2 * Copyright © 2011 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 #include "brw_context.h"
25 #include "brw_state.h"
26 #include "brw_defines.h"
28 #include "main/macros.h"
29 #include "main/fbobject.h"
30 #include "intel_batchbuffer.h"
33 upload_sbe_state(struct brw_context
*brw
)
35 struct gl_context
*ctx
= &brw
->ctx
;
36 /* BRW_NEW_FS_PROG_DATA */
37 uint32_t num_outputs
= brw
->wm
.prog_data
->num_varying_inputs
;
39 uint32_t point_sprite_enables
;
40 uint32_t flat_enables
;
42 const int urb_entry_read_offset
= BRW_SF_URB_ENTRY_READ_OFFSET
;
43 uint16_t attr_overrides
[16];
45 bool render_to_fbo
= _mesa_is_user_fbo(ctx
->DrawBuffer
);
46 uint32_t point_sprite_origin
;
48 /* FINISHME: Attribute Swizzle Control Mode? */
49 dw1
= GEN7_SBE_SWIZZLE_ENABLE
| num_outputs
<< GEN7_SBE_NUM_OUTPUTS_SHIFT
;
53 * Window coordinates in an FBO are inverted, which means point
54 * sprite origin must be inverted.
56 if ((ctx
->Point
.SpriteOrigin
== GL_LOWER_LEFT
) != render_to_fbo
) {
57 point_sprite_origin
= GEN6_SF_POINT_SPRITE_LOWERLEFT
;
59 point_sprite_origin
= GEN6_SF_POINT_SPRITE_UPPERLEFT
;
61 dw1
|= point_sprite_origin
;
63 /* BRW_NEW_VUE_MAP_GEOM_OUT | BRW_NEW_FRAGMENT_PROGRAM
64 * _NEW_POINT | _NEW_LIGHT | _NEW_PROGRAM | BRW_NEW_FS_PROG_DATA
66 uint32_t urb_entry_read_length
;
67 calculate_attr_overrides(brw
, attr_overrides
, &point_sprite_enables
,
68 &flat_enables
, &urb_entry_read_length
);
69 dw1
|= urb_entry_read_length
<< GEN7_SBE_URB_ENTRY_READ_LENGTH_SHIFT
|
70 urb_entry_read_offset
<< GEN7_SBE_URB_ENTRY_READ_OFFSET_SHIFT
;
73 OUT_BATCH(_3DSTATE_SBE
<< 16 | (14 - 2));
76 /* Output dwords 2 through 9 */
77 for (i
= 0; i
< 8; i
++) {
78 OUT_BATCH(attr_overrides
[i
* 2] | attr_overrides
[i
* 2 + 1] << 16);
81 OUT_BATCH(point_sprite_enables
); /* dw10 */
82 OUT_BATCH(flat_enables
);
83 OUT_BATCH(0); /* wrapshortest enables 0-7 */
84 OUT_BATCH(0); /* wrapshortest enables 8-15 */
88 const struct brw_tracked_state gen7_sbe_state
= {
90 .mesa
= _NEW_BUFFERS
|
94 .brw
= BRW_NEW_CONTEXT
|
95 BRW_NEW_FRAGMENT_PROGRAM
|
96 BRW_NEW_FS_PROG_DATA
|
97 BRW_NEW_GEOMETRY_PROGRAM
|
99 BRW_NEW_VUE_MAP_GEOM_OUT
,
101 .emit
= upload_sbe_state
,
105 upload_sf_state(struct brw_context
*brw
)
107 struct gl_context
*ctx
= &brw
->ctx
;
108 uint32_t dw1
, dw2
, dw3
;
111 bool render_to_fbo
= _mesa_is_user_fbo(ctx
->DrawBuffer
);
112 bool multisampled_fbo
= ctx
->DrawBuffer
->Visual
.samples
> 1;
114 dw1
= GEN6_SF_STATISTICS_ENABLE
;
116 if (brw
->sf
.viewport_transform_enable
)
117 dw1
|= GEN6_SF_VIEWPORT_TRANSFORM_ENABLE
;
120 dw1
|= (brw_depthbuffer_format(brw
) << GEN7_SF_DEPTH_BUFFER_SURFACE_FORMAT_SHIFT
);
123 if ((ctx
->Polygon
.FrontFace
== GL_CCW
) ^ render_to_fbo
)
124 dw1
