Merge branch 'master' of github.com:Themaister/SSNES

This reverts commit de8bc62474.

Makefile

@@ -2,7 +2,7 @@ include config.mk
 
 TARGET = ssnes tools/ssnes-joyconfig
 
-OBJ = ssnes.o file.o driver.o settings.o dynamic.o message.o rewind.o movie.o autosave.o gfx/gfx_common.o ups.o bps.o strl.o screenshot.o thread.o
+OBJ = ssnes.o file.o driver.o settings.o dynamic.o message.o rewind.o movie.o autosave.o gfx/gfx_common.o ups.o bps.o strl.o screenshot.o thread.o audio/hermite.o
 JOYCONFIG_OBJ = tools/ssnes-joyconfig.o conf/config_file.o strl.o
 HEADERS = $(wildcard */*.h) $(wildcard *.h)
 
@@ -27,13 +27,6 @@ ifneq ($(findstring Linux,$(OS)),)
    LIBS += -lrt
 endif
 
-ifeq ($(HAVE_SRC), 1)
-   LIBS += $(SRC_LIBS)
-   DEFINES += $(SRC_CFLAGS)
-else
-   OBJ += audio/hermite.o
-endif
-
 ifeq ($(HAVE_CONFIGFILE), 1)
    OBJ += conf/config_file.o
 endif

Makefile.win

@@ -166,10 +166,10 @@ clean:
 	rm -f tools/*.o
 
 dist_x86: all
-	zip -r ssnes-win32-0.9-rc2.zip $(TARGET) $(JTARGET) ssnes.cfg snes.dll SDL.dll
+	zip -r ssnes-win32-0.9.zip $(TARGET) $(JTARGET) ssnes.cfg snes.dll SDL.dll
 
 dist_x86_64: all
-	zip -r ssnes-win64-0.9-rc2.zip $(TARGET) $(JTARGET) ssnes.cfg snes.dll SDL.dll
+	zip -r ssnes-win64-0.9.zip $(TARGET) $(JTARGET) ssnes.cfg snes.dll SDL.dll
 
 libs_x86:
 	wget https://github.com/downloads/Themaister/SSNES/SSNES-win32-libs.zip --no-check-certificate

audio/alsa.c

@@ -21,7 +21,7 @@
 #include <asoundlib.h>
 #include "general.h"
 
-#define TRY_ALSA(x) if ( x < 0 ) { \
+#define TRY_ALSA(x) if (x < 0) { \
                   goto error; \
                }
 
@@ -52,14 +52,14 @@ static bool find_float_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
 static void* __alsa_init(const char* device, unsigned rate, unsigned latency)
 {
    alsa_t *alsa = calloc(1, sizeof(alsa_t));
-   if ( alsa == NULL )
+   if (!alsa)
       return NULL;
 
    snd_pcm_hw_params_t *params = NULL;
    snd_pcm_sw_params_t *sw_params = NULL;
 
    const char *alsa_dev = "default";
-   if ( device != NULL )
+   if (device)
       alsa_dev = device;
 
    TRY_ALSA(snd_pcm_open(&alsa->pcm, alsa_dev, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK));
@@ -117,7 +117,7 @@ error:
    return NULL;
 }
 
-static ssize_t __alsa_write(void* data, const void* buf, size_t size)
+static ssize_t __alsa_write(void *data, const void *buf, size_t size)
 {
    alsa_t *alsa = data;
 
@@ -141,16 +141,16 @@ static ssize_t __alsa_write(void* data, const void* buf, size_t size)
 
       frames = snd_pcm_writei(alsa->pcm, (const char*)buf + written * 2 * (alsa->has_float ? sizeof(float) : sizeof(int16_t)), size - written);
 
-      if ( frames == -EPIPE || frames == -EINTR || frames == -ESTRPIPE )
+      if (frames == -EPIPE || frames == -EINTR || frames == -ESTRPIPE)
       {
-         if ( snd_pcm_recover(alsa->pcm, frames, 1) < 0 )
+         if (snd_pcm_recover(alsa->pcm, frames, 1) < 0)
             return -1;
 
          return 0;
       }
-      else if ( frames == -EAGAIN && alsa->nonblock )
+      else if (frames == -EAGAIN && alsa->nonblock)
          return 0;
-      else if ( frames < 0 )
+      else if (frames < 0)
          return -1;
 
       written += frames;
@@ -178,9 +178,9 @@ static bool __alsa_start(void *data)
 static void __alsa_free(void *data)
 {
    alsa_t *alsa = data;
-   if ( alsa )
+   if (alsa)
    {
-      if ( alsa->pcm )
+      if (alsa->pcm)
       {
          snd_pcm_drop(alsa->pcm);
          snd_pcm_close(alsa->pcm);
@@ -200,8 +200,3 @@ const audio_driver_t audio_alsa = {
    .ident = "alsa"
 };
 
-   
-
-
-   
-   

audio/hermite.c

@@ -20,13 +20,12 @@
 #include "hermite.h"
 #include <stdlib.h>
 
-#define MAX_CHANS 8
+#define CHANNELS 2
 
 struct hermite_resampler
 {
-   float chan_data[MAX_CHANS][4];
+   float chan_data[CHANNELS][4];
    double r_frac;
-   unsigned chans;
 };
 
 static inline float hermite_kernel(float mu1, float a, float b, float c, float d)
@@ -47,21 +46,17 @@ static inline float hermite_kernel(float mu1, float a, float b, float c, float d
    return (a0 * b) + (a1 * m0) + (a2 * m1) + (a3 * c);
 }
 
-hermite_resampler_t *hermite_new(unsigned channels)
+hermite_resampler_t *hermite_new(void)
 {
-   if (channels > MAX_CHANS)
-      return NULL;
-
    hermite_resampler_t *re = calloc(1, sizeof(*re));
    if (!re)
       return NULL;
-   re->chans = channels;
    return re;
 }
 
 void hermite_process(hermite_resampler_t *re, struct hermite_data *data)
 {
-   double r_step = 1.0 / data->src_ratio;
+   double r_step = 1.0 / data->ratio;
    size_t processed_out = 0;
    size_t processed_in = 0;
 
@@ -75,7 +70,7 @@ void hermite_process(hermite_resampler_t *re, struct hermite_data *data)
       while (re->r_frac <= 1.0 && processed_out < out_frames)
       {
          re->r_frac += r_step;
-         for (unsigned i = 0; i < re->chans; i++)
+         for (unsigned i = 0; i < CHANNELS; i++)
          {
             float res = hermite_kernel(re->r_frac, 
                   re->chan_data[i][0], re->chan_data[i][1], re->chan_data[i][2], re->chan_data[i][3]);
@@ -88,7 +83,7 @@ void hermite_process(hermite_resampler_t *re, struct hermite_data *data)
       {
          re->r_frac -= 1.0;
 
-         for (unsigned i = 0; i < re->chans; i++)
+         for (unsigned i = 0; i < CHANNELS; i++)
          {
             re->chan_data[i][0] = re->chan_data[i][1];
             re->chan_data[i][1] = re->chan_data[i][2];

audio/hermite.h

@@ -26,7 +26,7 @@
 
 typedef struct hermite_resampler hermite_resampler_t;
 
-hermite_resampler_t *hermite_new(unsigned channels);
+hermite_resampler_t *hermite_new(void);
 
 struct hermite_data
 {
@@ -39,8 +39,7 @@ struct hermite_data
    size_t input_frames_used;
    size_t output_frames_gen;
 
-   bool end_of_input; // Just used to clone the SRC API.
-   double src_ratio;
+   double ratio;
 };
 
 void hermite_process(hermite_resampler_t *re, struct hermite_data *data);

audio/openal.c

@@ -60,7 +60,7 @@ static void* __al_init(const char* device, unsigned rate, unsigned latency)
 {
    (void)device;
    al_t *al = calloc(1, sizeof(al_t));
-   if ( al == NULL )
+   if (!al)
       return NULL;
 
    al->handle = alcOpenDevice(NULL);
@@ -133,7 +133,7 @@ static bool al_get_buffer(al_t *al, ALuint *buffer)
       };
 #endif
 
-      for(;;)
+      for (;;)
       {
          if (al_unqueue_buffers(al))
             break;
@@ -221,7 +221,7 @@ static void __al_free(void *data)
    {
       alSourceStop(al->source);
       alDeleteSources(1, &al->source);
-      if ( al->buffers )
+      if (al->buffers)
       {
          alDeleteBuffers(al->num_buffers, al->buffers);
          free(al->buffers);
@@ -244,4 +244,3 @@ const audio_driver_t audio_openal = {
    .ident = "openal"
 };
 
-   

audio/rsound.c

@@ -57,12 +57,12 @@ static void err_cb(void *userdata)
 static void* __rsd_init(const char* device, unsigned rate, unsigned latency)
 {
    rsd_t *rsd = calloc(1, sizeof(rsd_t));
-   if ( rsd == NULL )
+   if (!rsd)
       return NULL;
 
    rsound_t *rd;
 
-   if ( rsd_init(&rd) < 0 )
+   if (rsd_init(&rd) < 0)
    {
       free(rsd);
       return NULL;
@@ -80,14 +80,14 @@ static void* __rsd_init(const char* device, unsigned rate, unsigned latency)
    rsd_set_param(rd, RSD_SAMPLERATE, &rate);
    rsd_set_param(rd, RSD_LATENCY, &latency);
 
