[3892] | 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 | */ |
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| 6 | #include <assert.h> |
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| 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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| 12 | #include <stdlib.h> |
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| 13 | #include <stddef.h> |
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| 14 | #include <limits.h> |
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| 15 | #include <stdint.h> |
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| 16 | #include <unistd.h> |
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| 17 | #include <poll.h> |
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| 18 | |
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| 19 | #include <tcl.h> |
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| 20 | |
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| 21 | #include <RpOutcome.h> |
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| 22 | |
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| 23 | #include <vrmath/Vector3f.h> |
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| 24 | |
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| 25 | #include "nvconf.h" |
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| 26 | |
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| 27 | #include "nanovisServer.h" |
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| 28 | #include "nanovis.h" |
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| 29 | #include "CmdProc.h" |
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| 30 | #include "Command.h" |
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| 31 | #include "PPMWriter.h" |
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| 32 | #include "FlowCmd.h" |
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| 33 | #include "FlowTypes.h" |
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| 34 | #include "Flow.h" |
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| 35 | #include "FlowBox.h" |
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| 36 | #include "FlowParticles.h" |
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| 37 | #include "Switch.h" |
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| 38 | #include "TransferFunction.h" |
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| 39 | #include "LIC.h" |
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| 40 | #include "Unirect.h" |
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| 41 | #include "VelocityArrowsSlice.h" |
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| 42 | #include "Volume.h" |
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| 43 | #include "Trace.h" |
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| 44 | |
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| 45 | using namespace nv; |
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| 46 | using namespace vrmath; |
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| 47 | |
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| 48 | static Rappture::SwitchParseProc AxisSwitchProc; |
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| 49 | static Rappture::SwitchCustom axisSwitch = { |
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| 50 | AxisSwitchProc, NULL, 0, |
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| 51 | }; |
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| 52 | |
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| 53 | static Rappture::SwitchParseProc ColorSwitchProc; |
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| 54 | static Rappture::SwitchCustom colorSwitch = { |
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| 55 | ColorSwitchProc, NULL, 0, |
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| 56 | }; |
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| 57 | |
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| 58 | static Rappture::SwitchParseProc PointSwitchProc; |
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| 59 | static Rappture::SwitchCustom pointSwitch = { |
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| 60 | PointSwitchProc, NULL, 0, |
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| 61 | }; |
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| 62 | |
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| 63 | static Rappture::SwitchParseProc PositionSwitchProc; |
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| 64 | static Rappture::SwitchCustom positionSwitch = { |
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| 65 | PositionSwitchProc, NULL, 0, |
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| 66 | }; |
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| 67 | |
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| 68 | static Rappture::SwitchParseProc TransferFunctionSwitchProc; |
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| 69 | static Rappture::SwitchCustom transferFunctionSwitch = { |
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| 70 | TransferFunctionSwitchProc, NULL, 0, |
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| 71 | }; |
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| 72 | |
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| 73 | Rappture::SwitchSpec Flow::_switches[] = { |
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| 74 | {Rappture::SWITCH_FLOAT, "-ambient", "value", |
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| 75 | offsetof(FlowValues, ambient), 0}, |
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| 76 | {Rappture::SWITCH_BOOLEAN, "-arrows", "boolean", |
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| 77 | offsetof(FlowValues, showArrows), 0}, |
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| 78 | {Rappture::SWITCH_CUSTOM, "-axis", "axis", |
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| 79 | offsetof(FlowValues, slicePos.axis), 0, 0, &axisSwitch}, |
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| 80 | {Rappture::SWITCH_FLOAT, "-diffuse", "value", |
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| 81 | offsetof(FlowValues, diffuse), 0}, |
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| 82 | {Rappture::SWITCH_BOOLEAN, "-hide", "boolean", |
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| 83 | offsetof(FlowValues, isHidden), 0}, |
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| 84 | {Rappture::SWITCH_BOOLEAN, "-light2side", "boolean", |
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| 85 | offsetof(FlowValues, twoSidedLighting), 0}, |
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| 86 | {Rappture::SWITCH_FLOAT, "-opacity", "value", |
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| 87 | offsetof(FlowValues, opacity), 0}, |
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| 88 | {Rappture::SWITCH_BOOLEAN, "-outline", "boolean", |
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| 89 | offsetof(FlowValues, showOutline), 0}, |
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| 90 | {Rappture::SWITCH_CUSTOM, "-position", "number", |
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| 91 | offsetof(FlowValues, slicePos), 0, 0, &positionSwitch}, |
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| 92 | {Rappture::SWITCH_BOOLEAN, "-slice", "boolean", |
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| 93 | offsetof(FlowValues, sliceVisible), 0}, |
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| 94 | {Rappture::SWITCH_FLOAT, "-specularExp", "value", |
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| 95 | offsetof(FlowValues, specularExp), 0}, |
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| 96 | {Rappture::SWITCH_FLOAT, "-specularLevel", "value", |
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| 97 | offsetof(FlowValues, specular), 0}, |
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| 98 | {Rappture::SWITCH_CUSTOM, "-transferfunction", "name", |
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| 99 | offsetof(FlowValues, transferFunction), 0, 0, &transferFunctionSwitch}, |
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| 100 | {Rappture::SWITCH_BOOLEAN, "-volume", "boolean", |
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| 101 | offsetof(FlowValues, showVolume), 0}, |
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| 102 | {Rappture::SWITCH_END} |
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| 103 | }; |
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| 104 | |
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| 105 | Rappture::SwitchSpec FlowParticles::_switches[] = { |
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| 106 | {Rappture::SWITCH_CUSTOM, "-axis", "axis", |
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| 107 | offsetof(FlowParticlesValues, position.axis), 0, 0, &axisSwitch}, |
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| 108 | {Rappture::SWITCH_CUSTOM, "-color", "{r g b a}", |
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| 109 | offsetof(FlowParticlesValues, color), 0, 0, &colorSwitch}, |
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| 110 | {Rappture::SWITCH_BOOLEAN, "-hide", "boolean", |
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| 111 | offsetof(FlowParticlesValues, isHidden), 0}, |
