Added libgd

project/jni/gd/src/gdhelpers.c

@@ -0,0 +1,118 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gd.h"
+#include "gdhelpers.h"
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <ctype.h>
+
+/* TBB: gd_strtok_r is not portable; provide an implementation */
+
+#define SEP_TEST (separators[*((unsigned char *) s)])
+
+char *
+gd_strtok_r (char *s, char *sep, char **state)
+{
+	char separators[256];
+	char *result = 0;
+	memset (separators, 0, sizeof (separators));
+	while (*sep) {
+		separators[*((unsigned char *) sep)] = 1;
+		sep++;
+	}
+	if (!s) {
+		/* Pick up where we left off */
+		s = *state;
+	}
+	/* 1. EOS */
+	if (!(*s)) {
+		*state = s;
+		return 0;
+	}
+	/* 2. Leading separators, if any */
+	if (SEP_TEST) {
+		do {
+			s++;
+		} while (SEP_TEST);
+		/* 2a. EOS after separators only */
+		if (!(*s)) {
+			*state = s;
+			return 0;
+		}
+	}
+	/* 3. A token */
+	result = s;
+	do {
+		/* 3a. Token at end of string */
+		if (!(*s)) {
+			*state = s;
+			return result;
+		}
+		s++;
+	} while (!SEP_TEST);
+	/* 4. Terminate token and skip trailing separators */
+	*s = '\0';
+	do {
+		s++;
+	} while (SEP_TEST);
+	/* 5. Return token */
+	*state = s;
+	return result;
+}
+
+void * gdCalloc (size_t nmemb, size_t size)
+{
+	return calloc (nmemb, size);
+}
+
+void *
+gdMalloc (size_t size)
+{
+	return malloc (size);
+}
+
+void *
+gdRealloc (void *ptr, size_t size)
+{
+	return realloc (ptr, size);
+}
+
+void *
+gdReallocEx (void *ptr, size_t size)
+{
+	void *newPtr = gdRealloc (ptr, size);
+	if (!newPtr && ptr)
+		gdFree(ptr);
+	return newPtr;
+}
+
+/*
+  Function: gdFree
+
+    Frees memory that has been allocated by libgd functions.
+
+	Unless more specialized functions exists (for instance, <gdImageDestroy>),
+	all memory that has been allocated by public libgd functions has to be
+	freed by calling <gdFree>, and not by free(3), because libgd internally
+	doesn't use alloc(3) and friends but rather its own allocation functions,
+	which are, however, not publicly available.
+
+  Parameters:
+
+	ptr - Pointer to the memory space to free. If it is NULL, no operation is
+		  performed.
+
+  Returns:
+
+	Nothing.
+*/
+BGD_DECLARE(void) gdFree (void *ptr)
+{
+	free (ptr);
+}
+
+