| 1 | /*
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| 2 | * Copyright (c) 2006 Josef Cejka
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| 3 | * Copyright (c) 2011 Petr Koupy
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup libc
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| 31 | * @{
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| 32 | */
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| 33 | /** @file
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| 34 | */
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| 35 |
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| 36 | #ifndef LIBC_IO_CHARFIELD_H_
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| 37 | #define LIBC_IO_CHARFIELD_H_
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| 38 |
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| 39 | #include <sys/types.h>
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| 40 | #include <bool.h>
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| 41 | #include <io/color.h>
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| 42 | #include <io/style.h>
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| 43 | #include <io/pixel.h>
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| 44 |
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| 45 | typedef enum {
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| 46 | CHAR_FLAG_NONE = 0,
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| 47 | CHAR_FLAG_DIRTY = 1
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| 48 | } char_flags_t;
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| 49 |
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| 50 | typedef enum {
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| 51 | CHAR_ATTR_STYLE,
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| 52 | CHAR_ATTR_INDEX,
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| 53 | CHAR_ATTR_RGB
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| 54 | } char_attr_type_t;
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| 55 |
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| 56 | typedef struct {
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| 57 | console_color_t bgcolor;
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| 58 | console_color_t fgcolor;
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| 59 | console_color_attr_t attr;
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| 60 | } char_attr_index_t;
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| 61 |
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| 62 | typedef struct {
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| 63 | pixel_t bgcolor;
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| 64 | pixel_t fgcolor;
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| 65 | } char_attr_rgb_t;
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| 66 |
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| 67 | typedef union {
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| 68 | console_style_t style;
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| 69 | char_attr_index_t index;
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| 70 | char_attr_rgb_t rgb;
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| 71 | } char_attr_val_t;
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| 72 |
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| 73 | typedef struct {
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| 74 | char_attr_type_t type;
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| 75 | char_attr_val_t val;
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| 76 | } char_attrs_t;
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| 77 |
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| 78 | typedef struct {
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| 79 | wchar_t ch;
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| 80 | char_attrs_t attrs;
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| 81 | char_flags_t flags;
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| 82 | } charfield_t;
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| 83 |
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| 84 | static inline bool attrs_same(char_attrs_t a1, char_attrs_t a2)
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| 85 | {
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| 86 | if (a1.type != a2.type)
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| 87 | return false;
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| 88 |
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| 89 | switch (a1.type) {
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| 90 | case CHAR_ATTR_STYLE:
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| 91 | return (a1.val.style == a2.val.style);
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| 92 | case CHAR_ATTR_INDEX:
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| 93 | return (a1.val.index.bgcolor == a2.val.index.bgcolor)
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| 94 | && (a1.val.index.fgcolor == a2.val.index.fgcolor)
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| 95 | && (a1.val.index.attr == a2.val.index.attr);
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| 96 | case CHAR_ATTR_RGB:
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| 97 | return (a1.val.rgb.bgcolor == a2.val.rgb.bgcolor)
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| 98 | && (a1.val.rgb.fgcolor == a2.val.rgb.fgcolor);
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| 99 | }
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| 100 |
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| 101 | return false;
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| 102 | }
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| 103 |
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| 104 | #endif
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| 105 |
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| 106 | /** @}
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| 107 | */
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