| /* |
| * ARM-optimized IDCT functions |
| * Copyright (c) 2001 Lionel Ulmer |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "libavutil/attributes.h" |
| #include "libavutil/cpu.h" |
| #include "libavutil/arm/cpu.h" |
| #include "libavcodec/avcodec.h" |
| #include "libavcodec/idctdsp.h" |
| #include "idct.h" |
| #include "idctdsp_arm.h" |
| |
| void ff_add_pixels_clamped_arm(const int16_t *block, uint8_t *dest, |
| ptrdiff_t line_size); |
| |
| /* XXX: those functions should be suppressed ASAP when all IDCTs are |
| * converted */ |
| static void j_rev_dct_arm_put(uint8_t *dest, ptrdiff_t line_size, |
| int16_t *block) |
| { |
| ff_j_rev_dct_arm(block); |
| ff_put_pixels_clamped_c(block, dest, line_size); |
| } |
| |
| static void j_rev_dct_arm_add(uint8_t *dest, ptrdiff_t line_size, |
| int16_t *block) |
| { |
| ff_j_rev_dct_arm(block); |
| ff_add_pixels_clamped_arm(block, dest, line_size); |
| } |
| |
| static void simple_idct_arm_put(uint8_t *dest, ptrdiff_t line_size, |
| int16_t *block) |
| { |
| ff_simple_idct_arm(block); |
| ff_put_pixels_clamped_c(block, dest, line_size); |
| } |
| |
| static void simple_idct_arm_add(uint8_t *dest, ptrdiff_t line_size, |
| int16_t *block) |
| { |
| ff_simple_idct_arm(block); |
| ff_add_pixels_clamped_arm(block, dest, line_size); |
| } |
| |
| av_cold void ff_idctdsp_init_arm(IDCTDSPContext *c, AVCodecContext *avctx, |
| unsigned high_bit_depth) |
| { |
| int cpu_flags = av_get_cpu_flags(); |
| |
| if (!avctx->lowres && !high_bit_depth) { |
| if ((avctx->idct_algo == FF_IDCT_AUTO && !(avctx->flags & AV_CODEC_FLAG_BITEXACT)) || |
| avctx->idct_algo == FF_IDCT_ARM) { |
| c->idct_put = j_rev_dct_arm_put; |
| c->idct_add = j_rev_dct_arm_add; |
| c->idct = ff_j_rev_dct_arm; |
| c->perm_type = FF_IDCT_PERM_LIBMPEG2; |
| } else if (avctx->idct_algo == FF_IDCT_SIMPLEARM) { |
| c->idct_put = simple_idct_arm_put; |
| c->idct_add = simple_idct_arm_add; |
| c->idct = ff_simple_idct_arm; |
| c->perm_type = FF_IDCT_PERM_NONE; |
| } |
| } |
| |
| c->add_pixels_clamped = ff_add_pixels_clamped_arm; |
| |
| if (have_armv5te(cpu_flags)) |
| ff_idctdsp_init_armv5te(c, avctx, high_bit_depth); |
| if (have_armv6(cpu_flags)) |
| ff_idctdsp_init_armv6(c, avctx, high_bit_depth); |
| if (have_neon(cpu_flags)) |
| ff_idctdsp_init_neon(c, avctx, high_bit_depth); |
| } |