Add camera/location support for iOS

Add front camera support for Android
Allow to change the active camera in-game

CMakeLists.txt

@@ -745,6 +745,10 @@ elseif(IOS)
 		ios/ViewController.h
 		ios/iOSCoreAudio.mm
 		ios/iOSCoreAudio.h
+		ios/CameraHelper.mm
+		ios/CameraHelper.h
+		ios/LocationHelper.mm
+		ios/LocationHelper.h
 		ios/PPSSPPUIApplication.h
 		ios/PPSSPPUIApplication.mm
 		ios/SmartKeyboardMap.cpp
@@ -755,7 +759,7 @@ elseif(IOS)
 		ios/iCade/iCadeReaderView.m
 		ios/iCade/iCadeState.h
 	)
-	set(nativeExtraLibs ${nativeExtraLibs} "-framework Foundation -framework MediaPlayer -framework AudioToolbox -framework CoreGraphics -framework QuartzCore -framework UIKit -framework GLKit -framework OpenAL -framework AVFoundation")
+	set(nativeExtraLibs ${nativeExtraLibs} "-framework Foundation -framework MediaPlayer -framework AudioToolbox -framework CoreGraphics -framework QuartzCore -framework UIKit -framework GLKit -framework OpenAL -framework AVFoundation -framework CoreLocation -framework CoreVideo -framework CoreMedia" )
 	if(EXISTS "${CMAKE_IOS_SDK_ROOT}/System/Library/Frameworks/GameController.framework")
 		set(nativeExtraLibs ${nativeExtraLibs} "-weak_framework GameController")
 	endif()
@@ -770,7 +774,8 @@ elseif(IOS)
 	set_source_files_properties(ios/PPSSPPUIApplication.mm PROPERTIES COMPILE_FLAGS -fobjc-arc)
 	set_source_files_properties(ios/iCade/iCadeReaderView.m PROPERTIES COMPILE_FLAGS -fobjc-arc)
 	set_source_files_properties(ios/main.mm PROPERTIES COMPILE_FLAGS -fobjc-arc)
-
+	set_source_files_properties(ios/CameraHelper.mm PROPERTIES COMPILE_FLAGS -fobjc-arc)
+	set_source_files_properties(ios/LocationHelper.mm PROPERTIES COMPILE_FLAGS -fobjc-arc)
 
 	set(TargetBin PPSSPP)
 elseif(USING_QT_UI)

Core/Config.cpp

@@ -707,9 +707,7 @@ static ConfigSetting graphicsSettings[] = {
 #ifdef _WIN32
 	ConfigSetting("D3D11Device", &g_Config.sD3D11Device, "", true, false),
 #endif
-#if (defined(_WIN32) && !PPSSPP_PLATFORM(UWP)) || PPSSPP_PLATFORM(LINUX)
 	ConfigSetting("CameraDevice", &g_Config.sCameraDevice, "", true, false),
-#endif
 	ConfigSetting("VendorBugChecksEnabled", &g_Config.bVendorBugChecksEnabled, true, false, false),
 	ReportedConfigSetting("RenderingMode", &g_Config.iRenderingMode, 1, true, true),
 	ConfigSetting("SoftwareRenderer", &g_Config.bSoftwareRendering, false, true, true),

Core/HLE/sceKernel.cpp

@@ -169,6 +169,7 @@ void __KernelShutdown()
 	kernelObjects.Clear();
 
 	__UsbCamShutdown();
+	__UsbGpsShutdown();
 
 	__AudioCodecShutdown();
 	__VideoPmpShutdown();

Core/HLE/sceUsbCam.cpp

@@ -205,8 +205,18 @@ static int sceUsbCamSetupStillEx(u32 paramAddr) {
 	return 0;
 }
 
-static int sceUsbCamAutoImageReverseSW(int rev) {
+static int sceUsbCamAutoImageReverseSW(int on) {
-	INFO_LOG(HLE, "UNIMPL sceUsbCamAutoImageReverseSW");
+	INFO_LOG(HLE, "UNIMPL sceUsbCamAutoImageReverseSW: %d", on);
+	return 0;
+}
+
+static int sceUsbCamGetLensDirection() {
+	INFO_LOG(HLE, "UNIMPL sceUsbCamGetLensDirection");
+	return 0;
+}
+
+static int sceUsbCamSetReverseMode(int reverseflags) {
+	INFO_LOG(HLE, "UNIMPL sceUsbCamSetReverseMode %d", reverseflags);
 	return 0;
 }
 
