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Diffstat (limited to 'media/libvpx/libvpx/vp8/common/x86/mfqe_sse2.asm')
| -rw-r--r-- | media/libvpx/libvpx/vp8/common/x86/mfqe_sse2.asm | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp8/common/x86/mfqe_sse2.asm b/media/libvpx/libvpx/vp8/common/x86/mfqe_sse2.asm new file mode 100644 index 0000000000..3ec2a99ec2 --- /dev/null +++ b/media/libvpx/libvpx/vp8/common/x86/mfqe_sse2.asm @@ -0,0 +1,289 @@ +; +; Copyright (c) 2012 The WebM project authors. All Rights Reserved. +; +; Use of this source code is governed by a BSD-style license +; that can be found in the LICENSE file in the root of the source +; tree. An additional intellectual property rights grant can be found +; in the file PATENTS. All contributing project authors may +; be found in the AUTHORS file in the root of the source tree. +; + + +%include "vpx_ports/x86_abi_support.asm" + +SECTION .text + +;void vp8_filter_by_weight16x16_sse2 +;( +; unsigned char *src, +; int src_stride, +; unsigned char *dst, +; int dst_stride, +; int src_weight +;) +globalsym(vp8_filter_by_weight16x16_sse2) +sym(vp8_filter_by_weight16x16_sse2): + push rbp + mov rbp, rsp + SHADOW_ARGS_TO_STACK 5 + SAVE_XMM 6 + GET_GOT rbx + push rsi + push rdi + ; end prolog + + movd xmm0, arg(4) ; src_weight + pshuflw xmm0, xmm0, 0x0 ; replicate to all low words + punpcklqdq xmm0, xmm0 ; replicate to all hi words + + movdqa xmm1, [GLOBAL(tMFQE)] + psubw xmm1, xmm0 ; dst_weight + + mov rax, arg(0) ; src + mov rsi, arg(1) ; src_stride + mov rdx, arg(2) ; dst + mov rdi, arg(3) ; dst_stride + + mov rcx, 16 ; loop count + pxor xmm6, xmm6 + +.combine: + movdqa xmm2, [rax] + movdqa xmm4, [rdx] + add rax, rsi + + ; src * src_weight + movdqa xmm3, xmm2 + punpcklbw xmm2, xmm6 + punpckhbw xmm3, xmm6 + pmullw xmm2, xmm0 + pmullw xmm3, xmm0 + + ; dst * dst_weight + movdqa xmm5, xmm4 + punpcklbw xmm4, xmm6 + punpckhbw xmm5, xmm6 + pmullw xmm4, xmm1 + pmullw xmm5, xmm1 + + ; sum, round and shift + paddw xmm2, xmm4 + paddw xmm3, xmm5 + paddw xmm2, [GLOBAL(tMFQE_round)] + paddw xmm3, [GLOBAL(tMFQE_round)] + psrlw xmm2, 4 + psrlw xmm3, 4 + + packuswb xmm2, xmm3 + movdqa [rdx], xmm2 + add rdx, rdi + + dec rcx + jnz .combine + + ; begin epilog + pop rdi + pop rsi + RESTORE_GOT + RESTORE_XMM + UNSHADOW_ARGS + pop rbp + + ret + +;void vp8_filter_by_weight8x8_sse2 +;( +; unsigned char *src, +; int src_stride, +; unsigned char *dst, +; int dst_stride, +; int src_weight +;) +globalsym(vp8_filter_by_weight8x8_sse2) +sym(vp8_filter_by_weight8x8_sse2): + push rbp + mov rbp, rsp + SHADOW_ARGS_TO_STACK 5 + GET_GOT rbx + push rsi + push rdi + ; end prolog + + movd xmm0, arg(4) ; src_weight + pshuflw xmm0, xmm0, 0x0 ; replicate to all low words + punpcklqdq xmm0, xmm0 ; replicate to all hi words + + movdqa xmm1, [GLOBAL(tMFQE)] + psubw xmm1, xmm0 ; dst_weight + + mov rax, arg(0) ; src + mov rsi, arg(1) ; src_stride + mov rdx, arg(2) ; dst + mov rdi, arg(3) ; dst_stride + + mov rcx, 8 ; loop count + pxor xmm4, xmm4 + +.combine: + movq