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| 112 | {Rappture::SWITCH_CUSTOM, "-position", "number", |
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| 113 | offsetof(FlowParticlesValues, position), 0, 0, &positionSwitch}, |
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| 114 | {Rappture::SWITCH_FLOAT, "-size", "float", |
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| 115 | offsetof(FlowParticlesValues, particleSize), 0}, |
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| 116 | {Rappture::SWITCH_END} |
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| 117 | }; |
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| 118 | |
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| 119 | Rappture::SwitchSpec FlowBox::_switches[] = { |
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| 120 | {Rappture::SWITCH_CUSTOM, "-color", "{r g b a}", |
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| 121 | offsetof(FlowBoxValues, color), 0, 0, &colorSwitch}, |
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| 122 | {Rappture::SWITCH_CUSTOM, "-corner1", "{x y z}", |
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| 123 | offsetof(FlowBoxValues, corner1), 0, 0, &pointSwitch}, |
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| 124 | {Rappture::SWITCH_CUSTOM, "-corner2", "{x y z}", |
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| 125 | offsetof(FlowBoxValues, corner2), 0, 0, &pointSwitch}, |
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| 126 | {Rappture::SWITCH_BOOLEAN, "-hide", "boolean", |
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| 127 | offsetof(FlowBoxValues, isHidden), 0}, |
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| 128 | {Rappture::SWITCH_FLOAT, "-linewidth", "number", |
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| 129 | offsetof(FlowBoxValues, lineWidth), 0}, |
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| 130 | {Rappture::SWITCH_END} |
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| 131 | }; |
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| 132 | |
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| 133 | static int |
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| 134 | FlowDataFileOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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| 135 | Tcl_Obj *const *objv) |
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| 136 | { |
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| 137 | Rappture::Outcome result; |
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| 138 | |
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| 139 | const char *fileName; |
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| 140 | fileName = Tcl_GetString(objv[3]); |
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| 141 | TRACE("File: %s", fileName); |
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| 142 | |
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| 143 | int nComponents; |
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| 144 | if (Tcl_GetIntFromObj(interp, objv[4], &nComponents) != TCL_OK) { |
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| 145 | return TCL_ERROR; |
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| 146 | } |
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| 147 | if ((nComponents < 1) || (nComponents > 4)) { |
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| 148 | Tcl_AppendResult(interp, "bad # of components \"", |
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| 149 | Tcl_GetString(objv[4]), "\"", (char *)NULL); |
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| 150 | return TCL_ERROR; |
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| 151 | } |
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| 152 | Rappture::Buffer buf; |
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| 153 | if (!buf.load(result, fileName)) { |
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| 154 | Tcl_AppendResult(interp, "can't load data from \"", fileName, "\": ", |
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| 155 | result.remark(), (char *)NULL); |
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| 156 | return TCL_ERROR; |
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| 157 | } |
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| 158 | |
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| 159 | Rappture::Unirect3d *dataPtr; |
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| 160 | dataPtr = new Rappture::Unirect3d(nComponents); |
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| 161 | Flow *flow = (Flow *)clientData; |
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| 162 | size_t length = buf.size(); |
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| 163 | char *bytes = (char *)buf.bytes(); |
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| 164 | if ((length > 4) && (strncmp(bytes, "<DX>", 4) == 0)) { |
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| 165 | if (!dataPtr->importDx(result, nComponents, length-4, bytes+4)) { |
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| 166 | Tcl_AppendResult(interp, result.remark(), (char *)NULL); |
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| 167 | delete dataPtr; |
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| 168 | return TCL_ERROR; |
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| 169 | } |
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| 170 | } else if ((length > 10) && (strncmp(bytes, "unirect3d ", 10) == 0)) { |
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| 171 | if (dataPtr->parseBuffer(interp, buf) != TCL_OK) { |
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| 172 | delete dataPtr; |
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| 173 | return TCL_ERROR; |
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| 174 | } |
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| 175 | } else if ((length > 10) && (strncmp(bytes, "unirect2d ", 10) == 0)) { |
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| 176 | Rappture::Unirect2d *u2dPtr; |
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| 177 | u2dPtr = new Rappture::Unirect2d(nComponents); |
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| 178 | if (u2dPtr->parseBuffer(interp, buf) != TCL_OK) { |
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| 179 | delete u2dPtr; |
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| 180 | return TCL_ERROR; |
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| 181 | } |
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| 182 | dataPtr->convert(u2dPtr); |
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| 183 | delete u2dPtr; |
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| 184 | } else { |
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| 185 | TRACE("header is %.14s", buf.bytes()); |
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| 186 | if (!dataPtr->importDx(result, nComponents, length, bytes)) { |
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| 187 | Tcl_AppendResult(interp, result.remark(), (char *)NULL); |
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| 188 | delete dataPtr; |
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| 189 | return TCL_ERROR; |
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| 190 | } |
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| 191 | } |
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| 192 | if (dataPtr->nValues() == 0) { |
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| 193 | delete dataPtr; |
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| 194 | Tcl_AppendResult(interp, "no data found in \"", fileName, "\"", |
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| 195 | (char *)NULL); |
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| 196 | return TCL_ERROR; |
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| 197 | } |
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| 198 | flow->data(dataPtr); |
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| 199 | Flow::updatePending = true; |
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| 200 | NanoVis::eventuallyRedraw(); |
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| 201 | return TCL_OK; |
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| 202 | } |
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| 203 | |
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| 204 | /** |
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| 205 | * $flow data follows nbytes nComponents |
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| 206 | */ |
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| 207 | static int |
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| 208 | FlowDataFollowsOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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| 209 | Tcl_Obj *const *objv) |
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| 210 | { |
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| 211 | Rappture::Outcome result; |
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| 212 | |
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| 213 | TRACE("Enter"); |
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| 214 | |
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| 215 | int nBytes; |
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| 216 | if (Tcl_GetIntFromObj(interp, objv[3], &nBytes) != TCL_OK) { |
