/* * Copyright (c) 2004 Romain Dolbeau * * 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/mem.h" #include "libavutil/ppc/types_altivec.h" #include "libavutil/ppc/util_altivec.h" /* this code assume that stride % 16 == 0 */ #define CHROMA_MC8_ALTIVEC_CORE(BIAS1, BIAS2) \ vsrc2ssH = (vec_s16)VEC_MERGEH(zero_u8v,(vec_u8)vsrc2uc);\ vsrc3ssH = (vec_s16)VEC_MERGEH(zero_u8v,(vec_u8)vsrc3uc);\ \ psum = vec_mladd(vA, vsrc0ssH, BIAS1);\ psum = vec_mladd(vB, vsrc1ssH, psum);\ psum = vec_mladd(vC, vsrc2ssH, psum);\ psum = vec_mladd(vD, vsrc3ssH, psum);\ psum = BIAS2(psum);\ psum = vec_sr(psum, v6us);\ \ vdst = vec_ld(0, dst);\ ppsum = (vec_u8)vec_pack(psum, psum);\ vfdst = vec_perm(vdst, ppsum, fperm);\ \ OP_U8_ALTIVEC(fsum, vfdst, vdst);\ \ vec_st(fsum, 0, dst);\ \ vsrc0ssH = vsrc2ssH;\ vsrc1ssH = vsrc3ssH;\ \ dst += stride;\ src += stride; #define CHROMA_MC8_ALTIVEC_CORE_SIMPLE \ \ vsrc0ssH = (vec_s16)VEC_MERGEH(zero_u8v,(vec_u8)vsrc0uc);\ vsrc1ssH = (vec_s16)VEC_MERGEH(zero_u8v,(vec_u8)vsrc1uc);\ \ psum = vec_mladd(vA, vsrc0ssH, v32ss);\ psum = vec_mladd(vE, vsrc1ssH, psum);\ psum = vec_sr(psum, v6us);\ \ vdst = vec_ld(0, dst);\ ppsum = (vec_u8)vec_pack(psum, psum);\ vfdst = vec_perm(vdst, ppsum, fperm);\ \ OP_U8_ALTIVEC(fsum, vfdst, vdst);\ \ vec_st(fsum, 0, dst);\ \ dst += stride;\ src += stride; #define noop(a) a #define add28(a) vec_add(v28ss, a) #if HAVE_BIGENDIAN #define GET_VSRC1(vs0, off, b, perm0, s){ \ vec_u8 vsrcCuc, vsrcDuc; \ vsrcCuc = vec_ld(off, s); \ if (loadSecond){ \ vsrcDuc = vec_ld(off + b, s); \ } else \ vsrcDuc = vsrcCuc; \ \ vs0 = vec_perm(vsrcCuc, vsrcDuc, perm0); \ } #define GET_VSRC(vs0, vs1, off, b, perm0, perm1, s){ \ vec_u8 vsrcCuc, vsrcDuc; \ vsrcCuc = vec_ld(off, s); \ if (loadSecond){ \ vsrcDuc = vec_ld(off + b, s); \ } else \ vsrcDuc = vsrcCuc; \ \ vs0 = vec_perm(vsrcCuc, vsrcDuc, perm0); \ if (reallyBadAlign){ \ vs1 = vsrcDuc; \ } else \ vs1 = vec_perm(vsrcCuc, vsrcDuc, perm1); \ } #else #define GET_VSRC1(vs0, off, b, perm0, s){ \ vs0 = vec_vsx_ld(off, s); \ } #define GET_VSRC(vs0, vs1, off, b, perm0, perm1, s){ \ vs0 = vec_vsx_ld(off, s); \ vs1 = vec_vsx_ld(off + 1, s); \ } #endif /* HAVE_BIGENDIAN */ #ifdef PREFIX_h264_chroma_mc8_altivec static void PREFIX_h264_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, ptrdiff_t stride, int h, int x, int y) { DECLARE_ALIGNED(16, signed int, ABCD)[4] = {((8 - x) * (8 - y)), (( x) * (8 - y)), ((8 - x) * ( y)), (( x) * ( y))}; register int i; vec_u8 fperm; LOAD_ZERO; const vec_s32 vABCD = vec_ld(0, ABCD); const vec_s16 vA = VEC_SPLAT16(vABCD, 1); const vec_s16 vB = VEC_SPLAT16(vABCD, 3); const vec_s16 vC = VEC_SPLAT16(vABCD, 5); const vec_s16 vD = VEC_SPLAT16(vABCD, 7); const vec_s16 v32ss = vec_sl(vec_splat_s16(1),vec_splat_u16(5)); const vec_u16 v6us = vec_splat_u16(6); vec_u8 vsrcperm0, vsrcperm1; vec_u8 vsrc0uc, vsrc1uc; vec_s16 vsrc0ssH, vsrc1ssH; vec_u8 vsrc2uc, vsrc3uc; vec_s16 vsrc2ssH, vsrc3ssH, psum; vec_u8 vdst, ppsum, vfdst, fsum; #if HAVE_BIGENDIAN register int loadSecond = (((unsigned long)src) % 16) <= 7 ? 