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Member "xterm-350/graphics.h" (29 May 2016, 6725 Bytes) of package /linux/misc/xterm-350.tgz:


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    1 /* $XTermId: graphics.h,v 1.23 2016/05/29 16:11:41 tom Exp $ */
    2 
    3 /*
    4  * Copyright 2013-2015,2016 by Ross Combs
    5  * Copyright 2013-2015,2016 by Thomas E. Dickey
    6  *
    7  *                         All Rights Reserved
    8  *
    9  * Permission is hereby granted, free of charge, to any person obtaining a
   10  * copy of this software and associated documentation files (the
   11  * "Software"), to deal in the Software without restriction, including
   12  * without limitation the rights to use, copy, modify, merge, publish,
   13  * distribute, sublicense, and/or sell copies of the Software, and to
   14  * permit persons to whom the Software is furnished to do so, subject to
   15  * the following conditions:
   16  *
   17  * The above copyright notice and this permission notice shall be included
   18  * in all copies or substantial portions of the Software.
   19  *
   20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   23  * IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
   24  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   25  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
   26  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   27  *
   28  * Except as contained in this notice, the name(s) of the above copyright
   29  * holders shall not be used in advertising or otherwise to promote the
   30  * sale, use or other dealings in this Software without prior written
   31  * authorization.
   32  */
   33 
   34 #ifndef included_graphics_h
   35 #define included_graphics_h
   36 /* *INDENT-OFF* */
   37 
   38 #include <ptyx.h>
   39 
   40 #if OPT_GRAPHICS
   41 
   42 #define CHANNEL_MAX 100
   43 
   44 typedef struct {
   45     short r, g, b;
   46 } ColorRegister;
   47 
   48 typedef unsigned short RegisterNum;
   49 
   50 #define MAX_COLOR_REGISTERS 1024U
   51 #define COLOR_HOLE ((RegisterNum)MAX_COLOR_REGISTERS)
   52 
   53 #define MAX_GRAPHICS 16U
   54 
   55 typedef struct {
   56     RegisterNum *pixels;
   57     ColorRegister *private_color_registers;
   58     ColorRegister *color_registers;
   59     char color_registers_used[MAX_COLOR_REGISTERS];
   60     XtermWidget xw;
   61     int max_width;              /* largest image which can be stored */
   62     int max_height;             /* largest image which can be stored */
   63     unsigned valid_registers;   /* for wrap-around behavior */
   64     int actual_width;           /* size of image before scaling */
   65     int actual_height;          /* size of image before scaling */
   66     int private_colors;         /* if not using the shared color registers */
   67     int charrow;                /* upper left starting point in characters */
   68     int charcol;                /* upper left starting point in characters */
   69     int pixw;                   /* width of graphic pixels in screen pixels */
   70     int pixh;                   /* height of graphic pixels in screen pixels */
   71     int bufferid;               /* which screen buffer the graphic is associated with */
   72     unsigned type;              /* type of graphic 0==sixel, 1...NUM_REGIS_PAGES==ReGIS page */
   73     unsigned id;                /* sequential id used for preserving layering */
   74     int valid;                  /* if the graphic has been initialized */
   75     int dirty;                  /* if the graphic needs to be redrawn */
   76     int hidden;                 /* if the graphic should not be displayed */
   77 } Graphic;
   78 
   79 extern Graphic *get_new_graphic(XtermWidget /* xw */, int /* charrow */, int /* charcol */, unsigned /* type */);
   80 extern Graphic *get_new_or_matching_graphic(XtermWidget /* xw */, int /* charrow */, int /* charcol */, int /* actual_width */, int /* actual_height */, unsigned /* type */);
   81 extern RegisterNum read_pixel(Graphic */* graphic */, int /* x */, int /* y */);
   82 extern void draw_solid_pixel(Graphic */* graphic */, int /* x */, int /* y */, unsigned /* color */);
   83 extern void draw_solid_rectangle(Graphic */* graphic */, int /* x1 */, int /* y1 */, int /* x2 */, int /* y2 */, unsigned /* color */);
   84 extern void draw_solid_line(Graphic */* graphic */, int /* x1 */, int /* y1 */, int /* x2 */, int /* y2 */, unsigned /* color */);
   85 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 */);
   86 extern void hls2rgb(int /* h */, int /* l */, int /* s */, short */* r */, short */* g */, short */* b */);
   87 extern void dump_graphic(Graphic const */* graphic */);
   88 extern unsigned get_color_register_count(TScreen const */* screen */);
   89 extern void update_color_register(Graphic */* graphic */, unsigned /* color */, int /* r */, int /* g */, int /* b */);
   90 extern RegisterNum find_color_register(ColorRegister const */* color_registers */, int /* r */, int /* g */, int /* b */);
   91 extern void chararea_clear_displayed_graphics(TScreen const */* screen */, int /* leftcol */, int /* toprow */, int /* ncols */, int /* nrows */);
   92 extern void pixelarea_clear_displayed_graphics(TScreen const */* screen */, int /* winx */, int /* winy */, int /* w */, int /* h */);
   93 extern void refresh_displayed_graphics(XtermWidget /* xw */, int /* leftcol */, int /* toprow */, int /* ncols */, int /* nrows */);
   94 extern void refresh_modified_displayed_graphics(XtermWidget /* xw */);
   95 extern void reset_displayed_graphics(TScreen const */* screen */);
   96 extern void scroll_displayed_graphics(XtermWidget /* xw */, int /* rows */);
   97 
   98 #ifdef NO_LEAKS
   99 extern void noleaks_graphics(void);
  100 #endif
  101 
  102 #else
  103 
  104 #define get_new_graphic(xw, charrow, charcol, type) /* nothing */
  105 #define get_new_or_matching_graphic(xw, charrow, charcol, actual_width, actual_height, type) /* nothing */
  106 #define read_pixel(graphic, x, y) /* nothing */
  107 #define draw_solid_pixel(graphic, x, y, color) /* nothing */
  108 #define draw_solid_rectangle(graphic, x1, y1, x2, y2, color) /* nothing */
  109 #define draw_solid_line(graphic, x1, y1, x2, y2, color) /* nothing */
  110 #define copy_overlapping_area(graphic, src_x, src_y, dst_x, dst_y, w, h, default_color) /* nothing */
  111 #define hls2rgb(h, l, s, r, g, b) /* nothing */
  112 #define dump_graphic(graphic) /* nothing */
  113 #define get_color_register_count(screen) /* nothing */
  114 #define update_color_register(graphic, color, r, g, b) /* nothing */
  115 #define find_color_register(color_registers, r, g, b) /* nothing */
  116 #define chararea_clear_displayed_graphics(screen, leftcol, toprow, ncols, nrows) /* nothing */
  117 #define pixelarea_clear_displayed_graphics(screen, winx, winy, w, h) /* nothing */
  118 #define refresh_displayed_graphics(xw, leftcol, toprow, ncols, nrows) /* nothing */
  119 #define refresh_modified_displayed_graphics(xw) /* nothing */
  120 #define reset_displayed_graphics(screen) /* nothing */
  121 #define scroll_displayed_graphics(xw, rows) /* nothing */
  122 
  123 #endif
  124 
  125 /* *INDENT-ON* */
  126 
  127 #endif /* included_graphics_h */