1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * Copyright (C) 2004-2013 HUBzero Foundation, LLC |
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4 | * |
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5 | * Author: Leif Delgass <ldelgass@purdue.edu> |
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6 | */ |
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7 | |
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8 | #include <cstdlib> |
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9 | #include <cstdio> |
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10 | #include <cstring> |
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11 | #include <cfloat> |
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12 | #include <cerrno> |
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13 | #include <string> |
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14 | #include <sstream> |
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15 | #include <vector> |
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16 | #include <unistd.h> |
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17 | #include <sys/select.h> |
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18 | #include <sys/uio.h> |
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19 | #include <tcl.h> |
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20 | |
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21 | #include <osgEarthFeatures/FeatureModelSource> |
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22 | #include <osgEarthSymbology/Color> |
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23 | #include <osgEarthSymbology/Style> |
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24 | #include <osgEarthSymbology/StyleSheet> |
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25 | #include <osgEarthSymbology/LineSymbol> |
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26 | |
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27 | #include <osgEarthDrivers/gdal/GDALOptions> |
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28 | #include <osgEarthDrivers/model_feature_geom/FeatureGeomModelOptions> |
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29 | #include <osgEarthDrivers/feature_ogr/OGRFeatureOptions> |
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30 | |
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31 | #include "Trace.h" |
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32 | #include "CmdProc.h" |
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33 | #include "ReadBuffer.h" |
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34 | #include "Types.h" |
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35 | #include "RendererCmd.h" |
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36 | #include "RenderServer.h" |
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37 | #include "Renderer.h" |
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38 | #include "PPMWriter.h" |
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39 | #include "TGAWriter.h" |
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40 | #include "ResponseQueue.h" |
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41 | #ifdef USE_READ_THREAD |
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42 | #include "CommandQueue.h" |
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43 | #endif |
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44 | |
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45 | using namespace GeoVis; |
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46 | |
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47 | static int lastCmdStatus; |
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48 | |
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49 | #ifndef USE_THREADS |
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50 | static ssize_t |
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51 | SocketWrite(const void *bytes, size_t len) |
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52 | { |
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53 | size_t ofs = 0; |
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54 | ssize_t bytesWritten; |
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55 | while ((bytesWritten = write(g_fdOut, (const char *)bytes + ofs, len - ofs)) > 0) { |
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56 | ofs += bytesWritten; |
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57 | if (ofs == len) |
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58 | break; |
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59 | } |
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60 | if (bytesWritten < 0) { |
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61 | ERROR("write: %s", strerror(errno)); |
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62 | } |
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63 | return bytesWritten; |
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64 | } |
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65 | #endif |
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66 | |
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67 | static bool |
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68 | SocketRead(char *bytes, size_t len) |
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69 | { |
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70 | ReadBuffer::BufferStatus status; |
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71 | status = g_inBufPtr->followingData((unsigned char *)bytes, len); |
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72 | TRACE("followingData status: %d", status); |
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73 | return (status == ReadBuffer::OK); |
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74 | } |
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75 | |
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76 | ssize_t |
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77 | GeoVis::queueResponse(const void *bytes, size_t len, |
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78 | Response::AllocationType allocType, |
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79 | Response::ResponseType type) |
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80 | { |
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81 | #ifdef USE_THREADS |
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82 | Response *response = new Response(type); |
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83 | response->setMessage((unsigned char *)bytes, len, allocType); |
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84 | g_outQueue->enqueue(response); |
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85 | return (ssize_t)len; |
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86 | #else |
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87 | return SocketWrite(bytes, len); |
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88 | #endif |
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89 | } |
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90 | |
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91 | static int |
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92 | ExecuteCommand(Tcl_Interp *interp, Tcl_DString *dsPtr) |
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93 | { |
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94 | int result; |
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95 | #ifdef WANT_TRACE |
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96 | char *str = Tcl_DStringValue(dsPtr); |
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97 | std::string cmd(str); |
