| /* |
| * Alpha optimized DSP utils |
| * Copyright (c) 2002 Falk Hueffner <falk@debian.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 "libavcodec/me_cmp.h" |
| #include "asm.h" |
| |
| int pix_abs16x16_mvi_asm(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h); |
| |
| static inline uint64_t avg2(uint64_t a, uint64_t b) |
| { |
| return (a | b) - (((a ^ b) & BYTE_VEC(0xfe)) >> 1); |
| } |
| |
| static inline uint64_t avg4(uint64_t l1, uint64_t l2, uint64_t l3, uint64_t l4) |
| { |
| uint64_t r1 = ((l1 & ~BYTE_VEC(0x03)) >> 2) |
| + ((l2 & ~BYTE_VEC(0x03)) >> 2) |
| + ((l3 & ~BYTE_VEC(0x03)) >> 2) |
| + ((l4 & ~BYTE_VEC(0x03)) >> 2); |
| uint64_t r2 = (( (l1 & BYTE_VEC(0x03)) |
| + (l2 & BYTE_VEC(0x03)) |
| + (l3 & BYTE_VEC(0x03)) |
| + (l4 & BYTE_VEC(0x03)) |
| + BYTE_VEC(0x02)) >> 2) & BYTE_VEC(0x03); |
| return r1 + r2; |
| } |
| |
| static int pix_abs8x8_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) |
| { |
| int result = 0; |
| |
| if ((size_t) pix2 & 0x7) { |
| /* works only when pix2 is actually unaligned */ |
| do { /* do 8 pixel a time */ |
| uint64_t p1, p2; |
| |
| p1 = ldq(pix1); |
| p2 = uldq(pix2); |
| result += perr(p1, p2); |
| |
| pix1 += line_size; |
| pix2 += line_size; |
| } while (--h); |
| } else { |
| do { |
| uint64_t p1, p2; |
| |
| p1 = ldq(pix1); |
| p2 = ldq(pix2); |
| result += perr(p1, p2); |
| |
| pix1 += line_size; |
| pix2 += line_size; |
| } while (--h); |
| } |
| |
| return result; |
| } |
| |
| #if 0 /* now done in assembly */ |
| int pix_abs16x16_mvi(uint8_t *pix1, uint8_t *pix2, int line_size) |
| { |
| int result = 0; |
| int h = 16; |
| |
| if ((size_t) pix2 & 0x7) { |
| /* works only when pix2 is actually unaligned */ |
| do { /* do 16 pixel a time */ |
| uint64_t p1_l, p1_r, p2_l, p2_r; |
| uint64_t t; |
| |
| p1_l = ldq(pix1); |
| p1_r = ldq(pix1 + 8); |
| t = ldq_u(pix2 + 8); |
| p2_l = extql(ldq_u(pix2), pix2) | extqh(t, pix2); |
| p2_r = extql(t, pix2) | extqh(ldq_u(pix2 + 16), pix2); |
| pix1 += line_size; |
| pix2 += line_size; |
| |
| result += perr(p1_l, p2_l) |
| + perr(p1_r, p2_r); |
| } while (--h); |
| } else { |
| do { |
| uint64_t p1_l, p1_r, p2_l, p2_r; |
| |
| p1_l = ldq(pix1); |
| p1_r = ldq(pix1 + 8); |
| p2_l = ldq(pix2); |
| p2_r = ldq(pix2 + 8); |
| pix1 += line_size; |
| pix2 += line_size; |
| |
| result += perr(p1_l, p2_l) |
| + perr(p1_r, p2_r); |
| } while (--h); |
| } |
| |
| return result; |
| } |
| #endif |
| |
| static int pix_abs16x16_x2_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) |
| { |
| int result = 0; |
| uint64_t disalign = (size_t) pix2 & 0x7; |
| |
| switch (disalign) { |
| case 0: |
| do { |
| uint64_t p1_l, p1_r, p2_l, p2_r; |
| uint64_t l, r; |
| |
| p1_l = ldq(pix1); |
| p1_r = ldq(pix1 + 8); |
| l = ldq(pix2); |
| r = ldq(pix2 + 8); |
| p2_l = avg2(l, (l >> 8) | ((uint64_t) r << 56)); |
| p2_r = avg2(r, (r >> 8) | ((uint64_t) pix2[16] << 56)); |
| pix1 += line_size; |
| pix2 += line_size; |
| |
| result += perr(p1_l, p2_l) |
| + perr(p1_r, p2_r); |
| } while (--h); |
| break; |
| case 7: |
| /* |.......l|lllllllr|rrrrrrr*| |
| This case is special because disalign1 would be 8, which |
| gets treated as 0 by extqh. At least it is a bit faster |
| that way :) */ |
| do { |
| uint64_t p1_l, p1_r, p2_l, p2_r; |
| uint64_t l, m, r; |
| |
| p1_l = ldq(pix1); |
| p1_r = ldq(pix1 + 8); |
| l = ldq_u(pix2); |
| m = ldq_u(pix2 + 8); |
| r = ldq_u(pix2 + 16); |
| p2_l = avg2(extql(l, disalign) | extqh(m, disalign), m); |
| p2_r = avg2(extql(m, disalign) | extqh(r, disalign), r); |
| pix1 += line_size; |
| pix2 += line_size; |
| |
| result += perr(p1_l, p2_l) |
| + perr(p1_r, p2_r); |
| } while (--h); |
