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caca.h.3caca

NAME

caca.h - The libcaca public header.

SYNOPSIS

Data Structures

struct caca_event
Handling of user events.

Defines

#define CACA_API_VERSION_1

#define CACA_BLACK 0x00

#define CACA_BLUE 0x01

#define CACA_GREEN 0x02

#define CACA_CYAN 0x03

#define CACA_RED 0x04

#define CACA_MAGENTA 0x05

#define CACA_BROWN 0x06

#define CACA_LIGHTGRAY 0x07

#define CACA_DARKGRAY 0x08

#define CACA_LIGHTBLUE 0x09

#define CACA_LIGHTGREEN 0x0a

#define CACA_LIGHTCYAN 0x0b

#define CACA_LIGHTRED 0x0c

#define CACA_LIGHTMAGENTA 0x0d

#define CACA_YELLOW 0x0e

#define CACA_WHITE 0x0f

#define CACA_DEFAULT 0x10

#define CACA_TRANSPARENT 0x20

#define CACA_BOLD 0x01

#define CACA_ITALICS 0x02

#define CACA_UNDERLINE 0x04

#define CACA_BLINK 0x08

#define CACA_MAGIC_FULLWIDTH 0x000ffffe

Typedefs

typedef struct caca_canvas caca_canvas_t

typedef struct caca_dither caca_dither_t

typedef struct caca_font caca_font_t

typedef struct caca_file caca_file_t

typedef struct caca_display caca_display_t

typedef struct caca_event caca_event_t

Enumerations

enum caca_event_type { CACA_EVENT_NONE = 0x0000, CACA_EVENT_KEY_PRESS = 0x0001, CACA_EVENT_KEY_RELEASE = 0x0002, CACA_EVENT_MOUSE_PRESS = 0x0004, CACA_EVENT_MOUSE_RELEASE = 0x0008, CACA_EVENT_MOUSE_MOTION = 0x0010, CACA_EVENT_RESIZE = 0x0020, CACA_EVENT_QUIT = 0x0040, CACA_EVENT_ANY = 0xffff }
User event type enumeration.
enum caca_key { CACA_KEY_UNKNOWN = 0x00, CACA_KEY_CTRL_A = 0x01, CACA_KEY_CTRL_B = 0x02, CACA_KEY_CTRL_C = 0x03, CACA_KEY_CTRL_D = 0x04, CACA_KEY_CTRL_E = 0x05, CACA_KEY_CTRL_F = 0x06, CACA_KEY_CTRL_G = 0x07, CACA_KEY_BACKSPACE = 0x08, CACA_KEY_TAB = 0x09, CACA_KEY_CTRL_J = 0x0a, CACA_KEY_CTRL_K = 0x0b, CACA_KEY_CTRL_L = 0x0c, CACA_KEY_RETURN = 0x0d, CACA_KEY_CTRL_N = 0x0e, CACA_KEY_CTRL_O = 0x0f, CACA_KEY_CTRL_P = 0x10, CACA_KEY_CTRL_Q = 0x11, CACA_KEY_CTRL_R = 0x12, CACA_KEY_PAUSE = 0x13, CACA_KEY_CTRL_T = 0x14, CACA_KEY_CTRL_U = 0x15, CACA_KEY_CTRL_V = 0x16, CACA_KEY_CTRL_W = 0x17, CACA_KEY_CTRL_X = 0x18, CACA_KEY_CTRL_Y = 0x19, CACA_KEY_CTRL_Z = 0x1a, CACA_KEY_ESCAPE = 0x1b, CACA_KEY_DELETE = 0x7f, CACA_KEY_UP = 0x111, CACA_KEY_DOWN = 0x112, CACA_KEY_LEFT = 0x113, CACA_KEY_RIGHT = 0x114, CACA_KEY_INSERT = 0x115, CACA_KEY_HOME = 0x116, CACA_KEY_END = 0x117, CACA_KEY_PAGEUP = 0x118, CACA_KEY_PAGEDOWN = 0x119, CACA_KEY_F1 = 0x11a, CACA_KEY_F2 = 0x11b, CACA_KEY_F3 = 0x11c, CACA_KEY_F4 = 0x11d, CACA_KEY_F5 = 0x11e, CACA_KEY_F6 = 0x11f, CACA_KEY_F7 = 0x120, CACA_KEY_F8 = 0x121, CACA_KEY_F9 = 0x122, CACA_KEY_F10 = 0x123, CACA_KEY_F11 = 0x124, CACA_KEY_F12 = 0x125, CACA_KEY_F13 = 0x126, CACA_KEY_F14 = 0x127, CACA_KEY_F15 = 0x128 }
Special key values.