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98 | cmd.erase(cmd.find_last_not_of(" \n\r\t")+1); |
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99 | TRACE("command %lu: '%s'", g_stats.nCommands+1, cmd.c_str()); |
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100 | #endif |
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101 | lastCmdStatus = TCL_OK; |
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102 | result = Tcl_EvalEx(interp, Tcl_DStringValue(dsPtr), |
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103 | Tcl_DStringLength(dsPtr), |
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104 | TCL_EVAL_DIRECT | TCL_EVAL_GLOBAL); |
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105 | Tcl_DStringSetLength(dsPtr, 0); |
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106 | if (lastCmdStatus == TCL_BREAK) { |
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107 | return TCL_BREAK; |
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108 | } |
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109 | lastCmdStatus = result; |
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110 | if (result != TCL_OK) { |
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111 | TRACE("Error: %d", result); |
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112 | } |
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113 | return result; |
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114 | } |
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115 | |
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116 | static int |
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117 | GetBooleanFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, bool *boolPtr) |
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118 | { |
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119 | int value; |
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120 | |
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121 | if (Tcl_GetBooleanFromObj(interp, objPtr, &value) != TCL_OK) { |
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122 | return TCL_ERROR; |
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123 | } |
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124 | *boolPtr = (bool)value; |
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125 | return TCL_OK; |
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126 | } |
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127 | |
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128 | static int |
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129 | GetFloatFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, float *valuePtr) |
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130 | { |
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131 | double value; |
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132 | |
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133 | if (Tcl_GetDoubleFromObj(interp, objPtr, &value) != TCL_OK) { |
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134 | return TCL_ERROR; |
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135 | } |
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136 | *valuePtr = (float)value; |
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137 | return TCL_OK; |
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138 | } |
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139 | |
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140 | static int |
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141 | CameraOrientOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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142 | Tcl_Obj *const *objv) |
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143 | { |
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144 | double quat[4]; |
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145 | |
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146 | if (Tcl_GetDoubleFromObj(interp, objv[2], &quat[0]) != TCL_OK || |
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147 | Tcl_GetDoubleFromObj(interp, objv[3], &quat[1]) != TCL_OK || |
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148 | Tcl_GetDoubleFromObj(interp, objv[4], &quat[2]) != TCL_OK || |
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149 | Tcl_GetDoubleFromObj(interp, objv[5], &quat[3]) != TCL_OK) { |
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150 | return TCL_ERROR; |
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151 | } |
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152 | |
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153 | g_renderer->setCameraOrientation(quat); |
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154 | return TCL_OK; |
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155 | } |
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156 | |
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157 | static int |
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158 | CameraPanOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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159 | Tcl_Obj *const *objv) |
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160 | { |
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161 | double x, y; |
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162 | |
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163 | if (Tcl_GetDoubleFromObj(interp, objv[2], &x) != TCL_OK || |
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164 | Tcl_GetDoubleFromObj(interp, objv[3], &y) != TCL_OK) { |
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165 | return TCL_ERROR; |
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166 | } |
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167 | |
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168 | g_renderer->panCamera(x, y); |
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169 | return TCL_OK; |
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170 | } |
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171 | |
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172 | static int |
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173 | CameraResetOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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174 | Tcl_Obj *const *objv) |
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175 | { |
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176 | if (objc == 3) { |
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177 | const char *string = Tcl_GetString(objv[2]); |
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178 | char c = string[0]; |
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179 | if ((c != 'a') || (strcmp(string, "all") != 0)) { |
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180 | Tcl_AppendResult(interp, "bad camera reset option \"", string, |
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181 | "\": should be all", (char*)NULL); |
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182 | return TCL_ERROR; |
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183 | } |
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184 | g_renderer->resetCamera(true); |
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185 | } else { |
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186 | g_renderer->resetCamera(false); |
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187 | } |
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188 | return TCL_OK; |
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189 | } |
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190 | |
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191 | static int |
