Fix compilation warnings in macOS build, enable `warnings=extra werro…

…r=yes` for macOS CI.

.travis.yml

@@ -74,7 +74,7 @@ matrix:
 
     - name: macOS editor (debug, Clang)
       stage: build
-      env: PLATFORM=osx TOOLS=yes TARGET=debug CACHE_NAME=${PLATFORM}-tools-clang
+      env: PLATFORM=osx TOOLS=yes TARGET=debug CACHE_NAME=${PLATFORM}-tools-clang EXTRA_ARGS="warnings=extra werror=yes"
       os: osx
       compiler: clang
 

drivers/coreaudio/audio_driver_coreaudio.cpp

@@ -186,15 +186,15 @@ OSStatus AudioDriverCoreAudio::output_callback(void *inRefCon,
 	for (unsigned int i = 0; i < ioData->mNumberBuffers; i++) {
 
 		AudioBuffer *abuf = &ioData->mBuffers[i];
-		int frames_left = inNumberFrames;
+		unsigned int frames_left = inNumberFrames;
 		int16_t *out = (int16_t *)abuf->mData;
 
 		while (frames_left) {
 
-			int frames = MIN(frames_left, ad->buffer_frames);
+			unsigned int frames = MIN(frames_left, ad->buffer_frames);
 			ad->audio_server_process(frames, ad->samples_in.ptrw());
 
-			for (int j = 0; j < frames * ad->channels; j++) {
+			for (unsigned int j = 0; j < frames * ad->channels; j++) {
 
 				out[j] = ad->samples_in[j] >> 16;
 			}
@@ -231,7 +231,7 @@ OSStatus AudioDriverCoreAudio::input_callback(void *inRefCon,
 
 	OSStatus result = AudioUnitRender(ad->input_unit, ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, &bufferList);
 	if (result == noErr) {
-		for (int i = 0; i < inNumberFrames * ad->capture_channels; i++) {
+		for (unsigned int i = 0; i < inNumberFrames * ad->capture_channels; i++) {
 			int32_t sample = ad->input_buf[i] << 16;
 			ad->capture_buffer_write(sample);
 

drivers/coremidi/midi_driver_coremidi.cpp

@@ -39,7 +39,7 @@
 
 void MIDIDriverCoreMidi::read(const MIDIPacketList *packet_list, void *read_proc_ref_con, void *src_conn_ref_con) {
 	MIDIPacket *packet = const_cast<MIDIPacket *>(packet_list->packet);
-	for (int i = 0; i < packet_list->numPackets; i++) {
+	for (UInt32 i = 0; i < packet_list->numPackets; i++) {
 		receive_input_packet(packet->timeStamp, packet->data, packet->length);
 		packet = MIDIPacketNext(packet);
 	}

drivers/unix/os_unix.cpp

@@ -126,7 +126,9 @@ void OS_Unix::initialize_core() {
 	RWLockDummy::make_default();
 #else
 	ThreadPosix::make_default();
+#if !defined(OSX_ENABLED) && !defined(IPHONE_ENABLED)
 	SemaphorePosix::make_default();
+#endif
 	MutexPosix::make_default();
 	RWLockPosix::make_default();
 #endif

drivers/unix/semaphore_posix.cpp

@@ -30,7 +30,7 @@
 
 #include "semaphore_posix.h"
 
-#if defined(UNIX_ENABLED) || defined(PTHREAD_ENABLED)
+#if (defined(UNIX_ENABLED) || defined(PTHREAD_ENABLED)) && !defined(OSX_ENABLED) && !defined(IPHONE_ENABLED)
 
 #include "core/os/memory.h"
 #include <errno.h>

drivers/unix/semaphore_posix.h

@@ -33,7 +33,7 @@
 
 #include "core/os/semaphore.h"
 
-#if defined(UNIX_ENABLED) || defined(PTHREAD_ENABLED)
+#if (defined(UNIX_ENABLED) || defined(PTHREAD_ENABLED)) && !defined(OSX_ENABLED) && !defined(IPHONE_ENABLED)
 
 #include <semaphore.h>
 

drivers/wasapi/audio_driver_wasapi.cpp

@@ -76,7 +76,7 @@ class CMMNotificationClient : public IMMNotificationClient {
 	CMMNotificationClient() :
 			_cRef(1),
 			_pEnumerator(NULL) {}
-	~CMMNotificationClient() {
+	virtual ~CMMNotificationClient() {
 		if ((_pEnumerator) != NULL) {
 			(_pEnumerator)->Release();
 			(_pEnumerator) = NULL;

platform/iphone/gl_view.h

@@ -79,8 +79,6 @@
 @property(strong, nonatomic) AVPlayer *avPlayer;
 @property(strong, nonatomic) AVPlayerLayer *avPlayerLayer;
 
