diff options
Diffstat (limited to 'libswscale/ppc/swscale_altivec.c')
-rw-r--r-- | libswscale/ppc/swscale_altivec.c | 247 |
1 files changed, 143 insertions, 104 deletions
diff --git a/libswscale/ppc/swscale_altivec.c b/libswscale/ppc/swscale_altivec.c index 004b385af2..35a08c4793 100644 --- a/libswscale/ppc/swscale_altivec.c +++ b/libswscale/ppc/swscale_altivec.c @@ -4,20 +4,20 @@ * Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org> * based on the equivalent C code in swscale.c * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -29,28 +29,61 @@ #include "libavutil/attributes.h" #include "libavutil/cpu.h" #include "yuv2rgb_altivec.h" +#include "libavutil/ppc/util_altivec.h" #if HAVE_ALTIVEC #define vzero vec_splat_s32(0) -#define yuv2planeX_8(d1, d2, l1, src, x, perm, filter) do { \ - vector signed short l2 = vec_ld(((x) << 1) + 16, src); \ - vector signed short ls = vec_perm(l1, l2, perm); \ - vector signed int i1 = vec_mule(filter, ls); \ - vector signed int i2 = vec_mulo(filter, ls); \ - vector signed int vf1 = vec_mergeh(i1, i2); \ - vector signed int vf2 = vec_mergel(i1, i2); \ - d1 = vec_add(d1, vf1); \ - d2 = vec_add(d2, vf2); \ - l1 = l2; \ +#if HAVE_BIGENDIAN +#define GET_LS(a,b,c,s) {\ + vector signed short l2 = vec_ld(((b) << 1) + 16, s);\ + ls = vec_perm(a, l2, c);\ + a = l2;\ + } +#else +#define GET_LS(a,b,c,s) {\ + ls = a;\ + a = vec_vsx_ld(((b) << 1) + 16, s);\ + } +#endif + +#define yuv2planeX_8(d1, d2, l1, src, x, perm, filter) do {\ + vector signed short ls;\ + GET_LS(l1, x, perm, src);\ + vector signed int i1 = vec_mule(filter, ls);\ + vector signed int i2 = vec_mulo(filter, ls);\ + vector signed int vf1, vf2;\ + vf1 = vec_mergeh(i1, i2);\ + vf2 = vec_mergel(i1, i2);\ + d1 = vec_add(d1, vf1);\ + d2 = vec_add(d2, vf2);\ } while (0) +#if HAVE_BIGENDIAN +#define LOAD_FILTER(vf,f) {\ + vector unsigned char perm0 = vec_lvsl(joffset, f);\ + vf = vec_ld(joffset, f);\ + vf = vec_perm(vf, vf, perm0);\ +} +#define LOAD_L1(ll1,s,p){\ + p = vec_lvsl(xoffset, s);\ + ll1 = vec_ld(xoffset, s);\ +} +#else +#define LOAD_FILTER(vf,f) {\ + vf = vec_vsx_ld(joffset, f);\ +} +#define LOAD_L1(ll1,s,p){\ + ll1 = vec_vsx_ld(xoffset, s);\ +} +#endif + static void yuv2planeX_16_altivec(const int16_t *filter, int filterSize, const int16_t **src, uint8_t *dest, const uint8_t *dither, int offset, int x) { register int i, j; - DECLARE_ALIGNED(16, int, val)[16]; + LOCAL_ALIGNED(16, int, val, [16]); vector signed int vo1, vo2, vo3, vo4; vector unsigned short vs1, vs2; vector unsigned char vf; @@ -66,14 +99,13 @@ static void yuv2planeX_16_altivec(const int16_t *filter, int filterSize, vo4 = vec_ld(48, val); for (j = 0; j < filterSize; j++) { - vector signed short l1, vLumFilter = vec_ld(j << 1, filter); - vector unsigned char perm, perm0 = vec_lvsl(j << 1, filter); - vLumFilter = vec_perm(vLumFilter, vLumFilter, perm0); - vLumFilter = vec_splat(vLumFilter, 0); // lumFilter[j] is loaded 8 times in vLumFilter - - perm = vec_lvsl(x << 1, src[j]); - l1 = vec_ld(x << 1, src[j]); - + unsigned int joffset=j<<1; + unsigned int xoffset=x<<1; + vector unsigned char perm; + vector signed short l1,vLumFilter; + LOAD_FILTER(vLumFilter,filter); + vLumFilter = vec_splat(vLumFilter, 0); + LOAD_L1(l1,src[j],perm); yuv2planeX_8(vo1, vo2, l1, src[j], x, perm, vLumFilter); yuv2planeX_8(vo3, vo4, l1, src[j], x + 8, perm, vLumFilter); } @@ -85,9 +117,10 @@ static void yuv2planeX_16_altivec(const int16_t *filter, int