[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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[4904] | 7 | #include <errno.h> |
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[3559] | 8 | #define _OPEN_SYS |
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| 9 | #include <fcntl.h> |
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| 10 | #define _XOPEN_SOURCE_EXTENDED 1 |
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| 11 | #include <sys/uio.h> |
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| 12 | #include <sys/stat.h> |
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[1429] | 13 | #include <stdlib.h> |
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| 14 | #include <stddef.h> |
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| 15 | #include <limits.h> |
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[1899] | 16 | #include <stdint.h> |
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[3559] | 17 | #include <unistd.h> |
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[1515] | 18 | #include <poll.h> |
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[4612] | 19 | |
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[4904] | 20 | #include <sstream> |
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| 21 | |
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[1429] | 22 | #include <tcl.h> |
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[2831] | 23 | |
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[4884] | 24 | #include <RpBuffer.h> |
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[2831] | 25 | |
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[3492] | 26 | #include <vrmath/Vector3f.h> |
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| 27 | |
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[2831] | 28 | #include "nvconf.h" |
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| 29 | |
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[4874] | 30 | #include "nanovisServer.h" |
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[1429] | 31 | #include "nanovis.h" |
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[3567] | 32 | #include "CmdProc.h" |
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[4612] | 33 | #include "Command.h" |
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[2831] | 34 | #include "FlowCmd.h" |
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[3567] | 35 | #include "FlowTypes.h" |
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[4612] | 36 | #include "Flow.h" |
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[3567] | 37 | #include "FlowBox.h" |
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| 38 | #include "FlowParticles.h" |
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[2831] | 39 | #include "Switch.h" |
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| 40 | #include "TransferFunction.h" |
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[4889] | 41 | #include "LIC.h" |
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[1429] | 42 | #include "Unirect.h" |
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[2831] | 43 | #include "VelocityArrowsSlice.h" |
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[2877] | 44 | #include "Volume.h" |
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[4612] | 45 | #include "Trace.h" |
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[1429] | 46 | |
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[4874] | 47 | using namespace nv; |
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[3492] | 48 | using namespace vrmath; |
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| 49 | |
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[4893] | 50 | static SwitchParseProc AxisSwitchProc; |
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| 51 | static SwitchCustom axisSwitch = { |
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[1429] | 52 | AxisSwitchProc, NULL, 0, |
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| 53 | }; |
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| 54 | |
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[4893] | 55 | static SwitchParseProc ColorSwitchProc; |
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| 56 | static SwitchCustom colorSwitch = { |
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[1429] | 57 | ColorSwitchProc, NULL, 0, |
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| 58 | }; |
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| 59 | |
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[4893] | 60 | static SwitchParseProc PointSwitchProc; |
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| 61 | static SwitchCustom pointSwitch = { |
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[1429] | 62 | PointSwitchProc, NULL, 0, |
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| 63 | }; |
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| 64 | |
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[4893] | 65 | static SwitchParseProc PositionSwitchProc; |
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| 66 | static SwitchCustom positionSwitch = { |
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[1429] | 67 | PositionSwitchProc, NULL, 0, |
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| 68 | }; |
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| 69 | |
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[4893] | 70 | static SwitchParseProc TransferFunctionSwitchProc; |
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| 71 | static SwitchCustom transferFunctionSwitch = { |
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[1429] | 72 | TransferFunctionSwitchProc, NULL, 0, |
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| 73 | }; |
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| 74 | |
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[4893] | 75 | SwitchSpec Flow::_switches[] = { |
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| 76 | {SWITCH_FLOAT, "-ambient", "value", |
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[3362] | 77 | offsetof(FlowValues, ambient), 0}, |
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[4893] | 78 | {SWITCH_BOOLEAN, "-arrows", "boolean", |
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[2875] | 79 | offsetof(FlowValues, showArrows), 0}, |
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[4893] | 80 | {SWITCH_CUSTOM, "-axis", "axis", |
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[2875] | 81 | offsetof(FlowValues, slicePos.axis), 0, 0, &axisSwitch}, |
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[4893] | 82 | {SWITCH_FLOAT, "-diffuse", "value", |
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[2875] | 83 | offsetof(FlowValues, diffuse), 0}, |
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[4893] | 84 | {SWITCH_BOOLEAN, "-hide", "boolean", |
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[2875] | 85 | offsetof(FlowValues, isHidden), 0}, |
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[4893] | 86 | {SWITCH_BOOLEAN, "-light2side", "boolean", |
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[3397] | 87 | offsetof(FlowValues, twoSidedLighting), 0}, |
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[4893] | 88 | {SWITCH_FLOAT, "-opacity", "value", |
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[2875] | 89 | offsetof(FlowValues, opacity), 0}, |
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[4893] | 90 | {SWITCH_BOOLEAN, "-outline", "boolean", |
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[2875] | 91 | offsetof(FlowValues, showOutline), 0}, |
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[4893] | 92 | {SWITCH_CUSTOM, "-position", "number", |
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[2875] | 93 | offsetof(FlowValues, slicePos), 0, 0, &positionSwitch}, |
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[4893] | 94 | {SWITCH_BOOLEAN, "-slice", "boolean", |
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[2875] | 95 | offsetof(FlowValues, sliceVisible), 0}, |
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[4893] | 96 | {SWITCH_FLOAT, "-specularExp", "value", |
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[3362] | 97 | offsetof(FlowValues, specularExp), 0}, |
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[4893] | 98 | {SWITCH_FLOAT, "-specularLevel", "value", |
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[2875] | 99 | offsetof(FlowValues, specular), 0}, |
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[4893] | 100 | {SWITCH_CUSTOM, "-transferfunction", "name", |
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[3567] | 101 | offsetof(FlowValues, transferFunction), 0, 0, &transferFunctionSwitch}, |
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[4893] | 102 | {SWITCH_BOOLEAN, "-volume", "boolean", |
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[2875] | 103 | offsetof(FlowValues, showVolume), 0}, |
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[4893] | 104 | {SWITCH_END} |
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[1429] | 105 | }; |
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| 106 | |
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[4893] | 107 | SwitchSpec FlowParticles::_switches[] = { |
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| 108 | {SWITCH_CUSTOM, "-axis", "axis", |
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[2875] | 109 | offsetof(FlowParticlesValues, position.axis), 0, 0, &axisSwitch}, |
