2 * Mesa 3-D graphics library
4 * Copyright (C) 2013 LunarG, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 * Chia-I Wu <olv@lunarg.com>
28 #include "util/u_prim.h"
29 #include "intel_winsys.h"
31 #include "ilo_context.h"
33 #include "ilo_state.h"
34 #include "ilo_3d_pipeline_gen6.h"
35 #include "ilo_3d_pipeline_gen7.h"
36 #include "ilo_3d_pipeline.h"
39 struct sample_position
{
43 /* \see gen6_get_sample_position() */
44 static const struct sample_position sample_position_1x
[1] = {
48 static const struct sample_position sample_position_4x
[4] = {
49 { 6, 2 }, /* distance from the center is sqrt(40) */
50 { 14, 6 }, /* distance from the center is sqrt(40) */
51 { 2, 10 }, /* distance from the center is sqrt(40) */
52 { 10, 14 }, /* distance from the center is sqrt(40) */
55 static const struct sample_position sample_position_8x
[8] = {
56 { 7, 9 }, /* distance from the center is sqrt(2) */
57 { 9, 13 }, /* distance from the center is sqrt(26) */
58 { 11, 3 }, /* distance from the center is sqrt(34) */
59 { 13, 11 }, /* distance from the center is sqrt(34) */
60 { 1, 7 }, /* distance from the center is sqrt(50) */
61 { 5, 1 }, /* distance from the center is sqrt(58) */
62 { 15, 5 }, /* distance from the center is sqrt(58) */
63 { 3, 15 }, /* distance from the center is sqrt(74) */
66 struct ilo_3d_pipeline
*
67 ilo_3d_pipeline_create(struct ilo_cp
*cp
, const struct ilo_dev_info
*dev
)
69 struct ilo_3d_pipeline
*p
;
72 p
= CALLOC_STRUCT(ilo_3d_pipeline
);
79 switch (p
->dev
->gen
) {
81 ilo_3d_pipeline_init_gen6(p
);
85 ilo_3d_pipeline_init_gen7(p
);
88 assert(!"unsupported GEN");
94 p
->invalidate_flags
= ILO_3D_PIPELINE_INVALIDATE_ALL
;
96 p
->workaround_bo
= intel_winsys_alloc_buffer(p
->cp
->winsys
,
97 "PIPE_CONTROL workaround", 4096, 0);
98 if (!p
->workaround_bo
) {
99 ilo_warn("failed to allocate PIPE_CONTROL workaround bo\n");
104 p
->packed_sample_position_1x
=
105 sample_position_1x
[0].x
<< 4 |
106 sample_position_1x
[0].y
;
108 /* pack into dwords */
109 for (i
= 0; i
< 4; i
++) {
110 p
->packed_sample_position_4x
|=
111 sample_position_4x
[i
].x
<< (8 * i
+ 4) |
112 sample_position_4x
[i
].y
<< (8 * i
);
114 p
->packed_sample_position_8x
[0] |=
115 sample_position_8x
[i
].x
<< (8 * i
+ 4) |
116 sample_position_8x
[i
].y
<< (8 * i
);
118 p
->packed_sample_position_8x
[1] |=
119 sample_position_8x
[4 + i
].x
<< (8 * i
+ 4) |
120 sample_position_8x
[4 + i
].y
<< (8 * i
);
127 ilo_3d_pipeline_destroy(struct ilo_3d_pipeline
*p
)
129 if (p
->workaround_bo
)
130 intel_bo_unreference(p
->workaround_bo
);
136 handle_invalid_batch_bo(struct ilo_3d_pipeline
*p
, bool unset
)
138 if (p
->invalidate_flags
& ILO_3D_PIPELINE_INVALIDATE_BATCH_BO
) {
139 if (p
->dev
->gen
== ILO_GEN(6))
140 p
->state
.has_gen6_wa_pipe_control
= false;
143 p
->invalidate_flags
&= ~ILO_3D_PIPELINE_INVALIDATE_BATCH_BO
;
148 * Emit context states and 3DPRIMITIVE.
