Libav
yuv2rgb_bfin.c
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1 /*
2  * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
3  *
4  * Blackfin video color space converter operations
5  * convert I420 YV12 to RGB in various formats
6  *
7  * This file is part of Libav.
8  *
9  * Libav is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * Libav is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with Libav; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include <stdint.h>
25 
26 #include "config.h"
27 #include "libavutil/attributes.h"
29 
30 #if defined(__FDPIC__) && CONFIG_SRAM
31 #define L1CODE __attribute__((l1_text))
32 #else
33 #define L1CODE
34 #endif
35 
36 void ff_bfin_yuv2rgb555_line(const uint8_t *Y, const uint8_t *U,
37  const uint8_t *V, uint8_t *out,
38  int w, uint32_t *coeffs) L1CODE;
39 
40 void ff_bfin_yuv2rgb565_line(const uint8_t *Y, const uint8_t *U,
41  const uint8_t *V, uint8_t *out,
42  int w, uint32_t *coeffs) L1CODE;
43 
44 void ff_bfin_yuv2rgb24_line(const uint8_t *Y, const uint8_t *U,
45  const uint8_t *V, uint8_t *out,
46  int w, uint32_t *coeffs) L1CODE;
47 
48 typedef void (*ltransform)(const uint8_t *Y, const uint8_t *U, const uint8_t *V,
49  uint8_t *out, int w, uint32_t *coeffs);
50 
51 static void bfin_prepare_coefficients(SwsContext *c, int rgb, int masks)
52 {
53  int oy;
54  oy = c->yOffset & 0xffff;
55  oy = oy >> 3; // keep everything U8.0 for offset calculation
56 
57  c->oc = 128 * 0x01010101U;
58  c->oy = oy * 0x01010101U;
59 
60  /* copy 64bit vector coeffs down to 32bit vector coeffs */
61  c->cy = c->yCoeff;
62  c->zero = 0;
63 
64  if (rgb) {
65  c->crv = c->vrCoeff;
66  c->cbu = c->ubCoeff;
67  c->cgu = c->ugCoeff;
68  c->cgv = c->vgCoeff;
69  } else {
70  c->crv = c->ubCoeff;
71  c->cbu = c->vrCoeff;
72  c->cgu = c->vgCoeff;
73  c->cgv = c->ugCoeff;
74  }
75 
76  if (masks == 555) {
77  c->rmask = 0x001f * 0x00010001U;
78  c->gmask = 0x03e0 * 0x00010001U;
79  c->bmask = 0x7c00 * 0x00010001U;
80  } else if (masks == 565) {
81  c->rmask = 0x001f * 0x00010001U;
82  c->gmask = 0x07e0 * 0x00010001U;
83  c->bmask = 0xf800 * 0x00010001U;
84  }
85 }
86 
87 static int core_yuv420_rgb(SwsContext *c, const uint8_t **in, int *instrides,
88  int srcSliceY, int srcSliceH, uint8_t **oplanes,
89  int *outstrides, ltransform lcscf,
90  int rgb, int masks)
91 {
92  const uint8_t *py, *pu, *pv;
93  uint8_t *op;
94  int w = instrides[0];
95  int h2 = srcSliceH >> 1;
96  int i;
97 
98  bfin_prepare_coefficients(c, rgb, masks);
99 
100  py = in[0];
101  pu = in[1 + (1 ^ rgb)];
102  pv = in[1 + (0 ^ rgb)];
103 
104  op = oplanes[0] + srcSliceY * outstrides[0];
105 
106  for (i = 0; i < h2; i++) {
107  lcscf(py, pu, pv, op, w, &c->oy);
108 
109  py += instrides[0];
110  op += outstrides[0];
111 
112  lcscf(py, pu, pv, op, w, &c->oy);
113 
114  py += instrides[0];
115  pu += instrides[1];
116  pv += instrides[2];
117  op += outstrides[0];
118  }
119 
120  return srcSliceH;
121 }
122 
123 static int bfin_yuv420_rgb555(SwsContext *c, const uint8_t **in, int *instrides,
124  int srcSliceY, int srcSliceH,
125  uint8_t **oplanes, int *outstrides)
126 {
127  return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
128  outstrides, ff_bfin_yuv2rgb555_line, 1, 555);
129 }
130 
131 static int bfin_yuv420_bgr555(SwsContext *c, const uint8_t **in, int *instrides,
132  int srcSliceY, int srcSliceH,
133  uint8_t **oplanes, int *outstrides)
134 {
135  return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
136  outstrides, ff_bfin_yuv2rgb555_line, 0, 555);
137 }
138 
139 static int bfin_yuv420_rgb24(SwsContext *c, const uint8_t **in, int *instrides,
140  int srcSliceY, int srcSliceH,
141  uint8_t **oplanes, int *outstrides)
142 {
143  return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
144  outstrides, ff_bfin_yuv2rgb24_line, 1, 888);
145 }
146 
147 static int bfin_yuv420_bgr24(SwsContext *c, const uint8_t **in, int *instrides,
148  int srcSliceY, int srcSliceH,
149  uint8_t **oplanes, int *outstrides)
150 {
151  return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
152  outstrides, ff_bfin_yuv2rgb24_line, 0, 888);
153 }
154 
155 static int bfin_yuv420_rgb565(SwsContext *c, const uint8_t **in, int *instrides,
156  int srcSliceY, int srcSliceH,
157  uint8_t **oplanes, int *outstrides)
158 {
159  return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
160  outstrides, ff_bfin_yuv2rgb565_line, 1, 565);
