| 32,8 → 32,8 |
|---|
| /** @file |
| */ |
| |
| #ifndef __SCREENBUFFER_H__ |
| #define __SCREENBUFFER_H__ |
| #ifndef SCREENBUFFER_H__ |
| #define SCREENBUFFER_H__ |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| 78,19 → 78,32 |
|---|
| /** Structure for buffering state of one virtual console. |
| */ |
| typedef struct { |
| keyfield_t *buffer; /**< Screen content - characters and their attributes. Used as a circular buffer. */ |
| unsigned int size_x, size_y; /**< Number of columns and rows */ |
| unsigned int position_x, position_y; /**< Coordinates of last printed character for determining cursor position */ |
| keyfield_t *buffer; /**< Screen content - characters and |
| their attributes (used as a circular buffer) */ |
| unsigned int size_x; /**< Number of columns */ |
| unsigned int size_y; /**< Number of rows */ |
| |
| /** Coordinates of last printed character for determining cursor position */ |
| unsigned int position_x; |
| unsigned int position_y; |
| |
| attrs_t attrs; /**< Current attributes. */ |
| unsigned int top_line; /**< Points to buffer[][] line that will be printed at screen as the first line */ |
| unsigned int top_line; /**< Points to buffer[][] line that will |
| be printed at screen as the first line */ |
| unsigned char is_cursor_visible; /**< Cursor state - default is visible */ |
| } screenbuffer_t; |
| |
| /** Returns keyfield for position on screen. Screenbuffer->buffer is cyclic buffer so we must couted in index of the topmost line. |
| * @param scr screenbuffer |
| * @param x position on screen |
| * @param y position on screen |
| * @return keyfield structure with character and its attributes on x,y |
| /** Returns keyfield for position on screen |
| * |
| * Screenbuffer->buffer is cyclic buffer so we |
| * must couted in index of the topmost line. |
| * |
| * @param scr Screenbuffer |
| * @param x Position on screen |
| * @param y Position on screen |
| * |
| * @return Keyfield structure with character and its attributes on x, y |
| * |
| */ |
| static inline keyfield_t *get_field_at(screenbuffer_t *scr, unsigned int x, unsigned int y) |
| { |
| 98,21 → 111,28 |
|---|
| } |
| |
| /** Compares two sets of attributes. |
| * @param s1 first style |
| * @param s2 second style |
| * @return nonzero on equality |
| * |
| * @param s1 First style |
| * @param s2 Second style |
| * |
| * @return Nonzero on equality |
| * |
| */ |
| static inline int attrs_same(attrs_t a1, attrs_t a2) |
| { |
| if (a1.t != a2.t) return 0; |
| if (a1.t != a2.t) |
| return 0; |
| |
| switch (a1.t) { |
| case at_style: return a1.a.s.style == a2.a.s.style; |
| case at_idx: return a1.a.i.fg_color == a2.a.i.fg_color && |
| a1.a.i.bg_color == a2.a.i.bg_color && |
| a1.a.i.flags == a2.a.i.flags; |
| case at_rgb: return a1.a.r.fg_color == a2.a.r.fg_color && |
| a1.a.r.bg_color == a2.a.r.bg_color; |
| case at_style: |
| return (a1.a.s.style == a2.a.s.style); |
| case at_idx: |
| return (a1.a.i.fg_color == a2.a.i.fg_color) |
| && (a1.a.i.bg_color == a2.a.i.bg_color) |
| && (a1.a.i.flags == a2.a.i.flags); |
| case at_rgb: |
| return (a1.a.r.fg_color == a2.a.r.fg_color) |
| && (a1.a.r.bg_color == a2.a.r.bg_color); |
| } |
| } |
| |
| 132,7 → 152,5 |
|---|
| |
| #endif |
| |
| |
| /** @} |
| */ |
| |