platform/upstream/kmscon.git
12 years agodoc: fix header of gtk-doc makefile
David Herrmann [Sun, 24 Jun 2012 19:11:57 +0000 (21:11 +0200)]
doc: fix header of gtk-doc makefile

It still used the old name. So convert it to use the more general name as
we are building all documentation into one global document.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agobuild: add comments to Makefile.am
David Herrmann [Sun, 24 Jun 2012 19:11:19 +0000 (21:11 +0200)]
build: add comments to Makefile.am

Add more comments to Makefile.am to make it more readable.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agobuild: put static_* files into separate library
David Herrmann [Sun, 24 Jun 2012 18:43:34 +0000 (20:43 +0200)]
build: put static_* files into separate library

We now build all small helpers into a separate small library that can be
linked statically into all our others. That is, we don't need to keep
backwards compatibility or anything inside this library.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agostatic: move statically linked subsystems to static_*
David Herrmann [Sun, 24 Jun 2012 18:35:22 +0000 (20:35 +0200)]
static: move statically linked subsystems to static_*

Small stuff that is not worth putting into a separate library is no moved
into the "static" library which is statically linked into all our
subsystems.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoeloop: move to llog
David Herrmann [Sun, 24 Jun 2012 16:53:46 +0000 (18:53 +0200)]
eloop: move to llog

Move every use of log_* to llog_* and make all objects aware of llog
objects.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agollop: add default helpers
David Herrmann [Sun, 24 Jun 2012 16:16:12 +0000 (18:16 +0200)]
llop: add default helpers

We often need to return the same message over and over again with the same
return value. Use default log-messages now instead of ignoring the log.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agollog: add direct log helpers
David Herrmann [Sun, 24 Jun 2012 16:15:14 +0000 (18:15 +0200)]
llog: add direct log helpers

Sometimes, the parent object might not be available so we need to pass in
the log-object directly. Use "d" as prefix for those functions and add
variants for the most oftenly used functions.

If you need more direct variants, add them when you introduce the first
user.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoeloop: require llog function in eloop-creation
David Herrmann [Sun, 24 Jun 2012 15:57:38 +0000 (17:57 +0200)]
eloop: require llog function in eloop-creation

When creating a new eloop object, we now require an lloop function so we
can perform conditional logging.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agobuild: set LLOG_ENABLE_DEBUG
David Herrmann [Sun, 24 Jun 2012 15:55:59 +0000 (17:55 +0200)]
build: set LLOG_ENABLE_DEBUG

Set LLOG_ENABLE_DEBUG if debug mode is used.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agolog: add link to llog
David Herrmann [Sun, 24 Jun 2012 15:55:26 +0000 (17:55 +0200)]
log: add link to llog

Add helper function that can be used as llog backend.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agollog: add library log helpers
David Herrmann [Sun, 24 Jun 2012 15:28:31 +0000 (17:28 +0200)]
llog: add library log helpers

Libraries must never log unconditionally. Otherwise, applications are
unable to disable logging and can get confused. This header contains
helpers to implement conditional logging on context objects inside of
libraries.

It is compatible to the log interface in kmscon apart from the runtime
configuration.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agolog: change severities to be identical to kernel sevs
David Herrmann [Sun, 24 Jun 2012 15:21:56 +0000 (17:21 +0200)]
log: change severities to be identical to kernel sevs

The kernel defines 8 severities. Lets be compatible to these numbers so
our API will not have to be changes in the future.

This also causes LOG_ALERT to be added. It is not used, yet, but may be in
the future.

