1 /**************************************************************************
3 * Copyright 2005 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #ifndef INTEL_BUFFEROBJ_H
29 #define INTEL_BUFFEROBJ_H
31 #include "main/mtypes.h"
35 struct gl_buffer_object
;
39 * Intel vertex/pixel buffer object, derived from Mesa's gl_buffer_object.
41 struct intel_buffer_object
43 struct gl_buffer_object Base
;
44 dri_bo
*buffer
; /* the low-level buffer manager's buffer handle */
46 struct intel_region
*region
; /* Is there a zero-copy texture
47 associated with this (pixel)
53 /* Get the bm buffer associated with a GL bufferobject:
55 dri_bo
*intel_bufferobj_buffer(struct intel_context
*intel
,
56 struct intel_buffer_object
59 /* Hook the bufferobject implementation into mesa:
61 void intel_bufferobj_init(struct intel_context
*intel
);
65 /* Are the obj->Name tests necessary? Unfortunately yes, mesa
66 * allocates a couple of gl_buffer_object structs statically, and
67 * the Name == 0 test is the only way to identify them and avoid
68 * casting them erroneously to our structs.
70 static INLINE
struct intel_buffer_object
*
71 intel_buffer_object(struct gl_buffer_object
*obj
)
74 return (struct intel_buffer_object
*) obj
;
79 /* Helpers for zerocopy image uploads. See also intel_regions.h:
81 void intel_bufferobj_cow(struct intel_context
*intel
,
82 struct intel_buffer_object
*intel_obj
);
83 void intel_bufferobj_release_region(struct intel_context
*intel
,
84 struct intel_buffer_object
*intel_obj
);