WIP: Emscripten support

CMakeLists.txt

@@ -1,4 +1,5 @@
 cmake_minimum_required(VERSION 2.8.11)
+set(CMAKE_CXX_STANDARD 14)
 Project(mkxp)
 
 ## Setup options ##
@@ -14,7 +15,7 @@ set(EXTERNAL_LIB_PATH "" CACHE PATH "External precompiled lib prefix")
 include(cmake/PrepUtils.cmake)
 
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
-
+set(CMAKE_EXECUTABLE_SUFFIX ".html")
 IF("${CMAKE_SYSTEM}" MATCHES "Linux")
 	SET(LINUX ON)
 ENDIF()
@@ -53,6 +54,16 @@ elseif(APPLE)
 	set(LIB_PATH "lib")
 endif()
 
+set(EMTERPRETER_OPT "-O0 -s ASSERTIONS=0 -s TOTAL_MEMORY=67108864 -s ABORTING_MALLOC=0 -s EMTERPRETIFY=1 -s EMTERPRETIFY_ASYNC=1 -s NO_EXIT_RUNTIME=1 --embed-file \"game\"")
+set(EMTERPRETER_OPT "${EMTERPRETER_OPT} -s EMTERPRETIFY_WHITELIST=\"['__ZN8Graphics10transitionEiPKci','__ZL18graphicsTransitioniPmm','_call_cfunc','_rb_call0','_rb_call','_rb_eval','_rb_eval_string','_eval_node','_eval','_rb_f_eval','_rb_funcall2','_rb_protect','_rb_yield_0','_loop_i','_rb_rescue2','_rb_f_loop','__ZL10evalHelperP7evalArg','__ZL10evalStringmmPi','__ZL14runRMXPScriptsR13BacktraceData','__Z13rgssThreadFunPv','_main','__ZL11inputUpdateiPmm','__ZN11EventThread7processER14RGSSThreadData','__ZL17mriBindingExecutev','__ZL14mriBindingInitv','_module_setup']\"")
+
+message(STATUS ${EMTERPRETER_OPT})
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EMTERPRETER_OPT}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${EMTERPRETER_OPT}")
+
+message(STATUS ${CMAKE_C_FLAGS})
+
 set(CMAKE_SKIP_BUILD_RPATH TRUE)
 set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
 set(CMAKE_INSTALL_RPATH ${BIN_RPATH})
@@ -92,9 +103,10 @@ pkg_check_modules(SDL2_TTF      REQUIRED SDL2_ttf)
 pkg_check_modules(SDL2_IMAGE    REQUIRED SDL2_image)
 pkg_check_modules(SDL_SOUND     REQUIRED SDL_sound)
 
-find_package(Boost 1.49 COMPONENTS program_options REQUIRED)
+#find_package(Boost 1.49 COMPONENTS program_options REQUIRED)
 find_package(OpenAL REQUIRED)
-find_package(ZLIB REQUIRED)
+pkg_check_modules(ZLIB REQUIRED zlib)
+#find_package(ZLIB REQUIRED)
 
 ## Setup main source ##
 
@@ -388,7 +400,7 @@ link_directories(
 	${PIXMAN_LIBRARY_DIRS}
 	${PHYSFS_LIBRARY_DIRS}
 	${SDL2_LIBRARY_DIRS} # Blindly assume other SDL bits are in same directory
-	${Boost_LIBRARY_DIR}
+#	${Boost_LIBRARY_DIR}
 	${MRI_LIBDIR}
 )
 
@@ -409,11 +421,13 @@ target_include_directories(${PROJECT_NAME} PRIVATE
 	${PIXMAN_INCLUDE_DIRS}
 	${PHYSFS_INCLUDE_DIRS}
 	${SDL2_INCLUDE_DIRS} # Blindly assume other SDL bits are in same directory
-	${Boost_INCLUDE_DIR}
+#	${Boost_INCLUDE_DIR}
 	${MRI_INCLUDE_DIRS}
 	${VORBISFILE_INCLUDE_DIRS}
 	${FLUID_INCLUDE_DIRS}
 	${OPENAL_INCLUDE_DIR}
+	${SDL_SOUND_INCLUDE_DIRS}
+	${FREETYPE_INCLUDE_DIRS}
 )
 