-   if ( device != NULL )
+   if (device)
       rsd_set_param(rd, RSD_HOST, (void*)device);
 
    rsd_set_param(rd, RSD_FORMAT, &format);
 
    rsd_set_callback(rd, audio_cb, err_cb, 256, rsd);
 
-   if ( rsd_start(rd) < 0 )
+   if (rsd_start(rd) < 0)
    {
       free(rsd);
       rsd_free(rd);
@@ -161,7 +161,7 @@ static void __rsd_set_nonblock_state(void *data, bool state)
 static bool __rsd_start(void *data)
 {
    rsd_t *rsd = data;
-   if ( rsd_start(rsd->rd) < 0)
+   if (rsd_start(rsd->rd) < 0)
       return false;
 
    return true;

audio/utils.h

@@ -0,0 +1,83 @@
+#ifndef AUDIO_UTILS_H
+#define AUDIO_UTILS_H
+
+#include <stdint.h>
+
+#ifdef __SSE2__
+#include <emmintrin.h>
+#define audio_convert_s16_to_float audio_convert_s16_to_float_SSE2
+#define audio_convert_float_to_s16 audio_convert_float_to_s16_SSE2
+#else
+#define audio_convert_s16_to_float audio_convert_s16_to_float_C
+#define audio_convert_float_to_s16 audio_convert_float_to_s16_C
+#endif
+
+static inline void audio_convert_s16_to_float_C(float *out,
+      const int16_t *in, unsigned samples)
+{
+   for (unsigned i = 0; i < samples; i++)
+      out[i] = (float)in[i] / 0x8000; 
+}
+
+static inline void audio_convert_float_to_s16_C(int16_t *out,
+      const float *in, unsigned samples)
+{
+   for (unsigned i = 0; i < samples; i++)
+   {
+      int32_t val = in[i] * 0x8000;
+      out[i] = (val > 0x7FFF) ? 0x7FFF : (val < -0x8000 ? -0x8000 : (int16_t)val);
+   }
+}
+
+#ifdef __SSE2__
+static inline void audio_convert_s16_to_float_SSE2(float *out,
+      const int16_t *in, unsigned samples)
+{
+   // Not aligned? FML :(
+   if (((uintptr_t)in & 7) || ((uintptr_t)out & 15))
+   {
+      audio_convert_s16_to_float_C(out, in, samples);
+      return;
+   }
+
+   __m128 factor = _mm_set1_ps(1.0f / 0x7fff);
+   unsigned i;
+   for (i = 0; i + 4 <= samples; i += 4, in += 4, out += 4)
+   {
+      __m64 input = *(const __m64*)in;
+      __m128 reg = _mm_cvtpi16_ps(input);
+      __m128 res = _mm_mul_ps(reg, factor);
+      *(__m128*)out = res;
+   }
+
+   audio_convert_s16_to_float_C(out, in, samples - i);
+}
+
+static inline void audio_convert_float_to_s16_SSE2(int16_t *out,
+      const float *in, unsigned samples)
+{
+   // Not aligned? FML :(
+   if (((uintptr_t)in & 7) || ((uintptr_t)out & 15))
+   {
+      audio_convert_float_to_s16_C(out, in, samples);
+      return;
+   }
+
+   __m128 factor = _mm_set1_ps(0x7fff);
+   unsigned i;
+   for (i = 0; i + 4 <= samples; i += 4, in += 4, out += 4)
+   {
+      __m128 input = *(const __m128*)in;
+      __m128 res = _mm_mul_ps(input, factor);
+      __m64 output = _mm_cvtps_pi16(res);
+      *(__m64*)out = output;
+   }
+
+   audio_convert_float_to_s16_C(out, in, samples - i);
+}
+
+
+#endif
+
+#endif
+

conf/config_file.c

@@ -24,18 +24,49 @@
 #include <errno.h>
 #include "strl.h"
 
+#ifndef _WIN32
+#include <sys/param.h> // MAXPATHLEN
+#else
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#endif
+
+#ifndef MAXPATHLEN
+#ifdef PATH_MAX
+#define MAXPATHLEN PATH_MAX
+#else
+#define MAXPATHLEN 512
+#endif
+#endif
+
+#define MAX_INCLUDE_DEPTH 16
+
 struct entry_list
 {
+   bool readonly; // If we got this from an #include, do not allow write.
    char *key;
    char *value;
    struct entry_list *next;
 };
 
+struct include_list
+{
+   char *path;
+   struct include_list *next;
+};
+
 struct config_file
 {
+   char *path;
    struct entry_list *entries;
+   struct entry_list *tail;
+   unsigned include_depth;
+
+   struct include_list *includes;
 };
 
+static config_file_t *config_file_new_internal(const char *path, unsigned depth);
+
 static char *getaline(FILE *file)
 {
    char *newline = malloc(9);
@@ -58,13 +89,189 @@ static char *getaline(FILE *file)
    return newline; 
 }
 
-static bool parse_line(struct entry_list *list, char *line)
+static char* extract_value(char *line, bool is_value)
+{
+   if (is_value)
+   {
+      while (isspace(*line))
+         line++;
+
+      // If we don't have an equal sign here, we've got an invalid string...
+      if (*line != '=')
+         return false;
+
+      line++;
+   }
+
+   while (isspace(*line))
+      line++;
+
+   // We have a full string. Read until next ".
+   if (*line == '"')
+   {
+      line++;
+      char *tok = strtok(line, "\"");
+      if (!tok)
+         return false;
+      return strdup(tok);
+   }
+   else if (*line == '\0') // Nothing :(
+      return NULL;
+   else // We don't have that... Read till next space.
+   {
+      char *tok = strtok(line, " \n\t\f\r\v");
+      if (tok)
+         return strdup(tok);
+      else
+         return NULL;
+   }
+}
+
+static void set_list_readonly(struct entry_list *list)
+{
+   while (list)
+   {
+      list->readonly = true;
+      list = list->next;
+   }
+}
+
+// Move semantics? :)
+static void add_child_list(config_file_t *parent, config_file_t *child)
+{
+   if (parent->entries)
+   {
+      struct entry_list *head = parent->entries;
+      while (head->next)
+         head = head->next;
+
+      set_list_readonly(child->entries);
+      head->next = child->entries;
+   }
+   else
+   {
+      set_list_readonly(child->entries);
+      parent->entries = child->entries;
+   }
+
+   child->entries = NULL;
+
+   // Rebase tail.
+   if (parent->entries)
+   {
+      struct entry_list *head = parent->entries;
+      while (head->next)
+         head = head->next;
+      parent->tail = head;
+   }
+   else
+      parent->tail = NULL;
+}
+
+static void add_include_list(config_file_t *conf, const char *path)
+{
+   struct include_list *head = conf->includes;
+   struct include_list *node = calloc(1, sizeof(*node));
+   node->path = strdup(path);
+
+   if (head)
+   {
+      while (head->next)
+         head = head->next;
+
+      head->next = node;
+   }
+   else
+      conf->includes = node;
+}
+
+static void add_sub_conf(config_file_t *conf, char *line)
+{
+   char *path = extract_value(line, false);
+   if (!path)
+      return;
+
+   add_include_list(conf, path);
+
+   char real_path[MAXPATHLEN];
+
+#ifndef _WIN32
+   if (*path == '/')
+   {
+      strlcpy(real_path, path, sizeof(real_path));
+   }
+   else if (*path == '~')
+   {
+      const char *home = getenv("HOME");
+      strlcpy(real_path, home ? home : "/", sizeof(real_path));
+      strlcat(real_path, path + 1, sizeof(real_path));
+   }
+   else
+   {
+      strlcpy(real_path, conf->path, sizeof(real_path));
+      char *split = strrchr(real_path, '/');
+      if (split)
+      {
+         split[1] = '\0';
+         strlcat(real_path, path, sizeof(real_path));
+      }
+      else
+         strlcpy(real_path, path, sizeof(real_path));
+   }
+#else
+   // Accomodate POSIX systems on Win32.
+   bool is_full_path = *path == '/';
+
+   if (is_full_path)
+      strlcpy(real_path, path, sizeof(real_path));
+   else
+      GetFullPathNameA(path, sizeof(real_path), real_path, NULL);
+
+   if (strcmp(path, real_path) != 0)
+   {
+      strlcpy(real_path, conf->path, sizeof(real_path));
+      char *split = strrchr(real_path, '/');
+      if (!split)
+         split = strrchr(real_path, '\\');
+
+      split[1] = '\0';
+      strlcat(real_path, path, sizeof(real_path));
+   }
+#endif
+
+   config_file_t *sub_conf = config_file_new_internal(real_path, conf->include_depth + 1);
+   if (!sub_conf)
+   {
+      free(path);
+      return;
+   }
+
+   // Pilfer internal list! :D
+   add_child_list(conf, sub_conf);
+   config_file_free(sub_conf);
+   free(path);
+}
+
+static bool parse_line(config_file_t *conf, struct entry_list *list, char *line)
 {
    // Remove everything after comment.
    char *comment = strchr(line, '#');
    if (comment)
       *comment = '\0';
 
