From a2faa401924b7d3c6d21169762f4340a1331ef48 Mon Sep 17 00:00:00 2001 From: Romain Dolbeau Date: Thu, 11 Mar 2004 17:58:11 +0000 Subject: [PATCH] AltiVec support in postproc/ + altivec optimizations for yuv2yuvX patch by (Romain Dolbeau ) Originally committed as revision 12018 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc --- postproc/swscale.c | 32 ++++- postproc/swscale.h | 1 + postproc/swscale_altivec_template.c | 203 ++++++++++++++++++++++++++++ postproc/swscale_template.c | 10 ++ 4 files changed, 244 insertions(+), 2 deletions(-) create mode 100644 postproc/swscale_altivec_template.c diff --git a/postproc/swscale.c b/postproc/swscale.c index e3c16a5094..98cd469370 100644 --- a/postproc/swscale.c +++ b/postproc/swscale.c @@ -673,6 +673,12 @@ static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **l #define COMPILE_C #endif +#ifdef ARCH_POWERPC +#ifdef HAVE_ALTIVEC +#define COMPILE_ALTIVEC +#endif //HAVE_ALTIVEC +#endif //ARCH_POWERPC + #ifdef ARCH_X86 #if (defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT) @@ -696,10 +702,20 @@ static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **l #undef HAVE_MMX #undef HAVE_MMX2 #undef HAVE_3DNOW +#undef HAVE_ALTIVEC #define RENAME(a) a ## _C #include "swscale_template.c" #endif +#ifdef ARCH_POWERPC +#ifdef COMPILE_ALTIVEC +#undef RENAME +#define HAVE_ALTIVEC +#define RENAME(a) a ## _altivec +#include "swscale_template.c" +#endif +#endif //ARCH_POWERPC + #ifdef ARCH_X86 //X86 versions @@ -1309,6 +1325,12 @@ static SwsFunc getSwsFunc(int flags){ return swScale_C; #else +#ifdef ARCH_POWERPC + if(flags & SWS_CPU_CAPS_ALTIVEC) + return swScale_altivec; + else + return swScale_C; +#endif return swScale_C; #endif #else //RUNTIME_CPUDETECT @@ -1318,6 +1340,8 @@ static SwsFunc getSwsFunc(int flags){ return swScale_3DNow; #elif defined (HAVE_MMX) return swScale_MMX; +#elif defined (HAVE_ALTIVEC) + return swScale_altivec; #else return swScale_C; #endif @@ -1720,13 +1744,15 @@ SwsContext *sws_getContext(int srcW, int srcH, int origSrcFormat, int dstW, int #endif #ifndef RUNTIME_CPUDETECT //ensure that the flags match the compiled variant if cpudetect is off - flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW); + flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC); #ifdef HAVE_MMX2 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2; #elif defined (HAVE_3DNOW) flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW; #elif defined (HAVE_MMX) flags |= SWS_CPU_CAPS_MMX; +#elif defined (HAVE_ALTIVEC) + flags |= SWS_CPU_CAPS_ALTIVEC; #endif #endif if(clip_table[512] != 255) globalInit(); @@ -2033,7 +2059,9 @@ SwsContext *sws_getContext(int srcW, int srcH, int origSrcFormat, int dstW, int MSG_INFO("using 3DNOW\n"); else if(flags & SWS_CPU_CAPS_MMX) MSG_INFO("using MMX\n"); - else + else if(flags & SWS_CPU_CAPS_ALTIVEC) + MSG_INFO("using AltiVec\n"); + else MSG_INFO("using C\n"); } diff --git a/postproc/swscale.h b/postproc/swscale.h index 6587816b44..3bcb432430 100644 --- a/postproc/swscale.h +++ b/postproc/swscale.h @@ -60,6 +60,7 @@ extern "C" { #define SWS_CPU_CAPS_MMX 0x80000000 #define SWS_CPU_CAPS_MMX2 0x20000000 #define SWS_CPU_CAPS_3DNOW 0x40000000 +#define SWS_CPU_CAPS_ALTIVEC 0x10000000 #define SWS_MAX_REDUCE_CUTOFF 0.002 diff --git a/postproc/swscale_altivec_template.c b/postproc/swscale_altivec_template.c new file mode 100644 index 0000000000..0f6a3cda34 --- /dev/null +++ b/postproc/swscale_altivec_template.c @@ -0,0 +1,203 @@ +/* + AltiVec-enhanced yuv2yuvX + + Copyright (C) 2004 Romain Dolbeau + based on the equivalent C code in "postproc/swscale.c" + + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +static const vector unsigned int altivec_vectorShiftInt19 = {19, 19, 19, 19}; +static inline void +altivec_packIntArrayToCharArray(int *val, uint8_t* dest, int dstW) { + register int i; + if ((unsigned long)dest % 16) { + /* badly aligned store, we force store alignement */ + /* and will handle load misalignement on val w/ vec_perm */ + for (i = 0 ; (i < dstW) && + (((unsigned long)dest + i) % 16) ; i++) { + int t = val[i] >> 19; + dest[i] = (t < 0) ? 