp = 0;
-
- if ((height > 0 && width >= UINT_MAX / height) ||
- width * height >= UINT_MAX / sizeof(unsigned int))
- RETURN(XpmNoMemory);
- pmap.pixelindex =
- (unsigned int *) XpmCalloc(width * height, sizeof(unsigned int));
- if (!pmap.pixelindex)
- RETURN(XpmNoMemory);
-
- if (pmap.size >= UINT_MAX / sizeof(Pixel))
- RETURN(XpmNoMemory);
-
- pmap.pixels = (Pixel *) XpmMalloc(sizeof(Pixel) * pmap.size);
- if (!pmap.pixels)
- RETURN(XpmNoMemory);
-
- /*
- * scan shape mask if any
- */
- if (shapeimage) {
-#ifndef FOR_MSW
-# ifndef AMIGA
- ErrorStatus = GetImagePixels1(shapeimage, width, height, &pmap,
- storeMaskPixel);
-# else
- ErrorStatus = AGetImagePixels(shapeimage, width, height, &pmap,
- storeMaskPixel);
-# endif
-#else
- ErrorStatus = MSWGetImagePixels(display, shapeimage, width, height,
- &pmap, storeMaskPixel);
-#endif
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
- }
-
- /*
- * scan 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) {
-#ifndef FOR_MSW
-# ifndef AMIGA
- if (((image->bits_per_pixel | image->depth) == 1) &&
- (image->byte_order == image->bitmap_bit_order))
- ErrorStatus = GetImagePixels1(image, width, height, &pmap,
- storePixel);
- else if (image->format == ZPixmap) {
- if (image->bits_per_pixel == 8)
- ErrorStatus = GetImagePixels8(image, width, height, &pmap);
- else if (image->bits_per_pixel == 16)
- ErrorStatus = GetImagePixels16(image, width, height, &pmap);
- else if (image->bits_per_pixel == 32)
- ErrorStatus = GetImagePixels32(image, width, height, &pmap);
- } else
- ErrorStatus = GetImagePixels(image, width, height, &pmap);
-# else
- ErrorStatus = AGetImagePixels(image, width, height, &pmap,
- storePixel);
-# endif
-#else
- ErrorStatus = MSWGetImagePixels(display, image, width, height, &pmap,
- storePixel);
-#endif
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
- }
-
- /*
- * get rgb values and a string of char, and possibly a name for each
- * color
- */
- if (pmap.ncolors >= UINT_MAX / sizeof(XpmColor))
- RETURN(XpmNoMemory);
- colorTable = (XpmColor *) XpmCalloc(pmap.ncolors, sizeof(XpmColor));
- if (!colorTable)
- RETURN(XpmNoMemory);
-
- /* compute the minimal cpp */
- for (cppm = 1, c = MAXPRINTABLE; pmap.ncolors > c; cppm++)
- c *= MAXPRINTABLE;
- if (cpp < cppm)
- cpp = cppm;
-
- if (pmap.mask_pixel) {
- ErrorStatus = ScanTransparentColor(colorTable, cpp, attributes);
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
- }
-
- ErrorStatus = ScanOtherColors(display, colorTable, pmap.ncolors,
- pmap.pixels, pmap.mask_pixel, cpp,
- attributes);
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
-
- /*
- * store found informations in the XpmImage structure
- */
- xpmimage->width = width;
- xpmimage->height = height;
- xpmimage->cpp = cpp;
- xpmimage->ncolors = pmap.ncolors;
- xpmimage->colorTable = colorTable;
- xpmimage->data = pmap.pixelindex;
-
- XpmFree(pmap.pixels);
- return (XpmSuccess);
-
-/* exit point in case of error, free only locally allocated variables */
-error:
- if (pmap.pixelindex)
- XpmFree(pmap.pixelindex);
- if (pmap.pixels)
- XpmFree(pmap.pixels);
- if (colorTable)
- xpmFreeColorTable(colorTable, pmap.ncolors);
-
- return (ErrorStatus);
-}
-
-static int
-ScanTransparentColor(
- XpmColor *color,
- unsigned int cpp,
- XpmAttributes *attributes)
-{
- char *s;
- unsigned int a, b, c;
-
- /* first get a character string */
- a = 0;
- if (cpp >= UINT_MAX - 1)
- return (XpmNoMemory);
- if (!(s = color->string = (char *) XpmMalloc(cpp + 1)))
- return (XpmNoMemory);
- *s++ = printable[c = a % MAXPRINTABLE];
- for (b = 1; b < cpp; b++, s++)
- *s = printable[c = ((a - c) / MAXPRINTABLE) % MAXPRINTABLE];
- *s = '\0';
-
- /* then retreive related info from the attributes if any */
- if (attributes && (attributes->valuemask & XpmColorTable
-/* 3.2 backward compatibility code */
- || attributes->valuemask & XpmInfos)
-/* end 3.2 bc */
- && attributes->mask_pixel != XpmUndefPixel) {
-
- unsigned int key;
- char **defaults = (char **) color;
- char **mask_defaults;
-
-/* 3.2 backward compatibility code */
- if (attributes->valuemask & XpmColorTable)
-/* end 3.2 bc */
- mask_defaults = (char **) (
- attributes->colorTable + attributes->mask_pixel);
-/* 3.2 backward compatibility code */
- else
- mask_defaults = (char **)
- ((XpmColor **) attributes->colorTable)[attributes->mask_pixel];
-/* end 3.2 bc */
- for (key = 1; key <= NKEYS; key++) {
- if ((s = mask_defaults[key])) {
- defaults[key] = (char *) xpmstrdup(s);
- if (!defaults[key])
- return (XpmNoMemory);
- }
- }
- } else {
- color->c_color = (char *) xpmstrdup(TRANSPARENT_COLOR);
- if (!color->c_color)
- return (XpmNoMemory);
- }
- return (XpmSuccess);
-}
-
-static int
-ScanOtherColors(
- Display *display,
- XpmColor *colors,
- unsigned int ncolors,
- Pixel *pixels,
- unsigned int mask,
- unsigned int cpp,
- XpmAttributes *attributes)