+   // Starting line with # and include includes config files. :)
+   if ((comment == line) && (conf->include_depth < MAX_INCLUDE_DEPTH))
+   {
+      comment++;
+      if (strstr(comment, "include ") == comment)
+      {
+         add_sub_conf(conf, comment + strlen("include "));
+         return false;
+      }
+   }
+   else if (conf->include_depth >= MAX_INCLUDE_DEPTH)
+      fprintf(stderr, "!!! #include depth exceeded for config! Might be a cycle.\n");
+
    // Skips to first character.
    while (isspace(*line))
       line++;
@@ -86,66 +293,42 @@ static bool parse_line(struct entry_list *list, char *line)
    key[index] = '\0';
    list->key = key;
 
-   while (isspace(*line))
-      line++;
-
-   // If we don't have an equal sign here, we've got an invalid string...
-   if (*line != '=')
+   list->value = extract_value(line, true);
+   if (!list->value)
    {
       list->key = NULL;
       free(key);
       return false;
    }
-   line++;
-
-   while (isspace(*line))
-      line++;
-
-   // We have a full string. Read until next ".
-   if (*line == '"')
-   {
-      char *tok = strtok(line + 1, "\"");
-      if (tok == NULL)
-      {
-         list->key = NULL;
-         free(key);
-         return false;
-      }
-      list->value = strdup(tok);
-   }
-   else // We don't have that... Read till next space.
-   {
-      char *tok = strtok(line, " \t\f");
-      if (tok == NULL)
-      {
-         list->key = NULL;
-         free(key);
-         return false;
-      }
-      list->value = strdup(tok);
-   }
 
    return true;
 }
 
-config_file_t *config_file_new(const char *path)
+static config_file_t *config_file_new_internal(const char *path, unsigned depth)
 {
-
    struct config_file *conf = calloc(1, sizeof(*conf));
-   if (conf == NULL)
+   if (!conf)
       return NULL;
 
-   if (path == NULL)
+   if (!path)
       return conf;
 
-   FILE *file = fopen(path, "r");
-   if (!file)
+   conf->path = strdup(path);
+   if (!conf->path)
    {
       free(conf);
       return NULL;
    }
 
-   struct entry_list *tail = conf->entries;
+   conf->include_depth = depth;
+
+   FILE *file = fopen(path, "r");
+   if (!file)
+   {
+      free(conf->path);
+      free(conf);
+      return NULL;
+   }
 
    while (!feof(file))
    {
@@ -154,50 +337,69 @@ config_file_t *config_file_new(const char *path)
 
       if (line)
       {
-         if (parse_line(list, line))
+         if (parse_line(conf, list, line))
          {
-            if (conf->entries == NULL)
+            if (conf->entries)
             {
-               conf->entries = list;
-               tail = list;
+               conf->tail->next = list;
+               conf->tail = list;
             }
             else
             {
-               tail->next = list;
-               tail = list;
+               conf->entries = list;
+               conf->tail = list;
             }
          }
+
          free(line);
       }
+
+      if (list != conf->tail)
+         free(list);
    }
    fclose(file);
 
    return conf;
 }
 
+config_file_t *config_file_new(const char *path)
+{
+   return config_file_new_internal(path, 0);
+}
+
 void config_file_free(config_file_t *conf)
 {
-   if (conf != NULL)
+   if (!conf)
+      return;
+
+   struct entry_list *tmp = conf->entries;
+   while (tmp)
    {
-      struct entry_list *tmp = conf->entries;
-      struct entry_list *old = tmp;
-      while (tmp != NULL)
-      {
-         free(tmp->key);
-         free(tmp->value);
-         old = tmp;
-         tmp = tmp->next;
-         free(old);
-      }
-      free(conf);
+      free(tmp->key);
+      free(tmp->value);
+      struct entry_list *hold = tmp;
+      tmp = tmp->next;
+      free(hold);
    }
+
+   struct include_list *inc_tmp = conf->includes;
+   while (inc_tmp)
+   {
+      free(inc_tmp->path);
+      struct include_list *hold = inc_tmp;
+      inc_tmp = inc_tmp->next;
+      free(hold);
+   }
+
+   free(conf->path);
+   free(conf);
 }
 
 bool config_get_double(config_file_t *conf, const char *key, double *in)
 {
    struct entry_list *list = conf->entries;
 
-   while (list != NULL)
+   while (list)
    {
       if (strcmp(key, list->key) == 0)
       {
@@ -213,7 +415,7 @@ bool config_get_int(config_file_t *conf, const char *key, int *in)
 {
    struct entry_list *list = conf->entries;
 
-   while (list != NULL)
+   while (list)
    {
       if (strcmp(key, list->key) == 0)
       {
@@ -236,7 +438,7 @@ bool config_get_hex(config_file_t *conf, const char *key, unsigned *in)
 {
    struct entry_list *list = conf->entries;
 
-   while (list != NULL)
+   while (list)
    {
       if (strcmp(key, list->key) == 0)
       {
@@ -259,7 +461,7 @@ bool config_get_char(config_file_t *conf, const char *key, char *in)
 {
    struct entry_list *list = conf->entries;
 
-   while (list != NULL)
+   while (list)
    {
       if (strcmp(key, list->key) == 0)
       {
@@ -277,7 +479,7 @@ bool config_get_string(config_file_t *conf, const char *key, char **str)
 {
    struct entry_list *list = conf->entries;
 
-   while (list != NULL)
+   while (list)
    {
       if (strcmp(key, list->key) == 0)
       {
@@ -293,7 +495,7 @@ bool config_get_array(config_file_t *conf, const char *key, char *buf, size_t si
 {
    struct entry_list *list = conf->entries;
 
-   while (list != NULL)
+   while (list)
    {
       if (strcmp(key, list->key) == 0)
       {
@@ -309,7 +511,7 @@ bool config_get_bool(config_file_t *conf, const char *key, bool *in)
 {
    struct entry_list *list = conf->entries;
 
-   while (list != NULL)
+   while (list)
    {
       if (strcmp(key, list->key) == 0)
       {
@@ -335,14 +537,15 @@ void config_set_string(config_file_t *conf, const char *key, const char *val)
 {
    struct entry_list *list = conf->entries;
    struct entry_list *last = list;
-   while (list != NULL)
+   while (list)
    {
-      if (strcmp(key, list->key) == 0)
+      if (!list->readonly && (strcmp(key, list->key) == 0))
       {
          free(list->value);
          list->value = strdup(val);
          return;
       }
+
       last = list;
       list = list->next;
    }
@@ -406,11 +609,50 @@ bool config_file_write(config_file_t *conf, const char *path)
 
 void config_file_dump(config_file_t *conf, FILE *file)
 {
-   struct entry_list *list = conf->entries;
-
-   while (list != NULL)
+   struct include_list *includes = conf->includes;
+   while (includes)
    {
-      fprintf(file, "%s = \"%s\"\n", list->key, list->value);
+      fprintf(file, "#include \"%s\"\n", includes->path);
+      includes = includes->next;
+   }
+
+   struct entry_list *list = conf->entries;
+   while (list)
+   {
+      if (!list->readonly)
+         fprintf(file, "%s = \"%s\"\n", list->key, list->value);
       list = list->next;
    }
 }
+
+void config_file_dump_all(config_file_t *conf, FILE *file)
+{
+   struct include_list *includes = conf->includes;
+   while (includes)
+   {
+      fprintf(file, "#include \"%s\"\n", includes->path);
+      includes = includes->next;
+   }
+
+   struct entry_list *list = conf->entries;
+   while (list)
+   {
+      fprintf(file, "%s = \"%s\" %s\n", list->key, list->value, list->readonly ? "(included)" : "");
+      list = list->next;
+   }
+}
+
+bool config_entry_exists(config_file_t *conf, const char *entry)
+{
+   struct entry_list *list = conf->entries;
+
+   while (list)
+   {
+      if (strcmp(entry, list->key) == 0)
+         return true;
+      list = list->next;
+   }
+
+   return false;
+}
+

conf/config_file.h

@@ -31,13 +31,21 @@ typedef struct config_file config_file_t;
 // - # are treated as comments. Rest of the line is ignored.
 // - Format is: key = value. There can be as many spaces as you like in-between.
 // - Value can be wrapped inside "" for multiword strings. (foo = "hai u")
+//
+// - #include includes a config file in-place.
+// Path is relative to where config file was loaded unless an absolute path is chosen.
+// Key/value pairs from an #include are read-only, and cannot be modified.
 
