Mercurial > molko
view libmlk-core/mlk/core/sprite.c @ 564:e91f37da2992
core: doxygenize window
author | David Demelier <markand@malikania.fr> |
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date | Wed, 08 Mar 2023 20:09:21 +0100 |
parents | 6af0524913b3 |
children | e16808365d42 |
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/* * sprite.c -- image sprites * * Copyright (c) 2020-2023 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <assert.h> #include "sprite.h" #include "texture.h" void mlk_sprite_init(struct mlk_sprite *sprite) { assert(sprite); assert(mlk_texture_ok(sprite->texture)); sprite->nrows = sprite->texture->h / sprite->cellh; sprite->ncols = sprite->texture->w / sprite->cellw; } int mlk_sprite_ok(const struct mlk_sprite *sprite) { return sprite && sprite->cellw && sprite->cellh && mlk_texture_ok(sprite->texture); } int mlk_sprite_draw(const struct mlk_sprite *sprite, unsigned int r, unsigned int c, int x, int y) { assert(mlk_sprite_ok(sprite)); return mlk_sprite_scale(sprite, r, c, x, y, sprite->cellw, sprite->cellh); } int mlk_sprite_scale(const struct mlk_sprite *sprite, unsigned int r, unsigned int c, int x, int y, unsigned int w, unsigned int h) { assert(mlk_sprite_ok(sprite)); assert(r < sprite->nrows); assert(c < sprite->ncols); return mlk_texture_scale( sprite->texture, c * sprite->cellw, /* src y */ r * sprite->cellh, /* src x */ sprite->cellw, /* src width */ sprite->cellh, /* src height */ x, /* dst x */ y, /* dst y */ w, /* dst width */ h, /* dst height */ 0.0 /* angle */ ); }