92 lines
3.4 KiB
Plaintext
92 lines
3.4 KiB
Plaintext
// Filename: indexBufferContext.I
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// Created by: drose (17Mar05)
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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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////////////////////////////////////////////////////////////////////
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// Function: IndexBufferContext::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE IndexBufferContext::
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IndexBufferContext(PreparedGraphicsObjects *pgo, GeomPrimitive *data) :
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BufferContext(&pgo->_ibuffer_residency),
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_data(data)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: IndexBufferContext::get_data
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// Access: Public
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// Description: Returns the pointer to the client-side array data
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// object.
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////////////////////////////////////////////////////////////////////
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INLINE GeomPrimitive *IndexBufferContext::
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get_data() const {
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return _data;
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}
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////////////////////////////////////////////////////////////////////
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// Function: IndexBufferContext::changed_size
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// Access: Public
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// Description: Returns true if the data has changed size since the
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// last time mark_loaded() was called.
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////////////////////////////////////////////////////////////////////
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INLINE bool IndexBufferContext::
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changed_size() const {
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return get_data_size_bytes() != (size_t)_data->get_data_size_bytes();
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}
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////////////////////////////////////////////////////////////////////
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// Function: IndexBufferContext::changed_usage_hint
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// Access: Public
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// Description: Returns true if the data has changed its usage hint
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// since the last time mark_loaded() was called.
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////////////////////////////////////////////////////////////////////
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INLINE bool IndexBufferContext::
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changed_usage_hint() const {
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return _usage_hint != _data->get_usage_hint();
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}
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////////////////////////////////////////////////////////////////////
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// Function: IndexBufferContext::was_modified
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// Access: Public
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// Description: Returns true if the data has been modified since the
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// last time mark_loaded() was called.
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////////////////////////////////////////////////////////////////////
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INLINE bool IndexBufferContext::
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was_modified() const {
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return get_modified() != _data->get_modified();
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}
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////////////////////////////////////////////////////////////////////
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// Function: IndexBufferContext::mark_loaded
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// Access: Public
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// Description: Should be called after the IndexBufferContext has been
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// loaded into graphics memory, this updates the
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// internal flags for changed_size() and modified().
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////////////////////////////////////////////////////////////////////
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INLINE void IndexBufferContext::
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mark_loaded() {
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update_data_size_bytes(_data->get_data_size_bytes());
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update_modified(_data->get_modified());
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_usage_hint = _data->get_usage_hint();
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// Assume the buffer is now resident.
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set_resident(true);
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}
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