;***************************************************************************** ;* MMX optimized DSP utils ;***************************************************************************** ;* Copyright (c) 2000, 2001 Fabrice Bellard ;* Copyright (c) 2002-2004 Michael Niedermayer ;* ;* This file is part of FFmpeg. ;* ;* FFmpeg 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. ;* ;* FFmpeg 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 FFmpeg; if not, write to the Free Software ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ;***************************************************************************** %include "libavutil/x86/x86util.asm" SECTION_RODATA cextern pw_1 SECTION .text %macro DIFF_PIXELS_1 4 movh %1, %3 movh %2, %4 punpcklbw %2, %1 punpcklbw %1, %1 psubw %1, %2 %endmacro ; %1=uint8_t *pix1, %2=uint8_t *pix2, %3=static offset, %4=stride, %5=stride*3 ; %6=temporary storage location ; this macro requires $mmsize stack space (aligned) on %6 (except on SSE+x86-64) %macro DIFF_PIXELS_8 6 DIFF_PIXELS_1 m0, m7, [%1 +%3], [%2 +%3] DIFF_PIXELS_1 m1, m7, [%1+%4 +%3], [%2+%4 +%3] DIFF_PIXELS_1 m2, m7, [%1+%4*2+%3], [%2+%4*2+%3] add %1, %5 add %2, %5 DIFF_PIXELS_1 m3, m7, [%1 +%3], [%2 +%3] DIFF_PIXELS_1 m4, m7, [%1+%4 +%3], [%2+%4 +%3] DIFF_PIXELS_1 m5, m7, [%1+%4*2+%3], [%2+%4*2+%3] DIFF_PIXELS_1 m6, m7, [%1+%5 +%3], [%2+%5 +%3] %ifdef m8 DIFF_PIXELS_1 m7, m8, [%1+%4*4+%3], [%2+%4*4+%3] %else mova [%6], m0 DIFF_PIXELS_1 m7, m0, [%1+%4*4+%3], [%2+%4*4+%3] mova m0, [%6] %endif sub %1, %5 sub %2, %5 %endmacro %macro HADAMARD8 0 SUMSUB_BADC w, 0, 1, 2, 3 SUMSUB_BADC w, 4, 5, 6, 7 SUMSUB_BADC w, 0, 2, 1, 3 SUMSUB_BADC w, 4, 6, 5, 7 SUMSUB_BADC w, 0, 4, 1, 5 SUMSUB_BADC w, 2, 6, 3, 7 %endmacro %macro ABS1_SUM 3 ABS1 %1, %2 paddusw %3, %1 %endmacro %macro ABS2_SUM 6 ABS2 %1, %2, %3, %4 paddusw %5, %1 paddusw %6, %2 %endmacro %macro ABS_SUM_8x8_64 1 ABS2 m0, m1, m8, m9 ABS2_SUM m2, m3, m8, m9, m0, m1 ABS2_SUM m4, m5, m8, m9, m0, m1 ABS2_SUM m6, m7, m8, m9, m0, m1 paddusw m0, m1 %endmacro %macro ABS_SUM_8x8_32 1 mova [%1], m7 ABS1 m0, m7 ABS1 m1, m7 ABS1_SUM m2, m7, m0 ABS1_SUM m3, m7, m1 ABS1_SUM m4, m7, m0 ABS1_SUM m5, m7, m1 ABS1_SUM m6, m7, m0 mova m2, [%1] ABS1_SUM m2, m7, m1 paddusw m0, m1 %endmacro ; FIXME: HSUM saturates at 64k, while an 8x8 hadamard or dct block can get up to ; about 100k on extreme inputs. But that's very unlikely to occur in natural video, ; and it's even more unlikely to not have any alternative mvs/modes with lower cost. %macro HSUM 3 %if cpuflag(sse2) movhlps %2, %1 paddusw %1, %2 pshuflw %2, %1, 0xE paddusw %1, %2 pshuflw %2, %1, 0x1 paddusw %1, %2 movd %3, %1 %elif cpuflag(mmxext) pshufw %2, %1, 0xE paddusw %1, %2 pshufw %2, %1, 0x1 paddusw %1, %2 movd %3, %1 %elif cpuflag(mmx) mova %2, %1 psrlq %1, 32 paddusw %1, %2 mova %2, %1 psrlq %1, 16 paddusw %1, %2 movd %3, %1 %endif %endmacro %macro STORE4 5 mova [%1+mmsize*0], %2 mova [%1+mmsize*1], %3 mova [%1+mmsize*2], %4 mova [%1+mmsize*3], %5 %endmacro %macro LOAD4 5 mova %2, [%1+mmsize*0] mova %3, [%1+mmsize*1] mova %4, [%1+mmsize*2] mova %5, [%1+mmsize*3] %endmacro %macro hadamard8_16_wrapper 2 cglobal hadamard8_diff, 4, 4, %1 %ifndef m8 %assign pad %2*mmsize-(4+stack_offset&(mmsize-1)) SUB rsp, pad %endif call hadamard8x8_diff %+ SUFFIX %ifndef m8 ADD rsp, pad %endif RET cglobal hadamard8_diff16, 5, 6, %1 %ifndef m8 %assign pad %2*mmsize-(4+stack_offset&(mmsize-1)) SUB rsp, pad %endif call hadamard8x8_diff %+ SUFFIX mov r5d, eax add r1, 8 add r2, 8 call hadamard8x8_diff %+ SUFFIX add r5d, eax cmp r4d, 16 jne .done lea r1, [r1+r3*8-8] lea r2, [r2+r3*8-8] call hadamard8x8_diff %+ SUFFIX add r5d, eax add r1, 8 add r2, 8 call hadamard8x8_diff %+ SUFFIX add r5d, eax .done: mov eax, r5d %ifndef m8 ADD rsp, pad %endif RET %endmacro %macro HADAMARD8_DIFF 0-1 %if cpuflag(sse2) hadamard8x8_diff %+ SUFFIX: lea r0, [r3*3] DIFF_PIXELS_8 r1, r2, 0, r3, r0, rsp+gprsize HADAMARD8 %if ARCH_X86_64 TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, 8 %else TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, [rsp+gprsize], [rsp+mmsize+gprsize] %endif HADAMARD8 ABS_SUM_8x8 rsp+gprsize HSUM m0, m1, eax and eax, 0xFFFF ret hadamard8_16_wrapper %1, 3 %elif cpuflag(mmx) ALIGN 16 ; int ff_hadamard8_diff_ ## cpu(MpegEncContext *s, uint8_t *src1, ; uint8_t *src2, int stride, int h) ; r0 = void *s = unused, int h = unused (always 8) ; note how r1, r2 and r3 are not clobbered in this function, so 16x16 ; can simply call this 2x2x (and that's why we access rsp+gprsize ; everywhere, which is rsp of calling func hadamard8x8_diff %+ SUFFIX: lea r0, [r3*3] ; first 4x8 pixels DIFF_PIXELS_8 r1, r2, 0, r3, r0, rsp+gprsize+0x60 HADAMARD8 mova [rsp+gprsize+0x60], m7 TRANSPOSE4x4W 0, 1, 2, 3, 7 STORE4 rsp+gprsize, m0, m1, m2, m3 mova m7, [rsp+gprsize+0x60] TRANSPOSE4x4W 4, 5, 6, 7, 0 STORE4 rsp+gprsize+0x40, m4, m5, m6, m7 ; second 4x8 pixels DIFF_PIXELS_8 r1, r2, 4, r3, r0, rsp+gprsize+0x60 HADAMARD8 mova [rsp+gprsize+0x60], m7 TRANSPOSE4x4W 0, 1, 2, 3, 7 STORE4 rsp+gprsize+0x20, m0, m1, m2, m3 mova m7, [rsp+gprsize+0x60] TRANSPOSE4x4W 4, 5, 6, 7, 0 LOAD4 rsp+gprsize+0x40, m0, m1, m2, m3 HADAMARD8 ABS_SUM_8x8_32 rsp+gprsize+0x60 mova [rsp+gprsize+0x60], m0 LOAD4 rsp+gprsize , m0, m1, m2, m3 LOAD4 rsp+gprsize+0x20, m4, m5, m6, m7 HADAMARD8 ABS_SUM_8x8_32 rsp+gprsize paddusw m0, [rsp+gprsize+0x60] HSUM m0, m1, eax and rax, 0xFFFF ret hadamard8_16_wrapper 0, 14 %endif %endmacro INIT_MMX mmx HADAMARD8_DIFF