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192 | CameraRotateOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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193 | Tcl_Obj *const *objv) |
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194 | { |
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195 | double x, y; |
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196 | |
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197 | if (Tcl_GetDoubleFromObj(interp, objv[2], &x) != TCL_OK || |
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198 | Tcl_GetDoubleFromObj(interp, objv[3], &y) != TCL_OK) { |
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199 | return TCL_ERROR; |
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200 | } |
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201 | |
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202 | g_renderer->rotateCamera(x, y); |
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203 | return TCL_OK; |
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204 | } |
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205 | |
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206 | static int |
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207 | CameraThrowOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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208 | Tcl_Obj *const *objv) |
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209 | { |
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210 | bool state; |
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211 | |
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212 | if (GetBooleanFromObj(interp, objv[2], &state) != TCL_OK) { |
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213 | return TCL_ERROR; |
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214 | } |
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215 | |
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216 | g_renderer->setThrowingEnabled(state); |
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217 | return TCL_OK; |
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218 | } |
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219 | |
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220 | static int |
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221 | CameraZoomOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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222 | Tcl_Obj *const *objv) |
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223 | { |
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224 | double z; |
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225 | |
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226 | if (Tcl_GetDoubleFromObj(interp, objv[2], &z) != TCL_OK) { |
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227 | return TCL_ERROR; |
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228 | } |
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229 | |
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230 | g_renderer->zoomCamera(z); |
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231 | return TCL_OK; |
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232 | } |
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233 | |
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234 | static Rappture::CmdSpec cameraOps[] = { |
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235 | {"orient", 1, CameraOrientOp, 6, 6, "qw qx qy qz"}, |
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236 | {"pan", 1, CameraPanOp, 4, 4, "panX panY"}, |
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237 | {"reset", 2, CameraResetOp, 2, 3, "?all?"}, |
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238 | {"rotate", 2, CameraRotateOp, 4, 4, "azimuth elevation"}, |
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239 | {"throw", 1, CameraThrowOp, 3, 3, "bool"}, |
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240 | {"zoom", 1, CameraZoomOp, 3, 3, "zoomAmount"} |
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241 | }; |
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242 | static int nCameraOps = NumCmdSpecs(cameraOps); |
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243 | |
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244 | static int |
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245 | CameraCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
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246 | Tcl_Obj *const *objv) |
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247 | { |
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248 | Tcl_ObjCmdProc *proc; |
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249 | |
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250 | proc = Rappture::GetOpFromObj(interp, nCameraOps, cameraOps, |
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251 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
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252 | if (proc == NULL) { |
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253 | return TCL_ERROR; |
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254 | } |
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255 | return (*proc) (clientData, interp, objc, objv); |
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256 | } |
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257 | |
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258 | static int |
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259 | ClientInfoCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
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260 | Tcl_Obj *const *objv) |
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261 | { |
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262 | Tcl_DString ds; |
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263 | Tcl_Obj *objPtr, *listObjPtr, **items; |
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264 | int numItems; |
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265 | char buf[BUFSIZ]; |
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266 | const char *string; |
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267 | int length; |
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268 | int result; |
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269 | static bool first = true; |
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270 | |
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271 | /* Use the initial client key value pairs as the parts for a generating |
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272 | * a unique file name. */ |
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273 | int fd = GeoVis::getStatsFile(interp, objv[1]); |
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274 | if (fd < 0) { |
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275 | Tcl_AppendResult(interp, "can't open stats file: ", |
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276 | Tcl_PosixError(interp), (char *)NULL); |
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277 | return TCL_ERROR; |
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278 | } |
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279 | listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL); |
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280 | Tcl_IncrRefCount(listObjPtr); |
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281 | if (first) { |
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282 | first = false; |
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283 | objPtr = Tcl_NewStringObj("render_start", 12); |
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284 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
