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580 lines
21 KiB
C++
580 lines
21 KiB
C++
// Filename: qpgeomVertexArrayFormat.cxx
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// Created by: drose (06Mar05)
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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 "qpgeomVertexFormat.h"
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#include "qpgeomVertexColumn.h"
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#include "qpgeomVertexData.h"
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#include "qpgeomVertexReader.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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#include "indirectLess.h"
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TypeHandle qpGeomVertexArrayFormat::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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qpGeomVertexArrayFormat::
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qpGeomVertexArrayFormat() :
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_is_registered(false),
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_stride(0),
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_total_bytes(0),
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_pad_to(1),
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_columns_unsorted(false)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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qpGeomVertexArrayFormat::
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qpGeomVertexArrayFormat(const InternalName *name0, int num_components0,
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qpGeomVertexColumn::NumericType numeric_type0,
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qpGeomVertexColumn::Contents contents0) :
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_is_registered(false),
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_stride(0),
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_total_bytes(0),
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_pad_to(1),
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_columns_unsorted(false)
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{
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add_column(name0, num_components0, numeric_type0, contents0);
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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qpGeomVertexArrayFormat::
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qpGeomVertexArrayFormat(const InternalName *name0, int num_components0,
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qpGeomVertexColumn::NumericType numeric_type0,
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qpGeomVertexColumn::Contents contents0,
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const InternalName *name1, int num_components1,
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qpGeomVertexColumn::NumericType numeric_type1,
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qpGeomVertexColumn::Contents contents1) :
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_is_registered(false),
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_stride(0),
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_total_bytes(0),
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_pad_to(1),
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_columns_unsorted(false)
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{
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add_column(name0, num_components0, numeric_type0, contents0);
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add_column(name1, num_components1, numeric_type1, contents1);
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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qpGeomVertexArrayFormat::
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qpGeomVertexArrayFormat(const InternalName *name0, int num_components0,
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qpGeomVertexColumn::NumericType numeric_type0,
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qpGeomVertexColumn::Contents contents0,
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const InternalName *name1, int num_components1,
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qpGeomVertexColumn::NumericType numeric_type1,
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qpGeomVertexColumn::Contents contents1,
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const InternalName *name2, int num_components2,
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qpGeomVertexColumn::NumericType numeric_type2,
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qpGeomVertexColumn::Contents contents2) :
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_is_registered(false),
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_stride(0),
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_total_bytes(0),
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_pad_to(1),
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_columns_unsorted(false)
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{
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add_column(name0, num_components0, numeric_type0, contents0);
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add_column(name1, num_components1, numeric_type1, contents1);
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add_column(name2, num_components2, numeric_type2, contents2);
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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qpGeomVertexArrayFormat::
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qpGeomVertexArrayFormat(const InternalName *name0, int num_components0,
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qpGeomVertexColumn::NumericType numeric_type0,
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qpGeomVertexColumn::Contents contents0,
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const InternalName *name1, int num_components1,
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qpGeomVertexColumn::NumericType numeric_type1,
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qpGeomVertexColumn::Contents contents1,
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const InternalName *name2, int num_components2,
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qpGeomVertexColumn::NumericType numeric_type2,
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qpGeomVertexColumn::Contents contents2,
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const InternalName *name3, int num_components3,
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qpGeomVertexColumn::NumericType numeric_type3,
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qpGeomVertexColumn::Contents contents3) :
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_is_registered(false),
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_stride(0),
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_total_bytes(0),
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_pad_to(1),
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_columns_unsorted(false)
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{
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add_column(name0, num_components0, numeric_type0, contents0);
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add_column(name1, num_components1, numeric_type1, contents1);
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add_column(name2, num_components2, numeric_type2, contents2);
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add_column(name3, num_components3, numeric_type3, contents3);
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::Copy Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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qpGeomVertexArrayFormat::
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qpGeomVertexArrayFormat(const qpGeomVertexArrayFormat ©) :
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_is_registered(false),
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_stride(copy._stride),
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_total_bytes(copy._total_bytes),
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_pad_to(copy._pad_to),
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_columns_unsorted(copy._columns_unsorted)
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{
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DataTypes::const_iterator dti;
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for (dti = copy._columns.begin(); dti != copy._columns.end(); ++dti) {
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add_column(*(*dti));
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::Copy Assignment Operator
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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void qpGeomVertexArrayFormat::
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operator = (const qpGeomVertexArrayFormat ©) {
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nassertv(!_is_registered);
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_stride = copy._stride;
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_total_bytes = copy._total_bytes;
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_pad_to = copy._pad_to;
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_columns.clear();
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_columns_by_name.clear();
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_columns_unsorted = false;
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DataTypes::const_iterator dti;
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for (dti = copy._columns.begin(); dti != copy._columns.end(); ++dti) {
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add_column(*(*dti));
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::Destructor
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// Access: Published, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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qpGeomVertexArrayFormat::
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~qpGeomVertexArrayFormat() {
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DataTypes::iterator dti;
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for (dti = _columns.begin(); dti != _columns.end(); ++dti) {
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delete (*dti);
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::add_column
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// Access: Published
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// Description: Adds a new column to the specification. This is a
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// table of per-vertex floating-point numbers such as
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// "vertex" or "normal"; you must specify where in each
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// record the table starts, and how many components
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// (dimensions) exist per vertex.
