1 /*
2 * Copyright © 2012 Intel Corporation
3 *
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:
10 *
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
13 * Software.
14 *
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
21 * IN THE SOFTWARE.
22 */
23
24 #include "intel_batchbuffer.h"
25
26 #include "brw_context.h"
27 #include "brw_defines.h"
28 #include "brw_multisample_state.h"
29
30 /**
31 * 3DSTATE_SAMPLE_PATTERN
32 */
33 void
gen8_emit_3dstate_sample_pattern(struct brw_context * brw)34 gen8_emit_3dstate_sample_pattern(struct brw_context *brw)
35 {
36 BEGIN_BATCH(9);
37 OUT_BATCH(_3DSTATE_SAMPLE_PATTERN << 16 | (9 - 2));
38
39 /* 16x MSAA */
40 OUT_BATCH(brw_multisample_positions_16x[0]); /* positions 3, 2, 1, 0 */
41 OUT_BATCH(brw_multisample_positions_16x[1]); /* positions 7, 6, 5, 4 */
42 OUT_BATCH(brw_multisample_positions_16x[2]); /* positions 11, 10, 9, 8 */
43 OUT_BATCH(brw_multisample_positions_16x[3]); /* positions 15, 14, 13, 12 */
44
45 /* 8x MSAA */
46 OUT_BATCH(brw_multisample_positions_8x[1]); /* sample positions 7654 */
47 OUT_BATCH(brw_multisample_positions_8x[0]); /* sample positions 3210 */
48
49 /* 4x MSAA */
50 OUT_BATCH(brw_multisample_positions_4x);
51
52 /* 1x and 2x MSAA */
53 OUT_BATCH(brw_multisample_positions_1x_2x);
54 ADVANCE_BATCH();
55 }
56