xmm2, [rax] + movq xmm3, [rdx] + add rax, rsi + + ; src * src_weight + punpcklbw xmm2, xmm4 + pmullw xmm2, xmm0 + + ; dst * dst_weight + punpcklbw xmm3, xmm4 + pmullw xmm3, xmm1 + + ; sum, round and shift + paddw xmm2, xmm3 + paddw xmm2, [GLOBAL(tMFQE_round)] + psrlw xmm2, 4 + + packuswb xmm2, xmm4 + movq [rdx], xmm2 + add rdx, rdi + + dec rcx + jnz .combine + + ; begin epilog + pop rdi + pop rsi + RESTORE_GOT + UNSHADOW_ARGS + pop rbp + + ret + +;void vp8_variance_and_sad_16x16_sse2 | arg +;( +; unsigned char *src1, 0 +; int stride1, 1 +; unsigned char *src2, 2 +; int stride2, 3 +; unsigned int *variance, 4 +; unsigned int *sad, 5 +;) +globalsym(vp8_variance_and_sad_16x16_sse2) +sym(vp8_variance_and_sad_16x16_sse2): + push rbp + mov rbp, rsp + SHADOW_ARGS_TO_STACK 6 + GET_GOT rbx + push rsi + push rdi + ; end prolog + + mov rax, arg(0) ; src1 + mov rcx, arg(1) ; stride1 + mov rdx, arg(2) ; src2 + mov rdi, arg(3) ; stride2 + + mov rsi, 16 ; block height + + ; Prep accumulator registers + pxor xmm3, xmm3 ; SAD + pxor xmm4, xmm4 ; sum of src2 + pxor xmm5, xmm5 ; sum of src2^2 + + ; Because we're working with the actual output frames + ; we can't depend on any kind of data alignment. +.accumulate: + movdqa xmm0, [rax] ; src1 + movdqa xmm1, [rdx] ; src2 + add rax, rcx ; src1 + stride1 + add rdx, rdi ; src2 + stride2 + + ; SAD(src1, src2) + psadbw xmm0, xmm1 + paddusw xmm3, xmm0 + + ; SUM(src2) + pxor xmm2, xmm2 + psadbw xmm2, xmm1 ; sum src2 by misusing SAD against 0 + paddusw xmm4, xmm2 + + ; pmaddubsw would be ideal if it took two unsigned values. instead, + ; it expects a signed and an unsigned value. so instead we zero extend + ; and operate on words. + pxor xmm2, xmm2 + movdqa xmm0, xmm1 + punpcklbw xmm0, xmm2 + punpckhbw xmm1, xmm2 + pmaddwd xmm0, xmm0 + pmaddwd xmm1, xmm1 + paddd xmm5, xmm0 + paddd xmm5, xmm1 + + sub rsi, 1 + jnz .accumulate + + ; phaddd only operates on adjacent double words. + ; Finalize SAD and store + movdqa xmm0, xmm3 + psrldq xmm0, 8 + paddusw xmm0, xmm3 + paddd xmm0, [GLOBAL(t128)] + psrld xmm0, 8 + + mov rax, arg(5) + movd [rax], xmm0 + + ; Accumulate sum of src2 + movdqa xmm0, xmm4 + psrldq xmm0, 8 + paddusw xmm0, xmm4 + ; Square src2. Ignore high value + pmuludq xmm0, xmm0 + psrld xmm0, 8 + + ; phaddw could be used to sum adjacent values but we want + ; all the values summed. promote to doubles, accumulate, + ; shift and sum + pxor xmm2, xmm2 + movdqa xmm1, xmm5 + punpckldq xmm1, xmm2 + punpckhdq xmm5, xmm2 + paddd xmm1, xmm5 + movdqa xmm2, xmm1 + psrldq xmm1, 8 + paddd xmm1, xmm2 + + psubd xmm1, xmm0 + + ; (variance + 128) >> 8 + paddd xmm1, [GLOBAL(t128)] + psrld xmm1, 8 + mov rax, arg(4) + + movd [rax], xmm1 + + + ; begin epilog + pop rdi + pop rsi + RESTORE_GOT + UNSHADOW_ARGS + pop rbp + ret + +SECTION_RODATA +align 16 +t128: +%ifndef __NASM_VER__ + ddq 128 +%elif CONFIG_BIG_ENDIAN + dq 0, 128 +%else + dq 128, 0 +%endif +align 16 +tMFQE: ; 1 << MFQE_PRECISION + times 8 dw 0x10 +align 16 +tMFQE_round: ; 1 << (MFQE_PRECISION - 1) + times 8 dw 0x08 + |