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285 | /* server */ |
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286 | objPtr = Tcl_NewStringObj("server", 6); |
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287 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
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288 | objPtr = Tcl_NewStringObj("geovis", 6); |
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289 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
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290 | /* pid */ |
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291 | objPtr = Tcl_NewStringObj("pid", 3); |
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292 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
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293 | Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewIntObj(getpid())); |
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294 | /* machine */ |
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295 | objPtr = Tcl_NewStringObj("machine", 7); |
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296 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
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297 | gethostname(buf, BUFSIZ-1); |
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298 | buf[BUFSIZ-1] = '\0'; |
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299 | objPtr = Tcl_NewStringObj(buf, -1); |
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300 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
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301 | } else { |
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302 | objPtr = Tcl_NewStringObj("render_info", 11); |
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303 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
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304 | } |
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305 | /* date */ |
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306 | Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj("date", 4)); |
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307 | strcpy(buf, ctime(&GeoVis::g_stats.start.tv_sec)); |
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308 | buf[strlen(buf) - 1] = '\0'; |
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309 | Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj(buf, -1)); |
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310 | /* date_secs */ |
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311 | Tcl_ListObjAppendElement(interp, listObjPtr, |
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312 | Tcl_NewStringObj("date_secs", 9)); |
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313 | Tcl_ListObjAppendElement(interp, listObjPtr, |
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314 | Tcl_NewLongObj(GeoVis::g_stats.start.tv_sec)); |
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315 | /* Client arguments. */ |
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316 | if (Tcl_ListObjGetElements(interp, objv[1], &numItems, &items) != TCL_OK) { |
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317 | return TCL_ERROR; |
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318 | } |
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319 | for (int i = 0; i < numItems; i++) { |
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320 | Tcl_ListObjAppendElement(interp, listObjPtr, items[i]); |
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321 | } |
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322 | Tcl_DStringInit(&ds); |
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323 | string = Tcl_GetStringFromObj(listObjPtr, &length); |
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324 | Tcl_DStringAppend(&ds, string, length); |
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325 | Tcl_DStringAppend(&ds, "\n", 1); |
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326 | result = GeoVis::writeToStatsFile(fd, Tcl_DStringValue(&ds), |
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327 | Tcl_DStringLength(&ds)); |
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328 | Tcl_DStringFree(&ds); |
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329 | Tcl_DecrRefCount(listObjPtr); |
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330 | return result; |
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331 | } |
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332 | |
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333 | static int |
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334 | ImageFlushCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
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335 | Tcl_Obj *const *objv) |
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336 | { |
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337 | lastCmdStatus = TCL_BREAK; |
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338 | return TCL_OK; |
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339 | } |
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340 | |
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341 | static int |
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342 | KeyPressOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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343 | Tcl_Obj *const *objv) |
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344 | { |
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345 | int key; |
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346 | if (Tcl_GetIntFromObj(interp, objv[2], &key) != TCL_OK) { |
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347 | return TCL_ERROR; |
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348 | } |
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349 | |
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350 | g_renderer->keyPress(key); |
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351 | return TCL_OK; |
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352 | } |
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353 | |
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354 | static int |
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355 | KeyReleaseOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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356 | Tcl_Obj *const *objv) |
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357 | { |
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358 | int key; |
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359 | if (Tcl_GetIntFromObj(interp, objv[2], &key) != TCL_OK) { |
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360 | return TCL_ERROR; |
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361 | } |
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362 | |
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363 | g_renderer->keyRelease(key); |
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364 | return TCL_OK; |
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365 | } |
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366 | |
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367 | static Rappture::CmdSpec keyOps[] = { |
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368 | {"press", 1, KeyPressOp, 3, 3, "key"}, |
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369 | {"release", 1, KeyReleaseOp, 3, 3, "key"}, |
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370 | }; |
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371 | static int nKeyOps = NumCmdSpecs(keyOps); |
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372 | |