Functions

__extern caca_canvas_t * caca_create_canvas (int, int)
Initialise a libcaca canvas.
__extern int caca_manage_canvas (caca_canvas_t *, int(*)(void *), void *)
Manage a canvas.
__extern int caca_unmanage_canvas (caca_canvas_t *, int(*)(void *), void *)
Unmanage a canvas.
__extern int caca_set_canvas_size (caca_canvas_t *, int, int)
Resize a canvas.
__extern int caca_get_canvas_width (caca_canvas_t const *)
Get the canvas width.
__extern int caca_get_canvas_height (caca_canvas_t const *)
Get the canvas height.
__extern uint8_t const * caca_get_canvas_chars (caca_canvas_t const *)
Get the canvas character array.
__extern uint8_t const * caca_get_canvas_attrs (caca_canvas_t const *)
Get the canvas attribute array.
__extern int caca_free_canvas (caca_canvas_t *)
Uninitialise libcaca.
__extern int caca_rand (int, int)
Generate a random integer within a range.
__extern char const * caca_get_version (void)
Return the libcaca version.
__extern int caca_gotoxy (caca_canvas_t *, int, int)
Set cursor position.
__extern int caca_get_cursor_x (caca_canvas_t const *)
Get X cursor position.
__extern int caca_get_cursor_y (caca_canvas_t const *)
Get Y cursor position.
__extern int caca_put_char (caca_canvas_t *, int, int, uint32_t)
Print an ASCII or Unicode character.
__extern uint32_t caca_get_char (caca_canvas_t const *, int, int)
Get the Unicode character at the given coordinates.
__extern int caca_put_str (caca_canvas_t *, int, int, char const *)
Print a string.
__extern int caca_printf (caca_canvas_t *, int, int, char const *,...)
Print a formated string.
__extern int caca_clear_canvas (caca_canvas_t *)
Clear the canvas.
__extern int caca_set_canvas_handle (caca_canvas_t *, int, int)
Set cursor handle.
__extern int caca_get_canvas_handle_x (caca_canvas_t const *)
Get X handle position.
__extern int caca_get_canvas_handle_y (caca_canvas_t const *)
Get Y handle position.
__extern int caca_blit (caca_canvas_t *, int, int, caca_canvas_t const *, caca_canvas_t const *)
Blit a canvas onto another one.
__extern int caca_set_canvas_boundaries (caca_canvas_t *, int, int, int, int)
Set a canvas' new boundaries.
__extern int caca_invert (caca_canvas_t *)
Invert a canvas' colours.
__extern int caca_flip (caca_canvas_t *)
Flip a canvas horizontally.
__extern int caca_flop (caca_canvas_t *)
Flip a canvas vertically.
__extern int caca_rotate_180 (caca_canvas_t *)
Rotate a canvas.
__extern int caca_rotate_left (caca_canvas_t *)
Rotate a canvas, 90 degrees counterclockwise.
__extern int caca_rotate_right (caca_canvas_t *)
Rotate a canvas, 90 degrees counterclockwise.
__extern int caca_stretch_left (caca_canvas_t *)
Rotate and stretch a canvas, 90 degrees counterclockwise.
__extern int caca_stretch_right (caca_canvas_t *)
Rotate and stretch a canvas, 90 degrees clockwise.
__extern uint32_t caca_get_attr (caca_canvas_t const *, int, int)
Get the text attribute at the given coordinates.
__extern int caca_set_attr (caca_canvas_t *, uint32_t)
Set the default character attribute.
__extern int caca_put_attr (caca_canvas_t *, int, int, uint32_t)
Set the character attribute at the given coordinates.
__extern int caca_set_color_ansi (caca_canvas_t *, uint8_t, uint8_t)
Set the default colour pair for text (ANSI version).
__extern int caca_set_color_argb (caca_canvas_t *, uint16_t, uint16_t)
Set the default colour pair for text (truecolor version).
