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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2010 Younes Manton.
  4.  * All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sub license, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice (including the
  15.  * next paragraph) shall be included in all copies or substantial portions
  16.  * of the Software.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21.  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28. #include "util/u_handle_table.h"
  29. #include "os/os_thread.h"
  30. #include "vdpau_private.h"
  31.  
  32. static struct handle_table *htab = NULL;
  33. pipe_static_mutex(htab_lock);
  34.  
  35. boolean vlCreateHTAB(void)
  36. {
  37.    boolean ret;
  38.  
  39.    /* Make sure handle table handles match VDPAU handles. */
  40.    assert(sizeof(unsigned) <= sizeof(vlHandle));
  41.    pipe_mutex_lock(htab_lock);
  42.    if (!htab)
  43.       htab = handle_table_create();
  44.    ret = htab != NULL;
  45.    pipe_mutex_unlock(htab_lock);
  46.    return ret;
  47. }
  48.  
  49. void vlDestroyHTAB(void)
  50. {
  51.    pipe_mutex_lock(htab_lock);
  52.    if (htab && !handle_table_get_first_handle(htab)) {
  53.       handle_table_destroy(htab);
  54.       htab = NULL;
  55.    }
  56.    pipe_mutex_unlock(htab_lock);
  57. }
  58.  
  59. vlHandle vlAddDataHTAB(void *data)
  60. {
  61.    vlHandle handle = 0;
  62.  
  63.    assert(data);
  64.    pipe_mutex_lock(htab_lock);
  65.    if (htab)
  66.       handle = handle_table_add(htab, data);
  67.    pipe_mutex_unlock(htab_lock);
  68.    return handle;
  69. }
  70.  
  71. void* vlGetDataHTAB(vlHandle handle)
  72. {
  73.    void *data = NULL;
  74.  
  75.    assert(handle);
  76.    pipe_mutex_lock(htab_lock);
  77.    if (htab)
  78.       data = handle_table_get(htab, handle);
  79.    pipe_mutex_unlock(htab_lock);
  80.    return data;
  81. }
  82.  
  83. void vlRemoveDataHTAB(vlHandle handle)
  84. {
  85.    pipe_mutex_lock(htab_lock);
  86.    if (htab)
  87.       handle_table_remove(htab, handle);
  88.    pipe_mutex_unlock(htab_lock);
  89. }
  90.