-// Loads a config file. Returns NULL if file doesn't exist. NULL path will create an empty config file.
+// Loads a config file. Returns NULL if file doesn't exist.
+// NULL path will create an empty config file.
 config_file_t *config_file_new(const char *path);
 // Frees config file.
 void config_file_free(config_file_t *conf);
 
-// All extract functions return true when value is valid and exists. Returns false otherwise.
+// All extract functions return true when value is valid and exists.
+// Returns false otherwise.
+
+bool config_entry_exists(config_file_t *conf, const char *entry);
 
 // Extracts a double from config file.
 bool config_get_double(config_file_t *conf, const char *entry, double *in);
@@ -54,7 +62,8 @@ bool config_get_array(config_file_t *conf, const char *entry, char *in, size_t s
 // Extracts a boolean from config. Valid boolean true are "true" and "1". Valid false are "false" and "0". Other values will be treated as an error.
 bool config_get_bool(config_file_t *conf, const char *entry, bool *in);
 
-// Setters. Similiar to the getters.
+// Setters. Similar to the getters. Will not write to entry if the entry
+// was obtained from an #include.
 void config_set_double(config_file_t *conf, const char *entry, double value);
 void config_set_int(config_file_t *conf, const char *entry, int val);
 void config_set_char(config_file_t *conf, const char *entry, char val);
@@ -66,7 +75,8 @@ bool config_file_write(config_file_t *conf, const char *path);
 
 // Dump the current config to an already opened file. Does not close the file.
 void config_file_dump(config_file_t *conf, FILE *file);
-
-
+// Also dumps inherited values, useful for logging.
+void config_file_dump_all(config_file_t *conf, FILE *file);
 
 #endif
+

config.def.h

@@ -32,10 +32,6 @@
 
 #include "input/keysym.h"
 
-#ifdef HAVE_SRC
-#include <samplerate.h>
-#endif
-
 ///////////////// Drivers
 #define VIDEO_GL 0
 #define VIDEO_XVIDEO 11
@@ -113,8 +109,9 @@
 ////////////////
 
 // Windowed
-static const float xscale = 3.0; // Real x res = 296 * xscale
-static const float yscale = 3.0; // Real y res = 224 * yscale
+static const float xscale = 3.0; // Real x res = aspect * base_size * xscale
+static const float yscale = 3.0; // Real y res = base_size * yscale
+static const unsigned base_size = 224; // Base size for windowed mode.
 
 // Fullscreen
 static const bool fullscreen = false;  // To start in Fullscreen or not
@@ -188,11 +185,6 @@ static const int out_latency = 64;
 // Will sync audio. (recommended) 
 static const bool audio_sync = true;
 
-// Defines the quality (and cpu reqirements) of samplerate conversion.
-#ifdef HAVE_SRC
-#define SAMPLERATE_QUALITY SRC_LINEAR
-#endif
-
 // Enables use of rewind. This will incur some memory footprint depending on the save state buffer.
 // This rewind only works when using bSNES core atm.
 static const bool rewind_enable = false;
@@ -260,6 +252,7 @@ static const struct snes_keybind snes_keybinds_1[] = {
    { SSNES_REWIND,                     SK_r,      NO_BTN,      AXIS_NONE },
    { SSNES_MOVIE_RECORD_TOGGLE,        SK_o,      NO_BTN,      AXIS_NONE },
    { SSNES_PAUSE_TOGGLE,               SK_p,      NO_BTN,      AXIS_NONE },
+   { SSNES_FRAMEADVANCE,               SK_k,      NO_BTN,      AXIS_NONE },
    { SSNES_RESET,                      SK_h,      NO_BTN,      AXIS_NONE },
    { SSNES_SHADER_NEXT,                SK_m,      NO_BTN,      AXIS_NONE },
    { SSNES_SHADER_PREV,                SK_n,      NO_BTN,      AXIS_NONE },

config.features.h

@@ -116,12 +116,6 @@ static const bool _x264rgb_supp = true;
 static const bool _x264rgb_supp = false;
 #endif
 
-#ifdef HAVE_SRC
-static const bool _src_supp = true;
-#else
-static const bool _src_supp = false;
-#endif
-
 #ifdef HAVE_CONFIGFILE
 static const bool _configfile_supp = true;
 #else

driver.c

@@ -237,7 +237,7 @@ void init_audio(void)
    g_extern.audio_data.nonblock_chunk_size = AUDIO_CHUNK_SIZE_NONBLOCKING;
 
    driver.audio_data = driver.audio->init(strlen(g_settings.audio.device) ? g_settings.audio.device : NULL, g_settings.audio.out_rate, g_settings.audio.latency);
-   if ( driver.audio_data == NULL )
+   if (!driver.audio_data)
       g_extern.audio_active = false;
 
    if (g_extern.audio_active && driver.audio->use_float && driver.audio->use_float(driver.audio_data))
@@ -251,26 +251,28 @@ void init_audio(void)
    else
       g_extern.audio_data.chunk_size = g_extern.audio_data.block_chunk_size;
 
-#ifdef HAVE_SRC
-   int err;
-   g_extern.audio_data.source = src_new(g_settings.audio.src_quality, 2, &err);
+   g_extern.audio_data.source = hermite_new();
    if (!g_extern.audio_data.source)
       g_extern.audio_active = false;
-#else
-   g_extern.audio_data.source = hermite_new(2);
-   if (!g_extern.audio_data.source)
-      g_extern.audio_active = false;
-#endif
 
    size_t max_bufsamples = g_extern.audio_data.block_chunk_size > g_extern.audio_data.nonblock_chunk_size ?
       g_extern.audio_data.block_chunk_size : g_extern.audio_data.nonblock_chunk_size;
 
-   assert(g_settings.audio.out_rate < g_settings.audio.in_rate * AUDIO_MAX_RATIO);
+   max_bufsamples *= 2; // Accomodate rewind since at some point we might have two full buffers.
+
    assert((g_extern.audio_data.data = malloc(max_bufsamples * sizeof(float))));
    g_extern.audio_data.data_ptr = 0;
+   assert(g_settings.audio.out_rate < g_settings.audio.in_rate * AUDIO_MAX_RATIO);
    assert((g_extern.audio_data.outsamples = malloc(max_bufsamples * sizeof(float) * AUDIO_MAX_RATIO)));
    assert((g_extern.audio_data.conv_outsamples = malloc(max_bufsamples * sizeof(int16_t) * AUDIO_MAX_RATIO)));
 
+   // Needs to be able to hold full content of a full max_bufsamples in addition to its own.
+   assert((g_extern.audio_data.rewind_buf = malloc(max_bufsamples * sizeof(int16_t))));
+   g_extern.audio_data.rewind_size = max_bufsamples;
+
+   g_extern.audio_data.src_ratio =
+      (double)g_settings.audio.out_rate / g_settings.audio.in_rate;
+
    init_dsp_plugin();
 }
 
@@ -282,21 +284,16 @@ void uninit_audio(void)
       return;
    }
 
-   if ( driver.audio_data && driver.audio )
+   if (driver.audio_data && driver.audio)
       driver.audio->free(driver.audio_data);
 
-   if ( g_extern.audio_data.source )
-   {
-#ifdef HAVE_SRC
-      src_delete(g_extern.audio_data.source);
-#else
+   if (g_extern.audio_data.source)
       hermite_free(g_extern.audio_data.source);
-#endif
-   }
 
    free(g_extern.audio_data.data); g_extern.audio_data.data = NULL;
    free(g_extern.audio_data.outsamples); g_extern.audio_data.outsamples = NULL;
    free(g_extern.audio_data.conv_outsamples); g_extern.audio_data.conv_outsamples = NULL;
+   free(g_extern.audio_data.rewind_buf); g_extern.audio_data.rewind_buf = NULL;
 
    deinit_dsp_plugin();
 }
@@ -435,13 +432,13 @@ void init_video_input(void)
    {
       if (g_settings.video.force_aspect)
       {
-         width = 224 * g_settings.video.xscale * g_settings.video.aspect_ratio;
-         height = 224 * g_settings.video.yscale;
+         width = roundf(g_settings.video.base_size * g_settings.video.xscale * g_settings.video.aspect_ratio);
+         height = roundf(g_settings.video.base_size * g_settings.video.yscale);
       }
       else
       {
-         width = 256 * g_settings.video.xscale;
-         height = 224 * g_settings.video.yscale;
+         width = roundf(8.0f / 7.0f * g_settings.video.base_size * g_settings.video.xscale); // Assume 8:7 aspect.
+         height = roundf(g_settings.video.base_size * g_settings.video.yscale);
       }
    }
 

driver.h

@@ -41,6 +41,7 @@ enum
    SSNES_REWIND,
    SSNES_MOVIE_RECORD_TOGGLE,
    SSNES_PAUSE_TOGGLE,
+   SSNES_FRAMEADVANCE,
    SSNES_RESET,
    SSNES_SHADER_NEXT,
    SSNES_SHADER_PREV,

dynamic.c

@@ -39,11 +39,11 @@
 #define SYM(type, x) do { \
    p##x = (type)DLSYM(lib_handle, x); \
    if (p##x == NULL) { SSNES_ERR("Failed to load symbol: \"%s\"\n", #x); exit(1); } \
-} while(0)
+} while (0)
 
 #define OPT_SYM(type, x) do { \
    p##x = (type)DLSYM(lib_handle, x); \
-} while(0)
+} while (0)
 
 static dylib_t lib_handle = NULL;
 #endif
@@ -144,7 +144,7 @@ static void load_dynamic(void)
 
 #define SSYM(x) do { \
    p##x = x; \
-} while(0)
+} while (0)
 
 #ifndef HAVE_DYNAMIC
 static void set_statics(void)

file.c

@@ -251,7 +251,7 @@ static ssize_t read_rom_file(FILE* file, void** buf)
          return -1;
       }
 
-      for(;;)
+      for (;;)
       {
          size_t ret = fread(rom_buf + buf_ptr, 1, buf_size - buf_ptr, stdin);
          buf_ptr += ret;

general.h

@@ -20,8 +20,9 @@
 #define __SSNES_GENERAL_H
 
 #include <stdbool.h>
-#include "driver.h"
 #include <stdio.h>
+#include <time.h>
+#include "driver.h"
 #include "record/ffemu.h"
 #include "message.h"
 #include "rewind.h"
@@ -36,14 +37,13 @@
 #include "config.h"
 #endif
 
