[2798] | 1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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[3502] | 2 | /* |
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| 3 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
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| 4 | * |
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| 5 | */ |
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[1429] | 6 | #include <assert.h> |
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[3559] | 7 | #define _OPEN_SYS |
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| 8 | #include <fcntl.h> |
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| 9 | #define _XOPEN_SOURCE_EXTENDED 1 |
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| 10 | #include <sys/uio.h> |
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| 11 | #include <sys/stat.h> |
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[1429] | 12 | #include <stdlib.h> |
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| 13 | #include <stddef.h> |
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| 14 | #include <limits.h> |
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[1899] | 15 | #include <stdint.h> |
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[3559] | 16 | #include <unistd.h> |
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[1515] | 17 | #include <poll.h> |
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[3597] | 18 | |
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[4063] | 19 | #include <sstream> |
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| 20 | |
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[1429] | 21 | #include <tcl.h> |
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[2831] | 22 | |
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[4063] | 23 | #include <RpBuffer.h> |
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[2831] | 24 | |
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[3492] | 25 | #include <vrmath/Vector3f.h> |
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| 26 | |
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[2831] | 27 | #include "nvconf.h" |
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| 28 | |
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[3605] | 29 | #include "nanovisServer.h" |
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[1429] | 30 | #include "nanovis.h" |
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[3567] | 31 | #include "CmdProc.h" |
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[3597] | 32 | #include "Command.h" |
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[3605] | 33 | #include "PPMWriter.h" |
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[3935] | 34 | #ifdef USE_VTK |
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| 35 | #include "VtkDataSetReader.h" |
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[4063] | 36 | #else |
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| 37 | #include "VtkReader.h" |
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[3935] | 38 | #endif |
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[2831] | 39 | #include "FlowCmd.h" |
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[3567] | 40 | #include "FlowTypes.h" |
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[3597] | 41 | #include "Flow.h" |
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[3567] | 42 | #include "FlowBox.h" |
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| 43 | #include "FlowParticles.h" |
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[2831] | 44 | #include "Switch.h" |
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| 45 | #include "TransferFunction.h" |
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[3611] | 46 | #include "LIC.h" |
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[1429] | 47 | #include "Unirect.h" |
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[2831] | 48 | #include "VelocityArrowsSlice.h" |
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[2877] | 49 | #include "Volume.h" |
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[3597] | 50 | #include "Trace.h" |
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[1429] | 51 | |
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[3605] | 52 | using namespace nv; |
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[3492] | 53 | using namespace vrmath; |
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| 54 | |
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[4056] | 55 | static SwitchParseProc AxisSwitchProc; |
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| 56 | static SwitchCustom axisSwitch = { |
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[1429] | 57 | AxisSwitchProc, NULL, 0, |
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| 58 | }; |
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| 59 | |
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[4056] | 60 | static SwitchParseProc ColorSwitchProc; |
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| 61 | static SwitchCustom colorSwitch = { |
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[1429] | 62 | ColorSwitchProc, NULL, 0, |
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| 63 | }; |
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| 64 | |
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[4056] | 65 | static SwitchParseProc PointSwitchProc; |
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| 66 | static SwitchCustom pointSwitch = { |
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[1429] | 67 | PointSwitchProc, NULL, 0, |
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| 68 | }; |
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| 69 | |
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[4056] | 70 | static SwitchParseProc PositionSwitchProc; |
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| 71 | static SwitchCustom positionSwitch = { |
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[1429] | 72 | PositionSwitchProc, NULL, 0, |
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| 73 | }; |
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| 74 | |
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[4056] | 75 | static SwitchParseProc TransferFunctionSwitchProc; |
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| 76 | static SwitchCustom transferFunctionSwitch = { |
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[1429] | 77 | TransferFunctionSwitchProc, NULL, 0, |
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| 78 | }; |
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| 79 | |
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[4056] | 80 | SwitchSpec Flow::_switches[] = { |
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| 81 | {SWITCH_FLOAT, "-ambient", "value", |
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[3362] | 82 | offsetof(FlowValues, ambient), 0}, |
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[4056] | 83 | {SWITCH_BOOLEAN, "-arrows", "boolean", |
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[2875] | 84 | offsetof(FlowValues, showArrows), 0}, |
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[4056] | 85 | {SWITCH_CUSTOM, "-axis", "axis", |
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[2875] | 86 | offsetof(FlowValues, slicePos.axis), 0, 0, &axisSwitch}, |
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[4056] | 87 | {SWITCH_FLOAT, "-diffuse", "value", |
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[2875] | 88 | offsetof(FlowValues, diffuse), 0}, |
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[4056] | 89 | {SWITCH_BOOLEAN, "-hide", "boolean", |
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[2875] | 90 | offsetof(FlowValues, isHidden), 0}, |
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[4056] | 91 | {SWITCH_BOOLEAN, "-light2side", "boolean", |
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[3397] | 92 | offsetof(FlowValues, twoSidedLighting), 0}, |
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[4056] | 93 | {SWITCH_FLOAT, "-opacity", "value", |
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[2875] | 94 | offsetof(FlowValues, opacity), 0}, |
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[4056] | 95 | {SWITCH_BOOLEAN, "-outline", "boolean", |
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[2875] | 96 | offsetof(FlowValues, showOutline), 0}, |
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[4056] | 97 | {SWITCH_CUSTOM, "-position", "number", |
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[2875] | 98 | offsetof(FlowValues, slicePos), 0, 0, &positionSwitch}, |
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[4056] | 99 | {SWITCH_BOOLEAN, "-slice", "boolean", |
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[2875] | 100 | offsetof(FlowValues, sliceVisible), 0}, |
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[4056] | 101 | {SWITCH_FLOAT, "-specularExp", "value", |
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[3362] | 102 | offsetof(FlowValues, specularExp), 0}, |
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[4056] | 103 | {SWITCH_FLOAT, "-specularLevel", "value", |
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[2875] | 104 | offsetof(FlowValues, specular), 0}, |
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[4056] | 105 | {SWITCH_CUSTOM, "-transferfunction", "name", |
