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Viewing changes to gdchart0.94c/gd-1.8.3/gdxpm.c

  • Committer: Bazaar Package Importer
  • Author(s): Dennis Schoen
  • Date: 2002-04-12 11:38:47 UTC
  • Revision ID: james.westby@ubuntu.com-20020412113847-4k4yydw0pzybc6g8
Tags: upstream-2.0.0
Import upstream version 2.0.0

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gdchart0.94c/gd-1.8.3/gdxpm.c
 
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/* 
 
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add ability to load xpm files to gd, requires the xpm
 
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library.
 
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Caolan.McNamara@ul.ie 
 
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http://www.csn.ul.ie/~caolan
 
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*/
 
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#include <stdio.h>
 
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#include <stdlib.h>
 
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#include "gd.h"
 
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#ifndef HAVE_XPM
 
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gdImagePtr gdImageCreateFromXpm(char *filename)
 
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        {
 
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        fprintf(stderr,"libgd was not built with xpm support\n");
 
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        return(NULL);
 
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        }
 
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#else
 
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#include "xpm.h"
 
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gdImagePtr gdImageCreateFromXpm(char *filename)
 
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        {
 
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        XpmInfo info;
 
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        XpmImage image;
 
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        int i,j,k,number;
 
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        char buf[5];
 
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        gdImagePtr im = 0;
 
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        char *apixel;
 
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        int *pointer;
 
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        int red=0,green=0,blue=0,color=0;
 
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        int *colors;
 
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        int ret;
 
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        ret = XpmReadFileToXpmImage(filename,&image,&info);
 
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        if (ret != XpmSuccess)
 
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                return 0;
 
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        if (!(im = gdImageCreate(image.width, image.height))) 
 
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            return 0;
 
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        number = image.ncolors;
 
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        colors = (int*)malloc(sizeof(int) * number);
 
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        if (colors == NULL)
 
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                return(0);
 
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        for (i = 0; i < number; i++) 
 
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                {
 
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                switch(strlen(image.colorTable[i].c_color))
 
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                        {
 
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                        case 4:
 
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                                buf[1] = '\0';
 
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                                buf[0] = image.colorTable[i].c_color[1];
 
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                                red = strtol(buf,NULL,16);
 
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                                buf[0] = image.colorTable[i].c_color[3];
 
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                                green = strtol(buf,NULL,16);
 
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                                buf[0] = image.colorTable[i].c_color[5];
 
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                                blue = strtol(buf,NULL,16);
 
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                                break;
 
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                        case 7:
 
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                                buf[2] = '\0';
 
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                                buf[0] = image.colorTable[i].c_color[1];
 
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                                buf[1] = image.colorTable[i].c_color[2];
 
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                                red = strtol(buf,NULL,16);
 
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                                buf[0] = image.colorTable[i].c_color[3];
 
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                                buf[1] = image.colorTable[i].c_color[4];
 
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                                green = strtol(buf,NULL,16);
 
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                                buf[0] = image.colorTable[i].c_color[5];
 
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                                buf[1] = image.colorTable[i].c_color[6];
 
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                                blue = strtol(buf,NULL,16);
 
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                                break;
 
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                        case 10:
 
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                                buf[3] = '\0';
 
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                                buf[0] = image.colorTable[i].c_color[1];
 
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                                buf[1] = image.colorTable[i].c_color[2];
 
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                                buf[2] = image.colorTable[i].c_color[3];
 
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                                red = strtol(buf,NULL,16);
 
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                                red /= 64;
 
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                                buf[0] = image.colorTable[i].c_color[4];
 
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                                buf[1] = image.colorTable[i].c_color[5];
 
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                                buf[2] = image.colorTable[i].c_color[6];
 
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                                green = strtol(buf,NULL,16);
 
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                                green /= 64;
 
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                                buf[0] = image.colorTable[i].c_color[7];
 
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                                buf[1] = image.colorTable[i].c_color[8];
 
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                                buf[2] = image.colorTable[i].c_color[9];
 
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                                blue = strtol(buf,NULL,16);
 
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                                blue /= 64;
 
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                                break;
 
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                        case 13:
 
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                                buf[4] = '\0';
 
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                                buf[0] = image.colorTable[i].c_color[1];
 
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                                buf[1] = image.colorTable[i].c_color[2];
 
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                                buf[2] = image.colorTable[i].c_color[3];
 
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                                buf[3] = image.colorTable[i].c_color[4];
 
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                                red = strtol(buf,NULL,16);
 
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                                red /= 256;
 
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                                buf[0] = image.colorTable[i].c_color[5];
 
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                                buf[1] = image.colorTable[i].c_color[6];
 
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                                buf[2] = image.colorTable[i].c_color[7];
 
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                                buf[3] = image.colorTable[i].c_color[8];
 
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                                green = strtol(buf,NULL,16);
 
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                                green /= 256;
 
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                                buf[0] = image.colorTable[i].c_color[9];
 
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                                buf[1] = image.colorTable[i].c_color[10];
 
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                                buf[2] = image.colorTable[i].c_color[11];
 
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                                buf[3] = image.colorTable[i].c_color[12];
 
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                                blue = strtol(buf,NULL,16);
 
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                                blue /= 256;
 
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                                break;
 
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                        }
 
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                colors[i] = gdImageColorResolve(im,red,green,blue);
 
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                if (colors[i] == -1)
 
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                        fprintf(stderr,"ARRRGH\n");
 
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                }
 
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        apixel = (char *)malloc(image.cpp+1);
 
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        if (apixel == NULL)
 
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                return(0);
 
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        apixel[image.cpp] = '\0';
 
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        pointer = image.data;
 
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        for(i=0;i<image.height;i++)
 
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                {
 
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                for(j=0;j<image.width;j++)
 
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                        {
 
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                        k = *pointer++;
 
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                        gdImageSetPixel(im,j,i,colors[k]);
 
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                        }
 
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                }
 
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        free(apixel);
 
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        free(colors);
 
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        return(im);
 
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        }
 
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#endif