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>
32 #include "util/u_math.h"
34 #include "pipe/p_state.h"
36 #include "brw_context.h"
37 #include "brw_state.h"
38 #include "brw_defines.h"
39 #include "brw_debug.h"
40 #include "brw_pipe_rast.h"
42 static enum pipe_error
upload_sf_vp(struct brw_context
*brw
)
44 const struct pipe_viewport_state
*vp
= &brw
->curr
.viewport
;
45 const struct pipe_scissor_state
*scissor
= &brw
->curr
.scissor
;
46 struct brw_sf_viewport sfv
;
49 memset(&sfv
, 0, sizeof(sfv
));
51 /* PIPE_NEW_VIEWPORT, PIPE_NEW_SCISSOR */
53 sfv
.viewport
.m00
= vp
->scale
[0];
54 sfv
.viewport
.m11
= vp
->scale
[1];
55 sfv
.viewport
.m22
= vp
->scale
[2];
56 sfv
.viewport
.m30
= vp
->translate
[0];
57 sfv
.viewport
.m31
= vp
->translate
[1];
58 sfv
.viewport
.m32
= vp
->translate
[2];
60 sfv
.scissor
.xmin
= scissor
->minx
;
61 sfv
.scissor
.xmax
= scissor
->maxx
- 1; /* ? */
62 sfv
.scissor
.ymin
= scissor
->miny
;
63 sfv
.scissor
.ymax
= scissor
->maxy
- 1; /* ? */
65 ret
= brw_cache_data( &brw
->cache
, BRW_SF_VP
, &sfv
, NULL
, 0,
73 const struct brw_tracked_state brw_sf_vp
= {
75 .mesa
= (PIPE_NEW_VIEWPORT
|
80 .prepare
= upload_sf_vp
83 struct brw_sf_unit_key
{
84 unsigned int total_grf
;
85 unsigned int urb_entry_read_length
;
86 unsigned int nr_urb_entries
, urb_size
, sfsize
;
89 unsigned line_smooth
:1;
90 unsigned point_sprite
:1;
91 unsigned point_attenuated
:1;
94 unsigned flatshade_first
:1;
95 unsigned gl_rasterization_rules
:1;
96 unsigned line_last_pixel_enable
:1;
102 sf_unit_populate_key(struct brw_context
*brw
, struct brw_sf_unit_key
*key
)
104 const struct pipe_rasterizer_state
*rast
= &brw
->curr
.rast
->templ
;
105 memset(key
, 0, sizeof(*key
));
107 /* CACHE_NEW_SF_PROG */
108 key
->total_grf
= brw
->sf
.prog_data
->total_grf
;
109 key
->urb_entry_read_length
= brw
->sf
.prog_data
->urb_read_length
;
111 /* BRW_NEW_URB_FENCE */
112 key
->nr_urb_entries
= brw
->urb
.nr_sf_entries
;
113 key
->urb_size
= brw
->urb
.vsize
;
114 key
->sfsize
= brw
->urb
.sfsize
;
117 key
->scissor
= rast
->scissor
;
118 key
->front_ccw
= rast
->front_ccw
;
119 key
->cull_face
= rast
->cull_face
;
120 key
->line_smooth
= rast
->line_smooth
;
121 key
->line_width
= rast
->line_width
;
122 key
->flatshade_first
= rast
->flatshade_first
;
123 key
->line_last_pixel_enable
= rast
->line_last_pixel
;
124 key
->gl_rasterization_rules
= rast
->gl_rasterization_rules
;
126 key
->point_sprite
= rast
->sprite_coord_enable
? 1 : 0;
127 key
->point_attenuated
= rast
->point_size_per_vertex
;
129 key
->point_size
= rast
->point_size
;
132 static enum pipe_error
133 sf_unit_create_from_key(struct brw_context
*brw
,
134 struct brw_sf_unit_key
*key
,
135 struct brw_winsys_reloc
*reloc
,
136 struct brw_winsys_buffer
**bo_out
)
138 struct brw_sf_unit_state sf
;
140 int chipset_max_threads
;
141 memset(&sf
, 0, sizeof(sf
));
143 sf
.thread0
.grf_reg_count
= align(key
->total_grf
, 16) / 16 - 1;
145 sf
.thread0
.kernel_start_pointer
= 0;
147 sf
.thread1
.floating_point_mode
= BRW_FLOATING_POINT_NON_IEEE_754
;
149 sf
.thread3
.dispatch_grf_start_reg
= 3;
152 sf
.thread3
.urb_entry_read_offset
= 3;
154 sf
.thread3
.urb_entry_read_offset
= 1;
156 sf
.thread3
.urb_entry_read_length
= key
->urb_entry_read_length
;
158 sf
.thread4
.nr_urb_entries
= key
->nr_urb_entries
;
159 sf
.thread4
.urb_entry_allocation_size