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[3567] | 106 | offsetof(FlowValues, transferFunction), 0, 0, &transferFunctionSwitch}, |
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[4056] | 107 | {SWITCH_BOOLEAN, "-volume", "boolean", |
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[2875] | 108 | offsetof(FlowValues, showVolume), 0}, |
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[4056] | 109 | {SWITCH_END} |
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[1429] | 110 | }; |
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| 111 | |
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[4056] | 112 | SwitchSpec FlowParticles::_switches[] = { |
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| 113 | {SWITCH_CUSTOM, "-axis", "axis", |
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[2875] | 114 | offsetof(FlowParticlesValues, position.axis), 0, 0, &axisSwitch}, |
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[4056] | 115 | {SWITCH_CUSTOM, "-color", "{r g b a}", |
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[2875] | 116 | offsetof(FlowParticlesValues, color), 0, 0, &colorSwitch}, |
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[4056] | 117 | {SWITCH_BOOLEAN, "-hide", "boolean", |
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[2875] | 118 | offsetof(FlowParticlesValues, isHidden), 0}, |
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[4056] | 119 | {SWITCH_CUSTOM, "-position", "number", |
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[2875] | 120 | offsetof(FlowParticlesValues, position), 0, 0, &positionSwitch}, |
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[4056] | 121 | {SWITCH_FLOAT, "-size", "float", |
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[2875] | 122 | offsetof(FlowParticlesValues, particleSize), 0}, |
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[4056] | 123 | {SWITCH_END} |
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[1429] | 124 | }; |
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| 125 | |
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[4056] | 126 | SwitchSpec FlowBox::_switches[] = { |
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| 127 | {SWITCH_CUSTOM, "-color", "{r g b a}", |
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[2875] | 128 | offsetof(FlowBoxValues, color), 0, 0, &colorSwitch}, |
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[4056] | 129 | {SWITCH_CUSTOM, "-corner1", "{x y z}", |
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[2875] | 130 | offsetof(FlowBoxValues, corner1), 0, 0, &pointSwitch}, |
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[4056] | 131 | {SWITCH_CUSTOM, "-corner2", "{x y z}", |
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[2875] | 132 | offsetof(FlowBoxValues, corner2), 0, 0, &pointSwitch}, |
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[4056] | 133 | {SWITCH_BOOLEAN, "-hide", "boolean", |
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[2875] | 134 | offsetof(FlowBoxValues, isHidden), 0}, |
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[4056] | 135 | {SWITCH_FLOAT, "-linewidth", "number", |
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[2875] | 136 | offsetof(FlowBoxValues, lineWidth), 0}, |
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[4056] | 137 | {SWITCH_END} |
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[1429] | 138 | }; |
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| 139 | |
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[2875] | 140 | /** |
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[1434] | 141 | * $flow data follows nbytes nComponents |
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[1431] | 142 | */ |
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[1429] | 143 | static int |
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| 144 | FlowDataFollowsOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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[2875] | 145 | Tcl_Obj *const *objv) |
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[1429] | 146 | { |
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[3564] | 147 | TRACE("Enter"); |
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| 148 | |
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[1429] | 149 | int nBytes; |
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| 150 | if (Tcl_GetIntFromObj(interp, objv[3], &nBytes) != TCL_OK) { |
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[3452] | 151 | ERROR("Bad nBytes \"%s\"", Tcl_GetString(objv[3])); |
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[1429] | 152 | return TCL_ERROR; |
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| 153 | } |
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| 154 | if (nBytes <= 0) { |
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[2875] | 155 | Tcl_AppendResult(interp, "bad # bytes request \"", |
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| 156 | Tcl_GetString(objv[3]), "\" for \"data follows\"", (char *)NULL); |
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[3452] | 157 | ERROR("Bad nbytes %d", nBytes); |
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[2875] | 158 | return TCL_ERROR; |
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[1429] | 159 | } |
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[1434] | 160 | int nComponents; |
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| 161 | if (Tcl_GetIntFromObj(interp, objv[4], &nComponents) != TCL_OK) { |
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[3452] | 162 | ERROR("Bad # of components \"%s\"", Tcl_GetString(objv[4])); |
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[1429] | 163 | return TCL_ERROR; |
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| 164 | } |
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[1434] | 165 | if (nComponents <= 0) { |
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[2875] | 166 | Tcl_AppendResult(interp, "bad # of components request \"", |
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| 167 | Tcl_GetString(objv[4]), "\" for \"data follows\"", (char *)NULL); |
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[3452] | 168 | ERROR("Bad # of components %d", nComponents); |
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[2875] | 169 | return TCL_ERROR; |
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[1431] | 170 | } |
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[3605] | 171 | Rappture::Buffer buf(nBytes); |
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[3564] | 172 | TRACE("Flow data loading bytes: %d components: %d", nBytes, nComponents); |
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[1429] | 173 | if (GetDataStream(interp, buf, nBytes) != TCL_OK) { |
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| 174 | return TCL_ERROR; |
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| 175 | } |
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[3605] | 176 | char *bytes = (char *)buf.bytes(); |
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| 177 | size_t length = buf.size(); |
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| 178 | |
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[4056] | 179 | Unirect3d *unirect = NULL; |
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[3935] | 180 | Volume *volume = NULL; |
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[1478] | 181 | |
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[3597] | 182 | Flow *flow = (Flow *)clientData; |
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[1446] | 183 | if ((length > 4) && (strncmp(bytes, "<DX>", 4) == 0)) { |
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[4056] | 184 | unirect = new Unirect3d(nComponents); |
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[4063] | 185 | if (!unirect->importDx(nComponents, length - 4, bytes + 4)) { |
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| 186 | Tcl_AppendResult(interp, "Failed to load DX file", (char *)NULL); |
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[3935] | 187 | delete unirect; |
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[2875] | 188 | return TCL_ERROR; |
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| 189 | } |
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[1462] | 190 | } else if ((length > 10) && (strncmp(bytes, "unirect3d ", 10) == 0)) { |
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[4056] | 191 | unirect = new Unirect3d(nComponents); |
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[4063] | 192 | if (unirect->parseBuffer(interp, bytes, length) != TCL_OK) { |
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[3935] | 193 | delete unirect; |
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[2875] | 194 | return TCL_ERROR; |
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| 195 | } |
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[1462] | 196 | } else if ((length > 10) && (strncmp(bytes, "unirect2d ", 10) == 0)) { |
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[4056] | 197 | unirect = new Unirect3d(nComponents); |
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| 198 | Unirect2d *u2dPtr; |
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| 199 | u2dPtr = new Unirect2d(nComponents); |
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[4063] | 200 | if (u2dPtr->parseBuffer(interp, bytes, length) != TCL_OK) { |