 target_link_libraries(${PROJECT_NAME}
@@ -424,14 +438,21 @@ target_link_libraries(${PROJECT_NAME}
 	${SDL_SOUND_LIBRARIES}
 	${PHYSFS_LIBRARIES}
 	${PIXMAN_LIBRARIES}
-	${Boost_LIBRARIES}
+#	${Boost_LIBRARIES}
 	${MRI_LIBRARIES}
 	${VORBISFILE_LIBRARIES}
 	${FLUID_LIBRARIES}
 	${OPENAL_LIBRARY}
 	${ZLIB_LIBRARY}
-
 	${PLATFORM_LIBRARIES}
+	"libruby-static.a"
+	"libfreetype.a"
+	"libz.a"
+	"libpng.a"
+	"libogg.a"
+	"libvorbis.a"
+	"libvorbisfile.a"
+	"libjpeg.a"
 )
 
 PostBuildMacBundle(${PROJECT_NAME} "" "${PLATFORM_COPY_LIBS}")

binding-mri/binding-mri.cpp

@@ -155,7 +155,9 @@ static void mriBindingInit()
 static void
 showMsg(const std::string &msg)
 {
-	shState->eThread().showMessageBox(msg.c_str());
+	printf("Show msg %s\n", msg.c_str()); 
+        return;
+//	shState->eThread().showMessageBox(msg.c_str());
 }
 
 static void printP(int argc, VALUE *argv,
@@ -341,6 +343,9 @@ static VALUE evalHelper(evalArg *arg)
 	return rb_funcall2(Qnil, rb_intern("eval"), ARRAY_SIZE(argv), argv);
 }
 
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#endif
 static VALUE evalString(VALUE string, VALUE filename, int *state)
 {
 	evalArg arg = { string, filename };
@@ -473,6 +478,10 @@ static void runRMXPScripts(BacktraceData &btData)
 
 	while (true)
 	{
+#ifdef __EMSCRIPTEN
+		emscripten_sleep(10);
+#endif	
+
 		for (long i = 0; i < scriptCount; ++i)
 		{
 			VALUE script = rb_ary_entry(scriptArray, i);
@@ -499,6 +508,9 @@ static void runRMXPScripts(BacktraceData &btData)
 				break;
 		}
 
+		printf("tick\n");
+		shState->eThread().process(shState->rtData());
+
 		VALUE exc = rb_gv_get("$!");
 		if (rb_obj_class(exc) != getRbData()->exc[Reset])
 			break;

binding-mri/input-binding.cpp

@@ -24,12 +24,14 @@
 #include "exception.h"
 #include "binding-util.h"
 #include "util.h"
+#include "eventthread.h"
 
 RB_METHOD(inputUpdate)
 {
 	RB_UNUSED_PARAM;
 
 	shState->input().update();
+shState->eThread().process(shState->rtData());
 
 	return Qnil;
 }

src/boost-hash.h

@@ -21,10 +21,9 @@
 
 #ifndef BOOSTHASH_H
 #define BOOSTHASH_H
-
+#include <string>
-#include <boost/unordered/unordered_map.hpp>
+#include <map>
-#include <boost/unordered/unordered_set.hpp>
+#include <set>
-
 #include <utility>
 
 /* Wrappers around the boost unordered template classes,
@@ -34,7 +33,7 @@ template<typename K, typename V>
 class BoostHash
 {
 private:
-	typedef boost::unordered_map<K, V> BoostType;
+	typedef std::map<K, V> BoostType;
 	typedef std::pair<K, V> PairType;
 	BoostType p;
 
@@ -98,7 +97,7 @@ template<typename K>
 class BoostSet
 {
 private:
-	typedef boost::unordered_set<K> BoostType;
+	typedef std::set<K> BoostType;
 	BoostType p;
 
 public:

src/config.cpp

@@ -21,9 +21,9 @@
 
 #include "config.h"
 
