Android: Save screenshot at end of an emulation session.

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/NativeLibrary.java

@@ -274,6 +274,12 @@ public final class NativeLibrary
 		});
 	}
 
+	public static void endEmulationActivity()
+	{
+		Log.v("DolphinEmu", "Ending EmulationActivity.");
+		mEmulationActivity.finish();
+	}
+
 	public static void setEmulationActivity(EmulationActivity emulationActivity)
 	{
 		Log.v("DolphinEmu", "Registering EmulationActivity.");

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/activities/EmulationActivity.java

@@ -150,7 +150,11 @@ public final class EmulationActivity extends AppCompatActivity
 		else
 		{
 			// Let the system handle it; i.e. quit the activity TODO or show "are you sure?" dialog.
-			super.onBackPressed();
+			EmulationFragment fragment = (EmulationFragment) getFragmentManager()
+					.findFragmentByTag(EmulationFragment.FRAGMENT_TAG);
+			fragment.notifyEmulationStopped();
+
+			NativeLibrary.StopEmulation();
 		}
 	}
 

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/activities/MainActivity.java

@@ -127,6 +127,13 @@ public final class MainActivity extends AppCompatActivity implements LoaderManag
 		}
 	}
 
+	@Override
+	protected void onResume()
+	{
+		super.onResume();
+		mAdapter.notifyDataSetChanged();
+	}
+
 	@Override
 	public boolean onCreateOptionsMenu(Menu menu)
 	{

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/fragments/EmulationFragment.java

@@ -119,7 +119,7 @@ public final class EmulationFragment extends Fragment implements SurfaceHolder.C
 	public void onDestroyView()
 	{
 		super.onDestroyView();
-		if (getActivity().isFinishing())
+		if (getActivity().isFinishing() && mEmulationStarted)
 		{
 			NativeLibrary.StopEmulation();
 		}
@@ -195,6 +195,16 @@ public final class EmulationFragment extends Fragment implements SurfaceHolder.C
 		mEmulationRunning = false;
 	}
 
+	/**
+	 * Called by containing activity to tell the Fragment emulation is already stopping,
+	 * so it doesn't try to stop emulation on its way to the garbage collector.
+	 */
+	public void notifyEmulationStopped()
+	{
+		mEmulationStarted = false;
+		mEmulationRunning = false;
+	}
+
 	private Runnable mEmulationRunner = new Runnable()
 	{
 		@Override

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/model/Game.java

@@ -113,21 +113,7 @@ public final class Game
 	{
 		ContentValues values = new ContentValues();
 
-		// TODO Come up with a way of finding the most recent screenshot that doesn't involve counting files
-		String screenshotFolderPath = PATH_SCREENSHOT_FOLDER + gameId + "/";
-
-		// Count how many screenshots are available, so we can use the most recent one.
-		File screenshotFolder = new File(screenshotFolderPath.substring(screenshotFolderPath.indexOf('s') - 1));
-		int screenCount = 0;
-
-		if (screenshotFolder.isDirectory())
-		{
-			screenCount = screenshotFolder.list().length;
-		}
-
-		String screenPath = screenshotFolderPath
-				+ gameId + "-"
-				+ screenCount + ".png";
+		String screenPath = PATH_SCREENSHOT_FOLDER + gameId + "/thumb.png";
 
 		values.put(GameDatabase.KEY_GAME_PLATFORM, platform);
 		values.put(GameDatabase.KEY_GAME_TITLE, title);

Source/Core/Core/Core.cpp

@@ -671,6 +671,22 @@ void SaveScreenShot()
 		SetState(CORE_RUN);
 }
 
+void SaveScreenShot(std::string name)
+{
+	const bool bPaused = (GetState() == CORE_PAUSE);
+
+	SetState(CORE_PAUSE);
+
+	const std::string& gameId = SConfig::GetInstance().GetUniqueID();
+    std::string path = File::GetUserPath(D_SCREENSHOTS_IDX) + gameId + DIR_SEP_CHR;
+
+	name = StringFromFormat("%s%s.png", path.c_str(), name.c_str());
+	g_video_backend->Video_Screenshot(name);
+
+	if (!bPaused)
+	 	SetState(CORE_RUN);
+}
+
 void RequestRefreshInfo()
 {
 	s_request_refresh_info = true;

