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>
34 #include "brw_context.h"
35 #include "brw_state.h"
36 #include "brw_defines.h"
37 #include "main/macros.h"
38 #include "intel_fbo.h"
40 static void upload_sf_vp(struct brw_context
*brw
)
42 GLcontext
*ctx
= &brw
->intel
.ctx
;
43 const GLfloat depth_scale
= 1.0F
/ ctx
->DrawBuffer
->_DepthMaxF
;
44 struct brw_sf_viewport sfv
;
45 struct intel_renderbuffer
*irb
=
46 intel_renderbuffer(ctx
->DrawBuffer
->_ColorDrawBuffers
[0]);
47 GLfloat y_scale
, y_bias
;
49 memset(&sfv
, 0, sizeof(sfv
));
51 if (ctx
->DrawBuffer
->Name
) {
52 /* User-created FBO */
53 if (irb
&& !irb
->RenderToTexture
) {
55 y_bias
= ctx
->DrawBuffer
->Height
;
62 y_bias
= ctx
->DrawBuffer
->Height
;
65 /* _NEW_VIEWPORT, BRW_NEW_METAOPS */
67 if (!brw
->metaops
.active
) {
68 const GLfloat
*v
= ctx
->Viewport
._WindowMap
.m
;
70 sfv
.viewport
.m00
= v
[MAT_SX
];
71 sfv
.viewport
.m11
= v
[MAT_SY
] * y_scale
;
72 sfv
.viewport
.m22
= v
[MAT_SZ
] * depth_scale
;
73 sfv
.viewport
.m30
= v
[MAT_TX
];
74 sfv
.viewport
.m31
= v
[MAT_TY
] * y_scale
+ y_bias
;
75 sfv
.viewport
.m32
= v
[MAT_TZ
] * depth_scale
;
78 sfv
.viewport
.m11
= - 1;
81 sfv
.viewport
.m31
= ctx
->DrawBuffer
->Height
;
87 /* The scissor only needs to handle the intersection of drawable and
88 * scissor rect. Clipping to the boundaries of static shared buffers
89 * for front/back/depth is covered by looping over cliprects in brw_draw.c.
91 * Note that the hardware's coordinates are inclusive, while Mesa's min is
92 * inclusive but max is exclusive.
94 sfv
.scissor
.xmin
= ctx
->DrawBuffer
->_Xmin
;
95 sfv
.scissor
.xmax
= ctx
->DrawBuffer
->_Xmax
- 1;
96 sfv
.scissor
.ymin
= ctx
->DrawBuffer
->Height
- ctx
->DrawBuffer
->_Ymax
;
97 sfv
.scissor
.ymax
= ctx
->DrawBuffer
->Height
- ctx
->DrawBuffer
->_Ymin
- 1;
99 dri_bo_unreference(brw
->sf
.vp_bo
);
100 brw
->sf
.vp_bo
= brw_cache_data( &brw
->cache
, BRW_SF_VP
, &sfv
, NULL
, 0 );
103 const struct brw_tracked_state brw_sf_vp
= {
105 .mesa
= (_NEW_VIEWPORT
|
107 .brw
= BRW_NEW_METAOPS
,
110 .prepare
= upload_sf_vp
113 struct brw_sf_unit_key
{
114 unsigned int total_grf
;
115 unsigned int urb_entry_read_length
;
117 unsigned int nr_urb_entries
, urb_size
, sfsize
;
119 GLenum front_face
, cull_face
;
120 GLboolean scissor
, line_smooth
, point_sprite
, point_attenuated
;
126 sf_unit_populate_key(struct brw_context
*brw
, struct brw_sf_unit_key
*key
)
128 memset(key
, 0, sizeof(*key
));
130 /* CACHE_NEW_SF_PROG */
131 key
->total_grf
= brw
->sf
.prog_data
->total_grf
;
132 key
->urb_entry_read_length
= brw
->sf
.prog_data
->urb_read_length
;
134 /* BRW_NEW_URB_FENCE */
135 key
->nr_urb_entries
= brw
->urb
.nr_sf_entries
;
136 key
->urb_size
= brw
->urb
.vsize
;
137 key
->sfsize
= brw
->urb
.sfsize
;
139 key
->scissor
= brw
->attribs
.Scissor
->Enabled
;
140 key
->front_face
= brw
->attribs
.Polygon
->FrontFace
;
142 if (brw
->attribs
.Polygon
->CullFlag
)
143 key
->cull_face
= brw
->attribs
.Polygon
->CullFaceMode
;
145 key
->cull_face
= GL_NONE
;
147 key
->line_width
= brw
->attribs
.Line
->Width
;
148 key
->line_smooth
= brw
->attribs
.Line
->SmoothFlag
;
150 key
->point_sprite
= brw
->attribs
.Point
->PointSprite
;
151 key
->point_size
= brw
->attribs
.Point
->Size
;
152 key
->point_attenuated
= brw
->attribs
.Point
->_Attenuated
;
156 sf_unit_create_from_key(struct brw_context
*brw
, struct brw_sf_unit_key
*key
,
159 struct brw_sf_unit_state sf