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[3936] | 201 | delete unirect; |
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[2875] | 202 | delete u2dPtr; |
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| 203 | return TCL_ERROR; |
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| 204 | } |
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[3935] | 205 | unirect->convert(u2dPtr); |
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[2875] | 206 | delete u2dPtr; |
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[3630] | 207 | } else if ((length > 14) && (strncmp(bytes, "# vtk DataFile", 14) == 0)) { |
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| 208 | TRACE("VTK loading..."); |
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| 209 | if (length <= 0) { |
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| 210 | ERROR("data buffer is empty"); |
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| 211 | abort(); |
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| 212 | } |
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[3935] | 213 | #ifdef USE_VTK |
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[4063] | 214 | volume = load_vtk_volume_stream(flow->name(), bytes, length); |
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[3935] | 215 | #else |
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| 216 | std::stringstream fdata; |
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[4063] | 217 | fdata.write(bytes, length); |
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| 218 | volume = load_vtk_volume_stream(flow->name(), fdata); |
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[3935] | 219 | #endif |
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[3630] | 220 | if (volume == NULL) { |
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[4063] | 221 | Tcl_AppendResult(interp, "Failed to load VTK file", (char*)NULL); |
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[3630] | 222 | return TCL_ERROR; |
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| 223 | } |
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[1429] | 224 | } else { |
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[3564] | 225 | TRACE("header is %.14s", buf.bytes()); |
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[4056] | 226 | unirect = new Unirect3d(nComponents); |
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[4063] | 227 | if (!unirect->importDx(nComponents, length, bytes)) { |
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| 228 | Tcl_AppendResult(interp, "Failed to load DX file", (char *)NULL); |
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[3935] | 229 | delete unirect; |
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[2875] | 230 | return TCL_ERROR; |
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| 231 | } |
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[1429] | 232 | } |
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[3935] | 233 | if (unirect != NULL && unirect->nValues() == 0) { |
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| 234 | delete unirect; |
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[2875] | 235 | Tcl_AppendResult(interp, "no data found in stream", (char *)NULL); |
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| 236 | return TCL_ERROR; |
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[1510] | 237 | } |
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[3935] | 238 | if (unirect != NULL) { |
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[3943] | 239 | TRACE("nx = %d ny = %d nz = %d", |
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| 240 | unirect->xNum(), unirect->yNum(), unirect->zNum()); |
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| 241 | TRACE("x0 = %lg y0 = %lg z0 = %lg", |
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| 242 | unirect->xMin(), unirect->yMin(), unirect->zMin()); |
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| 243 | TRACE("lx = %lg ly = %lg lz = %lg", |
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| 244 | unirect->xMax() - unirect->xMin(), |
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| 245 | unirect->yMax() - unirect->yMin(), |
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| 246 | unirect->zMax() - unirect->zMin()); |
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| 247 | TRACE("dx = %lg dy = %lg dz = %lg", |
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| 248 | unirect->xNum() > 1 ? (unirect->xMax() - unirect->xMin())/(unirect->xNum()-1) : 0, |
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| 249 | unirect->yNum() > 1 ? (unirect->yMax() - unirect->yMin())/(unirect->yNum()-1) : 0, |
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| 250 | unirect->zNum() > 1 ? (unirect->zMax() - unirect->zMin())/(unirect->zNum()-1) : 0); |
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| 251 | TRACE("magMin = %lg magMax = %lg", |
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| 252 | unirect->magMin(), unirect->magMax()); |
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| 253 | |
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[3935] | 254 | flow->data(unirect); |
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| 255 | } else { |
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| 256 | flow->data(volume); |
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| 257 | } |
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| 258 | double range[2]; |
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| 259 | flow->getVectorRange(range); |
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[1431] | 260 | { |
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| 261 | char info[1024]; |
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[3605] | 262 | int length = |
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| 263 | sprintf(info, "nv>data tag %s min %g max %g\n", |
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[3935] | 264 | flow->name(), range[0], range[1]); |
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[3605] | 265 | #ifdef USE_THREADS |
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| 266 | queueResponse(info, (size_t)length, Response::VOLATILE); |
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| 267 | #else |
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| 268 | if (SocketWrite(info, (size_t)length) < 0) { |
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| 269 | return TCL_ERROR; |
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| 270 | } |
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| 271 | #endif |
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[1431] | 272 | } |
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[3630] | 273 | Flow::updatePending = true; |
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| 274 | NanoVis::eventuallyRedraw(); |
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[1429] | 275 | return TCL_OK; |
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| 276 | } |
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| 277 | |
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[4056] | 278 | static CmdSpec flowDataOps[] = { |
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[1434] | 279 | {"follows", 2, FlowDataFollowsOp, 5, 5, "size nComponents",}, |
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[1429] | 280 | }; |
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| 281 | static int nFlowDataOps = NumCmdSpecs(flowDataOps); |
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| 282 | |
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| 283 | static int |
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| 284 | FlowDataOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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[2875] | 285 | Tcl_Obj *const *objv) |
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[1429] | 286 | { |
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| 287 | Tcl_ObjCmdProc *proc; |
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| 288 | |
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[4056] | 289 | proc = GetOpFromObj(interp, nFlowDataOps, flowDataOps, |
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| 290 | CMDSPEC_ARG2, objc, objv, 0); |
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[1429] | 291 | if (proc == NULL) { |
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| 292 | return TCL_ERROR; |
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| 293 | } |
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| 294 | return (*proc) (clientData, interp, objc, objv); |
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| 295 | } |
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| 296 | |
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[3567] | 297 | /** |
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[2875] | 298 | * \brief Convert a Tcl_Obj representing the label of a child node into its |
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| 299 | * integer node id. |
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[1429] | 300 | * |
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[2875] | 301 | * \param clientData Flag indicating if the node is considered before or |
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| 302 | * after the insertion position. |
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| 303 | * \param interp Interpreter to send results back to |