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[4893] | 110 | {SWITCH_CUSTOM, "-color", "{r g b a}", |
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[2875] | 111 | offsetof(FlowParticlesValues, color), 0, 0, &colorSwitch}, |
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[4893] | 112 | {SWITCH_BOOLEAN, "-hide", "boolean", |
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[2875] | 113 | offsetof(FlowParticlesValues, isHidden), 0}, |
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[4893] | 114 | {SWITCH_CUSTOM, "-position", "number", |
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[2875] | 115 | offsetof(FlowParticlesValues, position), 0, 0, &positionSwitch}, |
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[4893] | 116 | {SWITCH_FLOAT, "-size", "float", |
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[2875] | 117 | offsetof(FlowParticlesValues, particleSize), 0}, |
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[4893] | 118 | {SWITCH_END} |
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[1429] | 119 | }; |
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| 120 | |
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[4893] | 121 | SwitchSpec FlowBox::_switches[] = { |
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| 122 | {SWITCH_CUSTOM, "-color", "{r g b a}", |
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[2875] | 123 | offsetof(FlowBoxValues, color), 0, 0, &colorSwitch}, |
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[4893] | 124 | {SWITCH_CUSTOM, "-corner1", "{x y z}", |
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[2875] | 125 | offsetof(FlowBoxValues, corner1), 0, 0, &pointSwitch}, |
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[4893] | 126 | {SWITCH_CUSTOM, "-corner2", "{x y z}", |
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[2875] | 127 | offsetof(FlowBoxValues, corner2), 0, 0, &pointSwitch}, |
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[4893] | 128 | {SWITCH_BOOLEAN, "-hide", "boolean", |
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[2875] | 129 | offsetof(FlowBoxValues, isHidden), 0}, |
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[4893] | 130 | {SWITCH_FLOAT, "-linewidth", "number", |
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[2875] | 131 | offsetof(FlowBoxValues, lineWidth), 0}, |
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[4893] | 132 | {SWITCH_END} |
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[1429] | 133 | }; |
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| 134 | |
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[2875] | 135 | /** |
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[1434] | 136 | * $flow data follows nbytes nComponents |
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[1431] | 137 | */ |
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[1429] | 138 | static int |
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| 139 | FlowDataFollowsOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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[2875] | 140 | Tcl_Obj *const *objv) |
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[1429] | 141 | { |
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[3564] | 142 | TRACE("Enter"); |
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| 143 | |
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[1429] | 144 | int nBytes; |
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| 145 | if (Tcl_GetIntFromObj(interp, objv[3], &nBytes) != TCL_OK) { |
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[3452] | 146 | ERROR("Bad nBytes \"%s\"", Tcl_GetString(objv[3])); |
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[1429] | 147 | return TCL_ERROR; |
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| 148 | } |
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| 149 | if (nBytes <= 0) { |
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[2875] | 150 | Tcl_AppendResult(interp, "bad # bytes request \"", |
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| 151 | Tcl_GetString(objv[3]), "\" for \"data follows\"", (char *)NULL); |
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[3452] | 152 | ERROR("Bad nbytes %d", nBytes); |
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[2875] | 153 | return TCL_ERROR; |
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[1429] | 154 | } |
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[1434] | 155 | int nComponents; |
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| 156 | if (Tcl_GetIntFromObj(interp, objv[4], &nComponents) != TCL_OK) { |
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[3452] | 157 | ERROR("Bad # of components \"%s\"", Tcl_GetString(objv[4])); |
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[1429] | 158 | return TCL_ERROR; |
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| 159 | } |
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[1434] | 160 | if (nComponents <= 0) { |
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[2875] | 161 | Tcl_AppendResult(interp, "bad # of components request \"", |
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| 162 | Tcl_GetString(objv[4]), "\" for \"data follows\"", (char *)NULL); |
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[3452] | 163 | ERROR("Bad # of components %d", nComponents); |
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[2875] | 164 | return TCL_ERROR; |
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[1431] | 165 | } |
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[4830] | 166 | Rappture::Buffer buf(nBytes); |
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[3564] | 167 | TRACE("Flow data loading bytes: %d components: %d", nBytes, nComponents); |
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[1429] | 168 | if (GetDataStream(interp, buf, nBytes) != TCL_OK) { |
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| 169 | return TCL_ERROR; |
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| 170 | } |
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[4830] | 171 | char *bytes = (char *)buf.bytes(); |
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| 172 | size_t length = buf.size(); |
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| 173 | |
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[4893] | 174 | Unirect3d *unirect = NULL; |
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[1478] | 175 | |
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[4612] | 176 | Flow *flow = (Flow *)clientData; |
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[1446] | 177 | if ((length > 4) && (strncmp(bytes, "<DX>", 4) == 0)) { |
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[4893] | 178 | unirect = new Unirect3d(nComponents); |
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[4904] | 179 | if (!unirect->importDx(nComponents, length - 4, bytes + 4)) { |
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| 180 | Tcl_AppendResult(interp, "Failed to load DX file", (char *)NULL); |
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[4893] | 181 | delete unirect; |
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[2875] | 182 | return TCL_ERROR; |
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| 183 | } |
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[1462] | 184 | } else if ((length > 10) && (strncmp(bytes, "unirect3d ", 10) == 0)) { |
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[4893] | 185 | unirect = new Unirect3d(nComponents); |
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[4904] | 186 | if (unirect->parseBuffer(interp, bytes, length) != TCL_OK) { |
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[4893] | 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, "unirect2d ", 10) == 0)) { |
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[4893] | 191 | Unirect2d *u2dPtr = new Unirect2d(nComponents); |
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[4904] | 192 | if (u2dPtr->parseBuffer(interp, bytes, length) != TCL_OK) { |
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[2875] | 193 | delete u2dPtr; |
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| 194 | return TCL_ERROR; |
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| 195 | } |
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[4904] | 196 | unirect = new Unirect3d(nComponents); |
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[4893] | 197 | unirect->convert(u2dPtr); |
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[2875] | 198 | delete u2dPtr; |
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[1429] | 199 | } else { |
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[3564] | 200 | TRACE("header is %.14s", buf.bytes()); |
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[4893] | 201 | unirect = new Unirect3d(nComponents); |
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[4904] | 202 | if (!unirect->importDx(nComponents, length, bytes)) { |
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| 203 | Tcl_AppendResult(interp, "Failed to load DX file", (char *)NULL); |
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[4893] | 204 | delete unirect; |
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[2875] | 205 | return TCL_ERROR; |
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| 206 | } |
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[1429] | 207 | } |
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[4904] | 208 | if (unirect != NULL && unirect->nValues() == 0) { |