We also change the parameter type of severities to "unsigned int". Enum
variables can change types if new enums are added. We don't want that so
use a fixed type.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: set AUTO_WRAP mode on reset for console object
David Herrmann [Sun, 24 Jun 2012 10:20:18 +0000 (12:20 +0200)]
vte: set AUTO_WRAP mode on reset for console object

We reset all modes but forget to set them on the console object, too. The
AUTO_WRAP mode is the only mode that matters here, so we can ignore the
other modes.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video_drm: set EGL_DISPLAY correctly
David Herrmann [Sun, 24 Jun 2012 09:09:21 +0000 (11:09 +0200)]
uterm: video_drm: set EGL_DISPLAY correctly

We force EGL_DISPLAY to drm now. Otherwise, we might cause segfaults if
the EGL library tries to use the X11 egl-backend.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agomain: use --fbdev options to switch between DRM/fbdev
David Herrmann [Sun, 24 Jun 2012 09:01:25 +0000 (11:01 +0200)]
main: use --fbdev options to switch between DRM/fbdev

The new --fbdev option allows runtime switching between the two backends.
That is, we only use fbdev devices when --fbdev is given. Otherwise, DRM
is used.

Technically, it would also be possible to use both. However, almost every
DRM device does also register an fbdev device for backwards compatibility.
Therefore, we must avoid using both, the DRM and fbdev device of the same
display at the same time. As this would also mean dealing with failures in
one backend and then switching to the other, we avoid this for complexity
reasons. Who needs fbdev and drm simultaneously, anyway?

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoterminal: redraw on wake-up
David Herrmann [Sun, 24 Jun 2012 08:53:04 +0000 (10:53 +0200)]
terminal: redraw on wake-up

The drm video backend does automatically blit the framebuffer on wake-up,
however, the fbdev backend does not. Hence, we automatically redraw on
wake-up in the terminal backend now.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoterminal: avoid adding displays multiple times
David Herrmann [Sun, 24 Jun 2012 08:52:05 +0000 (10:52 +0200)]
terminal: avoid adding displays multiple times

We now enumerate displays on wake-up so we might end up adding a display
twice. This causes the display to be redrawn twice which is nasty so we
avoid it.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoui: do not modify callback parameters
David Herrmann [Sun, 24 Jun 2012 08:50:16 +0000 (10:50 +0200)]
ui: do not modify callback parameters

Other registered callbacks might get confused if we change the parameters.
Hence, we use a static copy for further actions.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agofont: support 2D blitting
David Herrmann [Sun, 24 Jun 2012 08:32:42 +0000 (10:32 +0200)]
font: support 2D blitting

If OpenGL is not supported, we now allow 2D blitting into the video
framebuffer as alternative to shaders.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovideo: return -EOPNOTSUPP in video_use without OpenGL
David Herrmann [Sun, 24 Jun 2012 08:31:34 +0000 (10:31 +0200)]
video: return -EOPNOTSUPP in video_use without OpenGL

If OpenGL is not supported, we should _not_ return 0. Otherwise, there is
not convenient way to detect this scenario.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoui: enumerate displays on wakeup
David Herrmann [Sun, 24 Jun 2012 08:30:28 +0000 (10:30 +0200)]
ui: enumerate displays on wakeup

We might have missed a display when our handler was not registered, yet.
So enumerate these displays on wakeup so we can be sure that we have all
displays registered with the terminal subsystem.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agomain: do not depend on OpenGL
David Herrmann [Sun, 24 Jun 2012 08:28:40 +0000 (10:28 +0200)]
main: do not depend on OpenGL

We currently try activating the OpenGL context when adding a video device
to a seat. However, not all video backends provide OpenGL contexts so
remove this restriction. The terminal subsystem does all this by itself
now.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoterminal: create shader only when OpenGL is available
David Herrmann [Sun, 24 Jun 2012 08:27:46 +0000 (10:27 +0200)]
terminal: create shader only when OpenGL is available

If the video backend does not provide an OpenGL context, there is no need
to create the gl shaders. We then use the 2D blitting functions instead.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoterminal: add debug message when removing display
David Herrmann [Sun, 24 Jun 2012 08:27:07 +0000 (10:27 +0200)]
terminal: add debug message when removing display