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| 304 | * \param switchName Not used |
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| 305 | * \param objPtr String representation |
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| 306 | * \param record Structure record |
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| 307 | * \param offset Not used |
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| 308 | * \param flags Not used |
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[1429] | 309 | * |
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[2875] | 310 | * \return The return value is a standard Tcl result. |
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[1429] | 311 | */ |
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| 312 | static int |
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[2875] | 313 | AxisSwitchProc(ClientData clientData, Tcl_Interp *interp, |
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| 314 | const char *switchName, Tcl_Obj *objPtr, |
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| 315 | char *record, int offset, int flags) |
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[1429] | 316 | { |
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| 317 | const char *string = Tcl_GetString(objPtr); |
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| 318 | if (string[1] == '\0') { |
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[3630] | 319 | FlowSliceAxis *axisPtr = (FlowSliceAxis *)(record + offset); |
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[1429] | 320 | char c; |
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| 321 | c = tolower((unsigned char)string[0]); |
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| 322 | if (c == 'x') { |
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[3630] | 323 | *axisPtr = AXIS_X; |
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[1429] | 324 | return TCL_OK; |
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| 325 | } else if (c == 'y') { |
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[3630] | 326 | *axisPtr = AXIS_Y; |
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[1429] | 327 | return TCL_OK; |
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| 328 | } else if (c == 'z') { |
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[3630] | 329 | *axisPtr = AXIS_Z; |
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[1429] | 330 | return TCL_OK; |
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| 331 | } |
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| 332 | /*FALLTHRU*/ |
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| 333 | } |
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| 334 | Tcl_AppendResult(interp, "bad axis \"", string, |
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| 335 | "\": should be x, y, or z", (char*)NULL); |
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| 336 | return TCL_ERROR; |
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| 337 | } |
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| 338 | |
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[2875] | 339 | /** |
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| 340 | * \brief Convert a Tcl_Obj representing the label of a list of four color |
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| 341 | * components in to a RGBA color value. |
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[1429] | 342 | * |
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[2875] | 343 | * \param clientData Flag indicating if the node is considered before or |
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| 344 | * after the insertion position. |
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| 345 | * \param interp Interpreter to send results back to |
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| 346 | * \param switchName Not used |
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| 347 | * \param objPtr String representation |
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| 348 | * \param record Structure record |
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| 349 | * \param offset Not used |
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| 350 | * \param flags Not used |
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| 351 | * |
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| 352 | * \return The return value is a standard Tcl result. |
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[1429] | 353 | */ |
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| 354 | static int |
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[2875] | 355 | ColorSwitchProc(ClientData clientData, Tcl_Interp *interp, |
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| 356 | const char *switchName, Tcl_Obj *objPtr, |
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| 357 | char *record, int offset, int flags) |
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[1429] | 358 | { |
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| 359 | Tcl_Obj **objv; |
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| 360 | int objc; |
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[3567] | 361 | FlowColor *color = (FlowColor *)(record + offset); |
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[1429] | 362 | |
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| 363 | if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { |
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[2875] | 364 | return TCL_ERROR; |
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[1429] | 365 | } |
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| 366 | if ((objc < 3) || (objc > 4)) { |
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[2875] | 367 | Tcl_AppendResult(interp, "wrong # of elements in color definition", |
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| 368 | (char *)NULL); |
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| 369 | return TCL_ERROR; |
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[1429] | 370 | } |
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| 371 | float values[4]; |
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| 372 | int i; |
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| 373 | values[3] = 1.0f; |
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| 374 | for (i = 0; i < objc; i++) { |
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[2875] | 375 | float value; |
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[1429] | 376 | |
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[2875] | 377 | if (GetFloatFromObj(interp, objv[i], &value) != TCL_OK) { |
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| 378 | return TCL_ERROR; |
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| 379 | } |
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| 380 | if ((value < 0.0) || (value > 1.0)) { |
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| 381 | Tcl_AppendResult(interp, "bad component value in \"", |
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| 382 | Tcl_GetString(objPtr), "\": color values must be [0..1]", |
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| 383 | (char *)NULL); |
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| 384 | return TCL_ERROR; |
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| 385 | } |
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| 386 | values[i] = value; |
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| 387 | } |
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[3567] | 388 | color->r = values[0]; |
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| 389 | color->g = values[1]; |
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| 390 | color->b = values[2]; |
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| 391 | color->a = values[3]; |
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[1429] | 392 | return TCL_OK; |
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| 393 | } |
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| 394 | |
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[2875] | 395 | /** |
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| 396 | * \brief Convert a Tcl_Obj representing the a 3-D coordinate into a point. |
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[1429] | 397 | * |
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[2875] | 398 | * \param clientData Flag indicating if the node is considered before or |
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| 399 | * after the insertion position. |
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| 400 | * \param interp Interpreter to send results back to |
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| 401 | * \param switchName Not used |
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| 402 | * \param objPtr String representation |
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| 403 | * \param record Structure record |
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| 404 | * \param offset Not used |
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| 405 | * \param flags Not used |
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[1429] | 406 | * |
---|
[2875] | 407 | * \return The return value is a standard Tcl result. |
---|
[1429] | 408 | */ |
---|
| 409 | static int |
---|
