Merge branch 'compiler-warnings'

This shouldn't break anything so I will go ahead and merge it.  Disc scrubbing is tested and works.  There is a minor change to how the data is read by using the File::IOFile::ReadBytes method instead of directly using fread, but the data read is the same.

Source/Core/Common/Src/MemArena.cpp

@@ -43,7 +43,8 @@ void MemArena::GrabLowMemSpace(size_t size)
 	mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
 	fd = open(ram_temp_file, O_RDWR | O_CREAT, mode);
 	unlink(ram_temp_file);
-	ftruncate(fd, size);
+	if (ftruncate(fd, size) < 0)
+		ERROR_LOG(MEMMAP, "Failed to allocate low memory space");
 	return;
 #endif
 }

Source/Core/Common/Src/MemoryUtil.cpp

@@ -117,7 +117,8 @@ void* AllocateAlignedMemory(size_t size,size_t alignment)
 	void* ptr =  _aligned_malloc(size,alignment);
 #else
 	void* ptr = NULL;
-	posix_memalign(&ptr, alignment, size);
+	if (posix_memalign(&ptr, alignment, size) != 0)
+		ERROR_LOG(MEMMAP, "Failed to allocate aligned memory");
 ;
 #endif
 

Source/Core/Common/Src/StringUtil.cpp

@@ -69,7 +69,8 @@ std::string StringFromFormat(const char* format, ...)
 	delete[] buf;
 #else
 	va_start(args, format);
-	vasprintf(&buf, format, args);
+	if (vasprintf(&buf, format, args) < 0)
+		ERROR_LOG(COMMON, "Unable to allocate memory for string");
 	va_end(args);
 
 	std::string temp = buf;

Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE.cpp

@@ -382,18 +382,18 @@ void ExecuteCommand(u32 _Address)
 			}
 			else
 			{
-				IWII_IPC_HLE_Device* _pDevice = CreateFileIO(DeviceID, DeviceName);
-				CmdSuccess = _pDevice->Open(_Address, Mode);
+				pDevice = CreateFileIO(DeviceID, DeviceName);
+				CmdSuccess = pDevice->Open(_Address, Mode);
 
 				INFO_LOG(WII_IPC_FILEIO, "IOP: Open File (Device=%s, ID=%08x, Mode=%i)",
-						_pDevice->GetDeviceName().c_str(), DeviceID, Mode);
+						pDevice->GetDeviceName().c_str(), DeviceID, Mode);
 				if (Memory::Read_U32(_Address + 4) == (u32)DeviceID)
 				{
-					g_FdMap[DeviceID] = _pDevice;
+					g_FdMap[DeviceID] = pDevice;
 				}
 				else
 				{
-					delete _pDevice;
+					delete pDevice;
 				}
 			}
 

Source/Core/DiscIO/Src/CompressedBlob.cpp

@@ -222,7 +222,7 @@ bool CompressFileToBlob(const char* infile, const char* outfile, u32 sub_type,
 		// u64 size = header.block_size;
 		std::fill(in_buf, in_buf + header.block_size, 0);
 		if (scrubbing)
-			DiscScrubber::GetNextBlock(inf.GetHandle(), in_buf);
+			DiscScrubber::GetNextBlock(inf, in_buf);
 		else
 			inf.ReadBytes(in_buf, header.block_size);
 		z_stream z;

Source/Core/DiscIO/Src/DiscScrubber.cpp

@@ -127,7 +127,7 @@ bool SetupScrub(const char* filename, int block_size)
 	return success;
 }
 
-void GetNextBlock(FILE* in, u8* buffer)
+void GetNextBlock(File::IOFile& in, u8* buffer)
 {
 	u64 CurrentOffset = m_BlockCount * m_BlockSize;
 	u64 i = CurrentOffset / CLUSTER_SIZE;
@@ -136,12 +136,12 @@ void GetNextBlock(FILE* in, u8* buffer)
 	{
 		DEBUG_LOG(DISCIO, "Freeing 0x%016llx", CurrentOffset);
 		std::fill(buffer, buffer + m_BlockSize, 0xFF);
-		fseeko(in, m_BlockSize, SEEK_CUR);
+		in.Seek(m_BlockSize, SEEK_CUR);
 	}
 	else
 	{
 		DEBUG_LOG(DISCIO, "Used    0x%016llx", CurrentOffset);
-		fread(buffer, m_BlockSize, 1, in);
+		in.ReadBytes(buffer, m_BlockSize);
 	}
 
 	m_BlockCount++;

Source/Core/DiscIO/Src/DiscScrubber.h

@@ -38,7 +38,7 @@ namespace DiscScrubber
 {
 
 bool SetupScrub(const char* filename, int block_size);
-void GetNextBlock(FILE* in, u8* buffer);
+void GetNextBlock(File::IOFile& in, u8* buffer);
 void Cleanup();
 
 } // namespace DiscScrubber

Source/Plugins/Plugin_VideoSoftware/Src/Tev.cpp

@@ -431,7 +431,7 @@ static bool AlphaCompare(int alpha, int ref, int comp)
     return true;
 }
 
-static bool AlphaTest(int alpha)
+static bool TevAlphaTest(int alpha)
 {
     bool comp0 = AlphaCompare(alpha, bpmem.alpha_test.ref0, bpmem.alpha_test.comp0);
     bool comp1 = AlphaCompare(alpha, bpmem.alpha_test.ref1, bpmem.alpha_test.comp1);
@@ -700,7 +700,7 @@ void Tev::Draw()
     // convert to 8 bits per component
     u8 output[4] = {(u8)Reg[0][ALP_C], (u8)Reg[0][BLU_C], (u8)Reg[0][GRN_C], (u8)Reg[0][RED_C]};
 
-    if (!AlphaTest(output[ALP_C]))
+    if (!TevAlphaTest(output[ALP_C]))
         return;
 
     // z texture