-{
- /* variables stored in the XpmAttributes structure */
- Colormap colormap;
- char *rgb_fname;
-
-#ifndef FOR_MSW
- xpmRgbName rgbn[MAX_RGBNAMES];
-#else
- xpmRgbName *rgbn = NULL;
-#endif
- int rgbn_max = 0;
- unsigned int i, j, c, i2;
- XpmColor *color;
- XColor *xcolors = NULL, *xcolor;
- char *colorname, *s;
- XpmColor *colorTable = NULL, **oldColorTable = NULL;
- unsigned int ancolors = 0;
- Pixel *apixels = NULL;
- unsigned int mask_pixel = 0;
- Bool found;
-
- /* retrieve information from the XpmAttributes */
- if (attributes && (attributes->valuemask & XpmColormap))
- colormap = attributes->colormap;
- else
- colormap = XDefaultColormap(display, XDefaultScreen(display));
- if (attributes && (attributes->valuemask & XpmRgbFilename))
- rgb_fname = attributes->rgb_fname;
- else
- rgb_fname = NULL;
-
- /* start from the right element */
- if (mask) {
- colors++;
- ncolors--;
- pixels++;
- }
-
- /* first get character strings and rgb values */
- if (ncolors >= UINT_MAX / sizeof(XColor) || cpp >= UINT_MAX - 1)
- return (XpmNoMemory);
- xcolors = (XColor *) XpmMalloc(sizeof(XColor) * ncolors);
- if (!xcolors)
- return (XpmNoMemory);
-
- for (i = 0, i2 = mask, color = colors, xcolor = xcolors;
- i < ncolors; i++, i2++, color++, xcolor++, pixels++) {
-
- if (!(s = color->string = (char *) XpmMalloc(cpp + 1))) {
- XpmFree(xcolors);
- return (XpmNoMemory);
- }
- *s++ = printable[c = i2 % MAXPRINTABLE];
- for (j = 1; j < cpp; j++, s++)
- *s = printable[c = ((i2 - c) / MAXPRINTABLE) % MAXPRINTABLE];
- *s = '\0';
-
- xcolor->pixel = *pixels;
- }
- XQueryColors(display, colormap, xcolors, ncolors);
-
-#ifndef FOR_MSW
- /* read the rgb file if any was specified */
- if (rgb_fname)
- rgbn_max = xpmReadRgbNames(attributes->rgb_fname, rgbn);
-#else
- /* FOR_MSW: rgb names and values are hardcoded in rgbtab.h */
- rgbn_max = xpmReadRgbNames(NULL, NULL);
-#endif
-
- if (attributes && attributes->valuemask & XpmColorTable) {
- colorTable = attributes->colorTable;
- ancolors = attributes->ncolors;
- apixels = attributes->pixels;
- mask_pixel = attributes->mask_pixel;
- }
-/* 3.2 backward compatibility code */
- else if (attributes && attributes->valuemask & XpmInfos) {
- oldColorTable = (XpmColor **) attributes->colorTable;
- ancolors = attributes->ncolors;
- apixels = attributes->pixels;
- mask_pixel = attributes->mask_pixel;
- }
-/* end 3.2 bc */
-
- for (i = 0, color = colors, xcolor = xcolors; i < ncolors;
- i++, color++, xcolor++) {
-
- /* look for related info from the attributes if any */
- found = False;
- if (ancolors) {
- unsigned int offset = 0;
-
- for (j = 0; j < ancolors; j++) {
- if (j == mask_pixel) {
- offset = 1;
- continue;
- }
- if (apixels[j - offset] == xcolor->pixel)
- break;
- }
- if (j != ancolors) {
- unsigned int key;
- char **defaults = (char **) color;
- char **adefaults;
-
-/* 3.2 backward compatibility code */
- if (oldColorTable)
- adefaults = (char **) oldColorTable[j];
- else
-/* end 3.2 bc */
- adefaults = (char **) (colorTable + j);
-
- found = True;
- for (key = 1; key <= NKEYS; key++) {
- if ((s = adefaults[key]))
- defaults[key] = (char *) xpmstrdup(s);
- }
- }
- }
- if (!found) {
- /* if nothing found look for a color name */
- colorname = NULL;
- if (rgbn_max)
- colorname = xpmGetRgbName(rgbn, rgbn_max, xcolor->red,
- xcolor->green, xcolor->blue);
- if (colorname)
- color->c_color = (char *) xpmstrdup(colorname);
- else {
- /* at last store the rgb value */
- char buf[BUFSIZ];
-#ifndef FOR_MSW
- sprintf(buf, "#%04X%04X%04X",
- xcolor->red, xcolor->green, xcolor->blue);
-#else
- sprintf(buf, "#%02x%02x%02x",
- xcolor->red, xcolor->green, xcolor->blue);
-#endif
- color->c_color = (char *) xpmstrdup(buf);
- }
- if (!color->c_color) {
- XpmFree(xcolors);
- xpmFreeRgbNames(rgbn, rgbn_max);
- return (XpmNoMemory);
- }
- }
- }
-
- XpmFree(xcolors);
- xpmFreeRgbNames(rgbn, rgbn_max);
- return (XpmSuccess);
-}
-
-#ifndef FOR_MSW
-# ifndef AMIGA
-/*
- * The functions below are written from X11R5 MIT's code (XImUtil.c)
- *
- * The idea is to have faster functions than the standard XGetPixel function
- * to scan the image data. Indeed we can speed up things by suppressing tests
- * performed for each pixel. We do exactly the same tests but at the image
- * level.
- */
-
-static unsigned long Const low_bits_table[] = {
- 0x00000000, 0x00000001, 0x00000003, 0x00000007,
- 0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f,
- 0x000000ff, 0x000001ff, 0x000003ff, 0x000007ff,
- 0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff,
- 0x0000ffff, 0x0001ffff, 0x0003ffff, 0x0007ffff,
- 0x000fffff, 0x001fffff, 0x003fffff, 0x007fffff,
- 0x00ffffff, 0x01ffffff, 0x03ffffff, 0x07ffffff,
- 0x0fffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff,
- 0xffffffff
-};
-
-/*
- * Default method to scan pixels of an image data structure.