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//
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// The return value is the index number of the new data
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// type.
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////////////////////////////////////////////////////////////////////
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int qpGeomVertexArrayFormat::
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add_column(const InternalName *name, int num_components,
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qpGeomVertexColumn::NumericType numeric_type,
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qpGeomVertexColumn::Contents contents, int start) {
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if (start < 0) {
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start = _total_bytes;
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qpGeomVertexColumn temp_column
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(name, num_components, numeric_type, contents, 0);
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int pad_to = temp_column.get_component_bytes();
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start = ((start + pad_to - 1) / pad_to) * pad_to;
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}
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return add_column(qpGeomVertexColumn(name, num_components,
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numeric_type, contents, start));
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::add_column
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// Access: Published
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// Description: Adds a new column to the specification. This is a
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// table of per-vertex floating-point numbers such as
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// "vertex" or "normal"; you must specify where in each
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// record the table starts, and how many components
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// (dimensions) exist per vertex.
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//
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// Adding a column with the same name as a previous
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// type, or that overlaps with one or more previous
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// types, quietly removes the previous type(s).
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//
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// The return value is the index number of the new data
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// type.
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////////////////////////////////////////////////////////////////////
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int qpGeomVertexArrayFormat::
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add_column(const qpGeomVertexColumn &column) {
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nassertr(!_is_registered, -1);
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// Make sure there isn't already a column with this name.
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remove_column(column.get_name());
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// Also make sure there aren't any columns that overlap with this
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// one.
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const qpGeomVertexColumn *orig_column = get_column(column.get_start(), column.get_total_bytes());
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while (orig_column != (const qpGeomVertexColumn *)NULL) {
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remove_column(orig_column->get_name());
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orig_column = get_column(column.get_start(), column.get_total_bytes());
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}
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_total_bytes = max(_total_bytes, column.get_start() + column.get_total_bytes());
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_pad_to = max(_pad_to, column.get_component_bytes());
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_stride = max(_stride, ((_total_bytes + _pad_to - 1) / _pad_to) * _pad_to);
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qpGeomVertexColumn *new_column = new qpGeomVertexColumn(column);
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if (!_columns.empty() && *new_column < *_columns.back()) {
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_columns_unsorted = true;
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}
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int new_index = (int)_columns.size();
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_columns.push_back(new_column);
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_columns_by_name.insert(DataTypesByName::value_type(new_column->get_name(), new_column));
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return new_index;
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::remove_column
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// Access: Published
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// Description: Removes the column with the indicated name, if
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// any. This leaves a gap in the byte structure.
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////////////////////////////////////////////////////////////////////
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void qpGeomVertexArrayFormat::
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remove_column(const InternalName *name) {
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nassertv(!_is_registered);
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DataTypesByName::iterator ni;
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ni = _columns_by_name.find(name);
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if (ni != _columns_by_name.end()) {
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qpGeomVertexColumn *column = (*ni).second;
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_columns_by_name.erase(ni);
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DataTypes::iterator dti;
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dti = find(_columns.begin(), _columns.end(), column);
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nassertv(dti != _columns.end());
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_columns.erase(dti);
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delete column;
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// Maybe we just removed the tail column. If that's so, we
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// should recompute _total_bytes to reflect the new tail.
