Libav
vf_gradfun_init.c
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1 /*
2  * Copyright (C) 2009 Loren Merritt <lorenm@u.washington.edu>
3  *
4  * This file is part of Libav.
5  *
6  * Libav is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * Libav is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with Libav; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "config.h"
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/mem.h"
25 #include "libavutil/x86/asm.h"
26 #include "libavutil/x86/cpu.h"
27 #include "libavfilter/gradfun.h"
28 
29 void ff_gradfun_filter_line_mmxext(intptr_t x, uint8_t *dst, uint8_t *src,
30  uint16_t *dc, int thresh,
31  const uint16_t *dithers);
32 
33 void ff_gradfun_filter_line_ssse3(intptr_t x, uint8_t *dst, uint8_t *src,
34  uint16_t *dc, int thresh,
35  const uint16_t *dithers);
36 
37 void ff_gradfun_blur_line_movdqa_sse2(intptr_t x, uint16_t *buf,
38  uint16_t *buf1, uint16_t *dc,
39  uint8_t *src1, uint8_t *src2);
40 void ff_gradfun_blur_line_movdqu_sse2(intptr_t x, uint16_t *buf,
41  uint16_t *buf1, uint16_t *dc,
42  uint8_t *src1, uint8_t *src2);
43 
44 #if HAVE_YASM
45 static void gradfun_filter_line(uint8_t *dst, uint8_t *src, uint16_t *dc,
46  int width, int thresh, const uint16_t *dithers,
47  int alignment)
48 {
49  intptr_t x;
50  if (width & alignment) {
51  x = width & ~alignment;
52  ff_gradfun_filter_line_c(dst + x, src + x, dc + x / 2,
53  width - x, thresh, dithers);
54  width = x;
55  }
56  x = -width;
57  ff_gradfun_filter_line_mmxext(x, dst + width, src + width, dc + width / 2,
58  thresh, dithers);
59 }
60 
61 static void gradfun_filter_line_mmxext(uint8_t *dst, uint8_t *src, uint16_t *dc,
62  int width, int thresh,
63  const uint16_t *dithers)
64 {
65  gradfun_filter_line(dst, src, dc, width, thresh, dithers, 3);
66 }
67 
68 static void gradfun_filter_line_ssse3(uint8_t *dst, uint8_t *src, uint16_t *dc,
69  int width, int thresh,
70  const uint16_t *dithers)
71 {
72  gradfun_filter_line(dst, src, dc, width, thresh, dithers, 7);
73 }
74 
75 static void gradfun_blur_line_sse2(uint16_t *dc, uint16_t *buf, uint16_t *buf1,
76  uint8_t *src, int src_linesize, int width)
77 {
78  intptr_t x = -2 * width;
79  if (((intptr_t) src | src_linesize) & 15)
80  ff_gradfun_blur_line_movdqu_sse2(x, buf + width, buf1 + width,
81  dc + width, src + width * 2,
82  src + width * 2 + src_linesize);
83  else
84  ff_gradfun_blur_line_movdqa_sse2(x, buf + width, buf1 + width,
85  dc + width, src + width * 2,
86  src + width * 2 + src_linesize);
87 }
88 #endif /* HAVE_YASM */
89 
91 {
92 #if HAVE_YASM
93  int cpu_flags = av_get_cpu_flags();
94 
95  if (EXTERNAL_MMXEXT(cpu_flags))
96  gf->filter_line = gradfun_filter_line_mmxext;
97  if (EXTERNAL_SSSE3(cpu_flags))
98  gf->filter_line = gradfun_filter_line_ssse3;
99 
100  if (EXTERNAL_SSE2(cpu_flags))
101  gf->blur_line = gradfun_blur_line_sse2;
102 #endif /* HAVE_YASM */
103 }
memory handling functions
Holds instance-specific information for gradfun.
Definition: gradfun.h:28
Macro definitions for various function/variable attributes.
void(* filter_line)(uint8_t *dst, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers)
DSP functions.
Definition: gradfun.h:38
void ff_gradfun_filter_line_c(uint8_t *dst, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers)
Definition: vf_gradfun.c:57
uint8_t
#define av_cold
Definition: attributes.h:66
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:50
void(* blur_line)(uint16_t *dc, uint16_t *buf, uint16_t *buf1, uint8_t *src, int src_linesize, int width)
Definition: gradfun.h:39
static int width
Definition: utils.c:156
#define EXTERNAL_SSSE3(flags)
Definition: cpu.h:52
void ff_gradfun_filter_line_mmxext(intptr_t x, uint8_t *dst, uint8_t *src, uint16_t *dc, int thresh, const uint16_t *dithers)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:47
void ff_gradfun_blur_line_movdqa_sse2(intptr_t x, uint16_t *buf, uint16_t *buf1, uint16_t *dc, uint8_t *src1, uint8_t *src2)
#define EXTERNAL_MMXEXT(flags)
Definition: cpu.h:48
av_cold void ff_gradfun_init_x86(GradFunContext *gf)
void ff_gradfun_filter_line_ssse3(intptr_t x, uint8_t *dst, uint8_t *src, uint16_t *dc, int thresh, const uint16_t *dithers)
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_dlog(ac->avr, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> dc
void ff_gradfun_blur_line_movdqu_sse2(intptr_t x, uint16_t *buf, uint16_t *buf1, uint16_t *dc, uint8_t *src1, uint8_t *src2)