2 * Copyright © 2012 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 "intel_batchbuffer.h"
26 #include "brw_context.h"
27 #include "brw_defines.h"
28 #include "brw_multisample_state.h"
34 gen8_emit_3dstate_multisample(struct brw_context
*brw
, unsigned num_samples
)
36 assert(num_samples
<= 16);
38 unsigned log2_samples
= ffs(MAX2(num_samples
, 1)) - 1;
41 OUT_BATCH(GEN8_3DSTATE_MULTISAMPLE
<< 16 | (2 - 2));
42 OUT_BATCH(MS_PIXEL_LOCATION_CENTER
| log2_samples
<< 1);
47 * 3DSTATE_SAMPLE_PATTERN
50 gen8_emit_3dstate_sample_pattern(struct brw_context
*brw
)
53 OUT_BATCH(_3DSTATE_SAMPLE_PATTERN
<< 16 | (9 - 2));
56 OUT_BATCH(brw_multisample_positions_16x
[0]); /* positions 3, 2, 1, 0 */
57 OUT_BATCH(brw_multisample_positions_16x
[1]); /* positions 7, 6, 5, 4 */
58 OUT_BATCH(brw_multisample_positions_16x
[2]); /* positions 11, 10, 9, 8 */
59 OUT_BATCH(brw_multisample_positions_16x
[3]); /* positions 15, 14, 13, 12 */
62 OUT_BATCH(brw_multisample_positions_8x
[1]); /* sample positions 7654 */
63 OUT_BATCH(brw_multisample_positions_8x
[0]); /* sample positions 3210 */
66 OUT_BATCH(brw_multisample_positions_4x
);
69 OUT_BATCH(brw_multisample_positions_1x_2x
);
75 upload_multisample_state(struct brw_context
*brw
)
77 gen8_emit_3dstate_multisample(brw
, brw
->num_samples
);
78 gen6_emit_3dstate_sample_mask(brw
, gen6_determine_sample_mask(brw
));
81 const struct brw_tracked_state gen8_multisample_state
= {
83 .mesa
= _NEW_MULTISAMPLE
,
84 .brw
= BRW_NEW_BLORP
|
88 .emit
= upload_multisample_state