repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Alpha optimized IDCT-related routines | |
| 3 | * Copyright (c) 2002 Falk Hueffner <falk@debian.org> | |
| 4 | * | |
| 5 | * This file is part of FFmpeg. | |
| 6 | * | |
| 7 | * FFmpeg is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU Lesser General Public | |
| 9 | * License as published by the Free Software Foundation; either | |
| 10 | * version 2.1 of the License, or (at your option) any later version. | |
| 11 | * | |
| 12 | * FFmpeg is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * Lesser General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU Lesser General Public | |
| 18 | * License along with FFmpeg; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 20 | */ | |
| 21 | ||
| 22 | /* | |
| 23 | * These functions are scheduled for pca56. They should work | |
| 24 | * reasonably on ev6, though. | |
| 25 | */ | |
| 26 | ||
| 27 | #include "regdef.h" | |
| 28 | ||
| 29 | .set noat | |
| 30 | .set noreorder | |
| 31 | .arch pca56 | |
| 32 | .text | |
| 33 | ||
| 34 | /************************************************************************ | |
| 35 | * void put_pixels_clamped_mvi_asm(const int16_t *block, uint8_t *pixels, | |
| 36 | * int line_size) | |
| 37 | */ | |
| 38 | .align 6 | |
| 39 | .globl put_pixels_clamped_mvi_asm | |
| 40 | .ent put_pixels_clamped_mvi_asm | |
| 41 | put_pixels_clamped_mvi_asm: | |
| 42 | .frame sp, 0, ra | |
| 43 | .prologue 0 | |
| 44 | ||
| 45 | lda t8, -1 | |
| 46 | lda t9, 8 # loop counter | |
| 47 | zap t8, 0xaa, t8 # 00ff00ff00ff00ff | |
| 48 | ||
| 49 | .align 4 | |
| 50 | 1: ldq t0, 0(a0) | |
| 51 | ldq t1, 8(a0) | |
| 52 | ldq t2, 16(a0) | |
| 53 | ldq t3, 24(a0) | |
| 54 | ||
| 55 | maxsw4 t0, zero, t0 | |
| 56 | subq t9, 2, t9 | |
| 57 | maxsw4 t1, zero, t1 | |
| 58 | lda a0, 32(a0) | |
| 59 | ||
| 60 | maxsw4 t2, zero, t2 | |
| 61 | addq a1, a2, ta | |
| 62 | maxsw4 t3, zero, t3 | |
| 63 | minsw4 t0, t8, t0 | |
| 64 | ||
| 65 | minsw4 t1, t8, t1 | |
| 66 | minsw4 t2, t8, t2 | |
| 67 | minsw4 t3, t8, t3 | |
| 68 | pkwb t0, t0 | |
| 69 | ||
| 70 | pkwb t1, t1 | |
| 71 | pkwb t2, t2 | |
| 72 | pkwb t3, t3 | |
| 73 | stl t0, 0(a1) | |
| 74 | ||
| 75 | stl t1, 4(a1) | |
| 76 | addq ta, a2, a1 | |
| 77 | stl t2, 0(ta) | |
| 78 | stl t3, 4(ta) | |
| 79 | ||
| 80 | bne t9, 1b | |
| 81 | ret | |
| 82 | .end put_pixels_clamped_mvi_asm | |
| 83 | ||
| 84 | /************************************************************************ | |
