128 lines
6.1 KiB
C
128 lines
6.1 KiB
C
/* $XTermId: graphics.h,v 1.22 2015/04/23 00:47:24 tom Exp $ */
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/*
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* Copyright 2013-2014,2015 by Ross Combs
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* Copyright 2013-2014,2015 by Thomas E. Dickey
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*
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* All Rights Reserved
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name(s) of the above copyright
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* holders shall not be used in advertising or otherwise to promote the
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* sale, use or other dealings in this Software without prior written
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* authorization.
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*/
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#ifndef included_graphics_h
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#define included_graphics_h
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/* *INDENT-OFF* */
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#include <ptyx.h>
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#if OPT_GRAPHICS
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#define CHANNEL_MAX 100
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typedef struct {
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short r, g, b;
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} ColorRegister;
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typedef unsigned short RegisterNum;
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#define MAX_COLOR_REGISTERS 1024U
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#define COLOR_HOLE ((RegisterNum)MAX_COLOR_REGISTERS)
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#define MAX_GRAPHICS 16U
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typedef struct {
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RegisterNum *pixels;
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ColorRegister *private_color_registers;
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ColorRegister *color_registers;
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char color_registers_used[MAX_COLOR_REGISTERS];
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XtermWidget xw;
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int max_width; /* largest image which can be stored */
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int max_height; /* largest image which can be stored */
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unsigned valid_registers; /* for wrap-around behavior */
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int actual_width; /* size of image before scaling */
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int actual_height; /* size of image before scaling */
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int private_colors; /* if not using the shared color registers */
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int charrow; /* upper left starting point in characters */
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int charcol; /* upper left starting point in characters */
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int pixw; /* width of graphic pixels in screen pixels */
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int pixh; /* height of graphic pixels in screen pixels */
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int bufferid; /* which screen buffer the graphic is associated with */
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unsigned type; /* type of graphic 0==sixel, 1...NUM_REGIS_PAGES==ReGIS page */
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unsigned id; /* sequential id used for preserving layering */
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int valid; /* if the graphic has been initialized */
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int dirty; /* if the graphic needs to be redrawn */
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int hidden; /* if the graphic should not be displayed */
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} Graphic;
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extern Graphic *get_new_graphic(XtermWidget xw, int charrow, int charcol, unsigned type);
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extern Graphic *get_new_or_matching_graphic(XtermWidget xw, int charrow, int charcol, int actual_width, int actual_height, unsigned type);
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extern RegisterNum read_pixel(Graphic *graphic, int x, int y);
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extern void draw_solid_pixel(Graphic *graphic, int x, int y, unsigned color);
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extern void draw_solid_rectangle(Graphic *graphic, int x1, int y1, int x2, int y2, unsigned color);
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extern void draw_solid_line(Graphic *graphic, int x1, int y1, int x2, int y2, unsigned color);
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extern void copy_overlapping_area(Graphic *graphic, int src_x, int src_y, int dst_x, int dst_y, unsigned w, unsigned h, unsigned default_color);
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extern void hls2rgb(int h, int l, int s, short *r, short *g, short *b);
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extern void dump_graphic(Graphic const *graphic);
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extern unsigned get_color_register_count(TScreen const *screen);
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extern void update_color_register(Graphic *graphic, unsigned color, int r, int g, int b);
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extern RegisterNum find_color_register(ColorRegister const *color_registers, int r, int g, int b);
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extern void chararea_clear_displayed_graphics(TScreen const *screen, int leftcol, int toprow, int ncols, int nrows);
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extern void pixelarea_clear_displayed_graphics(TScreen const *screen, int winx, int winy, int w, int h);
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extern void refresh_displayed_graphics(XtermWidget xw, int leftcol, int toprow, int ncols, int nrows);
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extern void refresh_modified_displayed_graphics(XtermWidget xw);
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extern void reset_displayed_graphics(TScreen const *screen);
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extern void scroll_displayed_graphics(XtermWidget xw, int rows);
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#ifdef NO_LEAKS
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extern void noleaks_graphics(void);
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#endif
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#else
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#define get_new_graphic(xw, charrow, charcol, type) /* nothing */
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#define get_new_or_matching_graphic(xw, charrow, charcol, actual_width, actual_height, type) /* nothing */
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#define read_pixel(graphic, x, y) /* nothing */
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#define draw_solid_pixel(graphic, x, y, color) /* nothing */
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#define draw_solid_rectangle(graphic, x1, y1, x2, y2, color) /* nothing */
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#define draw_solid_line(graphic, x1, y1, x2, y2, color) /* nothing */
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#define copy_overlapping_area(graphic, src_x, src_y, dst_x, dst_y, w, h, default_color) /* nothing */
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#define hls2rgb(h, l, s, r, g, b) /* nothing */
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#define dump_graphic(graphic) /* nothing */
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#define get_color_register_count(screen) /* nothing */
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#define update_color_register(graphic, color, r, g, b) /* nothing */
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#define find_color_register(color_registers, r, g, b) /* nothing */
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#define chararea_clear_displayed_graphics(screen, leftcol, toprow, ncols, nrows) /* nothing */
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#define pixelarea_clear_displayed_graphics(screen, winx, winy, w, h) /* nothing */
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#define refresh_displayed_graphics(xw, leftcol, toprow, ncols, nrows) /* nothing */
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#define refresh_modified_displayed_graphics(xw) /* nothing */
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#define reset_displayed_graphics(screen) /* nothing */
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#define scroll_displayed_graphics(xw, rows) /* nothing */
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#endif
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/* *INDENT-ON* */
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#endif /* included_graphics_h */
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