Equalizer  1.6.1
eqAsync.h
1 
2 /* Copyright (c) 2009-2011, Maxim Makhinya <maxmah@gmail.com>
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29 
30 #ifndef EQASYNC_ASYNC_H
31 #define EQASYNC_ASYNC_H
32 
33 #include "asyncFetcher.h"
34 
35 #include <eq/eq.h>
36 
37 namespace eqAsync
38 {
39 
40 /* Simple Channel class */
41 class Channel : public eq::Channel
42 {
43 public:
44  Channel( eq::Window* parent ) : eq::Channel( parent ) {}
45 
46 protected:
47  virtual void frameDraw( const eq::uint128_t& spin );
48 };
49 
50 
51 /* Simple Window class that will call init of the pipe to create a shared
52  context */
53 class Window : public eq::Window
54 {
55 public:
56  Window( eq::Pipe* parent ) : eq::Window( parent ) {}
57  bool configInitGL( const eq::uint128_t& initID );
58 };
59 
60 
61 /* Simple Pipe class that creates a shared window for async fetching */
62 class Pipe : public eq::Pipe
63 {
64 public:
65  Pipe( eq::Node* parent )
66  : eq::Pipe( parent ), _initialized( false ), _txId( 0 ) {}
67 
68  void startAsyncFetcher( Window* wnd );
69  AsyncFetcher& getAsyncFetcher() { return _asyncFetcher; }
70  GLuint getTextureId() const { return _txId.id; }
71 
72 protected:
73  /* checks if new textures are avaliable */
74  virtual void frameStart( const eq::uint128_t& frameID,
75  const uint32_t frameNumber );
76  virtual bool configExit();
77 
78 private:
79  bool _initialized;
80  AsyncFetcher _asyncFetcher;
81  TextureId _txId;
82 };
83 
84 }
85 
86 #endif // EQASYNC_ASYNC_H
A channel represents a two-dimensional viewport within a Window.
A Window represents an on-screen or off-screen drawable.
A Node represents a single computer in the cluster.
A Pipe represents a graphics card (GPU) on a Node.
bool configInitGL(const eq::uint128_t &initID)
Initialize the OpenGL state for this window.
Definition: eqAsync.cpp:36
virtual void frameDraw(const eq::uint128_t &spin)
Draw the scene.
Definition: eqAsync.cpp:76
virtual void frameStart(const eq::uint128_t &frameID, const uint32_t frameNumber)
Start rendering a frame.
Definition: eqAsync.cpp:56
Structure to associate OpenGL texture ids with an external key.
Definition: asyncFetcher.h:42
Asynchronous fetching thread.
Definition: asyncFetcher.h:56
virtual bool configExit()
De-initialize this pipe.
Definition: eqAsync.cpp:70