diff options
Diffstat (limited to 'libavcodec/aarch64/h264dsp_neon.S')
-rw-r--r-- | libavcodec/aarch64/h264dsp_neon.S | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/libavcodec/aarch64/h264dsp_neon.S b/libavcodec/aarch64/h264dsp_neon.S new file mode 100644 index 0000000000..777ddefa2a --- /dev/null +++ b/libavcodec/aarch64/h264dsp_neon.S @@ -0,0 +1,259 @@ +/* + * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> + * Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net> + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/aarch64/asm.S" +#include "neon.S" + +.macro h264_loop_filter_start + cmp w2, #0 + ldr w6, [x4] + ccmp w3, #0, #0, ne + mov v24.S[0], w6 + and w6, w6, w6, lsl #16 + b.eq 1f + ands w6, w6, w6, lsl #8 + b.ge 2f +1: + ret +2: +.endm + +.macro h264_loop_filter_luma + dup v22.16B, w2 // alpha + uxtl v24.8H, v24.8B + uabd v21.16B, v16.16B, v0.16B // abs(p0 - q0) + uxtl v24.4S, v24.4H + uabd v28.16B, v18.16B, v16.16B // abs(p1 - p0) + sli v24.8H, v24.8H, #8 + uabd v30.16B, v2.16B, v0.16B // abs(q1 - q0) + sli v24.4S, v24.4S, #16 + cmhi v21.16B, v22.16B, v21.16B // < alpha + dup v22.16B, w3 // beta + cmlt v23.16B, v24.16B, #0 + cmhi v28.16B, v22.16B, v28.16B // < beta + cmhi v30.16B, v22.16B, v30.16B // < beta + bic v21.16B, v21.16B, v23.16B + uabd v17.16B, v20.16B, v16.16B // abs(p2 - p0) + and v21.16B, v21.16B, v28.16B + uabd v19.16B, v4.16B, v0.16B // abs(q2 - q0) + cmhi v17.16B, v22.16B, v17.16B // < beta + and v21.16B, v21.16B, v30.16B + cmhi v19.16B, v22.16B, v19.16B // < beta + and v17.16B, v17.16B, v21.16B + and v19.16B, v19.16B, v21.16B + and v24.16B, v24.16B, v21.16B + urhadd v28.16B, v16.16B, v0.16B + sub v21.16B, v24.16B, v17.16B + uqadd v23.16B, v18.16B, v24.16B + uhadd v20.16B, v20.16B, v28.16B + sub v21.16B, v21.16B, v19.16B + uhadd v28.16B, v4.16B, v28.16B + umin v23.16B, v23.16B, v20.16B + uqsub v22.16B, v18.16B, v24.16B + uqadd v4.16B, v2.16B, v24.16B + umax v23.16B, v23.16B, v22.16B + uqsub v22.16B, v2.16B, v24.16B + umin v28.16B, v4.16B, v28.16B + uxtl v4.8H, v0.8B + umax v28.16B, v28.16B, v22.16B + uxtl2 v20.8H, v0.16B + usubw v4.8H, v4.8H, v16.8B + usubw2 v20.8H, v20.8H, v16.16B + shl v4.8H, v4.8H, #2 + shl v20.8H, v20.8H, #2 + uaddw v4.8H, v4.8H, v18.8B + uaddw2 v20.8H, v20.8H, v18.16B + usubw v4.8H, v4.8H, v2.8B + usubw2 v20.8H, v20.8H, v2.16B + rshrn v4.8B, v4.8H, #3 + rshrn2 v4.16B, v20.8H, #3 + bsl v17.16B, v23.16B, v18.16B + bsl v19.16B, v28.16B, v2.16B + neg v23.16B, v21.16B + uxtl v28.8H, v16.8B + smin v4.16B, v4.16B, v21.16B + uxtl2 v21.8H, v16.16B + smax v4.16B, v4.16B, v23.16B + uxtl v22.8H, v0.8B + uxtl2 v24.8H, v0.16B + saddw v28.8H, v28.8H, v4.8B + saddw2 v21.8H, v21.8H, v4.16B + ssubw v22.8H, v22.8H, v4.8B + ssubw2 v24.8H, v24.8H, v4.16B + sqxtun v16.8B, v28.8H + sqxtun2 v16.16B, v21.8H + sqxtun v0.8B, v22.8H + sqxtun2 v0.16B, v24.8H +.endm + +function ff_h264_v_loop_filter_luma_neon, export=1 + h264_loop_filter_start + sxtw x1, w1 + + ld1 {v0.16B}, [x0], x1 + ld1 {v2.16B}, [x0], x1 + ld1 {v4.16B}, [x0], x1 + sub x0, x0, x1, lsl #2 + sub x0, x0, x1, lsl #1 + ld1 {v20.16B}, [x0], x1 + ld1 {v18.16B}, [x0], x1 + ld1 {v16.16B}, [x0], x1 + + h264_loop_filter_luma + + sub x0, x0, x1, lsl #1 + st1 {v17.16B}, [x0], x1 + st1 {v16.16B}, [x0], x1 + st1 {v0.16B}, [x0], x1 + st1 {v19.16B}, [x0] + + ret +endfunc + +function ff_h264_h_loop_filter_luma_neon, export=1 + h264_loop_filter_start + + sub x0, x0, #4 + ld1 {v6.8B}, [x0], x1 + ld1 {v20.8B}, [x0], x1 + ld1 {v18.8B}, [x0], x1 + ld1 {v16.8B}, [x0], x1 + ld1 {v0.8B}, [x0], x1 + ld1 {v2.8B}, [x0], x1 + ld1 {v4.8B}, [x0], x1 + ld1 {v26.8B}, [x0], x1 + ld1 {v6.D}[1], [x0], x1 + ld1 {v20.D}[1], [x0], x1 + ld1 {v18.D}[1], [x0], x1 + ld1 {v16.D}[1], [x0], x1 + ld1 {v0.D}[1], [x0], x1 + ld1 {v2.D}[1], [x0], x1 + ld1 {v4.D}[1], [x0], x1 + ld1 {v26.D}[1], [x0], x1 + + transpose_8x16B v6, v20, v18, v16, v0, v2, v4, v26, v21, v23 + + h264_loop_filter_luma + + transpose_4x16B v17, v16, v0, v19, v21, v23, v25, v27 + + sub x0, x0, x1, lsl #4 + add x0, x0, #2 + st1 {v17.S}[0], [x0], x1 + st1 {v16.S}[0], [x0], x1 + st1 {v0.S}[0], [x0], x1 + st1 {v19.S}[0], [x0], x1 + st1 {v17.S}[1], [x0], x1 + st1 {v16.S}[1], [x0], x1 + st1 {v0.S}[1], [x0], x1 + st1 {v19.S}[1], [x0], x1 + st1 {v17.S}[2], [x0], x1 + st1 {v16.S}[2], [x0], x1 + st1 {v0.S}[2], [x0], x1 + st1 {v19.S}[2], [x0], x1 + st1 {v17.S}[3], [x0], x1 + st1 {v16.S}[3], [x0], x1 + st1 {v0.S}[3], [x0], x1 + st1 {v19.S}[3], [x0], x1 + + ret +endfunc + +.macro h264_loop_filter_chroma + dup v22.8B, w2 // alpha + uxtl v24.8H, v24.8B + uabd v26.8B, v16.8B, v0.8B // abs(p0 - q0) + uxtl v4.8H, v0.8B + uabd v28.8B, v18.8B, v16.8B // abs(p1 - p0) + usubw v4.8H, v4.8H, v16.8B + sli v24.8H, v24.8H, #8 + shl v4.8H, v4.8H, #2 + uabd v30.8B, v2.8B, v0.8B // abs(q1 - q0) + uaddw v4.8H, v4.8H, v18.8B + cmhi v26.8B, v22.8B, v26.8B // < alpha + usubw v4.8H, v4.8H, v2.8B + dup v22.8B, w3 // beta + rshrn v4.8B, v4.8H, #3 + cmhi v28.8B, v22.8B, v28.8B // < beta + cmhi v30.8B, v22.8B, v30.8B // < beta + smin v4.8B, v4.8B, v24.8B + neg v25.8B, v24.8B + and v26.8B, v26.8B, v28.8B + smax v4.8B, v4.8B, v25.8B + and v26.8B, v26.8B, v30.8B + uxtl v22.8H, v0.8B + and v4.8B, v4.8B, v26.8B + uxtl v28.8H, v16.8B + saddw v28.8H, v28.8H, v4.8B + ssubw v22.8H, v22.8H, v4.8B + sqxtun v16.8B, v28.8H + sqxtun v0.8B, v22.8H +.endm + +function ff_h264_v_loop_filter_chroma_neon, export=1 + h264_loop_filter_start + + sub x0, x0, x1, lsl #1 + ld1 {v18.8B}, [x0], x1 + ld1 {v16.8B}, [x0], x1 + ld1 {v0.8B}, [x0], x1 + ld1 {v2.8B}, [x0] + + h264_loop_filter_chroma + + sub x0, x0, x1, lsl #1 + st1 {v16.8B}, [x0], x1 + st1 {v0.8B}, [x0], x1 + + ret +endfunc + +function ff_h264_h_loop_filter_chroma_neon, export=1 + h264_loop_filter_start + + sub x0, x0, #2 + ld1 {v18.S}[0], [x0], x1 + ld1 {v16.S}[0], [x0], x1 + ld1 {v0.S}[0], [x0], x1 + ld1 {v2.S}[0], [x0], x1 + ld1 {v18.S}[1], [x0], x1 + ld1 {v16.S}[1], [x0], x1 + ld1 {v0.S}[1], [x0], x1 + ld1 {v2.S}[1], [x0], x1 + + transpose_4x8B v18, v16, v0, v2, v28, v29, v30, v31 + + h264_loop_filter_chroma + + transpose_4x8B v18, v16, v0, v2, v28, v29, v30, v31 + + sub x0, x0, x1, lsl #3 + st1 {v18.S}[0], [x0], x1 + st1 {v16.S}[0], [x0], x1 + st1 {v0.S}[0], [x0], x1 + st1 {v2.S}[0], [x0], x1 + st1 {v18.S}[1], [x0], x1 + st1 {v16.S}[1], [x0], x1 + st1 {v0.S}[1], [x0], x1 + st1 {v2.S}[1], [x0], x1 + + ret +endfunc |