Starting to isolate api

engine/NBGraphics/CMakeLists.txt

@@ -56,6 +56,18 @@ toAbsolutePath(NB_GRAPHICS_INCLUDE
 set(NB_GRAPHICS_SOURCE ${NB_GRAPHICS_SOURCE} PARENT_SCOPE)
 set(NB_GRAPHICS_INCLUDE ${NB_GRAPHICS_INCLUDE} PARENT_SCOPE)
 
+if (NB_GRAPHICS_API_OGL)
+    toAbsolutePath(NB_GRAPHICS_API_OGL_SOURCE
+        ./src/OGL/Buffers.cpp
+    )
+    toAbsolutePath(NB_GRAPHICS_API_OGL_INCLUDE
+        ./include/NBGraphics/OGL/Buffers.hpp
+    )
+    set(NB_GRAPHICS_SOURCE ${NB_GRAPHICS_SOURCE} ${NB_GRAPHICS_API_OGL_SOURCE} PARENT_SCOPE)
+    set(NB_GRAPHICS_INCLUDE ${NB_GRAPHICS_INCLUDE} ${NB_GRAPHICS_API_OGL_SOURCE} PARENT_SCOPE)
+    add_library(NBGraphicsAPI_OGL ${NB_GRAPHICS_API_OGL_SOURCE})
+endif()
+
 add_library(NBGraphics 
     ${NB_GRAPHICS_SOURCE}
     ${GLAD_PATH}/src/glad.c
@@ -63,6 +75,11 @@ add_library(NBGraphics
 add_library(NBEngine::Graphics ALIAS NBGraphics)
 add_dependencies(NBGraphics NBCore)
 add_dependencies(NBGraphics glfw)
+
+if(NB_GRAPHICS_API_OGL)
+    add_dependencies(NBGraphics NBGraphicsAPI_OGL)
+endif()
+
 target_link_libraries(NBGraphics
     PUBLIC glfw
     PUBLIC NBCore