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      1 /*
      2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 
     12 #ifndef __VPX_MEM_INTRNL_H__
     13 #define __VPX_MEM_INTRNL_H__
     14 #include "vpx_config.h"
     15 
     16 #ifndef CONFIG_MEM_MANAGER
     17 # if defined(VXWORKS)
     18 #  define CONFIG_MEM_MANAGER  1 /*include heap manager functionality,*/
     19 /*default: enabled on vxworks*/
     20 # else
     21 #  define CONFIG_MEM_MANAGER  0 /*include heap manager functionality*/
     22 # endif
     23 #endif /*CONFIG_MEM_MANAGER*/
     24 
     25 #ifndef CONFIG_MEM_TRACKER
     26 # define CONFIG_MEM_TRACKER     1 /*include xvpx_* calls in the lib*/
     27 #endif
     28 
     29 #ifndef CONFIG_MEM_CHECKS
     30 # define CONFIG_MEM_CHECKS      0 /*include some basic safety checks in
     31 vpx_memcpy, _memset, and _memmove*/
     32 #endif
     33 
     34 #ifndef USE_GLOBAL_FUNCTION_POINTERS
     35 # define USE_GLOBAL_FUNCTION_POINTERS   0  /*use function pointers instead of compiled functions.*/
     36 #endif
     37 
     38 #if CONFIG_MEM_TRACKER
     39 # include "vpx_mem_tracker.h"
     40 # if VPX_MEM_TRACKER_VERSION_CHIEF != 2 || VPX_MEM_TRACKER_VERSION_MAJOR != 5
     41 #  error "vpx_mem requires memory tracker version 2.5 to track memory usage"
     42 # endif
     43 #endif
     44 
     45 #define ADDRESS_STORAGE_SIZE      sizeof(size_t)
     46 
     47 #ifndef DEFAULT_ALIGNMENT
     48 # if defined(VXWORKS)
     49 #  define DEFAULT_ALIGNMENT        32        /*default addr alignment to use in
     50                                                calls to vpx_* functions other
     51                                                than vpx_memalign*/
     52 # else
     53 #  define DEFAULT_ALIGNMENT        1
     54 # endif
     55 #endif
     56 
     57 #if DEFAULT_ALIGNMENT < 1
     58 # error "DEFAULT_ALIGNMENT must be >= 1!"
     59 #endif
     60 
     61 #if CONFIG_MEM_TRACKER
     62 # define TRY_BOUNDS_CHECK         1        /*when set to 1 pads each allocation,
     63                                              integrity can be checked using
     64                                              vpx_memory_tracker_check_integrity
     65                                              or on free by defining*/
     66 /*TRY_BOUNDS_CHECK_ON_FREE*/
     67 #else
     68 # define TRY_BOUNDS_CHECK         0
     69 #endif /*CONFIG_MEM_TRACKER*/
     70 
     71 #if TRY_BOUNDS_CHECK
     72 # define TRY_BOUNDS_CHECK_ON_FREE 0          /*checks mem integrity on every
     73                                                free, very expensive*/
     74 # define BOUNDS_CHECK_VALUE       0xdeadbeef /*value stored before/after ea.
     75                                                mem addr for bounds checking*/
     76 # define BOUNDS_CHECK_PAD_SIZE    32         /*size of the padding before and
     77                                                after ea allocation to be filled
     78                                                with BOUNDS_CHECK_VALUE.
     79                                                this should be a multiple of 4*/
     80 #else
     81 # define BOUNDS_CHECK_VALUE       0
     82 # define BOUNDS_CHECK_PAD_SIZE    0
     83 #endif /*TRY_BOUNDS_CHECK*/
     84 
     85 #ifndef REMOVE_PRINTFS
     86 # define REMOVE_PRINTFS 0
     87 #endif
     88 
     89 /* Should probably use a vpx_mem logger function. */
     90 #if REMOVE_PRINTFS
     91 # define _P(x)
     92 #else
     93 # define _P(x) x
     94 #endif
     95 
     96 /*returns an addr aligned to the byte boundary specified by align*/
     97 #define align_addr(addr,align) (void*)(((size_t)(addr) + ((align) - 1)) & (size_t)-(align))
     98 
     99 #endif /*__VPX_MEM_INTRNL_H__*/
    100