1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
---|
2 | /* |
---|
3 | * Copyright (C) 2011, Purdue Research Foundation |
---|
4 | * |
---|
5 | * Author: Leif Delgass <ldelgass@purdue.edu> |
---|
6 | */ |
---|
7 | |
---|
8 | #include <cstdio> |
---|
9 | #include <cstring> |
---|
10 | #include <cstdlib> |
---|
11 | #include <string> |
---|
12 | #include <sstream> |
---|
13 | #include <unistd.h> |
---|
14 | #include <signal.h> |
---|
15 | |
---|
16 | #include "Trace.h" |
---|
17 | #include "RpVtkRenderServer.h" |
---|
18 | #include "RpVtkRendererCmd.h" |
---|
19 | #include "RpVtkRenderer.h" |
---|
20 | #include "PPMWriter.h" |
---|
21 | #include "TGAWriter.h" |
---|
22 | |
---|
23 | using namespace Rappture::VtkVis; |
---|
24 | |
---|
25 | int Rappture::VtkVis::g_fdIn = STDIN_FILENO; ///< Input file descriptor |
---|
26 | int Rappture::VtkVis::g_fdOut = STDOUT_FILENO; ///< Output file descriptor |
---|
27 | FILE *Rappture::VtkVis::g_fIn = stdin; ///< Input file handle |
---|
28 | FILE *Rappture::VtkVis::g_fOut = stdout; ///< Output file handle |
---|
29 | FILE *Rappture::VtkVis::g_fLog = NULL; ///< Trace logging file handle |
---|
30 | Renderer *Rappture::VtkVis::g_renderer = NULL; ///< Main render worker |
---|
31 | |
---|
32 | static void |
---|
33 | writeFrame(int fd, vtkUnsignedCharArray *imgData) |
---|
34 | { |
---|
35 | #ifdef DEBUG |
---|
36 | if (g_renderer->getCameraMode() == Renderer::IMAGE) { |
---|
37 | double xywh[4]; |
---|
38 | g_renderer->getScreenWorldCoords(xywh); |
---|
39 | TRACE("Image bbox: %g %g %g %g", |
---|
40 | xywh[0], |
---|
41 | (xywh[1] + xywh[3]), |
---|
42 | (xywh[0] + xywh[2]), |
---|
43 | xywh[1]); |
---|
44 | } |
---|
45 | |
---|
46 | writeTGAFile("/tmp/frame.tga", |
---|
47 | imgData->GetPointer(0), |
---|
48 | g_renderer->getWindowWidth(), |
---|
49 | g_renderer->getWindowHeight()); |
---|
50 | #else |
---|
51 | if (g_renderer->getCameraMode() == Renderer::IMAGE) { |
---|
52 | double xywh[4]; |
---|
53 | g_renderer->getScreenWorldCoords(xywh); |
---|
54 | std::ostringstream oss; |
---|
55 | oss.precision(12); |
---|
56 | // Send upper left and lower right corners as bbox |
---|
57 | oss << "nv>image -type image -bbox {" |
---|
58 | << std::scientific |
---|
59 | << xywh[0] << " " |
---|
60 | << (xywh[1] + xywh[3]) << " " |
---|
61 | << (xywh[0] + xywh[2]) << " " |
---|
62 | << xywh[1] << "} -bytes"; |
---|
63 | |
---|
64 | writePPM(fd, oss.str().c_str(), |
---|
65 | imgData->GetPointer(0), |
---|
66 | g_renderer->getWindowWidth(), |
---|
67 | g_renderer->getWindowHeight()); |
---|
68 | } else { |
---|
69 | writePPM(fd, "nv>image -type image -bytes", |
---|
70 | imgData->GetPointer(0), |
---|
71 | g_renderer->getWindowWidth(), |
---|
72 | g_renderer->getWindowHeight()); |
---|
73 | } |
---|
74 | #endif |
---|
75 | } |
---|
76 | |
---|
77 | static void |
---|
78 | initService() |
---|
79 | { |
---|
80 | const char *user = getenv("USER"); |
---|
81 | char *logName = NULL; |
---|
82 | int logNameLen = 0; |
---|
83 | |
---|
84 | if (user == NULL) { |
---|
85 | logNameLen = 19+1; |
---|
86 | logName = (char *)calloc(logNameLen, sizeof(char)); |
---|
87 | strncpy(logName, "/tmp/vtkvis_log.txt", logNameLen); |
---|
88 | } |
---|
89 | else { |
---|
90 | logNameLen = 16+strlen(user)+4+1; |
---|
91 | logName = (char *)calloc(logNameLen, sizeof(char)); |
---|
92 | strncpy(logName, "/tmp/vtkvis_log_", logNameLen); |
---|
93 | strncat(logName, user, strlen(user)); |
---|
94 | strncat(logName, ".txt", 4); |
---|
95 | } |
---|
96 | |
---|
97 | // open log and map stderr to log file |
---|
98 | g_fLog = fopen(logName, "w"); |
---|
99 | close(STDERR_FILENO); |
---|
100 | dup2(fileno(g_fLog), STDERR_FILENO); |
---|
101 | // flush junk |
---|
102 | fflush(stderr); |
---|
103 | |
---|
104 | // clean up malloc'd memory |
---|
105 | if (logName != NULL) { |
---|
106 | free(logName); |
---|
107 | } |
---|
108 | } |
---|
109 | |
---|
110 | static void |
---|
111 | exitService() |
---|
112 | { |
---|
113 | // close log file |
---|
114 | if (g_fLog != NULL) { |
---|
115 | fclose(g_fLog); |
---|
116 | g_fLog = NULL; |
---|
117 | } |
---|
118 | } |
---|
119 | |
---|
120 | int |
---|
121 | main(int argc, char *argv[]) |
---|
122 | { |
---|
123 | // Ignore SIGPIPE. **Is this needed? ** |
---|
124 | signal(SIGPIPE, SIG_IGN); |
---|
125 | initService(); |
---|
126 | InitLog(); |
---|
127 | |
---|
128 | TRACE("Starting VTKVis Server"); |
---|
129 | |
---|
130 | g_fIn = stdin; |
---|
131 | g_fOut = stdout; |
---|
132 | g_fdIn = fileno(stdin); |
---|
133 | g_fdOut = fileno(stdout); |
---|
134 | |
---|
135 | g_renderer = new Renderer(); |
---|
136 | vtkSmartPointer<vtkUnsignedCharArray> imgData = |
---|
137 | vtkSmartPointer<vtkUnsignedCharArray>::New(); |
---|
138 | |
---|
139 | Tcl_Interp *interp = initTcl(); |
---|
140 | |
---|
141 | int ret = 0; |
---|
142 | |
---|
143 | while (1) { |
---|
144 | ret = processCommands(interp, g_fIn, g_fOut); |
---|
145 | if (ret < 0) |
---|
146 | break; |
---|
147 | |
---|
148 | if (g_renderer->render()) { |
---|
149 | TRACE("Rendering new frame"); |
---|
150 | g_renderer->getRenderedFrame(imgData); |
---|
151 | writeFrame(g_fdOut, imgData); |
---|
152 | } else { |
---|
153 | TRACE("No render required"); |
---|
154 | } |
---|
155 | |
---|
156 | if (feof(g_fIn)) |
---|
157 | break; |
---|
158 | } |
---|
159 | |
---|
160 | delete g_renderer; |
---|
161 | |
---|
162 | TRACE("Exiting VTKVis Server"); |
---|
163 | |
---|
164 | CloseLog(); |
---|
165 | exitService(); |
---|
166 | |
---|
167 | return ret; |
---|
168 | } |
---|
169 | |
---|