-// Old videoplayer properties
-@property(strong, nonatomic) MPMoviePlayerController *moviePlayerController;
 @property(strong, nonatomic) UIWindow *backgroundWindow;
 
 @property(nonatomic) UITextAutocorrectionType autocorrectionType;

platform/iphone/gl_view.mm

@@ -729,40 +729,4 @@ - (void)playerItemDidReachEnd:(NSNotification *)notification {
 	_stop_video();
 }
 
-/*
-- (void)moviePlayBackDidFinish:(NSNotification*)notification {
-
-
-		NSNumber* reason = [[notification userInfo] objectForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey];
-		switch ([reason intValue]) {
-				case MPMovieFinishReasonPlaybackEnded:
-						//NSLog(@"Playback Ended");
-						break;
-				case MPMovieFinishReasonPlaybackError:
-						//NSLog(@"Playback Error");
-						video_found_error = true;
-						break;
-				case MPMovieFinishReasonUserExited:
-						//NSLog(@"User Exited");
-						video_found_error = true;
-						break;
-				default:
-					//NSLog(@"Unsupported reason!");
-					break;
-		}
-
-		MPMoviePlayerController *player = [notification object];
-
-		[[NSNotificationCenter defaultCenter]
-			removeObserver:self
-			name:MPMoviePlayerPlaybackDidFinishNotification
-			object:player];
-
-		[_instance.moviePlayerController stop];
-		[_instance.moviePlayerController.view removeFromSuperview];
-
-	video_playing = false;
-}
-*/
-
 @end

platform/iphone/godot_iphone.cpp

@@ -47,7 +47,7 @@ int iphone_main(int, int, int, char **, String);
 
 int iphone_main(int width, int height, int argc, char **argv, String data_dir) {
 
-	int len = strlen(argv[0]);
+	size_t len = strlen(argv[0]);
 
 	while (len--) {
 		if (argv[0][len] == '/') break;

platform/iphone/in_app_store.mm

@@ -92,7 +92,7 @@ - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProdu
 	PoolStringArray localized_prices;
 	PoolStringArray currency_codes;
 
-	for (int i = 0; i < [products count]; i++) {
+	for (NSUInteger i = 0; i < [products count]; i++) {
 
 		SKProduct *product = [products objectAtIndex:i];
 

platform/osx/camera_osx.mm

@@ -150,8 +150,8 @@ - (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CM
 
 		{
 			// do Y
-			int new_width = CVPixelBufferGetWidthOfPlane(pixelBuffer, 0);
-			int new_height = CVPixelBufferGetHeightOfPlane(pixelBuffer, 0);
+			size_t new_width = CVPixelBufferGetWidthOfPlane(pixelBuffer, 0);
+			size_t new_height = CVPixelBufferGetHeightOfPlane(pixelBuffer, 0);
 
 			if ((width[0] != new_width) || (height[0] != new_height)) {
 				width[0] = new_width;
@@ -168,8 +168,8 @@ - (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CM
 
 		{
 			// do CbCr
-			int new_width = CVPixelBufferGetWidthOfPlane(pixelBuffer, 1);
-			int new_height = CVPixelBufferGetHeightOfPlane(pixelBuffer, 1);
+			size_t new_width = CVPixelBufferGetWidthOfPlane(pixelBuffer, 1);
+			size_t new_height = CVPixelBufferGetHeightOfPlane(pixelBuffer, 1);
 
 			if ((width[1] != new_width) || (height[1] != new_height)) {
 				width[1] = new_width;

platform/osx/crash_handler_osx.mm

@@ -95,7 +95,7 @@ static void handle_crash(int sig) {
 	if (strings) {
 		void *load_addr = (void *)load_address();
 
-		for (int i = 1; i < size; i++) {
+		for (size_t i = 1; i < size; i++) {
 			char fname[1024];
 			Dl_info info;
 
@@ -142,7 +142,7 @@ static void handle_crash(int sig) {
 				}
 			}
 
-			fprintf(stderr, "[%d] %ls\n", i, output.c_str());
+			fprintf(stderr, "[%zu] %ls\n", i, output.c_str());
 		}
 
 		free(strings);

platform/osx/detect.py

@@ -91,6 +91,9 @@ def configure(env):
             env['RANLIB'] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-ranlib"
             env['AS'] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-as"
             env.Append(CPPDEFINES=['__MACPORTS__']) #hack to fix libvpx MM256_BROADCASTSI128_SI256 define
+        else:
+            env['CC'] = 'clang'
+            env['CXX'] = 'clang++'
 
         detect_darwin_sdk_path('osx', env)
         env.Append(CCFLAGS=['-isysroot', '$MACOS_SDK_PATH'])

platform/osx/joypad_osx.cpp

@@ -578,7 +578,7 @@ JoypadOSX::JoypadOSX() {
 	const size_t n_elements = sizeof(vals) / sizeof(vals[0]);
 	CFArrayRef array = okay ? CFArrayCreate(kCFAllocatorDefault, vals, n_elements, &kCFTypeArrayCallBacks) : NULL;
 