@@ -244,7 +254,7 @@ const HLEFunction sceUsbCam[] =
 
 	{ 0XF93C4669, &WrapI_I<sceUsbCamAutoImageReverseSW>,      "sceUsbCamAutoImageReverseSW",             'i', "i" },
 	{ 0X11A1F128, nullptr,                                    "sceUsbCamGetAutoImageReverseState",       '?', "" },
-	{ 0X4C34F553, nullptr,                                    "sceUsbCamGetLensDirection",               '?', "" },
+	{ 0X4C34F553, &WrapI_V<sceUsbCamGetLensDirection>,        "sceUsbCamGetLensDirection",               'i', "" },
 
 	{ 0X383E9FA8, nullptr,                                    "sceUsbCamGetSaturation",                  '?', "" },
 	{ 0X6E205974, nullptr,                                    "sceUsbCamSetSaturation",                  '?', "" },
@@ -259,7 +269,7 @@ const HLEFunction sceUsbCam[] =
 	{ 0X2BCD50C0, nullptr,                                    "sceUsbCamGetEvLevel",                     '?', "" },
 	{ 0X1D686870, nullptr,                                    "sceUsbCamSetEvLevel",                     '?', "" },
 	{ 0XD5279339, nullptr,                                    "sceUsbCamGetReverseMode",                 '?', "" },
-	{ 0X951BEDF5, nullptr,                                    "sceUsbCamSetReverseMode",                 '?', "" },
+	{ 0X951BEDF5, &WrapI_I<sceUsbCamSetReverseMode>,          "sceUsbCamSetReverseMode",                 'i', "i" },
 	{ 0X9E8AAF8D, nullptr,                                    "sceUsbCamGetZoom",                        '?', "" },
 	{ 0XC484901F, nullptr,                                    "sceUsbCamSetZoom",                        '?', "" },
 	{ 0XAA7D94BA, nullptr,                                    "sceUsbCamGetAntiFlicker",                 '?', "" },
@@ -275,7 +285,9 @@ void Register_sceUsbCam()
 }
 
 std::vector<std::string> Camera::getDeviceList() {
-	#if PPSSPP_PLATFORM(LINUX) && !PPSSPP_PLATFORM(ANDROID)
+	#if PPSSPP_PLATFORM(ANDROID) || PPSSPP_PLATFORM(IOS)
+		return __cameraGetDeviceList();
+	#elif PPSSPP_PLATFORM(LINUX)
 		return __v4l_getDeviceList();
 	#elif defined(_WIN32) && !PPSSPP_PLATFORM(UWP)
 		if (winCamera) {
@@ -291,7 +303,7 @@ int Camera::startCapture() {
 	INFO_LOG(HLE, "%s resolution: %dx%d", __FUNCTION__, width, height);
 
 	config->mode = Camera::Mode::Video;
-	#if PPSSPP_PLATFORM(ANDROID)
+	#if PPSSPP_PLATFORM(ANDROID) || PPSSPP_PLATFORM(IOS)
 		System_SendMessage("camera_command", "startVideo");
 	#elif PPSSPP_PLATFORM(LINUX)
 		__v4l_startCapture(width, height);
@@ -312,7 +324,7 @@ int Camera::startCapture() {
 
 int Camera::stopCapture() {
 	INFO_LOG(HLE, "%s", __FUNCTION__);
-	#if PPSSPP_PLATFORM(ANDROID)
+	#if PPSSPP_PLATFORM(ANDROID) || PPSSPP_PLATFORM(IOS)
 		System_SendMessage("camera_command", "stopVideo");
 	#elif PPSSPP_PLATFORM(LINUX)
 		__v4l_stopCapture();
@@ -328,6 +340,13 @@ int Camera::stopCapture() {
 	return 0;
 }
 
+void Camera::onCameraDeviceChange() {
+	if (config != nullptr && config->mode == Camera::Mode::Video) {
+		stopCapture();
+		startCapture();
+	}
+}
+
 void Camera::pushCameraImage(long long length, unsigned char* image) {
 	std::lock_guard<std::mutex> lock(videoBufferMutex);
 	if (!videoBuffer) {

