1 files changed, 158 insertions, 0 deletions
diff --git a/c_src/sdl_ttf.c b/c_src/sdl_ttf.c
new file mode 100644
index 0000000..7deb729
--- /dev/null
+++ b/c_src/sdl_ttf.c
@@ -0,0 +1,158 @@
+// Copyright (c) 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"
+
+// @todo These operations should probably occur in the thread.
+void dtor_Font(ErlNifEnv* env, void* obj)
+{
+	TTF_Font* font = NIF_RES_GET(Font, obj);
+
+	TTF_CloseFont(font);
+}
+
+// ttf_init
+
+NIF_CALL_HANDLER(thread_ttf_init)
+{
+	if (TTF_Init())
+		return sdl_error_tuple(env);
+
+	return atom_ok;
+}
+
+NIF_FUNCTION(ttf_init)
+{
+	return nif_thread_call(env, thread_ttf_init, 0);
+}
+
+// ttf_openfont
+
+NIF_CALL_HANDLER(thread_ttf_open_font)
+{
+	TTF_Font* font;
+	obj_Font* res;
+	ERL_NIF_TERM term;
+
+	font = TTF_OpenFont(args[0], (long)args[1]);
+
+	enif_free(args[0]);
+
+	if (!font)
+		return sdl_error_tuple(env);
+
+	NIF_RES_TO_PTR_AND_TERM(Font, font, res, term);
+
+	return enif_make_tuple2(env,
+		atom_ok,
+		term
+	);
+}
+
+NIF_FUNCTION(ttf_open_font)
+{
+	ErlNifBinary bin;
+	char* filename;
+	int ptsize;
+
+	BADARG_IF(!enif_get_int(env, argv[1], &ptsize));
+
+	// Getting the filename last to simplify the code due to memory allocation.
+
+	BADARG_IF(!enif_inspect_binary(env, argv[0], &bin));
+
+	filename = enif_alloc(bin.size + 1);
+	memcpy(filename, bin.data, bin.size);
+	filename[bin.size] = '\0';
+
+	return nif_thread_call(env, thread_ttf_open_font, 2,
+		filename, ptsize);
+}
+
+// ttf_quit
+
+NIF_CAST_HANDLER(thread_ttf_quit)
+{
+	TTF_Quit();
+}
+
+NIF_FUNCTION(ttf_quit)
+{
+	return nif_thread_cast(env, thread_ttf_quit, 0);
+}
+
+// ttf_render_utf8_solid
+
+NIF_CALL_HANDLER(thread_ttf_render_utf8_solid)
+{
+	SDL_Surface* surface;
+	obj_Surface* res;
+	ERL_NIF_TERM term;
+
+	surface = TTF_RenderUTF8_Solid(args[0], args[1], *(SDL_Color*)args[2]);
+
+	enif_free(args[1]);
+	enif_free(args[2]);
+
+	if (!surface)
+		return sdl_error_tuple(env);
+
+	NIF_RES_TO_PTR_AND_TERM(Surface, surface, res, term);
+
+	return enif_make_tuple2(env,
+		atom_ok,
+		term
+	);
+}
+
+NIF_FUNCTION(ttf_render_utf8_solid)
+{
+	void* font_res;
+	ErlNifBinary bin;
+	char* text;
+	SDL_Color* color;
+
+	BADARG_IF(!enif_get_resource(env, argv[0], res_Font, &font_res));
+	BADARG_IF(!enif_inspect_binary(env, argv[1], &bin));
+
+	text = enif_alloc(bin.size + 1);
+	memcpy(text, bin.data, bin.size);
+	text[bin.size] = '\0';
+
+	color = enif_alloc(sizeof(SDL_Color));
+	if (!map_to_color(env, argv[2], color)) {
+		enif_free(text);
+		enif_free(color);
+
+		return enif_make_badarg(env);
+	}
+
+	return nif_thread_call(env, thread_ttf_render_utf8_solid, 3,
+		NIF_RES_GET(Font, font_res), text, color);
+}
+
+// ttf_was_init
+
+NIF_CALL_HANDLER(thread_ttf_was_init)
+{
+	if (TTF_WasInit())
+		return atom_true;
+
+	return atom_false;
+}
+
+NIF_FUNCTION(ttf_was_init)
+{
+	return nif_thread_call(env, thread_ttf_was_init, 0);
+}