This can help a lot when debugging displays that are registered multiple
times with a terminal object.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video_fbdev: fix debug statements
David Herrmann [Sat, 23 Jun 2012 23:09:40 +0000 (01:09 +0200)]
uterm: video_fbdev: fix debug statements

Remove blitting debug statements as it is working fine now.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: add internal header for blitting support
David Herrmann [Sat, 23 Jun 2012 23:07:01 +0000 (01:07 +0200)]
uterm: add internal header for blitting support

Whoops, forgot to add it in the fbdev commit. Pushing it now so it works
again.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video_drm: set .blit to NULL
David Herrmann [Sat, 23 Jun 2012 23:06:16 +0000 (01:06 +0200)]
uterm: video_drm: set .blit to NULL

We do not support blitting via drm (yet) so set it to NULL explicitely.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video_fbdev: make double-buffering optional
David Herrmann [Sat, 23 Jun 2012 23:04:50 +0000 (01:04 +0200)]
uterm: video_fbdev: make double-buffering optional

This makes double-buffering optional as not all drivers provide this. In
fact, only very few drivers implement this. Furthermore, this also adds a
fake display-mode that is used instead of NULL. Otherwise, the screen
object might not work as expected.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video: add blitting support
David Herrmann [Sat, 23 Jun 2012 23:03:56 +0000 (01:03 +0200)]
uterm: video: add blitting support

All backends that do not provide OpenGL contexts can not implement buffer
blitting so we can at least draw rectangular areas to the framebuffer.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: add WAKEUP and SLEEP signals
David Herrmann [Sat, 23 Jun 2012 23:01:47 +0000 (01:01 +0200)]
uterm: add WAKEUP and SLEEP signals

Notify all listeners when going to sleep or waking up. This allows saving
energy in the listeners by not redrawing the screen while being asleep.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video_fbdev: save stride on open
David Herrmann [Sat, 23 Jun 2012 20:54:52 +0000 (22:54 +0200)]
uterm: video_fbdev: save stride on open

Copy stride into the fbdev structure so we can use it throughout the code.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video_fbdev: test whether bpp is power of 8
David Herrmann [Sat, 23 Jun 2012 20:52:24 +0000 (22:52 +0200)]
uterm: video_fbdev: test whether bpp is power of 8

I have never seen something different but lets be sure here and test for
modulo-8.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video_fbdev: remove double check
David Herrmann [Sat, 23 Jun 2012 20:46:42 +0000 (22:46 +0200)]
uterm: video_fbdev: remove double check

There is no need to check this twice so move it beyond the last vinfo
modification.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video_fbdev: discard non-xrgb32 devices
David Herrmann [Sat, 23 Jun 2012 20:39:48 +0000 (22:39 +0200)]
uterm: video_fbdev: discard non-xrgb32 devices

We discard all non-xrgb32 devices for simplicity reasons for now. We
definitely need to support other devices in future but that makes the
backend unnecessarily complex at the beginning so avoid it.

This also moves the resolution-change to the beginning and duplicates the
tests so we can be totally sure that everything is right after setting the
correct values.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video: return -EOPNOTSUPP when opengl is not supported
David Herrmann [Sat, 23 Jun 2012 20:04:06 +0000 (22:04 +0200)]
uterm: video: return -EOPNOTSUPP when opengl is not supported

When the backend does not implement display_use() then we return an error
instead of success to notify the application that it should use blitting
instead.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: video_fbdev: remove display_use()
David Herrmann [Sat, 23 Jun 2012 19:56:43 +0000 (21:56 +0200)]
uterm: video_fbdev: remove display_use()

fbdev does not support OpenGL contexts so there is no need to implement
this function. Instead, we will provide blitting support later.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agobuild: add gtk-doc
David Herrmann [Sat, 23 Jun 2012 18:09:19 +0000 (20:09 +0200)]
build: add gtk-doc