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| 217 | ERROR("Bad nBytes \"%s\"", Tcl_GetString(objv[3])); |
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| 218 | return TCL_ERROR; |
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| 219 | } |
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| 220 | if (nBytes <= 0) { |
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| 221 | Tcl_AppendResult(interp, "bad # bytes request \"", |
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| 222 | Tcl_GetString(objv[3]), "\" for \"data follows\"", (char *)NULL); |
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| 223 | ERROR("Bad nbytes %d", nBytes); |
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| 224 | return TCL_ERROR; |
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| 225 | } |
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| 226 | int nComponents; |
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| 227 | if (Tcl_GetIntFromObj(interp, objv[4], &nComponents) != TCL_OK) { |
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| 228 | ERROR("Bad # of components \"%s\"", Tcl_GetString(objv[4])); |
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| 229 | return TCL_ERROR; |
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| 230 | } |
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| 231 | if (nComponents <= 0) { |
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| 232 | Tcl_AppendResult(interp, "bad # of components request \"", |
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| 233 | Tcl_GetString(objv[4]), "\" for \"data follows\"", (char *)NULL); |
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| 234 | ERROR("Bad # of components %d", nComponents); |
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| 235 | return TCL_ERROR; |
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| 236 | } |
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| 237 | Rappture::Buffer buf(nBytes); |
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| 238 | TRACE("Flow data loading bytes: %d components: %d", nBytes, nComponents); |
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| 239 | if (GetDataStream(interp, buf, nBytes) != TCL_OK) { |
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| 240 | return TCL_ERROR; |
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| 241 | } |
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| 242 | char *bytes = (char *)buf.bytes(); |
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| 243 | size_t length = buf.size(); |
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| 244 | |
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| 245 | Rappture::Unirect3d *dataPtr; |
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| 246 | dataPtr = new Rappture::Unirect3d(nComponents); |
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| 247 | |
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| 248 | Flow *flow = (Flow *)clientData; |
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| 249 | if ((length > 4) && (strncmp(bytes, "<DX>", 4) == 0)) { |
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| 250 | if (!dataPtr->importDx(result, nComponents, length - 4, bytes + 4)) { |
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| 251 | Tcl_AppendResult(interp, result.remark(), (char *)NULL); |
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| 252 | delete dataPtr; |
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| 253 | return TCL_ERROR; |
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| 254 | } |
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| 255 | } else if ((length > 10) && (strncmp(bytes, "unirect3d ", 10) == 0)) { |
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| 256 | if (dataPtr->parseBuffer(interp, buf) != TCL_OK) { |
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| 257 | delete dataPtr; |
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| 258 | return TCL_ERROR; |
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| 259 | } |
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| 260 | } else if ((length > 10) && (strncmp(bytes, "unirect2d ", 10) == 0)) { |
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| 261 | Rappture::Unirect2d *u2dPtr; |
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| 262 | u2dPtr = new Rappture::Unirect2d(nComponents); |
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| 263 | if (u2dPtr->parseBuffer(interp, buf) != TCL_OK) { |
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| 264 | delete u2dPtr; |
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| 265 | return TCL_ERROR; |
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| 266 | } |
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| 267 | dataPtr->convert(u2dPtr); |
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| 268 | delete u2dPtr; |
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| 269 | #if 0 |
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| 270 | } else if ((length > 14) && (strncmp(bytes, "# vtk DataFile", 14) == 0)) { |
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| 271 | TRACE("VTK loading..."); |
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| 272 | std::stringstream fdata; |
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| 273 | fdata.write(bytes, length); |
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| 274 | if (length <= 0) { |
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| 275 | ERROR("data buffer is empty"); |
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| 276 | abort(); |
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| 277 | } |
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| 278 | Rappture::Outcome context; |
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| 279 | volume = load_vtk_volume_stream(context, tag, fdata); |
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| 280 | if (volume == NULL) { |
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| 281 | Tcl_AppendResult(interp, context.remark(), (char*)NULL); |
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| 282 | return TCL_ERROR; |
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| 283 | } |
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| 284 | #endif |
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| 285 | } else { |
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| 286 | TRACE("header is %.14s", buf.bytes()); |
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| 287 | if (!dataPtr->importDx(result, nComponents, length, bytes)) { |
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| 288 | Tcl_AppendResult(interp, result.remark(), (char *)NULL); |
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| 289 | delete dataPtr; |
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| 290 | return TCL_ERROR; |
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| 291 | } |
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| 292 | } |
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| 293 | if (dataPtr->nValues() == 0) { |
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| 294 | delete dataPtr; |
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| 295 | Tcl_AppendResult(interp, "no data found in stream", (char *)NULL); |
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| 296 | return TCL_ERROR; |
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| 297 | } |
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| 298 | TRACE("nx = %d ny = %d nz = %d", |
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| 299 | dataPtr->xNum(), dataPtr->yNum(), dataPtr->zNum()); |
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| 300 | TRACE("x0 = %lg y0 = %lg z0 = %lg", |
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| 301 | dataPtr->xMin(), dataPtr->yMin(), dataPtr->zMin()); |
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| 302 | TRACE("lx = %lg ly = %lg lz = %lg", |
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| 303 | dataPtr->xMax() - dataPtr->xMin(), |
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| 304 | dataPtr->yMax() - dataPtr->yMin(), |
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| 305 | dataPtr->zMax() - dataPtr->zMin()); |
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| 306 | TRACE("dx = %lg dy = %lg dz = %lg", |
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| 307 | dataPtr->xNum() > 1 ? (dataPtr->xMax() - dataPtr->xMin())/(dataPtr->xNum()-1) : 0, |
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| 308 | dataPtr->yNum() > 1 ? (dataPtr->yMax() - dataPtr->yMin())/(dataPtr->yNum()-1) : 0, |
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| 309 | dataPtr->zNum() > 1 ? (dataPtr->zMax() - dataPtr->zMin())/(dataPtr->zNum()-1) : 0); |
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| 310 | TRACE("magMin = %lg magMax = %lg", |
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| 311 | dataPtr->magMin(), dataPtr->magMax()); |
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| 312 | flow->data(dataPtr); |
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| 313 | { |
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| 314 | char info[1024]; |
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| 315 | int length = |
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| 316 | sprintf(info, "nv>data tag %s min %g max %g\n", |
