diff options
Diffstat (limited to 'ffmpeg1/libswscale/ppc/swscale_altivec.c')
| -rw-r--r-- | ffmpeg1/libswscale/ppc/swscale_altivec.c | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/ffmpeg1/libswscale/ppc/swscale_altivec.c b/ffmpeg1/libswscale/ppc/swscale_altivec.c deleted file mode 100644 index 9ca2868..0000000 --- a/ffmpeg1/libswscale/ppc/swscale_altivec.c +++ /dev/null @@ -1,328 +0,0 @@ -/* - * AltiVec-enhanced yuv2yuvX - * - * Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org> - * based on the equivalent C code in swscale.c - * - * 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 <inttypes.h> - -#include "config.h" -#include "libswscale/swscale.h" -#include "libswscale/swscale_internal.h" -#include "libavutil/attributes.h" -#include "libavutil/cpu.h" -#include "yuv2rgb_altivec.h" - -#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; \ - } while (0) - -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]; - vector signed int vo1, vo2, vo3, vo4; - vector unsigned short vs1, vs2; - vector unsigned char vf; - vector unsigned int altivec_vectorShiftInt19 = - vec_add(vec_splat_u32(10), vec_splat_u32(9)); - - for (i = 0; i < 16; i++) - val[i] = dither[(x + i + offset) & 7] << 12; - - vo1 = vec_ld(0, val); - vo2 = vec_ld(16, val); - vo3 = vec_ld(32, val); - 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]); - - yuv2planeX_8(vo1, vo2, l1, src[j], x, perm, vLumFilter); - yuv2planeX_8(vo3, vo4, l1, src[j], x + 8, perm, vLumFilter); - } - - vo1 = vec_sra(vo1, altivec_vectorShiftInt19); - vo2 = vec_sra(vo2, altivec_vectorShiftInt19); - vo3 = vec_sra(vo3, altivec_vectorShiftInt19); - vo4 = vec_sra(vo4, altivec_vectorShiftInt19); - vs1 = vec_packsu(vo1, vo2); - vs2 = vec_packsu(vo3, vo4); - vf = vec_packsu(vs1, vs2); - 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) -{ - int i, j; - - for (i = x; i < dstW; i++) { - int t = dither[(i + offset) & 7] << 12; - for (j = 0; j < filterSize; j++) - t += src[j][i] * filter[j]; - dest[i] = av_clip_uint8(t >> 19); - } -} - -static void yuv2planeX_altivec(const int16_t *filter, int filterSize, - const int16_t **src, uint8_t *dest, int dstW, - const uint8_t *dither, int offset) -{ - int dst_u = -(uintptr_t)dest & 15; - int i; - - yuv2planeX_u(filter, filterSize, src, dest, dst_u, dither, offset, 0); - - for (i = dst_u; i < dstW - 15; i += 16) - yuv2planeX_16_altivec(filter, filterSize, src, dest + i, dither, - offset, i); - - yuv2planeX_u(filter, filterSize, src, dest, dstW, dither, offset, i); -} - -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]; - - if (filterSize % 4) { - for (i = 0; i < dstW; i++) { - register int j; - register int srcPos = filterPos[i]; - register int val = 0; - for (j = 0; j < filterSize; j++) - val += ((int)src[srcPos + j]) * filter[filterSize * i + j]; - dst[i] = FFMIN(val >> 7, (1 << 15) - 1); - } - } else - switch (filterSize) { - case 4: - 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 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)); - // 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); - - 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 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)); - - src_v = // vec_unpackh sign-extends... - (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); - dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1); - } - break; - - case 16: - 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 signed short src_vA = // vec_unpackh sign-extends... - (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_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); - dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1); - } - break; - - default: - for (i = 0; i < dstW; i++) { - register int j; - 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); - - 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 signed short src_vA = // vec_unpackh sign-extends... - (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 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; - } - - 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); - - 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); - - val_v = vec_msums(src_v, filter_v, val_v); - } - - val_s = vec_sums(val_v, vzero); - - vec_st(val_s, 0, tempo); - dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1); - } - } -} - -av_cold void ff_sws_init_swScale_altivec(SwsContext *c) -{ - enum AVPixelFormat dstFormat = c->dstFormat; - - if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC)) - return; - - 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->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) { - switch (c->dstFormat) { - case AV_PIX_FMT_ABGR: - c->yuv2packedX = ff_yuv2abgr_X_altivec; - break; - case AV_PIX_FMT_BGRA: - c->yuv2packedX = ff_yuv2bgra_X_altivec; - break; - case AV_PIX_FMT_ARGB: - c->yuv2packedX = ff_yuv2argb_X_altivec; - break; - case AV_PIX_FMT_RGBA: - c->yuv2packedX = ff_yuv2rgba_X_altivec; - break; - case AV_PIX_FMT_BGR24: - c->yuv2packedX = ff_yuv2bgr24_X_altivec; - break; - case AV_PIX_FMT_RGB24: - c->yuv2packedX = ff_yuv2rgb24_X_altivec; - break; - } - } -} |