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"
38 #include "intel_fbo.h"
40 static int 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 );
102 return dri_bufmgr_check_aperture_space(brw
->sf
.vp_bo
);
105 const struct brw_tracked_state brw_sf_vp
= {
107 .mesa
= (_NEW_VIEWPORT
|
109 .brw
= BRW_NEW_METAOPS
,
112 .prepare
= upload_sf_vp
115 struct brw_sf_unit_key
{
116 unsigned int total_grf
;
117 unsigned int urb_entry_read_length
;
119 unsigned int nr_urb_entries
, urb_size
, sfsize
;
121 GLenum front_face
, cull_face
;
122 GLboolean scissor
, line_smooth
, point_sprite
, point_attenuated
;
128 sf_unit_populate_key(struct brw_context
*brw
, struct brw_sf_unit_key
*key
)
130 memset(key
, 0, sizeof(*key
));
132 /* CACHE_NEW_SF_PROG */
133 key
->total_grf
= brw
->sf
.prog_data
->total_grf
;
134 key
->urb_entry_read_length
= brw
->sf
.prog_data
->urb_read_length
;
136 /* BRW_NEW_URB_FENCE */
137 key
->nr_urb_entries
= brw
->urb
.nr_sf_entries
;
138 key
->urb_size
= brw
->urb
.vsize
;
139 key
->sfsize
= brw
->urb
.sfsize
;
141 key
->scissor
= brw
->attribs
.Scissor
->Enabled
;
142 key
->front_face
= brw
->attribs
.Polygon
->FrontFace
;
144 if (brw
->attribs
.Polygon
->CullFlag
)
145 key
->cull_face
= brw
->attribs
.Polygon
->CullFaceMode
;
147 key
->cull_face
= GL_NONE
;
149 key
->line_width
= brw
->attribs
.Line
->Width
;
150 key
->line_smooth
= brw
->attribs
.Line
->SmoothFlag
;
152 key
->point_sprite
= brw
->attribs
.Point
->PointSprite
;
153 key
->point_size
= brw
->attribs
.Point
->Size
;
154 key
->point_attenuated
= brw
->attribs
.Point
->_Attenuated
;
158 sf_unit_create_from_key(struct brw_context
*brw
, struct brw_sf_unit_key
*key
,
161 struct brw_sf_unit_state sf
;
164 memset(&sf
, 0, sizeof(sf
));
166 sf
.thread0
.grf_reg_count
= ALIGN(key
->total_grf
, 16) / 16 - 1;
167 sf
.thread0
.kernel_start_pointer
= brw
->sf
.prog_bo
->offset
>> 6; /* reloc */
169 sf
.thread1
.floating_point_mode
= BRW_FLOATING_POINT_NON_IEEE_754
;
171 sf
.thread3
.dispatch_grf_start_reg
= 3;
172 sf
.thread3
.urb_entry_read_offset
= 1;
173 sf
.thread3
.urb_entry_read_length
= key
->urb_entry_read_length
;
175 sf
.thread4
.nr_urb_entries
= key
->nr_urb_entries
;
176 sf
.thread4
.urb_entry_allocation_size
= key
->sfsize
- 1;
177 sf
.thread4
.max_threads
= MIN2(12, key
->nr_urb_entries
/ 2) - 1;
179 if (INTEL_DEBUG
& DEBUG_SINGLE_THREAD
)
180 sf
.thread4
.max_threads
= 0;
182 if (INTEL_DEBUG
& DEBUG_STATS
)
183 sf
.thread4
.stats_enable
= 1;
185 /* CACHE_NEW_SF_VP */
186 sf
.sf5
.sf_viewport_state_offset
= brw
->sf
.vp_bo
->offset
>> 5; /* reloc */
188 sf
.sf5
.viewport_transform
= 1;
195 if (key