-#ifdef HAVE_SRC
-#include <samplerate.h>
-#else
 #include "audio/hermite.h"
-#endif
 
 #ifndef _WIN32
 #include <sys/param.h> // MAXPATHLEN
+#else
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
 #endif
 
 #ifndef MAXPATHLEN
@@ -74,6 +74,7 @@ struct settings
       char driver[32];
       float xscale;
       float yscale;
+      unsigned base_size;
       bool fullscreen;
       unsigned fullscreen_x;
       unsigned fullscreen_y;
@@ -121,7 +122,6 @@ struct settings
       char device[MAXPATHLEN];
       unsigned latency;
       bool sync;
-      int src_quality;
 
       char dsp_plugin[MAXPATHLEN];
       char external_driver[MAXPATHLEN];
@@ -210,11 +210,7 @@ struct global
 
    struct
    {
-#ifdef HAVE_SRC
-      SRC_STATE *source;
-#else
       hermite_resampler_t *source;
-#endif
 
       float *data;
       size_t data_ptr;
@@ -222,11 +218,17 @@ struct global
       size_t nonblock_chunk_size;
       size_t block_chunk_size;
 
+      double src_ratio;
+
       bool use_float;
 
       float *outsamples;
       int16_t *conv_outsamples;
 
+      int16_t *rewind_buf;
+      size_t rewind_ptr;
+      size_t rewind_size;
+
       dylib_t dsp_lib;
       const ssnes_dsp_plugin_t *dsp_plugin;
       void *dsp_handle;
@@ -261,6 +263,7 @@ struct global
 
    // Pausing support
    bool is_paused;
+   bool is_oneshot;
 
    // Autosave support.
    autosave_t *autosave[2];
@@ -282,6 +285,13 @@ struct global
    unsigned record_height;
 #endif
 
+   struct
+   {
+      const uint16_t *data;
+      unsigned width;
+      unsigned height;
+   } frame_cache;
+
    char title_buf[64];
 
    struct
@@ -309,17 +319,17 @@ extern struct global g_extern;
    if (g_extern.verbose) \
       fprintf(stderr, "SSNES: " __VA_ARGS__); \
       fflush(stderr); \
-   } while(0)
+   } while (0)
 
 #define SSNES_ERR(...) do { \
       fprintf(stderr, "SSNES [ERROR] :: " __VA_ARGS__); \
       fflush(stderr); \
-   } while(0)
+   } while (0)
 
 #define SSNES_WARN(...) do { \
       fprintf(stderr, "SSNES [WARN] :: " __VA_ARGS__); \
       fflush(stderr); \
-   } while(0)
+   } while (0)
 
 static inline uint32_t next_pow2(uint32_t v)
 {
@@ -345,6 +355,19 @@ static inline uint8_t is_little_endian(void)
    return u.y[0];
 }
 
+static inline void ssnes_sleep(unsigned usec)
+{
+#ifdef _WIN32
+   Sleep(10);
+#else
+   struct timespec tv = {
+      .tv_sec = 0,
+      .tv_nsec = 10000000
+   };
+   nanosleep(&tv, NULL);
+#endif
+}
+
 #endif
 
 

gfx/ext.c

@@ -25,6 +25,11 @@
 #include "dynamic.h"
 #include "general.h"
 #include "sdlwrap.h"
+#include "gfx_common.h"
+
+#ifdef HAVE_FREETYPE
+#include "fonts.h"
+#endif
 
 static bool g_input_dead = true;
 static bool g_video_dead = true;
@@ -240,6 +245,21 @@ static bool setup_video(ext_t *ext, const video_info_t *video, const input_drive
    font_color_g = font_color_g > 255 ? 255 : (font_color_g < 0 ? 0 : font_color_g);
    font_color_b = font_color_b > 255 ? 255 : (font_color_b < 0 ? 0 : font_color_b);
 
+   const char *font = NULL;
+#ifdef HAVE_FREETYPE
+   if (*g_settings.video.font_path)
+      font = g_settings.video.font_path;
+   else
+      font = font_renderer_get_default_font();
+#else
+   font = *g_settings.video.font_path ?
+      g_settings.video.font_path : NULL;
+#endif
+
+   char title_buf[128];
+   gfx_window_title_reset();
+   gfx_window_title(title_buf, sizeof(title_buf));
+
    ssnes_video_info_t info = {
       .width = video->width,
       .height = video->height,
@@ -252,9 +272,10 @@ static bool setup_video(ext_t *ext, const video_info_t *video, const input_drive
       .color_format = video->rgb32 ? SSNES_COLOR_FORMAT_ARGB8888 : SSNES_COLOR_FORMAT_XRGB1555,
       .xml_shader = xml_shader,
       .cg_shader = cg_shader,
-      .ttf_font = *g_settings.video.font_path ? g_settings.video.font_path : NULL,
+      .ttf_font = font,
       .ttf_font_size = g_settings.video.font_size,
       .ttf_font_color = (font_color_r << 16) | (font_color_g << 8) | (font_color_b << 0),
+      .title_hint = title_buf,
    };
 
    const ssnes_input_driver_t *input_driver = NULL;

gfx/ext/ssnes_video.h

@@ -108,7 +108,10 @@ typedef struct ssnes_video_info
    // Can be disregarded.
    const char *ttf_font;
    unsigned ttf_font_size;
-   unsigned ttf_font_color; // Font color, in format RGB888.
+   unsigned ttf_font_color; // Font color, in format ARGB8888. Alpha should be disregarded.
+
+   // A title that should be displayed in the title bar of the window.
+   const char *title_hint;
 } ssnes_video_info_t;
 
 // Some convenience macros.
@@ -119,7 +122,7 @@ typedef struct ssnes_video_info
 
 // I hope no joypad will ever have this many buttons or axes ... ;)
 // If joykey is this value, do not check that button.
-#define SSNES_NO_AXIS ((unsigned short)0xFFFFU)
+#define SSNES_NO_AXIS (0xFFFFFFFFU)
 #define SSNES_NO_BTN ((unsigned short)0xFFFFU)
 
 // Masks to test on joykey which hat direction is to be tested for.
@@ -236,7 +239,7 @@ typedef struct ssnes_video_driver
    const char *ident;
 
    // Needs to be defined to SSNES_GRAPHICS_API_VERSION. 
-   // This is used to detect API mismatches.
+   // This is used to detect API/ABI mismatches.
    int api_version;
 } ssnes_video_driver_t;
 

gfx/gl.c

@@ -842,19 +842,14 @@ static void check_window(gl_t *gl)
          gl->frame_count);
 
    if (quit)
-   {
       gl->quitting = true;
-   }
    else if (resize)
-   {
       gl->should_resize = true;
-   }
 }
 
 static bool gl_frame(void *data, const void* frame, unsigned width, unsigned height, unsigned pitch, const char *msg)
 {
    gl_t *gl = data;
-   check_window(gl);
 
    gl_shader_use(1);
    gl->frame_count++;
@@ -1336,6 +1331,7 @@ static void* gl_init(const video_info_t *video, const input_driver_t **input, vo
 static bool gl_alive(void *data)
 {
    gl_t *gl = data;
+   check_window(gl);
    return !gl->quitting;
 }
 

gfx/sdl.c

@@ -465,7 +465,6 @@ static void check_window(sdl_video_t *vid)
 static bool sdl_gfx_frame(void *data, const void* frame, unsigned width, unsigned height, unsigned pitch, const char *msg)
 {
    sdl_video_t *vid = data;
-   check_window(vid);
 
    if (SDL_MUSTLOCK(vid->buffer))
       SDL_LockSurface(vid->buffer);
@@ -537,6 +536,7 @@ static void sdl_gfx_set_nonblock_state(void *data, bool state)
 static bool sdl_gfx_alive(void *data)
 {
    sdl_video_t *vid = data;
+   check_window(vid);
    return !vid->quitting;
 }
 

input/sdl.c

@@ -55,6 +55,7 @@ static const struct key_bind lut_binds[] = {
    { SDLK_KP_MULTIPLY, SK_KP_MULTIPLY },
    { SDLK_KP_DIVIDE, SK_KP_DIVIDE },
    { SDLK_BACKQUOTE, SK_BACKQUOTE },
+   { SDLK_PAUSE, SK_PAUSE },
    { SDLK_KP0, SK_KP0 },
    { SDLK_KP1, SK_KP1 },
    { SDLK_KP2, SK_KP2 },

input/x11_input.c

@@ -65,6 +65,7 @@ static const struct key_bind lut_binds[] = {
    { XK_KP_Multiply, SK_KP_MULTIPLY },
    { XK_KP_Divide, SK_KP_DIVIDE },
    { XK_grave, SK_BACKQUOTE },
+   { XK_Pause, SK_PAUSE },
    { XK_KP_0, SK_KP0 },
    { XK_KP_1, SK_KP1 },
    { XK_KP_2, SK_KP2 },

movie.c

@@ -78,7 +78,7 @@ uint32_t crc32_adjust(uint32_t crc32, uint8_t input)
 uint32_t crc32_calculate(const uint8_t *data, unsigned length)
 {
    uint32_t crc32 = ~0;
-   for(unsigned i = 0; i < length; i++)
+   for (unsigned i = 0; i < length; i++)
       crc32 = crc32_adjust(crc32, data[i]);
    return ~crc32;
 }

netplay.c

@@ -15,6 +15,25 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifdef _WIN32
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x0501
+#endif
+#define WIN32_LEAN_AND_MEAN
+#include <winsock2.h>
+#include <windows.h>
+#include <ws2tcpip.h>
+#else
+#include <sys/select.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <signal.h>
+#endif
+
 #include "netplay.h"
 #include "general.h"
 #include "autosave.h"
@@ -25,32 +44,17 @@
 #include <sys/time.h>
 #include <assert.h>
 
