Enabling linux build (in progress)

12 files changed, 503 insertions, 5 deletions

diff --git a/Platforms/CMakeLists.txt b/Platforms/CMakeLists.txt
index 77fa5ce6..d51bdb08 100644
--- a/Platforms/CMakeLists.txt
+++ b/Platforms/CMakeLists.txt
@@ -15,6 +15,9 @@ elseif(PLATFORM_UNIVERSAL_WINDOWS)
 elseif(PLATFORM_ANDROID)
 	add_subdirectory(Android)
 	add_library(TargetPlatform ALIAS AndroidPlatform)
+elseif(PLATFORM_LINUX)
+	add_subdirectory(Linux)
+	add_library(TargetPlatform ALIAS LinuxPlatform)
 else()
 	message(FATAL_ERROR "No PLATFORM_XXX variable defined. Make sure that 'DiligentCore' folder is processed first")
 endif()
diff --git a/Platforms/Linux/CMakeLists.txt b/Platforms/Linux/CMakeLists.txt
new file mode 100644
index 00000000..220160af
--- /dev/null
+++ b/Platforms/Linux/CMakeLists.txt
@@ -0,0 +1,39 @@
+cmake_minimum_required (VERSION 3.6)
+
+project(LinuxPlatform CXX)
+
+set(INCLUDE 
+	include/LinuxDebug.h
+	include/LinuxFileSystem.h
+	include/LinuxPlatformDefinitions.h
+	include/LinuxPlatformMisc.h
+)
+
+set(SOURCE 
+	src/LinuxDebug.cpp
+	src/LinuxFileSystem.cpp
+)
+
+add_library(LinuxPlatform ${SOURCE} ${INCLUDE})
+set_common_target_properties(LinuxPlatform)
+
+target_include_directories(LinuxPlatform 
+PUBLIC
+	include
+)
+
+target_link_libraries(LinuxPlatform 
+PRIVATE 
+	BuildSettings 
+	Common 
+PUBLIC
+	PlatformInterface
+	BasicPlatform
+)
+
+source_group("src" FILES ${SOURCE})
+source_group("include" FILES ${INCLUDE})
+
+set_target_properties(LinuxPlatform PROPERTIES
+	FOLDER Core/Platforms
+)
diff --git a/Platforms/Linux/include/LinuxDebug.h b/Platforms/Linux/include/LinuxDebug.h
new file mode 100644
index 00000000..1c24f6d1
--- /dev/null
+++ b/Platforms/Linux/include/LinuxDebug.h
@@ -0,0 +1,32 @@
+/*     Copyright 2015-2017 Egor Yusov
+ *  
+ *  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
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#pragma once
+
+#include "../Basic/include/BasicPlatformDebug.h"
+
+struct LinuxDebug : public BasicPlatformDebug
+{
+    static void AssertionFailed( const Diligent::Char *Message, const char *Function, const char *File, int Line );
+    static void OutputDebugMessage( DebugMessageSeverity Severity, const Diligent::Char *Message );
+};
diff --git a/Platforms/Linux/include/LinuxFileSystem.h b/Platforms/Linux/include/LinuxFileSystem.h
new file mode 100644
index 00000000..0fa33a54
--- /dev/null
+++ b/Platforms/Linux/include/LinuxFileSystem.h
@@ -0,0 +1,66 @@
+/*     Copyright 2015-2017 Egor Yusov
+ *  
+ *  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
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#pragma once
+
+#include "../Basic/include/BasicFileSystem.h"
+
+#include <memory>
+#include <vector>
+
+class LinuxFile : public BasicFile
+{
+public:
+    LinuxFile( const FileOpenAttribs &OpenAttribs );
+    ~LinuxFile();
+
+    void Read( Diligent::IDataBlob *pData );
+
+    bool Read( void* Data, size_t BufferSize );
+
+    bool Write( const void *Data, size_t BufferSize );
+
+    size_t GetSize();
+
+    size_t GetPos();
+
+    void SetPos(size_t Offset, FilePosOrigin Origin);
+
+private:
+    //FILE *m_pFile;
+};
+
+struct LinuxFileSystem : public BasicFileSystem
+{
