src/mesa/drivers/dri/i965/intel_buffer_objects.h

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