1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * ---------------------------------------------------------------------- |
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4 | * Nanovis: Visualization of Nanoelectronics Data |
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5 | * |
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6 | * ====================================================================== |
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7 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
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8 | * Michael McLennan <mmclennan@purdue.edu> |
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9 | * Purdue Rendering and Perceptualization Lab (PURPL) |
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10 | * |
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11 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
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12 | * |
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13 | * See the file "license.terms" for information on usage and |
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14 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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15 | * ====================================================================== |
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16 | */ |
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17 | |
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18 | #include <assert.h> |
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19 | #include <errno.h> |
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20 | #include <fcntl.h> |
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21 | #include <getopt.h> |
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22 | #include <memory.h> |
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23 | #include <signal.h> |
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24 | #include <sys/resource.h> |
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25 | #include <sys/stat.h> |
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26 | #include <sys/time.h> |
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27 | #include <sys/times.h> |
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28 | #include <sys/types.h> |
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29 | #include <sys/uio.h> // for readv/writev |
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30 | #include <time.h> |
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31 | #include <unistd.h> |
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32 | |
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33 | #include <cstdlib> |
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34 | #include <cstdio> |
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35 | #include <cstring> |
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36 | #include <cmath> |
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37 | |
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38 | #include <iostream> |
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39 | #include <fstream> |
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40 | #include <sstream> |
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41 | #include <string> |
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42 | |
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43 | #include <GL/glew.h> |
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44 | #include <GL/glut.h> |
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45 | |
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46 | #include <RpEncode.h> |
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47 | |
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48 | #include <graphics/RenderContext.h> |
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49 | #include <vrmath/Vector3f.h> |
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50 | |
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51 | #include <util/FilePath.h> |
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52 | #include <util/Fonts.h> |
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53 | |
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54 | #include <BMPImageLoaderImpl.h> |
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55 | #include <ImageLoaderFactory.h> |
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56 | |
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57 | #include "config.h" |
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58 | #include "nanovis.h" |
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59 | #include "define.h" |
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60 | |
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61 | #include "Command.h" |
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62 | #include "Flow.h" |
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63 | #include "Grid.h" |
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64 | #include "HeightMap.h" |
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65 | #include "NvCamera.h" |
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66 | #include "NvShader.h" |
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67 | #include "NvLIC.h" |
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68 | #include "NvZincBlendeReconstructor.h" |
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69 | #include "PlaneRenderer.h" |
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70 | #ifdef USE_POINTSET_RENDERER |
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71 | #include "PointSetRenderer.h" |
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72 | #include "PointSet.h" |
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73 | #endif |
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74 | #include "Switch.h" |
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75 | #include "Trace.h" |
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76 | #include "Unirect.h" |
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77 | #include "VelocityArrowsSlice.h" |
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78 | #include "VolumeInterpolator.h" |
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79 | #include "VolumeRenderer.h" |
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80 | #include "ZincBlendeVolume.h" |
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81 | |
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82 | using namespace nv::graphics; |
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83 | using namespace nv::util; |
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84 | using namespace vrmath; |
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85 | |
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86 | #define SIZEOF_BMP_HEADER 54 |
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87 | |
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88 | #define CVT2SECS(x) ((double)(x).tv_sec) + ((double)(x).tv_usec * 1.0e-6) |
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89 | |
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90 | #define TRUE 1 |
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91 | #define FALSE 0 |
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92 | |
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93 | typedef struct { |
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94 | pid_t pid; |
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95 | size_t nFrames; /**< # of frames sent to client. */ |
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96 | size_t nBytes; /**< # of bytes for all frames. */ |
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97 | size_t nCommands; /**< # of commands executed */ |
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98 | double cmdTime; /**< Elasped time spend executing |
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99 | * commands. */ |
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100 | struct timeval start; /**< Start of elapsed time. */ |
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101 | } Stats; |
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102 | |
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103 | static Stats stats; |
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104 | |
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105 | // STATIC MEMBER DATA |
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106 | |
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107 | FILE *NanoVis::stdin = NULL; |
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108 | FILE *NanoVis::logfile = NULL; |
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109 | FILE *NanoVis::recfile = NULL; |
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110 | |
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111 | int NanoVis::statsFile = -1; |
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112 | |
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113 | unsigned int NanoVis::flags = 0; |
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114 | bool NanoVis::debugFlag = false; |
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115 | bool NanoVis::axisOn = true; |
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116 | struct timeval NanoVis::startTime; |
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117 | |
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118 | int NanoVis::winWidth = NPIX; |
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119 | int NanoVis::winHeight = NPIX; |
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120 | int NanoVis::renderWindow = 0; |
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121 | unsigned char *NanoVis::screenBuffer = NULL; |
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122 | Texture2D *NanoVis::legendTexture = NULL; |
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123 | Grid *NanoVis::grid = NULL; |
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124 | Fonts *NanoVis::fonts; |
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125 | int NanoVis::updir = Y_POS; |
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126 | NvCamera *NanoVis::cam = NULL; |
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127 | RenderContext *NanoVis::renderContext = NULL; |
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128 | |
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129 | NanoVis::TransferFunctionHashmap NanoVis::tfTable; |
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130 | NanoVis::VolumeHashmap NanoVis::volumeTable; |
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131 | NanoVis::FlowHashmap NanoVis::flowTable; |
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132 | NanoVis::HeightMapHashmap NanoVis::heightMapTable; |
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133 | |
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134 | double NanoVis::magMin = DBL_MAX; |
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135 | double NanoVis::magMax = -DBL_MAX; |
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136 | float NanoVis::xMin = FLT_MAX; |
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137 | float NanoVis::xMax = -FLT_MAX; |
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138 | float NanoVis::yMin = FLT_MAX; |
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139 | float NanoVis::yMax = -FLT_MAX; |
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140 | float NanoVis::zMin = FLT_MAX; |
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141 | float NanoVis::zMax = -FLT_MAX; |
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142 | float NanoVis::wMin = FLT_MAX; |
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143 | float NanoVis::wMax = -FLT_MAX; |
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144 | Vector3f NanoVis::sceneMin, NanoVis::sceneMax; |
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145 | |
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146 | VolumeRenderer *NanoVis::volRenderer = NULL; |
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147 | VelocityArrowsSlice *NanoVis::velocityArrowsSlice = NULL; |
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148 | NvLIC *NanoVis::licRenderer = NULL; |
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149 | PlaneRenderer *NanoVis::planeRenderer = NULL; |
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150 | #ifdef USE_POINTSET_RENDERER |
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151 | PointSetRenderer *NanoVis::pointSetRenderer = NULL; |