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| 317 | flow->name(), dataPtr->magMin(), dataPtr->magMax()); |
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| 318 | #ifdef USE_THREADS |
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| 319 | queueResponse(info, (size_t)length, Response::VOLATILE); |
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| 320 | #else |
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| 321 | if (SocketWrite(info, (size_t)length) < 0) { |
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| 322 | return TCL_ERROR; |
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| 323 | } |
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| 324 | #endif |
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| 325 | } |
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| 326 | Flow::updatePending = true; |
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| 327 | NanoVis::eventuallyRedraw(); |
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| 328 | return TCL_OK; |
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| 329 | } |
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| 330 | |
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| 331 | static Rappture::CmdSpec flowDataOps[] = { |
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| 332 | {"file", 2, FlowDataFileOp, 5, 5, "fileName nComponents",}, |
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| 333 | {"follows", 2, FlowDataFollowsOp, 5, 5, "size nComponents",}, |
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| 334 | }; |
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| 335 | static int nFlowDataOps = NumCmdSpecs(flowDataOps); |
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| 336 | |
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| 337 | static int |
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| 338 | FlowDataOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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| 339 | Tcl_Obj *const *objv) |
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| 340 | { |
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| 341 | Tcl_ObjCmdProc *proc; |
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| 342 | |
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| 343 | proc = Rappture::GetOpFromObj(interp, nFlowDataOps, flowDataOps, |
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| 344 | Rappture::CMDSPEC_ARG2, objc, objv, 0); |
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| 345 | if (proc == NULL) { |
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| 346 | return TCL_ERROR; |
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| 347 | } |
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| 348 | return (*proc) (clientData, interp, objc, objv); |
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| 349 | } |
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| 350 | |
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| 351 | /** |
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| 352 | * \brief Convert a Tcl_Obj representing the label of a child node into its |
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| 353 | * integer node id. |
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| 354 | * |
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| 355 | * \param clientData Flag indicating if the node is considered before or |
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| 356 | * after the insertion position. |
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| 357 | * \param interp Interpreter to send results back to |
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| 358 | * \param switchName Not used |
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| 359 | * \param objPtr String representation |
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| 360 | * \param record Structure record |
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| 361 | * \param offset Not used |
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| 362 | * \param flags Not used |
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| 363 | * |
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| 364 | * \return The return value is a standard Tcl result. |
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| 365 | */ |
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| 366 | static int |
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| 367 | AxisSwitchProc(ClientData clientData, Tcl_Interp *interp, |
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| 368 | const char *switchName, Tcl_Obj *objPtr, |
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| 369 | char *record, int offset, int flags) |
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| 370 | { |
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| 371 | const char *string = Tcl_GetString(objPtr); |
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| 372 | if (string[1] == '\0') { |
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| 373 | FlowSliceAxis *axisPtr = (FlowSliceAxis *)(record + offset); |
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| 374 | char c; |
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| 375 | c = tolower((unsigned char)string[0]); |
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| 376 | if (c == 'x') { |
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| 377 | *axisPtr = AXIS_X; |
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| 378 | return TCL_OK; |
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| 379 | } else if (c == 'y') { |
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| 380 | *axisPtr = AXIS_Y; |
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| 381 | return TCL_OK; |
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| 382 | } else if (c == 'z') { |
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| 383 | *axisPtr = AXIS_Z; |
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| 384 | return TCL_OK; |
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| 385 | } |
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| 386 | /*FALLTHRU*/ |
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| 387 | } |
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| 388 | Tcl_AppendResult(interp, "bad axis \"", string, |
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| 389 | "\": should be x, y, or z", (char*)NULL); |
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| 390 | return TCL_ERROR; |
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| 391 | } |
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| 392 | |
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| 393 | /** |
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| 394 | * \brief Convert a Tcl_Obj representing the label of a list of four color |
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| 395 | * components in to a RGBA color value. |
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| 396 | * |
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| 397 | * \param clientData Flag indicating if the node is considered before or |
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| 398 | * after the insertion position. |
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| 399 | * \param interp Interpreter to send results back to |
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| 400 | * \param switchName Not used |
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| 401 | * \param objPtr String representation |
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| 402 | * \param record Structure record |
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| 403 | * \param offset Not used |
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| 404 | * \param flags Not used |
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| 405 | * |
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| 406 | * \return The return value is a standard Tcl result. |
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| 407 | */ |
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| 408 | static int |
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| 409 | ColorSwitchProc(ClientData clientData, Tcl_Interp *interp, |
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| 410 | const char *switchName, Tcl_Obj *objPtr, |
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| 411 | char *record, int offset, int flags) |
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| 412 | { |
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| 413 | Tcl_Obj **objv; |
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| 414 | int objc; |
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| 415 | FlowColor *color = (FlowColor *)(record + offset); |
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| 416 | |
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| 417 | if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { |
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| 418 | return TCL_ERROR; |
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| 419 | } |
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| 420 | if ((objc < 3) || (objc > 4)) { |
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| 421 | Tcl_AppendResult(interp, "wrong # of elements in color definition", |
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| 422 | (char *)NULL); |
