Initial commit

10 files changed, 884 insertions, 0 deletions

diff --git a/c_src/Makefile b/c_src/Makefile
new file mode 100644
index 0000000..85cb8ce
--- /dev/null
+++ b/c_src/Makefile
@@ -0,0 +1,28 @@
+# Copyright (c) 2014, 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.
+
+PRIV_DIR ?= ../priv
+
+all: env.mk
+	mkdir -p $(PRIV_DIR)
+	gcc *.c -fPIC -shared -o $(PRIV_DIR)/esdl2.so -I $(ERTS_INCLUDE_DIR) \
+		`sdl2-config --cflags` `sdl2-config --static-libs` -lSDL2_image
+
+env.mk:
+	erl -noshell -noinput -eval "file:write_file(\"env.mk\", \
+		io_lib:format(\"ERTS_INCLUDE_DIR ?= ~s/erts-~s/include/\", \
+			[code:root_dir(), erlang:system_info(version)])), \
+		init:stop()."
+
+-include env.mk
diff --git a/c_src/esdl2.c b/c_src/esdl2.c
new file mode 100644
index 0000000..460526e
--- /dev/null
+++ b/c_src/esdl2.c
@@ -0,0 +1,36 @@
+// Copyright (c) 2014, 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"
+
+NIF_ATOMS(NIF_ATOM_DECL)
+NIF_RESOURCES(NIF_RES_DECL)
+
+int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
+{
+	NIF_ATOMS(NIF_ATOM_INIT)
+	NIF_RESOURCES(NIF_RES_INIT)
+
+	return 0;
+}
+
+void unload(ErlNifEnv* env, void* priv_data)
+{
+}
+
+static ErlNifFunc nif_funcs[] = {
+	NIF_FUNCTIONS(NIF_FUNCTION_ARRAY)
+};
+
+ERL_NIF_INIT(esdl2, nif_funcs, load, NULL, NULL, unload)
diff --git a/c_src/esdl2.h b/c_src/esdl2.h
new file mode 100644
index 0000000..d3c57c4
--- /dev/null
+++ b/c_src/esdl2.h
@@ -0,0 +1,137 @@
+// Copyright (c) 2014, 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.
+
+#ifndef __ESDL2_H__
+#define __ESDL2_H__
+
+#include "SDL.h"
+
+// List of atoms used by this NIF.
+
+#define NIF_ATOMS(A) \
+	A(button) \
+	A(caps) \
+	A(close) \
+	A(data) \
+	A(enter) \
+	A(error) \
+	A(event) \
+	A(exposed) \
+	A(false) \
+	A(focus_gained) \
+	A(focus_lost) \
+	A(h) \
+	A(hidden) \
+	A(key_down) \
+	A(key_up) \
+	A(leave) \
+	A(left) \
+	A(left_alt) \
+	A(left_ctrl) \
+	A(left_gui) \
+	A(left_shift) \
+	A(ok) \
+	A(maximized) \
+	A(middle) \
+	A(minimized) \
+	A(mod) \
+	A(mode) \
+	A(mouse_down) \
+	A(mouse_motion) \
+	A(mouse_up) \
+	A(mouse_wheel) \
+	A(moved) \
+	A(num) \
+	A(quit) \
+	A(repeat) \
+	A(resized) \
+	A(restored) \
+	A(right) \
+	A(right_alt) \
+	A(right_ctrl) \
+	A(right_gui) \
+	A(right_shift) \
+	A(scancode) \
+	A(shown) \
+	A(size_changed) \
+	A(state) \
+	A(sym) \
+	A(touch) \
+	A(true) \
+	A(timestamp) \
+	A(type) \
+	A(undefined) \
+	A(w) \
+	A(which) \
+	A(window) \
+	A(window_id) \
+	A(x) \
+	A(x1) \
+	A(x2) \
+	A(xrel) \
+	A(y) \
+	A(yrel) \
+
+// List of resources used by this NIF.
+
+#define NIF_RES_TYPE(r) SDL_ ## r
+#define NIF_RESOURCES(R) \
+	R(Renderer) \
+	R(Surface) \
+	R(Texture) \
+	R(Window)
+
+// List of functions defined in this NIF.