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152 | std::vector<PointSet *> NanoVis::pointSet; |
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153 | #endif |
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154 | |
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155 | Tcl_Interp *NanoVis::interp; |
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156 | |
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157 | // Image based flow visualization slice location |
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158 | // FLOW |
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159 | float NanoVis::_licSlice = 0.5f; |
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160 | int NanoVis::_licAxis = 2; // z axis |
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161 | |
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162 | //frame buffer for final rendering |
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163 | GLuint NanoVis::_finalFbo = 0; |
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164 | GLuint NanoVis::_finalColorTex = 0; |
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165 | GLuint NanoVis::_finalDepthRb = 0; |
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166 | |
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167 | // Default camera location. |
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168 | float def_eye_x = 0.0f; |
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169 | float def_eye_y = 0.0f; |
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170 | float def_eye_z = 2.5f; |
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171 | |
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172 | void |
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173 | NanoVis::removeAllData() |
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174 | { |
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175 | TRACE("Enter"); |
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176 | if (grid != NULL) { |
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177 | TRACE("Deleting grid"); |
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178 | delete grid; |
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179 | } |
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180 | if (cam != NULL) { |
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181 | TRACE("Deleting cam"); |
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182 | delete cam; |
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183 | } |
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184 | if (volRenderer != NULL) { |
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185 | TRACE("Deleting volRenderer"); |
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186 | delete volRenderer; |
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187 | } |
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188 | if (planeRenderer != NULL) { |
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189 | TRACE("Deleting planeRenderer"); |
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190 | delete planeRenderer; |
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191 | } |
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192 | if (legendTexture != NULL) { |
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193 | TRACE("Deleting legendTexture"); |
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194 | delete legendTexture; |
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195 | } |
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196 | TRACE("Deleting flows"); |
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197 | deleteFlows(interp); |
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198 | if (licRenderer != NULL) { |
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199 | TRACE("Deleting licRenderer"); |
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200 | delete licRenderer; |
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201 | } |
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202 | if (velocityArrowsSlice != NULL) { |
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203 | TRACE("Deleting velocityArrowsSlice"); |
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204 | delete velocityArrowsSlice; |
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205 | } |
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206 | if (renderContext != NULL) { |
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207 | TRACE("Deleting renderContext"); |
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208 | delete renderContext; |
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209 | } |
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210 | if (screenBuffer != NULL) { |
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211 | TRACE("Deleting screenBuffer"); |
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212 | delete [] screenBuffer; |
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213 | screenBuffer = NULL; |
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214 | } |
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215 | #ifdef USE_POINTSET_RENDERER |
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216 | if (pointSetRenderer != NULL) { |
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217 | TRACE("Deleting pointSetRenderer"); |
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218 | delete pointSetRenderer; |
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219 | } |
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220 | for (std::vector<PointSet *>::iterator itr = pointSet.begin(); |
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221 | itr != pointSet.end(); ++itr) { |
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222 | TRACE("Deleting pointSet: %p", *itr); |
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223 | delete (*itr); |
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224 | } |
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225 | #endif |
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226 | if (fonts != NULL) { |
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227 | TRACE("Deleting fonts"); |
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228 | delete fonts; |
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229 | } |
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230 | TRACE("Leave"); |
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231 | } |
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232 | |
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233 | void |
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234 | NanoVis::eventuallyRedraw(unsigned int flag) |
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235 | { |
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236 | if (flag) { |
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237 | flags |= flag; |
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238 | } |
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239 | if ((flags & REDRAW_PENDING) == 0) { |
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240 | glutPostRedisplay(); |
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241 | flags |= REDRAW_PENDING; |
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242 | } |
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243 | } |
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244 | |
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245 | #ifdef KEEPSTATS |
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246 | |
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247 | #ifndef STATSDIR |
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248 | #define STATSDIR "/var/tmp/visservers" |
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249 | #endif /*STATSDIR*/ |
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250 | |
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251 | int |
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252 | NanoVis::getStatsFile(Tcl_Obj *objPtr) |
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253 | { |
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254 | Tcl_DString ds; |
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255 | Tcl_Obj **objv; |
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256 | int objc; |
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257 | int i; |
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258 | char fileName[33]; |
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259 | const char *path; |
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260 | md5_state_t state; |
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261 | md5_byte_t digest[16]; |
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262 | char *string; |
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263 | int length; |
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264 | |
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265 | if ((objPtr == NULL) || (statsFile >= 0)) { |
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266 | return statsFile; |
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267 | } |
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268 | if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { |
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269 | return -1; |
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270 | } |
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271 | Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("pid", 3)); |
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272 | Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewIntObj(getpid())); |
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273 | string = Tcl_GetStringFromObj(objPtr, &length); |
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274 | |
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275 | md5_init(&state); |
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276 | md5_append(&state, (const md5_byte_t *)string, length); |
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277 | md5_finish(&state, digest); |
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278 | for (i = 0; i < 16; i++) { |
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279 | sprintf(fileName + i * 2, "%02x", digest[i]); |
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280 | } |
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281 | Tcl_DStringInit(&ds); |
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282 | Tcl_DStringAppend(&ds, STATSDIR, -1); |
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283 | Tcl_DStringAppend(&ds, "/", 1); |
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284 | Tcl_DStringAppend(&ds, fileName, 32); |
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285 | path = Tcl_DStringValue(&ds); |
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286 | |
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287 | statsFile = open(path, O_EXCL | O_CREAT | O_WRONLY, 0600); |
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288 | Tcl_DStringFree(&ds); |
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289 | if (statsFile < 0) { |
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290 | ERROR("can't open \"%s\": %s", fileName, strerror(errno)); |
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291 | return -1; |
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292 | } |
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293 | return statsFile; |
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294 | } |
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295 | |
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296 | int |
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297 | NanoVis::writeToStatsFile(int f, const char *s, size_t length) |
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298 | { |
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299 | if (f >= 0) { |
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300 | ssize_t numWritten; |
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301 | |
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302 | numWritten = write(f, s, length); |
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303 | if (numWritten == (ssize_t)length) { |
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304 | close(dup(f)); |
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305 | } |
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306 | } |
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307 | return 0; |
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308 | } |
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309 | |