+
 #ifdef _WIN32
-#ifndef _WIN32_WINNT
-#define _WIN32_WINNT 0x0501
-#endif
-#define WIN32_LEAN_AND_MEAN
-#include <winsock2.h>
-#include <windows.h>
-#include <ws2tcpip.h>
 // Woohoo, Winsock has headers from the STONE AGE! :D
 #define close(x) closesocket(x)
 #define CONST_CAST (const char*)
 #define NONCONST_CAST (char*)
 #else
-#include <sys/select.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <signal.h>
 #define CONST_CAST
 #define NONCONST_CAST
 #endif
 
-
 #define PREV_PTR(x) ((x) == 0 ? handle->buffer_size - 1 : (x) - 1)
 #define NEXT_PTR(x) ((x + 1) % handle->buffer_size)
 

qb/config.libs.sh

@@ -82,8 +82,6 @@ if [ $HAVE_FFMPEG = yes ]; then
    check_lib FFMPEG_AVFORMAT_WRITE_HEADER "$AVFORMAT_LIBS" avformat_write_header
 fi
 
-check_pkgconf SRC samplerate
-
 check_lib DYNAMIC $DYLIB dlopen
 
 check_pkgconf FREETYPE freetype2
@@ -96,7 +94,7 @@ check_pkgconf PYTHON python3
 add_define_make OS $OS
 
 # Creates config.mk and config.h.
-VARS="ALSA OSS OSS_BSD OSS_LIB AL RSOUND ROAR JACK COREAUDIO PULSE SDL DYLIB CG XML SDL_IMAGE DYNAMIC FFMPEG AVCODEC AVFORMAT AVUTIL SWSCALE SRC CONFIGFILE FREETYPE XVIDEO NETPLAY FBO STRL PYTHON FFMPEG_ALLOC_CONTEXT3 FFMPEG_AVCODEC_OPEN2 FFMPEG_AVIO_OPEN FFMPEG_AVFORMAT_WRITE_HEADER X264RGB"
+VARS="ALSA OSS OSS_BSD OSS_LIB AL RSOUND ROAR JACK COREAUDIO PULSE SDL DYLIB CG XML SDL_IMAGE DYNAMIC FFMPEG AVCODEC AVFORMAT AVUTIL SWSCALE CONFIGFILE FREETYPE XVIDEO NETPLAY FBO STRL PYTHON FFMPEG_ALLOC_CONTEXT3 FFMPEG_AVCODEC_OPEN2 FFMPEG_AVIO_OPEN FFMPEG_AVFORMAT_WRITE_HEADER X264RGB"
 create_config_make config.mk $VARS
 create_config_header config.h $VARS
 

qb/config.params.sh

@@ -1,7 +1,7 @@
 . qb/qb.params.sh
 
 PACKAGE_NAME=ssnes
-PACKAGE_VERSION=0.9-rc2
+PACKAGE_VERSION=0.9
 
 # Adds a command line opt to ./configure --help
 # $1: Variable (HAVE_ALSA, HAVE_OSS, etc)   
@@ -13,7 +13,6 @@ add_command_line_enable FFMPEG "Enable FFmpeg recording support" no
 add_command_line_enable X264RGB "Enable lossless X264 RGB recording" no
 add_command_line_enable DYLIB "Enable dynamic loading support" auto
 add_command_line_enable NETPLAY "Enable netplay support" auto
-add_command_line_enable SRC "Enable libsamplerate support" no
 add_command_line_enable CONFIGFILE "Disable support for config file" yes
 add_command_line_enable CG "Enable Cg shader support" auto
 add_command_line_enable XML "Enable bSNES-style XML shader support" auto

rewind.c

@@ -29,7 +29,6 @@ struct state_manager
    uint64_t *buffer;
    size_t buf_size;
    uint32_t *tmp_state;
-   uint32_t *scratch_buf;
    size_t top_ptr;
    size_t bottom_ptr;
    size_t state_size;

settings.c

@@ -120,6 +120,7 @@ static void set_defaults(void)
 
    g_settings.video.xscale = xscale;
    g_settings.video.yscale = yscale;
+   g_settings.video.base_size = base_size;
    g_settings.video.fullscreen = g_extern.force_fullscreen ? true : fullscreen;
    g_settings.video.fullscreen_x = fullscreen_x;
    g_settings.video.fullscreen_y = fullscreen_y;
@@ -161,10 +162,6 @@ static void set_defaults(void)
    g_settings.audio.latency = out_latency;
    g_settings.audio.sync = audio_sync;
 
-#ifdef HAVE_SRC
-   g_settings.audio.src_quality = SAMPLERATE_QUALITY;
-#endif
-
    g_settings.rewind_enable = rewind_enable;
    g_settings.rewind_buffer_size = rewind_buffer_size;
    g_settings.rewind_granularity = rewind_granularity;
@@ -292,7 +289,11 @@ static void parse_config_file(void)
       return;
 
    if (g_extern.verbose)
-      config_file_dump(conf, stderr);
+   {
+      fprintf(stderr, "=== Config ===\n");
+      config_file_dump_all(conf, stderr);
+      fprintf(stderr, "=== Config end ===\n");
+   }
 
    int tmp_int;
    double tmp_double;
@@ -301,6 +302,7 @@ static void parse_config_file(void)
 
    CONFIG_GET_DOUBLE(video.xscale, "video_xscale");
    CONFIG_GET_DOUBLE(video.yscale, "video_yscale");
+   CONFIG_GET_INT(video.base_size, "video_base_size");
    CONFIG_GET_INT(video.fullscreen_x, "video_fullscreen_x");
    CONFIG_GET_INT(video.fullscreen_y, "video_fullscreen_y");
 
@@ -384,17 +386,6 @@ static void parse_config_file(void)
    CONFIG_GET_INT(audio.latency, "audio_latency");
    CONFIG_GET_BOOL(audio.sync, "audio_sync");
 
-#ifdef HAVE_SRC
-   if (config_get_int(conf, "audio_src_quality", &tmp_int))
-   {
-      int quals[] = { SRC_ZERO_ORDER_HOLD, SRC_LINEAR, SRC_SINC_FASTEST, 
-         SRC_SINC_MEDIUM_QUALITY, SRC_SINC_BEST_QUALITY };
-
-      if (tmp_int > 0 && tmp_int < 6)
-         g_settings.audio.src_quality = quals[tmp_int];
-   }
-#endif
-
    CONFIG_GET_STRING(video.driver, "video_driver");
    CONFIG_GET_STRING(audio.driver, "audio_driver");
    CONFIG_GET_STRING(audio.dsp_plugin, "audio_dsp_plugin");
@@ -488,6 +479,7 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(rewind,                SSNES_REWIND)
       DECLARE_BIND(movie_record_toggle,   SSNES_MOVIE_RECORD_TOGGLE)
       DECLARE_BIND(pause_toggle,          SSNES_PAUSE_TOGGLE)
+      DECLARE_BIND(frame_advance,         SSNES_FRAMEADVANCE)
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
@@ -523,6 +515,7 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(rewind,                SSNES_REWIND)
       DECLARE_BIND(movie_record_toggle,   SSNES_MOVIE_RECORD_TOGGLE)
       DECLARE_BIND(pause_toggle,          SSNES_PAUSE_TOGGLE)
+      DECLARE_BIND(frame_advance,         SSNES_FRAMEADVANCE)
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
@@ -558,6 +551,7 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(rewind,                SSNES_REWIND)
       DECLARE_BIND(movie_record_toggle,   SSNES_MOVIE_RECORD_TOGGLE)
       DECLARE_BIND(pause_toggle,          SSNES_PAUSE_TOGGLE)
+      DECLARE_BIND(frame_advance,         SSNES_FRAMEADVANCE)
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
@@ -593,6 +587,7 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(rewind,                SSNES_REWIND)
       DECLARE_BIND(movie_record_toggle,   SSNES_MOVIE_RECORD_TOGGLE)
       DECLARE_BIND(pause_toggle,          SSNES_PAUSE_TOGGLE)
+      DECLARE_BIND(frame_advance,         SSNES_FRAMEADVANCE)
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
@@ -628,6 +623,7 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(rewind,                SSNES_REWIND)
       DECLARE_BIND(movie_record_toggle,   SSNES_MOVIE_RECORD_TOGGLE)
       DECLARE_BIND(pause_toggle,          SSNES_PAUSE_TOGGLE)
+      DECLARE_BIND(frame_advance,         SSNES_FRAMEADVANCE)
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
@@ -711,6 +707,7 @@ static const struct key_map sk_map[] = {
    { "scroll_lock", SK_SCROLLOCK },
    { "tilde", SK_BACKQUOTE },
    { "backquote", SK_BACKQUOTE },
+   { "pause", SK_PAUSE },
    { "nul", SK_UNKNOWN },
 };
 

ssnes.c

@@ -15,7 +15,6 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
-
 #include <stdbool.h>
 #include <libsnes.hpp>
 #include <stdio.h>
@@ -23,7 +22,6 @@
 #include <string.h>
 #include <ctype.h>
 #include <getopt.h>
-#include <time.h>
 #include <errno.h>
 #include "driver.h"
 #include "file.h"
@@ -36,17 +34,14 @@
 #include "strl.h"
 #include "screenshot.h"
 #include "cheats.h"
+#include "audio/utils.h"
 #include <assert.h>
-#ifdef HAVE_SRC
-#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, 
@@ -186,42 +181,61 @@ static void video_frame(const uint16_t *data, unsigned width, unsigned height)
    if (!driver.video->frame(driver.video_data, data, width, height, (height == 448 || height == 478) ? 1024 : 2048, msg))
       g_extern.video_active = false;
 #endif
+
+   g_extern.frame_cache.data = data;
+   g_extern.frame_cache.width = width;
+   g_extern.frame_cache.height = height;
 }
 
