Equalizer  1.6.1
asyncFetcher.h
1 
2 /* Copyright (c) 2009-2011, Maxim Makhinya <maxmah@gmail.com>
3  * 2012, Stefan Eilemann <eile@eyescale.ch>
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30 
31 #ifndef EQASYNC_ASYNC_FETCHER_H
32 #define EQASYNC_ASYNC_FETCHER_H
33 
34 #include <eq/eq.h>
35 
36 namespace eqAsync
37 {
38 
42 struct TextureId
43 {
44  TextureId( const GLuint id_ = 0, const void* key_ = 0 )
45  : id( id_ ), key( key_ ){};
46 
47  GLuint id; // OpenGL texture id
48  const void* key; // Object manager key; used to delete textures
49 };
50 
51 class Window;
52 
56 class AsyncFetcher : protected lunchbox::Thread
57 {
58 public:
59  AsyncFetcher();
60  ~AsyncFetcher();
61 
62  void setup( Window* window );
63  void stop();
64 
65 // TextureId getTextureId() { return _outQueue.pop().id; }
66  bool tryGetTextureId( TextureId& val ) { return _outQueue.tryPop( val ); }
67  void deleteTexture( const void* key ) { _inQueue.push( key ); }
68 
69 protected:
70  virtual void run();
71  const GLEWContext* glewGetContext() const;
72 
73 private:
74  lunchbox::MTQueue<const void*> _inQueue; // textures to delete
75  lunchbox::MTQueue<TextureId> _outQueue; // generated textures
76  eq::SystemWindow* _sharedWindow;
77 };
78 
79 }
80 
81 #endif //EQASYNC_ASYNC_FETCHER_H
Structure to associate OpenGL texture ids with an external key.
Definition: asyncFetcher.h:42
Asynchronous fetching thread.
Definition: asyncFetcher.h:56
virtual void run()
Function for creating and holding of shared context.
The interface definition for system-specific windowing code.
Definition: systemWindow.h:35