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212 lines
9.4 KiB
212 lines
9.4 KiB
/* |
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* Alpha optimized DSP utils |
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* Copyright (c) 2002 Falk Hueffner <falk@debian.org> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavcodec/hpeldsp.h" |
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#include "hpeldsp_alpha.h" |
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#include "asm.h" |
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static inline uint64_t avg2_no_rnd(uint64_t a, uint64_t b) |
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{ |
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return (a & b) + (((a ^ b) & BYTE_VEC(0xfe)) >> 1); |
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} |
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static inline uint64_t avg2(uint64_t a, uint64_t b) |
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{ |
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return (a | b) - (((a ^ b) & BYTE_VEC(0xfe)) >> 1); |
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} |
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#if 0 |
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/* The XY2 routines basically utilize this scheme, but reuse parts in |
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each iteration. */ |
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static inline uint64_t avg4(uint64_t l1, uint64_t l2, uint64_t l3, uint64_t l4) |
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{ |
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uint64_t r1 = ((l1 & ~BYTE_VEC(0x03)) >> 2) |
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+ ((l2 & ~BYTE_VEC(0x03)) >> 2) |
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+ ((l3 & ~BYTE_VEC(0x03)) >> 2) |
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+ ((l4 & ~BYTE_VEC(0x03)) >> 2); |
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uint64_t r2 = (( (l1 & BYTE_VEC(0x03)) |
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+ (l2 & BYTE_VEC(0x03)) |
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+ (l3 & BYTE_VEC(0x03)) |
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+ (l4 & BYTE_VEC(0x03)) |
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+ BYTE_VEC(0x02)) >> 2) & BYTE_VEC(0x03); |
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return r1 + r2; |
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} |
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#endif |
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#define OP(LOAD, STORE) \ |
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do { \ |
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STORE(LOAD(pixels), block); \ |
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pixels += line_size; \ |
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block += line_size; \ |
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} while (--h) |
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#define OP_X2(LOAD, STORE) \ |
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do { \ |
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uint64_t pix1, pix2; \ |
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\ |
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pix1 = LOAD(pixels); \ |
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pix2 = pix1 >> 8 | ((uint64_t) pixels[8] << 56); \ |
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STORE(AVG2(pix1, pix2), block); \ |
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pixels += line_size; \ |
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block += line_size; \ |
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} while (--h) |
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#define OP_Y2(LOAD, STORE) \ |
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do { \ |
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uint64_t pix = LOAD(pixels); \ |
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do { \ |
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uint64_t next_pix; \ |
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\ |
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pixels += line_size; \ |
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next_pix = LOAD(pixels); \ |
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STORE(AVG2(pix, next_pix), block); \ |
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block += line_size; \ |
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pix = next_pix; \ |
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} while (--h); \ |
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} while (0) |
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#define OP_XY2(LOAD, STORE) \ |
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do { \ |
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uint64_t pix1 = LOAD(pixels); \ |
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uint64_t pix2 = pix1 >> 8 | ((uint64_t) pixels[8] << 56); \ |
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uint64_t pix_l = (pix1 & BYTE_VEC(0x03)) \ |
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+ (pix2 & BYTE_VEC(0x03)); \ |
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uint64_t pix_h = ((pix1 & ~BYTE_VEC(0x03)) >> 2) \ |
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+ ((pix2 & ~BYTE_VEC(0x03)) >> 2); \ |
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\ |
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do { \ |
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uint64_t npix1, npix2; \ |
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uint64_t npix_l, npix_h; \ |
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uint64_t avg; \ |
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\ |
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pixels += line_size; \ |
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npix1 = LOAD(pixels); \ |
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npix2 = npix1 >> 8 | ((uint64_t) pixels[8] << 56); \ |
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npix_l = (npix1 & BYTE_VEC(0x03)) \ |
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+ (npix2 & BYTE_VEC(0x03)); \ |
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npix_h = ((npix1 & ~BYTE_VEC(0x03)) >> 2) \ |
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+ ((npix2 & ~BYTE_VEC(0x03)) >> 2); \ |
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avg = (((pix_l + npix_l + AVG4_ROUNDER) >> 2) & BYTE_VEC(0x03)) \ |
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+ pix_h + npix_h; \ |
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STORE(avg, block); \ |
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\ |
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block += line_size; \ |
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pix_l = npix_l; \ |
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pix_h = npix_h; \ |
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} while (--h); \ |
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} while (0) |
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#define MAKE_OP(OPNAME, SUFF, OPKIND, STORE) \ |
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static void OPNAME ## _pixels ## SUFF ## _axp \ |
