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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 INTEL_BUFFEROBJ_H
  29. #define INTEL_BUFFEROBJ_H
  30.  
  31. #include "main/mtypes.h"
  32.  
  33. struct brw_context;
  34. struct gl_buffer_object;
  35.  
  36.  
  37. /**
  38.  * Intel vertex/pixel buffer object, derived from Mesa's gl_buffer_object.
  39.  */
  40. struct intel_buffer_object
  41. {
  42.    struct gl_buffer_object Base;
  43.    drm_intel_bo *buffer;     /* the low-level buffer manager's buffer handle */
  44.    GLuint offset;            /* any offset into that buffer */
  45.  
  46.    drm_intel_bo *range_map_bo;
  47.    void *range_map_buffer;
  48.    unsigned int range_map_offset;
  49. };
  50.  
  51.  
  52. /* Get the bm buffer associated with a GL bufferobject:
  53.  */
  54. drm_intel_bo *intel_bufferobj_buffer(struct brw_context *brw,
  55.                                      struct intel_buffer_object *obj,
  56.                                      GLuint flag);
  57. drm_intel_bo *intel_bufferobj_source(struct brw_context *brw,
  58.                                      struct intel_buffer_object *obj,
  59.                                      GLuint align,
  60.                                      GLuint *offset);
  61.  
  62. void intel_upload_data(struct brw_context *brw,
  63.                        const void *ptr, GLuint size, GLuint align,
  64.                        drm_intel_bo **return_bo,
  65.                        GLuint *return_offset);
  66.  
  67. void *intel_upload_map(struct brw_context *brw,
  68.                        GLuint size, GLuint align);
  69. void intel_upload_unmap(struct brw_context *brw,
  70.                         const void *ptr, GLuint size, GLuint align,
  71.                         drm_intel_bo **return_bo,
  72.                         GLuint *return_offset);
  73.  
  74. void intel_upload_finish(struct brw_context *brw);
  75.  
  76. /* Hook the bufferobject implementation into mesa:
  77.  */
  78. void intelInitBufferObjectFuncs(struct dd_function_table *functions);
  79.  
  80. static inline struct intel_buffer_object *
  81. intel_buffer_object(struct gl_buffer_object *obj)
  82. {
  83.    return (struct intel_buffer_object *) obj;
  84. }
  85.  
  86. #endif
  87.