bb9089696e
See https://github.com/dvdhrm/kmscon/pull/3 for a discussion of K_OFF in the VT subsystem. We cannot apply it now but we have to reconsider it when the input subsystem has been written. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
49 lines
2.3 KiB
Plaintext
49 lines
2.3 KiB
Plaintext
= This is a rough TODO list, feel free to contribute patches =
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Output Subsystem:
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- Test whether eglMakeCurrent() is thread-aware and can set different context
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per thread. Comment this behaviour in kmscon_compositor_use().
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Multiple active context would actually make sense if you have multiple
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graphic cards as you could render on both cards simultaneously. However, if
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you have only one card, multiple active contexts are not really needed.
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- Avoid EGL_EGLEXT_PROTOTYPES and GL_GLEXT_PROTOTYPES and instead retrieve
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function pointers dynamically.
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- How to get bpp and colordepth?
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- Retrieve DRI card from udev or at least make kmscon_compositor_new() accept a
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path to the DRI card so the user can have udev provide the path.
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- Check whether drmSetMaster() is needed. It can only be called with root
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priviledges and all my tests worked without it. What are the benefits of
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calling this?
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- Whats the difference between connector and encoder? Or why are encoders
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needed at all? The output selection logic simply tries to find the first
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encoder that provides an available crtc. Should we replace this logic with an
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additional list of available crtcs so users can choose them, too?
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- Is glFinish() needed before setCrtc or is glFlush sufficient?
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Console Subsystem:
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- Do we need to offer a way to create mipmaps of the cairo image? This would
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allow faster mappings of the console onto the framebuffers.
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- We need to correctly handle Unicode characters. Every console cell contains
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one single character, however, Unicode supports combining marks. Our
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implementation supports them but we need to correctly map our keyboard input
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to the correct cells. Pango depends on glib so we can probably use the glib
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functions for UTF-8/Unicode handling.
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- Add glyph caching support with cairo_scaled_font_t. The libvte does this
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inside vtedraw.c but it is licensed by GPL so we need to rewrite it if we
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want it.
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This would speed up our font-draw functions considerably as we would bypass
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pango if a glyph is already in the hash-table.
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VT Subsystem:
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- Set KDSKBMODE to K_OFF to avoid getting input from the VT subsystem. This
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also discards the VT-switch events so we should first implement our own
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VT-switching mechanisms and then use this K_OFF switch.
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