This adds gtk-doc documentation builds to kmscon. All documentation is
build in a central place due to gtk-doc restrictions.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoeloop: turn comment into non-gtkdoc comment
David Herrmann [Sat, 23 Jun 2012 18:06:44 +0000 (20:06 +0200)]
eloop: turn comment into non-gtkdoc comment

This comment does not use gtk-doc syntax so remove the extra *.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agouterm: add fbdev video backend
David Herrmann [Sat, 23 Jun 2012 16:24:44 +0000 (18:24 +0200)]
uterm: add fbdev video backend

This adds a fully working fbdev backend to the uterm library. This allows
us to create our rendering pipeline on any linux machine.

The fbdev backend is not yet hooked up into kmscon. There are still some
remaining issues as we do not have OpenGL on fbdev if EGL is not compiled
with fbdev backend (which is usually not).

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoconsole: rewrite console layer
David Herrmann [Sun, 17 Jun 2012 13:53:33 +0000 (15:53 +0200)]
console: rewrite console layer

This is a rewrite of the whole console layer so we can remove the
kmscon_buffer object to speed up the console.

This removes the split between the scroll region and the two margins so we
can resize margins in O(1). This also correctly merges the remaining
console modes so vte does not have to track them.

Btw. vim runs smoothly on kmscon with this console layer now (finally!).

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agofblog: add kernel patches for fblog driver
David Herrmann [Sat, 16 Jun 2012 22:29:04 +0000 (00:29 +0200)]
fblog: add kernel patches for fblog driver

The fblog drivers provides a replacement for fbcon and prints all kernel
log messages to all available framebuffer devices.

As long as the driver is not upstream, I will keep it here for reference.
See linux-serial@vger.kernel.org for discussion.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: allow setting margins
David Herrmann [Wed, 30 May 2012 18:49:39 +0000 (20:49 +0200)]
vte: allow setting margins

Support changing margin size of the terminal.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: fix HUP/HVP positioning bug
David Herrmann [Wed, 30 May 2012 18:48:22 +0000 (20:48 +0200)]
vte: fix HUP/HVP positioning bug

We mixed up X/Y coordinates. HUP and HVP send them reversed as often used
in terminals. Anyway, now it works correctly.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: more verbose SM/RM debug messages
David Herrmann [Wed, 30 May 2012 18:47:40 +0000 (20:47 +0200)]
vte: more verbose SM/RM debug messages

When we receive an unknown SM/RM message, be more verbose about what
exactly was received on the log output.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: add DA support
David Herrmann [Wed, 30 May 2012 18:37:33 +0000 (20:37 +0200)]
vte: add DA support

Send Device attributes as VT220.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoconf: set TERM by default to vt220
David Herrmann [Wed, 30 May 2012 18:29:29 +0000 (20:29 +0200)]
conf: set TERM by default to vt220

vt220 seems to be the best alternative to "xterm" and should work with
every application.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: support cursor positioning CSI
David Herrmann [Wed, 30 May 2012 17:42:11 +0000 (19:42 +0200)]
vte: support cursor positioning CSI

Most of the CSIs for cursor movement are already implemented but HVP and
CUP are missing. This adds both CSI handlers to the VTE layer.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: update TODO items
David Herrmann [Wed, 30 May 2012 17:03:34 +0000 (19:03 +0200)]
vte: update TODO items

Both flags have been implemented recently so remove the TODO flag in the
comments.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoconsole/vte: draw cursor
David Herrmann [Wed, 30 May 2012 17:02:17 +0000 (19:02 +0200)]
console/vte: draw cursor

If HIDE_CURSOR mode is not set, we draw the cursor at the current
position.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: set color to white on cell reset
David Herrmann [Wed, 30 May 2012 16:58:52 +0000 (18:58 +0200)]
vte: set color to white on cell reset

