diff options
Diffstat (limited to 'c_src/sdl_rect.c')
-rw-r--r-- | c_src/sdl_rect.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/c_src/sdl_rect.c b/c_src/sdl_rect.c new file mode 100644 index 0000000..eb04d5b --- /dev/null +++ b/c_src/sdl_rect.c @@ -0,0 +1,57 @@ +// Copyright (c) 2014-2018, Loïc Hoguin <[email protected]> +// +// 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 "esdl2.h" + +int map_to_point(ErlNifEnv* env, ERL_NIF_TERM map, SDL_Point* point) +{ + ERL_NIF_TERM x, y; + + if (!enif_get_map_value(env, map, atom_x, &x)) + return 0; + if (!enif_get_map_value(env, map, atom_y, &y)) + return 0; + + if (!enif_get_int(env, x, &point->x)) + return 0; + if (!enif_get_int(env, y, &point->y)) + return 0; + + return 1; +} + +int map_to_rect(ErlNifEnv* env, ERL_NIF_TERM map, SDL_Rect* rect) +{ + ERL_NIF_TERM x, y, w, h; + + if (!enif_get_map_value(env, map, atom_x, &x)) + return 0; + if (!enif_get_map_value(env, map, atom_y, &y)) + return 0; + if (!enif_get_map_value(env, map, atom_w, &w)) + return 0; + if (!enif_get_map_value(env, map, atom_h, &h)) + return 0; + + if (!enif_get_int(env, x, &rect->x)) + return 0; + if (!enif_get_int(env, y, &rect->y)) + return 0; + if (!enif_get_int(env, w, &rect->w)) + return 0; + if (!enif_get_int(env, h, &rect->h)) + return 0; + + return 1; +} |