Ungrab and fullscreen actions in SDL

src/input/sdlinput.c

@@ -20,11 +20,13 @@
 #ifdef HAVE_SDL
 
 #include "sdlinput.h"
+#include "../sdl.h"
 
 #include "limelight-common/Limelight.h"
 
-#define QUIT_MODIFIERS (MODIFIER_SHIFT|MODIFIER_ALT|MODIFIER_CTRL)
+#define ACTION_MODIFIERS (MODIFIER_SHIFT|MODIFIER_ALT|MODIFIER_CTRL)
 #define QUIT_KEY SDLK_q
+#define FULLSCREEN_KEY SDLK_f
 
 typedef struct _GAMEPAD_STATE {
   char leftTrigger, rightTrigger;
@@ -69,7 +71,7 @@ static PGAMEPAD_STATE get_gamepad(SDL_JoystickID sdl_id) {
   return &gamepads[0];
 }
 
-bool sdlinput_handle_event(SDL_Event* event) {
+int sdlinput_handle_event(SDL_Event* event) {
   int button = 0;
   PGAMEPAD_STATE gamepad;
   switch (event->type) {
@@ -96,7 +98,7 @@ bool sdlinput_handle_event(SDL_Event* event) {
     if (button != 0)
       LiSendMouseButtonEvent(event->type==SDL_MOUSEBUTTONDOWN?BUTTON_ACTION_PRESS:BUTTON_ACTION_RELEASE, button);
 
-    break;
+    return SDL_MOUSE_GRAB;
   case SDL_KEYDOWN:
   case SDL_KEYUP:
     button = event->key.keysym.sym;
@@ -129,8 +131,12 @@ bool sdlinput_handle_event(SDL_Event* event) {
     }
 
     // Quit the stream if all the required quit keys are down
-    if ((keyboard_modifiers & QUIT_MODIFIERS) == QUIT_MODIFIERS && event->key.keysym.sym == QUIT_KEY && event->type==SDL_KEYUP)
-      return false;
+    if ((keyboard_modifiers & ACTION_MODIFIERS) == ACTION_MODIFIERS && event->key.keysym.sym == QUIT_KEY && event->type==SDL_KEYUP)
+      return SDL_QUIT_APPLICATION;
+    else if ((keyboard_modifiers & ACTION_MODIFIERS) == ACTION_MODIFIERS && event->key.keysym.sym == FULLSCREEN_KEY && event->type==SDL_KEYUP)
+      return SDL_TOGGLE_FULLSCREEN;
+    else if ((keyboard_modifiers & ACTION_MODIFIERS) == ACTION_MODIFIERS)
+      return SDL_MOUSE_UNGRAB;
 
     LiSendKeyboardEvent(0x80 << 8 | button, event->type==SDL_KEYDOWN?KEY_ACTION_DOWN:KEY_ACTION_UP, keyboard_modifiers);
     break;
@@ -156,7 +162,7 @@ bool sdlinput_handle_event(SDL_Event* event) {
       gamepad->rightTrigger = (event->caxis.value >> 8) + 127;
       break;
     default:
-      return true;
+      return SDL_NOTHING;
     }
     LiSendMultiControllerEvent(gamepad->id, gamepad->buttons, gamepad->leftTrigger, gamepad->rightTrigger, gamepad->leftStickX, gamepad->leftStickY, gamepad->rightStickX, gamepad->rightStickY);
     break;
@@ -210,7 +216,7 @@ bool sdlinput_handle_event(SDL_Event* event) {
       button = RB_FLAG;
       break;
     default:
-      return true;
+      return SDL_NOTHING;
     }
     if (event->type == SDL_CONTROLLERBUTTONDOWN)
       gamepad->buttons |= button;
@@ -220,7 +226,7 @@ bool sdlinput_handle_event(SDL_Event* event) {
     LiSendMultiControllerEvent(gamepad->id, gamepad->buttons, gamepad->leftTrigger, gamepad->rightTrigger, gamepad->leftStickX, gamepad->leftStickY, gamepad->rightStickX, gamepad->rightStickY);
     break;
   }
-  return true;
+  return SDL_NOTHING;
 }
 
 #endif /* HAVE_SDL */

src/input/sdlinput.h

@@ -52,6 +52,6 @@ static const short keyCodes[] = {
 };
 
 void sdlinput_init();
-bool sdlinput_handle_event(SDL_Event* event);
+int sdlinput_handle_event(SDL_Event* event);
 
 #endif /* HAVE_SDL */

src/sdl.c

@@ -27,6 +27,7 @@
 #include <stdbool.h>
 
 static bool done;
+static int fullscreen_flags;
 
 SDL_Window *sdl_window;
 
@@ -41,19 +42,34 @@ void sdl_init(int width, int height) {
     fprintf(stderr, "SDL: could not create window - exiting\n");
     exit(1);
   }
-  SDL_ShowCursor(SDL_DISABLE);
-  //SDL_SetRelativeMouseMode(SDL_TRUE);
+  SDL_SetRelativeMouseMode(SDL_TRUE);
   sdlinput_init();
 }
 
 void sdl_loop() {
   SDL_Event event;
   while(!done && SDL_WaitEvent(&event)) {
-    if (!sdlinput_handle_event(&event))
-      done = true;
-    else if (event.type == SDL_QUIT)
+    switch (sdlinput_handle_event(&event)) {
+    case SDL_QUIT_APPLICATION:
       done = true;
+      break;
+    case SDL_TOGGLE_FULLSCREEN:
+      fullscreen_flags ^= SDL_WINDOW_FULLSCREEN;
+      SDL_SetWindowFullscreen(sdl_window, fullscreen_flags);
+    case SDL_MOUSE_GRAB:
+      SDL_SetRelativeMouseMode(SDL_TRUE);
+      break;
+    case SDL_MOUSE_UNGRAB:
+      SDL_SetRelativeMouseMode(SDL_FALSE);
+      break;
+    default:
+      if (event.type == SDL_QUIT)
+        done = true;
+    }
   }
+
+  SDL_DestroyWindow(sdl_window);
+  SDL_Quit();
 }
 
 #endif /* HAVE_SDL */

src/sdl.h

@@ -21,6 +21,12 @@
 
 #include <SDL.h>
 
+#define SDL_NOTHING 0
+#define SDL_QUIT_APPLICATION 1
+#define SDL_MOUSE_GRAB 2
+#define SDL_MOUSE_UNGRAB 3
+#define SDL_TOGGLE_FULLSCREEN 4
+
 SDL_Window *sdl_window;
 
 void sdl_init(int width, int height);