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| 423 | return TCL_ERROR; |
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| 424 | } |
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| 425 | float values[4]; |
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| 426 | int i; |
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| 427 | values[3] = 1.0f; |
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| 428 | for (i = 0; i < objc; i++) { |
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| 429 | float value; |
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| 430 | |
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| 431 | if (GetFloatFromObj(interp, objv[i], &value) != TCL_OK) { |
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| 432 | return TCL_ERROR; |
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| 433 | } |
---|
| 434 | if ((value < 0.0) || (value > 1.0)) { |
---|
| 435 | Tcl_AppendResult(interp, "bad component value in \"", |
---|
| 436 | Tcl_GetString(objPtr), "\": color values must be [0..1]", |
---|
| 437 | (char *)NULL); |
---|
| 438 | return TCL_ERROR; |
---|
| 439 | } |
---|
| 440 | values[i] = value; |
---|
| 441 | } |
---|
| 442 | color->r = values[0]; |
---|
| 443 | color->g = values[1]; |
---|
| 444 | color->b = values[2]; |
---|
| 445 | color->a = values[3]; |
---|
| 446 | return TCL_OK; |
---|
| 447 | } |
---|
| 448 | |
---|
| 449 | /** |
---|
| 450 | * \brief Convert a Tcl_Obj representing the a 3-D coordinate into a point. |
---|
| 451 | * |
---|
| 452 | * \param clientData Flag indicating if the node is considered before or |
---|
| 453 | * after the insertion position. |
---|
| 454 | * \param interp Interpreter to send results back to |
---|
| 455 | * \param switchName Not used |
---|
| 456 | * \param objPtr String representation |
---|
| 457 | * \param record Structure record |
---|
| 458 | * \param offset Not used |
---|
| 459 | * \param flags Not used |
---|
| 460 | * |
---|
| 461 | * \return The return value is a standard Tcl result. |
---|
| 462 | */ |
---|
| 463 | static int |
---|
| 464 | PointSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 465 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 466 | char *record, int offset, int flags) |
---|
| 467 | { |
---|
| 468 | FlowPoint *point = (FlowPoint *)(record + offset); |
---|
| 469 | int objc; |
---|
| 470 | Tcl_Obj **objv; |
---|
| 471 | |
---|
| 472 | if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { |
---|
| 473 | return TCL_ERROR; |
---|
| 474 | } |
---|
| 475 | if (objc != 3) { |
---|
| 476 | Tcl_AppendResult(interp, "wrong # of elements for box coordinates: " |
---|
| 477 | " should be \"x y z\"", (char *)NULL); |
---|
| 478 | return TCL_ERROR; |
---|
| 479 | } |
---|
| 480 | float values[3]; |
---|
| 481 | int i; |
---|
| 482 | for (i = 0; i < objc; i++) { |
---|
| 483 | float value; |
---|
| 484 | |
---|
| 485 | if (GetFloatFromObj(interp, objv[i], &value) != TCL_OK) { |
---|
| 486 | return TCL_ERROR; |
---|
| 487 | } |
---|
| 488 | values[i] = value; |
---|
| 489 | } |
---|
| 490 | point->x = values[0]; |
---|
| 491 | point->y = values[1]; |
---|
| 492 | point->z = values[2]; |
---|
| 493 | return TCL_OK; |
---|
| 494 | } |
---|
| 495 | |
---|
| 496 | /** |
---|
| 497 | * \brief Convert a Tcl_Obj representing the a 3-D coordinate into a point. |
---|
| 498 | * |
---|
| 499 | * \param clientData Flag indicating if the node is considered before or |
---|
| 500 | * after the insertion position. |
---|
| 501 | * \param interp Interpreter to send results back to |
---|
| 502 | * \param switchName Not used |
---|
| 503 | * \param objPtr String representation |
---|
| 504 | * \param record Structure record |
---|
| 505 | * \param offset Not used |
---|
| 506 | * \param flags Not used |
---|
| 507 | * |
---|
| 508 | * \return The return value is a standard Tcl result. |
---|
| 509 | */ |
---|
| 510 | static int |
---|
| 511 | PositionSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 512 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 513 | char *record, int offset, int flags) |
---|
| 514 | { |
---|
| 515 | FlowPosition *posPtr = (FlowPosition *)(record + offset); |
---|
| 516 | const char *string; |
---|
| 517 | char *p; |
---|
| 518 | |
---|
| 519 | string = Tcl_GetString(objPtr); |
---|
| 520 | p = strrchr((char *)string, '%'); |
---|
| 521 | if (p == NULL) { |
---|
| 522 | float value; |
---|
| 523 | |
---|
| 524 | if (GetFloatFromObj(interp, objPtr, &value) != TCL_OK) { |
---|
| 525 | return TCL_ERROR; |
---|
| 526 | } |
---|
| 527 | posPtr->value = value; |
---|
| 528 | posPtr->flags = ABSPOS; |
---|
| 529 | } else { |
---|
| 530 | double value; |
---|
| 531 | |
---|
| 532 | *p = '\0'; |
---|
| 533 | if (Tcl_GetDouble(interp, string, &value) != TCL_OK) { |
---|
| 534 | return TCL_ERROR; |
---|
| 535 | } |
---|
| 536 | posPtr->value = (float)value * 0.01; |
---|
| 537 | posPtr->flags = RELPOS; |
---|
| 538 | } |
---|
| 539 | return TCL_OK; |
---|
| 540 | } |
---|
| 541 | |
---|
| 542 | /** |
---|
| 543 | * \brief Convert a Tcl_Obj representing the transfer function into a |
---|
| 544 | * TransferFunction pointer. |
---|
| 545 | * |
---|
| 546 | * The transfer function must have been previously defined. |
---|
| 547 | * |
---|
| 548 | * \param clientData Flag indicating if the node is considered before or |
---|
| 549 | * after the insertion position. |
---|
| 550 | * \param interp Interpreter to send results back to |
---|
| 551 | * \param switchName Not used |
---|
| 552 | * \param objPtr String representation |
---|
| 553 | * \param record Structure record |
---|
| 554 | * \param offset Not used |
---|
| 555 | * \param flags Not used |
---|
| 556 | * |
---|
| 557 | * \return The return value is a standard Tcl result. |
---|
| 558 | */ |
---|
| 559 | static int |
---|
| 560 | TransferFunctionSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 561 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 562 | char *record, int offset, int flags) |
---|
| 563 | { |
---|
| 564 | TransferFunction **funcPtrPtr = (TransferFunction **)(record + offset); |
---|
| 565 | TransferFunction *tf = NanoVis::getTransferFunction(Tcl_GetString(objPtr)); |
---|
| 566 | if (tf == NULL) { |
---|
| 567 | Tcl_AppendResult(interp, "transfer function \"", Tcl_GetString(objPtr), |
---|
| 568 | "\" is not defined", (char*)NULL); |
---|
| 569 | return TCL_ERROR; |
---|
| 570 | } |
---|
| 571 | *funcPtrPtr = tf; |
---|
| 572 | return TCL_OK; |
---|
| 573 | } |
---|
| 574 | |
---|
| 575 | static int |
---|
| 576 | FlowConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 577 | Tcl_Obj *const *objv) |
---|
| 578 | { |
---|
| 579 | Flow *flow = (Flow *)clientData; |
---|
| 580 | |
---|
| 581 | if (flow->parseSwitches(interp, objc - 2, objv + 2) != TCL_OK) { |
---|
| 582 | return TCL_ERROR; |
---|
| 583 | } |
---|
| 584 | if (flow->configure()) { |
---|
| 585 | Flow::updatePending = true; |
---|
| 586 | } |
---|
| 587 | NanoVis::eventuallyRedraw(); |
---|
| 588 | return TCL_OK; |
---|
| 589 | } |
---|
| 590 | |
---|
| 591 | static int |
---|
| 592 | FlowParticlesAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 593 | Tcl_Obj *const *objv) |
---|
| 594 | { |
---|
| 595 | Flow *flow = (Flow *)clientData; |
---|
| 596 | const char *particlesName = Tcl_GetString(objv[3]); |
---|
| 597 | FlowParticles *particles = flow->createParticles(particlesName); |
---|
| 598 | if (particles == NULL) { |
---|
| 599 | Tcl_AppendResult(interp, "Flow particle injection plane \"", |
---|
| 600 | particlesName, |
---|
| 601 | "\" already exists or could not be created", |
---|
| 602 | (char*)NULL); |
---|
| 603 | return TCL_ERROR; |
---|
| 604 | } |
---|
| 605 | if (particles->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 606 | flow->deleteParticles(particlesName); |
---|
| 607 | return TCL_ERROR; |
---|
| 608 | } |
---|
| 609 | particles->configure(); |
---|
| 610 | Flow::updatePending = true; |
---|
| 611 | NanoVis::eventuallyRedraw(); |
---|
| 612 | Tcl_SetObjResult(interp, objv[3]); |
---|
| 613 | return TCL_OK; |
---|
| 614 | } |
---|
| 615 | |
---|
| 616 | static int |
---|
| 617 | FlowParticlesConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 618 | Tcl_Obj *const *objv) |
---|
| 619 | { |
---|
| 620 | Flow *flow = (Flow *)clientData; |
---|
| 621 | const char *particlesName = Tcl_GetString(objv[3]); |
---|
| 622 | FlowParticles *particles = flow->getParticles(particlesName); |
---|
| 623 | if (particles == NULL) { |
---|
| 624 | Tcl_AppendResult(interp, "Flow particle injection plane \"", |
---|
| 625 | particlesName, "\" not found", |
---|
| 626 | (char*)NULL); |
---|
| 627 | return TCL_ERROR; |
---|
| 628 | } |
---|
| 629 | if (particles->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 630 | return TCL_ERROR; |
---|
| 631 | } |
---|
| 632 | if (particles->configure()) { |
---|
| 633 | Flow::updatePending = true; |
---|
| 634 | } |
---|
| 635 | NanoVis::eventuallyRedraw(); |
---|
| 636 | return TCL_OK; |
---|
| 637 | } |
---|
| 638 | |
---|
| 639 | static int |
---|
| 640 | FlowParticlesDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 641 | Tcl_Obj *const *objv) |
---|
| 642 | { |
---|
| 643 | Flow *flow = (Flow *)clientData; |
---|
| 644 | for (int i = 3; i < objc; i++) { |
---|
| 645 | flow->deleteParticles(Tcl_GetString(objv[i])); |
---|
| 646 | } |
---|
| 647 | NanoVis::eventuallyRedraw(); |
---|
| 648 | return TCL_OK; |
---|
| 649 | } |
---|
| 650 | |
---|
| 651 | static int |
---|
