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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 
     31 #include "va_private.h"
     32 
     33 #ifdef VL_HANDLES
     34 static struct handle_table *htab = NULL;
     35 pipe_static_mutex(htab_lock);
     36 #endif
     37 
     38 bool vlCreateHTAB(void)
     39 {
     40 #ifdef VL_HANDLES
     41    bool ret;
     42    /* Make sure handle table handles match VAAPI handles. */
     43    assert(sizeof(unsigned) <= sizeof(VAGenericID));
     44    pipe_mutex_lock(htab_lock);
     45    if (!htab)
     46       htab = handle_table_create();
     47    ret = htab != NULL;
     48    pipe_mutex_unlock(htab_lock);
     49    return ret;
     50 #else
     51    return TRUE;
     52 #endif
     53 }
     54 
     55 void vlDestroyHTAB(void)
     56 {
     57 #ifdef VL_HANDLES
     58    pipe_mutex_lock(htab_lock);
     59    if (htab) {
     60       handle_table_destroy(htab);
     61       htab = NULL;
     62    }
     63    pipe_mutex_unlock(htab_lock);
     64 #endif
     65 }
     66 
     67 VAGenericID vlAddDataHTAB(void *data)
     68 {
     69    assert(data);
     70 #ifdef VL_HANDLES
     71    VAGenericID handle = 0;
     72    pipe_mutex_lock(htab_lock);
     73    if (htab)
     74       handle = handle_table_add(htab, data);
     75    pipe_mutex_unlock(htab_lock);
     76    return handle;
     77 #else
     78    return (VAGenericID)data;
     79 #endif
     80 }
     81 
     82 void* vlGetDataHTAB(VAGenericID handle)
     83 {
     84    assert(handle);
     85 #ifdef VL_HANDLES
     86    void *data = NULL;
     87    pipe_mutex_lock(htab_lock);
     88    if (htab)
     89       data = handle_table_get(htab, handle);
     90    pipe_mutex_unlock(htab_lock);
     91    return data;
     92 #else
     93    return (void*)handle;
     94 #endif
     95 }
     96