-
Notifications
You must be signed in to change notification settings - Fork 751
/
tegra_jpeg_rgb_packet_processor.cpp
305 lines (251 loc) · 7.73 KB
/
tegra_jpeg_rgb_packet_processor.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
/*
* This file is part of the OpenKinect Project. http://www.openkinect.org
*
* Copyright (c) 2014 individual OpenKinect contributors. See the CONTRIB file
* for details.
*
* This code is licensed to you under the terms of the Apache License, version
* 2.0, or, at your option, the terms of the GNU General Public License,
* version 2.0. See the APACHE20 and GPL2 files for the text of the licenses,
* or the following URLs:
* http://www.apache.org/licenses/LICENSE-2.0
* http://www.gnu.org/licenses/gpl-2.0.txt
*
* If you redistribute this file in source form, modified or unmodified, you
* may:
* 1) Leave this header intact and distribute it under the same terms,
* accompanying it with the APACHE20 and GPL20 files, or
* 2) Delete the Apache 2.0 clause and accompany it with the GPL2 file, or
* 3) Delete the GPL v2 clause and accompany it with the APACHE20 file
* In all cases you must keep the copyright notice intact and include a copy
* of the CONTRIB file.
*
* Binary distributions must follow the binary distribution requirements of
* either License.
*/
#include <libfreenect2/rgb_packet_processor.h>
#include "libfreenect2/logging.h"
namespace nv_headers {
#define DONT_USE_EXTERN_C
#define TEGRA_ACCELERATE
#include "libjpeg-8b/jpeglib.h"
}
#include <dlfcn.h>
#ifdef LIBFREENECT2_WITH_CXX11_SUPPORT
#define TYPEOF(expr) decltype(expr)
#else
#define TYPEOF(expr) __typeof__(expr)
#endif
#define FOR_ALL(MACRO) \
MACRO(jpeg_std_error) \
MACRO(jpeg_CreateDecompress) \
MACRO(jpeg_mem_src) \
MACRO(jpeg_read_header) \
MACRO(jpeg_start_decompress) \
MACRO(jpeg_read_scanlines) \
MACRO(jpeg_finish_decompress) \
MACRO(jpeg_abort_decompress) \
MACRO(jpeg_destroy_decompress)
class libjpeg_handle
{
private:
void *handle;
public:
#define DECLARE(func) TYPEOF(&nv_headers::func) func;
FOR_ALL(DECLARE)
bool good;
#define INIT(func) func(0),
libjpeg_handle(): FOR_ALL(INIT) good(false)
{
handle = dlopen(LIBFREENECT2_TEGRAJPEG_LIBRARY, RTLD_LAZY | RTLD_LOCAL | RTLD_DEEPBIND);
const char *err;
err = dlerror();
if (handle == NULL) {
LOG_ERROR << "dlopen: " << err;
return;
}
#define IMPORT(func) func = reinterpret_cast<TYPEOF(&nv_headers::func)>(dlsym(handle, #func)); if ((err = dlerror())) { LOG_ERROR << "dlsym: " << err; dlclose(handle); handle = NULL; return; }
FOR_ALL(IMPORT)
good = true;
}
~libjpeg_handle()
{
if (handle)
dlclose(handle);
}
};
using namespace nv_headers;
namespace libfreenect2
{
class TegraImage: public Buffer
{
public:
struct jpeg_decompress_struct dinfo;
};
class TegraImageAllocator: public Allocator
{
public:
void *owner;
struct jpeg_error_mgr *jerr;
libjpeg_handle &libjpeg;
TegraImageAllocator(void *owner, struct jpeg_error_mgr *jerr, libjpeg_handle &libjpeg):
owner(owner), jerr(jerr), libjpeg(libjpeg) {}
virtual Buffer *allocate(size_t size)
{
TegraImage *ti = new TegraImage();
ti->allocator = this;
ti->dinfo.client_data = owner;
ti->dinfo.err = jerr;
libjpeg.jpeg_create_decompress(&ti->dinfo);
return ti;
}
virtual void free(Buffer *b)
{
if (b == NULL)
return;
TegraImage *ti = static_cast<TegraImage *>(b);
libjpeg.jpeg_destroy_decompress(&ti->dinfo);
delete ti;
}
};
class TegraFrame: public Frame
{
public:
TegraFrame(size_t width, size_t height, size_t bpp, TegraImage *ti):
Frame(width, height, bpp, (unsigned char*)-1)
{
data = NULL;
rawdata = reinterpret_cast<unsigned char*>(ti);
}
TegraImage *image()
{
return reinterpret_cast<TegraImage *>(rawdata);
}
virtual ~TegraFrame()
{
image()->allocator->free(image());
rawdata = NULL;
}
void fill()
{
data = image()->dinfo.jpegTegraMgr->buff[0];
