open_toontown_panda3d/panda/src/gobj/geomVertexWriter.I

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// Filename: geomVertexWriter.I
// Created by: drose (25Mar05)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
//
// All use of this software is subject to the terms of the Panda 3d
// Software license. You should have received a copy of this license
// along with this source code; you will also find a current copy of
// the license at http://etc.cmu.edu/panda3d/docs/license/ .
//
// To contact the maintainers of this program write to
// panda3d-general@lists.sourceforge.net .
//
////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Default Constructor
// Access: Published
// Description: Constructs an invalid GeomVertexWriter. You must use
// the assignment operator to assign a valid
// GeomVertexWriter to this object before you can use
// it.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexWriter::
GeomVertexWriter(Thread *current_thread) :
_vertex_data(NULL),
_current_thread(current_thread)
{
initialize();
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Constructor
// Access: Published
// Description: Constructs a new writer to process the vertices of
// the indicated data object.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexWriter::
GeomVertexWriter(GeomVertexData *vertex_data, Thread *current_thread) :
_vertex_data(vertex_data),
_current_thread(current_thread)
{
initialize();
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Constructor
// Access: Published
// Description: Constructs a new writer to process the vertices of
// the indicated data object. This flavor creates the
// writer specifically to process the named data type.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexWriter::
GeomVertexWriter(GeomVertexData *vertex_data, const string &name,
Thread *current_thread) :
_vertex_data(vertex_data),
_current_thread(current_thread)
{
initialize();
set_column(name);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Constructor
// Access: Published
// Description: Constructs a new writer to process the vertices of
// the indicated data object. This flavor creates the
// writer specifically to process the named data type.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexWriter::
GeomVertexWriter(GeomVertexData *vertex_data, const InternalName *name,
Thread *current_thread) :
_vertex_data(vertex_data),
_current_thread(current_thread)
{
initialize();
set_column(name);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Constructor
// Access: Published
// Description: Constructs a new writer to process the vertices of
// the indicated array only.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexWriter::
GeomVertexWriter(GeomVertexArrayData *array_data,
Thread *current_thread) :
_array_data(array_data),
_current_thread(current_thread)
{
initialize();
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Constructor
// Access: Published
// Description: Constructs a new writer to process the vertices of
// the indicated array only.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexWriter::
GeomVertexWriter(GeomVertexArrayData *array_data, int column,
Thread *current_thread) :
_array_data(array_data),
_current_thread(current_thread)
{
initialize();
set_column(column);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Constructor
// Access: Public
// Description: Constructs a new writer to process the vertices of
// the indicated data object. This flavor creates the
// writer specifically to process the named data type.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexWriter::
GeomVertexWriter(GeomVertexDataPipelineWriter *data_writer,
const InternalName *name) :
_vertex_data(data_writer->get_object()),
_current_thread(data_writer->get_current_thread())
{
initialize();
const GeomVertexFormat *format = data_writer->get_format();
set_vertex_column(format->get_array_with(name),
format->get_column(name),
data_writer);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Copy Constructor
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
INLINE GeomVertexWriter::
GeomVertexWriter(const GeomVertexWriter &copy) :
_vertex_data(copy._vertex_data),
_array(copy._array),
_array_data(copy._array_data),
_current_thread(copy._current_thread),
_packer(copy._packer),
_stride(copy._stride),
_handle(copy._handle),
_pointer_begin(copy._pointer_begin),
_pointer_end(copy._pointer_end),
_pointer(copy._pointer),
_start_row(copy._start_row)
{
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Copy Assignment Operator
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
operator = (const GeomVertexWriter &copy) {
_vertex_data = copy._vertex_data;
_array = copy._array;
_array_data = copy._array_data;
_current_thread = copy._current_thread;
_packer = copy._packer;
_stride = copy._stride;
_handle = copy._handle;
_pointer_begin = copy._pointer_begin;
_pointer_end = copy._pointer_end;
_pointer = copy._pointer;
_start_row = copy._start_row;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::Destructor
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
INLINE GeomVertexWriter::
~GeomVertexWriter() {
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::get_vertex_data
// Access: Published
// Description: Returns the vertex data object that the
// writer is processing. This may return NULL if the
// writer was constructed with just an array pointer.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexData *GeomVertexWriter::
get_vertex_data() const {
return _vertex_data;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::get_array_data
// Access: Published
// Description: Returns the particular array object that the
// writer is currently processing.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexArrayData *GeomVertexWriter::
get_array_data() const {
return _array_data;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::get_current_thread
// Access: Published
// Description: Returns the Thread pointer of the currently-executing
// thread, as passed to the constructor of this object.