| break; |
| default: |
| do { |
| uint64_t disalign1 = disalign + 1; |
| uint64_t p1_l, p1_r, p2_l, p2_r; |
| uint64_t l, m, r; |
| |
| p1_l = ldq(pix1); |
| p1_r = ldq(pix1 + 8); |
| l = ldq_u(pix2); |
| m = ldq_u(pix2 + 8); |
| r = ldq_u(pix2 + 16); |
| p2_l = avg2(extql(l, disalign) | extqh(m, disalign), |
| extql(l, disalign1) | extqh(m, disalign1)); |
| p2_r = avg2(extql(m, disalign) | extqh(r, disalign), |
| extql(m, disalign1) | extqh(r, disalign1)); |
| pix1 += line_size; |
| pix2 += line_size; |
| |
| result += perr(p1_l, p2_l) |
| + perr(p1_r, p2_r); |
| } while (--h); |
| break; |
| } |
| return result; |
| } |
| |
| static int pix_abs16x16_y2_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) |
| { |
| int result = 0; |
| |
| if ((size_t) pix2 & 0x7) { |
| uint64_t t, p2_l, p2_r; |
| t = ldq_u(pix2 + 8); |
| p2_l = extql(ldq_u(pix2), pix2) | extqh(t, pix2); |
| p2_r = extql(t, pix2) | extqh(ldq_u(pix2 + 16), pix2); |
| |
| do { |
| uint64_t p1_l, p1_r, np2_l, np2_r; |
| uint64_t t; |
| |
| p1_l = ldq(pix1); |
| p1_r = ldq(pix1 + 8); |
| pix2 += line_size; |
| t = ldq_u(pix2 + 8); |
| np2_l = extql(ldq_u(pix2), pix2) | extqh(t, pix2); |
| np2_r = extql(t, pix2) | extqh(ldq_u(pix2 + 16), pix2); |
| |
| result += perr(p1_l, avg2(p2_l, np2_l)) |
| + perr(p1_r, avg2(p2_r, np2_r)); |
| |
| pix1 += line_size; |
| p2_l = np2_l; |
| p2_r = np2_r; |
| |
| } while (--h); |
| } else { |
| uint64_t p2_l, p2_r; |
| p2_l = ldq(pix2); |
| p2_r = ldq(pix2 + 8); |
| do { |
| uint64_t p1_l, p1_r, np2_l, np2_r; |
| |
| p1_l = ldq(pix1); |
| p1_r = ldq(pix1 + 8); |
| pix2 += line_size; |
| np2_l = ldq(pix2); |
| np2_r = ldq(pix2 + 8); |
| |
| result += perr(p1_l, avg2(p2_l, np2_l)) |
| + perr(p1_r, avg2(p2_r, np2_r)); |
| |
| pix1 += line_size; |
| p2_l = np2_l; |
| p2_r = np2_r; |
| } while (--h); |
| } |
| return result; |
| } |
| |
| static int pix_abs16x16_xy2_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) |
| { |
| int result = 0; |
| |
| uint64_t p1_l, p1_r; |
| uint64_t p2_l, p2_r, p2_x; |
| |
| p1_l = ldq(pix1); |
| p1_r = ldq(pix1 + 8); |
| |
| if ((size_t) pix2 & 0x7) { /* could be optimized a lot */ |
| p2_l = uldq(pix2); |
| p2_r = uldq(pix2 + 8); |
| p2_x = (uint64_t) pix2[16] << 56; |
| } else { |
| p2_l = ldq(pix2); |
| p2_r = ldq(pix2 + 8); |
| p2_x = ldq(pix2 + 16) << 56; |
| } |
| |
| do { |
| uint64_t np1_l, np1_r; |
| uint64_t np2_l, np2_r, np2_x; |
| |
| pix1 += line_size; |
| pix2 += line_size; |
| |
| np1_l = ldq(pix1); |
| np1_r = ldq(pix1 + 8); |
| |
| if ((size_t) pix2 & 0x7) { /* could be optimized a lot */ |
| np2_l = uldq(pix2); |
| np2_r = uldq(pix2 + 8); |
| np2_x = (uint64_t) pix2[16] << 56; |
| } else { |
| np2_l = ldq(pix2); |
| np2_r = ldq(pix2 + 8); |
| np2_x = ldq(pix2 + 16) << 56; |
| } |
| |
| result += perr(p1_l, |
| avg4( p2_l, ( p2_l >> 8) | ((uint64_t) p2_r << 56), |
| np2_l, (np2_l >> 8) | ((uint64_t) np2_r << 56))) |
| + perr(p1_r, |
| avg4( p2_r, ( p2_r >> 8) | ((uint64_t) p2_x), |
| np2_r, (np2_r >> 8) | ((uint64_t) np2_x))); |
| |
| p1_l = np1_l; |
| p1_r = np1_r; |
| p2_l = np2_l; |
| p2_r = np2_r; |
| p2_x = np2_x; |
| } while (--h); |
| |
| return result; |
| } |
| |
| av_cold void ff_me_cmp_init_alpha(MECmpContext *c, AVCodecContext *avctx) |
| { |
| /* amask clears all bits that correspond to present features. */ |
| if (amask(AMASK_MVI) == 0) { |
| c->sad[0] = pix_abs16x16_mvi_asm; |
| c->sad[1] = pix_abs8x8_mvi; |
| c->pix_abs[0][0] = pix_abs16x16_mvi_asm; |
| c->pix_abs[1][0] = pix_abs8x8_mvi; |
| c->pix_abs[0][1] = pix_abs16x16_x2_mvi; |
| c->pix_abs[0][2] = pix_abs16x16_y2_mvi; |
| c->pix_abs[0][3] = pix_abs16x16_xy2_mvi; |
| } |
| } |