}
};
class TegraJpegRgbPacketProcessorImpl: public WithPerfLogging
{
public:
libjpeg_handle libjpeg;
struct jpeg_error_mgr jerr;
size_t real_bib;
static const size_t WIDTH = 1920;
static const size_t HEIGHT = 1080;
static const size_t BPP = 4;
bool good;
TegraFrame *frame;
Allocator *image_allocator;
TegraJpegRgbPacketProcessorImpl():
libjpeg(),
good(true),
frame(NULL),
image_allocator(NULL)
{
if (!libjpeg.good) {
good = false;
return;
}
libjpeg.jpeg_std_error(&jerr);
jerr.error_exit = TegraJpegRgbPacketProcessorImpl::my_error_exit;
image_allocator = new PoolAllocator(new TegraImageAllocator(reinterpret_cast<void*>(this), &jerr, libjpeg));
newFrame();
}
~TegraJpegRgbPacketProcessorImpl()
{
delete frame;
delete image_allocator;
}
void newFrame()
{
frame = new TegraFrame(WIDTH, HEIGHT, BPP, static_cast<TegraImage *>(image_allocator->allocate(0)));
frame->format = Frame::RGBX;
}
static inline TegraJpegRgbPacketProcessorImpl *owner(j_decompress_ptr dinfo)
{
return static_cast<TegraJpegRgbPacketProcessorImpl*>(dinfo->client_data);
}
static int fill_input_buffer(j_decompress_ptr dinfo)
{
dinfo->src->bytes_in_buffer = owner(dinfo)->real_bib;
return 1;
}
static void abort_jpeg_error(j_decompress_ptr dinfo, const char *msg)
{
owner(dinfo)->libjpeg.jpeg_abort_decompress(dinfo);
LOG_ERROR << msg;
owner(dinfo)->good = false;
}
static void my_error_exit(j_common_ptr info)
{
char buffer[JMSG_LENGTH_MAX];
info->err->format_message(info, buffer);
abort_jpeg_error((j_decompress_ptr)info, buffer);
}
void decompress(unsigned char *buf, size_t len)
{
j_decompress_ptr dinfo = &frame->image()->dinfo;
libjpeg.jpeg_mem_src(dinfo, buf, len);
// This hack prevents an extra memcpy in jpeg_read_header
real_bib = len;
dinfo->src->bytes_in_buffer = 0;
dinfo->src->fill_input_buffer = TegraJpegRgbPacketProcessorImpl::fill_input_buffer;
libjpeg.jpeg_read_header(dinfo, true);
if (dinfo->progressive_mode)
abort_jpeg_error(dinfo, "Tegra HW doesn't support progressive JPEG; use TurboJPEG");
if (!dinfo->tegra_acceleration)
abort_jpeg_error(dinfo, "Tegra HW acceleration is disabled unexpectedly");
if (dinfo->image_width != WIDTH || dinfo->image_height != HEIGHT)
abort_jpeg_error(dinfo, "image dimensions does not match preset");
dinfo->out_color_space = JCS_RGBA_8888;
libjpeg.jpeg_start_decompress(dinfo);
// Hardware acceleration returns the entire surface in one go.
// The normal way with software decoding uses jpeg_read_scanlines with loop.
if (libjpeg.jpeg_read_scanlines(dinfo, NULL, 0) != dinfo->output_height || dinfo->output_height != HEIGHT)
abort_jpeg_error(dinfo, "Incomplete decoding result");
/* Empirically: 1 surface for RGBA; 3 surfaces for YUV */
//size_t pitch = dinfo->jpegTegraMgr->pitch[0];
//unsigned char *surface = dinfo->jpegTegraMgr->buff[0];
//if (pitch == 0 || surface == NULL)
// abort_jpeg_error(dinfo, "Empty result buffer");
frame->fill();
libjpeg.jpeg_finish_decompress(dinfo);
}
};
TegraJpegRgbPacketProcessor::TegraJpegRgbPacketProcessor() :
impl_(new TegraJpegRgbPacketProcessorImpl())
{
}
TegraJpegRgbPacketProcessor::~TegraJpegRgbPacketProcessor()
{
delete impl_;
}
bool TegraJpegRgbPacketProcessor::good()
{
return impl_->good;
}
void TegraJpegRgbPacketProcessor::process(const RgbPacket &packet)
{
if (listener_ == NULL)
return;
impl_->startTiming();
impl_->frame->timestamp = packet.timestamp;
impl_->frame->sequence = packet.sequence;
impl_->frame->exposure = packet.exposure;
impl_->frame->gain = packet.gain;
impl_->frame->gamma = packet.gamma;
impl_->decompress(packet.jpeg_buffer, packet.jpeg_buffer_length);
impl_->stopTiming(LOG_INFO);
if (!impl_->good)
impl_->frame->status = 1;
if (listener_->onNewFrame(Frame::Color, impl_->frame))
impl_->newFrame();
}
} /* namespace libfreenect2 */