Merge pull request #45 from Unity-Technologies/add-qnx-support

add QNX support

Author: brice-gros

.gitignore

@@ -19,3 +19,4 @@ UnityProject/Logs
 PluginSource/build
 PluginSource/projects/Android/libs/*
 PluginSource/projects/Android/obj/*
+PluginSource/source/*.o

PluginSource/projects/QNX/Makefile

@@ -0,0 +1,48 @@
+# UNITY_QNX_TARGET_LIB allows to specify the path to the QNX target libraries
+# e.g. for imx8qm, use "~/qnx710/target/qnx7/aarch64le/usr/lib/graphics/iMX8QM/"
+UNITY_QNX_TARGET_LIB ?= $(QNX_TARGET)/aarch64le/usr/lib
+
+# UNITY_QNX_GLES2_LIB allows to link against a device/driver-specific library
+# e.g. for imx8qm, use "GLESv2_viv"
+UNITY_QNX_GLES2_LIB ?= GLESv2
+
+SRCDIR = ../../source
+SRCS = $(SRCDIR)/RenderingPlugin.cpp \
+$(SRCDIR)/RenderAPI.cpp \
+$(SRCDIR)/RenderAPI_OpenGLCoreES.cpp
+OBJS = ${SRCS:.cpp=.o}
+UNITY_DEFINES = -DUNITY_QNX=1
+CXXFLAGS = $(UNITY_DEFINES) -O2 -fPIC
+LDFLAGS = -shared -rdynamic -static-libstdc++ -Wl,-soname,RenderingPlugin -Wl,-L$(UNITY_QNX_TARGET_LIB) -Wl,-l$(UNITY_QNX_GLES2_LIB) 
+LIBS = 
+PLUGIN_SHARED = libRenderingPlugin.so
+CXX = ntoaarch64-g++
+
+ifeq (, $(shell echo $(QNX_TARGET)))
+$(error "QNX_TARGET is not set.")
+endif
+
+ifeq (, $(shell echo $(QNX_HOST)))
+$(error "QNX_HOST is not set.")
+endif
+
+# Check if the CXX variable is set to a valid compiler
+ifeq (, $(shell which $(CXX)))
+$(error "No $(CXX) in PATH. Did you set '$$QNX_HOST/usr/bin' in your PATH?")
+endif
+
+.cpp.o:
+	$(CXX) $(CXXFLAGS) -c -o $@ $<
+
+all: clean shared
+
+cleanobjs:
+	rm -f $(OBJS)
+
+cleanlib:
+	rm -f $(PLUGIN_SHARED)
+
+clean: cleanobjs cleanlib
+
+shared: $(OBJS)
+	$(CXX) $(LDFLAGS) -o $(PLUGIN_SHARED) $(OBJS) $(LIBS)

PluginSource/source/PlatformBase.h

@@ -28,7 +28,7 @@
 	#endif
 #elif defined(__ANDROID__)
 	#define UNITY_ANDROID 1
-#elif defined(UNITY_METRO) || defined(UNITY_LINUX) || defined(UNITY_WEBGL) || defined (UNITY_EMBEDDED_LINUX) || defined (UNITY_EMBEDDED_LINUX_GL)
+#elif defined(UNITY_METRO) || defined(UNITY_LINUX) || defined(UNITY_WEBGL) || defined (UNITY_EMBEDDED_LINUX) || defined (UNITY_EMBEDDED_LINUX_GL) || defined (UNITY_QNX)
 	// these are defined externally
 #elif defined(__EMSCRIPTEN__)
 	// this is already defined in Unity 5.6
@@ -68,6 +68,9 @@
 	#ifndef SUPPORT_VULKAN
 		#define SUPPORT_VULKAN 0
 	#endif
+#elif UNITY_QNX
+	#define SUPPORT_OPENGL_UNIFIED 1
+	#define SUPPORT_OPENGL_ES 1
 #endif
 
 #if UNITY_IOS || UNITY_TVOS || UNITY_OSX

PluginSource/source/RenderAPI_OpenGLCoreES.cpp

@@ -29,6 +29,8 @@
 #	define GL_GLEXT_PROTOTYPES
 #	include <GL/gl.h>
 #endif
+#elif UNITY_QNX
+#	include <GLES2/gl2.h>
 #else
 #	error Unknown platform
 #endif

README.md

@@ -31,7 +31,8 @@ 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)
+* EmbeddedLinux (OpenGL, OpenGL ES , Vulkan)
+* QNX (OpenGL ES)
 * ...more platforms might be coming soon, we just did not get around to adding project files yet.
 
 Code is organized as follows:
@@ -43,6 +44,7 @@ Code is organized as follows:
 	* `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
+	* `projects/QNX`: Makefile for Linux requires QNX to be installed and environment variables to be set
 * `UnityProject` is the Unity (2023.1.15f1 was tested) project.
 	* Single `scene` that contains the plugin sample scene.