Switching from GLEW to GLAD, WIP refactoring math library to separate built library, 'hydra'.

.gitmodules

@@ -0,0 +1,9 @@
+[submodule "3rdparty/glfw"]
+	path = 3rdparty/glfw
+	url = git@github.com:glfw/glfw.git
+[submodule "3rdparty/glad"]
+	path = 3rdparty/glad
+	url = git@github.com:Dav1dde/glad.git
+[submodule "hydra"]
+	path = hydra
+	url = git@github.com:KrakenEngine/hydra.git

CMakeLists.txt

@@ -84,6 +84,30 @@ if(Boost_FOUND)
   target_link_libraries(kraken ${Boost_LIBRARIES})
 endif()
 
+# ---- Hydra ----
+add_subdirectory(hydra)
+include_directories(hydra/include)
+target_link_libraries(kraken hydra)
+
+# ---- OpenGL ----
+find_package(OpenGL REQUIRED)
+include_directories( ${OPENGL_INCLUDE_DIRS} )
+target_link_libraries(kraken ${OPENGL_LIBRARIES})
+
+# ---- GLAD ----
+add_subdirectory(3rdparty/glad)
+include_directories(${GLAD_INCLUDE_DIRS})
+target_link_libraries(kraken glad)
+
+# ---- GLFW ----
+set(GLFW_BUILD_EXAMPLES OFF CACHE INTERNAL "Build the GLFW example programs")
+set(GLFW_BUILD_TESTS OFF CACHE INTERNAL "Build the GLFW test programs")
+set(GLFW_BUILD_DOCS OFF CACHE INTERNAL "Build the GLFW documentation")
+set(GLFW_INSTALL OFF CACHE INTERNAL "Generate installation target")
+add_subdirectory(3rdparty/glfw)
+include_directories(3rdparty/glfw/include)
+target_link_libraries(kraken glfw ${GLFW_LIBRARIES})
+
 # add_custom_target(package
 #   COMMENT "Compressing..."
 #   WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/archive"

kraken/KREngine-common.h

@@ -114,7 +114,7 @@ typedef uint16_t __uint16_t;
 typedef int8_t __int8_t;
 typedef uint8_t __uint8_t;
 
-#include <GL/glew.h>
+#include <glad/glad.h>
 // OpenGL ES 2.0 mapping to OpenGL 3.2
 #define glDeleteQueriesEXT glDeleteQueries
 #define glGenQueriesEXT glGenQueries

kraken/KRHelpers.h

@@ -2,7 +2,7 @@
 #define KRHELPERS_H
 
 #if defined(_WIN32) || defined(_WIN64)
-#include <GL/glew.h>
+#include <glad/glad.h>
 #elif defined(__linux__) || defined(__unix__) || defined(__posix__)
 #include <GL/gl.h>
 #include <GL/glu.h>