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310 | static int |
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311 | serverStats(int code) |
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312 | { |
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313 | double start, finish; |
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314 | char buf[BUFSIZ]; |
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315 | Tcl_DString ds; |
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316 | int result; |
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317 | int f; |
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318 | |
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319 | { |
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320 | struct timeval tv; |
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321 | |
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322 | /* Get ending time. */ |
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323 | gettimeofday(&tv, NULL); |
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324 | finish = CVT2SECS(tv); |
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325 | tv = stats.start; |
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326 | start = CVT2SECS(tv); |
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327 | } |
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328 | /* |
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329 | * Session information: |
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330 | * - Name of render server |
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331 | * - Process ID |
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332 | * - Hostname where server is running |
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333 | * - Start date of session |
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334 | * - Start date of session in seconds |
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335 | * - Number of frames returned |
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336 | * - Number of bytes total returned (in frames) |
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337 | * - Number of commands received |
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338 | * - Total elapsed time of all commands |
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339 | * - Total elapsed time of session |
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340 | * - Exit code of vizserver |
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341 | * - User time |
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342 | * - System time |
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343 | * - User time of children |
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344 | * - System time of children |
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345 | */ |
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346 | |
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347 | Tcl_DStringInit(&ds); |
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348 | |
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349 | Tcl_DStringAppendElement(&ds, "render_stop"); |
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350 | /* renderer */ |
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351 | Tcl_DStringAppendElement(&ds, "renderer"); |
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352 | Tcl_DStringAppendElement(&ds, "nanovis"); |
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353 | /* pid */ |
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354 | Tcl_DStringAppendElement(&ds, "pid"); |
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355 | sprintf(buf, "%d", getpid()); |
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356 | Tcl_DStringAppendElement(&ds, buf); |
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357 | /* host */ |
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358 | Tcl_DStringAppendElement(&ds, "host"); |
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359 | gethostname(buf, BUFSIZ-1); |
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360 | buf[BUFSIZ-1] = '\0'; |
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361 | Tcl_DStringAppendElement(&ds, buf); |
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362 | /* date */ |
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363 | Tcl_DStringAppendElement(&ds, "date"); |
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364 | strcpy(buf, ctime(&stats.start.tv_sec)); |
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365 | buf[strlen(buf) - 1] = '\0'; |
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366 | Tcl_DStringAppendElement(&ds, buf); |
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367 | /* date_secs */ |
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368 | Tcl_DStringAppendElement(&ds, "date_secs"); |
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369 | sprintf(buf, "%ld", stats.start.tv_sec); |
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370 | Tcl_DStringAppendElement(&ds, buf); |
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371 | /* num_frames */ |
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372 | Tcl_DStringAppendElement(&ds, "num_frames"); |
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373 | sprintf(buf, "%lu", (unsigned long int)stats.nFrames); |
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374 | Tcl_DStringAppendElement(&ds, buf); |
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375 | /* frame_bytes */ |
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376 | Tcl_DStringAppendElement(&ds, "frame_bytes"); |
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377 | sprintf(buf, "%lu", (unsigned long int)stats.nBytes); |
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378 | Tcl_DStringAppendElement(&ds, buf); |
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379 | /* num_commands */ |
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380 | Tcl_DStringAppendElement(&ds, "num_commands"); |
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381 | sprintf(buf, "%lu", (unsigned long int)stats.nCommands); |
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382 | Tcl_DStringAppendElement(&ds, buf); |
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383 | /* cmd_time */ |
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384 | Tcl_DStringAppendElement(&ds, "cmd_time"); |
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385 | sprintf(buf, "%g", stats.cmdTime); |
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386 | Tcl_DStringAppendElement(&ds, buf); |
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387 | /* session_time */ |
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388 | Tcl_DStringAppendElement(&ds, "session_time"); |
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389 | sprintf(buf, "%g", finish - start); |
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390 | Tcl_DStringAppendElement(&ds, buf); |
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391 | /* status */ |
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392 | Tcl_DStringAppendElement(&ds, "status"); |
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393 | sprintf(buf, "%d", code); |
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394 | Tcl_DStringAppendElement(&ds, buf); |
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395 | { |
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396 | long clocksPerSec = sysconf(_SC_CLK_TCK); |
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397 | double clockRes = 1.0 / clocksPerSec; |
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398 | struct tms tms; |
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399 | |
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400 | memset(&tms, 0, sizeof(tms)); |
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401 | times(&tms); |
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402 | /* utime */ |
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403 | Tcl_DStringAppendElement(&ds, "utime"); |
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404 | sprintf(buf, "%g", tms.tms_utime * clockRes); |
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405 | Tcl_DStringAppendElement(&ds, buf); |
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406 | /* stime */ |
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407 | Tcl_DStringAppendElement(&ds, "stime"); |
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408 | sprintf(buf, "%g", tms.tms_stime * clockRes); |
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409 | Tcl_DStringAppendElement(&ds, buf); |
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410 | /* cutime */ |
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411 | Tcl_DStringAppendElement(&ds, "cutime"); |
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412 | sprintf(buf, "%g", tms.tms_cutime * clockRes); |
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413 | Tcl_DStringAppendElement(&ds, buf); |
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414 | /* cstime */ |
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415 | Tcl_DStringAppendElement(&ds, "cstime"); |
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416 | sprintf(buf, "%g", tms.tms_cstime * clockRes); |
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417 | Tcl_DStringAppendElement(&ds, buf); |
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418 | } |
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419 | Tcl_DStringAppend(&ds, "\n", -1); |
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420 | f = NanoVis::getStatsFile(NULL); |
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421 | result = NanoVis::writeToStatsFile(f, Tcl_DStringValue(&ds), |
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422 | Tcl_DStringLength(&ds)); |
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423 | close(f); |
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424 | Tcl_DStringFree(&ds); |
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425 | return result; |
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426 | } |
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427 | |
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428 | #endif |
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429 | |
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430 | static void |
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431 | initService() |
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432 | { |
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433 | TRACE("Enter"); |
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434 | |
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435 | const char* user = getenv("USER"); |
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436 | char* logName = NULL; |
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437 | int logNameLen = 0; |
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438 | |
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439 | if (user == NULL) { |
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440 | logNameLen = 20+1; |
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441 | logName = (char *)calloc(logNameLen, sizeof(char)); |
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442 | strncpy(logName, "/tmp/nanovis_log.txt", logNameLen); |
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443 | } else { |
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444 | logNameLen = 17+1+strlen(user); |
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445 | logName = (char *)calloc(logNameLen, sizeof(char)); |
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446 | strncpy(logName, "/tmp/nanovis_log_", logNameLen); |
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447 | strncat(logName, user, strlen(user)); |
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448 | } |
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449 | |
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450 | //open log and map stderr to log file |
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451 | NanoVis::logfile = fopen(logName, "w"); |
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452 | dup2(fileno(NanoVis::logfile), 2); |
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453 | /* dup2(2,1); */ |
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454 | |
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455 | // clean up malloc'd memory |
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456 | if (logName != NULL) { |