////////////////////////////////////////////////////////////////////
INLINE Thread *GeomVertexWriter::
get_current_thread() const {
return _current_thread;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_column
// Access: Published
// Description: Sets up the writer to use the nth data type of the
// GeomVertexFormat, numbering from 0.
//
// This also resets the write row number to the start
// row (the same value passed to a previous call to
// set_row(), or 0 if set_row() was never called.)
//
// The return value is true if the data type is valid,
// false otherwise.
////////////////////////////////////////////////////////////////////
INLINE bool GeomVertexWriter::
set_column(int column) {
if (_vertex_data != (GeomVertexData *)NULL) {
GeomVertexDataPipelineWriter writer(_vertex_data, true, _current_thread);
writer.check_array_writers();
const GeomVertexFormat *format = writer.get_format();
return set_vertex_column(format->get_array_with(column),
format->get_column(column),
&writer);
}
if (_array_data != (GeomVertexArrayData *)NULL) {
return set_array_column(_array_data->get_array_format()->get_column(column));
}
return false;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_column
// Access: Published
// Description: Sets up the writer to use the data type with the
// indicated name.
//
// This also resets the write row number to the start
// row (the same value passed to a previous call to
// set_row(), or 0 if set_row() was never called.)
//
// The return value is true if the data type is valid,
// false otherwise.
////////////////////////////////////////////////////////////////////
INLINE bool GeomVertexWriter::
set_column(const string &name) {
return set_column(InternalName::make(name));
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_column
// Access: Published
// Description: Sets up the writer to use the data type with the
// indicated name.
//
// This also resets the write number to the start row
// (the same value passed to a previous call to
// set_row(), or 0 if set_row() was never called.)
//
// The return value is true if the data type is valid,
// false otherwise.
////////////////////////////////////////////////////////////////////
INLINE bool GeomVertexWriter::
set_column(const InternalName *name) {
if (_vertex_data != (GeomVertexData *)NULL) {
GeomVertexDataPipelineWriter writer(_vertex_data, true, _current_thread);
writer.check_array_writers();
const GeomVertexFormat *format = writer.get_format();
return set_vertex_column(format->get_array_with(name),
format->get_column(name),
&writer);
}
if (_array_data != (GeomVertexArrayData *)NULL) {
return set_array_column(_array_data->get_array_format()->get_column(name));
}
return false;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::has_column
// Access: Published
// Description: Returns true if a valid data type has been
// successfully set, or false if the data type does not
// exist.
////////////////////////////////////////////////////////////////////
INLINE bool GeomVertexWriter::
has_column() const {
return (_packer != (GeomVertexColumn::Packer *)NULL);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::get_array
// Access: Published
// Description: Returns the array index containing the data type that
// the writer is working on.
////////////////////////////////////////////////////////////////////
INLINE int GeomVertexWriter::
get_array() const {
return _array;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::get_column
// Access: Published
// Description: Returns the description of the data type that the
// writer is working on.
////////////////////////////////////////////////////////////////////
INLINE const GeomVertexColumn *GeomVertexWriter::
get_column() const {
if (_packer != (GeomVertexColumn::Packer *)NULL) {
return _packer->_column;
}
return NULL;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_row
// Access: Published
// Description: Sets the start row to the indicated value. The
// writer will begin writing to the indicated row;
// each subsequent set_data*() call will store the data
// into the subsequent row. If set_column() is called,
// the writer will return to this row.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_row(int row) {
_start_row = row;
if (has_column()) {
quick_set_pointer(_start_row);
}
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::get_start_row
// Access: Published
// Description: Returns the row index at which the writer
// started. It will return to this row if you reset
// the current column.
////////////////////////////////////////////////////////////////////
INLINE int GeomVertexWriter::
get_start_row() const {
return _start_row;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::get_write_row
// Access: Published
// Description: Returns the row index to which the data will be
// written at the next call to set_data*() or
// add_data*().
