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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 TUNGSTEN GRAPHICS 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. #ifdef VL_HANDLES
  33. static struct handle_table *htab = NULL;
  34. pipe_static_mutex(htab_lock);
  35. #endif
  36.  
  37. boolean vlCreateHTAB(void)
  38. {
  39. #ifdef VL_HANDLES
  40.    boolean ret;
  41.    /* Make sure handle table handles match VDPAU handles. */
  42.    assert(sizeof(unsigned) <= sizeof(vlHandle));
  43.    pipe_mutex_lock(htab_lock);
  44.    if (!htab)
  45.       htab = handle_table_create();
  46.    ret = htab != NULL;
  47.    pipe_mutex_unlock(htab_lock);
  48.    return ret;
  49. #else
  50.    return TRUE;
  51. #endif
  52. }
  53.  
  54. void vlDestroyHTAB(void)
  55. {
  56. #ifdef VL_HANDLES
  57.    pipe_mutex_lock(htab_lock);
  58.    if (htab && !handle_table_get_first_handle(htab)) {
  59.       handle_table_destroy(htab);
  60.       htab = NULL;
  61.    }
  62.    pipe_mutex_unlock(htab_lock);
  63. #endif
  64. }
  65.  
  66. vlHandle vlAddDataHTAB(void *data)
  67. {
  68.    assert(data);
  69. #ifdef VL_HANDLES
  70.    vlHandle handle = 0;
  71.    pipe_mutex_lock(htab_lock);
  72.    if (htab)
  73.       handle = handle_table_add(htab, data);
  74.    pipe_mutex_unlock(htab_lock);
  75.    return handle;
  76. #else
  77.    return (vlHandle)data;
  78. #endif
  79. }
  80.  
  81. void* vlGetDataHTAB(vlHandle handle)
  82. {
  83.    assert(handle);
  84. #ifdef VL_HANDLES
  85.    void *data = NULL;
  86.    pipe_mutex_lock(htab_lock);
  87.    if (htab)
  88.       data = handle_table_get(htab, handle);
  89.    pipe_mutex_unlock(htab_lock);
  90.    return data;
  91. #else
  92.    return (void*)handle;
  93. #endif
  94. }
  95.  
  96. void vlRemoveDataHTAB(vlHandle handle)
  97. {
  98. #ifdef VL_HANDLES
  99.    pipe_mutex_lock(htab_lock);
  100.    if (htab)
  101.       handle_table_remove(htab, handle);
  102.    pipe_mutex_unlock(htab_lock);
  103. #endif
  104. }
  105.