2
* Copyright © 2006 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
* Wang Zhenyu <zhenyu.z.wang@intel.com>
25
* Keith Packard <keithp@keithp.com>
28
/* Sample the mask surface */
32
/* prepare sampler read back gX register, which would be written back to output */
34
/* use simd16 sampler, param 0 is u, param 1 is v. */
35
/* 'payload' loading, assuming tex coord start from g4 */
38
mov (1) g0.8<1>UD 0x00000000UD { align1 mask_disable };
39
mov (8) g71<1>UD g0<8,8,1>UD { align1 }; /* copy to msg start reg*/
41
/* g71 will be copied with g0, as it contains send desc */
42
/* emit sampler 'send' cmd */
43
send (16) 71 /* msg reg index */
44
mask_sample_base<1>UW /* readback */
46
sampler (2,1,F) /* sampler message description, (binding_table,sampler_index,datatype)
47
/* here(src->dst) we should use src_sampler and src_surface */
48
mlen 5 rlen 8 { align1 }; /* required message len 5, readback len 8 */