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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 intel_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.    /** System memory buffer data, if not using a BO to store the data. */
  47.    void *sys_buffer;
  48.  
  49.    drm_intel_bo *range_map_bo;
  50.    void *range_map_buffer;
  51.    unsigned int range_map_offset;
  52.    GLsizei range_map_size;
  53.  
  54.    bool source;
  55. };
  56.  
  57.  
  58. /* Get the bm buffer associated with a GL bufferobject:
  59.  */
  60. drm_intel_bo *intel_bufferobj_buffer(struct intel_context *intel,
  61.                                      struct intel_buffer_object *obj,
  62.                                      GLuint flag);
  63. drm_intel_bo *intel_bufferobj_source(struct intel_context *intel,
  64.                                      struct intel_buffer_object *obj,
  65.                                      GLuint align,
  66.                                      GLuint *offset);
  67.  
  68. void intel_upload_data(struct intel_context *intel,
  69.                        const void *ptr, GLuint size, GLuint align,
  70.                        drm_intel_bo **return_bo,
  71.                        GLuint *return_offset);
  72.  
  73. void intel_upload_finish(struct intel_context *intel);
  74.  
  75. /* Hook the bufferobject implementation into mesa:
  76.  */
  77. void intelInitBufferObjectFuncs(struct dd_function_table *functions);
  78.  
  79. static inline struct intel_buffer_object *
  80. intel_buffer_object(struct gl_buffer_object *obj)
  81. {
  82.    return (struct intel_buffer_object *) obj;
  83. }
  84.  
  85. #endif
  86.