repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (C) 2013 Xiaolei Yu <dreifachstein@gmail.com> | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | #include "rgb2yuv_neon_common.S" | |
| 22 | ||
| 23 | /* downsampled R16G16B16 x8 */ | |
| 24 | alias_qw r16x8, q7 | |
| 25 | alias_qw g16x8, q8 | |
| 26 | alias_qw b16x8, q9 | |
| 27 | ||
| 28 | alias n16x16_o, q11 | |
| 29 | alias n16x16_ol, q11_l | |
| 30 | alias n16x16_oh, q11_h | |
| 31 | ||
| 32 | alias y32x16_el, q12 | |
| 33 | alias y32x16_eh, q13 | |
| 34 | alias y32x16_ol, q14 | |
| 35 | alias y32x16_oh, q15 | |
| 36 | ||
| 37 | alias y16x16_e, q12 | |
| 38 | alias y16x16_el, q12_l | |
| 39 | alias y16x16_eh, q12_h | |
| 40 | alias y16x16_o, q13 | |
| 41 | alias y16x16_ol, q13_l | |
| 42 | alias y16x16_oh, q13_h | |
| 43 | ||
| 44 | ||
| 45 | alias y8x16, y16x16_e | |
| 46 | ||
| 47 | ||
| 48 | .macro init src | |
| 49 | // load s32x3x3, narrow to s16x3x3 | |
| 50 | vld3.i32 {q13_l, q14_l, q15_l}, [\src]! | |
| 51 | vld3.i32 {q13_h[0], q14_h[0], q15_h[0]}, [\src] | |
| 52 | ||
| 53 | vmovn.i32 CO_R, q13 | |
| 54 | vmovn.i32 CO_G, q14 | |
| 55 | vmovn.i32 CO_B, q15 | |
| 56 | ||
| 57 | vmov.u8 BIAS_Y, #16 | |
| 58 | vmov.u8 BIAS_U, #128 | |
| 59 | .endm | |
| 60 | ||
| 61 | ||
| 62 | .macro compute_y_16x1_step action, s8x16, coeff | |
| 63 | vmov.u8 n16x16_o, #0 | |
| 64 | vtrn.u8 \s8x16, n16x16_o | |
| 65 | ||
| 66 | \action y32x16_el, \s8x16\()_l, \coeff | |
| 67 | \action y32x16_eh, \s8x16\()_h, \coeff | |
| 68 | \action y32x16_ol, n16x16_ol, \coeff | |
| 69 | \action y32x16_oh, n16x16_oh, \coeff | |
| 70 | .endm | |
| 71 | ||
| 72 | /* | |
| 73 | * in: r8x16, g8x16, b8x16 | |
| 74 | * out: y8x16 | |
| 75 | * clobber: q11-q15, r8x16, g8x16, b8x16 | |
| 76 | */ | |
| 77 | .macro compute_y_16x1 | |
| 78 | compute_y_16x1_step vmull, r8x16, CO_RY | |
| 79 | compute_y_16x1_step vmlal, g8x16, CO_GY | |
| 80 | compute_y_16x1_step vmlal, b8x16, CO_BY | |
| 81 | ||
| 82 | vrshrn.i32 y16x16_el, y32x16_el, #15 | |
| 83 | vrshrn.i32 y16x16_eh, y32x16_eh, #15 | |
| 84 | vrshrn.i32 y16x16_ol, y32x16_ol, #15 | |
| 85 | vrshrn.i32 y16x16_oh, y32x16_oh, #15 | |
| 86 | ||
| 87 | vtrn.8 y16x16_e, y16x16_o | |
| 88 | vadd.u8 y8x16, y8x16, BIAS_Y | |
| 89 | .endm | |
| 90 | ||
| 91 | alias c32x8_l, q14 | |
| 92 | alias c32x8_h, q15 | |
| 93 | ||
| 94 | alias_qw c16x8, q13 | |
| 95 | alias_qw c8x8x2, q10 | |
| 96 | ||
| 97 | .macro compute_chroma_8x1_step action, s16x8, coeff | |
| 98 | \action c32x8_l, \s16x8\()_l, \coeff | |
| 99 | \action c32x8_h, \s16x8\()_h, \coeff | |
| 100 | .endm | |
| 101 | ||
| 102 | /* | |
| 103 | * in: r16x8, g16x8, b16x8 | |
| 104 | * out: c8x8 | |
| 105 | * clobber: q14-q15 | |
| 106 | */ | |
| 107 | .macro compute_chroma_8x1 c, C | |
| 108 | compute_chroma_8x1_step vmull, r16x8, CO_R\C | |
| 109 | compute_chroma_8x1_step vmlal, g16x8, CO_G\C | |
| 110 | compute_chroma_8x1_step vmlal, b16x8, CO_B\C | |
| 111 | ||
| 112 | vrshrn.i32 c16x8_l, c32x8_l, #15 | |
| 113 | vrshrn.i32 c16x8_h, c32x8_h, #15 | |
| 114 | vmovn.i16 \c\()8x8, c16x8 | |
| 115 | vadd.u8 \c\()8x8, \c\()8x8, BIAS_\C | |
| 116 | .endm | |
| 117 | ||
| 118 | ||
| 119 | loop_420sp rgbx, nv12, init, kernel_420_16x2, 32 |