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457 | free(logName); |
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458 | } |
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459 | |
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460 | TRACE("Leave"); |
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461 | } |
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462 | |
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463 | static void |
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464 | exitService(int code) |
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465 | { |
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466 | TRACE("Enter: %d", code); |
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467 | |
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468 | NanoVis::removeAllData(); |
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469 | |
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470 | NvShader::exitCg(); |
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471 | |
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472 | //close log file |
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473 | if (NanoVis::logfile != NULL) { |
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474 | fclose(NanoVis::logfile); |
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475 | NanoVis::logfile = NULL; |
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476 | } |
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477 | |
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478 | #ifdef KEEPSTATS |
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479 | serverStats(code); |
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480 | #endif |
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481 | closelog(); |
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482 | |
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483 | exit(code); |
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484 | } |
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485 | |
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486 | static int |
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487 | executeCommand(Tcl_Interp *interp, Tcl_DString *dsPtr) |
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488 | { |
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489 | struct timeval tv; |
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490 | double start, finish; |
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491 | int result; |
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492 | |
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493 | #ifdef WANT_TRACE |
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494 | char *str = Tcl_DStringValue(dsPtr); |
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495 | std::string cmd(str); |
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496 | cmd.erase(cmd.find_last_not_of(" \n\r\t")+1); |
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497 | TRACE("command %lu: '%s'", stats.nCommands+1, cmd.c_str()); |
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498 | #endif |
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499 | |
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500 | gettimeofday(&tv, NULL); |
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501 | start = CVT2SECS(tv); |
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502 | |
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503 | if (NanoVis::recfile != NULL) { |
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504 | fprintf(NanoVis::recfile, "%s", Tcl_DStringValue(dsPtr)); |
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505 | fflush(NanoVis::recfile); |
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506 | } |
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507 | result = Tcl_Eval(interp, Tcl_DStringValue(dsPtr)); |
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508 | Tcl_DStringSetLength(dsPtr, 0); |
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509 | |
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510 | gettimeofday(&tv, NULL); |
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511 | finish = CVT2SECS(tv); |
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512 | |
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513 | stats.cmdTime += finish - start; |
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514 | stats.nCommands++; |
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515 | TRACE("Leave status=%d", result); |
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516 | return result; |
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517 | } |
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518 | |
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519 | void |
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520 | NanoVis::pan(float dx, float dy) |
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521 | { |
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522 | /* Move the camera and its target by equal amounts along the x and y |
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523 | * axes. */ |
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524 | TRACE("pan: x=%f, y=%f", dx, dy); |
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525 | |
---|
526 | cam->x(def_eye_x - dx); |
---|
527 | cam->y(def_eye_y + dy); |
---|
528 | TRACE("set eye to %f %f", cam->x(), cam->y()); |
---|
529 | } |
---|
530 | |
---|
531 | void |
---|
532 | NanoVis::zoom(float z) |
---|
533 | { |
---|
534 | /* Move the camera and its target by equal amounts along the x and y |
---|
535 | * axes. */ |
---|
536 | TRACE("zoom: z=%f", z); |
---|
537 | |
---|
538 | cam->z(def_eye_z / z); |
---|
539 | |
---|
540 | collectBounds(); |
---|
541 | cam->resetClippingRange(sceneMin, sceneMax); |
---|
542 | |
---|
543 | TRACE("set cam z to %f", cam->z()); |
---|
544 | } |
---|
545 | |
---|
546 | void |
---|
547 | NanoVis::resetCamera(bool resetOrientation) |
---|
548 | { |
---|
549 | TRACE("Resetting all=%d", resetOrientation ? 1 : 0); |
---|
550 | |
---|
551 | collectBounds(); |
---|
552 | cam->reset(sceneMin, sceneMax, resetOrientation); |
---|
553 | |
---|
554 | def_eye_x = cam->x(); |
---|
555 | def_eye_y = cam->y(); |
---|
556 | def_eye_z = cam->z(); |
---|
557 | } |
---|
558 | |
---|
559 | /** \brief Load a 3D volume |
---|
560 | * |
---|
561 | * \param name Volume ID |
---|
562 | * \param width Number of samples in X direction |
---|
563 | * \param height Number of samples in Y direction |
---|
564 | * \param depth Number of samples in Z direction |
---|
565 | * \param numComponents the number of scalars for each space point. All component |
---|
566 | * scalars for a point are placed consequtively in data array |
---|
567 | * width, height and depth: number of points in each dimension |
---|
568 | * \param data Array of floats |
---|
569 | * \param vmin Min value of field |
---|
570 | * \param vmax Max value of field |
---|
571 | * \param nonZeroMin Minimum non-zero value of field |
---|
572 | * \param data pointer to an array of floats. |
---|
573 | */ |
---|
574 | Volume * |
---|
575 | NanoVis::loadVolume(const char *name, int width, int height, int depth, |
---|
576 | int numComponents, float *data, double vmin, double vmax, |
---|
577 | double nonZeroMin) |
---|
578 | { |
---|
579 | VolumeHashmap::iterator itr = volumeTable.find(name); |
---|
580 | if (itr != volumeTable.end()) { |
---|
581 | WARN("volume \"%s\" already exists", name); |
---|
582 | removeVolume(itr->second); |
---|
583 | } |
---|
584 | |
---|
585 | Volume *volume = new Volume(0.f, 0.f, 0.f, |
---|
586 | width, height, depth, |
---|
587 | numComponents, |
---|
588 | data, vmin, vmax, nonZeroMin); |
---|
589 | Volume::updatePending = true; |
---|
590 | volume->name(name); |
---|
591 | volumeTable[name] = volume; |
---|
592 | |
---|
593 | return volume; |
---|
594 | } |
---|
595 | |
---|
596 | // Gets a colormap 1D texture by name. |
---|
597 | TransferFunction * |
---|
598 | NanoVis::getTransferFunction(const TransferFunctionId& id) |
---|
599 | { |
---|
600 | TransferFunctionHashmap::iterator itr = tfTable.find(id); |
---|
601 | if (itr == tfTable.end()) { |
---|
602 | TRACE("No transfer function named \"%s\" found", id.c_str()); |
---|
603 | return NULL; |
---|
604 | } else { |
---|
605 | return itr->second; |
---|
606 | } |
---|
607 | } |
---|
608 | |
---|
609 | // Creates of updates a colormap 1D texture by name. |
---|
610 | TransferFunction * |
---|
611 | NanoVis::defineTransferFunction(const TransferFunctionId& id, |
---|
612 | size_t n, float *data) |
---|
613 | { |
---|
614 | TransferFunction *tf = getTransferFunction(id); |
---|
615 | if (tf == NULL) { |
---|
616 | TRACE("Creating new transfer function \"%s\"", id.c_str()); |
---|
617 | tf = new TransferFunction(id.c_str(), n, data); |
---|
618 | tfTable[id] = tf; |
---|
619 | } else { |
---|
620 | TRACE("Updating existing transfer function \"%s\"", id.c_str()); |
---|
621 | tf->update(n, data); |
---|
622 | } |
---|
623 | return tf; |
---|
624 | } |
---|
625 | |
---|
626 | int |
---|
627 | NanoVis::renderLegend(TransferFunction *tf, double min, double max, |
---|
628 | int width, int height, const char *volArg) |
---|
629 | { |
---|
630 | TRACE("Enter"); |
---|
631 | |
---|
632 | int old_width = winWidth; |
---|
633 | int old_height = winHeight; |
---|
634 | |
---|
635 | planeRenderer->setScreenSize(width, height); |
---|
636 | resizeOffscreenBuffer(width, height); |
---|
637 | |
---|
638 | // generate data for the legend |
---|
639 | float data[512]; |
---|
640 | for (int i=0; i < 256; i++) { |
---|
641 | data[i] = data[i+256] = (float)(i/255.0); |
---|
642 | } |
---|
643 | legendTexture = new Texture2D(256, 2, GL_FLOAT, GL_LINEAR, 1, data); |
---|
644 | int index = planeRenderer->addPlane(legendTexture, tf); |
---|
645 | planeRenderer->setActivePlane(index); |
---|
646 | |
---|
647 | bindOffscreenBuffer(); |
---|
648 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //clear screen |
---|
649 | planeRenderer->render(); |
---|
650 | |
---|
651 | // INSOO |
---|
652 | glReadPixels(0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, screenBuffer); |
---|
653 | //glReadPixels(0, 0, width, height, GL_BGR, GL_UNSIGNED_BYTE, screenBuffer); // INSOO's |
---|
654 | |
---|
655 | { |
---|
656 | char prefix[200]; |
---|
657 | ssize_t nWritten; |
---|
658 | |
---|
659 | TRACE("Sending ppm legend image %s min:%g max:%g", volArg, min, max); |
---|
660 | sprintf(prefix, "nv>legend %s %g %g", volArg, min, max); |
---|
661 | ppmWrite(prefix); |
---|
662 | nWritten = write(1, "\n", 1); |
---|
663 | assert(nWritten == 1); |
---|
664 | } |
---|
665 | planeRenderer->removePlane(index); |
---|
666 | resizeOffscreenBuffer(old_width, old_height); |
---|
667 | |
---|
668 | delete legendTexture; |
---|
669 | legendTexture = NULL; |
---|
670 | TRACE("Leave"); |
---|
671 | return TCL_OK; |
---|
672 | } |
---|
673 | |
---|
674 | //initialize frame buffer objects for offscreen rendering |
---|
675 | void |
---|
676 | NanoVis::initOffscreenBuffer() |
---|
677 | { |
---|
678 | TRACE("Enter"); |
---|
679 | assert(_finalFbo == 0); |
---|
680 | // Initialize a fbo for final display. |
---|
681 | glGenFramebuffersEXT(1, &_finalFbo); |
---|
682 | |
---|
683 | glGenTextures(1, &_finalColorTex); |
---|
684 | glBindTexture(GL_TEXTURE_2D, _finalColorTex); |
---|
685 | |
---|
686 | glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
---|
687 | glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
---|
688 | glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); |
---|
689 | |
---|
690 | #if defined(HAVE_FLOAT_TEXTURES) && defined(USE_HALF_FLOAT) |
---|
691 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, winWidth, winHeight, 0, |
---|
692 | GL_RGB, GL_INT, NULL); |
---|
693 | #elif defined(HAVE_FLOAT_TEXTURES) |
---|
694 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F_ARB, winWidth, winHeight, 0, |
---|
695 | GL_RGB, GL_INT, NULL); |
---|
696 | #else |
---|
697 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, winWidth, winHeight, 0, |
---|
698 | GL_RGB, GL_INT, NULL); |
---|
699 | #endif |
---|
700 | |
---|
701 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _finalFbo); |
---|
702 | glGenRenderbuffersEXT(1, &_finalDepthRb); |
---|
703 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
704 | glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24, |
---|
705 | winWidth, winHeight); |
---|
706 | glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, |
---|
707 | GL_TEXTURE_2D, _finalColorTex, 0); |
---|
708 | glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, |
---|
