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92187d2e4e
This ensures the user cannot raise the maximum sixel size, where width*height cannot be represented as an integer. Note, we should consider moving all sixel width/height variables from int to size_t. But, since it doesn't make any sense with overly large sixel images, clamping the max width/height is enough. Add a static_assert() that checks SIXEL_MAX_WIDTH * SIXEL_MAX_HEIGHT doesn't overflow. Closes #2343
54 lines
2 KiB
C
54 lines
2 KiB
C
#pragma once
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#include "terminal.h"
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#define SIXEL_MAX_COLORS 1024u
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#define SIXEL_MAX_WIDTH 10000u
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#define SIXEL_MAX_HEIGHT 10000u
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static_assert(SIXEL_MAX_WIDTH * SIXEL_MAX_HEIGHT ==
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(size_t)SIXEL_MAX_WIDTH * SIXEL_MAX_HEIGHT,
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"sixel max size triggers integer overflow");
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typedef void (*sixel_put)(struct terminal *term, uint8_t c);
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void sixel_fini(struct terminal *term);
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sixel_put sixel_init(struct terminal *term, int p1, int p2, int p3);
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void sixel_unhook(struct terminal *term);
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void sixel_destroy(struct sixel *sixel);
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void sixel_destroy_all(struct terminal *term);
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void sixel_scroll_up(struct terminal *term, int rows);
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void sixel_scroll_down(struct terminal *term, int rows);
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void sixel_cell_size_changed(struct terminal *term);
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void sixel_sync_cache(const struct terminal *term, struct sixel *sixel);
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void sixel_reflow_grid(struct terminal *term, struct grid *grid);
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/* Shortcut for sixel_reflow_grid(normal) + sixel_reflow_grid(alt) */
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void sixel_reflow(struct terminal *term);
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/*
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* Remove sixel data from the specified location. Used when printing
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* or erasing characters, and when emitting new sixel images, to
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* remove sixel data that would otherwise be rendered on-top.
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*
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* Row numbers are relative to the current grid offset
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*/
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void sixel_overwrite_by_rectangle(
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struct terminal *term, int row, int col, int height, int width);
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void sixel_overwrite_by_row(struct terminal *term, int row, int col, int width);
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void sixel_overwrite_at_cursor(struct terminal *term, int width);
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void sixel_colors_report_current(struct terminal *term);
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void sixel_colors_reset(struct terminal *term);
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void sixel_colors_set(struct terminal *term, unsigned count);
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void sixel_colors_report_max(struct terminal *term);
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void sixel_geometry_report_current(struct terminal *term);
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void sixel_geometry_reset(struct terminal *term);
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void sixel_geometry_set(struct terminal *term, unsigned width, unsigned height);
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void sixel_geometry_report_max(struct terminal *term);
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