For the same reason as we reset it to white on cell creation we need to
reset it to white on cell reset. Otherwise we have odd artifacts in
reverse video mode.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: correctly reset console flags on soft reset
David Herrmann [Wed, 30 May 2012 16:53:43 +0000 (18:53 +0200)]
vte: correctly reset console flags on soft reset

We didn't reset the console flags on soft reset, however, this is required
to correctly synchronize the flags between vte and console.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoconsole: reset font color to white by default
David Herrmann [Wed, 30 May 2012 16:52:20 +0000 (18:52 +0200)]
console: reset font color to white by default

Reset font color to white for new cells. This allows us to draw reversed
cells that are not occupied by any value. Otherwise, these cells would be
still black if reversed.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agofont: draw backgrounds
David Herrmann [Wed, 30 May 2012 16:48:59 +0000 (18:48 +0200)]
font: draw backgrounds

The pango backend now correctly draws colored or uncolored backgrounds.
This is needed to support drawing cursors.

We currently do not optimize this for performance. In fact, this reduces
performance a lot and we could avoid drawing backgrounds if we cleared the
background to the same color before. However, this also means we currently
could move drawing the background into the console backend again. The
transparency feature is awful, anyway and I don't see any reason
supporting it.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoterminal/vte/console: support inverse-screen-mode
David Herrmann [Wed, 30 May 2012 16:19:49 +0000 (18:19 +0200)]
terminal/vte/console: support inverse-screen-mode

In inverse screen mode we switch background and foreground colors. As our
console layer supports transparent backgrounds, we have to do this in the
terminal layer.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoconsole: allow retrieving console flags
David Herrmann [Wed, 30 May 2012 16:19:03 +0000 (18:19 +0200)]
console: allow retrieving console flags

This adds a new function that allows external subsystems to retrieve the
current flags of the console.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement origin mode
David Herrmann [Wed, 30 May 2012 16:00:06 +0000 (18:00 +0200)]
vte: implement origin mode

Convert the old relative-addressing mode of the console layer into origin
mode flag.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoconsole: allow setting/resetting flags
David Herrmann [Wed, 30 May 2012 15:54:31 +0000 (17:54 +0200)]
console: allow setting/resetting flags

Instead of writing a function for each mode we now accept flags for the
console object. For now the flags are unused but other flags will be
added.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement local echo mode
David Herrmann [Wed, 30 May 2012 15:44:12 +0000 (17:44 +0200)]
vte: implement local echo mode

If SEND_RECEIVE_MODE is not set, we have to echo all data we send out.
That is, all escape sequences and all characters are directly interpreted
by us. To avoid recursion, we use a simply protection. However, some
escape sequences don't make sense in echo mode but we don't care here, as
this is a problem of the application/client, not us.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: add ESC+c hard-reset TODO item
David Herrmann [Wed, 30 May 2012 15:43:36 +0000 (17:43 +0200)]
vte: add ESC+c hard-reset TODO item

ESC+c is a hard-reset and now marked as TODO item.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: ignore unset csi parameters in SM/RM
David Herrmann [Wed, 30 May 2012 15:24:49 +0000 (17:24 +0200)]
vte: ignore unset csi parameters in SM/RM

When reading Setmode/Resetmode parameters, we should ignore all unset
parameters instead of printing a warning.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: fix up comments
David Herrmann [Tue, 29 May 2012 15:16:18 +0000 (17:16 +0200)]
vte: fix up comments

Fix up trivial comments. Remove already realized TODO items and add some
additional TODOs.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: add auto-wrap support
David Herrmann [Tue, 29 May 2012 15:07:53 +0000 (17:07 +0200)]
vte: add auto-wrap support

VT510 manual says auto-wrap is disabled by default but most applications
(including bash) expect it to be on, therefore we enable it by default.