__extern uint8_t caca_attr_to_ansi (uint32_t)
Get DOS ANSI information from attribute.
__extern uint8_t caca_attr_to_ansi_fg (uint32_t)
Get ANSI foreground information from attribute.
__extern uint8_t caca_attr_to_ansi_bg (uint32_t)
Get ANSI background information from attribute.
__extern uint16_t caca_attr_to_rgb12_fg (uint32_t)
Get 12-bit RGB foreground information from attribute.
__extern uint16_t caca_attr_to_rgb12_bg (uint32_t)
Get 12-bit RGB background information from attribute.
__extern void caca_attr_to_argb64 (uint32_t, uint8_t[8])
Get 64-bit ARGB information from attribute.
__extern uint32_t caca_utf8_to_utf32 (char const *, size_t *)
Convert a UTF-8 character to UTF-32.
__extern size_t caca_utf32_to_utf8 (char *, uint32_t)
Convert a UTF-32 character to UTF-8.
__extern uint8_t caca_utf32_to_cp437 (uint32_t)
Convert a UTF-32 character to CP437.
__extern uint32_t caca_cp437_to_utf32 (uint8_t)
Convert a CP437 character to UTF-32.
__extern char caca_utf32_to_ascii (uint32_t)
Convert a UTF-32 character to ASCII.
__extern int caca_utf32_is_fullwidth (uint32_t)
Tell whether a UTF-32 character is fullwidth.
__extern int caca_draw_line (caca_canvas_t *, int, int, int, int, uint32_t)
Draw a line on the canvas using the given character.
__extern int caca_draw_polyline (caca_canvas_t *, int const x[], int const y[], int, uint32_t)
Draw a polyline.
__extern int caca_draw_thin_line (caca_canvas_t *, int, int, int, int)
Draw a thin line on the canvas, using ASCII art.
__extern int caca_draw_thin_polyline (caca_canvas_t *, int const x[], int const y[], int)
Draw an ASCII art thin polyline.
__extern int caca_draw_circle (caca_canvas_t *, int, int, int, uint32_t)
Draw a circle on the canvas using the given character.
__extern int caca_draw_ellipse (caca_canvas_t *, int, int, int, int, uint32_t)
Draw an ellipse on the canvas using the given character.
__extern int caca_draw_thin_ellipse (caca_canvas_t *, int, int, int, int)
Draw a thin ellipse on the canvas.
__extern int caca_fill_ellipse (caca_canvas_t *, int, int, int, int, uint32_t)
Fill an ellipse on the canvas using the given character.
__extern int caca_draw_box (caca_canvas_t *, int, int, int, int, uint32_t)
Draw a box on the canvas using the given character.
__extern int caca_draw_thin_box (caca_canvas_t *, int, int, int, int)
Draw a thin box on the canvas.
__extern int caca_draw_cp437_box (caca_canvas_t *, int, int, int, int)
Draw a box on the canvas using CP437 characters.
__extern int caca_fill_box (caca_canvas_t *, int, int, int, int, uint32_t)
Fill a box on the canvas using the given character.
__extern int caca_draw_triangle (caca_canvas_t *, int, int, int, int, int, int, uint32_t)
Draw a triangle on the canvas using the given character.
__extern int caca_draw_thin_triangle (caca_canvas_t *, int, int, int, int, int, int)
Draw a thin triangle on the canvas.
__extern int caca_fill_triangle (caca_canvas_t *, int, int, int, int, int, int, uint32_t)
Fill a triangle on the canvas using the given character.
__extern int caca_get_frame_count (caca_canvas_t const *)
Get the number of frames in a canvas.
__extern int caca_set_frame (caca_canvas_t *, int)
Activate a given canvas frame.
__extern char const * caca_get_frame_name (caca_canvas_t const *)
Get the current frame's name.
