Panda3D

cullBinFixed.cxx
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1 /**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file cullBinFixed.cxx
10 * @author drose
11 * @date 2002-05-29
12 */
13
14 #include "cullBinFixed.h"
15 #include "graphicsStateGuardianBase.h"
16 #include "geometricBoundingVolume.h"
17 #include "cullableObject.h"
18 #include "cullHandler.h"
19 #include "pStatTimer.h"
20
21 #include <algorithm>
22
23
24 TypeHandle CullBinFixed::_type_handle;
25
26 /**
27 *
28 */
29 CullBinFixed::
30 ~CullBinFixed() {
31 Objects::iterator oi;
32 for (oi = _objects.begin(); oi != _objects.end(); ++oi) {
33 CullableObject *object = (*oi)._object;
34 delete object;
35 }
36 }
37
38 /**
39 * Factory constructor for passing to the CullBinManager.
40 */
41 CullBin *CullBinFixed::
42 make_bin(const std::string &name, GraphicsStateGuardianBase *gsg,
43 const PStatCollector &draw_region_pcollector) {
44 return new CullBinFixed(name, gsg, draw_region_pcollector);
45 }
46
47 /**
48 * Adds a geom, along with its associated state, to the bin for rendering.
49 */
50 void CullBinFixed::
51 add_object(CullableObject *object, Thread *current_thread) {
52 int draw_order = object->_state->get_draw_order();
53 _objects.push_back(ObjectData(object, draw_order));
54 }
55
56 /**
57 * Called after all the geoms have been added, this indicates that the cull
58 * process is finished for this frame and gives the bins a chance to do any
59 * post-processing (like sorting) before moving on to draw.
60 */
61 void CullBinFixed::
62 finish_cull(SceneSetup *, Thread *current_thread) {
63 PStatTimer timer(_cull_this_pcollector, current_thread);
64 std::stable_sort(_objects.begin(), _objects.end());
65 }
66
67 /**
68 * Draws all the geoms in the bin, in the appropriate order.
69 */
70 void CullBinFixed::
71 draw(bool force, Thread *current_thread) {
72 PStatTimer timer(_draw_this_pcollector, current_thread);
73
74 Objects::const_iterator oi;
75 for (oi = _objects.begin(); oi != _objects.end(); ++oi) {
76 CullableObject *object = (*oi)._object;
77
78 if (object->_draw_callback == nullptr) {
79 nassertd(object->_geom != nullptr) continue;
80
81 _gsg->set_state_and_transform(object->_state, object->_internal_transform);
82
83 GeomPipelineReader geom_reader(object->_geom, current_thread);
84 GeomVertexDataPipelineReader data_reader(object->_munged_data, current_thread);
85 data_reader.check_array_readers();
86 geom_reader.draw(_gsg, &data_reader, force);
87 } else {
88 // It has a callback associated.
89 object->draw_callback(_gsg, force, current_thread);
90 // Now the callback has taken care of drawing.
91 }
92 }
93 }
94
95 /**
96 * Called by CullBin::make_result_graph() to add all the geoms to the special
97 * cull result scene graph.
98 */
99 void CullBinFixed::
100 fill_result_graph(CullBin::ResultGraphBuilder &builder) {
101 Objects::const_iterator oi;
102 for (oi = _objects.begin(); oi != _objects.end(); ++oi) {
103 CullableObject *object = (*oi)._object;
104 builder.add_object(object);
105 }
106 }
CullBinFixed
A specific kind of CullBin that sorts geometry in the order specified by the user-specified draw_orde...
Definition: cullBinFixed.h:33
CullBinFixed::add_object
virtual void add_object(CullableObject *object, Thread *current_thread)
Adds a geom, along with its associated state, to the bin for rendering.
Definition: cullBinFixed.cxx:51
CullBinFixed::finish_cull
virtual void finish_cull(SceneSetup *scene_setup, Thread *current_thread)
Called after all the geoms have been added, this indicates that the cull process is finished for this...
Definition: cullBinFixed.cxx:62
CullBinFixed::make_bin
static CullBin * make_bin(const std::string &name, GraphicsStateGuardianBase *gsg, const PStatCollector &draw_region_pcollector)
Factory constructor for passing to the CullBinManager.
Definition: cullBinFixed.cxx:42
CullBinFixed::draw
virtual void draw(bool force, Thread *current_thread)
Draws all the geoms in the bin, in the appropriate order.
Definition: cullBinFixed.cxx:71
CullBin
A collection of Geoms and their associated state, for a particular scene.
Definition: cullBin.h:40
CullableObject
The smallest atom of cull.
Definition: cullableObject.h:41
GeomPipelineReader
Encapsulates the data from a Geom, pre-fetched for one stage of the pipeline.
Definition: geom.h:405
GeomPipelineReader::draw
bool draw(GraphicsStateGuardianBase *gsg, const GeomVertexDataPipelineReader *data_reader, bool force) const
The implementation of Geom::draw().
Definition: geom.cxx:1849
GeomVertexDataPipelineReader
Encapsulates the data from a GeomVertexData, pre-fetched for one stage of the pipeline.
Definition: geomVertexData.h:442
GraphicsStateGuardianBase
This is a base class for the GraphicsStateGuardian class, which is itself a base class for the variou...
Definition: graphicsStateGuardianBase.h:110
PStatCollector
A lightweight class that represents a single element that may be timed and/or counted via stats.
Definition: pStatCollector.h:43
PStatTimer
A lightweight class that can be used to automatically start and stop a PStatCollector around a sectio...
Definition: pStatTimer.h:30
SceneSetup
This object holds the camera position, etc., and other general setup information for rendering a part...
Definition: sceneSetup.h:32
Thread
A thread; that is, a lightweight process.
Definition: thread.h:46
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
cullBinFixed.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
cullHandler.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
cullableObject.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
geometricBoundingVolume.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
graphicsStateGuardianBase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pStatTimer.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.