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373 | static int |
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374 | KeyCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
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375 | Tcl_Obj *const *objv) |
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376 | { |
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377 | Tcl_ObjCmdProc *proc; |
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378 | |
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379 | proc = Rappture::GetOpFromObj(interp, nKeyOps, keyOps, |
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380 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
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381 | if (proc == NULL) { |
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382 | return TCL_ERROR; |
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383 | } |
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384 | return (*proc) (clientData, interp, objc, objv); |
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385 | } |
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386 | |
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387 | static int |
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388 | MapLayerAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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389 | Tcl_Obj *const *objv) |
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390 | { |
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391 | char *type = Tcl_GetString(objv[3]); |
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392 | if (type[0] == 'i' && strcmp(type, "image") == 0) { |
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393 | osgEarth::Drivers::GDALOptions opts; |
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394 | char *url = Tcl_GetString(objv[4]); |
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395 | char *name = Tcl_GetString(objv[5]); |
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396 | |
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397 | opts.url() = url; |
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398 | |
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399 | g_renderer->addImageLayer(name, opts); |
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400 | } else if (type[0] == 'e' && strcmp(type, "elevation") == 0) { |
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401 | osgEarth::Drivers::GDALOptions opts; |
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402 | char *url = Tcl_GetString(objv[4]); |
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403 | char *name = Tcl_GetString(objv[5]); |
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404 | |
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405 | opts.url() = url; |
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406 | |
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407 | g_renderer->addElevationLayer(name, opts); |
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408 | } else if (type[0] == 'm' && strcmp(type, "model") == 0) { |
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409 | osgEarth::Drivers::OGRFeatureOptions opts; |
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410 | char *url = Tcl_GetString(objv[4]); |
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411 | char *name = Tcl_GetString(objv[5]); |
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412 | opts.url() = url; |
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413 | |
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414 | osgEarth::Symbology::Style style; |
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415 | osgEarth::Symbology::LineSymbol *ls = style.getOrCreateSymbol<osgEarth::Symbology::LineSymbol>(); |
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416 | ls->stroke()->color() = osgEarth::Symbology::Color::Black; |
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417 | ls->stroke()->width() = 2.0f; |
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418 | |
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419 | osgEarth::Drivers::FeatureGeomModelOptions geomOpts; |
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420 | geomOpts.featureOptions() = opts; |
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421 | geomOpts.styles() = new osgEarth::Symbology::StyleSheet(); |
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422 | geomOpts.styles()->addStyle(style); |
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423 | geomOpts.enableLighting() = false; |
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424 | g_renderer->addModelLayer(name, geomOpts); |
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425 | } else { |
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426 | Tcl_AppendResult(interp, "unknown map layer type \"", type, |
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427 | "\": should be 'image', 'elevation' or 'model'", (char*)NULL); |
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428 | return TCL_ERROR; |
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429 | } |
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430 | return TCL_OK; |
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431 | } |
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432 | |
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433 | static int |
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434 | MapLayerDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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435 | Tcl_Obj *const *objv) |
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436 | { |
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437 | if (objc > 3) { |
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438 | char *name = Tcl_GetString(objv[3]); |
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439 | g_renderer->removeImageLayer(name); |
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440 | g_renderer->removeElevationLayer(name); |
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441 | g_renderer->removeModelLayer(name); |
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442 | } else { |
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443 | g_renderer->clearMap(); |
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444 | } |
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445 | |
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446 | return TCL_OK; |
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447 | } |
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448 | |
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449 | static int |
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450 | MapLayerMoveOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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451 | Tcl_Obj *const *objv) |
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452 | { |
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453 | int pos; |
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454 | if (Tcl_GetIntFromObj(interp, objv[3], &pos) != TCL_OK) { |
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455 | return TCL_ERROR; |
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456 | } |
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457 | char *name = Tcl_GetString(objv[4]); |
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458 | if (pos < 0) { |
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459 | Tcl_AppendResult(interp, "bad layer pos ", pos, |
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460 | ": must be positive", (char*)NULL); |
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461 | return TCL_ERROR; |