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if (_columns.empty()) {
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_total_bytes = 0;
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} else {
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consider_sort_columns();
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qpGeomVertexColumn *last = _columns.back();
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_total_bytes = last->get_start() + last->get_total_bytes();
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}
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::clear_columns
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// Access: Published
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// Description: Removes all columns previously added, sets the
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// stride to zero, and prepares to start over.
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////////////////////////////////////////////////////////////////////
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void qpGeomVertexArrayFormat::
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clear_columns() {
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_columns.clear();
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_columns_by_name.clear();
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_columns_unsorted = false;
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_stride = 0;
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_total_bytes = 0;
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_pad_to = 1;
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::get_column
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// Access: Published
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// Description: Returns the specification with the indicated name, or
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// NULL if the name is not used.
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////////////////////////////////////////////////////////////////////
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const qpGeomVertexColumn *qpGeomVertexArrayFormat::
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get_column(const InternalName *name) const {
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DataTypesByName::const_iterator ni;
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ni = _columns_by_name.find(name);
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if (ni != _columns_by_name.end()) {
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return (*ni).second;
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}
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return NULL;
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::get_column
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// Access: Published
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// Description: Returns the first specification that overlaps with
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// any of the indicated bytes in the range, or NULL if
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// none do.
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////////////////////////////////////////////////////////////////////
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const qpGeomVertexColumn *qpGeomVertexArrayFormat::
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get_column(int start_byte, int num_bytes) const {
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consider_sort_columns();
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DataTypes::const_iterator dti;
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for (dti = _columns.begin(); dti != _columns.end(); ++dti) {
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const qpGeomVertexColumn *column = (*dti);
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if (column->overlaps_with(start_byte, num_bytes)) {
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return column;
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}
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}
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return NULL;
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::is_data_subset_of
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// Access: Published
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// Description: Returns true if all of the fields in this array
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// format are also present and equivalent in the other
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// array format, and in the same byte positions, and the
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// stride is the same. That is, true if this format can
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// share the same data pointer as the other format (with
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// possibly some unused gaps).
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////////////////////////////////////////////////////////////////////
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bool qpGeomVertexArrayFormat::
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is_data_subset_of(const qpGeomVertexArrayFormat &other) const {
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if (_columns.size() > other._columns.size() ||
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get_stride() != other.get_stride()) {
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return false;
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}
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consider_sort_columns();
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other.consider_sort_columns();
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size_t i = 0;
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size_t j = 0;
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while (i < _columns.size() && j < other._columns.size()) {
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if (*_columns[i] == *other._columns[j]) {
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++i;
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}
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++j;
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}
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// If we reached the end of our list, all fields matched.
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return (i == _columns.size());
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::output
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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void qpGeomVertexArrayFormat::
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output(ostream &out) const {
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DataTypes::const_iterator dti;
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out << "[";
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for (dti = _columns.begin(); dti != _columns.end(); ++dti) {
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const qpGeomVertexColumn *column = (*dti);
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out << " " << *column;
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}
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out << " ]";
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::write
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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void qpGeomVertexArrayFormat::
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write(ostream &out, int indent_level) const {
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indent(out, indent_level)
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<< "Array format (stride = " << get_stride() << "):\n";
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consider_sort_columns();
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DataTypes::const_iterator dti;
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for (dti = _columns.begin(); dti != _columns.end(); ++dti) {
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const qpGeomVertexColumn *column = (*dti);
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indent(out, indent_level + 2)
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<< *column << " start at " << column->get_start() << "\n";
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::write_with_data
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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void qpGeomVertexArrayFormat::
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write_with_data(ostream &out, int indent_level,
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const qpGeomVertexData *data, int array_index) const {
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consider_sort_columns();
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int num_vertices = data->get_num_vertices();
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qpGeomVertexReader reader(data);
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for (int i = 0; i < num_vertices; i++) {
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indent(out, indent_level)
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<< "vertex index " << i << ":\n";
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reader.set_vertex(i);
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DataTypes::const_iterator dti;
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for (dti = _columns.begin(); dti != _columns.end(); ++dti) {
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const qpGeomVertexColumn *column = (*dti);
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int num_values = min(column->get_num_values(), 4);
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reader.set_column(array_index, column);
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const LVecBase4f &d = reader.get_data4f();
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indent(out, indent_level + 2)
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<< *column->get_name();
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for (int v = 0; v < num_values; v++) {
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out << " " << d[v];
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}
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out << "\n";
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}
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::compare_to
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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int qpGeomVertexArrayFormat::
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compare_to(const qpGeomVertexArrayFormat &other) const {
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if (_stride != other._stride) {
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return _stride - other._stride;
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}
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if (_total_bytes != other._total_bytes) {
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return _total_bytes - other._total_bytes;
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}
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if (_pad_to != other._pad_to) {
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return _pad_to - other._pad_to;
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}
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if (_columns.size() != other._columns.size()) {
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return (int)_columns.size() - (int)other._columns.size();
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}
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consider_sort_columns();
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other.consider_sort_columns();
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for (size_t i = 0; i < _columns.size(); i++) {
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int compare = _columns[i]->compare_to(*other._columns[i]);
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if (compare != 0) {
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return compare;
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}
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}
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return 0;
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::sort_columns
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// Access: Private
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// Description: Resorts the _columns vector so that the columns
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// are listed in the same order they appear in the
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// record.