| 85 | * void add_pixels_clamped_mvi_asm(const int16_t *block, uint8_t *pixels, | |
| 86 | * int line_size) | |
| 87 | */ | |
| 88 | .align 6 | |
| 89 | .globl add_pixels_clamped_mvi_asm | |
| 90 | .ent add_pixels_clamped_mvi_asm | |
| 91 | add_pixels_clamped_mvi_asm: | |
| 92 | .frame sp, 0, ra | |
| 93 | .prologue 0 | |
| 94 | ||
| 95 | lda t1, -1 | |
| 96 | lda th, 8 | |
| 97 | zap t1, 0x33, tg | |
| 98 | nop | |
| 99 | ||
| 100 | srl tg, 1, t0 | |
| 101 | xor tg, t0, tg # 0x8000800080008000 | |
| 102 | zap t1, 0xaa, tf # 0x00ff00ff00ff00ff | |
| 103 | ||
| 104 | .align 4 | |
| 105 | 1: ldl t1, 0(a1) # pix0 (try to hit cache line soon) | |
| 106 | ldl t4, 4(a1) # pix1 | |
| 107 | addq a1, a2, te # pixels += line_size | |
| 108 | ldq t0, 0(a0) # shorts0 | |
| 109 | ||
| 110 | ldl t7, 0(te) # pix2 (try to hit cache line soon) | |
| 111 | ldl ta, 4(te) # pix3 | |
| 112 | ldq t3, 8(a0) # shorts1 | |
| 113 | ldq t6, 16(a0) # shorts2 | |
| 114 | ||
| 115 | ldq t9, 24(a0) # shorts3 | |
| 116 | unpkbw t1, t1 # 0 0 (quarter/op no.) | |
| 117 | and t0, tg, t2 # 0 1 | |
| 118 | unpkbw t4, t4 # 1 0 | |
| 119 | ||
| 120 | bic t0, tg, t0 # 0 2 | |
| 121 | unpkbw t7, t7 # 2 0 | |
| 122 | and t3, tg, t5 # 1 1 | |
| 123 | addq t0, t1, t0 # 0 3 | |
| 124 | ||
| 125 | xor t0, t2, t0 # 0 4 | |
| 126 | unpkbw ta, ta # 3 0 | |
| 127 | and t6, tg, t8 # 2 1 | |
| 128 | maxsw4 t0, zero, t0 # 0 5 | |
| 129 | ||
| 130 | bic t3, tg, t3 # 1 2 | |
| 131 | bic t6, tg, t6 # 2 2 | |
| 132 | minsw4 t0, tf, t0 # 0 6 | |
| 133 | addq t3, t4, t3 # 1 3 | |
| 134 | ||
| 135 | pkwb t0, t0 # 0 7 | |
| 136 | xor t3, t5, t3 # 1 4 | |
| 137 | maxsw4 t3, zero, t3 # 1 5 | |
| 138 | addq t6, t7, t6 # 2 3 | |
| 139 | ||
| 140 | xor t6, t8, t6 # 2 4 | |
| 141 | and t9, tg, tb # 3 1 | |
| 142 | minsw4 t3, tf, t3 # 1 6 | |
| 143 | bic t9, tg, t9 # 3 2 | |
| 144 | ||
| 145 | maxsw4 t6, zero, t6 # 2 5 | |
| 146 | addq t9, ta, t9 # 3 3 | |
| 147 | stl t0, 0(a1) # 0 8 | |
| 148 | minsw4 t6, tf, t6 # 2 6 | |
| 149 | ||
| 150 | xor t9, tb, t9 # 3 4 | |
| 151 | maxsw4 t9, zero, t9 # 3 5 | |
| 152 | lda a0, 32(a0) # block += 16; | |
| 153 | pkwb t3, t3 # 1 7 | |
| 154 | ||
| 155 | minsw4 t9, tf, t9 # 3 6 | |
| 156 | subq th, 2, th | |
| 157 | pkwb t6, t6 # 2 7 | |
| 158 | pkwb t9, t9 # 3 7 | |
| 159 | ||
| 160 | stl t3, 4(a1) # 1 8 | |
| 161 | addq te, a2, a1 # pixels += line_size | |
| 162 | stl t6, 0(te) # 2 8 | |
| 163 | stl t9, 4(te) # 3 8 | |
| 164 | ||
| 165 | bne th, 1b | |
| 166 | ret | |
| 167 | .end add_pixels_clamped_mvi_asm |