Common: Clean up ScopedAlloc

common/AlignedMalloc.cpp

@@ -18,8 +18,8 @@
 
 #if !defined(_WIN32)
 
+#include "common/AlignedMalloc.h"
 #include "common/Assertions.h"
-#include "common/ScopedAlloc.h"
 
 void* __fastcall _aligned_malloc(size_t size, size_t align)
 {

common/AlignedMalloc.h

@@ -80,50 +80,57 @@ extern Fnptr_OutOfMemory pxDoOutOfMemory;
 
 
 // --------------------------------------------------------------------------------------
-//  BaseScopedAlloc
+//  AlignedBuffer
 // --------------------------------------------------------------------------------------
-// Base class that allows various ScopedMalloc types to be passed to functions that act
+// A simple container class for an aligned allocation.  By default, no bounds checking is
-// on them.
+// performed, and there is no option for enabling bounds checking.  If bounds checking and
+// other features are needed, use the more robust SafeArray<> instead.
 //
-// Rationale: This class and the derived varieties are provided as a simple autonomous self-
+template <typename T, uint align>
-// destructing container for malloc.  The entire class is almost completely dependency free,
+class AlignedBuffer
-// and thus can be included everywhere and anywhere without dependency hassles.
-//
-template <typename T>
-class BaseScopedAlloc
 {
-protected:
+	static_assert(std::is_pod<T>::value, "Must use a POD type");
-	T* m_buffer;
+
-	uint m_size;
+	struct Deleter
+	{
+		void operator()(T* ptr)
+		{
+			_aligned_free(ptr);
+		}
+	};
+
+	std::unique_ptr<T[], Deleter> m_buffer;
+	std::size_t m_size;
 
 public:
-	BaseScopedAlloc()
+	AlignedBuffer(size_t size = 0)
 	{
-		m_buffer = NULL;
+		Alloc(size);
-		m_size = 0;
 	}
 
-	virtual ~BaseScopedAlloc()
-	{
-		//pxAssert(m_buffer==NULL);
-	}
-
-public:
 	size_t GetSize() const { return m_size; }
 	size_t GetLength() const { return m_size; }
 
-	// Allocates the object to the specified size.  If an existing allocation is in
+	void Alloc(size_t newsize)
-	// place, it is freed and replaced with the new allocation, and all data is lost.
+	{
-	// Parameter:
+		m_size = newsize;
-	//   newSize - size of the new allocation, in elements (not bytes!).  If the specified
+		m_buffer.reset();
-	//     size is 0, the the allocation is freed, same as calling Free().
+		if (!m_size)
-	virtual void Alloc(size_t newsize) = 0;
+			return;
 
-	// Re-sizes the allocation to the requested size, without any data loss.
+		m_buffer.reset(reinterpret_cast<T*>(_aligned_malloc(this->m_size * sizeof(T), align)));
-	// Parameter:
+		if (!m_buffer)
-	//   newSize - size of the new allocation, in elements (not bytes!).  If the specified
+			throw std::bad_alloc();
-	//     size is 0, the the allocation is freed, same as calling Free().
+	}
-	virtual void Resize(size_t newsize) = 0;
+
+	void Resize(size_t newsize)
+	{
+		m_buffer.reset(reinterpret_cast<T*>(pcsx2_aligned_realloc(m_buffer.release(), newsize * sizeof(T), align, m_size * sizeof(T))));
+		m_size = newsize;
+
+		if (!m_buffer)
+			throw std::bad_alloc();
+	}
 