[2875] | 410 | PointSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 411 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 412 | char *record, int offset, int flags) |
---|
[1429] | 413 | { |
---|
[3567] | 414 | FlowPoint *point = (FlowPoint *)(record + offset); |
---|
[1429] | 415 | int objc; |
---|
| 416 | Tcl_Obj **objv; |
---|
| 417 | |
---|
| 418 | if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { |
---|
[2875] | 419 | return TCL_ERROR; |
---|
[1429] | 420 | } |
---|
| 421 | if (objc != 3) { |
---|
[2875] | 422 | Tcl_AppendResult(interp, "wrong # of elements for box coordinates: " |
---|
| 423 | " should be \"x y z\"", (char *)NULL); |
---|
| 424 | return TCL_ERROR; |
---|
[1429] | 425 | } |
---|
| 426 | float values[3]; |
---|
| 427 | int i; |
---|
| 428 | for (i = 0; i < objc; i++) { |
---|
[2875] | 429 | float value; |
---|
[1429] | 430 | |
---|
[2875] | 431 | if (GetFloatFromObj(interp, objv[i], &value) != TCL_OK) { |
---|
| 432 | return TCL_ERROR; |
---|
| 433 | } |
---|
| 434 | values[i] = value; |
---|
| 435 | } |
---|
[3567] | 436 | point->x = values[0]; |
---|
| 437 | point->y = values[1]; |
---|
| 438 | point->z = values[2]; |
---|
[1429] | 439 | return TCL_OK; |
---|
| 440 | } |
---|
| 441 | |
---|
[2875] | 442 | /** |
---|
| 443 | * \brief Convert a Tcl_Obj representing the a 3-D coordinate into a point. |
---|
[1429] | 444 | * |
---|
[2875] | 445 | * \param clientData Flag indicating if the node is considered before or |
---|
| 446 | * after the insertion position. |
---|
| 447 | * \param interp Interpreter to send results back to |
---|
| 448 | * \param switchName Not used |
---|
| 449 | * \param objPtr String representation |
---|
| 450 | * \param record Structure record |
---|
| 451 | * \param offset Not used |
---|
| 452 | * \param flags Not used |
---|
[1429] | 453 | * |
---|
[2875] | 454 | * \return The return value is a standard Tcl result. |
---|
[1429] | 455 | */ |
---|
| 456 | static int |
---|
[2875] | 457 | PositionSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 458 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 459 | char *record, int offset, int flags) |
---|
[1429] | 460 | { |
---|
| 461 | FlowPosition *posPtr = (FlowPosition *)(record + offset); |
---|
| 462 | const char *string; |
---|
| 463 | char *p; |
---|
| 464 | |
---|
| 465 | string = Tcl_GetString(objPtr); |
---|
[1571] | 466 | p = strrchr((char *)string, '%'); |
---|
[1429] | 467 | if (p == NULL) { |
---|
[2875] | 468 | float value; |
---|
[1429] | 469 | |
---|
[2875] | 470 | if (GetFloatFromObj(interp, objPtr, &value) != TCL_OK) { |
---|
| 471 | return TCL_ERROR; |
---|
| 472 | } |
---|
| 473 | posPtr->value = value; |
---|
| 474 | posPtr->flags = ABSPOS; |
---|
[1429] | 475 | } else { |
---|
[2875] | 476 | double value; |
---|
[1429] | 477 | |
---|
[2875] | 478 | *p = '\0'; |
---|
| 479 | if (Tcl_GetDouble(interp, string, &value) != TCL_OK) { |
---|
| 480 | return TCL_ERROR; |
---|
| 481 | } |
---|
| 482 | posPtr->value = (float)value * 0.01; |
---|
| 483 | posPtr->flags = RELPOS; |
---|
[1429] | 484 | } |
---|
| 485 | return TCL_OK; |
---|
| 486 | } |
---|
| 487 | |
---|
[2875] | 488 | /** |
---|
| 489 | * \brief Convert a Tcl_Obj representing the transfer function into a |
---|
| 490 | * TransferFunction pointer. |
---|
[1429] | 491 | * |
---|
[2875] | 492 | * The transfer function must have been previously defined. |
---|
[1429] | 493 | * |
---|
[2875] | 494 | * \param clientData Flag indicating if the node is considered before or |
---|
| 495 | * after the insertion position. |
---|
| 496 | * \param interp Interpreter to send results back to |
---|
| 497 | * \param switchName Not used |
---|
| 498 | * \param objPtr String representation |
---|
| 499 | * \param record Structure record |
---|
| 500 | * \param offset Not used |
---|
| 501 | * \param flags Not used |
---|
[1429] | 502 | * |
---|
[2875] | 503 | * \return The return value is a standard Tcl result. |
---|
[1429] | 504 | */ |
---|
| 505 | static int |
---|
[2875] | 506 | TransferFunctionSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 507 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 508 | char *record, int offset, int flags) |
---|
[1429] | 509 | { |
---|
| 510 | TransferFunction **funcPtrPtr = (TransferFunction **)(record + offset); |
---|
[3567] | 511 | TransferFunction *tf = NanoVis::getTransferFunction(Tcl_GetString(objPtr)); |
---|
| 512 | if (tf == NULL) { |
---|
[1429] | 513 | Tcl_AppendResult(interp, "transfer function \"", Tcl_GetString(objPtr), |
---|
| 514 | "\" is not defined", (char*)NULL); |
---|
| 515 | return TCL_ERROR; |
---|
| 516 | } |
---|
[3567] | 517 | *funcPtrPtr = tf; |
---|
[1429] | 518 | return TCL_OK; |
---|
| 519 | } |
---|
| 520 | |
---|
| 521 | static int |
---|
| 522 | FlowConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 523 | Tcl_Obj *const *objv) |
---|
[1429] | 524 | { |
---|
[3597] | 525 | Flow *flow = (Flow *)clientData; |
---|
[1429] | 526 | |
---|
[3597] | 527 | if (flow->parseSwitches(interp, objc - 2, objv + 2) != TCL_OK) { |
---|
[2875] | 528 | return TCL_ERROR; |
---|
[1429] | 529 | } |
---|
[3630] | 530 | if (flow->configure()) { |
---|
| 531 | Flow::updatePending = true; |
---|
| 532 | } |
---|
| 533 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 534 | return TCL_OK; |
---|
| 535 | } |
---|
| 536 | |
---|
| 537 | static int |
---|
| 538 | FlowParticlesAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 539 | Tcl_Obj *const *objv) |
---|
[1429] | 540 | { |
---|
[3597] | 541 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 542 | const char *particlesName = Tcl_GetString(objv[3]); |
---|
| 543 | FlowParticles *particles = flow->createParticles(particlesName); |
---|
| 544 | if (particles == NULL) { |
---|
| 545 | Tcl_AppendResult(interp, "Flow particle injection plane \"", |
---|
| 546 | particlesName, |
---|
| 547 | "\" already exists or could not be created", |
---|
| 548 | (char*)NULL); |
---|
[2875] | 549 | return TCL_ERROR; |
---|
[1429] | 550 | } |
---|
[3567] | 551 | if (particles->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 552 | flow->deleteParticles(particlesName); |
---|
[2875] | 553 | return TCL_ERROR; |
---|
[1429] | 554 | } |
---|
[3567] | 555 | particles->configure(); |
---|
[3630] | 556 | Flow::updatePending = true; |
---|
[2877] | 557 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 558 | Tcl_SetObjResult(interp, objv[3]); |
---|
| 559 | return TCL_OK; |
---|
| 560 | } |
---|
| 561 | |
---|
| 562 | static int |
---|
| 563 | FlowParticlesConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 564 | Tcl_Obj *const *objv) |
---|
[1429] | 565 | { |
---|
[3597] | 566 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 567 | const char *particlesName = Tcl_GetString(objv[3]); |
---|
| 568 | FlowParticles *particles = flow->getParticles(particlesName); |
---|
| 569 | if (particles == NULL) { |
---|
| 570 | Tcl_AppendResult(interp, "Flow particle injection plane \"", |
---|
| 571 | particlesName, "\" not found", |
---|
| 572 | (char*)NULL); |
---|
[2875] | 573 | return TCL_ERROR; |
---|
[1429] | 574 | } |
---|
[3567] | 575 | if (particles->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
[2875] | 576 | return TCL_ERROR; |
---|
[1429] | 577 | } |
---|
[3630] | 578 | if (particles->configure()) { |
---|
| 579 | Flow::updatePending = true; |
---|
| 580 | } |
---|
| 581 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 582 | return TCL_OK; |
---|
| 583 | } |
---|
| 584 | |
---|
| 585 | static int |
---|
| 586 | FlowParticlesDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 587 | Tcl_Obj *const *objv) |
---|
[1429] | 588 | { |
---|
[3597] | 589 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 590 | for (int i = 3; i < objc; i++) { |
---|
| 591 | flow->deleteParticles(Tcl_GetString(objv[i])); |
---|
[1429] | 592 | } |
---|
[2877] | 593 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 594 | return TCL_OK; |
---|
| 595 | } |
---|
| 596 | |
---|
| 597 | static int |
---|
| 598 | FlowParticlesNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 599 | Tcl_Obj *const *objv) |
---|
[1429] | 600 | { |
---|
[3597] | 601 | Flow *flow = (Flow *)clientData; |
---|
[1429] | 602 | Tcl_Obj *listObjPtr; |
---|
| 603 | listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
[3567] | 604 | std::vector<std::string> names; |
---|
| 605 | flow->getParticlesNames(names); |
---|
| 606 | for (std::vector<std::string>::iterator itr = names.begin(); |
---|
| 607 | itr != names.end(); ++itr) { |
---|
| 608 | Tcl_Obj *objPtr = Tcl_NewStringObj(itr->c_str(), -1); |
---|
[2875] | 609 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
[1429] | 610 | } |
---|
| 611 | Tcl_SetObjResult(interp, listObjPtr); |
---|
| 612 | return TCL_OK; |
---|
| 613 | } |
---|
| 614 | |
---|
[4056] | 615 | static CmdSpec flowParticlesOps[] = { |
---|
[1429] | 616 | {"add", 1, FlowParticlesAddOp, 4, 0, "name ?switches?",}, |
---|
| 617 | {"configure", 1, FlowParticlesConfigureOp, 4, 0, "name ?switches?",}, |
---|
[3567] | 618 | {"delete", 1, FlowParticlesDeleteOp, 4, 0, "name ?name...?"}, |
---|
| 619 | {"names", 1, FlowParticlesNamesOp, 3, 3, ""}, |
---|
[1429] | 620 | }; |
---|
| 621 | |
---|
| 622 | static int nFlowParticlesOps = NumCmdSpecs(flowParticlesOps); |
---|
| 623 | |
---|
[2875] | 624 | /** |
---|
| 625 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
| 626 | * object. |
---|
| 627 | * |
---|
| 628 | * Side effects: See the user documentation. |
---|
| 629 | * |
---|
| 630 | * $flow particles oper $name |
---|
| 631 | * |
---|
| 632 | * \return A standard Tcl result. |