+
+#define NIF_FUNCTION_NAME(f) esdl2_ ## f
+#define NIF_FUNCTIONS(F) \
+	/* sdl */ \
+	F(init, 1) \
+	F(init_subsystem, 1) \
+	F(quit, 0) \
+	F(quit_subsystem, 1) \
+	F(set_main_ready, 0) \
+	F(was_init, 1) \
+	/* sdl_events */ \
+	F(poll_event, 0) \
+	/* sdl_renderer */ \
+	F(create_renderer, 3) \
+	F(render_clear, 1) \
+	F(render_copy, 4) \
+	F(render_present, 1) \
+	F(set_render_draw_color, 5) \
+	/* sdl_surface */ \
+	F(img_load, 1) \
+	/* sdl_texture */ \
+	F(create_texture_from_surface, 2) \
+	/* sdl_window */ \
+	F(create_window, 6)
+
+// Generated declarations for the NIF.
+
+#include "nif_helpers.h"
+
+NIF_ATOMS(NIF_ATOM_H_DECL)
+NIF_RESOURCES(NIF_RES_H_DECL)
+NIF_FUNCTIONS(NIF_FUNCTION_H_DECL)
+
+// --
+
+#define sdl_error_tuple(env) \
+	enif_make_tuple2(env, \
+		atom_error, \
+		enif_make_string(env, SDL_GetError(), ERL_NIF_LATIN1) \
+	);
+
+#endif
diff --git a/c_src/nif_helpers.h b/c_src/nif_helpers.h
new file mode 100644
index 0000000..06eb787
--- /dev/null
+++ b/c_src/nif_helpers.h
@@ -0,0 +1,109 @@
+// Copyright (c) 2014, 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.
+
+#ifndef __NIF_HELPERS_H__
+#define __NIF_HELPERS_H__
+
+#include "erl_nif.h"
+
+#define TO_STRING(i) #i
+
+// Atoms.
+
+#define MAX_ATOM_LENGTH 255
+
+#define NIF_ATOM_DECL(a) ERL_NIF_TERM atom_ ## a;
+#define NIF_ATOM_H_DECL(a) extern ERL_NIF_TERM atom_ ## a;
+#define NIF_ATOM_INIT(a) atom_ ## a = enif_make_atom(env, #a);
+
+// Functions.
+
+#ifndef NIF_FUNCTION_NAME
+#define NIF_FUNCTION_NAME(n) n
+#endif
+
+#define NIF_FUNCTION(f) \
+	ERL_NIF_TERM NIF_FUNCTION_NAME(f)(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+#define NIF_FUNCTION_ARRAY(f, a) {#f, a, NIF_FUNCTION_NAME(f)},
+#define NIF_FUNCTION_H_DECL(f, a) \
+	ERL_NIF_TERM NIF_FUNCTION_NAME(f)(ErlNifEnv*, int, const ERL_NIF_TERM []);
+
+#define BADARG_IF(cond) if (cond) return enif_make_badarg(env)
+
+// Resources.
+
+#ifndef NIF_RES_TYPE
+#define NIF_RES_TYPE(t) t
+#endif
+
+#define NIF_RES_DECL(r) ErlNifResourceType* res_ ## r = NULL;
+#define NIF_RES_H_DECL(r) \
+	extern ErlNifResourceType* res_ ## r; \
+	void dtor_ ## r(ErlNifEnv*, void*); \
+	typedef struct { \
+		NIF_RES_TYPE(r)* v; \
+	} obj_ ## r;
+#define NIF_RES_INIT(r) \
+	res_ ## r = enif_open_resource_type(env, NULL, TO_STRING(NIF_RES_TYPE(r)), dtor_ ## r, ERL_NIF_RT_CREATE, NULL); \
+	if (!res_ ## r) return -1;
+
+#define NIF_RES_GET(r, obj) (((obj_ ## r*)obj)->v)
+#define NIF_RES_TO_TERM(r, val, term) { \
+	obj_ ## r* res = enif_alloc_resource(res_ ## r, sizeof(obj_ ## r)); \
+	res->v = val; \
+	term = enif_make_resource(env, res); \
+	enif_release_resource(res); \
+}
+
+// Function generators.