151 ilo_3d_pipeline_emit_draw(struct ilo_3d_pipeline
*p
,
152 const struct ilo_context
*ilo
,
153 int *prim_generated
, int *prim_emitted
)
157 if (ilo
->dirty
& ILO_DIRTY_SO
&&
158 ilo
->so
.enabled
&& !ilo
->so
.append_bitmask
) {
160 * We keep track of the SVBI in the driver, so that we can restore it
161 * when the HW context is invalidated (by another process). The value
162 * needs to be reset when stream output is enabled and the targets are
165 p
->state
.so_num_vertices
= 0;
167 /* on GEN7+, we need SOL_RESET to reset the SO write offsets */
168 if (p
->dev
->gen
>= ILO_GEN(7))
169 ilo_cp_set_one_off_flags(p
->cp
, INTEL_EXEC_GEN7_SOL_RESET
);
174 struct ilo_cp_jmp_buf jmp
;
177 /* we will rewind if aperture check below fails */
178 ilo_cp_setjmp(p
->cp
, &jmp
);
180 handle_invalid_batch_bo(p
, false);
183 ilo_cp_assert_no_implicit_flush(p
->cp
, true);
184 p
->emit_draw(p
, ilo
);
185 ilo_cp_assert_no_implicit_flush(p
->cp
, false);
187 err
= intel_winsys_check_aperture_space(ilo
->winsys
, &p
->cp
->bo
, 1);
194 ilo_cp_longjmp(p
->cp
, &jmp
);
196 if (ilo_cp_empty(p
->cp
)) {
201 /* flush and try again */
202 ilo_cp_flush(p
->cp
, "out of aperture");
207 const int num_verts
=
208 u_vertices_per_prim(u_reduced_prim(ilo
->draw
->mode
));
210 (p
->state
.so_max_vertices
- p
->state
.so_num_vertices
) / num_verts
;
211 const int generated
=
212 u_reduced_prims_for_vertices(ilo
->draw
->mode
, ilo
->draw
->count
);
213 const int emitted
= MIN2(generated
, max_emit
);
215 p
->state
.so_num_vertices
+= emitted
* num_verts
;
218 *prim_generated
= generated
;
221 *prim_emitted
= emitted
;
224 p
->invalidate_flags
= 0x0;
230 * Emit PIPE_CONTROL to flush all caches.
233 ilo_3d_pipeline_emit_flush(struct ilo_3d_pipeline
*p
)
235 handle_invalid_batch_bo(p
, true);
240 * Emit PIPE_CONTROL with PIPE_CONTROL_WRITE_TIMESTAMP post-sync op.
243 ilo_3d_pipeline_emit_write_timestamp(struct ilo_3d_pipeline
*p
,
244 struct intel_bo
*bo
, int index
)
246 handle_invalid_batch_bo(p
, true);
247 p
->emit_write_timestamp(p
, bo
, index
);
251 * Emit PIPE_CONTROL with PIPE_CONTROL_WRITE_DEPTH_COUNT post-sync op.
254 ilo_3d_pipeline_emit_write_depth_count(struct ilo_3d_pipeline
*p
,
255 struct intel_bo
*bo
, int index
)
257 handle_invalid_batch_bo(p
, true);
258 p
->emit_write_depth_count(p
, bo
, index
);
262 ilo_3d_pipeline_get_sample_position(struct ilo_3d_pipeline
*p
,
263 unsigned sample_count
,
264 unsigned sample_index
,
267 const struct sample_position
*pos
;
269 switch (sample_count
) {
271 assert(sample_index
< Elements(sample_position_1x
));
272 pos
= sample_position_1x
;
275 assert(sample_index
< Elements(sample_position_4x
));
276 pos
= sample_position_4x
;
279 assert(sample_index
< Elements(sample_position_8x
));
280 pos
= sample_position_8x
;
283 assert(!"unknown sample count");
290 *x
= (float) pos
[sample_index
].x
/ 16.0f
;
291 *y
= (float) pos
[sample_index
].y
/ 16.0f
;