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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * MMX-optimized avg/put pixel routines |
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| 3 | * |
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| 4 | * Copyright (c) 2000, 2001 Fabrice Bellard |
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| 5 | * Copyright (c) 2002-2004 Michael Niedermayer |
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| 6 | * |
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| 7 | * This file is part of FFmpeg. |
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| 8 | * |
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| 9 | * FFmpeg is free software; you can redistribute it and/or |
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| 10 | * modify it under the terms of the GNU Lesser General Public |
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| 11 | * License as published by the Free Software Foundation; either |
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| 12 | * version 2.1 of the License, or (at your option) any later version. |
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| 13 | * |
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| 14 | * FFmpeg is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * Lesser General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU Lesser General Public |
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| 20 | * License along with FFmpeg; if not, write to the Free Software |
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| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |||
| 24 | #include |
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| 25 | #include |
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| 26 | |||
| 27 | #include "config.h" |
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| 28 | #include "dsputil_x86.h" |
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| 29 | |||
| 30 | #if HAVE_MMX_INLINE |
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| 31 | |||
| 32 | // in case more speed is needed - unrolling would certainly help |
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| 33 | void ff_avg_pixels8_mmx(uint8_t *block, const uint8_t *pixels, |
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| 34 | ptrdiff_t line_size, int h) |
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| 35 | { |
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| 36 | MOVQ_BFE(mm6); |
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| 37 | JUMPALIGN(); |
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| 38 | do { |
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| 39 | __asm__ volatile( |
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| 40 | "movq %0, %%mm0 \n\t" |
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| 41 | "movq %1, %%mm1 \n\t" |
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| 42 | PAVGB_MMX(%%mm0, %%mm1, %%mm2, %%mm6) |
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| 43 | "movq %%mm2, %0 \n\t" |
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| 44 | :"+m"(*block) |
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| 45 | :"m"(*pixels) |
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| 46 | :"memory"); |
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| 47 | pixels += line_size; |
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| 48 | block += line_size; |
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| 49 | } |
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| 50 | while (--h); |
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| 51 | } |
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| 52 | |||
| 53 | void ff_avg_pixels16_mmx(uint8_t *block, const uint8_t *pixels, |
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| 54 | ptrdiff_t line_size, int h) |
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| 55 | { |
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| 56 | MOVQ_BFE(mm6); |
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| 57 | JUMPALIGN(); |
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| 58 | do { |
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| 59 | __asm__ volatile( |
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| 60 | "movq %0, %%mm0 \n\t" |
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| 61 | "movq %1, %%mm1 \n\t" |
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| 62 | PAVGB_MMX(%%mm0, %%mm1, %%mm2, %%mm6) |
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| 63 | "movq %%mm2, %0 \n\t" |
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| 64 | "movq 8%0, %%mm0 \n\t" |
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| 65 | "movq 8%1, %%mm1 \n\t" |
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| 66 | PAVGB_MMX(%%mm0, %%mm1, %%mm2, %%mm6) |
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| 67 | "movq %%mm2, 8%0 \n\t" |
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| 68 | :"+m"(*block) |
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| 69 | :"m"(*pixels) |
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| 70 | :"memory"); |
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| 71 | pixels += line_size; |
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| 72 | block += line_size; |
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| 73 | } |
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| 74 | while (--h); |
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| 75 | } |
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| 76 | |||
| 77 | void ff_put_pixels8_mmx(uint8_t *block, const uint8_t *pixels, |
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| 78 | ptrdiff_t line_size, int h) |
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| 79 | { |
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| 80 | __asm__ volatile ( |
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| 81 | "lea (%3, %3), %%"REG_a" \n\t" |
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| 82 | ".p2align 3 \n\t" |
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| 83 | "1: \n\t" |
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| 84 | "movq (%1 ), %%mm0 \n\t" |
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| 85 | "movq (%1, %3), %%mm1 \n\t" |
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| 86 | "movq %%mm0, (%2) \n\t" |
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| 87 | "movq %%mm1, (%2, %3) \n\t" |
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| 88 | "add %%"REG_a", %1 \n\t" |
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| 89 | "add %%"REG_a", %2 \n\t" |
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| 90 | "movq (%1 ), %%mm0 \n\t" |
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| 91 | "movq (%1, %3), %%mm1 \n\t" |
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| 92 | "movq %%mm0, (%2) \n\t" |
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| 93 | "movq %%mm1, (%2, %3) \n\t" |
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| 94 | "add %%"REG_a", %1 \n\t" |
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| 95 | "add %%"REG_a", %2 \n\t" |
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| 96 | "subl $4, %0 \n\t" |
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| 97 | "jnz 1b \n\t" |
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| 98 | : "+g"(h), "+r"(pixels), "+r"(block) |
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| 99 | : "r"((x86_reg)line_size) |
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| 100 | : "%"REG_a, "memory" |
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| 101 | ); |
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| 102 | } |
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| 103 | |||
| 104 | void ff_put_pixels16_mmx(uint8_t *block, const uint8_t *pixels, |
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| 105 | ptrdiff_t line_size, int h) |
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| 106 | { |
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| 107 | __asm__ volatile ( |
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| 108 | "lea (%3, %3), %%"REG_a" \n\t" |
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| 109 | ".p2align 3 \n\t" |
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| 110 | "1: \n\t" |
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| 111 | "movq (%1 ), %%mm0 \n\t" |
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| 112 | "movq 8(%1 ), %%mm4 \n\t" |
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| 113 | "movq (%1, %3), %%mm1 \n\t" |
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| 114 | "movq 8(%1, %3), %%mm5 \n\t" |
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| 115 | "movq %%mm0, (%2) \n\t" |
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| 116 | "movq %%mm4, 8(%2) \n\t" |
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| 117 | "movq %%mm1, (%2, %3) \n\t" |
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| 118 | "movq %%mm5, 8(%2, %3) \n\t" |
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| 119 | "add %%"REG_a", %1 \n\t" |
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| 120 | "add %%"REG_a", %2 \n\t" |
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| 121 | "movq (%1 ), %%mm0 \n\t" |
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| 122 | "movq 8(%1 ), %%mm4 \n\t" |
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| 123 | "movq (%1, %3), %%mm1 \n\t" |
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| 124 | "movq 8(%1, %3), %%mm5 \n\t" |
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| 125 | "movq %%mm0, (%2) \n\t" |
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| 126 | "movq %%mm4, 8(%2) \n\t" |
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| 127 | "movq %%mm1, (%2, %3) \n\t" |
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| 128 | "movq %%mm5, 8(%2, %3) \n\t" |
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| 129 | "add %%"REG_a", %1 \n\t" |
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| 130 | "add %%"REG_a", %2 \n\t" |
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| 131 | "subl $4, %0 \n\t" |
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| 132 | "jnz 1b \n\t" |
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| 133 | : "+g"(h), "+r"(pixels), "+r"(block) |
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| 134 | : "r"((x86_reg)line_size) |
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| 135 | : "%"REG_a, "memory" |
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| 136 | ); |
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| 137 | } |
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| 138 | |||
| 139 | #endif /* HAVE_MMX_INLINE */ |