0 : 1; register int reallyBadAlign = (((unsigned long)src) % 16) == 15 ? 1 : 0; vsrcperm0 = vec_lvsl(0, src); vsrcperm1 = vec_lvsl(1, src); #endif if (((unsigned long)dst) % 16 == 0) { fperm = (vec_u8){0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F}; } else { fperm = (vec_u8){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F}; } GET_VSRC(vsrc0uc, vsrc1uc, 0, 16, vsrcperm0, vsrcperm1, src); vsrc0ssH = (vec_s16)VEC_MERGEH(zero_u8v,(vec_u8)vsrc0uc); vsrc1ssH = (vec_s16)VEC_MERGEH(zero_u8v,(vec_u8)vsrc1uc); if (ABCD[3]) { for (i = 0 ; i < h ; i++) { GET_VSRC(vsrc2uc, vsrc3uc, stride, 16, vsrcperm0, vsrcperm1, src); CHROMA_MC8_ALTIVEC_CORE(v32ss, noop); } } else { const vec_s16 vE = vec_add(vB, vC); if (ABCD[2]) { // x == 0 B == 0 for (i = 0 ; i < h ; i++) { GET_VSRC1(vsrc1uc, stride, 15, vsrcperm0, src); CHROMA_MC8_ALTIVEC_CORE_SIMPLE; vsrc0uc = vsrc1uc; } } else { // y == 0 C == 0 for (i = 0 ; i < h ; i++) { GET_VSRC(vsrc0uc, vsrc1uc, 0, 15, vsrcperm0, vsrcperm1, src); CHROMA_MC8_ALTIVEC_CORE_SIMPLE; } } } } #endif /* this code assume that stride % 16 == 0 */ #ifdef PREFIX_no_rnd_vc1_chroma_mc8_altivec static void PREFIX_no_rnd_vc1_chroma_mc8_altivec(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y) { DECLARE_ALIGNED(16, signed int, ABCD)[4] = {((8 - x) * (8 - y)), (( x) * (8 - y)), ((8 - x) * ( y)), (( x) * ( y))}; register int i; vec_u8 fperm; LOAD_ZERO; const vec_s32 vABCD = vec_ld(0, ABCD); const vec_s16 vA = VEC_SPLAT16(vABCD, 1); const vec_s16 vB = VEC_SPLAT16(vABCD, 3); const vec_s16 vC = VEC_SPLAT16(vABCD, 5); const vec_s16 vD = VEC_SPLAT16(vABCD, 7); const vec_s16 v28ss = vec_sub(vec_sl(vec_splat_s16(1),vec_splat_u16(5)),vec_splat_s16(4)); const vec_u16 v6us = vec_splat_u16(6); vec_u8 vsrcperm0, vsrcperm1; vec_u8 vsrc0uc, vsrc1uc; vec_s16 vsrc0ssH, vsrc1ssH; vec_u8 vsrc2uc, vsrc3uc; vec_s16 vsrc2ssH, vsrc3ssH, psum; vec_u8 vdst, ppsum, vfdst, fsum; #if HAVE_BIGENDIAN register int loadSecond = (((unsigned long)src) % 16) <= 7 ? 0 : 1; register int reallyBadAlign = (((unsigned long)src) % 16) == 15 ? 1 : 0; vsrcperm0 = vec_lvsl(0, src); vsrcperm1 = vec_lvsl(1, src); #endif if (((unsigned long)dst) % 16 == 0) { fperm = (vec_u8){0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F}; } else { fperm = (vec_u8){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F}; } GET_VSRC(vsrc0uc, vsrc1uc, 0, 16, vsrcperm0, vsrcperm1, src); vsrc0ssH = (vec_s16)VEC_MERGEH(zero_u8v, (vec_u8)vsrc0uc); vsrc1ssH = (vec_s16)VEC_MERGEH(zero_u8v, (vec_u8)vsrc1uc); for (i = 0 ; i < h ; i++) { GET_VSRC(vsrc2uc, vsrc3uc, stride, 16, vsrcperm0, vsrcperm1, src); CHROMA_MC8_ALTIVEC_CORE(vec_splat_s16(0), add28); } } #endif #undef noop #undef add28 #undef CHROMA_MC8_ALTIVEC_CORE