INIT_MMX mmxext HADAMARD8_DIFF INIT_XMM sse2 %if ARCH_X86_64 %define ABS_SUM_8x8 ABS_SUM_8x8_64 %else %define ABS_SUM_8x8 ABS_SUM_8x8_32 %endif HADAMARD8_DIFF 10 INIT_XMM ssse3 %define ABS_SUM_8x8 ABS_SUM_8x8_64 HADAMARD8_DIFF 9 INIT_XMM sse2 ; int ff_sse16_sse2(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ; int line_size, int h); cglobal sse16, 5, 5, 8 shr r4d, 1 pxor m0, m0 ; mm0 = 0 pxor m7, m7 ; mm7 holds the sum .next2lines: ; FIXME why are these unaligned movs? pix1[] is aligned movu m1, [r1 ] ; mm1 = pix1[0][0-15] movu m2, [r2 ] ; mm2 = pix2[0][0-15] movu m3, [r1+r3] ; mm3 = pix1[1][0-15] movu m4, [r2+r3] ; mm4 = pix2[1][0-15] ; todo: mm1-mm2, mm3-mm4 ; algo: subtract mm1 from mm2 with saturation and vice versa ; OR the result to get the absolute difference mova m5, m1 mova m6, m3 psubusb m1, m2 psubusb m3, m4 psubusb m2, m5 psubusb m4, m6 por m2, m1 por m4, m3 ; now convert to 16-bit vectors so we can square them mova m1, m2 mova m3, m4 punpckhbw m2, m0 punpckhbw m4, m0 punpcklbw m1, m0 ; mm1 not spread over (mm1,mm2) punpcklbw m3, m0 ; mm4 not spread over (mm3,mm4) pmaddwd m2, m2 pmaddwd m4, m4 pmaddwd m1, m1 pmaddwd m3, m3 lea r1, [r1+r3*2] ; pix1 += 2*line_size lea r2, [r2+r3*2] ; pix2 += 2*line_size paddd m1, m2 paddd m3, m4 paddd m7, m1 paddd m7, m3 dec r4 jnz .next2lines HADDD m7, m1 movd eax, m7 ; return value RET INIT_MMX mmx ; void ff_get_pixels_mmx(int16_t *block, const uint8_t *pixels, int line_size) cglobal get_pixels, 3,4 movsxdifnidn r2, r2d add r0, 128 mov r3, -128 pxor m7, m7 .loop: mova m0, [r1] mova m2, [r1+r2] mova m1, m0 mova m3, m2 punpcklbw m0, m7 punpckhbw m1, m7 punpcklbw m2, m7 punpckhbw m3, m7 mova [r0+r3+ 0], m0 mova [r0+r3+ 8], m1 mova [r0+r3+16], m2 mova [r0+r3+24], m3 lea r1, [r1+r2*2] add r3, 32 js .loop REP_RET INIT_XMM sse2 cglobal get_pixels, 3, 4, 5 movsxdifnidn r2, r2d lea r3, [r2*3] pxor m4, m4 movh m0, [r1] movh m1, [r1+r2] movh m2, [r1+r2*2] movh m3, [r1+r3] lea r1, [r1+r2*4] punpcklbw m0, m4 punpcklbw m1, m4 punpcklbw m2, m4 punpcklbw m3, m4 mova [r0], m0 mova [r0+0x10], m1 mova [r0+0x20], m2 mova [r0+0x30], m3 movh m0, [r1] movh m1, [r1+r2*1] movh m2, [r1+r2*2] movh m3, [r1+r3] punpcklbw m0, m4 punpcklbw m1, m4 punpcklbw m2, m4 punpcklbw m3, m4 mova [r0+0x40], m0 mova [r0+0x50], m1 mova [r0+0x60], m2 mova [r0+0x70], m3 RET INIT_MMX mmx ; void ff_diff_pixels_mmx(int16_t *block, const uint8_t *s1, const uint8_t *s2, ; int stride); cglobal diff_pixels, 4,5 movsxdifnidn r3, r3d pxor m7, m7 add r0, 128 mov r4, -128 .loop: mova m0, [r1] mova m2, [r2] mova m1, m0 mova m3, m2 punpcklbw m0, m7 punpckhbw m1, m7 punpcklbw m2, m7 punpckhbw m3, m7 psubw m0, m2 psubw m1, m3 mova [r0+r4+0], m0 mova [r0+r4+8], m1 add r1, r3 add r2, r3 