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462 | } |
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463 | g_renderer->moveImageLayer(name, (unsigned int)pos); |
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464 | g_renderer->moveElevationLayer(name, (unsigned int)pos); |
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465 | g_renderer->moveModelLayer(name, (unsigned int)pos); |
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466 | |
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467 | return TCL_OK; |
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468 | } |
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469 | |
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470 | static int |
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471 | MapLayerOpacityOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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472 | Tcl_Obj *const *objv) |
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473 | { |
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474 | double opacity; |
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475 | if (Tcl_GetDoubleFromObj(interp, objv[3], &opacity) != TCL_OK) { |
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476 | return TCL_ERROR; |
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477 | } |
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478 | char *name = Tcl_GetString(objv[4]); |
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479 | if (opacity < 0.0 || opacity > 1.0) { |
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480 | Tcl_AppendResult(interp, "bad layer opacity ", opacity, |
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481 | ": must be [0,1]", (char*)NULL); |
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482 | return TCL_ERROR; |
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483 | } |
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484 | g_renderer->setImageLayerOpacity(name, opacity); |
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485 | g_renderer->setModelLayerOpacity(name, opacity); |
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486 | |
---|
487 | return TCL_OK; |
---|
488 | } |
---|
489 | |
---|
490 | static int |
---|
491 | MapLayerVisibleOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
492 | Tcl_Obj *const *objv) |
---|
493 | { |
---|
494 | bool visible; |
---|
495 | if (GetBooleanFromObj(interp, objv[3], &visible) != TCL_OK) { |
---|
496 | return TCL_ERROR; |
---|
497 | } |
---|
498 | char *name = Tcl_GetString(objv[4]); |
---|
499 | |
---|
500 | g_renderer->setImageLayerVisibility(name, visible); |
---|
501 | g_renderer->setElevationLayerVisibility(name, visible); |
---|
502 | g_renderer->setModelLayerVisibility(name, visible); |
---|
503 | |
---|
504 | return TCL_OK; |
---|
505 | } |
---|
506 | |
---|
507 | static Rappture::CmdSpec mapLayerOps[] = { |
---|
508 | {"add", 1, MapLayerAddOp, 6, 6, "type url name"}, |
---|
509 | {"delete", 1, MapLayerDeleteOp, 3, 4, "?name?"}, |
---|
510 | {"move", 1, MapLayerMoveOp, 5, 5, "pos name"}, |
---|
511 | {"opacity", 1, MapLayerOpacityOp, 5, 5, "opacity ?name?"}, |
---|
512 | {"visible", 1, MapLayerVisibleOp, 5, 5, "bool ?name?"}, |
---|
513 | }; |
---|
514 | static int nMapLayerOps = NumCmdSpecs(mapLayerOps); |
---|
515 | |
---|
516 | static int |
---|
517 | MapLayerOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
518 | Tcl_Obj *const *objv) |
---|
519 | { |
---|
520 | Tcl_ObjCmdProc *proc; |
---|
521 | |
---|
522 | proc = Rappture::GetOpFromObj(interp, nMapLayerOps, mapLayerOps, |
---|
523 | Rappture::CMDSPEC_ARG2, objc, objv, 0); |
---|
524 | if (proc == NULL) { |
---|
525 | return TCL_ERROR; |
---|
526 | } |
---|
527 | return (*proc) (clientData, interp, objc, objv); |
---|
528 | } |
---|
529 | |
---|
530 | static int |
---|
531 | MapLoadOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
532 | Tcl_Obj *const *objv) |
---|
533 | { |
---|
534 | char *opt = Tcl_GetString(objv[2]); |
---|
535 | if (opt[0] == 'f' && strcmp(opt, "file") == 0) { |
---|
536 | g_renderer->loadEarthFile(Tcl_GetString(objv[3])); |
---|
537 | } else if (opt[0] == 'u' && strcmp(opt, "url") == 0) { |
---|
538 | std::ostringstream path; |
---|
539 | path << "server:" << Tcl_GetString(objv[3]); |
---|
540 | g_renderer->loadEarthFile(path.str().c_str()); |
---|
541 | } else if (opt[0] == 'd' && strcmp(opt, "data") == 0) { |
---|
542 | opt = Tcl_GetString(objv[3]); |
---|
543 | if (opt[0] != 'f' || strcmp(opt, "follows") != 0) { |
---|
544 | return TCL_ERROR; |
---|
545 | } |
---|
546 | int len; |
---|
547 | if (Tcl_GetIntFromObj(interp, objv[4], &len) != TCL_OK) { |
---|
548 | return TCL_ERROR; |
---|
549 | } |
---|
550 | // Read Earth file from socket |
---|
551 | char *buf = (char *)malloc((size_t)len); |
---|
552 | SocketRead(buf, (size_t)len); |
---|
553 | std::ostringstream path; |
---|
554 | path << "/tmp/tmp" << getpid() << ".earth"; |
---|
555 | FILE *tmpFile = fopen(path.str().c_str(), "w"); |
---|
556 | fwrite(buf, len, 1, tmpFile); |
---|
557 | fclose(tmpFile); |
---|
558 | g_renderer->loadEarthFile(path.str().c_str()); |
---|
559 | unlink(path.str().c_str()); |
---|
560 | free(buf); |
---|
561 | } else { |
---|
562 | return TCL_ERROR; |
---|
563 | } |
---|
564 | return TCL_OK; |
---|
565 | } |
---|
566 | |
---|
567 | static int |
---|
568 | MapResetOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
569 | Tcl_Obj *const *objv) |
---|
570 | { |
---|
571 | char *typeStr = Tcl_GetString(objv[2]); |
---|
572 | osgEarth::MapOptions::CoordinateSystemType type; |
---|
573 | if (typeStr[0] == 'g' && strcmp(typeStr, "geocentric") == 0) { |
---|
574 | type = osgEarth::MapOptions::CSTYPE_GEOCENTRIC; |
---|
575 | } else if (typeStr[0] == 'g' && strcmp(typeStr, "geocentric_cube") == 0) { |
---|
576 | type = osgEarth::MapOptions::CSTYPE_GEOCENTRIC_CUBE; |
---|
577 | } else if (typeStr[0] == 'p' && strcmp(typeStr, "projected") == 0) { |
---|
578 | type = osgEarth::MapOptions::CSTYPE_PROJECTED; |
---|
579 | } else { |
---|
580 | Tcl_AppendResult(interp, "bad map type \"", typeStr, |
---|
581 | "\": must be geocentric, geocentric_cube or projected", (char*)NULL); |
---|
582 | return TCL_ERROR; |
---|
583 | } |
---|
584 | |
---|
585 | char *profile = NULL; |
---|
586 | if (objc > 3) { |
---|
587 | profile = Tcl_GetString(objv[3]); |
---|
588 | } |
---|
589 | |
---|
590 | g_renderer->resetMap(type, profile); |
---|
591 | |
---|
592 | return TCL_OK; |
---|
593 | } |
---|
594 | |
---|
595 | static Rappture::CmdSpec mapOps[] = { |
---|
596 | {"layer", 2, MapLayerOp, 3, 6, "op ?params...?"}, |
---|
597 | {"load", 2, MapLoadOp, 4, 5, "options"}, |
---|
598 | {"reset", 1, MapResetOp, 3, 4, "type ?profile?"}, |
---|
599 | }; |
---|
600 | static int nMapOps = NumCmdSpecs(mapOps); |
---|
601 | |
---|
602 | static int |
---|
603 | MapCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
604 | Tcl_Obj *const *objv) |
---|
605 | { |
---|
606 | Tcl_ObjCmdProc *proc; |
---|
607 | |
---|
608 | proc = Rappture::GetOpFromObj(interp, nMapOps, mapOps, |
---|
609 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
---|
610 | if (proc == NULL) { |
---|
611 | return TCL_ERROR; |
---|
612 | } |
---|
613 | return (*proc) (clientData, interp, objc, objv); |
---|
614 | } |
---|
615 | |
---|
616 | static int |
---|
617 | MouseClickOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
618 | Tcl_Obj *const *objv) |
---|
619 | { |
---|
620 | int button; |
---|
621 | double x, y; |
---|
622 | |
---|
623 | if (Tcl_GetIntFromObj(interp, objv[2], &button) != TCL_OK) { |
---|
624 | return TCL_ERROR; |
---|
625 | } |
---|
626 | if (Tcl_GetDoubleFromObj(interp, objv[3], &x) != TCL_OK || |
---|
627 | Tcl_GetDoubleFromObj(interp, objv[4], &y) != TCL_OK) { |
