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 drm_intel_bo
*buffer
; /* the low-level buffer manager's buffer handle */
45 GLuint offset
; /* any offset into that buffer */
47 /** System memory buffer data, if not using a BO to store the data. */
50 struct intel_region
*region
; /* Is there a zero-copy texture
51 associated with this (pixel)
54 drm_intel_bo
*range_map_bo
;
55 void *range_map_buffer
;
56 unsigned int range_map_offset
;
57 GLsizei range_map_size
;
64 /* Get the bm buffer associated with a GL bufferobject:
66 drm_intel_bo
*intel_bufferobj_buffer(struct intel_context
*intel
,
67 struct intel_buffer_object
*obj
,
69 drm_intel_bo
*intel_bufferobj_source(struct intel_context
*intel
,
70 struct intel_buffer_object
*obj
,
74 void intel_upload_data(struct intel_context
*intel
,
75 const void *ptr
, GLuint size
, GLuint align
,
76 drm_intel_bo
**return_bo
,
77 GLuint
*return_offset
);
79 void *intel_upload_map(struct intel_context
*intel
,
80 GLuint size
, GLuint align
);
81 void intel_upload_unmap(struct intel_context
*intel
,
82 const void *ptr
, GLuint size
, GLuint align
,
83 drm_intel_bo
**return_bo
,
84 GLuint
*return_offset
);
86 void intel_upload_finish(struct intel_context
*intel
);
88 /* Hook the bufferobject implementation into mesa:
90 void intelInitBufferObjectFuncs(struct dd_function_table
*functions
);
94 /* Are the obj->Name tests necessary? Unfortunately yes, mesa
95 * allocates a couple of gl_buffer_object structs statically, and
96 * the Name == 0 test is the only way to identify them and avoid
97 * casting them erroneously to our structs.
99 static INLINE
struct intel_buffer_object
*
100 intel_buffer_object(struct gl_buffer_object
*obj
)
102 return (struct intel_buffer_object
*) obj
;
105 /* Helpers for zerocopy image uploads. See also intel_regions.h:
107 void intel_bufferobj_cow(struct intel_context
*intel
,
108 struct intel_buffer_object
*intel_obj
);
109 void intel_bufferobj_release_region(struct intel_buffer_object
*intel_obj
);