# 
#  Copyright 2015 High Fidelity, Inc.
#  Created by Bradley Austin Davis on 2015/10/10
#
#  Distributed under the Apache License, Version 2.0.
#  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
# 
macro(TARGET_OPENGL)
    if (USE_GLES)
        if (ANDROID)
            find_library(EGL EGL)
            find_library(OpenGLES3 GLESv3)
            list(APPEND IGNORE_COPY_LIBS ${OpenGLES3} ${OpenGLES2} ${EGL})
            target_link_libraries(${TARGET_NAME} ${OpenGLES3} ${EGL})
        else()
            set(GLAD_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/interface/external/glad/include")
            target_include_directories(${TARGET_NAME} PUBLIC ${GLAD_INCLUDE_DIR})

            find_package(OpenGL REQUIRED)
            target_link_libraries(${TARGET_NAME} "${OPENGL_LIBRARY}")
            target_include_directories(${TARGET_NAME} PUBLIC ${OPENGL_INCLUDE_DIR})
        endif()
    else() 
        if (APPLE)
            # link in required OS X frameworks and include the right GL headers
            find_library(OpenGL OpenGL)
            target_link_libraries(${TARGET_NAME} ${OpenGL})
        else()
            find_package(OpenGL REQUIRED)
            target_link_libraries(${TARGET_NAME} "${OPENGL_LIBRARY}")
            target_include_directories(${TARGET_NAME} PUBLIC ${OPENGL_INCLUDE_DIR})
        endif()
        target_nsight()
        target_glew()
    endif()
endmacro()