---|
| 633 | */ |
---|
[1429] | 634 | static int |
---|
| 635 | FlowParticlesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 636 | Tcl_Obj *const *objv) |
---|
[1429] | 637 | { |
---|
| 638 | Tcl_ObjCmdProc *proc; |
---|
[4056] | 639 | proc = GetOpFromObj(interp, nFlowParticlesOps, flowParticlesOps, |
---|
| 640 | CMDSPEC_ARG2, objc, objv, 0); |
---|
[1429] | 641 | if (proc == NULL) { |
---|
[2875] | 642 | return TCL_ERROR; |
---|
[1429] | 643 | } |
---|
[3597] | 644 | Flow *flow = (Flow *)clientData; |
---|
| 645 | Tcl_Preserve(flow); |
---|
[1429] | 646 | int result; |
---|
| 647 | result = (*proc) (clientData, interp, objc, objv); |
---|
[3597] | 648 | Tcl_Release(flow); |
---|
[1429] | 649 | return result; |
---|
| 650 | } |
---|
| 651 | |
---|
| 652 | static int |
---|
| 653 | FlowBoxAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 654 | Tcl_Obj *const *objv) |
---|
[1429] | 655 | { |
---|
[3597] | 656 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 657 | const char *boxName = Tcl_GetString(objv[3]); |
---|
| 658 | FlowBox *box = flow->createBox(boxName); |
---|
| 659 | if (box == NULL) { |
---|
| 660 | Tcl_AppendResult(interp, "Flow box \"", boxName, |
---|
| 661 | "\" already exists or could not be created", |
---|
| 662 | (char*)NULL); |
---|
[2875] | 663 | return TCL_ERROR; |
---|
[1429] | 664 | } |
---|
[3567] | 665 | if (box->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 666 | flow->deleteBox(boxName); |
---|
[2875] | 667 | return TCL_ERROR; |
---|
[1429] | 668 | } |
---|
[3567] | 669 | NanoVis::eventuallyRedraw(); |
---|
| 670 | Tcl_SetObjResult(interp, objv[3]); |
---|
| 671 | return TCL_OK; |
---|
| 672 | } |
---|
| 673 | |
---|
| 674 | static int |
---|
| 675 | FlowBoxConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 676 | Tcl_Obj *const *objv) |
---|
| 677 | { |
---|
[3597] | 678 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 679 | const char *boxName = Tcl_GetString(objv[3]); |
---|
| 680 | FlowBox *box = flow->getBox(boxName); |
---|
| 681 | if (box == NULL) { |
---|
| 682 | Tcl_AppendResult(interp, "Flow box \"", boxName, "\" not found", |
---|
| 683 | (char*)NULL); |
---|
[2875] | 684 | return TCL_ERROR; |
---|
[1429] | 685 | } |
---|
[3567] | 686 | if (box->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 687 | return TCL_ERROR; |
---|
| 688 | } |
---|
[2877] | 689 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 690 | return TCL_OK; |
---|
| 691 | } |
---|
| 692 | |
---|
| 693 | static int |
---|
| 694 | FlowBoxDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 695 | Tcl_Obj *const *objv) |
---|
[1429] | 696 | { |
---|
[3597] | 697 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 698 | for (int i = 3; i < objc; i++) { |
---|
| 699 | flow->deleteBox(Tcl_GetString(objv[i])); |
---|
[1429] | 700 | } |
---|
[2877] | 701 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 702 | return TCL_OK; |
---|
| 703 | } |
---|
| 704 | |
---|
| 705 | static int |
---|
| 706 | FlowBoxNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 707 | Tcl_Obj *const *objv) |
---|
[1429] | 708 | { |
---|
[3597] | 709 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 710 | Tcl_Obj *listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
| 711 | std::vector<std::string> names; |
---|
| 712 | flow->getBoxNames(names); |
---|
| 713 | for (std::vector<std::string>::iterator itr = names.begin(); |
---|
| 714 | itr != names.end(); ++itr) { |
---|
| 715 | Tcl_Obj *objPtr = Tcl_NewStringObj(itr->c_str(), -1); |
---|
[2875] | 716 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
[1429] | 717 | } |
---|
| 718 | Tcl_SetObjResult(interp, listObjPtr); |
---|
| 719 | return TCL_OK; |
---|
| 720 | } |
---|
| 721 | |
---|
[4056] | 722 | static CmdSpec flowBoxOps[] = { |
---|
[1429] | 723 | {"add", 1, FlowBoxAddOp, 4, 0, "name ?switches?",}, |
---|
| 724 | {"configure", 1, FlowBoxConfigureOp, 4, 0, "name ?switches?",}, |
---|
[3567] | 725 | {"delete", 1, FlowBoxDeleteOp, 4, 0, "name ?name...?"}, |
---|
| 726 | {"names", 1, FlowBoxNamesOp, 3, 3, ""}, |
---|
[1429] | 727 | }; |
---|
| 728 | |
---|
| 729 | static int nFlowBoxOps = NumCmdSpecs(flowBoxOps); |
---|
| 730 | |
---|
[2875] | 731 | /** |
---|
| 732 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
| 733 | * object. |
---|
| 734 | * |
---|
| 735 | * Side effects: See the user documentation. |
---|
| 736 | * |
---|
| 737 | * \return A standard Tcl result. |
---|
| 738 | */ |
---|
[1429] | 739 | static int |
---|
| 740 | FlowBoxOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 741 | Tcl_Obj *const *objv) |
---|
[1429] | 742 | { |
---|
| 743 | Tcl_ObjCmdProc *proc; |
---|
[4056] | 744 | proc = GetOpFromObj(interp, nFlowBoxOps, flowBoxOps, |
---|
| 745 | CMDSPEC_ARG2, objc, objv, 0); |
---|
[1429] | 746 | if (proc == NULL) { |
---|
[2875] | 747 | return TCL_ERROR; |
---|
[1429] | 748 | } |
---|
[3597] | 749 | Flow *flow = (Flow *)clientData; |
---|
| 750 | Tcl_Preserve(flow); |
---|
[1429] | 751 | int result; |
---|
| 752 | result = (*proc) (clientData, interp, objc, objv); |
---|
[3597] | 753 | Tcl_Release(flow); |
---|
[1429] | 754 | return result; |
---|
| 755 | } |
---|
| 756 | |
---|
| 757 | /* |
---|
[1474] | 758 | * CLIENT COMMAND: |
---|
| 759 | * $flow legend <width> <height> |
---|
| 760 | * |
---|
| 761 | * Clients use this to generate a legend image for the specified |
---|
| 762 | * transfer function. The legend image is a color gradient from 0 |
---|
| 763 | * to one, drawn in the given transfer function. The resulting image |
---|
| 764 | * is returned in the size <width> x <height>. |
---|
| 765 | */ |
---|
| 766 | static int |
---|
| 767 | FlowLegendOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 768 | Tcl_Obj *const *objv) |
---|
[1474] | 769 | { |
---|
[3597] | 770 | Flow *flow = (Flow *)clientData; |
---|
[1474] | 771 | |
---|
| 772 | const char *string = Tcl_GetString(objv[1]); |
---|
| 773 | TransferFunction *tf; |
---|
[3597] | 774 | tf = flow->getTransferFunction(); |
---|
[1474] | 775 | if (tf == NULL) { |
---|
| 776 | Tcl_AppendResult(interp, "unknown transfer function \"", string, "\"", |
---|
[2875] | 777 | (char*)NULL); |
---|
[1474] | 778 | return TCL_ERROR; |
---|
| 779 | } |
---|
| 780 | const char *label; |
---|
| 781 | label = Tcl_GetString(objv[0]); |
---|
| 782 | int w, h; |
---|
| 783 | if ((Tcl_GetIntFromObj(interp, objv[2], &w) != TCL_OK) || |
---|
| 784 | (Tcl_GetIntFromObj(interp, objv[3], &h) != TCL_OK)) { |
---|
| 785 | return TCL_ERROR; |
---|
| 786 | } |
---|
[3630] | 787 | if (Flow::updatePending) { |
---|
[3935] | 788 | NanoVis::setFlowRanges(); |
---|
[1474] | 789 | } |
---|
[3630] | 790 | NanoVis::renderLegend(tf, Flow::magMin, Flow::magMax, w, h, label); |
---|
[1474] | 791 | return TCL_OK; |
---|
| 792 | } |
---|
| 793 | |
---|
[4056] | 794 | static CmdSpec flowInstOps[] = { |
---|
[1429] | 795 | {"box", 1, FlowBoxOp, 2, 0, "oper ?args?"}, |
---|
| 796 | {"configure", 1, FlowConfigureOp, 2, 0, "?switches?"}, |
---|
[2875] | 797 | {"data", 1, FlowDataOp, 2, 0, "oper ?args?"}, |
---|
[1474] | 798 | {"legend", 1, FlowLegendOp, 4, 4, "w h"}, |
---|
[1429] | 799 | {"particles", 1, FlowParticlesOp, 2, 0, "oper ?args?"} |
---|
| 800 | }; |
---|
| 801 | static int nFlowInstOps = NumCmdSpecs(flowInstOps); |
---|
| 802 | |
---|
[2875] | 803 | /** |
---|
| 804 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
| 805 | * object. |
---|
| 806 | * |
---|
| 807 | * Side effects: See the user documentation. |
---|
| 808 | * |
---|
| 809 | * \return A standard Tcl result. |
---|
| 810 | */ |
---|
[3597] | 811 | int |
---|
[3611] | 812 | nv::FlowInstObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 813 | Tcl_Obj *const *objv) |
---|
[1429] | 814 | { |
---|
| 815 | Tcl_ObjCmdProc *proc; |
---|
[4056] | 816 | proc = GetOpFromObj(interp, nFlowInstOps, flowInstOps, |
---|
| 817 | CMDSPEC_ARG1, objc, objv, 0); |
---|
[1429] | 818 | if (proc == NULL) { |
---|
[2875] | 819 | return TCL_ERROR; |
---|
[1429] | 820 | } |
---|
| 821 | assert(CheckGL(AT)); |
---|
[3597] | 822 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 823 | Tcl_Preserve(flow); |
---|
| 824 | int result = (*proc) (clientData, interp, objc, objv); |
---|
| 825 | Tcl_Release(flow); |
---|
[1429] | 826 | return result; |
---|
| 827 | } |
---|
| 828 | |
---|
[2875] | 829 | /** |
---|
[3567] | 830 | * \brief Deletes the command associated with the flow |
---|
[1429] | 831 | * |
---|
[3567] | 832 | * This is called only when the command associated with the flow is destroyed. |
---|
[1429] | 833 | */ |
---|
[3597] | 834 | void |
---|
[3611] | 835 | nv::FlowInstDeleteProc(ClientData clientData) |
---|
[1429] | 836 | { |
---|
[3597] | 837 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 838 | NanoVis::deleteFlow(flow->name()); |
---|
[1429] | 839 | } |
---|
| 840 | |
---|
| 841 | static int |
---|
| 842 | FlowAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 843 | Tcl_Obj *const *objv) |
---|
[1429] | 844 | { |
---|
[3567] | 845 | const char *name = Tcl_GetString(objv[2]); |
---|
| 846 | Tcl_CmdInfo cmdInfo; |
---|
| 847 | if (Tcl_GetCommandInfo(interp, name, &cmdInfo)) { |
---|
| 848 | Tcl_AppendResult(interp, "an another command \"", name, |
---|
| 849 | "\" already exists.", (char *)NULL); |
---|
[3576] | 850 | return TCL_ERROR; |
---|
[1429] | 851 | } |
---|
[3597] | 852 | Flow *flow = NanoVis::createFlow(interp, name); |
---|
[3567] | 853 | if (flow == NULL) { |
---|
| 854 | Tcl_AppendResult(interp, "Flow \"", name, "\" already exists", |
