We want to allow dynamic backend loading during runtime so we need to
avoid static definitions. This converts the backend IDs into module
structures which are then linked into the binary.
To make this fully modular, we need to load the backends dynamicly via
dlsym() and move all the static declarations from uterm_video.h into the
backends. But for now at least the backends can be easily exchanged and
configured during compile-time.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of depending on libdrm, we simply copy the VERSION-IOCTL ABI and
perform the ioctl ourself. This reduces complexity and dependencies.
Why does the DRM layer not provide normal uapi headers via
linux-api-headers? We should fix that.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of using the pciaccess helpers, we now read the boot_vga flag via
uterm. This makes the whole process a lot simpler and removes a lot of
duplicated code that is already provided by the kernel.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We will split the public uterm header soon to avoid big headers. Hence,
rename internal headers to *_internal.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We still have dead dependencies on libfont.la but don't build it anymore.
Remove the dependency as it is directly linked now.
Reported-by: Vladimir Kravets
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We removed this service unit earlier this week but the EXTRA_DIST variable
still mentions it. Remove it so kmscon builds cleanly again.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We no longer need these helpers so remove them. We require each backend to
register itself as part of module-loading so no need to keep these
helpers.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Similar to the font backends we now require one backend to be always
available as safe fallback. The bblit backend is the most basic backend so
make it mandatory and link it unconditionally.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
When text-ops are registered via modules, we need an owner field so
they're correctly tracked. Hence, add this field to all text-ops and
correctly keep module references.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The freetype2 backend is no longer recommended. You should always prefer
the pango backend. Pango provides a lot more advanced font options and
internationalization.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
All font definitions have been moved to font.h so remove the old
definitions and include font.h instead.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The owner fields specifies the module that provides the code for the given
backend. The font-core is responsible of ref/unref'ing the module so its
code is always available as long as the module exists.
We cannot push this into the modules as modules _must_ never call
kmscon_module_unref(KMSCON_THIS_MODULE)! Because this might drop the last
reference and hence the function might disallocate the module. However,
this means that it cannot return because the caller is _part_ of the
module and so no longer valid.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Several parts of kmscon have huge external dependencies. However, we allow
them to be disabled during build-time. But this is not enough as it
requires distributions to choose which options to use. Therefore, we now
allow dynamicly loadable modules that can optionally be installed and
kmscon automatically picks them up.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
wlterm hasn't been updated for long and it will take some more time to get
it to work with recent Wayland protocol. Hence, disable it so it doesn't
matter if it breaks for now.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Each font-backend now also gets a .finalize callback that is called when
the last font-user drops its font. This will allow modules to destroy
themself when the last reference is dropped.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The new destroy callback is called whenever an entries last reference is
dropped. This will allow modules to keep reference of its code users.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
With modules we no longer need to conditionally load backends. Instead
each module will register the backend with the main application on load.
This will temporarily break pango, freetype2 and unifont backends as they
are not registered until we introduce full module support.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We want to modularize the text-font library, so we need each backend as a
different library. This step links each of them into a different static
library so we can now link them either into the binary or into modules.
This step also makes 8x16 always compiled into the text-font backend so we
always have a working implementation even though no modules might be
loaded.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The man_fixup_aliases thingy was a horrible hack. Replace it with a
temporary .man_fixup file that saves compilation timestamps so we have
post-recipies for man-fixups.
Also fix some minor out-of-tree build problems.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We need the git-revision for module-version checks so provide the
infrastructure now and print it in log_init().
Note that the git-describe string is distributed with the tarballs so
end-users will not have to generate it themself. But when building from
git, the revision will be automatically updated whenever something
changes.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We didn't set the dependencies correctly for uterm libraries as a
backslash was missing. Fix this typo.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We need to mark it as PHONY target as it has no corresponding source file.
It's unlikely that it causes problems, but lets be safe.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
"struct dirent" has always been a mess. As its size may differ between
systems, we need to dynamically allocate it. This helper does that for us.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of implementing our own thread-safe backend-storage, we now use
the generic shl-registry object.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of implementing a thread-safe backend-system we can now use the
new shl-registry storage module.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The shl-register module is used to create registries of named-objects. The
main purpose for it will be for module-systems were we have different
backends implementing an interface. The registry can then be used to find
a specific module (or the default module).
No sophisticated filter/search mechanism is used as this cannot be done
efficiently in a generic way.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The standard OpenGL surfaces are y-inverted (which we didn't implement
correctly previously when using our own gbm-surfaces). Therefore, we need
to flip the y-coordinates now as we use correct GL surfaces with the new
drm-uterm backend.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Until now we always created our buffers via gbm_bo_create() and used
surfaceless EGL contexts so we can schedule buffer-flips manually.
However, recent gbm and EGL mesa releases include gbm-surfaces that allow
us to ignore all this an let EGL manage the buffers.
This introduces some problems as we are no longer under control of the
buffers so we cannot know which buffer is active. That means, applications
that use the uterm-drm devices must redraw the screen on each frame.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
