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/**************************************************************************
*
* 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.
*
**************************************************************************/
/**
* Memory functions
*/
#ifndef U_MEMORY_H
#define U_MEMORY_H
#include "util/u_pointer.h"
#include "pipe/p_debug.h"
/* Define ENOMEM for WINCE */
#if (_WIN32_WCE < 600)
#ifndef ENOMEM
#define ENOMEM 12
#endif
#endif
#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) && defined(DEBUG)
/* memory debugging */
#include "pipe/p_debug.h"
#define MALLOC( _size ) \
debug_malloc( __FILE__, __LINE__, __FUNCTION__, _size )
#define CALLOC( _count, _size ) \
debug_calloc(__FILE__, __LINE__, __FUNCTION__, _count, _size )
#define FREE( _ptr ) \
debug_free( __FILE__, __LINE__, __FUNCTION__, _ptr )
#define REALLOC( _ptr, _old_size, _size ) \
debug_realloc( __FILE__, __LINE__, __FUNCTION__, _ptr, _old_size, _size )
#elif defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
void * __stdcall
EngAllocMem(
unsigned long Flags,
unsigned long MemSize,
unsigned long Tag );
void __stdcall
EngFreeMem(
void *Mem );
#define MALLOC( _size ) EngAllocMem( 0, _size, 'D3AG' )
#define _FREE( _ptr ) EngFreeMem( _ptr )
#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)
void *
ExAllocatePool(
unsigned long PoolType,
size_t NumberOfBytes);
void
ExFreePool(void *P);
#define MALLOC(_size) ExAllocatePool(0, _size)
#define _FREE(_ptr) ExFreePool(_ptr)
#else
#define MALLOC( SIZE ) malloc( SIZE )
#define CALLOC( COUNT, SIZE ) calloc( COUNT, SIZE )
#define FREE( PTR ) free( PTR )
#define REALLOC( OLDPTR, OLDSIZE, NEWSIZE ) realloc( OLDPTR, NEWSIZE )
#endif
#ifndef CALLOC
static INLINE void *
CALLOC( unsigned count, unsigned size )
{
void *ptr = MALLOC( count * size );
if( ptr ) {
memset( ptr, 0, count * size );
}
return ptr;
}
#endif /* !CALLOC */
#ifndef FREE
static INLINE void
FREE( void *ptr )
{
if( ptr ) {
_FREE( ptr );
}
}
#endif /* !FREE */
#ifndef REALLOC
static INLINE void *
REALLOC( void *old_ptr, unsigned old_size, unsigned new_size )
{
void *new_ptr = NULL;
if (new_size != 0) {
unsigned copy_size = old_size < new_size ? old_size : new_size;
new_ptr = MALLOC( new_size );
if (new_ptr && old_ptr && copy_size) {
memcpy( new_ptr, old_ptr, copy_size );
}
}
FREE( old_ptr );
return new_ptr;
}
#endif /* !REALLOC */
#define MALLOC_STRUCT(T) (struct T *) MALLOC(sizeof(struct T))
#define CALLOC_STRUCT(T) (struct T *) CALLOC(1, sizeof(struct T))
/**
* Return memory on given byte alignment
*/
static INLINE void *
align_malloc(size_t bytes, uint alignment)
{
#if defined(HAVE_POSIX_MEMALIGN)
void *mem;
alignment = (alignment + (uint)sizeof(void*) - 1) & ~((uint)sizeof(void*) - 1);
if(posix_memalign(& mem, alignment, bytes) != 0)
return NULL;
return mem;
#else
char *ptr, *buf;
assert( alignment > 0 );
ptr = (char *) MALLOC(bytes + alignment + sizeof(void *));
if (!ptr)
return NULL;
buf = (char *) align_pointer( ptr + sizeof(void *), alignment );
*(char **)(buf - sizeof(void *)) = ptr;
return buf;
#endif /* defined(HAVE_POSIX_MEMALIGN) */
}
/**
* Free memory returned by align_malloc().
*/
static INLINE void
align_free(void *ptr)
{
#if defined(HAVE_POSIX_MEMALIGN)
FREE(ptr);
#else
void **cubbyHole = (void **) ((char *) ptr - sizeof(void *));
void *realAddr = *cubbyHole;
FREE(realAddr);
#endif /* defined(HAVE_POSIX_MEMALIGN) */
}
/**
* Duplicate a block of memory.
*/
static INLINE void *
mem_dup(const void *src, uint size)
{
void *dup = MALLOC(size);
if (dup)
memcpy(dup, src, size);
return dup;
}
/**
* Number of elements in an array.
*/
#ifndef Elements
#define Elements(x) (sizeof(x)/sizeof((x)[0]))
#endif
/**
* Offset of a field in a struct, in bytes.
*/
#define Offset(TYPE, MEMBER) ((unsigned)&(((TYPE *)NULL)->MEMBER))
#endif /* U_MEMORY_H */
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