|= GEN6_SF_WINDING_CCW
;
126 if (ctx
->Polygon
.OffsetFill
)
127 dw1
|= GEN6_SF_GLOBAL_DEPTH_OFFSET_SOLID
;
129 if (ctx
->Polygon
.OffsetLine
)
130 dw1
|= GEN6_SF_GLOBAL_DEPTH_OFFSET_WIREFRAME
;
132 if (ctx
->Polygon
.OffsetPoint
)
133 dw1
|= GEN6_SF_GLOBAL_DEPTH_OFFSET_POINT
;
135 switch (ctx
->Polygon
.FrontMode
) {
137 dw1
|= GEN6_SF_FRONT_SOLID
;
141 dw1
|= GEN6_SF_FRONT_WIREFRAME
;
145 dw1
|= GEN6_SF_FRONT_POINT
;
149 unreachable("not reached");
152 switch (ctx
->Polygon
.BackMode
) {
154 dw1
|= GEN6_SF_BACK_SOLID
;
158 dw1
|= GEN6_SF_BACK_WIREFRAME
;
162 dw1
|= GEN6_SF_BACK_POINT
;
166 unreachable("not reached");
171 if (ctx
->Polygon
.CullFlag
) {
172 switch (ctx
->Polygon
.CullFaceMode
) {
174 dw2
|= GEN6_SF_CULL_FRONT
;
177 dw2
|= GEN6_SF_CULL_BACK
;
179 case GL_FRONT_AND_BACK
:
180 dw2
|= GEN6_SF_CULL_BOTH
;
183 unreachable("not reached");
186 dw2
|= GEN6_SF_CULL_NONE
;
190 if (ctx
->Scissor
.EnableFlags
)
191 dw2
|= GEN6_SF_SCISSOR_ENABLE
;
195 uint32_t line_width_u3_7
=
196 U_FIXED(CLAMP(ctx
->Line
.Width
, 0.0, ctx
->Const
.MaxLineWidth
), 7);
197 /* TODO: line width of 0 is not allowed when MSAA enabled */
198 if (line_width_u3_7
== 0)
200 dw2
|= line_width_u3_7
<< GEN6_SF_LINE_WIDTH_SHIFT
;
202 if (ctx
->Line
.SmoothFlag
) {
203 dw2
|= GEN6_SF_LINE_AA_ENABLE
;
204 dw2
|= GEN6_SF_LINE_END_CAP_WIDTH_1_0
;
206 if (ctx
->Line
.StippleFlag
&& brw
->is_haswell
) {
207 dw2
|= HSW_SF_LINE_STIPPLE_ENABLE
;
209 /* _NEW_MULTISAMPLE */
210 if (multisampled_fbo
&& ctx
->Multisample
.Enabled
)
211 dw2
|= GEN6_SF_MSRAST_ON_PATTERN
;
213 /* FINISHME: Last Pixel Enable? Vertex Sub Pixel Precision Select?
216 dw3
= GEN6_SF_LINE_AA_MODE_TRUE
;
218 /* _NEW_PROGRAM | _NEW_POINT */
219 if (!(ctx
->VertexProgram
.PointSizeEnabled
|| ctx
->Point
._Attenuated
))
220 dw3
|= GEN6_SF_USE_STATE_POINT_WIDTH
;
222 /* Clamp to ARB_point_parameters user limits */
223 point_size
= CLAMP(ctx
->Point
.Size
, ctx
->Point
.MinSize
, ctx
->Point
.MaxSize
);
225 /* Clamp to the hardware limits and convert to fixed point */
226 dw3
|= U_FIXED(CLAMP(point_size
, 0.125, 255.875), 3);
229 if (ctx
->Light
.ProvokingVertex
!= GL_FIRST_VERTEX_CONVENTION
) {
231 (2 << GEN6_SF_TRI_PROVOKE_SHIFT
) |
232 (2 << GEN6_SF_TRIFAN_PROVOKE_SHIFT
) |
233 (1 << GEN6_SF_LINE_PROVOKE_SHIFT
);
235 dw3
|= (1 << GEN6_SF_TRIFAN_PROVOKE_SHIFT
);
239 OUT_BATCH(_3DSTATE_SF
<< 16 | (7 - 2));
243 OUT_BATCH_F(ctx
->Polygon
.OffsetUnits
* 2); /* constant. copied from gen4 */
244 OUT_BATCH_F(ctx
->Polygon
.OffsetFactor
); /* scale */
245 OUT_BATCH_F(0.0); /* XXX: global depth offset clamp */
249 const struct brw_tracked_state gen7_sf_state
= {
251 .mesa
= _NEW_BUFFERS
|
259 .brw
= BRW_NEW_CONTEXT
,
261 .emit
= upload_sf_state
,