-static void audio_sample(uint16_t left, uint16_t right)
+static void video_cached_frame(void)
 {
-   if (!g_extern.audio_active)
-      return;
+#ifdef HAVE_FFMPEG
+   // Cannot allow FFmpeg recording when pushing duped frames.
+   bool recording = g_extern.recording;
+   g_extern.recording = false;
+#endif
 
-   const float *output_data = NULL;
-   unsigned output_frames = 0;
+   // Not 100% safe, since the library might have
+   // freed the memory, but no known implementations do this :D
+   // It would be really stupid at any rate ...
+   if (g_extern.frame_cache.data)
+   {
+      // Push the pipeline through. A hack sort of.
+      SSNES_LOG("Pushing cached frame.\n");
+      video_frame(g_extern.frame_cache.data,
+            g_extern.frame_cache.width,
+            g_extern.frame_cache.height);
+   }
 
 #ifdef HAVE_FFMPEG
-   g_extern.audio_data.conv_outsamples[g_extern.audio_data.data_ptr] = left;
+   g_extern.recording = recording;
 #endif
-   g_extern.audio_data.data[g_extern.audio_data.data_ptr++] = (float)(int16_t)left/0x8000; 
-#ifdef HAVE_FFMPEG
-   g_extern.audio_data.conv_outsamples[g_extern.audio_data.data_ptr] = right;
-#endif
-   g_extern.audio_data.data[g_extern.audio_data.data_ptr++] = (float)(int16_t)right/0x8000;
-
-   if (g_extern.audio_data.data_ptr < g_extern.audio_data.chunk_size)
-      return;
+}
 
+static bool audio_flush(const int16_t *data, unsigned samples)
+{
 #ifdef HAVE_FFMPEG
    if (g_extern.recording)
    {
       struct ffemu_audio_data ffemu_data = {
-         .data = g_extern.audio_data.conv_outsamples,
-         .frames = g_extern.audio_data.data_ptr / 2
+         .data = data,
+         .frames = samples / 2
       };
       ffemu_push_audio(g_extern.rec, &ffemu_data);
    }
 #endif
 
+   if (g_extern.is_paused)
+      return true;
+
+   const float *output_data = NULL;
+   unsigned output_frames = 0;
+
+   audio_convert_s16_to_float(g_extern.audio_data.data, data, samples);
+
    ssnes_dsp_input_t dsp_input = {
       .samples = g_extern.audio_data.data,
-      .frames = g_extern.audio_data.data_ptr / 2
+      .frames = samples / 2
    };
 
    ssnes_dsp_output_t dsp_output = {
@@ -231,29 +245,17 @@ static void audio_sample(uint16_t left, uint16_t right)
    if (g_extern.audio_data.dsp_plugin)
       g_extern.audio_data.dsp_plugin->process(g_extern.audio_data.dsp_handle, &dsp_output, &dsp_input);
 
-   if (g_extern.frame_is_reverse) // Disable fucked up audio when rewinding...
-      memset(g_extern.audio_data.data, 0, g_extern.audio_data.chunk_size * sizeof(float));
-
-#ifdef HAVE_SRC
-   SRC_DATA src_data = {
-#else
    struct hermite_data src_data = {
-#endif
       .data_in = dsp_output.samples ? dsp_output.samples : g_extern.audio_data.data,
       .data_out = g_extern.audio_data.outsamples,
-      .input_frames = dsp_output.samples ? dsp_output.frames : (g_extern.audio_data.data_ptr / 2),
-      .output_frames = g_extern.audio_data.chunk_size * 8,
-      .end_of_input = 0,
-      .src_ratio = (double)g_settings.audio.out_rate / (double)g_settings.audio.in_rate,
+      .input_frames = dsp_output.samples ? dsp_output.frames : (samples / 2),
+      .ratio = g_extern.audio_data.src_ratio,
+      .output_frames = samples * g_extern.audio_data.src_ratio,
    };
 
    if (dsp_output.should_resample)
    {
-#ifdef HAVE_SRC
-      src_process(g_extern.audio_data.source, &src_data);
-#else
       hermite_process(g_extern.audio_data.source, &src_data);
-#endif
 
       output_data = g_extern.audio_data.outsamples;
       output_frames = src_data.output_frames_gen;
@@ -264,30 +266,52 @@ static void audio_sample(uint16_t left, uint16_t right)
       output_frames = dsp_output.frames;
    }
 
-
    if (g_extern.audio_data.use_float)
    {
       if (driver.audio->write(driver.audio_data, output_data, output_frames * sizeof(float) * 2) < 0)
       {
          fprintf(stderr, "SSNES [ERROR]: Audio backend failed to write. Will continue without sound.\n");
-         g_extern.audio_active = false;
+         return false;
       }
    }
    else
    {
-      for (unsigned i = 0; i < output_frames * 2; i++)
-      {
-         int32_t val = output_data[i] * 0x8000;
-         g_extern.audio_data.conv_outsamples[i] = (val > 0x7FFF) ? 0x7FFF : (val < -0x8000 ? -0x8000 : (int16_t)val);
-      }
+      audio_convert_float_to_s16(g_extern.audio_data.conv_outsamples,
+            output_data, output_frames * 2);
 
       if (driver.audio->write(driver.audio_data, g_extern.audio_data.conv_outsamples, output_frames * sizeof(int16_t) * 2) < 0)
       {
          fprintf(stderr, "SSNES [ERROR]: Audio backend failed to write. Will continue without sound.\n");
-         g_extern.audio_active = false;
+         return false;
       }
    }
 
+   return true;
+}
+
+static void audio_sample_rewind(uint16_t left, uint16_t right)
+{
+   if (!g_extern.audio_active)
+      return;
+
+   g_extern.audio_data.rewind_buf[--g_extern.audio_data.rewind_ptr] = right;
+   g_extern.audio_data.rewind_buf[--g_extern.audio_data.rewind_ptr] = left;
+}
+
+static void audio_sample(uint16_t left, uint16_t right)
+{
+   if (!g_extern.audio_active)
+      return;
+
+   g_extern.audio_data.conv_outsamples[g_extern.audio_data.data_ptr++] = left;
+   g_extern.audio_data.conv_outsamples[g_extern.audio_data.data_ptr++] = right;
+
+   if (g_extern.audio_data.data_ptr < g_extern.audio_data.chunk_size)
+      return;
+
+   g_extern.audio_active = audio_flush(g_extern.audio_data.conv_outsamples,
+         g_extern.audio_data.data_ptr);
+
    g_extern.audio_data.data_ptr = 0;
 }
 
@@ -318,7 +342,10 @@ static int16_t input_state(bool port, unsigned device, unsigned index, unsigned
       g_settings.input.binds[4]
    };
 
-   int16_t res = driver.input->input_state(driver.input_data, binds, port, device, index, id);
+   int16_t res = 0;
+   if (id < 12)
+      res = driver.input->input_state(driver.input_data, binds, port, device, index, id);
+
    if (g_extern.bsv_movie && !g_extern.bsv_movie_playback)
       bsv_movie_set_input(g_extern.bsv_movie, res);
 
@@ -334,7 +361,7 @@ static int16_t input_state(bool port, unsigned device, unsigned index, unsigned
 #endif
 
 #ifdef _WIN32
-#define PACKAGE_VERSION "0.9-rc2"
+#define PACKAGE_VERSION "0.9"
 #endif
 
 #include "config.features.h"
@@ -362,7 +389,6 @@ static void print_features(void)
    _PSUPP(dynamic, "Dynamic", "Dynamic run-time loading of libsnes library");
    _PSUPP(ffmpeg, "FFmpeg", "On-the-fly recording of gameplay with libavcodec");
    _PSUPP(x264rgb, "x264 RGB", "x264 lossless RGB recording for FFmpeg");
-   _PSUPP(src, "SRC", "libsamplerate audio resampling");
    _PSUPP(configfile, "Config file", "Configuration file support");
    _PSUPP(freetype, "FreeType", "TTF font rendering with FreeType");
    _PSUPP(netplay, "Netplay", "Peer-to-peer netplay");
@@ -559,7 +585,7 @@ static void parse_input(int argc, char *argv[])
 #endif
 
    char optstring[] = "hs:fvS:m:p4jJg:b:B:Y:Z:P:HC:F:U:DN:X:" FFMPEG_RECORD_ARG CONFIG_FILE_ARG;
-   for(;;)
+   for (;;)
    {
       val = 0;
       int c = getopt_long(argc, argv, optstring, opts, &option_index);
@@ -1270,19 +1296,25 @@ static void check_savestates(void)
    old_should_loadstate = should_loadstate;
 }
 