+public:
+    static LinuxFile* OpenFile( const FileOpenAttribs &OpenAttribs );
+    static inline Diligent::Char GetSlashSymbol(){ return '/'; }
+
+    static bool FileExists( const Diligent::Char *strFilePath );
+    static bool PathExists( const Diligent::Char *strPath );
+    
+    static bool CreateDirectory( const Diligent::Char *strPath );
+    static void ClearDirectory( const Diligent::Char *strPath );
+    static void DeleteFile( const Diligent::Char *strPath );
+    static std::vector<std::unique_ptr<FindFileData>> Search(const Diligent::Char *SearchPattern);
+};
diff --git a/Platforms/Linux/include/LinuxPlatformDefinitions.h b/Platforms/Linux/include/LinuxPlatformDefinitions.h
new file mode 100644
index 00000000..454c7446
--- /dev/null
+++ b/Platforms/Linux/include/LinuxPlatformDefinitions.h
@@ -0,0 +1,30 @@
+/*     Copyright 2015-2017 Egor Yusov
+ *  
+ *  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
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#pragma once
+
+#include <cstddef>
+
+template <typename _CountofType, std::size_t _SizeOfArray>
+char (*__countof_helper(_CountofType (&_Array)[_SizeOfArray]))[_SizeOfArray];
+#define _countof(_Array) (sizeof(*__countof_helper(_Array)) + 0)
diff --git a/Platforms/Linux/include/LinuxPlatformMisc.h b/Platforms/Linux/include/LinuxPlatformMisc.h
new file mode 100644
index 00000000..a961f468
--- /dev/null
+++ b/Platforms/Linux/include/LinuxPlatformMisc.h
@@ -0,0 +1,43 @@
+/*     Copyright 2015-2017 Egor Yusov
+ *  
+ *  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
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#pragma once
+
+#include "../Basic/include/BasicPlatformMisc.h"
+#include "DebugUtilities.h"
+
+struct LinuxMisc : public BasicPlatformMisc
+{
+    static Diligent::Uint32 GetMSB(Diligent::Uint32 Val)
+    {
+        if( Val == 0 )return 32;
+
+        // Returns the number of leading 0-bits in x, starting at the 
+        // most significant bit position. If x is 0, the result is undefined.
+        auto LeadingZeros = __builtin_clz(Val);
+        auto MSB = 31 - LeadingZeros;
+        VERIFY_EXPR(MSB == BasicPlatformMisc::GetMSB(Val));
+
+        return MSB;
+    }
+};
diff --git a/Platforms/Linux/src/LinuxDebug.cpp b/Platforms/Linux/src/LinuxDebug.cpp
new file mode 100644
index 00000000..2ffb7a12
--- /dev/null
+++ b/Platforms/Linux/src/LinuxDebug.cpp
@@ -0,0 +1,50 @@
+/*     Copyright 2015-2017 Egor Yusov
+ *  
+ *  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
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#include "LinuxDebug.h"
+#include "FormatMessage.h"
+#include "FileSystem.h"
+//#include <Linux/log.h>
+#include <csignal>
+#include <cassert>
+
+void LinuxDebug :: AssertionFailed( const Diligent::Char *Message, const char *Function, const char *File, int Line )
+{
+    assert(false);
+    //std::string FileName;
+    //FileSystem::SplitFilePath( File, nullptr, &FileName );
+    //std::stringstream msgss;
+    //Diligent::FormatMsg( msgss, "\nDebug assertion failed in ", Function, "(), file ", FileName, ", line ", Line, ":\n", Message);
+    //auto FullMsg = msgss.str();
+    //OutputDebugMessage( DebugMessageSeverity::Error, FullMsg.c_str() );
