[Feat] (MG_Impl/GLX): Implement glXGetProcAddress.

CMakeLists.txt

@@ -17,7 +17,10 @@ find_library(GLSLANG_LIB glslang PATHS ${CMAKE_SOURCE_DIR}/libraries/arm64-v8a/)
 add_library(${CMAKE_PROJECT_NAME} SHARED 
         MobileGL/Init.cpp
 
-        MobileGL/MG_Util/Debug/Log.cpp)
+        MobileGL/MG_Util/Debug/Log.cpp 
+
+        MobileGL/MG_Impl/GLXImpl/Exporting/Definitions.cpp
+        MobileGL/MG_Impl/GLXImpl/LookUp/LookUp.cpp)
 
 target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE
         ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libglslang.a

MobileGL/Includes.h

@@ -4,6 +4,18 @@
 #define __ANDROID_API__ 26 // fix pthread_getname_np not defined
 #endif
 
+#ifdef _WIN32
+#define MOBILEGL_EXPORT extern "C" __declspec(dllexport)
+#else
+#define MOBILEGL_EXPORT extern "C" __attribute__((visibility("default")))
+#endif
+
+#define MOBILEGL_API MOBILEGL_EXPORT
+
+#define MOBILEGL_GLX_API MOBILEGL_API
+#define MOBILEGL_GL_API  MOBILEGL_API
+#define MOBILEGL_EGL_API MOBILEGL_API
+
 #include <cstring>
 #include <iostream>
 #include <cstdio>
@@ -56,4 +68,5 @@
 #include <GL/glext.h>
 
 #include "MG_Util/Debug/Log.h"
-#include "Config.h"
+#include "Config.h"
+#include "MG_Impl/GLXImpl/LookUp/LookUp.h"

MobileGL/MG_Impl/GLXImpl/Exporting/Definitions.cpp

@@ -0,0 +1,9 @@
+#include "../../../Includes.h"
+
+MOBILEGL_GLX_API void* glXGetProcAddress(const char* name) {
+    return MG_Impl::GLXImpl::GetProcAddress(name);
+}
+
+MOBILEGL_GLX_API void* glXGetProcAddressARB(const char* name) {
+    return MG_Impl::GLXImpl::GetProcAddressARB(name);
+}

MobileGL/MG_Impl/GLXImpl/LookUp/LookUp.cpp

@@ -0,0 +1,19 @@
+#include "../../../Includes.h"
+
+namespace MG_Impl::GLXImpl {
+    void* GetProcAddress(const char* name) {
+        MGLOG_D("glXGetProcAddress(\"%s\")", name);
+        void* proc = dlsym(RTLD_DEFAULT, (const char*)name);
+
+        if (!proc) {
+            MGLOG_W("Failed to get function: %s", (const char*)name);
+            return nullptr;
+        }
+
+        return proc;
+    }
+
+    void* GetProcAddressARB(const char* name) {
+        return GetProcAddress(name);
+    }
+}

MobileGL/MG_Impl/GLXImpl/LookUp/LookUp.h

@@ -0,0 +1,8 @@
+#pragma once
+
+namespace MG_Impl {
+    namespace GLXImpl {
+        void* GetProcAddress(const char* name);
+        void* GetProcAddressARB(const char* name);
+    }
+}