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Pixmap creation for surface composition


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#1 venkatdoss   Members   -  Reputation: 128

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Posted 19 July 2012 - 11:51 PM

Dear All,

I am here with some basic question,regarding EGL surface creation.Currenly i am working on the composition part but unfortunately my os (custom) doest have a support to create a pixmap.Sorry i am in basic level in terms of surface composition.Please let me know whether my approach is right???


pixmap_ = XCreatePixmap(

	  dpy, window, size_.width(), size_.height(), gwa.depth);



But unfortunately the above call i cant use because i dont have X11 support. so could any one please guide me how to overcome this issue to create a pixmap through openGL ES 2.0.Right now my implementation for linux is as follows



pixmap_ = XCreatePixmap(

	  dpy, window, size_.width(), size_.height(), gwa.depth);





  image_ = eglCreateImageKHR(

	  edpy, EGL_NO_CONTEXT, EGL_NATIVE_PIXMAP_KHR,

	  reinterpret_cast<void*>(pixmap_), NULL);

  glGenTextures(1, &texture_);

  GLint current_texture = 0;

  glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_texture);

  glBindTexture(GL_TEXTURE_2D, texture_);

  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);

  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);

  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);

  glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image_);

  glBindTexture(GL_TEXTURE_2D, current_texture);





So i am struck up with XCreatePixmap..please let me know how we can create pixmap through openGL ES 2.0 rather than depending on native calls.

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#2 venkatdoss   Members   -  Reputation: 128

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Posted 20 July 2012 - 07:04 AM

Dear All,

Can anyone answer to above question.. please guide me .. am badly struck,dont know how to proceed..

1) how i can create my pixmap using openGL ES 2.0 without X11 support.please provide me your ideas and suggestion
2) whether it is feasible if not why???
3)What could be alternate solution to fix this issue..

Thanks in Advance,




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