+
+#define NIF_ATOM_TO_FLAG(a, f) if (!strcmp(buf, #a)) *flags |= f; else
+#define NIF_LIST_TO_FLAGS_FUNCTION(f, type, flags_list) \
+	int f(ErlNifEnv* env, ERL_NIF_TERM list, type* flags) \
+	{ \
+		int i; \
+		char buf[MAX_ATOM_LENGTH]; \
+		ERL_NIF_TERM head; \
+		\
+		if (!enif_is_list(env, list)) \
+			return 0; \
+		\
+		while (enif_get_list_cell(env, list, &head, &list)) { \
+			if (!enif_get_atom(env, head, buf, MAX_ATOM_LENGTH, ERL_NIF_LATIN1)) \
+				return 0; \
+		\
+			flags_list(NIF_ATOM_TO_FLAG) /* else */ return 0; \
+		} \
+		\
+		return 1; \
+	}
+
+#define NIF_FLAG_CONS_LIST(a, f) if (flags & f) list = enif_make_list_cell(env, atom_ ## a, list);
+#define NIF_FLAGS_TO_LIST_FUNCTION(f, type, flags_list) \
+	ERL_NIF_TERM f(ErlNifEnv* env, type flags) \
+	{ \
+		ERL_NIF_TERM list = enif_make_list(env, 0); \
+		flags_list(NIF_FLAG_CONS_LIST); \
+		return list; \
+	}
+
+#define NIF_ENUM_TO_ATOM(a, e) if (id == e) return atom_ ## a;
+#define NIF_ENUM_TO_ATOM_FUNCTION(f, type, enum_list) \
+	ERL_NIF_TERM f(type id) \
+	{ \
+		enum_list(NIF_ENUM_TO_ATOM) \
+		return atom_undefined; \
+	}
+
+#endif
diff --git a/c_src/sdl.c b/c_src/sdl.c
new file mode 100644
index 0000000..6a429f3
--- /dev/null
+++ b/c_src/sdl.c
@@ -0,0 +1,93 @@
+// Copyright (c) 2014, 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"
+
+#define INIT_FLAGS(F) \
+	F(timer, SDL_INIT_TIMER) \
+	F(audio, SDL_INIT_AUDIO) \
+	F(video, SDL_INIT_VIDEO) \
+	F(joystick, SDL_INIT_JOYSTICK) \
+	F(haptic, SDL_INIT_HAPTIC) \
+	F(game_controller, SDL_INIT_GAMECONTROLLER) \
+	F(events, SDL_INIT_EVENTS) \
+	F(everything, SDL_INIT_EVERYTHING) \
+	F(no_parachute, SDL_INIT_NOPARACHUTE)
+
+NIF_LIST_TO_FLAGS_FUNCTION(list_to_init_flags, Uint32, INIT_FLAGS)
+
+NIF_FUNCTION(init)
+{
+	Uint32 flags = 0;
+
+	BADARG_IF(!list_to_init_flags(env, argv[0], &flags));
+
+	if (SDL_Init(flags) == 0)
+		return atom_ok;
+
+	return sdl_error_tuple(env);
+}
+
+NIF_FUNCTION(init_subsystem)
+{
+	Uint32 flags = 0;
+
+	BADARG_IF(!list_to_init_flags(env, argv[0], &flags));
+
+	if (SDL_InitSubSystem(flags) == 0)
+		return atom_ok;
+
+	return sdl_error_tuple(env);
+}
+
+NIF_FUNCTION(quit)
+{
+	SDL_Quit();
+
+	return atom_ok;
+}
+
+NIF_FUNCTION(quit_subsystem)
+{
+	Uint32 flags = 0;
+
+	BADARG_IF(!list_to_init_flags(env, argv[0], &flags));
+
+	SDL_QuitSubSystem(flags);
+
+	return atom_ok;
+}
+
+NIF_FUNCTION(set_main_ready)
+{
+	SDL_SetMainReady();
+
+	return atom_ok;
+}
+
+// @todo Implement the case where we want to receive a list of everything init.