The console layer already supported it but the vte layer wasn't hooked up.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoconsole: support INSERT mode
David Herrmann [Tue, 29 May 2012 14:57:04 +0000 (16:57 +0200)]
console: support INSERT mode

When INSERT mode is enabled, we move all following characters to the right
and drop all characters that are moved beyond the margin.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: set default flags on soft-reset
David Herrmann [Tue, 29 May 2012 14:20:22 +0000 (16:20 +0200)]
vte: set default flags on soft-reset

Instead of clearing all flags we set the default flags now. They are
defined by the VT220 to be set this way on soft-reset.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: fix indentation of do_csi()
David Herrmann [Tue, 29 May 2012 14:06:03 +0000 (16:06 +0200)]
vte: fix indentation of do_csi()

Use correct indentation for switch/case blocks.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: fix up SM/RM modes
David Herrmann [Tue, 29 May 2012 13:27:50 +0000 (15:27 +0200)]
vte: fix up SM/RM modes

The ANSI and DEC modes overlap so fix up parsing of flags.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: declare all available modes
David Herrmann [Tue, 29 May 2012 13:17:17 +0000 (15:17 +0200)]
vte: declare all available modes

This adds dummy modes for all available DEC/ANSI modes. This does not
actually implement them but adds support for SM/RM CSI sequences.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement DECKPAM and DECKPNM
David Herrmann [Tue, 29 May 2012 12:39:05 +0000 (14:39 +0200)]
vte: implement DECKPAM and DECKPNM

Both either set or reset the keypad application mode.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement SM/RM
David Herrmann [Tue, 29 May 2012 12:35:49 +0000 (14:35 +0200)]
vte: implement SM/RM

SM/RM - SetMode/ResetMode are used to explicitely set terminal modes. DEC
private modes and ANSI modes are separated as defined by VT220.

We currently only parse modes that we actually support. Further modes may
follow.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement S7C1T and S8C1T
David Herrmann [Tue, 29 May 2012 12:19:52 +0000 (14:19 +0200)]
vte: implement S7C1T and S8C1T

Both escape sequences are used to change the C1 escape character mode from
using 8bit or 7bit escape codes/sequences.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: set FLAG_USE_C1 when C1-8bit mode is requested
David Herrmann [Tue, 29 May 2012 12:14:38 +0000 (14:14 +0200)]
vte: set FLAG_USE_C1 when C1-8bit mode is requested

We currently do not support sending C1 controls as 8bit characters because
this doesn't make any sense with UTF-8. However, in 7bit/8bit
compatibility mode the client can request this. As nearly all clients are
backwards compatible to VT100 they also support C1 controls as 7bit
sequences, though, so there is really no time pressure to implement
FLAG_USE_C1.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement charset shift in/out
David Herrmann [Tue, 29 May 2012 12:08:28 +0000 (14:08 +0200)]
vte: implement charset shift in/out

This allows changing GL and GR to the values set in G0-G3. GL can also be
set temporarily, GR currently does not have such a mode.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: trivial: fix switch indentation
David Herrmann [Tue, 29 May 2012 11:59:19 +0000 (13:59 +0200)]
vte: trivial: fix switch indentation

We use kernel-style switch-case indentation.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: support designating charsets
David Herrmann [Tue, 29 May 2012 11:52:23 +0000 (13:52 +0200)]
vte: support designating charsets

With ESC {int} {final} you can designate G0-G3. If no {int} is given, we
fall back to the default escape sequences that replace the C1 set.
However, the user might designate other sets manually so we ignore all
escape sequences that have intermediates set.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: collect csi flags +, ( and )
David Herrmann [Tue, 29 May 2012 11:31:33 +0000 (13:31 +0200)]
vte: collect csi flags +, ( and )

All three flags are most often used with basic escape sequences and not
with CSI sequences, however, we treat them generic here to avoid more
complexity.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: support temporary charsets and g0-g3
David Herrmann [Tue, 29 May 2012 11:23:22 +0000 (13:23 +0200)]
vte: support temporary charsets and g0-g3

Temporary charsets are only used for the next graphics character that is
displayed. After that, the VTE returns to the previous charset. On
soft-reset we also reset these temporary slots.