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[4893] | 209 | delete unirect; |
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[2875] | 210 | Tcl_AppendResult(interp, "no data found in stream", (char *)NULL); |
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| 211 | return TCL_ERROR; |
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[1510] | 212 | } |
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[4904] | 213 | if (unirect != NULL) { |
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| 214 | TRACE("nx = %d ny = %d nz = %d", |
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| 215 | unirect->xNum(), unirect->yNum(), unirect->zNum()); |
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| 216 | TRACE("x0 = %lg y0 = %lg z0 = %lg", |
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| 217 | unirect->xMin(), unirect->yMin(), unirect->zMin()); |
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| 218 | TRACE("lx = %lg ly = %lg lz = %lg", |
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| 219 | unirect->xMax() - unirect->xMin(), |
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| 220 | unirect->yMax() - unirect->yMin(), |
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| 221 | unirect->zMax() - unirect->zMin()); |
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| 222 | TRACE("dx = %lg dy = %lg dz = %lg", |
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| 223 | unirect->xNum() > 1 ? (unirect->xMax() - unirect->xMin())/(unirect->xNum()-1) : 0, |
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| 224 | unirect->yNum() > 1 ? (unirect->yMax() - unirect->yMin())/(unirect->yNum()-1) : 0, |
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| 225 | unirect->zNum() > 1 ? (unirect->zMax() - unirect->zMin())/(unirect->zNum()-1) : 0); |
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| 226 | TRACE("magMin = %lg magMax = %lg", |
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| 227 | unirect->magMin(), unirect->magMax()); |
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| 228 | flow->data(unirect); |
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| 229 | |
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[1431] | 230 | char info[1024]; |
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[4830] | 231 | int length = |
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| 232 | sprintf(info, "nv>data tag %s min %g max %g\n", |
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[4893] | 233 | flow->name(), unirect->magMin(), unirect->magMax()); |
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[4874] | 234 | if (SocketWrite(info, (size_t)length) < 0) { |
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[4830] | 235 | return TCL_ERROR; |
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| 236 | } |
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[1431] | 237 | } |
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[4904] | 238 | Flow::updatePending = true; |
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| 239 | NanoVis::eventuallyRedraw(); |
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[1429] | 240 | return TCL_OK; |
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| 241 | } |
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| 242 | |
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[4893] | 243 | static CmdSpec flowDataOps[] = { |
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[4884] | 244 | {"follows", 1, FlowDataFollowsOp, 5, 5, "size nComponents",}, |
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[1429] | 245 | }; |
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| 246 | static int nFlowDataOps = NumCmdSpecs(flowDataOps); |
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| 247 | |
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| 248 | static int |
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| 249 | FlowDataOp(ClientData clientData, Tcl_Interp *interp, int objc, |
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[2875] | 250 | Tcl_Obj *const *objv) |
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[1429] | 251 | { |
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| 252 | Tcl_ObjCmdProc *proc; |
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| 253 | |
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[4893] | 254 | proc = GetOpFromObj(interp, nFlowDataOps, flowDataOps, |
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| 255 | CMDSPEC_ARG2, objc, objv, 0); |
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[1429] | 256 | if (proc == NULL) { |
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| 257 | return TCL_ERROR; |
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| 258 | } |
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| 259 | return (*proc) (clientData, interp, objc, objv); |
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| 260 | } |
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| 261 | |
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[3567] | 262 | /** |
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[2875] | 263 | * \brief Convert a Tcl_Obj representing the label of a child node into its |
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| 264 | * integer node id. |
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[1429] | 265 | * |
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[2875] | 266 | * \param clientData Flag indicating if the node is considered before or |
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| 267 | * after the insertion position. |
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| 268 | * \param interp Interpreter to send results back to |
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| 269 | * \param switchName Not used |
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| 270 | * \param objPtr String representation |
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| 271 | * \param record Structure record |
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| 272 | * \param offset Not used |
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| 273 | * \param flags Not used |
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[1429] | 274 | * |
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[2875] | 275 | * \return The return value is a standard Tcl result. |
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[1429] | 276 | */ |
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| 277 | static int |
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[2875] | 278 | AxisSwitchProc(ClientData clientData, Tcl_Interp *interp, |
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| 279 | const char *switchName, Tcl_Obj *objPtr, |
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| 280 | char *record, int offset, int flags) |
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[1429] | 281 | { |
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| 282 | const char *string = Tcl_GetString(objPtr); |
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| 283 | if (string[1] == '\0') { |
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[4904] | 284 | FlowSliceAxis *axisPtr = (FlowSliceAxis *)(record + offset); |
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[1429] | 285 | char c; |
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| 286 | c = tolower((unsigned char)string[0]); |
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| 287 | if (c == 'x') { |
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[4904] | 288 | *axisPtr = AXIS_X; |
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[1429] | 289 | return TCL_OK; |
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| 290 | } else if (c == 'y') { |
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[4904] | 291 | *axisPtr = AXIS_Y; |
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[1429] | 292 | return TCL_OK; |
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| 293 | } else if (c == 'z') { |
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[4904] | 294 | *axisPtr = AXIS_Z; |
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[1429] | 295 | return TCL_OK; |
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| 296 | } |
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| 297 | /*FALLTHRU*/ |
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| 298 | } |
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| 299 | Tcl_AppendResult(interp, "bad axis \"", string, |
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| 300 | "\": should be x, y, or z", (char*)NULL); |
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| 301 | return TCL_ERROR; |
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| 302 | } |
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| 303 | |
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[2875] | 304 | /** |
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| 305 | * \brief Convert a Tcl_Obj representing the label of a list of four color |
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| 306 | * components in to a RGBA color value. |
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[1429] | 307 | * |
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[2875] | 308 | * \param clientData Flag indicating if the node is considered before or |
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| 309 | * after the insertion position. |
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| 310 | * \param interp Interpreter to send results back to |