Core/HLE/sceUsbCam.h

@@ -117,6 +117,7 @@ namespace Camera {
 	} Config;
 
 	std::vector<std::string> getDeviceList();
+	void onCameraDeviceChange();
 	int startCapture();
 	int stopCapture();
 	void pushCameraImage(long long length, unsigned char *image);

Core/HLE/sceUsbGps.cpp

@@ -43,6 +43,15 @@ void __UsbGpsDoState(PointerWrap &p) {
 	p.Do(gpsStatus);
 }
 
+void __UsbGpsShutdown() {
+    gpsStatus = GPS_STATE_OFF;
+    System_SendMessage("gps_command", "close");
+};
+
+static int sceUsbGpsGetInitDataLocation(u32 addr) {
+    return 0;
+}
+
 static int sceUsbGpsGetState(u32 stateAddr) {
 	if (Memory::IsValidAddress(stateAddr)) {
 		Memory::Write_U32(gpsStatus, stateAddr);
@@ -79,7 +88,7 @@ const HLEFunction sceUsbGps[] =
 {
 	{0X268F95CA, nullptr,                                 "sceUsbGpsSetInitDataLocation",  '?', "" },
 	{0X31F95CDE, nullptr,                                 "sceUsbGpsGetPowerSaveMode",     '?', "" },
-	{0X54D26AA4, nullptr,                            "sceUsbGpsGetInitDataLocation",  '?', "" },
+	{0X54D26AA4, &WrapI_U<sceUsbGpsGetInitDataLocation>,  "sceUsbGpsGetInitDataLocation",  'i', "x" },
 	{0X63D1F89D, nullptr,                                 "sceUsbGpsResetInitialPosition", '?', "" },
 	{0X69E4AAA8, nullptr,                                 "sceUsbGpsSaveInitData",         '?', "" },
 	{0X6EED4811, &WrapI_V<sceUsbGpsClose>,                "sceUsbGpsClose",                'i', "" },

Core/HLE/sceUsbGps.h

@@ -21,6 +21,7 @@ void Register_sceUsbGps();
 
 void __UsbGpsInit();
 void __UsbGpsDoState(PointerWrap &p);
+void __UsbGpsShutdown();
 
 #pragma pack(push, 1)
 

Core/HW/Camera.cpp

@@ -192,9 +192,10 @@ int __v4l_startCapture(int ideal_width, int ideal_height) {
 		frmsize.index++;
 		if (frmsize.type == V4L2_FRMSIZE_TYPE_DISCRETE) {
 			INFO_LOG(HLE, "V4L2: frame size supported: %dx%d", frmsize.discrete.width, frmsize.discrete.height);
-			if (fmt.fmt.pix.width != 0 && fmt.fmt.pix.height != 0) {
+			if (frmsize.discrete.width >= ideal_width && frmsize.discrete.height >= ideal_height
-				continue;
+					&& fmt.fmt.pix.width == 0 && fmt.fmt.pix.height == 0
-			} else if (frmsize.discrete.width >= ideal_width && frmsize.discrete.height >= ideal_height) {
+			 || frmsize.discrete.width >= ideal_width && frmsize.discrete.height >= ideal_height
+					&& frmsize.discrete.width < fmt.fmt.pix.width && frmsize.discrete.height < fmt.fmt.pix.height) {
 				fmt.fmt.pix.width  = frmsize.discrete.width;
 				fmt.fmt.pix.height = frmsize.discrete.height;
 			}

UI/GameSettingsScreen.cpp

@@ -263,13 +263,12 @@ void GameSettingsScreen::CreateViews() {
 			softwareGPU->SetEnabled(false);
 	}
 
-#if (defined(_WIN32) && !PPSSPP_PLATFORM(UWP)) || PPSSPP_PLATFORM(LINUX)
 	std::vector<std::string> cameraList = Camera::getDeviceList();
 	if (cameraList.size() >= 1) {
 		graphicsSettings->Add(new ItemHeader(gr->T("Camera")));
 		PopupMultiChoiceDynamic *cameraChoice = graphicsSettings->Add(new PopupMultiChoiceDynamic(&g_Config.sCameraDevice, gr->T("Camera Device"), cameraList, nullptr, screenManager()));
+		cameraChoice->OnChoice.Handle(this, &GameSettingsScreen::OnCameraDeviceChange);
 	}
-#endif
 
 	graphicsSettings->Add(new ItemHeader(gr->T("Frame Rate Control")));
 	static const char *frameSkip[] = {"Off", "1", "2", "3", "4", "5", "6", "7", "8"};
@@ -1200,6 +1199,11 @@ UI::EventReturn GameSettingsScreen::OnRenderingDevice(UI::EventParams &e) {
 	return UI::EVENT_DONE;
 }
 
