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      1 /*
      2  * Mesa 3-D graphics library
      3  *
      4  * Copyright (C) 2012-2013 LunarG, Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included
     14  * in all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     22  * DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors:
     25  *    Chia-I Wu <olv (at) lunarg.com>
     26  */
     27 
     28 #ifndef ILO_QUERY_H
     29 #define ILO_QUERY_H
     30 
     31 #include "ilo_common.h"
     32 
     33 struct intel_bo;
     34 struct ilo_context;
     35 
     36 /**
     37  * Queries can be bound to various places in the driver.  While bound, it tells
     38  * the driver to collect the data indicated by the type of the query.
     39  */
     40 struct ilo_query {
     41    unsigned type;
     42    unsigned index;
     43 
     44    struct list_head list;
     45 
     46    bool active;
     47 
     48    /* for queries that need to read hardware statistics */
     49    int cmd_len; /* in dwords, as expected by ilo_cp */
     50    bool in_pairs;
     51    struct intel_bo *bo;
     52    int stride, count;
     53    int used;
     54 
     55    /* storage for the collected data */
     56    union pipe_query_result result;
     57 };
     58 
     59 void
     60 ilo_init_query_functions(struct ilo_context *ilo);
     61 
     62 #endif /* ILO_QUERY_H */
     63