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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
  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. /* 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.