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112 lines
3.7 KiB
C
112 lines
3.7 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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* Copyright (c) 2026 Michael Grant <mgrant@grant.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef TMUX_IMAGE_H
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#define TMUX_IMAGE_H
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#ifdef ENABLE_IMAGES
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#error image support is not ready yet
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struct grid;
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struct grid_line;
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struct image;
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struct image_line;
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struct image_store;
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struct screen;
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struct screen_write_ctx;
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struct sixel_image;
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/* Maximum image size in bytes. */
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#define IMAGE_SIZE_LIMIT (64 * 1024 * 1024)
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/* View of all or part of an image. */
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struct image_view {
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/* Position and size in the image, in pixels. */
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u_int x;
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u_int y;
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u_int width;
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u_int height;
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/* Size after scaling, in pixels. */
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u_int scaled_width;
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u_int scaled_height;
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/* Destination canvas size and offset in pixels. */
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u_int canvas_width;
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u_int canvas_height;
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u_int canvas_xoff;
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u_int canvas_yoff;
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/* Destination size in terminal cells. */
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u_int sx;
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u_int sy;
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};
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/* image.c */
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struct image *image_create(u_int, u_int, u_int, u_int, u_int, u_int,
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u_char *);
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struct image *image_create_view(struct image *, struct image_view *);
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struct image *image_find(u_int);
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u_int image_get_id(struct image *);
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void image_ref(struct image *);
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void image_free(struct image *);
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void image_get_size(struct image *, u_int *, u_int *);
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void image_get_canvas_size(struct image *, u_int *, u_int *);
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void image_get_size_in_cells(struct image *, u_int *, u_int *);
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const u_char *image_get_pixels(struct image *, size_t *, size_t *);
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void image_size_in_cells(u_int, u_int, u_int, u_int, u_int *,
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u_int *);
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void image_get_pixel_area(struct image *, u_int, u_int, u_int,
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u_int, u_int *, u_int *, u_int *, u_int *);
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/* image-grid.c */
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void image_grid_add(struct grid *, struct image *, u_int, u_int,
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u_int, u_int, u_int, u_int);
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void image_grid_remove(struct grid *, u_int, u_int, u_int, u_int);
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void image_grid_free_line(struct grid *, struct grid_line *);
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void image_grid_free(struct grid *);
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void image_grid_move_cells(struct grid *, u_int, u_int, u_int,
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u_int);
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void image_grid_duplicate_lines(struct grid *, u_int, struct grid *,
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u_int, u_int);
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int image_grid_line_has_images(struct grid_line *);
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int image_grid_area_has_images(struct grid *, u_int, u_int, u_int,
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u_int);
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void image_redraw_area(struct screen_write_ctx *, u_int, u_int,
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u_int, u_int);
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void image_redraw_all(struct screen_write_ctx *);
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void image_redraw_scroll(struct screen_write_ctx *);
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void image_damage_screen(struct screen_write_ctx *, u_int, u_int,
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u_int, u_int);
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void image_write(struct screen_write_ctx *, struct image *, u_int);
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/* image-sixel.c */
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#define SIXEL_COLOUR_REGISTERS 1024
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struct sixel_image *sixel_parse(const char *, size_t, u_int, u_int, u_int,
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u_int);
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void sixel_free(struct sixel_image *);
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void sixel_log(struct sixel_image *);
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struct image *sixel_to_image(struct sixel_image *);
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void sixel_write(struct screen_write_ctx *, struct sixel_image *,
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u_int);
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#endif /* ENABLE_IMAGES */
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#endif /* TMUX_IMAGE_H */
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