---|
| 855 | (char*)NULL); |
---|
[2875] | 856 | return TCL_ERROR; |
---|
[1429] | 857 | } |
---|
[3567] | 858 | if (flow->parseSwitches(interp, objc - 3, objv + 3) != TCL_OK) { |
---|
| 859 | Tcl_DeleteCommand(interp, flow->name()); |
---|
[2875] | 860 | return TCL_ERROR; |
---|
[1429] | 861 | } |
---|
| 862 | Tcl_SetObjResult(interp, objv[2]); |
---|
[2877] | 863 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 864 | return TCL_OK; |
---|
| 865 | } |
---|
| 866 | |
---|
| 867 | static int |
---|
| 868 | FlowDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 869 | Tcl_Obj *const *objv) |
---|
[1429] | 870 | { |
---|
[3567] | 871 | for (int i = 2; i < objc; i++) { |
---|
[3597] | 872 | Flow *flow = NanoVis::getFlow(Tcl_GetString(objv[i])); |
---|
[3567] | 873 | if (flow != NULL) { |
---|
| 874 | Tcl_DeleteCommandFromToken(interp, flow->getCommandToken()); |
---|
[2875] | 875 | } |
---|
[1429] | 876 | } |
---|
[3630] | 877 | Flow::updatePending = true; |
---|
| 878 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 879 | return TCL_OK; |
---|
| 880 | } |
---|
| 881 | |
---|
[1431] | 882 | static int |
---|
| 883 | FlowExistsOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 884 | Tcl_Obj *const *objv) |
---|
[1431] | 885 | { |
---|
[3567] | 886 | bool value = false; |
---|
[3597] | 887 | Flow *flow = NanoVis::getFlow(Tcl_GetString(objv[2])); |
---|
[3567] | 888 | if (flow != NULL) { |
---|
[2875] | 889 | value = true; |
---|
[1431] | 890 | } |
---|
| 891 | Tcl_SetBooleanObj(Tcl_GetObjResult(interp), (int)value); |
---|
| 892 | return TCL_OK; |
---|
| 893 | } |
---|
| 894 | |
---|
[2875] | 895 | /** |
---|
| 896 | * \brief flow goto number |
---|
[1467] | 897 | */ |
---|
| 898 | static int |
---|
| 899 | FlowGotoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 900 | Tcl_Obj *const *objv) |
---|
[1467] | 901 | { |
---|
| 902 | int nSteps; |
---|
| 903 | if (Tcl_GetIntFromObj(interp, objv[2], &nSteps) != TCL_OK) { |
---|
| 904 | return TCL_ERROR; |
---|
| 905 | } |
---|
| 906 | if ((nSteps < 0) || (nSteps > SHRT_MAX)) { |
---|
[2875] | 907 | Tcl_AppendResult(interp, "flow goto: bad # of steps \"", |
---|
| 908 | Tcl_GetString(objv[2]), "\"", (char *)NULL); |
---|
| 909 | return TCL_ERROR; |
---|
[1467] | 910 | } |
---|
[3566] | 911 | NanoVis::resetFlows(); |
---|
[3630] | 912 | if (Flow::updatePending) { |
---|
[3935] | 913 | NanoVis::setFlowRanges(); |
---|
[1467] | 914 | } |
---|
[3567] | 915 | for (int i = 0; i < nSteps; i++) { |
---|
[3630] | 916 | NanoVis::licRenderer->convolve(); |
---|
[3566] | 917 | NanoVis::advectFlows(); |
---|
[1467] | 918 | } |
---|
[2877] | 919 | NanoVis::eventuallyRedraw(); |
---|
[1467] | 920 | return TCL_OK; |
---|
| 921 | } |
---|
| 922 | |
---|
[1429] | 923 | static int |
---|
| 924 | FlowNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 925 | Tcl_Obj *const *objv) |
---|
[1429] | 926 | { |
---|
| 927 | Tcl_Obj *listObjPtr; |
---|
| 928 | listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
[3567] | 929 | for (NanoVis::FlowHashmap::iterator itr = NanoVis::flowTable.begin(); |
---|
| 930 | itr != NanoVis::flowTable.end(); ++itr) { |
---|
[3597] | 931 | Flow *flow = itr->second; |
---|
[3567] | 932 | Tcl_Obj *objPtr = Tcl_NewStringObj(flow->name(), -1); |
---|
[2875] | 933 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
[1429] | 934 | } |
---|
| 935 | Tcl_SetObjResult(interp, listObjPtr); |
---|
| 936 | return TCL_OK; |
---|
| 937 | } |
---|
| 938 | |
---|
| 939 | static int |
---|
| 940 | FlowNextOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 941 | Tcl_Obj *const *objv) |
---|
[1429] | 942 | { |
---|
| 943 | assert(NanoVis::licRenderer != NULL); |
---|
[3630] | 944 | if (Flow::updatePending) { |
---|
[3935] | 945 | NanoVis::setFlowRanges(); |
---|
[1429] | 946 | } |
---|
| 947 | NanoVis::licRenderer->convolve(); |
---|
[3566] | 948 | NanoVis::advectFlows(); |
---|
[3630] | 949 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 950 | return TCL_OK; |
---|
| 951 | } |
---|
| 952 | |
---|
| 953 | static int |
---|
| 954 | FlowResetOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 955 | Tcl_Obj *const *objv) |
---|
[1429] | 956 | { |
---|
[3566] | 957 | NanoVis::resetFlows(); |
---|
[1429] | 958 | return TCL_OK; |
---|
| 959 | } |
---|
| 960 | |
---|
[3598] | 961 | #ifdef HAVE_FFMPEG |
---|
| 962 | |
---|
[2875] | 963 | /** |
---|
| 964 | * \brief Convert a Tcl_Obj representing the video format into its |
---|
| 965 | * integer id. |
---|
[2070] | 966 | * |
---|
[2875] | 967 | * \param clientData Not used |
---|
| 968 | * \param interp Interpreter to send results back to |
---|
| 969 | * \param switchName Not used |
---|
| 970 | * \param objPtr String representation |
---|
| 971 | * \param record Structure record |
---|
| 972 | * \param offset Not used |
---|
| 973 | * \param flags Not used |
---|
[2070] | 974 | * |
---|
[2875] | 975 | * \return The return value is a standard Tcl result. |
---|
[2070] | 976 | */ |
---|
| 977 | static int |
---|
[2875] | 978 | VideoFormatSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 979 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 980 | char *record, int offset, int flags) |
---|
[2070] | 981 | { |
---|
[3559] | 982 | Tcl_Obj **formatObjPtr = (Tcl_Obj **)(record + offset); |
---|
| 983 | Tcl_Obj *fmtObjPtr; |
---|
[2070] | 984 | const char *string; |
---|
| 985 | char c; |
---|
[3559] | 986 | int length; |
---|
[2070] | 987 | |
---|
[3559] | 988 | string = Tcl_GetStringFromObj(objPtr, &length); |
---|
[2070] | 989 | c = string[0]; |
---|
[3559] | 990 | if ((c == 'm') && (length > 1) && |
---|
| 991 | (strncmp(string, "mpeg", length) == 0)) { |
---|
| 992 | fmtObjPtr = Tcl_NewStringObj("mpeg1video", 10); |
---|
| 993 | } else if ((c == 't') && (strncmp(string, "theora", length) == 0)) { |
---|
| 994 | fmtObjPtr = Tcl_NewStringObj("theora", 6); |
---|
| 995 | } else if ((c == 'm') && (length > 1) && |
---|
| 996 | (strncmp(string, "mov", length) == 0)) { |
---|
| 997 | fmtObjPtr = Tcl_NewStringObj("mov", 3); |
---|
[2070] | 998 | } else { |
---|
[2875] | 999 | Tcl_AppendResult(interp, "bad video format \"", string, |
---|
| 1000 | "\": should be mpeg, theora, or mov", (char*)NULL); |
---|
[3559] | 1001 | return TCL_ERROR; |
---|
[2070] | 1002 | } |
---|
[3559] | 1003 | if (*formatObjPtr != NULL) { |
---|
| 1004 | Tcl_DecrRefCount(*formatObjPtr); |
---|
| 1005 | } |
---|
| 1006 | Tcl_IncrRefCount(fmtObjPtr); |
---|
| 1007 | *formatObjPtr = fmtObjPtr; |
---|
| 1008 | return TCL_OK; |
---|
[2070] | 1009 | } |
---|
| 1010 | |
---|
[3559] | 1011 | struct FlowVideoSwitches { |
---|
[2875] | 1012 | float frameRate; /**< Frame rate */ |
---|
| 1013 | int bitRate; /**< Video bitrate */ |
---|
| 1014 | int width, height; /**< Dimensions of video frame. */ |
---|
[3559] | 1015 | int numFrames; |
---|
| 1016 | Tcl_Obj *formatObjPtr; |
---|
[1515] | 1017 | }; |
---|
| 1018 | |
---|
[4056] | 1019 | static SwitchParseProc VideoFormatSwitchProc; |
---|
| 1020 | static SwitchCustom videoFormatSwitch = { |
---|
[1515] | 1021 | VideoFormatSwitchProc, NULL, 0, |
---|
| 1022 | }; |
---|
| 1023 | |
---|
[4056] | 1024 | static SwitchSpec flowVideoSwitches[] = { |
---|
| 1025 | {SWITCH_INT, "-bitrate", "value", |
---|
[3559] | 1026 | offsetof(FlowVideoSwitches, bitRate), 0}, |
---|
[4056] | 1027 | {SWITCH_CUSTOM, "-format", "string", |
---|
[3559] | 1028 | offsetof(FlowVideoSwitches, formatObjPtr), 0, 0, &videoFormatSwitch}, |
---|
[4056] | 1029 | {SWITCH_FLOAT, "-framerate", "value", |
---|
[3559] | 1030 | offsetof(FlowVideoSwitches, frameRate), 0}, |
---|
[4056] | 1031 | {SWITCH_INT, "-height", "integer", |
---|
[3559] | 1032 | offsetof(FlowVideoSwitches, height), 0}, |
---|
[4056] | 1033 | {SWITCH_INT, "-numframes", "count", |
---|
[3559] | 1034 | offsetof(FlowVideoSwitches, numFrames), 0}, |
---|
[4056] | 1035 | {SWITCH_INT, "-width", "integer", |
---|
[3559] | 1036 | offsetof(FlowVideoSwitches, width), 0}, |
---|
[4056] | 1037 | {SWITCH_END} |
---|
[1515] | 1038 | }; |
---|
| 1039 | |
---|
[3608] | 1040 | static bool |
---|
| 1041 | MakeImageFiles(char *tmpFileName, |
---|
| 1042 | int width, int height, int numFrames, |
---|
| 1043 | bool *cancelPtr) |
---|
[3559] | 1044 | { |
---|
| 1045 | struct pollfd pollResults; |
---|
[3605] | 1046 | pollResults.fd = fileno(nv::g_fIn); |
---|
[3559] | 1047 | pollResults.events = POLLIN; |
---|
| 1048 | #define PENDING_TIMEOUT 10 /* milliseconds. */ |
---|
| 1049 | int timeout = PENDING_TIMEOUT; |
---|
| 1050 | |
---|
[1508] | 1051 | int oldWidth, oldHeight; |
---|
[2877] | 1052 | oldWidth = NanoVis::winWidth; |
---|
| 1053 | oldHeight = NanoVis::winHeight; |
---|
[1429] | 1054 | |
---|
[3608] | 1055 | if (width != oldWidth || |
---|
| 1056 | height != oldHeight) { |
---|
[2875] | 1057 | // Resize to the requested size. |
---|
[3608] | 1058 | NanoVis::resizeOffscreenBuffer(width, height); |
---|
[1505] | 1059 | } |
---|
[3577] | 1060 | NanoVis::resetFlows(); |
---|
[3559] | 1061 | *cancelPtr = false; |
---|
[3608] | 1062 | bool result = true; |
---|
[3559] | 1063 | size_t length = strlen(tmpFileName); |
---|
[3608] | 1064 | for (int i = 1; i <= numFrames; i++) { |
---|
[3559] | 1065 | if (((i & 0xF) == 0) && (poll(&pollResults, 1, timeout) > 0)) { |
---|
[2875] | 1066 | /* If there's another command on stdin, that means the client is |
---|
| 1067 | * trying to cancel this operation. */ |
---|
[3559] | 1068 | *cancelPtr = true; |
---|
[2875] | 1069 | break; |
---|
| 1070 | } |
---|
[3630] | 1071 | |