+
+    //raise( SIGTRAP );
+};
+
+
+void LinuxDebug::OutputDebugMessage( DebugMessageSeverity Severity, const Diligent::Char *Message )
+{
+    assert(false);
+    //static const Linux_LogPriority Priorities[] = { Linux_LOG_INFO, Linux_LOG_WARN, Linux_LOG_ERROR, Linux_LOG_FATAL };
+    //__Linux_log_print( Priorities[static_cast<int>(Severity)], "Graphics Engine", "%s", Message );
+}
diff --git a/Platforms/Linux/src/LinuxFileSystem.cpp b/Platforms/Linux/src/LinuxFileSystem.cpp
new file mode 100644
index 00000000..2ac59630
--- /dev/null
+++ b/Platforms/Linux/src/LinuxFileSystem.cpp
@@ -0,0 +1,190 @@
+/*     Copyright 2015-2017 Egor Yusov
+ *  
+ *  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
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#include "LinuxFileSystem.h"
+#include "Errors.h"
+#include "DebugUtilities.h"
+
+LinuxFile::LinuxFile( const FileOpenAttribs &OpenAttribs ) : 
+    BasicFile(OpenAttribs, LinuxFileSystem::GetSlashSymbol())/*,
+    m_pFile(nullptr)*/
+{
+    //auto OpenModeStr = GetOpenModeStr();
+
+    //for (;; )
+    //{
+    //    errno_t err = fopen_s(&m_pFile, m_OpenAttribs.strFilePath, OpenModeStr.c_str());
+    //    if (err == 0)
+    //    {
+    //        break;
+    //    }
+    //    else if (err == ENFILE || // Too many files open in system 
+    //        err == EMFILE)  // Too many open files 
+    //    {
+    //        // No more file descriptors are available: we have to wait
+    //        //g_SystemMetricsStream << "Failed to open file " << FileName;
+    //        //g_SystemMetricsStream << "\nWaiting 50 ms...\n";
+    //        //Sleep(50);
+    //        continue;
+    //    }
+    //    else
+    //    {
+    //        char errstr[128];
+    //        strerror_s(errstr, _countof(errstr), err);
+    //        LOG_ERROR_AND_THROW("Failed to open file ", m_OpenAttribs.strFilePath,
+    //            "\nThe following error occured: ", errstr);
+    //    }
+    //}
+}
+
+LinuxFile::~LinuxFile()
+{
+    //if( m_pFile )
+    //{
+    //    fclose( m_pFile );
+    //    m_pFile = nullptr;
+    //}
+}
+
+void LinuxFile::Read( Diligent::IDataBlob *pData )
+{
+#if 0
+    auto FullPath = m_OpenAttribs.strFilePath;
+    std::vector<Diligent::Uint8> Data;
+    bool b = JNIHelper::GetInstance()->ReadFile( FullPath, &Data );
+    if( b )
+    {
+        pData->Resize( Data.size() );
+        memcpy( pData->GetDataPtr(), Data.data(), Data.size() );
+    }
+    else
+    {
+        LOG_ERROR_MESSAGE( "Unable to open file ", m_OpenAttribs.strFilePath, "\nFull path: ", FullPath );
+    }
+#endif
+    UNSUPPORTED("Not implemented")
+}
+
+size_t LinuxFile::GetSize()
+{
+    UNSUPPORTED( "Not implemented" );
+
+    return 0;
+}
+
+bool LinuxFile::Read( void *Data, size_t BufferSize )
+{
+    UNSUPPORTED( "Not implemented" );
+
+    //VERIFY( m_pFile, "File not opened" );
+    //auto OrigPos = ftell( m_pFile );
+    //fseek( m_pFile, 0, SEEK_END );
+    //auto FileSize = ftell( m_pFile );
+    //fseek( m_pFile, 0, SEEK_SET );
+    //Data.resize( FileSize );
+    //auto ItemsRead = fread( Data.data(), FileSize, 1, m_pFile );
+    //fseek( m_pFile, OrigPos, SEEK_SET );
+    //return ItemsRead == 1;
+    return false;
