apps,fceux: add config.h for configuration of frameskip and sound

Makefile.compile

@@ -12,6 +12,7 @@ INCLUDES += $(addprefix -I, $(INC_DIR)) -I$(AM_HOME)/am/
 INCLUDES += -I$(AM_HOME)/am/include
 CFLAGS   += -O2 -MMD -Wall -Werror -ggdb $(INCLUDES) \
             -D__ISA__=\"$(ISA)\" -D__ISA_$(shell echo $(ISA) | tr a-z A-Z)__ \
+            -D__PLATFORM__=\"$(PLATFORM)\" -D__PLATFORM_$(shell echo $(PLATFORM) | tr a-z A-Z)__ \
             -D__ARCH__=$(ARCH) -D__ARCH_$(shell echo $(ARCH) | tr a-z A-Z | tr - _) \
             -DARCH_H=\"arch/$(ARCH).h\" \
             -fno-asynchronous-unwind-tables -fno-builtin -fno-stack-protector \

apps/fceux/src/config.h

@@ -0,0 +1,19 @@
+#ifndef __CONFIG_H__
+#define __CONFIG_H__
+
+#define SOUND_NONE 0
+#define SOUND_LQ   1
+#define SOUND_HQ   2
+
+#if defined(__PLATFORM_NEMU__)
+# define NR_FRAMESKIP 1
+# define SOUND_CONFIG SOUND_LQ
+#elif defined(__PLATFORM_NOOP__)
+# define NR_FRAMESKIP 2
+# define SOUND_CONFIG SOUND_NONE
+#else
+# define NR_FRAMESKIP 0
+# define SOUND_CONFIG SOUND_HQ
+#endif
+
+#endif

apps/fceux/src/drivers/sdl/sdl-sound.cpp

@@ -23,6 +23,7 @@
 
 #include "sdl.h"
 #include <amdev.h>
+#include "../../config.h"
 
 // unit: 16-bit
 static unsigned int s_BufferSize;
@@ -33,7 +34,17 @@ static unsigned int s_BufferSize;
   int
 InitSound()
 {
+#if SOUND_CONFIG == SOUND_NONE
+  return 1;
+#endif
+
+#if SOUND_CONFIG == SOUND_HQ
   const int soundrate = 44100;
+  const int soundq = 1;
+#else
+  const int soundrate = 11025;
+  const int soundq = 0;
+#endif
   const int soundbufsize = 128;
   const int soundvolume = 150;
   const int soundtrianglevolume = 256;
@@ -41,10 +52,9 @@ InitSound()
   const int soundsquare2volume = 256;
   const int soundnoisevolume = 256;
   const int soundpcmvolume = 256;
-  const int soundq = 1;
 
   _DEV_AUDIO_INIT_t init;
-  init.freq = 44100;
+  init.freq = soundrate;
   init.channels = 1;
   init.samples = 512;
   init.bufsize = soundbufsize * soundrate / 1000;

apps/fceux/src/drivers/sdl/sdl.cpp

@@ -11,12 +11,7 @@
 #include "sdl-video.h"
 
 #include "../../types.h"
-
-#ifdef __ISA_NATIVE__
-#define NR_FRAMESKIP 0
-#else
-#define NR_FRAMESKIP 2
-#endif
+#include "../../config.h"
 
 int isloaded;
 

apps/fceux/src/sound.cpp

@@ -25,6 +25,7 @@
 #include "sound.h"
 #include "filter.h"
 #include "state.h"
+#include "config.h"
 //#include "wave.h"
 //#include "debug.h"
 
@@ -516,6 +517,10 @@ static INLINE void DMCDMA(void)
 
 void FCEU_SoundCPUHook(int cycles)
 {
+#if SOUND_CONFIG != SOUND_HQ
+  return;
+#endif
+
   fhcnt-=cycles*48;
   if(fhcnt<=0)
   {
@@ -1007,6 +1012,10 @@ void SetNESSoundMap(void)
 static int32 inbuf=0;
 int FlushEmulateSound(void)
 {
+#if SOUND_CONFIG == SOUND_NONE
+  return 0;
+#endif
+
   int x;
   int32 end,left;