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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
  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. /**
  29.  * @file
  30.  * Buffer validation.
  31.  *
  32.  * @author Jose Fonseca <jrfonseca@tungstengraphics.com>
  33.  */
  34.  
  35. #ifndef PB_VALIDATE_H_
  36. #define PB_VALIDATE_H_
  37.  
  38.  
  39. #include "pipe/p_compiler.h"
  40. #include "pipe/p_defines.h"
  41.  
  42. #ifdef __cplusplus
  43. extern "C" {
  44. #endif
  45.  
  46.  
  47. struct pb_buffer;
  48. struct pipe_fence_handle;
  49.  
  50.  
  51. /**
  52.  * Buffer validation list.
  53.  *
  54.  * It holds a list of buffers to be validated and fenced when flushing.
  55.  */
  56. struct pb_validate;
  57.  
  58.  
  59. enum pipe_error
  60. pb_validate_add_buffer(struct pb_validate *vl,
  61.                        struct pb_buffer *buf,
  62.                        unsigned flags);
  63.  
  64. enum pipe_error
  65. pb_validate_foreach(struct pb_validate *vl,
  66.                     enum pipe_error (*callback)(struct pb_buffer *buf, void *data),
  67.                     void *data);
  68.  
  69. /**
  70.  * Validate all buffers for hardware access.
  71.  *
  72.  * Should be called right before issuing commands to the hardware.
  73.  */
  74. enum pipe_error
  75. pb_validate_validate(struct pb_validate *vl);
  76.  
  77. /**
  78.  * Fence all buffers and clear the list.
  79.  *
  80.  * Should be called right after issuing commands to the hardware.
  81.  */
  82. void
  83. pb_validate_fence(struct pb_validate *vl,
  84.                   struct pipe_fence_handle *fence);
  85.  
  86. struct pb_validate *
  87. pb_validate_create(void);
  88.  
  89. void
  90. pb_validate_destroy(struct pb_validate *vl);
  91.  
  92.  
  93. #ifdef __cplusplus
  94. }
  95. #endif
  96.  
  97. #endif /*PB_VALIDATE_H_*/
  98.