add r4, 16 jne .loop REP_RET INIT_XMM sse2 cglobal diff_pixels, 4, 5, 5 movsxdifnidn r3, r3d pxor m4, m4 add r0, 128 mov r4, -128 .loop: movh m0, [r1] movh m2, [r2] movh m1, [r1+r3] movh m3, [r2+r3] punpcklbw m0, m4 punpcklbw m1, m4 punpcklbw m2, m4 punpcklbw m3, m4 psubw m0, m2 psubw m1, m3 mova [r0+r4+0 ], m0 mova [r0+r4+16], m1 lea r1, [r1+r3*2] lea r2, [r2+r3*2] add r4, 32 jne .loop RET ; int ff_pix_sum16_mmx(uint8_t *pix, int line_size) ; %1 = number of xmm registers used ; %2 = number of loops ; %3 = number of GPRs used %macro PIX_SUM16 4 cglobal pix_sum16, 2, %3, %1 movsxdifnidn r1, r1d mov r2, %2 %if cpuflag(xop) lea r3, [r1*3] %else pxor m5, m5 %endif pxor m4, m4 .loop: %if cpuflag(xop) vphaddubq m0, [r0] vphaddubq m1, [r0+r1] vphaddubq m2, [r0+r1*2] vphaddubq m3, [r0+r3] %else mova m0, [r0] %if mmsize == 8 mova m1, [r0+8] %else mova m1, [r0+r1] %endif punpckhbw m2, m0, m5 punpcklbw m0, m5 punpckhbw m3, m1, m5 punpcklbw m1, m5 %endif ; cpuflag(xop) paddw m1, m0 paddw m3, m2 paddw m3, m1 paddw m4, m3 %if mmsize == 8 add r0, r1 %else lea r0, [r0+r1*%4] %endif dec r2 jne .loop %if cpuflag(xop) pshufd m0, m4, q0032 paddd m4, m0 %else HADDW m4, m5 %endif movd eax, m4 RET %endmacro INIT_MMX mmx PIX_SUM16 0, 16, 3, 0 INIT_XMM sse2 PIX_SUM16 6, 8, 3, 2 INIT_XMM xop PIX_SUM16 5, 4, 4, 4 ; int ff_pix_norm1_mmx(uint8_t *pix, int line_size) ; %1 = number of xmm registers used ; %2 = number of loops %macro PIX_NORM1 2 cglobal pix_norm1, 2, 3, %1 movsxdifnidn r1, r1d mov r2, %2 pxor m0, m0 pxor m5, m5 .loop: mova m2, [r0+0] %if mmsize == 8 mova m3, [r0+8] %else mova m3, [r0+r1] %endif punpckhbw m1, m2, m0 punpcklbw m2, m0 punpckhbw m4, m3, m0 punpcklbw m3, m0 pmaddwd m1, m1 pmaddwd m2, m2 pmaddwd m3, m3 pmaddwd m4, m4 paddd m2, m1 paddd m4, m3 paddd m5, m2 paddd m5, m4 %if mmsize == 8 add r0, r1 %else lea r0, [r0+r1*2] %endif dec r2 jne .loop HADDD m5, m1 movd eax, m5 RET %endmacro INIT_MMX mmx PIX_NORM1 0, 16 INIT_XMM sse2 PIX_NORM1 6, 8 ;----------------------------------------------- ;int ff_sum_abs_dctelem(int16_t *block) ;----------------------------------------------- ; %1 = number of xmm registers used ; %2 = number of inline loops %macro SUM_ABS_DCTELEM 2 cglobal sum_abs_dctelem, 1, 1, %1, block pxor m0, m0 pxor m1, m1 %assign %%i 0 %rep %2 mova m2, [blockq+mmsize*(0+%%i)] mova m3, [blockq+mmsize*(1+%%i)] mova m4, [blockq+mmsize*(2+%%i)] mova m5, [blockq+mmsize*(3+%%i)] ABS1_SUM m2, m6, m0 ABS1_SUM m3, m6, m1 ABS1_SUM m4, m6, m0 ABS1_SUM m5, m6, m1 %assign %%i %%i+4 %endrep paddusw m0, m1 HSUM m0, m1, eax and eax, 0xFFFF RET %endmacro INIT_MMX mmx SUM_ABS_DCTELEM 0, 4 INIT_MMX mmxext SUM_ABS_DCTELEM 0, 4 INIT_XMM sse2 SUM_ABS_DCTELEM 7, 2 INIT_XMM ssse3 SUM_ABS_DCTELEM 6, 2