+NIF_FUNCTION(was_init)
+{
+	unsigned int length;
+	Uint32 flags = 0;
+
+	BADARG_IF(!enif_get_list_length(env, argv[0], &length));
+	BADARG_IF(length == 0);
+	BADARG_IF(!list_to_init_flags(env, argv[0], &flags));
+
+	if (SDL_WasInit(flags))
+		return atom_true;
+
+	return atom_false;
+}
diff --git a/c_src/sdl_events.c b/c_src/sdl_events.c
new file mode 100644
index 0000000..4593a09
--- /dev/null
+++ b/c_src/sdl_events.c
@@ -0,0 +1,179 @@
+// Copyright (c) 2014, 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"
+
+#define EVENT_TYPE_ENUM(E) \
+	E(window, SDL_WINDOWEVENT) \
+	E(key_down, SDL_KEYDOWN) \
+	E(key_up, SDL_KEYUP) \
+	E(mouse_motion, SDL_MOUSEMOTION) \
+	E(mouse_down, SDL_MOUSEBUTTONDOWN) \
+	E(mouse_up, SDL_MOUSEBUTTONUP) \
+	E(mouse_wheel, SDL_MOUSEWHEEL) \
+	E(quit, SDL_QUIT)
+
+NIF_ENUM_TO_ATOM_FUNCTION(event_type_to_atom, Uint32, EVENT_TYPE_ENUM)
+
+#define WINDOW_EVENT_ENUM(E) \
+	E(shown, SDL_WINDOWEVENT_SHOWN) \
+	E(hidden, SDL_WINDOWEVENT_HIDDEN) \
+	E(exposed, SDL_WINDOWEVENT_EXPOSED) \
+	E(moved, SDL_WINDOWEVENT_MOVED) \
+	E(resized, SDL_WINDOWEVENT_RESIZED) \
+	E(size_changed, SDL_WINDOWEVENT_SIZE_CHANGED) \
+	E(minimized, SDL_WINDOWEVENT_MINIMIZED) \
+	E(maximized, SDL_WINDOWEVENT_MAXIMIZED) \
+	E(restored, SDL_WINDOWEVENT_RESTORED) \
+	E(enter, SDL_WINDOWEVENT_ENTER) \
+	E(leave, SDL_WINDOWEVENT_LEAVE) \
+	E(focus_gained, SDL_WINDOWEVENT_FOCUS_GAINED) \
+	E(focus_lost, SDL_WINDOWEVENT_FOCUS_LOST) \
+	E(close, SDL_WINDOWEVENT_CLOSE)
+
+NIF_ENUM_TO_ATOM_FUNCTION(window_event_to_atom, Uint8, WINDOW_EVENT_ENUM)
+
+#define KEYMOD_FLAGS(F) \
+	F(left_shift, KMOD_LSHIFT) \
+	F(right_shift, KMOD_RSHIFT) \
+	F(left_ctrl, KMOD_LCTRL) \
+	F(right_ctrl, KMOD_RCTRL) \
+	F(left_alt, KMOD_LALT) \
+	F(right_alt, KMOD_RALT) \
+	F(left_gui, KMOD_LGUI) \
+	F(right_gui, KMOD_RGUI) \
+	F(num, KMOD_NUM) \
+	F(caps, KMOD_CAPS) \
+	F(mode, KMOD_MODE)
+
+NIF_FLAGS_TO_LIST_FUNCTION(keymod_flags_to_list, Uint16, KEYMOD_FLAGS)
+
+#define BUTTON_ENUM(E) \
+	E(left, SDL_BUTTON_LEFT) \
+	E(middle, SDL_BUTTON_MIDDLE) \
+	E(right, SDL_BUTTON_RIGHT) \
+	E(x1, SDL_BUTTON_X1) \
+	E(x2, SDL_BUTTON_X2)
+
+NIF_ENUM_TO_ATOM_FUNCTION(button_to_atom, Uint8, BUTTON_ENUM)
+
+NIF_FUNCTION(poll_event)
+{
+	SDL_Event event;
+	ERL_NIF_TERM map;
+
+	if (SDL_PollEvent(&event) == 0)
+		return atom_false;
+
+	map = enif_make_new_map(env);
+
+	// All events have a type and a timestamp.
+	enif_make_map_put(env, map, atom_type,
+		event_type_to_atom(event.type), &map);
+	enif_make_map_put(env, map, atom_timestamp,
+		enif_make_uint(env, event.common.timestamp), &map);
+
+	// Some events have additional information.
+	if (event.type == SDL_WINDOWEVENT) {
+		enif_make_map_put(env, map, atom_window_id,
+			enif_make_uint(env, event.window.windowID), &map);
+		enif_make_map_put(env, map, atom_event,
+			window_event_to_atom(event.window.event), &map);
+		enif_make_map_put(env, map, atom_data,
+			enif_make_tuple2(env,
+				enif_make_int(env, event.window.data1),
+				enif_make_int(env, event.window.data2)),
+			&map);
+	} else if (event.type == SDL_KEYDOWN || event.type == SDL_KEYUP) {
+		enif_make_map_put(env, map, atom_window_id,
+			enif_make_uint(env, event.key.windowID), &map);
+		// We don't pass the state as this information is redundant with the type.
