throttle the ui to 60 fps

ran latest clang-format

src/emulator.c

@@ -617,7 +617,14 @@ void emu_render_frame(struct emu *emu) {
   r_clear(emu->r);
 
   if (!dc_running(emu->dc)) {
+    /* since the host times itself based off of our audio output, it's important
+       to pump out silent audio frames even when not running the dreamcast, else
+       the host will render the ui completely unthrottled  */
+    uint32_t silence[AICA_SAMPLE_FREQ / 60] = {0};
+    audio_push(emu->host, (int16_t *)silence, ARRAY_SIZE(silence));
+
     emu_debug_menu(emu);
+
     return;
   }
 

src/file/trace.h

@@ -16,7 +16,7 @@ struct trace_cmd {
   /* set on read */
   struct trace_cmd *prev;
   struct trace_cmd *next;
-  struct trace_cmd * override;
+  struct trace_cmd *override;
 
   /* the data pointers in these structs are written out relative to the cmd,
      and patched to absolute pointers on read */

src/host/retro_host.c

@@ -5,11 +5,12 @@
 #include "core/core.h"
 #include "core/filesystem.h"
 #include "emulator.h"
+#include "guest/aica/aica.h"
 #include "host/host.h"
 #include "options.h"
 #include "render/render_backend.h"
 
-#define AUDIO_FREQ 44100
+#define AUDIO_FREQ AICA_SAMPLE_FREQ
 #define VIDEO_WIDTH 640
 #define VIDEO_HEIGHT 480
 

src/host/sdl_host.c

@@ -7,6 +7,7 @@
 #include "core/ringbuf.h"
 #include "core/time.h"
 #include "emulator.h"
+#include "guest/aica/aica.h"
 #include "host/host.h"
 #include "imgui.h"
 #include "options.h"
@@ -17,7 +18,7 @@
 /*
  * sdl host implementation
  */
-#define AUDIO_FREQ 44100
+#define AUDIO_FREQ AICA_SAMPLE_FREQ
 #define VIDEO_DEFAULT_WIDTH 853
 #define VIDEO_DEFAULT_HEIGHT 480
 #define INPUT_MAX_CONTROLLERS 4
@@ -40,6 +41,7 @@ struct host {
   struct {
     SDL_AudioDeviceID dev;
     SDL_AudioSpec spec;
+    int playing;
     struct ringbuf *frames;
     volatile int64_t last_cb;
   } audio;
@@ -178,9 +180,6 @@ static int audio_create_device(struct host *host) {
            AUDIO_FRAMES_TO_MS(host->audio.spec.samples),
            host->audio.spec.samples);
 
-  /* resume device */
-  SDL_PauseAudioDevice(host->audio.dev, 0);
-
   return 1;
 }
 
@@ -196,6 +195,12 @@ void audio_push(struct host *host, const int16_t *data, int num_frames) {
   }
 
   audio_write_frames(host, data, num_frames);
+
+  /* start playback once some audio is queued */
+  if (!host->audio.playing) {
+    SDL_PauseAudioDevice(host->audio.dev, 0);
+    host->audio.playing = 1;
+  }
 }
 
 static void audio_shutdown(struct host *host) {

src/imgui.h

@@ -1,7 +1,6 @@
 #ifndef IMGUI_H
 #define IMGUI_H
 
-
 /* imgui extensions */
 #if HAVE_IMGUI
 

src/tracer.c

@@ -238,7 +238,7 @@ static void tracer_prev_context(struct tracer *tracer) {
 
   while (curr != prev) {
     if (curr->type == TRACE_CMD_TEXTURE) {
-      struct trace_cmd * override = curr->override;
+      struct trace_cmd *override = curr->override;
 
       if (override) {
         tracer_add_texture(tracer, override);

src/ui.c

@@ -394,11 +394,11 @@ static void ui_begin_page(struct ui *ui, struct page *page) {
   char title[128];
   int pagenum = (int)(page - pages);
   snprintf(title, sizeof(title), "ui%d", pagenum);
-  igBegin(title, NULL, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
-                           ImGuiWindowFlags_NoMove |
-                           ImGuiWindowFlags_NoScrollbar |
-                           ImGuiWindowFlags_NoNavFocus |
-                           ImGuiWindowFlags_NoBringToFrontOnFocus);
+  igBegin(title, NULL,
+          ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
+              ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoScrollbar |
+              ImGuiWindowFlags_NoNavFocus |
+              ImGuiWindowFlags_NoBringToFrontOnFocus);
 
   /* push back original padding immediately */
   igPushStyleVarVec(ImGuiStyleVar_WindowPadding, original_padding);
@@ -1232,9 +1232,9 @@ static void ui_games_build(struct ui *ui) {
     igSetNextWindowSize(size, 0);
     igSetNextWindowContentSize(content_size);
 
-    igBeginChild("games list", size, false, ImGuiWindowFlags_NoScrollbar |
-                                                ImGuiWindowFlags_NoNavScroll |
-                                                ImGuiWindowFlags_NavFlattened);
+    igBeginChild("games list", size, false,
+                 ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoNavScroll |
+                     ImGuiWindowFlags_NavFlattened);
 
     struct ImVec2 disc_pos = {list_padding, (size.y - disc_small) / 2.0f};
     igSetCursorPos(disc_pos);