[new renderer] add mac&ios cmake support (#342)

* add mac&ios cmake support

* remove unused condition

Author: PatriceJiang

CMakeLists.txt

@@ -46,6 +46,8 @@ target_link_libraries(external
     ext_md5
 )
 
+
+
 # use lua/js specific libs by property to prevent conflict
 if(BUILD_JS_LIBS)
     add_subdirectory(spidermonkey)
@@ -134,3 +136,12 @@ set_target_properties(external
     FOLDER "External"
 )
 
+
+if(MACOSX OR IOS)
+    add_subdirectory(glsl-optimizer)
+    target_link_libraries(external 
+    ext_glcpp_library
+    ext_glsl_optimizer
+    ext_libmesa
+    )
+endif()

glsl-optimizer/CMakeLists.txt

@@ -0,0 +1,27 @@
+cmake_minimum_required(VERSION 3.6)
+
+set(lib_name glsl_optimizer)
+set(target_name ext_${lib_name})
+
+project(${lib_name})
+
+include(../cmake/CocosExternalConfig.cmake)
+
+add_library(ext_glcpp_library STATIC IMPORTED GLOBAL)
+add_library(ext_glsl_optimizer STATIC IMPORTED GLOBAL)
+add_library(ext_libmesa STATIC IMPORTED GLOBAL)
+
+
+set_target_properties(${target_name} PROPERTIES
+  INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR}/include"
+)
+
+set_target_properties(ext_glcpp_library PROPERTIES
+  IMPORTED_LOCATION "${platform_spec_path}/libglcpp-library.a"
+)
+set_target_properties(ext_glsl_optimizer PROPERTIES
+  IMPORTED_LOCATION "${platform_spec_path}/libglsl_optimizer.a"
+)
+set_target_properties(ext_libmesa PROPERTIES
+  IMPORTED_LOCATION "${platform_spec_path}/libmesa.a"
+)