Panda3D

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cullBinStateSorted.h
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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 cullBinStateSorted.h
10 * @author drose
11 * @date 2005-03-22
12 */
13
14#ifndef CULLBINSTATESORTED_H
15#define CULLBINSTATESORTED_H
16
17#include "pandabase.h"
18
19#include "cullBin.h"
20#include "cullableObject.h"
21#include "geom.h"
22#include "transformState.h"
23#include "renderState.h"
24#include "pointerTo.h"
25
26/**
27 * A specific kind of CullBin that sorts geometry to collect items of the same
28 * state together, so that minimal state changes are required on the GSG to
29 * render them.
30 *
31 * This also sorts objects front-to-back within a particular state, to take
32 * advantage of hierarchical Z-buffer algorithms which can early-out when an
33 * object appears behind another one.
34 */
35 class EXPCL_PANDA_CULL CullBinStateSorted : public CullBin {
36 public:
37 INLINE CullBinStateSorted(const std::string &name,
38 GraphicsStateGuardianBase *gsg,
39 const PStatCollector &draw_region_pcollector);
40 virtual ~CullBinStateSorted();
41
42 static CullBin *make_bin(const std::string &name,
43 GraphicsStateGuardianBase *gsg,
44 const PStatCollector &draw_region_pcollector);
45
46 virtual void add_object(CullableObject *object, Thread *current_thread);
47 virtual void finish_cull(SceneSetup *scene_setup, Thread *current_thread);
48 virtual void draw(bool force, Thread *current_thread);
49
50 protected:
51 virtual void fill_result_graph(ResultGraphBuilder &builder);
52
53 private:
54 class ObjectData {
55 public:
56 INLINE ObjectData(CullableObject *object);
57 INLINE bool operator < (const ObjectData &other) const;
58
59 CullableObject *_object;
60 const GeomVertexFormat *_format;
61 };
62
63 typedef pvector<ObjectData> Objects;
64 Objects _objects;
65
66 public:
67 static TypeHandle get_class_type() {
68 return _type_handle;
69 }
70 static void init_type() {
71 CullBin::init_type();
72 register_type(_type_handle, "CullBinStateSorted",
73 CullBin::get_class_type());
74 }
75 virtual TypeHandle get_type() const {
76 return get_class_type();
77 }
78 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
79
80 private:
81 static TypeHandle _type_handle;
82};
83
84#include "cullBinStateSorted.I"
85
86#endif
CullBinStateSorted::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 cullBinStateSorted.cxx:41
CullBinStateSorted::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 cullBinStateSorted.cxx:50
CullBinStateSorted::draw
virtual void draw(bool force, Thread *current_thread)
Draws all the geoms in the bin, in the appropriate order.
Definition cullBinStateSorted.cxx:70
CullBin::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 cullBin.cxx:53
CullableObject
The smallest atom of cull.
Definition cullableObject.h:41
GeomVertexFormat
This class defines the physical layout of the vertex data stored within a Geom.
Definition geomVertexFormat.h:55
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
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
cullBinStateSorted.I
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
cullBin.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
cullableObject.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
geom.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pandabase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pointerTo.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
register_type
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition register_type.I:22
renderState.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
transformState.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.