Metal API implementation for macOS

Makefile

@@ -116,8 +116,8 @@ ifeq ($(HOST_OS),Darwin)
   ifeq ($(shell which brew >/dev/null 2>&1 && echo y),y)
 	PLATFORM := $(shell uname -m)
 	OSX_GCC_VER = $(shell find `brew --prefix`/bin/gcc* | grep -oE '[[:digit:]]+' | sort -n | uniq | tail -1)
-	CC := gcc-$(OSX_GCC_VER)
-	CXX := g++-$(OSX_GCC_VER)
+	CC := clang
+	CXX := clang++
 	CPP := cpp-$(OSX_GCC_VER) -P
 	PLATFORM_CFLAGS := -I $(shell brew --prefix)/include
 	PLATFORM_LDFLAGS := -L $(shell brew --prefix)/lib
@@ -440,7 +440,7 @@ RPC_LIBS :=
 ifeq ($(DISCORDRPC),1)
   ifeq ($(WINDOWS_BUILD),1)
     RPC_LIBS := lib/discord/libdiscord-rpc.dll
-  else ifeq ($(OSX_BUILD),1) 
+  else ifeq ($(OSX_BUILD),1)
     # needs testing
     RPC_LIBS := lib/discord/libdiscord-rpc.dylib
   else
@@ -528,7 +528,12 @@ else ifeq ($(findstring SDL,$(WINDOW_API)),SDL)
   else ifeq ($(TARGET_RPI),1)
     BACKEND_LDFLAGS += -lGLESv2
   else ifeq ($(OSX_BUILD),1)
-    BACKEND_LDFLAGS += -framework OpenGL $(shell pkg-config --libs glew)
+    ifeq ($(RENDER_API),METAL)
+      CXXFLAGS += -Iinclude/metalsdk -std=c++20
+	  BACKEND_LDFLAGS += -framework Foundation -framework Metal -framework QuartzCore -lc++
+    else
+      BACKEND_LDFLAGS += -framework OpenGL $(shell pkg-config --libs glew)
+	endif
   else
     BACKEND_LDFLAGS += -lGL
   endif
@@ -1013,8 +1018,8 @@ $(GLOBAL_ASM_DEP).$(NON_MATCHING):
 	touch $@
 
 $(BUILD_DIR)/%.o: %.cpp
-	@$(CXX) -fsyntax-only $(CFLAGS) -MMD -MP -MT $@ -MF $(BUILD_DIR)/$*.d $<
-	$(CXX) -c $(CFLAGS) -o $@ $<
+	@$(CXX) -fsyntax-only $(CFLAGS) $(CXXFLAGS) -MMD -MP -MT $@ -MF $(BUILD_DIR)/$*.d $<
+	$(CXX) -c $(CFLAGS) $(CXXFLAGS) -o $@ $<
 
 $(BUILD_DIR)/%.o: %.c
 	@$(CC_CHECK) $(CC_CHECK_CFLAGS) -MMD -MP -MT $@ -MF $(BUILD_DIR)/$*.d $<

include/metalsdk/Foundation/Foundation.hpp

@@ -0,0 +1,47 @@
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+//
+// Foundation/Foundation.hpp
+//
+// Copyright 2020-2024 Apple Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+#pragma once
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+#include "NSArray.hpp"
+#include "NSAutoreleasePool.hpp"
+#include "NSBundle.hpp"
+#include "NSData.hpp"
+#include "NSDate.hpp"
+#include "NSDefines.hpp"
+#include "NSDictionary.hpp"
+#include "NSEnumerator.hpp"
+#include "NSError.hpp"
+#include "NSLock.hpp"
+#include "NSNotification.hpp"
+#include "NSNumber.hpp"
+#include "NSObject.hpp"
+#include "NSPrivate.hpp"
+#include "NSProcessInfo.hpp"
+#include "NSRange.hpp"
+#include "NSSet.hpp"
+#include "NSSharedPtr.hpp"
+#include "NSString.hpp"
+#include "NSTypes.hpp"
+#include "NSURL.hpp"
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------