Source/Core/Core/Core.h

@@ -52,6 +52,7 @@ void SetState(EState _State);
 EState GetState();
 
 void SaveScreenShot();
+void SaveScreenShot(std::string name);
 
 void Callback_WiimoteInterruptChannel(int _number, u16 _channelID, const void* _pData, u32 _Size);
 

Source/Core/DolphinWX/MainAndroid.cpp

@@ -31,6 +31,7 @@
 #include "UICommon/UICommon.h"
 
 #include "VideoCommon/OnScreenDisplay.h"
+#include "VideoCommon/RenderBase.h"
 #include "VideoCommon/VideoBackendBase.h"
 
 ANativeWindow* surf;
@@ -40,6 +41,7 @@ std::string g_set_userpath = "";
 JavaVM* g_java_vm;
 jclass g_jni_class;
 jmethodID g_jni_method_alert;
+jmethodID g_jni_method_end;
 
 #define DOLPHIN_TAG "DolphinEmuNative"
 
@@ -394,6 +396,8 @@ JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_PauseEmulati
 
 JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_StopEmulation(JNIEnv *env, jobject obj)
 {
+	Core::SaveScreenShot("thumb");
+	Renderer::s_screenshotCompleted.Wait();
 	Core::Stop();
 	updateMainFrameEvent.Set(); // Kick the waiting event
 }
@@ -591,6 +595,7 @@ JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_CacheClasses
 
 	// Method signature taken from javap -s Source/Android/app/build/intermediates/classes/arm/debug/org/dolphinemu/dolphinemu/NativeLibrary.class
 	g_jni_method_alert = env->GetStaticMethodID(g_jni_class, "displayAlertMsg", "(Ljava/lang/String;)V");
+	g_jni_method_end = env->GetStaticMethodID(g_jni_class, "endEmulationActivity", "()V");
 }
 
 JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_Run(JNIEnv *env, jobject obj, jobject _surf)
@@ -624,6 +629,9 @@ JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_Run(JNIEnv *
 
 	UICommon::Shutdown();
 	ANativeWindow_release(surf);
+
+	// Execute the Java method.
+	env->CallStaticVoidMethod(g_jni_class, g_jni_method_end);
 }
 
 

Source/Core/VideoBackends/OGL/Render.cpp

@@ -1510,6 +1510,7 @@ void Renderer::SwapImpl(u32 xfbAddr, u32 fbWidth, u32 fbStride, u32 fbHeight, co
 		// Reset settings
 		s_sScreenshotName.clear();
 		s_bScreenshot = false;
+		s_screenshotCompleted.Set();
 	}
 
 	// Frame dumps are handled a little differently in Windows

Source/Core/VideoCommon/RenderBase.cpp

@@ -17,6 +17,7 @@
 #include <string>
 
 #include "Common/Atomic.h"
+#include "Common/Event.h"
 #include "Common/Profiler.h"
 #include "Common/StringUtil.h"
 #include "Common/Timer.h"
@@ -53,6 +54,8 @@ Renderer *g_renderer = nullptr;
 std::mutex Renderer::s_criticalScreenshot;
 std::string Renderer::s_sScreenshotName;
 
+Common::Event Renderer::s_screenshotCompleted;
+
 volatile bool Renderer::s_bScreenshot;
 
 // The framebuffer size

Source/Core/VideoCommon/RenderBase.h

@@ -17,6 +17,7 @@
 #include <mutex>
 #include <string>
 
+#include "Common/Event.h"
 #include "Common/MathUtil.h"
 #include "Common/Thread.h"
 #include "VideoCommon/BPMemory.h"
@@ -133,6 +134,8 @@ public:
 	// Max height/width
 	virtual int GetMaxTextureSize() = 0;
 
+	static Common::Event s_screenshotCompleted;
+
 protected:
 
 	static void CalculateTargetScale(int x, int y, int* scaledX, int* scaledY);