+		enif_make_map_put(env, map, atom_repeat,
+			event.key.repeat == 0 ? atom_false : atom_true, &map);
+		enif_make_map_put(env, map, atom_scancode,
+			enif_make_uint(env, event.key.keysym.scancode), &map);
+		enif_make_map_put(env, map, atom_sym,
+			enif_make_uint(env, event.key.keysym.sym), &map);
+		enif_make_map_put(env, map, atom_mod,
+			keymod_flags_to_list(env, event.key.keysym.mod), &map);
+	} else if (event.type == SDL_MOUSEMOTION) {
+		enif_make_map_put(env, map, atom_window_id,
+			enif_make_uint(env, event.motion.windowID), &map);
+		enif_make_map_put(env, map, atom_which,
+			(event.motion.which == SDL_TOUCH_MOUSEID)
+				? atom_touch
+				: enif_make_uint(env, event.motion.which),
+			&map);
+		// @todo We may want the state value here as it's a bitmask.
+		// Question is how do we represent it to the Erlang code?
+		enif_make_map_put(env, map, atom_x,
+			enif_make_int(env, event.motion.x), &map);
+		enif_make_map_put(env, map, atom_y,
+			enif_make_int(env, event.motion.y), &map);
+		enif_make_map_put(env, map, atom_xrel,
+			enif_make_int(env, event.motion.xrel), &map);
+		enif_make_map_put(env, map, atom_yrel,
+			enif_make_int(env, event.motion.yrel), &map);
+	} else if (event.type == SDL_MOUSEBUTTONDOWN || event.type == SDL_MOUSEBUTTONUP) {
+		enif_make_map_put(env, map, atom_window_id,
+			enif_make_uint(env, event.button.windowID), &map);
+		enif_make_map_put(env, map, atom_which,
+			(event.button.which == SDL_TOUCH_MOUSEID)
+				? atom_touch
+				: enif_make_uint(env, event.button.which),
+			&map);
+		enif_make_map_put(env, map, atom_button,
+			(event.button.button <= SDL_BUTTON_X2)
+				? button_to_atom(event.button.button)
+				: enif_make_uint(env, event.button.button),
+			&map);
+		// We don't pass the state as this information is redundant with the type.
+		// @todo SDL 2.0.2 clicks
+		enif_make_map_put(env, map, atom_x,
+			enif_make_int(env, event.button.x), &map);
+		enif_make_map_put(env, map, atom_y,
+			enif_make_int(env, event.button.y), &map);
+	} else if (event.type == SDL_MOUSEWHEEL) {
+		enif_make_map_put(env, map, atom_window_id,
+			enif_make_uint(env, event.wheel.windowID), &map);
+		enif_make_map_put(env, map, atom_which,
+			(event.wheel.which == SDL_TOUCH_MOUSEID)
+				? atom_touch
+				: enif_make_uint(env, event.wheel.which),
+			&map);
+		enif_make_map_put(env, map, atom_x,
+			enif_make_int(env, event.wheel.x), &map);
+		enif_make_map_put(env, map, atom_y,
+			enif_make_int(env, event.wheel.y), &map);
+	}
+
+	// @todo SDL_TextEditingEvent
+	// @todo SDL_TextInputEvent
+	// @todo SDL_JoyAxisEvent	
+	// @todo SDL_JoyBallEvent	
+	// @todo SDL_JoyHatEvent	
+	// @todo SDL_JoyButtonEvent	
+	// @todo SDL_JoyDeviceEvent	
+	// @todo SDL_ControllerAxisEvent	
+	// @todo SDL_ControllerButtonEvent	
+	// @todo SDL_ControllerDeviceEvent	
+	// @todo SDL_UserEvent	
+	// @todo SDL_SysWMEvent	
+	// @todo SDL_TouchFingerEvent	
+	// @todo SDL_MultiGestureEvent	
+	// @todo SDL_DollarGestureEvent	
+	// @todo SDL_DropEvent	
+
+	return map;
+}
diff --git a/c_src/sdl_renderer.c b/c_src/sdl_renderer.c
new file mode 100644
index 0000000..ae65436