include/metalsdk/Foundation/NSArray.hpp

@@ -0,0 +1,124 @@
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+//
+// Foundation/NSArray.hpp
+//
+// Copyright 2020-2024 Apple Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+#pragma once
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+#include "NSObject.hpp"
+#include "NSTypes.hpp"
+#include "NSEnumerator.hpp"
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+namespace NS
+{
+class Array : public Copying<Array>
+{
+public:
+    static Array* array();
+    static Array* array(const Object* pObject);
+    static Array* array(const Object* const* pObjects, UInteger count);
+
+    static Array* alloc();
+
+    Array*        init();
+    Array*        init(const Object* const* pObjects, UInteger count);
+    Array*        init(const class Coder* pCoder);
+
+    template <class _Object = Object>
+    _Object*            object(UInteger index) const;
+    UInteger            count() const;
+    Enumerator<Object>* objectEnumerator() const;
+};
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Array* NS::Array::array()
+{
+    return Object::sendMessage<Array*>(_NS_PRIVATE_CLS(NSArray), _NS_PRIVATE_SEL(array));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Array* NS::Array::array(const Object* pObject)
+{
+    return Object::sendMessage<Array*>(_NS_PRIVATE_CLS(NSArray), _NS_PRIVATE_SEL(arrayWithObject_), pObject);
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Array* NS::Array::array(const Object* const* pObjects, UInteger count)
+{
+    return Object::sendMessage<Array*>(_NS_PRIVATE_CLS(NSArray), _NS_PRIVATE_SEL(arrayWithObjects_count_), pObjects, count);
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Array* NS::Array::alloc()
+{
+    return NS::Object::alloc<Array>(_NS_PRIVATE_CLS(NSArray));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Array* NS::Array::init()
+{
+    return NS::Object::init<Array>();
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Array* NS::Array::init(const Object* const* pObjects, UInteger count)
+{
+    return Object::sendMessage<Array*>(this, _NS_PRIVATE_SEL(initWithObjects_count_), pObjects, count);
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Array* NS::Array::init(const class Coder* pCoder)
+{
+    return Object::sendMessage<Array*>(this, _NS_PRIVATE_SEL(initWithCoder_), pCoder);
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::UInteger NS::Array::count() const
+{
+    return Object::sendMessage<UInteger>(this, _NS_PRIVATE_SEL(count));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+template <class _Object>
+_NS_INLINE _Object* NS::Array::object(UInteger index) const
+{
+    return Object::sendMessage<_Object*>(this, _NS_PRIVATE_SEL(objectAtIndex_), index);
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Enumerator<NS::Object>* NS::Array::objectEnumerator() const
+{
+    return NS::Object::sendMessage<Enumerator<NS::Object>*>(this, _NS_PRIVATE_SEL(objectEnumerator));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------

include/metalsdk/Foundation/NSAutoreleasePool.hpp

@@ -0,0 +1,83 @@
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+//
+// Foundation/NSAutoreleasePool.hpp
+//
+// Copyright 2020-2024 Apple Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+#pragma once
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+#include "NSDefines.hpp"
+#include "NSObject.hpp"
+#include "NSPrivate.hpp"
+#include "NSTypes.hpp"
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+namespace NS
+{
+class AutoreleasePool : public Object
+{
+public:
+    static AutoreleasePool* alloc();
+    AutoreleasePool*        init();
+
+    void                    drain();
+
+    void                    addObject(Object* pObject);
+
+    static void             showPools();
+};
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::AutoreleasePool* NS::AutoreleasePool::alloc()
+{
+    return NS::Object::alloc<AutoreleasePool>(_NS_PRIVATE_CLS(NSAutoreleasePool));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::AutoreleasePool* NS::AutoreleasePool::init()
+{
+    return NS::Object::init<AutoreleasePool>();
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE void NS::AutoreleasePool::drain()
+{
+    Object::sendMessage<void>(this, _NS_PRIVATE_SEL(drain));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE void NS::AutoreleasePool::addObject(Object* pObject)
+{
+    Object::sendMessage<void>(this, _NS_PRIVATE_SEL(addObject_), pObject);
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE void NS::AutoreleasePool::showPools()
+{
+    Object::sendMessage<void>(_NS_PRIVATE_CLS(NSAutoreleasePool), _NS_PRIVATE_SEL(showPools));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------