709 | GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
710 | |
---|
711 | GLenum status; |
---|
712 | if (!CheckFBO(&status)) { |
---|
713 | PrintFBOStatus(status, "finalFbo"); |
---|
714 | exitService(3); |
---|
715 | } |
---|
716 | |
---|
717 | TRACE("Leave"); |
---|
718 | } |
---|
719 | |
---|
720 | //resize the offscreen buffer |
---|
721 | void |
---|
722 | NanoVis::resizeOffscreenBuffer(int w, int h) |
---|
723 | { |
---|
724 | TRACE("Enter (%d, %d)", w, h); |
---|
725 | if ((w == winWidth) && (h == winHeight)) { |
---|
726 | return; |
---|
727 | } |
---|
728 | winWidth = w; |
---|
729 | winHeight = h; |
---|
730 | |
---|
731 | if (fonts) { |
---|
732 | fonts->resize(w, h); |
---|
733 | } |
---|
734 | TRACE("screenBuffer size: %d %d", w, h); |
---|
735 | |
---|
736 | if (screenBuffer != NULL) { |
---|
737 | delete [] screenBuffer; |
---|
738 | screenBuffer = NULL; |
---|
739 | } |
---|
740 | |
---|
741 | screenBuffer = new unsigned char[4*winWidth*winHeight]; |
---|
742 | assert(screenBuffer != NULL); |
---|
743 | |
---|
744 | //delete the current render buffer resources |
---|
745 | glDeleteTextures(1, &_finalColorTex); |
---|
746 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
747 | glDeleteRenderbuffersEXT(1, &_finalDepthRb); |
---|
748 | |
---|
749 | TRACE("before deleteframebuffers"); |
---|
750 | glDeleteFramebuffersEXT(1, &_finalFbo); |
---|
751 | |
---|
752 | TRACE("reinitialize FBO"); |
---|
753 | //Reinitialize final fbo for final display |
---|
754 | glGenFramebuffersEXT(1, &_finalFbo); |
---|
755 | |
---|
756 | glGenTextures(1, &_finalColorTex); |
---|
757 | glBindTexture(GL_TEXTURE_2D, _finalColorTex); |
---|
758 | |
---|
759 | glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
---|
760 | glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
---|
761 | glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); |
---|
762 | |
---|
763 | #if defined(HAVE_FLOAT_TEXTURES) && defined(USE_HALF_FLOAT) |
---|
764 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, winWidth, winHeight, 0, |
---|
765 | GL_RGB, GL_INT, NULL); |
---|
766 | #elif defined(HAVE_FLOAT_TEXTURES) |
---|
767 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F_ARB, winWidth, winHeight, 0, |
---|
768 | GL_RGB, GL_INT, NULL); |
---|
769 | #else |
---|
770 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, winWidth, winHeight, 0, |
---|
771 | GL_RGB, GL_INT, NULL); |
---|
772 | #endif |
---|
773 | |
---|
774 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _finalFbo); |
---|
775 | glGenRenderbuffersEXT(1, &_finalDepthRb); |
---|
776 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
777 | glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24, |
---|
778 | winWidth, winHeight); |
---|
779 | glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, |
---|
780 | GL_TEXTURE_2D, _finalColorTex, 0); |
---|
781 | glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, |
---|
782 | GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
783 | |
---|
784 | GLenum status; |
---|
785 | if (!CheckFBO(&status)) { |
---|
786 | PrintFBOStatus(status, "finalFbo"); |
---|
787 | exitService(3); |
---|
788 | } |
---|
789 | |
---|
790 | TRACE("change camera"); |
---|
791 | //change the camera setting |
---|
792 | cam->setScreenSize(0, 0, winWidth, winHeight); |
---|
793 | planeRenderer->setScreenSize(winWidth, winHeight); |
---|
794 | |
---|
795 | TRACE("Leave (%d, %d)", w, h); |
---|
796 | } |
---|
797 | |
---|
798 | static |
---|
799 | void cgErrorCallback(void) |
---|
800 | { |
---|
801 | if (!NvShader::printErrorInfo()) { |
---|
802 | TRACE("Cg error, exiting..."); |
---|
803 | exitService(-1); |
---|
804 | } |
---|
805 | } |
---|
806 | |
---|
807 | void NanoVis::init(const char* path) |
---|
808 | { |
---|
809 | // print OpenGL driver information |
---|
810 | TRACE("-----------------------------------------------------------"); |
---|
811 | TRACE("OpenGL version: %s", glGetString(GL_VERSION)); |
---|
812 | TRACE("OpenGL vendor: %s", glGetString(GL_VENDOR)); |
---|
813 | TRACE("OpenGL renderer: %s", glGetString(GL_RENDERER)); |
---|
814 | TRACE("-----------------------------------------------------------"); |
---|
815 | |
---|
816 | if (path == NULL) { |
---|
817 | ERROR("No path defined for shaders or resources"); |
---|
818 | exitService(1); |
---|
819 | } |
---|
820 | GLenum err = glewInit(); |
---|
821 | if (GLEW_OK != err) { |
---|
822 | ERROR("Can't init GLEW: %s", glewGetErrorString(err)); |
---|
823 | exitService(1); |
---|
824 | } |
---|
825 | TRACE("Using GLEW %s", glewGetString(GLEW_VERSION)); |
---|
826 | |
---|
827 | // OpenGL 2.1 includes VBOs, PBOs, MRT, NPOT textures, point parameters, point sprites, |
---|
828 | // GLSL 1.2, and occlusion queries. |
---|
829 | if (!GLEW_VERSION_2_1) { |
---|
830 | ERROR("OpenGL version 2.1 or greater is required"); |
---|
831 | exitService(1); |
---|
832 | } |
---|
833 | |
---|
834 | // NVIDIA driver may report OpenGL 2.1, but not support PBOs in |
---|
835 | // indirect GLX contexts |
---|
836 | if (!GLEW_ARB_pixel_buffer_object) { |
---|
837 | ERROR("Pixel buffer objects are not supported by driver, please check that the user running nanovis has permissions to create a direct rendering context (e.g. user has read/write access to /dev/nvidia* device nodes in Linux)."); |
---|
838 | exitService(1); |
---|
839 | } |
---|
840 | |
---|
841 | // Additional extensions not in 2.1 core |
---|
842 | |
---|
843 | // Framebuffer objects were promoted in 3.0 |
---|
844 | if (!GLEW_EXT_framebuffer_object) { |
---|
845 | ERROR("EXT_framebuffer_oject extension is required"); |
---|
846 | exitService(1); |
---|
847 | } |
---|
848 | // Rectangle textures were promoted in 3.1 |
---|
849 | // FIXME: can use NPOT in place of rectangle textures |
---|
850 | if (!GLEW_ARB_texture_rectangle) { |
---|
851 | ERROR("ARB_texture_rectangle extension is required"); |
---|
852 | exitService(1); |
---|
853 | } |
---|
854 | #ifdef HAVE_FLOAT_TEXTURES |
---|
855 | // Float color buffers and textures were promoted in 3.0 |
---|
856 | if (!GLEW_ARB_texture_float || |
---|
857 | !GLEW_ARB_color_buffer_float) { |
---|
858 | ERROR("ARB_texture_float and ARB_color_buffer_float extensions are required"); |
---|
859 | exitService(1); |
---|
860 | } |
---|
861 | #endif |
---|
862 | // FIXME: should use ARB programs or (preferably) a GLSL profile for portability |
---|
863 | if (!GLEW_NV_vertex_program3 || |
---|
864 | !GLEW_NV_fragment_program2) { |
---|
865 | ERROR("NV_vertex_program3 and NV_fragment_program2 extensions are required"); |
---|
866 | exitService(1); |
---|
867 | } |
---|
868 | |
---|
869 | if (!FilePath::getInstance()->setPath(path)) { |
---|
870 | ERROR("can't set file path to %s", path); |
---|
871 | exitService(1); |
---|
872 | } |
---|
873 | |
---|
874 | ImageLoaderFactory::getInstance()->addLoaderImpl("bmp", new BMPImageLoaderImpl()); |
---|
875 | |
---|
876 | NvShader::initCg(); |
---|
877 | NvShader::setErrorCallback(cgErrorCallback); |
---|
878 | |
---|
879 | fonts = new Fonts(); |
---|
880 | fonts->addFont("verdana", "verdana.fnt"); |
---|
881 | fonts->setFont("verdana"); |
---|
882 | |
---|
883 | velocityArrowsSlice = new VelocityArrowsSlice; |
---|
884 | licRenderer = new NvLIC(NMESH, NPIX, NPIX, _licAxis, _licSlice); |
---|
885 | |
---|
886 | grid = new Grid(); |
---|
887 | grid->setFont(fonts); |
---|
888 | |
---|
889 | #ifdef USE_POINTSET_RENDERER |
---|
890 | pointSetRenderer = new PointSetRenderer(); |
---|
891 | #endif |
---|
892 | } |
---|
893 | |
---|
894 | void |
---|
895 | NanoVis::initGL() |
---|
896 | { |
---|
897 | TRACE("in initGL"); |
---|
898 | //buffer to store data read from the screen |
---|
899 | if (screenBuffer) { |
---|
900 | delete[] screenBuffer; |
---|
901 | screenBuffer = NULL; |
---|
902 | } |
---|
903 | screenBuffer = new unsigned char[4*winWidth*winHeight]; |
---|
904 | assert(screenBuffer != NULL); |
---|
905 | |
---|
906 | //create the camera with default setting |
---|
907 | cam = new NvCamera(0, 0, winWidth, winHeight, |
---|
908 | def_eye_x, def_eye_y, def_eye_z); |
---|
909 | |
---|
910 | glEnable(GL_TEXTURE_2D); |
---|
911 | glShadeModel(GL_FLAT); |
---|
912 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
---|
913 | glClearColor(0, 0, 0, 1); |
---|
914 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
---|
915 | |
---|
916 | //initialize lighting |
---|
917 | GLfloat mat_specular[] = {1.0, 1.0, 1.0, 1.0}; |
---|
918 | GLfloat mat_shininess[] = {30.0}; |
---|
919 | GLfloat white_light[] = {1.0, 1.0, 1.0, 1.0}; |
---|
920 | GLfloat green_light[] = {0.1, 0.5, 0.1, 1.0}; |
---|
921 | |
---|
922 | glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); |
---|
923 | glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess); |
---|
924 | glLightfv(GL_LIGHT0, GL_DIFFUSE, white_light); |
---|
925 | glLightfv(GL_LIGHT0, GL_SPECULAR, white_light); |
---|
926 | glLightfv(GL_LIGHT1, GL_DIFFUSE, green_light); |
---|
927 | glLightfv(GL_LIGHT1, GL_SPECULAR, white_light); |
---|
928 | |
---|
929 | initOffscreenBuffer(); //frame buffer object for offscreen rendering |
---|
930 | |
---|
931 | //create volume renderer |
---|
932 | volRenderer = new VolumeRenderer(); |
---|
933 | |
---|
934 | // create |
---|
935 | renderContext = new RenderContext(); |
---|
936 | |
---|
937 | //create a 2D plane renderer |
---|
938 | planeRenderer = new PlaneRenderer(winWidth, winHeight); |
---|
939 | |
---|
940 | //assert(glGetError()==0); |
---|
941 | |
---|
942 | TRACE("leaving initGL"); |
---|
943 | } |
---|
944 | |
---|
945 | // used internally to build up the BMP file header |
---|
946 | // Writes an integer value into the header data structure at pos |
---|
947 | static inline void |
---|
948 | bmpHeaderAddInt(unsigned char* header, int& pos, int data) |
---|
949 | { |
---|
950 | #ifdef WORDS_BIGENDIAN |
---|
951 | header[pos++] = (data >> 24) & 0xFF; |
---|
952 | header[pos++] = (data >> 16) & 0xFF; |
---|
953 | header[pos++] = (data >> 8) & 0xFF; |
---|
954 | header[pos++] = (data) & 0xFF; |
---|
955 | #else |
---|
956 | header[pos++] = data & 0xff; |
---|
957 | header[pos++] = (data >> 8) & 0xff; |
---|
958 | header[pos++] = (data >> 16) & 0xff; |
---|
959 | header[pos++] = (data >> 24) & 0xff; |
---|
960 | #endif |
---|
961 | } |
---|
962 | |
---|
963 | // INSOO |
---|
964 | // FOR DEBUGGING |
---|
965 | void |
---|
966 | NanoVis::bmpWriteToFile(int frame_number, const char *directory_name) |
---|
967 | { |
---|
968 | unsigned char header[SIZEOF_BMP_HEADER]; |
---|
969 | int pos = 0; |
---|
970 | header[pos++] = 'B'; |
---|
971 | header[pos++] = 'M'; |
---|
972 | |
---|
973 | // BE CAREFUL: BMP files must have an even multiple of 4 bytes |
---|
974 | // on each scan line. If need be, we add padding to each line. |
---|
975 | int pad = 0; |
---|
976 | if ((3*winWidth) % 4 > 0) { |
---|
977 | pad = 4 - ((3*winWidth) % 4); |
---|
978 | } |
---|
979 | |
---|
980 | // file size in bytes |
---|
981 | int fsize = (3*winWidth+pad)*winHeight + SIZEOF_BMP_HEADER; |
---|
982 | bmpHeaderAddInt(header, pos, fsize); |
---|
983 | |
---|
984 | // reserved value (must be 0) |
---|
985 | bmpHeaderAddInt(header, pos, 0); |
---|
986 | |
---|
987 | // offset in bytes to start of bitmap data |
---|
988 | bmpHeaderAddInt(header, pos, SIZEOF_BMP_HEADER); |
---|
989 | |
---|
990 | // size of the BITMAPINFOHEADER |
---|
991 | bmpHeaderAddInt(header, pos, 40); |
---|
992 | |
---|
993 | // width of the image in pixels |
---|
994 | bmpHeaderAddInt(header, pos, winWidth); |
---|
995 | |
---|
996 | // height of the image in pixels |
---|
997 | bmpHeaderAddInt(header, pos, winHeight); |
---|
998 | |
---|
999 | // 1 plane + (24 bits/pixel << 16) |
---|
1000 | bmpHeaderAddInt(header, pos, 1572865); |
---|
1001 | |
---|
1002 | // no compression |
---|
1003 | // size of image for compression |
---|
1004 | bmpHeaderAddInt(header, pos, 0); |
---|
1005 | bmpHeaderAddInt(header, pos, 0); |
---|
1006 | |
---|
1007 | // x pixels per meter |
---|
1008 | // y pixels per meter |
---|
1009 | bmpHeaderAddInt(header, pos, 0); |
---|
1010 | bmpHeaderAddInt(header, pos, 0); |
---|
1011 | |
---|
1012 | // number of colors used (0 = compute from bits/pixel) |
---|
1013 | // number of important colors (0 = all colors important) |
---|
1014 | bmpHeaderAddInt(header, pos, 0); |
---|
1015 | bmpHeaderAddInt(header, pos, 0); |
---|
1016 | |
---|
1017 | // BE CAREFUL: BMP format wants BGR ordering for screen data |
---|
1018 | unsigned char* scr = screenBuffer; |
---|
1019 | for (int row=0; row < winHeight; row++) { |
---|
1020 | for (int col=0; col < winWidth; col++) { |
---|
1021 | unsigned char tmp = scr[2]; |
---|
1022 | scr[2] = scr[0]; // B |
---|
1023 | scr[0] = tmp; // R |
---|
1024 | scr += 3; |
---|
1025 | } |
---|