+UI::EventReturn GameSettingsScreen::OnCameraDeviceChange(UI::EventParams& e) {
+	Camera::onCameraDeviceChange();
+	return UI::EVENT_DONE;
+}
+
 UI::EventReturn GameSettingsScreen::OnAudioDevice(UI::EventParams &e) {
 	I18NCategory *a = GetI18NCategory("Audio");
 	if (g_Config.sAudioDevice == a->T("Auto")) {

UI/GameSettingsScreen.h

@@ -97,6 +97,7 @@ private:
 	UI::EventReturn OnRenderingMode(UI::EventParams &e);
 	UI::EventReturn OnRenderingBackend(UI::EventParams &e);
 	UI::EventReturn OnRenderingDevice(UI::EventParams &e);
+	UI::EventReturn OnCameraDeviceChange(UI::EventParams& e);
 	UI::EventReturn OnAudioDevice(UI::EventParams &e);
 	UI::EventReturn OnJitAffectingSetting(UI::EventParams &e);
 #if PPSSPP_PLATFORM(ANDROID)

UI/NativeApp.cpp

@@ -1358,7 +1358,7 @@ void NativeShutdown() {
 	// I think we handle most globals correctly or correct-enough now.
 }
 
-void PushNewGpsData(float latitude, float longitude, float altitude, float speed, float bearing, long long time) {
+void SetGpsData(float latitude, float longitude, float altitude, float speed, float bearing, long long time) {
 	GPS::setGpsData(latitude, longitude, altitude, speed, bearing, time);
 }
 

android/jni/app-android.cpp

@@ -921,12 +921,40 @@ extern "C" jint JNICALL Java_org_ppsspp_ppsspp_NativeApp_getDesiredBackbufferHei
 	return desiredBackbufferSizeY;
 }
 
-extern "C" void JNICALL Java_org_ppsspp_ppsspp_NativeApp_pushNewGpsData(JNIEnv *, jclass,
+
-		jfloat latitude, jfloat longitude, jfloat altitude, jfloat speed, jfloat bearing, jlong time) {
+std::vector<std::string> __cameraGetDeviceList() {
-	PushNewGpsData(latitude, longitude, altitude, speed, bearing, time);
+	jclass cameraClass = findClass("org/ppsspp/ppsspp/CameraHelper");
+	jmethodID deviceListMethod = getEnv()->GetStaticMethodID(cameraClass, "getDeviceList", "()Ljava/util/ArrayList;");
+	jobject deviceListObject = getEnv()->CallStaticObjectMethod(cameraClass, deviceListMethod);
+	jclass arrayListClass = getEnv()->FindClass("java/util/ArrayList");
+	jmethodID arrayListSize = getEnv()->GetMethodID(arrayListClass, "size", "()I");
+	jmethodID arrayListGet = getEnv()->GetMethodID(arrayListClass, "get", "(I)Ljava/lang/Object;");
+
+	jint arrayListObjectLen = getEnv()->CallIntMethod(deviceListObject, arrayListSize);
+	std::vector<std::string> deviceListVector;
+
+	for (int i=0; i < arrayListObjectLen; i++) {
+		jstring dev = static_cast<jstring>(getEnv()->CallObjectMethod(deviceListObject, arrayListGet, i));
+		const char* cdev = getEnv()->GetStringUTFChars(dev, nullptr);
+		deviceListVector.push_back(cdev);
+		getEnv()->ReleaseStringUTFChars(dev, cdev);
+		getEnv()->DeleteLocalRef(dev);
+	}
+	return deviceListVector;
 }
 