__extern int caca_set_frame_name (caca_canvas_t *, char const *)
Set the current frame's name.
__extern int caca_create_frame (caca_canvas_t *, int)
Add a frame to a canvas.
__extern int caca_free_frame (caca_canvas_t *, int)
Remove a frame from a canvas.
__extern caca_dither_t * caca_create_dither (int, int, int, int, uint32_t, uint32_t, uint32_t, uint32_t)
Create an internal dither object.
__extern int caca_set_dither_palette (caca_dither_t *, uint32_t r[], uint32_t g[], uint32_t b[], uint32_t a[])
Set the palette of an 8bpp dither object.
__extern int caca_set_dither_brightness (caca_dither_t *, float)
Set the brightness of a dither object.
__extern float caca_get_dither_brightness (caca_dither_t const *)
Get the brightness of a dither object.
__extern int caca_set_dither_gamma (caca_dither_t *, float)
Set the gamma of a dither object.
__extern float caca_get_dither_gamma (caca_dither_t const *)
Get the gamma of a dither object.
__extern int caca_set_dither_contrast (caca_dither_t *, float)
Set the contrast of a dither object.
__extern float caca_get_dither_contrast (caca_dither_t const *)
Get the contrast of a dither object.
__extern int caca_set_dither_antialias (caca_dither_t *, char const *)
Set dither antialiasing.
__extern char const *const * caca_get_dither_antialias_list (caca_dither_t const *)
Get available antialiasing methods.
__extern char const * caca_get_dither_antialias (caca_dither_t const *)
Get current antialiasing method.
__extern int caca_set_dither_color (caca_dither_t *, char const *)
Choose colours used for dithering.
__extern char const *const * caca_get_dither_color_list (caca_dither_t const *)
Get available colour modes.
__extern char const * caca_get_dither_color (caca_dither_t const *)
Get current colour mode.
__extern int caca_set_dither_charset (caca_dither_t *, char const *)
Choose characters used for dithering.
__extern char const *const * caca_get_dither_charset_list (caca_dither_t const *)
Get available dither character sets.
__extern char const * caca_get_dither_charset (caca_dither_t const *)
Get current character set.
__extern int caca_set_dither_algorithm (caca_dither_t *, char const *)
Set dithering algorithm.
__extern char const *const * caca_get_dither_algorithm_list (caca_dither_t const *)
Get dithering algorithms.
__extern char const * caca_get_dither_algorithm (caca_dither_t const *)
Get current dithering algorithm.
__extern int caca_dither_bitmap (caca_canvas_t *, int, int, int, int, caca_dither_t const *, void *)
Dither a bitmap on the canvas.
__extern int caca_free_dither (caca_dither_t *)
Free the memory associated with a dither.
__extern caca_font_t * caca_load_font (void const *, size_t)
Load a font from memory for future use.
__extern char const *const * caca_get_font_list (void)
Get available builtin fonts.
__extern int caca_get_font_width (caca_font_t const *)
Get a font's standard glyph width.
__extern int caca_get_font_height (caca_font_t const *)
Get a font's standard glyph height.
__extern uint32_t const * caca_get_font_blocks (caca_font_t const *)
Get a font's list of supported glyphs.
__extern int caca_render_canvas (caca_canvas_t const *, caca_font_t const *, void *, int, int, int)
Render the canvas onto an image buffer.
__extern int caca_free_font (caca_font_t *)
Free a font structure.
__extern int caca_canvas_set_figfont (caca_canvas_t *, char const *)