--- /dev/null
+++ b/c_src/sdl_renderer.c
@@ -0,0 +1,154 @@
+// Copyright (c) 2014, 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"
+
+void dtor_Renderer(ErlNifEnv* env, void* obj)
+{
+	SDL_DestroyRenderer(NIF_RES_GET(Renderer, obj));
+}
+
+#define RENDERER_FLAGS(F) \
+	F(software, SDL_RENDERER_SOFTWARE) \
+	F(accelerated, SDL_RENDERER_ACCELERATED) \
+	F(present_vsync, SDL_RENDERER_PRESENTVSYNC) \
+	F(target_texture, SDL_RENDERER_TARGETTEXTURE)
+
+NIF_LIST_TO_FLAGS_FUNCTION(list_to_renderer_flags, Uint32, RENDERER_FLAGS)
+
+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;
+}
+
+NIF_FUNCTION(create_renderer)
+{
+	void* window_res;
+	int index;
+	Uint32 flags = 0;
+	SDL_Renderer* renderer;
+	ERL_NIF_TERM term;
+
+	BADARG_IF(!enif_get_resource(env, argv[0], res_Window, &window_res));
+	BADARG_IF(!enif_get_int(env, argv[1], &index));
+	BADARG_IF(!list_to_renderer_flags(env, argv[2], &flags));
+
+	renderer = SDL_CreateRenderer(NIF_RES_GET(Window, window_res), index, flags);
+	if (!renderer)
+		return sdl_error_tuple(env);
+
+	NIF_RES_TO_TERM(Renderer, renderer, term);
+
+	return enif_make_tuple2(env,
+		atom_ok,
+		term
+	);
+}
+
+NIF_FUNCTION(render_clear)
+{
+	void* renderer_res;
+
+	BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
+
+	if (SDL_RenderClear(NIF_RES_GET(Renderer, renderer_res)))
+		return sdl_error_tuple(env);
+
+	return atom_ok;
+}
+
+NIF_FUNCTION(render_copy)
+{
+	void* renderer_res;
+	void* texture_res;
+	SDL_Rect src, *srcPtr, dst, *dstPtr;
+
+	BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
+	BADARG_IF(!enif_get_resource(env, argv[1], res_Texture, &texture_res));
+
+	if (enif_is_identical(argv[2], atom_undefined))
+		srcPtr = NULL;
+	else {
+		BADARG_IF(!enif_is_map(env, argv[2]));
+
+		srcPtr = &src;
+		if (!map_to_rect(env, argv[2], srcPtr))
+			return enif_make_badarg(env);
+	}
+
+	if (enif_is_identical(argv[3], atom_undefined))
+		dstPtr = NULL;
+	else {
+		BADARG_IF(!enif_is_map(env, argv[3]));
+
+		dstPtr = &dst;
+		if (!map_to_rect(env, argv[3], dstPtr))
+			return enif_make_badarg(env);
+	}
+
+	if (SDL_RenderCopy(NIF_RES_GET(Renderer, renderer_res), NIF_RES_GET(Texture, texture_res), srcPtr, dstPtr))
+		return sdl_error_tuple(env);
+
+	return atom_ok;
+}
+
+NIF_FUNCTION(render_present)
+{
+	void* renderer_res;
+
+	BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
+
+	SDL_RenderPresent(NIF_RES_GET(Renderer, renderer_res));
+
+	return atom_ok;
+}
+
+NIF_FUNCTION(set_render_draw_color)
+{
+	void* renderer_res;
+	int r, g, b, a;
+
+	BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
+	BADARG_IF(!enif_get_int(env, argv[1], &r));
+	BADARG_IF(!enif_get_int(env, argv[2], &g));
+	BADARG_IF(!enif_get_int(env, argv[3], &b));
+	BADARG_IF(!enif_get_int(env, argv[4], &a));
+	BADARG_IF(r < 0 || r > 255 || g < 0 || g > 255
+		|| b < 0 || b > 255 || a < 0 || a > 255);
+
+	if (SDL_SetRenderDrawColor(NIF_RES_GET(Renderer, renderer_res), r, g, b ,a))
+		return sdl_error_tuple(env);
+
+	return atom_ok;
+}
diff --git a/c_src/sdl_surface.c b/c_src/sdl_surface.c
new file mode 100644
index 0000000..6f43f3e
--- /dev/null
+++ b/c_src/sdl_surface.c
