diff options
Diffstat (limited to 'c_src')
| -rw-r--r-- | c_src/esdl2.h | 1 | ||||
| -rw-r--r-- | c_src/sdl_renderer.c | 42 |
2 files changed, 43 insertions, 0 deletions
diff --git a/c_src/esdl2.h b/c_src/esdl2.h index 8899602..74e6115 100644 --- a/c_src/esdl2.h +++ b/c_src/esdl2.h @@ -174,6 +174,7 @@ F(render_copy, 4) \ F(render_copy_ex, 7) \ F(render_draw_line, 5) \ + F(render_draw_lines, 2) \ F(render_present, 1) \ F(render_set_logical_size, 3) \ F(set_render_draw_color, 5) \ diff --git a/c_src/sdl_renderer.c b/c_src/sdl_renderer.c index 2d6c319..7229d21 100644 --- a/c_src/sdl_renderer.c +++ b/c_src/sdl_renderer.c @@ -387,6 +387,48 @@ NIF_FUNCTION(render_draw_line) NIF_RES_GET(Renderer, renderer_res), x1, y1, x2, y2); } +// render_draw_lines + +NIF_CALL_HANDLER(thread_render_draw_lines) +{ + int ret; + + ret = SDL_RenderDrawLines(args[0], args[1], (long)args[2]); + + enif_free(args[1]); + + if (ret) + return sdl_error_tuple(env); + + return atom_ok; +} + +NIF_FUNCTION(render_draw_lines) +{ + void* renderer_res; + unsigned int len; + SDL_Point* points; + ERL_NIF_TERM list, head; + int i = 0; + + BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res)); + BADARG_IF(!enif_get_list_length(env, argv[1], &len)); + BADARG_IF(len < 2); + + points = (SDL_Point*)enif_alloc(len * sizeof(SDL_Point)); + + list = argv[1]; + while (enif_get_list_cell(env, list, &head, &list)) { + if (!map_to_point(env, head, &(points[i++]))) { + enif_free(points); + return enif_make_badarg(env); + } + } + + return nif_thread_call(env, thread_render_draw_lines, 3, + NIF_RES_GET(Renderer, renderer_res), points, len); +} + // render_present NIF_CAST_HANDLER(thread_render_present) |