yading@10: /*
yading@10:  * ARM optimized DSP utils
yading@10:  * Copyright (c) 2001 Lionel Ulmer
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include "libavutil/attributes.h"
yading@10: #include "libavutil/arm/cpu.h"
yading@10: #include "dsputil_arm.h"
yading@10: 
yading@10: void ff_j_rev_dct_arm(int16_t *data);
yading@10: void ff_simple_idct_arm(int16_t *data);
yading@10: 
yading@10: /* XXX: local hack */
yading@10: static void (*ff_put_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
yading@10: static void (*ff_add_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
yading@10: 
yading@10: void ff_add_pixels_clamped_arm(const int16_t *block, uint8_t *dest,
yading@10:                                int line_size);
yading@10: 
yading@10: /* XXX: those functions should be suppressed ASAP when all IDCTs are
yading@10:    converted */
yading@10: static void j_rev_dct_arm_put(uint8_t *dest, int line_size, int16_t *block)
yading@10: {
yading@10:     ff_j_rev_dct_arm (block);
yading@10:     ff_put_pixels_clamped(block, dest, line_size);
yading@10: }
yading@10: static void j_rev_dct_arm_add(uint8_t *dest, int line_size, int16_t *block)
yading@10: {
yading@10:     ff_j_rev_dct_arm (block);
yading@10:     ff_add_pixels_clamped(block, dest, line_size);
yading@10: }
yading@10: static void simple_idct_arm_put(uint8_t *dest, int line_size, int16_t *block)
yading@10: {
yading@10:     ff_simple_idct_arm (block);
yading@10:     ff_put_pixels_clamped(block, dest, line_size);
yading@10: }
yading@10: static void simple_idct_arm_add(uint8_t *dest, int line_size, int16_t *block)
yading@10: {
yading@10:     ff_simple_idct_arm (block);
yading@10:     ff_add_pixels_clamped(block, dest, line_size);
yading@10: }
yading@10: 
yading@10: av_cold void ff_dsputil_init_arm(DSPContext *c, AVCodecContext *avctx)
yading@10: {
yading@10:     int cpu_flags = av_get_cpu_flags();
yading@10: 
yading@10:     ff_put_pixels_clamped = c->put_pixels_clamped;
yading@10:     ff_add_pixels_clamped = c->add_pixels_clamped;
yading@10: 
yading@10:     if (!avctx->lowres && avctx->bits_per_raw_sample <= 8) {
yading@10:         if(avctx->idct_algo == FF_IDCT_AUTO ||
yading@10:            avctx->idct_algo == FF_IDCT_ARM){
yading@10:             c->idct_put              = j_rev_dct_arm_put;
yading@10:             c->idct_add              = j_rev_dct_arm_add;
yading@10:             c->idct                  = ff_j_rev_dct_arm;
yading@10:             c->idct_permutation_type = FF_LIBMPEG2_IDCT_PERM;
yading@10:         } else if (avctx->idct_algo == FF_IDCT_SIMPLEARM){
yading@10:             c->idct_put              = simple_idct_arm_put;
yading@10:             c->idct_add              = simple_idct_arm_add;
yading@10:             c->idct                  = ff_simple_idct_arm;
yading@10:             c->idct_permutation_type = FF_NO_IDCT_PERM;
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     c->add_pixels_clamped = ff_add_pixels_clamped_arm;
yading@10: 
yading@10:     if (have_armv5te(cpu_flags)) ff_dsputil_init_armv5te(c, avctx);
yading@10:     if (have_armv6(cpu_flags))   ff_dsputil_init_armv6(c, avctx);
yading@10:     if (have_neon(cpu_flags))    ff_dsputil_init_neon(c, avctx);
yading@10: }