You need to be using GraphicsWindowEmbedded, and your call to
eglGetDisplay() should use EGL_DEFAULT_DISPLAY .
On Fri, Sep 26, 2014 at 12:10 PM, joey pedroza <jpedr...@thex1.com> wrote:
> Hi Team,
>
> It was decided that it is a priority to get this project to run on
> windows. So I went down the path of trying to get it to work. That is my
> life right now.
>
> Unfortunately they don't want to use SDL 2.
>
> Here is where I'm at currently, I have been able to successfully compile
> the latest OSG with OpenGLES2.0 by removing the two files suggested
> GraphicsWindowWin32 and PixelBufferWin32. I am using PowerVR open gl
> libraries. This is an emulator. It currently works for the overlay
> project so I know this will work here.
>
> Now I need to pass a graphic context to my code but the samples I saw do
> this. and I no longer have GraphicsWindowWin32? how else can I get a gc?
>
> osg::ref_ptr<osg::Referenced> windata = new
> osgViewer::GraphicsWindowWin32::WindowData( hwnd );
> /** WindowData is used to pass in the Win32 window handle attached the
> GraphicsContext::Traits structure.*/
> osg::ref_ptr<osg::GraphicsContext::Traits> traits = new
> osg::GraphicsContext::Traits;
> traits->x = 0;
> traits->y = 0;
> traits->width = 800;
> traits->height = 600;
> traits->windowDecoration = false;
> traits->doubleBuffer = true;
> traits->inheritedWindowData = windata;
> osg::ref_ptr<osg::GraphicsContext> gc =
> osg::GraphicsContext::createGraphicsContext( traits.get() );
> osg::ref_ptr<osg::Camera> camera = new osg::Camera;
> camera->setGraphicsContext( gc );
> camera->setViewport( new osg::Viewport(0, 0, traits->width,
> traits->height) );
> camera->setClearMask( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
> camera->setClearColor( osg::Vec4f(0.2f, 0.2f, 0.4f, 1.0f) );
> camera->setProjectionMatrixAsPerspective(
> 30.0f,(double)traits->width/(double)traits->height,1.0,1000.0 );
> g_viewer = new osgViewer::Viewer;
> g_viewer->setCamera( camera.get() );
> g_viewer->setSceneData( osgDB::readNodeFile("cessna.osg") );
> g_viewer->setKeyEventSetsDone( 0 );
> g_viewer->setCameraManipulator( new osgGA::TrackballManipulator );
>
> In our overlay project which is where we get the graphic context that we
> want to pass on to osg the code is like so
> case WM_CREATE:
> egl_window = hWnd;
>
> //Store the device context.
> hDC = GetDC(hWnd);
>
> //Get the default display.
> egl_display = eglGetDisplay(hDC);
> //eglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
>
> //Initialize EGL.
> eglInitialize(egl_display, &egl_major_version,
> &egl_minor_version);
>
> //Make OpenGL ES the current API.
> eglBindAPI(EGL_OPENGL_ES_API);
>
> //Find a configuration that matches all requirements.
> eglChooseConfig(egl_display, egl_config_attributes,
> &egl_config, 1, &configs);
>
> //Create a drawing surface.
> egl_surface = eglCreateWindowSurface(egl_display, egl_config,
> egl_window, NULL);
>
> //Create a context.
> egl_context = eglCreateContext(egl_display, egl_config, NULL,
> egl_context_attributes);
>
> //Bind the context to the current thread and use window
> surface for drawing.
> eglMakeCurrent(egl_display, egl_surface, egl_surface,
> egl_context);
>
> //Specify the minimum number of video frame periods per buffer
> swap.
> //If interval is set to a value of 0, buffer swaps are not
> synchronized to a video frame,
> //and the swap happens as soon as the render is complete.
> eglSwapInterval(egl_display, 1);
> //eglSwapInterval(egl_display, 0);
>
> //Get the version of OpenGL ES and GL Shading Language.
> opengl_es_version = glGetString(GL_VERSION);
> glsl_version = glGetString(GL_SHADING_LANGUAGE_VERSION);
>
> //Set the clear values for the color buffer.
> glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
>
> //Set the OpenGL display settings.
> glEnable(GL_BLEND);
> glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
>
> glEnable(GL_DEPTH_TEST);
> glDepthMask(GL_TRUE);
> glDepthFunc(GL_LEQUAL);
> glClearDepthf(1.0f);
> glDepthRangef(0.0f, 1.0f);
>
> //Load the default shader program.
> shader.load_default_shader();
> default_shader_program = shader.get_default_shader_program();
>
> //Generate texture names.
> generate_texture_names(texture_id);
>
> Thank you!
>
> Cheers,
> joey
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=61182#61182
>
>
>
>
>
> _______________________________________________
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>
--
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