Libav
dsputil_init_arm.c
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1 /*
2  * ARM optimized DSP utils
3  * Copyright (c) 2001 Lionel Ulmer
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/attributes.h"
23 #include "libavutil/arm/cpu.h"
24 #include "dsputil_arm.h"
25 
26 void ff_j_rev_dct_arm(int16_t *data);
27 void ff_simple_idct_arm(int16_t *data);
28 
29 /* XXX: local hack */
30 static void (*ff_put_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
31 static void (*ff_add_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
32 
33 void ff_add_pixels_clamped_arm(const int16_t *block, uint8_t *dest,
34  int line_size);
35 
36 /* XXX: those functions should be suppressed ASAP when all IDCTs are
37  converted */
38 static void j_rev_dct_arm_put(uint8_t *dest, int line_size, int16_t *block)
39 {
40  ff_j_rev_dct_arm (block);
41  ff_put_pixels_clamped(block, dest, line_size);
42 }
43 static void j_rev_dct_arm_add(uint8_t *dest, int line_size, int16_t *block)
44 {
45  ff_j_rev_dct_arm (block);
46  ff_add_pixels_clamped(block, dest, line_size);
47 }
48 static void simple_idct_arm_put(uint8_t *dest, int line_size, int16_t *block)
49 {
50  ff_simple_idct_arm (block);
51  ff_put_pixels_clamped(block, dest, line_size);
52 }
53 static void simple_idct_arm_add(uint8_t *dest, int line_size, int16_t *block)
54 {
55  ff_simple_idct_arm (block);
56  ff_add_pixels_clamped(block, dest, line_size);
57 }
58 
60 {
62 
65 
66  if (avctx->bits_per_raw_sample <= 8) {
67  if(avctx->idct_algo == FF_IDCT_AUTO ||
68  avctx->idct_algo == FF_IDCT_ARM){
73  } else if (avctx->idct_algo == FF_IDCT_SIMPLEARM){
78  }
79  }
80 
82 
83  if (have_armv5te(cpu_flags)) ff_dsputil_init_armv5te(c, avctx);
84  if (have_armv6(cpu_flags)) ff_dsputil_init_armv6(c, avctx);
85  if (have_neon(cpu_flags)) ff_dsputil_init_neon(c, avctx);
86 }
static void simple_idct_arm_add(uint8_t *dest, int line_size, int16_t *block)
static void j_rev_dct_arm_add(uint8_t *dest, int line_size, int16_t *block)
#define have_armv6(flags)
Definition: cpu.h:27
void ff_add_pixels_clamped_arm(const int16_t *block, uint8_t *dest, int line_size)
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2488
void(* idct_add)(uint8_t *dest, int line_size, int16_t *block)
block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
Definition: dsputil.h:226
Macro definitions for various function/variable attributes.
void ff_simple_idct_arm(int16_t *data)
void(* idct_put)(uint8_t *dest, int line_size, int16_t *block)
block -> idct -> clip to unsigned 8 bit -> dest.
Definition: dsputil.h:220
uint8_t
#define av_cold
Definition: attributes.h:66
#define have_armv5te(flags)
Definition: cpu.h:26
void(* add_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size)
Definition: dsputil.h:130
const char data[16]
Definition: mxf.c:66
#define FF_IDCT_ARM
Definition: avcodec.h:2461
#define FF_IDCT_AUTO
Definition: avcodec.h:2457
#define FF_IDCT_SIMPLEARM
Definition: avcodec.h:2464
static void(* ff_put_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size)
#define FF_LIBMPEG2_IDCT_PERM
Definition: dsputil.h:243
void(* idct)(int16_t *block)
Definition: dsputil.h:213
#define have_neon(flags)
Definition: cpu.h:26
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:2456
AVCodecContext * avctx
Definition: apedec.c:135
#define FF_NO_IDCT_PERM
Definition: dsputil.h:242
static int cpu_flags
Definition: dct-test.c:73
void(* put_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size)
Definition: dsputil.h:128
int idct_permutation_type
Definition: dsputil.h:241
main external API structure.
Definition: avcodec.h:1054
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
static void(* ff_add_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size)
void ff_j_rev_dct_arm(int16_t *data)
av_cold void ff_dsputil_init_arm(DSPContext *c, AVCodecContext *avctx)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:47
static void simple_idct_arm_put(uint8_t *dest, int line_size, int16_t *block)
void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx)
static void j_rev_dct_arm_put(uint8_t *dest, int line_size, int16_t *block)
void ff_dsputil_init_armv6(DSPContext *c, AVCodecContext *avctx)
DSPContext.
Definition: dsputil.h:124
void ff_dsputil_init_armv5te(DSPContext *c, AVCodecContext *avctx)
static int16_t block[64]
Definition: dct-test.c:170