-#include <boost/program_options/options_description.hpp>
+//#include <boost/program_options/options_description.hpp>
-#include <boost/program_options/parsers.hpp>
+//#include <boost/program_options/parsers.hpp>
-#include <boost/program_options/variables_map.hpp>
+//#include <boost/program_options/variables_map.hpp>
 
 #include <SDL_filesystem.h>
 
@@ -140,8 +140,8 @@ std::set<T> setFromVec(const std::vector<T> &vec)
 	return std::set<T>(vec.begin(), vec.end());
 }
 
-typedef std::vector<std::string> StringVec;
+//typedef std::vector<std::string> StringVec;
-namespace po = boost::program_options;
+//namespace po = boost::program_options;
 
 #define CONF_FILE "mkxp.conf"
 
@@ -150,6 +150,8 @@ Config::Config()
 
 void Config::read(int argc, char *argv[])
 {
+	gameFolder = "game";
+#if 0
 #define PO_DESC_ALL \
 	PO_DESC(rgssVersion, int, 0) \
 	PO_DESC(debugMode, bool, false) \
@@ -244,6 +246,8 @@ void Config::read(int argc, char *argv[])
 
 #undef PO_DESC
 #undef PO_DESC_ALL
+#endif
+	preloadScripts.insert("win32_wrap.rb");
 
 	rgssVersion = clamp(rgssVersion, 0, 3);
 
@@ -276,6 +280,7 @@ static void setupScreenSize(Config &conf)
 
 void Config::readGameINI()
 {
+
 	if (!customScript.empty())
 	{
 		game.title = baseName(customScript);
@@ -287,7 +292,7 @@ void Config::readGameINI()
 
 		return;
 	}
-
+#if 0
 	po::options_description podesc;
 	podesc.add_options()
 	        ("Game.Title", po::value<std::string>())
@@ -295,9 +300,11 @@ void Config::readGameINI()
 	        ;
 
 	po::variables_map vm;
+#endif
+
 	std::string iniFilename = execName + ".ini";
 	SDLRWStream iniFile(iniFilename.c_str(), "r");
-
+#if 0
 	if (iniFile)
 	{
 		try
@@ -317,9 +324,11 @@ void Config::readGameINI()
 
 	GUARD_ALL( game.title = vm["Game.Title"].as<std::string>(); );
 	GUARD_ALL( game.scripts = vm["Game.Scripts"].as<std::string>(); );
+#endif
+	game.scripts = "Data/Scripts.rxdata";
+
 
 	strReplace(game.scripts, '\\', '/');
-
 #ifdef INI_ENCODING
 	/* Can add more later */
 	const char *languages[] =

src/config.h

@@ -28,56 +28,56 @@
 
 struct Config
 {
-	int rgssVersion;
+	int rgssVersion = 0;
 
-	bool debugMode;
+	bool debugMode = false;
-	bool printFPS;
+	bool printFPS = false;
 
-	bool winResizable;
+	bool winResizable = false;
-	bool fullscreen;
+	bool fullscreen = false;
-	bool fixedAspectRatio;
+	bool fixedAspectRatio = true;
-	bool smoothScaling;
+	bool smoothScaling = true;
-	bool vsync;
+	bool vsync = false;
 
-	int defScreenW;
+	int defScreenW = 0;
-	int defScreenH;
+	int defScreenH = 0;
 
-	int fixedFramerate;
+	int fixedFramerate = 0;
-	bool frameSkip;
+	bool frameSkip =true;
-	bool syncToRefreshrate;
+	bool syncToRefreshrate = false;
 
-	bool solidFonts;
+	bool solidFonts = false;
 
-	bool subImageFix;
+	bool subImageFix = false;
-	bool enableBlitting;
+	bool enableBlitting = true;
-	int maxTextureSize;
+	int maxTextureSize = 0;
 
-	std::string gameFolder;
+	std::string gameFolder = ".";
-	bool anyAltToggleFS;
+	bool anyAltToggleFS = false;
-	bool enableReset;
+	bool enableReset = true;
-	bool allowSymlinks;
+	bool allowSymlinks = false;
-	bool pathCache;
+	bool pathCache=true;
 
 	std::string dataPathOrg;
 	std::string dataPathApp;
 
 	std::string iconPath;
-	std::string execName;
+	std::string execName = "Game";
 	std::string titleLanguage;
 
 	struct
 	{
 		std::string soundFont;
-		bool chorus;
+		bool chorus = false;
-		bool reverb;
+		bool reverb = false;
 	} midi;
 
 	struct
 	{
-		int sourceCount;
+		int sourceCount = 6;
 	} SE;
 
