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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2005 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. #ifndef ST_CB_BUFFEROBJECTS_H
  29. #define ST_CB_BUFFEROBJECTS_H
  30.  
  31. #include "main/compiler.h"
  32. #include "main/mtypes.h"
  33.  
  34. struct dd_function_table;
  35. struct pipe_resource;
  36. struct st_context;
  37.  
  38. /**
  39.  * State_tracker vertex/pixel buffer object, derived from Mesa's
  40.  * gl_buffer_object.
  41.  */
  42. struct st_buffer_object
  43. {
  44.    struct gl_buffer_object Base;
  45.    struct pipe_resource *buffer;     /* GPU storage */
  46.    struct pipe_transfer *transfer; /* In-progress map information */
  47. };
  48.  
  49.  
  50. /** cast wrapper */
  51. static INLINE struct st_buffer_object *
  52. st_buffer_object(struct gl_buffer_object *obj)
  53. {
  54.    return (struct st_buffer_object *) obj;
  55. }
  56.  
  57.  
  58. extern void
  59. st_bufferobj_validate_usage(struct st_context *st,
  60.                             struct st_buffer_object *obj,
  61.                             unsigned usage);
  62.  
  63.  
  64. extern void
  65. st_init_bufferobject_functions(struct dd_function_table *functions);
  66.  
  67.  
  68. #endif
  69.