svn merge ^/branches/released .

1 files changed, 220 insertions, 0 deletions

diff --git a/mesalib/src/gallium/auxiliary/util/u_string.h b/mesalib/src/gallium/auxiliary/util/u_string.h
new file mode 100644
index 000000000..52e380698
--- /dev/null
+++ b/mesalib/src/gallium/auxiliary/util/u_string.h
@@ -0,0 +1,220 @@
+/**************************************************************************

+ *

+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * All Rights Reserved.

+ *

+ * 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, sub license, 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 (including the

+ * next paragraph) 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 NON-INFRINGEMENT.

+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.

+ *

+ **************************************************************************/

+

+/**

+ * @file

+ * Platform independent functions for string manipulation.

+ *

+ * @author Jose Fonseca <jrfonseca@tungstengraphics.com>

+ */

+

+#ifndef U_STRING_H_

+#define U_STRING_H_

+

+#if !defined(WIN32) && !defined(XF86_LIBC_H)

+#include <stdio.h>

+#endif

+#include <stddef.h>

+#include <stdarg.h>

+

+#include "pipe/p_compiler.h"

+

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+

+

+#ifdef WIN32

+

+int util_vsnprintf(char *, size_t, const char *, va_list);

+int util_snprintf(char *str, size_t size, const char *format, ...);

+

+static INLINE void

+util_vsprintf(char *str, const char *format, va_list ap)

+{

+   util_vsnprintf(str, (size_t)-1, format, ap);

+}

+

+static INLINE void

+util_sprintf(char *str, const char *format, ...)

+{

+   va_list ap;

+   va_start(ap, format);

+   util_vsnprintf(str, (size_t)-1, format, ap);

+   va_end(ap);

+}

+

+static INLINE char *

+util_strchr(const char *s, char c)

+{

+   while(*s) {

+      if(*s == c)

+	 return (char *)s;

+      ++s;

+   }

+   return NULL;

+}

+

+static INLINE char*

+util_strncat(char *dst, const char *src, size_t n)

+{

+   char *p = dst + strlen(dst);

+   const char *q = src;

+   size_t i;

+

+   for (i = 0; i < n && *q != '\0'; ++i)

+       *p++ = *q++;

+   *p = '\0';

+

+   return dst;

+}

+

+static INLINE int

+util_strcmp(const char *s1, const char *s2)

+{

+   unsigned char u1, u2;

+

+   while (1) {

+      u1 = (unsigned char) *s1++;

+      u2 = (unsigned char) *s2++;

+      if (u1 != u2)

+	 return u1 - u2;

+      if (u1 == '\0')

+	 return 0;

+   }

+   return 0;

+}

+

+static INLINE int

+util_strncmp(const char *s1, const char *s2, size_t n)

+{

+   unsigned char u1, u2;

+

+   while (n-- > 0) {

+      u1 = (unsigned char) *s1++;

+      u2 = (unsigned char) *s2++;

+      if (u1 != u2)

+	 return u1 - u2;

+      if (u1 == '\0')

+	 return 0;

+   }

+   return 0;

+}

+

+static INLINE char *

+util_strstr(const char *haystack, const char *needle)

+{

+   const char *p = haystack;

+   size_t len = strlen(needle);

+

+   for (; (p = util_strchr(p, *needle)) != 0; p++) {

+      if (util_strncmp(p, needle, len) == 0) {

+	 return (char *)p;

+      }

+   }

+   return NULL;

+}

+

+static INLINE void *

+util_memmove(void *dest, const void *src, size_t n)

+{

+   char *p = (char *)dest;

+   const char *q = (const char *)src;

+   if (dest < src) {

+      while (n--)

+	 *p++ = *q++;

+   }

+   else

+   {

+      p += n;

+      q += n;

+      while (n--)

+	 *--p = *--q;

+   }

+   return dest;

+}

+

+

+#else

+

+#define util_vsnprintf vsnprintf

+#define util_snprintf snprintf

+#define util_vsprintf vsprintf

+#define util_sprintf sprintf

+#define util_strchr strchr

+#define util_strcmp strcmp

+#define util_strncmp strncmp

+#define util_strncat strncat

+#define util_strstr strstr

+#define util_memmove memmove

+

+#endif

+

+

+/**

+ * Printable string buffer

+ */

+struct util_strbuf

+{

+   char *str;

+   char *ptr;

+   size_t left;

+};

+

+

+static INLINE void

+util_strbuf_init(struct util_strbuf *sbuf, char *str, size_t size) 

+{

+   sbuf->str = str;

+   sbuf->str[0] = 0;

+   sbuf->ptr = sbuf->str;

+   sbuf->left = size;

+}

+

+

+static INLINE void

+util_strbuf_printf(struct util_strbuf *sbuf, const char *format, ...)

+{

+   if(sbuf->left > 1) {

+      size_t written;

+      va_list ap;

+      va_start(ap, format);

+      written = util_vsnprintf(sbuf->ptr, sbuf->left, format, ap);

+      va_end(ap);

+      sbuf->ptr += written;

+      sbuf->left -= written;

+   }

+}

+

+

+

+#ifdef __cplusplus

+}

+#endif

+

+#endif /* U_STRING_H_ */