Merge pull request #16 from Unity-Technologies/embeddelinux_support

EmbeddedLinux support

Author: BorisShir

PluginSource/projects/EmbeddedLinux/make_arm32.bat

@@ -0,0 +1,2 @@
+REM UNITY_ROOT should be set to folder with Unity repository
+"%UNITY_ROOT%/build/EmbeddedLinux/llvm/bin/clang++" --sysroot="%UNITY_ROOT%/build/EmbeddedLinux/sdk-linux-arm32/arm-embedded-linux-gnueabihf/sysroot" -DUNITY_EMBEDDED_LINUX=1 -O2 -fPIC -shared -rdynamic -o libRenderingPlugin.so -fuse-ld=lld.exe -Wl,-soname,RenderingPlugin -Wl,-lGLESv2 --gcc-toolchain="%UNITY_ROOT%/build/EmbeddedLinux/sdk-linux-arm32" -target arm-embedded-linux-gnueabihf ../../source/RenderingPlugin.cpp ../../source/RenderAPI_OpenGLCoreES.cpp ../../source/RenderAPI.cpp

PluginSource/projects/EmbeddedLinux/make_arm64.bat

@@ -0,0 +1,2 @@
+REM UNITY_ROOT should be set to folder with Unity repository
+"%UNITY_ROOT%/build/EmbeddedLinux/llvm/bin/clang++" --sysroot="%UNITY_ROOT%/build/EmbeddedLinux/sdk-linux-arm64/aarch64-embedded-linux-gnu/sysroot" -DUNITY_EMBEDDED_LINUX=1 -O2 -fPIC -shared -rdynamic -o libRenderingPlugin.so -fuse-ld=lld.exe -Wl,-soname,RenderingPlugin -Wl,-lGLESv2 --gcc-toolchain="%UNITY_ROOT%/build/EmbeddedLinux/sdk-linux-arm64" -target aarch64-embedded-linux-gnu ../../source/RenderingPlugin.cpp ../../source/RenderAPI_OpenGLCoreES.cpp ../../source/RenderAPI.cpp

PluginSource/projects/EmbeddedLinux/make_x64.bat

@@ -0,0 +1,2 @@
+REM UNITY_ROOT should be set to folder with Unity repository
+"%UNITY_ROOT%/build/EmbeddedLinux/llvm/bin/clang++" --sysroot="%UNITY_ROOT%/build/EmbeddedLinux/sdk-linux-x64/x86_64-embedded-linux-gnu/sysroot" -DUNITY_EMBEDDED_LINUX_GL=1 -O2 -fPIC -shared -rdynamic -o libRenderingPlugin.so -fuse-ld=lld.exe -Wl,-soname,RenderingPlugin -Wl,-lGL --gcc-toolchain="%UNITY_ROOT%/build/EmbeddedLinux/sdk-linux-x64" -target x86_64-embedded-linux-gnu ../../source/RenderingPlugin.cpp ../../source/RenderAPI_OpenGLCoreES.cpp ../../source/RenderAPI.cpp

PluginSource/projects/EmbeddedLinux/make_x86.bat

@@ -0,0 +1,2 @@
+REM UNITY_ROOT should be set to folder with Unity repository
+"%UNITY_ROOT%/build/EmbeddedLinux/llvm/bin/clang++" --sysroot="%UNITY_ROOT%/build/EmbeddedLinux/sdk-linux-x86/i686-embedded-linux-gnu/sysroot" -DUNITY_EMBEDDED_LINUX_GL=1 -O2 -fPIC -shared -rdynamic -o libRenderingPlugin.so -fuse-ld=lld.exe -Wl,-soname,RenderingPlugin -Wl,-lGL --gcc-toolchain="%UNITY_ROOT%/build/EmbeddedLinux/sdk-linux-x86" -target i686-embedded-linux-gnu ../../source/RenderingPlugin.cpp ../../source/RenderAPI_OpenGLCoreES.cpp ../../source/RenderAPI.cpp

