2 Copyright (C) Intel Corp. 2006. All Rights Reserved.
3 Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
4 develop this 3D driver.
6 Permission is hereby granted, free of charge, to any person obtaining
7 a 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, sublicense, 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
16 portions of the Software.
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **********************************************************************/
29 * Keith Whitwell <keith@tungstengraphics.com>
33 #include "brw_context.h"
34 #include "brw_state.h"
35 #include "brw_defines.h"
38 struct sane_viewport
{
47 static void calc_sane_viewport( const struct pipe_viewport_state
*vp
,
48 struct sane_viewport
*svp
)
50 /* XXX fix me, obviously.
60 static enum pipe_error
prepare_cc_vp( struct brw_context
*brw
)
62 struct brw_cc_viewport ccv
;
63 struct sane_viewport svp
;
66 memset(&ccv
, 0, sizeof(ccv
));
68 /* PIPE_NEW_VIEWPORT */
69 calc_sane_viewport( &brw
->curr
.vp
, &svp
);
71 ccv
.min_depth
= svp
.near
;
72 ccv
.max_depth
= svp
.far
;
74 ret
= brw_cache_data( &brw
->cache
, BRW_CC_VP
, &ccv
, NULL
, 0,
82 const struct brw_tracked_state brw_cc_vp
= {
84 .mesa
= PIPE_NEW_VIEWPORT
,
85 .brw
= BRW_NEW_CONTEXT
,
88 .prepare
= prepare_cc_vp
91 struct brw_cc_unit_key
{
101 /* A long-winded way to OR two unsigned integers together:
103 static INLINE
struct brw_cc3
104 combine_cc3( struct brw_cc3 a
, struct brw_cc3 b
)
106 union { struct brw_cc3 cc3
; unsigned i
; } ca
, cb
;
114 cc_unit_populate_key(const struct brw_context
*brw
,
115 struct brw_cc_unit_key
*key
)
117 key
->cc0
= brw
->curr
.zstencil
->cc0
;
118 key
->cc1
= brw
->curr
.zstencil
->cc1
;
119 key
->cc2
= brw
->curr
.zstencil
->cc2
;
120 key
->cc3
= combine_cc3( brw
->curr
.zstencil
->cc3
, brw
->curr
.blend
->cc3
);
121 key
->cc5
= brw
->curr
.blend
->cc5
;
122 key
->cc6
= brw
->curr
.blend
->cc6
;
123 key
->cc7
= brw
->curr
.zstencil
->cc7
;
127 * Creates the state cache entry for the given CC unit key.
129 static enum pipe_error
130 cc_unit_create_from_key(struct brw_context
*brw
,
131 struct brw_cc_unit_key
*key
,
132 struct brw_winsys_buffer
**bo_out
)
134 struct brw_cc_unit_state cc
;
137 memset(&cc
, 0, sizeof(cc
));
144 /* CACHE_NEW_CC_VP */
145 cc
.cc4
.cc_viewport_state_offset
= *(brw
->cc
.vp_bo
->offset
) >> 5; /* reloc */
151 ret
= brw_upload_cache(&brw
->cache
, BRW_CC_UNIT
,
161 /* Emit CC viewport relocation */
162 ret
= brw
->sws
->bo_emit_reloc(*bo_out
,
165 offsetof(struct brw_cc_unit_state
, cc4
),
173 static int prepare_cc_unit( struct brw_context
*brw
)
175 struct brw_cc_unit_key key
;
178 cc_unit_populate_key(brw
, &key
);
180 if (brw_search_cache(&brw
->cache
, BRW_CC_UNIT
,
187 ret
= cc_unit_create_from_key(brw
, &key
,
195 const struct brw_tracked_state brw_cc_unit
= {
197 .mesa
= PIPE_NEW_DEPTH_STENCIL_ALPHA
| PIPE_NEW_BLEND
,
199 .cache
= CACHE_NEW_CC_VP
201 .prepare
= prepare_cc_unit
,