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 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