-	bool useScriptNames;
+	bool useScriptNames = false;
 
 	std::string customScript;
 	std::set<std::string> preloadScripts;

src/eventthread.cpp

@@ -100,7 +100,9 @@ bool EventThread::allocUserEvents()
 
 	return true;
 }
-
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#endif
 EventThread::EventThread()
     : fullscreen(false),
       showCursor(false)
@@ -109,63 +111,42 @@ EventThread::EventThread()
 void EventThread::process(RGSSThreadData &rtData)
 {
 		SDL_Event event;
+	UnidirMessage<Vec2i> windowSizeMsg;
+
+	static bool once = true;
+	if (once) {
+	SDL_Event event;
 	SDL_Window *win = rtData.window;
 	UnidirMessage<Vec2i> &windowSizeMsg = rtData.windowSizeMsg;
 
 	initALCFunctions(rtData.alcDev);
 
-	// XXX this function breaks input focus on OSX
-#ifndef __MACOSX__
-	SDL_SetEventFilter(eventFilter, &rtData);
-#endif
 
 	fullscreen = rtData.config.fullscreen;
-	int toggleFSMod = rtData.config.anyAltToggleFS ? KMOD_ALT : KMOD_LALT;
+	toggleFSMod = rtData.config.anyAltToggleFS ? KMOD_ALT : KMOD_LALT;
 
 	fps.lastFrame = SDL_GetPerformanceCounter();
 	fps.displayCounter = 0;
 	fps.acc = 0;
 	fps.accDiv = 0;
 
-	if (rtData.config.printFPS)
-		fps.sendUpdates.set();
-
-	bool displayingFPS = false;
-
-	bool cursorInWindow = false;
-	/* Will be updated eventually */
-	SDL_Rect gameScreen = { 0, 0, 0, 0 };
-
-	/* SDL doesn't send an initial FOCUS_GAINED event */
-	bool windowFocused = true;
-
-	bool terminate = false;
-
-	SDL_Joystick *js = 0;
 	if (SDL_NumJoysticks() > 0)
 		js = SDL_JoystickOpen(0);
 
-	char buffer[128];
-
-	char pendingTitle[128];
-	bool havePendingTitle = false;
-
-	bool resetting = false;
-
-	int winW, winH;
-	int i;
-
 	SDL_GetWindowSize(win, &winW, &winH);
 
-	SettingsMenu *sMenu = 0;
+	once = false;
-
-	while (true)
-	{
-		if (!SDL_WaitEvent(&event))
-		{
-			Debug() << "EventThread: Event error";
-			break;
 	}
+	while (SDL_PollEvent(&event))
+	{
+#ifdef __EMSCRIPTEN__
+		emscripten_sleep(10);
+#endif
+//		if (!SDL_WaitEvent(&event))
+//		{
+//			Debug() << "EventThread: Event error";
+//			break;
+//		}
 
 		if (sMenu && sMenu->onEvent(event))
 		{
@@ -460,12 +441,12 @@ void EventThread::process(RGSSThreadData &rtData)
 	}
 
 	/* Just in case */
-	rtData.syncPoint.resumeThreads();
+	//rtData.syncPoint.resumeThreads();
 
-	if (SDL_JoystickGetAttached(js))
+	//if (SDL_JoystickGetAttached(js))
-		SDL_JoystickClose(js);
+	//	SDL_JoystickClose(js);
 
