/* * 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); }