idctdsp_init_arm.c (3233B)
1 /* 2 * ARM-optimized IDCT functions 3 * Copyright (c) 2001 Lionel Ulmer 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 #include <stddef.h> 23 #include <stdint.h> 24 25 #include "libavutil/attributes.h" 26 #include "libavutil/cpu.h" 27 #include "libavutil/arm/cpu.h" 28 #include "libavcodec/avcodec.h" 29 #include "libavcodec/idctdsp.h" 30 #include "idct.h" 31 #include "idctdsp_arm.h" 32 33 void ff_add_pixels_clamped_arm(const int16_t *block, uint8_t *dest, 34 ptrdiff_t line_size); 35 36 /* XXX: those functions should be suppressed ASAP when all IDCTs are 37 * converted */ 38 static void j_rev_dct_arm_put(uint8_t *dest, ptrdiff_t line_size, 39 int16_t *block) 40 { 41 ff_j_rev_dct_arm(block); 42 ff_put_pixels_clamped_c(block, dest, line_size); 43 } 44 45 static void j_rev_dct_arm_add(uint8_t *dest, ptrdiff_t line_size, 46 int16_t *block) 47 { 48 ff_j_rev_dct_arm(block); 49 ff_add_pixels_clamped_arm(block, dest, line_size); 50 } 51 52 static void simple_idct_arm_put(uint8_t *dest, ptrdiff_t line_size, 53 int16_t *block) 54 { 55 ff_simple_idct_arm(block); 56 ff_put_pixels_clamped_c(block, dest, line_size); 57 } 58 59 static void simple_idct_arm_add(uint8_t *dest, ptrdiff_t line_size, 60 int16_t *block) 61 { 62 ff_simple_idct_arm(block); 63 ff_add_pixels_clamped_arm(block, dest, line_size); 64 } 65 66 av_cold void ff_idctdsp_init_arm(IDCTDSPContext *c, AVCodecContext *avctx, 67 unsigned high_bit_depth) 68 { 69 int cpu_flags = av_get_cpu_flags(); 70 71 if (!avctx->lowres && !high_bit_depth) { 72 if ((avctx->idct_algo == FF_IDCT_AUTO && !(avctx->flags & AV_CODEC_FLAG_BITEXACT)) || 73 avctx->idct_algo == FF_IDCT_ARM) { 74 c->idct_put = j_rev_dct_arm_put; 75 c->idct_add = j_rev_dct_arm_add; 76 c->idct = ff_j_rev_dct_arm; 77 c->perm_type = FF_IDCT_PERM_LIBMPEG2; 78 } else if (avctx->idct_algo == FF_IDCT_SIMPLEARM) { 79 c->idct_put = simple_idct_arm_put; 80 c->idct_add = simple_idct_arm_add; 81 c->idct = ff_simple_idct_arm; 82 c->perm_type = FF_IDCT_PERM_NONE; 83 } 84 } 85 86 c->add_pixels_clamped = ff_add_pixels_clamped_arm; 87 88 if (have_armv5te(cpu_flags)) 89 ff_idctdsp_init_armv5te(c, avctx, high_bit_depth); 90 if (have_armv6(cpu_flags)) 91 ff_idctdsp_init_armv6(c, avctx, high_bit_depth); 92 if (have_neon(cpu_flags)) 93 ff_idctdsp_init_neon(c, avctx, high_bit_depth); 94 }