This also adds the g0-g3 backend slots that can be set by the client and
allow mapping of arbitrary other charsets into gl/gr/glr/grt.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: always perform soft reset on DECSCL
David Herrmann [Tue, 29 May 2012 11:18:14 +0000 (13:18 +0200)]
vte: always perform soft reset on DECSCL

All DECSCL modes automatically perform a soft reset.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: add support for GL/GR mappings
David Herrmann [Tue, 29 May 2012 11:09:38 +0000 (13:09 +0200)]
vte: add support for GL/GR mappings

This allows mapping different charsets into GL/GR.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: perform soft reset on initialization
David Herrmann [Tue, 29 May 2012 11:06:56 +0000 (13:06 +0200)]
vte: perform soft reset on initialization

Instead of copying all that initialization stuff around, we simply perform
a soft reset on initialization.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: handle XK_Find and XK_Select
David Herrmann [Tue, 29 May 2012 10:46:09 +0000 (12:46 +0200)]
vte: handle XK_Find and XK_Select

Even though modern keyboard often do not include such keys, we should
handle them correctly, anyway. For the sake of backwards-compatibility.

This also comes in handy if you define these keys separately. The
functions that are implemented by many applications with these keys are
handy, indeed.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: move long csi-handlers into separate function
David Herrmann [Tue, 29 May 2012 10:43:58 +0000 (12:43 +0200)]
vte: move long csi-handlers into separate function

Avoid making do_csi() too big. So put long csi-handlers into separate
functions.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement DECSTR / soft-reset
David Herrmann [Tue, 29 May 2012 10:40:01 +0000 (12:40 +0200)]
vte: implement DECSTR / soft-reset

On soft-reset, all internal state is reset but the screen data is kept
alive.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: corectly implement DECSCL
David Herrmann [Tue, 29 May 2012 10:37:18 +0000 (12:37 +0200)]
vte: corectly implement DECSCL

We now select the 8bit/7bit modes if the client sends an DECSCL requesting
a conformance level.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: select CSI flags
David Herrmann [Tue, 29 May 2012 10:30:17 +0000 (12:30 +0200)]
vte: select CSI flags

Correctly select CSI flags like ?, !, > or $ and more. We actually don't
care about the position of these flags as other CSI parameters are just
digits.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: add kmscon_vte_reset()
David Herrmann [Tue, 29 May 2012 10:16:18 +0000 (12:16 +0200)]
vte: add kmscon_vte_reset()

This performs a soft reset of the VTE state machine. It does not affect
the console that is bound to the VTE, though.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: support 7bit and 8bit modes
David Herrmann [Tue, 29 May 2012 10:01:23 +0000 (12:01 +0200)]
vte: support 7bit and 8bit modes

In 7bit and 8bit modes we treat incoming characters as single-byte
characters and map them directly to the corresponding value instead of
using the UTF8 state-machine.

This allows using old non-utf8 applications with this VT. However, default
value is still UTF8-mode and you must explicitely request a conformance
level to change that. If you selected such a mode once, you can only
return to UTF8-mode by performing a soft/hard-reset.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agoconsole: add kmscon_console_reset() dummy
David Herrmann [Tue, 29 May 2012 09:39:07 +0000 (11:39 +0200)]
console: add kmscon_console_reset() dummy

This dummy is supposed to hard-reset the console. As the console is far
from finished, we keep it as dummy and implement this later.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agounicode: introduce kmscon_utf8_mach_reset()
David Herrmann [Tue, 29 May 2012 09:13:49 +0000 (11:13 +0200)]
unicode: introduce kmscon_utf8_mach_reset()

