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      1 /**************************************************************************
      2  *
      3  * Copyright 2011 The Chromium OS authors.
      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 GOOGLE AND/OR ITS SUPPLIERS BE LIABLE FOR
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     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 /* Fake occlusion queries which return 0, it's better than crashing */
     29 
     30 #include "pipe/p_compiler.h"
     31 
     32 #include "util/u_memory.h"
     33 
     34 #include "i915_context.h"
     35 #include "i915_query.h"
     36 
     37 struct i915_query
     38 {
     39    unsigned query;
     40 };
     41 
     42 static struct pipe_query *i915_create_query(struct pipe_context *ctx,
     43                                             unsigned query_type)
     44 {
     45    struct i915_query *query = CALLOC_STRUCT( i915_query );
     46 
     47    return (struct pipe_query *)query;
     48 }
     49 
     50 static void i915_destroy_query(struct pipe_context *ctx,
     51                                struct pipe_query *query)
     52 {
     53    FREE(query);
     54 }
     55 
     56 static void i915_begin_query(struct pipe_context *ctx,
     57                              struct pipe_query *query)
     58 {
     59 }
     60 
     61 static void i915_end_query(struct pipe_context *ctx, struct pipe_query *query)
     62 {
     63 }
     64 
     65 static boolean i915_get_query_result(struct pipe_context *ctx,
     66                                      struct pipe_query *query,
     67                                      boolean wait,
     68                                      union pipe_query_result *vresult)
     69 {
     70    uint64_t *result = (uint64_t*)vresult;
     71 
     72    /* 2* viewport Max */
     73    *result = 512*1024*1024;
     74    return TRUE;
     75 }
     76 
     77 void
     78 i915_init_query_functions(struct i915_context *i915)
     79 {
     80    i915->base.create_query = i915_create_query;
     81    i915->base.destroy_query = i915_destroy_query;
     82    i915->base.begin_query = i915_begin_query;
     83    i915->base.end_query = i915_end_query;
     84    i915->base.get_query_result = i915_get_query_result;
     85 }
     86 
     87