Add Windows native implementaton of MAKO

The MIDI synthesizer bundled with SDL_Mixer doesn't sound as good as
Windows' built-in software synthesizer.

This adds Windows native implementation of MAKO as win/mako.cpp. It
plays MIDI by writing out SMF to a temporary file and play it with MCI.
CD emulation (--playlist) is also implemented using MCI.
The PCM implementation is copyed from TOTO's original Win32 impl.

This removes SDL_mixer dependency in Windows.

Fixes #1.

src/sys/mako.cpp

@@ -16,12 +16,18 @@
 #define MIX_INIT_MID MIX_INIT_FLUIDSYNTH
 #endif
 
+namespace {
+
+std::vector<uint8> smf;
+Mix_Music *mix_music;
+Mix_Chunk *mix_chunk;
+
+} // namespace
+
 MAKO::MAKO(NACT* parent, const char* playlist) :
 	current_music(0),
 	next_loop(0),
-	nact(parent),
-	mix_music(NULL),
-	mix_chunk(NULL)
+	nact(parent)
 {
 	int mix_init_flags = MIX_INIT_MID;
 

src/sys/mako.h

@@ -14,10 +14,6 @@
 #include "../common.h"
 #include "nact.h"
 
-#if !defined(__EMSCRIPTEN__) && !defined(__ANDROID__)
-#include <SDL_mixer.h>
-#endif
-
 class MAKO
 {
 public:
@@ -33,6 +29,10 @@ public:
 	void stop_pcm();
 	bool check_pcm();
 
+#ifdef _WIN32
+	void on_mci_notify(SDL_SysWMmsg* msg);
+#endif
+
 	// AMUS.DAT, AMSE.DAT
 	char amus[16];
 	char amse[16];
@@ -48,9 +48,6 @@ private:
 	bool load_playlist(const char* path);
 
 	std::vector<const char*> playlist;
-	std::vector<uint8> smf;
-	Mix_Music *mix_music;
-	Mix_Chunk *mix_chunk;
 #endif
 };
 

src/sys/nact_input.cpp

@@ -4,13 +4,19 @@
 	[ NACT - input ]
 */
 
+#ifdef _WIN32
+#include <windows.h>
+#undef ERROR
+#endif
+#include <SDL_syswm.h>
 #include "nact.h"
 #include "ags.h"
+#include "mako.h"
 #include "texthook.h"
 
 static int mousex, mousey, fingers;
 
-static bool pump_events(AGS* ags)
+static bool pump_events(AGS* ags, MAKO* mako)
 {
 	SDL_Event e;
 	while (SDL_PollEvent(&e)) {
@@ -34,6 +40,13 @@ static bool pump_events(AGS* ags)
 		case SDL_APP_DIDENTERFOREGROUND:
 			ags->flush_screen(false);
 			break;
+
+#ifdef _WIN32
+		case SDL_SYSWMEVENT:
+			if (e.syswm.msg->msg.win.msg == MM_MCINOTIFY)
+				mako->on_mci_notify(e.syswm.msg);
+			break;
+#endif
 		}
 	}
 	return false;
@@ -45,7 +58,7 @@ uint8 NACT::get_key()
 
 	texthook_keywait();
 
-	if (pump_events(ags))
+	if (pump_events(ags, mako))
 		terminate = true;
 
 	// キーボード＆マウス
@@ -90,7 +103,7 @@ uint8 NACT::get_key()
 
 void NACT::get_cursor(int* x, int* y)
 {
-	if (pump_events(ags))
+	if (pump_events(ags, mako))
 		terminate = true;
 	*x = mousex;
 	*y = mousey;