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(uint8_t *restrict block, const uint8_t *restrict pixels, \ |
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ptrdiff_t line_size, int h) \ |
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{ \ |
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if ((size_t) pixels & 0x7) { \ |
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OPKIND(uldq, STORE); \ |
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} else { \ |
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OPKIND(ldq, STORE); \ |
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} \ |
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} \ |
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\ |
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static void OPNAME ## _pixels16 ## SUFF ## _axp \ |
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(uint8_t *restrict block, const uint8_t *restrict pixels, \ |
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ptrdiff_t line_size, int h) \ |
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{ \ |
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OPNAME ## _pixels ## SUFF ## _axp(block, pixels, line_size, h); \ |
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OPNAME ## _pixels ## SUFF ## _axp(block + 8, pixels + 8, line_size, h); \ |
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} |
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#define PIXOP(OPNAME, STORE) \ |
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MAKE_OP(OPNAME, , OP, STORE) \ |
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MAKE_OP(OPNAME, _x2, OP_X2, STORE) \ |
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MAKE_OP(OPNAME, _y2, OP_Y2, STORE) \ |
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MAKE_OP(OPNAME, _xy2, OP_XY2, STORE) |
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/* Rounding primitives. */ |
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#define AVG2 avg2 |
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#define AVG4 avg4 |
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#define AVG4_ROUNDER BYTE_VEC(0x02) |
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#define STORE(l, b) stq(l, b) |
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PIXOP(put, STORE); |
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#undef STORE |
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#define STORE(l, b) stq(AVG2(l, ldq(b)), b); |
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PIXOP(avg, STORE); |
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/* Not rounding primitives. */ |
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#undef AVG2 |
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#undef AVG4 |
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#undef AVG4_ROUNDER |
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#undef STORE |
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#define AVG2 avg2_no_rnd |
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#define AVG4 avg4_no_rnd |
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#define AVG4_ROUNDER BYTE_VEC(0x01) |
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#define STORE(l, b) stq(l, b) |
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PIXOP(put_no_rnd, STORE); |
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#undef STORE |
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#define STORE(l, b) stq(AVG2(l, ldq(b)), b); |
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PIXOP(avg_no_rnd, STORE); |
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static void put_pixels16_axp_asm(uint8_t *block, const uint8_t *pixels, |
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ptrdiff_t line_size, int h) |
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{ |
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put_pixels_axp_asm(block, pixels, line_size, h); |
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put_pixels_axp_asm(block + 8, pixels + 8, line_size, h); |
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} |
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void ff_hpeldsp_init_alpha(HpelDSPContext* c, int flags) |
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{ |
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c->put_pixels_tab[0][0] = put_pixels16_axp_asm; |
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c->put_pixels_tab[0][1] = put_pixels16_x2_axp; |
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c->put_pixels_tab[0][2] = put_pixels16_y2_axp; |
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c->put_pixels_tab[0][3] = put_pixels16_xy2_axp; |
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c->put_no_rnd_pixels_tab[0][0] = put_pixels16_axp_asm; |
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c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_axp; |
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c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_axp; |
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c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_axp; |
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c->avg_pixels_tab[0][0] = avg_pixels16_axp; |
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c->avg_pixels_tab[0][1] = avg_pixels16_x2_axp; |
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c->avg_pixels_tab[0][2] = avg_pixels16_y2_axp; |
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c->avg_pixels_tab[0][3] = avg_pixels16_xy2_axp; |
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c->avg_no_rnd_pixels_tab[0] = avg_no_rnd_pixels16_axp; |
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c->avg_no_rnd_pixels_tab[1] = avg_no_rnd_pixels16_x2_axp; |
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c->avg_no_rnd_pixels_tab[2] = avg_no_rnd_pixels16_y2_axp; |
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c->avg_no_rnd_pixels_tab[3] = avg_no_rnd_pixels16_xy2_axp; |
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c->put_pixels_tab[1][0] = put_pixels_axp_asm; |
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c->put_pixels_tab[1][1] = put_pixels_x2_axp; |
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c->put_pixels_tab[1][2] = put_pixels_y2_axp; |
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c->put_pixels_tab[1][3] = put_pixels_xy2_axp; |
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c->put_no_rnd_pixels_tab[1][0] = put_pixels_axp_asm; |
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c->put_no_rnd_pixels_tab[1][1] = put_no_rnd_pixels_x2_axp; |
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c->put_no_rnd_pixels_tab[1][2] = put_no_rnd_pixels_y2_axp; |
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c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels_xy2_axp; |
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c->avg_pixels_tab[1][0] = avg_pixels_axp; |
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c->avg_pixels_tab[1][1] = avg_pixels_x2_axp; |
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c->avg_pixels_tab[1][2] = avg_pixels_y2_axp; |
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c->avg_pixels_tab[1][3] = avg_pixels_xy2_axp; |
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}
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