Subversion Repositories HelenOS

Rev

Rev 4419 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 4419 Rev 4439
Line 25... Line 25...
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
27
 */
28
 
28
 
29
/** @addtogroup console
29
/** @addtogroup console
30
 * @{
30
 * @{
31
 */
31
 */
32
/** @file
32
/** @file
33
 */
33
 */
34
 
34
 
35
#ifndef __SCREENBUFFER_H__
35
#ifndef SCREENBUFFER_H__
36
#define __SCREENBUFFER_H__
36
#define SCREENBUFFER_H__
37
 
37
 
38
#include <stdint.h>
38
#include <stdint.h>
39
#include <sys/types.h>
39
#include <sys/types.h>
40
 
40
 
41
#define DEFAULT_FOREGROUND 0x0  /**< default console foreground color */
41
#define DEFAULT_FOREGROUND 0x0       /**< default console foreground color */
42
#define DEFAULT_BACKGROUND 0xf0f0f0 /**< default console background color */
42
#define DEFAULT_BACKGROUND 0xf0f0f0  /**< default console background color */
43
 
43
 
44
typedef struct {
44
typedef struct {
45
    uint8_t style;
45
    uint8_t style;
46
} attr_style_t;
46
} attr_style_t;
47
 
47
 
Line 50... Line 50...
50
    uint8_t bg_color;
50
    uint8_t bg_color;
51
    uint8_t flags;
51
    uint8_t flags;
52
} attr_idx_t;
52
} attr_idx_t;
53
 
53
 
54
typedef struct {
54
typedef struct {
55
    uint32_t bg_color;      /**< background color */
55
    uint32_t bg_color;  /**< background color */
56
    uint32_t fg_color;      /**< foreground color */
56
    uint32_t fg_color;  /**< foreground color */
57
} attr_rgb_t;
57
} attr_rgb_t;
58
 
58
 
59
typedef struct {
59
typedef struct {
60
    enum {
60
    enum {
61
        at_style,
61
        at_style,
Line 64... Line 64...
64
    } t;
64
    } t;
65
    union {
65
    union {
66
        attr_style_t s;
66
        attr_style_t s;
67
        attr_idx_t i;
67
        attr_idx_t i;
68
        attr_rgb_t r;
68
        attr_rgb_t r;
69
    } a;
69
    } a;
70
} attrs_t;
70
} attrs_t;
71
 
71
 
72
/** One field on screen. It contain one character and its attributes. */
72
/** One field on screen. It contain one character and its attributes. */
73
typedef struct {
73
typedef struct {
74
    wchar_t character;      /**< Character itself */
74
    wchar_t character;  /**< Character itself */
75
    attrs_t attrs;          /**< Character`s attributes */
75
    attrs_t attrs;      /**< Character`s attributes */
76
} keyfield_t;
76
} keyfield_t;
77
 
77
 
78
/** Structure for buffering state of one virtual console.
78
/** Structure for buffering state of one virtual console.
79
 */
79
 */
80
typedef struct {
80
typedef struct {
-
 
81
    keyfield_t *buffer;               /**< Screen content - characters and
81
    keyfield_t *buffer;         /**< Screen content - characters and their attributes. Used as a circular buffer. */
82
                                           their attributes (used as a circular buffer) */
82
    unsigned int size_x, size_y;        /**< Number of columns and rows */
83
    unsigned int size_x;              /**< Number of columns  */
-
 
84
    unsigned int size_y;              /**< Number of rows */
-
 
85
   
83
    unsigned int position_x, position_y;    /**< Coordinates of last printed character for determining cursor position */
86
    /** Coordinates of last printed character for determining cursor position */
-
 
87
    unsigned int position_x;
-
 
88
    unsigned int position_y;
-
 
89
   
84
    attrs_t attrs;              /**< Current attributes. */
90
    attrs_t attrs;                    /**< Current attributes. */
85
    unsigned int top_line;          /**< Points to buffer[][] line that will be printed at screen as the first line */
91
    unsigned int top_line;            /**< Points to buffer[][] line that will
-
 