0 : ((t > 255) ? 255 : t); + } + vector unsigned char perm1 = vec_lvsl(i << 2, val); + vector signed int v1 = vec_ld(i << 2, val); + for ( ; i < (dstW - 15); i+=16) { + int offset = i << 2; + vector signed int v2 = vec_ld(offset + 16, val); + vector signed int v3 = vec_ld(offset + 32, val); + vector signed int v4 = vec_ld(offset + 48, val); + vector signed int v5 = vec_ld(offset + 64, val); + vector signed int v12 = vec_perm(v1,v2,perm1); + vector signed int v23 = vec_perm(v2,v3,perm1); + vector signed int v34 = vec_perm(v3,v4,perm1); + vector signed int v45 = vec_perm(v4,v5,perm1); + + vector signed int vA = vec_sra(v12, altivec_vectorShiftInt19); + vector signed int vB = vec_sra(v23, altivec_vectorShiftInt19); + vector signed int vC = vec_sra(v34, altivec_vectorShiftInt19); + vector signed int vD = vec_sra(v45, altivec_vectorShiftInt19); + vector unsigned short vs1 = vec_packsu(vA, vB); + vector unsigned short vs2 = vec_packsu(vC, vD); + vector unsigned char vf = vec_packsu(vs1, vs2); + vec_st(vf, i, dest); + v1 = v5; + } + } else { // dest is properly aligned, great + for (i = 0; i < (dstW - 15); i+=16) { + int offset = i << 2; + vector signed int v1 = vec_ld(offset, val); + vector signed int v2 = vec_ld(offset + 16, val); + vector signed int v3 = vec_ld(offset + 32, val); + vector signed int v4 = vec_ld(offset + 48, val); + vector signed int v5 = vec_sra(v1, altivec_vectorShiftInt19); + vector signed int v6 = vec_sra(v2, altivec_vectorShiftInt19); + vector signed int v7 = vec_sra(v3, altivec_vectorShiftInt19); + vector signed int v8 = vec_sra(v4, altivec_vectorShiftInt19); + vector unsigned short vs1 = vec_packsu(v5, v6); + vector unsigned short vs2 = vec_packsu(v7, v8); + vector unsigned char vf = vec_packsu(vs1, vs2); + vec_st(vf, i, dest); + } + } + for ( ; i < dstW ; i++) { + int t = val[i] >> 19; + dest[i] = (t < 0) ? 0 : ((t > 255) ? 255 : t); + } +} + +static inline void +yuv2yuvX_altivec_real(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize, + int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize, + uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW) +{ + const vector signed int vini = {(1 << 18), (1 << 18), (1 << 18), (1 << 18)}; + register int i, j; + { + int __attribute__ ((aligned (16))) val[dstW]; + + for (i = 0; i < (dstW -7); i+=4) { + vec_st(vini, i << 2, val); + } + for (; i < dstW; i++) { + val[i] = (1 << 18); + } + + for (j = 0; j < lumFilterSize; j++) { + vector signed short vLumFilter = vec_ld(j << 1, lumFilter); + vector unsigned char perm0 = vec_lvsl(j << 1, lumFilter); + vLumFilter = vec_perm(vLumFilter, vLumFilter, perm0); + vLumFilter = vec_splat(vLumFilter, 0); // lumFilter[j] is loaded 8 times in vLumFilter + + vector unsigned char perm = vec_lvsl(0, lumSrc[j]); + vector signed short l1 = vec_ld(0, lumSrc[j]); + + for (i = 0; i < (dstW - 7); i+=8) { + int offset = i << 2; + vector signed short l2 = vec_ld((i << 1) + 16, lumSrc[j]); + + vector signed int v1 = vec_ld(offset, val); + vector signed int v2 = vec_ld(offset + 16, val); + + vector signed short ls = vec_perm(l1, l2, perm); // lumSrc[j][i] ... lumSrc[j][i+7] + + vector signed int i1 = vec_mule(vLumFilter, ls); + vector signed int i2 = vec_mulo(vLumFilter, ls); + + vector signed int vf1 = vec_mergeh(i1, i2); + vector signed int vf2 = vec_mergel(i1, i2); // lumSrc[j][i] * lumFilter[j] ... lumSrc[j][i+7] * lumFilter[j] + + vector signed int vo1 = vec_add(v1, vf1); + vector signed int vo2 = vec_add(v2, vf2); + + vec_st(vo1, offset, val); + vec_st(vo2, offset + 16, val); + + l1 = l2; + } + for ( ; i < dstW; i++) { + val[i] += lumSrc[j][i] * lumFilter[j]; + } + } + altivec_packIntArrayToCharArray(val,dest,dstW); + } + if (uDest != 0) { + int __attribute__ ((aligned (16))) u[chrDstW]; + int __attribute__ ((aligned (16))) v[chrDstW]; + + for (i = 0; i < (chrDstW -7); i+=4) { + vec_st(vini, i << 2, u); + vec_st(vini, i << 2, v); + } + for (; i < chrDstW; i++) { + u[i] = (1 << 18); + v[i] = (1 << 18); + } + + for (j = 0; j < chrFilterSize; j++) { + vector signed short vChrFilter = vec_ld(j << 1, chrFilter); + vector unsigned char perm0 = vec_lvsl(j << 1, chrFilter); + vChrFilter = vec_perm(vChrFilter, vChrFilter, perm0); + vChrFilter = vec_splat(vChrFilter, 0); // chrFilter[j] is loaded 8 times in vChrFilter + + vector unsigned char perm = vec_lvsl(0, chrSrc[j]); + vector signed short l1 = vec_ld(0, chrSrc[j]); + vector signed short l1_V = vec_ld(2048 << 1, chrSrc[j]); + + for (i = 0; i < (chrDstW - 7); i+=8) { + int offset = i << 2; + vector signed short l2 = vec_ld((i << 1) + 16, chrSrc[j]); + vector signed short l2_V = vec_ld(((i + 2048) << 1) + 16, chrSrc[j]); + + vector signed int v1 = vec_ld(offset, u); + vector signed int v2 = vec_ld(offset + 16, u); + vector signed int v1_V = vec_ld(offset, v); + vector signed int v2_V = vec_ld(offset + 16, v); + + vector signed short ls = vec_perm(l1, l2, perm); // chrSrc[j][i] ... chrSrc[j][i+7] + vector signed short ls_V = vec_perm(l1_V, l2_V, perm); // chrSrc[j][i+2048] ... chrSrc[j][i+2055] + + vector signed int i1 = vec_mule(vChrFilter, ls); + vector signed int i2 = vec_mulo(vChrFilter, ls); + vector signed int i1_V = vec_mule(vChrFilter, ls_V); + vector signed int i2_V = vec_mulo(vChrFilter, ls_V); + + vector signed int vf1 = vec_mergeh(i1, i2); + vector signed int vf2 = vec_mergel(i1, i2); // chrSrc[j][i] * chrFilter[j] ... chrSrc[j][i+7] * chrFilter[j] + vector signed int vf1_V = vec_mergeh(i1_V, i2_V); + vector signed int vf2_V = vec_mergel(i1_V, i2_V); // chrSrc[j][i] * chrFilter[j] ... chrSrc[j][i+7] * chrFilter[j] + + vector signed int vo1 = vec_add(v1, vf1); + vector signed int vo2 = vec_add(v2, vf2); + vector signed int vo1_V = vec_add(v1_V, vf1_V); + vector signed int vo2_V = vec_add(v2_V, vf2_V); + + vec_st(vo1, offset, u); + vec_st(vo2, offset + 16, u); + vec_st(vo1_V, offset, v); + vec_st(vo2_V, offset + 16, v); + + l1 = l2; + l1_V = l2_V; + } + for ( ; i < chrDstW; i++) { + u[i] += chrSrc[j][i] * chrFilter[j]; + v[i] += chrSrc[j][i + 2048] * chrFilter[j]; + } + } + altivec_packIntArrayToCharArray(u,uDest,chrDstW); + altivec_packIntArrayToCharArray(v,vDest,chrDstW); + } +} diff --git a/postproc/swscale_template.c b/postproc/swscale_template.c index ebdb6c33d1..6a8117f2fb 100644 --- a/postproc/swscale_template.c +++ b/postproc/swscale_template.c @@ -59,6 +59,10 @@ #define MOVNTQ(a,b) "movq " #a ", " #b " \n\t" #endif +#ifdef HAVE_ALTIVEC +#include "swscale_altivec_template.c" +#endif + #define YSCALEYUV2YV12X(x, offset) \ "xorl %%eax, %%eax \n\t"\ "movq "VROUNDER_OFFSET"(%0), %%mm3\n\t"\ @@ -766,9 +770,15 @@ static inline void RENAME(yuv2yuvX)(SwsContext *c, int16_t *lumFilter, int16_t * : "%eax", "%edx", "%esi" ); #else +#ifdef HAVE_ALTIVEC +yuv2yuvX_altivec_real(lumFilter, lumSrc, lumFilterSize, + chrFilter, chrSrc, chrFilterSize, + dest, uDest, vDest, dstW, chrDstW); +#else //HAVE_ALTIVEC yuv2yuvXinC(lumFilter, lumSrc, lumFilterSize, chrFilter, chrSrc, chrFilterSize, dest, uDest, vDest, dstW, chrDstW); +#endif //!HAVE_ALTIVEC #endif }