@@ -0,0 +1,41 @@
+// Copyright (c) 2014, 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"
+#include "SDL_image.h"
+
+void dtor_Surface(ErlNifEnv* env, void* obj)
+{
+	SDL_FreeSurface(NIF_RES_GET(Surface, obj));
+}
+
+NIF_FUNCTION(img_load)
+{
+	char filename[FILENAME_MAX];
+	SDL_Surface* surface;
+	ERL_NIF_TERM term;
+
+	BADARG_IF(!enif_get_string(env, argv[0], filename, FILENAME_MAX, ERL_NIF_LATIN1));
+
+	surface = IMG_Load(filename);
+	if (!surface)
+		return sdl_error_tuple(env);
+
+	NIF_RES_TO_TERM(Surface, surface, term);
+
+	return enif_make_tuple2(env,
+		atom_ok,
+		term
+	);
+}
diff --git a/c_src/sdl_texture.c b/c_src/sdl_texture.c
new file mode 100644
index 0000000..daf5b93
--- /dev/null
+++ b/c_src/sdl_texture.c
@@ -0,0 +1,42 @@
+// Copyright (c) 2014, 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"
+
+void dtor_Texture(ErlNifEnv* env, void* obj)
+{
+	SDL_DestroyTexture(NIF_RES_GET(Texture, obj));
+}
+
+NIF_FUNCTION(create_texture_from_surface)
+{
+	void* renderer_res;
+	void* surface_res;
+	SDL_Texture* texture;
+	ERL_NIF_TERM term;
+
+	BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
+	BADARG_IF(!enif_get_resource(env, argv[1], res_Surface, &surface_res));
+
+	texture = SDL_CreateTextureFromSurface(NIF_RES_GET(Renderer, renderer_res), NIF_RES_GET(Surface, surface_res));
+	if (!texture)
+		return sdl_error_tuple(env);
+
+	NIF_RES_TO_TERM(Texture, texture, term);
+
+	return enif_make_tuple2(env,
+		atom_ok,
+		term
+	);
+}
diff --git a/c_src/sdl_window.c b/c_src/sdl_window.c
new file mode 100644
index 0000000..0a130f3
--- /dev/null
+++ b/c_src/sdl_window.c
@@ -0,0 +1,65 @@
+// Copyright (c) 2014, 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"
+
+void dtor_Window(ErlNifEnv* env, void* obj)
+{
+	SDL_DestroyWindow(NIF_RES_GET(Window, obj));
+}
+
+#define WINDOW_FLAGS(F) \
+	F(fullscreen, SDL_WINDOW_FULLSCREEN) \
+	F(fullscreen_desktop, SDL_WINDOW_FULLSCREEN_DESKTOP) \
+	F(opengl, SDL_WINDOW_OPENGL) \
+	F(shown, SDL_WINDOW_SHOWN) \
+	F(hidden, SDL_WINDOW_HIDDEN) \
+	F(borderless, SDL_WINDOW_BORDERLESS) \
+	F(resizable, SDL_WINDOW_RESIZABLE) \
+	F(minimized, SDL_WINDOW_MINIMIZED) \
+	F(maximized, SDL_WINDOW_MAXIMIZED) \
+	F(input_grabbed, SDL_WINDOW_INPUT_GRABBED) \
+	F(input_focus, SDL_WINDOW_INPUT_FOCUS) \
+	F(mouse_focus, SDL_WINDOW_MOUSE_FOCUS) \
+	F(foreign, SDL_WINDOW_FOREIGN) \
+	F(allow_high_dpi, SDL_WINDOW_ALLOW_HIGHDPI)
+
+NIF_LIST_TO_FLAGS_FUNCTION(list_to_window_flags, Uint32, WINDOW_FLAGS)
+
+NIF_FUNCTION(create_window)
+{
+	char title[255];
+	int x, y, w, h;
+	Uint32 flags = 0;
+	SDL_Window* window;
+	ERL_NIF_TERM term;
+
+	BADARG_IF(!enif_get_string(env, argv[0], title, 255, ERL_NIF_LATIN1));
+	BADARG_IF(!enif_get_int(env, argv[1], &x));
+	BADARG_IF(!enif_get_int(env, argv[2], &y));
+	BADARG_IF(!enif_get_int(env, argv[3], &w));
+	BADARG_IF(!enif_get_int(env, argv[4], &h));
+	BADARG_IF(!list_to_window_flags(env, argv[5], &flags));
+
+	window = SDL_CreateWindow(title, x, y, w, h, flags);
+	if (!window)
+		return sdl_error_tuple(env);
+
+	NIF_RES_TO_TERM(Window, window, term);
+
+	return enif_make_tuple2(env,
+		atom_ok,
+		term
+	);
+}