->front_face
== GL_CCW
)
196 sf
.sf5
.front_winding
= BRW_FRONTWINDING_CCW
;
198 sf
.sf5
.front_winding
= BRW_FRONTWINDING_CW
;
200 switch (key
->cull_face
) {
202 sf
.sf6
.cull_mode
= BRW_CULLMODE_FRONT
;
205 sf
.sf6
.cull_mode
= BRW_CULLMODE_BACK
;
207 case GL_FRONT_AND_BACK
:
208 sf
.sf6
.cull_mode
= BRW_CULLMODE_BOTH
;
211 sf
.sf6
.cull_mode
= BRW_CULLMODE_NONE
;
219 /* XXX use ctx->Const.Min/MaxLineWidth here */
220 sf
.sf6
.line_width
= CLAMP(key
->line_width
, 1.0, 5.0) * (1<<1);
222 sf
.sf6
.line_endcap_aa_region_width
= 1;
223 if (key
->line_smooth
)
224 sf
.sf6
.aa_enable
= 1;
225 else if (sf
.sf6
.line_width
<= 0x2)
226 sf
.sf6
.line_width
= 0;
229 sf
.sf6
.point_rast_rule
= BRW_RASTRULE_UPPER_RIGHT
; /* opengl conventions */
230 /* XXX clamp max depends on AA vs. non-AA */
232 sf
.sf7
.sprite_point
= key
->point_sprite
;
233 sf
.sf7
.point_size
= CLAMP(nearbyint(key
->point_size
), 1, 255) * (1<<3);
234 sf
.sf7
.use_point_size_state
= !key
->point_attenuated
;
235 sf
.sf7
.aa_line_distance_mode
= 0;
237 /* might be BRW_NEW_PRIMITIVE if we have to adjust pv for polygons:
239 sf
.sf7
.trifan_pv
= 2;
240 sf
.sf7
.linestrip_pv
= 1;
241 sf
.sf7
.tristrip_pv
= 2;
242 sf
.sf7
.line_last_pixel_enable
= 0;
244 /* Set bias for OpenGL rasterization rules:
246 sf
.sf6
.dest_org_vbias
= 0x8;
247 sf
.sf6
.dest_org_hbias
= 0x8;
249 bo
= brw_upload_cache(&brw
->cache
, BRW_SF_UNIT
,
255 /* Emit SF program relocation */
256 intel_bo_emit_reloc(bo
,
257 I915_GEM_DOMAIN_INSTRUCTION
, 0,
258 sf
.thread0
.grf_reg_count
<< 1,
259 offsetof(struct brw_sf_unit_state
, thread0
),
262 /* Emit SF viewport relocation */
263 intel_bo_emit_reloc(bo
,
264 I915_GEM_DOMAIN_INSTRUCTION
, 0,
265 sf
.sf5
.front_winding
| (sf
.sf5
.viewport_transform
<< 1),
266 offsetof(struct brw_sf_unit_state
, sf5
),
272 static int upload_sf_unit( struct brw_context
*brw
)
274 struct brw_sf_unit_key key
;
275 dri_bo
*reloc_bufs
[2];
278 sf_unit_populate_key(brw
, &key
);
280 reloc_bufs
[0] = brw
->sf
.prog_bo
;
281 reloc_bufs
[1] = brw
->sf
.vp_bo
;
283 dri_bo_unreference(brw
->sf
.state_bo
);
284 brw
->sf
.state_bo
= brw_search_cache(&brw
->cache
, BRW_SF_UNIT
,
288 if (brw
->sf
.state_bo
== NULL
) {
289 brw
->sf
.state_bo
= sf_unit_create_from_key(brw
, &key
, reloc_bufs
);
293 ret
|= dri_bufmgr_check_aperture_space(reloc_bufs
[0]);
296 ret
|= dri_bufmgr_check_aperture_space(reloc_bufs
[1]);
298 ret
|= dri_bufmgr_check_aperture_space(brw
->sf
.state_bo
);
302 const struct brw_tracked_state brw_sf_unit
= {
304 .mesa
= (_NEW_POLYGON
|
308 .brw
= (BRW_NEW_URB_FENCE
|
310 .cache
= (CACHE_NEW_SF_VP
|
313 .prepare
= upload_sf_unit
,