-	delete sMenu;
+	//delete sMenu;
 }
 
 int EventThread::eventFilter(void *data, SDL_Event *event)

src/eventthread.h

@@ -35,7 +35,7 @@
 #include <string>
 
 #include <stdint.h>
-
+class SettingsMenu;
 struct RGSSThreadData;
 typedef struct ALCdevice_struct ALCdevice;
 struct SDL_Window;
@@ -123,6 +123,35 @@ private:
 		double acc;
 		uint32_t accDiv;
 	} fps;
+
+	SDL_Window *win;
+	int toggleFSMod;
+
+	bool displayingFPS = false;
+
+	bool cursorInWindow = false;
+	/* Will be updated eventually */
+	SDL_Rect gameScreen = { 0, 0, 0, 0 };
+
+	/* SDL doesn't send an initial FOCUS_GAINED event */
+	bool windowFocused = true;
+
+	bool terminate = false;
+
+	SDL_Joystick *js = 0;
+
+	char buffer[128];
+
+	char pendingTitle[128];
+	bool havePendingTitle = false;
+
+	bool resetting = false;
+
+	int winW, winH;
+	int i;
+
+	SettingsMenu *sMenu = 0;
+
 };
 
 /* Used to asynchronously inform the RGSS thread

src/filesystem.cpp

@@ -18,7 +18,7 @@
 ** You should have received a copy of the GNU General Public License
 ** along with mkxp.  If not, see <http://www.gnu.org/licenses/>.
 */
-
+#include <cassert>
 #include "filesystem.h"
 
 #include "rgssad.h"

src/fluid-fun.cpp

@@ -17,7 +17,7 @@
 #elif __WINDOWS__
 #define FLUID_LIB "fluidsynth.dll"
 #else
-#error "platform not recognized"
+//#error "platform not recognized"
 #endif
 
 struct FluidFunctions fluid;
@@ -26,6 +26,7 @@ static void *so;
 
 void initFluidFunctions()
 {
+#if 0
 #ifdef SHARED_FLUID
 
 #define FLUID_FUN(name, type) \
@@ -64,4 +65,7 @@ fail:
 	SDL_UnloadObject(so);
 	so = 0;
 #endif
+#endif
+	so = 0;
+	return;
 }

src/graphics.cpp

@@ -318,7 +318,9 @@ private:
 
 /* Nanoseconds per second */
 #define NS_PER_S 1000000000
-
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#endif
 struct FPSLimiter
 {
 	uint64_t lastTickCount;
@@ -420,6 +422,7 @@ struct FPSLimiter
 private:
 	void delayTicks(uint64_t ticks)
 	{
+#ifndef __EMSCRIPTEN__
 #if defined(HAVE_NANOSLEEP)
 		struct timespec req;
 		uint64_t nsec = ticks / tickFreqNS;
@@ -441,6 +444,10 @@ private:
 		}
 #else
 		SDL_Delay(ticks / tickFreqMS);
+#endif
+#endif
+#ifdef __EMSCRIPTEN
+		emscripten_sleep(ticks /tickFreqMS);
 #endif
 	}
 };

src/main.cpp

@@ -232,7 +232,7 @@ int main(int argc, char *argv[])
 		}
 
 	conf.readGameINI();
-
+	printf("%s\n", conf.gameFolder.c_str());
 	assert(conf.rgssVersion >= 1 && conf.rgssVersion <= 3);
 	printRgssVersion(conf.rgssVersion);
 
@@ -322,8 +322,9 @@ int main(int argc, char *argv[])
 	rtData.bindingUpdateMsg.post(loadBindings(conf));
 
 	/* Start RGSS thread */
-	SDL_Thread *rgssThread =
+	//SDL_Thread *rgssThread =
-	        SDL_CreateThread(rgssThreadFun, "rgss", &rtData);
+	//        SDL_CreateThread(rgssThreadFun, "rgss", &rtData);
+	::rgssThreadFun(&rtData);
 
 	/* Start event processing */
 	eventThread.process(rtData);
@@ -347,8 +348,8 @@ int main(int argc, char *argv[])
 
 	/* If RGSS thread ack'd request, wait for it to shutdown,
 	 * otherwise abandon hope and just end the process as is. */
-	if (rtData.rqTermAck)
+	if (rtData.rqTermAck){}
-		SDL_WaitThread(rgssThread, 0);
+		//SDL_WaitThread(rgssThread, 0);
 	else
 		SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, conf.game.title.c_str(),
 		                         "The RGSS script seems to be stuck and mkxp will now force quit", win);