diff options
Diffstat (limited to 'ffmpeg/libavcodec/ppc/vp3dsp_altivec.c')
| -rw-r--r-- | ffmpeg/libavcodec/ppc/vp3dsp_altivec.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/ffmpeg/libavcodec/ppc/vp3dsp_altivec.c b/ffmpeg/libavcodec/ppc/vp3dsp_altivec.c deleted file mode 100644 index 56c2d0b..0000000 --- a/ffmpeg/libavcodec/ppc/vp3dsp_altivec.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Copyright (C) 2009 David Conrad - * - * 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 <string.h> - -#include "config.h" -#include "libavutil/attributes.h" -#include "libavutil/cpu.h" -#include "libavutil/ppc/types_altivec.h" -#include "libavutil/ppc/util_altivec.h" -#include "libavcodec/vp3dsp.h" -#include "dsputil_altivec.h" - -#if HAVE_ALTIVEC - -static const vec_s16 constants = - {0, 64277, 60547, 54491, 46341, 36410, 25080, 12785}; -static const vec_u8 interleave_high = - {0, 1, 16, 17, 4, 5, 20, 21, 8, 9, 24, 25, 12, 13, 28, 29}; - -#define IDCT_START \ - vec_s16 A, B, C, D, Ad, Bd, Cd, Dd, E, F, G, H;\ - vec_s16 Ed, Gd, Add, Bdd, Fd, Hd;\ - vec_s16 eight = vec_splat_s16(8);\ - vec_u16 four = vec_splat_u16(4);\ -\ - vec_s16 C1 = vec_splat(constants, 1);\ - vec_s16 C2 = vec_splat(constants, 2);\ - vec_s16 C3 = vec_splat(constants, 3);\ - vec_s16 C4 = vec_splat(constants, 4);\ - vec_s16 C5 = vec_splat(constants, 5);\ - vec_s16 C6 = vec_splat(constants, 6);\ - vec_s16 C7 = vec_splat(constants, 7);\ -\ - vec_s16 b0 = vec_ld(0x00, block);\ - vec_s16 b1 = vec_ld(0x10, block);\ - vec_s16 b2 = vec_ld(0x20, block);\ - vec_s16 b3 = vec_ld(0x30, block);\ - vec_s16 b4 = vec_ld(0x40, block);\ - vec_s16 b5 = vec_ld(0x50, block);\ - vec_s16 b6 = vec_ld(0x60, block);\ - vec_s16 b7 = vec_ld(0x70, block); - -// these functions do (a*C)>>16 -// things are tricky because a is signed, but C unsigned. -// M15 is used if C fits in 15 bit unsigned (C6,C7) -// M16 is used if C requires 16 bits unsigned -static inline vec_s16 M15(vec_s16 a, vec_s16 C) -{ - return (vec_s16)vec_perm(vec_mule(a,C), vec_mulo(a,C), interleave_high); -} -static inline vec_s16 M16(vec_s16 a, vec_s16 C) -{ - return vec_add(a, M15(a, C)); -} - -#define IDCT_1D(ADD, SHIFT)\ - A = vec_add(M16(b1, C1), M15(b7, C7));\ - B = vec_sub(M15(b1, C7), M16(b7, C1));\ - C = vec_add(M16(b3, C3), M16(b5, C5));\ - D = vec_sub(M16(b5, C3), M16(b3, C5));\ -\ - Ad = M16(vec_sub(A, C), C4);\ - Bd = M16(vec_sub(B, D), C4);\ -\ - Cd = vec_add(A, C);\ - Dd = vec_add(B, D);\ -\ - E = ADD(M16(vec_add(b0, b4), C4));\ - F = ADD(M16(vec_sub(b0, b4), C4));\ -\ - G = vec_add(M16(b2, C2), M15(b6, C6));\ - H = vec_sub(M15(b2, C6), M16(b6, C2));\ -\ - Ed = vec_sub(E, G);\ - Gd = vec_add(E, G);\ -\ - Add = vec_add(F, Ad);\ - Bdd = vec_sub(Bd, H);\ -\ - Fd = vec_sub(F, Ad);\ - Hd = vec_add(Bd, H);\ -\ - b0 = SHIFT(vec_add(Gd, Cd));\ - b7 = SHIFT(vec_sub(Gd, Cd));\ -\ - b1 = SHIFT(vec_add(Add, Hd));\ - b2 = SHIFT(vec_sub(Add, Hd));\ -\ - b3 = SHIFT(vec_add(Ed, Dd));\ - b4 = SHIFT(vec_sub(Ed, Dd));\ -\ - b5 = SHIFT(vec_add(Fd, Bdd));\ - b6 = SHIFT(vec_sub(Fd, Bdd)); - -#define NOP(a) a -#define ADD8(a) vec_add(a, eight) -#define SHIFT4(a) vec_sra(a, four) - -static void vp3_idct_put_altivec(uint8_t *dst, int stride, int16_t block[64]) -{ - vec_u8 t; - IDCT_START - - // pixels are signed; so add 128*16 in addition to the normal 8 - vec_s16 v2048 = vec_sl(vec_splat_s16(1), vec_splat_u16(11)); - eight = vec_add(eight, v2048); - - IDCT_1D(NOP, NOP) - TRANSPOSE8(b0, b1, b2, b3, b4, b5, b6, b7); - IDCT_1D(ADD8, SHIFT4) - -#define PUT(a)\ - t = vec_packsu(a, a);\ - vec_ste((vec_u32)t, 0, (unsigned int *)dst);\ - vec_ste((vec_u32)t, 4, (unsigned int *)dst); - - PUT(b0) dst += stride; - PUT(b1) dst += stride; - PUT(b2) dst += stride; - PUT(b3) dst += stride; - PUT(b4) dst += stride; - PUT(b5) dst += stride; - PUT(b6) dst += stride; - PUT(b7) - memset(block, 0, sizeof(*block) * 64); -} - -static void vp3_idct_add_altivec(uint8_t *dst, int stride, int16_t block[64]) -{ - LOAD_ZERO; - vec_u8 t, vdst; - vec_s16 vdst_16; - vec_u8 vdst_mask = vec_mergeh(vec_splat_u8(-1), vec_lvsl(0, dst)); - - IDCT_START - - IDCT_1D(NOP, NOP) - TRANSPOSE8(b0, b1, b2, b3, b4, b5, b6, b7); - IDCT_1D(ADD8, SHIFT4) - -#define ADD(a)\ - vdst = vec_ld(0, dst);\ - vdst_16 = (vec_s16)vec_perm(vdst, zero_u8v, vdst_mask);\ - vdst_16 = vec_adds(a, vdst_16);\ - t = vec_packsu(vdst_16, vdst_16);\ - vec_ste((vec_u32)t, 0, (unsigned int *)dst);\ - vec_ste((vec_u32)t, 4, (unsigned int *)dst); - - ADD(b0) dst += stride; - ADD(b1) dst += stride; - ADD(b2) dst += stride; - ADD(b3) dst += stride; - ADD(b4) dst += stride; - ADD(b5) dst += stride; - ADD(b6) dst += stride; - ADD(b7) - memset(block, 0, sizeof(*block) * 64); -} - -#endif /* HAVE_ALTIVEC */ - -av_cold void ff_vp3dsp_init_ppc(VP3DSPContext *c, int flags) -{ -#if HAVE_ALTIVEC - if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC)) - return; - - c->idct_put = vp3_idct_put_altivec; - c->idct_add = vp3_idct_add_altivec; -#endif -} |