simple file handler class

shadPS4/Types.h

@@ -0,0 +1,14 @@
+#pragma once
+
+using S08 = char;
+using S16 = short;
+using S32 = int;
+using S64 = long long;
+
+using U08 = unsigned char;
+using U16 = unsigned short;
+using U32 = unsigned int;
+using U64 = unsigned long long;
+
+using F32 = float;
+using F64 = double;

shadPS4/core/FsFile.cpp

@@ -0,0 +1,90 @@
+#include "FsFile.h"
+
+FsFile::FsFile()
+{
+	m_file = nullptr;
+}
+FsFile::FsFile(const std::string& path, fsOpenMode mode)
+{
+	Open(path, mode);
+}
+bool FsFile::Open(const std::string& path, fsOpenMode mode)
+{
+	Close();
+	fopen_s(&m_file, path.c_str(), getOpenMode(mode));
+	return IsOpen();
+}
+bool FsFile::Close()
+{
+	if (!IsOpen() || std::fclose(m_file) != 0) {
+		m_file = nullptr;
+		return false;
+	}
+
+	m_file = nullptr;
+	return true;
+}
+FsFile::~FsFile()
+{
+	Close();
+}
+
+bool FsFile::Write(const void* src, U64 size)
+{
+	if (!IsOpen() || std::fwrite(src, 1, size, m_file) != size) {
+		return false;
+	}
+	return true;
+}
+
+bool FsFile::Read(void* dst, U64 size)
+{
+	if (!IsOpen() || std::fread(dst, 1, size, m_file) != size) {
+		return false;
+	}
+	return true;
+}
+
+U32 FsFile::ReadBytes(void* dst, U64 size)
+{
+	return std::fread(dst, 1, size, m_file);
+}
+
+bool FsFile::Seek(S64 offset, fsSeekMode mode)
+{
+	if (!IsOpen() || _fseeki64(m_file, offset, getSeekMode(mode)) != 0) {
+		return false;
+	}
+	return true;
+}
+
+U64 FsFile::Tell() const
+{
+	if (IsOpen()) {
+		return _ftelli64(m_file);
+	}
+	else {
+		return -1;
+	}
+}
+U64 FsFile::getFileSize()
+{
+	U64 pos = _ftelli64(m_file);
+	if (_fseeki64(m_file, 0, SEEK_END) != 0) {
+
+		return 0;
+	}
+
+	U64 size = _ftelli64(m_file);
+	if (_fseeki64(m_file, pos, SEEK_SET) != 0) {
+
+		return 0;
+	}
+	return size;
+}
+
+bool FsFile::IsOpen() const
+{
+	return m_file != nullptr;
+}
+

shadPS4/core/FsFile.h

@@ -0,0 +1,64 @@
+#pragma once
+#include <cstdio>
+#include <string>
+#include "../Types.h"
+
+enum fsOpenMode
+{
+	fsRead = 0x1,
+	fsWrite = 0x2,
+	fsReadWrite = fsRead | fsWrite
+};
+
+enum fsSeekMode
+{
+	fsSeekSet,
+	fsSeekCur,
+	fsSeekEnd,
+};
+
+class FsFile
+{
+	std::FILE* m_file;
+public:
+	FsFile();
+	FsFile(const std::string& path, fsOpenMode mode = fsRead);
+	bool Open(const std::string& path, fsOpenMode mode = fsRead);
+	bool IsOpen() const;
+	bool Close();
+	bool Read(void* dst, U64 size);
+	U32 ReadBytes(void* dst, U64 size);
+	bool Write(const void* src, U64 size);
+	bool Seek(S64 offset, fsSeekMode mode);
+	U64 getFileSize();
+	U64 Tell() const;
+	~FsFile();
+
+
+	const char* getOpenMode(fsOpenMode mode)
+	{
+		switch (mode) {
+		case fsRead:        return "rb";
+		case fsWrite:       return "wb";
+		case fsReadWrite:   return "r+b";
+		}
+
+		return "r";
+	}
+
+	const int getSeekMode(fsSeekMode mode)
+	{
+		switch (mode) {
+		case fsSeekSet:  return SEEK_SET;
+		case fsSeekCur:  return SEEK_CUR;
+		case fsSeekEnd:  return SEEK_END;
+		}
+
+		return SEEK_SET;
+	}
+	std::FILE* fileDescr()
+	{
+		return m_file;
+	}
+};
+

shadPS4/shadPS4.vcxproj

@@ -11,6 +11,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="core\FsFile.cpp" />
     <ClCompile Include="gui\GameListViewer.cpp" />
     <ClCompile Include="gui\shadps4gui.cpp" />
     <ClCompile Include="main.cpp" />
@@ -24,6 +25,10 @@
   <ItemGroup>
     <QtMoc Include="gui\GameListViewer.h" />
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="core\FsFile.h" />
+    <ClInclude Include="Types.h" />
+  </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{F005E4D9-1FBE-40B3-9FBD-35CEC59081CD}</ProjectGuid>
     <Keyword>QtVS_v304</Keyword>

shadPS4/shadPS4.vcxproj.filters

@@ -24,6 +24,9 @@
     <Filter Include="gui">
       <UniqueIdentifier>{29ee17bd-9ad4-44e8-b1cd-b4be13ec6509}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Core">
+      <UniqueIdentifier>{73d07238-8864-48b5-9987-e455fa73c82f}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="main.cpp">
@@ -35,6 +38,9 @@
     <ClCompile Include="gui\GameListViewer.cpp">
       <Filter>gui</Filter>
     </ClCompile>
+    <ClCompile Include="core\FsFile.cpp">
+      <Filter>Core</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <QtUic Include="gui\shadps4gui.ui">
@@ -49,4 +55,12 @@
       <Filter>gui</Filter>
     </QtMoc>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="Types.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="core\FsFile.h">
+      <Filter>Core</Filter>
+    </ClInclude>
+  </ItemGroup>
 </Project>