156 lines
4.5 KiB
C++
156 lines
4.5 KiB
C++
// Filename: lwoInputFile.cxx
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// Created by: drose (24Apr01)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#include "lwoInputFile.h"
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#include "lwoBoundingBox.h"
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#include "lwoClip.h"
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#include "lwoDiscontinuousVertexMap.h"
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#include "lwoHeader.h"
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#include "lwoLayer.h"
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#include "lwoPoints.h"
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#include "lwoPolygons.h"
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#include "lwoPolygonTags.h"
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#include "lwoTags.h"
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#include "lwoSurface.h"
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#include "lwoVertexMap.h"
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TypeHandle LwoInputFile::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: LwoInputFile::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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LwoInputFile::
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LwoInputFile() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: LwoInputFile::Destructor
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// Access: Public, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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LwoInputFile::
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~LwoInputFile() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: LwoInputFile::get_vx
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// Access: Public
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// Description: Reads a Lightwave variable-length index. This is
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// either a 2-byte or 4-byte integer.
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////////////////////////////////////////////////////////////////////
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int LwoInputFile::
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get_vx() {
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PN_uint16 top = get_be_uint16();
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if ((top & 0xff00) == 0xff00) {
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// The first byte is 0xff, which indicates we have a 4-byte
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// integer.
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PN_uint16 bottom = get_be_uint16();
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return ((int)(top & 0xff) << 16) | bottom;
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}
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// The first byte is not 0xff, which indicates we have a 2-byte
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// integer.
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return top;
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}
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////////////////////////////////////////////////////////////////////
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// Function: LwoInputFile::get_vec3
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// Access: Public
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// Description: Reads a three-component vector of floats.
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////////////////////////////////////////////////////////////////////
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LVecBase3f LwoInputFile::
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get_vec3() {
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LVecBase3f result;
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result[0] = get_be_float32();
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result[1] = get_be_float32();
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result[2] = get_be_float32();
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return result;
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}
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////////////////////////////////////////////////////////////////////
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// Function: LwoInputFile::get_filename
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// Access: Public
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// Description: Reads a Lightwave platform-neutral filename and
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// converts it to a Panda platform-neutral filename.
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////////////////////////////////////////////////////////////////////
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Filename LwoInputFile::
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get_filename() {
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string name = get_string();
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size_t colon = name.find(':');
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if (colon == string::npos) {
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// No colon; it's just a relative path.
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return Filename(name);
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}
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// The colon separates the device and the path.
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string device = name.substr(0, colon);
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string path = name.substr(colon + 1);
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nout << "Ignoring filename device " << device << "\n";
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return Filename("/", path);
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}
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////////////////////////////////////////////////////////////////////
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// Function: LwoInputFile::make_new_chunk
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// Access: Protected, Virtual
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// Description: Allocates and returns a new chunk of the appropriate
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// type based on the given ID.
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////////////////////////////////////////////////////////////////////
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IffChunk *LwoInputFile::
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make_new_chunk(IffId id) {
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if (id == IffId("FORM")) {
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return new LwoHeader;
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} else if (id == IffId("LAYR")) {
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return new LwoLayer;
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} else if (id == IffId("PNTS")) {
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return new LwoPoints;
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} else if (id == IffId("VMAP")) {
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return new LwoVertexMap;
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} else if (id == IffId("VMAD")) {
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return new LwoDiscontinuousVertexMap;
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} else if (id == IffId("POLS")) {
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return new LwoPolygons;
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} else if (id == IffId("TAGS") ||
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id == IffId("SRFS")) {
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return new LwoTags;
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} else if (id == IffId("PTAG")) {
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return new LwoPolygonTags;
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} else if (id == IffId("CLIP")) {
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return new LwoClip;
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} else if (id == IffId("SURF")) {
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return new LwoSurface;
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} else if (id == IffId("BBOX")) {
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return new LwoBoundingBox;
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} else {
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return IffInputFile::make_new_chunk(id);
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}
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}
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