 	void Free()
 	{
@@ -162,103 +169,3 @@ public:
 		return m_buffer[idx];
 	}
 };
-
-// --------------------------------------------------------------------------------------
-//  ScopedAlloc
-// --------------------------------------------------------------------------------------
-// A simple container class for a standard malloc allocation.  By default, no bounds checking
-// is performed, and there is no option for enabling bounds checking.  If bounds checking and
-// other features are needed, use the more robust SafeArray<> instead.
-//
-// See docs for BaseScopedAlloc for details and rationale.
-//
-template <typename T>
-class ScopedAlloc : public BaseScopedAlloc<T>
-{
-	typedef BaseScopedAlloc<T> _parent;
-
-public:
-	ScopedAlloc(size_t size = 0)
-		: _parent()
-	{
-		Alloc(size);
-	}
-
-	virtual ~ScopedAlloc()
-	{
-		safe_free(this->m_buffer);
-	}
-
-	virtual void Alloc(size_t newsize)
-	{
-		safe_free(this->m_buffer);
-		this->m_size = newsize;
-		if (!this->m_size)
-			return;
-
-		this->m_buffer = (T*)malloc(this->m_size * sizeof(T));
-		if (!this->m_buffer)
-			throw Exception::OutOfMemory(L"ScopedAlloc");
-	}
-
-	virtual void Resize(size_t newsize)
-	{
-		this->m_size = newsize;
-		this->m_buffer = (T*)realloc(this->m_buffer, this->m_size * sizeof(T));
-
-		if (!this->m_buffer)
-			throw Exception::OutOfMemory(L"ScopedAlloc::Resize");
-	}
-
-	using _parent::operator[];
-};
-
-// --------------------------------------------------------------------------------------
-//  ScopedAlignedAlloc
-// --------------------------------------------------------------------------------------
-// A simple container class for an aligned allocation.  By default, no bounds checking is
-// performed, and there is no option for enabling bounds checking.  If bounds checking and
-// other features are needed, use the more robust SafeArray<> instead.
-//
-// See docs for BaseScopedAlloc for details and rationale.
-//
-template <typename T, uint align>
-class ScopedAlignedAlloc : public BaseScopedAlloc<T>
-{
-	typedef BaseScopedAlloc<T> _parent;
-
-public:
-	ScopedAlignedAlloc(size_t size = 0)
-		: _parent()
-	{
-		Alloc(size);
-	}
-
-	virtual ~ScopedAlignedAlloc()
-	{
-		safe_aligned_free(this->m_buffer);
-	}
-
-	virtual void Alloc(size_t newsize)
-	{
-		safe_aligned_free(this->m_buffer);
-		this->m_size = newsize;
-		if (!this->m_size)
-			return;
-
-		this->m_buffer = (T*)_aligned_malloc(this->m_size * sizeof(T), align);
-		if (!this->m_buffer)
-			throw Exception::OutOfMemory(L"ScopedAlignedAlloc");
-	}
-
-	virtual void Resize(size_t newsize)
-	{
-		this->m_buffer = (T*)pcsx2_aligned_realloc(this->m_buffer, newsize * sizeof(T), align, this->m_size * sizeof(T));
-		this->m_size = newsize;
-
-		if (!this->m_buffer)
-			throw Exception::OutOfMemory(L"ScopedAlignedAlloc::Resize");
-	}
-
-	using _parent::operator[];
-};

common/CMakeLists.txt

@@ -61,6 +61,7 @@ target_sources(common PRIVATE
 # x86emitter headers
 target_sources(common PRIVATE
 	Align.h
+	AlignedMalloc.h
 	Assertions.h
 	boost_spsc_queue.hpp
 	Console.h
@@ -81,7 +82,6 @@ target_sources(common PRIVATE
 	RedtapeWindows.h
 	RwMutex.h
 	SafeArray.h
-	ScopedAlloc.h
 	ScopedGuard.h
 	ScopedPtrMT.h
 	SettingsInterface.h

common/Dependencies.h

@@ -277,4 +277,4 @@ extern wxString fromAscii(const char* src);
 
 #include "common/Assertions.h"
 #include "common/Exceptions.h"
-#include "common/ScopedAlloc.h"
+#include "common/AlignedMalloc.h"

common/StringHelpers.h

@@ -19,7 +19,7 @@
 #include <wx/tokenzr.h>
 #include "common/Dependencies.h"
 #include "common/SafeArray.h"
-#include "common/ScopedAlloc.h"
+#include "common/AlignedMalloc.h"
 
 #if _WIN32
 #define WX_STR(str) (str.wc_str())
@@ -132,7 +132,7 @@ struct ParsedAssignmentString
 //    accepts Ascii/UTF8 only.
 //
 
-typedef ScopedAlignedAlloc<char, 16> CharBufferType;
+typedef AlignedBuffer<char, 16> CharBufferType;
 // --------------------------------------------------------------------------------------
 //  FastFormatAscii
 // --------------------------------------------------------------------------------------

common/common.vcxproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(SolutionDir)common\vsprops\BaseProjectConfig.props" />
   <Import Project="$(SolutionDir)common\vsprops\WinSDK.props" />
@@ -100,6 +100,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Align.h" />
+    <ClInclude Include="AlignedMalloc.h" />
     <ClInclude Include="BitCast.h" />
     <ClInclude Include="EmbeddedImage.h" />
     <ClInclude Include="boost_spsc_queue.hpp" />
@@ -107,7 +108,6 @@
     <ClInclude Include="GL\Context.h" />
     <ClInclude Include="GL\ContextWGL.h" />
     <ClInclude Include="GL\StreamBuffer.h" />
-    <ClInclude Include="ScopedAlloc.h" />
     <ClInclude Include="ScopedGuard.h" />
     <ClInclude Include="StringUtil.h" />
     <ClInclude Include="SettingsInterface.h" />

common/common.vcxproj.filters

@@ -132,6 +132,9 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="AlignedMalloc.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="Assertions.h">
       <Filter>Header Files</Filter>
     </ClInclude>
@@ -222,9 +225,6 @@
     <ClInclude Include="SafeArray.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="ScopedAlloc.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
     <ClInclude Include="emitter\implement\simd_arithmetic.h">
       <Filter>Header Files</Filter>
     </ClInclude>

pcsx2/SaveState.cpp

@@ -452,8 +452,8 @@ void SysState_ComponentFreezeIn(pxInputStream& infp, SysState_Component comp)
 		return;
 	}
 
-	ScopedAlloc<u8> data(fP.size);
+	auto data = std::make_unique<u8[]>(fP.size);
-	fP.data = data.GetPtr();
+	fP.data = data.get();
 
 	infp.Read(fP.data, fP.size);
 	if (comp.freeze(FreezeAction::Load, &fP) != 0)