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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5361 | serge | 1 | /* |
| 2 | * Copyright © 2013 Intel Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice (including the next |
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| 12 | * paragraph) shall be included in all copies or substantial portions of the |
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| 13 | * Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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| 21 | * IN THE SOFTWARE. |
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| 22 | * |
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| 23 | * Authors: |
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| 24 | * Wang Zhenyu |
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| 25 | * Keith Packard |
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| 26 | * Zhao Yakui |
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| 27 | */ |
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| 28 | |||
| 29 | /* Sample the src surface in planar format */ |
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| 30 | |||
| 31 | include(`exa_wm.g4i') |
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| 32 | |||
| 33 | /* Ivybridge uses GRFs in SEND instruction */ |
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| 34 | define(`src_msg_gen8', `g65') |
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| 35 | define(`src_msg_ind_gen8',`65') |
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| 36 | /* UV flag */ |
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| 37 | define(`uv_flag', `g6.0<0,1,0>UW') |
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| 38 | |||
| 39 | /* prepare sampler read back gX register, which would be written back to output */ |
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| 40 | |||
| 41 | /* use simd16 sampler, param 0 is u, param 1 is v. */ |
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| 42 | /* 'payload' loading, assuming tex coord start from g4 */ |
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| 43 | cmp.e.f0.0 (1) null uv_flag 0x1UW {align1}; |
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| 44 | (f0.0) jmpi INTERLEAVED_UV; |
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| 45 | |||
| 46 | cmp.e.f0.0 (1) null uv_flag 0x2UW {align1}; |
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| 47 | (f0.0) jmpi CONSTANT_UV; |
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| 48 | |||
| 49 | /* load r */ |
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| 50 | mov (1) g0.8<1>UD 0x0000e000UD { align1 mask_disable }; |
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| 51 | mov (8) src_msg_gen8<1>UD g0<8,8,1>UD { align1 mask_disable }; |
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| 52 | |||
| 53 | /* emit sampler 'send' cmd */ |
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| 54 | |||
| 55 | /* sample U (Cr) */ |
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| 56 | send (16) src_msg_ind_gen8 /* msg reg index */ |
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| 57 | src_sample_g<1>UW /* readback */ |
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| 58 | null |
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| 59 | sampler (3,2,F) /* sampler message description, (binding_table,sampler_index,datatype) |
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| 60 | /* here(src->dst) we should use src_sampler and src_surface */ |
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| 61 | mlen 5 rlen 2 { align1 }; /* required message len 5, readback len 8 */ |
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| 62 | |||
| 63 | /* sample V (Cb) */ |
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| 64 | mov (1) g0.8<1>UD 0x0000e000UD { align1 mask_disable }; |
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| 65 | mov (8) src_msg_gen8<1>UD g0<8,8,1>UD { align1 mask_disable }; |
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| 66 | |||
| 67 | send (16) src_msg_ind_gen8 /* msg reg index */ |
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| 68 | src_sample_b<1>UW /* readback */ |
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| 69 | null |
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| 70 | sampler (5,4,F) /* sampler message description, (binding_table,sampler_index,datatype) |
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| 71 | /* here(src->dst) we should use src_sampler and src_surface */ |
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| 72 | mlen 5 rlen 2 { align1 }; /* required message len 5, readback len 8 */ |
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| 73 | |||
| 74 | jmpi SAMPLE_Y; |
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| 75 | |||
| 76 | CONSTANT_UV: |
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| 77 | mov (16) src_sample_g<1>f 0.5f { compr align1 mask_disable }; |
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| 78 | mov (16) src_sample_b<1>f 0.5f { compr align1 mask_disable }; |
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| 79 | |||
| 80 | jmpi SAMPLE_Y; |
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| 81 | |||
| 82 | INTERLEAVED_UV: |
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| 83 | mov (1) g0.8<1>UD 0x0000c000UD { align1 mask_disable }; |
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| 84 | mov (8) src_msg_gen8<1>UD g0<8,8,1>UD { align1 mask_disable }; |
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| 85 | |||
| 86 | /* sample UV (CrCb) */ |
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| 87 | send (16) src_msg_ind_gen8 /* msg reg index */ |
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| 88 | src_sample_g<1>UW /* readback */ |
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| 89 | null |
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| 90 | sampler (3,2,F) /* sampler message description, (binding_table,sampler_index,datatype) |
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| 91 | /* here(src->dst) we should use src_sampler and src_surface */ |
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| 92 | mlen 5 rlen 4 { align1 }; /* required message len 5, readback len 8 */ |
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| 93 | |||
| 94 | |||
| 95 | SAMPLE_Y: |
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| 96 | mov (1) g0.8<1>UD 0x0000e000UD { align1 mask_disable }; |
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| 97 | mov (8) src_msg_gen8<1>UD g0<8,8,1>UD { align1 mask_disable }; |
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| 98 | |||
| 99 | /* sample Y */ |
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| 100 | send (16) src_msg_ind_gen8 /* msg reg index */ |
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| 101 | src_sample_r<1>UW /* readback */ |
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| 102 | null |
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| 103 | sampler (1,0,F) /* sampler message description, (binding_table,sampler_index,datatype) |
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| 104 | /* here(src->dst) we should use src_sampler and src_surface */ |
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| 105 | mlen 5 rlen 2 { align1 }; /* required message len 5, readback len 8 */ |
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| 106 |