;
162 memset(&sf
, 0, sizeof(sf
));
164 sf
.thread0
.grf_reg_count
= ALIGN(key
->total_grf
, 16) / 16 - 1;
165 sf
.thread0
.kernel_start_pointer
= brw
->sf
.prog_bo
->offset
>> 6; /* reloc */
167 sf
.thread1
.floating_point_mode
= BRW_FLOATING_POINT_NON_IEEE_754
;
169 sf
.thread3
.dispatch_grf_start_reg
= 3;
170 sf
.thread3
.urb_entry_read_offset
= 1;
171 sf
.thread3
.urb_entry_read_length
= key
->urb_entry_read_length
;
173 sf
.thread4
.nr_urb_entries
= key
->nr_urb_entries
;
174 sf
.thread4
.urb_entry_allocation_size
= key
->sfsize
- 1;
175 /* Each SF thread produces 1 PUE, and there can be up to 24 threads */
176 sf
.thread4
.max_threads
= MIN2(24, key
->nr_urb_entries
) - 1;
178 if (INTEL_DEBUG
& DEBUG_SINGLE_THREAD
)
179 sf
.thread4
.max_threads
= 0;
181 if (INTEL_DEBUG
& DEBUG_STATS
)
182 sf
.thread4
.stats_enable
= 1;
184 /* CACHE_NEW_SF_VP */
185 sf
.sf5
.sf_viewport_state_offset
= brw
->sf
.vp_bo
->offset
>> 5; /* reloc */
187 sf
.sf5
.viewport_transform
= 1;
194 if (key
->front_face
== GL_CCW
)
195 sf
.sf5
.front_winding
= BRW_FRONTWINDING_CCW
;
197 sf
.sf5
.front_winding
= BRW_FRONTWINDING_CW
;
199 switch (key
->cull_face
) {
201 sf
.sf6
.cull_mode
= BRW_CULLMODE_FRONT
;
204 sf
.sf6
.cull_mode
= BRW_CULLMODE_BACK
;
206 case GL_FRONT_AND_BACK
:
207 sf
.sf6
.cull_mode
= BRW_CULLMODE_BOTH
;
210 sf
.sf6
.cull_mode
= BRW_CULLMODE_NONE
;
218 /* XXX use ctx->Const.Min/MaxLineWidth here */
219 sf
.sf6
.line_width
= CLAMP(key
->line_width
, 1.0, 5.0) * (1<<1);
221 sf
.sf6
.line_endcap_aa_region_width
= 1;
222 if (key
->line_smooth
)
223 sf
.sf6
.aa_enable
= 1;
224 else if (sf
.sf6
.line_width
<= 0x2)
225 sf
.sf6
.line_width
= 0;
228 sf
.sf6
.point_rast_rule
= BRW_RASTRULE_UPPER_RIGHT
; /* opengl conventions */
229 /* XXX clamp max depends on AA vs. non-AA */
231 sf
.sf7
.sprite_point
= key
->point_sprite
;
232 sf
.sf7
.point_size
= CLAMP(nearbyint(key
->point_size
), 1, 255) * (1<<3);
233 sf
.sf7
.use_point_size_state
= !key
->point_attenuated
;
234 sf
.sf7
.aa_line_distance_mode
= 0;
236 /* might be BRW_NEW_PRIMITIVE if we have to adjust pv for polygons:
238 sf
.sf7
.trifan_pv
= 2;
239 sf
.sf7
.linestrip_pv
= 1;
240 sf
.sf7
.tristrip_pv
= 2;
241 sf
.sf7
.line_last_pixel_enable
= 0;
243 /* Set bias for OpenGL rasterization rules:
245 sf
.sf6
.dest_org_vbias
= 0x8;
246 sf
.sf6
.dest_org_hbias
= 0x8;
248 bo
= brw_upload_cache(&brw
->cache
, BRW_SF_UNIT
,
254 /* Emit SF program relocation */
255 dri_bo_emit_reloc(bo
,
256 I915_GEM_DOMAIN_INSTRUCTION
, 0,
257 sf
.thread0
.grf_reg_count
<< 1,
258 offsetof(struct brw_sf_unit_state
, thread0
),
261 /* Emit SF viewport relocation */
262 dri_bo_emit_reloc(bo
,
263 I915_GEM_DOMAIN_INSTRUCTION
, 0,
264 sf
.sf5
.front_winding
| (sf
.sf5
.viewport_transform
<< 1),
265 offsetof(struct brw_sf_unit_state
, sf5
),
271 static void upload_sf_unit( struct brw_context
*brw
)
273 struct brw_sf_unit_key key
;
274 dri_bo
*reloc_bufs
[2];
276 sf_unit_populate_key(brw
, &key
);
278 reloc_bufs
[0] = brw
->sf
.prog_bo
;
279 reloc_bufs
[1] = brw
->sf
.vp_bo
;
281 dri_bo_unreference(brw
->sf
.state_bo
);
282 brw
->sf
.state_bo
= brw_search_cache(&brw
->cache
, BRW_SF_UNIT
,
286 if (brw
->sf
.state_bo
== NULL
) {
287 brw
->sf
.state_bo
= sf_unit_create_from_key(brw
, &key
, reloc_bufs
);
291 const struct brw_tracked_state brw_sf_unit
= {
293 .mesa
= (_NEW_POLYGON
|
297 .brw
= (BRW_NEW_URB_FENCE
|
299 .cache
= (CACHE_NEW_SF_VP
|
302 .prepare
= upload_sf_unit
,