-extern "C" void JNICALL Java_org_ppsspp_ppsspp_NativeApp_pushCameraImage(JNIEnv *env, jclass,
+extern "C" jint Java_org_ppsspp_ppsspp_NativeApp_getSelectedCamera(JNIEnv *, jclass) {
+	int cameraId = 0;
+	sscanf(g_Config.sCameraDevice.c_str(), "%d:", &cameraId);
+	return cameraId;
+}
+
+extern "C" void JNICALL Java_org_ppsspp_ppsspp_NativeApp_setGpsDataAndroid(JNIEnv *, jclass,
+		jfloat latitude, jfloat longitude, jfloat altitude, jfloat speed, jfloat bearing, jlong time) {
+	SetGpsData(latitude, longitude, altitude, speed, bearing, time);
+}
+
+extern "C" void JNICALL Java_org_ppsspp_ppsspp_NativeApp_pushCameraImageAndroid(JNIEnv *env, jclass,
 		jbyteArray image) {
 
 	if (image != NULL) {

android/src/org/ppsspp/ppsspp/CameraHelper.java

@@ -15,6 +15,7 @@ import android.view.WindowManager;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.List;
 
 @TargetApi(23)
@@ -24,6 +25,7 @@ class CameraHelper {
 	private Display mDisplay;
 	private Camera mCamera = null;
 	private boolean mIsCameraRunning = false;
+	private int mCameraFacing = 0;
 	private int mCameraOrientation = 0;
 	private Camera.Size mPreviewSize = null;
 	private long mLastFrameTime = 0;
@@ -38,8 +40,12 @@ class CameraHelper {
 			case Surface.ROTATION_180: displayDegrees = 180; break;
 			case Surface.ROTATION_270: displayDegrees = 270; break;
 		}
+		if (mCameraFacing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
+			return (mCameraOrientation + displayDegrees) % 360;
+		} else {
 			return (mCameraOrientation - displayDegrees + 360) % 360;
 		}
+	}
 
 	static byte[] rotateNV21(final byte[] input, final int inWidth, final int inHeight,
 							 final int outWidth, final int outHeight, final int rotation) {
@@ -117,7 +123,7 @@ class CameraHelper {
 			// convert to Jpeg
 			Rect crop = new Rect(0, 0, targetW, targetH);
 			yuvImage.compressToJpeg(crop, 80, baos);
-			NativeApp.pushCameraImage(baos.toByteArray());
+			NativeApp.pushCameraImageAndroid(baos.toByteArray());
 			try {
 				baos.close();
 			} catch (IOException e) {
@@ -132,14 +138,29 @@ class CameraHelper {
 		mSurfaceTexture = new SurfaceTexture(10);
 	}
 
+	static ArrayList<String> getDeviceList() {
+		ArrayList<String> deviceList = new ArrayList<>();
+		int nrCam = Camera.getNumberOfCameras();
+		for (int index = 0; index < nrCam; index++) {
+			Camera.CameraInfo info = new Camera.CameraInfo();
+			Camera.getCameraInfo(index, info);
+			String devName = index + ":" + (info.facing == Camera.CameraInfo.CAMERA_FACING_BACK ? "Back Camera" : "Front Camera");
+			deviceList.add(devName);
+		}
+		return deviceList;
+	}
+
 	void startCamera() {
-		Log.d(TAG, "startCamera");
 		try {
-			Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
+			int cameraId = NativeApp.getSelectedCamera();
-			Camera.getCameraInfo(0, info);
+			Log.d(TAG, "startCamera: " + cameraId);
+
+			Camera.CameraInfo info = new Camera.CameraInfo();
+			Camera.getCameraInfo(cameraId, info);
+			mCameraFacing = info.facing;
 			mCameraOrientation = info.orientation;
 
-			mCamera = Camera.open();
+			mCamera = Camera.open(cameraId);
 			Camera.Parameters param = mCamera.getParameters();
 
 			// Set preview size

android/src/org/ppsspp/ppsspp/LocationHelper.java

@@ -50,12 +50,13 @@ class LocationHelper implements LocationListener {
 	public void onLocationChanged(Location location) {
 		float latitude = (float) location.getLatitude();
 		float longitude = (float) location.getLongitude();
+		// Android altitude is in meters above the WGS 84 reference ellipsoid
 		float altitude = (float) location.getAltitude();
 		float speed = location.getSpeed();
 		float bearing = location.getBearing();
 		long time = location.getTime() / 1000; // ms to s !!
 
