/*
* Mesa 3-D graphics library
- * Version: 7.1
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
-
-
+#include <stdio.h>
+#include <stdarg.h>
+#include "c99_math.h"
#include "imports.h"
#include "context.h"
#include "mtypes.h"
#else
uintptr_t ptr, buf;
- ASSERT( alignment > 0 );
+ assert( alignment > 0 );
ptr = (uintptr_t)malloc(bytes + alignment + sizeof(void *));
if (!ptr)
#else
uintptr_t ptr, buf;
- ASSERT( alignment > 0 );
+ assert( alignment > 0 );
ptr = (uintptr_t)calloc(1, bytes + alignment + sizeof(void *));
if (!ptr)
* \param ptr pointer to the memory to be freed.
* The actual address to free is stored in the word immediately before the
* address the client sees.
+ * Note that it is legal to pass NULL pointer to this function and will be
+ * handled accordingly.
*/
void
_mesa_align_free(void *ptr)
#elif defined(_WIN32) && defined(_MSC_VER)
_aligned_free(ptr);
#else
- void **cubbyHole = (void **) ((char *) ptr - sizeof(void *));
- void *realAddr = *cubbyHole;
- free(realAddr);
+ if (ptr) {
+ void **cubbyHole = (void **) ((char *) ptr - sizeof(void *));
+ void *realAddr = *cubbyHole;
+ free(realAddr);
+ }
#endif /* defined(HAVE_POSIX_MEMALIGN) */
}
if (newBuf && oldBuffer && copySize > 0) {
memcpy(newBuf, oldBuffer, copySize);
}
- if (oldBuffer)
- _mesa_align_free(oldBuffer);
+
+ _mesa_align_free(oldBuffer);
return newBuf;
#endif
}
-
-
-/** Reallocate memory */
-void *
-_mesa_realloc(void *oldBuffer, size_t oldSize, size_t newSize)
-{
- const size_t copySize = (oldSize < newSize) ? oldSize : newSize;
- void *newBuffer = malloc(newSize);
- if (newBuffer && oldBuffer && copySize > 0)
- memcpy(newBuffer, oldBuffer, copySize);
- free(oldBuffer);
- return newBuffer;
-}
-
/*@}*/
/*@{*/
-#ifndef __GNUC__
+#ifndef HAVE___BUILTIN_FFS
/**
* Find the first bit set in a word.
*/
}
return bit;
}
+#endif
-
+#ifndef HAVE___BUILTIN_FFSLL
/**
* Find position of first bit set in given value.
* XXX Warning: this function can only be used on 64-bit systems!
return 0;
}
-#endif /* __GNUC__ */
+#endif
-#if !defined(__GNUC__) ||\
- ((__GNUC__ * 100 + __GNUC_MINOR__) < 304) /* Not gcc 3.4 or later */
+#ifndef HAVE___BUILTIN_POPCOUNT
/**
* Return number of bits set in given GLuint.
*/
}
return bits;
}
+#endif
+#ifndef HAVE___BUILTIN_POPCOUNTLL
/**
* Return number of bits set in given 64-bit uint.
*/
/*@}*/
-/**********************************************************************/
-/** \name Sort & Search */
-/*@{*/
-
-/**
- * Wrapper for bsearch().
- */
-void *
-_mesa_bsearch( const void *key, const void *base, size_t nmemb, size_t size,
- int (*compar)(const void *, const void *) )
-{
-#if defined(_WIN32_WCE)
- void *mid;
- int cmp;
- while (nmemb) {
- nmemb >>= 1;
- mid = (char *)base + nmemb * size;
- cmp = (*compar)(key, mid);
- if (cmp == 0)
- return mid;
- if (cmp > 0) {
- base = (char *)mid + size;
- --nmemb;
- }
- }
- return NULL;
-#else
- return bsearch(key, base, nmemb, size, compar);
-#endif
-}
-
-/*@}*/
-
-
-/**********************************************************************/
-/** \name Environment vars */
-/*@{*/
-
-/**
- * Wrapper for getenv().
- */
-char *
-_mesa_getenv( const char *var )
-{
-#if defined(_XBOX) || defined(_WIN32_WCE)
- return NULL;
-#else
- return getenv(var);
-#endif
-}
-
-/*@}*/
-
-
/**********************************************************************/
/** \name String */
/*@{*/
-/**
- * Implemented using malloc() and strcpy.
- * Note that NULL is handled accordingly.
- */
-char *
-_mesa_strdup( const char *s )
-{
- if (s) {
- size_t l = strlen(s);
- char *s2 = malloc(l + 1);
- if (s2)
- strcpy(s2, s);
- return s2;
- }
- else {
- return NULL;
- }
-}
-
-/** Wrapper around strtof() */
-float
-_mesa_strtof( const char *s, char **end )
-{
-#if defined(_GNU_SOURCE) && !defined(__CYGWIN__) && !defined(__FreeBSD__) && \
- !defined(ANDROID) && !defined(__HAIKU__) && !defined(__UCLIBC__)
- static locale_t loc = NULL;
- if (!loc) {
- loc = newlocale(LC_CTYPE_MASK, "C", NULL);
- }
- return strtof_l(s, end, loc);
-#elif defined(_ISOC99_SOURCE) || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 600)
- return strtof(s, end);
-#else
- return (float)strtod(s, end);
-#endif
-}
/** Compute simple checksum/hash for a string */
unsigned int
projects / mesa.git / blobdiff