1026 | scr += pad; // skip over padding already in screen data |
---|
1027 | } |
---|
1028 | |
---|
1029 | FILE* f; |
---|
1030 | char filename[100]; |
---|
1031 | if (frame_number >= 0) { |
---|
1032 | if (directory_name) |
---|
1033 | sprintf(filename, "%s/image%03d.bmp", directory_name, frame_number); |
---|
1034 | else |
---|
1035 | sprintf(filename, "/tmp/flow_animation/image%03d.bmp", frame_number); |
---|
1036 | |
---|
1037 | TRACE("Writing %s", filename); |
---|
1038 | f = fopen(filename, "wb"); |
---|
1039 | if (f == 0) { |
---|
1040 | ERROR("cannot create file"); |
---|
1041 | } |
---|
1042 | } else { |
---|
1043 | f = fopen("/tmp/image.bmp", "wb"); |
---|
1044 | if (f == 0) { |
---|
1045 | ERROR("cannot create file"); |
---|
1046 | } |
---|
1047 | } |
---|
1048 | if (fwrite(header, SIZEOF_BMP_HEADER, 1, f) != 1) { |
---|
1049 | ERROR("can't write header: short write"); |
---|
1050 | } |
---|
1051 | if (fwrite(screenBuffer, (3*winWidth+pad)*winHeight, 1, f) != 1) { |
---|
1052 | ERROR("can't write data: short write"); |
---|
1053 | } |
---|
1054 | fclose(f); |
---|
1055 | } |
---|
1056 | |
---|
1057 | void |
---|
1058 | NanoVis::bmpWrite(const char *prefix) |
---|
1059 | { |
---|
1060 | unsigned char header[SIZEOF_BMP_HEADER]; |
---|
1061 | ssize_t nWritten; |
---|
1062 | int pos = 0; |
---|
1063 | |
---|
1064 | // BE CAREFUL: BMP files must have an even multiple of 4 bytes |
---|
1065 | // on each scan line. If need be, we add padding to each line. |
---|
1066 | int pad = 0; |
---|
1067 | if ((3*winWidth) % 4 > 0) { |
---|
1068 | pad = 4 - ((3*winWidth) % 4); |
---|
1069 | } |
---|
1070 | pad = 0; |
---|
1071 | int fsize = (3*winWidth+pad)*winHeight + sizeof(header); |
---|
1072 | |
---|
1073 | char string[200]; |
---|
1074 | sprintf(string, "%s %d\n", prefix, fsize); |
---|
1075 | nWritten = write(1, string, strlen(string)); |
---|
1076 | assert(nWritten == (ssize_t)strlen(string)); |
---|
1077 | header[pos++] = 'B'; |
---|
1078 | header[pos++] = 'M'; |
---|
1079 | |
---|
1080 | // file size in bytes |
---|
1081 | bmpHeaderAddInt(header, pos, fsize); |
---|
1082 | |
---|
1083 | // reserved value (must be 0) |
---|
1084 | bmpHeaderAddInt(header, pos, 0); |
---|
1085 | |
---|
1086 | // offset in bytes to start of bitmap data |
---|
1087 | bmpHeaderAddInt(header, pos, SIZEOF_BMP_HEADER); |
---|
1088 | |
---|
1089 | // size of the BITMAPINFOHEADER |
---|
1090 | bmpHeaderAddInt(header, pos, 40); |
---|
1091 | |
---|
1092 | // width of the image in pixels |
---|
1093 | bmpHeaderAddInt(header, pos, winWidth); |
---|
1094 | |
---|
1095 | // height of the image in pixels |
---|
1096 | bmpHeaderAddInt(header, pos, winHeight); |
---|
1097 | |
---|
1098 | // 1 plane + (24 bits/pixel << 16) |
---|
1099 | bmpHeaderAddInt(header, pos, 1572865); |
---|
1100 | |
---|
1101 | // no compression |
---|
1102 | // size of image for compression |
---|
1103 | bmpHeaderAddInt(header, pos, 0); |
---|
1104 | bmpHeaderAddInt(header, pos, 0); |
---|
1105 | |
---|
1106 | // x pixels per meter |
---|
1107 | // y pixels per meter |
---|
1108 | bmpHeaderAddInt(header, pos, 0); |
---|
1109 | bmpHeaderAddInt(header, pos, 0); |
---|
1110 | |
---|
1111 | // number of colors used (0 = compute from bits/pixel) |
---|
1112 | // number of important colors (0 = all colors important) |
---|
1113 | bmpHeaderAddInt(header, pos, 0); |
---|
1114 | bmpHeaderAddInt(header, pos, 0); |
---|
1115 | |
---|
1116 | // BE CAREFUL: BMP format wants BGR ordering for screen data |
---|
1117 | unsigned char* scr = screenBuffer; |
---|
1118 | for (int row=0; row < winHeight; row++) { |
---|
1119 | for (int col=0; col < winWidth; col++) { |
---|
1120 | unsigned char tmp = scr[2]; |
---|
1121 | scr[2] = scr[0]; // B |
---|
1122 | scr[0] = tmp; // R |
---|
1123 | scr += 3; |
---|
1124 | } |
---|
1125 | scr += pad; // skip over padding already in screen data |
---|
1126 | } |
---|
1127 | |
---|
1128 | nWritten = write(1, header, SIZEOF_BMP_HEADER); |
---|
1129 | assert(nWritten == SIZEOF_BMP_HEADER); |
---|
1130 | nWritten = write(1, screenBuffer, (3*winWidth+pad)*winHeight); |
---|
1131 | assert(nWritten == (3*winWidth+pad)*winHeight); |
---|
1132 | stats.nFrames++; |
---|
1133 | stats.nBytes += (3*winWidth+pad)*winHeight; |
---|
1134 | } |
---|
1135 | |
---|
1136 | /* |
---|
1137 | * ppmWrite -- |
---|
1138 | * |
---|
1139 | * Writes the screen image as PPM binary data to the nanovisviewer |
---|
1140 | * client. The PPM binary format is very simple. |
---|
1141 | * |
---|
1142 | * P6 w h 255\n |
---|
1143 | * 3-byte RGB pixel data. |
---|
1144 | * |
---|
1145 | * The nanovisviewer client (using the TkImg library) will do less work |
---|
1146 | * to unpack this format, as opposed to BMP or PNG. (This doesn't |
---|
1147 | * eliminate the need to look into DXT compression performed on the GPU). |
---|
1148 | * |
---|
1149 | * Note that currently the image data from the screen is both row-padded |
---|
1150 | * and the scan lines are reversed. This routine could be made even |
---|
1151 | * simpler (faster) if the screen buffer is an array of packed 3-bytes |
---|
1152 | * per pixels (no padding) and where the origin is the top-left corner. |
---|
1153 | */ |
---|
1154 | void |
---|
1155 | NanoVis::ppmWrite(const char *prefix) |
---|
1156 | { |
---|
1157 | #define PPM_MAXVAL 255 |
---|
1158 | char header[200]; |
---|
1159 | |
---|
1160 | TRACE("Enter (%dx%d)", winWidth, winHeight); |
---|
1161 | // Generate the PPM binary file header |
---|
1162 | sprintf(header, "P6 %d %d %d\n", winWidth, winHeight, PPM_MAXVAL); |
---|
1163 | |
---|
1164 | size_t header_length = strlen(header); |
---|
1165 | size_t data_length = winWidth * winHeight * 3; |
---|
1166 | |
---|
1167 | char command[200]; |
---|
1168 | sprintf(command, "%s %lu\n", prefix, |
---|
1169 | (unsigned long)header_length + data_length); |
---|
1170 | |
---|
1171 | size_t wordsPerRow = (winWidth * 24 + 31) / 32; |
---|
1172 | size_t bytesPerRow = wordsPerRow * 4; |
---|
1173 | size_t rowLength = winWidth * 3; |
---|
1174 | size_t nRecs = winHeight + 2; |
---|
1175 | |
---|
1176 | struct iovec *iov; |
---|
1177 | iov = (struct iovec *)malloc(sizeof(struct iovec) * nRecs); |
---|
1178 | |
---|
1179 | // Write the nanovisviewer command, then the image header and data. |
---|
1180 | // Command |
---|
1181 | iov[0].iov_base = command; |
---|
1182 | iov[0].iov_len = strlen(command); |
---|
1183 | // Header of image data |
---|
1184 | iov[1].iov_base = header; |
---|
1185 | iov[1].iov_len = header_length; |
---|
1186 | // Image data. |
---|
1187 | int y; |
---|
1188 | unsigned char *srcRowPtr = screenBuffer; |
---|
1189 | for (y = winHeight + 1; y >= 2; y--) { |
---|
1190 | iov[y].iov_base = srcRowPtr; |
---|
1191 | iov[y].iov_len = rowLength; |
---|
1192 | srcRowPtr += bytesPerRow; |
---|
1193 | } |
---|
1194 | if (writev(1, iov, nRecs) < 0) { |
---|
1195 | ERROR("write failed: %s", strerror(errno)); |
---|
1196 | } |
---|
1197 | free(iov); |
---|
1198 | stats.nFrames++; |
---|
1199 | stats.nBytes += (bytesPerRow * winHeight); |
---|
1200 | TRACE("Leave (%dx%d)", winWidth, winHeight); |
---|
1201 | } |
---|
1202 | |
---|
1203 | void |
---|
1204 | NanoVis::sendDataToClient(const char *command, const char *data, size_t dlen) |
---|
1205 | { |
---|
1206 | size_t numRecords = 2; |
---|
1207 | |
---|
1208 | struct iovec *iov = new iovec[numRecords]; |
---|
1209 | |
---|
1210 | // Write the nanovisviewer command, then the image header and data. |
---|
1211 | // Command |
---|
1212 | // FIXME: shouldn't have to cast this |
---|
1213 | iov[0].iov_base = (char *)command; |
---|
1214 | iov[0].iov_len = strlen(command); |
---|
1215 | // Data |
---|
1216 | // FIXME: shouldn't have to cast this |
---|
1217 | iov[1].iov_base = (char *)data; |
---|
1218 | iov[1].iov_len = dlen; |
---|
1219 | if (writev(1, iov, numRecords) < 0) { |
---|
1220 | ERROR("write failed: %s", strerror(errno)); |
---|
1221 | } |
---|
1222 | delete [] iov; |
---|
1223 | } |
---|
1224 | |
---|
1225 | void |
---|
1226 | NanoVis::idle() |
---|
1227 | { |
---|
1228 | TRACE("Enter"); |
---|
1229 | |
---|
1230 | glutSetWindow(renderWindow); |
---|
1231 | |
---|
1232 | processCommands(); |
---|
1233 | |
---|
1234 | TRACE("Leave"); |
---|
1235 | } |
---|
1236 | |
---|
1237 | void |
---|
1238 | NanoVis::draw3dAxis() |
---|
1239 | { |
---|
1240 | glPushAttrib(GL_ENABLE_BIT); |
---|
1241 | |
---|
1242 | glDisable(GL_TEXTURE_2D); |
---|
1243 | glEnable(GL_DEPTH_TEST); |
---|
1244 | glEnable(GL_COLOR_MATERIAL); |
---|
1245 | glDisable(GL_BLEND); |
---|
1246 | |
---|
1247 | //draw axes |
---|
1248 | GLUquadric *obj; |
---|
1249 | |
---|
1250 | obj = gluNewQuadric(); |
---|
1251 | |
---|
1252 | int segments = 50; |
---|
1253 | |
---|
1254 | glColor3f(0.8, 0.8, 0.8); |
---|
1255 | glPushMatrix(); |
---|
1256 | glTranslatef(0.4, 0., 0.); |
---|
1257 | glRotatef(90, 1, 0, 0); |
---|
1258 | glRotatef(180, 0, 1, 0); |
---|
1259 | glScalef(0.0005, 0.0005, 0.0005); |
---|
1260 | glutStrokeCharacter(GLUT_STROKE_ROMAN, 'x'); |
---|
1261 | glPopMatrix(); |
---|
1262 | |
---|
1263 | glPushMatrix(); |
---|
1264 | glTranslatef(0., 0.4, 0.); |
---|
1265 | glRotatef(90, 1, 0, 0); |
---|
1266 | glRotatef(180, 0, 1, 0); |
---|
1267 | glScalef(0.0005, 0.0005, 0.0005); |
---|
1268 | glutStrokeCharacter(GLUT_STROKE_ROMAN, 'y'); |
---|
1269 | glPopMatrix(); |
---|
1270 | |
---|
1271 | glPushMatrix(); |
---|
1272 | glTranslatef(0., 0., 0.4); |
---|
1273 | glRotatef(90, 1, 0, 0); |
---|
1274 | glRotatef(180, 0, 1, 0); |
---|
1275 | glScalef(0.0005, 0.0005, 0.0005); |
---|
1276 | glutStrokeCharacter(GLUT_STROKE_ROMAN, 'z'); |
---|
1277 | glPopMatrix(); |
---|
1278 | |
---|
1279 | glEnable(GL_LIGHTING); |
---|
1280 | glEnable(GL_LIGHT0); |
---|
1281 | |
---|
1282 | //glColor3f(0.2, 0.2, 0.8); |
---|
1283 | glPushMatrix(); |
---|
1284 | glutSolidSphere(0.02, segments, segments ); |
---|
1285 | glPopMatrix(); |
---|
1286 | |
---|
1287 | glPushMatrix(); |
---|
1288 | glRotatef(-90, 1, 0, 0); |
---|
1289 | gluCylinder(obj, 0.01, 0.01, 0.3, segments, segments); |
---|
1290 | glPopMatrix(); |
---|
1291 | |
---|
1292 | glPushMatrix(); |
---|
1293 | glTranslatef(0., 0.3, 0.); |
---|
1294 | glRotatef(-90, 1, 0, 0); |
---|
1295 | gluCylinder(obj, 0.02, 0.0, 0.06, segments, segments); |
---|
1296 | glPopMatrix(); |
---|
1297 | |
---|
1298 | glPushMatrix(); |
---|
1299 | glRotatef(90, 0, 1, 0); |
---|
1300 | gluCylinder(obj, 0.01, 0.01, 0.3, segments, segments); |
---|
1301 | glPopMatrix(); |
---|
1302 | |
---|
1303 | glPushMatrix(); |
---|
1304 | glTranslatef(0.3, 0., 0.); |
---|
1305 | glRotatef(90, 0, 1, 0); |
---|
1306 | gluCylinder(obj, 0.02, 0.0, 0.06, segments, segments); |
---|
1307 | glPopMatrix(); |
---|
1308 | |
---|
1309 | glPushMatrix(); |
---|
1310 | gluCylinder(obj, 0.01, 0.01, 0.3, segments, segments); |
---|
1311 | glPopMatrix(); |
---|
1312 | |
---|
1313 | glPushMatrix(); |
---|
1314 | glTranslatef(0., 0., 0.3); |
---|
1315 | gluCylinder(obj, 0.02, 0.0, 0.06, segments, segments); |
---|
1316 | glPopMatrix(); |
---|
1317 | |
---|
1318 | gluDeleteQuadric(obj); |
---|
1319 | |
---|
1320 | glPopAttrib(); |
---|
1321 | } |
---|
1322 | |
---|
1323 | void NanoVis::update() |
---|
1324 | { |
---|
1325 | VolumeInterpolator *volInterp = volRenderer->getVolumeInterpolator(); |
---|
1326 | if (volInterp->isStarted()) { |
---|
1327 | struct timeval clock; |
---|
1328 | gettimeofday(&clock, NULL); |
---|
1329 | double elapsed_time; |
---|
1330 | |
---|
1331 | elapsed_time = clock.tv_sec + clock.tv_usec/1000000.0 - |
---|
1332 | volInterp->getStartTime(); |
---|
1333 | |
---|
1334 | TRACE("%lf %lf", elapsed_time, |
---|
1335 | volInterp->getInterval()); |
---|
1336 | float fraction; |
---|
1337 | float f; |
---|
1338 | |
---|
1339 | f = fmod((float) elapsed_time, (float)volInterp->getInterval()); |
---|
1340 | if (f == 0.0) { |
---|
1341 | fraction = 0.0f; |
---|
1342 | } else { |
---|
1343 | fraction = f / volInterp->getInterval(); |
---|
1344 | } |
---|
1345 | TRACE("fraction : %f", fraction); |
---|
1346 | volInterp->update(fraction); |
---|
1347 | } |
---|
1348 | } |
---|
1349 | |
---|
1350 | void |
---|
1351 | NanoVis::setVolumeRanges() |
---|
1352 | { |
---|
1353 | double xMin, xMax, yMin, yMax, zMin, zMax, wMin, wMax; |
---|
1354 | |
---|
1355 | TRACE("Enter"); |
---|
1356 | xMin = yMin = zMin = wMin = DBL_MAX; |
---|
1357 | xMax = yMax = zMax = wMax = -DBL_MAX; |
---|
1358 | VolumeHashmap::iterator itr; |
---|
1359 | for (itr = volumeTable.begin(); |
---|
1360 | itr != volumeTable.end(); ++itr) { |
---|
1361 | Volume *volume = itr->second; |
---|
1362 | if (xMin > volume->xAxis.min()) { |
---|
1363 | xMin = volume->xAxis.min(); |
---|
1364 | } |
---|
1365 | if (xMax < volume->xAxis.max()) { |
---|
