Allow other subsystems to retrieve the context of a compositor. The
context has no reference count as it is tied to the compositor.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
To avoid the fixed function pipeline we should use shaders instead of
old glBegin/glEnd. This patch adds two basic shaders and functions that
load and initialize them.
To avoid loading the shaders at runtime we generate a source file which
contains them as strings so they are embedded in the binary.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This splits off all EGL/GL calls into output_context.c. This way we can
replace the backend of the drawing functions very easily.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
There is no need to retrieve the fd of the compositor as we now have an
eloop subsystem which takes care of event handling.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
These are the only open() calls missing the flag.
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This makes things easier in the common case of
<some error> -> <log error> -> <goto error handler> - <do something with
errno>
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This is a first attempt of a freetype2 backend for the font drawing functions.
This avoids the heavy pango/cairo dependencies, although, we might lose
important font handling that pango does for us like correctly drawing combined
characters.
This is still a stub implementation. The drawing operations are not supported,
yet. Use --enable-pango during configure to enable the still working pango
backend.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We use a new font factory which is used to create a new font. It will later also
be used to cache fonts and select proper system fonts.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Allow converting a ucs4 string into a utf8 string. Also export the default
symbol so other subsystems may use it.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of allocating big buffers with kmscon_char's for every character we now
reduce a single character to an integer. This integer is either the Unicode
codepoint or an ID to an internally allocated string.
The so called kmscon_symbol_t integer can now be used as if it were a classic
"char" value without bothering with combining marks etc.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Just a direct mapping to X modifiers for now (= Shift, Control,
Lock, Mod1-5).
This gives us more flexibility to adapt it to our needs in the future.
Also we don't have to include libxkbcommon headers just for the modifier
definitions.
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
0 is actually a valid unicode value, so instead we use
KMSCON_INPUT_INVALID which is not legal unicode.
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Just some renames/moving/prefixing to conform to the style of the
other files.
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
- Use the number of groups we actually have instead of the maximum
number of groups, when wrapping according to group_wrap control.
- Be careful with negative relative group actions. The group fields of
xkb_state are all unsigned (and have a weird FIXME..), so don't use
them directly.
- Add the grp:ctrl_shift_toggle option to the rmlvo set to also test
locking the previous group (i.e. a negative relative group action).
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We can disable repeats globally or per-key. Also any modifier
keys should not repeat.
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Stuff like grp:ctrl_shift_toggle didn't work because of it.
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This commit introduces a new kmscon_input_event structure which is
delivered to the input consumer. The information provided is
- The evdev scancode (=physical keyboard key).
- The X keysym (a symbol representing what the typist really intended).
- The active modifiers (e.g. Shift, Control..)
- The unicode (UCS-4) value, when it makes sense.
To achieve this we add two dependencies:
- libxkbcommon (this entails xproto and kbproto, but shouldn't bring any of
big X dependencies)
- A function to translate keysyms to unicode values (taken from xlib,
copied in-tree).
libxkbcommon is not an all-around solution, and requires various degrees
of supporting code, depending on how much we wish to support. This
commit implements the common, basic uses:
- Choosing layouts, variants and options
- Switching groups
- Switching shift-levels
- Setting modifiers
Though some stuff is missing. Further information in the comments.
test_input.c is updated to use the new input event interface. You can
change the layouts in input.c:init_input() and see what works and what
doesn't.
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This is currently broken, anyway as we do not unref the object. However, if we
take a reference, then kmscon_input_unref() would never destroy the object as
there are still references. The caller would have to call kmscon_input_sleep()
first to have the desired effect.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We either need to adjust our filters to only receive inputX/eventY events or we
simply ignore all other events silently to avoid useless warnings.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The diff may look a bit wild but this mostly fixes coding style issues:
- sort includes alphabetically
- add missing includes
- rearrange structures/functions to avoid forward declarations
- adding "data" user-defineable field to input structure (for callbacks)
- correctly handle errors in device_data_arrived
- remove device_added/device_removed
- merge input_init into constructor
- add some log messages for debugging
- remove devices when wake-up fails
- set cb/data fields on eloop connection, not on initialization
- remove all devices when disconnecting eloop so the eloop is guaranteed to be
not used by the input subsystem after disconnection.
- some error handling fixes
- remove some TODOs which are correctly implemented
- Add O_NONBLOCK when opening the device node (I don't know how it actually
worked without it in the data_arrived callback)
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This does all the boring stuff for an input subsystem:
- Input device discovery using udev
- Input device hotplug (add/remove)
- Reading the evdev data from the devices
- Publishing input events to a callback through the eloop
- Suspending and resuming the input capture
Currently the delivered input events are basically just evdev's
"struct input_event" (type, code, value). More work is required to
have it pass out useful data.
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
vte: This adds a dummy VTE subsystem. It will be used to emulate a vt100
terminal based on our console subsystem.
terminal: This ties together several subsystems including the output-, the
console- and the vte-subsystem.
The test_terminal test application can be used to test the terminal. It is
supposed to provide a full vt100 implementation which is displayed on all
available screens.
Most of the functionality here is not implemented yet and only a dummy function.
These will be added in later commits.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
It doesn't make sense to print the size of new buffer objects as the resize
function does the same. We also currently access uninitialized memory here so it
is useless anyway.
Also move the message of the unref function to be consistent with other objects.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
There is no reason to prohibit a compositor from activating its GL context while
being asleep. It is even recommended to activate the GL context when being
asleep as there is no other way to initialize other subsystems without an GL
context.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
If wakeup fails we should drop master priviledges again, otherwise we might
break other applications.
Also remove the SetMaster call on compositor initialization. It is redundant and
not needed by us.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Currently, we set up our VT with SIGUSR1/2 signals and after that the user may
connect the signal handlers to the eloop. However, if we receive a signal in
between, the signal gets lost.
Therefore, this simply merges the kmscon_vt_connect_eloop function into
kmscon_vt_open as there is no obvious reason to split them.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
If we have only an output but not the related compositor we currently cannot
figure out whether this output is awake. This adds such a helper function.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We must not destroy the compositor object if there is still a console using the
GL context. Otherwise we get a SEGFAULT when calling any gl* function.
In future we may need propoper dependencies here. We use reference counts so
this should be easy to implement.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
kmscon_console_newline() can be used to produce a newline. Writing \n doesn't
work as this would write \n as character into the cell and not produce a
newline.
The console does not perform any parsing so we provide a separate function.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Remove the *_set_res() function entirely. Instead, the *_resize() function now
accepts a height argument which is used as quality hint. Internally, we compute
the texture width by the selected font plus the given height. This simplifies
the API and the internal handling and improves output on non-standard
resolutions or with non-standard fonts.
Until now it was only optimized for my 16x9 output but 5x4 output was quite
garbled.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We shouldn't do anything if buffer_resize is called with the same size. This
also suppresses useless "buffer resized to XxY" debug messages.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
When creating a new font we automatically measure the average width of a
character. This allows us to draw fonts even on weird resolutions.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
A kmscon_char has always a valid buffer so we can always return a valid pointer.
The user shouldn't use it if length is 0 but it's not our job to prohibit that.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Forward resizing requests to the buffer but correctly update our size cache and
the cursor position.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