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| 311 | * \param switchName Not used |
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| 312 | * \param objPtr String representation |
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| 313 | * \param record Structure record |
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| 314 | * \param offset Not used |
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| 315 | * \param flags Not used |
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| 316 | * |
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| 317 | * \return The return value is a standard Tcl result. |
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[1429] | 318 | */ |
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| 319 | static int |
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[2875] | 320 | ColorSwitchProc(ClientData clientData, Tcl_Interp *interp, |
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| 321 | const char *switchName, Tcl_Obj *objPtr, |
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| 322 | char *record, int offset, int flags) |
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[1429] | 323 | { |
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| 324 | Tcl_Obj **objv; |
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| 325 | int objc; |
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[3567] | 326 | FlowColor *color = (FlowColor *)(record + offset); |
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[1429] | 327 | |
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| 328 | if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { |
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[2875] | 329 | return TCL_ERROR; |
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[1429] | 330 | } |
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| 331 | if ((objc < 3) || (objc > 4)) { |
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[2875] | 332 | Tcl_AppendResult(interp, "wrong # of elements in color definition", |
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| 333 | (char *)NULL); |
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| 334 | return TCL_ERROR; |
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[1429] | 335 | } |
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| 336 | float values[4]; |
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| 337 | int i; |
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| 338 | values[3] = 1.0f; |
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| 339 | for (i = 0; i < objc; i++) { |
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[2875] | 340 | float value; |
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[1429] | 341 | |
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[2875] | 342 | if (GetFloatFromObj(interp, objv[i], &value) != TCL_OK) { |
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| 343 | return TCL_ERROR; |
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| 344 | } |
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| 345 | if ((value < 0.0) || (value > 1.0)) { |
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| 346 | Tcl_AppendResult(interp, "bad component value in \"", |
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| 347 | Tcl_GetString(objPtr), "\": color values must be [0..1]", |
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| 348 | (char *)NULL); |
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| 349 | return TCL_ERROR; |
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| 350 | } |
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| 351 | values[i] = value; |
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| 352 | } |
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[3567] | 353 | color->r = values[0]; |
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| 354 | color->g = values[1]; |
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| 355 | color->b = values[2]; |
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| 356 | color->a = values[3]; |
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[1429] | 357 | return TCL_OK; |
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| 358 | } |
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| 359 | |
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[2875] | 360 | /** |
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| 361 | * \brief Convert a Tcl_Obj representing the a 3-D coordinate into a point. |
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[1429] | 362 | * |
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[2875] | 363 | * \param clientData Flag indicating if the node is considered before or |
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| 364 | * after the insertion position. |
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| 365 | * \param interp Interpreter to send results back to |
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| 366 | * \param switchName Not used |
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| 367 | * \param objPtr String representation |
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| 368 | * \param record Structure record |
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| 369 | * \param offset Not used |
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| 370 | * \param flags Not used |
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[1429] | 371 | * |
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[2875] | 372 | * \return The return value is a standard Tcl result. |
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[1429] | 373 | */ |
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| 374 | static int |
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[2875] | 375 | PointSwitchProc(ClientData clientData, Tcl_Interp *interp, |
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| 376 | const char *switchName, Tcl_Obj *objPtr, |
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| 377 | char *record, int offset, int flags) |
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[1429] | 378 | { |
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[3567] | 379 | FlowPoint *point = (FlowPoint *)(record + offset); |
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[1429] | 380 | int objc; |
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| 381 | Tcl_Obj **objv; |
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| 382 | |
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| 383 | if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { |
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[2875] | 384 | return TCL_ERROR; |
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[1429] | 385 | } |
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| 386 | if (objc != 3) { |
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[2875] | 387 | Tcl_AppendResult(interp, "wrong # of elements for box coordinates: " |
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| 388 | " should be \"x y z\"", (char *)NULL); |
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| 389 | return TCL_ERROR; |
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[1429] | 390 | } |
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| 391 | float values[3]; |
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| 392 | int i; |
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| 393 | for (i = 0; i < objc; i++) { |
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[2875] | 394 | float value; |
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[1429] | 395 | |
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[2875] | 396 | if (GetFloatFromObj(interp, objv[i], &value) != TCL_OK) { |
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| 397 | return TCL_ERROR; |
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| 398 | } |
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| 399 | values[i] = value; |
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| 400 | } |
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[3567] | 401 | point->x = values[0]; |
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| 402 | point->y = values[1]; |
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| 403 | point->z = values[2]; |
---|
[1429] | 404 | return TCL_OK; |
---|
| 405 | } |
---|
| 406 | |
---|
[2875] | 407 | /** |
---|
| 408 | * \brief Convert a Tcl_Obj representing the a 3-D coordinate into a point. |
---|
[1429] | 409 | * |
---|
[2875] | 410 | * \param clientData Flag indicating if the node is considered before or |
---|
| 411 | * after the insertion position. |
---|
| 412 | * \param interp Interpreter to send results back to |
---|
| 413 | * \param switchName Not used |
---|
| 414 | * \param objPtr String representation |
---|
| 415 | * \param record Structure record |
---|
| 416 | * \param offset Not used |
---|
| 417 | * \param flags Not used |
---|
[1429] | 418 | * |
---|
[2875] | 419 | * \return The return value is a standard Tcl result. |
---|
[1429] | 420 | */ |
---|
| 421 | static int |
---|
[2875] | 422 | PositionSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 423 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 424 | char *record, int offset, int flags) |
---|
[1429] | 425 | { |
---|
| 426 | FlowPosition *posPtr = (FlowPosition *)(record + offset); |
---|
| 427 | const char *string; |
---|
| 428 | char *p; |
---|
| 429 | |
---|
| 430 | string = Tcl_GetString(objPtr); |
---|
[1571] | 431 | p = strrchr((char *)string, '%'); |
---|
[1429] | 432 | if (p == NULL) { |
---|
[2875] | 433 | float value; |
---|
