Home | History | Annotate | Download | only in vdpau 
      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) {
     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