---|
628 | return TCL_ERROR; |
---|
629 | } |
---|
630 | |
---|
631 | g_renderer->mouseClick(button, x, y); |
---|
632 | return TCL_OK; |
---|
633 | } |
---|
634 | |
---|
635 | static int |
---|
636 | MouseDoubleClickOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
637 | Tcl_Obj *const *objv) |
---|
638 | { |
---|
639 | int button; |
---|
640 | double x, y; |
---|
641 | |
---|
642 | if (Tcl_GetIntFromObj(interp, objv[2], &button) != TCL_OK) { |
---|
643 | return TCL_ERROR; |
---|
644 | } |
---|
645 | if (Tcl_GetDoubleFromObj(interp, objv[3], &x) != TCL_OK || |
---|
646 | Tcl_GetDoubleFromObj(interp, objv[4], &y) != TCL_OK) { |
---|
647 | return TCL_ERROR; |
---|
648 | } |
---|
649 | |
---|
650 | g_renderer->mouseDoubleClick(button, x, y); |
---|
651 | return TCL_OK; |
---|
652 | } |
---|
653 | |
---|
654 | static int |
---|
655 | MouseDragOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
656 | Tcl_Obj *const *objv) |
---|
657 | { |
---|
658 | int button; |
---|
659 | double x, y; |
---|
660 | |
---|
661 | if (Tcl_GetIntFromObj(interp, objv[2], &button) != TCL_OK) { |
---|
662 | return TCL_ERROR; |
---|
663 | } |
---|
664 | if (Tcl_GetDoubleFromObj(interp, objv[3], &x) != TCL_OK || |
---|
665 | Tcl_GetDoubleFromObj(interp, objv[4], &y) != TCL_OK) { |
---|
666 | return TCL_ERROR; |
---|
667 | } |
---|
668 | |
---|
669 | g_renderer->mouseDrag(button, x, y); |
---|
670 | return TCL_OK; |
---|
671 | } |
---|
672 | |
---|
673 | static int |
---|
674 | MouseMotionOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
675 | Tcl_Obj *const *objv) |
---|
676 | { |
---|
677 | double x, y; |
---|
678 | |
---|
679 | if (Tcl_GetDoubleFromObj(interp, objv[2], &x) != TCL_OK || |
---|
680 | Tcl_GetDoubleFromObj(interp, objv[3], &y) != TCL_OK) { |
---|
681 | return TCL_ERROR; |
---|
682 | } |
---|
683 | |
---|
684 | g_renderer->mouseMotion(x, y); |
---|
685 | return TCL_OK; |
---|
686 | } |
---|
687 | |
---|
688 | static int |
---|
689 | MouseReleaseOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
690 | Tcl_Obj *const *objv) |
---|
691 | { |
---|
692 | int button; |
---|
693 | double x, y; |
---|
694 | |
---|
695 | if (Tcl_GetIntFromObj(interp, objv[2], &button) != TCL_OK) { |
---|
696 | return TCL_ERROR; |
---|
697 | } |
---|
698 | if (Tcl_GetDoubleFromObj(interp, objv[3], &x) != TCL_OK || |
---|
699 | Tcl_GetDoubleFromObj(interp, objv[4], &y) != TCL_OK) { |
---|
700 | return TCL_ERROR; |
---|
701 | } |
---|
702 | |
---|
703 | g_renderer->mouseRelease(button, x, y); |
---|
704 | return TCL_OK; |
---|
705 | } |
---|
706 | |
---|
707 | static int |
---|
708 | MouseScrollOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
709 | Tcl_Obj *const *objv) |
---|
710 | { |
---|
711 | int direction; |
---|
712 | |
---|
713 | if (Tcl_GetIntFromObj(interp, objv[2], &direction) != TCL_OK) { |
---|
714 | return TCL_ERROR; |
---|
715 | } |
---|
716 | |
---|
717 | g_renderer->mouseScroll(direction); |
---|
718 | return TCL_OK; |
---|
719 | } |
---|
720 | |
---|
721 | static Rappture::CmdSpec mouseOps[] = { |
---|
722 | {"click", 1, MouseClickOp, 5, 5, "button x y"}, |
---|
723 | {"dblclick", 2, MouseDoubleClickOp, 5, 5, "button x y"}, |
---|
724 | {"drag", 2, MouseDragOp, 5, 5, "button x y"}, |
---|
725 | {"motion", 1, MouseMotionOp, 4, 4, "x y"}, |
---|
726 | {"release", 1, MouseReleaseOp, 5, 5, "button x y"}, |
---|
727 | {"scroll", 1, MouseScrollOp, 3, 3, "direction"}, |
---|
728 | }; |
---|
729 | static int nMouseOps = NumCmdSpecs(mouseOps); |
---|
730 | |
---|
731 | static int |
---|
732 | MouseCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
733 | Tcl_Obj *const *objv) |
---|
734 | { |
---|
735 | Tcl_ObjCmdProc *proc; |
---|
736 | |
---|
737 | proc = Rappture::GetOpFromObj(interp, nMouseOps, mouseOps, |
---|
738 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
---|
739 | if (proc == NULL) { |
---|
740 | return TCL_ERROR; |
---|
741 | } |
---|
742 | return (*proc) (clientData, interp, objc, objv); |
---|
743 | } |
---|
744 | |
---|
745 | static int |
---|
746 | RendererRenderOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
747 | Tcl_Obj *const *objv) |
---|
748 | { |
---|
749 | g_renderer->eventuallyRender(); |
---|
750 | return TCL_OK; |
---|
751 | } |
---|
752 | |
---|
753 | static Rappture::CmdSpec rendererOps[] = { |
---|
754 | {"render", 1, RendererRenderOp, 2, 2, ""}, |
---|
755 | }; |
---|
756 | static int nRendererOps = NumCmdSpecs(rendererOps); |
---|
757 | |
---|
758 | static int |
---|
759 | RendererCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
760 | Tcl_Obj *const *objv) |
---|
761 | { |
---|
762 | Tcl_ObjCmdProc *proc; |
---|
763 | |
---|
764 | proc = Rappture::GetOpFromObj(interp, nRendererOps, rendererOps, |
---|
765 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
---|
766 | if (proc == NULL) { |
---|
767 | return TCL_ERROR; |
---|
768 | } |
---|
769 | return (*proc) (clientData, interp, objc, objv); |
---|
770 | } |
---|
771 | |
---|
772 | static int |
---|
773 | ScreenBgColorOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
774 | Tcl_Obj *const *objv) |
---|
775 | { |
---|
776 | float color[3]; |
---|
777 | |
---|
778 | if (GetFloatFromObj(interp, objv[2], &color[0]) != TCL_OK || |
---|
779 | GetFloatFromObj(interp, objv[3], &color[1]) != TCL_OK || |
---|
780 | GetFloatFromObj(interp, objv[4], &color[2]) != TCL_OK) { |
---|
781 | return TCL_ERROR; |
---|
782 | } |
---|
783 | |
---|
784 | g_renderer->setBackgroundColor(color); |
---|
785 | return TCL_OK; |
---|
786 | } |
---|
787 | |
---|
788 | static int |
---|
789 | ScreenSizeOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
790 | Tcl_Obj *const *objv) |
---|
791 | { |
---|
792 | int width, height; |
---|
793 | |
---|
794 | if (Tcl_GetIntFromObj(interp, objv[2], &width) != TCL_OK || |
---|
795 | Tcl_GetIntFromObj(interp, objv[3], &height) != TCL_OK) { |
---|
796 | return TCL_ERROR; |
---|
797 | } |
---|
798 | |
---|
799 | g_renderer->setWindowSize(width, height); |
---|
800 | return TCL_OK; |
---|
801 | } |
---|
802 | |
---|
803 | static Rappture::CmdSpec screenOps[] = { |
---|
804 | {"bgcolor", 1, ScreenBgColorOp, 5, 5, "r g b"}, |
---|
805 | {"size", 1, ScreenSizeOp, 4, 4, "width height"} |
---|
806 | }; |
---|
807 | static int nScreenOps = NumCmdSpecs(screenOps); |
---|
808 | |
---|
809 | static int |
---|
810 | ScreenCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
811 | Tcl_Obj *const *objv) |
---|
812 | { |
---|
813 | Tcl_ObjCmdProc *proc; |
---|
814 | |
---|
815 | proc = Rappture::GetOpFromObj(interp, nScreenOps, screenOps, |
---|
816 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
---|
817 | if (proc == NULL) { |
---|
818 | return TCL_ERROR; |
---|
819 | } |
---|
820 | return (*proc) (clientData, interp, objc, objv); |
---|
821 | } |
---|
822 | |
---|
823 | #ifdef USE_READ_THREAD |
---|
824 | int |
---|
825 | GeoVis::queueCommands(Tcl_Interp *interp, |
---|
826 | ClientData clientData, |
---|
827 | ReadBuffer *inBufPtr) |
---|
828 | { |
---|
829 | Tcl_DString commandString; |
---|
830 | Tcl_DStringInit(&commandString); |
---|
831 | fd_set readFds; |
---|
832 | |
---|
833 | FD_ZERO(&readFds); |
---|
834 | FD_SET(inBufPtr->file(), &readFds); |
---|
835 | while (inBufPtr->isLineAvailable() || |
---|
836 | (select(1, &readFds, NULL, NULL, NULL) > 0)) { |
---|
837 | size_t numBytes; |
---|
838 | unsigned char *buffer; |
---|
839 | |
---|
840 | /* A short read is treated as an error here because we assume that we |
---|
841 | * will always get commands line by line. */ |
---|
842 | if (inBufPtr->getLine(&numBytes, &buffer) != ReadBuffer::OK) { |
---|
843 | /* Terminate the server if we can't communicate with the client |
---|
844 | * anymore. */ |
---|
845 | if (inBufPtr->status() == ReadBuffer::ENDFILE) { |
---|
846 | TRACE("Exiting server on EOF from client"); |