- * The algorithm used is:
- *
- * copy the source bitmap_unit or Zpixel into temp
- * normalize temp if needed
- * extract the pixel bits into return value
- *
- */
-
-static int
-GetImagePixels(
- XImage *image,
- unsigned int width,
- unsigned int height,
- PixelsMap *pmap)
-{
- char *src;
- char *dst;
- unsigned int *iptr;
- char *data;
- unsigned int x, y;
- int bits, depth, ibu, ibpp, offset, i;
- unsigned long lbt;
- Pixel pixel, px;
-
- data = image->data;
- iptr = pmap->pixelindex;
- depth = image->depth;
- lbt = low_bits_table[depth];
- ibpp = image->bits_per_pixel;
- offset = image->xoffset;
-
- if (image->bitmap_unit < 0)
- return (XpmNoMemory);
-
- if ((image->bits_per_pixel | image->depth) == 1) {
- ibu = image->bitmap_unit;
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- src = &data[XYINDEX(x, y, image)];
- dst = (char *) &pixel;
- pixel = 0;
- for (i = ibu >> 3; --i >= 0;)
- *dst++ = *src++;
- XYNORMALIZE(&pixel, image);
- bits = (x + offset) % ibu;
- pixel = ((((char *) &pixel)[bits >> 3]) >> (bits & 7)) & 1;
- if (ibpp != depth)
- pixel &= lbt;
- if (storePixel(pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- } else if (image->format == XYPixmap) {
- int nbytes, bpl, j;
- long plane = 0;
- ibu = image->bitmap_unit;
- nbytes = ibu >> 3;
- bpl = image->bytes_per_line;
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- pixel = 0;
- plane = 0;
- for (i = depth; --i >= 0;) {
- src = &data[XYINDEX(x, y, image) + plane];
- dst = (char *) &px;
- px = 0;
- for (j = nbytes; --j >= 0;)
- *dst++ = *src++;
- XYNORMALIZE(&px, image);
- bits = (x + offset) % ibu;
- pixel = (pixel << 1) |
- (((((char *) &px)[bits >> 3]) >> (bits & 7)) & 1);
- plane = plane + (bpl * height);
- }
- if (ibpp != depth)
- pixel &= lbt;
- if (storePixel(pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- } else if (image->format == ZPixmap) {
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- src = &data[ZINDEX(x, y, image)];
- dst = (char *) &px;
- px = 0;
- for (i = (ibpp + 7) >> 3; --i >= 0;)
- *dst++ = *src++;
- ZNORMALIZE(&px, image);
- pixel = 0;
- for (i = sizeof(unsigned long); --i >= 0;)
- pixel = (pixel << 8) | ((unsigned char *) &px)[i];
- if (ibpp == 4) {
- if (x & 1)
- pixel >>= 4;
- else
- pixel &= 0xf;
- }
- if (ibpp != depth)
- pixel &= lbt;
- if (storePixel(pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- } else
- return (XpmColorError); /* actually a bad image */
- return (XpmSuccess);
-}
-
-/*
- * scan pixels of a 32-bits Z image data structure
- */
-
-#if !defined(WORD64) && !defined(LONG64)
-static unsigned long byteorderpixel = MSBFirst << 24;
-#endif
-
-static int
-GetImagePixels32(
- XImage *image,
- unsigned int width,
- unsigned int height,
- PixelsMap *pmap)
-{
- unsigned char *addr;
- unsigned char *data;
- unsigned int *iptr;
- unsigned int x, y;
- unsigned long lbt;
- Pixel pixel;
- int depth;
-
- data = (unsigned char *) image->data;
- iptr = pmap->pixelindex;
- depth = image->depth;
- lbt = low_bits_table[depth];
-#if !defined(WORD64) && !defined(LONG64)
- 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)];
- pixel = *((unsigned long *) addr);
- if (depth != 32)
- pixel &= lbt;
- if (storePixel(pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- } 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 = ((unsigned long) addr[0] << 24 |
- (unsigned long) addr[1] << 16 |
- (unsigned long) addr[2] << 8 |
- addr[3]);
- if (depth != 32)
- pixel &= lbt;
- if (storePixel(pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- else
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- addr = &data[ZINDEX32(x, y, image)];
- pixel = (addr[0] |
- (unsigned long) addr[1] << 8 |
- (unsigned long) addr[2] << 16 |
- (unsigned long) addr[3] << 24);
- if (depth != 32)
- pixel &= lbt;
- if (storePixel(pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- return (XpmSuccess);
-}
-
-/*
- * scan pixels of a 16-bits Z image data structure
- */
-
-static int
-GetImagePixels16(
- XImage *image,
- unsigned int width,
- unsigned int height,
- PixelsMap *pmap)
-{
- unsigned char *addr;
- unsigned char *data;
- unsigned int *iptr;
- unsigned int x, y;
- unsigned long lbt;
- Pixel pixel;
- int depth;
-
- data = (unsigned char *) image->data;
- iptr = pmap->pixelindex;
- depth = image->depth;
- lbt = low_bits_table[depth];
- if (image->byte_order == MSBFirst)
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- addr = &data[ZINDEX16(x, y, image)];
- pixel = addr[0] << 8 | addr[1];
- if (depth != 16)
- pixel &= lbt;
- if (storePixel(pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- else
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- addr = &data[ZINDEX16(x, y, image)];
- pixel = addr[0] | addr[1] << 8;
- if (depth != 16)
- pixel &= lbt;
- if (storePixel(pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- return (XpmSuccess);
-}
-
-/*
- * scan pixels of a 8-bits Z image data structure
- */
-
-static int
-GetImagePixels8(
- XImage *image,
- unsigned int width,
- unsigned int height,
- PixelsMap *pmap)
-{
- unsigned int *iptr;
- unsigned char *data;
- unsigned int x, y;
- unsigned long lbt;
- Pixel pixel;
- int depth;
-
- data = (unsigned char *) image->data;
- iptr = pmap->pixelindex;
- depth = image->depth;
- lbt = low_bits_table[depth];
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- pixel = data[ZINDEX8(x, y, image)];
- if (depth != 8)
- pixel &= lbt;
- if (storePixel(pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- return (XpmSuccess);
-}
-
-/*
- * scan pixels of a 1-bit depth Z image data structure
