331 lines
12 KiB
C++
331 lines
12 KiB
C++
// Filename: transformBlendTable.cxx
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// Created by: drose (24Mar05)
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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 "transformBlendTable.h"
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#include "indent.h"
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#include "bamReader.h"
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#include "bamWriter.h"
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TypeHandle TransformBlendTable::_type_handle;
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TypeHandle TransformBlendTable::_palette_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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TransformBlendTable::
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TransformBlendTable() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::Copy Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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TransformBlendTable::
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TransformBlendTable(const TransformBlendTable ©) :
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_blends(copy._blends)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::Copy Assignment Operator
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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operator = (const TransformBlendTable ©) {
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_blends = copy._blends;
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clear_index();
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::Destructor
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// Access: Published, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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TransformBlendTable::
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~TransformBlendTable() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::set_blend
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// Access: Published
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// Description: Replaces the blend at the nth position with the
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// indicated value.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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set_blend(int n, const TransformBlend &blend) {
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nassertv(n >= 0 && n < (int)_blends.size());
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_blends[n] = blend;
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::remove_blend
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// Access: Published
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// Description: Removes the blend at the nth position.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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remove_blend(int n) {
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nassertv(n >= 0 && n < (int)_blends.size());
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_blends.erase(_blends.begin() + n);
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::add_blend
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// Access: Published
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// Description: Adds a new blend to the table, and returns its
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// index number. If there is already an identical blend
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// in the table, simply returns that number instead.
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////////////////////////////////////////////////////////////////////
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int TransformBlendTable::
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add_blend(const TransformBlend &blend) {
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consider_rebuild_index();
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BlendIndex::iterator bi;
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bi = _blend_index.find(&blend);
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if (bi != _blend_index.end()) {
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// Already had it.
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return (*bi).second;
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}
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int new_position = (int)_blends.size();
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_blends.push_back(blend);
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clear_index();
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return new_position;
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::write
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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write(ostream &out, int indent_level) const {
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for (int i = 0; i < (int)_blends.size(); i++) {
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indent(out, indent_level)
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<< i << ". " << _blends[i] << "\n";
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::clear_index
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// Access: Private
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// Description: Resets the index so that it will be rebuilt next time
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// it is needed.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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clear_index() {
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_blend_index.clear();
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::rebuild_index
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// Access: Private
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// Description: Rebuilds the index so that we can easily determine
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// what blend combinations are already present in the
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// table.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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rebuild_index() {
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_blend_index.clear();
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// We'll also count up these two statistics while we rebuild the
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// index.
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_num_transforms = 0;
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_max_simultaneous_transforms = 0;
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pset<const VertexTransform *> transforms;
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for (int i = 0; i < (int)_blends.size(); ++i) {
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const TransformBlend &blend = _blends[i];
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_blend_index[&blend] = i;
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for (int ti = 0; ti < blend.get_num_transforms(); ++ti) {
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transforms.insert(blend.get_transform(ti));
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}
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_max_simultaneous_transforms = max(_max_simultaneous_transforms,
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blend.get_num_transforms());
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}
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_num_transforms = transforms.size();
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::recompute_modified
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// Access: Private
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// Description: Recomputes the modified stamp from the various
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// TransformBlend objects, if necessary.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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recompute_modified(TransformBlendTable::CDWriter &cdata) {
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// Update the global_modified sequence number first, to prevent race
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// conditions.
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cdata->_global_modified = VertexTransform::get_global_modified();
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// Now get the local modified number.
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UpdateSeq seq;
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Blends::const_iterator bi;
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for (bi = _blends.begin(); bi != _blends.end(); ++bi) {
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seq = max(seq, (*bi).get_modified());
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}
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cdata->_modified = seq;
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::clear_modified
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// Access: Private
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// Description: Clears the modified stamp to force it to be
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// recomputed.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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clear_modified() {
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CDWriter cdata(_cycler);
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cdata->_global_modified = UpdateSeq();
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cdata->_modified = UpdateSeq();
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::register_with_read_factory
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// Access: Public, Static
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// Description: Tells the BamReader how to create objects of type
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// TransformBlendTable.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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register_with_read_factory() {
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BamReader::get_factory()->register_factory(get_class_type(), make_from_bam);
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BamReader::get_factory()->register_factory(_palette_type_handle, make_from_bam);
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::write_datagram
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// Access: Public, Virtual
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// Description: Writes the contents of this object to the datagram
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// for shipping out to a Bam file.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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write_datagram(BamWriter *manager, Datagram &dg) {
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TypedWritable::write_datagram(manager, dg);
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dg.add_uint16(_blends.size());
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Blends::const_iterator bi;
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for (bi = _blends.begin(); bi != _blends.end(); ++bi) {
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(*bi).write_datagram(manager, dg);
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}
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manager->write_cdata(dg, _cycler);
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::complete_pointers
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// Access: Public, Virtual
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// Description: Receives an array of pointers, one for each time
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// manager->read_pointer() was called in fillin().
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// Returns the number of pointers processed.
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////////////////////////////////////////////////////////////////////
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int TransformBlendTable::
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complete_pointers(TypedWritable **p_list, BamReader *manager) {
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int pi = TypedWritable::complete_pointers(p_list, manager);
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Blends::iterator bi;
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for (bi = _blends.begin(); bi != _blends.end(); ++bi) {
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pi += (*bi).complete_pointers(p_list + pi, manager);
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}
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return pi;
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::make_from_bam
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// Access: Protected, Static
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// Description: This function is called by the BamReader's factory
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// when a new object of type TransformBlendTable is encountered
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// in the Bam file. It should create the TransformBlendTable
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// and extract its information from the file.
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////////////////////////////////////////////////////////////////////
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TypedWritable *TransformBlendTable::
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make_from_bam(const FactoryParams ¶ms) {
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TransformBlendTable *object = new TransformBlendTable;
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DatagramIterator scan;
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BamReader *manager;
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parse_params(params, scan, manager);
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object->fillin(scan, manager);
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return object;
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::fillin
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// Access: Protected
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// Description: This internal function is called by make_from_bam to
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// read in all of the relevant data from the BamFile for
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// the new TransformBlendTable.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::
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fillin(DatagramIterator &scan, BamReader *manager) {
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TypedWritable::fillin(scan, manager);
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size_t num_blends = scan.get_uint16();
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_blends.reserve(num_blends);
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size_t i;
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for (i = 0; i < num_blends; ++i) {
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TransformBlend blend;
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blend.fillin(scan, manager);
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_blends.push_back(blend);
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}
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manager->read_cdata(scan, _cycler);
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::CData::make_copy
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// Access: Public, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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CycleData *TransformBlendTable::CData::
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make_copy() const {
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return new CData(*this);
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::CData::write_datagram
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// Access: Public, Virtual
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// Description: Writes the contents of this object to the datagram
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// for shipping out to a Bam file.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::CData::
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write_datagram(BamWriter *manager, Datagram &dg) const {
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}
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////////////////////////////////////////////////////////////////////
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// Function: TransformBlendTable::CData::fillin
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// Access: Public, Virtual
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// Description: This internal function is called by make_from_bam to
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// read in all of the relevant data from the BamFile for
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// the new TransformBlendTable.
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////////////////////////////////////////////////////////////////////
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void TransformBlendTable::CData::
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fillin(DatagramIterator &scan, BamReader *manager) {
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_modified = VertexTransform::get_next_modified();
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_global_modified = VertexTransform::get_global_modified();
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}
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