| 1 | /*
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| 2 | * Copyright (c) 2011 Martin Decky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | #ifndef OUTPUT_OUTPUT_H_
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| 30 | #define OUTPUT_OUTPUT_H_
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| 31 |
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| 32 | #include <stdbool.h>
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| 33 | #include <loc.h>
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| 34 | #include <io/console.h>
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| 35 | #include <io/style.h>
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| 36 | #include <io/color.h>
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| 37 | #include <io/chargrid.h>
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| 38 |
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| 39 | #define NAME "output"
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| 40 |
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| 41 | struct outdev;
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| 42 |
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| 43 | typedef struct {
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| 44 | int (* yield)(struct outdev *dev);
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| 45 | int (* claim)(struct outdev *dev);
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| 46 |
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| 47 | void (* get_dimensions)(struct outdev *dev, sysarg_t *cols,
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| 48 | sysarg_t *rows);
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| 49 | console_caps_t (* get_caps)(struct outdev *dev);
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| 50 |
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| 51 | void (* cursor_update)(struct outdev *dev, sysarg_t prev_col,
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| 52 | sysarg_t prev_row, sysarg_t col, sysarg_t row, bool visible);
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| 53 | void (* char_update)(struct outdev *dev, sysarg_t col, sysarg_t row);
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| 54 | } outdev_ops_t;
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| 55 |
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| 56 | typedef struct outdev {
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| 57 | link_t link;
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| 58 |
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| 59 | sysarg_t cols;
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| 60 | sysarg_t rows;
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| 61 | char_attrs_t attrs;
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| 62 |
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| 63 | chargrid_t *backbuf;
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| 64 | sysarg_t top_row;
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| 65 |
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| 66 | outdev_ops_t ops;
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| 67 | void *data;
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| 68 | } outdev_t;
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| 69 |
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| 70 | extern outdev_t *outdev_register(outdev_ops_t *, void *);
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| 71 |
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| 72 | #endif
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