---|
| 1072 | NanoVis::licRenderer->convolve(); |
---|
[3577] | 1073 | NanoVis::advectFlows(); |
---|
[2930] | 1074 | |
---|
| 1075 | int fboOrig; |
---|
| 1076 | glGetIntegerv(GL_FRAMEBUFFER_BINDING_EXT, &fboOrig); |
---|
| 1077 | |
---|
| 1078 | NanoVis::bindOffscreenBuffer(); |
---|
[3497] | 1079 | NanoVis::render(); |
---|
[2877] | 1080 | NanoVis::readScreen(); |
---|
[2930] | 1081 | |
---|
| 1082 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboOrig); |
---|
| 1083 | |
---|
[3559] | 1084 | sprintf(tmpFileName + length, "/image%d.ppm", i); |
---|
[3605] | 1085 | result = nv::writePPMFile(tmpFileName, NanoVis::screenBuffer, |
---|
[3608] | 1086 | width, height); |
---|
| 1087 | if (!result) { |
---|
[3559] | 1088 | break; |
---|
| 1089 | } |
---|
[1429] | 1090 | } |
---|
[3608] | 1091 | if (width != oldWidth || |
---|
| 1092 | height != oldHeight) { |
---|
[3559] | 1093 | NanoVis::resizeOffscreenBuffer(oldWidth, oldHeight); |
---|
| 1094 | } |
---|
| 1095 | tmpFileName[length] = '\0'; |
---|
[3577] | 1096 | NanoVis::resetFlows(); |
---|
[3559] | 1097 | return result; |
---|
| 1098 | } |
---|
[1522] | 1099 | |
---|
[3559] | 1100 | static int |
---|
| 1101 | MakeMovie(Tcl_Interp *interp, char *tmpFileName, const char *token, |
---|
| 1102 | FlowVideoSwitches *switchesPtr) |
---|
| 1103 | { |
---|
| 1104 | #ifndef FFMPEG |
---|
| 1105 | # define FFMPEG "/usr/bin/ffmpeg" |
---|
| 1106 | #endif |
---|
| 1107 | /* Generate the movie from the frame images by exec-ing ffmpeg */ |
---|
| 1108 | /* The ffmpeg command is |
---|
| 1109 | * ffmpeg -f image2 -i /var/tmp/xxxxx/image%d.ppm \ |
---|
| 1110 | * -b bitrate -f framerate /var/tmp/xxxxx/movie.mpeg |
---|
| 1111 | */ |
---|
| 1112 | char cmd[BUFSIZ]; |
---|
[3579] | 1113 | sprintf(cmd, "%s -f image2 -i %s/image%%d.ppm -f %s -b %d -r %f -", |
---|
[3559] | 1114 | FFMPEG, tmpFileName, Tcl_GetString(switchesPtr->formatObjPtr), |
---|
| 1115 | switchesPtr->bitRate, switchesPtr->frameRate); |
---|
[3578] | 1116 | TRACE("Enter: %s", cmd); |
---|
[3559] | 1117 | FILE *f; |
---|
| 1118 | f = popen(cmd, "r"); |
---|
| 1119 | if (f == NULL) { |
---|
| 1120 | Tcl_AppendResult(interp, "can't run ffmpeg: ", |
---|
| 1121 | Tcl_PosixError(interp), (char *)NULL); |
---|
| 1122 | return TCL_ERROR; |
---|
| 1123 | } |
---|
[4063] | 1124 | char *data = NULL; |
---|
[3559] | 1125 | size_t total = 0; |
---|
| 1126 | for (;;) { |
---|
| 1127 | ssize_t numRead; |
---|
| 1128 | char buffer[BUFSIZ]; |
---|
| 1129 | |
---|
[4063] | 1130 | numRead = fread(buffer, sizeof(char), BUFSIZ, f); |
---|
[3559] | 1131 | total += numRead; |
---|
| 1132 | if (numRead == 0) { // EOF |
---|
| 1133 | break; |
---|
| 1134 | } |
---|
| 1135 | if (numRead < 0) { // Error |
---|
[3578] | 1136 | ERROR("Can't read movie data: %s", |
---|
[3559] | 1137 | Tcl_PosixError(interp)); |
---|
| 1138 | Tcl_AppendResult(interp, "can't read movie data: ", |
---|
| 1139 | Tcl_PosixError(interp), (char *)NULL); |
---|
[2875] | 1140 | return TCL_ERROR; |
---|
| 1141 | } |
---|
[4063] | 1142 | data = (char *)realloc(data, total); |
---|
| 1143 | if (data == NULL) { |
---|
[3578] | 1144 | ERROR("Can't append movie data to buffer %d bytes", |
---|
[3559] | 1145 | numRead); |
---|
| 1146 | Tcl_AppendResult(interp, "can't append movie data to buffer", |
---|
| 1147 | (char *)NULL); |
---|
| 1148 | return TCL_ERROR; |
---|
| 1149 | } |
---|
[4063] | 1150 | memcpy(data + (total - numRead), buffer, numRead); |
---|
[3559] | 1151 | } |
---|
[4063] | 1152 | if (total == 0) { |
---|
[3578] | 1153 | ERROR("ffmpeg returned 0 bytes"); |
---|
| 1154 | } |
---|
[3584] | 1155 | // Send zero length to client so it can deal with error |
---|
| 1156 | sprintf(cmd,"nv>image -type movie -token \"%s\" -bytes %lu\n", |
---|
[4063] | 1157 | token, total); |
---|
| 1158 | // Memory is freed by this call |
---|
| 1159 | nv::sendDataToClient(cmd, data, total); |
---|
[3584] | 1160 | return TCL_OK; |
---|
[3559] | 1161 | } |
---|
[1429] | 1162 | |
---|
[3559] | 1163 | static int |
---|
| 1164 | FlowVideoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 1165 | Tcl_Obj *const *objv) |
---|
| 1166 | { |
---|
| 1167 | FlowVideoSwitches switches; |
---|
| 1168 | const char *token; |
---|
| 1169 | |
---|
| 1170 | token = Tcl_GetString(objv[2]); |
---|
| 1171 | switches.frameRate = 25.0f; // Default frame rate 25 fps |
---|
| 1172 | switches.bitRate = 6000000; // Default video bit rate. |
---|
| 1173 | switches.width = NanoVis::winWidth; |
---|
| 1174 | switches.height = NanoVis::winHeight; |
---|
| 1175 | switches.numFrames = 100; |
---|
| 1176 | switches.formatObjPtr = Tcl_NewStringObj("mpeg1video", 10); |
---|
| 1177 | Tcl_IncrRefCount(switches.formatObjPtr); |
---|
[4056] | 1178 | if (ParseSwitches(interp, flowVideoSwitches, |
---|
[3559] | 1179 | objc - 3, objv + 3, &switches, SWITCH_DEFAULTS) < 0) { |
---|
| 1180 | return TCL_ERROR; |
---|
[1429] | 1181 | } |
---|
[3559] | 1182 | if ((switches.width < 0) || (switches.width > SHRT_MAX) || |
---|
| 1183 | (switches.height < 0) || (switches.height > SHRT_MAX)) { |
---|
| 1184 | Tcl_AppendResult(interp, "bad dimensions for video", (char *)NULL); |
---|
| 1185 | return TCL_ERROR; |
---|
[1501] | 1186 | } |
---|
[3559] | 1187 | if ((switches.frameRate < 0.0f) || (switches.frameRate > 30.0f)) { |
---|
| 1188 | Tcl_AppendResult(interp, "bad frame rate.", (char *)NULL); |
---|
[2875] | 1189 | return TCL_ERROR; |
---|
[1429] | 1190 | } |
---|
[3559] | 1191 | if (switches.bitRate < 0) { |
---|
| 1192 | Tcl_AppendResult(interp, "bad bit rate.", (char *)NULL); |
---|
| 1193 | return TCL_ERROR; |
---|
| 1194 | } |
---|
| 1195 | if (NanoVis::licRenderer == NULL) { |
---|
| 1196 | Tcl_AppendResult(interp, "no lic renderer.", (char *)NULL); |
---|
| 1197 | return TCL_ERROR; |
---|
| 1198 | } |
---|
| 1199 | TRACE("FLOW started"); |
---|
| 1200 | |
---|
| 1201 | char *tmpFileName; |
---|
| 1202 | char nameTemplate[200]; |
---|
| 1203 | strcpy(nameTemplate,"/var/tmp/flowXXXXXX"); |
---|
| 1204 | tmpFileName = mkdtemp(nameTemplate); |
---|
| 1205 | int result = TCL_OK; |
---|
| 1206 | if (tmpFileName == NULL) { |
---|
| 1207 | Tcl_AppendResult(interp, "can't create temporary directory \"", |
---|
| 1208 | nameTemplate, "\" for frame image files: ", |
---|
| 1209 | Tcl_PosixError(interp), (char *)NULL); |
---|
| 1210 | return TCL_ERROR; |
---|
| 1211 | } |
---|
| 1212 | size_t length = strlen(tmpFileName); |
---|
| 1213 | bool canceled = false; |
---|
[3608] | 1214 | if (MakeImageFiles(tmpFileName, |
---|
| 1215 | switches.width, switches.height, switches.numFrames, |
---|
| 1216 | &canceled)) { |
---|
| 1217 | result = TCL_OK; |
---|
| 1218 | } else { |
---|
| 1219 | result = TCL_ERROR; |
---|
| 1220 | } |
---|
[3559] | 1221 | if ((result == TCL_OK) && (!canceled)) { |
---|
| 1222 | result = MakeMovie(interp, tmpFileName, token, &switches); |
---|
| 1223 | } |
---|
| 1224 | for (int i = 1; i <= switches.numFrames; i++) { |
---|
| 1225 | sprintf(tmpFileName + length, "/image%d.ppm", i); |
---|
| 1226 | unlink(tmpFileName); |
---|
[3605] | 1227 | } |
---|
[3559] | 1228 | tmpFileName[length] = '\0'; |
---|
| 1229 | rmdir(tmpFileName); |
---|
[4056] | 1230 | FreeSwitches(flowVideoSwitches, &switches, 0); |
---|
[3559] | 1231 | return result; |
---|
[1429] | 1232 | } |
---|
[2070] | 1233 | #else |
---|
[2875] | 1234 | /** |
---|
| 1235 | * Not implemented |
---|
| 1236 | */ |
---|
[2070] | 1237 | static int |
---|
| 1238 | FlowVideoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 1239 | Tcl_Obj *const *objv) |
---|
[2070] | 1240 | { |
---|
[2875] | 1241 | return TCL_OK; |
---|
[2070] | 1242 | } |
---|
[2875] | 1243 | #endif /* HAVE_FFMPEG */ |
---|
[1429] | 1244 | |
---|
[4056] | 1245 | static CmdSpec flowCmdOps[] = { |
---|
[1429] | 1246 | {"add", 1, FlowAddOp, 3, 0, "name ?option value...?",}, |
---|
[3567] | 1247 | {"delete", 1, FlowDeleteOp, 3, 0, "name ?name...?",}, |
---|
[1431] | 1248 | {"exists", 1, FlowExistsOp, 3, 3, "name",}, |
---|
[1467] | 1249 | {"goto", 1, FlowGotoOp, 3, 3, "nSteps",}, |
---|
[3567] | 1250 | {"names", 1, FlowNamesOp, 2, 2, "",}, |
---|
[1429] | 1251 | {"next", 2, FlowNextOp, 2, 2, "",}, |
---|
| 1252 | {"reset", 1, FlowResetOp, 2, 2, "",}, |
---|
[1517] | 1253 | {"video", 1, FlowVideoOp, 3, 0, "token ?switches...?",}, |
---|
[1429] | 1254 | }; |
---|
| 1255 | static int nFlowCmdOps = NumCmdSpecs(flowCmdOps); |
---|
| 1256 | |
---|
| 1257 | static int |
---|
| 1258 | FlowCmdProc(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 1259 | Tcl_Obj *const *objv) |
---|
[1429] | 1260 | { |
---|
| 1261 | Tcl_ObjCmdProc *proc; |
---|
| 1262 | |
---|
[4056] | 1263 | proc = GetOpFromObj(interp, nFlowCmdOps, flowCmdOps, |
---|
| 1264 | CMDSPEC_ARG1, objc, objv, 0); |
---|
[1429] | 1265 | if (proc == NULL) { |
---|
[2875] | 1266 | return TCL_ERROR; |
---|
[1429] | 1267 | } |
---|
| 1268 | return (*proc) (clientData, interp, objc, objv); |
---|
| 1269 | } |
---|
| 1270 | |
---|
[2875] | 1271 | /** |
---|
[3567] | 1272 | *\brief This procedure is invoked to initialize the "flow" command. |
---|
[1429] | 1273 | * |
---|
| 1274 | * Side effects: |
---|
[2875] | 1275 | * Creates the new command and adds a new entry into a global Tcl |
---|
| 1276 | * associative array. |
---|
[1429] | 1277 | */ |
---|
[3605] | 1278 | void |
---|
[3611] | 1279 | nv::FlowCmdInitProc(Tcl_Interp *interp, ClientData clientData) |
---|
[1429] | 1280 | { |
---|
[3605] | 1281 | Tcl_CreateObjCommand(interp, "flow", FlowCmdProc, clientData, NULL); |
---|
[1429] | 1282 | } |
---|