94 lines
3.8 KiB
C++
94 lines
3.8 KiB
C++
// Filename: bufferResidencyTracker.cxx
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// Created by: drose (16Mar06)
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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 "bufferResidencyTracker.h"
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#include "bufferContext.h"
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#include "clockObject.h"
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PStatCollector BufferResidencyTracker::_gmem_collector("Graphics memory");
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////////////////////////////////////////////////////////////////////
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// Function: BufferResidencyTracker::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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BufferResidencyTracker::
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BufferResidencyTracker(const string &pgo_name, const string &type_name) :
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_pgo_collector(_gmem_collector, pgo_name),
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_active_resident_collector(PStatCollector(_pgo_collector, "Active"), type_name),
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_active_nonresident_collector(PStatCollector(_pgo_collector, "Thrashing"), type_name),
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_inactive_resident_collector(PStatCollector(_pgo_collector, "Inactive"), type_name),
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_inactive_nonresident_collector(PStatCollector(_pgo_collector, "Nonresident"), type_name),
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_active_frame(0)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: BufferResidencyTracker::begin_frame
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// Access: Public
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// Description: To be called at the beginning of a frame, this
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// initializes the active/inactive status.
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////////////////////////////////////////////////////////////////////
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void BufferResidencyTracker::
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begin_frame(Thread *current_thread) {
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#ifdef DO_PSTATS
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int this_frame = ClockObject::get_global_clock()->get_frame_count(current_thread);
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if (_active_frame != this_frame) {
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_active_frame = this_frame;
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// Move all of the previously "active" objects into "inactive".
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// They'll get re-added to "active" as they get rendered.
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move_inactive(_chains[S_inactive_nonresident],
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_chains[S_active_nonresident]);
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move_inactive(_chains[S_inactive_resident],
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_chains[S_active_resident]);
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}
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#endif // DO_PSTATS
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}
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////////////////////////////////////////////////////////////////////
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// Function: BufferResidencyTracker::end_frame
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// Access: Public
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// Description: To be called at the end of a frame, this
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// updates the PStatCollectors appropriately.
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////////////////////////////////////////////////////////////////////
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void BufferResidencyTracker::
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end_frame(Thread *current_thread) {
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_inactive_nonresident_collector.set_level(_chains[S_inactive_nonresident].get_total_size());
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_active_nonresident_collector.set_level(_chains[S_active_nonresident].get_total_size());
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_inactive_resident_collector.set_level(_chains[S_inactive_resident].get_total_size());
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_active_resident_collector.set_level(_chains[S_active_resident].get_total_size());
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}
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////////////////////////////////////////////////////////////////////
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// Function: BufferResidencyTracker::move_inactive
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// Access: Private
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// Description: Moves all of the "active" objects into "inactive".
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////////////////////////////////////////////////////////////////////
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void BufferResidencyTracker::
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move_inactive(BufferContextChain &inactive, BufferContextChain &active) {
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BufferContext *node = active.get_first();
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while (node != (BufferContext *)NULL) {
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nassertv((node->_residency_state & S_active) != 0);
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node->_residency_state &= ~S_active;
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node = node->get_next();
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}
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inactive.take_from(active);
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}
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