-	for (int i = 0; i < n_elements; i++) {
+	for (size_t i = 0; i < n_elements; i++) {
 		if (vals[i]) {
 			CFRelease((CFTypeRef)vals[i]);
 		}

platform/osx/os_osx.h

@@ -31,6 +31,8 @@
 #ifndef OS_OSX_H
 #define OS_OSX_H
 
+#define BitMap _QDBitMap // Suppress deprecated QuickDraw definition.
+
 #include "camera_osx.h"
 #include "core/os/input.h"
 #include "crash_handler_osx.h"
@@ -50,6 +52,7 @@
 #include <ApplicationServices/ApplicationServices.h>
 #include <CoreVideo/CoreVideo.h>
 
+#undef BitMap
 #undef CursorShape
 
 class OS_OSX : public OS_Unix {

platform/osx/os_osx.mm

@@ -620,7 +620,7 @@ - (BOOL)performDragOperation:(id<NSDraggingInfo>)sender {
 	NSArray *filenames = [pboard propertyListForType:NSFilenamesPboardType];
 
 	Vector<String> files;
-	for (int i = 0; i < filenames.count; i++) {
+	for (NSUInteger i = 0; i < filenames.count; i++) {
 		NSString *ns = [filenames objectAtIndex:i];
 		char *utfs = strdup([ns UTF8String]);
 		String ret;
@@ -1502,7 +1502,7 @@ static void displays_arrangement_changed(CGDirectDisplayID display_id, CGDisplay
 	[window_object setContentView:window_view];
 	[window_object setDelegate:window_delegate];
 	[window_object setAcceptsMouseMovedEvents:YES];
-	[window_object center];
+	[(NSWindow *)window_object center];
 
 	[window_object setRestorable:NO];
 
@@ -2338,12 +2338,12 @@ static int get_screen_index(NSScreen *screen) {
 };
 
 Point2 OS_OSX::get_native_screen_position(int p_screen) const {
-	if (p_screen == -1) {
+	if (p_screen < 0) {
 		p_screen = get_current_screen();
 	}
 
 	NSArray *screenArray = [NSScreen screens];
-	if (p_screen < [screenArray count]) {
+	if ((NSUInteger)p_screen < [screenArray count]) {
 		float display_scale = _display_scale([screenArray objectAtIndex:p_screen]);
 		NSRect nsrect = [[screenArray objectAtIndex:p_screen] frame];
 		// Return the top-left corner of the screen, for OS X the y starts at the bottom
@@ -2362,12 +2362,12 @@ static int get_screen_index(NSScreen *screen) {
 }
 
 int OS_OSX::get_screen_dpi(int p_screen) const {
-	if (p_screen == -1) {
+	if (p_screen < 0) {
 		p_screen = get_current_screen();
 	}
 
 	NSArray *screenArray = [NSScreen screens];
-	if (p_screen < [screenArray count]) {
+	if ((NSUInteger)p_screen < [screenArray count]) {
 		float displayScale = _display_scale([screenArray objectAtIndex:p_screen]);
 		NSDictionary *description = [[screenArray objectAtIndex:p_screen] deviceDescription];
 		NSSize displayPixelSize = [[description objectForKey:NSDeviceSize] sizeValue];
@@ -2381,12 +2381,12 @@ static int get_screen_index(NSScreen *screen) {
 }
 
 Size2 OS_OSX::get_screen_size(int p_screen) const {
-	if (p_screen == -1) {
+	if (p_screen < 0) {
 		p_screen = get_current_screen();
 	}
 
 	NSArray *screenArray = [NSScreen screens];
-	if (p_screen < [screenArray count]) {
+	if ((NSUInteger)p_screen < [screenArray count]) {
 		float displayScale = _display_scale([screenArray objectAtIndex:p_screen]);
 		// Note: Use frame to get the whole screen size
 		NSRect nsrect = [[screenArray objectAtIndex:p_screen] frame];

platform/windows/os_windows.h

@@ -81,7 +81,9 @@ class OS_Windows : public OS {
 		KEY_EVENT_BUFFER_SIZE = 512
 	};
 
+#ifdef STDOUT_FILE
 	FILE *stdo;
+#endif
 
 	struct KeyEvent {
 
@@ -107,7 +109,6 @@ class OS_Windows : public OS {
 	VisualServer *visual_server;
 	CameraWindows *camera_server;
 	int pressrc;
-	HDC hDC; // Private GDI Device Context
 	HINSTANCE hInstance; // Holds The Instance Of The Application
 	HWND hWnd;
 	Point2 last_pos;