diff options
Diffstat (limited to 'ffmpeg/libavcodec/ppc/h264_altivec.c')
| -rw-r--r-- | ffmpeg/libavcodec/ppc/h264_altivec.c | 748 |
1 files changed, 0 insertions, 748 deletions
diff --git a/ffmpeg/libavcodec/ppc/h264_altivec.c b/ffmpeg/libavcodec/ppc/h264_altivec.c deleted file mode 100644 index 3c2bb4d..0000000 --- a/ffmpeg/libavcodec/ppc/h264_altivec.c +++ /dev/null @@ -1,748 +0,0 @@ -/* - * Copyright (c) 2004 Romain Dolbeau <romain@dolbeau.org> - * - * 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/attributes.h" -#include "libavutil/cpu.h" -#include "libavutil/intreadwrite.h" -#include "libavutil/ppc/types_altivec.h" -#include "libavutil/ppc/util_altivec.h" -#include "libavcodec/h264data.h" -#include "libavcodec/h264dsp.h" - -/**************************************************************************** - * IDCT transform: - ****************************************************************************/ - -#define VEC_1D_DCT(vb0,vb1,vb2,vb3,va0,va1,va2,va3) \ - /* 1st stage */ \ - vz0 = vec_add(vb0,vb2); /* temp[0] = Y[0] + Y[2] */ \ - vz1 = vec_sub(vb0,vb2); /* temp[1] = Y[0] - Y[2] */ \ - vz2 = vec_sra(vb1,vec_splat_u16(1)); \ - vz2 = vec_sub(vz2,vb3); /* temp[2] = Y[1].1/2 - Y[3] */ \ - vz3 = vec_sra(vb3,vec_splat_u16(1)); \ - vz3 = vec_add(vb1,vz3); /* temp[3] = Y[1] + Y[3].1/2 */ \ - /* 2nd stage: output */ \ - va0 = vec_add(vz0,vz3); /* x[0] = temp[0] + temp[3] */ \ - va1 = vec_add(vz1,vz2); /* x[1] = temp[1] + temp[2] */ \ - va2 = vec_sub(vz1,vz2); /* x[2] = temp[1] - temp[2] */ \ - va3 = vec_sub(vz0,vz3) /* x[3] = temp[0] - temp[3] */ - -#define VEC_TRANSPOSE_4(a0,a1,a2,a3,b0,b1,b2,b3) \ - b0 = vec_mergeh( a0, a0 ); \ - b1 = vec_mergeh( a1, a0 ); \ - b2 = vec_mergeh( a2, a0 ); \ - b3 = vec_mergeh( a3, a0 ); \ - a0 = vec_mergeh( b0, b2 ); \ - a1 = vec_mergel( b0, b2 ); \ - a2 = vec_mergeh( b1, b3 ); \ - a3 = vec_mergel( b1, b3 ); \ - b0 = vec_mergeh( a0, a2 ); \ - b1 = vec_mergel( a0, a2 ); \ - b2 = vec_mergeh( a1, a3 ); \ - b3 = vec_mergel( a1, a3 ) - -#define VEC_LOAD_U8_ADD_S16_STORE_U8(va) \ - vdst_orig = vec_ld(0, dst); \ - vdst = vec_perm(vdst_orig, zero_u8v, vdst_mask); \ - vdst_ss = (vec_s16) vec_mergeh(zero_u8v, vdst); \ - va = vec_add(va, vdst_ss); \ - va_u8 = vec_packsu(va, zero_s16v); \ - va_u32 = vec_splat((vec_u32)va_u8, 0); \ - vec_ste(va_u32, element, (uint32_t*)dst); - -static void ff_h264_idct_add_altivec(uint8_t *dst, int16_t *block, int stride) -{ - vec_s16 va0, va1, va2, va3; - vec_s16 vz0, vz1, vz2, vz3; - vec_s16 vtmp0, vtmp1, vtmp2, vtmp3; - vec_u8 va_u8; - vec_u32 va_u32; - vec_s16 vdst_ss; - const vec_u16 v6us = vec_splat_u16(6); - vec_u8 vdst, vdst_orig; - vec_u8 vdst_mask = vec_lvsl(0, dst); - int element = ((unsigned long)dst & 0xf) >> 2; - LOAD_ZERO; - - block[0] += 32; /* add 32 as a DC-level for rounding */ - - vtmp0 = vec_ld(0,block); - vtmp1 = vec_sld(vtmp0, vtmp0, 8); - vtmp2 = vec_ld(16,block); - vtmp3 = vec_sld(vtmp2, vtmp2, 8); - memset(block, 0, 16 * sizeof(int16_t)); - - VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3); - VEC_TRANSPOSE_4(va0,va1,va2,va3,vtmp0,vtmp1,vtmp2,vtmp3); - VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3); - - va0 = vec_sra(va0,v6us); - va1 = vec_sra(va1,v6us); - va2 = vec_sra(va2,v6us); - va3 = vec_sra(va3,v6us); - - VEC_LOAD_U8_ADD_S16_STORE_U8(va0); - dst += stride; - VEC_LOAD_U8_ADD_S16_STORE_U8(va1); - dst += stride; - VEC_LOAD_U8_ADD_S16_STORE_U8(va2); - dst += stride; - VEC_LOAD_U8_ADD_S16_STORE_U8(va3); -} - -#define IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7, d0, d1, d2, d3, d4, d5, d6, d7) {\ - /* a0 = SRC(0) + SRC(4); */ \ - vec_s16 a0v = vec_add(s0, s4); \ - /* a2 = SRC(0) - SRC(4); */ \ - vec_s16 a2v = vec_sub(s0, s4); \ - /* a4 = (SRC(2)>>1) - SRC(6); */ \ - vec_s16 a4v = vec_sub(vec_sra(s2, onev), s6); \ - /* a6 = (SRC(6)>>1) + SRC(2); */ \ - vec_s16 a6v = vec_add(vec_sra(s6, onev), s2); \ - /* b0 = a0 + a6; */ \ - vec_s16 b0v = vec_add(a0v, a6v); \ - /* b2 = a2 + a4; */ \ - vec_s16 b2v = vec_add(a2v, a4v); \ - /* b4 = a2 - a4; */ \ - vec_s16 b4v = vec_sub(a2v, a4v); \ - /* b6 = a0 - a6; */ \ - vec_s16 b6v = vec_sub(a0v, a6v); \ - /* a1 = SRC(5) - SRC(3) - SRC(7) - (SRC(7)>>1); */ \ - /* a1 = (SRC(5)-SRC(3)) - (SRC(7) + (SRC(7)>>1)); */ \ - vec_s16 a1v = vec_sub( vec_sub(s5, s3), vec_add(s7, vec_sra(s7, onev)) ); \ - /* a3 = SRC(7) + SRC(1) - SRC(3) - (SRC(3)>>1); */ \ - /* a3 = (SRC(7)+SRC(1)) - (SRC(3) + (SRC(3)>>1)); */ \ - vec_s16 a3v = vec_sub( vec_add(s7, s1), vec_add(s3, vec_sra(s3, onev)) );\ - /* a5 = SRC(7) - SRC(1) + SRC(5) + (SRC(5)>>1); */ \ - /* a5 = (SRC(7)-SRC(1)) + SRC(5) + (SRC(5)>>1); */ \ - vec_s16 a5v = vec_add( vec_sub(s7, s1), vec_add(s5, vec_sra(s5, onev)) );\ - /* a7 = SRC(5)+SRC(3) + SRC(1) + (SRC(1)>>1); */ \ - vec_s16 a7v = vec_add( vec_add(s5, s3), vec_add(s1, vec_sra(s1, onev)) );\ - /* b1 = (a7>>2) + a1; */ \ - vec_s16 b1v = vec_add( vec_sra(a7v, twov), a1v); \ - /* b3 = a3 + (a5>>2); */ \ - vec_s16 b3v = vec_add(a3v, vec_sra(a5v, twov)); \ - /* b5 = (a3>>2) - a5; */ \ - vec_s16 b5v = vec_sub( vec_sra(a3v, twov), a5v); \ - /* b7 = a7 - (a1>>2); */ \ - vec_s16 b7v = vec_sub( a7v, vec_sra(a1v, twov)); \ - /* DST(0, b0 + b7); */ \ - d0 = vec_add(b0v, b7v); \ - /* DST(1, b2 + b5); */ \ - d1 = vec_add(b2v, b5v); \ - /* DST(2, b4 + b3); */ \ - d2 = vec_add(b4v, b3v); \ - /* DST(3, b6 + b1); */ \ - d3 = vec_add(b6v, b1v); \ - /* DST(4, b6 - b1); */ \ - d4 = vec_sub(b6v, b1v); \ - /* DST(5, b4 - b3); */ \ - d5 = vec_sub(b4v, b3v); \ - /* DST(6, b2 - b5); */ \ - d6 = vec_sub(b2v, b5v); \ - /* DST(7, b0 - b7); */ \ - d7 = vec_sub(b0v, b7v); \ -} - -#define ALTIVEC_STORE_SUM_CLIP(dest, idctv, perm_ldv, perm_stv, sel) { \ - /* unaligned load */ \ - vec_u8 hv = vec_ld( 0, dest ); \ - vec_u8 lv = vec_ld( 7, dest ); \ - vec_u8 dstv = vec_perm( hv, lv, (vec_u8)perm_ldv ); \ - vec_s16 idct_sh6 = vec_sra(idctv, sixv); \ - vec_u16 dst16 = (vec_u16)vec_mergeh(zero_u8v, dstv); \ - vec_s16 idstsum = vec_adds(idct_sh6, (vec_s16)dst16); \ - vec_u8 idstsum8 = vec_packsu(zero_s16v, idstsum); \ - vec_u8 edgehv; \ - /* unaligned store */ \ - vec_u8 bodyv = vec_perm( idstsum8, idstsum8, perm_stv );\ - vec_u8 edgelv = vec_perm( sel, zero_u8v, perm_stv ); \ - lv = vec_sel( lv, bodyv, edgelv ); \ - vec_st( lv, 7, dest ); \ - hv = vec_ld( 0, dest ); \ - edgehv = vec_perm( zero_u8v, sel, perm_stv ); \ - hv = vec_sel( hv, bodyv, edgehv ); \ - vec_st( hv, 0, dest ); \ - } - -static void ff_h264_idct8_add_altivec( uint8_t *dst, int16_t *dct, int stride ) { - vec_s16 s0, s1, s2, s3, s4, s5, s6, s7; - vec_s16 d0, d1, d2, d3, d4, d5, d6, d7; - vec_s16 idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7; - - vec_u8 perm_ldv = vec_lvsl(0, dst); - vec_u8 perm_stv = vec_lvsr(8, dst); - - const vec_u16 onev = vec_splat_u16(1); - const vec_u16 twov = vec_splat_u16(2); - const vec_u16 sixv = vec_splat_u16(6); - - const vec_u8 sel = (vec_u8) {0,0,0,0,0,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1}; - LOAD_ZERO; - - dct[0] += 32; // rounding for the >>6 at the end - - s0 = vec_ld(0x00, (int16_t*)dct); - s1 = vec_ld(0x10, (int16_t*)dct); - s2 = vec_ld(0x20, (int16_t*)dct); - s3 = vec_ld(0x30, (int16_t*)dct); - s4 = vec_ld(0x40, (int16_t*)dct); - s5 = vec_ld(0x50, (int16_t*)dct); - s6 = vec_ld(0x60, (int16_t*)dct); - s7 = vec_ld(0x70, (int16_t*)dct); - memset(dct, 0, 64 * sizeof(int16_t)); - - IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7, - d0, d1, d2, d3, d4, d5, d6, d7); - - TRANSPOSE8( d0, d1, d2, d3, d4, d5, d6, d7 ); - - IDCT8_1D_ALTIVEC(d0, d1, d2, d3, d4, d5, d6, d7, - idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7); - - ALTIVEC_STORE_SUM_CLIP(&dst[0*stride], idct0, perm_ldv, perm_stv, sel); - ALTIVEC_STORE_SUM_CLIP(&dst[1*stride], idct1, perm_ldv, perm_stv, sel); - ALTIVEC_STORE_SUM_CLIP(&dst[2*stride], idct2, perm_ldv, perm_stv, sel); - ALTIVEC_STORE_SUM_CLIP(&dst[3*stride], idct3, perm_ldv, perm_stv, sel); - ALTIVEC_STORE_SUM_CLIP(&dst[4*stride], idct4, perm_ldv, perm_stv, sel); - ALTIVEC_STORE_SUM_CLIP(&dst[5*stride], idct5, perm_ldv, perm_stv, sel); - ALTIVEC_STORE_SUM_CLIP(&dst[6*stride], idct6, perm_ldv, perm_stv, sel); - ALTIVEC_STORE_SUM_CLIP(&dst[7*stride], idct7, perm_ldv, perm_stv, sel); -} - -static av_always_inline void h264_idct_dc_add_internal(uint8_t *dst, int16_t *block, int stride, int size) -{ - vec_s16 dc16; - vec_u8 dcplus, dcminus, v0, v1, v2, v3, aligner; - LOAD_ZERO; - DECLARE_ALIGNED(16, int, dc); - int i; - - dc = (block[0] + 32) >> 6; - block[0] = 0; - dc16 = vec_splat((vec_s16) vec_lde(0, &dc), 1); - - if (size == 4) - dc16 = vec_sld(dc16, zero_s16v, 8); - dcplus = vec_packsu(dc16, zero_s16v); - dcminus = vec_packsu(vec_sub(zero_s16v, dc16), zero_s16v); - - aligner = vec_lvsr(0, dst); - dcplus = vec_perm(dcplus, dcplus, aligner); - dcminus = vec_perm(dcminus, dcminus, aligner); - - for (i = 0; i < size; i += 4) { - v0 = vec_ld(0, dst+0*stride); - v1 = vec_ld(0, dst+1*stride); - v2 = vec_ld(0, dst+2*stride); - v3 = vec_ld(0, dst+3*stride); - - v0 = vec_adds(v0, dcplus); - v1 = vec_adds(v1, dcplus); - v2 = vec_adds(v2, dcplus); - v3 = vec_adds(v3, dcplus); - - v0 = vec_subs(v0, dcminus); - v1 = vec_subs(v1, dcminus); - v2 = vec_subs(v2, dcminus); - v3 = vec_subs(v3, dcminus); - - vec_st(v0, 0, dst+0*stride); - vec_st(v1, 0, dst+1*stride); - vec_st(v2, 0, dst+2*stride); - vec_st(v3, 0, dst+3*stride); - - dst += 4*stride; - } -} - -static void h264_idct_dc_add_altivec(uint8_t *dst, int16_t *block, int stride) -{ - h264_idct_dc_add_internal(dst, block, stride, 4); -} - -static void ff_h264_idct8_dc_add_altivec(uint8_t *dst, int16_t *block, int stride) -{ - h264_idct_dc_add_internal(dst, block, stride, 8); -} - -static void ff_h264_idct_add16_altivec(uint8_t *dst, const int *block_offset, int16_t *block, int stride, const uint8_t nnzc[15*8]){ - int i; - for(i=0; i<16; i++){ - int nnz = nnzc[ scan8[i] ]; - if(nnz){ - if(nnz==1 && block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride); - else ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride); - } - } -} - -static void ff_h264_idct_add16intra_altivec(uint8_t *dst, const int *block_offset, int16_t *block, int stride, const uint8_t nnzc[15*8]){ - int i; - for(i=0; i<16; i++){ - if(nnzc[ scan8[i] ]) ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride); - else if(block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride); - } -} - -static void ff_h264_idct8_add4_altivec(uint8_t *dst, const int *block_offset, int16_t *block, int stride, const uint8_t nnzc[15*8]){ - int i; - for(i=0; i<16; i+=4){ - int nnz = nnzc[ scan8[i] ]; - if(nnz){ - if(nnz==1 && block[i*16]) ff_h264_idct8_dc_add_altivec(dst + block_offset[i], block + i*16, stride); - else ff_h264_idct8_add_altivec (dst + block_offset[i], block + i*16, stride); - } - } -} - -static void ff_h264_idct_add8_altivec(uint8_t **dest, const int *block_offset, int16_t *block, int stride, const uint8_t nnzc[15*8]){ - int i, j; - for (j = 1; j < 3; j++) { - for(i = j * 16; i < j * 16 + 4; i++){ - if(nnzc[ scan8[i] ]) - ff_h264_idct_add_altivec(dest[j-1] + block_offset[i], block + i*16, stride); - else if(block[i*16]) - h264_idct_dc_add_altivec(dest[j-1] + block_offset[i], block + i*16, stride); - } - } -} - -#define transpose4x16(r0, r1, r2, r3) { \ - register vec_u8 r4; \ - register vec_u8 r5; \ - register vec_u8 r6; \ - register vec_u8 r7; \ - \ - r4 = vec_mergeh(r0, r2); /*0, 2 set 0*/ \ - r5 = vec_mergel(r0, r2); /*0, 2 set 1*/ \ - r6 = vec_mergeh(r1, r3); /*1, 3 set 0*/ \ - r7 = vec_mergel(r1, r3); /*1, 3 set 1*/ \ - \ - r0 = vec_mergeh(r4, r6); /*all set 0*/ \ - r1 = vec_mergel(r4, r6); /*all set 1*/ \ - r2 = vec_mergeh(r5, r7); /*all set 2*/ \ - r3 = vec_mergel(r5, r7); /*all set 3*/ \ -} - -static inline void write16x4(uint8_t *dst, int dst_stride, - register vec_u8 r0, register vec_u8 r1, - register vec_u8 r2, register vec_u8 r3) { - DECLARE_ALIGNED(16, unsigned char, result)[64]; - uint32_t *src_int = (uint32_t *)result, *dst_int = (uint32_t *)dst; - int int_dst_stride = dst_stride/4; - - vec_st(r0, 0, result); - vec_st(r1, 16, result); - vec_st(r2, 32, result); - vec_st(r3, 48, result); - /* FIXME: there has to be a better way!!!! */ - *dst_int = *src_int; - *(dst_int+ int_dst_stride) = *(src_int + 1); - *(dst_int+ 2*int_dst_stride) = *(src_int + 2); - *(dst_int+ 3*int_dst_stride) = *(src_int + 3); - *(dst_int+ 4*int_dst_stride) = *(src_int + 4); - *(dst_int+ 5*int_dst_stride) = *(src_int + 5); - *(dst_int+ 6*int_dst_stride) = *(src_int + 6); - *(dst_int+ 7*int_dst_stride) = *(src_int + 7); - *(dst_int+ 8*int_dst_stride) = *(src_int + 8); - *(dst_int+ 9*int_dst_stride) = *(src_int + 9); - *(dst_int+10*int_dst_stride) = *(src_int + 10); - *(dst_int+11*int_dst_stride) = *(src_int + 11); - *(dst_int+12*int_dst_stride) = *(src_int + 12); - *(dst_int+13*int_dst_stride) = *(src_int + 13); - *(dst_int+14*int_dst_stride) = *(src_int + 14); - *(dst_int+15*int_dst_stride) = *(src_int + 15); -} - -/** @brief performs a 6x16 transpose of data in src, and stores it to dst - @todo FIXME: see if we can't spare some vec_lvsl() by them factorizing - out of unaligned_load() */ -#define readAndTranspose16x6(src, src_stride, r8, r9, r10, r11, r12, r13) {\ - register vec_u8 r0 = unaligned_load(0, src); \ - register vec_u8 r1 = unaligned_load( src_stride, src); \ - register vec_u8 r2 = unaligned_load(2* src_stride, src); \ - register vec_u8 r3 = unaligned_load(3* src_stride, src); \ - register vec_u8 r4 = unaligned_load(4* src_stride, src); \ - register vec_u8 r5 = unaligned_load(5* src_stride, src); \ - register vec_u8 r6 = unaligned_load(6* src_stride, src); \ - register vec_u8 r7 = unaligned_load(7* src_stride, src); \ - register vec_u8 r14 = unaligned_load(14*src_stride, src); \ - register vec_u8 r15 = unaligned_load(15*src_stride, src); \ - \ - r8 = unaligned_load( 8*src_stride, src); \ - r9 = unaligned_load( 9*src_stride, src); \ - r10 = unaligned_load(10*src_stride, src); \ - r11 = unaligned_load(11*src_stride, src); \ - r12 = unaligned_load(12*src_stride, src); \ - r13 = unaligned_load(13*src_stride, src); \ - \ - /*Merge first pairs*/ \ - r0 = vec_mergeh(r0, r8); /*0, 8*/ \ - r1 = vec_mergeh(r1, r9); /*1, 9*/ \ - r2 = vec_mergeh(r2, r10); /*2,10*/ \ - r3 = vec_mergeh(r3, r11); /*3,11*/ \ - r4 = vec_mergeh(r4, r12); /*4,12*/ \ - r5 = vec_mergeh(r5, r13); /*5,13*/ \ - r6 = vec_mergeh(r6, r14); /*6,14*/ \ - r7 = vec_mergeh(r7, r15); /*7,15*/ \ - \ - /*Merge second pairs*/ \ - r8 = vec_mergeh(r0, r4); /*0,4, 8,12 set 0*/ \ - r9 = vec_mergel(r0, r4); /*0,4, 8,12 set 1*/ \ - r10 = vec_mergeh(r1, r5); /*1,5, 9,13 set 0*/ \ - r11 = vec_mergel(r1, r5); /*1,5, 9,13 set 1*/ \ - r12 = vec_mergeh(r2, r6); /*2,6,10,14 set 0*/ \ - r13 = vec_mergel(r2, r6); /*2,6,10,14 set 1*/ \ - r14 = vec_mergeh(r3, r7); /*3,7,11,15 set 0*/ \ - r15 = vec_mergel(r3, r7); /*3,7,11,15 set 1*/ \ - \ - /*Third merge*/ \ - r0 = vec_mergeh(r8, r12); /*0,2,4,6,8,10,12,14 set 0*/ \ - r1 = vec_mergel(r8, r12); /*0,2,4,6,8,10,12,14 set 1*/ \ - r2 = vec_mergeh(r9, r13); /*0,2,4,6,8,10,12,14 set 2*/ \ - r4 = vec_mergeh(r10, r14); /*1,3,5,7,9,11,13,15 set 0*/ \ - r5 = vec_mergel(r10, r14); /*1,3,5,7,9,11,13,15 set 1*/ \ - r6 = vec_mergeh(r11, r15); /*1,3,5,7,9,11,13,15 set 2*/ \ - /* Don't need to compute 3 and 7*/ \ - \ - /*Final merge*/ \ - r8 = vec_mergeh(r0, r4); /*all set 0*/ \ - r9 = vec_mergel(r0, r4); /*all set 1*/ \ - r10 = vec_mergeh(r1, r5); /*all set 2*/ \ - r11 = vec_mergel(r1, r5); /*all set 3*/ \ - r12 = vec_mergeh(r2, r6); /*all set 4*/ \ - r13 = vec_mergel(r2, r6); /*all set 5*/ \ - /* Don't need to compute 14 and 15*/ \ - \ -} - -// out: o = |x-y| < a -static inline vec_u8 diff_lt_altivec ( register vec_u8 x, - register vec_u8 y, - register vec_u8 a) { - - register vec_u8 diff = vec_subs(x, y); - register vec_u8 diffneg = vec_subs(y, x); - register vec_u8 o = vec_or(diff, diffneg); /* |x-y| */ - o = (vec_u8)vec_cmplt(o, a); - return o; -} - -static inline vec_u8 h264_deblock_mask ( register vec_u8 p0, - register vec_u8 p1, - register vec_u8 q0, - register vec_u8 q1, - register vec_u8 alpha, - register vec_u8 beta) { - - register vec_u8 mask; - register vec_u8 tempmask; - - mask = diff_lt_altivec(p0, q0, alpha); - tempmask = diff_lt_altivec(p1, p0, beta); - mask = vec_and(mask, tempmask); - tempmask = diff_lt_altivec(q1, q0, beta); - mask = vec_and(mask, tempmask); - - return mask; -} - -// out: newp1 = clip((p2 + ((p0 + q0 + 1) >> 1)) >> 1, p1-tc0, p1+tc0) -static inline vec_u8 h264_deblock_q1(register vec_u8 p0, - register vec_u8 p1, - register vec_u8 p2, - register vec_u8 q0, - register vec_u8 tc0) { - - register vec_u8 average = vec_avg(p0, q0); - register vec_u8 temp; - register vec_u8 uncliped; - register vec_u8 ones; - register vec_u8 max; - register vec_u8 min; - register vec_u8 newp1; - - temp = vec_xor(average, p2); - average = vec_avg(average, p2); /*avg(p2, avg(p0, q0)) */ - ones = vec_splat_u8(1); - temp = vec_and(temp, ones); /*(p2^avg(p0, q0)) & 1 */ - uncliped = vec_subs(average, temp); /*(p2+((p0+q0+1)>>1))>>1 */ - max = vec_adds(p1, tc0); - min = vec_subs(p1, tc0); - newp1 = vec_max(min, uncliped); - newp1 = vec_min(max, newp1); - return newp1; -} - -#define h264_deblock_p0_q0(p0, p1, q0, q1, tc0masked) { \ - \ - const vec_u8 A0v = vec_sl(vec_splat_u8(10), vec_splat_u8(4)); \ - \ - register vec_u8 pq0bit = vec_xor(p0,q0); \ - register vec_u8 q1minus; \ - register vec_u8 p0minus; \ - register vec_u8 stage1; \ - register vec_u8 stage2; \ - register vec_u8 vec160; \ - register vec_u8 delta; \ - register vec_u8 deltaneg; \ - \ - q1minus = vec_nor(q1, q1); /* 255 - q1 */ \ - stage1 = vec_avg(p1, q1minus); /* (p1 - q1 + 256)>>1 */ \ - stage2 = vec_sr(stage1, vec_splat_u8(1)); /* (p1 - q1 + 256)>>2 = 64 + (p1 - q1) >> 2 */ \ - p0minus = vec_nor(p0, p0); /* 255 - p0 */ \ - stage1 = vec_avg(q0, p0minus); /* (q0 - p0 + 256)>>1 */ \ - pq0bit = vec_and(pq0bit, vec_splat_u8(1)); \ - stage2 = vec_avg(stage2, pq0bit); /* 32 + ((q0 - p0)&1 + (p1 - q1) >> 2 + 1) >> 1 */ \ - stage2 = vec_adds(stage2, stage1); /* 160 + ((p0 - q0) + (p1 - q1) >> 2 + 1) >> 1 */ \ - vec160 = vec_ld(0, &A0v); \ - deltaneg = vec_subs(vec160, stage2); /* -d */ \ - delta = vec_subs(stage2, vec160); /* d */ \ - deltaneg = vec_min(tc0masked, deltaneg); \ - delta = vec_min(tc0masked, delta); \ - p0 = vec_subs(p0, deltaneg); \ - q0 = vec_subs(q0, delta); \ - p0 = vec_adds(p0, delta); \ - q0 = vec_adds(q0, deltaneg); \ -} - -#define h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0) { \ - DECLARE_ALIGNED(16, unsigned char, temp)[16]; \ - register vec_u8 alphavec; \ - register vec_u8 betavec; \ - register vec_u8 mask; \ - register vec_u8 p1mask; \ - register vec_u8 q1mask; \ - register vector signed char tc0vec; \ - register vec_u8 finaltc0; \ - register vec_u8 tc0masked; \ - register vec_u8 newp1; \ - register vec_u8 newq1; \ - \ - temp[0] = alpha; \ - temp[1] = beta; \ - alphavec = vec_ld(0, temp); \ - betavec = vec_splat(alphavec, 0x1); \ - alphavec = vec_splat(alphavec, 0x0); \ - mask = h264_deblock_mask(p0, p1, q0, q1, alphavec, betavec); /*if in block */ \ - \ - AV_COPY32(temp, tc0); \ - tc0vec = vec_ld(0, (signed char*)temp); \ - tc0vec = vec_mergeh(tc0vec, tc0vec); \ - tc0vec = vec_mergeh(tc0vec, tc0vec); \ - mask = vec_and(mask, vec_cmpgt(tc0vec, vec_splat_s8(-1))); /* if tc0[i] >= 0 */ \ - finaltc0 = vec_and((vec_u8)tc0vec, mask); /* tc = tc0 */ \ - \ - p1mask = diff_lt_altivec(p2, p0, betavec); \ - p1mask = vec_and(p1mask, mask); /* if ( |p2 - p0| < beta) */ \ - tc0masked = vec_and(p1mask, (vec_u8)tc0vec); \ - finaltc0 = vec_sub(finaltc0, p1mask); /* tc++ */ \ - newp1 = h264_deblock_q1(p0, p1, p2, q0, tc0masked); \ - /*end if*/ \ - \ - q1mask = diff_lt_altivec(q2, q0, betavec); \ - q1mask = vec_and(q1mask, mask); /* if ( |q2 - q0| < beta ) */\ - tc0masked = vec_and(q1mask, (vec_u8)tc0vec); \ - finaltc0 = vec_sub(finaltc0, q1mask); /* tc++ */ \ - newq1 = h264_deblock_q1(p0, q1, q2, q0, tc0masked); \ - /*end if*/ \ - \ - h264_deblock_p0_q0(p0, p1, q0, q1, finaltc0); \ - p1 = newp1; \ - q1 = newq1; \ -} - -static void h264_v_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) { - - if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) >= 0) { - register vec_u8 p2 = vec_ld(-3*stride, pix); - register vec_u8 p1 = vec_ld(-2*stride, pix); - register vec_u8 p0 = vec_ld(-1*stride, pix); - register vec_u8 q0 = vec_ld(0, pix); - register vec_u8 q1 = vec_ld(stride, pix); - register vec_u8 q2 = vec_ld(2*stride, pix); - h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0); - vec_st(p1, -2*stride, pix); - vec_st(p0, -1*stride, pix); - vec_st(q0, 0, pix); - vec_st(q1, stride, pix); - } -} - -static void h264_h_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) { - - register vec_u8 line0, line1, line2, line3, line4, line5; - if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) < 0) - return; - readAndTranspose16x6(pix-3, stride, line0, line1, line2, line3, line4, line5); - h264_loop_filter_luma_altivec(line0, line1, line2, line3, line4, line5, alpha, beta, tc0); - transpose4x16(line1, line2, line3, line4); - write16x4(pix-2, stride, line1, line2, line3, line4); -} - -static av_always_inline -void weight_h264_W_altivec(uint8_t *block, int stride, int height, - int log2_denom, int weight, int offset, int w) -{ - int y, aligned; - vec_u8 vblock; - vec_s16 vtemp, vweight, voffset, v0, v1; - vec_u16 vlog2_denom; - DECLARE_ALIGNED(16, int32_t, temp)[4]; - LOAD_ZERO; - - offset <<= log2_denom; - if(log2_denom) offset += 1<<(log2_denom-1); - temp[0] = log2_denom; - temp[1] = weight; - temp[2] = offset; - - vtemp = (vec_s16)vec_ld(0, temp); - vlog2_denom = (vec_u16)vec_splat(vtemp, 1); - vweight = vec_splat(vtemp, 3); - voffset = vec_splat(vtemp, 5); - aligned = !((unsigned long)block & 0xf); - - for (y = 0; y < height; y++) { - vblock = vec_ld(0, block); - - v0 = (vec_s16)vec_mergeh(zero_u8v, vblock); - v1 = (vec_s16)vec_mergel(zero_u8v, vblock); - - if (w == 16 || aligned) { - v0 = vec_mladd(v0, vweight, zero_s16v); - v0 = vec_adds(v0, voffset); - v0 = vec_sra(v0, vlog2_denom); - } - if (w == 16 || !aligned) { - v1 = vec_mladd(v1, vweight, zero_s16v); - v1 = vec_adds(v1, voffset); - v1 = vec_sra(v1, vlog2_denom); - } - vblock = vec_packsu(v0, v1); - vec_st(vblock, 0, block); - - block += stride; - } -} - -static av_always_inline -void biweight_h264_W_altivec(uint8_t *dst, uint8_t *src, int stride, int height, - int log2_denom, int weightd, int weights, int offset, int w) -{ - int y, dst_aligned, src_aligned; - vec_u8 vsrc, vdst; - vec_s16 vtemp, vweights, vweightd, voffset, v0, v1, v2, v3; - vec_u16 vlog2_denom; - DECLARE_ALIGNED(16, int32_t, temp)[4]; - LOAD_ZERO; - - offset = ((offset + 1) | 1) << log2_denom; - temp[0] = log2_denom+1; - temp[1] = weights; - temp[2] = weightd; - temp[3] = offset; - - vtemp = (vec_s16)vec_ld(0, temp); - vlog2_denom = (vec_u16)vec_splat(vtemp, 1); - vweights = vec_splat(vtemp, 3); - vweightd = vec_splat(vtemp, 5); - voffset = vec_splat(vtemp, 7); - dst_aligned = !((unsigned long)dst & 0xf); - src_aligned = !((unsigned long)src & 0xf); - - for (y = 0; y < height; y++) { - vdst = vec_ld(0, dst); - vsrc = vec_ld(0, src); - - v0 = (vec_s16)vec_mergeh(zero_u8v, vdst); - v1 = (vec_s16)vec_mergel(zero_u8v, vdst); - v2 = (vec_s16)vec_mergeh(zero_u8v, vsrc); - v3 = (vec_s16)vec_mergel(zero_u8v, vsrc); - - if (w == 8) { - if (src_aligned) - v3 = v2; - else - v2 = v3; - } - - if (w == 16 || dst_aligned) { - v0 = vec_mladd(v0, vweightd, zero_s16v); - v2 = vec_mladd(v2, vweights, zero_s16v); - - v0 = vec_adds(v0, voffset); - v0 = vec_adds(v0, v2); - v0 = vec_sra(v0, vlog2_denom); - } - if (w == 16 || !dst_aligned) { - v1 = vec_mladd(v1, vweightd, zero_s16v); - v3 = vec_mladd(v3, vweights, zero_s16v); - - v1 = vec_adds(v1, voffset); - v1 = vec_adds(v1, v3); - v1 = vec_sra(v1, vlog2_denom); - } - vdst = vec_packsu(v0, v1); - vec_st(vdst, 0, dst); - - dst += stride; - src += stride; - } -} - -#define H264_WEIGHT(W) \ -static void ff_weight_h264_pixels ## W ## _altivec(uint8_t *block, int stride, int height, \ - int log2_denom, int weight, int offset){ \ - weight_h264_W_altivec(block, stride, height, log2_denom, weight, offset, W); \ -}\ -static void ff_biweight_h264_pixels ## W ## _altivec(uint8_t *dst, uint8_t *src, int stride, int height, \ - int log2_denom, int weightd, int weights, int offset){ \ - biweight_h264_W_altivec(dst, src, stride, height, log2_denom, weightd, weights, offset, W); \ -} - -H264_WEIGHT(16) -H264_WEIGHT( 8) - -av_cold void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth, - const int chroma_format_idc) -{ - if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) { - if (bit_depth == 8) { - c->h264_idct_add = ff_h264_idct_add_altivec; - if (chroma_format_idc == 1) - c->h264_idct_add8 = ff_h264_idct_add8_altivec; - c->h264_idct_add16 = ff_h264_idct_add16_altivec; - c->h264_idct_add16intra = ff_h264_idct_add16intra_altivec; - c->h264_idct_dc_add= h264_idct_dc_add_altivec; - c->h264_idct8_dc_add = ff_h264_idct8_dc_add_altivec; - c->h264_idct8_add = ff_h264_idct8_add_altivec; - c->h264_idct8_add4 = ff_h264_idct8_add4_altivec; - c->h264_v_loop_filter_luma= h264_v_loop_filter_luma_altivec; - c->h264_h_loop_filter_luma= h264_h_loop_filter_luma_altivec; - - c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels16_altivec; - c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels8_altivec; - c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels16_altivec; - c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels8_altivec; - } - } -} |