| 1 | /*
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| 2 | * iWMMXt optimized DSP utils
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| 3 | * Copyright (c) 2004 AGAWA Koji
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| 4 | *
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| 5 | * This library is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU Lesser General Public
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| 7 | * License as published by the Free Software Foundation; either
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| 8 | * version 2 of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This library is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 13 | * Lesser General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU Lesser General Public
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| 16 | * License along with this library; if not, write to the Free Software
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| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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| 18 | */
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| 19 |
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| 20 | #include "../dsputil.h"
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| 21 |
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| 22 | #define DEF(x, y) x ## _no_rnd_ ## y ##_iwmmxt
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| 23 | #define SET_RND(regd) __asm__ __volatile__ ("mov r12, #1 \n\t tbcsth " #regd ", r12":::"r12");
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| 24 | #define WAVG2B "wavg2b"
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| 25 | #include "dsputil_iwmmxt_rnd.h"
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| 26 | #undef DEF
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| 27 | #undef SET_RND
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| 28 | #undef WAVG2B
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| 29 |
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| 30 | #define DEF(x, y) x ## _ ## y ##_iwmmxt
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| 31 | #define SET_RND(regd) __asm__ __volatile__ ("mov r12, #2 \n\t tbcsth " #regd ", r12":::"r12");
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| 32 | #define WAVG2B "wavg2br"
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| 33 | #include "dsputil_iwmmxt_rnd.h"
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| 34 | #undef DEF
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| 35 | #undef SET_RND
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| 36 | #undef WAVG2BR
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| 37 |
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| 38 | // need scheduling
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| 39 | #define OP(AVG) \
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| 40 | asm volatile ( \
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| 41 | /* alignment */ \
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| 42 | "and r12, %[pixels], #7 \n\t" \
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| 43 | "bic %[pixels], %[pixels], #7 \n\t" \
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| 44 | "tmcr wcgr1, r12 \n\t" \
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| 45 | \
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| 46 | "wldrd wr0, [%[pixels]] \n\t" \
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| 47 | "wldrd wr1, [%[pixels], #8] \n\t" \
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| 48 | "add %[pixels], %[pixels], %[line_size] \n\t" \
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| 49 | "walignr1 wr4, wr0, wr1 \n\t" \
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| 50 | \
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| 51 | "1: \n\t" \
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| 52 | \
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| 53 | "wldrd wr2, [%[pixels]] \n\t" \
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| 54 | "wldrd wr3, [%[pixels], #8] \n\t" \
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| 55 | "add %[pixels], %[pixels], %[line_size] \n\t" \
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| 56 | "pld [%[pixels]] \n\t" \
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| 57 | "walignr1 wr5, wr2, wr3 \n\t" \
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| 58 | AVG " wr6, wr4, wr5 \n\t" \
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| 59 | "wstrd wr6, [%[block]] \n\t" \
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| 60 | "add %[block], %[block], %[line_size] \n\t" \
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| 61 | \
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| 62 | "wldrd wr0, [%[pixels]] \n\t" \
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| 63 | "wldrd wr1, [%[pixels], #8] \n\t" \
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| 64 | "add %[pixels], %[pixels], %[line_size] \n\t" \
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| 65 | "walignr1 wr4, wr0, wr1 \n\t" \
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| 66 | "pld [%[pixels]] \n\t" \
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| 67 | AVG " wr6, wr4, wr5 \n\t" \
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| 68 | "wstrd wr6, [%[block]] \n\t" \
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| 69 | "add %[block], %[block], %[line_size] \n\t" \
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| 70 | \
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| 71 | "subs %[h], %[h], #2 \n\t" \
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| 72 | "bne 1b \n\t" \
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| 73 | : [block]"+r"(block), [pixels]"+r"(pixels), [h]"+r"(h) \
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| 74 | : [line_size]"r"(line_size) \
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| 75 | : "memory", "r12");
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| 76 | void put_pixels8_y2_iwmmxt(uint8_t *block, const uint8_t *pixels, const int line_size, int h)
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| 77 | {
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| 78 | OP("wavg2br");
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| 79 | }
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| 80 | void put_no_rnd_pixels8_y2_iwmmxt(uint8_t *block, const uint8_t *pixels, const int line_size, int h)
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| 81 | {
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| 82 | OP("wavg2b");
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| 83 | }
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| 84 | #undef OP
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| 85 |
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| 86 | void add_pixels_clamped_iwmmxt(const DCTELEM *block, uint8_t *pixels, int line_size)
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| 87 | {
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| 88 | uint8_t *pixels2 = pixels + line_size;
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| 89 |
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| 90 | __asm__ __volatile__ (
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| 91 | "mov r12, #4 \n\t"
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| 92 | "1: \n\t"
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| 93 | "pld [%[pixels], %[line_size2]] \n\t"
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| 94 | "pld [%[pixels2], %[line_size2]] \n\t"
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| 95 | "wldrd wr4, [%[pixels]] \n\t"
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| 96 | "wldrd wr5, [%[pixels2]] \n\t"
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| 97 | "pld [%[block], #32] \n\t"
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| 98 | "wunpckelub wr6, wr4 \n\t"
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| 99 | "wldrd wr0, [%[block]] \n\t"
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| 100 | "wunpckehub wr7, wr4 \n\t"