+}
+
+bool LinuxFile::Write( const void *Data, size_t BufferSize )
+{
+    UNSUPPORTED( "Not implemented" );
+
+    return false;
+}
+
+size_t LinuxFile::GetPos()
+{
+    UNSUPPORTED( "Not implemented" );
+
+    return 0;
+}
+
+void LinuxFile::SetPos(size_t Offset, FilePosOrigin Origin)
+{
+    UNSUPPORTED( "Not implemented" );
+}
+
+
+LinuxFile* LinuxFileSystem::OpenFile( const FileOpenAttribs &OpenAttribs )
+{
+    LinuxFile *pFile = nullptr;
+#if 0
+    try
+    {
+        pFile = new LinuxFile( OpenAttribs );
+    }
+    catch( const std::runtime_error &err )
+    {
+
+    }
+#endif
+    UNSUPPORTED("Not implemented")
+    return pFile;
+}
+
+
+bool LinuxFileSystem::FileExists( const Diligent::Char *strFilePath )
+{
+#if 0
+    FileOpenAttribs OpenAttribs;
+    OpenAttribs.strFilePath = strFilePath;
+    BasicFile DummyFile( OpenAttribs, LinuxFileSystem::GetSlashSymbol() );
+    const auto& Path = DummyFile.GetPath();
+    std::vector<Diligent::Uint8> Data;
+    bool b = JNIHelper::GetInstance()->ReadFile( Path.c_str(), &Data );
+    return b;
+#endif
+    UNSUPPORTED("Not implemented")
+    return false;
+}
+
+bool LinuxFileSystem::PathExists( const Diligent::Char *strPath )
+{
+    UNSUPPORTED( "Not implemented" );
+    return false;
+}
+    
+bool LinuxFileSystem::CreateDirectory( const Diligent::Char *strPath )
+{
+    UNSUPPORTED( "Not implemented" );
+    return false;
+}
+
+void LinuxFileSystem::ClearDirectory( const Diligent::Char *strPath )
+{
+    UNSUPPORTED( "Not implemented" );
+}
+
+void LinuxFileSystem::DeleteFile( const Diligent::Char *strPath )
+{
+    UNSUPPORTED( "Not implemented" );
+}
+    
+std::vector<std::unique_ptr<FindFileData>> LinuxFileSystem::Search(const Diligent::Char *SearchPattern)
+{
+    UNSUPPORTED( "Not implemented" );
+    return std::vector<std::unique_ptr<FindFileData>>();
+}
diff --git a/Platforms/interface/FileSystem.h b/Platforms/interface/FileSystem.h
index 91f20e58..f9ce26f3 100644
--- a/Platforms/interface/FileSystem.h
+++ b/Platforms/interface/FileSystem.h
@@ -42,4 +42,13 @@
     #include "../Android/include/AndroidFileSystem.h"
     typedef AndroidFileSystem FileSystem;
     typedef AndroidFile       CFile;
+
+#elif defined ( PLATFORM_LINUX )
+
+    #include "../Linux/include/LinuxFileSystem.h"
+    typedef LinuxFileSystem FileSystem;
+    typedef LinuxFile       CFile;
+
+#elif
+    #error Unsupported platform
 #endif
diff --git a/Platforms/interface/PlatformDebug.h b/Platforms/interface/PlatformDebug.h
index 994f6849..0e00e76c 100644
--- a/Platforms/interface/PlatformDebug.h
+++ b/Platforms/interface/PlatformDebug.h
@@ -36,4 +36,11 @@
 #elif defined ( PLATFORM_ANDROID )
     #include "../Android/include/AndroidDebug.h"
     typedef AndroidDebug PlatformDebug;
+
+#elif defined ( PLATFORM_LINUX )
+    #include "../Linux/include/LinuxDebug.h"
+    typedef LinuxDebug PlatformDebug;
+
+#else
+    #error Unsupported platform
 #endif
diff --git a/Platforms/interface/PlatformDefinitions.h b/Platforms/interface/PlatformDefinitions.h
index 6d1adcec..3f8638e2 100644
--- a/Platforms/interface/PlatformDefinitions.h
+++ b/Platforms/interface/PlatformDefinitions.h
@@ -24,18 +24,21 @@
 #pragma once
 