Sometimes we need to reset the UTF8 state-machine, for instance when
resetting the VTE. This function simply resets the internal state to
KMSCON_UTF8_START so we start all over on the next input character.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agobuild: define KMSCON_ENABLE_DEBUG on --enable-debug
David Herrmann [Tue, 29 May 2012 09:12:21 +0000 (11:12 +0200)]
build: define KMSCON_ENABLE_DEBUG on --enable-debug

We build several internal libraries and to keep the namespaces apart we
also need different debug constants. Therefore, introduce the new
KMSCON_ENABLE_DEBUG constant which is for every debug object in base
kmscon code.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: add special character sets
David Herrmann [Tue, 29 May 2012 08:27:46 +0000 (10:27 +0200)]
vte: add special character sets

Since vt100 (and extended with vt220) you can load different character
sets into GL and GR. As we use UTF-8 as base encoding, we actually do not
need them but have to support it for backwards compatibility. For further
information, see the comments in vte_charsets.c.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement DECSCL 'p' CSI
David Herrmann [Mon, 28 May 2012 16:09:12 +0000 (18:09 +0200)]
vte: implement DECSCL 'p' CSI

DECSCL is used to select compatibility modes. We do not support the VT100
compatibility mode explicitely or the VT220 mode, however, we always send
7-bit control characters and support escape sequences from both series so
we can safely ignore DECSCL.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement NEL
David Herrmann [Mon, 28 May 2012 15:58:46 +0000 (17:58 +0200)]
vte: implement NEL

NEL is a shortcut for newline independent of the line-feed/new-line mode.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: implement IND and RI
David Herrmann [Mon, 28 May 2012 15:56:44 +0000 (17:56 +0200)]
vte: implement IND and RI

IND and RI both either move one row up or down and perform scroll up/down
if required.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: explicitely ignore DEL
David Herrmann [Mon, 28 May 2012 15:51:51 +0000 (17:51 +0200)]
vte: explicitely ignore DEL

Add dummy to do_execute() which explicitely ignores the DEL input.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: show reversed question mark on SUB
David Herrmann [Mon, 28 May 2012 15:47:51 +0000 (17:47 +0200)]
vte: show reversed question mark on SUB

When receiving SUB we now correctly write a reversed question mark into
the buffer. We still cancel the ongoing escape sequence, this worked even
without this patch.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: remove kmscon_console_backspace()
David Herrmann [Mon, 28 May 2012 14:49:56 +0000 (16:49 +0200)]
vte: remove kmscon_console_backspace()

This function is not needed at all. Instead, we should simply move one
character to the left on incoming backspace. There is no need to handle
auto-wrap on backspace.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: answer with ACK to an ENQ enquiry
David Herrmann [Mon, 28 May 2012 14:48:08 +0000 (16:48 +0200)]
vte: answer with ACK to an ENQ enquiry

Other emulators might ignore this. However, the easiest way to answer to
an enquiry is probably ACK.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: use callback for outgoing messages
David Herrmann [Mon, 28 May 2012 14:38:56 +0000 (16:38 +0200)]
vte: use callback for outgoing messages

VTE now requires a new callback that is called when we want to send
messages to the pty etc. This is needed if we want to send messages as
responses to incoming data. Otherwise, we would have way too much overhead
assembling composed messages.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: add ctrl+0-9 shortcuts
David Herrmann [Mon, 28 May 2012 13:39:25 +0000 (15:39 +0200)]
vte: add ctrl+0-9 shortcuts

The VT220 defines some additional shortcuts to send escape codes with
ctrl+<num>. Implement these as aliases to the same well-defined shortcuts.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
12 years agovte: handle F1-F20 correctly
David Herrmann [Mon, 28 May 2012 13:30:17 +0000 (15:30 +0200)]
vte: handle F1-F20 correctly

F1-F4 are mapped to the keypad keys as these keys were not available on
VT220. F5 is special mapped and F6-F20 correspond to the same keys on the
keyboards for VT220.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>