__extern int caca_put_figchar (caca_canvas_t *, uint32_t)

__extern int caca_flush_figlet (caca_canvas_t *)

__extern caca_file_t * caca_file_open (char const *, const char *)

__extern int caca_file_close (caca_file_t *)

__extern uint64_t caca_file_tell (caca_file_t *)

__extern size_t caca_file_read (caca_file_t *, void *, size_t)

__extern size_t caca_file_write (caca_file_t *, const void *, size_t)

__extern char * caca_file_gets (caca_file_t *, char *, int)

__extern int caca_file_eof (caca_file_t *)

__extern ssize_t caca_import_memory (caca_canvas_t *, void const *, size_t, char const *)

__extern ssize_t caca_import_file (caca_canvas_t *, char const *, char const *)

__extern char const *const * caca_get_import_list (void)

__extern void * caca_export_memory (caca_canvas_t const *, char const *, size_t *)

__extern char const *const * caca_get_export_list (void)

__extern caca_display_t * caca_create_display (caca_canvas_t *)
Attach a caca graphical context to a caca canvas.
__extern caca_display_t * caca_create_display_with_driver (caca_canvas_t *, char const *)
Attach a specific caca graphical context to a caca canvas.
__extern char const *const * caca_get_display_driver_list (void)
Get available display drivers.
__extern char const * caca_get_display_driver (caca_display_t *)
Return a caca graphical context's current output driver.
__extern int caca_set_display_driver (caca_display_t *, char const *)
Set the output driver.
__extern int caca_free_display (caca_display_t *)
Detach a caca graphical context from a caca backend context.
__extern caca_canvas_t * caca_get_canvas (caca_display_t *)
Get the canvas attached to a caca graphical context.
__extern int caca_refresh_display (caca_display_t *)
Flush pending changes and redraw the screen.
__extern int caca_set_display_time (caca_display_t *, int)
Set the refresh delay.
__extern int caca_get_display_time (caca_display_t const *)
Get the display's average rendering time.
__extern int caca_get_display_width (caca_display_t const *)
Get the display width.
__extern int caca_get_display_height (caca_display_t const *)
Get the display height.
__extern int caca_set_display_title (caca_display_t *, char const *)
Set the display title.
__extern int caca_set_mouse (caca_display_t *, int)
Show or hide the mouse pointer.
__extern int caca_set_cursor (caca_display_t *, int)
Show or hide the cursor.
__extern int caca_get_event (caca_display_t *, int, caca_event_t *, int)
Get the next mouse or keyboard input event.
__extern int caca_get_mouse_x (caca_display_t const *)
Return the X mouse coordinate.
__extern int caca_get_mouse_y (caca_display_t const *)
Return the Y mouse coordinate.
__extern enum caca_event_type caca_get_event_type (caca_event_t const *)
Return an event's type.
__extern int caca_get_event_key_ch (caca_event_t const *)
Return a key press or key release event's value.
__extern uint32_t caca_get_event_key_utf32 (caca_event_t const *)
Return a key press or key release event's Unicode value.
__extern int caca_get_event_key_utf8 (caca_event_t const *, char *)
Return a key press or key release event's UTF-8 value.
__extern int caca_get_event_mouse_button (caca_event_t const *)
Return a mouse press or mouse release event's button.
__extern int caca_get_event_mouse_x (caca_event_t const *)
Return a mouse motion event's X coordinate.
__extern int caca_get_event_mouse_y (caca_event_t const *)
Return a mouse motion event's Y coordinate.
__extern int caca_get_event_resize_width (caca_event_t const *)
Return a resize event's display width value.
__extern int caca_get_event_resize_height (caca_event_t const *)
Return a resize event's display height value.

Detailed Description

Version:

$Id$

Author:

Sam Hocevar <sam@zoy.org> This header contains the public types and functions that applications using libcaca may use.

