text: /* Copyright  (C) 2010-2018 The RetroArch team
   *
   * ---------------------------------------------------------------------------------------
   * The following license statement only applies to this file (memalign.c).
   * ---------------------------------------------------------------------------------------
   *
   * 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, sublicense, 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 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 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.
   */
  
  #include <stdint.h>
  #include <stdlib.h>
  
  #include <memalign.h>
  
  
  void *memalign_alloc(size_t boundary, size_t size)
  {
     void **place   = NULL;
     uintptr_t addr = 0;
     void *ptr      = (void*)malloc(boundary + size + sizeof(uintptr_t));
     if (!ptr)
        return NULL;
  
     addr           = ((uintptr_t)ptr + sizeof(uintptr_t) + boundary)
        & ~(boundary - 1);
     place          = (void**)addr;
     place[-1]      = ptr;
  
     return (void*)addr;
  }
  
  void memalign_free(void *ptr)
  {
     void **p = NULL;
     if (!ptr)
        return;
  
     p = (void**)ptr;
     free(p[-1]);
  }
  
  void *memalign_alloc_aligned(size_t size)
  {
  #if defined(__x86_64__) || defined(__LP64) || defined(__IA64__) || defined(_M_X64) || defined(_WIN64)
     return memalign_alloc(64, size);
  #elif defined(__i386__) || defined(__i486__) || defined(__i686__) || defined(GEKKO)
     return memalign_alloc(32, size);
  #else
     return memalign_alloc(32, size);
  #endif
  }
  