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