////////////////////////////////////////////////////////////////////
INLINE int GeomVertexWriter::
get_write_row() const {
return (int)(_pointer - _pointer_begin) / _stride;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::is_at_end
// Access: Published
// Description: Returns true if the writer is currently at the end of
// the list of vertices, false otherwise. If this is
// true, another call to set_data*() will result in a
// crash, but another call to add_data*() will add a new
// row.
////////////////////////////////////////////////////////////////////
INLINE bool GeomVertexWriter::
is_at_end() const {
return _pointer >= _pointer_end;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data1f
// Access: Published
// Description: Sets the write row to a particular 1-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data1f(float data) {
nassertv(has_column());
_packer->set_data1f(inc_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data2f
// Access: Published
// Description: Sets the write row to a particular 2-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data2f(float x, float y) {
set_data2f(LVecBase2f(x, y));
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data2f
// Access: Published
// Description: Sets the write row to a particular 2-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data2f(const LVecBase2f &data) {
nassertv(has_column());
_packer->set_data2f(inc_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data3f
// Access: Published
// Description: Sets the write row to a particular 3-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data3f(float x, float y, float z) {
set_data3f(LVecBase3f(x, y, z));
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data3f
// Access: Published
// Description: Sets the write row to a particular 3-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data3f(const LVecBase3f &data) {
nassertv(has_column());
_packer->set_data3f(inc_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data4f
// Access: Published
// Description: Sets the write row to a particular 4-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data4f(float x, float y, float z, float w) {
set_data4f(LVecBase4f(x, y, z, w));
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data4f
// Access: Published
// Description: Sets the write row to a particular 4-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data4f(const LVecBase4f &data) {
nassertv(has_column());
_packer->set_data4f(inc_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data1i
// Access: Published
// Description: Sets the write row to a particular 1-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data1i(int data) {
nassertv(has_column());
_packer->set_data1i(inc_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data2i
// Access: Published
// Description: Sets the write row to a particular 2-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data2i(int a, int b) {
nassertv(has_column());
_packer->set_data2i(inc_pointer(), a, b);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data2i
// Access: Published
// Description: Sets the write row to a particular 2-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data2i(const int data[2]) {
set_data2i(data[0], data[1]);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data3i
// Access: Published
// Description: Sets the write row to a particular 3-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data3i(int a, int b, int c) {
nassertv(has_column());
_packer->set_data3i(inc_pointer(), a, b, c);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data3i
// Access: Published
// Description: Sets the write row to a particular 3-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data3i(const int data[3]) {
set_data3i(data[0], data[1], data[2]);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data4i
// Access: Published
// Description: Sets the write row to a particular 4-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data4i(int a, int b, int c, int d) {
nassertv(has_column());
_packer->set_data4i(inc_pointer(), a, b, c, d);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_data4i
// Access: Published
// Description: Sets the write row to a particular 4-component
// value, and advances the write row.
//
// It is an error for the write row to advance past
// the end of data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_data4i(const int data[4]) {
set_data4i(data[0], data[1], data[2], data[3]);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data1f
// Access: Published
// Description: Sets the write row to a particular 1-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data1f(float data) {
nassertv(has_column());
_packer->set_data1f(inc_add_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data2f
// Access: Published
// Description: Sets the write row to a particular 2-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data2f(float x, float y) {
add_data2f(LVecBase2f(x, y));
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data2f
// Access: Published
// Description: Sets the write row to a particular 2-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data2f(const LVecBase2f &data) {
nassertv(has_column());
_packer->set_data2f(inc_add_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data3f
// Access: Published
// Description: Sets the write row to a particular 3-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data3f(float x, float y, float z) {
add_data3f(LVecBase3f(x, y, z));
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data3f
// Access: Published
// Description: Sets the write row to a particular 3-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data3f(const LVecBase3f &data) {
nassertv(has_column());
_packer->set_data3f(inc_add_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data4f
// Access: Published
// Description: Sets the write row to a particular 4-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data4f(float x, float y, float z, float w) {
add_data4f(LVecBase4f(x, y, z, w));
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data4f
// Access: Published
// Description: Sets the write row to a particular 4-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data4f(const LVecBase4f &data) {
nassertv(has_column());
_packer->set_data4f(inc_add_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data1i
// Access: Published
// Description: Sets the write row to a particular 1-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data1i(int data) {
nassertv(has_column());
_packer->set_data1i(inc_add_pointer(), data);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data2i
// Access: Published
// Description: Sets the write row to a particular 2-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data2i(int a, int b) {
nassertv(has_column());
_packer->set_data2i(inc_add_pointer(), a, b);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data2i
// Access: Published
// Description: Sets the write row to a particular 2-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data2i(const int data[2]) {
add_data2i(data[0], data[1]);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data3i
// Access: Published
// Description: Sets the write row to a particular 3-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data3i(int a, int b, int c) {
nassertv(has_column());
_packer->set_data3i(inc_add_pointer(), a, b, c);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data3i
// Access: Published
// Description: Sets the write row to a particular 3-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data3i(const int data[3]) {
add_data3i(data[0], data[1], data[2]);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data4i
// Access: Published
// Description: Sets the write row to a particular 4-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data4i(int a, int b, int c, int d) {
nassertv(has_column());
_packer->set_data4i(inc_add_pointer(), a, b, c, d);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::add_data4i
// Access: Published
// Description: Sets the write row to a particular 4-component
// value, and advances the write row.
