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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