= key
->sfsize
- 1;
161 /* Each SF thread produces 1 PUE, and there can be up to 24(Pre-IGDNG) or
165 chipset_max_threads
= 48;
167 chipset_max_threads
= 24;
169 sf
.thread4
.max_threads
= MIN2(chipset_max_threads
, key
->nr_urb_entries
) - 1;
171 if (BRW_DEBUG
& DEBUG_SINGLE_THREAD
)
172 sf
.thread4
.max_threads
= 0;
174 if (BRW_DEBUG
& DEBUG_STATS
)
175 sf
.thread4
.stats_enable
= 1;
177 /* CACHE_NEW_SF_VP */
179 sf
.sf5
.sf_viewport_state_offset
= 0;
181 sf
.sf5
.viewport_transform
= 1;
187 sf
.sf5
.front_winding
= BRW_FRONTWINDING_CCW
;
189 sf
.sf5
.front_winding
= BRW_FRONTWINDING_CW
;
191 switch (key
->cull_face
) {
192 case PIPE_FACE_FRONT
:
193 sf
.sf6
.cull_mode
= BRW_CULLMODE_FRONT
;
196 sf
.sf6
.cull_mode
= BRW_CULLMODE_BACK
;
198 case PIPE_FACE_FRONT_AND_BACK
:
199 sf
.sf6
.cull_mode
= BRW_CULLMODE_BOTH
;
202 sf
.sf6
.cull_mode
= BRW_CULLMODE_NONE
;
206 sf
.sf6
.cull_mode
= BRW_CULLMODE_NONE
;
211 /* XXX use ctx->Const.Min/MaxLineWidth here */
212 sf
.sf6
.line_width
= CLAMP(key
->line_width
, 1.0, 5.0) * (1<<1);
214 sf
.sf6
.line_endcap_aa_region_width
= 1;
215 if (key
->line_smooth
)
216 sf
.sf6
.aa_enable
= 1;
217 else if (sf
.sf6
.line_width
<= 0x2)
218 sf
.sf6
.line_width
= 0;
220 /* XXX: gl_rasterization_rules? something else?
222 sf
.sf6
.point_rast_rule
= BRW_RASTRULE_UPPER_RIGHT
;
223 sf
.sf6
.point_rast_rule
= BRW_RASTRULE_LOWER_RIGHT
;
224 sf
.sf6
.point_rast_rule
= 1;
226 /* XXX clamp max depends on AA vs. non-AA */
229 sf
.sf7
.sprite_point
= key
->point_sprite
;
230 sf
.sf7
.point_size
= CLAMP(rint(key
->point_size
), 1, 255) * (1<<3);
231 sf
.sf7
.use_point_size_state
= !key
->point_attenuated
;
232 sf
.sf7
.aa_line_distance_mode
= 0;
234 /* might be BRW_NEW_PRIMITIVE if we have to adjust pv for polygons:
236 if (!key
->flatshade_first
) {
237 sf
.sf7
.trifan_pv
= 2;
238 sf
.sf7
.linestrip_pv
= 1;
239 sf
.sf7
.tristrip_pv
= 2;
241 sf
.sf7
.trifan_pv
= 1;
242 sf
.sf7
.linestrip_pv
= 0;
243 sf
.sf7
.tristrip_pv
= 0;
246 sf
.sf7
.line_last_pixel_enable
= key
->line_last_pixel_enable
;
248 /* Set bias for OpenGL rasterization rules:
250 if (key
->gl_rasterization_rules
) {
251 sf
.sf6
.dest_org_vbias
= 0x8;
252 sf
.sf6
.dest_org_hbias
= 0x8;
255 sf
.sf6
.dest_org_vbias
= 0x0;
256 sf
.sf6
.dest_org_hbias
= 0x0;
259 ret
= brw_upload_cache(&brw
->cache
, BRW_SF_UNIT
,
272 static enum pipe_error
upload_sf_unit( struct brw_context
*brw
)
274 struct brw_sf_unit_key key
;
275 struct brw_winsys_reloc reloc
[2];
277 unsigned viewport_transform
;
278 unsigned front_winding
;
281 sf_unit_populate_key(brw
, &key
);
283 /* XXX: cut this crap and pre calculate the key:
285 total_grf
= (align(key
.total_grf
, 16) / 16 - 1);
286 viewport_transform
= 1;
287 front_winding
= (key
.front_ccw
?
288 BRW_FRONTWINDING_CCW
:
289 BRW_FRONTWINDING_CW
);
291 /* Emit SF program relocation */
292 make_reloc(&reloc
[0],
295 offsetof(struct brw_sf_unit_state
, thread0
),
298 /* Emit SF viewport relocation */
299 make_reloc(&reloc
[1],
301 front_winding
| (viewport_transform
<< 1),
302 offsetof(struct brw_sf_unit_state
, sf5
),
306 if (brw_search_cache(&brw
->cache
, BRW_SF_UNIT
,
314 ret
= sf_unit_create_from_key(brw
, &key
,
323 const struct brw_tracked_state brw_sf_unit
= {
325 .mesa
= (PIPE_NEW_RAST
),
326 .brw
= BRW_NEW_URB_FENCE
,
327 .cache
= (CACHE_NEW_SF_VP
|
330 .prepare
= upload_sf_unit
,