| 652 | FlowParticlesNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 653 | Tcl_Obj *const *objv) |
---|
| 654 | { |
---|
| 655 | Flow *flow = (Flow *)clientData; |
---|
| 656 | Tcl_Obj *listObjPtr; |
---|
| 657 | listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
| 658 | std::vector<std::string> names; |
---|
| 659 | flow->getParticlesNames(names); |
---|
| 660 | for (std::vector<std::string>::iterator itr = names.begin(); |
---|
| 661 | itr != names.end(); ++itr) { |
---|
| 662 | Tcl_Obj *objPtr = Tcl_NewStringObj(itr->c_str(), -1); |
---|
| 663 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
| 664 | } |
---|
| 665 | Tcl_SetObjResult(interp, listObjPtr); |
---|
| 666 | return TCL_OK; |
---|
| 667 | } |
---|
| 668 | |
---|
| 669 | static Rappture::CmdSpec flowParticlesOps[] = { |
---|
| 670 | {"add", 1, FlowParticlesAddOp, 4, 0, "name ?switches?",}, |
---|
| 671 | {"configure", 1, FlowParticlesConfigureOp, 4, 0, "name ?switches?",}, |
---|
| 672 | {"delete", 1, FlowParticlesDeleteOp, 4, 0, "name ?name...?"}, |
---|
| 673 | {"names", 1, FlowParticlesNamesOp, 3, 3, ""}, |
---|
| 674 | }; |
---|
| 675 | |
---|
| 676 | static int nFlowParticlesOps = NumCmdSpecs(flowParticlesOps); |
---|
| 677 | |
---|
| 678 | /** |
---|
| 679 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
| 680 | * object. |
---|
| 681 | * |
---|
| 682 | * Side effects: See the user documentation. |
---|
| 683 | * |
---|
| 684 | * $flow particles oper $name |
---|
| 685 | * |
---|
| 686 | * \return A standard Tcl result. |
---|
| 687 | */ |
---|
| 688 | static int |
---|
| 689 | FlowParticlesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 690 | Tcl_Obj *const *objv) |
---|
| 691 | { |
---|
| 692 | Tcl_ObjCmdProc *proc; |
---|
| 693 | proc = Rappture::GetOpFromObj(interp, nFlowParticlesOps, flowParticlesOps, |
---|
| 694 | Rappture::CMDSPEC_ARG2, objc, objv, 0); |
---|
| 695 | if (proc == NULL) { |
---|
| 696 | return TCL_ERROR; |
---|
| 697 | } |
---|
| 698 | Flow *flow = (Flow *)clientData; |
---|
| 699 | Tcl_Preserve(flow); |
---|
| 700 | int result; |
---|
| 701 | result = (*proc) (clientData, interp, objc, objv); |
---|
| 702 | Tcl_Release(flow); |
---|
| 703 | return result; |
---|
| 704 | } |
---|
| 705 | |
---|
| 706 | static int |
---|
| 707 | FlowBoxAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 708 | Tcl_Obj *const *objv) |
---|
| 709 | { |
---|
| 710 | Flow *flow = (Flow *)clientData; |
---|
| 711 | const char *boxName = Tcl_GetString(objv[3]); |
---|
| 712 | FlowBox *box = flow->createBox(boxName); |
---|
| 713 | if (box == NULL) { |
---|
| 714 | Tcl_AppendResult(interp, "Flow box \"", boxName, |
---|
| 715 | "\" already exists or could not be created", |
---|
| 716 | (char*)NULL); |
---|
| 717 | return TCL_ERROR; |
---|
| 718 | } |
---|
| 719 | if (box->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 720 | flow->deleteBox(boxName); |
---|
| 721 | return TCL_ERROR; |
---|
| 722 | } |
---|
| 723 | NanoVis::eventuallyRedraw(); |
---|
| 724 | Tcl_SetObjResult(interp, objv[3]); |
---|
| 725 | return TCL_OK; |
---|
| 726 | } |
---|
| 727 | |
---|
| 728 | static int |
---|
| 729 | FlowBoxConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 730 | Tcl_Obj *const *objv) |
---|
| 731 | { |
---|
| 732 | Flow *flow = (Flow *)clientData; |
---|
| 733 | const char *boxName = Tcl_GetString(objv[3]); |
---|
| 734 | FlowBox *box = flow->getBox(boxName); |
---|
| 735 | if (box == NULL) { |
---|
| 736 | Tcl_AppendResult(interp, "Flow box \"", boxName, "\" not found", |
---|
| 737 | (char*)NULL); |
---|
| 738 | return TCL_ERROR; |
---|
| 739 | } |
---|
| 740 | if (box->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 741 | return TCL_ERROR; |
---|
| 742 | } |
---|
| 743 | NanoVis::eventuallyRedraw(); |
---|
| 744 | return TCL_OK; |
---|
| 745 | } |
---|
| 746 | |
---|
| 747 | static int |
---|
| 748 | FlowBoxDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 749 | Tcl_Obj *const *objv) |
---|
| 750 | { |
---|
| 751 | Flow *flow = (Flow *)clientData; |
---|
| 752 | for (int i = 3; i < objc; i++) { |
---|
| 753 | flow->deleteBox(Tcl_GetString(objv[i])); |
---|
| 754 | } |
---|
| 755 | NanoVis::eventuallyRedraw(); |
---|
| 756 | return TCL_OK; |
---|
| 757 | } |
---|
| 758 | |
---|
| 759 | static int |
---|
| 760 | FlowBoxNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 761 | Tcl_Obj *const *objv) |
---|
| 762 | { |
---|
| 763 | Flow *flow = (Flow *)clientData; |
---|
| 764 | Tcl_Obj *listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
| 765 | std::vector<std::string> names; |
---|
| 766 | flow->getBoxNames(names); |
---|
| 767 | for (std::vector<std::string>::iterator itr = names.begin(); |
---|
| 768 | itr != names.end(); ++itr) { |
---|
| 769 | Tcl_Obj *objPtr = Tcl_NewStringObj(itr->c_str(), -1); |
---|
| 770 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
| 771 | } |
---|
| 772 | Tcl_SetObjResult(interp, listObjPtr); |
---|
| 773 | return TCL_OK; |
---|
| 774 | } |
---|
| 775 | |
---|
| 776 | static Rappture::CmdSpec flowBoxOps[] = { |
---|
| 777 | {"add", 1, FlowBoxAddOp, 4, 0, "name ?switches?",}, |
---|
| 778 | {"configure", 1, FlowBoxConfigureOp, 4, 0, "name ?switches?",}, |
---|
| 779 | {"delete", 1, FlowBoxDeleteOp, 4, 0, "name ?name...?"}, |
---|
| 780 | {"names", 1, FlowBoxNamesOp, 3, 3, ""}, |
---|
| 781 | }; |
---|
| 782 | |
---|
| 783 | static int nFlowBoxOps = NumCmdSpecs(flowBoxOps); |
---|
| 784 | |
---|
| 785 | /** |
---|
| 786 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
| 787 | * object. |
---|
| 788 | * |
---|
| 789 | * Side effects: See the user documentation. |
---|
| 790 | * |
---|
| 791 | * \return A standard Tcl result. |
---|
| 792 | */ |
---|
| 793 | static int |
---|
| 794 | FlowBoxOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 795 | Tcl_Obj *const *objv) |
---|
| 796 | { |
---|
| 797 | Tcl_ObjCmdProc *proc; |
---|
| 798 | proc = Rappture::GetOpFromObj(interp, nFlowBoxOps, flowBoxOps, |
---|
| 799 | Rappture::CMDSPEC_ARG2, objc, objv, 0); |
---|
| 800 | if (proc == NULL) { |
---|
| 801 | return TCL_ERROR; |
---|
| 802 | } |
---|
| 803 | Flow *flow = (Flow *)clientData; |
---|
| 804 | Tcl_Preserve(flow); |
---|
| 805 | int result; |
---|
| 806 | result = (*proc) (clientData, interp, objc, objv); |
---|
| 807 | Tcl_Release(flow); |
---|
| 808 | return result; |
---|
| 809 | } |
---|
| 810 | |
---|
| 811 | /* |
---|
| 812 | * CLIENT COMMAND: |
---|
| 813 | * $flow legend <width> <height> |
---|
| 814 | * |
---|
| 815 | * Clients use this to generate a legend image for the specified |
---|
| 816 | * transfer function. The legend image is a color gradient from 0 |
---|
| 817 | * to one, drawn in the given transfer function. The resulting image |
---|
| 818 | * is returned in the size <width> x <height>. |
---|
| 819 | */ |
---|
| 820 | static int |
---|
| 821 | FlowLegendOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 822 | Tcl_Obj *const *objv) |
---|
| 823 | { |
---|
| 824 | Flow *flow = (Flow *)clientData; |
---|
| 825 | |
---|
| 826 | const char *string = Tcl_GetString(objv[1]); |
---|
| 827 | TransferFunction *tf; |
---|
| 828 | tf = flow->getTransferFunction(); |
---|
| 829 | if (tf == NULL) { |
---|
| 830 | Tcl_AppendResult(interp, "unknown transfer function \"", string, "\"", |
---|
| 831 | (char*)NULL); |
---|
| 832 | return TCL_ERROR; |
---|
| 833 | } |
---|
| 834 | const char *label; |
---|
| 835 | label = Tcl_GetString(objv[0]); |
---|
| 836 | int w, h; |
---|
| 837 | if ((Tcl_GetIntFromObj(interp, objv[2], &w) != TCL_OK) || |
---|
| 838 | (Tcl_GetIntFromObj(interp, objv[3], &h) != TCL_OK)) { |
---|
| 839 | return TCL_ERROR; |
---|
| 840 | } |
---|
| 841 | if (Flow::updatePending) { |
---|
| 842 | NanoVis::mapFlows(); |
---|
| 843 | } |
---|
| 844 | NanoVis::renderLegend(tf, Flow::magMin, Flow::magMax, w, h, label); |
---|
| 845 | return TCL_OK; |
---|
| 846 | } |
---|
| 847 | |
---|
| 848 | static Rappture::CmdSpec flowInstOps[] = { |
---|
| 849 | {"box", 1, FlowBoxOp, 2, 0, "oper ?args?"}, |
---|
| 850 | {"configure", 1, FlowConfigureOp, 2, 0, "?switches?"}, |
---|
| 851 | {"data", 1, FlowDataOp, 2, 0, "oper ?args?"}, |
---|
| 852 | {"legend", 1, FlowLegendOp, 4, 4, "w h"}, |
---|
| 853 | {"particles", 1, FlowParticlesOp, 2, 0, "oper ?args?"} |
---|
| 854 | }; |
---|
| 855 | static int nFlowInstOps = NumCmdSpecs(flowInstOps); |
---|
| 856 | |
---|
| 857 | /** |
---|
| 858 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
| 859 | * object. |
---|
| 860 | * |
---|
| 861 | * Side effects: See the user documentation. |
---|
| 862 | * |
---|
| 863 | * \return A standard Tcl result. |
---|
| 864 | */ |
---|
| 865 | int |
---|
| 866 | nv::FlowInstObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 867 | Tcl_Obj *const *objv) |
---|
| 868 | { |
---|
| 869 | Tcl_ObjCmdProc *proc; |
---|
| 870 | proc = Rappture::GetOpFromObj(interp, nFlowInstOps, flowInstOps, |
---|
| 871 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
---|
| 872 | if (proc == NULL) { |
---|
| 873 | return TCL_ERROR; |
---|
| 874 | } |
---|
| 875 | assert(CheckGL(AT)); |
---|
| 876 | Flow *flow = (Flow *)clientData; |
---|
| 877 | Tcl_Preserve(flow); |
---|
| 878 | int result = (*proc) (clientData, interp, objc, objv); |
---|
| 879 | Tcl_Release(flow); |
---|
| 880 | return result; |
---|
| 881 | } |
---|
| 882 | |
---|
| 883 | /** |
---|
| 884 | * \brief Deletes the command associated with the flow |
---|
| 885 | * |
---|