- */
-
-static int
-GetImagePixels1(
- XImage *image,
- unsigned int width,
- unsigned int height,
- PixelsMap *pmap,
- storeFuncPtr storeFunc)
-{
- unsigned int *iptr;
- unsigned int x, y;
- char *data;
- Pixel pixel;
- int xoff, yoff, offset, bpl;
-
- data = image->data;
- iptr = pmap->pixelindex;
- offset = image->xoffset;
- bpl = image->bytes_per_line;
-
- if (image->bitmap_bit_order == MSBFirst)
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- xoff = x + offset;
- yoff = y * bpl + (xoff >> 3);
- xoff &= 7;
- pixel = (data[yoff] & (0x80 >> xoff)) ? 1 : 0;
- if ((*storeFunc) (pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- else
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++, iptr++) {
- xoff = x + offset;
- yoff = y * bpl + (xoff >> 3);
- xoff &= 7;
- pixel = (data[yoff] & (1 << xoff)) ? 1 : 0;
- if ((*storeFunc) (pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- return (XpmSuccess);
-}
-
-# else /* AMIGA */
-
-#define CLEAN_UP(status) \
-do {\
- if (pixels) XpmFree (pixels);\
- if (tmp_img) FreeXImage (tmp_img);\
- return (status);\
-} while(0)
-
-static int
-AGetImagePixels (
- XImage *image,
- unsigned int width,
- unsigned int height,
- PixelsMap *pmap,
- int (*storeFunc) (Pixel, PixelsMap *, unsigned int *))
-{
- unsigned int *iptr;
- unsigned int x, y;
- unsigned char *pixels;
- XImage *tmp_img;
-
- pixels = XpmMalloc ((((width+15)>>4)<<4)*sizeof (*pixels));
- if (pixels == NULL)
- return XpmNoMemory;
-
- tmp_img = AllocXImage ((((width+15)>>4)<<4), 1, image->rp->BitMap->Depth);
- if (tmp_img == NULL)
- CLEAN_UP (XpmNoMemory);
-
- iptr = pmap->pixelindex;
- for (y = 0; y < height; ++y)
- {
- ReadPixelLine8 (image->rp, 0, y, width, pixels, tmp_img->rp);
- for (x = 0; x < width; ++x, ++iptr)
- {
- if ((*storeFunc) (pixels[x], pmap, iptr))
- CLEAN_UP (XpmNoMemory);
- }
- }
-
- CLEAN_UP (XpmSuccess);
-}
-
-#undef CLEAN_UP
-
-# endif/* AMIGA */
-#else /* ndef FOR_MSW */
-static int
-MSWGetImagePixels(
- Display *display,
- XImage *image,
- unsigned int width,
- unsigned int height,
- PixelsMap *pmap,
- int (*storeFunc) (Pixel, PixelsMap*, unsigned int *))
-{
- unsigned int *iptr;
- unsigned int x, y;
- Pixel pixel;
-
- iptr = pmap->pixelindex;
-
- SelectObject(*display, image->bitmap);
- for (y = 0; y < height; y++) {
- for (x = 0; x < width; x++, iptr++) {
- pixel = GetPixel(*display, x, y);
- if ((*storeFunc) (pixel, pmap, iptr))
- return (XpmNoMemory);
- }
- }
- return (XpmSuccess);
-}
-
-#endif
-
-#ifndef FOR_MSW
-# ifndef AMIGA
-int
-XpmCreateXpmImageFromPixmap(
- Display *display,
- Pixmap pixmap,
- Pixmap shapemask,
- XpmImage *xpmimage,
- XpmAttributes *attributes)
-{
- XImage *ximage = NULL;
- XImage *shapeimage = NULL;
- unsigned int width = 0;
- unsigned int height = 0;
- int ErrorStatus;
-
- /* get geometry */
- if (attributes && attributes->valuemask & XpmSize) {
- width = attributes->width;
- height = attributes->height;
- }
- /* get the ximages */
- if (pixmap)
- xpmCreateImageFromPixmap(display, pixmap, &ximage, &width, &height);
- if (shapemask)
- xpmCreateImageFromPixmap(display, shapemask, &shapeimage,
- &width, &height);
-
- /* create the related XpmImage */
- ErrorStatus = XpmCreateXpmImageFromImage(display, ximage, shapeimage,
- xpmimage, attributes);
-
- /* destroy the ximages */
- if (ximage)
- XDestroyImage(ximage);
- if (shapeimage)
- XDestroyImage(shapeimage);
-
- return (ErrorStatus);
-}
-
-# endif/* not AMIGA */
-#endif /* ndef FOR_MSW */
+/* + * Copyright (C) 1989-95 GROUPE BULL + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Except as contained in this notice, the name of GROUPE BULL shall not be + * used in advertising or otherwise to promote the sale, use or other dealings + * in this Software without prior written authorization from GROUPE BULL. + */ + +/*****************************************************************************\ +* scan.c: * +* * +* XPM library * +* Scanning utility for XPM file format * +* * +* Developed by Arnaud Le Hors * +\*****************************************************************************/ + +/* + * The code related to FOR_MSW has been added by + * HeDu (hedu@cul-ipn.uni-kiel.de) 4/94 + */ + +/* + * The code related to AMIGA has been added by + * Lorens Younes (d93-hyo@nada.kth.se) 4/96 + */ + +/* October 2004, source code review by Thomas Biege <thomas@suse.de> */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "XpmI.h" + +#define MAXPRINTABLE 92 /* number of printable ascii chars + * minus \ and " for string compat + * and ? to avoid ANSI trigraphs. */ + +static char *printable = +" .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjklzxcvbnmMNBVCZ\ +ASDFGHJKLPIUYTREWQ!~^/()_`'][{}|"; + +/* + * printable begin with a space, so in most case, due to my algorithm, when + * the number of different colors is less than MAXPRINTABLE, it will give a + * char follow by "nothing" (a space) in the readable xpm file + */ + + +typedef struct { + Pixel *pixels; + unsigned int *pixelindex; + unsigned int size; + unsigned int ncolors; + unsigned int mask_pixel; /* whether there is or not */ +} PixelsMap; + +LFUNC(storePixel, int, (Pixel pixel, PixelsMap *pmap, + unsigned int *index_return)); + +LFUNC(storeMaskPixel, int, (Pixel pixel, PixelsMap *pmap, + unsigned int *index_return)); + +typedef int (*storeFuncPtr)(Pixel pixel, PixelsMap *pmap, + unsigned int *index_return); + +#ifndef FOR_MSW +# ifndef AMIGA +LFUNC(GetImagePixels, int, (XImage *image, unsigned int width, + unsigned int height, PixelsMap *pmap)); + +LFUNC(GetImagePixels32, int, (XImage *image, unsigned int width, + unsigned int height, PixelsMap *pmap)); + +LFUNC(GetImagePixels16, int, (XImage *image, unsigned int width, + unsigned int height, PixelsMap *pmap)); + +LFUNC(GetImagePixels8, int, (XImage *image, unsigned int width, + unsigned int height, PixelsMap *pmap)); + +LFUNC(GetImagePixels1, int, (XImage *image, unsigned int width, + unsigned int height, PixelsMap *pmap, + storeFuncPtr storeFunc)); +# else /* AMIGA */ +LFUNC(AGetImagePixels, int, (XImage *image, unsigned int width, + unsigned int height, PixelsMap *pmap, + storeFuncPtr storeFunc)); +# endif/* AMIGA */ +#else /* ndef FOR_MSW */ +LFUNC(MSWGetImagePixels, int, (Display *d, XImage *image, unsigned int width, + unsigned int height, PixelsMap *pmap, + storeFuncPtr storeFunc)); +#endif +LFUNC(ScanTransparentColor, int, (XpmColor *color, unsigned int cpp, + XpmAttributes *attributes)); + +LFUNC(ScanOtherColors, int, (Display *display, XpmColor *colors, + unsigned int ncolors, + Pixel *pixels, unsigned int mask, + unsigned int cpp, XpmAttributes *attributes)); + +/* + * This function stores the given pixel in the given arrays which are grown + * if not large enough. + */ +static int +storePixel( + Pixel pixel, + PixelsMap *pmap, + unsigned int *index_return) +{ + unsigned int i; + Pixel *p; + unsigned int ncolors; + + if (*index_return) { /* this is a transparent pixel! */ + *index_return = 0; + return 0; + } + ncolors = pmap->ncolors; + p = pmap->pixels + pmap->mask_pixel; + for (i = pmap->mask_pixel; i < ncolors; i++, p++) + if (*p == pixel) + break; + if (i == ncolors) { + if (ncolors >= pmap->size) { + pmap->size *= 2; + p = (Pixel *) XpmRealloc(pmap->pixels, sizeof(Pixel) * pmap->size); + if (!p) + return (1); + pmap->pixels = p; + + } + (pmap->pixels)[ncolors] = pixel; + pmap->ncolors++; + } + *index_return = i; + return 0; +} + +static int +storeMaskPixel( + Pixel pixel, + PixelsMap *pmap, + unsigned int *index_return) +{ + if (!pixel) { + if (!pmap->ncolors) { + pmap->ncolors = 1; + (pmap->pixels)[0] = 0; + pmap->mask_pixel = 1; + } + *index_return = 1; + } else + *index_return = 0; + return 0; +} + +/* function call in case of error */ +#undef RETURN +#define RETURN(status) \ +do { \ + ErrorStatus = status; \ + goto error; \ +} while(0) + +/* + * This function scans the given image and stores the found informations in + * the given XpmImage structure. + */ +int +XpmCreateXpmImageFromImage( + Display *display, + XImage *image, + XImage *shapeimage, + XpmImage *xpmimage, + XpmAttributes *attributes) +{ + /* variables stored in the XpmAttributes structure */ + unsigned int cpp; + + /* variables to return */ + PixelsMap pmap; + XpmColor *colorTable = NULL; + int ErrorStatus = 0; + + /* calculation variables */ + unsigned int width = 0; + unsigned int height = 0; + unsigned int cppm; /* minimum chars per pixel */ + unsigned int c; + + /* initialize pmap */ + pmap.pixels = NULL; + pmap.pixelindex = NULL; + pmap.size = 256; /* should be enough most of the time */ + pmap.ncolors = 0; + pmap.mask_pixel = 0; + + /* + * get geometry + */ + if (image) { + width = image->width; + height = image->height; + } else if (shapeimage) { + width = shapeimage->width; + height = shapeimage->height; + } + + /* + * retrieve information from the XpmAttributes + */ + if (attributes && (attributes->valuemask & XpmCharsPerPixel +/* 3.2 backward compatibility code */ + || attributes->valuemask & XpmInfos)) +/* end 3.2 bc */ + cpp = attributes->cpp; + else + cpp = 0; + + if ((height > 0 && width >= UINT_MAX / height) || + width * height >= UINT_MAX / sizeof(unsigned int)) + RETURN(XpmNoMemory); + pmap.pixelindex = + (unsigned int *) XpmCalloc(width * height, sizeof(unsigned int)); + if (!pmap.pixelindex) + RETURN(XpmNoMemory); + + if (pmap.size >= UINT_MAX / sizeof(Pixel)) + RETURN(XpmNoMemory); + + pmap.pixels = (Pixel *) XpmMalloc(sizeof(Pixel) * pmap.size); + if (!pmap.pixels) + RETURN(XpmNoMemory); + + /* + * scan shape mask if any + */ + if (shapeimage) { +#ifndef FOR_MSW +# ifndef AMIGA + ErrorStatus = GetImagePixels1(shapeimage, width, height, &pmap, + storeMaskPixel); +# else + ErrorStatus = AGetImagePixels(shapeimage, width, height, &pmap, + storeMaskPixel); +# endif +#else + ErrorStatus = MSWGetImagePixels(display, shapeimage, width, height, + &pmap, storeMaskPixel); +#endif + if (ErrorStatus != XpmSuccess) + RETURN(ErrorStatus); + } + + /* + * scan 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) { +#ifndef FOR_MSW +# ifndef AMIGA + if (((image->bits_per_pixel | image->depth) == 1) && + (image->byte_order == image->bitmap_bit_order)) + ErrorStatus = GetImagePixels1(image, width, height, &pmap, + storePixel); + else if (image->format == ZPixmap) { + if (image->bits_per_pixel == 8) + ErrorStatus = GetImagePixels8(image, width, height, &pmap); + else if (image->bits_per_pixel == 16) + ErrorStatus = GetImagePixels16(image, width, height, &pmap); + else if (image->bits_per_pixel == 32) + ErrorStatus = GetImagePixels32(image, width, height, &pmap); + } else + ErrorStatus = GetImagePixels(image, width, height, &pmap); +# else + ErrorStatus = AGetImagePixels(image, width, height, &pmap, + storePixel); +# endif +#else + ErrorStatus = MSWGetImagePixels(display, image, width, height, &pmap, + storePixel); +#endif + if (ErrorStatus != XpmSuccess) + RETURN(ErrorStatus); + } + + /* + * get rgb values and a string of char, and possibly a name for each + * color + */ + if (pmap.ncolors >= UINT_MAX / sizeof(XpmColor)) + RETURN(XpmNoMemory); + colorTable = (XpmColor *) XpmCalloc(pmap.ncolors, sizeof(XpmColor)); + if (!colorTable) + RETURN(XpmNoMemory); + + /* compute the minimal cpp */ + for (cppm = 1, c = MAXPRINTABLE; pmap.ncolors > c; cppm++) + c *= MAXPRINTABLE; + if (cpp < cppm) + cpp = cppm; + + if (pmap.mask_pixel) { + ErrorStatus = ScanTransparentColor(colorTable, cpp, attributes); + if (ErrorStatus != XpmSuccess) + RETURN(ErrorStatus); + } + + ErrorStatus = ScanOtherColors(display, colorTable, pmap.ncolors, + pmap.pixels, pmap.mask_pixel, cpp, + attributes); + if (ErrorStatus != XpmSuccess) + RETURN(ErrorStatus); + + /* + * store found informations in the XpmImage structure + */ + xpmimage->width = width; + xpmimage->height = height; + xpmimage->cpp = cpp; + xpmimage->ncolors = pmap.ncolors; + xpmimage->colorTable = colorTable; + xpmimage->data = pmap.pixelindex; + + XpmFree(pmap.pixels); + return (XpmSuccess); + +/* exit point in case of error, free only locally allocated variables */ +error: + if (pmap.pixelindex) + XpmFree(pmap.pixelindex); + if (pmap.pixels) + XpmFree(pmap.pixels); + if (colorTable) + xpmFreeColorTable(colorTable, pmap.ncolors); + + return (ErrorStatus); +} + +static int +ScanTransparentColor( + XpmColor *color, + unsigned int cpp, + XpmAttributes *attributes) +{ + char *s; + unsigned int a, b, c; + + /* first get a character string */ + a = 0; + if (cpp >= UINT_MAX - 1) + return (XpmNoMemory); + if (!(s = color->string = (char *) XpmMalloc(cpp + 1))) + return (XpmNoMemory); + *s++ = printable[c = a % MAXPRINTABLE]; + for (b = 1; b < cpp; b++, s++) + *s = printable[c = ((a - c) / MAXPRINTABLE) % MAXPRINTABLE]; + *s = '\0'; + + /* then retreive related info from the attributes if any */ + if (attributes && (attributes->valuemask & XpmColorTable +/* 3.2 backward compatibility code */ + || attributes->valuemask & XpmInfos) +/* end 3.2 bc */ + && attributes->mask_pixel != XpmUndefPixel) { + + unsigned int key; + char **defaults = (char **) color; + char **mask_defaults; + +/* 3.2 backward compatibility code */ + if (attributes->valuemask & XpmColorTable) +/* end 3.2 bc */ + mask_defaults = (char **) ( + attributes->colorTable + attributes->mask_pixel); +/* 3.2 backward compatibility code */ + else + mask_defaults = (char **) + ((XpmColor **) attributes->colorTable)[attributes->mask_pixel]; +/* end 3.2 bc */ + for (key = 1; key <= NKEYS; key++) { + if ((s = mask_defaults[key])) { + defaults[key] = (char *) xpmstrdup(s); + if (!defaults[key]) + return (XpmNoMemory); + } + } + } else { + color->c_color = (char *) xpmstrdup(TRANSPARENT_COLOR); + if (!color->c_color) + return (XpmNoMemory); + } + return (XpmSuccess); +} + +static int +ScanOtherColors( + Display *display, + XpmColor *colors, + unsigned int ncolors, + Pixel *pixels, + unsigned int mask, + unsigned int cpp, + XpmAttributes *attributes) +{ + /* variables stored in the XpmAttributes structure */ + Colormap colormap; + char *rgb_fname; + +#ifndef FOR_MSW + xpmRgbName rgbn[MAX_RGBNAMES]; +#else + xpmRgbName *rgbn = NULL; +#endif + int rgbn_max = 0; + unsigned int i, j, c, i2; + XpmColor *color; + XColor *xcolors = NULL, *xcolor; + char *colorname, *s; + XpmColor *colorTable = NULL, **oldColorTable = NULL; + unsigned int ancolors = 0; + Pixel *apixels = NULL; + unsigned int mask_pixel = 0; + Bool found; + + /* retrieve information from the XpmAttributes */ + if (attributes && (attributes->valuemask & XpmColormap)) + colormap = attributes->colormap; + else + colormap = XDefaultColormap(display, XDefaultScreen(display)); + if (attributes && (attributes->valuemask & XpmRgbFilename)) + rgb_fname = attributes->rgb_fname; + else + rgb_fname = NULL; + + /* start from the right element */ + if (mask) { + colors++; + ncolors--; + pixels++; + } + + /* first get character strings and rgb values */ + if (ncolors >= UINT_MAX / sizeof(XColor) || cpp >= UINT_MAX - 1) + return (XpmNoMemory); + xcolors = (XColor *) XpmMalloc(sizeof(XColor) * ncolors); + if (!xcolors) + return (XpmNoMemory); + + for (i = 0, i2 = mask, color = colors, xcolor = xcolors; + i < ncolors; i++, i2++, color++, xcolor++, pixels++) { + + if (!(s = color->string = (char *) XpmMalloc(cpp + 1))) { + XpmFree(xcolors); + return (XpmNoMemory); + } + *s++ = printable[c = i2 % MAXPRINTABLE]; + for (j = 1; j < cpp; j++, s++) + *s = printable[c = ((i2 - c) / MAXPRINTABLE) % MAXPRINTABLE]; + *s = '\0'; + + xcolor->pixel = *pixels; + } + XQueryColors(display, colormap, xcolors, ncolors); + +#ifndef FOR_MSW + /* read the rgb file if any was specified */ + if (rgb_fname) + rgbn_max = xpmReadRgbNames(attributes->rgb_fname, rgbn); +#else + /* FOR_MSW: rgb names and values are hardcoded in rgbtab.h */ + rgbn_max = xpmReadRgbNames(NULL, NULL); +#endif + + if (attributes && attributes->valuemask & XpmColorTable) { + colorTable = attributes->colorTable; + ancolors = attributes->ncolors; + apixels = attributes->pixels; + mask_pixel = attributes->mask_pixel; + } +/* 3.2 backward compatibility code */ + else if (attributes && attributes->valuemask & XpmInfos) { + oldColorTable = (XpmColor **) attributes->colorTable; + ancolors = attributes->ncolors; + apixels = attributes->pixels; + mask_pixel = attributes->mask_pixel; + } +/* end 3.2 bc */ + + for (i = 0, color = colors, xcolor = xcolors; i < ncolors; + i++, color++, xcolor++) { + + /* look for related info from the attributes if any */ + found = False; + if (ancolors) { + unsigned int offset = 0; + + for (j = 0; j < ancolors; j++) { + if (j == mask_pixel) { + offset = 1; + continue; + } + if (apixels[j - offset] == xcolor->pixel) + break; + } + if (j != ancolors) { + unsigned int key; + char **defaults = (char **) color; + char **adefaults; + +/* 3.2 backward compatibility code */ + if (oldColorTable) + adefaults = (char **) oldColorTable[j]; + else +/* end 3.2 bc */ + adefaults = (char **) (colorTable + j); + + found = True; + for (key = 1; key <= NKEYS; key++) { + if ((s = adefaults[key])) + defaults[key] = (char *) xpmstrdup(s); + } + } + } + if (!found) { + /* if nothing found look for a color name */ + colorname = NULL; + if (rgbn_max) + colorname = xpmGetRgbName(rgbn, rgbn_max, xcolor->red, + xcolor->green, xcolor->blue); + if (colorname) + color->c_color = (char *) xpmstrdup(colorname); + else { + /* at last store the rgb value */ + char buf[BUFSIZ]; +#ifndef FOR_MSW + sprintf(buf, "#%04X%04X%04X", + xcolor->red, xcolor->green, xcolor->blue); +#else + sprintf(buf, "#%02x%02x%02x", + xcolor->red, xcolor->green, xcolor->blue); +#endif + color->c_color = (char *) xpmstrdup(buf); + } + if (!color->c_color) { + XpmFree(xcolors); + xpmFreeRgbNames(rgbn, rgbn_max); + return (XpmNoMemory); + } + } + } + + XpmFree(xcolors); + xpmFreeRgbNames(rgbn, rgbn_max); + return (XpmSuccess); +} + +#ifndef FOR_MSW +# ifndef AMIGA +/* + * The functions below are written from X11R5 MIT's code (XImUtil.c) + * + * The idea is to have faster functions than the standard XGetPixel function + * to scan the image data. Indeed we can speed up things by suppressing tests + * performed for each pixel. We do exactly the same tests but at the image + * level. + */ + +static unsigned long Const low_bits_table[] = { + 0x00000000, 0x00000001, 0x00000003, 0x00000007, + 0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f, + 0x000000ff, 0x000001ff, 0x000003ff, 0x000007ff, + 0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff, + 0x0000ffff, 0x0001ffff, 0x0003ffff, 0x0007ffff, + 0x000fffff, 0x001fffff, 0x003fffff, 0x007fffff, + 0x00ffffff, 0x01ffffff, 0x03ffffff, 0x07ffffff, + 0x0fffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff, + 0xffffffff +}; + +/* + * Default method to scan pixels of an image data structure. + * The algorithm used is: + * + * copy the source bitmap_unit or Zpixel into temp + * normalize temp if needed + * extract the pixel bits into return value + * + */ + +static int +GetImagePixels( + XImage *image, + unsigned int width, + unsigned int height, + PixelsMap *pmap) +{ + char *src; + char *dst; + unsigned int *iptr; + char *data; + unsigned int x, y; + int bits, depth, ibu, ibpp, offset, i; + unsigned long lbt; + Pixel pixel, px; + + data = image->data; + iptr = pmap->pixelindex; + depth = image->depth; + lbt = low_bits_table[depth]; + ibpp = image->bits_per_pixel; + offset = image->xoffset; + + if (image->bitmap_unit < 0) + return (XpmNoMemory); + + if ((image->bits_per_pixel | image->depth) == 1) { + ibu = image->bitmap_unit; + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { + src = &data[XYINDEX(x, y, image)]; + dst = (char *) &pixel; + pixel = 0; + for (i = ibu >> 3; --i >= 0;) + *dst++ = *src++; + XYNORMALIZE(&pixel, image); + bits = (x + offset) % ibu; + pixel = ((((char *) &pixel)[bits >> 3]) >> (bits & 7)) & 1; + if (ibpp != depth) + pixel &= lbt; + if (storePixel(pixel, pmap, iptr)) + return (XpmNoMemory); + } + } else if (image->format == XYPixmap) { + int nbytes, bpl, j; + long plane = 0; + ibu = image->bitmap_unit; + nbytes = ibu >> 3; + bpl = image->bytes_per_line; + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { + pixel = 0; + plane = 0; + for (i = depth; --i >= 0;) { + src = &data[XYINDEX(x, y, image) + plane]; + dst = (char *) &px; + px = 0; + for (j = nbytes; --j >= 0;) + *dst++ = *src++; + XYNORMALIZE(&px, image); + bits = (x + offset) % ibu; + pixel = (pixel << 1) | + (((((char *) &px)[bits >> 3]) >> (bits & 7)) & 1); + plane = plane + (bpl * height); + } + if (ibpp != depth) + pixel &= lbt; + if (storePixel(pixel, pmap, iptr)) + return (XpmNoMemory); + } + } else if (image->format == ZPixmap) { + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { + src = &data[ZINDEX(x, y, image)]; + dst = (char *) &px; + px = 0; + for (i = (ibpp + 7) >> 3; --i >= 0;) + *dst++ = *src++; + ZNORMALIZE(&px, image); + pixel = 0; + for (i = sizeof(unsigned long); --i >= 0;) + pixel = (pixel << 8) | ((unsigned char *) &px)[i]; + if (ibpp == 4) { + if (x & 1) + pixel >>= 4; + else + pixel &= 0xf; + } + if (ibpp != depth) + pixel &= lbt; + if (storePixel(pixel, pmap, iptr)) + return (XpmNoMemory); + } + } else + return (XpmColorError); /* actually a bad image */ + return (XpmSuccess); +} + +/* + * scan pixels of a 32-bits Z image data structure + */ + +#if !defined(WORD64) && !defined(LONG64) +static unsigned long byteorderpixel = MSBFirst << 24; +#endif + +static int +GetImagePixels32( + XImage *image, + unsigned int width, + unsigned int height, + PixelsMap *pmap) +{ + unsigned char *addr; + unsigned char *data; + unsigned int *iptr; + unsigned int x, y; + unsigned long lbt; + Pixel pixel; + int depth; + + data = (unsigned char *) image->data; + iptr = pmap->pixelindex; + depth = image->depth; + lbt = low_bits_table[depth]; +#if !defined(WORD64) && !defined(LONG64) + 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)]; + pixel = *((unsigned long *) addr); + if (depth != 32) + pixel &= lbt; + if (storePixel(pixel, pmap, iptr)) + return (XpmNoMemory); + } + } 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 = ((unsigned long) addr[0] << 24 | + (unsigned long) addr[1] << 16 | + (unsigned long) addr[2] << 8 | + addr[3]); + if (depth != 