92
                                           be printed at screen as the first line */
86
    unsigned char is_cursor_visible;    /**< Cursor state - default is visible */
93
    unsigned char is_cursor_visible;  /**< Cursor state - default is visible */
87
} screenbuffer_t;
94
} screenbuffer_t;
88
 
95
 
-
 
96
/** Returns keyfield for position on screen
-
 
97
 *
89
/** Returns keyfield for position on screen. Screenbuffer->buffer is cyclic buffer so we must couted in index of the topmost line.
98
 * Screenbuffer->buffer is cyclic buffer so we
-
 
99
 * must couted in index of the topmost line.
-
 
100
 *
90
 * @param scr   screenbuffer
101
 * @param scr Screenbuffer
91
 * @param x position on screen
102
 * @param x   Position on screen
92
 * @param y position on screen
103
 * @param y   Position on screen
-
 
104
 *
93
 * @return  keyfield structure with character and its attributes on x,y
105
 * @return Keyfield structure with character and its attributes on x, y
-
 
106
 *
94
 */
107
 */
95
static inline keyfield_t *get_field_at(screenbuffer_t *scr, unsigned int x, unsigned int y)
108
static inline keyfield_t *get_field_at(screenbuffer_t *scr, unsigned int x, unsigned int y)
96
{
109
{
97
    return scr->buffer + x + ((y + scr->top_line) % scr->size_y) * scr->size_x;
110
    return scr->buffer + x + ((y + scr->top_line) % scr->size_y) * scr->size_x;
98
}
111
}
99
 
112
 
100
/** Compares two sets of attributes.
113
/** Compares two sets of attributes.
-
 
114
 *
101
 * @param s1 first style
115
 * @param s1 First style
102
 * @param s2 second style
116
 * @param s2 Second style
-
 
117
 *
103
 * @return nonzero on equality
118
 * @return Nonzero on equality
-
 
119
 *
104
 */
120
 */
105
static inline int attrs_same(attrs_t a1, attrs_t a2)
121
static inline int attrs_same(attrs_t a1, attrs_t a2)
106
{
122
{
107
    if (a1.t != a2.t) return 0;
123
    if (a1.t != a2.t)
-
 
124
        return 0;
108
 
125
   
109
    switch (a1.t) {
126
    switch (a1.t) {
-
 
127
    case at_style:
110
    case at_style: return a1.a.s.style == a2.a.s.style;
128
        return (a1.a.s.style == a2.a.s.style);
-
 
129
    case at_idx:
111
    case at_idx: return a1.a.i.fg_color == a2.a.i.fg_color &&
130
        return (a1.a.i.fg_color == a2.a.i.fg_color)
112
        a1.a.i.bg_color == a2.a.i.bg_color &&
131
            && (a1.a.i.bg_color == a2.a.i.bg_color)
113
        a1.a.i.flags == a2.a.i.flags;
132
            && (a1.a.i.flags == a2.a.i.flags);
-
 
133
    case at_rgb:
114
    case at_rgb: return a1.a.r.fg_color == a2.a.r.fg_color &&
134
        return (a1.a.r.fg_color == a2.a.r.fg_color)
115
        a1.a.r.bg_color == a2.a.r.bg_color;
135
            && (a1.a.r.bg_color == a2.a.r.bg_color);
116
    }
136
    }
117
}
137
}
118
 
138
 
119
 
139
 
120
void screenbuffer_putchar(screenbuffer_t *scr, wchar_t c);
140
void screenbuffer_putchar(screenbuffer_t *scr, wchar_t c);
Line 130... Line 150...
130
void screenbuffer_set_rgb_color(screenbuffer_t *scr, unsigned int fg_color,
150
void screenbuffer_set_rgb_color(screenbuffer_t *scr, unsigned int fg_color,
131
    unsigned int bg_color);
151
    unsigned int bg_color);
132
 
152
 
133
#endif
153
#endif
134
 
154
 
135
 
-
 
136
/** @}
155
/** @}
137
 */
156
 */
138
 
-