Define Documentation

#define CACA_API_VERSION_1

libcaca API version

Typedef Documentation

typedef struct caca_canvas caca_canvas_t

libcaca canvas

typedef struct caca_dither caca_dither_t

dither structure

typedef struct caca_font caca_font_t

font structure

typedef struct caca_file caca_file_t

file handle structure

typedef struct caca_display caca_display_t

libcaca display context

typedef struct caca_event caca_event_t

libcaca event structure

Enumeration Type Documentation

enum caca_event_type

This enum serves two purposes:

•

Build listening masks for caca_get_event().

•

Define the type of a caca_event_t.

Enumerator:

CACA_EVENT_NONE

No event.

CACA_EVENT_KEY_PRESS

A key was pressed.

CACA_EVENT_KEY_RELEASE

A key was released.

CACA_EVENT_MOUSE_PRESS

A mouse button was pressed.

CACA_EVENT_MOUSE_RELEASE

A mouse button was released.

CACA_EVENT_MOUSE_MOTION

The mouse was moved.

CACA_EVENT_RESIZE

The window was resized.

CACA_EVENT_QUIT

The user requested to quit.

CACA_EVENT_ANY

Bitmask for any event.

enum caca_key

Special key values returned by caca_get_event() for which there is no printable ASCII equivalent.

Enumerator:

CACA_KEY_UNKNOWN

Unknown key.

CACA_KEY_CTRL_A

The Ctrl-A key.

CACA_KEY_CTRL_B

The Ctrl-B key.

CACA_KEY_CTRL_C

The Ctrl-C key.

CACA_KEY_CTRL_D

The Ctrl-D key.

CACA_KEY_CTRL_E

The Ctrl-E key.

CACA_KEY_CTRL_F

The Ctrl-F key.

CACA_KEY_CTRL_G

The Ctrl-G key.

CACA_KEY_BACKSPACE

The backspace key.

CACA_KEY_TAB

The tabulation key.

CACA_KEY_CTRL_J

The Ctrl-J key.

CACA_KEY_CTRL_K

The Ctrl-K key.

CACA_KEY_CTRL_L

The Ctrl-L key.

CACA_KEY_RETURN

The return key.

CACA_KEY_CTRL_N

The Ctrl-N key.

CACA_KEY_CTRL_O

The Ctrl-O key.

CACA_KEY_CTRL_P

The Ctrl-P key.

CACA_KEY_CTRL_Q

The Ctrl-Q key.

CACA_KEY_CTRL_R

The Ctrl-R key.

CACA_KEY_PAUSE

The pause key.

CACA_KEY_CTRL_T

The Ctrl-T key.

CACA_KEY_CTRL_U

The Ctrl-U key.

CACA_KEY_CTRL_V

The Ctrl-V key.

CACA_KEY_CTRL_W

The Ctrl-W key.

CACA_KEY_CTRL_X

The Ctrl-X key.

CACA_KEY_CTRL_Y

The Ctrl-Y key.

CACA_KEY_CTRL_Z

The Ctrl-Z key.

CACA_KEY_ESCAPE

The escape key.

CACA_KEY_DELETE

The delete key.

CACA_KEY_UP

The up arrow key.

CACA_KEY_DOWN

The down arrow key.

CACA_KEY_LEFT

The left arrow key.

CACA_KEY_RIGHT

The right arrow key.

CACA_KEY_INSERT

The insert key.

CACA_KEY_HOME

The home key.

CACA_KEY_END

The end key.

CACA_KEY_PAGEUP

The page up key.

CACA_KEY_PAGEDOWN

The page down key.

CACA_KEY_F1

The F1 key.

CACA_KEY_F2

The F2 key.

CACA_KEY_F3

The F3 key.

CACA_KEY_F4

The F4 key.

CACA_KEY_F5

The F5 key.

CACA_KEY_F6

The F6 key.

CACA_KEY_F7

The F7 key.

CACA_KEY_F8

The F8 key.

CACA_KEY_F9

The F9 key.

CACA_KEY_F10

The F10 key.

CACA_KEY_F11

The F11 key.

CACA_KEY_F12

The F12 key.

CACA_KEY_F13

The F13 key.

CACA_KEY_F14

The F14 key.

CACA_KEY_F15

The F15 key.

Author

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