diff options
Diffstat (limited to 'libs/libaom/src/aom_dsp/x86/subtract_sse2.asm')
| -rw-r--r-- | libs/libaom/src/aom_dsp/x86/subtract_sse2.asm | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/libs/libaom/src/aom_dsp/x86/subtract_sse2.asm b/libs/libaom/src/aom_dsp/x86/subtract_sse2.asm new file mode 100644 index 000000000..1a75a234f --- /dev/null +++ b/libs/libaom/src/aom_dsp/x86/subtract_sse2.asm @@ -0,0 +1,146 @@ +; +; Copyright (c) 2016, Alliance for Open Media. All rights reserved +; +; This source code is subject to the terms of the BSD 2 Clause License and +; the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License +; was not distributed with this source code in the LICENSE file, you can +; obtain it at www.aomedia.org/license/software. If the Alliance for Open +; Media Patent License 1.0 was not distributed with this source code in the +; PATENTS file, you can obtain it at www.aomedia.org/license/patent. +; + +; + +%include "third_party/x86inc/x86inc.asm" + +SECTION .text + +; void aom_subtract_block(int rows, int cols, +; int16_t *diff, ptrdiff_t diff_stride, +; const uint8_t *src, ptrdiff_t src_stride, +; const uint8_t *pred, ptrdiff_t pred_stride) + +INIT_XMM sse2 +cglobal subtract_block, 7, 7, 8, \ + rows, cols, diff, diff_stride, src, src_stride, \ + pred, pred_stride +%define pred_str colsq + pxor m7, m7 ; dedicated zero register + cmp colsd, 4 + je .case_4 + cmp colsd, 8 + je .case_8 + cmp colsd, 16 + je .case_16 + cmp colsd, 32 + je .case_32 + cmp colsd, 64 + je .case_64 + +%macro loop16 6 + mova m0, [srcq+%1] + mova m4, [srcq+%2] + mova m1, [predq+%3] + mova m5, [predq+%4] + punpckhbw m2, m0, m7 + punpckhbw m3, m1, m7 + punpcklbw m0, m7 + punpcklbw m1, m7 + psubw m2, m3 + psubw m0, m1 + punpckhbw m1, m4, m7 + punpckhbw m3, m5, m7 + punpcklbw m4, m7 + punpcklbw m5, m7 + psubw m1, m3 + psubw m4, m5 + mova [diffq+mmsize*0+%5], m0 + mova [diffq+mmsize*1+%5], m2 + mova [diffq+mmsize*0+%6], m4 + mova [diffq+mmsize*1+%6], m1 +%endmacro + + mov pred_str, pred_stridemp +.loop_128: + loop16 0*mmsize, 1*mmsize, 0*mmsize, 1*mmsize, 0*mmsize, 2*mmsize + loop16 2*mmsize, 3*mmsize, 2*mmsize, 3*mmsize, 4*mmsize, 6*mmsize + loop16 4*mmsize, 5*mmsize, 4*mmsize, 5*mmsize, 8*mmsize, 10*mmsize + loop16 6*mmsize, 7*mmsize, 6*mmsize, 7*mmsize, 12*mmsize, 14*mmsize + lea diffq, [diffq+diff_strideq*2] + add predq, pred_str + add srcq, src_strideq + sub rowsd, 1 + jnz .loop_128 + RET + +.case_64: + mov pred_str, pred_stridemp +.loop_64: + loop16 0*mmsize, 1*mmsize, 0*mmsize, 1*mmsize, 0*mmsize, 2*mmsize + loop16 2*mmsize, 3*mmsize, 2*mmsize, 3*mmsize, 4*mmsize, 6*mmsize + lea diffq, [diffq+diff_strideq*2] + add predq, pred_str + add srcq, src_strideq + dec rowsd + jg .loop_64 + RET + +.case_32: + mov pred_str, pred_stridemp +.loop_32: + loop16 0, mmsize, 0, mmsize, 0, 2*mmsize + lea diffq, [diffq+diff_strideq*2] + add predq, pred_str + add srcq, src_strideq + dec rowsd + jg .loop_32 + RET + +.case_16: + mov pred_str, pred_stridemp +.loop_16: + loop16 0, src_strideq, 0, pred_str, 0, diff_strideq*2 + lea diffq, [diffq+diff_strideq*4] + lea predq, [predq+pred_str*2] + lea srcq, [srcq+src_strideq*2] + sub rowsd, 2 + jg .loop_16 + RET + +%macro loop_h 0 + movh m0, [srcq] + movh m2, [srcq+src_strideq] + movh m1, [predq] + movh m3, [predq+pred_str] + punpcklbw m0, m7 + punpcklbw m1, m7 + punpcklbw m2, m7 + punpcklbw m3, m7 + psubw m0, m1 + psubw m2, m3 + mova [diffq], m0 + mova [diffq+diff_strideq*2], m2 +%endmacro + +.case_8: + mov pred_str, pred_stridemp +.loop_8: + loop_h + lea diffq, [diffq+diff_strideq*4] + lea srcq, [srcq+src_strideq*2] + lea predq, [predq+pred_str*2] + sub rowsd, 2 + jg .loop_8 + RET + +INIT_MMX +.case_4: + mov pred_str, pred_stridemp +.loop_4: + loop_h + lea diffq, [diffq+diff_strideq*4] + lea srcq, [srcq+src_strideq*2] + lea predq, [predq+pred_str*2] + sub rowsd, 2 + jg .loop_4 + RET |