terminal: drop unfinished code

This drops the libsystemd-terminal and systemd-consoled code for various
reasons:

 * It's been sitting there unfinished for over a year now and won't get
   finished any time soon.

 * Since its initial creation, several parts need significant rework: The
   input handling should be replaced with the now commonly used libinput,
   the drm accessors should coordinate the handling of mode-object
   hotplugging (including split connectors) with other DRM users, and the
   internal library users should be converted to sd-device and friends.

 * There is still significant kernel work required before sd-console is
   really useful. This includes, but is not limited to, simpledrm and
   drmlog.

 * The authority daemon is needed before all this code can be used for
   real. And this will definitely take a lot more time to get done as
   no-one else is currently working on this, but me.

 * kdbus maintenance has taken up way more time than I thought and it has
   much higher priority. I don't see me spending much time on the
   terminal code in the near future.

If anyone intends to hack on this, please feel free to contact me. I'll
gladly help you out with any issues. Once kdbus and authorityd are
finished (whenever that will be..) I'll definitely pick this up again. But
until then, lets reduce compile times and maintenance efforts on this code
and drop it for now.

1 files changed, 0 insertions, 137 deletions

diff --git a/src/libsystemd-terminal/unifont-def.h b/src/libsystemd-terminal/unifont-def.h
deleted file mode 100644
index 3847a2cf6c..0000000000
--- a/src/libsystemd-terminal/unifont-def.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright (C) 2014 David Herrmann <dh.herrmann@gmail.com>
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#pragma once
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include "sparse-endian.h"
-#include "util.h"
-
-typedef struct unifont_header unifont_header;
-typedef struct unifont_glyph_header unifont_glyph_header;
-
-/*
- * Unifont: On-disk data
- * Conventional font-formats have the problem that you have to pre-render each
- * glyph before you can use it. If you just need one glyph, you have to parse
- * the font-file until you found that glyph.
- * GNU-Unifont is a bitmap font with very good Unicode coverage. All glyphs are
- * (n*8)x16 bitmaps. Our on-disk data stores all those glyphs pre-compiled with
- * fixed offsets. Therefore, the font-file can be mmap()ed and all glyphs can
- * be accessed in O(1) (because all glyphs have the same size and thus their
- * offsets can be easily computed). This guarantees, that the kernel only loads
- * the pages that are really accessed. Thus, we have a far lower overhead than
- * traditional font-formats like BDF. Furthermore, the backing file is read-only
- * and can be shared in memory between multiple users.
- *
- * The binary-format starts with a fixed header:
- *
- *      | 2bytes | 2bytes | 2bytes | 2bytes |
- *
- *      +-----------------------------------+
- *      |             SIGNATURE             |   8 bytes
- *      +-----------------+-----------------+
- *      |  COMPAT FLAGS   | INCOMPAT FLAGS  |   8 bytes
- *      +-----------------+--------+--------+
- *      |   HEADER SIZE   |GH-SIZE |G-STRIDE|   8 bytes
- *      +-----------------+--------+--------+
- *      |          GLYPH BODY SIZE          |   8 bytes
- *      +-----------------------------------+
- *
- *  * The 8 bytes signature must be set to the ASCII string "DVDHRMUF".
- *  * The 4 bytes compatible-flags field contains flags for new features that
- *    might be added in the future and which are compatible to older parsers.
- *  * The 4 bytes incompatible-flags field contains flags for new features that
- *    might be added in the future and which are incompatible to old parses.
- *    Thus, if you encounter an unknown bit set, you must abort!
- *  * The 4 bytes header-size field contains the size of the header in bytes. It
- *    must be at least 32 (the size of this fixed header). If new features are
- *    added, it might be increased. It can also be used to add padding to the
- *    end of the header.
- *  * The 2 bytes glyph-header-size field specifies the size of each glyph
- *    header in bytes (see below).
- *  * The 2 bytes glyph-stride field specifies the stride of each line of glyph
- *    data in "bytes per line".
- *  * The 8 byte glyph-body-size field defines the size of each glyph body in
- *    bytes.
- *
- * After the header, the file can contain padding bytes, depending on the
- * header-size field. Everything beyond the header+padding is treated as a big
- * array of glyphs. Each glyph looks like this:
- *
- *      |              1 byte               |
- *
- *      +-----------------------------------+
- *      |               WIDTH               |   1 byte
- *      +-----------------------------------+
- *      ~              PADDING              ~
- *      +-----------------------------------+
- *      ~                                   ~
- *      ~                                   ~
- *      ~                DATA               ~
- *      ~                                   ~
- *      ~                                   ~
- *      +-----------------------------------+
- *
- *  * The first byte specifies the width of the glyph. If it is 0, the glyph
- *    must be treated as non-existent.
- *    All glyphs are "8*n" pixels wide and "16" pixels high. The width-field
- *    specifies the width multiplier "n".
- *  * After the width field padding might be added. This depends on the global
- *    glyph-header-size field. It defines the total size of each glyph-header.
- *    After the glyph-header+padding, the data-field starts.
- *  * The data-field contains a byte-array of bitmap data. The array is always
- *    as big as specified in the global glyph-body-size header field. This might
- *    include padding.
- *    The array contains all 16 lines of bitmap information for that glyph. The
- *    stride is given in the global glyph-stride header field. This can be used
- *    to add padding after each line.
- *    Each line is encoded as 1 bit per pixel bitmap. That is, each byte encodes
- *    data for 8 pixels (left most pixel is encoded in the LSB, right most pixel
- *    in the MSB). The width field defines the number of bytes valid per line.
- *    For width==1, you need 1 byte to encode the 8 pixels. The stride defines
- *    where the encoding of the next line starts.
- *    Any data beyond the 16th line is padding and must be ignored.
- */
-
-/* path to binary file */
-#define UNIFONT_PATH "/usr/share/systemd/unifont-glyph-array.bin"
-
-/* header-size of version 1 */
-#define UNIFONT_HEADER_SIZE_MIN 32
-
-struct unifont_header {
-        /* fields available in version 1 */
-        uint8_t signature[8];
-        le32_t compatible_flags;
-        le32_t incompatible_flags;
-        le32_t header_size;
-        le16_t glyph_header_size;
-        le16_t glyph_stride;
-        le64_t glyph_body_size;
-} _packed_;
-
-struct unifont_glyph_header {
-        /* fields available in version 1 */
-        uint8_t width;
-} _packed_;