//
// If the write row advances past the end of data,
// implicitly adds a new row to the data.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
add_data4i(const int data[4]) {
add_data4i(data[0], data[1], data[2], data[3]);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::get_packer
// Access: Protected
// Description: Returns the writer's Packer object.
////////////////////////////////////////////////////////////////////
INLINE GeomVertexColumn::Packer *GeomVertexWriter::
get_packer() const {
return _packer;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::set_pointer
// Access: Private
// Description: Sets up the array pointers freshly from the source
// object (in case they have been reallocated recently),
// and sets the internal pointer to the indicated row.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
set_pointer(int row) {
_pointer_begin = _handle->get_write_pointer();
_pointer_end = _pointer_begin + _handle->get_data_size_bytes();
quick_set_pointer(row);
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::quick_set_pointer
// Access: Private
// Description: Sets up the internal pointer to the indicated row,
// without first verifying that arrays haven't been
// reallocated.
////////////////////////////////////////////////////////////////////
INLINE void GeomVertexWriter::
quick_set_pointer(int row) {
nassertv(has_column());
#if defined(_DEBUG)
// Make sure we still have the same pointer as stored in the array.
nassertv(_pointer_begin == _handle->get_write_pointer());
#endif
_pointer = _pointer_begin + _packer->_column->get_start() + _stride * row;
#if defined(_DEBUG)
nassertv(_pointer_begin == _pointer_end || _pointer <= _pointer_end);
#endif
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::inc_pointer
// Access: Private
// Description: Increments to the next row, and returns the data
// pointer as it was before incrementing.
////////////////////////////////////////////////////////////////////
INLINE unsigned char *GeomVertexWriter::
inc_pointer() {
#if defined(_DEBUG)
nassertr(_pointer < _pointer_end, empty_buffer);
// Make sure we still have the same pointer as stored in the array.
nassertr(_pointer_begin == _handle->get_write_pointer(), empty_buffer);
nassertr(_pointer < _pointer_begin + _handle->get_data_size_bytes(), empty_buffer);
#endif
unsigned char *orig_pointer = _pointer;
_pointer += _stride;
return orig_pointer;
}
////////////////////////////////////////////////////////////////////
// Function: GeomVertexWriter::inc_add_pointer
// Access: Private
// Description: Increments to the next row, and returns the data
// pointer as it was before incrementing. If we are at
// or past the end of data, implicitly adds more
// rows first.
////////////////////////////////////////////////////////////////////
INLINE unsigned char *GeomVertexWriter::
inc_add_pointer() {
if (_pointer >= _pointer_end) {
// Reset the data pointer.
int write_row = get_write_row();
if (_vertex_data != (GeomVertexData *)NULL) {
// If we have a whole GeomVertexData, we must set the length of
// all its arrays at once.
GeomVertexDataPipelineWriter writer(_vertex_data, true, _current_thread);
writer.check_array_writers();
writer.set_num_rows(max(write_row + 1, writer.get_num_rows()));
_handle = writer.get_array_writer(_array);
} else {
// Otherwise, we can get away with modifying only the one array
// we're using.
_handle->set_num_rows(max(write_row + 1, _handle->get_num_rows()));
}
set_pointer(write_row);
}
return inc_pointer();
}