GLMixer Code

Made code compatible under Windows (GL_EXT_framebuffer_blit not in glext.h) by using Qt v4.6. + cleaned include dependency on the way.

Implemented capture of rendering output (+ create source and save to file). Added proper icons for source related actions and modified the menu a bit.

Implemented loopback Rendering output as source. It works with fbo and (if available) blitting of the fbo texture (to be fast).

Implemented mouse double click event

BIG OPENGL CLEANING: the manipulation view is not a ViewRenderWidget which implements the view changing mechanism, the OutputRenderWindow is now a OutputRenderWidget which implements the FBO blit extension, + many OpenGL and QGLWidget optimizations.

Validated new version (+ minor bug fix)

BIG RE-DESIGN; in order to improve performances, the rendering of every sources (loop over all video textures) is now done ONCE, and the mixing rexult is rendered on the fly into an FBO. This FBO is then displayed as a simple texture in the OutputRenderWindow (which is extremely fast, even more with the FBO blit GL extension). To makes things simpler, the RenderingManager is now dealing with the rendering and the sources, and the views are only procedures used to know how to show the manipulation view.

Bug fix in the management of selection std::map

Changed icons (previous had copyright) and added a ToolBar.

oops; finishing up last commit.