 #if defined(ANDROID)
-#   if defined (PLATFORM_UNIVERSAL_WINDOWS) || defined (PLATFORM_WIN32) 
-#       error Conflicting platform macros
-#   endif
 #   ifndef PLATFORM_ANDROID
 #       define PLATFORM_ANDROID
 #   endif
-#elif !defined (PLATFORM_UNIVERSAL_WINDOWS) && !defined (PLATFORM_WIN32) 
+#endif
+
+#if !defined(PLATFORM_WIN32) && !defined(PLATFORM_UNIVERSAL_WINDOWS) && !defined(PLATFORM_ANDROID) && !defined(PLATFORM_LINUX)
     #error Platform is not defined
 #endif
 
 #if defined( PLATFORM_WIN32 )
 
+#   if defined(PLATFORM_UNIVERSAL_WINDOWS) || defined(PLATFORM_ANDROID) || defined(PLATFORM_LINUX) 
+#       error Conflicting platform macros
+#   endif
+
 #   include "..\Win32\include\Win32PlatformDefinitions.h"
 
 #   define OPENGL_SUPPORTED 1
@@ -44,13 +47,21 @@
 
 #elif defined( PLATFORM_UNIVERSAL_WINDOWS )
 
+#   if defined(PLATFORM_WIN32) || defined(PLATFORM_ANDROID) || defined(PLATFORM_LINUX) 
+#       error Conflicting platform macros
+#   endif
+
 #   include "..\UWP\include\UWPDefinitions.h"
 
 #   define OPENGL_SUPPORTED 0
 #   define D3D11_SUPPORTED 1
 #   define D3D12_SUPPORTED 1
 
-#elif defined ( PLATFORM_ANDROID )
+#elif defined( PLATFORM_ANDROID )
+
+#   if defined (PLATFORM_WIN32) || defined(PLATFORM_UNIVERSAL_WINDOWS) || defined (PLATFORM_LINUX) 
+#       error Conflicting platform macros
+#   endif
 
 #   include "../Android/include/AndroidPlatformDefinitions.h"
 
@@ -58,4 +69,16 @@
 #   define D3D11_SUPPORTED 0
 #   define D3D12_SUPPORTED 0
 
+#elif defined( PLATFORM_LINUX )
+
+#   if defined(PLATFORM_WIN32) || defined(PLATFORM_UNIVERSAL_WINDOWS) || defined(PLATFORM_ANDROID) 
+#       error Conflicting platform macros
+#   endif
+
+#   include "../Linux/include/LinuxPlatformDefinitions.h"
+
+#   define OPENGL_SUPPORTED 1
+#   define D3D11_SUPPORTED 0
+#   define D3D12_SUPPORTED 0
+
 #endif
diff --git a/Platforms/interface/PlatformMisc.h b/Platforms/interface/PlatformMisc.h
index fbcbcff6..b4d10aaa 100644
--- a/Platforms/interface/PlatformMisc.h
+++ b/Platforms/interface/PlatformMisc.h
@@ -32,4 +32,10 @@
 #elif defined ( PLATFORM_ANDROID )
     #include "../Android/include/AndroidPlatformMisc.h"
     typedef AndroidMisc PlatformMisc;
+
+#elif defined ( PLATFORM_LINUX )
+    #include "../Linux/include/LinuxPlatformMisc.h"
+    typedef LinuxMisc PlatformMisc;
+#else
+    #error Unsupported platform
 #endif