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comparison: media/libvpx/vp9/encoder/x86/vp9_subtract_sse2.asm
media/libvpx/vp9/encoder/x86/vp9_subtract_sse2.asm
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| -1:000000000000 | 0:36f3cf2acff0 |
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| 1 ; | |
| 2 ; Copyright (c) 2010 The WebM project authors. All Rights Reserved. | |
| 3 ; | |
| 4 ; Use of this source code is governed by a BSD-style license | |
| 5 ; that can be found in the LICENSE file in the root of the source | |
| 6 ; tree. An additional intellectual property rights grant can be found | |
| 7 ; in the file PATENTS. All contributing project authors may | |
| 8 ; be found in the AUTHORS file in the root of the source tree. | |
| 9 ; | |
| 10 | |
| 11 %include "third_party/x86inc/x86inc.asm" | |
| 12 | |
| 13 SECTION .text | |
| 14 | |
| 15 ; void vp9_subtract_block(int rows, int cols, | |
| 16 ; int16_t *diff, ptrdiff_t diff_stride, | |
| 17 ; const uint8_t *src, ptrdiff_t src_stride, | |
| 18 ; const uint8_t *pred, ptrdiff_t pred_stride) | |
| 19 | |
| 20 INIT_XMM sse2 | |
| 21 cglobal subtract_block, 7, 7, 8, \ | |
| 22 rows, cols, diff, diff_stride, src, src_stride, \ | |
| 23 pred, pred_stride | |
| 24 %define pred_str colsq | |
| 25 pxor m7, m7 ; dedicated zero register | |
| 26 cmp colsd, 4 | |
| 27 je .case_4 | |
| 28 cmp colsd, 8 | |
| 29 je .case_8 | |
| 30 cmp colsd, 16 | |
| 31 je .case_16 | |
| 32 cmp colsd, 32 | |
| 33 je .case_32 | |
| 34 | |
| 35 %macro loop16 6 | |
| 36 mova m0, [srcq+%1] | |
| 37 mova m4, [srcq+%2] | |
| 38 mova m1, [predq+%3] | |
| 39 mova m5, [predq+%4] | |
| 40 punpckhbw m2, m0, m7 | |
| 41 punpckhbw m3, m1, m7 | |
| 42 punpcklbw m0, m7 | |
| 43 punpcklbw m1, m7 | |
| 44 psubw m2, m3 | |
| 45 psubw m0, m1 | |
| 46 punpckhbw m1, m4, m7 | |
| 47 punpckhbw m3, m5, m7 | |
| 48 punpcklbw m4, m7 | |
| 49 punpcklbw m5, m7 | |
| 50 psubw m1, m3 | |
| 51 psubw m4, m5 | |
| 52 mova [diffq+mmsize*0+%5], m0 | |
| 53 mova [diffq+mmsize*1+%5], m2 | |
| 54 mova [diffq+mmsize*0+%6], m4 | |
| 55 mova [diffq+mmsize*1+%6], m1 | |
| 56 %endmacro | |
| 57 | |
| 58 mov pred_str, pred_stridemp | |
| 59 .loop_64: | |
| 60 loop16 0*mmsize, 1*mmsize, 0*mmsize, 1*mmsize, 0*mmsize, 2*mmsize | |
| 61 loop16 2*mmsize, 3*mmsize, 2*mmsize, 3*mmsize, 4*mmsize, 6*mmsize | |
| 62 lea diffq, [diffq+diff_strideq*2] | |
| 63 add predq, pred_str | |
| 64 add srcq, src_strideq | |
| 65 dec rowsd | |
| 66 jg .loop_64 | |
| 67 RET | |
| 68 | |
| 69 .case_32: | |
| 70 mov pred_str, pred_stridemp | |
| 71 .loop_32: | |
| 72 loop16 0, mmsize, 0, mmsize, 0, 2*mmsize | |
| 73 lea diffq, [diffq+diff_strideq*2] | |
| 74 add predq, pred_str | |
| 75 add srcq, src_strideq | |
| 76 dec rowsd | |
| 77 jg .loop_32 | |
| 78 RET | |
| 79 | |
| 80 .case_16: | |
| 81 mov pred_str, pred_stridemp | |
| 82 .loop_16: | |
| 83 loop16 0, src_strideq, 0, pred_str, 0, diff_strideq*2 | |
| 84 lea diffq, [diffq+diff_strideq*4] | |
| 85 lea predq, [predq+pred_str*2] | |
| 86 lea srcq, [srcq+src_strideq*2] | |
| 87 sub rowsd, 2 | |
| 88 jg .loop_16 | |
| 89 RET | |
| 90 | |
| 91 %macro loop_h 0 | |
| 92 movh m0, [srcq] | |
| 93 movh m2, [srcq+src_strideq] | |
| 94 movh m1, [predq] | |
| 95 movh m3, [predq+pred_str] | |
| 96 punpcklbw m0, m7 | |
| 97 punpcklbw m1, m7 | |
| 98 punpcklbw m2, m7 | |
| 99 punpcklbw m3, m7 | |
| 100 psubw m0, m1 | |
| 101 psubw m2, m3 | |
| 102 mova [diffq], m0 | |
| 103 mova [diffq+diff_strideq*2], m2 | |
| 104 %endmacro | |
| 105 | |
| 106 .case_8: | |
| 107 mov pred_str, pred_stridemp | |
| 108 .loop_8: | |
| 109 loop_h | |
| 110 lea diffq, [diffq+diff_strideq*4] | |
| 111 lea srcq, [srcq+src_strideq*2] | |
| 112 lea predq, [predq+pred_str*2] | |
| 113 sub rowsd, 2 | |
| 114 jg .loop_8 | |
| 115 RET | |
| 116 | |
| 117 INIT_MMX | |
| 118 .case_4: | |
| 119 mov pred_str, pred_stridemp | |
| 120 .loop_4: | |
| 121 loop_h | |
| 122 lea diffq, [diffq+diff_strideq*4] | |
| 123 lea srcq, [srcq+src_strideq*2] | |
| 124 lea predq, [predq+pred_str*2] | |
| 125 sub rowsd, 2 | |
| 126 jg .loop_4 | |
| 127 RET |