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| 101 | "wldrd wr1, [%[block], #8] \n\t"
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| 102 | "wunpckelub wr8, wr5 \n\t"
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| 103 | "wldrd wr2, [%[block], #16] \n\t"
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| 104 | "wunpckehub wr9, wr5 \n\t"
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| 105 | "wldrd wr3, [%[block], #24] \n\t"
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| 106 | "add %[block], %[block], #32 \n\t"
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| 107 | "waddhss wr10, wr0, wr6 \n\t"
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| 108 | "waddhss wr11, wr1, wr7 \n\t"
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| 109 | "waddhss wr12, wr2, wr8 \n\t"
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| 110 | "waddhss wr13, wr3, wr9 \n\t"
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| 111 | "wpackhus wr14, wr10, wr11 \n\t"
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| 112 | "wpackhus wr15, wr12, wr13 \n\t"
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| 113 | "wstrd wr14, [%[pixels]] \n\t"
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| 114 | "add %[pixels], %[pixels], %[line_size2] \n\t"
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| 115 | "subs r12, r12, #1 \n\t"
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| 116 | "wstrd wr15, [%[pixels2]] \n\t"
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| 117 | "add %[pixels2], %[pixels2], %[line_size2] \n\t"
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| 118 | "bne 1b \n\t"
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| 119 | : [block]"+r"(block), [pixels]"+r"(pixels), [pixels2]"+r"(pixels2)
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| 120 | : [line_size2]"r"(line_size << 1)
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| 121 | : "cc", "memory", "r12");
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| 122 | }
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| 123 |
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| 124 | static void nop(uint8_t *block, const uint8_t *pixels, int line_size, int h)
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| 125 | {
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| 126 | return;
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| 127 | }
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| 128 |
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| 129 | int mm_flags; /* multimedia extension flags */
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| 130 |
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| 131 | int mm_support(void)
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| 132 | {
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| 133 | return 0; /* TODO, implement proper detection */
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| 134 | }
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| 135 |
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| 136 | void dsputil_init_iwmmxt(DSPContext* c, AVCodecContext *avctx)
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| 137 | {
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| 138 | mm_flags = mm_support();
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| 139 |
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| 140 | if (avctx->dsp_mask) {
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| 141 | if (avctx->dsp_mask & FF_MM_FORCE)
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| 142 | mm_flags |= (avctx->dsp_mask & 0xffff);
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| 143 | else
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| 144 | mm_flags &= ~(avctx->dsp_mask & 0xffff);
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| 145 | }
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| 146 |
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| 147 | if (!(mm_flags & MM_IWMMXT)) return;
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| 148 |
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| 149 | c->add_pixels_clamped = add_pixels_clamped_iwmmxt;
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| 150 |
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| 151 | c->put_pixels_tab[0][0] = put_pixels16_iwmmxt;
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| 152 | c->put_pixels_tab[0][1] = put_pixels16_x2_iwmmxt;
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| 153 | c->put_pixels_tab[0][2] = put_pixels16_y2_iwmmxt;
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| 154 | c->put_pixels_tab[0][3] = put_pixels16_xy2_iwmmxt;
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| 155 | c->put_no_rnd_pixels_tab[0][0] = put_pixels16_iwmmxt;
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| 156 | c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_iwmmxt;
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| 157 | c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_iwmmxt;
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| 158 | c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_iwmmxt;
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| 159 |
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| 160 | c->put_pixels_tab[1][0] = put_pixels8_iwmmxt;
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| 161 | c->put_pixels_tab[1][1] = put_pixels8_x2_iwmmxt;
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| 162 | c->put_pixels_tab[1][2] = put_pixels8_y2_iwmmxt;
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| 163 | c->put_pixels_tab[1][3] = put_pixels8_xy2_iwmmxt;
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| 164 | c->put_no_rnd_pixels_tab[1][0] = put_pixels8_iwmmxt;
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| 165 | c->put_no_rnd_pixels_tab[1][1] = put_no_rnd_pixels8_x2_iwmmxt;
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| 166 | c->put_no_rnd_pixels_tab[1][2] = put_no_rnd_pixels8_y2_iwmmxt;
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| 167 | c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels8_xy2_iwmmxt;
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| 168 |
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| 169 | c->avg_pixels_tab[0][0] = avg_pixels16_iwmmxt;
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| 170 | c->avg_pixels_tab[0][1] = avg_pixels16_x2_iwmmxt;
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| 171 | c->avg_pixels_tab[0][2] = avg_pixels16_y2_iwmmxt;
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| 172 | c->avg_pixels_tab[0][3] = avg_pixels16_xy2_iwmmxt;
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| 173 | c->avg_no_rnd_pixels_tab[0][0] = avg_pixels16_iwmmxt;
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| 174 | c->avg_no_rnd_pixels_tab[0][1] = avg_no_rnd_pixels16_x2_iwmmxt;
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| 175 | c->avg_no_rnd_pixels_tab[0][2] = avg_no_rnd_pixels16_y2_iwmmxt;
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| 176 | c->avg_no_rnd_pixels_tab[0][3] = avg_no_rnd_pixels16_xy2_iwmmxt;
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| 177 |
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| 178 | c->avg_pixels_tab[1][0] = avg_pixels8_iwmmxt;
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| 179 | c->avg_pixels_tab[1][1] = avg_pixels8_x2_iwmmxt;
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| 180 | c->avg_pixels_tab[1][2] = avg_pixels8_y2_iwmmxt;
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| 181 | c->avg_pixels_tab[1][3] = avg_pixels8_xy2_iwmmxt;
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| 182 | c->avg_no_rnd_pixels_tab[1][0] = avg_no_rnd_pixels8_iwmmxt;
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| 183 | c->avg_no_rnd_pixels_tab[1][1] = avg_no_rnd_pixels8_x2_iwmmxt;
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| 184 | c->avg_no_rnd_pixels_tab[1][2] = avg_no_rnd_pixels8_y2_iwmmxt;
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| 185 | c->avg_no_rnd_pixels_tab[1][3] = avg_no_rnd_pixels8_xy2_iwmmxt;
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| 186 | }
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