filterSize, vs1 = vec_packsu(vo1, vo2); vs2 = vec_packsu(vo3, vo4); vf = vec_packsu(vs1, vs2); - vec_st(vf, 0, dest); + VEC_ST(vf, 0, dest); } + static inline void yuv2planeX_u(const int16_t *filter, int filterSize, const int16_t **src, uint8_t *dest, int dstW, const uint8_t *dither, int offset, int x) @@ -118,12 +151,64 @@ static void yuv2planeX_altivec(const int16_t *filter, int filterSize, yuv2planeX_u(filter, filterSize, src, dest, dstW, dither, offset, i); } +#if HAVE_BIGENDIAN +// The 3 above is 2 (filterSize == 4) + 1 (sizeof(short) == 2). + +// The neat trick: We only care for half the elements, +// high or low depending on (i<<3)%16 (it's 0 or 8 here), +// and we're going to use vec_mule, so we choose +// carefully how to "unpack" the elements into the even slots. +#define GET_VF4(a, vf, f) {\ + vf = vec_ld(a<< 3, f);\ + if ((a << 3) % 16)\ + vf = vec_mergel(vf, (vector signed short)vzero);\ + else\ + vf = vec_mergeh(vf, (vector signed short)vzero);\ +} +#define FIRST_LOAD(sv, pos, s, per) {\ + sv = vec_ld(pos, s);\ + per = vec_lvsl(pos, s);\ +} +#define UPDATE_PTR(s0, d0, s1, d1) {\ + d0 = s0;\ + d1 = s1;\ +} +#define LOAD_SRCV(pos, a, s, per, v0, v1, vf) {\ + v1 = vec_ld(pos + a + 16, s);\ + vf = vec_perm(v0, v1, per);\ +} +#define LOAD_SRCV8(pos, a, s, per, v0, v1, vf) {\ + if ((((uintptr_t)s + pos) % 16) > 8) {\ + v1 = vec_ld(pos + a + 16, s);\ + }\ + vf = vec_perm(v0, src_v1, per);\ +} +#define GET_VFD(a, b, f, vf0, vf1, per, vf, off) {\ + vf1 = vec_ld((a * 2 * filterSize) + (b * 2) + 16 + off, f);\ + vf = vec_perm(vf0, vf1, per);\ +} +#else /* else of #if HAVE_BIGENDIAN */ +#define GET_VF4(a, vf, f) {\ + vf = (vector signed short)vec_vsx_ld(a << 3, f);\ + vf = vec_mergeh(vf, (vector signed short)vzero);\ +} +#define FIRST_LOAD(sv, pos, s, per) {} +#define UPDATE_PTR(s0, d0, s1, d1) {} +#define LOAD_SRCV(pos, a, s, per, v0, v1, vf) {\ + vf = vec_vsx_ld(pos + a, s);\ +} +#define LOAD_SRCV8(pos, a, s, per, v0, v1, vf) LOAD_SRCV(pos, a, s, per, v0, v1, vf) +#define GET_VFD(a, b, f, vf0, vf1, per, vf, off) {\ + vf = vec_vsx_ld((a * 2 * filterSize) + (b * 2) + off, f);\ +} +#endif /* end of #if HAVE_BIGENDIAN */ + static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW, const uint8_t *src, const int16_t *filter, const int32_t *filterPos, int filterSize) { register int i; - DECLARE_ALIGNED(16, int, tempo)[4]; + LOCAL_ALIGNED(16, int, tempo, [4]); if (filterSize % 4) { for (i = 0; i < dstW; i++) { @@ -140,57 +225,32 @@ static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW, for (i = 0; i < dstW; i++) { register int srcPos = filterPos[i]; - vector unsigned char src_v0 = vec_ld(srcPos, src); - vector unsigned char src_v1, src_vF; + vector unsigned char src_vF = unaligned_load(srcPos, src); vector signed short src_v, filter_v; vector signed int val_vEven, val_s; - if ((((uintptr_t)src + srcPos) % 16) > 12) { - src_v1 = vec_ld(srcPos + 16, src); - } - src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src)); - src_v = // vec_unpackh sign-extends... - (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); + (vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF)); // now put our elements in the even slots src_v = vec_mergeh(src_v, (vector signed short)vzero); - - filter_v = vec_ld(i << 3, filter); - // The 3 above is 2 (filterSize == 4) + 1 (sizeof(short) == 2). - - // The neat trick: We only care for half the elements, - // high or low depending on (i<<3)%16 (it's 0 or 8 here), - // and we're going to use vec_mule, so we choose - // carefully how to "unpack" the elements into the even slots. - if ((i << 3) % 16) - filter_v = vec_mergel(filter_v, (vector signed short)vzero); - else - filter_v = vec_mergeh(filter_v, (vector signed short)vzero); - + GET_VF4(i, filter_v, filter); val_vEven = vec_mule(src_v, filter_v); val_s = vec_sums(val_vEven, vzero); vec_st(val_s, 0, tempo); dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1); } break; - case 8: for (i = 0; i < dstW; i++) { register int srcPos = filterPos[i]; - - vector unsigned char src_v0 = vec_ld(srcPos, src); - vector unsigned char src_v1, src_vF; + vector unsigned char src_vF, src_v0, src_v1; + vector unsigned char permS; vector signed short src_v, filter_v; vector signed int val_v, val_s; - if ((((uintptr_t)src + srcPos) % 16) > 8) { - src_v1 = vec_ld(srcPos + 16, src); - } - src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src)); - + FIRST_LOAD(src_v0, srcPos, src, permS); + LOAD_SRCV8(srcPos, 0, src, permS, src_v0, src_v1, src_vF); src_v = // vec_unpackh sign-extends... - (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); + (vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF)); filter_v = vec_ld(i << 4, filter); - // the 4 above is 3 (filterSize == 8) + 1 (sizeof(short) == 2) - val_v = vec_msums(src_v, filter_v, (vector signed int)vzero); val_s = vec_sums(val_v, vzero); vec_st(val_s, 0, tempo); @@ -202,85 +262,64 @@ static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW, for (i = 0; i < dstW; i++) { register int srcPos = filterPos[i]; - vector unsigned char src_v0 = vec_ld(srcPos, src); - vector unsigned char src_v1 = vec_ld(srcPos + 16, src); - vector unsigned char src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src)); - + vector unsigned char src_vF = unaligned_load(srcPos, src); vector signed short src_vA = // vec_unpackh sign-extends... - (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); + (vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF)); vector signed short src_vB = // vec_unpackh sign-extends... - (vector signed short)(vec_mergel((vector unsigned char)vzero, src_vF)); - + (vector signed short)(VEC_MERGEL((vector unsigned char)vzero, src_vF)); vector signed short filter_v0 = vec_ld(i << 5, filter); vector signed short filter_v1 = vec_ld((i << 5) + 16, filter); - // the 5 above are 4 (filterSize == 16) + 1 (sizeof(short) == 2) vector signed int val_acc = vec_msums(src_vA, filter_v0, (vector signed int)vzero); vector signed int val_v = vec_msums(src_vB, filter_v1, val_acc); vector signed int val_s = vec_sums(val_v, vzero); - vec_st(val_s, 0, tempo); + VEC_ST(val_s, 0, tempo); dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1); } break; default: for (i = 0; i < dstW; i++) { - register int j; + register int j, offset = i * 2 * filterSize; register int srcPos = filterPos[i]; vector signed int val_s, val_v = (vector signed int)vzero; - vector signed short filter_v0R = vec_ld(i * 2 * filterSize, filter); - vector unsigned char permF = vec_lvsl((i * 2 * filterSize), filter); - - vector unsigned char src_v0 = vec_ld(srcPos, src); - vector unsigned char permS = vec_lvsl(srcPos, src); + vector signed short filter_v0R; + vector unsigned char permF, src_v0, permS; + FIRST_LOAD(filter_v0R, offset, filter, permF); + FIRST_LOAD(src_v0, srcPos, src, permS); for (j = 0; j < filterSize - 15; j += 16) { - vector unsigned char src_v1 = vec_ld(srcPos + j + 16, src); - vector unsigned char src_vF = vec_perm(src_v0, src_v1, permS); - + vector unsigned char src_v1, src_vF; + vector signed short filter_v1R, filter_v2R, filter_v0, filter_v1; + LOAD_SRCV(srcPos, j, src, permS, src_v0, src_v1, src_vF); vector signed short src_vA = // vec_unpackh sign-extends... - (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); + (vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF)); vector signed short src_vB = // vec_unpackh sign-extends... - (vector signed short)(vec_mergel((vector unsigned char)vzero, src_vF)); - - vector signed short filter_v1R = vec_ld((i * 2 * filterSize) + (j * 2) + 16, filter); - vector signed short filter_v2R = vec_ld((i * 2 * filterSize) + (j * 2) + 32, filter); - vector signed short filter_v0 = vec_perm(filter_v0R, filter_v1R, permF); - vector signed short filter_v1 = vec_perm(filter_v1R, filter_v2R, permF); + (vector signed short)(VEC_MERGEL((vector unsigned char)vzero, src_vF)); + GET_VFD(i, j, filter, filter_v0R, filter_v1R, permF, filter_v0, 0); + GET_VFD(i, j, filter, filter_v1R, filter_v2R, permF, filter_v1, 16); vector signed int val_acc = vec_msums(src_vA, filter_v0, val_v); val_v = vec_msums(src_vB, filter_v1, val_acc); - - filter_v0R = filter_v2R; - src_v0 = src_v1; + UPDATE_PTR(filter_v2R, filter_v0R, src_v1, src_v0); } if (j < filterSize - 7) { // loading src_v0 is useless, it's already done above - // vector unsigned char src_v0 = vec_ld(srcPos + j, src); vector unsigned char src_v1, src_vF; vector signed short src_v, filter_v1R, filter_v; - if ((((uintptr_t)src + srcPos) % 16) > 8) { - src_v1 = vec_ld(srcPos + j + 16, src); - } - src_vF = vec_perm(src_v0, src_v1, permS); - + LOAD_SRCV8(srcPos, j, src, permS, src_v0, src_v1, src_vF); src_v = // vec_unpackh sign-extends... - (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); - // loading filter_v0R is useless, it's already done above - // vector signed short filter_v0R = vec_ld((i * 2 * filterSize) + j, filter); - filter_v1R = vec_ld((i * 2 * filterSize) + (j * 2) + 16, filter); - filter_v = vec_perm(filter_v0R, filter_v1R, permF); - + (vector signed short)(VEC_MERGEH((vector unsigned char)vzero, src_vF)); + GET_VFD(i, j, filter, filter_v0R, filter_v1R, permF, filter_v, 0); val_v = vec_msums(src_v, filter_v, val_v); } - val_s = vec_sums(val_v, vzero); - vec_st(val_s, 0, tempo); + VEC_ST(val_s, 0, tempo); dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1); } } @@ -289,24 +328,24 @@ static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW, av_cold void ff_sws_init_swscale_ppc(SwsContext *c) { -#if HAVE_ALTIVEC && HAVE_BIGENDIAN +#if HAVE_ALTIVEC enum AVPixelFormat dstFormat = c->dstFormat; if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC)) return; - if (c->srcBpc == 8 && c->dstBpc <= 10) { + if (c->srcBpc == 8 && c->dstBpc <= 14) { c->hyScale = c->hcScale = hScale_altivec_real; } if (!is16BPS(dstFormat) && !is9_OR_10BPS(dstFormat) && dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 && - !c->alpPixBuf) { + !c->needAlpha) { c->yuv2planeX = yuv2planeX_altivec; } /* The following list of supported dstFormat values should * match what's found in the body of ff_yuv2packedX_altivec() */ - if (!(c->flags & (SWS_BITEXACT | SWS_FULL_CHR_H_INT)) && !c->alpPixBuf) { + if (!(c->flags & (SWS_BITEXACT | SWS_FULL_CHR_H_INT)) && !c->needAlpha) { switch (c->dstFormat) { case AV_PIX_FMT_ABGR: c->yuv2packedX = ff_yuv2abgr_X_altivec; |