Added support for deleting the obtained emulator screen.

src/retro-c.cpp

@@ -73,6 +73,11 @@ CEmulatorScreen* emulatorGetScreen(CEmulator* emulator) {
   return new CEmulatorScreen {data, (size_t) w, (size_t) h, 3};
 }
 
+void emulatorScreenDelete(CEmulatorScreen* screen) {
+  delete screen->values;
+  delete screen;
+}
+
 double emulatorGetScreenRate(CEmulator* emulator) {
   return static_cast<Emulator*>(emulator->emulator)->getFrameRate();
 }

src/retro-c.h

@@ -117,6 +117,7 @@ void emulatorStep(CEmulator* emulator);
 CBytes* emulatorGetState(CEmulator* emulator);
 bool emulatorSetState(CEmulator* emulator, CBytes* state);
 CEmulatorScreen* emulatorGetScreen(CEmulator* emulator);
+void emulatorScreenDelete(CEmulatorScreen* screen);
 double emulatorGetScreenRate(CEmulator* emulator);
 CEmulatorAudio* emulatorGetAudio(CEmulator* emulator);
 double emulatorGetAudioRate(CEmulator* emulator);