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////////////////////////////////////////////////////////////////////
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void qpGeomVertexArrayFormat::
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sort_columns() {
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sort(_columns.begin(), _columns.end(), IndirectLess<qpGeomVertexColumn>());
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::do_register
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// Access: Private
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// Description: Called internally when the format is registered.
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////////////////////////////////////////////////////////////////////
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void qpGeomVertexArrayFormat::
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do_register() {
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nassertv(!_is_registered);
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_is_registered = true;
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}
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::register_with_read_factory
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// Access: Public, Static
|
|
// Description: Tells the BamReader how to create objects of type
|
|
// qpGeomVertexArrayFormat.
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|
////////////////////////////////////////////////////////////////////
|
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void qpGeomVertexArrayFormat::
|
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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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}
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|
|
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////////////////////////////////////////////////////////////////////
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// Function: qpGeomVertexArrayFormat::write_datagram
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// Access: Public, Virtual
|
|
// Description: Writes the contents of this object to the datagram
|
|
// for shipping out to a Bam file.
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|
////////////////////////////////////////////////////////////////////
|
|
void qpGeomVertexArrayFormat::
|
|
write_datagram(BamWriter *manager, Datagram &dg) {
|
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TypedWritableReferenceCount::write_datagram(manager, dg);
|
|
}
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|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: qpGeomVertexArrayFormat::complete_pointers
|
|
// Access: Public, Virtual
|
|
// Description: Receives an array of pointers, one for each time
|
|
// manager->read_pointer() was called in fillin().
|
|
// Returns the number of pointers processed.
|
|
////////////////////////////////////////////////////////////////////
|
|
int qpGeomVertexArrayFormat::
|
|
complete_pointers(TypedWritable **p_list, BamReader *manager) {
|
|
int pi = TypedWritableReferenceCount::complete_pointers(p_list, manager);
|
|
|
|
return pi;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: qpGeomVertexArrayFormat::make_from_bam
|
|
// Access: Protected, Static
|
|
// Description: This function is called by the BamReader's factory
|
|
// when a new object of type qpGeomVertexArrayFormat is
|
|
// encountered in the Bam file. It should create the
|
|
// qpGeomVertexArrayFormat and extract its information from
|
|
// the file.
|
|
////////////////////////////////////////////////////////////////////
|
|
TypedWritable *qpGeomVertexArrayFormat::
|
|
make_from_bam(const FactoryParams ¶ms) {
|
|
qpGeomVertexArrayFormat *object = new qpGeomVertexArrayFormat;
|
|
DatagramIterator scan;
|
|
BamReader *manager;
|
|
|
|
parse_params(params, scan, manager);
|
|
object->fillin(scan, manager);
|
|
|
|
return object;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: qpGeomVertexArrayFormat::fillin
|
|
// Access: Protected
|
|
// Description: This internal function is called by make_from_bam to
|
|
// read in all of the relevant data from the BamFile for
|
|
// the new qpGeomVertexArrayFormat.
|
|
////////////////////////////////////////////////////////////////////
|
|
void qpGeomVertexArrayFormat::
|
|
fillin(DatagramIterator &scan, BamReader *manager) {
|
|
TypedWritableReferenceCount::fillin(scan, manager);
|
|
}
|