[1429] | 434 | |
---|
[2875] | 435 | if (GetFloatFromObj(interp, objPtr, &value) != TCL_OK) { |
---|
| 436 | return TCL_ERROR; |
---|
| 437 | } |
---|
| 438 | posPtr->value = value; |
---|
| 439 | posPtr->flags = ABSPOS; |
---|
[1429] | 440 | } else { |
---|
[2875] | 441 | double value; |
---|
[1429] | 442 | |
---|
[2875] | 443 | *p = '\0'; |
---|
| 444 | if (Tcl_GetDouble(interp, string, &value) != TCL_OK) { |
---|
| 445 | return TCL_ERROR; |
---|
| 446 | } |
---|
| 447 | posPtr->value = (float)value * 0.01; |
---|
| 448 | posPtr->flags = RELPOS; |
---|
[1429] | 449 | } |
---|
| 450 | return TCL_OK; |
---|
| 451 | } |
---|
| 452 | |
---|
[2875] | 453 | /** |
---|
| 454 | * \brief Convert a Tcl_Obj representing the transfer function into a |
---|
| 455 | * TransferFunction pointer. |
---|
[1429] | 456 | * |
---|
[2875] | 457 | * The transfer function must have been previously defined. |
---|
[1429] | 458 | * |
---|
[2875] | 459 | * \param clientData Flag indicating if the node is considered before or |
---|
| 460 | * after the insertion position. |
---|
| 461 | * \param interp Interpreter to send results back to |
---|
| 462 | * \param switchName Not used |
---|
| 463 | * \param objPtr String representation |
---|
| 464 | * \param record Structure record |
---|
| 465 | * \param offset Not used |
---|
| 466 | * \param flags Not used |
---|
[1429] | 467 | * |
---|
[2875] | 468 | * \return The return value is a standard Tcl result. |
---|
[1429] | 469 | */ |
---|
| 470 | static int |
---|
[2875] | 471 | TransferFunctionSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 472 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 473 | char *record, int offset, int flags) |
---|
[1429] | 474 | { |
---|
| 475 | TransferFunction **funcPtrPtr = (TransferFunction **)(record + offset); |
---|
[3567] | 476 | TransferFunction *tf = NanoVis::getTransferFunction(Tcl_GetString(objPtr)); |
---|
| 477 | if (tf == NULL) { |
---|
[1429] | 478 | Tcl_AppendResult(interp, "transfer function \"", Tcl_GetString(objPtr), |
---|
| 479 | "\" is not defined", (char*)NULL); |
---|
| 480 | return TCL_ERROR; |
---|
| 481 | } |
---|
[3567] | 482 | *funcPtrPtr = tf; |
---|
[1429] | 483 | return TCL_OK; |
---|
| 484 | } |
---|
| 485 | |
---|
| 486 | static int |
---|
| 487 | FlowConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 488 | Tcl_Obj *const *objv) |
---|
[1429] | 489 | { |
---|
[4612] | 490 | Flow *flow = (Flow *)clientData; |
---|
[1429] | 491 | |
---|
[4612] | 492 | if (flow->parseSwitches(interp, objc - 2, objv + 2) != TCL_OK) { |
---|
[2875] | 493 | return TCL_ERROR; |
---|
[1429] | 494 | } |
---|
[4904] | 495 | Flow::updatePending = true; |
---|
| 496 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 497 | return TCL_OK; |
---|
| 498 | } |
---|
| 499 | |
---|
| 500 | static int |
---|
| 501 | FlowParticlesAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 502 | Tcl_Obj *const *objv) |
---|
[1429] | 503 | { |
---|
[4612] | 504 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 505 | const char *particlesName = Tcl_GetString(objv[3]); |
---|
| 506 | FlowParticles *particles = flow->createParticles(particlesName); |
---|
| 507 | if (particles == NULL) { |
---|
| 508 | Tcl_AppendResult(interp, "Flow particle injection plane \"", |
---|
| 509 | particlesName, |
---|
| 510 | "\" already exists or could not be created", |
---|
| 511 | (char*)NULL); |
---|
[2875] | 512 | return TCL_ERROR; |
---|
[1429] | 513 | } |
---|
[3567] | 514 | if (particles->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 515 | flow->deleteParticles(particlesName); |
---|
[2875] | 516 | return TCL_ERROR; |
---|
[1429] | 517 | } |
---|
[3567] | 518 | particles->configure(); |
---|
[4904] | 519 | Flow::updatePending = true; |
---|
[2877] | 520 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 521 | Tcl_SetObjResult(interp, objv[3]); |
---|
| 522 | return TCL_OK; |
---|
| 523 | } |
---|
| 524 | |
---|
| 525 | static int |
---|
| 526 | FlowParticlesConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 527 | Tcl_Obj *const *objv) |
---|
[1429] | 528 | { |
---|
[4612] | 529 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 530 | const char *particlesName = Tcl_GetString(objv[3]); |
---|
| 531 | FlowParticles *particles = flow->getParticles(particlesName); |
---|
| 532 | if (particles == NULL) { |
---|
| 533 | Tcl_AppendResult(interp, "Flow particle injection plane \"", |
---|
| 534 | particlesName, "\" not found", |
---|
| 535 | (char*)NULL); |
---|
[2875] | 536 | return TCL_ERROR; |
---|
[1429] | 537 | } |
---|
[3567] | 538 | if (particles->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
[2875] | 539 | return TCL_ERROR; |
---|
[1429] | 540 | } |
---|
[4904] | 541 | if (particles->configure()) { |
---|
| 542 | Flow::updatePending = true; |
---|
| 543 | } |
---|
| 544 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 545 | return TCL_OK; |
---|
| 546 | } |
---|
| 547 | |
---|
| 548 | static int |
---|
| 549 | FlowParticlesDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 550 | Tcl_Obj *const *objv) |
---|
[1429] | 551 | { |
---|
[4612] | 552 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 553 | for (int i = 3; i < objc; i++) { |
---|
| 554 | flow->deleteParticles(Tcl_GetString(objv[i])); |
---|
[1429] | 555 | } |
---|
[2877] | 556 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 557 | return TCL_OK; |
---|
| 558 | } |
---|
| 559 | |
---|
| 560 | static int |
---|
| 561 | FlowParticlesNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 562 | Tcl_Obj *const *objv) |
---|
[1429] | 563 | { |
---|
[4612] | 564 | Flow *flow = (Flow *)clientData; |
---|
[1429] | 565 | Tcl_Obj *listObjPtr; |
---|
| 566 | listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
[3567] | 567 | std::vector<std::string> names; |
---|
| 568 | flow->getParticlesNames(names); |
---|
| 569 | for (std::vector<std::string>::iterator itr = names.begin(); |
---|
| 570 | itr != names.end(); ++itr) { |
---|
| 571 | Tcl_Obj *objPtr = Tcl_NewStringObj(itr->c_str(), -1); |
---|
[2875] | 572 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
[1429] | 573 | } |
---|
| 574 | Tcl_SetObjResult(interp, listObjPtr); |
---|
| 575 | return TCL_OK; |
---|
| 576 | } |
---|
| 577 | |
---|
[4893] | 578 | static CmdSpec flowParticlesOps[] = { |
---|
[1429] | 579 | {"add", 1, FlowParticlesAddOp, 4, 0, "name ?switches?",}, |
---|
| 580 | {"configure", 1, FlowParticlesConfigureOp, 4, 0, "name ?switches?",}, |
---|
[3567] | 581 | {"delete", 1, FlowParticlesDeleteOp, 4, 0, "name ?name...?"}, |
---|
| 582 | {"names", 1, FlowParticlesNamesOp, 3, 3, ""}, |
---|
[1429] | 583 | }; |
---|
| 584 | |
---|
| 585 | static int nFlowParticlesOps = NumCmdSpecs(flowParticlesOps); |
---|
| 586 | |
---|
[2875] | 587 | /** |
---|
| 588 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
| 589 | * object. |
---|
| 590 | * |
---|
| 591 | * Side effects: See the user documentation. |
---|
| 592 | * |
---|
| 593 | * $flow particles oper $name |
---|
| 594 | * |
---|
| 595 | * \return A standard Tcl result. |
---|
| 596 | */ |
---|
[1429] | 597 | static int |
---|
| 598 | FlowParticlesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 599 | Tcl_Obj *const *objv) |
---|
[1429] | 600 | { |
---|
| 601 | Tcl_ObjCmdProc *proc; |
---|
[4893] | 602 | proc = GetOpFromObj(interp, nFlowParticlesOps, flowParticlesOps, |
---|
| 603 | CMDSPEC_ARG2, objc, objv, 0); |
---|
[1429] | 604 | if (proc == NULL) { |
---|
[2875] | 605 | return TCL_ERROR; |
---|
[1429] | 606 | } |
---|
[4612] | 607 | Flow *flow = (Flow *)clientData; |
---|
| 608 | Tcl_Preserve(flow); |
---|
[1429] | 609 | int result; |
---|
| 610 | result = (*proc) (clientData, interp, objc, objv); |
---|
[4612] | 611 | Tcl_Release(flow); |
---|
[1429] | 612 | return result; |
---|
| 613 | } |
---|
| 614 | |
---|
| 615 | static int |
---|
| 616 | FlowBoxAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 617 | Tcl_Obj *const *objv) |
---|
[1429] | 618 | { |
---|
[4612] | 619 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 620 | const char *boxName = Tcl_GetString(objv[3]); |
---|
| 621 | FlowBox *box = flow->createBox(boxName); |
---|
| 622 | if (box == NULL) { |
---|
| 623 | Tcl_AppendResult(interp, "Flow box \"", boxName, |
---|
| 624 | "\" already exists or could not be created", |
---|
| 625 | (char*)NULL); |
---|
[2875] | 626 | return TCL_ERROR; |
---|
[1429] | 627 | } |
---|
[3567] | 628 | if (box->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 629 | flow->deleteBox(boxName); |
---|
[2875] | 630 | return TCL_ERROR; |
---|
[1429] | 631 | } |
---|
[3567] | 632 | NanoVis::eventuallyRedraw(); |
---|
| 633 | Tcl_SetObjResult(interp, objv[3]); |
---|
| 634 | return TCL_OK; |
---|
| 635 | } |
---|
| 636 | |
---|
| 637 | static int |
---|
| 638 | FlowBoxConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 639 | Tcl_Obj *const *objv) |
---|
| 640 | { |
---|
[4612] | 641 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 642 | const char *boxName = Tcl_GetString(objv[3]); |
---|
| 643 | FlowBox *box = flow->getBox(boxName); |
---|
| 644 | if (box == NULL) { |
---|
| 645 | Tcl_AppendResult(interp, "Flow box \"", boxName, "\" not found", |
---|
| 646 | (char*)NULL); |
---|
[2875] | 647 | return TCL_ERROR; |
---|
[1429] | 648 | } |
---|
[3567] | 649 | if (box->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
| 650 | return TCL_ERROR; |
---|
| 651 | } |
---|
[2877] | 652 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 653 | return TCL_OK; |
---|
| 654 | } |
---|
| 655 | |
---|
| 656 | static int |
---|