161 }
162 
163 static int bfin_yuv420_bgr565(SwsContext *c, const uint8_t **in, int *instrides,
164  int srcSliceY, int srcSliceH,
165  uint8_t **oplanes, int *outstrides)
166 {
167  return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
168  outstrides, ff_bfin_yuv2rgb565_line, 0, 565);
169 }
170 
172 {
173  SwsFunc f;
174 
175  switch (c->dstFormat) {
176  case AV_PIX_FMT_RGB555:
177  f = bfin_yuv420_rgb555;
178  break;
179  case AV_PIX_FMT_BGR555:
180  f = bfin_yuv420_bgr555;
181  break;
182  case AV_PIX_FMT_RGB565:
183  f = bfin_yuv420_rgb565;
184  break;
185  case AV_PIX_FMT_BGR565:
186  f = bfin_yuv420_bgr565;
187  break;
188  case AV_PIX_FMT_RGB24:
189  f = bfin_yuv420_rgb24;
190  break;
191  case AV_PIX_FMT_BGR24:
192  f = bfin_yuv420_bgr24;
193  break;
194  default:
195  return 0;
196  }
197 
198  av_log(c, AV_LOG_INFO, "BlackFin accelerated color space converter %s\n",
200 
201  return f;
202 }
uint64_t vrCoeff
const char * sws_format_name(enum AVPixelFormat format)
Definition: utils.c:198
static const int16_t coeffs[28]
static int core_yuv420_rgb(SwsContext *c, const uint8_t **in, int *instrides, int srcSliceY, int srcSliceH, uint8_t **oplanes, int *outstrides, ltransform lcscf, int rgb, int masks)
Definition: yuv2rgb_bfin.c:87
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:67
Definition: vf_drawbox.c:37
Macro definitions for various function/variable attributes.
uint64_t ubCoeff
Definition: vf_drawbox.c:37
uint8_t
#define av_cold
Definition: attributes.h:66
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;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);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
static int bfin_yuv420_rgb24(SwsContext *c, const uint8_t **in, int *instrides, int srcSliceY, int srcSliceH, uint8_t **oplanes, int *outstrides)
Definition: yuv2rgb_bfin.c:139
uint64_t yOffset
enum AVPixelFormat dstFormat
Destination pixel format.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;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);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
void av_log(void *avcl, int level, const char *fmt,...)
Definition: log.c:148
uint64_t ugCoeff
static int bfin_yuv420_rgb565(SwsContext *c, const uint8_t **in, int *instrides, int srcSliceY, int srcSliceH, uint8_t **oplanes, int *outstrides)
Definition: yuv2rgb_bfin.c:155
void ff_bfin_yuv2rgb555_line(const uint8_t *Y, const uint8_t *U, const uint8_t *V, uint8_t *out, int w, uint32_t *coeffs) L1CODE
#define V
Definition: options_table.h:35
static int bfin_yuv420_bgr555(SwsContext *c, const uint8_t **in, int *instrides, int srcSliceY, int srcSliceH, uint8_t **oplanes, int *outstrides)
Definition: yuv2rgb_bfin.c:131
uint64_t vgCoeff
static void bfin_prepare_coefficients(SwsContext *c, int rgb, int masks)
Definition: yuv2rgb_bfin.c:51
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:68
void ff_bfin_yuv2rgb24_line(const uint8_t *Y, const uint8_t *U, const uint8_t *V, uint8_t *out, int w, uint32_t *coeffs) L1CODE
#define AV_PIX_FMT_BGR555
Definition: pixfmt.h:218
#define AV_LOG_INFO
Standard information.
Definition: log.h:134
static int bfin_yuv420_rgb555(SwsContext *c, const uint8_t **in, int *instrides, int srcSliceY, int srcSliceH, uint8_t **oplanes, int *outstrides)
Definition: yuv2rgb_bfin.c:123
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
int(* SwsFunc)(struct SwsContext *context, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
#define AV_PIX_FMT_BGR565
Definition: pixfmt.h:217
void ff_bfin_yuv2rgb565_line(const uint8_t *Y, const uint8_t *U, const uint8_t *V, uint8_t *out, int w, uint32_t *coeffs) L1CODE
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:76
#define L1CODE
Definition: yuv2rgb_bfin.c:33
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:214
av_cold SwsFunc ff_yuv2rgb_init_bfin(SwsContext *c)
Definition: yuv2rgb_bfin.c:171
void(* ltransform)(const uint8_t *Y, const uint8_t *U, const uint8_t *V, uint8_t *out, int w, uint32_t *coeffs)
Definition: yuv2rgb_bfin.c:48
static int bfin_yuv420_bgr565(SwsContext *c, const uint8_t **in, int *instrides, int srcSliceY, int srcSliceH, uint8_t **oplanes, int *outstrides)
Definition: yuv2rgb_bfin.c:163
uint64_t yCoeff
#define AV_PIX_FMT_RGB565
Definition: pixfmt.h:213
static int bfin_yuv420_bgr24(SwsContext *c, const uint8_t **in, int *instrides, int srcSliceY, int srcSliceH, uint8_t **oplanes, int *outstrides)
Definition: yuv2rgb_bfin.c:147