32) + pixel &= lbt; + if (storePixel(pixel, pmap, iptr)) + return (XpmNoMemory); + } + else + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { + addr = &data[ZINDEX32(x, y, image)]; + pixel = (addr[0] | + (unsigned long) addr[1] << 8 | + (unsigned long) addr[2] << 16 | + (unsigned long) addr[3] << 24); + if (depth != 32) + pixel &= lbt; + if (storePixel(pixel, pmap, iptr)) + return (XpmNoMemory); + } + return (XpmSuccess); +} + +/* + * scan pixels of a 16-bits Z image data structure + */ + +static int +GetImagePixels16( + XImage *image, + unsigned int width, + unsigned int height, + PixelsMap *pmap) +{ + unsigned char *addr; + unsigned char *data; + unsigned int *iptr; + unsigned int x, y; + unsigned long lbt; + Pixel pixel; + int depth; + + data = (unsigned char *) image->data; + iptr = pmap->pixelindex; + depth = image->depth; + lbt = low_bits_table[depth]; + if (image->byte_order == MSBFirst) + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { + addr = &data[ZINDEX16(x, y, image)]; + pixel = addr[0] << 8 | addr[1]; + if (depth != 16) + pixel &= lbt; + if (storePixel(pixel, pmap, iptr)) + return (XpmNoMemory); + } + else + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { + addr = &data[ZINDEX16(x, y, image)]; + pixel = addr[0] | addr[1] << 8; + if (depth != 16) + pixel &= lbt; + if (storePixel(pixel, pmap, iptr)) + return (XpmNoMemory); + } + return (XpmSuccess); +} + +/* + * scan pixels of a 8-bits Z image data structure + */ + +static int +GetImagePixels8( + XImage *image, + unsigned int width, + unsigned int height, + PixelsMap *pmap) +{ + unsigned int *iptr; + unsigned char *data; + unsigned int x, y; + unsigned long lbt; + Pixel pixel; + int depth; + + data = (unsigned char *) image->data; + iptr = pmap->pixelindex; + depth = image->depth; + lbt = low_bits_table[depth]; + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { + pixel = data[ZINDEX8(x, y, image)]; + if (depth != 8) + pixel &= lbt; + if (storePixel(pixel, pmap, iptr)) + return (XpmNoMemory); + } + return (XpmSuccess); +} + +/* + * scan pixels of a 1-bit depth Z image data structure + */ + +static int +GetImagePixels1( + XImage *image, + unsigned int width, + unsigned int height, + PixelsMap *pmap, + storeFuncPtr storeFunc) +{ + unsigned int *iptr; + unsigned int x, y; + char *data; + Pixel pixel; + int xoff, yoff, offset, bpl; + + data = image->data; + iptr = pmap->pixelindex; + offset = image->xoffset; + bpl = image->bytes_per_line; + + if (image->bitmap_bit_order == MSBFirst) + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { + xoff = x + offset; + yoff = y * bpl + (xoff >> 3); + xoff &= 7; + pixel = (data[yoff] & (0x80 >> xoff)) ? 1 : 0; + if ((*storeFunc) (pixel, pmap, iptr)) + return (XpmNoMemory); + } + else + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { + xoff = x + offset; + yoff = y * bpl + (xoff >> 3); + xoff &= 7; + pixel = (data[yoff] & (1 << xoff)) ? 1 : 0; + if ((*storeFunc) (pixel, pmap, iptr)) + return (XpmNoMemory); + } + return (XpmSuccess); +} + +# else /* AMIGA */ + +#define CLEAN_UP(status) \ +do {\ + if (pixels) XpmFree (pixels);\ + if (tmp_img) FreeXImage (tmp_img);\ + return (status);\ +} while(0) + +static int +AGetImagePixels ( + XImage *image, + unsigned int width, + unsigned int height, + PixelsMap *pmap, + int (*storeFunc) (Pixel, PixelsMap *, unsigned int *)) +{ + unsigned int *iptr; + unsigned int x, y; + unsigned char *pixels; + XImage *tmp_img; + + pixels = XpmMalloc ((((width+15)>>4)<<4)*sizeof (*pixels)); + if (pixels == NULL) + return XpmNoMemory; + + tmp_img = AllocXImage ((((width+15)>>4)<<4), 1, image->rp->BitMap->Depth); + if (tmp_img == NULL) + CLEAN_UP (XpmNoMemory); + + iptr = pmap->pixelindex; + for (y = 0; y < height; ++y) + { + ReadPixelLine8 (image->rp, 0, y, width, pixels, tmp_img->rp); + for (x = 0; x < width; ++x, ++iptr) + { + if ((*storeFunc) (pixels[x], pmap, iptr)) + CLEAN_UP (XpmNoMemory); + } + } + + CLEAN_UP (XpmSuccess); +} + +#undef CLEAN_UP + +# endif/* AMIGA */ +#else /* ndef FOR_MSW */ +static int +MSWGetImagePixels( + Display *display, + XImage *image, + unsigned int width, + unsigned int height, + PixelsMap *pmap, + int (*storeFunc) (Pixel, PixelsMap*, unsigned int *)) +{ + unsigned int *iptr; + unsigned int x, y; + Pixel pixel; + + iptr = pmap->pixelindex; + + SelectObject(*display, image->bitmap); + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++, iptr++) { + pixel = GetPixel(*display, x, y); + if ((*storeFunc) (pixel, pmap, iptr)) + return (XpmNoMemory); + } + } + return (XpmSuccess); +} + +#endif + +#ifndef FOR_MSW +# ifndef AMIGA +int +XpmCreateXpmImageFromPixmap( + Display *display, + Pixmap pixmap, + Pixmap shapemask, + XpmImage *xpmimage, + XpmAttributes *attributes) +{ + XImage *ximage = NULL; + XImage *shapeimage = NULL; + unsigned int width = 0; + unsigned int height = 0; + int ErrorStatus; + + /* get geometry */ + if (attributes && attributes->valuemask & XpmSize) { + width = attributes->width; + height = attributes->height; + } + /* get the ximages */ + if (pixmap) + xpmCreateImageFromPixmap(display, pixmap, &ximage, &width, &height); + if (shapemask) + xpmCreateImageFromPixmap(display, shapemask, &shapeimage, + &width, &height); + + /* create the related XpmImage */ + ErrorStatus = XpmCreateXpmImageFromImage(display, ximage, shapeimage, + xpmimage, attributes); + + /* destroy the ximages */ + if (ximage) + XDestroyImage(ximage); + if (shapeimage) + XDestroyImage(shapeimage); + + return (ErrorStatus); +} + +# endif/* not AMIGA */ +#endif /* ndef FOR_MSW */ |