-static void check_fullscreen(void)
+static bool check_fullscreen(void)
 {
-   static bool was_pressed = false;
-   bool pressed;
    // If we go fullscreen we drop all drivers and reinit to be safe.
-   if ((pressed = driver.input->key_pressed(driver.input_data, SSNES_FULLSCREEN_TOGGLE_KEY)) && !was_pressed)
+   static bool was_pressed = false;
+   bool pressed = driver.input->key_pressed(driver.input_data, SSNES_FULLSCREEN_TOGGLE_KEY);
+   bool toggle = pressed && !was_pressed;
+   if (toggle)
    {
       g_settings.video.fullscreen = !g_settings.video.fullscreen;
       uninit_drivers();
       init_drivers();
+
+      // Poll input to avoid possibly stale data to corrupt things.
+      if (driver.input)
+         driver.input->poll(driver.input_data);
    }
 
    was_pressed = pressed;
+   return toggle;
 }
 
 static void check_stateslots(void)
@@ -1338,12 +1370,42 @@ static void check_input_rate(void)
       msg_queue_clear(g_extern.msg_queue);
       msg_queue_push(g_extern.msg_queue, msg, 0, 180);
       SSNES_LOG("%s\n", msg);
+
+      g_extern.audio_data.src_ratio =
+         (double)g_settings.audio.out_rate / g_settings.audio.in_rate;
    }
 }
 
+static inline void flush_rewind_audio(void)
+{
+   if (g_extern.frame_is_reverse && g_extern.audio_active) // We just rewound. Flush rewind audio buffer.
+   {
+      g_extern.audio_active = audio_flush(g_extern.audio_data.rewind_buf + g_extern.audio_data.rewind_ptr,
+            g_extern.audio_data.rewind_size - g_extern.audio_data.rewind_ptr);
+   }
+}
+
+static inline void setup_rewind_audio(void)
+{
+   // Push audio ready to be played.
+   g_extern.audio_data.rewind_ptr = g_extern.audio_data.rewind_size;
+   for (unsigned i = 0; i < g_extern.audio_data.data_ptr; i += 2)
+   {
+      g_extern.audio_data.rewind_buf[--g_extern.audio_data.rewind_ptr] =
+         g_extern.audio_data.conv_outsamples[i + 1];
+
+      g_extern.audio_data.rewind_buf[--g_extern.audio_data.rewind_ptr] =
+         g_extern.audio_data.conv_outsamples[i + 0];
+   }
+
+   g_extern.audio_data.data_ptr = 0;
+}
+
 static void check_rewind(void)
 {
+   flush_rewind_audio();
    g_extern.frame_is_reverse = false;
+
    static bool first = true;
    if (first)
    {
@@ -1361,13 +1423,13 @@ static void check_rewind(void)
       if (state_manager_pop(g_extern.state_manager, &buf))
       {
          g_extern.frame_is_reverse = true;
-         msg_queue_push(g_extern.msg_queue, "Rewinding!", 0, 30);
+         setup_rewind_audio();
+
+         msg_queue_push(g_extern.msg_queue, "Rewinding!", 0, g_extern.is_paused ? 1 : 30);
          psnes_unserialize(buf, psnes_serialize_size());
 
          if (g_extern.bsv_movie)
-         {
             bsv_movie_frame_rewind(g_extern.bsv_movie);
-         }
       }
       else
          msg_queue_push(g_extern.msg_queue, "Reached end of rewind buffer!", 0, 30);
@@ -1382,6 +1444,8 @@ static void check_rewind(void)
          state_manager_push(g_extern.state_manager, g_extern.state_buf);
       }
    }
+
+   psnes_set_audio_sample(g_extern.frame_is_reverse ? audio_sample_rewind : audio_sample);
 }
 
 static void check_movie_record(void)
@@ -1426,6 +1490,9 @@ static void check_pause(void)
    static bool old_state = false;
    bool new_state = driver.input->key_pressed(driver.input_data, SSNES_PAUSE_TOGGLE);
 
+   // FRAMEADVANCE will set us into pause mode.
+   new_state |= !g_extern.is_paused && driver.input->key_pressed(driver.input_data, SSNES_FRAMEADVANCE);
+
    static bool old_focus = true;
    bool focus = true;
 
@@ -1480,6 +1547,20 @@ static void check_pause(void)
    old_state = new_state;
 }
 
+static void check_oneshot(void)
+{
+   static bool old_state = false;
+   bool new_state = driver.input->key_pressed(driver.input_data, SSNES_FRAMEADVANCE);
+   g_extern.is_oneshot = (new_state && !old_state);
+   old_state = new_state;
+
+   // Rewind buttons works like FRAMEREWIND when paused. We will one-shot in that case.
+   static bool old_rewind_state = false;
+   bool new_rewind_state = driver.input->key_pressed(driver.input_data, SSNES_REWIND);
+   g_extern.is_oneshot |= new_rewind_state && !old_rewind_state;
+   old_rewind_state = new_rewind_state;
+}
+
 static void check_reset(void)
 {
    if (driver.input->key_pressed(driver.input_data, SSNES_RESET))
@@ -1592,12 +1673,13 @@ static void do_state_checks(void)
 {
    if (!g_extern.netplay)
    {
-      check_reset();
-#ifdef HAVE_XML
-      check_cheats();
-#endif
       check_pause();
-      if (g_extern.is_paused)
+      check_oneshot();
+
+      if (check_fullscreen() && g_extern.is_paused)
+         video_cached_frame();
+
+      if (g_extern.is_paused && !g_extern.is_oneshot)
          return;
 
       set_fast_forward_button(
@@ -1609,21 +1691,23 @@ static void do_state_checks(void)
          check_stateslots();
          check_savestates();
       }
-      check_rewind();
 
+      check_rewind();
       if (!g_extern.bsv_movie_playback)
          check_movie_record();
-
+     
 #ifdef HAVE_XML
       check_shader_dir();
+      check_cheats();
 #endif
 
 #ifdef HAVE_DYLIB
       check_dsp_config();
 #endif
+      check_reset();
    }
-
-   check_fullscreen();
+   else
+      check_fullscreen();
 
 #ifdef HAVE_DYLIB
    // DSP plugin doesn't use variable input rate.
@@ -1725,7 +1809,7 @@ int main(int argc, char *argv[])
       do_state_checks();
       
       // Run libsnes for one frame.
-      if (!g_extern.is_paused)
+      if (!g_extern.is_paused || g_extern.is_oneshot)
       {
          lock_autosave();
 
@@ -1750,15 +1834,7 @@ int main(int argc, char *argv[])
       else
       {
          input_poll();
-#ifdef _WIN32
-         Sleep(10);
-#else
-         struct timespec tv = {
-            .tv_sec = 0,
-            .tv_nsec = 10000000
-         };
-         nanosleep(&tv, NULL);
-#endif
+         ssnes_sleep(10);
       }
    }
 

ssnes.cfg

@@ -19,10 +19,14 @@
 # Path to external video driver using the SSNES driver API.
 # video_external_driver =
 
-# Windowed xscale and yscale (Real x res: 224 * xscale * aspect_ratio, real y scale: 224 * xscale)
+# Windowed xscale and yscale
+# (Real x res: base_size * xscale * aspect_ratio, real y res: base_size * yscale)
 # video_xscale = 3.0
 # video_yscale = 3.0
 
+# Base size for windowed mode calculations. Generally 224 for SNES, but can be modified.
+# video_base_size = 224
+
 # Fullscreen resolution. Resolution of 0 uses the resolution of the desktop.
 # video_fullscreen_x = 0
 # video_fullscreen_y = 0
@@ -132,8 +136,6 @@
 # Desired audio latency in milliseconds. Might not be honored if driver can't provide given latency.
 # audio_latency = 64
 
-# libsamplerate quality. Valid values are from 1 to 5. These values map to zero_order_hold, linear, sinc_fastest, sinc_medium and sinc_best respectively.
-# audio_src_quality =
 
 ### Input
 
@@ -275,6 +277,9 @@
 # Toggle between paused and non-paused state
 # input_pause_toggle = p
 
+# Frame advance when game is paused
+# input_frame_advance = k
+
 # Reset the emulated SNES.
 # input_reset = h
 

tools/ssnes-joyconfig.c

@@ -92,6 +92,7 @@ static struct bind binds[] = {
    MISC_BIND("Rewind", rewind)
    MISC_BIND("Movie recording toggle", movie_record_toggle)
    MISC_BIND("Pause", pause_toggle)
+   MISC_BIND("Frame advance", frame_advance)
    MISC_BIND("Reset", reset)
    MISC_BIND("Next shader", shader_next)
    MISC_BIND("Previous shader", shader_prev)
@@ -235,7 +236,7 @@ static void parse_input(int argc, char *argv[])
    };
 
    int option_index = 0;
-   for(;;)
+   for (;;)
    {
       int c = getopt_long(argc, argv, optstring, opts, &option_index);
       if (c == -1)