OPTION(FREEGLUT_GLES1 "Use OpenGL ES 1.x (requires EGL)" OFF)
OPTION(FREEGLUT_GLES2 "Use OpenGL ES 2.x (requires EGL) (overrides BUILD_GLES1)" OFF)
+# For OpenGL ES (GLES):
+# - compile with -DFREEGLUT_GLES1 and -DFREEGLUT_GLES2 to cleanly
+# bootstrap headers inclusion in freeglut_std.h; these constants
+# also need to be defined in client applications (e.g through
+# pkg-config), but use GLES constants directly for all other needs
+# - define GLES version-specific library
IF(FREEGLUT_GLES2)
- ADD_DEFINITIONS(-DGLESv2)
+ ADD_DEFINITIONS(-DFREEGLUT_GLES2)
LIST(APPEND LIBS GLESv2 EGL)
ELSEIF(FREEGLUT_GLES1)
- ADD_DEFINITIONS(-DGLESv1)
+ ADD_DEFINITIONS(-DFREEGLUT_GLES1)
LIST(APPEND LIBS GLESv1 EGL)
ELSE()
FIND_PACKAGE(OpenGL REQUIRED)
# pkg-config support, to install at $(libdir)/pkgconfig
# Define static build dependencies
IF(WIN32)
- SET(LIBS_PRIVATE "-lopengl32 -lwinmm -lgdi32")
+ SET(PC_LIBS_PRIVATE "-lopengl32 -lwinmm -lgdi32")
ELSEIF(ANDROID)
- SET(LIBS_PRIVATE "-llog -landroid -lGLESv2 -lEGL")
+ SET(PC_LIBS_PRIVATE "-llog -landroid -lGLESv2 -lEGL")
ELSE()
- SET(LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGLESv2 -lEGL")
+ SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGLESv2 -lEGL")
+ENDIF()
+# Client applications need to define FreeGLUT GLES version to
+# bootstrap headers inclusion in freeglut_std.h:
+IF(FREEGLUT_GLES2)
+ SET(PC_CFLAGS "-DFREEGLUT_GLES2")
+ELSEIF(FREEGLUT_GLES1)
+ SET(PC_CFLAGS "-DFREEGLUT_GLES1")
ENDIF()
CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/freeglut.pc.in ${CMAKE_BINARY_DIR}/freeglut.pc @ONLY)
INSTALL(FILES ${CMAKE_BINARY_DIR}/freeglut.pc DESTINATION share/pkgconfig)
-# TODO: change the library name when building for GLES, e.g. -lglut-GLES2
+# TODO: change the library and .pc name when building for GLES,
+# e.g. -lglut-GLES2
/*
* Always include OpenGL and GLU headers
*/
-#ifdef ANDROID
-/* Use EGL (implies OpenGL ES) */
-/* TODO: EGL/GLES builds should be more generally defined, possibly by
- generating this file dynamically */
+#ifdef FREEGLUT_GLES2
# include <EGL/egl.h>
-/* TODO: we probably need 2 builds: -lGLESv1 and -lGLESv2 */
-/* #include <GLES/gl.h> */
# include <GLES2/gl2.h>
-/* TODO: temporary work-around for e.g. glutWireCube */
-# define GLdouble GLfloat
+#elif FREEGLUT_GLES1
+# include <EGL/egl.h>
+# include <GLES/gl.h>
#else
# include <GL/gl.h>
# include <GL/glu.h>
/*
* Geometry functions, see freeglut_geometry.c
*/
+#ifdef EGL_VERSION_1_0
+/* TODO: temporary work-around for missing GLdouble in GLES */
+# define GLdouble GLfloat
+#endif
+
FGAPI void FGAPIENTRY glutWireCube( GLdouble size );
FGAPI void FGAPIENTRY glutSolidCube( GLdouble size );
FGAPI void FGAPIENTRY glutWireSphere( GLdouble radius, GLint slices, GLint stacks );