| 657 | FlowBoxDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 658 | Tcl_Obj *const *objv) |
---|
[1429] | 659 | { |
---|
[4612] | 660 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 661 | for (int i = 3; i < objc; i++) { |
---|
| 662 | flow->deleteBox(Tcl_GetString(objv[i])); |
---|
[1429] | 663 | } |
---|
[2877] | 664 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 665 | return TCL_OK; |
---|
| 666 | } |
---|
| 667 | |
---|
| 668 | static int |
---|
| 669 | FlowBoxNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 670 | Tcl_Obj *const *objv) |
---|
[1429] | 671 | { |
---|
[4612] | 672 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 673 | Tcl_Obj *listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
| 674 | std::vector<std::string> names; |
---|
| 675 | flow->getBoxNames(names); |
---|
| 676 | for (std::vector<std::string>::iterator itr = names.begin(); |
---|
| 677 | itr != names.end(); ++itr) { |
---|
| 678 | Tcl_Obj *objPtr = Tcl_NewStringObj(itr->c_str(), -1); |
---|
[2875] | 679 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
[1429] | 680 | } |
---|
| 681 | Tcl_SetObjResult(interp, listObjPtr); |
---|
| 682 | return TCL_OK; |
---|
| 683 | } |
---|
| 684 | |
---|
[4893] | 685 | static CmdSpec flowBoxOps[] = { |
---|
[1429] | 686 | {"add", 1, FlowBoxAddOp, 4, 0, "name ?switches?",}, |
---|
| 687 | {"configure", 1, FlowBoxConfigureOp, 4, 0, "name ?switches?",}, |
---|
[3567] | 688 | {"delete", 1, FlowBoxDeleteOp, 4, 0, "name ?name...?"}, |
---|
| 689 | {"names", 1, FlowBoxNamesOp, 3, 3, ""}, |
---|
[1429] | 690 | }; |
---|
| 691 | |
---|
| 692 | static int nFlowBoxOps = NumCmdSpecs(flowBoxOps); |
---|
| 693 | |
---|
[2875] | 694 | /** |
---|
| 695 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
| 696 | * object. |
---|
| 697 | * |
---|
| 698 | * Side effects: See the user documentation. |
---|
| 699 | * |
---|
| 700 | * \return A standard Tcl result. |
---|
| 701 | */ |
---|
[1429] | 702 | static int |
---|
| 703 | FlowBoxOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 704 | Tcl_Obj *const *objv) |
---|
[1429] | 705 | { |
---|
| 706 | Tcl_ObjCmdProc *proc; |
---|
[4893] | 707 | proc = GetOpFromObj(interp, nFlowBoxOps, flowBoxOps, |
---|
| 708 | CMDSPEC_ARG2, objc, objv, 0); |
---|
[1429] | 709 | if (proc == NULL) { |
---|
[2875] | 710 | return TCL_ERROR; |
---|
[1429] | 711 | } |
---|
[4612] | 712 | Flow *flow = (Flow *)clientData; |
---|
| 713 | Tcl_Preserve(flow); |
---|
[1429] | 714 | int result; |
---|
| 715 | result = (*proc) (clientData, interp, objc, objv); |
---|
[4612] | 716 | Tcl_Release(flow); |
---|
[1429] | 717 | return result; |
---|
| 718 | } |
---|
| 719 | |
---|
| 720 | /* |
---|
[1474] | 721 | * CLIENT COMMAND: |
---|
| 722 | * $flow legend <width> <height> |
---|
| 723 | * |
---|
| 724 | * Clients use this to generate a legend image for the specified |
---|
| 725 | * transfer function. The legend image is a color gradient from 0 |
---|
| 726 | * to one, drawn in the given transfer function. The resulting image |
---|
| 727 | * is returned in the size <width> x <height>. |
---|
| 728 | */ |
---|
| 729 | static int |
---|
| 730 | FlowLegendOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 731 | Tcl_Obj *const *objv) |
---|
[1474] | 732 | { |
---|
[4612] | 733 | Flow *flow = (Flow *)clientData; |
---|
[1474] | 734 | |
---|
| 735 | const char *string = Tcl_GetString(objv[1]); |
---|
| 736 | TransferFunction *tf; |
---|
[4612] | 737 | tf = flow->getTransferFunction(); |
---|
[1474] | 738 | if (tf == NULL) { |
---|
| 739 | Tcl_AppendResult(interp, "unknown transfer function \"", string, "\"", |
---|
[2875] | 740 | (char*)NULL); |
---|
[1474] | 741 | return TCL_ERROR; |
---|
| 742 | } |
---|
| 743 | const char *label; |
---|
| 744 | label = Tcl_GetString(objv[0]); |
---|
| 745 | int w, h; |
---|
| 746 | if ((Tcl_GetIntFromObj(interp, objv[2], &w) != TCL_OK) || |
---|
| 747 | (Tcl_GetIntFromObj(interp, objv[3], &h) != TCL_OK)) { |
---|
| 748 | return TCL_ERROR; |
---|
| 749 | } |
---|
[4904] | 750 | if (Flow::updatePending) { |
---|
| 751 | NanoVis::setFlowRanges(); |
---|
[1474] | 752 | } |
---|
[2877] | 753 | NanoVis::renderLegend(tf, NanoVis::magMin, NanoVis::magMax, w, h, label); |
---|
[1474] | 754 | return TCL_OK; |
---|
| 755 | } |
---|
| 756 | |
---|
[4893] | 757 | static CmdSpec flowInstOps[] = { |
---|
[1429] | 758 | {"box", 1, FlowBoxOp, 2, 0, "oper ?args?"}, |
---|
| 759 | {"configure", 1, FlowConfigureOp, 2, 0, "?switches?"}, |
---|
[2875] | 760 | {"data", 1, FlowDataOp, 2, 0, "oper ?args?"}, |
---|
[1474] | 761 | {"legend", 1, FlowLegendOp, 4, 4, "w h"}, |
---|
[1429] | 762 | {"particles", 1, FlowParticlesOp, 2, 0, "oper ?args?"} |
---|
| 763 | }; |
---|
| 764 | static int nFlowInstOps = NumCmdSpecs(flowInstOps); |
---|
| 765 | |
---|
[2875] | 766 | /** |
---|
| 767 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
| 768 | * object. |
---|
| 769 | * |
---|
| 770 | * Side effects: See the user documentation. |
---|
| 771 | * |
---|
| 772 | * \return A standard Tcl result. |
---|
| 773 | */ |
---|
[4612] | 774 | int |
---|
[4874] | 775 | nv::FlowInstObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 776 | Tcl_Obj *const *objv) |
---|
[1429] | 777 | { |
---|
| 778 | Tcl_ObjCmdProc *proc; |
---|
[4893] | 779 | proc = GetOpFromObj(interp, nFlowInstOps, flowInstOps, |
---|
| 780 | CMDSPEC_ARG1, objc, objv, 0); |
---|
[1429] | 781 | if (proc == NULL) { |
---|
[2875] | 782 | return TCL_ERROR; |
---|
[1429] | 783 | } |
---|
| 784 | assert(CheckGL(AT)); |
---|
[4612] | 785 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 786 | Tcl_Preserve(flow); |
---|
| 787 | int result = (*proc) (clientData, interp, objc, objv); |
---|
| 788 | Tcl_Release(flow); |
---|
[1429] | 789 | return result; |
---|
| 790 | } |
---|
| 791 | |
---|
[2875] | 792 | /** |
---|
[3567] | 793 | * \brief Deletes the command associated with the flow |
---|
[1429] | 794 | * |
---|
[3567] | 795 | * This is called only when the command associated with the flow is destroyed. |
---|
[1429] | 796 | */ |
---|
[4612] | 797 | void |
---|
[4874] | 798 | nv::FlowInstDeleteProc(ClientData clientData) |
---|
[1429] | 799 | { |
---|
[4612] | 800 | Flow *flow = (Flow *)clientData; |
---|
[3567] | 801 | NanoVis::deleteFlow(flow->name()); |
---|
[1429] | 802 | } |
---|
| 803 | |
---|
| 804 | static int |
---|
| 805 | FlowAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 806 | Tcl_Obj *const *objv) |
---|
[1429] | 807 | { |
---|
[3567] | 808 | const char *name = Tcl_GetString(objv[2]); |
---|
| 809 | Tcl_CmdInfo cmdInfo; |
---|
| 810 | if (Tcl_GetCommandInfo(interp, name, &cmdInfo)) { |
---|
| 811 | Tcl_AppendResult(interp, "an another command \"", name, |
---|
| 812 | "\" already exists.", (char *)NULL); |
---|
[3576] | 813 | return TCL_ERROR; |
---|
[1429] | 814 | } |
---|
[4612] | 815 | Flow *flow = NanoVis::createFlow(interp, name); |
---|
[3567] | 816 | if (flow == NULL) { |
---|
| 817 | Tcl_AppendResult(interp, "Flow \"", name, "\" already exists", |
---|
| 818 | (char*)NULL); |
---|
[2875] | 819 | return TCL_ERROR; |
---|
[1429] | 820 | } |
---|
[3567] | 821 | if (flow->parseSwitches(interp, objc - 3, objv + 3) != TCL_OK) { |
---|
| 822 | Tcl_DeleteCommand(interp, flow->name()); |
---|
[2875] | 823 | return TCL_ERROR; |
---|
[1429] | 824 | } |
---|
| 825 | Tcl_SetObjResult(interp, objv[2]); |
---|
[2877] | 826 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 827 | return TCL_OK; |
---|
| 828 | } |
---|
| 829 | |
---|
| 830 | static int |
---|
| 831 | FlowDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 832 | Tcl_Obj *const *objv) |
---|
[1429] | 833 | { |
---|
[3567] | 834 | for (int i = 2; i < objc; i++) { |
---|
[4612] | 835 | Flow *flow = NanoVis::getFlow(Tcl_GetString(objv[i])); |
---|
[3567] | 836 | if (flow != NULL) { |
---|
| 837 | Tcl_DeleteCommandFromToken(interp, flow->getCommandToken()); |
---|
[2875] | 838 | } |
---|
[1429] | 839 | } |
---|
[4904] | 840 | Flow::updatePending = true; |
---|
| 841 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 842 | return TCL_OK; |
---|
| 843 | } |
---|
| 844 | |
---|
[1431] | 845 | static int |
---|
| 846 | FlowExistsOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 847 | Tcl_Obj *const *objv) |
---|
[1431] | 848 | { |
---|
[3567] | 849 | bool value = false; |
---|
[4612] | 850 | Flow *flow = NanoVis::getFlow(Tcl_GetString(objv[2])); |
---|
[3567] | 851 | if (flow != NULL) { |
---|
[2875] | 852 | value = true; |
---|
[1431] | 853 | } |
---|
| 854 | Tcl_SetBooleanObj(Tcl_GetObjResult(interp), (int)value); |
---|
| 855 | return TCL_OK; |
---|
| 856 | } |
---|
| 857 | |
---|
[2875] | 858 | /** |
---|
| 859 | * \brief flow goto number |
---|
[1467] | 860 | */ |
---|
| 861 | static int |
---|
| 862 | FlowGotoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 863 | Tcl_Obj *const *objv) |
---|
[1467] | 864 | { |
---|
| 865 | int nSteps; |
---|
| 866 | if (Tcl_GetIntFromObj(interp, objv[2], &nSteps) != TCL_OK) { |
---|
| 867 | return TCL_ERROR; |
---|
| 868 | } |
---|
| 869 | if ((nSteps < 0) || (nSteps > SHRT_MAX)) { |
---|
[2875] | 870 | Tcl_AppendResult(interp, "flow goto: bad # of steps \"", |
---|
| 871 | Tcl_GetString(objv[2]), "\"", (char *)NULL); |
---|
| 872 | return TCL_ERROR; |
---|
[1467] | 873 | } |
---|
[3566] | 874 | NanoVis::resetFlows(); |
---|
[4904] | 875 | if (Flow::updatePending) { |
---|
| 876 | NanoVis::setFlowRanges(); |
---|
[1467] | 877 | } |
---|
[3567] | 878 | for (int i = 0; i < nSteps; i++) { |
---|
[4904] | 879 | NanoVis::licRenderer->convolve(); |
---|
[3566] | 880 | NanoVis::advectFlows(); |
---|
[1467] | 881 | } |
---|