PluginSource/source/PlatformBase.h

@@ -14,6 +14,8 @@
 // UNITY_ANDROID - Android
 // UNITY_METRO - WSA or UWP
 // UNITY_WEBGL - WebGL
+// UNITY_EMBEDDED_LINUX - EmbeddedLinux OpenGLES
+// UNITY_EMBEDDED_LINUX_GL - EmbeddedLinux OpenGLCore
 #if _MSC_VER
 	#define UNITY_WIN 1
 #elif defined(__APPLE__)
@@ -26,7 +28,7 @@
 	#endif
 #elif defined(__ANDROID__)
 	#define UNITY_ANDROID 1
-#elif defined(UNITY_METRO) || defined(UNITY_LINUX) || defined(UNITY_WEBGL)
+#elif defined(UNITY_METRO) || defined(UNITY_LINUX) || defined(UNITY_WEBGL) || defined (UNITY_EMBEDDED_LINUX) || defined (UNITY_EMBEDDED_LINUX_GL)
 	// these are defined externally
 #elif defined(__EMSCRIPTEN__)
 	// this is already defined in Unity 5.6
@@ -49,15 +51,15 @@
 	#define SUPPORT_OPENGL_UNIFIED 1
 	#define SUPPORT_OPENGL_CORE 1
 	#define SUPPORT_VULKAN 0 // Requires Vulkan SDK to be installed
-#elif UNITY_IOS || UNITY_TVOS || UNITY_ANDROID || UNITY_WEBGL
+#elif UNITY_IOS || UNITY_TVOS || UNITY_ANDROID || UNITY_WEBGL || UNITY_EMBEDDED_LINUX
 	#ifndef SUPPORT_OPENGL_ES
 		#define SUPPORT_OPENGL_ES 1
 	#endif
 	#define SUPPORT_OPENGL_UNIFIED SUPPORT_OPENGL_ES
 	#ifndef SUPPORT_VULKAN
 		#define SUPPORT_VULKAN 0
 	#endif
-#elif UNITY_OSX || UNITY_LINUX
+#elif UNITY_OSX || UNITY_LINUX || UNITY_EMBEDDED_LINUX_GL
 	#define SUPPORT_OPENGL_UNIFIED 1
 	#define SUPPORT_OPENGL_CORE 1
 #endif

PluginSource/source/RenderAPI_OpenGLCoreES.cpp

@@ -11,7 +11,7 @@
 #include <assert.h>
 #if UNITY_IOS || UNITY_TVOS
 #	include <OpenGLES/ES2/gl.h>
-#elif UNITY_ANDROID || UNITY_WEBGL
+#elif UNITY_ANDROID || UNITY_WEBGL || UNITY_EMBEDDED_LINUX
 #	include <GLES2/gl2.h>
 #elif UNITY_OSX
 #	include <OpenGL/gl3.h>
@@ -20,7 +20,7 @@
 // library (like GLEW, GLFW etc.) can be used; here we use gl3w since it's simple and
 // straightforward.
 #	include "gl3w/gl3w.h"
-#elif UNITY_LINUX
+#elif UNITY_LINUX || UNITY_EMBEDDED_LINUX_GL
 #	define GL_GLEXT_PROTOTYPES
 #	include <GL/gl.h>
 #else

README.md

@@ -30,6 +30,7 @@ Native code rendering is implemented for several platforms and graphics APIs:
 * WebGL (OpenGL ES)
 * Android (OpenGL ES, Vulkan)
 * iOS/tvOS (Metal; Simulator is supported if you use unity 2020+ and XCode 11+)
+* EmbeddedLinux (OpenGL, Open GLES)
 * ...more platforms might be coming soon, we just did not get around to adding project files yet.
 
 Code is organized as follows:
@@ -40,6 +41,7 @@ Code is organized as follows:
 	* `projects/UWPVisualStudio2015`: Visual Studio 2015 project files for Windows Store (UWP - Win10) plugin
 	* `projects/Xcode`: Apple Xcode project file for Mac OS X plugin, Xcode 10.3 on macOS 10.14 was tested
 	* `projects/GNUMake`: Makefile for Linux
+	* `projects/EmbeddedLinux`: Windows .bat files to build plugins for different architectures
 * `UnityProject` is the Unity (2018.3.9 was tested) project.
 	* Single `scene` that contains the plugin sample scene.