| 886 | * This is called only when the command associated with the flow is destroyed. |
---|
| 887 | */ |
---|
| 888 | void |
---|
| 889 | nv::FlowInstDeleteProc(ClientData clientData) |
---|
| 890 | { |
---|
| 891 | Flow *flow = (Flow *)clientData; |
---|
| 892 | NanoVis::deleteFlow(flow->name()); |
---|
| 893 | } |
---|
| 894 | |
---|
| 895 | static int |
---|
| 896 | FlowAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 897 | Tcl_Obj *const *objv) |
---|
| 898 | { |
---|
| 899 | const char *name = Tcl_GetString(objv[2]); |
---|
| 900 | Tcl_CmdInfo cmdInfo; |
---|
| 901 | if (Tcl_GetCommandInfo(interp, name, &cmdInfo)) { |
---|
| 902 | Tcl_AppendResult(interp, "an another command \"", name, |
---|
| 903 | "\" already exists.", (char *)NULL); |
---|
| 904 | return TCL_ERROR; |
---|
| 905 | } |
---|
| 906 | Flow *flow = NanoVis::createFlow(interp, name); |
---|
| 907 | if (flow == NULL) { |
---|
| 908 | Tcl_AppendResult(interp, "Flow \"", name, "\" already exists", |
---|
| 909 | (char*)NULL); |
---|
| 910 | return TCL_ERROR; |
---|
| 911 | } |
---|
| 912 | if (flow->parseSwitches(interp, objc - 3, objv + 3) != TCL_OK) { |
---|
| 913 | Tcl_DeleteCommand(interp, flow->name()); |
---|
| 914 | return TCL_ERROR; |
---|
| 915 | } |
---|
| 916 | Tcl_SetObjResult(interp, objv[2]); |
---|
| 917 | NanoVis::eventuallyRedraw(); |
---|
| 918 | return TCL_OK; |
---|
| 919 | } |
---|
| 920 | |
---|
| 921 | static int |
---|
| 922 | FlowDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 923 | Tcl_Obj *const *objv) |
---|
| 924 | { |
---|
| 925 | for (int i = 2; i < objc; i++) { |
---|
| 926 | Flow *flow = NanoVis::getFlow(Tcl_GetString(objv[i])); |
---|
| 927 | if (flow != NULL) { |
---|
| 928 | Tcl_DeleteCommandFromToken(interp, flow->getCommandToken()); |
---|
| 929 | } |
---|
| 930 | } |
---|
| 931 | Flow::updatePending = true; |
---|
| 932 | NanoVis::eventuallyRedraw(); |
---|
| 933 | return TCL_OK; |
---|
| 934 | } |
---|
| 935 | |
---|
| 936 | static int |
---|
| 937 | FlowExistsOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 938 | Tcl_Obj *const *objv) |
---|
| 939 | { |
---|
| 940 | bool value = false; |
---|
| 941 | Flow *flow = NanoVis::getFlow(Tcl_GetString(objv[2])); |
---|
| 942 | if (flow != NULL) { |
---|
| 943 | value = true; |
---|
| 944 | } |
---|
| 945 | Tcl_SetBooleanObj(Tcl_GetObjResult(interp), (int)value); |
---|
| 946 | return TCL_OK; |
---|
| 947 | } |
---|
| 948 | |
---|
| 949 | /** |
---|
| 950 | * \brief flow goto number |
---|
| 951 | */ |
---|
| 952 | static int |
---|
| 953 | FlowGotoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 954 | Tcl_Obj *const *objv) |
---|
| 955 | { |
---|
| 956 | int nSteps; |
---|
| 957 | if (Tcl_GetIntFromObj(interp, objv[2], &nSteps) != TCL_OK) { |
---|
| 958 | return TCL_ERROR; |
---|
| 959 | } |
---|
| 960 | if ((nSteps < 0) || (nSteps > SHRT_MAX)) { |
---|
| 961 | Tcl_AppendResult(interp, "flow goto: bad # of steps \"", |
---|
| 962 | Tcl_GetString(objv[2]), "\"", (char *)NULL); |
---|
| 963 | return TCL_ERROR; |
---|
| 964 | } |
---|
| 965 | NanoVis::resetFlows(); |
---|
| 966 | if (Flow::updatePending) { |
---|
| 967 | NanoVis::mapFlows(); |
---|
| 968 | } |
---|
| 969 | for (int i = 0; i < nSteps; i++) { |
---|
| 970 | NanoVis::licRenderer->convolve(); |
---|
| 971 | NanoVis::advectFlows(); |
---|
| 972 | } |
---|
| 973 | NanoVis::eventuallyRedraw(); |
---|
| 974 | return TCL_OK; |
---|
| 975 | } |
---|
| 976 | |
---|
| 977 | static int |
---|
| 978 | FlowNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 979 | Tcl_Obj *const *objv) |
---|
| 980 | { |
---|
| 981 | Tcl_Obj *listObjPtr; |
---|
| 982 | listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
| 983 | for (NanoVis::FlowHashmap::iterator itr = NanoVis::flowTable.begin(); |
---|
| 984 | itr != NanoVis::flowTable.end(); ++itr) { |
---|
| 985 | Flow *flow = itr->second; |
---|
| 986 | Tcl_Obj *objPtr = Tcl_NewStringObj(flow->name(), -1); |
---|
| 987 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
| 988 | } |
---|
| 989 | Tcl_SetObjResult(interp, listObjPtr); |
---|
| 990 | return TCL_OK; |
---|
| 991 | } |
---|
| 992 | |
---|
| 993 | static int |
---|
| 994 | FlowNextOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 995 | Tcl_Obj *const *objv) |
---|
| 996 | { |
---|
| 997 | assert(NanoVis::licRenderer != NULL); |
---|
| 998 | if (Flow::updatePending) { |
---|
| 999 | NanoVis::mapFlows(); |
---|
| 1000 | } |
---|
| 1001 | NanoVis::licRenderer->convolve(); |
---|
| 1002 | NanoVis::advectFlows(); |
---|
| 1003 | NanoVis::eventuallyRedraw(); |
---|
| 1004 | return TCL_OK; |
---|
| 1005 | } |
---|
| 1006 | |
---|
| 1007 | static int |
---|
| 1008 | FlowResetOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 1009 | Tcl_Obj *const *objv) |
---|
| 1010 | { |
---|
| 1011 | NanoVis::resetFlows(); |
---|
| 1012 | return TCL_OK; |
---|
| 1013 | } |
---|
| 1014 | |
---|
| 1015 | #ifdef HAVE_FFMPEG |
---|
| 1016 | |
---|
| 1017 | /** |
---|
| 1018 | * \brief Convert a Tcl_Obj representing the video format into its |
---|
| 1019 | * integer id. |
---|
| 1020 | * |
---|
| 1021 | * \param clientData Not used |
---|
| 1022 | * \param interp Interpreter to send results back to |
---|
| 1023 | * \param switchName Not used |
---|
| 1024 | * \param objPtr String representation |
---|
| 1025 | * \param record Structure record |
---|
| 1026 | * \param offset Not used |
---|
| 1027 | * \param flags Not used |
---|
| 1028 | * |
---|
| 1029 | * \return The return value is a standard Tcl result. |
---|
| 1030 | */ |
---|
| 1031 | static int |
---|
| 1032 | VideoFormatSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 1033 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 1034 | char *record, int offset, int flags) |
---|
| 1035 | { |
---|
| 1036 | Tcl_Obj **formatObjPtr = (Tcl_Obj **)(record + offset); |
---|
| 1037 | Tcl_Obj *fmtObjPtr; |
---|
| 1038 | const char *string; |
---|
| 1039 | char c; |
---|
| 1040 | int length; |
---|
| 1041 | |
---|
| 1042 | string = Tcl_GetStringFromObj(objPtr, &length); |
---|
| 1043 | c = string[0]; |
---|
| 1044 | if ((c == 'm') && (length > 1) && |
---|
| 1045 | (strncmp(string, "mpeg", length) == 0)) { |
---|
| 1046 | fmtObjPtr = Tcl_NewStringObj("mpeg1video", 10); |
---|
| 1047 | } else if ((c == 't') && (strncmp(string, "theora", length) == 0)) { |
---|
| 1048 | fmtObjPtr = Tcl_NewStringObj("theora", 6); |
---|
| 1049 | } else if ((c == 'm') && (length > 1) && |
---|
| 1050 | (strncmp(string, "mov", length) == 0)) { |
---|
| 1051 | fmtObjPtr = Tcl_NewStringObj("mov", 3); |
---|
| 1052 | } else { |
---|
| 1053 | Tcl_AppendResult(interp, "bad video format \"", string, |
---|
| 1054 | "\": should be mpeg, theora, or mov", (char*)NULL); |
---|
| 1055 | return TCL_ERROR; |
---|
| 1056 | } |
---|
| 1057 | if (*formatObjPtr != NULL) { |
---|
| 1058 | Tcl_DecrRefCount(*formatObjPtr); |
---|
| 1059 | } |
---|
| 1060 | Tcl_IncrRefCount(fmtObjPtr); |
---|
| 1061 | *formatObjPtr = fmtObjPtr; |
---|
| 1062 | return TCL_OK; |
---|
| 1063 | } |
---|
| 1064 | |
---|
| 1065 | struct FlowVideoSwitches { |
---|
| 1066 | float frameRate; /**< Frame rate */ |
---|
| 1067 | int bitRate; /**< Video bitrate */ |
---|
| 1068 | int width, height; /**< Dimensions of video frame. */ |
---|
| 1069 | int numFrames; |
---|
| 1070 | Tcl_Obj *formatObjPtr; |
---|
| 1071 | }; |
---|
| 1072 | |
---|
| 1073 | static Rappture::SwitchParseProc VideoFormatSwitchProc; |
---|
| 1074 | static Rappture::SwitchCustom videoFormatSwitch = { |
---|
| 1075 | VideoFormatSwitchProc, NULL, 0, |
---|
| 1076 | }; |
---|
| 1077 | |
---|
| 1078 | static Rappture::SwitchSpec flowVideoSwitches[] = { |
---|
| 1079 | {Rappture::SWITCH_INT, "-bitrate", "value", |
---|
| 1080 | offsetof(FlowVideoSwitches, bitRate), 0}, |
---|
| 1081 | {Rappture::SWITCH_CUSTOM, "-format", "string", |
---|
| 1082 | offsetof(FlowVideoSwitches, formatObjPtr), 0, 0, &videoFormatSwitch}, |
---|
| 1083 | {Rappture::SWITCH_FLOAT, "-framerate", "value", |
---|
| 1084 | offsetof(FlowVideoSwitches, frameRate), 0}, |
---|
| 1085 | {Rappture::SWITCH_INT, "-height", "integer", |
---|
| 1086 | offsetof(FlowVideoSwitches, height), 0}, |
---|
| 1087 | {Rappture::SWITCH_INT, "-numframes", "count", |
---|
| 1088 | offsetof(FlowVideoSwitches, numFrames), 0}, |
---|
| 1089 | {Rappture::SWITCH_INT, "-width", "integer", |
---|
| 1090 | offsetof(FlowVideoSwitches, width), 0}, |
---|
| 1091 | {Rappture::SWITCH_END} |
---|
| 1092 | }; |
---|
| 1093 | |
---|
| 1094 | static bool |
---|
| 1095 | MakeImageFiles(char *tmpFileName, |
---|
| 1096 | int width, int height, int numFrames, |
---|
| 1097 | bool *cancelPtr) |
---|
| 1098 | { |
---|
| 1099 | struct pollfd pollResults; |
---|
| 1100 | pollResults.fd = fileno(nv::g_fIn); |
---|
| 1101 | pollResults.events = POLLIN; |
---|
| 1102 | #define PENDING_TIMEOUT 10 /* milliseconds. */ |
---|
| 1103 | int timeout = PENDING_TIMEOUT; |
---|
| 1104 | |
---|
| 1105 | int oldWidth, oldHeight; |
---|
| 1106 | oldWidth = NanoVis::winWidth; |
---|
| 1107 | oldHeight = NanoVis::winHeight; |
---|
| 1108 | |
---|
| 1109 | if (width != oldWidth || |
---|
| 1110 | height != oldHeight) { |
---|
| 1111 | // Resize to the requested size. |
---|
| 1112 | NanoVis::resizeOffscreenBuffer(width, height); |
---|
| 1113 | } |
---|
| 1114 | NanoVis::resetFlows(); |
---|
| 1115 | *cancelPtr = false; |
---|
| 1116 | bool result = true; |
---|
| 1117 | size_t length = strlen(tmpFileName); |
---|
| 1118 | for (int i = 1; i <= numFrames; i++) { |
---|