-		NativeApp.pushNewGpsData(latitude, longitude, altitude, speed, bearing, time);
+		NativeApp.setGpsDataAndroid(latitude, longitude, altitude, speed, bearing, time);
 	}
 
 	@Override

android/src/org/ppsspp/ppsspp/NativeApp.java

@@ -51,7 +51,7 @@ public class NativeApp {
 
 	public static native String queryConfig(String queryName);
 
-	public static native void pushNewGpsData(float latitude, float longitude, float altitude, float speed, float bearing, long time);
+	public static native int getSelectedCamera();
-
+	public static native void setGpsDataAndroid(float latitude, float longitude, float altitude, float speed, float bearing, long time);
-	public static native void pushCameraImage(byte[] image);
+	public static native void pushCameraImageAndroid(byte[] image);
 }

ext/native/base/NativeApp.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <string>
+#include <vector>
 
 // The Native App API.
 //
@@ -174,5 +175,6 @@ std::string System_GetProperty(SystemProperty prop);
 int System_GetPropertyInt(SystemProperty prop);
 bool System_GetPropertyBool(SystemProperty prop);
 
-void PushNewGpsData(float latitude, float longitude, float altitude, float speed, float bearing, long long time);
+std::vector<std::string> __cameraGetDeviceList();
+void SetGpsData(float latitude, float longitude, float altitude, float speed, float bearing, long long time);
 void PushCameraImage(long long length, unsigned char* image);

ios/CameraHelper.h

@@ -0,0 +1,17 @@
+#import <Foundation/Foundation.h>
+#import <AVFoundation/AVFoundation.h>
+
+@protocol CameraFrameDelegate <NSObject>
+@required
+- (void) PushCameraImageIOS:(long long)len buffer:(unsigned char*)data;
+@end
+
+@interface CameraHelper : NSObject<AVCaptureVideoDataOutputSampleBufferDelegate>
+
+@property (nonatomic, strong) id<CameraFrameDelegate> delegate;
+
+- (int) checkPermission;
+- (void) startVideo;
+- (void) stopVideo;
+
+@end

