Pausing support.

config.def.h

@@ -196,6 +196,7 @@ static const struct snes_keybind snes_keybinds_1[] = {
    { SSNES_AUDIO_INPUT_RATE_MINUS,     SDLK_KP_MINUS, NO_BTN,    AXIS_NONE },
    { SSNES_REWIND,                     SDLK_r,      NO_BTN,      AXIS_NONE },
    { SSNES_MOVIE_RECORD_TOGGLE,        SDLK_o,      NO_BTN,      AXIS_NONE },
+   { SSNES_PAUSE_TOGGLE,               SDLK_p,      NO_BTN,      AXIS_NONE },
    { -1 }
 };
 

driver.h

@@ -38,6 +38,7 @@ enum
    SSNES_AUDIO_INPUT_RATE_MINUS,
    SSNES_REWIND,
    SSNES_MOVIE_RECORD_TOGGLE,
+   SSNES_PAUSE_TOGGLE,
 };
 
 struct snes_keybind

general.h

@@ -37,7 +37,7 @@
 
 
 #define MAX_PLAYERS 5
-#define MAX_BINDS 24 // Needs to be increased every time there are new binds added.
+#define MAX_BINDS 25 // Needs to be increased every time there are new binds added.
 #define SSNES_NO_JOYPAD 0xFFFF
 struct settings
 {
@@ -161,6 +161,8 @@ struct global
    bool bsv_movie_end;
    bool bsv_movie_playback;
 
+   bool is_paused;
+
 #ifdef HAVE_FFMPEG
    ffemu_t *rec;
    char record_path[256];

ssnes.c

@@ -22,6 +22,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <getopt.h>
+#include <time.h>
 #include "driver.h"
 #include "file.h"
 #include "hqflt/filters.h"
@@ -35,6 +36,12 @@
 #include <samplerate.h>
 #endif
 
+#ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#endif
+
+
 #ifdef __APPLE__
 #include "SDL.h" 
 // OSX seems to really need -lSDLmain, 
@@ -932,8 +939,37 @@ static void check_movie_record(void)
    old_button = new_button;
 }
 
+static void check_pause(void)
+{
+   static bool old_state = false;
+   bool new_state = driver.input->key_pressed(driver.input_data, SSNES_PAUSE_TOGGLE);
+   if (new_state && !old_state)
+   {
+      g_extern.is_paused = !g_extern.is_paused;
+
+      if (g_extern.is_paused)
+      {
+         SSNES_LOG("Paused!\n");
+         if (driver.audio_data)
+            driver.audio->stop(driver.audio_data);
+      }
+      else 
+      {
+         SSNES_LOG("Unpaused!\n");
+         if (driver.audio_data)
+            driver.audio->start(driver.audio_data);
+      }
+   }
+
+   old_state = new_state;
+}
+
 static void do_state_checks(void)
 {
+   check_pause();
+   if (g_extern.is_paused)
+      return;
+
    set_fast_forward_button(driver.input->key_pressed(driver.input_data, SSNES_FAST_FORWARD_KEY));
 
    if (!g_extern.bsv_movie)
@@ -1001,7 +1037,21 @@ int main(int argc, char *argv[])
       do_state_checks();
       
       // Run libsnes for one frame.
+      if (!g_extern.is_paused)
          psnes_run();
+      else
+      {
+         input_poll();
+#ifdef _WIN32
+         Sleep(10);
+#else
+         struct timespec tv = {
+            .tv_sec = 0,
+            .tv_nsec = 10000000
+         };
+         nanosleep(&tv, NULL);
+#endif
+      }
    }
 
 #ifdef HAVE_FFMPEG

ssnes.cfg

@@ -208,3 +208,7 @@
 
 # Toggle between recording and not.
 # input_movie_record_toggle = o
+
+# Toggle between paused and non-paused state
+# input_pause_toggle = p
+

tools/ssnes-joyconfig.c

@@ -90,6 +90,7 @@ static struct bind binds[] = {
    MISC_BIND("Audio input rate step down", rate_step_down)
    MISC_BIND("Rewind", rewind)
    MISC_BIND("Movie recording toggle", movie_record_toggle)
+   MISC_BIND("Pause", pause_toggle)
 };
 
 void get_binds(config_file_t *conf, int player, int joypad)