2 * Copyright © 2013 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>
26 * Zhao Yakui <yakui.zhao@intel.com>
29 /* Sample the src surface in planar format */
33 /* Ivybridge uses GRFs in SEND instruction */
34 define(`src_msg_gen8', `g65')
35 define(`src_msg_ind_gen8',`65')
37 define(`uv_flag', `g6.0<0,1,0>UW')
39 /* prepare sampler read back gX register, which would be written back to output */
41 /* use simd16 sampler, param 0 is u, param 1 is v. */
42 /* 'payload' loading, assuming tex coord start from g4 */
43 cmp.e.f0.0 (1) null uv_flag 0x1UW {align1};
44 (f0.0) jmpi INTERLEAVED_UV;
46 cmp.e.f0.0 (1) null uv_flag 0x2UW {align1};
47 (f0.0) jmpi CONSTANT_UV;
50 mov (1) g0.8<1>UD 0x0000e000UD { align1 mask_disable };
51 mov (8) src_msg_gen8<1>UD g0<8,8,1>UD { align1 mask_disable };
53 /* emit sampler 'send' cmd */
56 send (16) src_msg_ind_gen8 /* msg reg index */
57 src_sample_g<1>UW /* readback */
59 sampler (3,2,F) /* sampler message description, (binding_table,sampler_index,datatype)
60 /* here(src->dst) we should use src_sampler and src_surface */
61 mlen 5 rlen 2 { align1 }; /* required message len 5, readback len 8 */
64 mov (1) g0.8<1>UD 0x0000e000UD { align1 mask_disable };
65 mov (8) src_msg_gen8<1>UD g0<8,8,1>UD { align1 mask_disable };
67 send (16) src_msg_ind_gen8 /* msg reg index */
68 src_sample_b<1>UW /* readback */
70 sampler (5,4,F) /* sampler message description, (binding_table,sampler_index,datatype)
71 /* here(src->dst) we should use src_sampler and src_surface */
72 mlen 5 rlen 2 { align1 }; /* required message len 5, readback len 8 */
77 mov (16) src_sample_g<1>f 0.5f { compr align1 mask_disable };
78 mov (16) src_sample_b<1>f 0.5f { compr align1 mask_disable };
83 mov (1) g0.8<1>UD 0x0000c000UD { align1 mask_disable };
84 mov (8) src_msg_gen8<1>UD g0<8,8,1>UD { align1 mask_disable };
86 /* sample UV (CrCb) */
87 send (16) src_msg_ind_gen8 /* msg reg index */
88 src_sample_g<1>UW /* readback */
90 sampler (3,2,F) /* sampler message description, (binding_table,sampler_index,datatype)
91 /* here(src->dst) we should use src_sampler and src_surface */
92 mlen 5 rlen 4 { align1 }; /* required message len 5, readback len 8 */
96 mov (1) g0.8<1>UD 0x0000e000UD { align1 mask_disable };
97 mov (8) src_msg_gen8<1>UD g0<8,8,1>UD { align1 mask_disable };
100 send (16) src_msg_ind_gen8 /* msg reg index */
101 src_sample_r<1>UW /* readback */
103 sampler (1,0,F) /* sampler message description, (binding_table,sampler_index,datatype)
104 /* here(src->dst) we should use src_sampler and src_surface */
105 mlen 5 rlen 2 { align1 }; /* required message len 5, readback len 8 */