diff --git a/CMakeLists.txt b/CMakeLists.txt index 44dcb4d4..dd5c35aa 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -12,8 +12,14 @@ set(GLFW_VERSION_FULL "${GLFW_VERSION}.${GLFW_VERSION_PATCH}${GLFW_VERSION_EXTRA option(GLFW_BUILD_EXAMPLES "Build the GLFW example programs" ON) option(GLFW_BUILD_TESTS "Build the GLFW test programs" ON) option(BUILD_SHARED_LIBS "Build shared libraries" OFF) +option(GLFW_USE_EGL "Build for EGL and OpenGL ES platform (Currently only X11)" OFF) -find_package(OpenGL REQUIRED) +if (GLFW_USE_EGL) + SET(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMake/modules) + find_package(EGL REQUIRED) +else() + find_package(OpenGL REQUIRED) +endif() #-------------------------------------------------------------------- # Enable all warnings on GCC, regardless of OS @@ -39,8 +45,14 @@ elseif (UNIX AND APPLE) set(_GLFW_COCOA_NSGL 1) message(STATUS "Building GLFW for Cocoa and NSOpenGL on Mac OS X") elseif (UNIX AND NOT APPLE) - set(_GLFW_X11_GLX 1) - message(STATUS "Building GLFW for X11 and GLX on a Unix-like system") + set(_GLFW_X11 1) + if (GLFW_USE_EGL) + set(_GLFW_X11_EGL 1) + message(STATUS "Building GLFW for X11 and EGL on a Unix-like system") + else() + set(_GLFW_X11_GLX 1) + message(STATUS "Building GLFW for X11 and GLX on a Unix-like system") + endif() else() message(FATAL_ERROR "No supported platform was detected") endif() @@ -62,20 +74,18 @@ if (_GLFW_WIN32_WGL) endif() #-------------------------------------------------------------------- -# Set up GLFW for Xlib and GLX on Unix-like systems with X Windows +# Set up GLFW for Xlib and GLX or EGL on Unix-like systems with X Windows #-------------------------------------------------------------------- -if (_GLFW_X11_GLX) +if (_GLFW_X11) find_package(X11 REQUIRED) - # Set up library and include paths - list(APPEND glfw_INCLUDE_DIRS ${X11_X11_INCLUDE_PATH} ${OPENGL_INCLUDE_DIR}) - list(APPEND glfw_LIBRARIES ${X11_X11_LIB} ${OPENGL_gl_LIBRARY}) - - set(GLFW_PKG_DEPS "gl x11") set(GLFW_PKG_LIBS "") + set(GLFW_PKG_DEPS "x11") - include(CheckFunctionExists) + # Set up library and include paths + list(APPEND glfw_INCLUDE_DIRS ${X11_X11_INCLUDE_PATH}) + list(APPEND glfw_LIBRARIES ${X11_X11_LIB}) # Check for XRandR (modern resolution switching extension) if (X11_Xrandr_FOUND) @@ -121,6 +131,25 @@ if (_GLFW_X11_GLX) set(GLFW_PKG_LIBS "${GLFW_PKG_LIBS} -lm") endif() + if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux") + set(_GLFW_USE_LINUX_JOYSTICKS 1) + endif() + +endif() + +#-------------------------------------------------------------------- +# GLX Context +#-------------------------------------------------------------------- +if (_GLFW_X11_GLX) + + # Set up library and include paths + list(APPEND glfw_INCLUDE_DIRS${OPENGL_INCLUDE_DIR}) + list(APPEND glfw_LIBRARIES ${OPENGL_gl_LIBRARY}) + + set(GLFW_PKG_DEPS "${GLFW_PKG_DEPS} gl") + + include(CheckFunctionExists) + set(CMAKE_REQUIRED_LIBRARIES ${OPENGL_gl_LIBRARY}) check_function_exists(glXGetProcAddress _GLFW_HAS_GLXGETPROCADDRESS) @@ -160,9 +189,50 @@ if (_GLFW_X11_GLX) endif() endif() - if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux") - set(_GLFW_USE_LINUX_JOYSTICKS 1) +endif() + +#-------------------------------------------------------------------- +# EGL Context +#-------------------------------------------------------------------- +if (_GLFW_X11_EGL) + + # Set up library and include paths + list(APPEND glfw_INCLUDE_DIRS${EGL_INCLUDE_DIR}) + list(APPEND glfw_LIBRARIES ${EGL_LIBRARY}) + + set(GLFW_PKG_DEPS "${GLFW_PKG_DEPS} egl") + + include(CheckFunctionExists) + + set(CMAKE_REQUIRED_LIBRARIES ${EGL_LIBRARY}) + + check_function_exists(eglGetProcAddress _GLFW_HAS_EGLGETPROCADDRESS) + + if (NOT _GLFW_HAS_EGLGETPROCADDRESS) + message(WARNING "No eglGetProcAddress found") + + # Check for dlopen support as a fallback + + find_library(DL_LIBRARY dl) + mark_as_advanced(DL_LIBRARY) + if (DL_LIBRARY) + set(CMAKE_REQUIRED_LIBRARIES ${DL_LIBRARY}) + else() + set(CMAKE_REQUIRED_LIBRARIES "") + endif() + + check_function_exists(dlopen _GLFW_HAS_DLOPEN) + + if (NOT _GLFW_HAS_DLOPEN) + message(FATAL_ERROR "No entry point retrieval mechanism found") + endif() + + if (DL_LIBRARY) + list(APPEND glfw_LIBRARIES ${DL_LIBRARY}) + set(GLFW_PKG_LIBS "${GLFW_PKG_LIBS} -ldl") + endif() endif() + endif() #-------------------------------------------------------------------- diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index add05982..9a4fba68 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -25,6 +25,11 @@ elseif (_GLFW_X11_GLX) set(glfw_SOURCES ${common_SOURCES} x11_clipboard.c x11_fullscreen.c x11_gamma.c x11_init.c x11_input.c x11_joystick.c x11_keysym2unicode.c x11_opengl.c x11_time.c x11_window.c) +elseif (_GLFW_X11_EGL) + set(glfw_HEADERS ${common_HEADERS} x11_egl_platform.h) + set(glfw_SOURCES ${common_SOURCES} x11_clipboard.c + x11_gamma.c x11_init.c x11_input.c x11_joystick.c + x11_keysym2unicode.c x11_egl_opengl.c x11_time.c x11_window.c) endif() add_library(glfw ${glfw_SOURCES} ${glfw_HEADERS})