---|
847 | return -1; |
---|
848 | } else { |
---|
849 | ERROR("Exiting server, failed to read from client: %s", |
---|
850 | strerror(errno)); |
---|
851 | return -1; |
---|
852 | } |
---|
853 | } |
---|
854 | Tcl_DStringAppend(&commandString, (char *)buffer, numBytes); |
---|
855 | if (Tcl_CommandComplete(Tcl_DStringValue(&commandString))) { |
---|
856 | // Add to queue |
---|
857 | Command *command = new Command(Command::COMMAND); |
---|
858 | command->setMessage((unsigned char *)Tcl_DStringValue(&commandString), |
---|
859 | Tcl_DStringLength(&commandString), Command::VOLATILE); |
---|
860 | g_inQueue->enqueue(command); |
---|
861 | Tcl_DStringSetLength(&commandString, 0); |
---|
862 | } |
---|
863 | FD_SET(inBufPtr->file(), &readFds); |
---|
864 | } |
---|
865 | |
---|
866 | return 1; |
---|
867 | } |
---|
868 | #endif |
---|
869 | |
---|
870 | /** |
---|
871 | * \brief Execute commands from client in Tcl interpreter |
---|
872 | * |
---|
873 | * In this threaded model, the select call is for event compression. We |
---|
874 | * want to execute render server commands as long as they keep coming. |
---|
875 | * This lets us execute a stream of many commands but render once. This |
---|
876 | * benefits camera movements, screen resizing, and opacity changes |
---|
877 | * (using a slider on the client). The down side is you don't render |
---|
878 | * until there's a lull in the command stream. If the client needs an |
---|
879 | * image, it can issue an "imgflush" command. That breaks us out of the |
---|
880 | * read loop. |
---|
881 | */ |
---|
882 | int |
---|
883 | GeoVis::processCommands(Tcl_Interp *interp, |
---|
884 | ClientData clientData, |
---|
885 | ReadBuffer *inBufPtr, |
---|
886 | int fdOut, |
---|
887 | long timeout) |
---|
888 | { |
---|
889 | int ret = 1; |
---|
890 | int status = TCL_OK; |
---|
891 | |
---|
892 | Tcl_DString command; |
---|
893 | Tcl_DStringInit(&command); |
---|
894 | fd_set readFds; |
---|
895 | struct timeval tv, *tvPtr; |
---|
896 | |
---|
897 | FD_ZERO(&readFds); |
---|
898 | FD_SET(inBufPtr->file(), &readFds); |
---|
899 | tvPtr = NULL; /* Wait for the first read. This is so |
---|
900 | * that we don't spin when no data is |
---|
901 | * available. */ |
---|
902 | if (timeout >= 0L) { |
---|
903 | tv.tv_sec = 0L; |
---|
904 | tv.tv_usec = timeout; |
---|
905 | tvPtr = &tv; |
---|
906 | } else { |
---|
907 | TRACE("Blocking on select()"); |
---|
908 | } |
---|
909 | while (inBufPtr->isLineAvailable() || |
---|
910 | (select(1, &readFds, NULL, NULL, tvPtr) > 0)) { |
---|
911 | size_t numBytes; |
---|
912 | unsigned char *buffer; |
---|
913 | |
---|
914 | /* A short read is treated as an error here because we assume that we |
---|
915 | * will always get commands line by line. */ |
---|
916 | if (inBufPtr->getLine(&numBytes, &buffer) != ReadBuffer::OK) { |
---|
917 | /* Terminate the server if we can't communicate with the client |
---|
918 | * anymore. */ |
---|
919 | if (inBufPtr->status() == ReadBuffer::ENDFILE) { |
---|
920 | TRACE("Exiting server on EOF from client"); |
---|
921 | return -1; |
---|
922 | } else { |
---|
923 | ERROR("Exiting server, failed to read from client: %s", |
---|
924 | strerror(errno)); |
---|
925 | return -1; |
---|
926 | } |
---|
927 | } |
---|
928 | Tcl_DStringAppend(&command, (char *)buffer, numBytes); |
---|
929 | if (Tcl_CommandComplete(Tcl_DStringValue(&command))) { |
---|
930 | struct timeval start, finish; |
---|
931 | gettimeofday(&start, NULL); |
---|
932 | status = ExecuteCommand(interp, &command); |
---|
933 | gettimeofday(&finish, NULL); |
---|
934 | g_stats.cmdTime += (MSECS_ELAPSED(start, finish) / 1.0e+3); |
---|
935 | g_stats.nCommands++; |
---|
936 | if (status == TCL_BREAK) { |
---|
937 | return 2; /* This was caused by a "imgflush" |
---|
938 | * command. Break out of the read loop |
---|
939 | * and allow a new image to be |
---|
940 | * rendered. */ |
---|
941 | } else { //if (status != TCL_OK) { |
---|
942 | ret = 0; |
---|
943 | if (handleError(interp, clientData, status, fdOut) < 0) { |
---|
944 | return -1; |
---|
945 | } |
---|
946 | } |
---|
947 | if (status == TCL_OK) { |
---|
948 | ret = 3; |
---|
949 | } |
---|
950 | } |
---|
951 | |
---|
952 | tv.tv_sec = tv.tv_usec = 0L; /* On successive reads, we break out |
---|
953 | * if no data is available. */ |
---|
954 | FD_SET(inBufPtr->file(), &readFds); |
---|
955 | tvPtr = &tv; |
---|
956 | } |
---|
957 | |
---|
958 | return ret; |
---|
959 | } |
---|
960 | |
---|
961 | /** |
---|
962 | * \brief Send error message to client socket |
---|
963 | */ |
---|
964 | int |
---|
965 | GeoVis::handleError(Tcl_Interp *interp, |
---|
966 | ClientData clientData, |
---|
967 | int status, int fdOut) |
---|
968 | { |
---|
969 | const char *string; |
---|
970 | int nBytes; |
---|
971 | |
---|
972 | if (status != TCL_OK) { |
---|
973 | string = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY); |
---|
974 | nBytes = strlen(string); |
---|
975 | if (nBytes > 0) { |
---|
976 | TRACE("status=%d errorInfo=(%s)", status, string); |
---|
977 | |
---|
978 | std::ostringstream oss; |
---|
979 | oss << "nv>viserror -type internal_error -token " << g_stats.nCommands << " -bytes " << nBytes << "\n" << string; |
---|
980 | nBytes = oss.str().length(); |
---|
981 | |
---|
982 | if (queueResponse(oss.str().c_str(), nBytes, Response::VOLATILE, Response::ERROR) < 0) { |
---|
983 | return -1; |
---|
984 | } |
---|
985 | } |
---|
986 | } |
---|
987 | |
---|
988 | string = getUserMessages(); |
---|
989 | nBytes = strlen(string); |
---|
990 | if (nBytes > 0) { |
---|
991 | TRACE("userError=(%s)", string); |
---|
992 | |
---|
993 | std::ostringstream oss; |
---|
994 | oss << "nv>viserror -type error -token " << g_stats.nCommands << " -bytes " << nBytes << "\n" << string; |
---|
995 | nBytes = oss.str().length(); |
---|
996 | |
---|
997 | if (queueResponse(oss.str().c_str(), nBytes, Response::VOLATILE, Response::ERROR) < 0) { |
---|
998 | return -1; |
---|
999 | } |
---|
1000 | |
---|
1001 | clearUserMessages(); |
---|
1002 | } |
---|
1003 | |
---|
1004 | return 0; |
---|
1005 | } |
---|
1006 | |
---|
1007 | /** |
---|
1008 | * \brief Create Tcl interpreter and add commands |
---|
1009 | * |
---|
1010 | * \return The initialized Tcl interpreter |
---|
1011 | */ |
---|
1012 | void |
---|
1013 | GeoVis::initTcl(Tcl_Interp *interp, ClientData clientData) |
---|
1014 | { |
---|
1015 | Tcl_MakeSafe(interp); |
---|
1016 | Tcl_CreateObjCommand(interp, "camera", CameraCmd, clientData, NULL); |
---|
1017 | Tcl_CreateObjCommand(interp, "clientinfo", ClientInfoCmd, clientData, NULL); |
---|
1018 | Tcl_CreateObjCommand(interp, "imgflush", ImageFlushCmd, clientData, NULL); |
---|
1019 | Tcl_CreateObjCommand(interp, "key", KeyCmd, clientData, NULL); |
---|
1020 | Tcl_CreateObjCommand(interp, "map", MapCmd, clientData, NULL); |
---|
1021 | Tcl_CreateObjCommand(interp, "mouse", MouseCmd, clientData, NULL); |
---|
1022 | Tcl_CreateObjCommand(interp, "renderer", RendererCmd, clientData, NULL); |
---|
1023 | Tcl_CreateObjCommand(interp, "screen", ScreenCmd, clientData, NULL); |
---|
1024 | } |
---|
1025 | |
---|
1026 | /** |
---|
1027 | * \brief Delete Tcl commands and interpreter |
---|
1028 | */ |
---|
1029 | void GeoVis::exitTcl(Tcl_Interp *interp) |
---|
1030 | { |
---|
1031 | Tcl_DeleteCommand(interp, "camera"); |
---|
1032 | Tcl_DeleteCommand(interp, "clientinfo"); |
---|
1033 | Tcl_DeleteCommand(interp, "imgflush"); |
---|
1034 | Tcl_DeleteCommand(interp, "key"); |
---|
1035 | Tcl_DeleteCommand(interp, "map"); |
---|
1036 | Tcl_DeleteCommand(interp, "mouse"); |
---|
1037 | Tcl_DeleteCommand(interp, "renderer"); |
---|
1038 | Tcl_DeleteCommand(interp, "screen"); |
---|
1039 | |
---|
1040 | Tcl_DeleteInterp(interp); |
---|
1041 | } |
---|