1366 | xMax = volume->xAxis.max(); |
---|
1367 | } |
---|
1368 | if (yMin > volume->yAxis.min()) { |
---|
1369 | yMin = volume->yAxis.min(); |
---|
1370 | } |
---|
1371 | if (yMax < volume->yAxis.max()) { |
---|
1372 | yMax = volume->yAxis.max(); |
---|
1373 | } |
---|
1374 | if (zMin > volume->zAxis.min()) { |
---|
1375 | zMin = volume->zAxis.min(); |
---|
1376 | } |
---|
1377 | if (zMax < volume->zAxis.max()) { |
---|
1378 | zMax = volume->zAxis.max(); |
---|
1379 | } |
---|
1380 | if (wMin > volume->wAxis.min()) { |
---|
1381 | wMin = volume->wAxis.min(); |
---|
1382 | } |
---|
1383 | if (wMax < volume->wAxis.max()) { |
---|
1384 | wMax = volume->wAxis.max(); |
---|
1385 | } |
---|
1386 | } |
---|
1387 | if ((xMin < DBL_MAX) && (xMax > -DBL_MAX)) { |
---|
1388 | grid->xAxis.setScale(xMin, xMax); |
---|
1389 | } |
---|
1390 | if ((yMin < DBL_MAX) && (yMax > -DBL_MAX)) { |
---|
1391 | grid->yAxis.setScale(yMin, yMax); |
---|
1392 | } |
---|
1393 | if ((zMin < DBL_MAX) && (zMax > -DBL_MAX)) { |
---|
1394 | grid->zAxis.setScale(zMin, zMax); |
---|
1395 | } |
---|
1396 | if ((wMin < DBL_MAX) && (wMax > -DBL_MAX)) { |
---|
1397 | Volume::valueMin = wMin; |
---|
1398 | Volume::valueMax = wMax; |
---|
1399 | } |
---|
1400 | Volume::updatePending = false; |
---|
1401 | TRACE("Leave"); |
---|
1402 | } |
---|
1403 | |
---|
1404 | void |
---|
1405 | NanoVis::setHeightmapRanges() |
---|
1406 | { |
---|
1407 | double xMin, xMax, yMin, yMax, zMin, zMax, wMin, wMax; |
---|
1408 | |
---|
1409 | TRACE("Enter"); |
---|
1410 | xMin = yMin = zMin = wMin = DBL_MAX; |
---|
1411 | xMax = yMax = zMax = wMax = -DBL_MAX; |
---|
1412 | HeightMapHashmap::iterator itr; |
---|
1413 | for (itr = heightMapTable.begin(); |
---|
1414 | itr != heightMapTable.end(); ++itr) { |
---|
1415 | HeightMap *heightMap = itr->second; |
---|
1416 | if (xMin > heightMap->xAxis.min()) { |
---|
1417 | xMin = heightMap->xAxis.min(); |
---|
1418 | } |
---|
1419 | if (xMax < heightMap->xAxis.max()) { |
---|
1420 | xMax = heightMap->xAxis.max(); |
---|
1421 | } |
---|
1422 | if (yMin > heightMap->yAxis.min()) { |
---|
1423 | yMin = heightMap->yAxis.min(); |
---|
1424 | } |
---|
1425 | if (yMax < heightMap->yAxis.max()) { |
---|
1426 | yMax = heightMap->yAxis.max(); |
---|
1427 | } |
---|
1428 | if (zMin > heightMap->zAxis.min()) { |
---|
1429 | zMin = heightMap->zAxis.min(); |
---|
1430 | } |
---|
1431 | if (zMax < heightMap->zAxis.max()) { |
---|
1432 | zMax = heightMap->zAxis.max(); |
---|
1433 | } |
---|
1434 | if (wMin > heightMap->wAxis.min()) { |
---|
1435 | wMin = heightMap->wAxis.min(); |
---|
1436 | } |
---|
1437 | if (wMax < heightMap->wAxis.max()) { |
---|
1438 | wMax = heightMap->wAxis.max(); |
---|
1439 | } |
---|
1440 | } |
---|
1441 | if ((xMin < DBL_MAX) && (xMax > -DBL_MAX)) { |
---|
1442 | grid->xAxis.setScale(xMin, xMax); |
---|
1443 | } |
---|
1444 | if ((yMin < DBL_MAX) && (yMax > -DBL_MAX)) { |
---|
1445 | grid->yAxis.setScale(yMin, yMax); |
---|
1446 | } |
---|
1447 | if ((zMin < DBL_MAX) && (zMax > -DBL_MAX)) { |
---|
1448 | grid->zAxis.setScale(zMin, zMax); |
---|
1449 | } |
---|
1450 | if ((wMin < DBL_MAX) && (wMax > -DBL_MAX)) { |
---|
1451 | HeightMap::valueMin = grid->yAxis.min(); |
---|
1452 | HeightMap::valueMax = grid->yAxis.max(); |
---|
1453 | } |
---|
1454 | for (HeightMapHashmap::iterator itr = heightMapTable.begin(); |
---|
1455 | itr != heightMapTable.end(); ++itr) { |
---|
1456 | itr->second->mapToGrid(grid); |
---|
1457 | } |
---|
1458 | HeightMap::updatePending = false; |
---|
1459 | TRACE("Leave"); |
---|
1460 | } |
---|
1461 | |
---|
1462 | void |
---|
1463 | NanoVis::collectBounds(bool onlyVisible) |
---|
1464 | { |
---|
1465 | if (flags & MAP_FLOWS) { |
---|
1466 | mapFlows(); |
---|
1467 | grid->xAxis.setScale(xMin, xMax); |
---|
1468 | grid->yAxis.setScale(yMin, yMax); |
---|
1469 | grid->zAxis.setScale(zMin, zMax); |
---|
1470 | } |
---|
1471 | |
---|
1472 | sceneMin.set(FLT_MAX, FLT_MAX, FLT_MAX); |
---|
1473 | sceneMax.set(-FLT_MAX, -FLT_MAX, -FLT_MAX); |
---|
1474 | |
---|
1475 | for (VolumeHashmap::iterator itr = volumeTable.begin(); |
---|
1476 | itr != volumeTable.end(); ++itr) { |
---|
1477 | Volume *volume = itr->second; |
---|
1478 | |
---|
1479 | if (onlyVisible && !volume->visible()) |
---|
1480 | continue; |
---|
1481 | |
---|
1482 | Vector3f bmin, bmax; |
---|
1483 | volume->getWorldSpaceBounds(bmin, bmax); |
---|
1484 | if (bmin.x > bmax.x) |
---|
1485 | continue; |
---|
1486 | |
---|
1487 | if (sceneMin.x > bmin.x) { |
---|
1488 | sceneMin.x = bmin.x; |
---|
1489 | } |
---|
1490 | if (sceneMax.x < bmax.x) { |
---|
1491 | sceneMax.x = bmax.x; |
---|
1492 | } |
---|
1493 | if (sceneMin.y > bmin.y) { |
---|
1494 | sceneMin.y = bmin.y; |
---|
1495 | } |
---|
1496 | if (sceneMax.y < bmax.y) { |
---|
1497 | sceneMax.y = bmax.y; |
---|
1498 | } |
---|
1499 | if (sceneMin.z > bmin.z) { |
---|
1500 | sceneMin.z = bmin.z; |
---|
1501 | } |
---|
1502 | if (sceneMax.z < bmax.z) { |
---|
1503 | sceneMax.z = bmax.z; |
---|
1504 | } |
---|
1505 | } |
---|
1506 | |
---|
1507 | for (HeightMapHashmap::iterator itr = heightMapTable.begin(); |
---|
1508 | itr != heightMapTable.end(); ++itr) { |
---|
1509 | HeightMap *heightMap = itr->second; |
---|
1510 | |
---|
1511 | if (onlyVisible && !heightMap->isVisible()) |
---|
1512 | continue; |
---|
1513 | |
---|
1514 | Vector3f bmin, bmax; |
---|
1515 | heightMap->getWorldSpaceBounds(bmin, bmax); |
---|
1516 | if (bmin.x > bmax.x) |
---|
1517 | continue; |
---|
1518 | |
---|
1519 | if (sceneMin.x > bmin.x) { |
---|
1520 | sceneMin.x = bmin.x; |
---|
1521 | } |
---|
1522 | if (sceneMax.x < bmax.x) { |
---|
1523 | sceneMax.x = bmax.x; |
---|
1524 | } |
---|
1525 | if (sceneMin.y > bmin.y) { |
---|
1526 | sceneMin.y = bmin.y; |
---|
1527 | } |
---|
1528 | if (sceneMax.y < bmax.y) { |
---|
1529 | sceneMax.y = bmax.y; |
---|
1530 | } |
---|
1531 | if (sceneMin.z > bmin.z) { |
---|
1532 | sceneMin.z = bmin.z; |
---|
1533 | } |
---|
1534 | if (sceneMax.z < bmax.z) { |
---|
1535 | sceneMax.z = bmax.z; |
---|
1536 | } |
---|
1537 | } |
---|
1538 | |
---|
1539 | Vector3f flowMin, flowMax; |
---|
1540 | getFlowBounds(flowMin, flowMax, onlyVisible); |
---|
1541 | if (flowMin.x < flowMax.x) { |
---|
1542 | if (sceneMin.x > flowMin.x) { |
---|
1543 | sceneMin.x = flowMin.x; |
---|
1544 | } |
---|
1545 | if (sceneMax.x < flowMax.x) { |
---|
1546 | sceneMax.x = flowMax.x; |
---|
1547 | } |
---|
1548 | if (sceneMin.y > flowMin.y) { |
---|
1549 | sceneMin.y = flowMin.y; |
---|
1550 | } |
---|
1551 | if (sceneMax.y < flowMax.y) { |
---|
1552 | sceneMax.y = flowMax.y; |
---|
1553 | } |
---|
1554 | if (sceneMin.z > flowMin.z) { |
---|
1555 | sceneMin.z = flowMin.z; |
---|
1556 | } |
---|
1557 | if (sceneMax.z < flowMax.z) { |
---|
1558 | sceneMax.z = flowMax.z; |
---|
1559 | } |
---|
1560 | } |
---|
1561 | |
---|
1562 | // TODO: Get Grid bounds |
---|
1563 | |
---|
1564 | if (sceneMin.x > sceneMax.x) { |
---|
1565 | sceneMin.set(-0.5, -0.5, -0.5); |
---|
1566 | sceneMax.set( 0.5, 0.5, 0.5); |
---|
1567 | } |
---|
1568 | |
---|
1569 | TRACE("Scene bounds: (%g,%g,%g) - (%g,%g,%g)", |
---|
1570 | sceneMin.x, sceneMin.y, sceneMin.z, |
---|
1571 | sceneMax.x, sceneMax.y, sceneMax.z); |
---|
1572 | } |
---|
1573 | |
---|
1574 | void |
---|
1575 | NanoVis::setBgColor(float color[3]) |
---|
1576 | { |
---|
1577 | TRACE("Setting bgcolor to %g %g %g", color[0], color[1], color[2]); |
---|
1578 | glClearColor(color[0], color[1], color[2], 1); |
---|
1579 | } |
---|
1580 | |
---|
1581 | Flow * |
---|
1582 | NanoVis::getFlow(const char *name) |
---|
1583 | { |
---|
1584 | FlowHashmap::iterator itr = flowTable.find(name); |
---|
1585 | if (itr == flowTable.end()) { |
---|
1586 | TRACE("Can't find flow '%s'", name); |
---|
1587 | return NULL; |
---|
1588 | } |
---|
1589 | return itr->second; |
---|
1590 | } |
---|
1591 | |
---|
1592 | Flow * |
---|
1593 | NanoVis::createFlow(Tcl_Interp *interp, const char *name) |
---|
1594 | { |
---|
1595 | FlowHashmap::iterator itr = flowTable.find(name); |
---|
1596 | if (itr != flowTable.end()) { |
---|
1597 | ERROR("Flow '%s' already exists", name); |
---|
1598 | return NULL; |
---|
1599 | } |
---|
1600 | Flow *flow = new Flow(interp, name); |
---|
1601 | flowTable[name] = flow; |
---|
1602 | return flow; |
---|
1603 | } |
---|
1604 | |
---|
1605 | /** |
---|
1606 | * \brief Delete flow object and hash table entry |
---|
1607 | * |
---|
1608 | * This is called by the flow command instance delete callback |
---|
1609 | */ |
---|
1610 | void |
---|
1611 | NanoVis::deleteFlow(const char *name) |
---|
1612 | { |
---|
1613 | FlowHashmap::iterator itr = flowTable.find(name); |
---|
1614 | if (itr != flowTable.end()) { |
---|
1615 | delete itr->second; |
---|
1616 | flowTable.erase(itr); |
---|
1617 | } |
---|
1618 | } |
---|
1619 | |
---|
1620 | /** |
---|
1621 | * \brief Delete all flow object commands |
---|
1622 | * |
---|
1623 | * This will also delete the flow objects and hash table entries |
---|
1624 | */ |
---|
1625 | void |
---|
1626 | NanoVis::deleteFlows(Tcl_Interp *interp) |
---|
1627 | { |
---|
1628 | FlowHashmap::iterator itr; |
---|
1629 | for (itr = flowTable.begin(); |
---|
1630 | itr != flowTable.end(); ++itr) { |
---|
1631 | Tcl_DeleteCommandFromToken(interp, itr->second->getCommandToken()); |
---|
1632 | } |
---|
1633 | flowTable.clear(); |
---|
1634 | } |
---|
1635 | |
---|
1636 | bool |
---|
1637 | NanoVis::mapFlows() |
---|
1638 | { |
---|
1639 | TRACE("Enter"); |
---|
1640 | |
---|
1641 | flags &= ~MAP_FLOWS; |
---|
1642 | |
---|
1643 | /* |
---|
1644 | * Step 1. Get the overall min and max magnitudes of all the |
---|
1645 | * flow vectors. |
---|
1646 | */ |
---|
1647 | magMin = DBL_MAX, magMax = -DBL_MAX; |
---|
1648 | |
---|
1649 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
1650 | itr != flowTable.end(); ++itr) { |
---|
1651 | Flow *flow = itr->second; |
---|
1652 | double min, max; |
---|
1653 | if (!flow->isDataLoaded()) { |
---|
1654 | continue; |
---|
1655 | } |
---|
1656 | Rappture::Unirect3d *data = flow->data(); |
---|
1657 | min = data->magMin(); |
---|
1658 | max = data->magMax(); |
---|
1659 | if (min < magMin) { |
---|
1660 | magMin = min; |
---|
1661 | } |
---|
1662 | if (max > magMax) { |
---|
1663 | magMax = max; |
---|
1664 | } |
---|
1665 | if (data->xMin() < xMin) { |
---|
1666 | xMin = data->xMin(); |
---|
1667 | } |
---|
1668 | if (data->yMin() < yMin) { |
---|
1669 | yMin = data->yMin(); |
---|
1670 | } |
---|
1671 | if (data->zMin() < zMin) { |
---|
1672 | zMin = data->zMin(); |
---|
1673 | } |
---|
1674 | if (data->xMax() > xMax) { |
---|
1675 | xMax = data->xMax(); |
---|
1676 | } |
---|
1677 | if (data->yMax() > yMax) { |
---|
1678 | yMax = data->yMax(); |
---|
1679 | } |
---|
1680 | if (data->zMax() > zMax) { |
---|
1681 | zMax = data->zMax(); |
---|
1682 | } |
---|
1683 | } |
---|
1684 | |
---|
1685 | TRACE("magMin=%g magMax=%g", NanoVis::magMin, NanoVis::magMax); |
---|
1686 | |
---|
1687 | /* |
---|
1688 | * Step 2. Generate the vector field from each data set. |
---|
1689 | */ |
---|
1690 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
1691 | itr != flowTable.end(); ++itr) { |
---|
1692 | Flow *flow = itr->second; |
---|
1693 | if (!flow->isDataLoaded()) { |
---|
1694 | continue; // Flow exists, but no data has been loaded yet. |
---|
1695 | } |
---|
1696 | if (flow->visible()) { |
---|
1697 | flow->initializeParticles(); |
---|
1698 | } |
---|
1699 | if (!flow->scaleVectorField()) { |
---|
1700 | return false; |
---|
1701 | } |
---|
1702 | // FIXME: This doesn't work when there is more than one flow. |
---|
1703 | licRenderer->setOffset(flow->getRelativePosition()); |
---|
1704 | velocityArrowsSlice->slicePos(flow->getRelativePosition()); |
---|
1705 | } |
---|
1706 | advectFlows(); |
---|
1707 | return true; |
---|
1708 | } |
---|
1709 | |
---|
1710 | void |
---|
1711 | NanoVis::getFlowBounds(Vector3f& min, |
---|
1712 | Vector3f& max, |
---|
1713 | bool onlyVisible) |
---|
1714 | { |
---|
1715 | TRACE("Enter"); |
---|
1716 | |
---|
1717 | min.set(FLT_MAX, FLT_MAX, FLT_MAX); |
---|
1718 | max.set(-FLT_MAX, -FLT_MAX, -FLT_MAX); |
---|
1719 | |
---|
1720 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
1721 | itr != flowTable.end(); ++itr) { |
---|
1722 | itr->second->getBounds(min, max, onlyVisible); |
---|
1723 | } |
---|
1724 | } |
---|
1725 | |
---|
1726 | void |
---|
1727 | NanoVis::renderFlows() |
---|
1728 | { |
---|
1729 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
1730 | itr != flowTable.end(); ++itr) { |
---|
1731 | Flow *flow = itr->second; |
---|
1732 | if (flow->isDataLoaded() && flow->visible()) { |
---|
1733 | flow->render(); |
---|
1734 | } |
---|
1735 | } |
---|
1736 | flags &= ~REDRAW_PENDING; |
---|
1737 | } |
