1 files changed, 134 insertions, 0 deletions
diff --git a/ext/gd/libgd/gdxpm.c b/ext/gd/libgd/gdxpm.c
new file mode 100644
index 0000000..73f86e5
--- /dev/null
+++ b/ext/gd/libgd/gdxpm.c
@@ -0,0 +1,134 @@
+
+/*
+   add ability to load xpm files to gd, requires the xpm
+   library.
+   Caolan.McNamara@ul.ie
+   http://www.csn.ul.ie/~caolan
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "gd.h"
+#include "gdhelpers.h"
+
+#ifdef HAVE_XPM
+
+#include <X11/xpm.h>
+
+gdImagePtr gdImageCreateFromXpm (char *filename)
+{
+	XpmInfo info;
+	XpmImage image;
+	int i, j, k, number;
+	char buf[5];
+	gdImagePtr im = 0;
+	int *pointer;
+	int red = 0, green = 0, blue = 0;
+	int *colors;
+	int ret;
+
+	ret = XpmReadFileToXpmImage(filename, &image, &info);
+	if (ret != XpmSuccess) {
+		return 0;
+	}
+
+	if (!(im = gdImageCreate(image.width, image.height))) {
+		goto done;
+	}
+
+	number = image.ncolors;
+	colors = (int *) safe_emalloc(number, sizeof(int), 0);
+	for (i = 0; i < number; i++) {
+		switch (strlen (image.colorTable[i].c_color)) {
+			case 4:
+				buf[1] = '\0';
+				buf[0] = image.colorTable[i].c_color[1];
+				red = strtol(buf, NULL, 16);
+
+				buf[0] = image.colorTable[i].c_color[2];
+				green = strtol(buf, NULL, 16);
+
+				buf[0] = image.colorTable[i].c_color[3];
+				blue = strtol(buf, NULL, 16);
+				break;
+
+			case 7:
+				buf[2] = '\0';
+				buf[0] = image.colorTable[i].c_color[1];
+				buf[1] = image.colorTable[i].c_color[2];
+				red = strtol(buf, NULL, 16);
+
+				buf[0] = image.colorTable[i].c_color[3];
+				buf[1] = image.colorTable[i].c_color[4];
+				green = strtol(buf, NULL, 16);
+
+				buf[0] = image.colorTable[i].c_color[5];
+				buf[1] = image.colorTable[i].c_color[6];
+				blue = strtol(buf, NULL, 16);
+				break;
+
+			case 10:
+				buf[3] = '\0';
+				buf[0] = image.colorTable[i].c_color[1];
+				buf[1] = image.colorTable[i].c_color[2];
+				buf[2] = image.colorTable[i].c_color[3];
+				red = strtol(buf, NULL, 16);
+				red /= 64;
+
+				buf[0] = image.colorTable[i].c_color[4];
+				buf[1] = image.colorTable[i].c_color[5];
+				buf[2] = image.colorTable[i].c_color[6];
+				green = strtol(buf, NULL, 16);
+				green /= 64;
+
+				buf[0] = image.colorTable[i].c_color[7];
+				buf[1] = image.colorTable[i].c_color[8];
+				buf[2] = image.colorTable[i].c_color[9];
+				blue = strtol(buf, NULL, 16);
+				blue /= 64;
+				break;
+
+			case 13:
+				buf[4] = '\0';
+				buf[0] = image.colorTable[i].c_color[1];
+				buf[1] = image.colorTable[i].c_color[2];
+				buf[2] = image.colorTable[i].c_color[3];
+				buf[3] = image.colorTable[i].c_color[4];
+				red = strtol(buf, NULL, 16);
+				red /= 256;
+
+				buf[0] = image.colorTable[i].c_color[5];
+				buf[1] = image.colorTable[i].c_color[6];
+				buf[2] = image.colorTable[i].c_color[7];
+				buf[3] = image.colorTable[i].c_color[8];
+				green = strtol(buf, NULL, 16);
+				green /= 256;
+
+				buf[0] = image.colorTable[i].c_color[9];
+				buf[1] = image.colorTable[i].c_color[10];
+				buf[2] = image.colorTable[i].c_color[11];
+				buf[3] = image.colorTable[i].c_color[12];
+				blue = strtol(buf, NULL, 16);
+				blue /= 256;
+				break;
+		}
+
+
+		colors[i] = gdImageColorResolve(im, red, green, blue);
+	}
+
+	pointer = (int *) image.data;
+	for (i = 0; i < image.height; i++) {
+		for (j = 0; j < image.width; j++) {
+			k = *pointer++;
+			gdImageSetPixel(im, j, i, colors[k]);
+		}
+	}
+
+	gdFree(colors);
+ done:
+	XpmFreeXpmImage(&image);
+	XpmFreeXpmInfo(&info);
+	return im;
+}
+#endif