ios/CameraHelper.mm

@@ -0,0 +1,144 @@
+#include <vector>
+#include <string>
+#include "Core/Config.h"
+#import "CameraHelper.h"
+#import <UIKit/UIKit.h>
+
+@interface CameraHelper() {
+    AVCaptureSession *captureSession;
+    AVCaptureVideoPreviewLayer *previewLayer;
+}
+@end
+
+@implementation CameraHelper
+
+std::vector<std::string> __cameraGetDeviceList() {
+    std::vector<std::string> deviceList;
+    for (AVCaptureDevice *device in [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]) {
+        deviceList.push_back([device.localizedName UTF8String]);
+    }
+    return deviceList;
+}
+
+NSString *getSelectedCamera() {
+    NSString *selectedCamera = [NSString stringWithCString:g_Config.sCameraDevice.c_str() encoding:[NSString defaultCStringEncoding]];
+    return selectedCamera;
+}
+
+-(int) checkPermission {
+    AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
+    NSLog(@"CameraHelper::checkPermission %ld", (long)status);
+
+    switch (status) {
+        case AVAuthorizationStatusNotDetermined: {
+            [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
+                if (granted) {
+                    NSLog(@"camera permission granted");
+                    dispatch_async(dispatch_get_main_queue(), ^{
+                        [self startVideo];
+                    });
+                } else {
+                    NSLog(@"camera permission denied");
+                }
+            }];
+            return 1;
+        }
+        case AVAuthorizationStatusRestricted:
+        case AVAuthorizationStatusDenied: {
+            NSLog(@"camera permission denied");
+            return 1;
+        }
+        case AVAuthorizationStatusAuthorized: {
+            return 0;
+        }
+    }
+}
+
+-(void) startVideo {
+    NSLog(@"CameraHelper::startVideo");
+    if ([self checkPermission]) {
+        return;
+    }
+
+    dispatch_async(dispatch_get_main_queue(), ^{
+        NSError *error = nil;
+
+        captureSession = [[AVCaptureSession alloc] init];
+        captureSession.sessionPreset = AVCaptureSessionPresetMedium;
+
+        AVCaptureDeviceInput *videoInput = nil;
+        NSString *selectedCamera = getSelectedCamera();
+        for (AVCaptureDevice *device in [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]) {
+            if ([device.localizedName isEqualToString:selectedCamera]) {
+                videoInput = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];
+            }
+        }
+        if (videoInput == nil || error) {
+            NSLog(@"selectedCamera error; try default device");
+
+            AVCaptureDevice *videoDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
+            if (videoDevice == nil) {
+                NSLog(@"videoDevice error");
+                return;
+            }
+            videoInput = [AVCaptureDeviceInput deviceInputWithDevice:videoDevice error:&error];
+            if (videoInput == nil) {
+                NSLog(@"videoInput error");
+                return;
+            }
+        }
+        [captureSession addInput:videoInput];
+
+        AVCaptureVideoDataOutput *videoOutput = [[AVCaptureVideoDataOutput alloc] init];
+        videoOutput.videoSettings = [NSDictionary dictionaryWithObject: [NSNumber numberWithInt:kCVPixelFormatType_32BGRA] forKey: (id)kCVPixelBufferPixelFormatTypeKey];
+
+        [captureSession addOutput:videoOutput];
+
+        dispatch_queue_t queue = dispatch_queue_create("cameraQueue", NULL);
+        [videoOutput setSampleBufferDelegate:self queue:queue];
+
+        previewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:captureSession];
+        previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
+
+        [previewLayer setFrame:CGRectMake(0, 0, 480, 272)];
+
+        [captureSession startRunning];
+    });
+}
+
+-(void) stopVideo {
+    dispatch_async(dispatch_get_main_queue(), ^{
+        [captureSession stopRunning];
+    });
+}
+
+- (void) captureOutput:(AVCaptureOutput *)captureOutput
+         didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
+         fromConnection:(AVCaptureConnection *)connection {
+    CGImageRef cgImage = [self imageFromSampleBuffer:sampleBuffer];
+    UIImage *theImage = [UIImage imageWithCGImage: cgImage];
+    CGImageRelease(cgImage);
+    NSData *imageData = UIImageJPEGRepresentation(theImage, 0.6);
+
+    [self.delegate PushCameraImageIOS:imageData.length buffer:(unsigned char*)imageData.bytes];
+}
+
+- (CGImageRef) imageFromSampleBuffer:(CMSampleBufferRef) sampleBuffer {
+    CVImageBufferRef imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
+    CVPixelBufferLockBaseAddress(imageBuffer,0);
+    void* baseAddress = CVPixelBufferGetBaseAddressOfPlane(imageBuffer, 0);
+    size_t bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer);
+    size_t width = CVPixelBufferGetWidth(imageBuffer);
+    size_t height = CVPixelBufferGetHeight(imageBuffer);
+    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
+
+    CGContextRef newContext = CGBitmapContextCreate(baseAddress, width, height, 8, bytesPerRow, colorSpace, kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst);
+    CGImageRef newImage = CGBitmapContextCreateImage(newContext);
+    CGContextRelease(newContext);
+
+    CGColorSpaceRelease(colorSpace);
+    CVPixelBufferUnlockBaseAddress(imageBuffer,0);
+    return newImage;
+}
+
+@end

ios/LocationHelper.h

@@ -0,0 +1,18 @@
+#import <Foundation/Foundation.h>
+#import <CoreLocation/CoreLocation.h>
+
+@protocol LocationHandlerDelegate <NSObject>
+@required
+- (void) SetGpsDataIOS:(CLLocation*)newLocation;
+@end
+
+@interface LocationHelper : NSObject<CLLocationManagerDelegate> {
+    CLLocationManager *locationManager;
+}
+
+@property(nonatomic,strong) id<LocationHandlerDelegate> delegate;
+
+- (void) startLocationUpdates;
+- (void) stopLocationUpdates;
+
+@end

ios/LocationHelper.mm

@@ -0,0 +1,34 @@
+#import "LocationHelper.h"
+
+@interface LocationHelper()
+@end
+
+@implementation LocationHelper
+
+-(id) init {
+    NSLog(@"LocationHelper::init");
+    locationManager = [[CLLocationManager alloc] init];
+    [locationManager setDelegate:self];
+    return self;
+}
+
+-(void) startLocationUpdates {
+    NSLog(@"LocationHelper::startLocationUpdates");
+    if ([locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
+        [locationManager requestWhenInUseAuthorization];
+    }
+    [locationManager startUpdatingLocation];
+}
+
+-(void) stopLocationUpdates {
+    NSLog(@"LocationHelper::stopLocationUpdates");
+    [locationManager stopUpdatingLocation];
+}
+
+- (void) locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations {
+    for (id location in locations) {
+        [self.delegate SetGpsDataIOS:location];
+    }
+}
+
+@end