---|
1738 | |
---|
1739 | void |
---|
1740 | NanoVis::resetFlows() |
---|
1741 | { |
---|
1742 | if (licRenderer->active()) { |
---|
1743 | NanoVis::licRenderer->reset(); |
---|
1744 | } |
---|
1745 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
1746 | itr != flowTable.end(); ++itr) { |
---|
1747 | Flow *flow = itr->second; |
---|
1748 | if (flow->isDataLoaded() && flow->visible()) { |
---|
1749 | flow->resetParticles(); |
---|
1750 | } |
---|
1751 | } |
---|
1752 | } |
---|
1753 | |
---|
1754 | void |
---|
1755 | NanoVis::advectFlows() |
---|
1756 | { |
---|
1757 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
1758 | itr != flowTable.end(); ++itr) { |
---|
1759 | Flow *flow = itr->second; |
---|
1760 | if (flow->isDataLoaded() && flow->visible()) { |
---|
1761 | flow->advect(); |
---|
1762 | } |
---|
1763 | } |
---|
1764 | } |
---|
1765 | |
---|
1766 | void |
---|
1767 | NanoVis::render() |
---|
1768 | { |
---|
1769 | TRACE("Enter"); |
---|
1770 | |
---|
1771 | if (flags & MAP_FLOWS) { |
---|
1772 | #ifdef notdef |
---|
1773 | xMin = yMin = zMin = wMin = FLT_MAX, magMin = DBL_MAX; |
---|
1774 | xMax = yMax = zMax = wMax = -FLT_MAX, magMax = -DBL_MAX; |
---|
1775 | #endif |
---|
1776 | mapFlows(); |
---|
1777 | grid->xAxis.setScale(xMin, xMax); |
---|
1778 | grid->yAxis.setScale(yMin, yMax); |
---|
1779 | grid->zAxis.setScale(zMin, zMax); |
---|
1780 | } |
---|
1781 | //assert(glGetError()==0); |
---|
1782 | if (HeightMap::updatePending) { |
---|
1783 | setHeightmapRanges(); |
---|
1784 | } |
---|
1785 | if (Volume::updatePending) { |
---|
1786 | setVolumeRanges(); |
---|
1787 | } |
---|
1788 | |
---|
1789 | //start final rendering |
---|
1790 | |
---|
1791 | // Need to reset fbo since it may have been changed to default (0) |
---|
1792 | bindOffscreenBuffer(); |
---|
1793 | |
---|
1794 | //clear screen |
---|
1795 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
---|
1796 | |
---|
1797 | glEnable(GL_DEPTH_TEST); |
---|
1798 | glEnable(GL_COLOR_MATERIAL); |
---|
1799 | |
---|
1800 | //camera setting activated |
---|
1801 | cam->initialize(); |
---|
1802 | |
---|
1803 | //set up the orientation of items in the scene. |
---|
1804 | glPushMatrix(); |
---|
1805 | |
---|
1806 | switch (updir) { |
---|
1807 | case X_POS: |
---|
1808 | glRotatef(90, 0, 0, 1); |
---|
1809 | glRotatef(90, 1, 0, 0); |
---|
1810 | break; |
---|
1811 | case Y_POS: |
---|
1812 | // this is the default |
---|
1813 | break; |
---|
1814 | case Z_POS: |
---|
1815 | glRotatef(-90, 1, 0, 0); |
---|
1816 | glRotatef(-90, 0, 0, 1); |
---|
1817 | break; |
---|
1818 | case X_NEG: |
---|
1819 | glRotatef(-90, 0, 0, 1); |
---|
1820 | break; |
---|
1821 | case Y_NEG: |
---|
1822 | glRotatef(180, 0, 0, 1); |
---|
1823 | glRotatef(-90, 0, 1, 0); |
---|
1824 | break; |
---|
1825 | case Z_NEG: |
---|
1826 | glRotatef(90, 1, 0, 0); |
---|
1827 | break; |
---|
1828 | } |
---|
1829 | |
---|
1830 | //now render things in the scene |
---|
1831 | if (axisOn) { |
---|
1832 | draw3dAxis(); |
---|
1833 | } |
---|
1834 | if (grid->isVisible()) { |
---|
1835 | grid->render(); |
---|
1836 | } |
---|
1837 | if ((licRenderer != NULL) && (licRenderer->active())) { |
---|
1838 | licRenderer->render(); |
---|
1839 | } |
---|
1840 | if ((velocityArrowsSlice != NULL) && (velocityArrowsSlice->enabled())) { |
---|
1841 | velocityArrowsSlice->render(); |
---|
1842 | } |
---|
1843 | if (!flowTable.empty()) { |
---|
1844 | renderFlows(); |
---|
1845 | } |
---|
1846 | |
---|
1847 | volRenderer->renderAll(); |
---|
1848 | |
---|
1849 | TRACE("Render heightmaps"); |
---|
1850 | HeightMapHashmap::iterator itr; |
---|
1851 | for (itr = heightMapTable.begin(); |
---|
1852 | itr != heightMapTable.end(); ++itr) { |
---|
1853 | HeightMap *heightMap = itr->second; |
---|
1854 | if (heightMap->isVisible()) { |
---|
1855 | heightMap->render(renderContext); |
---|
1856 | } |
---|
1857 | } |
---|
1858 | glPopMatrix(); |
---|
1859 | |
---|
1860 | CHECK_FRAMEBUFFER_STATUS(); |
---|
1861 | TRACE("Leave"); |
---|
1862 | } |
---|
1863 | |
---|
1864 | void |
---|
1865 | NanoVis::processCommands() |
---|
1866 | { |
---|
1867 | flags &= ~REDRAW_PENDING; |
---|
1868 | |
---|
1869 | TRACE("Enter"); |
---|
1870 | |
---|
1871 | int flags = fcntl(0, F_GETFL, 0); |
---|
1872 | fcntl(0, F_SETFL, flags & ~O_NONBLOCK); |
---|
1873 | |
---|
1874 | int status = TCL_OK; |
---|
1875 | |
---|
1876 | // Read and execute as many commands as we can from stdin... |
---|
1877 | Tcl_DString cmdbuffer; |
---|
1878 | Tcl_DStringInit(&cmdbuffer); |
---|
1879 | int nCommands = 0; |
---|
1880 | bool isComplete = false; |
---|
1881 | while ((!feof(NanoVis::stdin)) && (status == TCL_OK)) { |
---|
1882 | // |
---|
1883 | // Read the next command from the buffer. First time through we |
---|
1884 | // block here and wait if necessary until a command comes in. |
---|
1885 | // |
---|
1886 | // BE CAREFUL: Read only one command, up to a newline. The "volume |
---|
1887 | // data follows" command needs to be able to read the data |
---|
1888 | // immediately following the command, and we shouldn't consume it |
---|
1889 | // here. |
---|
1890 | // |
---|
1891 | while (!feof(NanoVis::stdin)) { |
---|
1892 | int c = fgetc(NanoVis::stdin); |
---|
1893 | char ch; |
---|
1894 | if (c <= 0) { |
---|
1895 | if (errno == EWOULDBLOCK) { |
---|
1896 | break; |
---|
1897 | } |
---|
1898 | exitService(100); |
---|
1899 | } |
---|
1900 | ch = (char)c; |
---|
1901 | Tcl_DStringAppend(&cmdbuffer, &ch, 1); |
---|
1902 | if (ch == '\n') { |
---|
1903 | isComplete = Tcl_CommandComplete(Tcl_DStringValue(&cmdbuffer)); |
---|
1904 | if (isComplete) { |
---|
1905 | break; |
---|
1906 | } |
---|
1907 | } |
---|
1908 | } |
---|
1909 | // no command? then we're done for now |
---|
1910 | if (Tcl_DStringLength(&cmdbuffer) == 0) { |
---|
1911 | break; |
---|
1912 | } |
---|
1913 | if (isComplete) { |
---|
1914 | // back to original flags during command evaluation... |
---|
1915 | fcntl(0, F_SETFL, flags & ~O_NONBLOCK); |
---|
1916 | status = executeCommand(interp, &cmdbuffer); |
---|
1917 | // non-blocking for next read -- we might not get anything |
---|
1918 | fcntl(0, F_SETFL, flags | O_NONBLOCK); |
---|
1919 | isComplete = false; |
---|
1920 | nCommands++; |
---|
1921 | CHECK_FRAMEBUFFER_STATUS(); |
---|
1922 | } |
---|
1923 | } |
---|
1924 | fcntl(0, F_SETFL, flags); |
---|
1925 | |
---|
1926 | if (status != TCL_OK) { |
---|
1927 | char *msg; |
---|
1928 | char hdr[200]; |
---|
1929 | int msgSize, hdrSize; |
---|
1930 | Tcl_Obj *objPtr; |
---|
1931 | |
---|
1932 | objPtr = Tcl_GetObjResult(interp); |
---|
1933 | msg = Tcl_GetStringFromObj(objPtr, &msgSize); |
---|
1934 | hdrSize = sprintf(hdr, "nv>viserror -type internal_error -bytes %d\n", msgSize); |
---|
1935 | { |
---|
1936 | struct iovec iov[2]; |
---|
1937 | |
---|
1938 | iov[0].iov_base = hdr; |
---|
1939 | iov[0].iov_len = hdrSize; |
---|
1940 | iov[1].iov_base = msg; |
---|
1941 | iov[1].iov_len = msgSize; |
---|
1942 | if (writev(1, iov, 2) < 0) { |
---|
1943 | ERROR("write failed: %s", strerror(errno)); |
---|
1944 | } |
---|
1945 | } |
---|
1946 | TRACE("Leaving on ERROR"); |
---|
1947 | return; |
---|
1948 | } |
---|
1949 | if (feof(NanoVis::stdin)) { |
---|
1950 | TRACE("Exiting server on EOF from client"); |
---|
1951 | exitService(90); |
---|
1952 | } |
---|
1953 | |
---|
1954 | update(); |
---|
1955 | |
---|
1956 | bindOffscreenBuffer(); //enable offscreen render |
---|
1957 | render(); |
---|
1958 | readScreen(); |
---|
1959 | |
---|
1960 | if (feof(NanoVis::stdin)) { |
---|
1961 | exitService(90); |
---|
1962 | } |
---|
1963 | |
---|
1964 | ppmWrite("nv>image -type image -bytes"); |
---|
1965 | |
---|
1966 | TRACE("Leave"); |
---|
1967 | } |
---|
1968 | |
---|
1969 | int |
---|
1970 | main(int argc, char **argv) |
---|
1971 | { |
---|
1972 | const char *path; |
---|
1973 | char *newPath; |
---|
1974 | |
---|
1975 | newPath = NULL; |
---|
1976 | path = NULL; |
---|
1977 | NanoVis::stdin = stdin; |
---|
1978 | |
---|
1979 | fprintf(stdout, "NanoVis %s (build %s)\n", NANOVIS_VERSION, SVN_VERSION); |
---|
1980 | fflush(stdout); |
---|
1981 | |
---|
1982 | openlog("nanovis", LOG_CONS | LOG_PERROR | LOG_PID, LOG_USER); |
---|
1983 | gettimeofday(&NanoVis::startTime, NULL); |
---|
1984 | stats.start = NanoVis::startTime; |
---|
1985 | |
---|
1986 | /* Initialize GLUT here so it can parse and remove GLUT-specific |
---|
1987 | * command-line options before we parse the command-line below. */ |
---|
1988 | glutInit(&argc, argv); |
---|
1989 | glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA); |
---|
1990 | glutInitWindowSize(NanoVis::winWidth, NanoVis::winHeight); |
---|
1991 | glutInitWindowPosition(10, 10); |
---|
1992 | NanoVis::renderWindow = glutCreateWindow("nanovis"); |
---|
1993 | glutIdleFunc(NanoVis::idle); |
---|
1994 | |
---|
1995 | glutDisplayFunc(NanoVis::render); |
---|
1996 | glutReshapeFunc(NanoVis::resizeOffscreenBuffer); |
---|
1997 | |
---|
1998 | while (1) { |
---|
1999 | static struct option long_options[] = { |
---|
2000 | {"infile", required_argument, NULL, 0}, |
---|
2001 | {"path", required_argument, NULL, 2}, |
---|
2002 | {"debug", no_argument, NULL, 3}, |
---|
2003 | {"record", required_argument, NULL, 4}, |
---|
2004 | {0, 0, 0, 0} |
---|
2005 | }; |
---|
2006 | int option_index = 0; |
---|
2007 | int c; |
---|
2008 | |
---|
2009 | c = getopt_long(argc, argv, ":dp:i:l:r:", long_options, &option_index); |
---|
2010 | if (c == -1) { |
---|
2011 | break; |
---|
2012 | } |
---|
2013 | switch (c) { |
---|
2014 | case '?': |
---|
2015 | fprintf(stderr, "unknown option -%c\n", optopt); |
---|
2016 | return 1; |
---|
2017 | case ':': |
---|
2018 | if (optopt < 4) { |
---|
2019 | fprintf(stderr, "argument missing for --%s option\n", |
---|
2020 | long_options[optopt].name); |
---|
2021 | } else { |
---|
2022 | fprintf(stderr, "argument missing for -%c option\n", optopt); |
---|
2023 | } |
---|
2024 | return 1; |
---|
2025 | case 2: |
---|
2026 | case 'p': |
---|
2027 | path = optarg; |
---|
2028 | break; |
---|
2029 | case 3: |
---|
2030 | case 'd': |
---|
2031 | NanoVis::debugFlag = true; |
---|
2032 | break; |
---|
2033 | case 0: |
---|
2034 | case 'i': |
---|
2035 | NanoVis::stdin = fopen(optarg, "r"); |
---|
2036 | if (NanoVis::stdin == NULL) { |
---|
2037 | perror(optarg); |
---|
2038 | return 2; |
---|
2039 | } |
---|
2040 | break; |
---|
2041 | case 4: |
---|
2042 | case 'r': |
---|
2043 | Tcl_DString ds; |
---|
2044 | char buf[200]; |
---|
2045 | |
---|
2046 | Tcl_DStringInit(&ds); |
---|
2047 | Tcl_DStringAppend(&ds, optarg, -1); |
---|
2048 | sprintf(buf, ".%d", getpid()); |
---|
2049 | Tcl_DStringAppend(&ds, buf, -1); |
---|
2050 | NanoVis::recfile = fopen(Tcl_DStringValue(&ds), "w"); |
---|
2051 | if (NanoVis::recfile == NULL) { |
---|
2052 | perror(optarg); |
---|
2053 | return 2; |
---|
2054 | } |
---|
2055 | break; |
---|
2056 | default: |
---|
2057 | fprintf(stderr,"unknown option '%c'.\n", c); |
---|
2058 | return 1; |
---|
2059 | } |
---|
2060 | } |
---|
2061 | if (path == NULL) { |
---|
2062 | char *p; |
---|
2063 | |
---|
2064 | // See if we can derive the path from the location of the program. |
---|
2065 | // Assume program is in the form <path>/bin/nanovis. |
---|
2066 | path = argv[0]; |
---|
2067 | p = strrchr((char *)path, '/'); |
---|
2068 | if (p != NULL) { |
---|
2069 | *p = '\0'; |
---|
2070 | p = strrchr((char *)path, '/'); |
---|
2071 | } |
---|
2072 | if (p == NULL) { |
---|
2073 | TRACE("path not specified"); |
---|
2074 | return 1; |
---|
2075 | } |
---|
2076 | *p = '\0'; |
---|
2077 | newPath = new char[(strlen(path) + 15) * 2 + 1]; |
---|
2078 | sprintf(newPath, "%s/lib/shaders:%s/lib/resources", path, path); |
---|
2079 | path = newPath; |
---|
2080 | } |
---|
2081 | |
---|
2082 | FilePath::getInstance()->setWorkingDirectory(argc, (const char**) argv); |
---|
2083 | |
---|
2084 | #ifdef notdef |
---|
2085 | signal(SIGPIPE, SIG_IGN); |
---|
2086 | #endif |
---|
2087 | initService(); |
---|
2088 | |
---|
2089 | NanoVis::init(path); |
---|
2090 | if (newPath != NULL) { |
---|
2091 | delete [] newPath; |
---|
2092 | } |
---|
2093 | NanoVis::initGL(); |
---|
2094 | |
---|
2095 | NanoVis::interp = initTcl(); |
---|
2096 | |
---|
2097 | NanoVis::resizeOffscreenBuffer(NanoVis::winWidth, NanoVis::winHeight); |
---|
2098 | |
---|
2099 | glutMainLoop(); |
---|
2100 | |
---|
2101 | exitService(80); |
---|
2102 | } |
---|
2103 | |
---|
2104 | void |
---|
2105 | NanoVis::removeVolume(Volume *volume) |
---|
2106 | { |
---|
2107 | VolumeHashmap::iterator itr = volumeTable.find(volume->name()); |
---|
2108 | if (itr != volumeTable.end()) { |
---|
2109 | volumeTable.erase(itr); |
---|
2110 | } |
---|
2111 | delete volume; |
---|
2112 | } |
---|