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58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
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* layer.h - Separate graphics operations by layers and replay
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef LAYER_H
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#define LAYER_H
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#include "gfx.h"
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struct layer_obj;
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struct layer_objs {
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unsigned layer;
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struct layer_obj *obj;
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struct layer_obj **next_obj;
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struct layer_objs *next;
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};
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struct layer {
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const struct gfx_ops *ops;
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void *user;
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int xmin, xmax;
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int ymin, ymax;
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struct layer_objs *objs;
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};
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void layer_line(void *ctx, int sx, int sy, int ex, int ey,
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int color, unsigned layer);
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void layer_rect(void *ctx, int sx, int sy, int ex, int ey,
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int color, int fill_color, unsigned layer);
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void layer_poly(void *ctx, int points, const int x[points], const int y[points],
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int color, int fill_color, unsigned layer);
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void layer_circ(void *ctx, int x, int y, int r,
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int color, int fill_color, unsigned layer);
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void layer_arc(void *ctx, int x, int y, int r, int sa, int ea,
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int color, int fill_color, unsigned layer);
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void layer_text(void *ctx, int x, int y, const char *s, unsigned size,
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enum text_align align, int rot, unsigned color, unsigned layer);
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void layer_init(struct layer *layer, const struct gfx_ops *ops, void *user);
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void layer_wipe(struct layer *layer);
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void layer_replay(const struct layer *layer);
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void layer_bbox(const struct layer *layer, int *x, int *y, int *w, int *h);
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void layer_destroy(struct layer *layer);
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#endif /* !LAYER_H */
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