[2877] | 882 | NanoVis::eventuallyRedraw(); |
---|
[1467] | 883 | return TCL_OK; |
---|
| 884 | } |
---|
| 885 | |
---|
[1429] | 886 | static int |
---|
| 887 | FlowNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 888 | Tcl_Obj *const *objv) |
---|
[1429] | 889 | { |
---|
| 890 | Tcl_Obj *listObjPtr; |
---|
| 891 | listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
[3567] | 892 | for (NanoVis::FlowHashmap::iterator itr = NanoVis::flowTable.begin(); |
---|
| 893 | itr != NanoVis::flowTable.end(); ++itr) { |
---|
[4612] | 894 | Flow *flow = itr->second; |
---|
[3567] | 895 | Tcl_Obj *objPtr = Tcl_NewStringObj(flow->name(), -1); |
---|
[2875] | 896 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
[1429] | 897 | } |
---|
| 898 | Tcl_SetObjResult(interp, listObjPtr); |
---|
| 899 | return TCL_OK; |
---|
| 900 | } |
---|
| 901 | |
---|
| 902 | static int |
---|
| 903 | FlowNextOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 904 | Tcl_Obj *const *objv) |
---|
[1429] | 905 | { |
---|
| 906 | assert(NanoVis::licRenderer != NULL); |
---|
[4904] | 907 | if (Flow::updatePending) { |
---|
| 908 | NanoVis::setFlowRanges(); |
---|
[1429] | 909 | } |
---|
| 910 | NanoVis::licRenderer->convolve(); |
---|
[3566] | 911 | NanoVis::advectFlows(); |
---|
[4904] | 912 | NanoVis::eventuallyRedraw(); |
---|
[1429] | 913 | return TCL_OK; |
---|
| 914 | } |
---|
| 915 | |
---|
| 916 | static int |
---|
| 917 | FlowResetOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 918 | Tcl_Obj *const *objv) |
---|
[1429] | 919 | { |
---|
[3566] | 920 | NanoVis::resetFlows(); |
---|
[1429] | 921 | return TCL_OK; |
---|
| 922 | } |
---|
| 923 | |
---|
[4904] | 924 | #if defined(HAVE_FFMPEG) || defined(HAVE_AVCONV) |
---|
[4613] | 925 | |
---|
[2875] | 926 | /** |
---|
| 927 | * \brief Convert a Tcl_Obj representing the video format into its |
---|
| 928 | * integer id. |
---|
[2070] | 929 | * |
---|
[2875] | 930 | * \param clientData Not used |
---|
| 931 | * \param interp Interpreter to send results back to |
---|
| 932 | * \param switchName Not used |
---|
| 933 | * \param objPtr String representation |
---|
| 934 | * \param record Structure record |
---|
| 935 | * \param offset Not used |
---|
| 936 | * \param flags Not used |
---|
[2070] | 937 | * |
---|
[2875] | 938 | * \return The return value is a standard Tcl result. |
---|
[2070] | 939 | */ |
---|
| 940 | static int |
---|
[2875] | 941 | VideoFormatSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
| 942 | const char *switchName, Tcl_Obj *objPtr, |
---|
| 943 | char *record, int offset, int flags) |
---|
[2070] | 944 | { |
---|
[3559] | 945 | Tcl_Obj **formatObjPtr = (Tcl_Obj **)(record + offset); |
---|
| 946 | Tcl_Obj *fmtObjPtr; |
---|
[2070] | 947 | const char *string; |
---|
| 948 | char c; |
---|
[3559] | 949 | int length; |
---|
[2070] | 950 | |
---|
[3559] | 951 | string = Tcl_GetStringFromObj(objPtr, &length); |
---|
[2070] | 952 | c = string[0]; |
---|
[3559] | 953 | if ((c == 'm') && (length > 1) && |
---|
| 954 | (strncmp(string, "mpeg", length) == 0)) { |
---|
| 955 | fmtObjPtr = Tcl_NewStringObj("mpeg1video", 10); |
---|
| 956 | } else if ((c == 't') && (strncmp(string, "theora", length) == 0)) { |
---|
| 957 | fmtObjPtr = Tcl_NewStringObj("theora", 6); |
---|
| 958 | } else if ((c == 'm') && (length > 1) && |
---|
| 959 | (strncmp(string, "mov", length) == 0)) { |
---|
| 960 | fmtObjPtr = Tcl_NewStringObj("mov", 3); |
---|
[2070] | 961 | } else { |
---|
[2875] | 962 | Tcl_AppendResult(interp, "bad video format \"", string, |
---|
| 963 | "\": should be mpeg, theora, or mov", (char*)NULL); |
---|
[3559] | 964 | return TCL_ERROR; |
---|
[2070] | 965 | } |
---|
[3559] | 966 | if (*formatObjPtr != NULL) { |
---|
| 967 | Tcl_DecrRefCount(*formatObjPtr); |
---|
| 968 | } |
---|
| 969 | Tcl_IncrRefCount(fmtObjPtr); |
---|
| 970 | *formatObjPtr = fmtObjPtr; |
---|
| 971 | return TCL_OK; |
---|
[2070] | 972 | } |
---|
| 973 | |
---|
[3559] | 974 | struct FlowVideoSwitches { |
---|
[2875] | 975 | float frameRate; /**< Frame rate */ |
---|
| 976 | int bitRate; /**< Video bitrate */ |
---|
| 977 | int width, height; /**< Dimensions of video frame. */ |
---|
[3559] | 978 | int numFrames; |
---|
| 979 | Tcl_Obj *formatObjPtr; |
---|
[1515] | 980 | }; |
---|
| 981 | |
---|
[4893] | 982 | static SwitchParseProc VideoFormatSwitchProc; |
---|
| 983 | static SwitchCustom videoFormatSwitch = { |
---|
[1515] | 984 | VideoFormatSwitchProc, NULL, 0, |
---|
| 985 | }; |
---|
| 986 | |
---|
[4893] | 987 | static SwitchSpec flowVideoSwitches[] = { |
---|
| 988 | {SWITCH_INT, "-bitrate", "value", |
---|
[3559] | 989 | offsetof(FlowVideoSwitches, bitRate), 0}, |
---|
[4893] | 990 | {SWITCH_CUSTOM, "-format", "string", |
---|
[3559] | 991 | offsetof(FlowVideoSwitches, formatObjPtr), 0, 0, &videoFormatSwitch}, |
---|
[4893] | 992 | {SWITCH_FLOAT, "-framerate", "value", |
---|
[3559] | 993 | offsetof(FlowVideoSwitches, frameRate), 0}, |
---|
[4893] | 994 | {SWITCH_INT, "-height", "integer", |
---|
[3559] | 995 | offsetof(FlowVideoSwitches, height), 0}, |
---|
[4893] | 996 | {SWITCH_INT, "-numframes", "count", |
---|
[3559] | 997 | offsetof(FlowVideoSwitches, numFrames), 0}, |
---|
[4893] | 998 | {SWITCH_INT, "-width", "integer", |
---|
[3559] | 999 | offsetof(FlowVideoSwitches, width), 0}, |
---|
[4893] | 1000 | {SWITCH_END} |
---|
[1515] | 1001 | }; |
---|
| 1002 | |
---|
[4881] | 1003 | static bool |
---|
| 1004 | ppmWriteToFile(const char *path, const unsigned char *imgData, |
---|
| 1005 | int width, int height) |
---|
[1429] | 1006 | { |
---|
[3559] | 1007 | /* Open the named file for writing. */ |
---|
[4881] | 1008 | int fdOut = creat(path, 0600); |
---|
| 1009 | if (fdOut < 0) { |
---|
| 1010 | ERROR("can't open temporary image file \"%s\": %s", path, strerror(errno)); |
---|
| 1011 | return false; |
---|
[3559] | 1012 | } |
---|
| 1013 | // Generate the PPM binary file header |
---|
| 1014 | char header[200]; |
---|
| 1015 | #define PPM_MAXVAL 255 |
---|
[4881] | 1016 | sprintf(header, "P6 %d %d %d\n", width, height, |
---|
[3559] | 1017 | PPM_MAXVAL); |
---|
[1429] | 1018 | |
---|
[3559] | 1019 | size_t header_length = strlen(header); |
---|
[4881] | 1020 | size_t wordsPerRow = (width * 24 + 31) / 32; |
---|
[3559] | 1021 | size_t bytesPerRow = wordsPerRow * 4; |
---|
[4881] | 1022 | size_t rowLength = width * 3; |
---|
| 1023 | size_t numRecords = height + 1; |
---|
[1515] | 1024 | |
---|
[3559] | 1025 | struct iovec *iov; |
---|
| 1026 | iov = (struct iovec *)malloc(sizeof(struct iovec) * numRecords); |
---|
[1515] | 1027 | |
---|
[3559] | 1028 | // Add the PPM image header. |
---|
| 1029 | iov[0].iov_base = header; |
---|
| 1030 | iov[0].iov_len = header_length; |
---|
[1515] | 1031 | |
---|
[3559] | 1032 | // Now add the image data, reversing the order of the rows. |
---|
| 1033 | int y; |
---|
[4881] | 1034 | unsigned char *srcRowPtr = const_cast<unsigned char *>(imgData); |
---|
[3559] | 1035 | /* Reversing the pointers for the image rows. PPM is top-to-bottom. */ |
---|
[4881] | 1036 | for (y = height; y >= 1; y--) { |
---|
[3559] | 1037 | iov[y].iov_base = srcRowPtr; |
---|
| 1038 | iov[y].iov_len = rowLength; |
---|
| 1039 | srcRowPtr += bytesPerRow; |
---|
[1429] | 1040 | } |
---|
[4881] | 1041 | if (writev(fdOut, iov, numRecords) < 0) { |
---|
| 1042 | ERROR("writing image to \"%s\" failed: %s", path, strerror(errno)); |
---|
[3559] | 1043 | free(iov); |
---|
[4881] | 1044 | close(fdOut); |
---|
| 1045 | return false; |
---|
[1429] | 1046 | } |
---|
[4881] | 1047 | close(fdOut); |
---|
[3559] | 1048 | free(iov); |
---|
[4881] | 1049 | return true; |
---|
[3559] | 1050 | } |
---|
| 1051 | |
---|
[4881] | 1052 | static bool |
---|
| 1053 | MakeImageFiles(char *tmpFileName, |
---|
| 1054 | int width, int height, int numFrames, |
---|
| 1055 | bool *cancelPtr) |
---|
[3559] | 1056 | { |
---|
| 1057 | struct pollfd pollResults; |
---|
[4874] | 1058 | pollResults.fd = g_fdIn; |
---|
[3559] | 1059 | pollResults.events = POLLIN; |
---|
| 1060 | #define PENDING_TIMEOUT 10 /* milliseconds. */ |
---|
| 1061 | int timeout = PENDING_TIMEOUT; |
---|
| 1062 | |
---|
[1508] | 1063 | int oldWidth, oldHeight; |
---|
[2877] | 1064 | oldWidth = NanoVis::winWidth; |
---|
| 1065 | oldHeight = NanoVis::winHeight; |
---|
[1429] | 1066 | |
---|
[4881] | 1067 | if (width != oldWidth || |
---|
| 1068 | height != oldHeight) { |
---|
[2875] | 1069 | // Resize to the requested size. |
---|
[4881] | 1070 | NanoVis::resizeOffscreenBuffer(width, height); |
---|
[1505] | 1071 | } |
---|
[3577] | 1072 | NanoVis::resetFlows(); |
---|
[3559] | 1073 | *cancelPtr = false; |
---|
[4881] | 1074 | bool result = true; |
---|
[3559] | 1075 | size_t length = strlen(tmpFileName); |
---|
[4881] | 1076 | for (int i = 1; i <= numFrames; i++) { |
---|
[3559] | 1077 | if (((i & 0xF) == 0) && (poll(&pollResults, 1, timeout) > 0)) { |
---|
[2875] | 1078 | /* If there's another command on stdin, that means the client is |
---|
| 1079 | * trying to cancel this operation. */ |
---|
[3559] | 1080 | *cancelPtr = true; |
---|
[2875] | 1081 | break; |
---|
| 1082 | } |
---|
[4904] | 1083 | NanoVis::licRenderer->convolve(); |
---|
[3577] | 1084 | NanoVis::advectFlows(); |
---|
[2930] | 1085 | |
---|
| 1086 | int fboOrig; |
---|
| 1087 | glGetIntegerv(GL_FRAMEBUFFER_BINDING_EXT, &fboOrig); |
---|
| 1088 | |
---|
| 1089 | NanoVis::bindOffscreenBuffer(); |
---|
[3497] | 1090 | NanoVis::render(); |
---|
[2877] | 1091 | NanoVis::readScreen(); |
---|
[2930] | 1092 | |
---|
| 1093 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboOrig); |
---|
| 1094 | |
---|