| 1119 | if (((i & 0xF) == 0) && (poll(&pollResults, 1, timeout) > 0)) { |
---|
| 1120 | /* If there's another command on stdin, that means the client is |
---|
| 1121 | * trying to cancel this operation. */ |
---|
| 1122 | *cancelPtr = true; |
---|
| 1123 | break; |
---|
| 1124 | } |
---|
| 1125 | |
---|
| 1126 | NanoVis::licRenderer->convolve(); |
---|
| 1127 | NanoVis::advectFlows(); |
---|
| 1128 | |
---|
| 1129 | int fboOrig; |
---|
| 1130 | glGetIntegerv(GL_FRAMEBUFFER_BINDING_EXT, &fboOrig); |
---|
| 1131 | |
---|
| 1132 | NanoVis::bindOffscreenBuffer(); |
---|
| 1133 | NanoVis::render(); |
---|
| 1134 | NanoVis::readScreen(); |
---|
| 1135 | |
---|
| 1136 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboOrig); |
---|
| 1137 | |
---|
| 1138 | sprintf(tmpFileName + length, "/image%d.ppm", i); |
---|
| 1139 | result = nv::writePPMFile(tmpFileName, NanoVis::screenBuffer, |
---|
| 1140 | width, height); |
---|
| 1141 | if (!result) { |
---|
| 1142 | break; |
---|
| 1143 | } |
---|
| 1144 | } |
---|
| 1145 | if (width != oldWidth || |
---|
| 1146 | height != oldHeight) { |
---|
| 1147 | NanoVis::resizeOffscreenBuffer(oldWidth, oldHeight); |
---|
| 1148 | } |
---|
| 1149 | tmpFileName[length] = '\0'; |
---|
| 1150 | NanoVis::resetFlows(); |
---|
| 1151 | return result; |
---|
| 1152 | } |
---|
| 1153 | |
---|
| 1154 | static int |
---|
| 1155 | MakeMovie(Tcl_Interp *interp, char *tmpFileName, const char *token, |
---|
| 1156 | FlowVideoSwitches *switchesPtr) |
---|
| 1157 | { |
---|
| 1158 | #ifndef FFMPEG |
---|
| 1159 | # define FFMPEG "/usr/bin/ffmpeg" |
---|
| 1160 | #endif |
---|
| 1161 | /* Generate the movie from the frame images by exec-ing ffmpeg */ |
---|
| 1162 | /* The ffmpeg command is |
---|
| 1163 | * ffmpeg -f image2 -i /var/tmp/xxxxx/image%d.ppm \ |
---|
| 1164 | * -b bitrate -f framerate /var/tmp/xxxxx/movie.mpeg |
---|
| 1165 | */ |
---|
| 1166 | char cmd[BUFSIZ]; |
---|
| 1167 | sprintf(cmd, "%s -f image2 -i %s/image%%d.ppm -f %s -b %d -r %f -", |
---|
| 1168 | FFMPEG, tmpFileName, Tcl_GetString(switchesPtr->formatObjPtr), |
---|
| 1169 | switchesPtr->bitRate, switchesPtr->frameRate); |
---|
| 1170 | TRACE("Enter: %s", cmd); |
---|
| 1171 | FILE *f; |
---|
| 1172 | f = popen(cmd, "r"); |
---|
| 1173 | if (f == NULL) { |
---|
| 1174 | Tcl_AppendResult(interp, "can't run ffmpeg: ", |
---|
| 1175 | Tcl_PosixError(interp), (char *)NULL); |
---|
| 1176 | return TCL_ERROR; |
---|
| 1177 | } |
---|
| 1178 | Rappture::Buffer data; |
---|
| 1179 | size_t total = 0; |
---|
| 1180 | for (;;) { |
---|
| 1181 | ssize_t numRead; |
---|
| 1182 | char buffer[BUFSIZ]; |
---|
| 1183 | |
---|
| 1184 | numRead = fread(buffer, sizeof(unsigned char), BUFSIZ, f); |
---|
| 1185 | total += numRead; |
---|
| 1186 | if (numRead == 0) { // EOF |
---|
| 1187 | break; |
---|
| 1188 | } |
---|
| 1189 | if (numRead < 0) { // Error |
---|
| 1190 | ERROR("Can't read movie data: %s", |
---|
| 1191 | Tcl_PosixError(interp)); |
---|
| 1192 | Tcl_AppendResult(interp, "can't read movie data: ", |
---|
| 1193 | Tcl_PosixError(interp), (char *)NULL); |
---|
| 1194 | return TCL_ERROR; |
---|
| 1195 | } |
---|
| 1196 | if (!data.append(buffer, numRead)) { |
---|
| 1197 | ERROR("Can't append movie data to buffer %d bytes", |
---|
| 1198 | numRead); |
---|
| 1199 | Tcl_AppendResult(interp, "can't append movie data to buffer", |
---|
| 1200 | (char *)NULL); |
---|
| 1201 | return TCL_ERROR; |
---|
| 1202 | } |
---|
| 1203 | } |
---|
| 1204 | if (data.size() == 0) { |
---|
| 1205 | ERROR("ffmpeg returned 0 bytes"); |
---|
| 1206 | } |
---|
| 1207 | // Send zero length to client so it can deal with error |
---|
| 1208 | sprintf(cmd,"nv>image -type movie -token \"%s\" -bytes %lu\n", |
---|
| 1209 | token, (unsigned long)data.size()); |
---|
| 1210 | nv::sendDataToClient(cmd, data.bytes(), data.size()); |
---|
| 1211 | return TCL_OK; |
---|
| 1212 | } |
---|
| 1213 | |
---|
| 1214 | static int |
---|
| 1215 | FlowVideoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 1216 | Tcl_Obj *const *objv) |
---|
| 1217 | { |
---|
| 1218 | FlowVideoSwitches switches; |
---|
| 1219 | const char *token; |
---|
| 1220 | |
---|
| 1221 | token = Tcl_GetString(objv[2]); |
---|
| 1222 | switches.frameRate = 25.0f; // Default frame rate 25 fps |
---|
| 1223 | switches.bitRate = 6000000; // Default video bit rate. |
---|
| 1224 | switches.width = NanoVis::winWidth; |
---|
| 1225 | switches.height = NanoVis::winHeight; |
---|
| 1226 | switches.numFrames = 100; |
---|
| 1227 | switches.formatObjPtr = Tcl_NewStringObj("mpeg1video", 10); |
---|
| 1228 | Tcl_IncrRefCount(switches.formatObjPtr); |
---|
| 1229 | if (Rappture::ParseSwitches(interp, flowVideoSwitches, |
---|
| 1230 | objc - 3, objv + 3, &switches, SWITCH_DEFAULTS) < 0) { |
---|
| 1231 | return TCL_ERROR; |
---|
| 1232 | } |
---|
| 1233 | if ((switches.width < 0) || (switches.width > SHRT_MAX) || |
---|
| 1234 | (switches.height < 0) || (switches.height > SHRT_MAX)) { |
---|
| 1235 | Tcl_AppendResult(interp, "bad dimensions for video", (char *)NULL); |
---|
| 1236 | return TCL_ERROR; |
---|
| 1237 | } |
---|
| 1238 | if ((switches.frameRate < 0.0f) || (switches.frameRate > 30.0f)) { |
---|
| 1239 | Tcl_AppendResult(interp, "bad frame rate.", (char *)NULL); |
---|
| 1240 | return TCL_ERROR; |
---|
| 1241 | } |
---|
| 1242 | if (switches.bitRate < 0) { |
---|
| 1243 | Tcl_AppendResult(interp, "bad bit rate.", (char *)NULL); |
---|
| 1244 | return TCL_ERROR; |
---|
| 1245 | } |
---|
| 1246 | if (NanoVis::licRenderer == NULL) { |
---|
| 1247 | Tcl_AppendResult(interp, "no lic renderer.", (char *)NULL); |
---|
| 1248 | return TCL_ERROR; |
---|
| 1249 | } |
---|
| 1250 | TRACE("FLOW started"); |
---|
| 1251 | |
---|
| 1252 | char *tmpFileName; |
---|
| 1253 | char nameTemplate[200]; |
---|
| 1254 | strcpy(nameTemplate,"/var/tmp/flowXXXXXX"); |
---|
| 1255 | tmpFileName = mkdtemp(nameTemplate); |
---|
| 1256 | int result = TCL_OK; |
---|
| 1257 | if (tmpFileName == NULL) { |
---|
| 1258 | Tcl_AppendResult(interp, "can't create temporary directory \"", |
---|
| 1259 | nameTemplate, "\" for frame image files: ", |
---|
| 1260 | Tcl_PosixError(interp), (char *)NULL); |
---|
| 1261 | return TCL_ERROR; |
---|
| 1262 | } |
---|
| 1263 | size_t length = strlen(tmpFileName); |
---|
| 1264 | bool canceled = false; |
---|
| 1265 | if (MakeImageFiles(tmpFileName, |
---|
| 1266 | switches.width, switches.height, switches.numFrames, |
---|
| 1267 | &canceled)) { |
---|
| 1268 | result = TCL_OK; |
---|
| 1269 | } else { |
---|
| 1270 | result = TCL_ERROR; |
---|
| 1271 | } |
---|
| 1272 | if ((result == TCL_OK) && (!canceled)) { |
---|
| 1273 | result = MakeMovie(interp, tmpFileName, token, &switches); |
---|
| 1274 | } |
---|
| 1275 | for (int i = 1; i <= switches.numFrames; i++) { |
---|
| 1276 | sprintf(tmpFileName + length, "/image%d.ppm", i); |
---|
| 1277 | unlink(tmpFileName); |
---|
| 1278 | } |
---|
| 1279 | tmpFileName[length] = '\0'; |
---|
| 1280 | rmdir(tmpFileName); |
---|
| 1281 | Rappture::FreeSwitches(flowVideoSwitches, &switches, 0); |
---|
| 1282 | return result; |
---|
| 1283 | } |
---|
| 1284 | #else |
---|
| 1285 | /** |
---|
| 1286 | * Not implemented |
---|
| 1287 | */ |
---|
| 1288 | static int |
---|
| 1289 | FlowVideoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 1290 | Tcl_Obj *const *objv) |
---|
| 1291 | { |
---|
| 1292 | return TCL_OK; |
---|
| 1293 | } |
---|
| 1294 | #endif /* HAVE_FFMPEG */ |
---|
| 1295 | |
---|
| 1296 | static Rappture::CmdSpec flowCmdOps[] = { |
---|
| 1297 | {"add", 1, FlowAddOp, 3, 0, "name ?option value...?",}, |
---|
| 1298 | {"delete", 1, FlowDeleteOp, 3, 0, "name ?name...?",}, |
---|
| 1299 | {"exists", 1, FlowExistsOp, 3, 3, "name",}, |
---|
| 1300 | {"goto", 1, FlowGotoOp, 3, 3, "nSteps",}, |
---|
| 1301 | {"names", 1, FlowNamesOp, 2, 2, "",}, |
---|
| 1302 | {"next", 2, FlowNextOp, 2, 2, "",}, |
---|
| 1303 | {"reset", 1, FlowResetOp, 2, 2, "",}, |
---|
| 1304 | {"video", 1, FlowVideoOp, 3, 0, "token ?switches...?",}, |
---|
| 1305 | }; |
---|
| 1306 | static int nFlowCmdOps = NumCmdSpecs(flowCmdOps); |
---|
| 1307 | |
---|
| 1308 | static int |
---|
| 1309 | FlowCmdProc(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 1310 | Tcl_Obj *const *objv) |
---|
| 1311 | { |
---|
| 1312 | Tcl_ObjCmdProc *proc; |
---|
| 1313 | |
---|
| 1314 | proc = Rappture::GetOpFromObj(interp, nFlowCmdOps, flowCmdOps, |
---|
| 1315 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
---|
| 1316 | if (proc == NULL) { |
---|
| 1317 | return TCL_ERROR; |
---|
| 1318 | } |
---|
| 1319 | return (*proc) (clientData, interp, objc, objv); |
---|
| 1320 | } |
---|
| 1321 | |
---|
| 1322 | /** |
---|
| 1323 | *\brief This procedure is invoked to initialize the "flow" command. |
---|
| 1324 | * |
---|
| 1325 | * Side effects: |
---|
| 1326 | * Creates the new command and adds a new entry into a global Tcl |
---|
| 1327 | * associative array. |
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| 1328 | */ |
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| 1329 | void |
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| 1330 | nv::FlowCmdInitProc(Tcl_Interp *interp, ClientData clientData) |
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| 1331 | { |
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| 1332 | Tcl_CreateObjCommand(interp, "flow", FlowCmdProc, clientData, NULL); |
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| 1333 | } |
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