ios/PPSSPP-Info.plist

@@ -4,6 +4,12 @@
 <dict>
 	<key>UISupportsDocumentBrowser</key>
 	<true/>
+	<key>NSLocationWhenInUseUsageDescription</key>
+	<string>Your location may be used to emulate Go!Explore, a GPS accessory</string>
+	<key>NSCameraUsageDescription</key>
+	<string>Your camera may be used to emulate Go!Cam, a camera accessory</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>Your microphone may be used to emulate Go!Cam/Talkman, a microphone accessory</string>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
 	<key>CFBundleDisplayName</key>

ios/ViewController.h

@@ -6,11 +6,18 @@
 #import <GameController/GameController.h>
 #endif
 #import "iCade/iCadeReaderView.h"
+#import "CameraHelper.h"
+#import "LocationHelper.h"
 
-@interface ViewController : GLKViewController <iCadeEventDelegate>
+@interface ViewController : GLKViewController <iCadeEventDelegate,
+            LocationHandlerDelegate, CameraFrameDelegate>
 
 - (void)shutdown;
 
 @end
 
 extern __unsafe_unretained ViewController* sharedViewController;
+void startVideo();
+void stopVideo();
+void startLocation();
+void stopLocation();

ios/ViewController.mm

@@ -84,6 +84,8 @@ static bool threadStopped = false;
 
 __unsafe_unretained ViewController* sharedViewController;
 static GraphicsContext *graphicsContext;
+static CameraHelper *cameraHelper;
+static LocationHelper *locationHelper;
 
 @interface ViewController () {
 	std::map<uint16_t, uint16_t> iCadeToKeyMap;
@@ -203,6 +205,12 @@ static GraphicsContext *graphicsContext;
 	[self.view addSubview:volume];
 	[self.view bringSubviewToFront:volume];
 
+	cameraHelper = [[CameraHelper alloc] init];
+	[cameraHelper setDelegate:self];
+
+	locationHelper = [[LocationHelper alloc] init];
+	[locationHelper setDelegate:self];
+	
 	dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{
 		NativeInitGraphics(graphicsContext);
 
@@ -667,6 +675,33 @@ static GraphicsContext *graphicsContext;
 }
 #endif
 
+void startVideo() {
+    [cameraHelper startVideo];
+}
+
+void stopVideo() {
+    [cameraHelper stopVideo];
+}
+
+-(void) PushCameraImageIOS:(long long)len buffer:(unsigned char*)data {
+    PushCameraImage(len, data);
+}
+
+void startLocation() {
+    [locationHelper startLocationUpdates];
+}
+
+void stopLocation() {
+    [locationHelper stopLocationUpdates];
+}
+
+-(void) SetGpsDataIOS:(CLLocation *)newLocation {
+    NSLog(@"SetGpsDataIOS: speed: %f", newLocation.speed); // m/s
+    SetGpsData(newLocation.coordinate.latitude, newLocation.coordinate.longitude,
+                   newLocation.altitude, 0 /* speed */, 0 /* bearing */,
+                   (long long)newLocation.timestamp.timeIntervalSince1970);
+}
+
 @end
 
 void OpenDirectory(const char *path) {

ios/main.mm

@@ -112,6 +112,18 @@ void System_SendMessage(const char *command, const char *parameter) {
 		// [sharedViewController shutdown];
 		//	exit(0);
 		// });
+	} else if (!strcmp(command, "camera_command")) {
+		if (!strcmp(parameter, "startVideo")) {
+			startVideo();
+		} else if (!strcmp(parameter, "stopVideo")) {
+			stopVideo();
+		}
+	} else if (!strcmp(command, "gps_command")) {
+		if (!strcmp(parameter, "open")) {
+			startLocation();
+		} else if (!strcmp(parameter, "close")) {
+			stopLocation();
+		}
 	}
 }