[3559] | 1095 | sprintf(tmpFileName + length, "/image%d.ppm", i); |
---|
[4881] | 1096 | result = ppmWriteToFile(tmpFileName, NanoVis::screenBuffer, |
---|
| 1097 | width, height); |
---|
| 1098 | if (!result) { |
---|
[3559] | 1099 | break; |
---|
| 1100 | } |
---|
[1429] | 1101 | } |
---|
[4881] | 1102 | if (width != oldWidth || |
---|
| 1103 | height != oldHeight) { |
---|
[3559] | 1104 | NanoVis::resizeOffscreenBuffer(oldWidth, oldHeight); |
---|
| 1105 | } |
---|
| 1106 | tmpFileName[length] = '\0'; |
---|
[3577] | 1107 | NanoVis::resetFlows(); |
---|
[3559] | 1108 | return result; |
---|
| 1109 | } |
---|
[1522] | 1110 | |
---|
[3559] | 1111 | static int |
---|
| 1112 | MakeMovie(Tcl_Interp *interp, char *tmpFileName, const char *token, |
---|
| 1113 | FlowVideoSwitches *switchesPtr) |
---|
| 1114 | { |
---|
[4904] | 1115 | char cmd[BUFSIZ]; |
---|
| 1116 | #ifdef HAVE_AVCONV |
---|
| 1117 | /* Generate the movie from the frame images by exec-ing avconv */ |
---|
| 1118 | /* The avconv command is |
---|
| 1119 | * avconv -f image2 -i /var/tmp/xxxxx/image%d.ppm \ |
---|
| 1120 | * -f outformat -b bitrate -r framerate /var/tmp/xxxxx/movie.mpeg |
---|
| 1121 | */ |
---|
| 1122 | #ifndef AVCONV |
---|
| 1123 | # define AVCONV "/usr/bin/avconv" |
---|
[3559] | 1124 | #endif |
---|
[4904] | 1125 | sprintf(cmd, "%s -f image2 -i %s/image%%d.ppm -f %s -b %d -r %f -", |
---|
| 1126 | AVCONV, tmpFileName, Tcl_GetString(switchesPtr->formatObjPtr), |
---|
| 1127 | switchesPtr->bitRate, switchesPtr->frameRate); |
---|
| 1128 | #else |
---|
[3559] | 1129 | /* Generate the movie from the frame images by exec-ing ffmpeg */ |
---|
| 1130 | /* The ffmpeg command is |
---|
| 1131 | * ffmpeg -f image2 -i /var/tmp/xxxxx/image%d.ppm \ |
---|
| 1132 | * -b bitrate -f framerate /var/tmp/xxxxx/movie.mpeg |
---|
| 1133 | */ |
---|
[4904] | 1134 | #ifndef FFMPEG |
---|
| 1135 | # define FFMPEG "/usr/bin/ffmpeg" |
---|
| 1136 | #endif |
---|
[3579] | 1137 | sprintf(cmd, "%s -f image2 -i %s/image%%d.ppm -f %s -b %d -r %f -", |
---|
[3559] | 1138 | FFMPEG, tmpFileName, Tcl_GetString(switchesPtr->formatObjPtr), |
---|
| 1139 | switchesPtr->bitRate, switchesPtr->frameRate); |
---|
[4904] | 1140 | #endif |
---|
[3578] | 1141 | TRACE("Enter: %s", cmd); |
---|
[4881] | 1142 | FILE *f = popen(cmd, "r"); |
---|
[3559] | 1143 | if (f == NULL) { |
---|
| 1144 | Tcl_AppendResult(interp, "can't run ffmpeg: ", |
---|
| 1145 | Tcl_PosixError(interp), (char *)NULL); |
---|
| 1146 | return TCL_ERROR; |
---|
| 1147 | } |
---|
| 1148 | Rappture::Buffer data; |
---|
| 1149 | size_t total = 0; |
---|
| 1150 | for (;;) { |
---|
| 1151 | char buffer[BUFSIZ]; |
---|
| 1152 | |
---|
[4881] | 1153 | ssize_t numRead = fread(buffer, sizeof(unsigned char), BUFSIZ, f); |
---|
[3559] | 1154 | total += numRead; |
---|
| 1155 | if (numRead == 0) { // EOF |
---|
| 1156 | break; |
---|
| 1157 | } |
---|
| 1158 | if (numRead < 0) { // Error |
---|
[3578] | 1159 | ERROR("Can't read movie data: %s", |
---|
[3559] | 1160 | Tcl_PosixError(interp)); |
---|
| 1161 | Tcl_AppendResult(interp, "can't read movie data: ", |
---|
| 1162 | Tcl_PosixError(interp), (char *)NULL); |
---|
[2875] | 1163 | return TCL_ERROR; |
---|
| 1164 | } |
---|
[3559] | 1165 | if (!data.append(buffer, numRead)) { |
---|
[3578] | 1166 | ERROR("Can't append movie data to buffer %d bytes", |
---|
[3559] | 1167 | numRead); |
---|
| 1168 | Tcl_AppendResult(interp, "can't append movie data to buffer", |
---|
| 1169 | (char *)NULL); |
---|
| 1170 | return TCL_ERROR; |
---|
| 1171 | } |
---|
| 1172 | } |
---|
[3578] | 1173 | if (data.size() == 0) { |
---|
| 1174 | ERROR("ffmpeg returned 0 bytes"); |
---|
| 1175 | } |
---|
[3584] | 1176 | // Send zero length to client so it can deal with error |
---|
| 1177 | sprintf(cmd,"nv>image -type movie -token \"%s\" -bytes %lu\n", |
---|
| 1178 | token, (unsigned long)data.size()); |
---|
[4874] | 1179 | nv::sendDataToClient(cmd, data.bytes(), data.size()); |
---|
[3584] | 1180 | return TCL_OK; |
---|
[3559] | 1181 | } |
---|
[1429] | 1182 | |
---|
[3559] | 1183 | static int |
---|
| 1184 | FlowVideoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
| 1185 | Tcl_Obj *const *objv) |
---|
| 1186 | { |
---|
| 1187 | FlowVideoSwitches switches; |
---|
| 1188 | const char *token; |
---|
| 1189 | |
---|
| 1190 | token = Tcl_GetString(objv[2]); |
---|
| 1191 | switches.frameRate = 25.0f; // Default frame rate 25 fps |
---|
| 1192 | switches.bitRate = 6000000; // Default video bit rate. |
---|
| 1193 | switches.width = NanoVis::winWidth; |
---|
| 1194 | switches.height = NanoVis::winHeight; |
---|
| 1195 | switches.numFrames = 100; |
---|
| 1196 | switches.formatObjPtr = Tcl_NewStringObj("mpeg1video", 10); |
---|
| 1197 | Tcl_IncrRefCount(switches.formatObjPtr); |
---|
[4893] | 1198 | if (ParseSwitches(interp, flowVideoSwitches, |
---|
[3559] | 1199 | objc - 3, objv + 3, &switches, SWITCH_DEFAULTS) < 0) { |
---|
| 1200 | return TCL_ERROR; |
---|
[1429] | 1201 | } |
---|
[3559] | 1202 | if ((switches.width < 0) || (switches.width > SHRT_MAX) || |
---|
| 1203 | (switches.height < 0) || (switches.height > SHRT_MAX)) { |
---|
| 1204 | Tcl_AppendResult(interp, "bad dimensions for video", (char *)NULL); |
---|
| 1205 | return TCL_ERROR; |
---|
[1501] | 1206 | } |
---|
[3559] | 1207 | if ((switches.frameRate < 0.0f) || (switches.frameRate > 30.0f)) { |
---|
| 1208 | Tcl_AppendResult(interp, "bad frame rate.", (char *)NULL); |
---|
[2875] | 1209 | return TCL_ERROR; |
---|
[1429] | 1210 | } |
---|
[3559] | 1211 | if (switches.bitRate < 0) { |
---|
| 1212 | Tcl_AppendResult(interp, "bad bit rate.", (char *)NULL); |
---|
| 1213 | return TCL_ERROR; |
---|
| 1214 | } |
---|
| 1215 | if (NanoVis::licRenderer == NULL) { |
---|
| 1216 | Tcl_AppendResult(interp, "no lic renderer.", (char *)NULL); |
---|
| 1217 | return TCL_ERROR; |
---|
| 1218 | } |
---|
| 1219 | TRACE("FLOW started"); |
---|
| 1220 | |
---|
| 1221 | char *tmpFileName; |
---|
| 1222 | char nameTemplate[200]; |
---|
| 1223 | strcpy(nameTemplate,"/var/tmp/flowXXXXXX"); |
---|
| 1224 | tmpFileName = mkdtemp(nameTemplate); |
---|
| 1225 | int result = TCL_OK; |
---|
| 1226 | if (tmpFileName == NULL) { |
---|
| 1227 | Tcl_AppendResult(interp, "can't create temporary directory \"", |
---|
| 1228 | nameTemplate, "\" for frame image files: ", |
---|
| 1229 | Tcl_PosixError(interp), (char *)NULL); |
---|
| 1230 | return TCL_ERROR; |
---|
| 1231 | } |
---|
| 1232 | size_t length = strlen(tmpFileName); |
---|
| 1233 | bool canceled = false; |
---|
[4881] | 1234 | if (MakeImageFiles(tmpFileName, |
---|
| 1235 | switches.width, switches.height, switches.numFrames, |
---|
| 1236 | &canceled)) { |
---|
| 1237 | result = TCL_OK; |
---|
| 1238 | } else { |
---|
| 1239 | result = TCL_ERROR; |
---|
| 1240 | } |
---|
[3559] | 1241 | if ((result == TCL_OK) && (!canceled)) { |
---|
| 1242 | result = MakeMovie(interp, tmpFileName, token, &switches); |
---|
| 1243 | } |
---|
| 1244 | for (int i = 1; i <= switches.numFrames; i++) { |
---|
| 1245 | sprintf(tmpFileName + length, "/image%d.ppm", i); |
---|
| 1246 | unlink(tmpFileName); |
---|
[4831] | 1247 | } |
---|
[3559] | 1248 | tmpFileName[length] = '\0'; |
---|
| 1249 | rmdir(tmpFileName); |
---|
[4893] | 1250 | FreeSwitches(flowVideoSwitches, &switches, 0); |
---|
[3559] | 1251 | return result; |
---|
[1429] | 1252 | } |
---|
[2070] | 1253 | #else |
---|
[2875] | 1254 | /** |
---|
| 1255 | * Not implemented |
---|
| 1256 | */ |
---|
[2070] | 1257 | static int |
---|
| 1258 | FlowVideoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 1259 | Tcl_Obj *const *objv) |
---|
[2070] | 1260 | { |
---|
[2875] | 1261 | return TCL_OK; |
---|
[2070] | 1262 | } |
---|
[2875] | 1263 | #endif /* HAVE_FFMPEG */ |
---|
[1429] | 1264 | |
---|
[4893] | 1265 | static CmdSpec flowCmdOps[] = { |
---|
[1429] | 1266 | {"add", 1, FlowAddOp, 3, 0, "name ?option value...?",}, |
---|
[3567] | 1267 | {"delete", 1, FlowDeleteOp, 3, 0, "name ?name...?",}, |
---|
[1431] | 1268 | {"exists", 1, FlowExistsOp, 3, 3, "name",}, |
---|
[1467] | 1269 | {"goto", 1, FlowGotoOp, 3, 3, "nSteps",}, |
---|
[3567] | 1270 | {"names", 1, FlowNamesOp, 2, 2, "",}, |
---|
[1429] | 1271 | {"next", 2, FlowNextOp, 2, 2, "",}, |
---|
| 1272 | {"reset", 1, FlowResetOp, 2, 2, "",}, |
---|
[1517] | 1273 | {"video", 1, FlowVideoOp, 3, 0, "token ?switches...?",}, |
---|
[1429] | 1274 | }; |
---|
| 1275 | static int nFlowCmdOps = NumCmdSpecs(flowCmdOps); |
---|
| 1276 | |
---|
| 1277 | static int |
---|
| 1278 | FlowCmdProc(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
[2875] | 1279 | Tcl_Obj *const *objv) |
---|
[1429] | 1280 | { |
---|
| 1281 | Tcl_ObjCmdProc *proc; |
---|
| 1282 | |
---|
[4893] | 1283 | proc = GetOpFromObj(interp, nFlowCmdOps, flowCmdOps, |
---|
| 1284 | CMDSPEC_ARG1, objc, objv, 0); |
---|
[1429] | 1285 | if (proc == NULL) { |
---|
[2875] | 1286 | return TCL_ERROR; |
---|
[1429] | 1287 | } |
---|
| 1288 | return (*proc) (clientData, interp, objc, objv); |
---|
| 1289 | } |
---|
| 1290 | |
---|
[2875] | 1291 | /** |
---|
[3567] | 1292 | *\brief This procedure is invoked to initialize the "flow" command. |
---|
[1429] | 1293 | * |
---|
| 1294 | * Side effects: |
---|
[2875] | 1295 | * Creates the new command and adds a new entry into a global Tcl |
---|
| 1296 | * associative array. |
---|
[1429] | 1297 | */ |
---|
[4874] | 1298 | void |
---|
| 1299 | nv::FlowCmdInitProc(Tcl_Interp *interp, ClientData clientData) |
---|
[1429] | 1300 | { |
---|
[4874] | 1301 | Tcl_CreateObjCommand(interp, "flow", FlowCmdProc, clientData, NULL); |
---|
[1429] | 1302 | } |
---|