src/third_party/ffmpeg/libavcodec/arm/dsputil_init_arm.c

   1 /*
   2  * ARM optimized DSP utils
   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 <stdint.h>
  23
  24 #include "libavutil/attributes.h"
  25 #include "libavutil/cpu.h"
  26 #include "libavutil/arm/cpu.h"
  27 #include "libavcodec/avcodec.h"
  28 #include "libavcodec/dsputil.h"
  29 #include "dsputil_arm.h"
  30
  31 void ff_j_rev_dct_arm(int16_t *data);
  32 void ff_simple_idct_arm(int16_t *data);
  33
  34 /* XXX: local hack */
  35 static void (*ff_put_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
  36 static void (*ff_add_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
  37
  38 void ff_add_pixels_clamped_arm(const int16_t *block, uint8_t *dest,
  39                                int line_size);
  40
  41 /* XXX: those functions should be suppressed ASAP when all IDCTs are
  42  * converted */
  43 static void j_rev_dct_arm_put(uint8_t *dest, int line_size, int16_t *block)
  44 {
  45     ff_j_rev_dct_arm(block);
  46     ff_put_pixels_clamped(block, dest, line_size);
  47 }
  48
  49 static void j_rev_dct_arm_add(uint8_t *dest, int line_size, int16_t *block)
  50 {
  51     ff_j_rev_dct_arm(block);
  52     ff_add_pixels_clamped(block, dest, line_size);
  53 }
  54
  55 static void simple_idct_arm_put(uint8_t *dest, int line_size, int16_t *block)
  56 {
  57     ff_simple_idct_arm(block);
  58     ff_put_pixels_clamped(block, dest, line_size);
  59 }
  60
  61 static void simple_idct_arm_add(uint8_t *dest, int line_size, int16_t *block)
  62 {
  63     ff_simple_idct_arm(block);
  64     ff_add_pixels_clamped(block, dest, line_size);
  65 }
  66
  67 av_cold void ff_dsputil_init_arm(DSPContext *c, AVCodecContext *avctx,
  68                                  unsigned high_bit_depth)
  69 {
  70     int cpu_flags = av_get_cpu_flags();
  71
  72     ff_put_pixels_clamped = c->put_pixels_clamped;
  73     ff_add_pixels_clamped = c->add_pixels_clamped;
  74
  75     if (!avctx->lowres && !high_bit_depth) {
  76         if (avctx->idct_algo == FF_IDCT_AUTO ||
  77             avctx->idct_algo == FF_IDCT_ARM) {
  78             c->idct_put              = j_rev_dct_arm_put;
  79             c->idct_add              = j_rev_dct_arm_add;
  80             c->idct                  = ff_j_rev_dct_arm;
  81             c->idct_permutation_type = FF_LIBMPEG2_IDCT_PERM;
  82         } else if (avctx->idct_algo == FF_IDCT_SIMPLEARM) {
  83             c->idct_put              = simple_idct_arm_put;
  84             c->idct_add              = simple_idct_arm_add;
  85             c->idct                  = ff_simple_idct_arm;
  86             c->idct_permutation_type = FF_NO_IDCT_PERM;
  87         }
  88     }
  89
  90     c->add_pixels_clamped = ff_add_pixels_clamped_arm;
  91
  92     if (have_armv5te(cpu_flags))
  93         ff_dsputil_init_armv5te(c, avctx, high_bit_depth);
  94     if (have_armv6(cpu_flags))
  95         ff_dsputil_init_armv6(c, avctx, high_bit_depth);
  96     if (have_neon(cpu_flags))
  97         ff_dsputil_init_neon(c, avctx, high_bit_depth);
  98 }